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7c673cae FG |
1 | // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- |
2 | // vim: ts=8 sw=2 smarttab | |
3 | /* | |
4 | * Ceph - scalable distributed file system | |
5 | * | |
6 | * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net> | |
7 | * | |
8 | * This is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU Lesser General Public | |
10 | * License version 2.1, as published by the Free Software | |
11 | * Foundation. See file COPYING. | |
12 | * | |
13 | */ | |
14 | ||
15 | ||
16 | // unix-ey fs stuff | |
17 | #include <unistd.h> | |
18 | #include <sys/types.h> | |
19 | #include <time.h> | |
20 | #include <utime.h> | |
11fdf7f2 | 21 | #include <string.h> |
7c673cae FG |
22 | #include <sys/stat.h> |
23 | #include <sys/param.h> | |
24 | #include <fcntl.h> | |
25 | #include <sys/file.h> | |
26 | #include <sys/utsname.h> | |
27 | #include <sys/uio.h> | |
28 | ||
29 | #include <boost/lexical_cast.hpp> | |
30 | #include <boost/fusion/include/std_pair.hpp> | |
31 | ||
32 | #if defined(__FreeBSD__) | |
33 | #define XATTR_CREATE 0x1 | |
34 | #define XATTR_REPLACE 0x2 | |
35 | #else | |
36 | #include <sys/xattr.h> | |
37 | #endif | |
38 | ||
39 | #if defined(__linux__) | |
40 | #include <linux/falloc.h> | |
41 | #endif | |
42 | ||
43 | #include <sys/statvfs.h> | |
44 | ||
45 | #include "common/config.h" | |
46 | #include "common/version.h" | |
47 | ||
11fdf7f2 TL |
48 | #include "mon/MonClient.h" |
49 | ||
50 | #include "messages/MClientCaps.h" | |
51 | #include "messages/MClientLease.h" | |
52 | #include "messages/MClientQuota.h" | |
53 | #include "messages/MClientReclaim.h" | |
54 | #include "messages/MClientReclaimReply.h" | |
7c673cae | 55 | #include "messages/MClientReconnect.h" |
11fdf7f2 | 56 | #include "messages/MClientReply.h" |
7c673cae FG |
57 | #include "messages/MClientRequest.h" |
58 | #include "messages/MClientRequestForward.h" | |
11fdf7f2 | 59 | #include "messages/MClientSession.h" |
7c673cae FG |
60 | #include "messages/MClientSnap.h" |
61 | #include "messages/MCommandReply.h" | |
7c673cae FG |
62 | #include "messages/MFSMap.h" |
63 | #include "messages/MFSMapUser.h" | |
11fdf7f2 TL |
64 | #include "messages/MMDSMap.h" |
65 | #include "messages/MOSDMap.h" | |
7c673cae FG |
66 | |
67 | #include "mds/flock.h" | |
11fdf7f2 | 68 | #include "mds/cephfs_features.h" |
7c673cae FG |
69 | #include "osd/OSDMap.h" |
70 | #include "osdc/Filer.h" | |
71 | ||
72 | #include "common/Cond.h" | |
73 | #include "common/Mutex.h" | |
74 | #include "common/perf_counters.h" | |
75 | #include "common/admin_socket.h" | |
76 | #include "common/errno.h" | |
77 | #include "include/str_list.h" | |
78 | ||
79 | #define dout_subsys ceph_subsys_client | |
80 | ||
81 | #include "include/lru.h" | |
82 | #include "include/compat.h" | |
83 | #include "include/stringify.h" | |
84 | ||
85 | #include "Client.h" | |
86 | #include "Inode.h" | |
87 | #include "Dentry.h" | |
b32b8144 | 88 | #include "Delegation.h" |
7c673cae FG |
89 | #include "Dir.h" |
90 | #include "ClientSnapRealm.h" | |
91 | #include "Fh.h" | |
92 | #include "MetaSession.h" | |
93 | #include "MetaRequest.h" | |
94 | #include "ObjecterWriteback.h" | |
95 | #include "posix_acl.h" | |
96 | ||
11fdf7f2 | 97 | #include "include/ceph_assert.h" |
7c673cae FG |
98 | #include "include/stat.h" |
99 | ||
100 | #include "include/cephfs/ceph_statx.h" | |
101 | ||
102 | #if HAVE_GETGROUPLIST | |
103 | #include <grp.h> | |
104 | #include <pwd.h> | |
105 | #include <unistd.h> | |
106 | #endif | |
107 | ||
108 | #undef dout_prefix | |
109 | #define dout_prefix *_dout << "client." << whoami << " " | |
110 | ||
111 | #define tout(cct) if (!cct->_conf->client_trace.empty()) traceout | |
112 | ||
113 | // FreeBSD fails to define this | |
114 | #ifndef O_DSYNC | |
115 | #define O_DSYNC 0x0 | |
116 | #endif | |
117 | // Darwin fails to define this | |
118 | #ifndef O_RSYNC | |
119 | #define O_RSYNC 0x0 | |
120 | #endif | |
121 | ||
122 | #ifndef O_DIRECT | |
123 | #define O_DIRECT 0x0 | |
124 | #endif | |
125 | ||
126 | #define DEBUG_GETATTR_CAPS (CEPH_CAP_XATTR_SHARED) | |
127 | ||
128 | void client_flush_set_callback(void *p, ObjectCacher::ObjectSet *oset) | |
129 | { | |
130 | Client *client = static_cast<Client*>(p); | |
131 | client->flush_set_callback(oset); | |
132 | } | |
133 | ||
134 | ||
135 | // ------------- | |
136 | ||
137 | Client::CommandHook::CommandHook(Client *client) : | |
138 | m_client(client) | |
139 | { | |
140 | } | |
141 | ||
11fdf7f2 TL |
142 | bool Client::CommandHook::call(std::string_view command, |
143 | const cmdmap_t& cmdmap, | |
144 | std::string_view format, bufferlist& out) | |
7c673cae | 145 | { |
11fdf7f2 | 146 | std::unique_ptr<Formatter> f(Formatter::create(format)); |
7c673cae FG |
147 | f->open_object_section("result"); |
148 | m_client->client_lock.Lock(); | |
149 | if (command == "mds_requests") | |
11fdf7f2 | 150 | m_client->dump_mds_requests(f.get()); |
7c673cae | 151 | else if (command == "mds_sessions") |
11fdf7f2 | 152 | m_client->dump_mds_sessions(f.get()); |
7c673cae | 153 | else if (command == "dump_cache") |
11fdf7f2 | 154 | m_client->dump_cache(f.get()); |
7c673cae FG |
155 | else if (command == "kick_stale_sessions") |
156 | m_client->_kick_stale_sessions(); | |
157 | else if (command == "status") | |
11fdf7f2 | 158 | m_client->dump_status(f.get()); |
7c673cae | 159 | else |
11fdf7f2 | 160 | ceph_abort_msg("bad command registered"); |
7c673cae FG |
161 | m_client->client_lock.Unlock(); |
162 | f->close_section(); | |
163 | f->flush(out); | |
7c673cae FG |
164 | return true; |
165 | } | |
166 | ||
167 | ||
168 | // ------------- | |
169 | ||
170 | dir_result_t::dir_result_t(Inode *in, const UserPerm& perms) | |
171 | : inode(in), offset(0), next_offset(2), | |
172 | release_count(0), ordered_count(0), cache_index(0), start_shared_gen(0), | |
173 | perms(perms) | |
174 | { } | |
175 | ||
176 | void Client::_reset_faked_inos() | |
177 | { | |
178 | ino_t start = 1024; | |
179 | free_faked_inos.clear(); | |
180 | free_faked_inos.insert(start, (uint32_t)-1 - start + 1); | |
181 | last_used_faked_ino = 0; | |
11fdf7f2 | 182 | last_used_faked_root = 0; |
7c673cae FG |
183 | _use_faked_inos = sizeof(ino_t) < 8 || cct->_conf->client_use_faked_inos; |
184 | } | |
185 | ||
186 | void Client::_assign_faked_ino(Inode *in) | |
187 | { | |
11fdf7f2 TL |
188 | if (0 == last_used_faked_ino) |
189 | last_used_faked_ino = last_used_faked_ino + 2048; // start(1024)~2048 reserved for _assign_faked_root | |
7c673cae FG |
190 | interval_set<ino_t>::const_iterator it = free_faked_inos.lower_bound(last_used_faked_ino + 1); |
191 | if (it == free_faked_inos.end() && last_used_faked_ino > 0) { | |
11fdf7f2 | 192 | last_used_faked_ino = 2048; |
7c673cae FG |
193 | it = free_faked_inos.lower_bound(last_used_faked_ino + 1); |
194 | } | |
11fdf7f2 | 195 | ceph_assert(it != free_faked_inos.end()); |
7c673cae | 196 | if (last_used_faked_ino < it.get_start()) { |
11fdf7f2 | 197 | ceph_assert(it.get_len() > 0); |
7c673cae FG |
198 | last_used_faked_ino = it.get_start(); |
199 | } else { | |
200 | ++last_used_faked_ino; | |
11fdf7f2 | 201 | ceph_assert(it.get_start() + it.get_len() > last_used_faked_ino); |
7c673cae FG |
202 | } |
203 | in->faked_ino = last_used_faked_ino; | |
204 | free_faked_inos.erase(in->faked_ino); | |
205 | faked_ino_map[in->faked_ino] = in->vino(); | |
206 | } | |
207 | ||
11fdf7f2 TL |
208 | /* |
209 | * In the faked mode, if you export multiple subdirectories, | |
210 | * you will see that the inode numbers of the exported subdirectories | |
211 | * are the same. so we distinguish the mount point by reserving | |
212 | * the "fake ids" between "1024~2048" and combining the last | |
213 | * 10bits(0x3ff) of the "root inodes". | |
214 | */ | |
215 | void Client::_assign_faked_root(Inode *in) | |
216 | { | |
217 | interval_set<ino_t>::const_iterator it = free_faked_inos.lower_bound(last_used_faked_root + 1); | |
218 | if (it == free_faked_inos.end() && last_used_faked_root > 0) { | |
219 | last_used_faked_root = 0; | |
220 | it = free_faked_inos.lower_bound(last_used_faked_root + 1); | |
221 | } | |
222 | assert(it != free_faked_inos.end()); | |
223 | vinodeno_t inode_info = in->vino(); | |
224 | uint64_t inode_num = (uint64_t)inode_info.ino; | |
225 | ldout(cct, 10) << "inode_num " << inode_num << "inode_num & 0x3ff=" << (inode_num & 0x3ff)<< dendl; | |
226 | last_used_faked_root = it.get_start() + (inode_num & 0x3ff); // 0x3ff mask and get_start will not exceed 2048 | |
227 | assert(it.get_start() + it.get_len() > last_used_faked_root); | |
228 | ||
229 | in->faked_ino = last_used_faked_root; | |
230 | free_faked_inos.erase(in->faked_ino); | |
231 | faked_ino_map[in->faked_ino] = in->vino(); | |
232 | } | |
233 | ||
7c673cae FG |
234 | void Client::_release_faked_ino(Inode *in) |
235 | { | |
236 | free_faked_inos.insert(in->faked_ino); | |
237 | faked_ino_map.erase(in->faked_ino); | |
238 | } | |
239 | ||
240 | vinodeno_t Client::_map_faked_ino(ino_t ino) | |
241 | { | |
242 | vinodeno_t vino; | |
243 | if (ino == 1) | |
244 | vino = root->vino(); | |
245 | else if (faked_ino_map.count(ino)) | |
246 | vino = faked_ino_map[ino]; | |
247 | else | |
248 | vino = vinodeno_t(0, CEPH_NOSNAP); | |
11fdf7f2 | 249 | ldout(cct, 10) << __func__ << " " << ino << " -> " << vino << dendl; |
7c673cae FG |
250 | return vino; |
251 | } | |
252 | ||
253 | vinodeno_t Client::map_faked_ino(ino_t ino) | |
254 | { | |
11fdf7f2 | 255 | std::lock_guard lock(client_lock); |
7c673cae FG |
256 | return _map_faked_ino(ino); |
257 | } | |
258 | ||
259 | // cons/des | |
260 | ||
261 | Client::Client(Messenger *m, MonClient *mc, Objecter *objecter_) | |
262 | : Dispatcher(m->cct), | |
7c673cae | 263 | timer(m->cct, client_lock), |
11fdf7f2 TL |
264 | client_lock("Client::client_lock"), |
265 | messenger(m), | |
266 | monclient(mc), | |
267 | objecter(objecter_), | |
268 | whoami(mc->get_global_id()), | |
7c673cae FG |
269 | async_ino_invalidator(m->cct), |
270 | async_dentry_invalidator(m->cct), | |
271 | interrupt_finisher(m->cct), | |
272 | remount_finisher(m->cct), | |
273 | objecter_finisher(m->cct), | |
11fdf7f2 TL |
274 | m_command_hook(this), |
275 | fscid(0) | |
7c673cae FG |
276 | { |
277 | _reset_faked_inos(); | |
7c673cae | 278 | |
7c673cae FG |
279 | user_id = cct->_conf->client_mount_uid; |
280 | group_id = cct->_conf->client_mount_gid; | |
281 | ||
7c673cae FG |
282 | if (cct->_conf->client_acl_type == "posix_acl") |
283 | acl_type = POSIX_ACL; | |
284 | ||
7c673cae FG |
285 | lru.lru_set_midpoint(cct->_conf->client_cache_mid); |
286 | ||
287 | // file handles | |
288 | free_fd_set.insert(10, 1<<30); | |
289 | ||
290 | mdsmap.reset(new MDSMap); | |
291 | ||
292 | // osd interfaces | |
293 | writeback_handler.reset(new ObjecterWriteback(objecter, &objecter_finisher, | |
294 | &client_lock)); | |
295 | objectcacher.reset(new ObjectCacher(cct, "libcephfs", *writeback_handler, client_lock, | |
296 | client_flush_set_callback, // all commit callback | |
297 | (void*)this, | |
298 | cct->_conf->client_oc_size, | |
299 | cct->_conf->client_oc_max_objects, | |
300 | cct->_conf->client_oc_max_dirty, | |
301 | cct->_conf->client_oc_target_dirty, | |
302 | cct->_conf->client_oc_max_dirty_age, | |
303 | true)); | |
304 | objecter_finisher.start(); | |
305 | filer.reset(new Filer(objecter, &objecter_finisher)); | |
31f18b77 | 306 | objecter->enable_blacklist_events(); |
7c673cae FG |
307 | } |
308 | ||
309 | ||
310 | Client::~Client() | |
311 | { | |
11fdf7f2 | 312 | ceph_assert(!client_lock.is_locked()); |
7c673cae | 313 | |
31f18b77 FG |
314 | // It is necessary to hold client_lock, because any inode destruction |
315 | // may call into ObjectCacher, which asserts that it's lock (which is | |
316 | // client_lock) is held. | |
317 | client_lock.Lock(); | |
7c673cae | 318 | tear_down_cache(); |
31f18b77 | 319 | client_lock.Unlock(); |
7c673cae FG |
320 | } |
321 | ||
322 | void Client::tear_down_cache() | |
323 | { | |
324 | // fd's | |
325 | for (ceph::unordered_map<int, Fh*>::iterator it = fd_map.begin(); | |
326 | it != fd_map.end(); | |
327 | ++it) { | |
328 | Fh *fh = it->second; | |
11fdf7f2 | 329 | ldout(cct, 1) << __func__ << " forcing close of fh " << it->first << " ino " << fh->inode->ino << dendl; |
7c673cae FG |
330 | _release_fh(fh); |
331 | } | |
332 | fd_map.clear(); | |
333 | ||
334 | while (!opened_dirs.empty()) { | |
335 | dir_result_t *dirp = *opened_dirs.begin(); | |
11fdf7f2 | 336 | ldout(cct, 1) << __func__ << " forcing close of dir " << dirp << " ino " << dirp->inode->ino << dendl; |
7c673cae FG |
337 | _closedir(dirp); |
338 | } | |
339 | ||
340 | // caps! | |
341 | // *** FIXME *** | |
342 | ||
343 | // empty lru | |
7c673cae | 344 | trim_cache(); |
11fdf7f2 | 345 | ceph_assert(lru.lru_get_size() == 0); |
7c673cae FG |
346 | |
347 | // close root ino | |
11fdf7f2 | 348 | ceph_assert(inode_map.size() <= 1 + root_parents.size()); |
7c673cae FG |
349 | if (root && inode_map.size() == 1 + root_parents.size()) { |
350 | delete root; | |
351 | root = 0; | |
352 | root_ancestor = 0; | |
353 | while (!root_parents.empty()) | |
354 | root_parents.erase(root_parents.begin()); | |
355 | inode_map.clear(); | |
356 | _reset_faked_inos(); | |
357 | } | |
358 | ||
11fdf7f2 | 359 | ceph_assert(inode_map.empty()); |
7c673cae FG |
360 | } |
361 | ||
362 | inodeno_t Client::get_root_ino() | |
363 | { | |
11fdf7f2 | 364 | std::lock_guard l(client_lock); |
7c673cae FG |
365 | if (use_faked_inos()) |
366 | return root->faked_ino; | |
367 | else | |
368 | return root->ino; | |
369 | } | |
370 | ||
371 | Inode *Client::get_root() | |
372 | { | |
11fdf7f2 | 373 | std::lock_guard l(client_lock); |
7c673cae FG |
374 | root->ll_get(); |
375 | return root; | |
376 | } | |
377 | ||
378 | ||
379 | // debug crapola | |
380 | ||
381 | void Client::dump_inode(Formatter *f, Inode *in, set<Inode*>& did, bool disconnected) | |
382 | { | |
383 | filepath path; | |
384 | in->make_long_path(path); | |
385 | ldout(cct, 1) << "dump_inode: " | |
386 | << (disconnected ? "DISCONNECTED ":"") | |
387 | << "inode " << in->ino | |
388 | << " " << path | |
389 | << " ref " << in->get_num_ref() | |
390 | << *in << dendl; | |
391 | ||
392 | if (f) { | |
393 | f->open_object_section("inode"); | |
394 | f->dump_stream("path") << path; | |
395 | if (disconnected) | |
396 | f->dump_int("disconnected", 1); | |
397 | in->dump(f); | |
398 | f->close_section(); | |
399 | } | |
400 | ||
401 | did.insert(in); | |
402 | if (in->dir) { | |
403 | ldout(cct, 1) << " dir " << in->dir << " size " << in->dir->dentries.size() << dendl; | |
404 | for (ceph::unordered_map<string, Dentry*>::iterator it = in->dir->dentries.begin(); | |
405 | it != in->dir->dentries.end(); | |
406 | ++it) { | |
407 | ldout(cct, 1) << " " << in->ino << " dn " << it->first << " " << it->second << " ref " << it->second->ref << dendl; | |
408 | if (f) { | |
409 | f->open_object_section("dentry"); | |
410 | it->second->dump(f); | |
411 | f->close_section(); | |
412 | } | |
413 | if (it->second->inode) | |
414 | dump_inode(f, it->second->inode.get(), did, false); | |
415 | } | |
416 | } | |
417 | } | |
418 | ||
419 | void Client::dump_cache(Formatter *f) | |
420 | { | |
421 | set<Inode*> did; | |
422 | ||
11fdf7f2 | 423 | ldout(cct, 1) << __func__ << dendl; |
7c673cae FG |
424 | |
425 | if (f) | |
426 | f->open_array_section("cache"); | |
427 | ||
428 | if (root) | |
429 | dump_inode(f, root, did, true); | |
430 | ||
431 | // make a second pass to catch anything disconnected | |
432 | for (ceph::unordered_map<vinodeno_t, Inode*>::iterator it = inode_map.begin(); | |
433 | it != inode_map.end(); | |
434 | ++it) { | |
435 | if (did.count(it->second)) | |
436 | continue; | |
437 | dump_inode(f, it->second, did, true); | |
438 | } | |
439 | ||
440 | if (f) | |
441 | f->close_section(); | |
442 | } | |
443 | ||
444 | void Client::dump_status(Formatter *f) | |
445 | { | |
11fdf7f2 | 446 | ceph_assert(client_lock.is_locked_by_me()); |
7c673cae FG |
447 | |
448 | ldout(cct, 1) << __func__ << dendl; | |
449 | ||
450 | const epoch_t osd_epoch | |
451 | = objecter->with_osdmap(std::mem_fn(&OSDMap::get_epoch)); | |
452 | ||
453 | if (f) { | |
454 | f->open_object_section("metadata"); | |
455 | for (const auto& kv : metadata) | |
456 | f->dump_string(kv.first.c_str(), kv.second); | |
457 | f->close_section(); | |
458 | ||
459 | f->dump_int("dentry_count", lru.lru_get_size()); | |
460 | f->dump_int("dentry_pinned_count", lru.lru_get_num_pinned()); | |
461 | f->dump_int("id", get_nodeid().v); | |
11fdf7f2 | 462 | entity_inst_t inst(messenger->get_myname(), messenger->get_myaddr_legacy()); |
1adf2230 | 463 | f->dump_object("inst", inst); |
11fdf7f2 TL |
464 | f->dump_object("addr", inst.addr); |
465 | f->dump_stream("inst_str") << inst.name << " " << inst.addr.get_legacy_str(); | |
466 | f->dump_string("addr_str", inst.addr.get_legacy_str()); | |
7c673cae FG |
467 | f->dump_int("inode_count", inode_map.size()); |
468 | f->dump_int("mds_epoch", mdsmap->get_epoch()); | |
469 | f->dump_int("osd_epoch", osd_epoch); | |
470 | f->dump_int("osd_epoch_barrier", cap_epoch_barrier); | |
f64942e4 | 471 | f->dump_bool("blacklisted", blacklisted); |
7c673cae FG |
472 | } |
473 | } | |
474 | ||
475 | int Client::init() | |
476 | { | |
477 | timer.init(); | |
478 | objectcacher->start(); | |
479 | ||
480 | client_lock.Lock(); | |
11fdf7f2 | 481 | ceph_assert(!initialized); |
7c673cae FG |
482 | |
483 | messenger->add_dispatcher_tail(this); | |
484 | client_lock.Unlock(); | |
485 | ||
486 | _finish_init(); | |
487 | return 0; | |
488 | } | |
489 | ||
490 | void Client::_finish_init() | |
491 | { | |
492 | client_lock.Lock(); | |
493 | // logger | |
494 | PerfCountersBuilder plb(cct, "client", l_c_first, l_c_last); | |
495 | plb.add_time_avg(l_c_reply, "reply", "Latency of receiving a reply on metadata request"); | |
496 | plb.add_time_avg(l_c_lat, "lat", "Latency of processing a metadata request"); | |
497 | plb.add_time_avg(l_c_wrlat, "wrlat", "Latency of a file data write operation"); | |
11fdf7f2 TL |
498 | plb.add_time_avg(l_c_read, "rdlat", "Latency of a file data read operation"); |
499 | plb.add_time_avg(l_c_fsync, "fsync", "Latency of a file sync operation"); | |
7c673cae FG |
500 | logger.reset(plb.create_perf_counters()); |
501 | cct->get_perfcounters_collection()->add(logger.get()); | |
502 | ||
503 | client_lock.Unlock(); | |
504 | ||
11fdf7f2 | 505 | cct->_conf.add_observer(this); |
7c673cae FG |
506 | |
507 | AdminSocket* admin_socket = cct->get_admin_socket(); | |
508 | int ret = admin_socket->register_command("mds_requests", | |
509 | "mds_requests", | |
510 | &m_command_hook, | |
511 | "show in-progress mds requests"); | |
512 | if (ret < 0) { | |
513 | lderr(cct) << "error registering admin socket command: " | |
514 | << cpp_strerror(-ret) << dendl; | |
515 | } | |
516 | ret = admin_socket->register_command("mds_sessions", | |
517 | "mds_sessions", | |
518 | &m_command_hook, | |
519 | "show mds session state"); | |
520 | if (ret < 0) { | |
521 | lderr(cct) << "error registering admin socket command: " | |
522 | << cpp_strerror(-ret) << dendl; | |
523 | } | |
524 | ret = admin_socket->register_command("dump_cache", | |
525 | "dump_cache", | |
526 | &m_command_hook, | |
527 | "show in-memory metadata cache contents"); | |
528 | if (ret < 0) { | |
529 | lderr(cct) << "error registering admin socket command: " | |
530 | << cpp_strerror(-ret) << dendl; | |
531 | } | |
532 | ret = admin_socket->register_command("kick_stale_sessions", | |
533 | "kick_stale_sessions", | |
534 | &m_command_hook, | |
535 | "kick sessions that were remote reset"); | |
536 | if (ret < 0) { | |
537 | lderr(cct) << "error registering admin socket command: " | |
538 | << cpp_strerror(-ret) << dendl; | |
539 | } | |
540 | ret = admin_socket->register_command("status", | |
541 | "status", | |
542 | &m_command_hook, | |
543 | "show overall client status"); | |
544 | if (ret < 0) { | |
545 | lderr(cct) << "error registering admin socket command: " | |
546 | << cpp_strerror(-ret) << dendl; | |
547 | } | |
548 | ||
549 | client_lock.Lock(); | |
550 | initialized = true; | |
551 | client_lock.Unlock(); | |
552 | } | |
553 | ||
554 | void Client::shutdown() | |
555 | { | |
11fdf7f2 | 556 | ldout(cct, 1) << __func__ << dendl; |
7c673cae FG |
557 | |
558 | // If we were not mounted, but were being used for sending | |
559 | // MDS commands, we may have sessions that need closing. | |
560 | client_lock.Lock(); | |
561 | _close_sessions(); | |
562 | client_lock.Unlock(); | |
563 | ||
11fdf7f2 | 564 | cct->_conf.remove_observer(this); |
7c673cae | 565 | |
11fdf7f2 | 566 | cct->get_admin_socket()->unregister_commands(&m_command_hook); |
7c673cae FG |
567 | |
568 | if (ino_invalidate_cb) { | |
569 | ldout(cct, 10) << "shutdown stopping cache invalidator finisher" << dendl; | |
570 | async_ino_invalidator.wait_for_empty(); | |
571 | async_ino_invalidator.stop(); | |
572 | } | |
573 | ||
574 | if (dentry_invalidate_cb) { | |
575 | ldout(cct, 10) << "shutdown stopping dentry invalidator finisher" << dendl; | |
576 | async_dentry_invalidator.wait_for_empty(); | |
577 | async_dentry_invalidator.stop(); | |
578 | } | |
579 | ||
580 | if (switch_interrupt_cb) { | |
581 | ldout(cct, 10) << "shutdown stopping interrupt finisher" << dendl; | |
582 | interrupt_finisher.wait_for_empty(); | |
583 | interrupt_finisher.stop(); | |
584 | } | |
585 | ||
586 | if (remount_cb) { | |
587 | ldout(cct, 10) << "shutdown stopping remount finisher" << dendl; | |
588 | remount_finisher.wait_for_empty(); | |
589 | remount_finisher.stop(); | |
590 | } | |
591 | ||
592 | objectcacher->stop(); // outside of client_lock! this does a join. | |
593 | ||
594 | client_lock.Lock(); | |
11fdf7f2 | 595 | ceph_assert(initialized); |
7c673cae FG |
596 | initialized = false; |
597 | timer.shutdown(); | |
598 | client_lock.Unlock(); | |
599 | ||
600 | objecter_finisher.wait_for_empty(); | |
601 | objecter_finisher.stop(); | |
602 | ||
603 | if (logger) { | |
604 | cct->get_perfcounters_collection()->remove(logger.get()); | |
605 | logger.reset(); | |
606 | } | |
607 | } | |
608 | ||
609 | ||
610 | // =================== | |
611 | // metadata cache stuff | |
612 | ||
613 | void Client::trim_cache(bool trim_kernel_dcache) | |
614 | { | |
181888fb FG |
615 | uint64_t max = cct->_conf->client_cache_size; |
616 | ldout(cct, 20) << "trim_cache size " << lru.lru_get_size() << " max " << max << dendl; | |
7c673cae FG |
617 | unsigned last = 0; |
618 | while (lru.lru_get_size() != last) { | |
619 | last = lru.lru_get_size(); | |
620 | ||
181888fb | 621 | if (!unmounting && lru.lru_get_size() <= max) break; |
7c673cae FG |
622 | |
623 | // trim! | |
31f18b77 | 624 | Dentry *dn = static_cast<Dentry*>(lru.lru_get_next_expire()); |
7c673cae FG |
625 | if (!dn) |
626 | break; // done | |
627 | ||
628 | trim_dentry(dn); | |
629 | } | |
630 | ||
181888fb | 631 | if (trim_kernel_dcache && lru.lru_get_size() > max) |
7c673cae FG |
632 | _invalidate_kernel_dcache(); |
633 | ||
634 | // hose root? | |
635 | if (lru.lru_get_size() == 0 && root && root->get_num_ref() == 0 && inode_map.size() == 1 + root_parents.size()) { | |
636 | ldout(cct, 15) << "trim_cache trimmed root " << root << dendl; | |
637 | delete root; | |
638 | root = 0; | |
639 | root_ancestor = 0; | |
640 | while (!root_parents.empty()) | |
641 | root_parents.erase(root_parents.begin()); | |
642 | inode_map.clear(); | |
643 | _reset_faked_inos(); | |
644 | } | |
645 | } | |
646 | ||
647 | void Client::trim_cache_for_reconnect(MetaSession *s) | |
648 | { | |
649 | mds_rank_t mds = s->mds_num; | |
11fdf7f2 | 650 | ldout(cct, 20) << __func__ << " mds." << mds << dendl; |
7c673cae FG |
651 | |
652 | int trimmed = 0; | |
653 | list<Dentry*> skipped; | |
654 | while (lru.lru_get_size() > 0) { | |
655 | Dentry *dn = static_cast<Dentry*>(lru.lru_expire()); | |
656 | if (!dn) | |
657 | break; | |
658 | ||
659 | if ((dn->inode && dn->inode->caps.count(mds)) || | |
660 | dn->dir->parent_inode->caps.count(mds)) { | |
661 | trim_dentry(dn); | |
662 | trimmed++; | |
663 | } else | |
664 | skipped.push_back(dn); | |
665 | } | |
666 | ||
667 | for(list<Dentry*>::iterator p = skipped.begin(); p != skipped.end(); ++p) | |
668 | lru.lru_insert_mid(*p); | |
669 | ||
11fdf7f2 | 670 | ldout(cct, 20) << __func__ << " mds." << mds |
7c673cae FG |
671 | << " trimmed " << trimmed << " dentries" << dendl; |
672 | ||
673 | if (s->caps.size() > 0) | |
674 | _invalidate_kernel_dcache(); | |
675 | } | |
676 | ||
677 | void Client::trim_dentry(Dentry *dn) | |
678 | { | |
679 | ldout(cct, 15) << "trim_dentry unlinking dn " << dn->name | |
11fdf7f2 TL |
680 | << " in dir " |
681 | << std::hex << dn->dir->parent_inode->ino << std::dec | |
7c673cae FG |
682 | << dendl; |
683 | if (dn->inode) { | |
684 | Inode *diri = dn->dir->parent_inode; | |
685 | diri->dir_release_count++; | |
686 | clear_dir_complete_and_ordered(diri, true); | |
687 | } | |
688 | unlink(dn, false, false); // drop dir, drop dentry | |
689 | } | |
690 | ||
691 | ||
1adf2230 AA |
692 | void Client::update_inode_file_size(Inode *in, int issued, uint64_t size, |
693 | uint64_t truncate_seq, uint64_t truncate_size) | |
7c673cae | 694 | { |
7c673cae FG |
695 | uint64_t prior_size = in->size; |
696 | ||
7c673cae FG |
697 | if (truncate_seq > in->truncate_seq || |
698 | (truncate_seq == in->truncate_seq && size > in->size)) { | |
699 | ldout(cct, 10) << "size " << in->size << " -> " << size << dendl; | |
700 | in->size = size; | |
701 | in->reported_size = size; | |
702 | if (truncate_seq != in->truncate_seq) { | |
703 | ldout(cct, 10) << "truncate_seq " << in->truncate_seq << " -> " | |
704 | << truncate_seq << dendl; | |
705 | in->truncate_seq = truncate_seq; | |
706 | in->oset.truncate_seq = truncate_seq; | |
707 | ||
708 | // truncate cached file data | |
709 | if (prior_size > size) { | |
710 | _invalidate_inode_cache(in, truncate_size, prior_size - truncate_size); | |
711 | } | |
712 | } | |
713 | ||
714 | // truncate inline data | |
715 | if (in->inline_version < CEPH_INLINE_NONE) { | |
716 | uint32_t len = in->inline_data.length(); | |
717 | if (size < len) | |
718 | in->inline_data.splice(size, len - size); | |
719 | } | |
720 | } | |
721 | if (truncate_seq >= in->truncate_seq && | |
722 | in->truncate_size != truncate_size) { | |
723 | if (in->is_file()) { | |
724 | ldout(cct, 10) << "truncate_size " << in->truncate_size << " -> " | |
725 | << truncate_size << dendl; | |
726 | in->truncate_size = truncate_size; | |
727 | in->oset.truncate_size = truncate_size; | |
728 | } else { | |
729 | ldout(cct, 0) << "Hmmm, truncate_seq && truncate_size changed on non-file inode!" << dendl; | |
730 | } | |
731 | } | |
1adf2230 AA |
732 | } |
733 | ||
734 | void Client::update_inode_file_time(Inode *in, int issued, uint64_t time_warp_seq, | |
735 | utime_t ctime, utime_t mtime, utime_t atime) | |
736 | { | |
737 | ldout(cct, 10) << __func__ << " " << *in << " " << ccap_string(issued) | |
738 | << " ctime " << ctime << " mtime " << mtime << dendl; | |
739 | ||
740 | if (time_warp_seq > in->time_warp_seq) | |
741 | ldout(cct, 10) << " mds time_warp_seq " << time_warp_seq | |
742 | << " is higher than local time_warp_seq " | |
743 | << in->time_warp_seq << dendl; | |
744 | ||
745 | int warn = false; | |
7c673cae FG |
746 | // be careful with size, mtime, atime |
747 | if (issued & (CEPH_CAP_FILE_EXCL| | |
748 | CEPH_CAP_FILE_WR| | |
749 | CEPH_CAP_FILE_BUFFER| | |
750 | CEPH_CAP_AUTH_EXCL| | |
751 | CEPH_CAP_XATTR_EXCL)) { | |
752 | ldout(cct, 30) << "Yay have enough caps to look at our times" << dendl; | |
753 | if (ctime > in->ctime) | |
754 | in->ctime = ctime; | |
755 | if (time_warp_seq > in->time_warp_seq) { | |
7c673cae FG |
756 | //the mds updated times, so take those! |
757 | in->mtime = mtime; | |
758 | in->atime = atime; | |
759 | in->time_warp_seq = time_warp_seq; | |
760 | } else if (time_warp_seq == in->time_warp_seq) { | |
761 | //take max times | |
762 | if (mtime > in->mtime) | |
763 | in->mtime = mtime; | |
764 | if (atime > in->atime) | |
765 | in->atime = atime; | |
766 | } else if (issued & CEPH_CAP_FILE_EXCL) { | |
767 | //ignore mds values as we have a higher seq | |
768 | } else warn = true; | |
769 | } else { | |
770 | ldout(cct, 30) << "Don't have enough caps, just taking mds' time values" << dendl; | |
771 | if (time_warp_seq >= in->time_warp_seq) { | |
772 | in->ctime = ctime; | |
773 | in->mtime = mtime; | |
774 | in->atime = atime; | |
775 | in->time_warp_seq = time_warp_seq; | |
776 | } else warn = true; | |
777 | } | |
778 | if (warn) { | |
779 | ldout(cct, 0) << "WARNING: " << *in << " mds time_warp_seq " | |
780 | << time_warp_seq << " is lower than local time_warp_seq " | |
781 | << in->time_warp_seq | |
782 | << dendl; | |
783 | } | |
784 | } | |
785 | ||
786 | void Client::_fragmap_remove_non_leaves(Inode *in) | |
787 | { | |
788 | for (map<frag_t,int>::iterator p = in->fragmap.begin(); p != in->fragmap.end(); ) | |
789 | if (!in->dirfragtree.is_leaf(p->first)) | |
790 | in->fragmap.erase(p++); | |
791 | else | |
792 | ++p; | |
793 | } | |
794 | ||
795 | void Client::_fragmap_remove_stopped_mds(Inode *in, mds_rank_t mds) | |
796 | { | |
797 | for (auto p = in->fragmap.begin(); p != in->fragmap.end(); ) | |
798 | if (p->second == mds) | |
799 | in->fragmap.erase(p++); | |
800 | else | |
801 | ++p; | |
802 | } | |
803 | ||
804 | Inode * Client::add_update_inode(InodeStat *st, utime_t from, | |
805 | MetaSession *session, | |
806 | const UserPerm& request_perms) | |
807 | { | |
808 | Inode *in; | |
809 | bool was_new = false; | |
810 | if (inode_map.count(st->vino)) { | |
811 | in = inode_map[st->vino]; | |
11fdf7f2 | 812 | ldout(cct, 12) << __func__ << " had " << *in << " caps " << ccap_string(st->cap.caps) << dendl; |
7c673cae FG |
813 | } else { |
814 | in = new Inode(this, st->vino, &st->layout); | |
815 | inode_map[st->vino] = in; | |
816 | ||
817 | if (use_faked_inos()) | |
818 | _assign_faked_ino(in); | |
819 | ||
820 | if (!root) { | |
821 | root = in; | |
11fdf7f2 TL |
822 | if (use_faked_inos()) |
823 | _assign_faked_root(root); | |
7c673cae FG |
824 | root_ancestor = in; |
825 | cwd = root; | |
826 | } else if (!mounted) { | |
827 | root_parents[root_ancestor] = in; | |
828 | root_ancestor = in; | |
829 | } | |
830 | ||
831 | // immutable bits | |
832 | in->ino = st->vino.ino; | |
833 | in->snapid = st->vino.snapid; | |
834 | in->mode = st->mode & S_IFMT; | |
835 | was_new = true; | |
836 | } | |
837 | ||
838 | in->rdev = st->rdev; | |
839 | if (in->is_symlink()) | |
840 | in->symlink = st->symlink; | |
841 | ||
7c673cae | 842 | // only update inode if mds info is strictly newer, or it is the same and projected (odd). |
1adf2230 AA |
843 | bool new_version = false; |
844 | if (in->version == 0 || | |
845 | ((st->cap.flags & CEPH_CAP_FLAG_AUTH) && | |
846 | (in->version & ~1) < st->version)) | |
847 | new_version = true; | |
7c673cae | 848 | |
1adf2230 AA |
849 | int issued; |
850 | in->caps_issued(&issued); | |
851 | issued |= in->caps_dirty(); | |
852 | int new_issued = ~issued & (int)st->cap.caps; | |
7c673cae | 853 | |
1adf2230 AA |
854 | if ((new_version || (new_issued & CEPH_CAP_AUTH_SHARED)) && |
855 | !(issued & CEPH_CAP_AUTH_EXCL)) { | |
856 | in->mode = st->mode; | |
857 | in->uid = st->uid; | |
858 | in->gid = st->gid; | |
859 | in->btime = st->btime; | |
81eedcae | 860 | in->snap_btime = st->snap_btime; |
1adf2230 | 861 | } |
7c673cae | 862 | |
1adf2230 AA |
863 | if ((new_version || (new_issued & CEPH_CAP_LINK_SHARED)) && |
864 | !(issued & CEPH_CAP_LINK_EXCL)) { | |
865 | in->nlink = st->nlink; | |
866 | } | |
7c673cae | 867 | |
1adf2230 AA |
868 | if (new_version || (new_issued & CEPH_CAP_ANY_RD)) { |
869 | update_inode_file_time(in, issued, st->time_warp_seq, | |
870 | st->ctime, st->mtime, st->atime); | |
871 | } | |
7c673cae | 872 | |
1adf2230 AA |
873 | if (new_version || |
874 | (new_issued & (CEPH_CAP_ANY_FILE_RD | CEPH_CAP_ANY_FILE_WR))) { | |
7c673cae | 875 | in->layout = st->layout; |
1adf2230 AA |
876 | update_inode_file_size(in, issued, st->size, st->truncate_seq, st->truncate_size); |
877 | } | |
7c673cae | 878 | |
1adf2230 AA |
879 | if (in->is_dir()) { |
880 | if (new_version || (new_issued & CEPH_CAP_FILE_SHARED)) { | |
881 | in->dirstat = st->dirstat; | |
882 | } | |
883 | // dir_layout/rstat/quota are not tracked by capability, update them only if | |
884 | // the inode stat is from auth mds | |
885 | if (new_version || (st->cap.flags & CEPH_CAP_FLAG_AUTH)) { | |
7c673cae FG |
886 | in->dir_layout = st->dir_layout; |
887 | ldout(cct, 20) << " dir hash is " << (int)in->dir_layout.dl_dir_hash << dendl; | |
1adf2230 AA |
888 | in->rstat = st->rstat; |
889 | in->quota = st->quota; | |
11fdf7f2 | 890 | in->dir_pin = st->dir_pin; |
1adf2230 AA |
891 | } |
892 | // move me if/when version reflects fragtree changes. | |
893 | if (in->dirfragtree != st->dirfragtree) { | |
894 | in->dirfragtree = st->dirfragtree; | |
895 | _fragmap_remove_non_leaves(in); | |
7c673cae | 896 | } |
7c673cae FG |
897 | } |
898 | ||
899 | if ((in->xattr_version == 0 || !(issued & CEPH_CAP_XATTR_EXCL)) && | |
900 | st->xattrbl.length() && | |
901 | st->xattr_version > in->xattr_version) { | |
11fdf7f2 TL |
902 | auto p = st->xattrbl.cbegin(); |
903 | decode(in->xattrs, p); | |
7c673cae FG |
904 | in->xattr_version = st->xattr_version; |
905 | } | |
906 | ||
1adf2230 AA |
907 | if (st->inline_version > in->inline_version) { |
908 | in->inline_data = st->inline_data; | |
909 | in->inline_version = st->inline_version; | |
7c673cae FG |
910 | } |
911 | ||
1adf2230 AA |
912 | /* always take a newer change attr */ |
913 | if (st->change_attr > in->change_attr) | |
914 | in->change_attr = st->change_attr; | |
915 | ||
916 | if (st->version > in->version) | |
917 | in->version = st->version; | |
918 | ||
919 | if (was_new) | |
920 | ldout(cct, 12) << __func__ << " adding " << *in << " caps " << ccap_string(st->cap.caps) << dendl; | |
921 | ||
922 | if (!st->cap.caps) | |
923 | return in; // as with readdir returning indoes in different snaprealms (no caps!) | |
924 | ||
7c673cae | 925 | if (in->snapid == CEPH_NOSNAP) { |
a8e16298 TL |
926 | add_update_cap(in, session, st->cap.cap_id, st->cap.caps, st->cap.wanted, |
927 | st->cap.seq, st->cap.mseq, inodeno_t(st->cap.realm), | |
928 | st->cap.flags, request_perms); | |
28e407b8 | 929 | if (in->auth_cap && in->auth_cap->session == session) { |
7c673cae | 930 | in->max_size = st->max_size; |
28e407b8 AA |
931 | in->rstat = st->rstat; |
932 | } | |
7c673cae | 933 | |
1adf2230 AA |
934 | // setting I_COMPLETE needs to happen after adding the cap |
935 | if (in->is_dir() && | |
936 | (st->cap.caps & CEPH_CAP_FILE_SHARED) && | |
937 | (issued & CEPH_CAP_FILE_EXCL) == 0 && | |
938 | in->dirstat.nfiles == 0 && | |
939 | in->dirstat.nsubdirs == 0) { | |
940 | ldout(cct, 10) << " marking (I_COMPLETE|I_DIR_ORDERED) on empty dir " << *in << dendl; | |
941 | in->flags |= I_COMPLETE | I_DIR_ORDERED; | |
942 | if (in->dir) { | |
943 | ldout(cct, 10) << " dir is open on empty dir " << in->ino << " with " | |
944 | << in->dir->dentries.size() << " entries, marking all dentries null" << dendl; | |
945 | in->dir->readdir_cache.clear(); | |
946 | for (const auto& p : in->dir->dentries) { | |
947 | unlink(p.second, true, true); // keep dir, keep dentry | |
948 | } | |
949 | if (in->dir->dentries.empty()) | |
950 | close_dir(in->dir); | |
7c673cae | 951 | } |
7c673cae | 952 | } |
1adf2230 AA |
953 | } else { |
954 | in->snap_caps |= st->cap.caps; | |
7c673cae FG |
955 | } |
956 | ||
957 | return in; | |
958 | } | |
959 | ||
960 | ||
961 | /* | |
962 | * insert_dentry_inode - insert + link a single dentry + inode into the metadata cache. | |
963 | */ | |
964 | Dentry *Client::insert_dentry_inode(Dir *dir, const string& dname, LeaseStat *dlease, | |
965 | Inode *in, utime_t from, MetaSession *session, | |
966 | Dentry *old_dentry) | |
967 | { | |
968 | Dentry *dn = NULL; | |
969 | if (dir->dentries.count(dname)) | |
970 | dn = dir->dentries[dname]; | |
971 | ||
11fdf7f2 | 972 | ldout(cct, 12) << __func__ << " '" << dname << "' vino " << in->vino() |
7c673cae FG |
973 | << " in dir " << dir->parent_inode->vino() << " dn " << dn |
974 | << dendl; | |
975 | ||
976 | if (dn && dn->inode) { | |
977 | if (dn->inode->vino() == in->vino()) { | |
978 | touch_dn(dn); | |
979 | ldout(cct, 12) << " had dentry " << dname | |
980 | << " with correct vino " << dn->inode->vino() | |
981 | << dendl; | |
982 | } else { | |
983 | ldout(cct, 12) << " had dentry " << dname | |
984 | << " with WRONG vino " << dn->inode->vino() | |
985 | << dendl; | |
986 | unlink(dn, true, true); // keep dir, keep dentry | |
987 | } | |
988 | } | |
989 | ||
990 | if (!dn || !dn->inode) { | |
991 | InodeRef tmp_ref(in); | |
992 | if (old_dentry) { | |
993 | if (old_dentry->dir != dir) { | |
994 | Inode *old_diri = old_dentry->dir->parent_inode; | |
995 | old_diri->dir_ordered_count++; | |
996 | clear_dir_complete_and_ordered(old_diri, false); | |
997 | } | |
998 | unlink(old_dentry, dir == old_dentry->dir, false); // drop dentry, keep dir open if its the same dir | |
999 | } | |
1000 | Inode *diri = dir->parent_inode; | |
1001 | diri->dir_ordered_count++; | |
1002 | clear_dir_complete_and_ordered(diri, false); | |
1003 | dn = link(dir, dname, in, dn); | |
1004 | } | |
1005 | ||
1006 | update_dentry_lease(dn, dlease, from, session); | |
1007 | return dn; | |
1008 | } | |
1009 | ||
1010 | void Client::update_dentry_lease(Dentry *dn, LeaseStat *dlease, utime_t from, MetaSession *session) | |
1011 | { | |
1012 | utime_t dttl = from; | |
1013 | dttl += (float)dlease->duration_ms / 1000.0; | |
1014 | ||
11fdf7f2 | 1015 | ceph_assert(dn); |
7c673cae FG |
1016 | |
1017 | if (dlease->mask & CEPH_LOCK_DN) { | |
1018 | if (dttl > dn->lease_ttl) { | |
1019 | ldout(cct, 10) << "got dentry lease on " << dn->name | |
1020 | << " dur " << dlease->duration_ms << "ms ttl " << dttl << dendl; | |
1021 | dn->lease_ttl = dttl; | |
1022 | dn->lease_mds = session->mds_num; | |
1023 | dn->lease_seq = dlease->seq; | |
1024 | dn->lease_gen = session->cap_gen; | |
1025 | } | |
1026 | } | |
1027 | dn->cap_shared_gen = dn->dir->parent_inode->shared_gen; | |
1028 | } | |
1029 | ||
1030 | ||
1031 | /* | |
1032 | * update MDS location cache for a single inode | |
1033 | */ | |
1034 | void Client::update_dir_dist(Inode *in, DirStat *dst) | |
1035 | { | |
1036 | // auth | |
1037 | ldout(cct, 20) << "got dirfrag map for " << in->ino << " frag " << dst->frag << " to mds " << dst->auth << dendl; | |
1038 | if (dst->auth >= 0) { | |
1039 | in->fragmap[dst->frag] = dst->auth; | |
1040 | } else { | |
1041 | in->fragmap.erase(dst->frag); | |
1042 | } | |
1043 | if (!in->dirfragtree.is_leaf(dst->frag)) { | |
1044 | in->dirfragtree.force_to_leaf(cct, dst->frag); | |
1045 | _fragmap_remove_non_leaves(in); | |
1046 | } | |
1047 | ||
1048 | // replicated | |
1049 | in->dir_replicated = !dst->dist.empty(); // FIXME that's just one frag! | |
1050 | ||
1051 | // dist | |
1052 | /* | |
1053 | if (!st->dirfrag_dist.empty()) { // FIXME | |
1054 | set<int> dist = st->dirfrag_dist.begin()->second; | |
1055 | if (dist.empty() && !in->dir_contacts.empty()) | |
1056 | ldout(cct, 9) << "lost dist spec for " << in->ino | |
1057 | << " " << dist << dendl; | |
1058 | if (!dist.empty() && in->dir_contacts.empty()) | |
1059 | ldout(cct, 9) << "got dist spec for " << in->ino | |
1060 | << " " << dist << dendl; | |
1061 | in->dir_contacts = dist; | |
1062 | } | |
1063 | */ | |
1064 | } | |
1065 | ||
1066 | void Client::clear_dir_complete_and_ordered(Inode *diri, bool complete) | |
1067 | { | |
1068 | if (diri->flags & I_COMPLETE) { | |
1069 | if (complete) { | |
1070 | ldout(cct, 10) << " clearing (I_COMPLETE|I_DIR_ORDERED) on " << *diri << dendl; | |
1071 | diri->flags &= ~(I_COMPLETE | I_DIR_ORDERED); | |
1072 | } else { | |
1073 | if (diri->flags & I_DIR_ORDERED) { | |
1074 | ldout(cct, 10) << " clearing I_DIR_ORDERED on " << *diri << dendl; | |
1075 | diri->flags &= ~I_DIR_ORDERED; | |
1076 | } | |
1077 | } | |
1078 | if (diri->dir) | |
1079 | diri->dir->readdir_cache.clear(); | |
1080 | } | |
1081 | } | |
1082 | ||
1083 | /* | |
1084 | * insert results from readdir or lssnap into the metadata cache. | |
1085 | */ | |
1086 | void Client::insert_readdir_results(MetaRequest *request, MetaSession *session, Inode *diri) { | |
1087 | ||
11fdf7f2 | 1088 | auto& reply = request->reply; |
7c673cae | 1089 | ConnectionRef con = request->reply->get_connection(); |
11fdf7f2 TL |
1090 | uint64_t features; |
1091 | if(session->mds_features.test(CEPHFS_FEATURE_REPLY_ENCODING)) { | |
1092 | features = (uint64_t)-1; | |
1093 | } | |
1094 | else { | |
1095 | features = con->get_features(); | |
1096 | } | |
7c673cae FG |
1097 | |
1098 | dir_result_t *dirp = request->dirp; | |
11fdf7f2 | 1099 | ceph_assert(dirp); |
7c673cae FG |
1100 | |
1101 | // the extra buffer list is only set for readdir and lssnap replies | |
11fdf7f2 | 1102 | auto p = reply->get_extra_bl().cbegin(); |
7c673cae FG |
1103 | if (!p.end()) { |
1104 | // snapdir? | |
1105 | if (request->head.op == CEPH_MDS_OP_LSSNAP) { | |
11fdf7f2 | 1106 | ceph_assert(diri); |
7c673cae FG |
1107 | diri = open_snapdir(diri); |
1108 | } | |
1109 | ||
1110 | // only open dir if we're actually adding stuff to it! | |
1111 | Dir *dir = diri->open_dir(); | |
11fdf7f2 | 1112 | ceph_assert(dir); |
7c673cae FG |
1113 | |
1114 | // dirstat | |
11fdf7f2 | 1115 | DirStat dst(p, features); |
7c673cae FG |
1116 | __u32 numdn; |
1117 | __u16 flags; | |
11fdf7f2 TL |
1118 | decode(numdn, p); |
1119 | decode(flags, p); | |
7c673cae FG |
1120 | |
1121 | bool end = ((unsigned)flags & CEPH_READDIR_FRAG_END); | |
1122 | bool hash_order = ((unsigned)flags & CEPH_READDIR_HASH_ORDER); | |
1123 | ||
1124 | frag_t fg = (unsigned)request->head.args.readdir.frag; | |
1125 | unsigned readdir_offset = dirp->next_offset; | |
1126 | string readdir_start = dirp->last_name; | |
11fdf7f2 | 1127 | ceph_assert(!readdir_start.empty() || readdir_offset == 2); |
7c673cae FG |
1128 | |
1129 | unsigned last_hash = 0; | |
1130 | if (hash_order) { | |
1131 | if (!readdir_start.empty()) { | |
1132 | last_hash = ceph_frag_value(diri->hash_dentry_name(readdir_start)); | |
1133 | } else if (flags & CEPH_READDIR_OFFSET_HASH) { | |
1134 | /* mds understands offset_hash */ | |
1135 | last_hash = (unsigned)request->head.args.readdir.offset_hash; | |
1136 | } | |
1137 | } | |
1138 | ||
1139 | if (fg != dst.frag) { | |
1140 | ldout(cct, 10) << "insert_trace got new frag " << fg << " -> " << dst.frag << dendl; | |
1141 | fg = dst.frag; | |
1142 | if (!hash_order) { | |
1143 | readdir_offset = 2; | |
1144 | readdir_start.clear(); | |
1145 | dirp->offset = dir_result_t::make_fpos(fg, readdir_offset, false); | |
1146 | } | |
1147 | } | |
1148 | ||
1149 | ldout(cct, 10) << __func__ << " " << numdn << " readdir items, end=" << end | |
1150 | << ", hash_order=" << hash_order | |
1151 | << ", readdir_start " << readdir_start | |
1152 | << ", last_hash " << last_hash | |
1153 | << ", next_offset " << readdir_offset << dendl; | |
1154 | ||
1155 | if (diri->snapid != CEPH_SNAPDIR && | |
1156 | fg.is_leftmost() && readdir_offset == 2 && | |
1157 | !(hash_order && last_hash)) { | |
1158 | dirp->release_count = diri->dir_release_count; | |
1159 | dirp->ordered_count = diri->dir_ordered_count; | |
1160 | dirp->start_shared_gen = diri->shared_gen; | |
1161 | dirp->cache_index = 0; | |
1162 | } | |
1163 | ||
1164 | dirp->buffer_frag = fg; | |
1165 | ||
1166 | _readdir_drop_dirp_buffer(dirp); | |
1167 | dirp->buffer.reserve(numdn); | |
1168 | ||
1169 | string dname; | |
1170 | LeaseStat dlease; | |
1171 | for (unsigned i=0; i<numdn; i++) { | |
11fdf7f2 TL |
1172 | decode(dname, p); |
1173 | dlease.decode(p, features); | |
7c673cae FG |
1174 | InodeStat ist(p, features); |
1175 | ||
1176 | ldout(cct, 15) << "" << i << ": '" << dname << "'" << dendl; | |
1177 | ||
1178 | Inode *in = add_update_inode(&ist, request->sent_stamp, session, | |
1179 | request->perms); | |
1180 | Dentry *dn; | |
1181 | if (diri->dir->dentries.count(dname)) { | |
1182 | Dentry *olddn = diri->dir->dentries[dname]; | |
1183 | if (olddn->inode != in) { | |
1184 | // replace incorrect dentry | |
1185 | unlink(olddn, true, true); // keep dir, dentry | |
1186 | dn = link(dir, dname, in, olddn); | |
11fdf7f2 | 1187 | ceph_assert(dn == olddn); |
7c673cae FG |
1188 | } else { |
1189 | // keep existing dn | |
1190 | dn = olddn; | |
1191 | touch_dn(dn); | |
1192 | } | |
1193 | } else { | |
1194 | // new dn | |
1195 | dn = link(dir, dname, in, NULL); | |
1196 | } | |
1197 | ||
1198 | update_dentry_lease(dn, &dlease, request->sent_stamp, session); | |
1199 | if (hash_order) { | |
1200 | unsigned hash = ceph_frag_value(diri->hash_dentry_name(dname)); | |
1201 | if (hash != last_hash) | |
1202 | readdir_offset = 2; | |
1203 | last_hash = hash; | |
1204 | dn->offset = dir_result_t::make_fpos(hash, readdir_offset++, true); | |
1205 | } else { | |
1206 | dn->offset = dir_result_t::make_fpos(fg, readdir_offset++, false); | |
1207 | } | |
1208 | // add to readdir cache | |
1209 | if (dirp->release_count == diri->dir_release_count && | |
1210 | dirp->ordered_count == diri->dir_ordered_count && | |
1211 | dirp->start_shared_gen == diri->shared_gen) { | |
1212 | if (dirp->cache_index == dir->readdir_cache.size()) { | |
1213 | if (i == 0) { | |
11fdf7f2 | 1214 | ceph_assert(!dirp->inode->is_complete_and_ordered()); |
7c673cae FG |
1215 | dir->readdir_cache.reserve(dirp->cache_index + numdn); |
1216 | } | |
1217 | dir->readdir_cache.push_back(dn); | |
1218 | } else if (dirp->cache_index < dir->readdir_cache.size()) { | |
1219 | if (dirp->inode->is_complete_and_ordered()) | |
11fdf7f2 | 1220 | ceph_assert(dir->readdir_cache[dirp->cache_index] == dn); |
7c673cae FG |
1221 | else |
1222 | dir->readdir_cache[dirp->cache_index] = dn; | |
1223 | } else { | |
11fdf7f2 | 1224 | ceph_abort_msg("unexpected readdir buffer idx"); |
7c673cae FG |
1225 | } |
1226 | dirp->cache_index++; | |
1227 | } | |
1228 | // add to cached result list | |
1229 | dirp->buffer.push_back(dir_result_t::dentry(dn->offset, dname, in)); | |
1230 | ldout(cct, 15) << __func__ << " " << hex << dn->offset << dec << ": '" << dname << "' -> " << in->ino << dendl; | |
1231 | } | |
1232 | ||
1233 | if (numdn > 0) | |
1234 | dirp->last_name = dname; | |
1235 | if (end) | |
1236 | dirp->next_offset = 2; | |
1237 | else | |
1238 | dirp->next_offset = readdir_offset; | |
1239 | ||
1240 | if (dir->is_empty()) | |
1241 | close_dir(dir); | |
1242 | } | |
1243 | } | |
1244 | ||
1245 | /** insert_trace | |
1246 | * | |
1247 | * insert a trace from a MDS reply into the cache. | |
1248 | */ | |
1249 | Inode* Client::insert_trace(MetaRequest *request, MetaSession *session) | |
1250 | { | |
11fdf7f2 | 1251 | auto& reply = request->reply; |
7c673cae FG |
1252 | int op = request->get_op(); |
1253 | ||
1254 | ldout(cct, 10) << "insert_trace from " << request->sent_stamp << " mds." << session->mds_num | |
1255 | << " is_target=" << (int)reply->head.is_target | |
1256 | << " is_dentry=" << (int)reply->head.is_dentry | |
1257 | << dendl; | |
1258 | ||
11fdf7f2 | 1259 | auto p = reply->get_trace_bl().cbegin(); |
7c673cae FG |
1260 | if (request->got_unsafe) { |
1261 | ldout(cct, 10) << "insert_trace -- already got unsafe; ignoring" << dendl; | |
11fdf7f2 | 1262 | ceph_assert(p.end()); |
7c673cae FG |
1263 | return NULL; |
1264 | } | |
1265 | ||
1266 | if (p.end()) { | |
1267 | ldout(cct, 10) << "insert_trace -- no trace" << dendl; | |
1268 | ||
1269 | Dentry *d = request->dentry(); | |
1270 | if (d) { | |
1271 | Inode *diri = d->dir->parent_inode; | |
1272 | diri->dir_release_count++; | |
1273 | clear_dir_complete_and_ordered(diri, true); | |
1274 | } | |
1275 | ||
1276 | if (d && reply->get_result() == 0) { | |
1277 | if (op == CEPH_MDS_OP_RENAME) { | |
1278 | // rename | |
1279 | Dentry *od = request->old_dentry(); | |
1280 | ldout(cct, 10) << " unlinking rename src dn " << od << " for traceless reply" << dendl; | |
11fdf7f2 | 1281 | ceph_assert(od); |
7c673cae FG |
1282 | unlink(od, true, true); // keep dir, dentry |
1283 | } else if (op == CEPH_MDS_OP_RMDIR || | |
1284 | op == CEPH_MDS_OP_UNLINK) { | |
1285 | // unlink, rmdir | |
1286 | ldout(cct, 10) << " unlinking unlink/rmdir dn " << d << " for traceless reply" << dendl; | |
1287 | unlink(d, true, true); // keep dir, dentry | |
1288 | } | |
1289 | } | |
1290 | return NULL; | |
1291 | } | |
1292 | ||
1293 | ConnectionRef con = request->reply->get_connection(); | |
11fdf7f2 TL |
1294 | uint64_t features; |
1295 | if (session->mds_features.test(CEPHFS_FEATURE_REPLY_ENCODING)) { | |
1296 | features = (uint64_t)-1; | |
1297 | } | |
1298 | else { | |
1299 | features = con->get_features(); | |
1300 | } | |
7c673cae FG |
1301 | ldout(cct, 10) << " features 0x" << hex << features << dec << dendl; |
1302 | ||
1303 | // snap trace | |
1304 | SnapRealm *realm = NULL; | |
1305 | if (reply->snapbl.length()) | |
1306 | update_snap_trace(reply->snapbl, &realm); | |
1307 | ||
1308 | ldout(cct, 10) << " hrm " | |
1309 | << " is_target=" << (int)reply->head.is_target | |
1310 | << " is_dentry=" << (int)reply->head.is_dentry | |
1311 | << dendl; | |
1312 | ||
1313 | InodeStat dirst; | |
1314 | DirStat dst; | |
1315 | string dname; | |
1316 | LeaseStat dlease; | |
1317 | InodeStat ist; | |
1318 | ||
1319 | if (reply->head.is_dentry) { | |
1320 | dirst.decode(p, features); | |
11fdf7f2 TL |
1321 | dst.decode(p, features); |
1322 | decode(dname, p); | |
1323 | dlease.decode(p, features); | |
7c673cae FG |
1324 | } |
1325 | ||
1326 | Inode *in = 0; | |
1327 | if (reply->head.is_target) { | |
1328 | ist.decode(p, features); | |
1329 | if (cct->_conf->client_debug_getattr_caps) { | |
1330 | unsigned wanted = 0; | |
1331 | if (op == CEPH_MDS_OP_GETATTR || op == CEPH_MDS_OP_LOOKUP) | |
1332 | wanted = request->head.args.getattr.mask; | |
1333 | else if (op == CEPH_MDS_OP_OPEN || op == CEPH_MDS_OP_CREATE) | |
1334 | wanted = request->head.args.open.mask; | |
1335 | ||
1336 | if ((wanted & CEPH_CAP_XATTR_SHARED) && | |
1337 | !(ist.xattr_version > 0 && ist.xattrbl.length() > 0)) | |
11fdf7f2 | 1338 | ceph_abort_msg("MDS reply does not contain xattrs"); |
7c673cae FG |
1339 | } |
1340 | ||
1341 | in = add_update_inode(&ist, request->sent_stamp, session, | |
1342 | request->perms); | |
1343 | } | |
1344 | ||
1345 | Inode *diri = NULL; | |
1346 | if (reply->head.is_dentry) { | |
1347 | diri = add_update_inode(&dirst, request->sent_stamp, session, | |
1348 | request->perms); | |
1349 | update_dir_dist(diri, &dst); // dir stat info is attached to .. | |
1350 | ||
1351 | if (in) { | |
1352 | Dir *dir = diri->open_dir(); | |
1353 | insert_dentry_inode(dir, dname, &dlease, in, request->sent_stamp, session, | |
1354 | (op == CEPH_MDS_OP_RENAME) ? request->old_dentry() : NULL); | |
1355 | } else { | |
1356 | Dentry *dn = NULL; | |
1357 | if (diri->dir && diri->dir->dentries.count(dname)) { | |
1358 | dn = diri->dir->dentries[dname]; | |
1359 | if (dn->inode) { | |
1360 | diri->dir_ordered_count++; | |
1361 | clear_dir_complete_and_ordered(diri, false); | |
1362 | unlink(dn, true, true); // keep dir, dentry | |
1363 | } | |
1364 | } | |
1365 | if (dlease.duration_ms > 0) { | |
1366 | if (!dn) { | |
1367 | Dir *dir = diri->open_dir(); | |
1368 | dn = link(dir, dname, NULL, NULL); | |
1369 | } | |
1370 | update_dentry_lease(dn, &dlease, request->sent_stamp, session); | |
1371 | } | |
1372 | } | |
1373 | } else if (op == CEPH_MDS_OP_LOOKUPSNAP || | |
1374 | op == CEPH_MDS_OP_MKSNAP) { | |
1375 | ldout(cct, 10) << " faking snap lookup weirdness" << dendl; | |
1376 | // fake it for snap lookup | |
1377 | vinodeno_t vino = ist.vino; | |
1378 | vino.snapid = CEPH_SNAPDIR; | |
11fdf7f2 | 1379 | ceph_assert(inode_map.count(vino)); |
7c673cae FG |
1380 | diri = inode_map[vino]; |
1381 | ||
1382 | string dname = request->path.last_dentry(); | |
1383 | ||
1384 | LeaseStat dlease; | |
1385 | dlease.duration_ms = 0; | |
1386 | ||
1387 | if (in) { | |
1388 | Dir *dir = diri->open_dir(); | |
1389 | insert_dentry_inode(dir, dname, &dlease, in, request->sent_stamp, session); | |
1390 | } else { | |
1391 | if (diri->dir && diri->dir->dentries.count(dname)) { | |
1392 | Dentry *dn = diri->dir->dentries[dname]; | |
1393 | if (dn->inode) | |
1394 | unlink(dn, true, true); // keep dir, dentry | |
1395 | } | |
1396 | } | |
1397 | } | |
1398 | ||
1399 | if (in) { | |
1400 | if (op == CEPH_MDS_OP_READDIR || | |
1401 | op == CEPH_MDS_OP_LSSNAP) { | |
1402 | insert_readdir_results(request, session, in); | |
1403 | } else if (op == CEPH_MDS_OP_LOOKUPNAME) { | |
1404 | // hack: return parent inode instead | |
1405 | in = diri; | |
1406 | } | |
1407 | ||
1408 | if (request->dentry() == NULL && in != request->inode()) { | |
1409 | // pin the target inode if its parent dentry is not pinned | |
1410 | request->set_other_inode(in); | |
1411 | } | |
1412 | } | |
1413 | ||
1414 | if (realm) | |
1415 | put_snap_realm(realm); | |
1416 | ||
1417 | request->target = in; | |
1418 | return in; | |
1419 | } | |
1420 | ||
1421 | // ------- | |
1422 | ||
1423 | mds_rank_t Client::choose_target_mds(MetaRequest *req, Inode** phash_diri) | |
1424 | { | |
1425 | mds_rank_t mds = MDS_RANK_NONE; | |
1426 | __u32 hash = 0; | |
1427 | bool is_hash = false; | |
1428 | ||
1429 | Inode *in = NULL; | |
1430 | Dentry *de = NULL; | |
7c673cae FG |
1431 | |
1432 | if (req->resend_mds >= 0) { | |
1433 | mds = req->resend_mds; | |
1434 | req->resend_mds = -1; | |
11fdf7f2 | 1435 | ldout(cct, 10) << __func__ << " resend_mds specified as mds." << mds << dendl; |
7c673cae FG |
1436 | goto out; |
1437 | } | |
1438 | ||
1439 | if (cct->_conf->client_use_random_mds) | |
1440 | goto random_mds; | |
1441 | ||
1442 | in = req->inode(); | |
1443 | de = req->dentry(); | |
1444 | if (in) { | |
11fdf7f2 | 1445 | ldout(cct, 20) << __func__ << " starting with req->inode " << *in << dendl; |
7c673cae FG |
1446 | if (req->path.depth()) { |
1447 | hash = in->hash_dentry_name(req->path[0]); | |
11fdf7f2 | 1448 | ldout(cct, 20) << __func__ << " inode dir hash is " << (int)in->dir_layout.dl_dir_hash |
7c673cae FG |
1449 | << " on " << req->path[0] |
1450 | << " => " << hash << dendl; | |
1451 | is_hash = true; | |
1452 | } | |
1453 | } else if (de) { | |
1454 | if (de->inode) { | |
1455 | in = de->inode.get(); | |
11fdf7f2 | 1456 | ldout(cct, 20) << __func__ << " starting with req->dentry inode " << *in << dendl; |
7c673cae FG |
1457 | } else { |
1458 | in = de->dir->parent_inode; | |
1459 | hash = in->hash_dentry_name(de->name); | |
11fdf7f2 | 1460 | ldout(cct, 20) << __func__ << " dentry dir hash is " << (int)in->dir_layout.dl_dir_hash |
7c673cae FG |
1461 | << " on " << de->name |
1462 | << " => " << hash << dendl; | |
1463 | is_hash = true; | |
1464 | } | |
1465 | } | |
1466 | if (in) { | |
1467 | if (in->snapid != CEPH_NOSNAP) { | |
11fdf7f2 | 1468 | ldout(cct, 10) << __func__ << " " << *in << " is snapped, using nonsnap parent" << dendl; |
7c673cae FG |
1469 | while (in->snapid != CEPH_NOSNAP) { |
1470 | if (in->snapid == CEPH_SNAPDIR) | |
1471 | in = in->snapdir_parent.get(); | |
11fdf7f2 | 1472 | else if (!in->dentries.empty()) |
7c673cae FG |
1473 | /* In most cases there will only be one dentry, so getting it |
1474 | * will be the correct action. If there are multiple hard links, | |
1475 | * I think the MDS should be able to redirect as needed*/ | |
1476 | in = in->get_first_parent()->dir->parent_inode; | |
1477 | else { | |
1478 | ldout(cct, 10) << "got unlinked inode, can't look at parent" << dendl; | |
1479 | break; | |
1480 | } | |
1481 | } | |
1482 | is_hash = false; | |
1483 | } | |
1484 | ||
11fdf7f2 | 1485 | ldout(cct, 20) << __func__ << " " << *in << " is_hash=" << is_hash |
7c673cae FG |
1486 | << " hash=" << hash << dendl; |
1487 | ||
1488 | if (is_hash && S_ISDIR(in->mode) && !in->fragmap.empty()) { | |
1489 | frag_t fg = in->dirfragtree[hash]; | |
1490 | if (in->fragmap.count(fg)) { | |
1491 | mds = in->fragmap[fg]; | |
1492 | if (phash_diri) | |
1493 | *phash_diri = in; | |
91327a77 AA |
1494 | } else if (in->auth_cap) { |
1495 | mds = in->auth_cap->session->mds_num; | |
1496 | } | |
1497 | if (mds >= 0) { | |
11fdf7f2 | 1498 | ldout(cct, 10) << __func__ << " from dirfragtree hash" << dendl; |
7c673cae FG |
1499 | goto out; |
1500 | } | |
1501 | } | |
1502 | ||
11fdf7f2 TL |
1503 | if (in->auth_cap && req->auth_is_best()) { |
1504 | mds = in->auth_cap->session->mds_num; | |
1505 | } else if (!in->caps.empty()) { | |
1506 | mds = in->caps.begin()->second.session->mds_num; | |
1507 | } else { | |
7c673cae | 1508 | goto random_mds; |
11fdf7f2 TL |
1509 | } |
1510 | ldout(cct, 10) << __func__ << " from caps on inode " << *in << dendl; | |
7c673cae FG |
1511 | |
1512 | goto out; | |
1513 | } | |
1514 | ||
1515 | random_mds: | |
1516 | if (mds < 0) { | |
1517 | mds = _get_random_up_mds(); | |
1518 | ldout(cct, 10) << "did not get mds through better means, so chose random mds " << mds << dendl; | |
1519 | } | |
1520 | ||
1521 | out: | |
1522 | ldout(cct, 20) << "mds is " << mds << dendl; | |
1523 | return mds; | |
1524 | } | |
1525 | ||
1526 | ||
1527 | void Client::connect_mds_targets(mds_rank_t mds) | |
1528 | { | |
11fdf7f2 TL |
1529 | ldout(cct, 10) << __func__ << " for mds." << mds << dendl; |
1530 | ceph_assert(mds_sessions.count(mds)); | |
7c673cae FG |
1531 | const MDSMap::mds_info_t& info = mdsmap->get_mds_info(mds); |
1532 | for (set<mds_rank_t>::const_iterator q = info.export_targets.begin(); | |
1533 | q != info.export_targets.end(); | |
1534 | ++q) { | |
1535 | if (mds_sessions.count(*q) == 0 && | |
1536 | mdsmap->is_clientreplay_or_active_or_stopping(*q)) { | |
1537 | ldout(cct, 10) << "check_mds_sessions opening mds." << mds | |
1538 | << " export target mds." << *q << dendl; | |
1539 | _open_mds_session(*q); | |
1540 | } | |
1541 | } | |
1542 | } | |
1543 | ||
1544 | void Client::dump_mds_sessions(Formatter *f) | |
1545 | { | |
1546 | f->dump_int("id", get_nodeid().v); | |
11fdf7f2 | 1547 | entity_inst_t inst(messenger->get_myname(), messenger->get_myaddr_legacy()); |
1adf2230 AA |
1548 | f->dump_object("inst", inst); |
1549 | f->dump_stream("inst_str") << inst; | |
1550 | f->dump_stream("addr_str") << inst.addr; | |
7c673cae | 1551 | f->open_array_section("sessions"); |
11fdf7f2 | 1552 | for (const auto &p : mds_sessions) { |
7c673cae | 1553 | f->open_object_section("session"); |
11fdf7f2 | 1554 | p.second.dump(f); |
7c673cae FG |
1555 | f->close_section(); |
1556 | } | |
1557 | f->close_section(); | |
1558 | f->dump_int("mdsmap_epoch", mdsmap->get_epoch()); | |
1559 | } | |
1560 | void Client::dump_mds_requests(Formatter *f) | |
1561 | { | |
1562 | for (map<ceph_tid_t, MetaRequest*>::iterator p = mds_requests.begin(); | |
1563 | p != mds_requests.end(); | |
1564 | ++p) { | |
1565 | f->open_object_section("request"); | |
1566 | p->second->dump(f); | |
1567 | f->close_section(); | |
1568 | } | |
1569 | } | |
1570 | ||
1571 | int Client::verify_reply_trace(int r, | |
11fdf7f2 | 1572 | MetaRequest *request, const MConstRef<MClientReply>& reply, |
7c673cae FG |
1573 | InodeRef *ptarget, bool *pcreated, |
1574 | const UserPerm& perms) | |
1575 | { | |
1576 | // check whether this request actually did the create, and set created flag | |
1577 | bufferlist extra_bl; | |
1578 | inodeno_t created_ino; | |
1579 | bool got_created_ino = false; | |
1580 | ceph::unordered_map<vinodeno_t, Inode*>::iterator p; | |
1581 | ||
11fdf7f2 | 1582 | extra_bl = reply->get_extra_bl(); |
7c673cae FG |
1583 | if (extra_bl.length() >= 8) { |
1584 | // if the extra bufferlist has a buffer, we assume its the created inode | |
1585 | // and that this request to create succeeded in actually creating | |
1586 | // the inode (won the race with other create requests) | |
11fdf7f2 | 1587 | decode(created_ino, extra_bl); |
7c673cae FG |
1588 | got_created_ino = true; |
1589 | ldout(cct, 10) << "make_request created ino " << created_ino << dendl; | |
1590 | } | |
1591 | ||
1592 | if (pcreated) | |
1593 | *pcreated = got_created_ino; | |
1594 | ||
1595 | if (request->target) { | |
1596 | *ptarget = request->target; | |
1597 | ldout(cct, 20) << "make_request target is " << *ptarget->get() << dendl; | |
1598 | } else { | |
1599 | if (got_created_ino && (p = inode_map.find(vinodeno_t(created_ino, CEPH_NOSNAP))) != inode_map.end()) { | |
1600 | (*ptarget) = p->second; | |
1601 | ldout(cct, 20) << "make_request created, target is " << *ptarget->get() << dendl; | |
1602 | } else { | |
1603 | // we got a traceless reply, and need to look up what we just | |
1604 | // created. for now, do this by name. someday, do this by the | |
1605 | // ino... which we know! FIXME. | |
1606 | InodeRef target; | |
1607 | Dentry *d = request->dentry(); | |
1608 | if (d) { | |
1609 | if (d->dir) { | |
1610 | ldout(cct, 10) << "make_request got traceless reply, looking up #" | |
1611 | << d->dir->parent_inode->ino << "/" << d->name | |
1612 | << " got_ino " << got_created_ino | |
1613 | << " ino " << created_ino | |
1614 | << dendl; | |
1615 | r = _do_lookup(d->dir->parent_inode, d->name, request->regetattr_mask, | |
1616 | &target, perms); | |
1617 | } else { | |
1618 | // if the dentry is not linked, just do our best. see #5021. | |
11fdf7f2 | 1619 | ceph_abort_msg("how did this happen? i want logs!"); |
7c673cae FG |
1620 | } |
1621 | } else { | |
1622 | Inode *in = request->inode(); | |
1623 | ldout(cct, 10) << "make_request got traceless reply, forcing getattr on #" | |
1624 | << in->ino << dendl; | |
1625 | r = _getattr(in, request->regetattr_mask, perms, true); | |
1626 | target = in; | |
1627 | } | |
1628 | if (r >= 0) { | |
1629 | // verify ino returned in reply and trace_dist are the same | |
1630 | if (got_created_ino && | |
1631 | created_ino.val != target->ino.val) { | |
1632 | ldout(cct, 5) << "create got ino " << created_ino << " but then failed on lookup; EINTR?" << dendl; | |
1633 | r = -EINTR; | |
1634 | } | |
1635 | if (ptarget) | |
1636 | ptarget->swap(target); | |
1637 | } | |
1638 | } | |
1639 | } | |
1640 | ||
1641 | return r; | |
1642 | } | |
1643 | ||
1644 | ||
1645 | /** | |
1646 | * make a request | |
1647 | * | |
1648 | * Blocking helper to make an MDS request. | |
1649 | * | |
1650 | * If the ptarget flag is set, behavior changes slightly: the caller | |
1651 | * expects to get a pointer to the inode we are creating or operating | |
1652 | * on. As a result, we will follow up any traceless mutation reply | |
1653 | * with a getattr or lookup to transparently handle a traceless reply | |
1654 | * from the MDS (as when the MDS restarts and the client has to replay | |
1655 | * a request). | |
1656 | * | |
1657 | * @param request the MetaRequest to execute | |
1658 | * @param perms The user uid/gid to execute as (eventually, full group lists?) | |
1659 | * @param ptarget [optional] address to store a pointer to the target inode we want to create or operate on | |
1660 | * @param pcreated [optional; required if ptarget] where to store a bool of whether our create atomically created a file | |
1661 | * @param use_mds [optional] prefer a specific mds (-1 for default) | |
1662 | * @param pdirbl [optional; disallowed if ptarget] where to pass extra reply payload to the caller | |
1663 | */ | |
1664 | int Client::make_request(MetaRequest *request, | |
1665 | const UserPerm& perms, | |
1666 | InodeRef *ptarget, bool *pcreated, | |
1667 | mds_rank_t use_mds, | |
1668 | bufferlist *pdirbl) | |
1669 | { | |
1670 | int r = 0; | |
1671 | ||
1672 | // assign a unique tid | |
1673 | ceph_tid_t tid = ++last_tid; | |
1674 | request->set_tid(tid); | |
1675 | ||
1676 | // and timestamp | |
1677 | request->op_stamp = ceph_clock_now(); | |
1678 | ||
1679 | // make note | |
1680 | mds_requests[tid] = request->get(); | |
1681 | if (oldest_tid == 0 && request->get_op() != CEPH_MDS_OP_SETFILELOCK) | |
1682 | oldest_tid = tid; | |
1683 | ||
1684 | request->set_caller_perms(perms); | |
1685 | ||
1686 | if (cct->_conf->client_inject_fixed_oldest_tid) { | |
1687 | ldout(cct, 20) << __func__ << " injecting fixed oldest_client_tid(1)" << dendl; | |
1688 | request->set_oldest_client_tid(1); | |
1689 | } else { | |
1690 | request->set_oldest_client_tid(oldest_tid); | |
1691 | } | |
1692 | ||
1693 | // hack target mds? | |
1694 | if (use_mds >= 0) | |
1695 | request->resend_mds = use_mds; | |
1696 | ||
1697 | while (1) { | |
1698 | if (request->aborted()) | |
1699 | break; | |
1700 | ||
31f18b77 FG |
1701 | if (blacklisted) { |
1702 | request->abort(-EBLACKLISTED); | |
1703 | break; | |
1704 | } | |
1705 | ||
7c673cae FG |
1706 | // set up wait cond |
1707 | Cond caller_cond; | |
1708 | request->caller_cond = &caller_cond; | |
1709 | ||
1710 | // choose mds | |
1711 | Inode *hash_diri = NULL; | |
1712 | mds_rank_t mds = choose_target_mds(request, &hash_diri); | |
1713 | int mds_state = (mds == MDS_RANK_NONE) ? MDSMap::STATE_NULL : mdsmap->get_state(mds); | |
1714 | if (mds_state != MDSMap::STATE_ACTIVE && mds_state != MDSMap::STATE_STOPPING) { | |
1715 | if (mds_state == MDSMap::STATE_NULL && mds >= mdsmap->get_max_mds()) { | |
1716 | if (hash_diri) { | |
1717 | ldout(cct, 10) << " target mds." << mds << " has stopped, remove it from fragmap" << dendl; | |
1718 | _fragmap_remove_stopped_mds(hash_diri, mds); | |
1719 | } else { | |
1720 | ldout(cct, 10) << " target mds." << mds << " has stopped, trying a random mds" << dendl; | |
1721 | request->resend_mds = _get_random_up_mds(); | |
1722 | } | |
1723 | } else { | |
1724 | ldout(cct, 10) << " target mds." << mds << " not active, waiting for new mdsmap" << dendl; | |
1725 | wait_on_list(waiting_for_mdsmap); | |
1726 | } | |
1727 | continue; | |
1728 | } | |
1729 | ||
1730 | // open a session? | |
1731 | MetaSession *session = NULL; | |
1732 | if (!have_open_session(mds)) { | |
1733 | session = _get_or_open_mds_session(mds); | |
1734 | ||
1735 | // wait | |
1736 | if (session->state == MetaSession::STATE_OPENING) { | |
1737 | ldout(cct, 10) << "waiting for session to mds." << mds << " to open" << dendl; | |
1738 | wait_on_context_list(session->waiting_for_open); | |
1739 | // Abort requests on REJECT from MDS | |
1740 | if (rejected_by_mds.count(mds)) { | |
1741 | request->abort(-EPERM); | |
1742 | break; | |
1743 | } | |
1744 | continue; | |
1745 | } | |
1746 | ||
1747 | if (!have_open_session(mds)) | |
1748 | continue; | |
1749 | } else { | |
11fdf7f2 | 1750 | session = &mds_sessions.at(mds); |
7c673cae FG |
1751 | } |
1752 | ||
1753 | // send request. | |
1754 | send_request(request, session); | |
1755 | ||
1756 | // wait for signal | |
1757 | ldout(cct, 20) << "awaiting reply|forward|kick on " << &caller_cond << dendl; | |
1758 | request->kick = false; | |
1759 | while (!request->reply && // reply | |
1760 | request->resend_mds < 0 && // forward | |
1761 | !request->kick) | |
1762 | caller_cond.Wait(client_lock); | |
1763 | request->caller_cond = NULL; | |
1764 | ||
1765 | // did we get a reply? | |
1766 | if (request->reply) | |
1767 | break; | |
1768 | } | |
1769 | ||
1770 | if (!request->reply) { | |
11fdf7f2 TL |
1771 | ceph_assert(request->aborted()); |
1772 | ceph_assert(!request->got_unsafe); | |
7c673cae FG |
1773 | r = request->get_abort_code(); |
1774 | request->item.remove_myself(); | |
1775 | unregister_request(request); | |
11fdf7f2 | 1776 | put_request(request); |
7c673cae FG |
1777 | return r; |
1778 | } | |
1779 | ||
1780 | // got it! | |
11fdf7f2 | 1781 | auto reply = std::move(request->reply); |
7c673cae FG |
1782 | r = reply->get_result(); |
1783 | if (r >= 0) | |
1784 | request->success = true; | |
1785 | ||
1786 | // kick dispatcher (we've got it!) | |
11fdf7f2 | 1787 | ceph_assert(request->dispatch_cond); |
7c673cae FG |
1788 | request->dispatch_cond->Signal(); |
1789 | ldout(cct, 20) << "sendrecv kickback on tid " << tid << " " << request->dispatch_cond << dendl; | |
1790 | request->dispatch_cond = 0; | |
1791 | ||
1792 | if (r >= 0 && ptarget) | |
1793 | r = verify_reply_trace(r, request, reply, ptarget, pcreated, perms); | |
1794 | ||
1795 | if (pdirbl) | |
11fdf7f2 | 1796 | *pdirbl = reply->get_extra_bl(); |
7c673cae FG |
1797 | |
1798 | // -- log times -- | |
1799 | utime_t lat = ceph_clock_now(); | |
1800 | lat -= request->sent_stamp; | |
1801 | ldout(cct, 20) << "lat " << lat << dendl; | |
1802 | logger->tinc(l_c_lat, lat); | |
1803 | logger->tinc(l_c_reply, lat); | |
1804 | ||
1805 | put_request(request); | |
7c673cae FG |
1806 | return r; |
1807 | } | |
1808 | ||
1809 | void Client::unregister_request(MetaRequest *req) | |
1810 | { | |
1811 | mds_requests.erase(req->tid); | |
1812 | if (req->tid == oldest_tid) { | |
1813 | map<ceph_tid_t, MetaRequest*>::iterator p = mds_requests.upper_bound(oldest_tid); | |
1814 | while (true) { | |
1815 | if (p == mds_requests.end()) { | |
1816 | oldest_tid = 0; | |
1817 | break; | |
1818 | } | |
1819 | if (p->second->get_op() != CEPH_MDS_OP_SETFILELOCK) { | |
1820 | oldest_tid = p->first; | |
1821 | break; | |
1822 | } | |
1823 | ++p; | |
1824 | } | |
1825 | } | |
1826 | put_request(req); | |
1827 | } | |
1828 | ||
1829 | void Client::put_request(MetaRequest *request) | |
1830 | { | |
1831 | if (request->_put()) { | |
1832 | int op = -1; | |
1833 | if (request->success) | |
1834 | op = request->get_op(); | |
1835 | InodeRef other_in; | |
1836 | request->take_other_inode(&other_in); | |
1837 | delete request; | |
1838 | ||
1839 | if (other_in && | |
1840 | (op == CEPH_MDS_OP_RMDIR || | |
1841 | op == CEPH_MDS_OP_RENAME || | |
1842 | op == CEPH_MDS_OP_RMSNAP)) { | |
1843 | _try_to_trim_inode(other_in.get(), false); | |
1844 | } | |
1845 | } | |
1846 | } | |
1847 | ||
1848 | int Client::encode_inode_release(Inode *in, MetaRequest *req, | |
1849 | mds_rank_t mds, int drop, | |
1850 | int unless, int force) | |
1851 | { | |
11fdf7f2 | 1852 | ldout(cct, 20) << __func__ << " enter(in:" << *in << ", req:" << req |
7c673cae FG |
1853 | << " mds:" << mds << ", drop:" << drop << ", unless:" << unless |
1854 | << ", have:" << ", force:" << force << ")" << dendl; | |
1855 | int released = 0; | |
11fdf7f2 TL |
1856 | auto it = in->caps.find(mds); |
1857 | if (it != in->caps.end()) { | |
1858 | Cap &cap = it->second; | |
7c673cae | 1859 | drop &= ~(in->dirty_caps | get_caps_used(in)); |
11fdf7f2 TL |
1860 | if ((drop & cap.issued) && |
1861 | !(unless & cap.issued)) { | |
1862 | ldout(cct, 25) << "Dropping caps. Initial " << ccap_string(cap.issued) << dendl; | |
1863 | cap.issued &= ~drop; | |
1864 | cap.implemented &= ~drop; | |
7c673cae | 1865 | released = 1; |
11fdf7f2 | 1866 | ldout(cct, 25) << "Now have: " << ccap_string(cap.issued) << dendl; |
7c673cae FG |
1867 | } else { |
1868 | released = force; | |
1869 | } | |
1870 | if (released) { | |
1871 | ceph_mds_request_release rel; | |
1872 | rel.ino = in->ino; | |
11fdf7f2 TL |
1873 | rel.cap_id = cap.cap_id; |
1874 | rel.seq = cap.seq; | |
1875 | rel.issue_seq = cap.issue_seq; | |
1876 | rel.mseq = cap.mseq; | |
1877 | rel.caps = cap.implemented; | |
1878 | rel.wanted = cap.wanted; | |
7c673cae FG |
1879 | rel.dname_len = 0; |
1880 | rel.dname_seq = 0; | |
1881 | req->cap_releases.push_back(MClientRequest::Release(rel,"")); | |
1882 | } | |
1883 | } | |
11fdf7f2 | 1884 | ldout(cct, 25) << __func__ << " exit(in:" << *in << ") released:" |
7c673cae FG |
1885 | << released << dendl; |
1886 | return released; | |
1887 | } | |
1888 | ||
1889 | void Client::encode_dentry_release(Dentry *dn, MetaRequest *req, | |
1890 | mds_rank_t mds, int drop, int unless) | |
1891 | { | |
11fdf7f2 | 1892 | ldout(cct, 20) << __func__ << " enter(dn:" |
7c673cae FG |
1893 | << dn << ")" << dendl; |
1894 | int released = 0; | |
1895 | if (dn->dir) | |
1896 | released = encode_inode_release(dn->dir->parent_inode, req, | |
1897 | mds, drop, unless, 1); | |
1898 | if (released && dn->lease_mds == mds) { | |
1899 | ldout(cct, 25) << "preemptively releasing dn to mds" << dendl; | |
11fdf7f2 | 1900 | auto& rel = req->cap_releases.back(); |
7c673cae FG |
1901 | rel.item.dname_len = dn->name.length(); |
1902 | rel.item.dname_seq = dn->lease_seq; | |
1903 | rel.dname = dn->name; | |
1904 | } | |
11fdf7f2 | 1905 | ldout(cct, 25) << __func__ << " exit(dn:" |
7c673cae FG |
1906 | << dn << ")" << dendl; |
1907 | } | |
1908 | ||
1909 | ||
1910 | /* | |
1911 | * This requires the MClientRequest *request member to be set. | |
1912 | * It will error out horribly without one. | |
1913 | * Additionally, if you set any *drop member, you'd better have | |
1914 | * set the corresponding dentry! | |
1915 | */ | |
1916 | void Client::encode_cap_releases(MetaRequest *req, mds_rank_t mds) | |
1917 | { | |
11fdf7f2 | 1918 | ldout(cct, 20) << __func__ << " enter (req: " |
7c673cae FG |
1919 | << req << ", mds: " << mds << ")" << dendl; |
1920 | if (req->inode_drop && req->inode()) | |
1921 | encode_inode_release(req->inode(), req, | |
1922 | mds, req->inode_drop, | |
1923 | req->inode_unless); | |
1924 | ||
1925 | if (req->old_inode_drop && req->old_inode()) | |
1926 | encode_inode_release(req->old_inode(), req, | |
1927 | mds, req->old_inode_drop, | |
1928 | req->old_inode_unless); | |
1929 | if (req->other_inode_drop && req->other_inode()) | |
1930 | encode_inode_release(req->other_inode(), req, | |
1931 | mds, req->other_inode_drop, | |
1932 | req->other_inode_unless); | |
1933 | ||
1934 | if (req->dentry_drop && req->dentry()) | |
1935 | encode_dentry_release(req->dentry(), req, | |
1936 | mds, req->dentry_drop, | |
1937 | req->dentry_unless); | |
1938 | ||
1939 | if (req->old_dentry_drop && req->old_dentry()) | |
1940 | encode_dentry_release(req->old_dentry(), req, | |
1941 | mds, req->old_dentry_drop, | |
1942 | req->old_dentry_unless); | |
11fdf7f2 | 1943 | ldout(cct, 25) << __func__ << " exit (req: " |
7c673cae FG |
1944 | << req << ", mds " << mds <<dendl; |
1945 | } | |
1946 | ||
1947 | bool Client::have_open_session(mds_rank_t mds) | |
1948 | { | |
11fdf7f2 TL |
1949 | const auto &it = mds_sessions.find(mds); |
1950 | return it != mds_sessions.end() && | |
1951 | (it->second.state == MetaSession::STATE_OPEN || | |
1952 | it->second.state == MetaSession::STATE_STALE); | |
7c673cae FG |
1953 | } |
1954 | ||
1955 | MetaSession *Client::_get_mds_session(mds_rank_t mds, Connection *con) | |
1956 | { | |
11fdf7f2 TL |
1957 | const auto &it = mds_sessions.find(mds); |
1958 | if (it == mds_sessions.end() || it->second.con != con) { | |
7c673cae | 1959 | return NULL; |
11fdf7f2 TL |
1960 | } else { |
1961 | return &it->second; | |
1962 | } | |
7c673cae FG |
1963 | } |
1964 | ||
1965 | MetaSession *Client::_get_or_open_mds_session(mds_rank_t mds) | |
1966 | { | |
11fdf7f2 TL |
1967 | auto it = mds_sessions.find(mds); |
1968 | return it == mds_sessions.end() ? _open_mds_session(mds) : &it->second; | |
7c673cae FG |
1969 | } |
1970 | ||
1971 | /** | |
1972 | * Populate a map of strings with client-identifying metadata, | |
1973 | * such as the hostname. Call this once at initialization. | |
1974 | */ | |
1975 | void Client::populate_metadata(const std::string &mount_root) | |
1976 | { | |
1977 | // Hostname | |
1978 | struct utsname u; | |
1979 | int r = uname(&u); | |
1980 | if (r >= 0) { | |
1981 | metadata["hostname"] = u.nodename; | |
1982 | ldout(cct, 20) << __func__ << " read hostname '" << u.nodename << "'" << dendl; | |
1983 | } else { | |
1984 | ldout(cct, 1) << __func__ << " failed to read hostname (" << cpp_strerror(r) << ")" << dendl; | |
1985 | } | |
1986 | ||
1987 | metadata["pid"] = stringify(getpid()); | |
1988 | ||
1989 | // Ceph entity id (the '0' in "client.0") | |
1990 | metadata["entity_id"] = cct->_conf->name.get_id(); | |
1991 | ||
1992 | // Our mount position | |
1993 | if (!mount_root.empty()) { | |
1994 | metadata["root"] = mount_root; | |
1995 | } | |
1996 | ||
1997 | // Ceph version | |
1998 | metadata["ceph_version"] = pretty_version_to_str(); | |
1999 | metadata["ceph_sha1"] = git_version_to_str(); | |
2000 | ||
2001 | // Apply any metadata from the user's configured overrides | |
2002 | std::vector<std::string> tokens; | |
2003 | get_str_vec(cct->_conf->client_metadata, ",", tokens); | |
2004 | for (const auto &i : tokens) { | |
2005 | auto eqpos = i.find("="); | |
2006 | // Throw out anything that isn't of the form "<str>=<str>" | |
2007 | if (eqpos == 0 || eqpos == std::string::npos || eqpos == i.size()) { | |
2008 | lderr(cct) << "Invalid metadata keyval pair: '" << i << "'" << dendl; | |
2009 | continue; | |
2010 | } | |
2011 | metadata[i.substr(0, eqpos)] = i.substr(eqpos + 1); | |
2012 | } | |
2013 | } | |
2014 | ||
2015 | /** | |
2016 | * Optionally add or override client metadata fields. | |
2017 | */ | |
2018 | void Client::update_metadata(std::string const &k, std::string const &v) | |
2019 | { | |
11fdf7f2 TL |
2020 | std::lock_guard l(client_lock); |
2021 | ceph_assert(initialized); | |
7c673cae | 2022 | |
11fdf7f2 TL |
2023 | auto it = metadata.find(k); |
2024 | if (it != metadata.end()) { | |
7c673cae | 2025 | ldout(cct, 1) << __func__ << " warning, overriding metadata field '" << k |
11fdf7f2 | 2026 | << "' from '" << it->second << "' to '" << v << "'" << dendl; |
7c673cae FG |
2027 | } |
2028 | ||
2029 | metadata[k] = v; | |
2030 | } | |
2031 | ||
2032 | MetaSession *Client::_open_mds_session(mds_rank_t mds) | |
2033 | { | |
11fdf7f2 TL |
2034 | ldout(cct, 10) << __func__ << " mds." << mds << dendl; |
2035 | auto addrs = mdsmap->get_addrs(mds); | |
2036 | auto em = mds_sessions.emplace(std::piecewise_construct, | |
2037 | std::forward_as_tuple(mds), | |
2038 | std::forward_as_tuple(mds, messenger->connect_to_mds(addrs), addrs)); | |
2039 | ceph_assert(em.second); /* not already present */ | |
2040 | MetaSession *session = &em.first->second; | |
7c673cae FG |
2041 | |
2042 | // Maybe skip sending a request to open if this MDS daemon | |
2043 | // has previously sent us a REJECT. | |
2044 | if (rejected_by_mds.count(mds)) { | |
11fdf7f2 TL |
2045 | if (rejected_by_mds[mds] == session->addrs) { |
2046 | ldout(cct, 4) << __func__ << " mds." << mds << " skipping " | |
7c673cae FG |
2047 | "because we were rejected" << dendl; |
2048 | return session; | |
2049 | } else { | |
11fdf7f2 | 2050 | ldout(cct, 4) << __func__ << " mds." << mds << " old inst " |
7c673cae FG |
2051 | "rejected us, trying with new inst" << dendl; |
2052 | rejected_by_mds.erase(mds); | |
2053 | } | |
2054 | } | |
2055 | ||
11fdf7f2 TL |
2056 | auto m = MClientSession::create(CEPH_SESSION_REQUEST_OPEN); |
2057 | m->metadata = metadata; | |
2058 | m->supported_features = feature_bitset_t(CEPHFS_FEATURES_CLIENT_SUPPORTED); | |
2059 | session->con->send_message2(std::move(m)); | |
7c673cae FG |
2060 | return session; |
2061 | } | |
2062 | ||
2063 | void Client::_close_mds_session(MetaSession *s) | |
2064 | { | |
11fdf7f2 | 2065 | ldout(cct, 2) << __func__ << " mds." << s->mds_num << " seq " << s->seq << dendl; |
7c673cae | 2066 | s->state = MetaSession::STATE_CLOSING; |
11fdf7f2 | 2067 | s->con->send_message2(MClientSession::create(CEPH_SESSION_REQUEST_CLOSE, s->seq)); |
7c673cae FG |
2068 | } |
2069 | ||
2070 | void Client::_closed_mds_session(MetaSession *s) | |
2071 | { | |
11fdf7f2 | 2072 | ldout(cct, 5) << __func__ << " mds." << s->mds_num << " seq " << s->seq << dendl; |
7c673cae FG |
2073 | s->state = MetaSession::STATE_CLOSED; |
2074 | s->con->mark_down(); | |
2075 | signal_context_list(s->waiting_for_open); | |
2076 | mount_cond.Signal(); | |
2077 | remove_session_caps(s); | |
2078 | kick_requests_closed(s); | |
2079 | mds_sessions.erase(s->mds_num); | |
7c673cae FG |
2080 | } |
2081 | ||
11fdf7f2 | 2082 | void Client::handle_client_session(const MConstRef<MClientSession>& m) |
7c673cae FG |
2083 | { |
2084 | mds_rank_t from = mds_rank_t(m->get_source().num()); | |
11fdf7f2 | 2085 | ldout(cct, 10) << __func__ << " " << *m << " from mds." << from << dendl; |
7c673cae FG |
2086 | |
2087 | MetaSession *session = _get_mds_session(from, m->get_connection().get()); | |
2088 | if (!session) { | |
2089 | ldout(cct, 10) << " discarding session message from sessionless mds " << m->get_source_inst() << dendl; | |
7c673cae FG |
2090 | return; |
2091 | } | |
2092 | ||
2093 | switch (m->get_op()) { | |
2094 | case CEPH_SESSION_OPEN: | |
11fdf7f2 TL |
2095 | { |
2096 | feature_bitset_t missing_features(CEPHFS_FEATURES_CLIENT_REQUIRED); | |
2097 | missing_features -= m->supported_features; | |
2098 | if (!missing_features.empty()) { | |
2099 | lderr(cct) << "mds." << from << " lacks required features '" | |
2100 | << missing_features << "', closing session " << dendl; | |
2101 | rejected_by_mds[session->mds_num] = session->addrs; | |
2102 | _close_mds_session(session); | |
2103 | _closed_mds_session(session); | |
2104 | break; | |
2105 | } | |
2106 | session->mds_features = std::move(m->supported_features); | |
2107 | ||
2108 | renew_caps(session); | |
2109 | session->state = MetaSession::STATE_OPEN; | |
2110 | if (unmounting) | |
2111 | mount_cond.Signal(); | |
2112 | else | |
2113 | connect_mds_targets(from); | |
2114 | signal_context_list(session->waiting_for_open); | |
2115 | break; | |
2116 | } | |
7c673cae FG |
2117 | |
2118 | case CEPH_SESSION_CLOSE: | |
2119 | _closed_mds_session(session); | |
2120 | break; | |
2121 | ||
2122 | case CEPH_SESSION_RENEWCAPS: | |
2123 | if (session->cap_renew_seq == m->get_seq()) { | |
a8e16298 | 2124 | bool was_stale = ceph_clock_now() >= session->cap_ttl; |
7c673cae FG |
2125 | session->cap_ttl = |
2126 | session->last_cap_renew_request + mdsmap->get_session_timeout(); | |
a8e16298 TL |
2127 | if (was_stale) |
2128 | wake_up_session_caps(session, false); | |
7c673cae FG |
2129 | } |
2130 | break; | |
2131 | ||
2132 | case CEPH_SESSION_STALE: | |
28e407b8 AA |
2133 | // invalidate session caps/leases |
2134 | session->cap_gen++; | |
2135 | session->cap_ttl = ceph_clock_now(); | |
2136 | session->cap_ttl -= 1; | |
7c673cae FG |
2137 | renew_caps(session); |
2138 | break; | |
2139 | ||
2140 | case CEPH_SESSION_RECALL_STATE: | |
2141 | trim_caps(session, m->get_max_caps()); | |
2142 | break; | |
2143 | ||
2144 | case CEPH_SESSION_FLUSHMSG: | |
a8e16298 | 2145 | /* flush cap release */ |
11fdf7f2 TL |
2146 | if (auto& m = session->release; m) { |
2147 | session->con->send_message2(std::move(m)); | |
a8e16298 | 2148 | } |
11fdf7f2 | 2149 | session->con->send_message2(MClientSession::create(CEPH_SESSION_FLUSHMSG_ACK, m->get_seq())); |
7c673cae FG |
2150 | break; |
2151 | ||
2152 | case CEPH_SESSION_FORCE_RO: | |
2153 | force_session_readonly(session); | |
2154 | break; | |
2155 | ||
2156 | case CEPH_SESSION_REJECT: | |
11fdf7f2 TL |
2157 | { |
2158 | std::string_view error_str; | |
2159 | auto it = m->metadata.find("error_string"); | |
2160 | if (it != m->metadata.end()) | |
2161 | error_str = it->second; | |
2162 | else | |
2163 | error_str = "unknown error"; | |
2164 | lderr(cct) << "mds." << from << " rejected us (" << error_str << ")" << dendl; | |
7c673cae | 2165 | |
11fdf7f2 TL |
2166 | rejected_by_mds[session->mds_num] = session->addrs; |
2167 | _closed_mds_session(session); | |
2168 | } | |
7c673cae FG |
2169 | break; |
2170 | ||
2171 | default: | |
2172 | ceph_abort(); | |
2173 | } | |
7c673cae FG |
2174 | } |
2175 | ||
2176 | bool Client::_any_stale_sessions() const | |
2177 | { | |
11fdf7f2 | 2178 | ceph_assert(client_lock.is_locked_by_me()); |
7c673cae | 2179 | |
11fdf7f2 TL |
2180 | for (const auto &p : mds_sessions) { |
2181 | if (p.second.state == MetaSession::STATE_STALE) { | |
7c673cae FG |
2182 | return true; |
2183 | } | |
2184 | } | |
2185 | ||
2186 | return false; | |
2187 | } | |
2188 | ||
2189 | void Client::_kick_stale_sessions() | |
2190 | { | |
11fdf7f2 | 2191 | ldout(cct, 1) << __func__ << dendl; |
7c673cae | 2192 | |
11fdf7f2 TL |
2193 | for (auto it = mds_sessions.begin(); it != mds_sessions.end(); ) { |
2194 | MetaSession &s = it->second; | |
2195 | ++it; | |
2196 | if (s.state == MetaSession::STATE_STALE) | |
2197 | _closed_mds_session(&s); | |
7c673cae FG |
2198 | } |
2199 | } | |
2200 | ||
2201 | void Client::send_request(MetaRequest *request, MetaSession *session, | |
2202 | bool drop_cap_releases) | |
2203 | { | |
2204 | // make the request | |
2205 | mds_rank_t mds = session->mds_num; | |
11fdf7f2 | 2206 | ldout(cct, 10) << __func__ << " rebuilding request " << request->get_tid() |
7c673cae | 2207 | << " for mds." << mds << dendl; |
11fdf7f2 | 2208 | auto r = build_client_request(request); |
7c673cae FG |
2209 | if (request->dentry()) { |
2210 | r->set_dentry_wanted(); | |
2211 | } | |
2212 | if (request->got_unsafe) { | |
2213 | r->set_replayed_op(); | |
2214 | if (request->target) | |
2215 | r->head.ino = request->target->ino; | |
2216 | } else { | |
2217 | encode_cap_releases(request, mds); | |
2218 | if (drop_cap_releases) // we haven't send cap reconnect yet, drop cap releases | |
2219 | request->cap_releases.clear(); | |
2220 | else | |
2221 | r->releases.swap(request->cap_releases); | |
2222 | } | |
2223 | r->set_mdsmap_epoch(mdsmap->get_epoch()); | |
2224 | if (r->head.op == CEPH_MDS_OP_SETXATTR) { | |
2225 | objecter->with_osdmap([r](const OSDMap& o) { | |
2226 | r->set_osdmap_epoch(o.get_epoch()); | |
2227 | }); | |
2228 | } | |
2229 | ||
2230 | if (request->mds == -1) { | |
2231 | request->sent_stamp = ceph_clock_now(); | |
11fdf7f2 | 2232 | ldout(cct, 20) << __func__ << " set sent_stamp to " << request->sent_stamp << dendl; |
7c673cae FG |
2233 | } |
2234 | request->mds = mds; | |
2235 | ||
2236 | Inode *in = request->inode(); | |
11fdf7f2 TL |
2237 | if (in) { |
2238 | auto it = in->caps.find(mds); | |
2239 | if (it != in->caps.end()) { | |
2240 | request->sent_on_mseq = it->second.mseq; | |
2241 | } | |
2242 | } | |
7c673cae FG |
2243 | |
2244 | session->requests.push_back(&request->item); | |
2245 | ||
11fdf7f2 TL |
2246 | ldout(cct, 10) << __func__ << " " << *r << " to mds." << mds << dendl; |
2247 | session->con->send_message2(std::move(r)); | |
7c673cae FG |
2248 | } |
2249 | ||
11fdf7f2 | 2250 | MClientRequest::ref Client::build_client_request(MetaRequest *request) |
7c673cae | 2251 | { |
11fdf7f2 | 2252 | auto req = MClientRequest::create(request->get_op()); |
7c673cae FG |
2253 | req->set_tid(request->tid); |
2254 | req->set_stamp(request->op_stamp); | |
2255 | memcpy(&req->head, &request->head, sizeof(ceph_mds_request_head)); | |
2256 | ||
2257 | // if the filepath's haven't been set, set them! | |
2258 | if (request->path.empty()) { | |
2259 | Inode *in = request->inode(); | |
2260 | Dentry *de = request->dentry(); | |
2261 | if (in) | |
2262 | in->make_nosnap_relative_path(request->path); | |
2263 | else if (de) { | |
2264 | if (de->inode) | |
2265 | de->inode->make_nosnap_relative_path(request->path); | |
2266 | else if (de->dir) { | |
2267 | de->dir->parent_inode->make_nosnap_relative_path(request->path); | |
2268 | request->path.push_dentry(de->name); | |
2269 | } | |
2270 | else ldout(cct, 1) << "Warning -- unable to construct a filepath!" | |
2271 | << " No path, inode, or appropriately-endowed dentry given!" | |
2272 | << dendl; | |
2273 | } else ldout(cct, 1) << "Warning -- unable to construct a filepath!" | |
2274 | << " No path, inode, or dentry given!" | |
2275 | << dendl; | |
2276 | } | |
2277 | req->set_filepath(request->get_filepath()); | |
2278 | req->set_filepath2(request->get_filepath2()); | |
2279 | req->set_data(request->data); | |
2280 | req->set_retry_attempt(request->retry_attempt++); | |
2281 | req->head.num_fwd = request->num_fwd; | |
2282 | const gid_t *_gids; | |
2283 | int gid_count = request->perms.get_gids(&_gids); | |
2284 | req->set_gid_list(gid_count, _gids); | |
2285 | return req; | |
2286 | } | |
2287 | ||
2288 | ||
2289 | ||
11fdf7f2 | 2290 | void Client::handle_client_request_forward(const MConstRef<MClientRequestForward>& fwd) |
7c673cae FG |
2291 | { |
2292 | mds_rank_t mds = mds_rank_t(fwd->get_source().num()); | |
2293 | MetaSession *session = _get_mds_session(mds, fwd->get_connection().get()); | |
2294 | if (!session) { | |
7c673cae FG |
2295 | return; |
2296 | } | |
2297 | ceph_tid_t tid = fwd->get_tid(); | |
2298 | ||
2299 | if (mds_requests.count(tid) == 0) { | |
11fdf7f2 | 2300 | ldout(cct, 10) << __func__ << " no pending request on tid " << tid << dendl; |
7c673cae FG |
2301 | return; |
2302 | } | |
2303 | ||
2304 | MetaRequest *request = mds_requests[tid]; | |
11fdf7f2 | 2305 | ceph_assert(request); |
7c673cae FG |
2306 | |
2307 | // reset retry counter | |
2308 | request->retry_attempt = 0; | |
2309 | ||
2310 | // request not forwarded, or dest mds has no session. | |
2311 | // resend. | |
11fdf7f2 | 2312 | ldout(cct, 10) << __func__ << " tid " << tid |
7c673cae FG |
2313 | << " fwd " << fwd->get_num_fwd() |
2314 | << " to mds." << fwd->get_dest_mds() | |
2315 | << ", resending to " << fwd->get_dest_mds() | |
2316 | << dendl; | |
2317 | ||
2318 | request->mds = -1; | |
2319 | request->item.remove_myself(); | |
2320 | request->num_fwd = fwd->get_num_fwd(); | |
2321 | request->resend_mds = fwd->get_dest_mds(); | |
2322 | request->caller_cond->Signal(); | |
7c673cae FG |
2323 | } |
2324 | ||
2325 | bool Client::is_dir_operation(MetaRequest *req) | |
2326 | { | |
2327 | int op = req->get_op(); | |
2328 | if (op == CEPH_MDS_OP_MKNOD || op == CEPH_MDS_OP_LINK || | |
2329 | op == CEPH_MDS_OP_UNLINK || op == CEPH_MDS_OP_RENAME || | |
2330 | op == CEPH_MDS_OP_MKDIR || op == CEPH_MDS_OP_RMDIR || | |
2331 | op == CEPH_MDS_OP_SYMLINK || op == CEPH_MDS_OP_CREATE) | |
2332 | return true; | |
2333 | return false; | |
2334 | } | |
2335 | ||
11fdf7f2 | 2336 | void Client::handle_client_reply(const MConstRef<MClientReply>& reply) |
7c673cae FG |
2337 | { |
2338 | mds_rank_t mds_num = mds_rank_t(reply->get_source().num()); | |
2339 | MetaSession *session = _get_mds_session(mds_num, reply->get_connection().get()); | |
2340 | if (!session) { | |
7c673cae FG |
2341 | return; |
2342 | } | |
2343 | ||
2344 | ceph_tid_t tid = reply->get_tid(); | |
2345 | bool is_safe = reply->is_safe(); | |
2346 | ||
2347 | if (mds_requests.count(tid) == 0) { | |
11fdf7f2 | 2348 | lderr(cct) << __func__ << " no pending request on tid " << tid |
7c673cae | 2349 | << " safe is:" << is_safe << dendl; |
7c673cae FG |
2350 | return; |
2351 | } | |
2352 | MetaRequest *request = mds_requests.at(tid); | |
2353 | ||
11fdf7f2 | 2354 | ldout(cct, 20) << __func__ << " got a reply. Safe:" << is_safe |
7c673cae FG |
2355 | << " tid " << tid << dendl; |
2356 | ||
2357 | if (request->got_unsafe && !is_safe) { | |
2358 | //duplicate response | |
2359 | ldout(cct, 0) << "got a duplicate reply on tid " << tid << " from mds " | |
2360 | << mds_num << " safe:" << is_safe << dendl; | |
7c673cae FG |
2361 | return; |
2362 | } | |
2363 | ||
2364 | if (-ESTALE == reply->get_result()) { // see if we can get to proper MDS | |
2365 | ldout(cct, 20) << "got ESTALE on tid " << request->tid | |
2366 | << " from mds." << request->mds << dendl; | |
2367 | request->send_to_auth = true; | |
2368 | request->resend_mds = choose_target_mds(request); | |
2369 | Inode *in = request->inode(); | |
11fdf7f2 | 2370 | std::map<mds_rank_t, Cap>::const_iterator it; |
7c673cae FG |
2371 | if (request->resend_mds >= 0 && |
2372 | request->resend_mds == request->mds && | |
2373 | (in == NULL || | |
11fdf7f2 TL |
2374 | (it = in->caps.find(request->resend_mds)) != in->caps.end() || |
2375 | request->sent_on_mseq == it->second.mseq)) { | |
2376 | ldout(cct, 20) << "have to return ESTALE" << dendl; | |
7c673cae FG |
2377 | } else { |
2378 | request->caller_cond->Signal(); | |
7c673cae FG |
2379 | return; |
2380 | } | |
7c673cae FG |
2381 | } |
2382 | ||
11fdf7f2 | 2383 | ceph_assert(!request->reply); |
7c673cae FG |
2384 | request->reply = reply; |
2385 | insert_trace(request, session); | |
2386 | ||
2387 | // Handle unsafe reply | |
2388 | if (!is_safe) { | |
2389 | request->got_unsafe = true; | |
2390 | session->unsafe_requests.push_back(&request->unsafe_item); | |
2391 | if (is_dir_operation(request)) { | |
2392 | Inode *dir = request->inode(); | |
11fdf7f2 | 2393 | ceph_assert(dir); |
7c673cae FG |
2394 | dir->unsafe_ops.push_back(&request->unsafe_dir_item); |
2395 | } | |
2396 | if (request->target) { | |
2397 | InodeRef &in = request->target; | |
2398 | in->unsafe_ops.push_back(&request->unsafe_target_item); | |
2399 | } | |
2400 | } | |
2401 | ||
2402 | // Only signal the caller once (on the first reply): | |
2403 | // Either its an unsafe reply, or its a safe reply and no unsafe reply was sent. | |
2404 | if (!is_safe || !request->got_unsafe) { | |
2405 | Cond cond; | |
2406 | request->dispatch_cond = &cond; | |
2407 | ||
2408 | // wake up waiter | |
11fdf7f2 | 2409 | ldout(cct, 20) << __func__ << " signalling caller " << (void*)request->caller_cond << dendl; |
7c673cae FG |
2410 | request->caller_cond->Signal(); |
2411 | ||
2412 | // wake for kick back | |
2413 | while (request->dispatch_cond) { | |
11fdf7f2 | 2414 | ldout(cct, 20) << __func__ << " awaiting kickback on tid " << tid << " " << &cond << dendl; |
7c673cae FG |
2415 | cond.Wait(client_lock); |
2416 | } | |
2417 | } | |
2418 | ||
2419 | if (is_safe) { | |
2420 | // the filesystem change is committed to disk | |
2421 | // we're done, clean up | |
2422 | if (request->got_unsafe) { | |
2423 | request->unsafe_item.remove_myself(); | |
2424 | request->unsafe_dir_item.remove_myself(); | |
2425 | request->unsafe_target_item.remove_myself(); | |
2426 | signal_cond_list(request->waitfor_safe); | |
2427 | } | |
2428 | request->item.remove_myself(); | |
2429 | unregister_request(request); | |
2430 | } | |
2431 | if (unmounting) | |
2432 | mount_cond.Signal(); | |
2433 | } | |
2434 | ||
2435 | void Client::_handle_full_flag(int64_t pool) | |
2436 | { | |
2437 | ldout(cct, 1) << __func__ << ": FULL: cancelling outstanding operations " | |
2438 | << "on " << pool << dendl; | |
2439 | // Cancel all outstanding ops in this pool with -ENOSPC: it is necessary | |
2440 | // to do this rather than blocking, because otherwise when we fill up we | |
2441 | // potentially lock caps forever on files with dirty pages, and we need | |
2442 | // to be able to release those caps to the MDS so that it can delete files | |
2443 | // and free up space. | |
2444 | epoch_t cancelled_epoch = objecter->op_cancel_writes(-ENOSPC, pool); | |
2445 | ||
2446 | // For all inodes with layouts in this pool and a pending flush write op | |
2447 | // (i.e. one of the ones we will cancel), we've got to purge_set their data | |
2448 | // from ObjectCacher so that it doesn't re-issue the write in response to | |
2449 | // the ENOSPC error. | |
2450 | // Fortunately since we're cancelling everything in a given pool, we don't | |
2451 | // need to know which ops belong to which ObjectSet, we can just blow all | |
2452 | // the un-flushed cached data away and mark any dirty inodes' async_err | |
2453 | // field with -ENOSPC as long as we're sure all the ops we cancelled were | |
2454 | // affecting this pool, and all the objectsets we're purging were also | |
2455 | // in this pool. | |
2456 | for (unordered_map<vinodeno_t,Inode*>::iterator i = inode_map.begin(); | |
2457 | i != inode_map.end(); ++i) | |
2458 | { | |
2459 | Inode *inode = i->second; | |
2460 | if (inode->oset.dirty_or_tx | |
2461 | && (pool == -1 || inode->layout.pool_id == pool)) { | |
2462 | ldout(cct, 4) << __func__ << ": FULL: inode 0x" << std::hex << i->first << std::dec | |
2463 | << " has dirty objects, purging and setting ENOSPC" << dendl; | |
2464 | objectcacher->purge_set(&inode->oset); | |
2465 | inode->set_async_err(-ENOSPC); | |
2466 | } | |
2467 | } | |
2468 | ||
2469 | if (cancelled_epoch != (epoch_t)-1) { | |
2470 | set_cap_epoch_barrier(cancelled_epoch); | |
2471 | } | |
2472 | } | |
2473 | ||
11fdf7f2 | 2474 | void Client::handle_osd_map(const MConstRef<MOSDMap>& m) |
7c673cae | 2475 | { |
31f18b77 FG |
2476 | std::set<entity_addr_t> new_blacklists; |
2477 | objecter->consume_blacklist_events(&new_blacklists); | |
2478 | ||
11fdf7f2 TL |
2479 | const auto myaddrs = messenger->get_myaddrs(); |
2480 | bool new_blacklist = false; | |
2481 | bool prenautilus = objecter->with_osdmap( | |
2482 | [&](const OSDMap& o) { | |
2483 | return o.require_osd_release < CEPH_RELEASE_NAUTILUS; | |
2484 | }); | |
2485 | if (!blacklisted) { | |
2486 | for (auto a : myaddrs.v) { | |
2487 | // blacklist entries are always TYPE_ANY for nautilus+ | |
2488 | a.set_type(entity_addr_t::TYPE_ANY); | |
2489 | if (new_blacklists.count(a)) { | |
2490 | new_blacklist = true; | |
2491 | break; | |
2492 | } | |
2493 | if (prenautilus) { | |
2494 | // ...except pre-nautilus, they were TYPE_LEGACY | |
2495 | a.set_type(entity_addr_t::TYPE_LEGACY); | |
2496 | if (new_blacklists.count(a)) { | |
2497 | new_blacklist = true; | |
2498 | break; | |
2499 | } | |
2500 | } | |
2501 | } | |
2502 | } | |
2503 | if (new_blacklist) { | |
31f18b77 FG |
2504 | auto epoch = objecter->with_osdmap([](const OSDMap &o){ |
2505 | return o.get_epoch(); | |
2506 | }); | |
2507 | lderr(cct) << "I was blacklisted at osd epoch " << epoch << dendl; | |
2508 | blacklisted = true; | |
31f18b77 | 2509 | |
11fdf7f2 | 2510 | _abort_mds_sessions(-EBLACKLISTED); |
31f18b77 FG |
2511 | |
2512 | // Since we know all our OSD ops will fail, cancel them all preemtively, | |
2513 | // so that on an unhealthy cluster we can umount promptly even if e.g. | |
2514 | // some PGs were inaccessible. | |
2515 | objecter->op_cancel_writes(-EBLACKLISTED); | |
2516 | ||
2517 | } else if (blacklisted) { | |
2518 | // Handle case where we were blacklisted but no longer are | |
11fdf7f2 TL |
2519 | blacklisted = objecter->with_osdmap([myaddrs](const OSDMap &o){ |
2520 | return o.is_blacklisted(myaddrs);}); | |
31f18b77 FG |
2521 | } |
2522 | ||
f64942e4 AA |
2523 | // Always subscribe to next osdmap for blacklisted client |
2524 | // until this client is not blacklisted. | |
2525 | if (blacklisted) { | |
2526 | objecter->maybe_request_map(); | |
2527 | } | |
2528 | ||
7c673cae FG |
2529 | if (objecter->osdmap_full_flag()) { |
2530 | _handle_full_flag(-1); | |
2531 | } else { | |
2532 | // Accumulate local list of full pools so that I can drop | |
2533 | // the objecter lock before re-entering objecter in | |
2534 | // cancel_writes | |
2535 | std::vector<int64_t> full_pools; | |
2536 | ||
2537 | objecter->with_osdmap([&full_pools](const OSDMap &o) { | |
2538 | for (const auto& kv : o.get_pools()) { | |
2539 | if (kv.second.has_flag(pg_pool_t::FLAG_FULL)) { | |
2540 | full_pools.push_back(kv.first); | |
2541 | } | |
2542 | } | |
2543 | }); | |
2544 | ||
2545 | for (auto p : full_pools) | |
2546 | _handle_full_flag(p); | |
2547 | ||
2548 | // Subscribe to subsequent maps to watch for the full flag going | |
2549 | // away. For the global full flag objecter does this for us, but | |
2550 | // it pays no attention to the per-pool full flag so in this branch | |
2551 | // we do it ourselves. | |
2552 | if (!full_pools.empty()) { | |
2553 | objecter->maybe_request_map(); | |
2554 | } | |
2555 | } | |
7c673cae FG |
2556 | } |
2557 | ||
2558 | ||
2559 | // ------------------------ | |
2560 | // incoming messages | |
2561 | ||
2562 | ||
11fdf7f2 | 2563 | bool Client::ms_dispatch2(const MessageRef &m) |
7c673cae | 2564 | { |
11fdf7f2 | 2565 | std::lock_guard l(client_lock); |
7c673cae FG |
2566 | if (!initialized) { |
2567 | ldout(cct, 10) << "inactive, discarding " << *m << dendl; | |
7c673cae FG |
2568 | return true; |
2569 | } | |
2570 | ||
2571 | switch (m->get_type()) { | |
2572 | // mounting and mds sessions | |
2573 | case CEPH_MSG_MDS_MAP: | |
11fdf7f2 | 2574 | handle_mds_map(MMDSMap::msgref_cast(m)); |
7c673cae FG |
2575 | break; |
2576 | case CEPH_MSG_FS_MAP: | |
11fdf7f2 | 2577 | handle_fs_map(MFSMap::msgref_cast(m)); |
7c673cae FG |
2578 | break; |
2579 | case CEPH_MSG_FS_MAP_USER: | |
11fdf7f2 | 2580 | handle_fs_map_user(MFSMapUser::msgref_cast(m)); |
7c673cae FG |
2581 | break; |
2582 | case CEPH_MSG_CLIENT_SESSION: | |
11fdf7f2 | 2583 | handle_client_session(MClientSession::msgref_cast(m)); |
7c673cae FG |
2584 | break; |
2585 | ||
2586 | case CEPH_MSG_OSD_MAP: | |
11fdf7f2 | 2587 | handle_osd_map(MOSDMap::msgref_cast(m)); |
7c673cae FG |
2588 | break; |
2589 | ||
2590 | // requests | |
2591 | case CEPH_MSG_CLIENT_REQUEST_FORWARD: | |
11fdf7f2 | 2592 | handle_client_request_forward(MClientRequestForward::msgref_cast(m)); |
7c673cae FG |
2593 | break; |
2594 | case CEPH_MSG_CLIENT_REPLY: | |
11fdf7f2 TL |
2595 | handle_client_reply(MClientReply::msgref_cast(m)); |
2596 | break; | |
2597 | ||
2598 | // reclaim reply | |
2599 | case CEPH_MSG_CLIENT_RECLAIM_REPLY: | |
2600 | handle_client_reclaim_reply(MClientReclaimReply::msgref_cast(m)); | |
7c673cae FG |
2601 | break; |
2602 | ||
2603 | case CEPH_MSG_CLIENT_SNAP: | |
11fdf7f2 | 2604 | handle_snap(MClientSnap::msgref_cast(m)); |
7c673cae FG |
2605 | break; |
2606 | case CEPH_MSG_CLIENT_CAPS: | |
11fdf7f2 | 2607 | handle_caps(MClientCaps::msgref_cast(m)); |
7c673cae FG |
2608 | break; |
2609 | case CEPH_MSG_CLIENT_LEASE: | |
11fdf7f2 | 2610 | handle_lease(MClientLease::msgref_cast(m)); |
7c673cae FG |
2611 | break; |
2612 | case MSG_COMMAND_REPLY: | |
2613 | if (m->get_source().type() == CEPH_ENTITY_TYPE_MDS) { | |
11fdf7f2 | 2614 | handle_command_reply(MCommandReply::msgref_cast(m)); |
7c673cae FG |
2615 | } else { |
2616 | return false; | |
2617 | } | |
2618 | break; | |
2619 | case CEPH_MSG_CLIENT_QUOTA: | |
11fdf7f2 | 2620 | handle_quota(MClientQuota::msgref_cast(m)); |
7c673cae FG |
2621 | break; |
2622 | ||
2623 | default: | |
2624 | return false; | |
2625 | } | |
2626 | ||
2627 | // unmounting? | |
2628 | if (unmounting) { | |
2629 | ldout(cct, 10) << "unmounting: trim pass, size was " << lru.lru_get_size() | |
2630 | << "+" << inode_map.size() << dendl; | |
2631 | long unsigned size = lru.lru_get_size() + inode_map.size(); | |
2632 | trim_cache(); | |
2633 | if (size < lru.lru_get_size() + inode_map.size()) { | |
2634 | ldout(cct, 10) << "unmounting: trim pass, cache shrank, poking unmount()" << dendl; | |
2635 | mount_cond.Signal(); | |
2636 | } else { | |
2637 | ldout(cct, 10) << "unmounting: trim pass, size still " << lru.lru_get_size() | |
2638 | << "+" << inode_map.size() << dendl; | |
2639 | } | |
2640 | } | |
2641 | ||
2642 | return true; | |
2643 | } | |
2644 | ||
11fdf7f2 | 2645 | void Client::handle_fs_map(const MConstRef<MFSMap>& m) |
7c673cae FG |
2646 | { |
2647 | fsmap.reset(new FSMap(m->get_fsmap())); | |
7c673cae FG |
2648 | |
2649 | signal_cond_list(waiting_for_fsmap); | |
2650 | ||
2651 | monclient->sub_got("fsmap", fsmap->get_epoch()); | |
2652 | } | |
2653 | ||
11fdf7f2 | 2654 | void Client::handle_fs_map_user(const MConstRef<MFSMapUser>& m) |
7c673cae FG |
2655 | { |
2656 | fsmap_user.reset(new FSMapUser); | |
2657 | *fsmap_user = m->get_fsmap(); | |
7c673cae FG |
2658 | |
2659 | monclient->sub_got("fsmap.user", fsmap_user->get_epoch()); | |
2660 | signal_cond_list(waiting_for_fsmap); | |
2661 | } | |
2662 | ||
11fdf7f2 | 2663 | void Client::handle_mds_map(const MConstRef<MMDSMap>& m) |
7c673cae | 2664 | { |
f64942e4 | 2665 | mds_gid_t old_inc, new_inc; |
7c673cae | 2666 | if (m->get_epoch() <= mdsmap->get_epoch()) { |
11fdf7f2 | 2667 | ldout(cct, 1) << __func__ << " epoch " << m->get_epoch() |
7c673cae FG |
2668 | << " is identical to or older than our " |
2669 | << mdsmap->get_epoch() << dendl; | |
7c673cae | 2670 | return; |
f64942e4 | 2671 | } |
7c673cae | 2672 | |
11fdf7f2 | 2673 | ldout(cct, 1) << __func__ << " epoch " << m->get_epoch() << dendl; |
7c673cae FG |
2674 | |
2675 | std::unique_ptr<MDSMap> oldmap(new MDSMap); | |
2676 | oldmap.swap(mdsmap); | |
2677 | ||
2678 | mdsmap->decode(m->get_encoded()); | |
2679 | ||
2680 | // Cancel any commands for missing or laggy GIDs | |
2681 | std::list<ceph_tid_t> cancel_ops; | |
2682 | auto &commands = command_table.get_commands(); | |
2683 | for (const auto &i : commands) { | |
2684 | auto &op = i.second; | |
2685 | const mds_gid_t op_mds_gid = op.mds_gid; | |
2686 | if (mdsmap->is_dne_gid(op_mds_gid) || mdsmap->is_laggy_gid(op_mds_gid)) { | |
2687 | ldout(cct, 1) << __func__ << ": cancelling command op " << i.first << dendl; | |
2688 | cancel_ops.push_back(i.first); | |
2689 | if (op.outs) { | |
2690 | std::ostringstream ss; | |
2691 | ss << "MDS " << op_mds_gid << " went away"; | |
2692 | *(op.outs) = ss.str(); | |
2693 | } | |
2694 | op.con->mark_down(); | |
2695 | if (op.on_finish) { | |
2696 | op.on_finish->complete(-ETIMEDOUT); | |
2697 | } | |
2698 | } | |
2699 | } | |
2700 | ||
2701 | for (std::list<ceph_tid_t>::iterator i = cancel_ops.begin(); | |
2702 | i != cancel_ops.end(); ++i) { | |
2703 | command_table.erase(*i); | |
2704 | } | |
2705 | ||
2706 | // reset session | |
11fdf7f2 | 2707 | for (auto p = mds_sessions.begin(); p != mds_sessions.end(); ) { |
7c673cae | 2708 | mds_rank_t mds = p->first; |
11fdf7f2 | 2709 | MetaSession *session = &p->second; |
7c673cae FG |
2710 | ++p; |
2711 | ||
2712 | int oldstate = oldmap->get_state(mds); | |
2713 | int newstate = mdsmap->get_state(mds); | |
2714 | if (!mdsmap->is_up(mds)) { | |
2715 | session->con->mark_down(); | |
11fdf7f2 | 2716 | } else if (mdsmap->get_addrs(mds) != session->addrs) { |
f64942e4 AA |
2717 | old_inc = oldmap->get_incarnation(mds); |
2718 | new_inc = mdsmap->get_incarnation(mds); | |
2719 | if (old_inc != new_inc) { | |
2720 | ldout(cct, 1) << "mds incarnation changed from " | |
2721 | << old_inc << " to " << new_inc << dendl; | |
2722 | oldstate = MDSMap::STATE_NULL; | |
2723 | } | |
7c673cae | 2724 | session->con->mark_down(); |
11fdf7f2 | 2725 | session->addrs = mdsmap->get_addrs(mds); |
7c673cae FG |
2726 | // When new MDS starts to take over, notify kernel to trim unused entries |
2727 | // in its dcache/icache. Hopefully, the kernel will release some unused | |
2728 | // inodes before the new MDS enters reconnect state. | |
2729 | trim_cache_for_reconnect(session); | |
2730 | } else if (oldstate == newstate) | |
2731 | continue; // no change | |
2732 | ||
2733 | session->mds_state = newstate; | |
2734 | if (newstate == MDSMap::STATE_RECONNECT) { | |
11fdf7f2 | 2735 | session->con = messenger->connect_to_mds(session->addrs); |
7c673cae | 2736 | send_reconnect(session); |
81eedcae TL |
2737 | } else if (newstate > MDSMap::STATE_RECONNECT) { |
2738 | if (oldstate < MDSMap::STATE_RECONNECT) { | |
2739 | ldout(cct, 1) << "we may miss the MDSMap::RECONNECT, close mds session ... " << dendl; | |
2740 | _closed_mds_session(session); | |
2741 | continue; | |
2742 | } | |
2743 | if (newstate >= MDSMap::STATE_ACTIVE) { | |
2744 | if (oldstate < MDSMap::STATE_ACTIVE) { | |
2745 | // kick new requests | |
2746 | kick_requests(session); | |
2747 | kick_flushing_caps(session); | |
2748 | signal_context_list(session->waiting_for_open); | |
2749 | wake_up_session_caps(session, true); | |
2750 | } | |
2751 | connect_mds_targets(mds); | |
7c673cae | 2752 | } |
7c673cae FG |
2753 | } else if (newstate == MDSMap::STATE_NULL && |
2754 | mds >= mdsmap->get_max_mds()) { | |
2755 | _closed_mds_session(session); | |
2756 | } | |
2757 | } | |
2758 | ||
2759 | // kick any waiting threads | |
2760 | signal_cond_list(waiting_for_mdsmap); | |
2761 | ||
7c673cae FG |
2762 | monclient->sub_got("mdsmap", mdsmap->get_epoch()); |
2763 | } | |
2764 | ||
2765 | void Client::send_reconnect(MetaSession *session) | |
2766 | { | |
2767 | mds_rank_t mds = session->mds_num; | |
11fdf7f2 | 2768 | ldout(cct, 10) << __func__ << " to mds." << mds << dendl; |
7c673cae FG |
2769 | |
2770 | // trim unused caps to reduce MDS's cache rejoin time | |
2771 | trim_cache_for_reconnect(session); | |
2772 | ||
2773 | session->readonly = false; | |
2774 | ||
11fdf7f2 | 2775 | session->release.reset(); |
7c673cae FG |
2776 | |
2777 | // reset my cap seq number | |
2778 | session->seq = 0; | |
2779 | //connect to the mds' offload targets | |
2780 | connect_mds_targets(mds); | |
2781 | //make sure unsafe requests get saved | |
2782 | resend_unsafe_requests(session); | |
2783 | ||
11fdf7f2 TL |
2784 | early_kick_flushing_caps(session); |
2785 | ||
2786 | auto m = MClientReconnect::create(); | |
2787 | bool allow_multi = session->mds_features.test(CEPHFS_FEATURE_MULTI_RECONNECT); | |
7c673cae FG |
2788 | |
2789 | // i have an open session. | |
2790 | ceph::unordered_set<inodeno_t> did_snaprealm; | |
2791 | for (ceph::unordered_map<vinodeno_t, Inode*>::iterator p = inode_map.begin(); | |
2792 | p != inode_map.end(); | |
2793 | ++p) { | |
2794 | Inode *in = p->second; | |
11fdf7f2 TL |
2795 | auto it = in->caps.find(mds); |
2796 | if (it != in->caps.end()) { | |
2797 | if (allow_multi && | |
2798 | m->get_approx_size() >= (std::numeric_limits<int>::max() >> 1)) { | |
2799 | m->mark_more(); | |
2800 | session->con->send_message2(std::move(m)); | |
2801 | ||
2802 | m = MClientReconnect::create(); | |
2803 | } | |
2804 | ||
2805 | Cap &cap = it->second; | |
7c673cae | 2806 | ldout(cct, 10) << " caps on " << p->first |
11fdf7f2 | 2807 | << " " << ccap_string(cap.issued) |
7c673cae FG |
2808 | << " wants " << ccap_string(in->caps_wanted()) |
2809 | << dendl; | |
2810 | filepath path; | |
2811 | in->make_long_path(path); | |
2812 | ldout(cct, 10) << " path " << path << dendl; | |
2813 | ||
2814 | bufferlist flockbl; | |
2815 | _encode_filelocks(in, flockbl); | |
2816 | ||
11fdf7f2 TL |
2817 | cap.seq = 0; // reset seq. |
2818 | cap.issue_seq = 0; // reset seq. | |
2819 | cap.mseq = 0; // reset seq. | |
2820 | // cap gen should catch up with session cap_gen | |
2821 | if (cap.gen < session->cap_gen) { | |
2822 | cap.gen = session->cap_gen; | |
2823 | cap.issued = cap.implemented = CEPH_CAP_PIN; | |
2824 | } else { | |
2825 | cap.issued = cap.implemented; | |
2826 | } | |
7c673cae FG |
2827 | snapid_t snap_follows = 0; |
2828 | if (!in->cap_snaps.empty()) | |
2829 | snap_follows = in->cap_snaps.begin()->first; | |
2830 | ||
2831 | m->add_cap(p->first.ino, | |
11fdf7f2 | 2832 | cap.cap_id, |
7c673cae FG |
2833 | path.get_ino(), path.get_path(), // ino |
2834 | in->caps_wanted(), // wanted | |
11fdf7f2 | 2835 | cap.issued, // issued |
7c673cae FG |
2836 | in->snaprealm->ino, |
2837 | snap_follows, | |
2838 | flockbl); | |
2839 | ||
2840 | if (did_snaprealm.count(in->snaprealm->ino) == 0) { | |
2841 | ldout(cct, 10) << " snaprealm " << *in->snaprealm << dendl; | |
2842 | m->add_snaprealm(in->snaprealm->ino, in->snaprealm->seq, in->snaprealm->parent); | |
2843 | did_snaprealm.insert(in->snaprealm->ino); | |
2844 | } | |
2845 | } | |
2846 | } | |
2847 | ||
11fdf7f2 TL |
2848 | if (!allow_multi) |
2849 | m->set_encoding_version(0); // use connection features to choose encoding | |
2850 | session->con->send_message2(std::move(m)); | |
7c673cae FG |
2851 | |
2852 | mount_cond.Signal(); | |
11fdf7f2 TL |
2853 | |
2854 | if (session->reclaim_state == MetaSession::RECLAIMING) | |
2855 | signal_cond_list(waiting_for_reclaim); | |
7c673cae FG |
2856 | } |
2857 | ||
2858 | ||
2859 | void Client::kick_requests(MetaSession *session) | |
2860 | { | |
11fdf7f2 | 2861 | ldout(cct, 10) << __func__ << " for mds." << session->mds_num << dendl; |
7c673cae FG |
2862 | for (map<ceph_tid_t, MetaRequest*>::iterator p = mds_requests.begin(); |
2863 | p != mds_requests.end(); | |
2864 | ++p) { | |
31f18b77 FG |
2865 | MetaRequest *req = p->second; |
2866 | if (req->got_unsafe) | |
2867 | continue; | |
2868 | if (req->aborted()) { | |
2869 | if (req->caller_cond) { | |
2870 | req->kick = true; | |
2871 | req->caller_cond->Signal(); | |
2872 | } | |
7c673cae | 2873 | continue; |
31f18b77 FG |
2874 | } |
2875 | if (req->retry_attempt > 0) | |
7c673cae | 2876 | continue; // new requests only |
31f18b77 | 2877 | if (req->mds == session->mds_num) { |
7c673cae FG |
2878 | send_request(p->second, session); |
2879 | } | |
2880 | } | |
2881 | } | |
2882 | ||
2883 | void Client::resend_unsafe_requests(MetaSession *session) | |
2884 | { | |
2885 | for (xlist<MetaRequest*>::iterator iter = session->unsafe_requests.begin(); | |
2886 | !iter.end(); | |
2887 | ++iter) | |
2888 | send_request(*iter, session); | |
2889 | ||
2890 | // also re-send old requests when MDS enters reconnect stage. So that MDS can | |
2891 | // process completed requests in clientreplay stage. | |
2892 | for (map<ceph_tid_t, MetaRequest*>::iterator p = mds_requests.begin(); | |
2893 | p != mds_requests.end(); | |
2894 | ++p) { | |
2895 | MetaRequest *req = p->second; | |
2896 | if (req->got_unsafe) | |
2897 | continue; | |
31f18b77 FG |
2898 | if (req->aborted()) |
2899 | continue; | |
7c673cae FG |
2900 | if (req->retry_attempt == 0) |
2901 | continue; // old requests only | |
2902 | if (req->mds == session->mds_num) | |
2903 | send_request(req, session, true); | |
2904 | } | |
2905 | } | |
2906 | ||
2907 | void Client::wait_unsafe_requests() | |
2908 | { | |
2909 | list<MetaRequest*> last_unsafe_reqs; | |
11fdf7f2 TL |
2910 | for (const auto &p : mds_sessions) { |
2911 | const MetaSession &s = p.second; | |
2912 | if (!s.unsafe_requests.empty()) { | |
2913 | MetaRequest *req = s.unsafe_requests.back(); | |
7c673cae FG |
2914 | req->get(); |
2915 | last_unsafe_reqs.push_back(req); | |
2916 | } | |
2917 | } | |
2918 | ||
2919 | for (list<MetaRequest*>::iterator p = last_unsafe_reqs.begin(); | |
2920 | p != last_unsafe_reqs.end(); | |
2921 | ++p) { | |
2922 | MetaRequest *req = *p; | |
2923 | if (req->unsafe_item.is_on_list()) | |
2924 | wait_on_list(req->waitfor_safe); | |
2925 | put_request(req); | |
2926 | } | |
2927 | } | |
2928 | ||
2929 | void Client::kick_requests_closed(MetaSession *session) | |
2930 | { | |
11fdf7f2 | 2931 | ldout(cct, 10) << __func__ << " for mds." << session->mds_num << dendl; |
7c673cae FG |
2932 | for (map<ceph_tid_t, MetaRequest*>::iterator p = mds_requests.begin(); |
2933 | p != mds_requests.end(); ) { | |
2934 | MetaRequest *req = p->second; | |
2935 | ++p; | |
2936 | if (req->mds == session->mds_num) { | |
2937 | if (req->caller_cond) { | |
2938 | req->kick = true; | |
2939 | req->caller_cond->Signal(); | |
2940 | } | |
2941 | req->item.remove_myself(); | |
2942 | if (req->got_unsafe) { | |
11fdf7f2 | 2943 | lderr(cct) << __func__ << " removing unsafe request " << req->get_tid() << dendl; |
7c673cae FG |
2944 | req->unsafe_item.remove_myself(); |
2945 | req->unsafe_dir_item.remove_myself(); | |
2946 | req->unsafe_target_item.remove_myself(); | |
2947 | signal_cond_list(req->waitfor_safe); | |
2948 | unregister_request(req); | |
2949 | } | |
2950 | } | |
2951 | } | |
11fdf7f2 TL |
2952 | ceph_assert(session->requests.empty()); |
2953 | ceph_assert(session->unsafe_requests.empty()); | |
7c673cae FG |
2954 | } |
2955 | ||
2956 | ||
2957 | ||
2958 | ||
2959 | /************ | |
2960 | * leases | |
2961 | */ | |
2962 | ||
2963 | void Client::got_mds_push(MetaSession *s) | |
2964 | { | |
2965 | s->seq++; | |
2966 | ldout(cct, 10) << " mds." << s->mds_num << " seq now " << s->seq << dendl; | |
2967 | if (s->state == MetaSession::STATE_CLOSING) { | |
11fdf7f2 | 2968 | s->con->send_message2(MClientSession::create(CEPH_SESSION_REQUEST_CLOSE, s->seq)); |
7c673cae FG |
2969 | } |
2970 | } | |
2971 | ||
11fdf7f2 | 2972 | void Client::handle_lease(const MConstRef<MClientLease>& m) |
7c673cae | 2973 | { |
11fdf7f2 | 2974 | ldout(cct, 10) << __func__ << " " << *m << dendl; |
7c673cae | 2975 | |
11fdf7f2 | 2976 | ceph_assert(m->get_action() == CEPH_MDS_LEASE_REVOKE); |
7c673cae FG |
2977 | |
2978 | mds_rank_t mds = mds_rank_t(m->get_source().num()); | |
2979 | MetaSession *session = _get_mds_session(mds, m->get_connection().get()); | |
2980 | if (!session) { | |
7c673cae FG |
2981 | return; |
2982 | } | |
2983 | ||
2984 | got_mds_push(session); | |
2985 | ||
2986 | ceph_seq_t seq = m->get_seq(); | |
2987 | ||
2988 | Inode *in; | |
2989 | vinodeno_t vino(m->get_ino(), CEPH_NOSNAP); | |
2990 | if (inode_map.count(vino) == 0) { | |
2991 | ldout(cct, 10) << " don't have vino " << vino << dendl; | |
2992 | goto revoke; | |
2993 | } | |
2994 | in = inode_map[vino]; | |
2995 | ||
2996 | if (m->get_mask() & CEPH_LOCK_DN) { | |
2997 | if (!in->dir || in->dir->dentries.count(m->dname) == 0) { | |
2998 | ldout(cct, 10) << " don't have dir|dentry " << m->get_ino() << "/" << m->dname <<dendl; | |
2999 | goto revoke; | |
3000 | } | |
3001 | Dentry *dn = in->dir->dentries[m->dname]; | |
3002 | ldout(cct, 10) << " revoked DN lease on " << dn << dendl; | |
3003 | dn->lease_mds = -1; | |
3004 | } | |
3005 | ||
3006 | revoke: | |
11fdf7f2 TL |
3007 | { |
3008 | auto reply = MClientLease::create(CEPH_MDS_LEASE_RELEASE, seq, m->get_mask(), m->get_ino(), m->get_first(), m->get_last(), m->dname); | |
3009 | m->get_connection()->send_message2(std::move(reply)); | |
3010 | } | |
7c673cae FG |
3011 | } |
3012 | ||
3013 | void Client::put_inode(Inode *in, int n) | |
3014 | { | |
11fdf7f2 | 3015 | ldout(cct, 10) << __func__ << " on " << *in << dendl; |
7c673cae FG |
3016 | int left = in->_put(n); |
3017 | if (left == 0) { | |
3018 | // release any caps | |
3019 | remove_all_caps(in); | |
3020 | ||
11fdf7f2 | 3021 | ldout(cct, 10) << __func__ << " deleting " << *in << dendl; |
7c673cae | 3022 | bool unclean = objectcacher->release_set(&in->oset); |
11fdf7f2 | 3023 | ceph_assert(!unclean); |
7c673cae FG |
3024 | inode_map.erase(in->vino()); |
3025 | if (use_faked_inos()) | |
3026 | _release_faked_ino(in); | |
3027 | ||
3028 | if (in == root) { | |
3029 | root = 0; | |
3030 | root_ancestor = 0; | |
3031 | while (!root_parents.empty()) | |
3032 | root_parents.erase(root_parents.begin()); | |
3033 | } | |
3034 | ||
3035 | delete in; | |
3036 | } | |
3037 | } | |
3038 | ||
3039 | void Client::close_dir(Dir *dir) | |
3040 | { | |
3041 | Inode *in = dir->parent_inode; | |
11fdf7f2 TL |
3042 | ldout(cct, 15) << __func__ << " dir " << dir << " on " << in << dendl; |
3043 | ceph_assert(dir->is_empty()); | |
3044 | ceph_assert(in->dir == dir); | |
3045 | ceph_assert(in->dentries.size() < 2); // dirs can't be hard-linked | |
3046 | if (!in->dentries.empty()) | |
7c673cae FG |
3047 | in->get_first_parent()->put(); // unpin dentry |
3048 | ||
3049 | delete in->dir; | |
3050 | in->dir = 0; | |
3051 | put_inode(in); // unpin inode | |
3052 | } | |
3053 | ||
3054 | /** | |
3055 | * Don't call this with in==NULL, use get_or_create for that | |
3056 | * leave dn set to default NULL unless you're trying to add | |
3057 | * a new inode to a pre-created Dentry | |
3058 | */ | |
3059 | Dentry* Client::link(Dir *dir, const string& name, Inode *in, Dentry *dn) | |
3060 | { | |
3061 | if (!dn) { | |
3062 | // create a new Dentry | |
11fdf7f2 TL |
3063 | dn = new Dentry(dir, name); |
3064 | ||
7c673cae FG |
3065 | lru.lru_insert_mid(dn); // mid or top? |
3066 | ||
3067 | ldout(cct, 15) << "link dir " << dir->parent_inode << " '" << name << "' to inode " << in | |
3068 | << " dn " << dn << " (new dn)" << dendl; | |
3069 | } else { | |
11fdf7f2 | 3070 | ceph_assert(!dn->inode); |
7c673cae FG |
3071 | ldout(cct, 15) << "link dir " << dir->parent_inode << " '" << name << "' to inode " << in |
3072 | << " dn " << dn << " (old dn)" << dendl; | |
3073 | } | |
3074 | ||
3075 | if (in) { // link to inode | |
11fdf7f2 | 3076 | InodeRef tmp_ref; |
7c673cae | 3077 | // only one parent for directories! |
11fdf7f2 TL |
3078 | if (in->is_dir() && !in->dentries.empty()) { |
3079 | tmp_ref = in; // prevent unlink below from freeing the inode. | |
7c673cae | 3080 | Dentry *olddn = in->get_first_parent(); |
11fdf7f2 | 3081 | ceph_assert(olddn->dir != dir || olddn->name != name); |
7c673cae FG |
3082 | Inode *old_diri = olddn->dir->parent_inode; |
3083 | old_diri->dir_release_count++; | |
3084 | clear_dir_complete_and_ordered(old_diri, true); | |
3085 | unlink(olddn, true, true); // keep dir, dentry | |
3086 | } | |
3087 | ||
11fdf7f2 TL |
3088 | dn->link(in); |
3089 | ldout(cct, 20) << "link inode " << in << " parents now " << in->dentries << dendl; | |
7c673cae FG |
3090 | } |
3091 | ||
3092 | return dn; | |
3093 | } | |
3094 | ||
3095 | void Client::unlink(Dentry *dn, bool keepdir, bool keepdentry) | |
3096 | { | |
11fdf7f2 | 3097 | InodeRef in(dn->inode); |
7c673cae FG |
3098 | ldout(cct, 15) << "unlink dir " << dn->dir->parent_inode << " '" << dn->name << "' dn " << dn |
3099 | << " inode " << dn->inode << dendl; | |
3100 | ||
3101 | // unlink from inode | |
11fdf7f2 TL |
3102 | if (dn->inode) { |
3103 | dn->unlink(); | |
3104 | ldout(cct, 20) << "unlink inode " << in << " parents now " << in->dentries << dendl; | |
7c673cae FG |
3105 | } |
3106 | ||
3107 | if (keepdentry) { | |
3108 | dn->lease_mds = -1; | |
3109 | } else { | |
3110 | ldout(cct, 15) << "unlink removing '" << dn->name << "' dn " << dn << dendl; | |
3111 | ||
3112 | // unlink from dir | |
11fdf7f2 TL |
3113 | Dir *dir = dn->dir; |
3114 | dn->detach(); | |
7c673cae FG |
3115 | |
3116 | // delete den | |
3117 | lru.lru_remove(dn); | |
3118 | dn->put(); | |
11fdf7f2 TL |
3119 | |
3120 | if (dir->is_empty() && !keepdir) | |
3121 | close_dir(dir); | |
7c673cae FG |
3122 | } |
3123 | } | |
3124 | ||
3125 | /** | |
3126 | * For asynchronous flushes, check for errors from the IO and | |
3127 | * update the inode if necessary | |
3128 | */ | |
3129 | class C_Client_FlushComplete : public Context { | |
3130 | private: | |
3131 | Client *client; | |
3132 | InodeRef inode; | |
3133 | public: | |
3134 | C_Client_FlushComplete(Client *c, Inode *in) : client(c), inode(in) { } | |
3135 | void finish(int r) override { | |
11fdf7f2 | 3136 | ceph_assert(client->client_lock.is_locked_by_me()); |
7c673cae FG |
3137 | if (r != 0) { |
3138 | client_t const whoami = client->whoami; // For the benefit of ldout prefix | |
3139 | ldout(client->cct, 1) << "I/O error from flush on inode " << inode | |
3140 | << " 0x" << std::hex << inode->ino << std::dec | |
3141 | << ": " << r << "(" << cpp_strerror(r) << ")" << dendl; | |
3142 | inode->set_async_err(r); | |
3143 | } | |
3144 | } | |
3145 | }; | |
3146 | ||
3147 | ||
3148 | /**** | |
3149 | * caps | |
3150 | */ | |
3151 | ||
3152 | void Client::get_cap_ref(Inode *in, int cap) | |
3153 | { | |
3154 | if ((cap & CEPH_CAP_FILE_BUFFER) && | |
3155 | in->cap_refs[CEPH_CAP_FILE_BUFFER] == 0) { | |
11fdf7f2 | 3156 | ldout(cct, 5) << __func__ << " got first FILE_BUFFER ref on " << *in << dendl; |
7c673cae FG |
3157 | in->get(); |
3158 | } | |
3159 | if ((cap & CEPH_CAP_FILE_CACHE) && | |
3160 | in->cap_refs[CEPH_CAP_FILE_CACHE] == 0) { | |
11fdf7f2 | 3161 | ldout(cct, 5) << __func__ << " got first FILE_CACHE ref on " << *in << dendl; |
7c673cae FG |
3162 | in->get(); |
3163 | } | |
3164 | in->get_cap_ref(cap); | |
3165 | } | |
3166 | ||
3167 | void Client::put_cap_ref(Inode *in, int cap) | |
3168 | { | |
3169 | int last = in->put_cap_ref(cap); | |
3170 | if (last) { | |
3171 | int put_nref = 0; | |
3172 | int drop = last & ~in->caps_issued(); | |
3173 | if (in->snapid == CEPH_NOSNAP) { | |
3174 | if ((last & CEPH_CAP_FILE_WR) && | |
3175 | !in->cap_snaps.empty() && | |
3176 | in->cap_snaps.rbegin()->second.writing) { | |
11fdf7f2 | 3177 | ldout(cct, 10) << __func__ << " finishing pending cap_snap on " << *in << dendl; |
7c673cae FG |
3178 | in->cap_snaps.rbegin()->second.writing = 0; |
3179 | finish_cap_snap(in, in->cap_snaps.rbegin()->second, get_caps_used(in)); | |
3180 | signal_cond_list(in->waitfor_caps); // wake up blocked sync writers | |
3181 | } | |
3182 | if (last & CEPH_CAP_FILE_BUFFER) { | |
3183 | for (auto &p : in->cap_snaps) | |
3184 | p.second.dirty_data = 0; | |
3185 | signal_cond_list(in->waitfor_commit); | |
11fdf7f2 | 3186 | ldout(cct, 5) << __func__ << " dropped last FILE_BUFFER ref on " << *in << dendl; |
7c673cae FG |
3187 | ++put_nref; |
3188 | } | |
3189 | } | |
3190 | if (last & CEPH_CAP_FILE_CACHE) { | |
11fdf7f2 | 3191 | ldout(cct, 5) << __func__ << " dropped last FILE_CACHE ref on " << *in << dendl; |
7c673cae FG |
3192 | ++put_nref; |
3193 | } | |
3194 | if (drop) | |
3195 | check_caps(in, 0); | |
3196 | if (put_nref) | |
3197 | put_inode(in, put_nref); | |
3198 | } | |
3199 | } | |
3200 | ||
3201 | int Client::get_caps(Inode *in, int need, int want, int *phave, loff_t endoff) | |
3202 | { | |
3203 | int r = check_pool_perm(in, need); | |
3204 | if (r < 0) | |
3205 | return r; | |
3206 | ||
3207 | while (1) { | |
3208 | int file_wanted = in->caps_file_wanted(); | |
3209 | if ((file_wanted & need) != need) { | |
3210 | ldout(cct, 10) << "get_caps " << *in << " need " << ccap_string(need) | |
3211 | << " file_wanted " << ccap_string(file_wanted) << ", EBADF " | |
3212 | << dendl; | |
3213 | return -EBADF; | |
3214 | } | |
3215 | ||
3216 | int implemented; | |
3217 | int have = in->caps_issued(&implemented); | |
3218 | ||
3219 | bool waitfor_caps = false; | |
3220 | bool waitfor_commit = false; | |
3221 | ||
3222 | if (have & need & CEPH_CAP_FILE_WR) { | |
3223 | if (endoff > 0 && | |
3224 | (endoff >= (loff_t)in->max_size || | |
3225 | endoff > (loff_t)(in->size << 1)) && | |
3226 | endoff > (loff_t)in->wanted_max_size) { | |
3227 | ldout(cct, 10) << "wanted_max_size " << in->wanted_max_size << " -> " << endoff << dendl; | |
3228 | in->wanted_max_size = endoff; | |
3229 | check_caps(in, 0); | |
3230 | } | |
3231 | ||
3232 | if (endoff >= 0 && endoff > (loff_t)in->max_size) { | |
3233 | ldout(cct, 10) << "waiting on max_size, endoff " << endoff << " max_size " << in->max_size << " on " << *in << dendl; | |
3234 | waitfor_caps = true; | |
3235 | } | |
3236 | if (!in->cap_snaps.empty()) { | |
3237 | if (in->cap_snaps.rbegin()->second.writing) { | |
3238 | ldout(cct, 10) << "waiting on cap_snap write to complete" << dendl; | |
3239 | waitfor_caps = true; | |
3240 | } | |
3241 | for (auto &p : in->cap_snaps) { | |
3242 | if (p.second.dirty_data) { | |
3243 | waitfor_commit = true; | |
3244 | break; | |
3245 | } | |
3246 | } | |
3247 | if (waitfor_commit) { | |
3248 | _flush(in, new C_Client_FlushComplete(this, in)); | |
3249 | ldout(cct, 10) << "waiting for WRBUFFER to get dropped" << dendl; | |
3250 | } | |
3251 | } | |
3252 | } | |
3253 | ||
3254 | if (!waitfor_caps && !waitfor_commit) { | |
3255 | if ((have & need) == need) { | |
7c673cae FG |
3256 | int revoking = implemented & ~have; |
3257 | ldout(cct, 10) << "get_caps " << *in << " have " << ccap_string(have) | |
3258 | << " need " << ccap_string(need) << " want " << ccap_string(want) | |
c07f9fc5 | 3259 | << " revoking " << ccap_string(revoking) |
7c673cae | 3260 | << dendl; |
c07f9fc5 | 3261 | if ((revoking & want) == 0) { |
7c673cae FG |
3262 | *phave = need | (have & want); |
3263 | in->get_cap_ref(need); | |
3264 | return 0; | |
3265 | } | |
3266 | } | |
3267 | ldout(cct, 10) << "waiting for caps " << *in << " need " << ccap_string(need) << " want " << ccap_string(want) << dendl; | |
3268 | waitfor_caps = true; | |
3269 | } | |
3270 | ||
3271 | if ((need & CEPH_CAP_FILE_WR) && in->auth_cap && | |
3272 | in->auth_cap->session->readonly) | |
3273 | return -EROFS; | |
3274 | ||
3275 | if (in->flags & I_CAP_DROPPED) { | |
3276 | int mds_wanted = in->caps_mds_wanted(); | |
3277 | if ((mds_wanted & need) != need) { | |
3278 | int ret = _renew_caps(in); | |
3279 | if (ret < 0) | |
3280 | return ret; | |
3281 | continue; | |
3282 | } | |
a8e16298 | 3283 | if (!(file_wanted & ~mds_wanted)) |
7c673cae | 3284 | in->flags &= ~I_CAP_DROPPED; |
7c673cae FG |
3285 | } |
3286 | ||
3287 | if (waitfor_caps) | |
3288 | wait_on_list(in->waitfor_caps); | |
3289 | else if (waitfor_commit) | |
3290 | wait_on_list(in->waitfor_commit); | |
3291 | } | |
3292 | } | |
3293 | ||
3294 | int Client::get_caps_used(Inode *in) | |
3295 | { | |
3296 | unsigned used = in->caps_used(); | |
3297 | if (!(used & CEPH_CAP_FILE_CACHE) && | |
3298 | !objectcacher->set_is_empty(&in->oset)) | |
3299 | used |= CEPH_CAP_FILE_CACHE; | |
3300 | return used; | |
3301 | } | |
3302 | ||
3303 | void Client::cap_delay_requeue(Inode *in) | |
3304 | { | |
11fdf7f2 | 3305 | ldout(cct, 10) << __func__ << " on " << *in << dendl; |
7c673cae FG |
3306 | in->hold_caps_until = ceph_clock_now(); |
3307 | in->hold_caps_until += cct->_conf->client_caps_release_delay; | |
28e407b8 | 3308 | delayed_list.push_back(&in->delay_cap_item); |
7c673cae FG |
3309 | } |
3310 | ||
3311 | void Client::send_cap(Inode *in, MetaSession *session, Cap *cap, | |
3312 | bool sync, int used, int want, int retain, | |
3313 | int flush, ceph_tid_t flush_tid) | |
3314 | { | |
3315 | int held = cap->issued | cap->implemented; | |
3316 | int revoking = cap->implemented & ~cap->issued; | |
3317 | retain &= ~revoking; | |
3318 | int dropping = cap->issued & ~retain; | |
3319 | int op = CEPH_CAP_OP_UPDATE; | |
3320 | ||
11fdf7f2 | 3321 | ldout(cct, 10) << __func__ << " " << *in |
7c673cae FG |
3322 | << " mds." << session->mds_num << " seq " << cap->seq |
3323 | << (sync ? " sync " : " async ") | |
3324 | << " used " << ccap_string(used) | |
3325 | << " want " << ccap_string(want) | |
3326 | << " flush " << ccap_string(flush) | |
3327 | << " retain " << ccap_string(retain) | |
3328 | << " held "<< ccap_string(held) | |
3329 | << " revoking " << ccap_string(revoking) | |
3330 | << " dropping " << ccap_string(dropping) | |
3331 | << dendl; | |
3332 | ||
3333 | if (cct->_conf->client_inject_release_failure && revoking) { | |
3334 | const int would_have_issued = cap->issued & retain; | |
3335 | const int would_have_implemented = cap->implemented & (cap->issued | used); | |
3336 | // Simulated bug: | |
3337 | // - tell the server we think issued is whatever they issued plus whatever we implemented | |
3338 | // - leave what we have implemented in place | |
3339 | ldout(cct, 20) << __func__ << " injecting failure to release caps" << dendl; | |
3340 | cap->issued = cap->issued | cap->implemented; | |
3341 | ||
3342 | // Make an exception for revoking xattr caps: we are injecting | |
3343 | // failure to release other caps, but allow xattr because client | |
3344 | // will block on xattr ops if it can't release these to MDS (#9800) | |
3345 | const int xattr_mask = CEPH_CAP_XATTR_SHARED | CEPH_CAP_XATTR_EXCL; | |
3346 | cap->issued ^= xattr_mask & revoking; | |
3347 | cap->implemented ^= xattr_mask & revoking; | |
3348 | ||
3349 | ldout(cct, 20) << __func__ << " issued " << ccap_string(cap->issued) << " vs " << ccap_string(would_have_issued) << dendl; | |
3350 | ldout(cct, 20) << __func__ << " implemented " << ccap_string(cap->implemented) << " vs " << ccap_string(would_have_implemented) << dendl; | |
3351 | } else { | |
3352 | // Normal behaviour | |
3353 | cap->issued &= retain; | |
3354 | cap->implemented &= cap->issued | used; | |
3355 | } | |
3356 | ||
3357 | snapid_t follows = 0; | |
3358 | ||
3359 | if (flush) | |
3360 | follows = in->snaprealm->get_snap_context().seq; | |
3361 | ||
11fdf7f2 | 3362 | auto m = MClientCaps::create(op, |
7c673cae FG |
3363 | in->ino, |
3364 | 0, | |
3365 | cap->cap_id, cap->seq, | |
3366 | cap->implemented, | |
3367 | want, | |
3368 | flush, | |
3369 | cap->mseq, | |
3370 | cap_epoch_barrier); | |
3371 | m->caller_uid = in->cap_dirtier_uid; | |
3372 | m->caller_gid = in->cap_dirtier_gid; | |
3373 | ||
3374 | m->head.issue_seq = cap->issue_seq; | |
3375 | m->set_tid(flush_tid); | |
3376 | ||
3377 | m->head.uid = in->uid; | |
3378 | m->head.gid = in->gid; | |
3379 | m->head.mode = in->mode; | |
3380 | ||
3381 | m->head.nlink = in->nlink; | |
3382 | ||
3383 | if (flush & CEPH_CAP_XATTR_EXCL) { | |
11fdf7f2 | 3384 | encode(in->xattrs, m->xattrbl); |
7c673cae FG |
3385 | m->head.xattr_version = in->xattr_version; |
3386 | } | |
3387 | ||
3388 | m->size = in->size; | |
3389 | m->max_size = in->max_size; | |
3390 | m->truncate_seq = in->truncate_seq; | |
3391 | m->truncate_size = in->truncate_size; | |
3392 | m->mtime = in->mtime; | |
3393 | m->atime = in->atime; | |
3394 | m->ctime = in->ctime; | |
3395 | m->btime = in->btime; | |
3396 | m->time_warp_seq = in->time_warp_seq; | |
3397 | m->change_attr = in->change_attr; | |
3398 | if (sync) | |
11fdf7f2 TL |
3399 | m->flags |= MClientCaps::FLAG_SYNC; |
3400 | if (!in->cap_snaps.empty()) | |
3401 | m->flags |= MClientCaps::FLAG_PENDING_CAPSNAP; | |
7c673cae FG |
3402 | |
3403 | if (flush & CEPH_CAP_FILE_WR) { | |
3404 | m->inline_version = in->inline_version; | |
3405 | m->inline_data = in->inline_data; | |
3406 | } | |
3407 | ||
3408 | in->reported_size = in->size; | |
3409 | m->set_snap_follows(follows); | |
3410 | cap->wanted = want; | |
3411 | if (cap == in->auth_cap) { | |
3412 | m->set_max_size(in->wanted_max_size); | |
3413 | in->requested_max_size = in->wanted_max_size; | |
3414 | ldout(cct, 15) << "auth cap, setting max_size = " << in->requested_max_size << dendl; | |
3415 | } | |
3416 | ||
3417 | if (!session->flushing_caps_tids.empty()) | |
3418 | m->set_oldest_flush_tid(*session->flushing_caps_tids.begin()); | |
3419 | ||
11fdf7f2 | 3420 | session->con->send_message2(std::move(m)); |
7c673cae FG |
3421 | } |
3422 | ||
31f18b77 FG |
3423 | static bool is_max_size_approaching(Inode *in) |
3424 | { | |
3425 | /* mds will adjust max size according to the reported size */ | |
3426 | if (in->flushing_caps & CEPH_CAP_FILE_WR) | |
3427 | return false; | |
3428 | if (in->size >= in->max_size) | |
3429 | return true; | |
3430 | /* half of previous max_size increment has been used */ | |
3431 | if (in->max_size > in->reported_size && | |
3432 | (in->size << 1) >= in->max_size + in->reported_size) | |
3433 | return true; | |
3434 | return false; | |
3435 | } | |
7c673cae | 3436 | |
11fdf7f2 TL |
3437 | static int adjust_caps_used_for_lazyio(int used, int issued, int implemented) |
3438 | { | |
3439 | if (!(used & (CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_BUFFER))) | |
3440 | return used; | |
3441 | if (!(implemented & CEPH_CAP_FILE_LAZYIO)) | |
3442 | return used; | |
3443 | ||
3444 | if (issued & CEPH_CAP_FILE_LAZYIO) { | |
3445 | if (!(issued & CEPH_CAP_FILE_CACHE)) { | |
3446 | used &= ~CEPH_CAP_FILE_CACHE; | |
3447 | used |= CEPH_CAP_FILE_LAZYIO; | |
3448 | } | |
3449 | if (!(issued & CEPH_CAP_FILE_BUFFER)) { | |
3450 | used &= ~CEPH_CAP_FILE_BUFFER; | |
3451 | used |= CEPH_CAP_FILE_LAZYIO; | |
3452 | } | |
3453 | } else { | |
3454 | if (!(implemented & CEPH_CAP_FILE_CACHE)) { | |
3455 | used &= ~CEPH_CAP_FILE_CACHE; | |
3456 | used |= CEPH_CAP_FILE_LAZYIO; | |
3457 | } | |
3458 | if (!(implemented & CEPH_CAP_FILE_BUFFER)) { | |
3459 | used &= ~CEPH_CAP_FILE_BUFFER; | |
3460 | used |= CEPH_CAP_FILE_LAZYIO; | |
3461 | } | |
3462 | } | |
3463 | return used; | |
3464 | } | |
3465 | ||
7c673cae FG |
3466 | /** |
3467 | * check_caps | |
3468 | * | |
3469 | * Examine currently used and wanted versus held caps. Release, flush or ack | |
3470 | * revoked caps to the MDS as appropriate. | |
3471 | * | |
3472 | * @param in the inode to check | |
3473 | * @param flags flags to apply to cap check | |
3474 | */ | |
3475 | void Client::check_caps(Inode *in, unsigned flags) | |
3476 | { | |
3477 | unsigned wanted = in->caps_wanted(); | |
3478 | unsigned used = get_caps_used(in); | |
3479 | unsigned cap_used; | |
3480 | ||
7c673cae FG |
3481 | int implemented; |
3482 | int issued = in->caps_issued(&implemented); | |
3483 | int revoking = implemented & ~issued; | |
3484 | ||
11fdf7f2 TL |
3485 | int orig_used = used; |
3486 | used = adjust_caps_used_for_lazyio(used, issued, implemented); | |
3487 | ||
7c673cae | 3488 | int retain = wanted | used | CEPH_CAP_PIN; |
a8e16298 TL |
3489 | if (!unmounting && in->nlink > 0) { |
3490 | if (wanted) { | |
7c673cae | 3491 | retain |= CEPH_CAP_ANY; |
a8e16298 TL |
3492 | } else if (in->is_dir() && |
3493 | (issued & CEPH_CAP_FILE_SHARED) && | |
3494 | (in->flags & I_COMPLETE)) { | |
3495 | // we do this here because we don't want to drop to Fs (and then | |
3496 | // drop the Fs if we do a create!) if that alone makes us send lookups | |
3497 | // to the MDS. Doing it in in->caps_wanted() has knock-on effects elsewhere | |
3498 | wanted = CEPH_CAP_ANY_SHARED | CEPH_CAP_FILE_EXCL; | |
3499 | retain |= wanted; | |
3500 | } else { | |
7c673cae | 3501 | retain |= CEPH_CAP_ANY_SHARED; |
a8e16298 TL |
3502 | // keep RD only if we didn't have the file open RW, |
3503 | // because then the mds would revoke it anyway to | |
3504 | // journal max_size=0. | |
3505 | if (in->max_size == 0) | |
3506 | retain |= CEPH_CAP_ANY_RD; | |
3507 | } | |
7c673cae FG |
3508 | } |
3509 | ||
11fdf7f2 | 3510 | ldout(cct, 10) << __func__ << " on " << *in |
7c673cae FG |
3511 | << " wanted " << ccap_string(wanted) |
3512 | << " used " << ccap_string(used) | |
3513 | << " issued " << ccap_string(issued) | |
3514 | << " revoking " << ccap_string(revoking) | |
3515 | << " flags=" << flags | |
3516 | << dendl; | |
3517 | ||
3518 | if (in->snapid != CEPH_NOSNAP) | |
3519 | return; //snap caps last forever, can't write | |
3520 | ||
3521 | if (in->caps.empty()) | |
3522 | return; // guard if at end of func | |
3523 | ||
11fdf7f2 TL |
3524 | if (!(orig_used & CEPH_CAP_FILE_BUFFER) && |
3525 | (revoking & used & (CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_LAZYIO))) { | |
94b18763 | 3526 | if (_release(in)) |
11fdf7f2 | 3527 | used &= ~(CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_LAZYIO); |
94b18763 | 3528 | } |
7c673cae FG |
3529 | |
3530 | if (!in->cap_snaps.empty()) | |
3531 | flush_snaps(in); | |
3532 | ||
11fdf7f2 TL |
3533 | for (auto &p : in->caps) { |
3534 | mds_rank_t mds = p.first; | |
3535 | Cap &cap = p.second; | |
7c673cae | 3536 | |
11fdf7f2 | 3537 | MetaSession *session = &mds_sessions.at(mds); |
7c673cae FG |
3538 | |
3539 | cap_used = used; | |
11fdf7f2 | 3540 | if (in->auth_cap && &cap != in->auth_cap) |
7c673cae FG |
3541 | cap_used &= ~in->auth_cap->issued; |
3542 | ||
11fdf7f2 | 3543 | revoking = cap.implemented & ~cap.issued; |
7c673cae FG |
3544 | |
3545 | ldout(cct, 10) << " cap mds." << mds | |
11fdf7f2 TL |
3546 | << " issued " << ccap_string(cap.issued) |
3547 | << " implemented " << ccap_string(cap.implemented) | |
7c673cae FG |
3548 | << " revoking " << ccap_string(revoking) << dendl; |
3549 | ||
3550 | if (in->wanted_max_size > in->max_size && | |
3551 | in->wanted_max_size > in->requested_max_size && | |
11fdf7f2 | 3552 | &cap == in->auth_cap) |
7c673cae FG |
3553 | goto ack; |
3554 | ||
3555 | /* approaching file_max? */ | |
11fdf7f2 TL |
3556 | if ((cap.issued & CEPH_CAP_FILE_WR) && |
3557 | &cap == in->auth_cap && | |
31f18b77 | 3558 | is_max_size_approaching(in)) { |
7c673cae | 3559 | ldout(cct, 10) << "size " << in->size << " approaching max_size " << in->max_size |
31f18b77 | 3560 | << ", reported " << in->reported_size << dendl; |
7c673cae FG |
3561 | goto ack; |
3562 | } | |
3563 | ||
3564 | /* completed revocation? */ | |
3565 | if (revoking && (revoking & cap_used) == 0) { | |
11fdf7f2 | 3566 | ldout(cct, 10) << "completed revocation of " << ccap_string(cap.implemented & ~cap.issued) << dendl; |
7c673cae FG |
3567 | goto ack; |
3568 | } | |
3569 | ||
3570 | /* want more caps from mds? */ | |
11fdf7f2 | 3571 | if (wanted & ~(cap.wanted | cap.issued)) |
7c673cae FG |
3572 | goto ack; |
3573 | ||
3574 | if (!revoking && unmounting && (cap_used == 0)) | |
3575 | goto ack; | |
3576 | ||
11fdf7f2 | 3577 | if ((cap.issued & ~retain) == 0 && // and we don't have anything we wouldn't like |
a8e16298 | 3578 | !in->dirty_caps) // and we have no dirty caps |
7c673cae FG |
3579 | continue; |
3580 | ||
11fdf7f2 | 3581 | if (!(flags & CHECK_CAPS_NODELAY)) { |
7c673cae | 3582 | ldout(cct, 10) << "delaying cap release" << dendl; |
11fdf7f2 | 3583 | cap_delay_requeue(in); |
7c673cae FG |
3584 | continue; |
3585 | } | |
3586 | ||
3587 | ack: | |
3588 | // re-send old cap/snapcap flushes first. | |
3589 | if (session->mds_state >= MDSMap::STATE_RECONNECT && | |
3590 | session->mds_state < MDSMap::STATE_ACTIVE && | |
3591 | session->early_flushing_caps.count(in) == 0) { | |
3592 | ldout(cct, 20) << " reflushing caps (check_caps) on " << *in | |
3593 | << " to mds." << session->mds_num << dendl; | |
3594 | session->early_flushing_caps.insert(in); | |
3595 | if (in->cap_snaps.size()) | |
3596 | flush_snaps(in, true); | |
3597 | if (in->flushing_caps) | |
3598 | flush_caps(in, session, flags & CHECK_CAPS_SYNCHRONOUS); | |
3599 | } | |
3600 | ||
3601 | int flushing; | |
3602 | ceph_tid_t flush_tid; | |
11fdf7f2 | 3603 | if (in->auth_cap == &cap && in->dirty_caps) { |
7c673cae FG |
3604 | flushing = mark_caps_flushing(in, &flush_tid); |
3605 | } else { | |
3606 | flushing = 0; | |
3607 | flush_tid = 0; | |
3608 | } | |
3609 | ||
11fdf7f2 | 3610 | send_cap(in, session, &cap, flags & CHECK_CAPS_SYNCHRONOUS, cap_used, wanted, |
7c673cae FG |
3611 | retain, flushing, flush_tid); |
3612 | } | |
3613 | } | |
3614 | ||
3615 | ||
3616 | void Client::queue_cap_snap(Inode *in, SnapContext& old_snapc) | |
3617 | { | |
3618 | int used = get_caps_used(in); | |
3619 | int dirty = in->caps_dirty(); | |
11fdf7f2 | 3620 | ldout(cct, 10) << __func__ << " " << *in << " snapc " << old_snapc << " used " << ccap_string(used) << dendl; |
7c673cae FG |
3621 | |
3622 | if (in->cap_snaps.size() && | |
3623 | in->cap_snaps.rbegin()->second.writing) { | |
11fdf7f2 | 3624 | ldout(cct, 10) << __func__ << " already have pending cap_snap on " << *in << dendl; |
7c673cae FG |
3625 | return; |
3626 | } else if (in->caps_dirty() || | |
3627 | (used & CEPH_CAP_FILE_WR) || | |
3628 | (dirty & CEPH_CAP_ANY_WR)) { | |
3629 | const auto &capsnapem = in->cap_snaps.emplace(std::piecewise_construct, std::make_tuple(old_snapc.seq), std::make_tuple(in)); | |
11fdf7f2 | 3630 | ceph_assert(capsnapem.second); /* element inserted */ |
7c673cae FG |
3631 | CapSnap &capsnap = capsnapem.first->second; |
3632 | capsnap.context = old_snapc; | |
3633 | capsnap.issued = in->caps_issued(); | |
3634 | capsnap.dirty = in->caps_dirty(); | |
3635 | ||
3636 | capsnap.dirty_data = (used & CEPH_CAP_FILE_BUFFER); | |
3637 | ||
3638 | capsnap.uid = in->uid; | |
3639 | capsnap.gid = in->gid; | |
3640 | capsnap.mode = in->mode; | |
3641 | capsnap.btime = in->btime; | |
3642 | capsnap.xattrs = in->xattrs; | |
3643 | capsnap.xattr_version = in->xattr_version; | |
11fdf7f2 TL |
3644 | capsnap.cap_dirtier_uid = in->cap_dirtier_uid; |
3645 | capsnap.cap_dirtier_gid = in->cap_dirtier_gid; | |
7c673cae FG |
3646 | |
3647 | if (used & CEPH_CAP_FILE_WR) { | |
11fdf7f2 | 3648 | ldout(cct, 10) << __func__ << " WR used on " << *in << dendl; |
7c673cae FG |
3649 | capsnap.writing = 1; |
3650 | } else { | |
3651 | finish_cap_snap(in, capsnap, used); | |
3652 | } | |
3653 | } else { | |
11fdf7f2 | 3654 | ldout(cct, 10) << __func__ << " not dirty|writing on " << *in << dendl; |
7c673cae FG |
3655 | } |
3656 | } | |
3657 | ||
3658 | void Client::finish_cap_snap(Inode *in, CapSnap &capsnap, int used) | |
3659 | { | |
11fdf7f2 | 3660 | ldout(cct, 10) << __func__ << " " << *in << " capsnap " << (void *)&capsnap << " used " << ccap_string(used) << dendl; |
7c673cae FG |
3661 | capsnap.size = in->size; |
3662 | capsnap.mtime = in->mtime; | |
3663 | capsnap.atime = in->atime; | |
3664 | capsnap.ctime = in->ctime; | |
3665 | capsnap.time_warp_seq = in->time_warp_seq; | |
3666 | capsnap.change_attr = in->change_attr; | |
7c673cae FG |
3667 | capsnap.dirty |= in->caps_dirty(); |
3668 | ||
11fdf7f2 TL |
3669 | /* Only reset it if it wasn't set before */ |
3670 | if (capsnap.cap_dirtier_uid == -1) { | |
3671 | capsnap.cap_dirtier_uid = in->cap_dirtier_uid; | |
3672 | capsnap.cap_dirtier_gid = in->cap_dirtier_gid; | |
3673 | } | |
3674 | ||
7c673cae FG |
3675 | if (capsnap.dirty & CEPH_CAP_FILE_WR) { |
3676 | capsnap.inline_data = in->inline_data; | |
3677 | capsnap.inline_version = in->inline_version; | |
3678 | } | |
3679 | ||
3680 | if (used & CEPH_CAP_FILE_BUFFER) { | |
11fdf7f2 | 3681 | ldout(cct, 10) << __func__ << " " << *in << " cap_snap " << &capsnap << " used " << used |
7c673cae FG |
3682 | << " WRBUFFER, delaying" << dendl; |
3683 | } else { | |
3684 | capsnap.dirty_data = 0; | |
3685 | flush_snaps(in); | |
3686 | } | |
3687 | } | |
3688 | ||
3689 | void Client::_flushed_cap_snap(Inode *in, snapid_t seq) | |
3690 | { | |
11fdf7f2 | 3691 | ldout(cct, 10) << __func__ << " seq " << seq << " on " << *in << dendl; |
7c673cae FG |
3692 | in->cap_snaps.at(seq).dirty_data = 0; |
3693 | flush_snaps(in); | |
3694 | } | |
3695 | ||
3696 | void Client::flush_snaps(Inode *in, bool all_again) | |
3697 | { | |
3698 | ldout(cct, 10) << "flush_snaps on " << *in << " all_again " << all_again << dendl; | |
11fdf7f2 | 3699 | ceph_assert(in->cap_snaps.size()); |
7c673cae FG |
3700 | |
3701 | // pick auth mds | |
11fdf7f2 | 3702 | ceph_assert(in->auth_cap); |
7c673cae FG |
3703 | MetaSession *session = in->auth_cap->session; |
3704 | int mseq = in->auth_cap->mseq; | |
3705 | ||
3706 | for (auto &p : in->cap_snaps) { | |
3707 | CapSnap &capsnap = p.second; | |
3708 | if (!all_again) { | |
3709 | // only flush once per session | |
3710 | if (capsnap.flush_tid > 0) | |
3711 | continue; | |
3712 | } | |
3713 | ||
3714 | ldout(cct, 10) << "flush_snaps mds." << session->mds_num | |
3715 | << " follows " << p.first | |
3716 | << " size " << capsnap.size | |
3717 | << " mtime " << capsnap.mtime | |
3718 | << " dirty_data=" << capsnap.dirty_data | |
3719 | << " writing=" << capsnap.writing | |
3720 | << " on " << *in << dendl; | |
3721 | if (capsnap.dirty_data || capsnap.writing) | |
3722 | continue; | |
3723 | ||
3724 | if (capsnap.flush_tid == 0) { | |
3725 | capsnap.flush_tid = ++last_flush_tid; | |
3726 | if (!in->flushing_cap_item.is_on_list()) | |
3727 | session->flushing_caps.push_back(&in->flushing_cap_item); | |
3728 | session->flushing_caps_tids.insert(capsnap.flush_tid); | |
3729 | } | |
3730 | ||
11fdf7f2 | 3731 | auto m = MClientCaps::create(CEPH_CAP_OP_FLUSHSNAP, in->ino, in->snaprealm->ino, 0, mseq, |
7c673cae | 3732 | cap_epoch_barrier); |
11fdf7f2 TL |
3733 | m->caller_uid = capsnap.cap_dirtier_uid; |
3734 | m->caller_gid = capsnap.cap_dirtier_gid; | |
7c673cae FG |
3735 | |
3736 | m->set_client_tid(capsnap.flush_tid); | |
3737 | m->head.snap_follows = p.first; | |
3738 | ||
3739 | m->head.caps = capsnap.issued; | |
3740 | m->head.dirty = capsnap.dirty; | |
3741 | ||
3742 | m->head.uid = capsnap.uid; | |
3743 | m->head.gid = capsnap.gid; | |
3744 | m->head.mode = capsnap.mode; | |
3745 | m->btime = capsnap.btime; | |
3746 | ||
3747 | m->size = capsnap.size; | |
3748 | ||
3749 | m->head.xattr_version = capsnap.xattr_version; | |
11fdf7f2 | 3750 | encode(capsnap.xattrs, m->xattrbl); |
7c673cae FG |
3751 | |
3752 | m->ctime = capsnap.ctime; | |
3753 | m->btime = capsnap.btime; | |
3754 | m->mtime = capsnap.mtime; | |
3755 | m->atime = capsnap.atime; | |
3756 | m->time_warp_seq = capsnap.time_warp_seq; | |
3757 | m->change_attr = capsnap.change_attr; | |
3758 | ||
3759 | if (capsnap.dirty & CEPH_CAP_FILE_WR) { | |
3760 | m->inline_version = in->inline_version; | |
3761 | m->inline_data = in->inline_data; | |
3762 | } | |
3763 | ||
11fdf7f2 | 3764 | ceph_assert(!session->flushing_caps_tids.empty()); |
7c673cae FG |
3765 | m->set_oldest_flush_tid(*session->flushing_caps_tids.begin()); |
3766 | ||
11fdf7f2 | 3767 | session->con->send_message2(std::move(m)); |
7c673cae FG |
3768 | } |
3769 | } | |
3770 | ||
3771 | ||
3772 | ||
3773 | void Client::wait_on_list(list<Cond*>& ls) | |
3774 | { | |
3775 | Cond cond; | |
3776 | ls.push_back(&cond); | |
3777 | cond.Wait(client_lock); | |
3778 | ls.remove(&cond); | |
3779 | } | |
3780 | ||
3781 | void Client::signal_cond_list(list<Cond*>& ls) | |
3782 | { | |
3783 | for (list<Cond*>::iterator it = ls.begin(); it != ls.end(); ++it) | |
3784 | (*it)->Signal(); | |
3785 | } | |
3786 | ||
3787 | void Client::wait_on_context_list(list<Context*>& ls) | |
3788 | { | |
3789 | Cond cond; | |
3790 | bool done = false; | |
3791 | int r; | |
3792 | ls.push_back(new C_Cond(&cond, &done, &r)); | |
3793 | while (!done) | |
3794 | cond.Wait(client_lock); | |
3795 | } | |
3796 | ||
3797 | void Client::signal_context_list(list<Context*>& ls) | |
3798 | { | |
3799 | while (!ls.empty()) { | |
3800 | ls.front()->complete(0); | |
3801 | ls.pop_front(); | |
3802 | } | |
3803 | } | |
3804 | ||
a8e16298 | 3805 | void Client::wake_up_session_caps(MetaSession *s, bool reconnect) |
7c673cae | 3806 | { |
11fdf7f2 TL |
3807 | for (const auto &cap : s->caps) { |
3808 | auto &in = cap->inode; | |
a8e16298 | 3809 | if (reconnect) { |
11fdf7f2 TL |
3810 | in.requested_max_size = 0; |
3811 | in.wanted_max_size = 0; | |
a8e16298 TL |
3812 | } else { |
3813 | if (cap->gen < s->cap_gen) { | |
3814 | // mds did not re-issue stale cap. | |
3815 | cap->issued = cap->implemented = CEPH_CAP_PIN; | |
3816 | // make sure mds knows what we want. | |
11fdf7f2 TL |
3817 | if (in.caps_file_wanted() & ~cap->wanted) |
3818 | in.flags |= I_CAP_DROPPED; | |
a8e16298 TL |
3819 | } |
3820 | } | |
11fdf7f2 | 3821 | signal_cond_list(in.waitfor_caps); |
7c673cae FG |
3822 | } |
3823 | } | |
3824 | ||
3825 | ||
3826 | // flush dirty data (from objectcache) | |
3827 | ||
3828 | class C_Client_CacheInvalidate : public Context { | |
3829 | private: | |
3830 | Client *client; | |
3831 | vinodeno_t ino; | |
3832 | int64_t offset, length; | |
3833 | public: | |
3834 | C_Client_CacheInvalidate(Client *c, Inode *in, int64_t off, int64_t len) : | |
3835 | client(c), offset(off), length(len) { | |
3836 | if (client->use_faked_inos()) | |
3837 | ino = vinodeno_t(in->faked_ino, CEPH_NOSNAP); | |
3838 | else | |
3839 | ino = in->vino(); | |
3840 | } | |
3841 | void finish(int r) override { | |
3842 | // _async_invalidate takes the lock when it needs to, call this back from outside of lock. | |
11fdf7f2 | 3843 | ceph_assert(!client->client_lock.is_locked_by_me()); |
7c673cae FG |
3844 | client->_async_invalidate(ino, offset, length); |
3845 | } | |
3846 | }; | |
3847 | ||
3848 | void Client::_async_invalidate(vinodeno_t ino, int64_t off, int64_t len) | |
3849 | { | |
3850 | if (unmounting) | |
3851 | return; | |
11fdf7f2 | 3852 | ldout(cct, 10) << __func__ << " " << ino << " " << off << "~" << len << dendl; |
7c673cae FG |
3853 | ino_invalidate_cb(callback_handle, ino, off, len); |
3854 | } | |
3855 | ||
3856 | void Client::_schedule_invalidate_callback(Inode *in, int64_t off, int64_t len) { | |
3857 | ||
3858 | if (ino_invalidate_cb) | |
3859 | // we queue the invalidate, which calls the callback and decrements the ref | |
3860 | async_ino_invalidator.queue(new C_Client_CacheInvalidate(this, in, off, len)); | |
3861 | } | |
3862 | ||
3863 | void Client::_invalidate_inode_cache(Inode *in) | |
3864 | { | |
11fdf7f2 | 3865 | ldout(cct, 10) << __func__ << " " << *in << dendl; |
7c673cae FG |
3866 | |
3867 | // invalidate our userspace inode cache | |
94b18763 | 3868 | if (cct->_conf->client_oc) { |
7c673cae | 3869 | objectcacher->release_set(&in->oset); |
94b18763 FG |
3870 | if (!objectcacher->set_is_empty(&in->oset)) |
3871 | lderr(cct) << "failed to invalidate cache for " << *in << dendl; | |
3872 | } | |
7c673cae FG |
3873 | |
3874 | _schedule_invalidate_callback(in, 0, 0); | |
3875 | } | |
3876 | ||
3877 | void Client::_invalidate_inode_cache(Inode *in, int64_t off, int64_t len) | |
3878 | { | |
11fdf7f2 | 3879 | ldout(cct, 10) << __func__ << " " << *in << " " << off << "~" << len << dendl; |
7c673cae FG |
3880 | |
3881 | // invalidate our userspace inode cache | |
3882 | if (cct->_conf->client_oc) { | |
3883 | vector<ObjectExtent> ls; | |
3884 | Striper::file_to_extents(cct, in->ino, &in->layout, off, len, in->truncate_size, ls); | |
28e407b8 | 3885 | objectcacher->discard_writeback(&in->oset, ls, nullptr); |
7c673cae FG |
3886 | } |
3887 | ||
3888 | _schedule_invalidate_callback(in, off, len); | |
3889 | } | |
3890 | ||
3891 | bool Client::_release(Inode *in) | |
3892 | { | |
3893 | ldout(cct, 20) << "_release " << *in << dendl; | |
3894 | if (in->cap_refs[CEPH_CAP_FILE_CACHE] == 0) { | |
3895 | _invalidate_inode_cache(in); | |
3896 | return true; | |
3897 | } | |
3898 | return false; | |
3899 | } | |
3900 | ||
3901 | bool Client::_flush(Inode *in, Context *onfinish) | |
3902 | { | |
3903 | ldout(cct, 10) << "_flush " << *in << dendl; | |
3904 | ||
3905 | if (!in->oset.dirty_or_tx) { | |
3906 | ldout(cct, 10) << " nothing to flush" << dendl; | |
3907 | onfinish->complete(0); | |
3908 | return true; | |
3909 | } | |
3910 | ||
3911 | if (objecter->osdmap_pool_full(in->layout.pool_id)) { | |
1adf2230 | 3912 | ldout(cct, 8) << __func__ << ": FULL, purging for ENOSPC" << dendl; |
7c673cae FG |
3913 | objectcacher->purge_set(&in->oset); |
3914 | if (onfinish) { | |
3915 | onfinish->complete(-ENOSPC); | |
3916 | } | |
3917 | return true; | |
3918 | } | |
3919 | ||
3920 | return objectcacher->flush_set(&in->oset, onfinish); | |
3921 | } | |
3922 | ||
3923 | void Client::_flush_range(Inode *in, int64_t offset, uint64_t size) | |
3924 | { | |
11fdf7f2 | 3925 | ceph_assert(client_lock.is_locked()); |
7c673cae FG |
3926 | if (!in->oset.dirty_or_tx) { |
3927 | ldout(cct, 10) << " nothing to flush" << dendl; | |
3928 | return; | |
3929 | } | |
3930 | ||
11fdf7f2 | 3931 | C_SaferCond onflush("Client::_flush_range flock"); |
7c673cae | 3932 | bool ret = objectcacher->file_flush(&in->oset, &in->layout, in->snaprealm->get_snap_context(), |
11fdf7f2 | 3933 | offset, size, &onflush); |
7c673cae FG |
3934 | if (!ret) { |
3935 | // wait for flush | |
3936 | client_lock.Unlock(); | |
11fdf7f2 | 3937 | onflush.wait(); |
7c673cae FG |
3938 | client_lock.Lock(); |
3939 | } | |
3940 | } | |
3941 | ||
3942 | void Client::flush_set_callback(ObjectCacher::ObjectSet *oset) | |
3943 | { | |
11fdf7f2 TL |
3944 | // std::lock_guard l(client_lock); |
3945 | ceph_assert(client_lock.is_locked()); // will be called via dispatch() -> objecter -> ... | |
7c673cae | 3946 | Inode *in = static_cast<Inode *>(oset->parent); |
11fdf7f2 | 3947 | ceph_assert(in); |
7c673cae FG |
3948 | _flushed(in); |
3949 | } | |
3950 | ||
3951 | void Client::_flushed(Inode *in) | |
3952 | { | |
3953 | ldout(cct, 10) << "_flushed " << *in << dendl; | |
3954 | ||
3955 | put_cap_ref(in, CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_BUFFER); | |
3956 | } | |
3957 | ||
3958 | ||
3959 | ||
3960 | // checks common to add_update_cap, handle_cap_grant | |
11fdf7f2 | 3961 | void Client::check_cap_issue(Inode *in, unsigned issued) |
7c673cae FG |
3962 | { |
3963 | unsigned had = in->caps_issued(); | |
3964 | ||
3965 | if ((issued & CEPH_CAP_FILE_CACHE) && | |
3966 | !(had & CEPH_CAP_FILE_CACHE)) | |
3967 | in->cache_gen++; | |
3968 | ||
3969 | if ((issued & CEPH_CAP_FILE_SHARED) && | |
3970 | !(had & CEPH_CAP_FILE_SHARED)) { | |
3971 | in->shared_gen++; | |
3972 | ||
3973 | if (in->is_dir()) | |
3974 | clear_dir_complete_and_ordered(in, true); | |
3975 | } | |
3976 | } | |
3977 | ||
3978 | void Client::add_update_cap(Inode *in, MetaSession *mds_session, uint64_t cap_id, | |
a8e16298 TL |
3979 | unsigned issued, unsigned wanted, unsigned seq, unsigned mseq, |
3980 | inodeno_t realm, int flags, const UserPerm& cap_perms) | |
7c673cae | 3981 | { |
11fdf7f2 TL |
3982 | if (!in->is_any_caps()) { |
3983 | ceph_assert(in->snaprealm == 0); | |
3984 | in->snaprealm = get_snap_realm(realm); | |
3985 | in->snaprealm->inodes_with_caps.push_back(&in->snaprealm_item); | |
3986 | ldout(cct, 15) << __func__ << " first one, opened snaprealm " << in->snaprealm << dendl; | |
3987 | } else { | |
3988 | ceph_assert(in->snaprealm); | |
3989 | if ((flags & CEPH_CAP_FLAG_AUTH) && | |
3990 | realm != inodeno_t(-1) && in->snaprealm->ino != realm) { | |
3991 | in->snaprealm_item.remove_myself(); | |
3992 | auto oldrealm = in->snaprealm; | |
3993 | in->snaprealm = get_snap_realm(realm); | |
3994 | in->snaprealm->inodes_with_caps.push_back(&in->snaprealm_item); | |
3995 | put_snap_realm(oldrealm); | |
3996 | } | |
3997 | } | |
3998 | ||
7c673cae | 3999 | mds_rank_t mds = mds_session->mds_num; |
11fdf7f2 TL |
4000 | const auto &capem = in->caps.emplace(std::piecewise_construct, std::forward_as_tuple(mds), std::forward_as_tuple(*in, mds_session)); |
4001 | Cap &cap = capem.first->second; | |
4002 | if (!capem.second) { | |
4003 | if (cap.gen < mds_session->cap_gen) | |
4004 | cap.issued = cap.implemented = CEPH_CAP_PIN; | |
7c673cae FG |
4005 | |
4006 | /* | |
4007 | * auth mds of the inode changed. we received the cap export | |
4008 | * message, but still haven't received the cap import message. | |
4009 | * handle_cap_export() updated the new auth MDS' cap. | |
4010 | * | |
4011 | * "ceph_seq_cmp(seq, cap->seq) <= 0" means we are processing | |
4012 | * a message that was send before the cap import message. So | |
4013 | * don't remove caps. | |
4014 | */ | |
11fdf7f2 TL |
4015 | if (ceph_seq_cmp(seq, cap.seq) <= 0) { |
4016 | ceph_assert(&cap == in->auth_cap); | |
4017 | ceph_assert(cap.cap_id == cap_id); | |
4018 | seq = cap.seq; | |
4019 | mseq = cap.mseq; | |
4020 | issued |= cap.issued; | |
7c673cae FG |
4021 | flags |= CEPH_CAP_FLAG_AUTH; |
4022 | } | |
7c673cae FG |
4023 | } |
4024 | ||
11fdf7f2 | 4025 | check_cap_issue(in, issued); |
7c673cae FG |
4026 | |
4027 | if (flags & CEPH_CAP_FLAG_AUTH) { | |
11fdf7f2 | 4028 | if (in->auth_cap != &cap && |
7c673cae FG |
4029 | (!in->auth_cap || ceph_seq_cmp(in->auth_cap->mseq, mseq) < 0)) { |
4030 | if (in->auth_cap && in->flushing_cap_item.is_on_list()) { | |
11fdf7f2 | 4031 | ldout(cct, 10) << __func__ << " changing auth cap: " |
7c673cae FG |
4032 | << "add myself to new auth MDS' flushing caps list" << dendl; |
4033 | adjust_session_flushing_caps(in, in->auth_cap->session, mds_session); | |
4034 | } | |
11fdf7f2 | 4035 | in->auth_cap = ∩ |
7c673cae FG |
4036 | } |
4037 | } | |
4038 | ||
11fdf7f2 TL |
4039 | unsigned old_caps = cap.issued; |
4040 | cap.cap_id = cap_id; | |
4041 | cap.issued = issued; | |
4042 | cap.implemented |= issued; | |
4043 | if (ceph_seq_cmp(mseq, cap.mseq) > 0) | |
4044 | cap.wanted = wanted; | |
a8e16298 | 4045 | else |
11fdf7f2 TL |
4046 | cap.wanted |= wanted; |
4047 | cap.seq = seq; | |
4048 | cap.issue_seq = seq; | |
4049 | cap.mseq = mseq; | |
4050 | cap.gen = mds_session->cap_gen; | |
4051 | cap.latest_perms = cap_perms; | |
4052 | ldout(cct, 10) << __func__ << " issued " << ccap_string(old_caps) << " -> " << ccap_string(cap.issued) | |
4053 | << " from mds." << mds | |
4054 | << " on " << *in | |
4055 | << dendl; | |
4056 | ||
4057 | if ((issued & ~old_caps) && in->auth_cap == &cap) { | |
7c673cae | 4058 | // non-auth MDS is revoking the newly grant caps ? |
11fdf7f2 TL |
4059 | for (auto &p : in->caps) { |
4060 | if (&p.second == &cap) | |
7c673cae | 4061 | continue; |
11fdf7f2 | 4062 | if (p.second.implemented & ~p.second.issued & issued) { |
7c673cae FG |
4063 | check_caps(in, CHECK_CAPS_NODELAY); |
4064 | break; | |
4065 | } | |
4066 | } | |
4067 | } | |
4068 | ||
4069 | if (issued & ~old_caps) | |
4070 | signal_cond_list(in->waitfor_caps); | |
4071 | } | |
4072 | ||
4073 | void Client::remove_cap(Cap *cap, bool queue_release) | |
4074 | { | |
11fdf7f2 | 4075 | auto &in = cap->inode; |
7c673cae FG |
4076 | MetaSession *session = cap->session; |
4077 | mds_rank_t mds = cap->session->mds_num; | |
4078 | ||
11fdf7f2 | 4079 | ldout(cct, 10) << __func__ << " mds." << mds << " on " << in << dendl; |
7c673cae FG |
4080 | |
4081 | if (queue_release) { | |
4082 | session->enqueue_cap_release( | |
11fdf7f2 | 4083 | in.ino, |
7c673cae FG |
4084 | cap->cap_id, |
4085 | cap->issue_seq, | |
4086 | cap->mseq, | |
4087 | cap_epoch_barrier); | |
4088 | } | |
4089 | ||
11fdf7f2 TL |
4090 | if (in.auth_cap == cap) { |
4091 | if (in.flushing_cap_item.is_on_list()) { | |
7c673cae | 4092 | ldout(cct, 10) << " removing myself from flushing_cap list" << dendl; |
11fdf7f2 | 4093 | in.flushing_cap_item.remove_myself(); |
7c673cae | 4094 | } |
11fdf7f2 | 4095 | in.auth_cap = NULL; |
7c673cae | 4096 | } |
11fdf7f2 TL |
4097 | size_t n = in.caps.erase(mds); |
4098 | ceph_assert(n == 1); | |
7c673cae FG |
4099 | cap = nullptr; |
4100 | ||
11fdf7f2 TL |
4101 | if (!in.is_any_caps()) { |
4102 | ldout(cct, 15) << __func__ << " last one, closing snaprealm " << in.snaprealm << dendl; | |
4103 | in.snaprealm_item.remove_myself(); | |
4104 | put_snap_realm(in.snaprealm); | |
4105 | in.snaprealm = 0; | |
7c673cae FG |
4106 | } |
4107 | } | |
4108 | ||
4109 | void Client::remove_all_caps(Inode *in) | |
4110 | { | |
4111 | while (!in->caps.empty()) | |
11fdf7f2 | 4112 | remove_cap(&in->caps.begin()->second, true); |
7c673cae FG |
4113 | } |
4114 | ||
4115 | void Client::remove_session_caps(MetaSession *s) | |
4116 | { | |
11fdf7f2 | 4117 | ldout(cct, 10) << __func__ << " mds." << s->mds_num << dendl; |
7c673cae FG |
4118 | |
4119 | while (s->caps.size()) { | |
4120 | Cap *cap = *s->caps.begin(); | |
11fdf7f2 | 4121 | InodeRef in(&cap->inode); |
7c673cae FG |
4122 | bool dirty_caps = false, cap_snaps = false; |
4123 | if (in->auth_cap == cap) { | |
4124 | cap_snaps = !in->cap_snaps.empty(); | |
4125 | dirty_caps = in->dirty_caps | in->flushing_caps; | |
4126 | in->wanted_max_size = 0; | |
4127 | in->requested_max_size = 0; | |
7c673cae | 4128 | } |
a8e16298 TL |
4129 | if (cap->wanted | cap->issued) |
4130 | in->flags |= I_CAP_DROPPED; | |
7c673cae | 4131 | remove_cap(cap, false); |
7c673cae | 4132 | if (cap_snaps) { |
7c673cae FG |
4133 | in->cap_snaps.clear(); |
4134 | } | |
4135 | if (dirty_caps) { | |
11fdf7f2 | 4136 | lderr(cct) << __func__ << " still has dirty|flushing caps on " << *in << dendl; |
7c673cae FG |
4137 | if (in->flushing_caps) { |
4138 | num_flushing_caps--; | |
4139 | in->flushing_cap_tids.clear(); | |
4140 | } | |
4141 | in->flushing_caps = 0; | |
28e407b8 | 4142 | in->mark_caps_clean(); |
11fdf7f2 | 4143 | put_inode(in.get()); |
7c673cae | 4144 | } |
a8e16298 | 4145 | signal_cond_list(in->waitfor_caps); |
7c673cae FG |
4146 | } |
4147 | s->flushing_caps_tids.clear(); | |
4148 | sync_cond.Signal(); | |
4149 | } | |
4150 | ||
91327a77 | 4151 | int Client::_do_remount(bool retry_on_error) |
b32b8144 | 4152 | { |
11fdf7f2 | 4153 | uint64_t max_retries = g_conf().get_val<uint64_t>("mds_max_retries_on_remount_failure"); |
91327a77 | 4154 | |
b32b8144 FG |
4155 | errno = 0; |
4156 | int r = remount_cb(callback_handle); | |
91327a77 AA |
4157 | if (r == 0) { |
4158 | retries_on_invalidate = 0; | |
4159 | } else { | |
b32b8144 FG |
4160 | int e = errno; |
4161 | client_t whoami = get_nodeid(); | |
4162 | if (r == -1) { | |
4163 | lderr(cct) << | |
4164 | "failed to remount (to trim kernel dentries): " | |
4165 | "errno = " << e << " (" << strerror(e) << ")" << dendl; | |
4166 | } else { | |
4167 | lderr(cct) << | |
4168 | "failed to remount (to trim kernel dentries): " | |
4169 | "return code = " << r << dendl; | |
4170 | } | |
91327a77 | 4171 | bool should_abort = |
11fdf7f2 TL |
4172 | (cct->_conf.get_val<bool>("client_die_on_failed_remount") || |
4173 | cct->_conf.get_val<bool>("client_die_on_failed_dentry_invalidate")) && | |
91327a77 | 4174 | !(retry_on_error && (++retries_on_invalidate < max_retries)); |
b32b8144 FG |
4175 | if (should_abort && !unmounting) { |
4176 | lderr(cct) << "failed to remount for kernel dentry trimming; quitting!" << dendl; | |
4177 | ceph_abort(); | |
4178 | } | |
4179 | } | |
4180 | return r; | |
4181 | } | |
4182 | ||
7c673cae FG |
4183 | class C_Client_Remount : public Context { |
4184 | private: | |
4185 | Client *client; | |
4186 | public: | |
4187 | explicit C_Client_Remount(Client *c) : client(c) {} | |
4188 | void finish(int r) override { | |
11fdf7f2 | 4189 | ceph_assert(r == 0); |
91327a77 | 4190 | client->_do_remount(true); |
7c673cae FG |
4191 | } |
4192 | }; | |
4193 | ||
4194 | void Client::_invalidate_kernel_dcache() | |
4195 | { | |
4196 | if (unmounting) | |
4197 | return; | |
94b18763 FG |
4198 | if (can_invalidate_dentries) { |
4199 | if (dentry_invalidate_cb && root->dir) { | |
4200 | for (ceph::unordered_map<string, Dentry*>::iterator p = root->dir->dentries.begin(); | |
4201 | p != root->dir->dentries.end(); | |
4202 | ++p) { | |
4203 | if (p->second->inode) | |
4204 | _schedule_invalidate_dentry_callback(p->second, false); | |
4205 | } | |
7c673cae FG |
4206 | } |
4207 | } else if (remount_cb) { | |
4208 | // Hacky: | |
4209 | // when remounting a file system, linux kernel trims all unused dentries in the fs | |
4210 | remount_finisher.queue(new C_Client_Remount(this)); | |
4211 | } | |
4212 | } | |
4213 | ||
91327a77 AA |
4214 | void Client::_trim_negative_child_dentries(InodeRef& in) |
4215 | { | |
4216 | if (!in->is_dir()) | |
4217 | return; | |
4218 | ||
4219 | Dir* dir = in->dir; | |
4220 | if (dir && dir->dentries.size() == dir->num_null_dentries) { | |
4221 | for (auto p = dir->dentries.begin(); p != dir->dentries.end(); ) { | |
4222 | Dentry *dn = p->second; | |
4223 | ++p; | |
11fdf7f2 | 4224 | ceph_assert(!dn->inode); |
91327a77 AA |
4225 | if (dn->lru_is_expireable()) |
4226 | unlink(dn, true, false); // keep dir, drop dentry | |
4227 | } | |
4228 | if (dir->dentries.empty()) { | |
4229 | close_dir(dir); | |
4230 | } | |
4231 | } | |
4232 | ||
4233 | if (in->flags & I_SNAPDIR_OPEN) { | |
4234 | InodeRef snapdir = open_snapdir(in.get()); | |
4235 | _trim_negative_child_dentries(snapdir); | |
4236 | } | |
4237 | } | |
4238 | ||
28e407b8 | 4239 | void Client::trim_caps(MetaSession *s, uint64_t max) |
7c673cae FG |
4240 | { |
4241 | mds_rank_t mds = s->mds_num; | |
28e407b8 | 4242 | size_t caps_size = s->caps.size(); |
11fdf7f2 | 4243 | ldout(cct, 10) << __func__ << " mds." << mds << " max " << max |
7c673cae FG |
4244 | << " caps " << caps_size << dendl; |
4245 | ||
28e407b8 AA |
4246 | uint64_t trimmed = 0; |
4247 | auto p = s->caps.begin(); | |
4248 | std::set<Dentry *> to_trim; /* this avoids caps other than the one we're | |
4249 | * looking at from getting deleted during traversal. */ | |
7c673cae FG |
4250 | while ((caps_size - trimmed) > max && !p.end()) { |
4251 | Cap *cap = *p; | |
11fdf7f2 | 4252 | InodeRef in(&cap->inode); |
7c673cae FG |
4253 | |
4254 | // Increment p early because it will be invalidated if cap | |
4255 | // is deleted inside remove_cap | |
4256 | ++p; | |
4257 | ||
4258 | if (in->caps.size() > 1 && cap != in->auth_cap) { | |
4259 | int mine = cap->issued | cap->implemented; | |
4260 | int oissued = in->auth_cap ? in->auth_cap->issued : 0; | |
4261 | // disposable non-auth cap | |
b32b8144 | 4262 | if (!(get_caps_used(in.get()) & ~oissued & mine)) { |
7c673cae | 4263 | ldout(cct, 20) << " removing unused, unneeded non-auth cap on " << *in << dendl; |
28e407b8 | 4264 | cap = (remove_cap(cap, true), nullptr); |
7c673cae FG |
4265 | trimmed++; |
4266 | } | |
4267 | } else { | |
4268 | ldout(cct, 20) << " trying to trim dentries for " << *in << dendl; | |
91327a77 | 4269 | _trim_negative_child_dentries(in); |
7c673cae | 4270 | bool all = true; |
11fdf7f2 TL |
4271 | auto q = in->dentries.begin(); |
4272 | while (q != in->dentries.end()) { | |
4273 | Dentry *dn = *q; | |
4274 | ++q; | |
7c673cae FG |
4275 | if (dn->lru_is_expireable()) { |
4276 | if (can_invalidate_dentries && | |
4277 | dn->dir->parent_inode->ino == MDS_INO_ROOT) { | |
4278 | // Only issue one of these per DN for inodes in root: handle | |
4279 | // others more efficiently by calling for root-child DNs at | |
4280 | // the end of this function. | |
4281 | _schedule_invalidate_dentry_callback(dn, true); | |
4282 | } | |
28e407b8 AA |
4283 | ldout(cct, 20) << " queueing dentry for trimming: " << dn->name << dendl; |
4284 | to_trim.insert(dn); | |
7c673cae FG |
4285 | } else { |
4286 | ldout(cct, 20) << " not expirable: " << dn->name << dendl; | |
4287 | all = false; | |
4288 | } | |
4289 | } | |
4290 | if (all && in->ino != MDS_INO_ROOT) { | |
4291 | ldout(cct, 20) << __func__ << " counting as trimmed: " << *in << dendl; | |
4292 | trimmed++; | |
4293 | } | |
4294 | } | |
4295 | } | |
28e407b8 AA |
4296 | ldout(cct, 20) << " trimming queued dentries: " << dendl; |
4297 | for (const auto &dn : to_trim) { | |
4298 | trim_dentry(dn); | |
4299 | } | |
4300 | to_trim.clear(); | |
7c673cae | 4301 | |
b32b8144 | 4302 | caps_size = s->caps.size(); |
11fdf7f2 | 4303 | if (caps_size > (size_t)max) |
7c673cae FG |
4304 | _invalidate_kernel_dcache(); |
4305 | } | |
4306 | ||
4307 | void Client::force_session_readonly(MetaSession *s) | |
4308 | { | |
4309 | s->readonly = true; | |
4310 | for (xlist<Cap*>::iterator p = s->caps.begin(); !p.end(); ++p) { | |
11fdf7f2 TL |
4311 | auto &in = (*p)->inode; |
4312 | if (in.caps_wanted() & CEPH_CAP_FILE_WR) | |
4313 | signal_cond_list(in.waitfor_caps); | |
7c673cae FG |
4314 | } |
4315 | } | |
4316 | ||
7c673cae FG |
4317 | int Client::mark_caps_flushing(Inode *in, ceph_tid_t* ptid) |
4318 | { | |
4319 | MetaSession *session = in->auth_cap->session; | |
4320 | ||
4321 | int flushing = in->dirty_caps; | |
11fdf7f2 | 4322 | ceph_assert(flushing); |
7c673cae FG |
4323 | |
4324 | ceph_tid_t flush_tid = ++last_flush_tid; | |
4325 | in->flushing_cap_tids[flush_tid] = flushing; | |
4326 | ||
4327 | if (!in->flushing_caps) { | |
11fdf7f2 | 4328 | ldout(cct, 10) << __func__ << " " << ccap_string(flushing) << " " << *in << dendl; |
7c673cae FG |
4329 | num_flushing_caps++; |
4330 | } else { | |
11fdf7f2 | 4331 | ldout(cct, 10) << __func__ << " (more) " << ccap_string(flushing) << " " << *in << dendl; |
7c673cae FG |
4332 | } |
4333 | ||
4334 | in->flushing_caps |= flushing; | |
28e407b8 | 4335 | in->mark_caps_clean(); |
7c673cae FG |
4336 | |
4337 | if (!in->flushing_cap_item.is_on_list()) | |
4338 | session->flushing_caps.push_back(&in->flushing_cap_item); | |
4339 | session->flushing_caps_tids.insert(flush_tid); | |
4340 | ||
4341 | *ptid = flush_tid; | |
4342 | return flushing; | |
4343 | } | |
4344 | ||
4345 | void Client::adjust_session_flushing_caps(Inode *in, MetaSession *old_s, MetaSession *new_s) | |
4346 | { | |
4347 | for (auto &p : in->cap_snaps) { | |
4348 | CapSnap &capsnap = p.second; | |
4349 | if (capsnap.flush_tid > 0) { | |
4350 | old_s->flushing_caps_tids.erase(capsnap.flush_tid); | |
4351 | new_s->flushing_caps_tids.insert(capsnap.flush_tid); | |
4352 | } | |
4353 | } | |
4354 | for (map<ceph_tid_t, int>::iterator it = in->flushing_cap_tids.begin(); | |
4355 | it != in->flushing_cap_tids.end(); | |
4356 | ++it) { | |
4357 | old_s->flushing_caps_tids.erase(it->first); | |
4358 | new_s->flushing_caps_tids.insert(it->first); | |
4359 | } | |
4360 | new_s->flushing_caps.push_back(&in->flushing_cap_item); | |
4361 | } | |
4362 | ||
4363 | /* | |
4364 | * Flush all caps back to the MDS. Because the callers generally wait on the | |
4365 | * result of this function (syncfs and umount cases), we set | |
4366 | * CHECK_CAPS_SYNCHRONOUS on the last check_caps call. | |
4367 | */ | |
4368 | void Client::flush_caps_sync() | |
4369 | { | |
4370 | ldout(cct, 10) << __func__ << dendl; | |
28e407b8 | 4371 | xlist<Inode*>::iterator p = delayed_list.begin(); |
7c673cae FG |
4372 | while (!p.end()) { |
4373 | unsigned flags = CHECK_CAPS_NODELAY; | |
4374 | Inode *in = *p; | |
4375 | ||
4376 | ++p; | |
28e407b8 AA |
4377 | delayed_list.pop_front(); |
4378 | if (p.end() && dirty_list.empty()) | |
7c673cae FG |
4379 | flags |= CHECK_CAPS_SYNCHRONOUS; |
4380 | check_caps(in, flags); | |
4381 | } | |
4382 | ||
4383 | // other caps, too | |
28e407b8 | 4384 | p = dirty_list.begin(); |
7c673cae FG |
4385 | while (!p.end()) { |
4386 | unsigned flags = CHECK_CAPS_NODELAY; | |
4387 | Inode *in = *p; | |
4388 | ||
4389 | ++p; | |
4390 | if (p.end()) | |
4391 | flags |= CHECK_CAPS_SYNCHRONOUS; | |
4392 | check_caps(in, flags); | |
4393 | } | |
4394 | } | |
4395 | ||
4396 | void Client::flush_caps(Inode *in, MetaSession *session, bool sync) | |
4397 | { | |
11fdf7f2 | 4398 | ldout(cct, 10) << __func__ << " " << in << " mds." << session->mds_num << dendl; |
7c673cae | 4399 | Cap *cap = in->auth_cap; |
11fdf7f2 | 4400 | ceph_assert(cap->session == session); |
7c673cae FG |
4401 | |
4402 | for (map<ceph_tid_t,int>::iterator p = in->flushing_cap_tids.begin(); | |
4403 | p != in->flushing_cap_tids.end(); | |
4404 | ++p) { | |
4405 | bool req_sync = false; | |
4406 | ||
4407 | /* If this is a synchronous request, then flush the journal on last one */ | |
4408 | if (sync && (p->first == in->flushing_cap_tids.rbegin()->first)) | |
4409 | req_sync = true; | |
4410 | ||
4411 | send_cap(in, session, cap, req_sync, | |
4412 | (get_caps_used(in) | in->caps_dirty()), | |
4413 | in->caps_wanted(), (cap->issued | cap->implemented), | |
4414 | p->second, p->first); | |
4415 | } | |
4416 | } | |
4417 | ||
4418 | void Client::wait_sync_caps(Inode *in, ceph_tid_t want) | |
4419 | { | |
4420 | while (in->flushing_caps) { | |
4421 | map<ceph_tid_t, int>::iterator it = in->flushing_cap_tids.begin(); | |
11fdf7f2 | 4422 | ceph_assert(it != in->flushing_cap_tids.end()); |
7c673cae FG |
4423 | if (it->first > want) |
4424 | break; | |
11fdf7f2 | 4425 | ldout(cct, 10) << __func__ << " on " << *in << " flushing " |
7c673cae FG |
4426 | << ccap_string(it->second) << " want " << want |
4427 | << " last " << it->first << dendl; | |
4428 | wait_on_list(in->waitfor_caps); | |
4429 | } | |
4430 | } | |
4431 | ||
4432 | void Client::wait_sync_caps(ceph_tid_t want) | |
4433 | { | |
4434 | retry: | |
11fdf7f2 | 4435 | ldout(cct, 10) << __func__ << " want " << want << " (last is " << last_flush_tid << ", " |
7c673cae | 4436 | << num_flushing_caps << " total flushing)" << dendl; |
11fdf7f2 TL |
4437 | for (auto &p : mds_sessions) { |
4438 | MetaSession *s = &p.second; | |
7c673cae FG |
4439 | if (s->flushing_caps_tids.empty()) |
4440 | continue; | |
4441 | ceph_tid_t oldest_tid = *s->flushing_caps_tids.begin(); | |
4442 | if (oldest_tid <= want) { | |
11fdf7f2 | 4443 | ldout(cct, 10) << " waiting on mds." << p.first << " tid " << oldest_tid |
7c673cae FG |
4444 | << " (want " << want << ")" << dendl; |
4445 | sync_cond.Wait(client_lock); | |
4446 | goto retry; | |
4447 | } | |
4448 | } | |
4449 | } | |
4450 | ||
4451 | void Client::kick_flushing_caps(MetaSession *session) | |
4452 | { | |
4453 | mds_rank_t mds = session->mds_num; | |
11fdf7f2 | 4454 | ldout(cct, 10) << __func__ << " mds." << mds << dendl; |
7c673cae FG |
4455 | |
4456 | for (xlist<Inode*>::iterator p = session->flushing_caps.begin(); !p.end(); ++p) { | |
4457 | Inode *in = *p; | |
4458 | if (session->early_flushing_caps.count(in)) | |
4459 | continue; | |
4460 | ldout(cct, 20) << " reflushing caps on " << *in << " to mds." << mds << dendl; | |
4461 | if (in->cap_snaps.size()) | |
4462 | flush_snaps(in, true); | |
4463 | if (in->flushing_caps) | |
4464 | flush_caps(in, session); | |
4465 | } | |
4466 | ||
4467 | session->early_flushing_caps.clear(); | |
4468 | } | |
4469 | ||
4470 | void Client::early_kick_flushing_caps(MetaSession *session) | |
4471 | { | |
4472 | session->early_flushing_caps.clear(); | |
4473 | ||
4474 | for (xlist<Inode*>::iterator p = session->flushing_caps.begin(); !p.end(); ++p) { | |
4475 | Inode *in = *p; | |
11fdf7f2 TL |
4476 | Cap *cap = in->auth_cap; |
4477 | ceph_assert(cap); | |
7c673cae FG |
4478 | |
4479 | // if flushing caps were revoked, we re-send the cap flush in client reconnect | |
4480 | // stage. This guarantees that MDS processes the cap flush message before issuing | |
4481 | // the flushing caps to other client. | |
4482 | if ((in->flushing_caps & in->auth_cap->issued) == in->flushing_caps) | |
4483 | continue; | |
4484 | ||
4485 | ldout(cct, 20) << " reflushing caps (early_kick) on " << *in | |
4486 | << " to mds." << session->mds_num << dendl; | |
4487 | ||
4488 | session->early_flushing_caps.insert(in); | |
4489 | ||
11fdf7f2 TL |
4490 | // send_reconnect() also will reset these sequence numbers. make sure |
4491 | // sequence numbers in cap flush message match later reconnect message. | |
4492 | cap->seq = 0; | |
4493 | cap->issue_seq = 0; | |
4494 | cap->mseq = 0; | |
4495 | cap->issued = cap->implemented; | |
4496 | ||
7c673cae FG |
4497 | if (in->cap_snaps.size()) |
4498 | flush_snaps(in, true); | |
4499 | if (in->flushing_caps) | |
4500 | flush_caps(in, session); | |
4501 | ||
4502 | } | |
4503 | } | |
4504 | ||
7c673cae FG |
4505 | void SnapRealm::build_snap_context() |
4506 | { | |
4507 | set<snapid_t> snaps; | |
4508 | snapid_t max_seq = seq; | |
4509 | ||
4510 | // start with prior_parents? | |
4511 | for (unsigned i=0; i<prior_parent_snaps.size(); i++) | |
4512 | snaps.insert(prior_parent_snaps[i]); | |
4513 | ||
4514 | // current parent's snaps | |
4515 | if (pparent) { | |
4516 | const SnapContext& psnapc = pparent->get_snap_context(); | |
4517 | for (unsigned i=0; i<psnapc.snaps.size(); i++) | |
4518 | if (psnapc.snaps[i] >= parent_since) | |
4519 | snaps.insert(psnapc.snaps[i]); | |
4520 | if (psnapc.seq > max_seq) | |
4521 | max_seq = psnapc.seq; | |
4522 | } | |
4523 | ||
4524 | // my snaps | |
4525 | for (unsigned i=0; i<my_snaps.size(); i++) | |
4526 | snaps.insert(my_snaps[i]); | |
4527 | ||
4528 | // ok! | |
4529 | cached_snap_context.seq = max_seq; | |
4530 | cached_snap_context.snaps.resize(0); | |
4531 | cached_snap_context.snaps.reserve(snaps.size()); | |
4532 | for (set<snapid_t>::reverse_iterator p = snaps.rbegin(); p != snaps.rend(); ++p) | |
4533 | cached_snap_context.snaps.push_back(*p); | |
4534 | } | |
4535 | ||
4536 | void Client::invalidate_snaprealm_and_children(SnapRealm *realm) | |
4537 | { | |
4538 | list<SnapRealm*> q; | |
4539 | q.push_back(realm); | |
4540 | ||
4541 | while (!q.empty()) { | |
4542 | realm = q.front(); | |
4543 | q.pop_front(); | |
4544 | ||
11fdf7f2 | 4545 | ldout(cct, 10) << __func__ << " " << *realm << dendl; |
7c673cae FG |
4546 | realm->invalidate_cache(); |
4547 | ||
4548 | for (set<SnapRealm*>::iterator p = realm->pchildren.begin(); | |
4549 | p != realm->pchildren.end(); | |
4550 | ++p) | |
4551 | q.push_back(*p); | |
4552 | } | |
4553 | } | |
4554 | ||
4555 | SnapRealm *Client::get_snap_realm(inodeno_t r) | |
4556 | { | |
4557 | SnapRealm *realm = snap_realms[r]; | |
4558 | if (!realm) | |
4559 | snap_realms[r] = realm = new SnapRealm(r); | |
11fdf7f2 | 4560 | ldout(cct, 20) << __func__ << " " << r << " " << realm << " " << realm->nref << " -> " << (realm->nref + 1) << dendl; |
7c673cae FG |
4561 | realm->nref++; |
4562 | return realm; | |
4563 | } | |
4564 | ||
4565 | SnapRealm *Client::get_snap_realm_maybe(inodeno_t r) | |
4566 | { | |
4567 | if (snap_realms.count(r) == 0) { | |
11fdf7f2 | 4568 | ldout(cct, 20) << __func__ << " " << r << " fail" << dendl; |
7c673cae FG |
4569 | return NULL; |
4570 | } | |
4571 | SnapRealm *realm = snap_realms[r]; | |
11fdf7f2 | 4572 | ldout(cct, 20) << __func__ << " " << r << " " << realm << " " << realm->nref << " -> " << (realm->nref + 1) << dendl; |
7c673cae FG |
4573 | realm->nref++; |
4574 | return realm; | |
4575 | } | |
4576 | ||
4577 | void Client::put_snap_realm(SnapRealm *realm) | |
4578 | { | |
11fdf7f2 | 4579 | ldout(cct, 20) << __func__ << " " << realm->ino << " " << realm |
7c673cae FG |
4580 | << " " << realm->nref << " -> " << (realm->nref - 1) << dendl; |
4581 | if (--realm->nref == 0) { | |
4582 | snap_realms.erase(realm->ino); | |
4583 | if (realm->pparent) { | |
4584 | realm->pparent->pchildren.erase(realm); | |
4585 | put_snap_realm(realm->pparent); | |
4586 | } | |
4587 | delete realm; | |
4588 | } | |
4589 | } | |
4590 | ||
4591 | bool Client::adjust_realm_parent(SnapRealm *realm, inodeno_t parent) | |
4592 | { | |
4593 | if (realm->parent != parent) { | |
11fdf7f2 | 4594 | ldout(cct, 10) << __func__ << " " << *realm |
7c673cae FG |
4595 | << " " << realm->parent << " -> " << parent << dendl; |
4596 | realm->parent = parent; | |
4597 | if (realm->pparent) { | |
4598 | realm->pparent->pchildren.erase(realm); | |
4599 | put_snap_realm(realm->pparent); | |
4600 | } | |
4601 | realm->pparent = get_snap_realm(parent); | |
4602 | realm->pparent->pchildren.insert(realm); | |
4603 | return true; | |
4604 | } | |
4605 | return false; | |
4606 | } | |
4607 | ||
4608 | static bool has_new_snaps(const SnapContext& old_snapc, | |
4609 | const SnapContext& new_snapc) | |
4610 | { | |
4611 | return !new_snapc.snaps.empty() && new_snapc.snaps[0] > old_snapc.seq; | |
4612 | } | |
4613 | ||
4614 | ||
11fdf7f2 | 4615 | void Client::update_snap_trace(const bufferlist& bl, SnapRealm **realm_ret, bool flush) |
7c673cae FG |
4616 | { |
4617 | SnapRealm *first_realm = NULL; | |
11fdf7f2 | 4618 | ldout(cct, 10) << __func__ << " len " << bl.length() << dendl; |
7c673cae FG |
4619 | |
4620 | map<SnapRealm*, SnapContext> dirty_realms; | |
4621 | ||
11fdf7f2 | 4622 | auto p = bl.cbegin(); |
7c673cae FG |
4623 | while (!p.end()) { |
4624 | SnapRealmInfo info; | |
11fdf7f2 | 4625 | decode(info, p); |
7c673cae FG |
4626 | SnapRealm *realm = get_snap_realm(info.ino()); |
4627 | ||
4628 | bool invalidate = false; | |
4629 | ||
4630 | if (info.seq() > realm->seq) { | |
11fdf7f2 | 4631 | ldout(cct, 10) << __func__ << " " << *realm << " seq " << info.seq() << " > " << realm->seq |
7c673cae FG |
4632 | << dendl; |
4633 | ||
4634 | if (flush) { | |
4635 | // writeback any dirty caps _before_ updating snap list (i.e. with old snap info) | |
4636 | // flush me + children | |
4637 | list<SnapRealm*> q; | |
4638 | q.push_back(realm); | |
4639 | while (!q.empty()) { | |
4640 | SnapRealm *realm = q.front(); | |
4641 | q.pop_front(); | |
4642 | ||
4643 | for (set<SnapRealm*>::iterator p = realm->pchildren.begin(); | |
4644 | p != realm->pchildren.end(); | |
4645 | ++p) | |
4646 | q.push_back(*p); | |
4647 | ||
4648 | if (dirty_realms.count(realm) == 0) { | |
4649 | realm->nref++; | |
4650 | dirty_realms[realm] = realm->get_snap_context(); | |
4651 | } | |
4652 | } | |
4653 | } | |
4654 | ||
4655 | // update | |
4656 | realm->seq = info.seq(); | |
4657 | realm->created = info.created(); | |
4658 | realm->parent_since = info.parent_since(); | |
4659 | realm->prior_parent_snaps = info.prior_parent_snaps; | |
4660 | realm->my_snaps = info.my_snaps; | |
4661 | invalidate = true; | |
4662 | } | |
4663 | ||
4664 | // _always_ verify parent | |
4665 | if (adjust_realm_parent(realm, info.parent())) | |
4666 | invalidate = true; | |
4667 | ||
4668 | if (invalidate) { | |
4669 | invalidate_snaprealm_and_children(realm); | |
11fdf7f2 | 4670 | ldout(cct, 15) << __func__ << " " << *realm << " self|parent updated" << dendl; |
7c673cae FG |
4671 | ldout(cct, 15) << " snapc " << realm->get_snap_context() << dendl; |
4672 | } else { | |
11fdf7f2 | 4673 | ldout(cct, 10) << __func__ << " " << *realm << " seq " << info.seq() |
7c673cae FG |
4674 | << " <= " << realm->seq << " and same parent, SKIPPING" << dendl; |
4675 | } | |
4676 | ||
4677 | if (!first_realm) | |
4678 | first_realm = realm; | |
4679 | else | |
4680 | put_snap_realm(realm); | |
4681 | } | |
4682 | ||
4683 | for (map<SnapRealm*, SnapContext>::iterator q = dirty_realms.begin(); | |
4684 | q != dirty_realms.end(); | |
4685 | ++q) { | |
4686 | SnapRealm *realm = q->first; | |
4687 | // if there are new snaps ? | |
4688 | if (has_new_snaps(q->second, realm->get_snap_context())) { | |
4689 | ldout(cct, 10) << " flushing caps on " << *realm << dendl; | |
4690 | xlist<Inode*>::iterator r = realm->inodes_with_caps.begin(); | |
4691 | while (!r.end()) { | |
4692 | Inode *in = *r; | |
4693 | ++r; | |
4694 | queue_cap_snap(in, q->second); | |
4695 | } | |
4696 | } else { | |
4697 | ldout(cct, 10) << " no new snap on " << *realm << dendl; | |
4698 | } | |
4699 | put_snap_realm(realm); | |
4700 | } | |
4701 | ||
4702 | if (realm_ret) | |
4703 | *realm_ret = first_realm; | |
4704 | else | |
4705 | put_snap_realm(first_realm); | |
4706 | } | |
4707 | ||
11fdf7f2 | 4708 | void Client::handle_snap(const MConstRef<MClientSnap>& m) |
7c673cae | 4709 | { |
11fdf7f2 | 4710 | ldout(cct, 10) << __func__ << " " << *m << dendl; |
7c673cae FG |
4711 | mds_rank_t mds = mds_rank_t(m->get_source().num()); |
4712 | MetaSession *session = _get_mds_session(mds, m->get_connection().get()); | |
4713 | if (!session) { | |
7c673cae FG |
4714 | return; |
4715 | } | |
4716 | ||
4717 | got_mds_push(session); | |
4718 | ||
4719 | map<Inode*, SnapContext> to_move; | |
4720 | SnapRealm *realm = 0; | |
4721 | ||
4722 | if (m->head.op == CEPH_SNAP_OP_SPLIT) { | |
11fdf7f2 | 4723 | ceph_assert(m->head.split); |
7c673cae | 4724 | SnapRealmInfo info; |
11fdf7f2 TL |
4725 | auto p = m->bl.cbegin(); |
4726 | decode(info, p); | |
4727 | ceph_assert(info.ino() == m->head.split); | |
7c673cae FG |
4728 | |
4729 | // flush, then move, ino's. | |
4730 | realm = get_snap_realm(info.ino()); | |
4731 | ldout(cct, 10) << " splitting off " << *realm << dendl; | |
11fdf7f2 TL |
4732 | for (auto& ino : m->split_inos) { |
4733 | vinodeno_t vino(ino, CEPH_NOSNAP); | |
7c673cae FG |
4734 | if (inode_map.count(vino)) { |
4735 | Inode *in = inode_map[vino]; | |
4736 | if (!in->snaprealm || in->snaprealm == realm) | |
4737 | continue; | |
4738 | if (in->snaprealm->created > info.created()) { | |
4739 | ldout(cct, 10) << " NOT moving " << *in << " from _newer_ realm " | |
4740 | << *in->snaprealm << dendl; | |
4741 | continue; | |
4742 | } | |
4743 | ldout(cct, 10) << " moving " << *in << " from " << *in->snaprealm << dendl; | |
4744 | ||
4745 | ||
4746 | in->snaprealm_item.remove_myself(); | |
4747 | to_move[in] = in->snaprealm->get_snap_context(); | |
4748 | put_snap_realm(in->snaprealm); | |
4749 | } | |
4750 | } | |
4751 | ||
4752 | // move child snaprealms, too | |
11fdf7f2 TL |
4753 | for (auto& child_realm : m->split_realms) { |
4754 | ldout(cct, 10) << "adjusting snaprealm " << child_realm << " parent" << dendl; | |
4755 | SnapRealm *child = get_snap_realm_maybe(child_realm); | |
7c673cae FG |
4756 | if (!child) |
4757 | continue; | |
4758 | adjust_realm_parent(child, realm->ino); | |
4759 | put_snap_realm(child); | |
4760 | } | |
4761 | } | |
4762 | ||
4763 | update_snap_trace(m->bl, NULL, m->head.op != CEPH_SNAP_OP_DESTROY); | |
4764 | ||
4765 | if (realm) { | |
4766 | for (auto p = to_move.begin(); p != to_move.end(); ++p) { | |
4767 | Inode *in = p->first; | |
4768 | in->snaprealm = realm; | |
4769 | realm->inodes_with_caps.push_back(&in->snaprealm_item); | |
4770 | realm->nref++; | |
4771 | // queue for snap writeback | |
4772 | if (has_new_snaps(p->second, realm->get_snap_context())) | |
4773 | queue_cap_snap(in, p->second); | |
4774 | } | |
4775 | put_snap_realm(realm); | |
4776 | } | |
7c673cae FG |
4777 | } |
4778 | ||
11fdf7f2 | 4779 | void Client::handle_quota(const MConstRef<MClientQuota>& m) |
7c673cae FG |
4780 | { |
4781 | mds_rank_t mds = mds_rank_t(m->get_source().num()); | |
4782 | MetaSession *session = _get_mds_session(mds, m->get_connection().get()); | |
4783 | if (!session) { | |
7c673cae FG |
4784 | return; |
4785 | } | |
4786 | ||
4787 | got_mds_push(session); | |
4788 | ||
11fdf7f2 | 4789 | ldout(cct, 10) << __func__ << " " << *m << " from mds." << mds << dendl; |
7c673cae FG |
4790 | |
4791 | vinodeno_t vino(m->ino, CEPH_NOSNAP); | |
4792 | if (inode_map.count(vino)) { | |
4793 | Inode *in = NULL; | |
4794 | in = inode_map[vino]; | |
4795 | ||
4796 | if (in) { | |
4797 | in->quota = m->quota; | |
4798 | in->rstat = m->rstat; | |
4799 | } | |
4800 | } | |
7c673cae FG |
4801 | } |
4802 | ||
11fdf7f2 | 4803 | void Client::handle_caps(const MConstRef<MClientCaps>& m) |
7c673cae FG |
4804 | { |
4805 | mds_rank_t mds = mds_rank_t(m->get_source().num()); | |
4806 | MetaSession *session = _get_mds_session(mds, m->get_connection().get()); | |
4807 | if (!session) { | |
7c673cae FG |
4808 | return; |
4809 | } | |
4810 | ||
4811 | if (m->osd_epoch_barrier && !objecter->have_map(m->osd_epoch_barrier)) { | |
4812 | // Pause RADOS operations until we see the required epoch | |
4813 | objecter->set_epoch_barrier(m->osd_epoch_barrier); | |
4814 | } | |
4815 | ||
4816 | if (m->osd_epoch_barrier > cap_epoch_barrier) { | |
4817 | // Record the barrier so that we will transmit it to MDS when releasing | |
4818 | set_cap_epoch_barrier(m->osd_epoch_barrier); | |
4819 | } | |
4820 | ||
4821 | got_mds_push(session); | |
4822 | ||
11fdf7f2 | 4823 | Inode *in; |
7c673cae | 4824 | vinodeno_t vino(m->get_ino(), CEPH_NOSNAP); |
11fdf7f2 TL |
4825 | if (auto it = inode_map.find(vino); it != inode_map.end()) { |
4826 | in = it->second; | |
4827 | } else { | |
7c673cae | 4828 | if (m->get_op() == CEPH_CAP_OP_IMPORT) { |
11fdf7f2 | 4829 | ldout(cct, 5) << __func__ << " don't have vino " << vino << " on IMPORT, immediately releasing" << dendl; |
7c673cae FG |
4830 | session->enqueue_cap_release( |
4831 | m->get_ino(), | |
4832 | m->get_cap_id(), | |
4833 | m->get_seq(), | |
4834 | m->get_mseq(), | |
4835 | cap_epoch_barrier); | |
4836 | } else { | |
11fdf7f2 | 4837 | ldout(cct, 5) << __func__ << " don't have vino " << vino << ", dropping" << dendl; |
7c673cae | 4838 | } |
7c673cae FG |
4839 | |
4840 | // in case the mds is waiting on e.g. a revocation | |
4841 | flush_cap_releases(); | |
4842 | return; | |
4843 | } | |
4844 | ||
4845 | switch (m->get_op()) { | |
11fdf7f2 TL |
4846 | case CEPH_CAP_OP_EXPORT: return handle_cap_export(session, in, m); |
4847 | case CEPH_CAP_OP_FLUSHSNAP_ACK: return handle_cap_flushsnap_ack(session, in, m); | |
4848 | case CEPH_CAP_OP_IMPORT: /* no return */ handle_cap_import(session, in, m); | |
7c673cae FG |
4849 | } |
4850 | ||
11fdf7f2 TL |
4851 | if (auto it = in->caps.find(mds); it != in->caps.end()) { |
4852 | Cap &cap = in->caps.at(mds); | |
7c673cae | 4853 | |
11fdf7f2 TL |
4854 | switch (m->get_op()) { |
4855 | case CEPH_CAP_OP_TRUNC: return handle_cap_trunc(session, in, m); | |
4856 | case CEPH_CAP_OP_IMPORT: | |
4857 | case CEPH_CAP_OP_REVOKE: | |
4858 | case CEPH_CAP_OP_GRANT: return handle_cap_grant(session, in, &cap, m); | |
4859 | case CEPH_CAP_OP_FLUSH_ACK: return handle_cap_flush_ack(session, in, &cap, m); | |
4860 | } | |
4861 | } else { | |
4862 | ldout(cct, 5) << __func__ << " don't have " << *in << " cap on mds." << mds << dendl; | |
4863 | return; | |
7c673cae FG |
4864 | } |
4865 | } | |
4866 | ||
11fdf7f2 | 4867 | void Client::handle_cap_import(MetaSession *session, Inode *in, const MConstRef<MClientCaps>& m) |
7c673cae FG |
4868 | { |
4869 | mds_rank_t mds = session->mds_num; | |
4870 | ||
11fdf7f2 | 4871 | ldout(cct, 5) << __func__ << " ino " << m->get_ino() << " mseq " << m->get_mseq() |
7c673cae FG |
4872 | << " IMPORT from mds." << mds << dendl; |
4873 | ||
4874 | const mds_rank_t peer_mds = mds_rank_t(m->peer.mds); | |
4875 | Cap *cap = NULL; | |
4876 | UserPerm cap_perms; | |
11fdf7f2 TL |
4877 | if (auto it = in->caps.find(peer_mds); m->peer.cap_id && it != in->caps.end()) { |
4878 | cap = &it->second; | |
4879 | cap_perms = cap->latest_perms; | |
7c673cae FG |
4880 | } |
4881 | ||
4882 | // add/update it | |
4883 | SnapRealm *realm = NULL; | |
4884 | update_snap_trace(m->snapbl, &realm); | |
4885 | ||
4886 | add_update_cap(in, session, m->get_cap_id(), | |
a8e16298 TL |
4887 | m->get_caps(), m->get_wanted(), m->get_seq(), m->get_mseq(), |
4888 | m->get_realm(), CEPH_CAP_FLAG_AUTH, cap_perms); | |
7c673cae FG |
4889 | |
4890 | if (cap && cap->cap_id == m->peer.cap_id) { | |
4891 | remove_cap(cap, (m->peer.flags & CEPH_CAP_FLAG_RELEASE)); | |
4892 | } | |
4893 | ||
4894 | if (realm) | |
4895 | put_snap_realm(realm); | |
4896 | ||
4897 | if (in->auth_cap && in->auth_cap->session->mds_num == mds) { | |
4898 | // reflush any/all caps (if we are now the auth_cap) | |
4899 | if (in->cap_snaps.size()) | |
4900 | flush_snaps(in, true); | |
4901 | if (in->flushing_caps) | |
4902 | flush_caps(in, session); | |
4903 | } | |
4904 | } | |
4905 | ||
11fdf7f2 | 4906 | void Client::handle_cap_export(MetaSession *session, Inode *in, const MConstRef<MClientCaps>& m) |
7c673cae FG |
4907 | { |
4908 | mds_rank_t mds = session->mds_num; | |
4909 | ||
11fdf7f2 | 4910 | ldout(cct, 5) << __func__ << " ino " << m->get_ino() << " mseq " << m->get_mseq() |
7c673cae FG |
4911 | << " EXPORT from mds." << mds << dendl; |
4912 | ||
11fdf7f2 TL |
4913 | auto it = in->caps.find(mds); |
4914 | if (it != in->caps.end()) { | |
4915 | Cap &cap = it->second; | |
4916 | if (cap.cap_id == m->get_cap_id()) { | |
4917 | if (m->peer.cap_id) { | |
4918 | const auto peer_mds = mds_rank_t(m->peer.mds); | |
4919 | MetaSession *tsession = _get_or_open_mds_session(peer_mds); | |
4920 | auto it = in->caps.find(peer_mds); | |
4921 | if (it != in->caps.end()) { | |
4922 | Cap &tcap = it->second; | |
4923 | if (tcap.cap_id == m->peer.cap_id && | |
4924 | ceph_seq_cmp(tcap.seq, m->peer.seq) < 0) { | |
4925 | tcap.cap_id = m->peer.cap_id; | |
4926 | tcap.seq = m->peer.seq - 1; | |
4927 | tcap.issue_seq = tcap.seq; | |
4928 | tcap.issued |= cap.issued; | |
4929 | tcap.implemented |= cap.issued; | |
4930 | if (&cap == in->auth_cap) | |
4931 | in->auth_cap = &tcap; | |
4932 | if (in->auth_cap == &tcap && in->flushing_cap_item.is_on_list()) | |
4933 | adjust_session_flushing_caps(in, session, tsession); | |
4934 | } | |
4935 | } else { | |
4936 | add_update_cap(in, tsession, m->peer.cap_id, cap.issued, 0, | |
4937 | m->peer.seq - 1, m->peer.mseq, (uint64_t)-1, | |
4938 | &cap == in->auth_cap ? CEPH_CAP_FLAG_AUTH : 0, | |
4939 | cap.latest_perms); | |
4940 | } | |
7c673cae | 4941 | } else { |
11fdf7f2 TL |
4942 | if (cap.wanted | cap.issued) |
4943 | in->flags |= I_CAP_DROPPED; | |
7c673cae | 4944 | } |
7c673cae | 4945 | |
11fdf7f2 TL |
4946 | remove_cap(&cap, false); |
4947 | } | |
7c673cae | 4948 | } |
7c673cae FG |
4949 | } |
4950 | ||
11fdf7f2 | 4951 | void Client::handle_cap_trunc(MetaSession *session, Inode *in, const MConstRef<MClientCaps>& m) |
7c673cae FG |
4952 | { |
4953 | mds_rank_t mds = session->mds_num; | |
11fdf7f2 | 4954 | ceph_assert(in->caps.count(mds)); |
7c673cae | 4955 | |
11fdf7f2 | 4956 | ldout(cct, 10) << __func__ << " on ino " << *in |
7c673cae FG |
4957 | << " size " << in->size << " -> " << m->get_size() |
4958 | << dendl; | |
4959 | ||
1adf2230 AA |
4960 | int issued; |
4961 | in->caps_issued(&issued); | |
4962 | issued |= in->caps_dirty(); | |
4963 | update_inode_file_size(in, issued, m->get_size(), | |
4964 | m->get_truncate_seq(), m->get_truncate_size()); | |
7c673cae FG |
4965 | } |
4966 | ||
11fdf7f2 | 4967 | void Client::handle_cap_flush_ack(MetaSession *session, Inode *in, Cap *cap, const MConstRef<MClientCaps>& m) |
7c673cae FG |
4968 | { |
4969 | ceph_tid_t flush_ack_tid = m->get_client_tid(); | |
4970 | int dirty = m->get_dirty(); | |
4971 | int cleaned = 0; | |
4972 | int flushed = 0; | |
4973 | ||
11fdf7f2 TL |
4974 | auto it = in->flushing_cap_tids.begin(); |
4975 | if (it->first < flush_ack_tid) { | |
4976 | ldout(cct, 0) << __func__ << " mds." << session->mds_num | |
4977 | << " got unexpected flush ack tid " << flush_ack_tid | |
4978 | << " expected is " << it->first << dendl; | |
4979 | } | |
4980 | for (; it != in->flushing_cap_tids.end(); ) { | |
7c673cae FG |
4981 | if (it->first == flush_ack_tid) |
4982 | cleaned = it->second; | |
4983 | if (it->first <= flush_ack_tid) { | |
4984 | session->flushing_caps_tids.erase(it->first); | |
4985 | in->flushing_cap_tids.erase(it++); | |
4986 | ++flushed; | |
4987 | continue; | |
4988 | } | |
4989 | cleaned &= ~it->second; | |
4990 | if (!cleaned) | |
4991 | break; | |
4992 | ++it; | |
4993 | } | |
4994 | ||
11fdf7f2 | 4995 | ldout(cct, 5) << __func__ << " mds." << session->mds_num |
7c673cae FG |
4996 | << " cleaned " << ccap_string(cleaned) << " on " << *in |
4997 | << " with " << ccap_string(dirty) << dendl; | |
4998 | ||
4999 | if (flushed) { | |
5000 | signal_cond_list(in->waitfor_caps); | |
5001 | if (session->flushing_caps_tids.empty() || | |
5002 | *session->flushing_caps_tids.begin() > flush_ack_tid) | |
5003 | sync_cond.Signal(); | |
5004 | } | |
5005 | ||
5006 | if (!dirty) { | |
5007 | in->cap_dirtier_uid = -1; | |
5008 | in->cap_dirtier_gid = -1; | |
5009 | } | |
5010 | ||
5011 | if (!cleaned) { | |
5012 | ldout(cct, 10) << " tid " << m->get_client_tid() << " != any cap bit tids" << dendl; | |
5013 | } else { | |
5014 | if (in->flushing_caps) { | |
5015 | ldout(cct, 5) << " flushing_caps " << ccap_string(in->flushing_caps) | |
5016 | << " -> " << ccap_string(in->flushing_caps & ~cleaned) << dendl; | |
5017 | in->flushing_caps &= ~cleaned; | |
5018 | if (in->flushing_caps == 0) { | |
5019 | ldout(cct, 10) << " " << *in << " !flushing" << dendl; | |
5020 | num_flushing_caps--; | |
5021 | if (in->cap_snaps.empty()) | |
5022 | in->flushing_cap_item.remove_myself(); | |
5023 | } | |
5024 | if (!in->caps_dirty()) | |
5025 | put_inode(in); | |
5026 | } | |
5027 | } | |
7c673cae FG |
5028 | } |
5029 | ||
5030 | ||
11fdf7f2 | 5031 | void Client::handle_cap_flushsnap_ack(MetaSession *session, Inode *in, const MConstRef<MClientCaps>& m) |
7c673cae FG |
5032 | { |
5033 | mds_rank_t mds = session->mds_num; | |
11fdf7f2 | 5034 | ceph_assert(in->caps.count(mds)); |
7c673cae FG |
5035 | snapid_t follows = m->get_snap_follows(); |
5036 | ||
11fdf7f2 TL |
5037 | if (auto it = in->cap_snaps.find(follows); it != in->cap_snaps.end()) { |
5038 | auto& capsnap = it->second; | |
7c673cae FG |
5039 | if (m->get_client_tid() != capsnap.flush_tid) { |
5040 | ldout(cct, 10) << " tid " << m->get_client_tid() << " != " << capsnap.flush_tid << dendl; | |
5041 | } else { | |
11fdf7f2 | 5042 | ldout(cct, 5) << __func__ << " mds." << mds << " flushed snap follows " << follows |
7c673cae FG |
5043 | << " on " << *in << dendl; |
5044 | InodeRef tmp_ref; | |
5045 | if (in->get_num_ref() == 1) | |
5046 | tmp_ref = in; // make sure inode not get freed while erasing item from in->cap_snaps | |
5047 | if (in->flushing_caps == 0 && in->cap_snaps.empty()) | |
5048 | in->flushing_cap_item.remove_myself(); | |
5049 | session->flushing_caps_tids.erase(capsnap.flush_tid); | |
11fdf7f2 | 5050 | in->cap_snaps.erase(it); |
7c673cae FG |
5051 | } |
5052 | } else { | |
11fdf7f2 | 5053 | ldout(cct, 5) << __func__ << " DUP(?) mds." << mds << " flushed snap follows " << follows |
7c673cae FG |
5054 | << " on " << *in << dendl; |
5055 | // we may not have it if we send multiple FLUSHSNAP requests and (got multiple FLUSHEDSNAPs back) | |
5056 | } | |
7c673cae FG |
5057 | } |
5058 | ||
5059 | class C_Client_DentryInvalidate : public Context { | |
5060 | private: | |
5061 | Client *client; | |
5062 | vinodeno_t dirino; | |
5063 | vinodeno_t ino; | |
5064 | string name; | |
5065 | public: | |
5066 | C_Client_DentryInvalidate(Client *c, Dentry *dn, bool del) : | |
5067 | client(c), name(dn->name) { | |
5068 | if (client->use_faked_inos()) { | |
5069 | dirino.ino = dn->dir->parent_inode->faked_ino; | |
5070 | if (del) | |
5071 | ino.ino = dn->inode->faked_ino; | |
5072 | } else { | |
5073 | dirino = dn->dir->parent_inode->vino(); | |
5074 | if (del) | |
5075 | ino = dn->inode->vino(); | |
5076 | } | |
5077 | if (!del) | |
5078 | ino.ino = inodeno_t(); | |
5079 | } | |
5080 | void finish(int r) override { | |
5081 | // _async_dentry_invalidate is responsible for its own locking | |
11fdf7f2 | 5082 | ceph_assert(!client->client_lock.is_locked_by_me()); |
7c673cae FG |
5083 | client->_async_dentry_invalidate(dirino, ino, name); |
5084 | } | |
5085 | }; | |
5086 | ||
5087 | void Client::_async_dentry_invalidate(vinodeno_t dirino, vinodeno_t ino, string& name) | |
5088 | { | |
5089 | if (unmounting) | |
5090 | return; | |
11fdf7f2 | 5091 | ldout(cct, 10) << __func__ << " '" << name << "' ino " << ino |
7c673cae FG |
5092 | << " in dir " << dirino << dendl; |
5093 | dentry_invalidate_cb(callback_handle, dirino, ino, name); | |
5094 | } | |
5095 | ||
5096 | void Client::_schedule_invalidate_dentry_callback(Dentry *dn, bool del) | |
5097 | { | |
5098 | if (dentry_invalidate_cb && dn->inode->ll_ref > 0) | |
5099 | async_dentry_invalidator.queue(new C_Client_DentryInvalidate(this, dn, del)); | |
5100 | } | |
5101 | ||
5102 | void Client::_try_to_trim_inode(Inode *in, bool sched_inval) | |
5103 | { | |
5104 | int ref = in->get_num_ref(); | |
494da23a | 5105 | ldout(cct, 5) << __func__ << " in " << *in <<dendl; |
7c673cae FG |
5106 | |
5107 | if (in->dir && !in->dir->dentries.empty()) { | |
5108 | for (auto p = in->dir->dentries.begin(); | |
5109 | p != in->dir->dentries.end(); ) { | |
5110 | Dentry *dn = p->second; | |
5111 | ++p; | |
5112 | /* rmsnap removes whole subtree, need trim inodes recursively. | |
5113 | * we don't need to invalidate dentries recursively. because | |
5114 | * invalidating a directory dentry effectively invalidate | |
5115 | * whole subtree */ | |
5116 | if (in->snapid != CEPH_NOSNAP && dn->inode && dn->inode->is_dir()) | |
5117 | _try_to_trim_inode(dn->inode.get(), false); | |
5118 | ||
5119 | if (dn->lru_is_expireable()) | |
5120 | unlink(dn, true, false); // keep dir, drop dentry | |
5121 | } | |
5122 | if (in->dir->dentries.empty()) { | |
5123 | close_dir(in->dir); | |
5124 | --ref; | |
5125 | } | |
5126 | } | |
5127 | ||
5128 | if (ref > 0 && (in->flags & I_SNAPDIR_OPEN)) { | |
5129 | InodeRef snapdir = open_snapdir(in); | |
5130 | _try_to_trim_inode(snapdir.get(), false); | |
5131 | --ref; | |
5132 | } | |
5133 | ||
494da23a | 5134 | if (ref > 0) { |
11fdf7f2 TL |
5135 | auto q = in->dentries.begin(); |
5136 | while (q != in->dentries.end()) { | |
5137 | Dentry *dn = *q; | |
5138 | ++q; | |
494da23a TL |
5139 | if( in->ll_ref > 0 && sched_inval) { |
5140 | // FIXME: we play lots of unlink/link tricks when handling MDS replies, | |
5141 | // so in->dentries doesn't always reflect the state of kernel's dcache. | |
5142 | _schedule_invalidate_dentry_callback(dn, true); | |
5143 | } | |
7c673cae FG |
5144 | unlink(dn, true, true); |
5145 | } | |
5146 | } | |
5147 | } | |
5148 | ||
11fdf7f2 | 5149 | void Client::handle_cap_grant(MetaSession *session, Inode *in, Cap *cap, const MConstRef<MClientCaps>& m) |
7c673cae FG |
5150 | { |
5151 | mds_rank_t mds = session->mds_num; | |
5152 | int used = get_caps_used(in); | |
5153 | int wanted = in->caps_wanted(); | |
5154 | ||
a8e16298 TL |
5155 | const unsigned new_caps = m->get_caps(); |
5156 | const bool was_stale = session->cap_gen > cap->gen; | |
11fdf7f2 | 5157 | ldout(cct, 5) << __func__ << " on in " << m->get_ino() |
7c673cae FG |
5158 | << " mds." << mds << " seq " << m->get_seq() |
5159 | << " caps now " << ccap_string(new_caps) | |
a8e16298 TL |
5160 | << " was " << ccap_string(cap->issued) |
5161 | << (was_stale ? "" : " (stale)") << dendl; | |
5162 | ||
5163 | if (was_stale) | |
5164 | cap->issued = cap->implemented = CEPH_CAP_PIN; | |
7c673cae | 5165 | cap->seq = m->get_seq(); |
28e407b8 | 5166 | cap->gen = session->cap_gen; |
7c673cae | 5167 | |
11fdf7f2 | 5168 | check_cap_issue(in, new_caps); |
a8e16298 | 5169 | |
7c673cae | 5170 | // update inode |
1adf2230 AA |
5171 | int issued; |
5172 | in->caps_issued(&issued); | |
5173 | issued |= in->caps_dirty(); | |
7c673cae | 5174 | |
1adf2230 AA |
5175 | if ((new_caps & CEPH_CAP_AUTH_SHARED) && |
5176 | !(issued & CEPH_CAP_AUTH_EXCL)) { | |
7c673cae FG |
5177 | in->mode = m->head.mode; |
5178 | in->uid = m->head.uid; | |
5179 | in->gid = m->head.gid; | |
5180 | in->btime = m->btime; | |
5181 | } | |
5182 | bool deleted_inode = false; | |
1adf2230 AA |
5183 | if ((new_caps & CEPH_CAP_LINK_SHARED) && |
5184 | !(issued & CEPH_CAP_LINK_EXCL)) { | |
7c673cae FG |
5185 | in->nlink = m->head.nlink; |
5186 | if (in->nlink == 0 && | |
5187 | (new_caps & (CEPH_CAP_LINK_SHARED | CEPH_CAP_LINK_EXCL))) | |
5188 | deleted_inode = true; | |
5189 | } | |
1adf2230 | 5190 | if (!(issued & CEPH_CAP_XATTR_EXCL) && |
7c673cae FG |
5191 | m->xattrbl.length() && |
5192 | m->head.xattr_version > in->xattr_version) { | |
11fdf7f2 TL |
5193 | auto p = m->xattrbl.cbegin(); |
5194 | decode(in->xattrs, p); | |
7c673cae FG |
5195 | in->xattr_version = m->head.xattr_version; |
5196 | } | |
28e407b8 AA |
5197 | |
5198 | if ((new_caps & CEPH_CAP_FILE_SHARED) && m->dirstat_is_valid()) { | |
5199 | in->dirstat.nfiles = m->get_nfiles(); | |
5200 | in->dirstat.nsubdirs = m->get_nsubdirs(); | |
5201 | } | |
5202 | ||
1adf2230 AA |
5203 | if (new_caps & CEPH_CAP_ANY_RD) { |
5204 | update_inode_file_time(in, issued, m->get_time_warp_seq(), | |
5205 | m->get_ctime(), m->get_mtime(), m->get_atime()); | |
5206 | } | |
5207 | ||
5208 | if (new_caps & (CEPH_CAP_ANY_FILE_RD | CEPH_CAP_ANY_FILE_WR)) { | |
5209 | in->layout = m->get_layout(); | |
5210 | update_inode_file_size(in, issued, m->get_size(), | |
5211 | m->get_truncate_seq(), m->get_truncate_size()); | |
5212 | } | |
5213 | ||
5214 | if (m->inline_version > in->inline_version) { | |
5215 | in->inline_data = m->inline_data; | |
5216 | in->inline_version = m->inline_version; | |
5217 | } | |
5218 | ||
5219 | /* always take a newer change attr */ | |
5220 | if (m->get_change_attr() > in->change_attr) | |
5221 | in->change_attr = m->get_change_attr(); | |
7c673cae FG |
5222 | |
5223 | // max_size | |
5224 | if (cap == in->auth_cap && | |
1adf2230 AA |
5225 | (new_caps & CEPH_CAP_ANY_FILE_WR) && |
5226 | (m->get_max_size() != in->max_size)) { | |
7c673cae FG |
5227 | ldout(cct, 10) << "max_size " << in->max_size << " -> " << m->get_max_size() << dendl; |
5228 | in->max_size = m->get_max_size(); | |
5229 | if (in->max_size > in->wanted_max_size) { | |
5230 | in->wanted_max_size = 0; | |
5231 | in->requested_max_size = 0; | |
5232 | } | |
5233 | } | |
5234 | ||
5235 | bool check = false; | |
a8e16298 TL |
5236 | if ((was_stale || m->get_op() == CEPH_CAP_OP_IMPORT) && |
5237 | (wanted & ~(cap->wanted | new_caps))) { | |
5238 | // If mds is importing cap, prior cap messages that update 'wanted' | |
5239 | // may get dropped by mds (migrate seq mismatch). | |
5240 | // | |
5241 | // We don't send cap message to update 'wanted' if what we want are | |
5242 | // already issued. If mds revokes caps, cap message that releases caps | |
5243 | // also tells mds what we want. But if caps got revoked by mds forcedly | |
5244 | // (session stale). We may haven't told mds what we want. | |
7c673cae | 5245 | check = true; |
a8e16298 | 5246 | } |
7c673cae | 5247 | |
7c673cae FG |
5248 | |
5249 | // update caps | |
a8e16298 | 5250 | auto revoked = cap->issued & ~new_caps; |
b32b8144 FG |
5251 | if (revoked) { |
5252 | ldout(cct, 10) << " revocation of " << ccap_string(revoked) << dendl; | |
7c673cae FG |
5253 | cap->issued = new_caps; |
5254 | cap->implemented |= new_caps; | |
5255 | ||
b32b8144 FG |
5256 | // recall delegations if we're losing caps necessary for them |
5257 | if (revoked & ceph_deleg_caps_for_type(CEPH_DELEGATION_RD)) | |
5258 | in->recall_deleg(false); | |
5259 | else if (revoked & ceph_deleg_caps_for_type(CEPH_DELEGATION_WR)) | |
5260 | in->recall_deleg(true); | |
5261 | ||
11fdf7f2 TL |
5262 | used = adjust_caps_used_for_lazyio(used, cap->issued, cap->implemented); |
5263 | if ((used & revoked & (CEPH_CAP_FILE_BUFFER | CEPH_CAP_FILE_LAZYIO)) && | |
28e407b8 | 5264 | !_flush(in, new C_Client_FlushComplete(this, in))) { |
7c673cae | 5265 | // waitin' for flush |
11fdf7f2 | 5266 | } else if (used & revoked & (CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_LAZYIO)) { |
7c673cae FG |
5267 | if (_release(in)) |
5268 | check = true; | |
5269 | } else { | |
5270 | cap->wanted = 0; // don't let check_caps skip sending a response to MDS | |
5271 | check = true; | |
5272 | } | |
a8e16298 TL |
5273 | } else if (cap->issued == new_caps) { |
5274 | ldout(cct, 10) << " caps unchanged at " << ccap_string(cap->issued) << dendl; | |
7c673cae | 5275 | } else { |
a8e16298 | 5276 | ldout(cct, 10) << " grant, new caps are " << ccap_string(new_caps & ~cap->issued) << dendl; |
7c673cae FG |
5277 | cap->issued = new_caps; |
5278 | cap->implemented |= new_caps; | |
5279 | ||
5280 | if (cap == in->auth_cap) { | |
5281 | // non-auth MDS is revoking the newly grant caps ? | |
11fdf7f2 TL |
5282 | for (const auto &p : in->caps) { |
5283 | if (&p.second == cap) | |
7c673cae | 5284 | continue; |
11fdf7f2 | 5285 | if (p.second.implemented & ~p.second.issued & new_caps) { |
7c673cae FG |
5286 | check = true; |
5287 | break; | |
5288 | } | |
5289 | } | |
5290 | } | |
5291 | } | |
5292 | ||
5293 | if (check) | |
5294 | check_caps(in, 0); | |
5295 | ||
5296 | // wake up waiters | |
5297 | if (new_caps) | |
5298 | signal_cond_list(in->waitfor_caps); | |
5299 | ||
5300 | // may drop inode's last ref | |
5301 | if (deleted_inode) | |
5302 | _try_to_trim_inode(in, true); | |
7c673cae FG |
5303 | } |
5304 | ||
7c673cae FG |
5305 | int Client::inode_permission(Inode *in, const UserPerm& perms, unsigned want) |
5306 | { | |
5307 | if (perms.uid() == 0) | |
5308 | return 0; | |
5309 | ||
5310 | if (perms.uid() != in->uid && (in->mode & S_IRWXG)) { | |
5311 | int ret = _posix_acl_permission(in, perms, want); | |
5312 | if (ret != -EAGAIN) | |
5313 | return ret; | |
5314 | } | |
5315 | ||
5316 | // check permissions before doing anything else | |
5317 | if (!in->check_mode(perms, want)) | |
5318 | return -EACCES; | |
5319 | return 0; | |
5320 | } | |
5321 | ||
5322 | int Client::xattr_permission(Inode *in, const char *name, unsigned want, | |
5323 | const UserPerm& perms) | |
5324 | { | |
5325 | int r = _getattr_for_perm(in, perms); | |
5326 | if (r < 0) | |
5327 | goto out; | |
5328 | ||
5329 | r = 0; | |
5330 | if (strncmp(name, "system.", 7) == 0) { | |
5331 | if ((want & MAY_WRITE) && (perms.uid() != 0 && perms.uid() != in->uid)) | |
5332 | r = -EPERM; | |
5333 | } else { | |
5334 | r = inode_permission(in, perms, want); | |
5335 | } | |
5336 | out: | |
1adf2230 | 5337 | ldout(cct, 5) << __func__ << " " << in << " = " << r << dendl; |
7c673cae FG |
5338 | return r; |
5339 | } | |
5340 | ||
5341 | ostream& operator<<(ostream &out, const UserPerm& perm) { | |
5342 | out << "UserPerm(uid: " << perm.uid() << ", gid: " << perm.gid() << ")"; | |
5343 | return out; | |
5344 | } | |
5345 | ||
5346 | int Client::may_setattr(Inode *in, struct ceph_statx *stx, int mask, | |
5347 | const UserPerm& perms) | |
5348 | { | |
181888fb | 5349 | ldout(cct, 20) << __func__ << " " << *in << "; " << perms << dendl; |
7c673cae FG |
5350 | int r = _getattr_for_perm(in, perms); |
5351 | if (r < 0) | |
5352 | goto out; | |
5353 | ||
5354 | if (mask & CEPH_SETATTR_SIZE) { | |
5355 | r = inode_permission(in, perms, MAY_WRITE); | |
5356 | if (r < 0) | |
5357 | goto out; | |
5358 | } | |
5359 | ||
5360 | r = -EPERM; | |
5361 | if (mask & CEPH_SETATTR_UID) { | |
5362 | if (perms.uid() != 0 && (perms.uid() != in->uid || stx->stx_uid != in->uid)) | |
5363 | goto out; | |
5364 | } | |
5365 | if (mask & CEPH_SETATTR_GID) { | |
5366 | if (perms.uid() != 0 && (perms.uid() != in->uid || | |
5367 | (!perms.gid_in_groups(stx->stx_gid) && stx->stx_gid != in->gid))) | |
5368 | goto out; | |
5369 | } | |
5370 | ||
5371 | if (mask & CEPH_SETATTR_MODE) { | |
5372 | if (perms.uid() != 0 && perms.uid() != in->uid) | |
5373 | goto out; | |
5374 | ||
5375 | gid_t i_gid = (mask & CEPH_SETATTR_GID) ? stx->stx_gid : in->gid; | |
5376 | if (perms.uid() != 0 && !perms.gid_in_groups(i_gid)) | |
5377 | stx->stx_mode &= ~S_ISGID; | |
5378 | } | |
5379 | ||
5380 | if (mask & (CEPH_SETATTR_CTIME | CEPH_SETATTR_BTIME | | |
5381 | CEPH_SETATTR_MTIME | CEPH_SETATTR_ATIME)) { | |
5382 | if (perms.uid() != 0 && perms.uid() != in->uid) { | |
5383 | int check_mask = CEPH_SETATTR_CTIME | CEPH_SETATTR_BTIME; | |
5384 | if (!(mask & CEPH_SETATTR_MTIME_NOW)) | |
5385 | check_mask |= CEPH_SETATTR_MTIME; | |
5386 | if (!(mask & CEPH_SETATTR_ATIME_NOW)) | |
5387 | check_mask |= CEPH_SETATTR_ATIME; | |
5388 | if (check_mask & mask) { | |
5389 | goto out; | |
5390 | } else { | |
5391 | r = inode_permission(in, perms, MAY_WRITE); | |
5392 | if (r < 0) | |
5393 | goto out; | |
5394 | } | |
5395 | } | |
5396 | } | |
5397 | r = 0; | |
5398 | out: | |
5399 | ldout(cct, 3) << __func__ << " " << in << " = " << r << dendl; | |
5400 | return r; | |
5401 | } | |
5402 | ||
5403 | int Client::may_open(Inode *in, int flags, const UserPerm& perms) | |
5404 | { | |
181888fb | 5405 | ldout(cct, 20) << __func__ << " " << *in << "; " << perms << dendl; |
7c673cae FG |
5406 | unsigned want = 0; |
5407 | ||
5408 | if ((flags & O_ACCMODE) == O_WRONLY) | |
5409 | want = MAY_WRITE; | |
5410 | else if ((flags & O_ACCMODE) == O_RDWR) | |
5411 | want = MAY_READ | MAY_WRITE; | |
5412 | else if ((flags & O_ACCMODE) == O_RDONLY) | |
5413 | want = MAY_READ; | |
5414 | if (flags & O_TRUNC) | |
5415 | want |= MAY_WRITE; | |
5416 | ||
5417 | int r = 0; | |
5418 | switch (in->mode & S_IFMT) { | |
5419 | case S_IFLNK: | |
5420 | r = -ELOOP; | |
5421 | goto out; | |
5422 | case S_IFDIR: | |
5423 | if (want & MAY_WRITE) { | |
5424 | r = -EISDIR; | |
5425 | goto out; | |
5426 | } | |
5427 | break; | |
5428 | } | |
5429 | ||
5430 | r = _getattr_for_perm(in, perms); | |
5431 | if (r < 0) | |
5432 | goto out; | |
5433 | ||
5434 | r = inode_permission(in, perms, want); | |
5435 | out: | |
5436 | ldout(cct, 3) << __func__ << " " << in << " = " << r << dendl; | |
5437 | return r; | |
5438 | } | |
5439 | ||
5440 | int Client::may_lookup(Inode *dir, const UserPerm& perms) | |
5441 | { | |
181888fb | 5442 | ldout(cct, 20) << __func__ << " " << *dir << "; " << perms << dendl; |
7c673cae FG |
5443 | int r = _getattr_for_perm(dir, perms); |
5444 | if (r < 0) | |
5445 | goto out; | |
5446 | ||
5447 | r = inode_permission(dir, perms, MAY_EXEC); | |
5448 | out: | |
5449 | ldout(cct, 3) << __func__ << " " << dir << " = " << r << dendl; | |
5450 | return r; | |
5451 | } | |
5452 | ||
5453 | int Client::may_create(Inode *dir, const UserPerm& perms) | |
5454 | { | |
181888fb | 5455 | ldout(cct, 20) << __func__ << " " << *dir << "; " << perms << dendl; |
7c673cae FG |
5456 | int r = _getattr_for_perm(dir, perms); |
5457 | if (r < 0) | |
5458 | goto out; | |
5459 | ||
5460 | r = inode_permission(dir, perms, MAY_EXEC | MAY_WRITE); | |
5461 | out: | |
5462 | ldout(cct, 3) << __func__ << " " << dir << " = " << r << dendl; | |
5463 | return r; | |
5464 | } | |
5465 | ||
5466 | int Client::may_delete(Inode *dir, const char *name, const UserPerm& perms) | |
5467 | { | |
181888fb | 5468 | ldout(cct, 20) << __func__ << " " << *dir << "; " << "; name " << name << "; " << perms << dendl; |
7c673cae FG |
5469 | int r = _getattr_for_perm(dir, perms); |
5470 | if (r < 0) | |
5471 | goto out; | |
5472 | ||
5473 | r = inode_permission(dir, perms, MAY_EXEC | MAY_WRITE); | |
5474 | if (r < 0) | |
5475 | goto out; | |
5476 | ||
5477 | /* 'name == NULL' means rmsnap */ | |
5478 | if (perms.uid() != 0 && name && (dir->mode & S_ISVTX)) { | |
5479 | InodeRef otherin; | |
5480 | r = _lookup(dir, name, CEPH_CAP_AUTH_SHARED, &otherin, perms); | |
5481 | if (r < 0) | |
5482 | goto out; | |
5483 | if (dir->uid != perms.uid() && otherin->uid != perms.uid()) | |
5484 | r = -EPERM; | |
5485 | } | |
5486 | out: | |
5487 | ldout(cct, 3) << __func__ << " " << dir << " = " << r << dendl; | |
5488 | return r; | |
5489 | } | |
5490 | ||
5491 | int Client::may_hardlink(Inode *in, const UserPerm& perms) | |
5492 | { | |
181888fb | 5493 | ldout(cct, 20) << __func__ << " " << *in << "; " << perms << dendl; |
7c673cae FG |
5494 | int r = _getattr_for_perm(in, perms); |
5495 | if (r < 0) | |
5496 | goto out; | |
5497 | ||
5498 | if (perms.uid() == 0 || perms.uid() == in->uid) { | |
5499 | r = 0; | |
5500 | goto out; | |
5501 | } | |
5502 | ||
5503 | r = -EPERM; | |
5504 | if (!S_ISREG(in->mode)) | |
5505 | goto out; | |
5506 | ||
5507 | if (in->mode & S_ISUID) | |
5508 | goto out; | |
5509 | ||
5510 | if ((in->mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP)) | |
5511 | goto out; | |
5512 | ||
5513 | r = inode_permission(in, perms, MAY_READ | MAY_WRITE); | |
5514 | out: | |
5515 | ldout(cct, 3) << __func__ << " " << in << " = " << r << dendl; | |
5516 | return r; | |
5517 | } | |
5518 | ||
5519 | int Client::_getattr_for_perm(Inode *in, const UserPerm& perms) | |
5520 | { | |
5521 | int mask = CEPH_STAT_CAP_MODE; | |
5522 | bool force = false; | |
5523 | if (acl_type != NO_ACL) { | |
5524 | mask |= CEPH_STAT_CAP_XATTR; | |
5525 | force = in->xattr_version == 0; | |
5526 | } | |
5527 | return _getattr(in, mask, perms, force); | |
5528 | } | |
5529 | ||
5530 | vinodeno_t Client::_get_vino(Inode *in) | |
5531 | { | |
5532 | /* The caller must hold the client lock */ | |
5533 | return vinodeno_t(in->ino, in->snapid); | |
5534 | } | |
5535 | ||
7c673cae FG |
5536 | /** |
5537 | * Resolve an MDS spec to a list of MDS daemon GIDs. | |
5538 | * | |
5539 | * The spec is a string representing a GID, rank, filesystem:rank, or name/id. | |
5540 | * It may be '*' in which case it matches all GIDs. | |
5541 | * | |
5542 | * If no error is returned, the `targets` vector will be populated with at least | |
5543 | * one MDS. | |
5544 | */ | |
5545 | int Client::resolve_mds( | |
5546 | const std::string &mds_spec, | |
5547 | std::vector<mds_gid_t> *targets) | |
5548 | { | |
11fdf7f2 TL |
5549 | ceph_assert(fsmap); |
5550 | ceph_assert(targets != nullptr); | |
7c673cae FG |
5551 | |
5552 | mds_role_t role; | |
5553 | std::stringstream ss; | |
5554 | int role_r = fsmap->parse_role(mds_spec, &role, ss); | |
5555 | if (role_r == 0) { | |
5556 | // We got a role, resolve it to a GID | |
5557 | ldout(cct, 10) << __func__ << ": resolved '" << mds_spec << "' to role '" | |
5558 | << role << "'" << dendl; | |
5559 | targets->push_back( | |
5560 | fsmap->get_filesystem(role.fscid)->mds_map.get_info(role.rank).global_id); | |
5561 | return 0; | |
5562 | } | |
5563 | ||
5564 | std::string strtol_err; | |
5565 | long long rank_or_gid = strict_strtoll(mds_spec.c_str(), 10, &strtol_err); | |
5566 | if (strtol_err.empty()) { | |
5567 | // It is a possible GID | |
5568 | const mds_gid_t mds_gid = mds_gid_t(rank_or_gid); | |
5569 | if (fsmap->gid_exists(mds_gid)) { | |
5570 | ldout(cct, 10) << __func__ << ": validated GID " << mds_gid << dendl; | |
5571 | targets->push_back(mds_gid); | |
5572 | } else { | |
5573 | lderr(cct) << __func__ << ": GID " << mds_gid << " not in MDS map" | |
5574 | << dendl; | |
5575 | return -ENOENT; | |
5576 | } | |
5577 | } else if (mds_spec == "*") { | |
5578 | // It is a wildcard: use all MDSs | |
5579 | const auto mds_info = fsmap->get_mds_info(); | |
5580 | ||
5581 | if (mds_info.empty()) { | |
5582 | lderr(cct) << __func__ << ": * passed but no MDS daemons found" << dendl; | |
5583 | return -ENOENT; | |
5584 | } | |
5585 | ||
5586 | for (const auto i : mds_info) { | |
5587 | targets->push_back(i.first); | |
5588 | } | |
5589 | } else { | |
5590 | // It did not parse as an integer, it is not a wildcard, it must be a name | |
5591 | const mds_gid_t mds_gid = fsmap->find_mds_gid_by_name(mds_spec); | |
5592 | if (mds_gid == 0) { | |
5593 | lderr(cct) << "MDS ID '" << mds_spec << "' not found" << dendl; | |
5594 | ||
5595 | lderr(cct) << "FSMap: " << *fsmap << dendl; | |
5596 | ||
5597 | return -ENOENT; | |
5598 | } else { | |
5599 | ldout(cct, 10) << __func__ << ": resolved ID '" << mds_spec | |
5600 | << "' to GID " << mds_gid << dendl; | |
5601 | targets->push_back(mds_gid); | |
5602 | } | |
5603 | } | |
5604 | ||
5605 | return 0; | |
5606 | } | |
5607 | ||
5608 | ||
5609 | /** | |
5610 | * Authenticate with mon and establish global ID | |
5611 | */ | |
5612 | int Client::authenticate() | |
5613 | { | |
11fdf7f2 | 5614 | ceph_assert(client_lock.is_locked_by_me()); |
7c673cae FG |
5615 | |
5616 | if (monclient->is_authenticated()) { | |
5617 | return 0; | |
5618 | } | |
5619 | ||
5620 | client_lock.Unlock(); | |
5621 | int r = monclient->authenticate(cct->_conf->client_mount_timeout); | |
5622 | client_lock.Lock(); | |
5623 | if (r < 0) { | |
5624 | return r; | |
5625 | } | |
5626 | ||
5627 | whoami = monclient->get_global_id(); | |
5628 | messenger->set_myname(entity_name_t::CLIENT(whoami.v)); | |
5629 | ||
5630 | return 0; | |
5631 | } | |
5632 | ||
5633 | int Client::fetch_fsmap(bool user) | |
5634 | { | |
5635 | int r; | |
5636 | // Retrieve FSMap to enable looking up daemon addresses. We need FSMap | |
5637 | // rather than MDSMap because no one MDSMap contains all the daemons, and | |
5638 | // a `tell` can address any daemon. | |
5639 | version_t fsmap_latest; | |
5640 | do { | |
5641 | C_SaferCond cond; | |
5642 | monclient->get_version("fsmap", &fsmap_latest, NULL, &cond); | |
5643 | client_lock.Unlock(); | |
5644 | r = cond.wait(); | |
5645 | client_lock.Lock(); | |
5646 | } while (r == -EAGAIN); | |
5647 | ||
5648 | if (r < 0) { | |
5649 | lderr(cct) << "Failed to learn FSMap version: " << cpp_strerror(r) << dendl; | |
5650 | return r; | |
5651 | } | |
5652 | ||
5653 | ldout(cct, 10) << __func__ << " learned FSMap version " << fsmap_latest << dendl; | |
5654 | ||
5655 | if (user) { | |
5656 | if (!fsmap_user || fsmap_user->get_epoch() < fsmap_latest) { | |
5657 | monclient->sub_want("fsmap.user", fsmap_latest, CEPH_SUBSCRIBE_ONETIME); | |
5658 | monclient->renew_subs(); | |
5659 | wait_on_list(waiting_for_fsmap); | |
5660 | } | |
11fdf7f2 TL |
5661 | ceph_assert(fsmap_user); |
5662 | ceph_assert(fsmap_user->get_epoch() >= fsmap_latest); | |
7c673cae FG |
5663 | } else { |
5664 | if (!fsmap || fsmap->get_epoch() < fsmap_latest) { | |
5665 | monclient->sub_want("fsmap", fsmap_latest, CEPH_SUBSCRIBE_ONETIME); | |
5666 | monclient->renew_subs(); | |
5667 | wait_on_list(waiting_for_fsmap); | |
5668 | } | |
11fdf7f2 TL |
5669 | ceph_assert(fsmap); |
5670 | ceph_assert(fsmap->get_epoch() >= fsmap_latest); | |
7c673cae FG |
5671 | } |
5672 | ldout(cct, 10) << __func__ << " finished waiting for FSMap version " | |
5673 | << fsmap_latest << dendl; | |
5674 | return 0; | |
5675 | } | |
5676 | ||
5677 | /** | |
5678 | * | |
5679 | * @mds_spec one of ID, rank, GID, "*" | |
5680 | * | |
5681 | */ | |
5682 | int Client::mds_command( | |
5683 | const std::string &mds_spec, | |
5684 | const vector<string>& cmd, | |
5685 | const bufferlist& inbl, | |
5686 | bufferlist *outbl, | |
5687 | string *outs, | |
5688 | Context *onfinish) | |
5689 | { | |
11fdf7f2 | 5690 | std::lock_guard lock(client_lock); |
7c673cae | 5691 | |
181888fb FG |
5692 | if (!initialized) |
5693 | return -ENOTCONN; | |
7c673cae FG |
5694 | |
5695 | int r; | |
5696 | r = authenticate(); | |
5697 | if (r < 0) { | |
5698 | return r; | |
5699 | } | |
5700 | ||
5701 | r = fetch_fsmap(false); | |
5702 | if (r < 0) { | |
5703 | return r; | |
5704 | } | |
5705 | ||
5706 | // Look up MDS target(s) of the command | |
5707 | std::vector<mds_gid_t> targets; | |
5708 | r = resolve_mds(mds_spec, &targets); | |
5709 | if (r < 0) { | |
5710 | return r; | |
5711 | } | |
5712 | ||
5713 | // If daemons are laggy, we won't send them commands. If all | |
5714 | // are laggy then we fail. | |
5715 | std::vector<mds_gid_t> non_laggy; | |
5716 | for (const auto gid : targets) { | |
5717 | const auto info = fsmap->get_info_gid(gid); | |
5718 | if (!info.laggy()) { | |
5719 | non_laggy.push_back(gid); | |
5720 | } | |
5721 | } | |
5722 | if (non_laggy.size() == 0) { | |
5723 | *outs = "All targeted MDS daemons are laggy"; | |
5724 | return -ENOENT; | |
5725 | } | |
5726 | ||
5727 | if (metadata.empty()) { | |
5728 | // We are called on an unmounted client, so metadata | |
5729 | // won't be initialized yet. | |
5730 | populate_metadata(""); | |
5731 | } | |
5732 | ||
5733 | // Send commands to targets | |
5734 | C_GatherBuilder gather(cct, onfinish); | |
5735 | for (const auto target_gid : non_laggy) { | |
5736 | const auto info = fsmap->get_info_gid(target_gid); | |
5737 | ||
5738 | // Open a connection to the target MDS | |
11fdf7f2 | 5739 | ConnectionRef conn = messenger->connect_to_mds(info.get_addrs()); |
7c673cae FG |
5740 | |
5741 | // Generate MDSCommandOp state | |
5742 | auto &op = command_table.start_command(); | |
5743 | ||
5744 | op.on_finish = gather.new_sub(); | |
5745 | op.cmd = cmd; | |
5746 | op.outbl = outbl; | |
5747 | op.outs = outs; | |
5748 | op.inbl = inbl; | |
5749 | op.mds_gid = target_gid; | |
5750 | op.con = conn; | |
5751 | ||
5752 | ldout(cct, 4) << __func__ << ": new command op to " << target_gid | |
5753 | << " tid=" << op.tid << cmd << dendl; | |
5754 | ||
5755 | // Construct and send MCommand | |
11fdf7f2 TL |
5756 | auto m = op.get_message(monclient->get_fsid()); |
5757 | conn->send_message2(std::move(m)); | |
7c673cae FG |
5758 | } |
5759 | gather.activate(); | |
5760 | ||
5761 | return 0; | |
5762 | } | |
5763 | ||
11fdf7f2 | 5764 | void Client::handle_command_reply(const MConstRef<MCommandReply>& m) |
7c673cae FG |
5765 | { |
5766 | ceph_tid_t const tid = m->get_tid(); | |
5767 | ||
5768 | ldout(cct, 10) << __func__ << ": tid=" << m->get_tid() << dendl; | |
5769 | ||
5770 | if (!command_table.exists(tid)) { | |
5771 | ldout(cct, 1) << __func__ << ": unknown tid " << tid << ", dropping" << dendl; | |
7c673cae FG |
5772 | return; |
5773 | } | |
5774 | ||
5775 | auto &op = command_table.get_command(tid); | |
5776 | if (op.outbl) { | |
11fdf7f2 | 5777 | *op.outbl = m->get_data(); |
7c673cae FG |
5778 | } |
5779 | if (op.outs) { | |
5780 | *op.outs = m->rs; | |
5781 | } | |
5782 | ||
5783 | if (op.on_finish) { | |
5784 | op.on_finish->complete(m->r); | |
5785 | } | |
5786 | ||
5787 | command_table.erase(tid); | |
7c673cae FG |
5788 | } |
5789 | ||
5790 | // ------------------- | |
5791 | // MOUNT | |
5792 | ||
11fdf7f2 | 5793 | int Client::subscribe_mdsmap(const std::string &fs_name) |
7c673cae | 5794 | { |
7c673cae FG |
5795 | int r = authenticate(); |
5796 | if (r < 0) { | |
5797 | lderr(cct) << "authentication failed: " << cpp_strerror(r) << dendl; | |
5798 | return r; | |
5799 | } | |
5800 | ||
11fdf7f2 TL |
5801 | std::string resolved_fs_name; |
5802 | if (fs_name.empty()) { | |
5803 | resolved_fs_name = cct->_conf.get_val<std::string>("client_mds_namespace"); | |
5804 | } else { | |
5805 | resolved_fs_name = fs_name; | |
5806 | } | |
5807 | ||
7c673cae | 5808 | std::string want = "mdsmap"; |
11fdf7f2 | 5809 | if (!resolved_fs_name.empty()) { |
7c673cae FG |
5810 | r = fetch_fsmap(true); |
5811 | if (r < 0) | |
5812 | return r; | |
11fdf7f2 TL |
5813 | fscid = fsmap_user->get_fs_cid(resolved_fs_name); |
5814 | if (fscid == FS_CLUSTER_ID_NONE) { | |
7c673cae | 5815 | return -ENOENT; |
11fdf7f2 | 5816 | } |
7c673cae FG |
5817 | |
5818 | std::ostringstream oss; | |
11fdf7f2 | 5819 | oss << want << "." << fscid; |
7c673cae FG |
5820 | want = oss.str(); |
5821 | } | |
5822 | ldout(cct, 10) << "Subscribing to map '" << want << "'" << dendl; | |
5823 | ||
5824 | monclient->sub_want(want, 0, 0); | |
5825 | monclient->renew_subs(); | |
5826 | ||
11fdf7f2 TL |
5827 | return 0; |
5828 | } | |
5829 | ||
5830 | int Client::mount(const std::string &mount_root, const UserPerm& perms, | |
5831 | bool require_mds, const std::string &fs_name) | |
5832 | { | |
5833 | std::lock_guard lock(client_lock); | |
5834 | ||
5835 | if (mounted) { | |
5836 | ldout(cct, 5) << "already mounted" << dendl; | |
5837 | return 0; | |
5838 | } | |
5839 | ||
5840 | unmounting = false; | |
5841 | ||
5842 | int r = subscribe_mdsmap(fs_name); | |
5843 | if (r < 0) { | |
5844 | lderr(cct) << "mdsmap subscription failed: " << cpp_strerror(r) << dendl; | |
5845 | return r; | |
5846 | } | |
5847 | ||
7c673cae FG |
5848 | tick(); // start tick |
5849 | ||
5850 | if (require_mds) { | |
5851 | while (1) { | |
5852 | auto availability = mdsmap->is_cluster_available(); | |
5853 | if (availability == MDSMap::STUCK_UNAVAILABLE) { | |
5854 | // Error out | |
5855 | ldout(cct, 10) << "mds cluster unavailable: epoch=" << mdsmap->get_epoch() << dendl; | |
5856 | return CEPH_FUSE_NO_MDS_UP; | |
5857 | } else if (availability == MDSMap::AVAILABLE) { | |
5858 | // Continue to mount | |
5859 | break; | |
5860 | } else if (availability == MDSMap::TRANSIENT_UNAVAILABLE) { | |
5861 | // Else, wait. MDSMonitor will update the map to bring | |
5862 | // us to a conclusion eventually. | |
5863 | wait_on_list(waiting_for_mdsmap); | |
5864 | } else { | |
5865 | // Unexpected value! | |
5866 | ceph_abort(); | |
5867 | } | |
5868 | } | |
5869 | } | |
5870 | ||
5871 | populate_metadata(mount_root.empty() ? "/" : mount_root); | |
5872 | ||
5873 | filepath fp(CEPH_INO_ROOT); | |
5874 | if (!mount_root.empty()) { | |
5875 | fp = filepath(mount_root.c_str()); | |
5876 | } | |
5877 | while (true) { | |
5878 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_GETATTR); | |
5879 | req->set_filepath(fp); | |
5880 | req->head.args.getattr.mask = CEPH_STAT_CAP_INODE_ALL; | |
5881 | int res = make_request(req, perms); | |
5882 | if (res < 0) { | |
5883 | if (res == -EACCES && root) { | |
5884 | ldout(cct, 1) << __func__ << " EACCES on parent of mount point; quotas may not work" << dendl; | |
5885 | break; | |
5886 | } | |
5887 | return res; | |
5888 | } | |
5889 | ||
5890 | if (fp.depth()) | |
5891 | fp.pop_dentry(); | |
5892 | else | |
5893 | break; | |
5894 | } | |
5895 | ||
11fdf7f2 | 5896 | ceph_assert(root); |
7c673cae FG |
5897 | _ll_get(root); |
5898 | ||
5899 | mounted = true; | |
5900 | ||
5901 | // trace? | |
5902 | if (!cct->_conf->client_trace.empty()) { | |
5903 | traceout.open(cct->_conf->client_trace.c_str()); | |
5904 | if (traceout.is_open()) { | |
5905 | ldout(cct, 1) << "opened trace file '" << cct->_conf->client_trace << "'" << dendl; | |
5906 | } else { | |
5907 | ldout(cct, 1) << "FAILED to open trace file '" << cct->_conf->client_trace << "'" << dendl; | |
5908 | } | |
5909 | } | |
5910 | ||
5911 | /* | |
5912 | ldout(cct, 3) << "op: // client trace data structs" << dendl; | |
5913 | ldout(cct, 3) << "op: struct stat st;" << dendl; | |
5914 | ldout(cct, 3) << "op: struct utimbuf utim;" << dendl; | |
5915 | ldout(cct, 3) << "op: int readlinkbuf_len = 1000;" << dendl; | |
5916 | ldout(cct, 3) << "op: char readlinkbuf[readlinkbuf_len];" << dendl; | |
5917 | ldout(cct, 3) << "op: map<string, inode_t*> dir_contents;" << dendl; | |
5918 | ldout(cct, 3) << "op: map<int, int> open_files;" << dendl; | |
5919 | ldout(cct, 3) << "op: int fd;" << dendl; | |
5920 | */ | |
5921 | return 0; | |
5922 | } | |
5923 | ||
5924 | // UNMOUNT | |
5925 | ||
5926 | void Client::_close_sessions() | |
5927 | { | |
5928 | while (!mds_sessions.empty()) { | |
5929 | // send session closes! | |
11fdf7f2 TL |
5930 | for (auto &p : mds_sessions) { |
5931 | if (p.second.state != MetaSession::STATE_CLOSING) { | |
5932 | _close_mds_session(&p.second); | |
7c673cae FG |
5933 | } |
5934 | } | |
5935 | ||
5936 | // wait for sessions to close | |
5937 | ldout(cct, 2) << "waiting for " << mds_sessions.size() << " mds sessions to close" << dendl; | |
5938 | mount_cond.Wait(client_lock); | |
5939 | } | |
5940 | } | |
5941 | ||
31f18b77 FG |
5942 | void Client::flush_mdlog_sync() |
5943 | { | |
5944 | if (mds_requests.empty()) | |
5945 | return; | |
11fdf7f2 TL |
5946 | for (auto &p : mds_sessions) { |
5947 | flush_mdlog(&p.second); | |
31f18b77 FG |
5948 | } |
5949 | } | |
5950 | ||
5951 | void Client::flush_mdlog(MetaSession *session) | |
5952 | { | |
5953 | // Only send this to Luminous or newer MDS daemons, older daemons | |
5954 | // will crash if they see an unknown CEPH_SESSION_* value in this msg. | |
5955 | const uint64_t features = session->con->get_features(); | |
5956 | if (HAVE_FEATURE(features, SERVER_LUMINOUS)) { | |
11fdf7f2 TL |
5957 | auto m = MClientSession::create(CEPH_SESSION_REQUEST_FLUSH_MDLOG); |
5958 | session->con->send_message2(std::move(m)); | |
31f18b77 FG |
5959 | } |
5960 | } | |
5961 | ||
5962 | ||
11fdf7f2 TL |
5963 | void Client::_abort_mds_sessions(int err) |
5964 | { | |
5965 | for (auto p = mds_requests.begin(); p != mds_requests.end(); ) { | |
5966 | auto req = p->second; | |
5967 | ++p; | |
5968 | // unsafe requests will be removed during close session below. | |
5969 | if (req->got_unsafe) | |
5970 | continue; | |
5971 | ||
5972 | req->abort(err); | |
5973 | if (req->caller_cond) { | |
5974 | req->kick = true; | |
5975 | req->caller_cond->Signal(); | |
5976 | } | |
5977 | } | |
5978 | ||
5979 | // Process aborts on any requests that were on this waitlist. | |
5980 | // Any requests that were on a waiting_for_open session waitlist | |
5981 | // will get kicked during close session below. | |
5982 | signal_cond_list(waiting_for_mdsmap); | |
5983 | ||
5984 | // Force-close all sessions | |
5985 | while(!mds_sessions.empty()) { | |
5986 | auto& session = mds_sessions.begin()->second; | |
5987 | _closed_mds_session(&session); | |
5988 | } | |
5989 | } | |
5990 | ||
5991 | void Client::_unmount(bool abort) | |
7c673cae | 5992 | { |
181888fb FG |
5993 | if (unmounting) |
5994 | return; | |
7c673cae | 5995 | |
11fdf7f2 TL |
5996 | if (abort || blacklisted) { |
5997 | ldout(cct, 2) << "unmounting (" << (abort ? "abort)" : "blacklisted)") << dendl; | |
5998 | } else { | |
5999 | ldout(cct, 2) << "unmounting" << dendl; | |
6000 | } | |
7c673cae FG |
6001 | unmounting = true; |
6002 | ||
b32b8144 FG |
6003 | deleg_timeout = 0; |
6004 | ||
11fdf7f2 TL |
6005 | if (abort) { |
6006 | // Abort all mds sessions | |
6007 | _abort_mds_sessions(-ENOTCONN); | |
6008 | ||
6009 | objecter->op_cancel_writes(-ENOTCONN); | |
6010 | } else { | |
6011 | // flush the mdlog for pending requests, if any | |
6012 | flush_mdlog_sync(); | |
6013 | } | |
6014 | ||
7c673cae FG |
6015 | while (!mds_requests.empty()) { |
6016 | ldout(cct, 10) << "waiting on " << mds_requests.size() << " requests" << dendl; | |
6017 | mount_cond.Wait(client_lock); | |
6018 | } | |
6019 | ||
6020 | if (tick_event) | |
6021 | timer.cancel_event(tick_event); | |
6022 | tick_event = 0; | |
6023 | ||
6024 | cwd.reset(); | |
6025 | ||
6026 | // clean up any unclosed files | |
6027 | while (!fd_map.empty()) { | |
6028 | Fh *fh = fd_map.begin()->second; | |
6029 | fd_map.erase(fd_map.begin()); | |
6030 | ldout(cct, 0) << " destroyed lost open file " << fh << " on " << *fh->inode << dendl; | |
6031 | _release_fh(fh); | |
6032 | } | |
6033 | ||
6034 | while (!ll_unclosed_fh_set.empty()) { | |
6035 | set<Fh*>::iterator it = ll_unclosed_fh_set.begin(); | |
6036 | Fh *fh = *it; | |
6037 | ll_unclosed_fh_set.erase(fh); | |
6038 | ldout(cct, 0) << " destroyed lost open file " << fh << " on " << *(fh->inode) << dendl; | |
6039 | _release_fh(fh); | |
6040 | } | |
6041 | ||
6042 | while (!opened_dirs.empty()) { | |
6043 | dir_result_t *dirp = *opened_dirs.begin(); | |
6044 | ldout(cct, 0) << " destroyed lost open dir " << dirp << " on " << *dirp->inode << dendl; | |
6045 | _closedir(dirp); | |
6046 | } | |
6047 | ||
6048 | _ll_drop_pins(); | |
6049 | ||
6050 | while (unsafe_sync_write > 0) { | |
6051 | ldout(cct, 0) << unsafe_sync_write << " unsafe_sync_writes, waiting" << dendl; | |
6052 | mount_cond.Wait(client_lock); | |
6053 | } | |
6054 | ||
6055 | if (cct->_conf->client_oc) { | |
6056 | // flush/release all buffered data | |
11fdf7f2 TL |
6057 | std::list<InodeRef> anchor; |
6058 | for (auto& p : inode_map) { | |
6059 | Inode *in = p.second; | |
7c673cae | 6060 | if (!in) { |
11fdf7f2 TL |
6061 | ldout(cct, 0) << "null inode_map entry ino " << p.first << dendl; |
6062 | ceph_assert(in); | |
7c673cae | 6063 | } |
11fdf7f2 TL |
6064 | |
6065 | // prevent inode from getting freed | |
6066 | anchor.emplace_back(in); | |
6067 | ||
6068 | if (abort || blacklisted) { | |
6069 | objectcacher->purge_set(&in->oset); | |
6070 | } else if (!in->caps.empty()) { | |
7c673cae FG |
6071 | _release(in); |
6072 | _flush(in, new C_Client_FlushComplete(this, in)); | |
6073 | } | |
6074 | } | |
6075 | } | |
6076 | ||
11fdf7f2 TL |
6077 | if (abort || blacklisted) { |
6078 | for (auto p = dirty_list.begin(); !p.end(); ) { | |
6079 | Inode *in = *p; | |
6080 | ++p; | |
6081 | if (in->dirty_caps) { | |
6082 | ldout(cct, 0) << " drop dirty caps on " << *in << dendl; | |
6083 | in->mark_caps_clean(); | |
6084 | put_inode(in); | |
6085 | } | |
6086 | } | |
6087 | } else { | |
6088 | flush_caps_sync(); | |
6089 | wait_sync_caps(last_flush_tid); | |
6090 | } | |
7c673cae FG |
6091 | |
6092 | // empty lru cache | |
7c673cae FG |
6093 | trim_cache(); |
6094 | ||
6095 | while (lru.lru_get_size() > 0 || | |
6096 | !inode_map.empty()) { | |
6097 | ldout(cct, 2) << "cache still has " << lru.lru_get_size() | |
6098 | << "+" << inode_map.size() << " items" | |
6099 | << ", waiting (for caps to release?)" | |
6100 | << dendl; | |
6101 | utime_t until = ceph_clock_now() + utime_t(5, 0); | |
6102 | int r = mount_cond.WaitUntil(client_lock, until); | |
6103 | if (r == ETIMEDOUT) { | |
6104 | dump_cache(NULL); | |
6105 | } | |
6106 | } | |
11fdf7f2 TL |
6107 | ceph_assert(lru.lru_get_size() == 0); |
6108 | ceph_assert(inode_map.empty()); | |
7c673cae FG |
6109 | |
6110 | // stop tracing | |
6111 | if (!cct->_conf->client_trace.empty()) { | |
6112 | ldout(cct, 1) << "closing trace file '" << cct->_conf->client_trace << "'" << dendl; | |
6113 | traceout.close(); | |
6114 | } | |
6115 | ||
6116 | _close_sessions(); | |
6117 | ||
6118 | mounted = false; | |
6119 | ||
6120 | ldout(cct, 2) << "unmounted." << dendl; | |
6121 | } | |
6122 | ||
b32b8144 FG |
6123 | void Client::unmount() |
6124 | { | |
11fdf7f2 TL |
6125 | std::lock_guard lock(client_lock); |
6126 | _unmount(false); | |
6127 | } | |
6128 | ||
6129 | void Client::abort_conn() | |
6130 | { | |
6131 | std::lock_guard lock(client_lock); | |
6132 | _unmount(true); | |
b32b8144 FG |
6133 | } |
6134 | ||
7c673cae FG |
6135 | void Client::flush_cap_releases() |
6136 | { | |
6137 | // send any cap releases | |
11fdf7f2 TL |
6138 | for (auto &p : mds_sessions) { |
6139 | auto &session = p.second; | |
6140 | if (session.release && mdsmap->is_clientreplay_or_active_or_stopping( | |
6141 | p.first)) { | |
7c673cae FG |
6142 | if (cct->_conf->client_inject_release_failure) { |
6143 | ldout(cct, 20) << __func__ << " injecting failure to send cap release message" << dendl; | |
7c673cae | 6144 | } else { |
11fdf7f2 | 6145 | session.con->send_message2(std::move(session.release)); |
7c673cae | 6146 | } |
11fdf7f2 | 6147 | session.release.reset(); |
7c673cae FG |
6148 | } |
6149 | } | |
6150 | } | |
6151 | ||
6152 | void Client::tick() | |
6153 | { | |
6154 | if (cct->_conf->client_debug_inject_tick_delay > 0) { | |
6155 | sleep(cct->_conf->client_debug_inject_tick_delay); | |
11fdf7f2 TL |
6156 | ceph_assert(0 == cct->_conf.set_val("client_debug_inject_tick_delay", "0")); |
6157 | cct->_conf.apply_changes(nullptr); | |
7c673cae FG |
6158 | } |
6159 | ||
6160 | ldout(cct, 21) << "tick" << dendl; | |
3efd9988 FG |
6161 | tick_event = timer.add_event_after( |
6162 | cct->_conf->client_tick_interval, | |
6163 | new FunctionContext([this](int) { | |
6164 | // Called back via Timer, which takes client_lock for us | |
11fdf7f2 | 6165 | ceph_assert(client_lock.is_locked_by_me()); |
3efd9988 FG |
6166 | tick(); |
6167 | })); | |
7c673cae FG |
6168 | utime_t now = ceph_clock_now(); |
6169 | ||
6170 | if (!mounted && !mds_requests.empty()) { | |
6171 | MetaRequest *req = mds_requests.begin()->second; | |
6172 | if (req->op_stamp + cct->_conf->client_mount_timeout < now) { | |
6173 | req->abort(-ETIMEDOUT); | |
6174 | if (req->caller_cond) { | |
6175 | req->kick = true; | |
6176 | req->caller_cond->Signal(); | |
6177 | } | |
6178 | signal_cond_list(waiting_for_mdsmap); | |
11fdf7f2 TL |
6179 | for (auto &p : mds_sessions) { |
6180 | signal_context_list(p.second.waiting_for_open); | |
6181 | } | |
7c673cae FG |
6182 | } |
6183 | } | |
6184 | ||
6185 | if (mdsmap->get_epoch()) { | |
6186 | // renew caps? | |
6187 | utime_t el = now - last_cap_renew; | |
6188 | if (el > mdsmap->get_session_timeout() / 3.0) | |
6189 | renew_caps(); | |
6190 | ||
6191 | flush_cap_releases(); | |
6192 | } | |
6193 | ||
6194 | // delayed caps | |
28e407b8 | 6195 | xlist<Inode*>::iterator p = delayed_list.begin(); |
7c673cae FG |
6196 | while (!p.end()) { |
6197 | Inode *in = *p; | |
6198 | ++p; | |
6199 | if (in->hold_caps_until > now) | |
6200 | break; | |
28e407b8 | 6201 | delayed_list.pop_front(); |
7c673cae FG |
6202 | check_caps(in, CHECK_CAPS_NODELAY); |
6203 | } | |
6204 | ||
6205 | trim_cache(true); | |
6206 | } | |
6207 | ||
6208 | void Client::renew_caps() | |
6209 | { | |
6210 | ldout(cct, 10) << "renew_caps()" << dendl; | |
6211 | last_cap_renew = ceph_clock_now(); | |
6212 | ||
11fdf7f2 TL |
6213 | for (auto &p : mds_sessions) { |
6214 | ldout(cct, 15) << "renew_caps requesting from mds." << p.first << dendl; | |
6215 | if (mdsmap->get_state(p.first) >= MDSMap::STATE_REJOIN) | |
6216 | renew_caps(&p.second); | |
7c673cae FG |
6217 | } |
6218 | } | |
6219 | ||
6220 | void Client::renew_caps(MetaSession *session) | |
6221 | { | |
6222 | ldout(cct, 10) << "renew_caps mds." << session->mds_num << dendl; | |
6223 | session->last_cap_renew_request = ceph_clock_now(); | |
6224 | uint64_t seq = ++session->cap_renew_seq; | |
11fdf7f2 | 6225 | session->con->send_message2(MClientSession::create(CEPH_SESSION_REQUEST_RENEWCAPS, seq)); |
7c673cae FG |
6226 | } |
6227 | ||
6228 | ||
6229 | // =============================================================== | |
6230 | // high level (POSIXy) interface | |
6231 | ||
6232 | int Client::_do_lookup(Inode *dir, const string& name, int mask, | |
6233 | InodeRef *target, const UserPerm& perms) | |
6234 | { | |
6235 | int op = dir->snapid == CEPH_SNAPDIR ? CEPH_MDS_OP_LOOKUPSNAP : CEPH_MDS_OP_LOOKUP; | |
6236 | MetaRequest *req = new MetaRequest(op); | |
6237 | filepath path; | |
6238 | dir->make_nosnap_relative_path(path); | |
6239 | path.push_dentry(name); | |
6240 | req->set_filepath(path); | |
6241 | req->set_inode(dir); | |
6242 | if (cct->_conf->client_debug_getattr_caps && op == CEPH_MDS_OP_LOOKUP) | |
6243 | mask |= DEBUG_GETATTR_CAPS; | |
6244 | req->head.args.getattr.mask = mask; | |
6245 | ||
11fdf7f2 | 6246 | ldout(cct, 10) << __func__ << " on " << path << dendl; |
7c673cae FG |
6247 | |
6248 | int r = make_request(req, perms, target); | |
11fdf7f2 | 6249 | ldout(cct, 10) << __func__ << " res is " << r << dendl; |
7c673cae FG |
6250 | return r; |
6251 | } | |
6252 | ||
6253 | int Client::_lookup(Inode *dir, const string& dname, int mask, InodeRef *target, | |
6254 | const UserPerm& perms) | |
6255 | { | |
6256 | int r = 0; | |
6257 | Dentry *dn = NULL; | |
6258 | ||
7c673cae | 6259 | if (dname == "..") { |
11fdf7f2 TL |
6260 | if (dir->dentries.empty()) { |
6261 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_LOOKUPPARENT); | |
6262 | filepath path(dir->ino); | |
6263 | req->set_filepath(path); | |
6264 | ||
6265 | InodeRef tmptarget; | |
6266 | int r = make_request(req, perms, &tmptarget, NULL, rand() % mdsmap->get_num_in_mds()); | |
6267 | ||
6268 | if (r == 0) { | |
6269 | Inode *tempino = tmptarget.get(); | |
6270 | _ll_get(tempino); | |
6271 | *target = tempino; | |
6272 | ldout(cct, 8) << __func__ << " found target " << (*target)->ino << dendl; | |
6273 | } else { | |
6274 | *target = dir; | |
6275 | } | |
6276 | } | |
7c673cae FG |
6277 | else |
6278 | *target = dir->get_first_parent()->dir->parent_inode; //dirs can't be hard-linked | |
6279 | goto done; | |
6280 | } | |
6281 | ||
6282 | if (dname == ".") { | |
6283 | *target = dir; | |
6284 | goto done; | |
6285 | } | |
6286 | ||
11fdf7f2 TL |
6287 | if (!dir->is_dir()) { |
6288 | r = -ENOTDIR; | |
6289 | goto done; | |
6290 | } | |
6291 | ||
7c673cae FG |
6292 | if (dname.length() > NAME_MAX) { |
6293 | r = -ENAMETOOLONG; | |
6294 | goto done; | |
6295 | } | |
6296 | ||
6297 | if (dname == cct->_conf->client_snapdir && | |
6298 | dir->snapid == CEPH_NOSNAP) { | |
6299 | *target = open_snapdir(dir); | |
6300 | goto done; | |
6301 | } | |
6302 | ||
6303 | if (dir->dir && | |
6304 | dir->dir->dentries.count(dname)) { | |
6305 | dn = dir->dir->dentries[dname]; | |
6306 | ||
11fdf7f2 | 6307 | ldout(cct, 20) << __func__ << " have dn " << dname << " mds." << dn->lease_mds << " ttl " << dn->lease_ttl |
7c673cae FG |
6308 | << " seq " << dn->lease_seq |
6309 | << dendl; | |
6310 | ||
94b18763 | 6311 | if (!dn->inode || dn->inode->caps_issued_mask(mask, true)) { |
7c673cae FG |
6312 | // is dn lease valid? |
6313 | utime_t now = ceph_clock_now(); | |
6314 | if (dn->lease_mds >= 0 && | |
6315 | dn->lease_ttl > now && | |
6316 | mds_sessions.count(dn->lease_mds)) { | |
11fdf7f2 TL |
6317 | MetaSession &s = mds_sessions.at(dn->lease_mds); |
6318 | if (s.cap_ttl > now && | |
6319 | s.cap_gen == dn->lease_gen) { | |
7c673cae FG |
6320 | // touch this mds's dir cap too, even though we don't _explicitly_ use it here, to |
6321 | // make trim_caps() behave. | |
6322 | dir->try_touch_cap(dn->lease_mds); | |
6323 | goto hit_dn; | |
6324 | } | |
11fdf7f2 | 6325 | ldout(cct, 20) << " bad lease, cap_ttl " << s.cap_ttl << ", cap_gen " << s.cap_gen |
7c673cae FG |
6326 | << " vs lease_gen " << dn->lease_gen << dendl; |
6327 | } | |
6328 | // dir lease? | |
94b18763 | 6329 | if (dir->caps_issued_mask(CEPH_CAP_FILE_SHARED, true)) { |
7c673cae | 6330 | if (dn->cap_shared_gen == dir->shared_gen && |
94b18763 | 6331 | (!dn->inode || dn->inode->caps_issued_mask(mask, true))) |
7c673cae FG |
6332 | goto hit_dn; |
6333 | if (!dn->inode && (dir->flags & I_COMPLETE)) { | |
11fdf7f2 | 6334 | ldout(cct, 10) << __func__ << " concluded ENOENT locally for " |
7c673cae FG |
6335 | << *dir << " dn '" << dname << "'" << dendl; |
6336 | return -ENOENT; | |
6337 | } | |
6338 | } | |
6339 | } else { | |
6340 | ldout(cct, 20) << " no cap on " << dn->inode->vino() << dendl; | |
6341 | } | |
6342 | } else { | |
6343 | // can we conclude ENOENT locally? | |
94b18763 | 6344 | if (dir->caps_issued_mask(CEPH_CAP_FILE_SHARED, true) && |
7c673cae | 6345 | (dir->flags & I_COMPLETE)) { |
11fdf7f2 | 6346 | ldout(cct, 10) << __func__ << " concluded ENOENT locally for " << *dir << " dn '" << dname << "'" << dendl; |
7c673cae FG |
6347 | return -ENOENT; |
6348 | } | |
6349 | } | |
6350 | ||
6351 | r = _do_lookup(dir, dname, mask, target, perms); | |
6352 | goto done; | |
6353 | ||
6354 | hit_dn: | |
6355 | if (dn->inode) { | |
6356 | *target = dn->inode; | |
6357 | } else { | |
6358 | r = -ENOENT; | |
6359 | } | |
6360 | touch_dn(dn); | |
6361 | ||
6362 | done: | |
6363 | if (r < 0) | |
11fdf7f2 | 6364 | ldout(cct, 10) << __func__ << " " << *dir << " " << dname << " = " << r << dendl; |
7c673cae | 6365 | else |
11fdf7f2 | 6366 | ldout(cct, 10) << __func__ << " " << *dir << " " << dname << " = " << **target << dendl; |
7c673cae FG |
6367 | return r; |
6368 | } | |
6369 | ||
6370 | int Client::get_or_create(Inode *dir, const char* name, | |
6371 | Dentry **pdn, bool expect_null) | |
6372 | { | |
6373 | // lookup | |
11fdf7f2 | 6374 | ldout(cct, 20) << __func__ << " " << *dir << " name " << name << dendl; |
7c673cae FG |
6375 | dir->open_dir(); |
6376 | if (dir->dir->dentries.count(name)) { | |
6377 | Dentry *dn = dir->dir->dentries[name]; | |
6378 | ||
6379 | // is dn lease valid? | |
6380 | utime_t now = ceph_clock_now(); | |
6381 | if (dn->inode && | |
6382 | dn->lease_mds >= 0 && | |
6383 | dn->lease_ttl > now && | |
6384 | mds_sessions.count(dn->lease_mds)) { | |
11fdf7f2 TL |
6385 | MetaSession &s = mds_sessions.at(dn->lease_mds); |
6386 | if (s.cap_ttl > now && | |
6387 | s.cap_gen == dn->lease_gen) { | |
7c673cae FG |
6388 | if (expect_null) |
6389 | return -EEXIST; | |
6390 | } | |
6391 | } | |
6392 | *pdn = dn; | |
6393 | } else { | |
6394 | // otherwise link up a new one | |
6395 | *pdn = link(dir->dir, name, NULL, NULL); | |
6396 | } | |
6397 | ||
6398 | // success | |
6399 | return 0; | |
6400 | } | |
6401 | ||
6402 | int Client::path_walk(const filepath& origpath, InodeRef *end, | |
6403 | const UserPerm& perms, bool followsym, int mask) | |
6404 | { | |
6405 | filepath path = origpath; | |
6406 | InodeRef cur; | |
6407 | if (origpath.absolute()) | |
6408 | cur = root; | |
6409 | else | |
6410 | cur = cwd; | |
11fdf7f2 | 6411 | ceph_assert(cur); |
7c673cae | 6412 | |
11fdf7f2 | 6413 | ldout(cct, 10) << __func__ << " " << path << dendl; |
7c673cae FG |
6414 | |
6415 | int symlinks = 0; | |
6416 | ||
6417 | unsigned i=0; | |
6418 | while (i < path.depth() && cur) { | |
6419 | int caps = 0; | |
6420 | const string &dname = path[i]; | |
6421 | ldout(cct, 10) << " " << i << " " << *cur << " " << dname << dendl; | |
6422 | ldout(cct, 20) << " (path is " << path << ")" << dendl; | |
6423 | InodeRef next; | |
6424 | if (cct->_conf->client_permissions) { | |
6425 | int r = may_lookup(cur.get(), perms); | |
6426 | if (r < 0) | |
6427 | return r; | |
6428 | caps = CEPH_CAP_AUTH_SHARED; | |
6429 | } | |
6430 | ||
6431 | /* Get extra requested caps on the last component */ | |
6432 | if (i == (path.depth() - 1)) | |
6433 | caps |= mask; | |
6434 | int r = _lookup(cur.get(), dname, caps, &next, perms); | |
6435 | if (r < 0) | |
6436 | return r; | |
6437 | // only follow trailing symlink if followsym. always follow | |
6438 | // 'directory' symlinks. | |
6439 | if (next && next->is_symlink()) { | |
6440 | symlinks++; | |
6441 | ldout(cct, 20) << " symlink count " << symlinks << ", value is '" << next->symlink << "'" << dendl; | |
6442 | if (symlinks > MAXSYMLINKS) { | |
6443 | return -ELOOP; | |
6444 | } | |
6445 | ||
6446 | if (i < path.depth() - 1) { | |
6447 | // dir symlink | |
6448 | // replace consumed components of path with symlink dir target | |
6449 | filepath resolved(next->symlink.c_str()); | |
6450 | resolved.append(path.postfixpath(i + 1)); | |
6451 | path = resolved; | |
6452 | i = 0; | |
6453 | if (next->symlink[0] == '/') { | |
6454 | cur = root; | |
6455 | } | |
6456 | continue; | |
6457 | } else if (followsym) { | |
6458 | if (next->symlink[0] == '/') { | |
6459 | path = next->symlink.c_str(); | |
6460 | i = 0; | |
6461 | // reset position | |
6462 | cur = root; | |
6463 | } else { | |
6464 | filepath more(next->symlink.c_str()); | |
6465 | // we need to remove the symlink component from off of the path | |
6466 | // before adding the target that the symlink points to. remain | |
6467 | // at the same position in the path. | |
6468 | path.pop_dentry(); | |
6469 | path.append(more); | |
6470 | } | |
6471 | continue; | |
6472 | } | |
6473 | } | |
6474 | cur.swap(next); | |
6475 | i++; | |
6476 | } | |
6477 | if (!cur) | |
6478 | return -ENOENT; | |
6479 | if (end) | |
6480 | end->swap(cur); | |
6481 | return 0; | |
6482 | } | |
6483 | ||
6484 | ||
6485 | // namespace ops | |
6486 | ||
6487 | int Client::link(const char *relexisting, const char *relpath, const UserPerm& perm) | |
6488 | { | |
11fdf7f2 | 6489 | std::lock_guard lock(client_lock); |
7c673cae FG |
6490 | tout(cct) << "link" << std::endl; |
6491 | tout(cct) << relexisting << std::endl; | |
6492 | tout(cct) << relpath << std::endl; | |
6493 | ||
181888fb FG |
6494 | if (unmounting) |
6495 | return -ENOTCONN; | |
6496 | ||
7c673cae FG |
6497 | filepath existing(relexisting); |
6498 | ||
6499 | InodeRef in, dir; | |
6500 | int r = path_walk(existing, &in, perm, true); | |
6501 | if (r < 0) | |
6502 | return r; | |
6503 | if (std::string(relpath) == "/") { | |
6504 | r = -EEXIST; | |
6505 | return r; | |
6506 | } | |
6507 | filepath path(relpath); | |
6508 | string name = path.last_dentry(); | |
6509 | path.pop_dentry(); | |
6510 | ||
6511 | r = path_walk(path, &dir, perm, true); | |
6512 | if (r < 0) | |
6513 | return r; | |
6514 | if (cct->_conf->client_permissions) { | |
6515 | if (S_ISDIR(in->mode)) { | |
6516 | r = -EPERM; | |
6517 | return r; | |
6518 | } | |
6519 | r = may_hardlink(in.get(), perm); | |
6520 | if (r < 0) | |
6521 | return r; | |
6522 | r = may_create(dir.get(), perm); | |
6523 | if (r < 0) | |
6524 | return r; | |
6525 | } | |
6526 | r = _link(in.get(), dir.get(), name.c_str(), perm); | |
6527 | return r; | |
6528 | } | |
6529 | ||
6530 | int Client::unlink(const char *relpath, const UserPerm& perm) | |
6531 | { | |
11fdf7f2 TL |
6532 | std::lock_guard lock(client_lock); |
6533 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
6534 | tout(cct) << relpath << std::endl; |
6535 | ||
181888fb FG |
6536 | if (unmounting) |
6537 | return -ENOTCONN; | |
6538 | ||
7c673cae FG |
6539 | if (std::string(relpath) == "/") |
6540 | return -EISDIR; | |
6541 | ||
6542 | filepath path(relpath); | |
6543 | string name = path.last_dentry(); | |
6544 | path.pop_dentry(); | |
6545 | InodeRef dir; | |
6546 | int r = path_walk(path, &dir, perm); | |
6547 | if (r < 0) | |
6548 | return r; | |
6549 | if (cct->_conf->client_permissions) { | |
6550 | r = may_delete(dir.get(), name.c_str(), perm); | |
6551 | if (r < 0) | |
6552 | return r; | |
6553 | } | |
6554 | return _unlink(dir.get(), name.c_str(), perm); | |
6555 | } | |
6556 | ||
6557 | int Client::rename(const char *relfrom, const char *relto, const UserPerm& perm) | |
6558 | { | |
11fdf7f2 TL |
6559 | std::lock_guard lock(client_lock); |
6560 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
6561 | tout(cct) << relfrom << std::endl; |
6562 | tout(cct) << relto << std::endl; | |
6563 | ||
181888fb FG |
6564 | if (unmounting) |
6565 | return -ENOTCONN; | |
6566 | ||
7c673cae FG |
6567 | if (std::string(relfrom) == "/" || std::string(relto) == "/") |
6568 | return -EBUSY; | |
6569 | ||
6570 | filepath from(relfrom); | |
6571 | filepath to(relto); | |
6572 | string fromname = from.last_dentry(); | |
6573 | from.pop_dentry(); | |
6574 | string toname = to.last_dentry(); | |
6575 | to.pop_dentry(); | |
6576 | ||
6577 | InodeRef fromdir, todir; | |
6578 | int r = path_walk(from, &fromdir, perm); | |
6579 | if (r < 0) | |
6580 | goto out; | |
6581 | r = path_walk(to, &todir, perm); | |
6582 | if (r < 0) | |
6583 | goto out; | |
6584 | ||
6585 | if (cct->_conf->client_permissions) { | |
6586 | int r = may_delete(fromdir.get(), fromname.c_str(), perm); | |
6587 | if (r < 0) | |
6588 | return r; | |
6589 | r = may_delete(todir.get(), toname.c_str(), perm); | |
6590 | if (r < 0 && r != -ENOENT) | |
6591 | return r; | |
6592 | } | |
6593 | r = _rename(fromdir.get(), fromname.c_str(), todir.get(), toname.c_str(), perm); | |
6594 | out: | |
6595 | return r; | |
6596 | } | |
6597 | ||
6598 | // dirs | |
6599 | ||
6600 | int Client::mkdir(const char *relpath, mode_t mode, const UserPerm& perm) | |
6601 | { | |
11fdf7f2 TL |
6602 | std::lock_guard lock(client_lock); |
6603 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
6604 | tout(cct) << relpath << std::endl; |
6605 | tout(cct) << mode << std::endl; | |
11fdf7f2 | 6606 | ldout(cct, 10) << __func__ << ": " << relpath << dendl; |
7c673cae | 6607 | |
181888fb FG |
6608 | if (unmounting) |
6609 | return -ENOTCONN; | |
6610 | ||
7c673cae FG |
6611 | if (std::string(relpath) == "/") |
6612 | return -EEXIST; | |
6613 | ||
6614 | filepath path(relpath); | |
6615 | string name = path.last_dentry(); | |
6616 | path.pop_dentry(); | |
6617 | InodeRef dir; | |
6618 | int r = path_walk(path, &dir, perm); | |
6619 | if (r < 0) | |
6620 | return r; | |
6621 | if (cct->_conf->client_permissions) { | |
6622 | r = may_create(dir.get(), perm); | |
6623 | if (r < 0) | |
6624 | return r; | |
6625 | } | |
6626 | return _mkdir(dir.get(), name.c_str(), mode, perm); | |
6627 | } | |
6628 | ||
6629 | int Client::mkdirs(const char *relpath, mode_t mode, const UserPerm& perms) | |
6630 | { | |
11fdf7f2 | 6631 | std::lock_guard lock(client_lock); |
7c673cae | 6632 | ldout(cct, 10) << "Client::mkdirs " << relpath << dendl; |
11fdf7f2 | 6633 | tout(cct) << __func__ << std::endl; |
7c673cae FG |
6634 | tout(cct) << relpath << std::endl; |
6635 | tout(cct) << mode << std::endl; | |
6636 | ||
181888fb FG |
6637 | if (unmounting) |
6638 | return -ENOTCONN; | |
6639 | ||
7c673cae FG |
6640 | //get through existing parts of path |
6641 | filepath path(relpath); | |
6642 | unsigned int i; | |
6643 | int r = 0, caps = 0; | |
6644 | InodeRef cur, next; | |
6645 | cur = cwd; | |
6646 | for (i=0; i<path.depth(); ++i) { | |
6647 | if (cct->_conf->client_permissions) { | |
6648 | r = may_lookup(cur.get(), perms); | |
6649 | if (r < 0) | |
6650 | break; | |
6651 | caps = CEPH_CAP_AUTH_SHARED; | |
6652 | } | |
6653 | r = _lookup(cur.get(), path[i].c_str(), caps, &next, perms); | |
6654 | if (r < 0) | |
6655 | break; | |
6656 | cur.swap(next); | |
6657 | } | |
7c673cae | 6658 | if (r!=-ENOENT) return r; |
11fdf7f2 | 6659 | ldout(cct, 20) << __func__ << " got through " << i << " directories on path " << relpath << dendl; |
7c673cae FG |
6660 | //make new directory at each level |
6661 | for (; i<path.depth(); ++i) { | |
6662 | if (cct->_conf->client_permissions) { | |
6663 | r = may_create(cur.get(), perms); | |
6664 | if (r < 0) | |
6665 | return r; | |
6666 | } | |
6667 | //make new dir | |
6668 | r = _mkdir(cur.get(), path[i].c_str(), mode, perms, &next); | |
c07f9fc5 | 6669 | |
7c673cae | 6670 | //check proper creation/existence |
c07f9fc5 FG |
6671 | if(-EEXIST == r && i < path.depth() - 1) { |
6672 | r = _lookup(cur.get(), path[i].c_str(), CEPH_CAP_AUTH_SHARED, &next, perms); | |
6673 | } | |
6674 | if (r < 0) | |
6675 | return r; | |
7c673cae FG |
6676 | //move to new dir and continue |
6677 | cur.swap(next); | |
11fdf7f2 | 6678 | ldout(cct, 20) << __func__ << ": successfully created directory " |
7c673cae FG |
6679 | << filepath(cur->ino).get_path() << dendl; |
6680 | } | |
6681 | return 0; | |
6682 | } | |
6683 | ||
6684 | int Client::rmdir(const char *relpath, const UserPerm& perms) | |
6685 | { | |
11fdf7f2 TL |
6686 | std::lock_guard lock(client_lock); |
6687 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
6688 | tout(cct) << relpath << std::endl; |
6689 | ||
181888fb FG |
6690 | if (unmounting) |
6691 | return -ENOTCONN; | |
6692 | ||
7c673cae FG |
6693 | if (std::string(relpath) == "/") |
6694 | return -EBUSY; | |
6695 | ||
6696 | filepath path(relpath); | |
6697 | string name = path.last_dentry(); | |
6698 | path.pop_dentry(); | |
6699 | InodeRef dir; | |
6700 | int r = path_walk(path, &dir, perms); | |
6701 | if (r < 0) | |
6702 | return r; | |
6703 | if (cct->_conf->client_permissions) { | |
6704 | int r = may_delete(dir.get(), name.c_str(), perms); | |
6705 | if (r < 0) | |
6706 | return r; | |
6707 | } | |
6708 | return _rmdir(dir.get(), name.c_str(), perms); | |
6709 | } | |
6710 | ||
6711 | int Client::mknod(const char *relpath, mode_t mode, const UserPerm& perms, dev_t rdev) | |
6712 | { | |
11fdf7f2 TL |
6713 | std::lock_guard lock(client_lock); |
6714 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
6715 | tout(cct) << relpath << std::endl; |
6716 | tout(cct) << mode << std::endl; | |
6717 | tout(cct) << rdev << std::endl; | |
6718 | ||
181888fb FG |
6719 | if (unmounting) |
6720 | return -ENOTCONN; | |
6721 | ||
7c673cae FG |
6722 | if (std::string(relpath) == "/") |
6723 | return -EEXIST; | |
6724 | ||
6725 | filepath path(relpath); | |
6726 | string name = path.last_dentry(); | |
6727 | path.pop_dentry(); | |
6728 | InodeRef dir; | |
6729 | int r = path_walk(path, &dir, perms); | |
6730 | if (r < 0) | |
6731 | return r; | |
6732 | if (cct->_conf->client_permissions) { | |
6733 | int r = may_create(dir.get(), perms); | |
6734 | if (r < 0) | |
6735 | return r; | |
6736 | } | |
6737 | return _mknod(dir.get(), name.c_str(), mode, rdev, perms); | |
6738 | } | |
6739 | ||
6740 | // symlinks | |
6741 | ||
6742 | int Client::symlink(const char *target, const char *relpath, const UserPerm& perms) | |
6743 | { | |
11fdf7f2 TL |
6744 | std::lock_guard lock(client_lock); |
6745 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
6746 | tout(cct) << target << std::endl; |
6747 | tout(cct) << relpath << std::endl; | |
6748 | ||
181888fb FG |
6749 | if (unmounting) |
6750 | return -ENOTCONN; | |
6751 | ||
7c673cae FG |
6752 | if (std::string(relpath) == "/") |
6753 | return -EEXIST; | |
6754 | ||
6755 | filepath path(relpath); | |
6756 | string name = path.last_dentry(); | |
6757 | path.pop_dentry(); | |
6758 | InodeRef dir; | |
6759 | int r = path_walk(path, &dir, perms); | |
6760 | if (r < 0) | |
6761 | return r; | |
6762 | if (cct->_conf->client_permissions) { | |
6763 | int r = may_create(dir.get(), perms); | |
6764 | if (r < 0) | |
6765 | return r; | |
6766 | } | |
6767 | return _symlink(dir.get(), name.c_str(), target, perms); | |
6768 | } | |
6769 | ||
6770 | int Client::readlink(const char *relpath, char *buf, loff_t size, const UserPerm& perms) | |
6771 | { | |
11fdf7f2 TL |
6772 | std::lock_guard lock(client_lock); |
6773 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
6774 | tout(cct) << relpath << std::endl; |
6775 | ||
181888fb FG |
6776 | if (unmounting) |
6777 | return -ENOTCONN; | |
6778 | ||
7c673cae FG |
6779 | filepath path(relpath); |
6780 | InodeRef in; | |
6781 | int r = path_walk(path, &in, perms, false); | |
6782 | if (r < 0) | |
6783 | return r; | |
6784 | ||
6785 | return _readlink(in.get(), buf, size); | |
6786 | } | |
6787 | ||
6788 | int Client::_readlink(Inode *in, char *buf, size_t size) | |
6789 | { | |
6790 | if (!in->is_symlink()) | |
6791 | return -EINVAL; | |
6792 | ||
6793 | // copy into buf (at most size bytes) | |
6794 | int r = in->symlink.length(); | |
6795 | if (r > (int)size) | |
6796 | r = size; | |
6797 | memcpy(buf, in->symlink.c_str(), r); | |
6798 | return r; | |
6799 | } | |
6800 | ||
6801 | ||
6802 | // inode stuff | |
6803 | ||
6804 | int Client::_getattr(Inode *in, int mask, const UserPerm& perms, bool force) | |
6805 | { | |
94b18763 | 6806 | bool yes = in->caps_issued_mask(mask, true); |
7c673cae | 6807 | |
11fdf7f2 | 6808 | ldout(cct, 10) << __func__ << " mask " << ccap_string(mask) << " issued=" << yes << dendl; |
7c673cae FG |
6809 | if (yes && !force) |
6810 | return 0; | |
6811 | ||
6812 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_GETATTR); | |
6813 | filepath path; | |
6814 | in->make_nosnap_relative_path(path); | |
6815 | req->set_filepath(path); | |
6816 | req->set_inode(in); | |
6817 | req->head.args.getattr.mask = mask; | |
6818 | ||
6819 | int res = make_request(req, perms); | |
11fdf7f2 | 6820 | ldout(cct, 10) << __func__ << " result=" << res << dendl; |
7c673cae FG |
6821 | return res; |
6822 | } | |
6823 | ||
6824 | int Client::_do_setattr(Inode *in, struct ceph_statx *stx, int mask, | |
6825 | const UserPerm& perms, InodeRef *inp) | |
6826 | { | |
6827 | int issued = in->caps_issued(); | |
6828 | ||
11fdf7f2 | 6829 | ldout(cct, 10) << __func__ << " mask " << mask << " issued " << |
7c673cae FG |
6830 | ccap_string(issued) << dendl; |
6831 | ||
6832 | if (in->snapid != CEPH_NOSNAP) { | |
6833 | return -EROFS; | |
6834 | } | |
6835 | if ((mask & CEPH_SETATTR_SIZE) && | |
6836 | (unsigned long)stx->stx_size > in->size && | |
6837 | is_quota_bytes_exceeded(in, (unsigned long)stx->stx_size - in->size, | |
6838 | perms)) { | |
6839 | return -EDQUOT; | |
6840 | } | |
6841 | ||
6842 | // make the change locally? | |
6843 | if ((in->cap_dirtier_uid >= 0 && perms.uid() != in->cap_dirtier_uid) || | |
6844 | (in->cap_dirtier_gid >= 0 && perms.gid() != in->cap_dirtier_gid)) { | |
6845 | ldout(cct, 10) << __func__ << " caller " << perms.uid() << ":" << perms.gid() | |
6846 | << " != cap dirtier " << in->cap_dirtier_uid << ":" | |
6847 | << in->cap_dirtier_gid << ", forcing sync setattr" | |
6848 | << dendl; | |
6849 | /* | |
6850 | * This works because we implicitly flush the caps as part of the | |
6851 | * request, so the cap update check will happen with the writeback | |
6852 | * cap context, and then the setattr check will happen with the | |
6853 | * caller's context. | |
6854 | * | |
6855 | * In reality this pattern is likely pretty rare (different users | |
6856 | * setattr'ing the same file). If that turns out not to be the | |
6857 | * case later, we can build a more complex pipelined cap writeback | |
6858 | * infrastructure... | |
6859 | */ | |
6860 | if (!mask) | |
6861 | mask |= CEPH_SETATTR_CTIME; | |
6862 | goto force_request; | |
6863 | } | |
6864 | ||
6865 | if (!mask) { | |
6866 | // caller just needs us to bump the ctime | |
6867 | in->ctime = ceph_clock_now(); | |
6868 | in->cap_dirtier_uid = perms.uid(); | |
6869 | in->cap_dirtier_gid = perms.gid(); | |
6870 | if (issued & CEPH_CAP_AUTH_EXCL) | |
28e407b8 | 6871 | in->mark_caps_dirty(CEPH_CAP_AUTH_EXCL); |
7c673cae | 6872 | else if (issued & CEPH_CAP_FILE_EXCL) |
28e407b8 | 6873 | in->mark_caps_dirty(CEPH_CAP_FILE_EXCL); |
7c673cae | 6874 | else if (issued & CEPH_CAP_XATTR_EXCL) |
28e407b8 | 6875 | in->mark_caps_dirty(CEPH_CAP_XATTR_EXCL); |
7c673cae FG |
6876 | else |
6877 | mask |= CEPH_SETATTR_CTIME; | |
6878 | } | |
6879 | ||
6880 | if (in->caps_issued_mask(CEPH_CAP_AUTH_EXCL)) { | |
6881 | bool kill_sguid = mask & (CEPH_SETATTR_SIZE|CEPH_SETATTR_KILL_SGUID); | |
6882 | ||
6883 | mask &= ~CEPH_SETATTR_KILL_SGUID; | |
6884 | ||
6885 | if (mask & CEPH_SETATTR_UID) { | |
6886 | in->ctime = ceph_clock_now(); | |
6887 | in->cap_dirtier_uid = perms.uid(); | |
6888 | in->cap_dirtier_gid = perms.gid(); | |
6889 | in->uid = stx->stx_uid; | |
28e407b8 | 6890 | in->mark_caps_dirty(CEPH_CAP_AUTH_EXCL); |
7c673cae FG |
6891 | mask &= ~CEPH_SETATTR_UID; |
6892 | kill_sguid = true; | |
6893 | ldout(cct,10) << "changing uid to " << stx->stx_uid << dendl; | |
6894 | } | |
6895 | if (mask & CEPH_SETATTR_GID) { | |
6896 | in->ctime = ceph_clock_now(); | |
6897 | in->cap_dirtier_uid = perms.uid(); | |
6898 | in->cap_dirtier_gid = perms.gid(); | |
6899 | in->gid = stx->stx_gid; | |
28e407b8 | 6900 | in->mark_caps_dirty(CEPH_CAP_AUTH_EXCL); |
7c673cae FG |
6901 | mask &= ~CEPH_SETATTR_GID; |
6902 | kill_sguid = true; | |
6903 | ldout(cct,10) << "changing gid to " << stx->stx_gid << dendl; | |
6904 | } | |
6905 | ||
6906 | if (mask & CEPH_SETATTR_MODE) { | |
6907 | in->ctime = ceph_clock_now(); | |
6908 | in->cap_dirtier_uid = perms.uid(); | |
6909 | in->cap_dirtier_gid = perms.gid(); | |
6910 | in->mode = (in->mode & ~07777) | (stx->stx_mode & 07777); | |
28e407b8 | 6911 | in->mark_caps_dirty(CEPH_CAP_AUTH_EXCL); |
7c673cae FG |
6912 | mask &= ~CEPH_SETATTR_MODE; |
6913 | ldout(cct,10) << "changing mode to " << stx->stx_mode << dendl; | |
181888fb | 6914 | } else if (kill_sguid && S_ISREG(in->mode) && (in->mode & (S_IXUSR|S_IXGRP|S_IXOTH))) { |
7c673cae | 6915 | /* Must squash the any setuid/setgid bits with an ownership change */ |
181888fb | 6916 | in->mode &= ~(S_ISUID|S_ISGID); |
28e407b8 | 6917 | in->mark_caps_dirty(CEPH_CAP_AUTH_EXCL); |
7c673cae FG |
6918 | } |
6919 | ||
6920 | if (mask & CEPH_SETATTR_BTIME) { | |
6921 | in->ctime = ceph_clock_now(); | |
6922 | in->cap_dirtier_uid = perms.uid(); | |
6923 | in->cap_dirtier_gid = perms.gid(); | |
6924 | in->btime = utime_t(stx->stx_btime); | |
28e407b8 | 6925 | in->mark_caps_dirty(CEPH_CAP_AUTH_EXCL); |
7c673cae FG |
6926 | mask &= ~CEPH_SETATTR_BTIME; |
6927 | ldout(cct,10) << "changing btime to " << in->btime << dendl; | |
6928 | } | |
6929 | } else if (mask & CEPH_SETATTR_SIZE) { | |
6930 | /* If we don't have Ax, then we must ask the server to clear them on truncate */ | |
6931 | mask |= CEPH_SETATTR_KILL_SGUID; | |
6932 | } | |
6933 | ||
6934 | if (in->caps_issued_mask(CEPH_CAP_FILE_EXCL)) { | |
6935 | if (mask & (CEPH_SETATTR_MTIME|CEPH_SETATTR_ATIME)) { | |
6936 | if (mask & CEPH_SETATTR_MTIME) | |
6937 | in->mtime = utime_t(stx->stx_mtime); | |
6938 | if (mask & CEPH_SETATTR_ATIME) | |
6939 | in->atime = utime_t(stx->stx_atime); | |
6940 | in->ctime = ceph_clock_now(); | |
6941 | in->cap_dirtier_uid = perms.uid(); | |
6942 | in->cap_dirtier_gid = perms.gid(); | |
6943 | in->time_warp_seq++; | |
28e407b8 | 6944 | in->mark_caps_dirty(CEPH_CAP_FILE_EXCL); |
7c673cae FG |
6945 | mask &= ~(CEPH_SETATTR_MTIME|CEPH_SETATTR_ATIME); |
6946 | } | |
6947 | } | |
6948 | if (!mask) { | |
6949 | in->change_attr++; | |
6950 | return 0; | |
6951 | } | |
6952 | ||
6953 | force_request: | |
6954 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_SETATTR); | |
6955 | ||
6956 | filepath path; | |
6957 | ||
6958 | in->make_nosnap_relative_path(path); | |
6959 | req->set_filepath(path); | |
6960 | req->set_inode(in); | |
6961 | ||
6962 | if (mask & CEPH_SETATTR_KILL_SGUID) { | |
6963 | req->inode_drop |= CEPH_CAP_AUTH_SHARED; | |
6964 | } | |
6965 | if (mask & CEPH_SETATTR_MODE) { | |
6966 | req->head.args.setattr.mode = stx->stx_mode; | |
6967 | req->inode_drop |= CEPH_CAP_AUTH_SHARED; | |
6968 | ldout(cct,10) << "changing mode to " << stx->stx_mode << dendl; | |
6969 | } | |
6970 | if (mask & CEPH_SETATTR_UID) { | |
6971 | req->head.args.setattr.uid = stx->stx_uid; | |
6972 | req->inode_drop |= CEPH_CAP_AUTH_SHARED; | |
6973 | ldout(cct,10) << "changing uid to " << stx->stx_uid << dendl; | |
6974 | } | |
6975 | if (mask & CEPH_SETATTR_GID) { | |
6976 | req->head.args.setattr.gid = stx->stx_gid; | |
6977 | req->inode_drop |= CEPH_CAP_AUTH_SHARED; | |
6978 | ldout(cct,10) << "changing gid to " << stx->stx_gid << dendl; | |
6979 | } | |
6980 | if (mask & CEPH_SETATTR_BTIME) { | |
6981 | req->head.args.setattr.btime = utime_t(stx->stx_btime); | |
6982 | req->inode_drop |= CEPH_CAP_AUTH_SHARED; | |
6983 | } | |
6984 | if (mask & CEPH_SETATTR_MTIME) { | |
6985 | req->head.args.setattr.mtime = utime_t(stx->stx_mtime); | |
94b18763 | 6986 | req->inode_drop |= CEPH_CAP_FILE_SHARED | CEPH_CAP_FILE_RD | |
7c673cae FG |
6987 | CEPH_CAP_FILE_WR; |
6988 | } | |
6989 | if (mask & CEPH_SETATTR_ATIME) { | |
6990 | req->head.args.setattr.atime = utime_t(stx->stx_atime); | |
6991 | req->inode_drop |= CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_RD | | |
6992 | CEPH_CAP_FILE_WR; | |
6993 | } | |
6994 | if (mask & CEPH_SETATTR_SIZE) { | |
6995 | if ((unsigned long)stx->stx_size < mdsmap->get_max_filesize()) { | |
6996 | req->head.args.setattr.size = stx->stx_size; | |
6997 | ldout(cct,10) << "changing size to " << stx->stx_size << dendl; | |
6998 | } else { //too big! | |
6999 | put_request(req); | |
7000 | ldout(cct,10) << "unable to set size to " << stx->stx_size << ". Too large!" << dendl; | |
7001 | return -EFBIG; | |
7002 | } | |
94b18763 | 7003 | req->inode_drop |= CEPH_CAP_FILE_SHARED | CEPH_CAP_FILE_RD | |
7c673cae FG |
7004 | CEPH_CAP_FILE_WR; |
7005 | } | |
7006 | req->head.args.setattr.mask = mask; | |
7007 | ||
7008 | req->regetattr_mask = mask; | |
7009 | ||
7010 | int res = make_request(req, perms, inp); | |
7011 | ldout(cct, 10) << "_setattr result=" << res << dendl; | |
7012 | return res; | |
7013 | } | |
7014 | ||
7015 | /* Note that we only care about attrs that setattr cares about */ | |
7016 | void Client::stat_to_statx(struct stat *st, struct ceph_statx *stx) | |
7017 | { | |
7018 | stx->stx_size = st->st_size; | |
7019 | stx->stx_mode = st->st_mode; | |
7020 | stx->stx_uid = st->st_uid; | |
7021 | stx->stx_gid = st->st_gid; | |
11fdf7f2 TL |
7022 | #ifdef __APPLE__ |
7023 | stx->stx_mtime = st->st_mtimespec; | |
7024 | stx->stx_atime = st->st_atimespec; | |
7025 | #else | |
7c673cae FG |
7026 | stx->stx_mtime = st->st_mtim; |
7027 | stx->stx_atime = st->st_atim; | |
11fdf7f2 | 7028 | #endif |
7c673cae FG |
7029 | } |
7030 | ||
7031 | int Client::__setattrx(Inode *in, struct ceph_statx *stx, int mask, | |
7032 | const UserPerm& perms, InodeRef *inp) | |
7033 | { | |
7034 | int ret = _do_setattr(in, stx, mask, perms, inp); | |
7035 | if (ret < 0) | |
7036 | return ret; | |
7037 | if (mask & CEPH_SETATTR_MODE) | |
7038 | ret = _posix_acl_chmod(in, stx->stx_mode, perms); | |
7039 | return ret; | |
7040 | } | |
7041 | ||
7042 | int Client::_setattrx(InodeRef &in, struct ceph_statx *stx, int mask, | |
7043 | const UserPerm& perms) | |
7044 | { | |
7045 | mask &= (CEPH_SETATTR_MODE | CEPH_SETATTR_UID | | |
7046 | CEPH_SETATTR_GID | CEPH_SETATTR_MTIME | | |
7047 | CEPH_SETATTR_ATIME | CEPH_SETATTR_SIZE | | |
7048 | CEPH_SETATTR_CTIME | CEPH_SETATTR_BTIME); | |
7049 | if (cct->_conf->client_permissions) { | |
7050 | int r = may_setattr(in.get(), stx, mask, perms); | |
7051 | if (r < 0) | |
7052 | return r; | |
7053 | } | |
7054 | return __setattrx(in.get(), stx, mask, perms); | |
7055 | } | |
7056 | ||
7057 | int Client::_setattr(InodeRef &in, struct stat *attr, int mask, | |
7058 | const UserPerm& perms) | |
7059 | { | |
7060 | struct ceph_statx stx; | |
7061 | ||
7062 | stat_to_statx(attr, &stx); | |
7063 | mask &= ~CEPH_SETATTR_BTIME; | |
181888fb FG |
7064 | |
7065 | if ((mask & CEPH_SETATTR_UID) && attr->st_uid == static_cast<uid_t>(-1)) { | |
7066 | mask &= ~CEPH_SETATTR_UID; | |
7067 | } | |
7068 | if ((mask & CEPH_SETATTR_GID) && attr->st_gid == static_cast<uid_t>(-1)) { | |
7069 | mask &= ~CEPH_SETATTR_GID; | |
7070 | } | |
7071 | ||
7c673cae FG |
7072 | return _setattrx(in, &stx, mask, perms); |
7073 | } | |
7074 | ||
7075 | int Client::setattr(const char *relpath, struct stat *attr, int mask, | |
7076 | const UserPerm& perms) | |
7077 | { | |
11fdf7f2 TL |
7078 | std::lock_guard lock(client_lock); |
7079 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
7080 | tout(cct) << relpath << std::endl; |
7081 | tout(cct) << mask << std::endl; | |
7082 | ||
181888fb FG |
7083 | if (unmounting) |
7084 | return -ENOTCONN; | |
7085 | ||
7c673cae FG |
7086 | filepath path(relpath); |
7087 | InodeRef in; | |
7088 | int r = path_walk(path, &in, perms); | |
7089 | if (r < 0) | |
7090 | return r; | |
7091 | return _setattr(in, attr, mask, perms); | |
7092 | } | |
7093 | ||
7094 | int Client::setattrx(const char *relpath, struct ceph_statx *stx, int mask, | |
7095 | const UserPerm& perms, int flags) | |
7096 | { | |
11fdf7f2 TL |
7097 | std::lock_guard lock(client_lock); |
7098 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
7099 | tout(cct) << relpath << std::endl; |
7100 | tout(cct) << mask << std::endl; | |
7101 | ||
181888fb FG |
7102 | if (unmounting) |
7103 | return -ENOTCONN; | |
7104 | ||
7c673cae FG |
7105 | filepath path(relpath); |
7106 | InodeRef in; | |
7107 | int r = path_walk(path, &in, perms, !(flags & AT_SYMLINK_NOFOLLOW)); | |
7108 | if (r < 0) | |
7109 | return r; | |
7110 | return _setattrx(in, stx, mask, perms); | |
7111 | } | |
7112 | ||
7113 | int Client::fsetattr(int fd, struct stat *attr, int mask, const UserPerm& perms) | |
7114 | { | |
11fdf7f2 TL |
7115 | std::lock_guard lock(client_lock); |
7116 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
7117 | tout(cct) << fd << std::endl; |
7118 | tout(cct) << mask << std::endl; | |
7119 | ||
181888fb FG |
7120 | if (unmounting) |
7121 | return -ENOTCONN; | |
7122 | ||
7c673cae FG |
7123 | Fh *f = get_filehandle(fd); |
7124 | if (!f) | |
7125 | return -EBADF; | |
7126 | #if defined(__linux__) && defined(O_PATH) | |
7127 | if (f->flags & O_PATH) | |
7128 | return -EBADF; | |
7129 | #endif | |
7130 | return _setattr(f->inode, attr, mask, perms); | |
7131 | } | |
7132 | ||
7133 | int Client::fsetattrx(int fd, struct ceph_statx *stx, int mask, const UserPerm& perms) | |
7134 | { | |
11fdf7f2 TL |
7135 | std::lock_guard lock(client_lock); |
7136 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
7137 | tout(cct) << fd << std::endl; |
7138 | tout(cct) << mask << std::endl; | |
7139 | ||
181888fb FG |
7140 | if (unmounting) |
7141 | return -ENOTCONN; | |
7142 | ||
7c673cae FG |
7143 | Fh *f = get_filehandle(fd); |
7144 | if (!f) | |
7145 | return -EBADF; | |
7146 | #if defined(__linux__) && defined(O_PATH) | |
7147 | if (f->flags & O_PATH) | |
7148 | return -EBADF; | |
7149 | #endif | |
7150 | return _setattrx(f->inode, stx, mask, perms); | |
7151 | } | |
7152 | ||
7153 | int Client::stat(const char *relpath, struct stat *stbuf, const UserPerm& perms, | |
7154 | frag_info_t *dirstat, int mask) | |
7155 | { | |
11fdf7f2 TL |
7156 | ldout(cct, 3) << __func__ << " enter (relpath " << relpath << " mask " << mask << ")" << dendl; |
7157 | std::lock_guard lock(client_lock); | |
7c673cae FG |
7158 | tout(cct) << "stat" << std::endl; |
7159 | tout(cct) << relpath << std::endl; | |
181888fb FG |
7160 | |
7161 | if (unmounting) | |
7162 | return -ENOTCONN; | |
7163 | ||
7c673cae FG |
7164 | filepath path(relpath); |
7165 | InodeRef in; | |
7166 | int r = path_walk(path, &in, perms, true, mask); | |
7167 | if (r < 0) | |
7168 | return r; | |
7169 | r = _getattr(in, mask, perms); | |
7170 | if (r < 0) { | |
11fdf7f2 | 7171 | ldout(cct, 3) << __func__ << " exit on error!" << dendl; |
7c673cae FG |
7172 | return r; |
7173 | } | |
7174 | fill_stat(in, stbuf, dirstat); | |
11fdf7f2 | 7175 | ldout(cct, 3) << __func__ << " exit (relpath " << relpath << " mask " << mask << ")" << dendl; |
7c673cae FG |
7176 | return r; |
7177 | } | |
7178 | ||
7179 | unsigned Client::statx_to_mask(unsigned int flags, unsigned int want) | |
7180 | { | |
7181 | unsigned mask = 0; | |
7182 | ||
7183 | /* if NO_ATTR_SYNC is set, then we don't need any -- just use what's in cache */ | |
7184 | if (flags & AT_NO_ATTR_SYNC) | |
7185 | goto out; | |
7186 | ||
7187 | /* Always set PIN to distinguish from AT_NO_ATTR_SYNC case */ | |
7188 | mask |= CEPH_CAP_PIN; | |
7189 | if (want & (CEPH_STATX_MODE|CEPH_STATX_UID|CEPH_STATX_GID|CEPH_STATX_BTIME|CEPH_STATX_CTIME|CEPH_STATX_VERSION)) | |
7190 | mask |= CEPH_CAP_AUTH_SHARED; | |
7191 | if (want & (CEPH_STATX_NLINK|CEPH_STATX_CTIME|CEPH_STATX_VERSION)) | |
7192 | mask |= CEPH_CAP_LINK_SHARED; | |
7193 | if (want & (CEPH_STATX_ATIME|CEPH_STATX_MTIME|CEPH_STATX_CTIME|CEPH_STATX_SIZE|CEPH_STATX_BLOCKS|CEPH_STATX_VERSION)) | |
7194 | mask |= CEPH_CAP_FILE_SHARED; | |
7195 | if (want & (CEPH_STATX_VERSION|CEPH_STATX_CTIME)) | |
7196 | mask |= CEPH_CAP_XATTR_SHARED; | |
7197 | out: | |
7198 | return mask; | |
7199 | } | |
7200 | ||
7201 | int Client::statx(const char *relpath, struct ceph_statx *stx, | |
7202 | const UserPerm& perms, | |
7203 | unsigned int want, unsigned int flags) | |
7204 | { | |
11fdf7f2 TL |
7205 | ldout(cct, 3) << __func__ << " enter (relpath " << relpath << " want " << want << ")" << dendl; |
7206 | std::lock_guard lock(client_lock); | |
7c673cae FG |
7207 | tout(cct) << "statx" << std::endl; |
7208 | tout(cct) << relpath << std::endl; | |
181888fb FG |
7209 | |
7210 | if (unmounting) | |
7211 | return -ENOTCONN; | |
7212 | ||
7c673cae FG |
7213 | filepath path(relpath); |
7214 | InodeRef in; | |
7215 | ||
7216 | unsigned mask = statx_to_mask(flags, want); | |
7217 | ||
7218 | int r = path_walk(path, &in, perms, !(flags & AT_SYMLINK_NOFOLLOW), mask); | |
7219 | if (r < 0) | |
7220 | return r; | |
7221 | ||
7222 | r = _getattr(in, mask, perms); | |
7223 | if (r < 0) { | |
11fdf7f2 | 7224 | ldout(cct, 3) << __func__ << " exit on error!" << dendl; |
7c673cae FG |
7225 | return r; |
7226 | } | |
7227 | ||
7228 | fill_statx(in, mask, stx); | |
11fdf7f2 | 7229 | ldout(cct, 3) << __func__ << " exit (relpath " << relpath << " mask " << stx->stx_mask << ")" << dendl; |
7c673cae FG |
7230 | return r; |
7231 | } | |
7232 | ||
7233 | int Client::lstat(const char *relpath, struct stat *stbuf, | |
7234 | const UserPerm& perms, frag_info_t *dirstat, int mask) | |
7235 | { | |
11fdf7f2 TL |
7236 | ldout(cct, 3) << __func__ << " enter (relpath " << relpath << " mask " << mask << ")" << dendl; |
7237 | std::lock_guard lock(client_lock); | |
7238 | tout(cct) << __func__ << std::endl; | |
7c673cae | 7239 | tout(cct) << relpath << std::endl; |
181888fb FG |
7240 | |
7241 | if (unmounting) | |
7242 | return -ENOTCONN; | |
7243 | ||
7c673cae FG |
7244 | filepath path(relpath); |
7245 | InodeRef in; | |
7246 | // don't follow symlinks | |
7247 | int r = path_walk(path, &in, perms, false, mask); | |
7248 | if (r < 0) | |
7249 | return r; | |
7250 | r = _getattr(in, mask, perms); | |
7251 | if (r < 0) { | |
11fdf7f2 | 7252 | ldout(cct, 3) << __func__ << " exit on error!" << dendl; |
7c673cae FG |
7253 | return r; |
7254 | } | |
7255 | fill_stat(in, stbuf, dirstat); | |
11fdf7f2 | 7256 | ldout(cct, 3) << __func__ << " exit (relpath " << relpath << " mask " << mask << ")" << dendl; |
7c673cae FG |
7257 | return r; |
7258 | } | |
7259 | ||
7260 | int Client::fill_stat(Inode *in, struct stat *st, frag_info_t *dirstat, nest_info_t *rstat) | |
7261 | { | |
11fdf7f2 | 7262 | ldout(cct, 10) << __func__ << " on " << in->ino << " snap/dev" << in->snapid |
7c673cae FG |
7263 | << " mode 0" << oct << in->mode << dec |
7264 | << " mtime " << in->mtime << " ctime " << in->ctime << dendl; | |
7265 | memset(st, 0, sizeof(struct stat)); | |
7266 | if (use_faked_inos()) | |
7267 | st->st_ino = in->faked_ino; | |
7268 | else | |
7269 | st->st_ino = in->ino; | |
7270 | st->st_dev = in->snapid; | |
7271 | st->st_mode = in->mode; | |
7272 | st->st_rdev = in->rdev; | |
28e407b8 AA |
7273 | if (in->is_dir()) { |
7274 | switch (in->nlink) { | |
7275 | case 0: | |
7276 | st->st_nlink = 0; /* dir is unlinked */ | |
7277 | break; | |
7278 | case 1: | |
7279 | st->st_nlink = 1 /* parent dentry */ | |
7280 | + 1 /* <dir>/. */ | |
7281 | + in->dirstat.nsubdirs; /* include <dir>/. self-reference */ | |
7282 | break; | |
7283 | default: | |
7284 | ceph_abort(); | |
7285 | } | |
7286 | } else { | |
7287 | st->st_nlink = in->nlink; | |
7288 | } | |
7c673cae FG |
7289 | st->st_uid = in->uid; |
7290 | st->st_gid = in->gid; | |
7291 | if (in->ctime > in->mtime) { | |
7292 | stat_set_ctime_sec(st, in->ctime.sec()); | |
7293 | stat_set_ctime_nsec(st, in->ctime.nsec()); | |
7294 | } else { | |
7295 | stat_set_ctime_sec(st, in->mtime.sec()); | |
7296 | stat_set_ctime_nsec(st, in->mtime.nsec()); | |
7297 | } | |
7298 | stat_set_atime_sec(st, in->atime.sec()); | |
7299 | stat_set_atime_nsec(st, in->atime.nsec()); | |
7300 | stat_set_mtime_sec(st, in->mtime.sec()); | |
7301 | stat_set_mtime_nsec(st, in->mtime.nsec()); | |
7302 | if (in->is_dir()) { | |
7303 | if (cct->_conf->client_dirsize_rbytes) | |
7304 | st->st_size = in->rstat.rbytes; | |
7305 | else | |
7306 | st->st_size = in->dirstat.size(); | |
7307 | st->st_blocks = 1; | |
7308 | } else { | |
7309 | st->st_size = in->size; | |
7310 | st->st_blocks = (in->size + 511) >> 9; | |
7311 | } | |
11fdf7f2 | 7312 | st->st_blksize = std::max<uint32_t>(in->layout.stripe_unit, 4096); |
7c673cae FG |
7313 | |
7314 | if (dirstat) | |
7315 | *dirstat = in->dirstat; | |
7316 | if (rstat) | |
7317 | *rstat = in->rstat; | |
7318 | ||
7319 | return in->caps_issued(); | |
7320 | } | |
7321 | ||
7322 | void Client::fill_statx(Inode *in, unsigned int mask, struct ceph_statx *stx) | |
7323 | { | |
11fdf7f2 | 7324 | ldout(cct, 10) << __func__ << " on " << in->ino << " snap/dev" << in->snapid |
7c673cae FG |
7325 | << " mode 0" << oct << in->mode << dec |
7326 | << " mtime " << in->mtime << " ctime " << in->ctime << dendl; | |
7327 | memset(stx, 0, sizeof(struct ceph_statx)); | |
7328 | ||
7329 | /* | |
7330 | * If mask is 0, then the caller set AT_NO_ATTR_SYNC. Reset the mask | |
7331 | * so that all bits are set. | |
7332 | */ | |
7333 | if (!mask) | |
7334 | mask = ~0; | |
7335 | ||
7336 | /* These are always considered to be available */ | |
7337 | stx->stx_dev = in->snapid; | |
11fdf7f2 | 7338 | stx->stx_blksize = std::max<uint32_t>(in->layout.stripe_unit, 4096); |
7c673cae FG |
7339 | |
7340 | /* Type bits are always set, even when CEPH_STATX_MODE is not */ | |
7341 | stx->stx_mode = S_IFMT & in->mode; | |
7342 | stx->stx_ino = use_faked_inos() ? in->faked_ino : (ino_t)in->ino; | |
7343 | stx->stx_rdev = in->rdev; | |
7344 | stx->stx_mask |= (CEPH_STATX_INO|CEPH_STATX_RDEV); | |
7345 | ||
7346 | if (mask & CEPH_CAP_AUTH_SHARED) { | |
7347 | stx->stx_uid = in->uid; | |
7348 | stx->stx_gid = in->gid; | |
7349 | stx->stx_mode = in->mode; | |
7350 | in->btime.to_timespec(&stx->stx_btime); | |
7351 | stx->stx_mask |= (CEPH_STATX_MODE|CEPH_STATX_UID|CEPH_STATX_GID|CEPH_STATX_BTIME); | |
7352 | } | |
7353 | ||
7354 | if (mask & CEPH_CAP_LINK_SHARED) { | |
28e407b8 AA |
7355 | if (in->is_dir()) { |
7356 | switch (in->nlink) { | |
7357 | case 0: | |
7358 | stx->stx_nlink = 0; /* dir is unlinked */ | |
7359 | break; | |
7360 | case 1: | |
7361 | stx->stx_nlink = 1 /* parent dentry */ | |
7362 | + 1 /* <dir>/. */ | |
7363 | + in->dirstat.nsubdirs; /* include <dir>/. self-reference */ | |
7364 | break; | |
7365 | default: | |
7366 | ceph_abort(); | |
7367 | } | |
7368 | } else { | |
7369 | stx->stx_nlink = in->nlink; | |
7370 | } | |
7c673cae FG |
7371 | stx->stx_mask |= CEPH_STATX_NLINK; |
7372 | } | |
7373 | ||
7374 | if (mask & CEPH_CAP_FILE_SHARED) { | |
7375 | ||
7376 | in->atime.to_timespec(&stx->stx_atime); | |
7377 | in->mtime.to_timespec(&stx->stx_mtime); | |
7378 | ||
7379 | if (in->is_dir()) { | |
7380 | if (cct->_conf->client_dirsize_rbytes) | |
7381 | stx->stx_size = in->rstat.rbytes; | |
7382 | else | |
7383 | stx->stx_size = in->dirstat.size(); | |
7384 | stx->stx_blocks = 1; | |
7385 | } else { | |
7386 | stx->stx_size = in->size; | |
7387 | stx->stx_blocks = (in->size + 511) >> 9; | |
7388 | } | |
7389 | stx->stx_mask |= (CEPH_STATX_ATIME|CEPH_STATX_MTIME| | |
7390 | CEPH_STATX_SIZE|CEPH_STATX_BLOCKS); | |
7391 | } | |
7392 | ||
7393 | /* Change time and change_attr both require all shared caps to view */ | |
7394 | if ((mask & CEPH_STAT_CAP_INODE_ALL) == CEPH_STAT_CAP_INODE_ALL) { | |
7395 | stx->stx_version = in->change_attr; | |
7396 | if (in->ctime > in->mtime) | |
7397 | in->ctime.to_timespec(&stx->stx_ctime); | |
7398 | else | |
7399 | in->mtime.to_timespec(&stx->stx_ctime); | |
7400 | stx->stx_mask |= (CEPH_STATX_CTIME|CEPH_STATX_VERSION); | |
7401 | } | |
7402 | ||
7403 | } | |
7404 | ||
7405 | void Client::touch_dn(Dentry *dn) | |
7406 | { | |
7407 | lru.lru_touch(dn); | |
7408 | } | |
7409 | ||
7410 | int Client::chmod(const char *relpath, mode_t mode, const UserPerm& perms) | |
7411 | { | |
11fdf7f2 TL |
7412 | std::lock_guard lock(client_lock); |
7413 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
7414 | tout(cct) << relpath << std::endl; |
7415 | tout(cct) << mode << std::endl; | |
181888fb FG |
7416 | |
7417 | if (unmounting) | |
7418 | return -ENOTCONN; | |
7419 | ||
7c673cae FG |
7420 | filepath path(relpath); |
7421 | InodeRef in; | |
7422 | int r = path_walk(path, &in, perms); | |
7423 | if (r < 0) | |
7424 | return r; | |
7425 | struct stat attr; | |
7426 | attr.st_mode = mode; | |
7427 | return _setattr(in, &attr, CEPH_SETATTR_MODE, perms); | |
7428 | } | |
7429 | ||
7430 | int Client::fchmod(int fd, mode_t mode, const UserPerm& perms) | |
7431 | { | |
11fdf7f2 TL |
7432 | std::lock_guard lock(client_lock); |
7433 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
7434 | tout(cct) << fd << std::endl; |
7435 | tout(cct) << mode << std::endl; | |
181888fb FG |
7436 | |
7437 | if (unmounting) | |
7438 | return -ENOTCONN; | |
7439 | ||
7c673cae FG |
7440 | Fh *f = get_filehandle(fd); |
7441 | if (!f) | |
7442 | return -EBADF; | |
7443 | #if defined(__linux__) && defined(O_PATH) | |
7444 | if (f->flags & O_PATH) | |
7445 | return -EBADF; | |
7446 | #endif | |
7447 | struct stat attr; | |
7448 | attr.st_mode = mode; | |
7449 | return _setattr(f->inode, &attr, CEPH_SETATTR_MODE, perms); | |
7450 | } | |
7451 | ||
7452 | int Client::lchmod(const char *relpath, mode_t mode, const UserPerm& perms) | |
7453 | { | |
11fdf7f2 TL |
7454 | std::lock_guard lock(client_lock); |
7455 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
7456 | tout(cct) << relpath << std::endl; |
7457 | tout(cct) << mode << std::endl; | |
181888fb FG |
7458 | |
7459 | if (unmounting) | |
7460 | return -ENOTCONN; | |
7461 | ||
7c673cae FG |
7462 | filepath path(relpath); |
7463 | InodeRef in; | |
7464 | // don't follow symlinks | |
7465 | int r = path_walk(path, &in, perms, false); | |
7466 | if (r < 0) | |
7467 | return r; | |
7468 | struct stat attr; | |
7469 | attr.st_mode = mode; | |
7470 | return _setattr(in, &attr, CEPH_SETATTR_MODE, perms); | |
7471 | } | |
7472 | ||
7473 | int Client::chown(const char *relpath, uid_t new_uid, gid_t new_gid, | |
7474 | const UserPerm& perms) | |
7475 | { | |
11fdf7f2 TL |
7476 | std::lock_guard lock(client_lock); |
7477 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
7478 | tout(cct) << relpath << std::endl; |
7479 | tout(cct) << new_uid << std::endl; | |
7480 | tout(cct) << new_gid << std::endl; | |
181888fb FG |
7481 | |
7482 | if (unmounting) | |
7483 | return -ENOTCONN; | |
7484 | ||
7c673cae FG |
7485 | filepath path(relpath); |
7486 | InodeRef in; | |
7487 | int r = path_walk(path, &in, perms); | |
7488 | if (r < 0) | |
7489 | return r; | |
7490 | struct stat attr; | |
7491 | attr.st_uid = new_uid; | |
7492 | attr.st_gid = new_gid; | |
181888fb | 7493 | return _setattr(in, &attr, CEPH_SETATTR_UID|CEPH_SETATTR_GID, perms); |
7c673cae FG |
7494 | } |
7495 | ||
7496 | int Client::fchown(int fd, uid_t new_uid, gid_t new_gid, const UserPerm& perms) | |
7497 | { | |
11fdf7f2 TL |
7498 | std::lock_guard lock(client_lock); |
7499 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
7500 | tout(cct) << fd << std::endl; |
7501 | tout(cct) << new_uid << std::endl; | |
7502 | tout(cct) << new_gid << std::endl; | |
181888fb FG |
7503 | |
7504 | if (unmounting) | |
7505 | return -ENOTCONN; | |
7506 | ||
7c673cae FG |
7507 | Fh *f = get_filehandle(fd); |
7508 | if (!f) | |
7509 | return -EBADF; | |
7510 | #if defined(__linux__) && defined(O_PATH) | |
7511 | if (f->flags & O_PATH) | |
7512 | return -EBADF; | |
7513 | #endif | |
7514 | struct stat attr; | |
7515 | attr.st_uid = new_uid; | |
7516 | attr.st_gid = new_gid; | |
7517 | int mask = 0; | |
7518 | if (new_uid != static_cast<uid_t>(-1)) mask |= CEPH_SETATTR_UID; | |
7519 | if (new_gid != static_cast<gid_t>(-1)) mask |= CEPH_SETATTR_GID; | |
7520 | return _setattr(f->inode, &attr, mask, perms); | |
7521 | } | |
7522 | ||
7523 | int Client::lchown(const char *relpath, uid_t new_uid, gid_t new_gid, | |
7524 | const UserPerm& perms) | |
7525 | { | |
11fdf7f2 TL |
7526 | std::lock_guard lock(client_lock); |
7527 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
7528 | tout(cct) << relpath << std::endl; |
7529 | tout(cct) << new_uid << std::endl; | |
7530 | tout(cct) << new_gid << std::endl; | |
181888fb FG |
7531 | |
7532 | if (unmounting) | |
7533 | return -ENOTCONN; | |
7534 | ||
7c673cae FG |
7535 | filepath path(relpath); |
7536 | InodeRef in; | |
7537 | // don't follow symlinks | |
7538 | int r = path_walk(path, &in, perms, false); | |
7539 | if (r < 0) | |
7540 | return r; | |
7541 | struct stat attr; | |
7542 | attr.st_uid = new_uid; | |
7543 | attr.st_gid = new_gid; | |
7544 | int mask = 0; | |
7545 | if (new_uid != static_cast<uid_t>(-1)) mask |= CEPH_SETATTR_UID; | |
7546 | if (new_gid != static_cast<gid_t>(-1)) mask |= CEPH_SETATTR_GID; | |
7547 | return _setattr(in, &attr, mask, perms); | |
7548 | } | |
7549 | ||
11fdf7f2 TL |
7550 | static void attr_set_atime_and_mtime(struct stat *attr, |
7551 | const utime_t &atime, | |
7552 | const utime_t &mtime) | |
7553 | { | |
7554 | stat_set_atime_sec(attr, atime.tv.tv_sec); | |
7555 | stat_set_atime_nsec(attr, atime.tv.tv_nsec); | |
7556 | stat_set_mtime_sec(attr, mtime.tv.tv_sec); | |
7557 | stat_set_mtime_nsec(attr, mtime.tv.tv_nsec); | |
7558 | } | |
7559 | ||
7560 | // for [l]utime() invoke the timeval variant as the timespec | |
7561 | // variant are not yet implemented. for futime[s](), invoke | |
7562 | // the timespec variant. | |
7c673cae FG |
7563 | int Client::utime(const char *relpath, struct utimbuf *buf, |
7564 | const UserPerm& perms) | |
7565 | { | |
11fdf7f2 TL |
7566 | struct timeval tv[2]; |
7567 | tv[0].tv_sec = buf->actime; | |
7568 | tv[0].tv_usec = 0; | |
7569 | tv[1].tv_sec = buf->modtime; | |
7570 | tv[1].tv_usec = 0; | |
7571 | ||
7572 | return utimes(relpath, tv, perms); | |
7573 | } | |
7574 | ||
7575 | int Client::lutime(const char *relpath, struct utimbuf *buf, | |
7576 | const UserPerm& perms) | |
7577 | { | |
7578 | struct timeval tv[2]; | |
7579 | tv[0].tv_sec = buf->actime; | |
7580 | tv[0].tv_usec = 0; | |
7581 | tv[1].tv_sec = buf->modtime; | |
7582 | tv[1].tv_usec = 0; | |
7583 | ||
7584 | return lutimes(relpath, tv, perms); | |
7585 | } | |
7586 | ||
7587 | int Client::futime(int fd, struct utimbuf *buf, const UserPerm& perms) | |
7588 | { | |
7589 | struct timespec ts[2]; | |
7590 | ts[0].tv_sec = buf->actime; | |
7591 | ts[0].tv_nsec = 0; | |
7592 | ts[1].tv_sec = buf->modtime; | |
7593 | ts[1].tv_nsec = 0; | |
7594 | ||
7595 | return futimens(fd, ts, perms); | |
7596 | } | |
7597 | ||
7598 | int Client::utimes(const char *relpath, struct timeval times[2], | |
7599 | const UserPerm& perms) | |
7600 | { | |
7601 | std::lock_guard lock(client_lock); | |
7602 | tout(cct) << __func__ << std::endl; | |
7c673cae | 7603 | tout(cct) << relpath << std::endl; |
11fdf7f2 TL |
7604 | tout(cct) << "atime: " << times[0].tv_sec << "." << times[0].tv_usec |
7605 | << std::endl; | |
7606 | tout(cct) << "mtime: " << times[1].tv_sec << "." << times[1].tv_usec | |
7607 | << std::endl; | |
181888fb FG |
7608 | |
7609 | if (unmounting) | |
7610 | return -ENOTCONN; | |
7611 | ||
7c673cae FG |
7612 | filepath path(relpath); |
7613 | InodeRef in; | |
7614 | int r = path_walk(path, &in, perms); | |
7615 | if (r < 0) | |
7616 | return r; | |
7617 | struct stat attr; | |
11fdf7f2 TL |
7618 | utime_t atime(times[0]); |
7619 | utime_t mtime(times[1]); | |
7620 | ||
7621 | attr_set_atime_and_mtime(&attr, atime, mtime); | |
7c673cae FG |
7622 | return _setattr(in, &attr, CEPH_SETATTR_MTIME|CEPH_SETATTR_ATIME, perms); |
7623 | } | |
7624 | ||
11fdf7f2 TL |
7625 | int Client::lutimes(const char *relpath, struct timeval times[2], |
7626 | const UserPerm& perms) | |
7c673cae | 7627 | { |
11fdf7f2 TL |
7628 | std::lock_guard lock(client_lock); |
7629 | tout(cct) << __func__ << std::endl; | |
7c673cae | 7630 | tout(cct) << relpath << std::endl; |
11fdf7f2 TL |
7631 | tout(cct) << "atime: " << times[0].tv_sec << "." << times[0].tv_usec |
7632 | << std::endl; | |
7633 | tout(cct) << "mtime: " << times[1].tv_sec << "." << times[1].tv_usec | |
7634 | << std::endl; | |
181888fb FG |
7635 | |
7636 | if (unmounting) | |
7637 | return -ENOTCONN; | |
7638 | ||
7c673cae FG |
7639 | filepath path(relpath); |
7640 | InodeRef in; | |
7c673cae FG |
7641 | int r = path_walk(path, &in, perms, false); |
7642 | if (r < 0) | |
7643 | return r; | |
7644 | struct stat attr; | |
11fdf7f2 TL |
7645 | utime_t atime(times[0]); |
7646 | utime_t mtime(times[1]); | |
7647 | ||
7648 | attr_set_atime_and_mtime(&attr, atime, mtime); | |
7c673cae FG |
7649 | return _setattr(in, &attr, CEPH_SETATTR_MTIME|CEPH_SETATTR_ATIME, perms); |
7650 | } | |
7651 | ||
11fdf7f2 TL |
7652 | int Client::futimes(int fd, struct timeval times[2], const UserPerm& perms) |
7653 | { | |
7654 | struct timespec ts[2]; | |
7655 | ts[0].tv_sec = times[0].tv_sec; | |
7656 | ts[0].tv_nsec = times[0].tv_usec * 1000; | |
7657 | ts[1].tv_sec = times[1].tv_sec; | |
7658 | ts[1].tv_nsec = times[1].tv_usec * 1000; | |
7659 | ||
7660 | return futimens(fd, ts, perms); | |
7661 | } | |
7662 | ||
7663 | int Client::futimens(int fd, struct timespec times[2], const UserPerm& perms) | |
7664 | { | |
7665 | std::lock_guard lock(client_lock); | |
7666 | tout(cct) << __func__ << std::endl; | |
7667 | tout(cct) << fd << std::endl; | |
7668 | tout(cct) << "atime: " << times[0].tv_sec << "." << times[0].tv_nsec | |
7669 | << std::endl; | |
7670 | tout(cct) << "mtime: " << times[1].tv_sec << "." << times[1].tv_nsec | |
7671 | << std::endl; | |
7672 | ||
7673 | if (unmounting) | |
7674 | return -ENOTCONN; | |
7675 | ||
7676 | Fh *f = get_filehandle(fd); | |
7677 | if (!f) | |
7678 | return -EBADF; | |
7679 | #if defined(__linux__) && defined(O_PATH) | |
7680 | if (f->flags & O_PATH) | |
7681 | return -EBADF; | |
7682 | #endif | |
7683 | struct stat attr; | |
7684 | utime_t atime(times[0]); | |
7685 | utime_t mtime(times[1]); | |
7686 | ||
7687 | attr_set_atime_and_mtime(&attr, atime, mtime); | |
7688 | return _setattr(f->inode, &attr, CEPH_SETATTR_MTIME|CEPH_SETATTR_ATIME, perms); | |
7689 | } | |
7690 | ||
7c673cae FG |
7691 | int Client::flock(int fd, int operation, uint64_t owner) |
7692 | { | |
11fdf7f2 TL |
7693 | std::lock_guard lock(client_lock); |
7694 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
7695 | tout(cct) << fd << std::endl; |
7696 | tout(cct) << operation << std::endl; | |
7697 | tout(cct) << owner << std::endl; | |
181888fb FG |
7698 | |
7699 | if (unmounting) | |
7700 | return -ENOTCONN; | |
7701 | ||
7c673cae FG |
7702 | Fh *f = get_filehandle(fd); |
7703 | if (!f) | |
7704 | return -EBADF; | |
7705 | ||
7706 | return _flock(f, operation, owner); | |
7707 | } | |
7708 | ||
7709 | int Client::opendir(const char *relpath, dir_result_t **dirpp, const UserPerm& perms) | |
7710 | { | |
11fdf7f2 TL |
7711 | std::lock_guard lock(client_lock); |
7712 | tout(cct) << __func__ << std::endl; | |
7c673cae | 7713 | tout(cct) << relpath << std::endl; |
181888fb FG |
7714 | |
7715 | if (unmounting) | |
7716 | return -ENOTCONN; | |
7717 | ||
7c673cae FG |
7718 | filepath path(relpath); |
7719 | InodeRef in; | |
7720 | int r = path_walk(path, &in, perms, true); | |
7721 | if (r < 0) | |
7722 | return r; | |
7723 | if (cct->_conf->client_permissions) { | |
7724 | int r = may_open(in.get(), O_RDONLY, perms); | |
7725 | if (r < 0) | |
7726 | return r; | |
7727 | } | |
7728 | r = _opendir(in.get(), dirpp, perms); | |
7729 | /* if ENOTDIR, dirpp will be an uninitialized point and it's very dangerous to access its value */ | |
7730 | if (r != -ENOTDIR) | |
7731 | tout(cct) << (unsigned long)*dirpp << std::endl; | |
7732 | return r; | |
7733 | } | |
7734 | ||
7735 | int Client::_opendir(Inode *in, dir_result_t **dirpp, const UserPerm& perms) | |
7736 | { | |
7737 | if (!in->is_dir()) | |
7738 | return -ENOTDIR; | |
7739 | *dirpp = new dir_result_t(in, perms); | |
7740 | opened_dirs.insert(*dirpp); | |
11fdf7f2 | 7741 | ldout(cct, 8) << __func__ << "(" << in->ino << ") = " << 0 << " (" << *dirpp << ")" << dendl; |
7c673cae FG |
7742 | return 0; |
7743 | } | |
7744 | ||
7745 | ||
7746 | int Client::closedir(dir_result_t *dir) | |
7747 | { | |
11fdf7f2 TL |
7748 | std::lock_guard lock(client_lock); |
7749 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
7750 | tout(cct) << (unsigned long)dir << std::endl; |
7751 | ||
11fdf7f2 | 7752 | ldout(cct, 3) << __func__ << "(" << dir << ") = 0" << dendl; |
7c673cae FG |
7753 | _closedir(dir); |
7754 | return 0; | |
7755 | } | |
7756 | ||
7757 | void Client::_closedir(dir_result_t *dirp) | |
7758 | { | |
11fdf7f2 | 7759 | ldout(cct, 10) << __func__ << "(" << dirp << ")" << dendl; |
7c673cae | 7760 | if (dirp->inode) { |
11fdf7f2 | 7761 | ldout(cct, 10) << __func__ << " detaching inode " << dirp->inode << dendl; |
7c673cae FG |
7762 | dirp->inode.reset(); |
7763 | } | |
7764 | _readdir_drop_dirp_buffer(dirp); | |
7765 | opened_dirs.erase(dirp); | |
7766 | delete dirp; | |
7767 | } | |
7768 | ||
7769 | void Client::rewinddir(dir_result_t *dirp) | |
7770 | { | |
11fdf7f2 TL |
7771 | std::lock_guard lock(client_lock); |
7772 | ldout(cct, 3) << __func__ << "(" << dirp << ")" << dendl; | |
181888fb FG |
7773 | |
7774 | if (unmounting) | |
7775 | return; | |
7776 | ||
7c673cae FG |
7777 | dir_result_t *d = static_cast<dir_result_t*>(dirp); |
7778 | _readdir_drop_dirp_buffer(d); | |
7779 | d->reset(); | |
7780 | } | |
7781 | ||
7782 | loff_t Client::telldir(dir_result_t *dirp) | |
7783 | { | |
7784 | dir_result_t *d = static_cast<dir_result_t*>(dirp); | |
11fdf7f2 | 7785 | ldout(cct, 3) << __func__ << "(" << dirp << ") = " << d->offset << dendl; |
7c673cae FG |
7786 | return d->offset; |
7787 | } | |
7788 | ||
7789 | void Client::seekdir(dir_result_t *dirp, loff_t offset) | |
7790 | { | |
11fdf7f2 | 7791 | std::lock_guard lock(client_lock); |
7c673cae | 7792 | |
11fdf7f2 | 7793 | ldout(cct, 3) << __func__ << "(" << dirp << ", " << offset << ")" << dendl; |
7c673cae | 7794 | |
181888fb FG |
7795 | if (unmounting) |
7796 | return; | |
7797 | ||
7c673cae FG |
7798 | if (offset == dirp->offset) |
7799 | return; | |
7800 | ||
7801 | if (offset > dirp->offset) | |
7802 | dirp->release_count = 0; // bump if we do a forward seek | |
7803 | else | |
7804 | dirp->ordered_count = 0; // disable filling readdir cache | |
7805 | ||
7806 | if (dirp->hash_order()) { | |
7807 | if (dirp->offset > offset) { | |
7808 | _readdir_drop_dirp_buffer(dirp); | |
7809 | dirp->reset(); | |
7810 | } | |
7811 | } else { | |
7812 | if (offset == 0 || | |
7813 | dirp->buffer_frag != frag_t(dir_result_t::fpos_high(offset)) || | |
7814 | dirp->offset_low() > dir_result_t::fpos_low(offset)) { | |
7815 | _readdir_drop_dirp_buffer(dirp); | |
7816 | dirp->reset(); | |
7817 | } | |
7818 | } | |
7819 | ||
7820 | dirp->offset = offset; | |
7821 | } | |
7822 | ||
7823 | ||
7824 | //struct dirent { | |
7825 | // ino_t d_ino; /* inode number */ | |
7826 | // off_t d_off; /* offset to the next dirent */ | |
7827 | // unsigned short d_reclen; /* length of this record */ | |
7828 | // unsigned char d_type; /* type of file */ | |
7829 | // char d_name[256]; /* filename */ | |
7830 | //}; | |
7831 | void Client::fill_dirent(struct dirent *de, const char *name, int type, uint64_t ino, loff_t next_off) | |
7832 | { | |
7833 | strncpy(de->d_name, name, 255); | |
7834 | de->d_name[255] = '\0'; | |
7835 | #ifndef __CYGWIN__ | |
7836 | de->d_ino = ino; | |
11fdf7f2 | 7837 | #if !defined(__APPLE__) && !defined(__FreeBSD__) |
7c673cae FG |
7838 | de->d_off = next_off; |
7839 | #endif | |
7840 | de->d_reclen = 1; | |
7841 | de->d_type = IFTODT(type); | |
11fdf7f2 | 7842 | ldout(cct, 10) << __func__ << " '" << de->d_name << "' -> " << inodeno_t(de->d_ino) |
7c673cae FG |
7843 | << " type " << (int)de->d_type << " w/ next_off " << hex << next_off << dec << dendl; |
7844 | #endif | |
7845 | } | |
7846 | ||
7847 | void Client::_readdir_next_frag(dir_result_t *dirp) | |
7848 | { | |
7849 | frag_t fg = dirp->buffer_frag; | |
7850 | ||
7851 | if (fg.is_rightmost()) { | |
11fdf7f2 | 7852 | ldout(cct, 10) << __func__ << " advance from " << fg << " to END" << dendl; |
7c673cae FG |
7853 | dirp->set_end(); |
7854 | return; | |
7855 | } | |
7856 | ||
7857 | // advance | |
7858 | fg = fg.next(); | |
11fdf7f2 | 7859 | ldout(cct, 10) << __func__ << " advance from " << dirp->buffer_frag << " to " << fg << dendl; |
7c673cae FG |
7860 | |
7861 | if (dirp->hash_order()) { | |
7862 | // keep last_name | |
7863 | int64_t new_offset = dir_result_t::make_fpos(fg.value(), 2, true); | |
7864 | if (dirp->offset < new_offset) // don't decrease offset | |
7865 | dirp->offset = new_offset; | |
7866 | } else { | |
7867 | dirp->last_name.clear(); | |
7868 | dirp->offset = dir_result_t::make_fpos(fg, 2, false); | |
7869 | _readdir_rechoose_frag(dirp); | |
7870 | } | |
7871 | } | |
7872 | ||
7873 | void Client::_readdir_rechoose_frag(dir_result_t *dirp) | |
7874 | { | |
11fdf7f2 | 7875 | ceph_assert(dirp->inode); |
7c673cae FG |
7876 | |
7877 | if (dirp->hash_order()) | |
7878 | return; | |
7879 | ||
7880 | frag_t cur = frag_t(dirp->offset_high()); | |
7881 | frag_t fg = dirp->inode->dirfragtree[cur.value()]; | |
7882 | if (fg != cur) { | |
11fdf7f2 | 7883 | ldout(cct, 10) << __func__ << " frag " << cur << " maps to " << fg << dendl; |
7c673cae FG |
7884 | dirp->offset = dir_result_t::make_fpos(fg, 2, false); |
7885 | dirp->last_name.clear(); | |
7886 | dirp->next_offset = 2; | |
7887 | } | |
7888 | } | |
7889 | ||
7890 | void Client::_readdir_drop_dirp_buffer(dir_result_t *dirp) | |
7891 | { | |
11fdf7f2 | 7892 | ldout(cct, 10) << __func__ << " " << dirp << dendl; |
7c673cae FG |
7893 | dirp->buffer.clear(); |
7894 | } | |
7895 | ||
7896 | int Client::_readdir_get_frag(dir_result_t *dirp) | |
7897 | { | |
11fdf7f2 TL |
7898 | ceph_assert(dirp); |
7899 | ceph_assert(dirp->inode); | |
7c673cae FG |
7900 | |
7901 | // get the current frag. | |
7902 | frag_t fg; | |
7903 | if (dirp->hash_order()) | |
7904 | fg = dirp->inode->dirfragtree[dirp->offset_high()]; | |
7905 | else | |
7906 | fg = frag_t(dirp->offset_high()); | |
7907 | ||
11fdf7f2 | 7908 | ldout(cct, 10) << __func__ << " " << dirp << " on " << dirp->inode->ino << " fg " << fg |
7c673cae FG |
7909 | << " offset " << hex << dirp->offset << dec << dendl; |
7910 | ||
7911 | int op = CEPH_MDS_OP_READDIR; | |
7912 | if (dirp->inode && dirp->inode->snapid == CEPH_SNAPDIR) | |
7913 | op = CEPH_MDS_OP_LSSNAP; | |
7914 | ||
7915 | InodeRef& diri = dirp->inode; | |
7916 | ||
7917 | MetaRequest *req = new MetaRequest(op); | |
7918 | filepath path; | |
7919 | diri->make_nosnap_relative_path(path); | |
7920 | req->set_filepath(path); | |
7921 | req->set_inode(diri.get()); | |
7922 | req->head.args.readdir.frag = fg; | |
7923 | req->head.args.readdir.flags = CEPH_READDIR_REPLY_BITFLAGS; | |
7924 | if (dirp->last_name.length()) { | |
94b18763 | 7925 | req->path2.set_path(dirp->last_name); |
7c673cae FG |
7926 | } else if (dirp->hash_order()) { |
7927 | req->head.args.readdir.offset_hash = dirp->offset_high(); | |
7928 | } | |
7929 | req->dirp = dirp; | |
7930 | ||
7931 | bufferlist dirbl; | |
7932 | int res = make_request(req, dirp->perms, NULL, NULL, -1, &dirbl); | |
7933 | ||
7934 | if (res == -EAGAIN) { | |
11fdf7f2 | 7935 | ldout(cct, 10) << __func__ << " got EAGAIN, retrying" << dendl; |
7c673cae FG |
7936 | _readdir_rechoose_frag(dirp); |
7937 | return _readdir_get_frag(dirp); | |
7938 | } | |
7939 | ||
7940 | if (res == 0) { | |
11fdf7f2 | 7941 | ldout(cct, 10) << __func__ << " " << dirp << " got frag " << dirp->buffer_frag |
7c673cae FG |
7942 | << " size " << dirp->buffer.size() << dendl; |
7943 | } else { | |
11fdf7f2 | 7944 | ldout(cct, 10) << __func__ << " got error " << res << ", setting end flag" << dendl; |
7c673cae FG |
7945 | dirp->set_end(); |
7946 | } | |
7947 | ||
7948 | return res; | |
7949 | } | |
7950 | ||
7951 | struct dentry_off_lt { | |
7952 | bool operator()(const Dentry* dn, int64_t off) const { | |
7953 | return dir_result_t::fpos_cmp(dn->offset, off) < 0; | |
7954 | } | |
7955 | }; | |
7956 | ||
7957 | int Client::_readdir_cache_cb(dir_result_t *dirp, add_dirent_cb_t cb, void *p, | |
7958 | int caps, bool getref) | |
7959 | { | |
11fdf7f2 TL |
7960 | ceph_assert(client_lock.is_locked()); |
7961 | ldout(cct, 10) << __func__ << " " << dirp << " on " << dirp->inode->ino | |
7c673cae FG |
7962 | << " last_name " << dirp->last_name << " offset " << hex << dirp->offset << dec |
7963 | << dendl; | |
7964 | Dir *dir = dirp->inode->dir; | |
7965 | ||
7966 | if (!dir) { | |
7967 | ldout(cct, 10) << " dir is empty" << dendl; | |
7968 | dirp->set_end(); | |
7969 | return 0; | |
7970 | } | |
7971 | ||
7972 | vector<Dentry*>::iterator pd = std::lower_bound(dir->readdir_cache.begin(), | |
7973 | dir->readdir_cache.end(), | |
7974 | dirp->offset, dentry_off_lt()); | |
7975 | ||
7976 | string dn_name; | |
7977 | while (true) { | |
7978 | if (!dirp->inode->is_complete_and_ordered()) | |
7979 | return -EAGAIN; | |
7980 | if (pd == dir->readdir_cache.end()) | |
7981 | break; | |
7982 | Dentry *dn = *pd; | |
7983 | if (dn->inode == NULL) { | |
7984 | ldout(cct, 15) << " skipping null '" << dn->name << "'" << dendl; | |
7985 | ++pd; | |
7986 | continue; | |
7987 | } | |
7988 | if (dn->cap_shared_gen != dir->parent_inode->shared_gen) { | |
7989 | ldout(cct, 15) << " skipping mismatch shared gen '" << dn->name << "'" << dendl; | |
7990 | ++pd; | |
7991 | continue; | |
7992 | } | |
7993 | ||
7994 | int r = _getattr(dn->inode, caps, dirp->perms); | |
7995 | if (r < 0) | |
7996 | return r; | |
7997 | ||
7998 | struct ceph_statx stx; | |
7999 | struct dirent de; | |
8000 | fill_statx(dn->inode, caps, &stx); | |
8001 | ||
8002 | uint64_t next_off = dn->offset + 1; | |
8003 | ++pd; | |
8004 | if (pd == dir->readdir_cache.end()) | |
8005 | next_off = dir_result_t::END; | |
8006 | ||
8007 | Inode *in = NULL; | |
8008 | fill_dirent(&de, dn->name.c_str(), stx.stx_mode, stx.stx_ino, next_off); | |
8009 | if (getref) { | |
8010 | in = dn->inode.get(); | |
8011 | _ll_get(in); | |
8012 | } | |
8013 | ||
8014 | dn_name = dn->name; // fill in name while we have lock | |
8015 | ||
8016 | client_lock.Unlock(); | |
8017 | r = cb(p, &de, &stx, next_off, in); // _next_ offset | |
8018 | client_lock.Lock(); | |
8019 | ldout(cct, 15) << " de " << de.d_name << " off " << hex << dn->offset << dec | |
8020 | << " = " << r << dendl; | |
8021 | if (r < 0) { | |
8022 | return r; | |
8023 | } | |
8024 | ||
8025 | dirp->offset = next_off; | |
8026 | if (dirp->at_end()) | |
8027 | dirp->next_offset = 2; | |
8028 | else | |
8029 | dirp->next_offset = dirp->offset_low(); | |
8030 | dirp->last_name = dn_name; // we successfully returned this one; update! | |
28e407b8 | 8031 | dirp->release_count = 0; // last_name no longer match cache index |
7c673cae FG |
8032 | if (r > 0) |
8033 | return r; | |
8034 | } | |
8035 | ||
11fdf7f2 | 8036 | ldout(cct, 10) << __func__ << " " << dirp << " on " << dirp->inode->ino << " at end" << dendl; |
7c673cae FG |
8037 | dirp->set_end(); |
8038 | return 0; | |
8039 | } | |
8040 | ||
8041 | int Client::readdir_r_cb(dir_result_t *d, add_dirent_cb_t cb, void *p, | |
8042 | unsigned want, unsigned flags, bool getref) | |
8043 | { | |
8044 | int caps = statx_to_mask(flags, want); | |
8045 | ||
11fdf7f2 | 8046 | std::lock_guard lock(client_lock); |
7c673cae | 8047 | |
181888fb FG |
8048 | if (unmounting) |
8049 | return -ENOTCONN; | |
8050 | ||
7c673cae FG |
8051 | dir_result_t *dirp = static_cast<dir_result_t*>(d); |
8052 | ||
11fdf7f2 | 8053 | ldout(cct, 10) << __func__ << " " << *dirp->inode << " offset " << hex << dirp->offset |
7c673cae FG |
8054 | << dec << " at_end=" << dirp->at_end() |
8055 | << " hash_order=" << dirp->hash_order() << dendl; | |
8056 | ||
8057 | struct dirent de; | |
8058 | struct ceph_statx stx; | |
8059 | memset(&de, 0, sizeof(de)); | |
8060 | memset(&stx, 0, sizeof(stx)); | |
8061 | ||
8062 | InodeRef& diri = dirp->inode; | |
8063 | ||
8064 | if (dirp->at_end()) | |
8065 | return 0; | |
8066 | ||
8067 | if (dirp->offset == 0) { | |
8068 | ldout(cct, 15) << " including ." << dendl; | |
11fdf7f2 | 8069 | ceph_assert(diri->dentries.size() < 2); // can't have multiple hard-links to a dir |
7c673cae FG |
8070 | uint64_t next_off = 1; |
8071 | ||
8072 | int r; | |
8073 | r = _getattr(diri, caps, dirp->perms); | |
8074 | if (r < 0) | |
8075 | return r; | |
8076 | ||
8077 | fill_statx(diri, caps, &stx); | |
8078 | fill_dirent(&de, ".", S_IFDIR, stx.stx_ino, next_off); | |
8079 | ||
8080 | Inode *inode = NULL; | |
8081 | if (getref) { | |
8082 | inode = diri.get(); | |
8083 | _ll_get(inode); | |
8084 | } | |
8085 | ||
8086 | client_lock.Unlock(); | |
8087 | r = cb(p, &de, &stx, next_off, inode); | |
8088 | client_lock.Lock(); | |
8089 | if (r < 0) | |
8090 | return r; | |
8091 | ||
8092 | dirp->offset = next_off; | |
8093 | if (r > 0) | |
8094 | return r; | |
8095 | } | |
8096 | if (dirp->offset == 1) { | |
8097 | ldout(cct, 15) << " including .." << dendl; | |
8098 | uint64_t next_off = 2; | |
8099 | InodeRef in; | |
11fdf7f2 | 8100 | if (diri->dentries.empty()) |
7c673cae FG |
8101 | in = diri; |
8102 | else | |
94b18763 | 8103 | in = diri->get_first_parent()->dir->parent_inode; |
7c673cae FG |
8104 | |
8105 | int r; | |
94b18763 | 8106 | r = _getattr(in, caps, dirp->perms); |
7c673cae FG |
8107 | if (r < 0) |
8108 | return r; | |
8109 | ||
8110 | fill_statx(in, caps, &stx); | |
8111 | fill_dirent(&de, "..", S_IFDIR, stx.stx_ino, next_off); | |
8112 | ||
8113 | Inode *inode = NULL; | |
8114 | if (getref) { | |
8115 | inode = in.get(); | |
8116 | _ll_get(inode); | |
8117 | } | |
8118 | ||
8119 | client_lock.Unlock(); | |
8120 | r = cb(p, &de, &stx, next_off, inode); | |
8121 | client_lock.Lock(); | |
8122 | if (r < 0) | |
8123 | return r; | |
8124 | ||
8125 | dirp->offset = next_off; | |
8126 | if (r > 0) | |
8127 | return r; | |
8128 | } | |
8129 | ||
8130 | // can we read from our cache? | |
8131 | ldout(cct, 10) << "offset " << hex << dirp->offset << dec | |
8132 | << " snapid " << dirp->inode->snapid << " (complete && ordered) " | |
8133 | << dirp->inode->is_complete_and_ordered() | |
8134 | << " issued " << ccap_string(dirp->inode->caps_issued()) | |
8135 | << dendl; | |
8136 | if (dirp->inode->snapid != CEPH_SNAPDIR && | |
8137 | dirp->inode->is_complete_and_ordered() && | |
94b18763 | 8138 | dirp->inode->caps_issued_mask(CEPH_CAP_FILE_SHARED, true)) { |
7c673cae FG |
8139 | int err = _readdir_cache_cb(dirp, cb, p, caps, getref); |
8140 | if (err != -EAGAIN) | |
8141 | return err; | |
8142 | } | |
8143 | ||
8144 | while (1) { | |
8145 | if (dirp->at_end()) | |
8146 | return 0; | |
8147 | ||
8148 | bool check_caps = true; | |
8149 | if (!dirp->is_cached()) { | |
8150 | int r = _readdir_get_frag(dirp); | |
8151 | if (r) | |
8152 | return r; | |
8153 | // _readdir_get_frag () may updates dirp->offset if the replied dirfrag is | |
8154 | // different than the requested one. (our dirfragtree was outdated) | |
8155 | check_caps = false; | |
8156 | } | |
8157 | frag_t fg = dirp->buffer_frag; | |
8158 | ||
8159 | ldout(cct, 10) << "frag " << fg << " buffer size " << dirp->buffer.size() | |
8160 | << " offset " << hex << dirp->offset << dendl; | |
8161 | ||
8162 | for (auto it = std::lower_bound(dirp->buffer.begin(), dirp->buffer.end(), | |
8163 | dirp->offset, dir_result_t::dentry_off_lt()); | |
8164 | it != dirp->buffer.end(); | |
8165 | ++it) { | |
8166 | dir_result_t::dentry &entry = *it; | |
8167 | ||
8168 | uint64_t next_off = entry.offset + 1; | |
8169 | ||
8170 | int r; | |
8171 | if (check_caps) { | |
8172 | r = _getattr(entry.inode, caps, dirp->perms); | |
8173 | if (r < 0) | |
8174 | return r; | |
8175 | } | |
8176 | ||
8177 | fill_statx(entry.inode, caps, &stx); | |
8178 | fill_dirent(&de, entry.name.c_str(), stx.stx_mode, stx.stx_ino, next_off); | |
8179 | ||
8180 | Inode *inode = NULL; | |
8181 | if (getref) { | |
8182 | inode = entry.inode.get(); | |
8183 | _ll_get(inode); | |
8184 | } | |
8185 | ||
8186 | client_lock.Unlock(); | |
8187 | r = cb(p, &de, &stx, next_off, inode); // _next_ offset | |
8188 | client_lock.Lock(); | |
8189 | ||
8190 | ldout(cct, 15) << " de " << de.d_name << " off " << hex << next_off - 1 << dec | |
8191 | << " = " << r << dendl; | |
8192 | if (r < 0) | |
8193 | return r; | |
8194 | ||
8195 | dirp->offset = next_off; | |
8196 | if (r > 0) | |
8197 | return r; | |
8198 | } | |
8199 | ||
8200 | if (dirp->next_offset > 2) { | |
8201 | ldout(cct, 10) << " fetching next chunk of this frag" << dendl; | |
8202 | _readdir_drop_dirp_buffer(dirp); | |
8203 | continue; // more! | |
8204 | } | |
8205 | ||
8206 | if (!fg.is_rightmost()) { | |
8207 | // next frag! | |
8208 | _readdir_next_frag(dirp); | |
8209 | continue; | |
8210 | } | |
8211 | ||
8212 | if (diri->shared_gen == dirp->start_shared_gen && | |
8213 | diri->dir_release_count == dirp->release_count) { | |
8214 | if (diri->dir_ordered_count == dirp->ordered_count) { | |
8215 | ldout(cct, 10) << " marking (I_COMPLETE|I_DIR_ORDERED) on " << *diri << dendl; | |
8216 | if (diri->dir) { | |
11fdf7f2 | 8217 | ceph_assert(diri->dir->readdir_cache.size() >= dirp->cache_index); |
7c673cae FG |
8218 | diri->dir->readdir_cache.resize(dirp->cache_index); |
8219 | } | |
8220 | diri->flags |= I_COMPLETE | I_DIR_ORDERED; | |
8221 | } else { | |
8222 | ldout(cct, 10) << " marking I_COMPLETE on " << *diri << dendl; | |
8223 | diri->flags |= I_COMPLETE; | |
8224 | } | |
8225 | } | |
8226 | ||
8227 | dirp->set_end(); | |
8228 | return 0; | |
8229 | } | |
8230 | ceph_abort(); | |
8231 | return 0; | |
8232 | } | |
8233 | ||
8234 | ||
8235 | int Client::readdir_r(dir_result_t *d, struct dirent *de) | |
8236 | { | |
8237 | return readdirplus_r(d, de, 0, 0, 0, NULL); | |
8238 | } | |
8239 | ||
8240 | /* | |
8241 | * readdirplus_r | |
8242 | * | |
8243 | * returns | |
8244 | * 1 if we got a dirent | |
8245 | * 0 for end of directory | |
8246 | * <0 on error | |
8247 | */ | |
8248 | ||
8249 | struct single_readdir { | |
8250 | struct dirent *de; | |
8251 | struct ceph_statx *stx; | |
8252 | Inode *inode; | |
8253 | bool full; | |
8254 | }; | |
8255 | ||
8256 | static int _readdir_single_dirent_cb(void *p, struct dirent *de, | |
8257 | struct ceph_statx *stx, off_t off, | |
8258 | Inode *in) | |
8259 | { | |
8260 | single_readdir *c = static_cast<single_readdir *>(p); | |
8261 | ||
8262 | if (c->full) | |
8263 | return -1; // already filled this dirent | |
8264 | ||
8265 | *c->de = *de; | |
8266 | if (c->stx) | |
8267 | *c->stx = *stx; | |
8268 | c->inode = in; | |
8269 | c->full = true; | |
8270 | return 1; | |
8271 | } | |
8272 | ||
8273 | struct dirent *Client::readdir(dir_result_t *d) | |
8274 | { | |
8275 | int ret; | |
8276 | static struct dirent de; | |
8277 | single_readdir sr; | |
8278 | sr.de = &de; | |
8279 | sr.stx = NULL; | |
8280 | sr.inode = NULL; | |
8281 | sr.full = false; | |
8282 | ||
8283 | // our callback fills the dirent and sets sr.full=true on first | |
8284 | // call, and returns -1 the second time around. | |
8285 | ret = readdir_r_cb(d, _readdir_single_dirent_cb, (void *)&sr); | |
8286 | if (ret < -1) { | |
8287 | errno = -ret; // this sucks. | |
8288 | return (dirent *) NULL; | |
8289 | } | |
8290 | if (sr.full) { | |
8291 | return &de; | |
8292 | } | |
8293 | return (dirent *) NULL; | |
8294 | } | |
8295 | ||
8296 | int Client::readdirplus_r(dir_result_t *d, struct dirent *de, | |
8297 | struct ceph_statx *stx, unsigned want, | |
8298 | unsigned flags, Inode **out) | |
8299 | { | |
8300 | single_readdir sr; | |
8301 | sr.de = de; | |
8302 | sr.stx = stx; | |
8303 | sr.inode = NULL; | |
8304 | sr.full = false; | |
8305 | ||
8306 | // our callback fills the dirent and sets sr.full=true on first | |
8307 | // call, and returns -1 the second time around. | |
8308 | int r = readdir_r_cb(d, _readdir_single_dirent_cb, (void *)&sr, want, flags, out); | |
8309 | if (r < -1) | |
8310 | return r; | |
8311 | if (out) | |
8312 | *out = sr.inode; | |
8313 | if (sr.full) | |
8314 | return 1; | |
8315 | return 0; | |
8316 | } | |
8317 | ||
8318 | ||
8319 | /* getdents */ | |
8320 | struct getdents_result { | |
8321 | char *buf; | |
8322 | int buflen; | |
8323 | int pos; | |
8324 | bool fullent; | |
8325 | }; | |
8326 | ||
8327 | static int _readdir_getdent_cb(void *p, struct dirent *de, | |
8328 | struct ceph_statx *stx, off_t off, Inode *in) | |
8329 | { | |
8330 | struct getdents_result *c = static_cast<getdents_result *>(p); | |
8331 | ||
8332 | int dlen; | |
8333 | if (c->fullent) | |
8334 | dlen = sizeof(*de); | |
8335 | else | |
8336 | dlen = strlen(de->d_name) + 1; | |
8337 | ||
8338 | if (c->pos + dlen > c->buflen) | |
8339 | return -1; // doesn't fit | |
8340 | ||
8341 | if (c->fullent) { | |
8342 | memcpy(c->buf + c->pos, de, sizeof(*de)); | |
8343 | } else { | |
8344 | memcpy(c->buf + c->pos, de->d_name, dlen); | |
8345 | } | |
8346 | c->pos += dlen; | |
8347 | return 0; | |
8348 | } | |
8349 | ||
8350 | int Client::_getdents(dir_result_t *dir, char *buf, int buflen, bool fullent) | |
8351 | { | |
8352 | getdents_result gr; | |
8353 | gr.buf = buf; | |
8354 | gr.buflen = buflen; | |
8355 | gr.fullent = fullent; | |
8356 | gr.pos = 0; | |
8357 | ||
8358 | int r = readdir_r_cb(dir, _readdir_getdent_cb, (void *)&gr); | |
8359 | ||
8360 | if (r < 0) { // some error | |
8361 | if (r == -1) { // buffer ran out of space | |
8362 | if (gr.pos) { // but we got some entries already! | |
8363 | return gr.pos; | |
8364 | } // or we need a larger buffer | |
8365 | return -ERANGE; | |
8366 | } else { // actual error, return it | |
8367 | return r; | |
8368 | } | |
8369 | } | |
8370 | return gr.pos; | |
8371 | } | |
8372 | ||
8373 | ||
8374 | /* getdir */ | |
8375 | struct getdir_result { | |
8376 | list<string> *contents; | |
8377 | int num; | |
8378 | }; | |
8379 | ||
8380 | static int _getdir_cb(void *p, struct dirent *de, struct ceph_statx *stx, off_t off, Inode *in) | |
8381 | { | |
8382 | getdir_result *r = static_cast<getdir_result *>(p); | |
8383 | ||
8384 | r->contents->push_back(de->d_name); | |
8385 | r->num++; | |
8386 | return 0; | |
8387 | } | |
8388 | ||
8389 | int Client::getdir(const char *relpath, list<string>& contents, | |
8390 | const UserPerm& perms) | |
8391 | { | |
8392 | ldout(cct, 3) << "getdir(" << relpath << ")" << dendl; | |
8393 | { | |
11fdf7f2 | 8394 | std::lock_guard lock(client_lock); |
7c673cae FG |
8395 | tout(cct) << "getdir" << std::endl; |
8396 | tout(cct) << relpath << std::endl; | |
8397 | } | |
8398 | ||
8399 | dir_result_t *d; | |
8400 | int r = opendir(relpath, &d, perms); | |
8401 | if (r < 0) | |
8402 | return r; | |
8403 | ||
8404 | getdir_result gr; | |
8405 | gr.contents = &contents; | |
8406 | gr.num = 0; | |
8407 | r = readdir_r_cb(d, _getdir_cb, (void *)&gr); | |
8408 | ||
8409 | closedir(d); | |
8410 | ||
8411 | if (r < 0) | |
8412 | return r; | |
8413 | return gr.num; | |
8414 | } | |
8415 | ||
8416 | ||
8417 | /****** file i/o **********/ | |
8418 | int Client::open(const char *relpath, int flags, const UserPerm& perms, | |
8419 | mode_t mode, int stripe_unit, int stripe_count, | |
8420 | int object_size, const char *data_pool) | |
8421 | { | |
8422 | ldout(cct, 3) << "open enter(" << relpath << ", " << ceph_flags_sys2wire(flags) << "," << mode << ")" << dendl; | |
11fdf7f2 | 8423 | std::lock_guard lock(client_lock); |
7c673cae FG |
8424 | tout(cct) << "open" << std::endl; |
8425 | tout(cct) << relpath << std::endl; | |
8426 | tout(cct) << ceph_flags_sys2wire(flags) << std::endl; | |
8427 | ||
181888fb FG |
8428 | if (unmounting) |
8429 | return -ENOTCONN; | |
8430 | ||
7c673cae FG |
8431 | Fh *fh = NULL; |
8432 | ||
8433 | #if defined(__linux__) && defined(O_PATH) | |
8434 | /* When the O_PATH is being specified, others flags than O_DIRECTORY | |
8435 | * and O_NOFOLLOW are ignored. Please refer do_entry_open() function | |
8436 | * in kernel (fs/open.c). */ | |
8437 | if (flags & O_PATH) | |
8438 | flags &= O_DIRECTORY | O_NOFOLLOW | O_PATH; | |
8439 | #endif | |
8440 | ||
8441 | filepath path(relpath); | |
8442 | InodeRef in; | |
8443 | bool created = false; | |
8444 | /* O_CREATE with O_EXCL enforces O_NOFOLLOW. */ | |
8445 | bool followsym = !((flags & O_NOFOLLOW) || ((flags & O_CREAT) && (flags & O_EXCL))); | |
8446 | int r = path_walk(path, &in, perms, followsym, ceph_caps_for_mode(mode)); | |
8447 | ||
8448 | if (r == 0 && (flags & O_CREAT) && (flags & O_EXCL)) | |
8449 | return -EEXIST; | |
8450 | ||
8451 | #if defined(__linux__) && defined(O_PATH) | |
8452 | if (r == 0 && in->is_symlink() && (flags & O_NOFOLLOW) && !(flags & O_PATH)) | |
8453 | #else | |
8454 | if (r == 0 && in->is_symlink() && (flags & O_NOFOLLOW)) | |
8455 | #endif | |
8456 | return -ELOOP; | |
8457 | ||
8458 | if (r == -ENOENT && (flags & O_CREAT)) { | |
8459 | filepath dirpath = path; | |
8460 | string dname = dirpath.last_dentry(); | |
8461 | dirpath.pop_dentry(); | |
8462 | InodeRef dir; | |
8463 | r = path_walk(dirpath, &dir, perms, true, | |
8464 | cct->_conf->client_permissions ? CEPH_CAP_AUTH_SHARED : 0); | |
8465 | if (r < 0) | |
8466 | goto out; | |
8467 | if (cct->_conf->client_permissions) { | |
8468 | r = may_create(dir.get(), perms); | |
8469 | if (r < 0) | |
8470 | goto out; | |
8471 | } | |
8472 | r = _create(dir.get(), dname.c_str(), flags, mode, &in, &fh, stripe_unit, | |
8473 | stripe_count, object_size, data_pool, &created, perms); | |
8474 | } | |
8475 | if (r < 0) | |
8476 | goto out; | |
8477 | ||
8478 | if (!created) { | |
8479 | // posix says we can only check permissions of existing files | |
8480 | if (cct->_conf->client_permissions) { | |
8481 | r = may_open(in.get(), flags, perms); | |
8482 | if (r < 0) | |
8483 | goto out; | |
8484 | } | |
8485 | } | |
8486 | ||
8487 | if (!fh) | |
8488 | r = _open(in.get(), flags, mode, &fh, perms); | |
8489 | if (r >= 0) { | |
8490 | // allocate a integer file descriptor | |
11fdf7f2 | 8491 | ceph_assert(fh); |
7c673cae | 8492 | r = get_fd(); |
11fdf7f2 | 8493 | ceph_assert(fd_map.count(r) == 0); |
7c673cae FG |
8494 | fd_map[r] = fh; |
8495 | } | |
8496 | ||
8497 | out: | |
8498 | tout(cct) << r << std::endl; | |
8499 | ldout(cct, 3) << "open exit(" << path << ", " << ceph_flags_sys2wire(flags) << ") = " << r << dendl; | |
8500 | return r; | |
8501 | } | |
8502 | ||
8503 | int Client::open(const char *relpath, int flags, const UserPerm& perms, mode_t mode) | |
8504 | { | |
8505 | /* Use default file striping parameters */ | |
8506 | return open(relpath, flags, perms, mode, 0, 0, 0, NULL); | |
8507 | } | |
8508 | ||
8509 | int Client::lookup_hash(inodeno_t ino, inodeno_t dirino, const char *name, | |
8510 | const UserPerm& perms) | |
8511 | { | |
11fdf7f2 TL |
8512 | std::lock_guard lock(client_lock); |
8513 | ldout(cct, 3) << __func__ << " enter(" << ino << ", #" << dirino << "/" << name << ")" << dendl; | |
7c673cae | 8514 | |
181888fb FG |
8515 | if (unmounting) |
8516 | return -ENOTCONN; | |
8517 | ||
7c673cae FG |
8518 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_LOOKUPHASH); |
8519 | filepath path(ino); | |
8520 | req->set_filepath(path); | |
8521 | ||
8522 | uint32_t h = ceph_str_hash(CEPH_STR_HASH_RJENKINS, name, strlen(name)); | |
8523 | char f[30]; | |
8524 | sprintf(f, "%u", h); | |
8525 | filepath path2(dirino); | |
8526 | path2.push_dentry(string(f)); | |
8527 | req->set_filepath2(path2); | |
8528 | ||
8529 | int r = make_request(req, perms, NULL, NULL, | |
8530 | rand() % mdsmap->get_num_in_mds()); | |
11fdf7f2 | 8531 | ldout(cct, 3) << __func__ << " exit(" << ino << ", #" << dirino << "/" << name << ") = " << r << dendl; |
7c673cae FG |
8532 | return r; |
8533 | } | |
8534 | ||
8535 | ||
8536 | /** | |
8537 | * Load inode into local cache. | |
8538 | * | |
8539 | * If inode pointer is non-NULL, and take a reference on | |
8540 | * the resulting Inode object in one operation, so that caller | |
8541 | * can safely assume inode will still be there after return. | |
8542 | */ | |
1adf2230 | 8543 | int Client::_lookup_ino(inodeno_t ino, const UserPerm& perms, Inode **inode) |
7c673cae | 8544 | { |
11fdf7f2 | 8545 | ldout(cct, 8) << __func__ << " enter(" << ino << ")" << dendl; |
7c673cae | 8546 | |
181888fb FG |
8547 | if (unmounting) |
8548 | return -ENOTCONN; | |
8549 | ||
7c673cae FG |
8550 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_LOOKUPINO); |
8551 | filepath path(ino); | |
8552 | req->set_filepath(path); | |
8553 | ||
8554 | int r = make_request(req, perms, NULL, NULL, rand() % mdsmap->get_num_in_mds()); | |
8555 | if (r == 0 && inode != NULL) { | |
8556 | vinodeno_t vino(ino, CEPH_NOSNAP); | |
8557 | unordered_map<vinodeno_t,Inode*>::iterator p = inode_map.find(vino); | |
11fdf7f2 | 8558 | ceph_assert(p != inode_map.end()); |
7c673cae FG |
8559 | *inode = p->second; |
8560 | _ll_get(*inode); | |
8561 | } | |
11fdf7f2 | 8562 | ldout(cct, 8) << __func__ << " exit(" << ino << ") = " << r << dendl; |
7c673cae FG |
8563 | return r; |
8564 | } | |
8565 | ||
1adf2230 AA |
8566 | int Client::lookup_ino(inodeno_t ino, const UserPerm& perms, Inode **inode) |
8567 | { | |
11fdf7f2 | 8568 | std::lock_guard lock(client_lock); |
1adf2230 AA |
8569 | return _lookup_ino(ino, perms, inode); |
8570 | } | |
7c673cae FG |
8571 | |
8572 | /** | |
8573 | * Find the parent inode of `ino` and insert it into | |
8574 | * our cache. Conditionally also set `parent` to a referenced | |
8575 | * Inode* if caller provides non-NULL value. | |
8576 | */ | |
1adf2230 | 8577 | int Client::_lookup_parent(Inode *ino, const UserPerm& perms, Inode **parent) |
7c673cae | 8578 | { |
11fdf7f2 | 8579 | ldout(cct, 8) << __func__ << " enter(" << ino->ino << ")" << dendl; |
7c673cae | 8580 | |
7c673cae FG |
8581 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_LOOKUPPARENT); |
8582 | filepath path(ino->ino); | |
8583 | req->set_filepath(path); | |
8584 | ||
8585 | InodeRef target; | |
8586 | int r = make_request(req, perms, &target, NULL, rand() % mdsmap->get_num_in_mds()); | |
8587 | // Give caller a reference to the parent ino if they provided a pointer. | |
8588 | if (parent != NULL) { | |
8589 | if (r == 0) { | |
8590 | *parent = target.get(); | |
8591 | _ll_get(*parent); | |
11fdf7f2 | 8592 | ldout(cct, 8) << __func__ << " found parent " << (*parent)->ino << dendl; |
7c673cae FG |
8593 | } else { |
8594 | *parent = NULL; | |
8595 | } | |
8596 | } | |
11fdf7f2 | 8597 | ldout(cct, 8) << __func__ << " exit(" << ino->ino << ") = " << r << dendl; |
7c673cae FG |
8598 | return r; |
8599 | } | |
8600 | ||
7c673cae FG |
8601 | /** |
8602 | * Populate the parent dentry for `ino`, provided it is | |
8603 | * a child of `parent`. | |
8604 | */ | |
1adf2230 | 8605 | int Client::_lookup_name(Inode *ino, Inode *parent, const UserPerm& perms) |
7c673cae | 8606 | { |
11fdf7f2 TL |
8607 | ceph_assert(parent->is_dir()); |
8608 | ldout(cct, 3) << __func__ << " enter(" << ino->ino << ")" << dendl; | |
7c673cae | 8609 | |
181888fb FG |
8610 | if (unmounting) |
8611 | return -ENOTCONN; | |
8612 | ||
7c673cae FG |
8613 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_LOOKUPNAME); |
8614 | req->set_filepath2(filepath(parent->ino)); | |
8615 | req->set_filepath(filepath(ino->ino)); | |
8616 | req->set_inode(ino); | |
8617 | ||
8618 | int r = make_request(req, perms, NULL, NULL, rand() % mdsmap->get_num_in_mds()); | |
11fdf7f2 | 8619 | ldout(cct, 3) << __func__ << " exit(" << ino->ino << ") = " << r << dendl; |
7c673cae FG |
8620 | return r; |
8621 | } | |
8622 | ||
1adf2230 AA |
8623 | int Client::lookup_name(Inode *ino, Inode *parent, const UserPerm& perms) |
8624 | { | |
11fdf7f2 | 8625 | std::lock_guard lock(client_lock); |
1adf2230 AA |
8626 | return _lookup_name(ino, parent, perms); |
8627 | } | |
7c673cae | 8628 | |
11fdf7f2 | 8629 | Fh *Client::_create_fh(Inode *in, int flags, int cmode, const UserPerm& perms) |
7c673cae | 8630 | { |
11fdf7f2 TL |
8631 | ceph_assert(in); |
8632 | Fh *f = new Fh(in, flags, cmode, perms); | |
7c673cae | 8633 | |
11fdf7f2 | 8634 | ldout(cct, 10) << __func__ << " " << in->ino << " mode " << cmode << dendl; |
7c673cae FG |
8635 | |
8636 | if (in->snapid != CEPH_NOSNAP) { | |
8637 | in->snap_cap_refs++; | |
8638 | ldout(cct, 5) << "open success, fh is " << f << " combined IMMUTABLE SNAP caps " | |
8639 | << ccap_string(in->caps_issued()) << dendl; | |
8640 | } | |
8641 | ||
11fdf7f2 | 8642 | const auto& conf = cct->_conf; |
7c673cae FG |
8643 | f->readahead.set_trigger_requests(1); |
8644 | f->readahead.set_min_readahead_size(conf->client_readahead_min); | |
8645 | uint64_t max_readahead = Readahead::NO_LIMIT; | |
8646 | if (conf->client_readahead_max_bytes) { | |
11fdf7f2 | 8647 | max_readahead = std::min(max_readahead, (uint64_t)conf->client_readahead_max_bytes); |
7c673cae FG |
8648 | } |
8649 | if (conf->client_readahead_max_periods) { | |
11fdf7f2 | 8650 | max_readahead = std::min(max_readahead, in->layout.get_period()*(uint64_t)conf->client_readahead_max_periods); |
7c673cae FG |
8651 | } |
8652 | f->readahead.set_max_readahead_size(max_readahead); | |
8653 | vector<uint64_t> alignments; | |
8654 | alignments.push_back(in->layout.get_period()); | |
8655 | alignments.push_back(in->layout.stripe_unit); | |
8656 | f->readahead.set_alignments(alignments); | |
8657 | ||
8658 | return f; | |
8659 | } | |
8660 | ||
8661 | int Client::_release_fh(Fh *f) | |
8662 | { | |
8663 | //ldout(cct, 3) << "op: client->close(open_files[ " << fh << " ]);" << dendl; | |
8664 | //ldout(cct, 3) << "op: open_files.erase( " << fh << " );" << dendl; | |
8665 | Inode *in = f->inode.get(); | |
11fdf7f2 | 8666 | ldout(cct, 8) << __func__ << " " << f << " mode " << f->mode << " on " << *in << dendl; |
7c673cae | 8667 | |
b32b8144 FG |
8668 | in->unset_deleg(f); |
8669 | ||
7c673cae FG |
8670 | if (in->snapid == CEPH_NOSNAP) { |
8671 | if (in->put_open_ref(f->mode)) { | |
8672 | _flush(in, new C_Client_FlushComplete(this, in)); | |
8673 | check_caps(in, 0); | |
8674 | } | |
8675 | } else { | |
11fdf7f2 | 8676 | ceph_assert(in->snap_cap_refs > 0); |
7c673cae FG |
8677 | in->snap_cap_refs--; |
8678 | } | |
8679 | ||
8680 | _release_filelocks(f); | |
8681 | ||
8682 | // Finally, read any async err (i.e. from flushes) | |
8683 | int err = f->take_async_err(); | |
8684 | if (err != 0) { | |
11fdf7f2 | 8685 | ldout(cct, 1) << __func__ << " " << f << " on inode " << *in << " caught async_err = " |
7c673cae FG |
8686 | << cpp_strerror(err) << dendl; |
8687 | } else { | |
11fdf7f2 | 8688 | ldout(cct, 10) << __func__ << " " << f << " on inode " << *in << " no async_err state" << dendl; |
7c673cae FG |
8689 | } |
8690 | ||
8691 | _put_fh(f); | |
8692 | ||
8693 | return err; | |
8694 | } | |
8695 | ||
8696 | void Client::_put_fh(Fh *f) | |
8697 | { | |
8698 | int left = f->put(); | |
8699 | if (!left) { | |
8700 | delete f; | |
8701 | } | |
8702 | } | |
8703 | ||
8704 | int Client::_open(Inode *in, int flags, mode_t mode, Fh **fhp, | |
8705 | const UserPerm& perms) | |
8706 | { | |
8707 | if (in->snapid != CEPH_NOSNAP && | |
8708 | (flags & (O_WRONLY | O_RDWR | O_CREAT | O_TRUNC | O_APPEND))) { | |
8709 | return -EROFS; | |
8710 | } | |
8711 | ||
8712 | // use normalized flags to generate cmode | |
11fdf7f2 TL |
8713 | int cflags = ceph_flags_sys2wire(flags); |
8714 | if (cct->_conf.get_val<bool>("client_force_lazyio")) | |
8715 | cflags |= CEPH_O_LAZY; | |
8716 | ||
8717 | int cmode = ceph_flags_to_mode(cflags); | |
7c673cae FG |
8718 | int want = ceph_caps_for_mode(cmode); |
8719 | int result = 0; | |
8720 | ||
8721 | in->get_open_ref(cmode); // make note of pending open, since it effects _wanted_ caps. | |
8722 | ||
b32b8144 | 8723 | if ((flags & O_TRUNC) == 0 && in->caps_issued_mask(want)) { |
7c673cae FG |
8724 | // update wanted? |
8725 | check_caps(in, CHECK_CAPS_NODELAY); | |
8726 | } else { | |
b32b8144 | 8727 | |
7c673cae FG |
8728 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_OPEN); |
8729 | filepath path; | |
8730 | in->make_nosnap_relative_path(path); | |
8731 | req->set_filepath(path); | |
11fdf7f2 | 8732 | req->head.args.open.flags = cflags & ~CEPH_O_CREAT; |
7c673cae FG |
8733 | req->head.args.open.mode = mode; |
8734 | req->head.args.open.pool = -1; | |
8735 | if (cct->_conf->client_debug_getattr_caps) | |
8736 | req->head.args.open.mask = DEBUG_GETATTR_CAPS; | |
8737 | else | |
8738 | req->head.args.open.mask = 0; | |
8739 | req->head.args.open.old_size = in->size; // for O_TRUNC | |
8740 | req->set_inode(in); | |
8741 | result = make_request(req, perms); | |
b32b8144 FG |
8742 | |
8743 | /* | |
8744 | * NFS expects that delegations will be broken on a conflicting open, | |
8745 | * not just when there is actual conflicting access to the file. SMB leases | |
8746 | * and oplocks also have similar semantics. | |
8747 | * | |
8748 | * Ensure that clients that have delegations enabled will wait on minimal | |
8749 | * caps during open, just to ensure that other clients holding delegations | |
8750 | * return theirs first. | |
8751 | */ | |
8752 | if (deleg_timeout && result == 0) { | |
8753 | int need = 0, have; | |
8754 | ||
8755 | if (cmode & CEPH_FILE_MODE_WR) | |
8756 | need |= CEPH_CAP_FILE_WR; | |
8757 | if (cmode & CEPH_FILE_MODE_RD) | |
8758 | need |= CEPH_CAP_FILE_RD; | |
8759 | ||
8760 | result = get_caps(in, need, want, &have, -1); | |
8761 | if (result < 0) { | |
1adf2230 | 8762 | ldout(cct, 8) << "Unable to get caps after open of inode " << *in << |
b32b8144 FG |
8763 | " . Denying open: " << |
8764 | cpp_strerror(result) << dendl; | |
8765 | in->put_open_ref(cmode); | |
8766 | } else { | |
8767 | put_cap_ref(in, need); | |
8768 | } | |
8769 | } | |
7c673cae FG |
8770 | } |
8771 | ||
8772 | // success? | |
8773 | if (result >= 0) { | |
8774 | if (fhp) | |
8775 | *fhp = _create_fh(in, flags, cmode, perms); | |
8776 | } else { | |
8777 | in->put_open_ref(cmode); | |
8778 | } | |
8779 | ||
8780 | trim_cache(); | |
8781 | ||
8782 | return result; | |
8783 | } | |
8784 | ||
8785 | int Client::_renew_caps(Inode *in) | |
8786 | { | |
8787 | int wanted = in->caps_file_wanted(); | |
8788 | if (in->is_any_caps() && | |
8789 | ((wanted & CEPH_CAP_ANY_WR) == 0 || in->auth_cap)) { | |
8790 | check_caps(in, CHECK_CAPS_NODELAY); | |
8791 | return 0; | |
8792 | } | |
8793 | ||
8794 | int flags = 0; | |
8795 | if ((wanted & CEPH_CAP_FILE_RD) && (wanted & CEPH_CAP_FILE_WR)) | |
8796 | flags = O_RDWR; | |
8797 | else if (wanted & CEPH_CAP_FILE_RD) | |
8798 | flags = O_RDONLY; | |
8799 | else if (wanted & CEPH_CAP_FILE_WR) | |
8800 | flags = O_WRONLY; | |
8801 | ||
8802 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_OPEN); | |
8803 | filepath path; | |
8804 | in->make_nosnap_relative_path(path); | |
8805 | req->set_filepath(path); | |
8806 | req->head.args.open.flags = flags; | |
8807 | req->head.args.open.pool = -1; | |
8808 | if (cct->_conf->client_debug_getattr_caps) | |
8809 | req->head.args.open.mask = DEBUG_GETATTR_CAPS; | |
8810 | else | |
8811 | req->head.args.open.mask = 0; | |
8812 | req->set_inode(in); | |
8813 | ||
8814 | // duplicate in case Cap goes away; not sure if that race is a concern? | |
8815 | const UserPerm *pperm = in->get_best_perms(); | |
8816 | UserPerm perms; | |
8817 | if (pperm != NULL) | |
8818 | perms = *pperm; | |
8819 | int ret = make_request(req, perms); | |
8820 | return ret; | |
8821 | } | |
8822 | ||
8823 | int Client::close(int fd) | |
8824 | { | |
8825 | ldout(cct, 3) << "close enter(" << fd << ")" << dendl; | |
11fdf7f2 | 8826 | std::lock_guard lock(client_lock); |
7c673cae FG |
8827 | tout(cct) << "close" << std::endl; |
8828 | tout(cct) << fd << std::endl; | |
8829 | ||
181888fb FG |
8830 | if (unmounting) |
8831 | return -ENOTCONN; | |
8832 | ||
7c673cae FG |
8833 | Fh *fh = get_filehandle(fd); |
8834 | if (!fh) | |
8835 | return -EBADF; | |
8836 | int err = _release_fh(fh); | |
8837 | fd_map.erase(fd); | |
8838 | put_fd(fd); | |
8839 | ldout(cct, 3) << "close exit(" << fd << ")" << dendl; | |
8840 | return err; | |
8841 | } | |
8842 | ||
8843 | ||
8844 | // ------------ | |
8845 | // read, write | |
8846 | ||
8847 | loff_t Client::lseek(int fd, loff_t offset, int whence) | |
8848 | { | |
11fdf7f2 | 8849 | std::lock_guard lock(client_lock); |
7c673cae FG |
8850 | tout(cct) << "lseek" << std::endl; |
8851 | tout(cct) << fd << std::endl; | |
8852 | tout(cct) << offset << std::endl; | |
8853 | tout(cct) << whence << std::endl; | |
8854 | ||
181888fb FG |
8855 | if (unmounting) |
8856 | return -ENOTCONN; | |
8857 | ||
7c673cae FG |
8858 | Fh *f = get_filehandle(fd); |
8859 | if (!f) | |
8860 | return -EBADF; | |
8861 | #if defined(__linux__) && defined(O_PATH) | |
8862 | if (f->flags & O_PATH) | |
8863 | return -EBADF; | |
8864 | #endif | |
8865 | return _lseek(f, offset, whence); | |
8866 | } | |
8867 | ||
8868 | loff_t Client::_lseek(Fh *f, loff_t offset, int whence) | |
8869 | { | |
8870 | Inode *in = f->inode.get(); | |
8871 | int r; | |
11fdf7f2 | 8872 | loff_t pos = -1; |
7c673cae FG |
8873 | |
8874 | switch (whence) { | |
8875 | case SEEK_SET: | |
11fdf7f2 | 8876 | pos = offset; |
7c673cae FG |
8877 | break; |
8878 | ||
8879 | case SEEK_CUR: | |
11fdf7f2 | 8880 | pos += offset; |
7c673cae FG |
8881 | break; |
8882 | ||
8883 | case SEEK_END: | |
8884 | r = _getattr(in, CEPH_STAT_CAP_SIZE, f->actor_perms); | |
8885 | if (r < 0) | |
8886 | return r; | |
11fdf7f2 | 8887 | pos = in->size + offset; |
7c673cae FG |
8888 | break; |
8889 | ||
8890 | default: | |
8891 | ceph_abort(); | |
8892 | } | |
8893 | ||
11fdf7f2 TL |
8894 | if (pos < 0) { |
8895 | return -EINVAL; | |
8896 | } else { | |
8897 | f->pos = pos; | |
8898 | } | |
8899 | ||
1adf2230 | 8900 | ldout(cct, 8) << "_lseek(" << f << ", " << offset << ", " << whence << ") = " << f->pos << dendl; |
7c673cae FG |
8901 | return f->pos; |
8902 | } | |
8903 | ||
8904 | ||
8905 | void Client::lock_fh_pos(Fh *f) | |
8906 | { | |
11fdf7f2 | 8907 | ldout(cct, 10) << __func__ << " " << f << dendl; |
7c673cae FG |
8908 | |
8909 | if (f->pos_locked || !f->pos_waiters.empty()) { | |
8910 | Cond cond; | |
8911 | f->pos_waiters.push_back(&cond); | |
11fdf7f2 | 8912 | ldout(cct, 10) << __func__ << " BLOCKING on " << f << dendl; |
7c673cae FG |
8913 | while (f->pos_locked || f->pos_waiters.front() != &cond) |
8914 | cond.Wait(client_lock); | |
11fdf7f2 TL |
8915 | ldout(cct, 10) << __func__ << " UNBLOCKING on " << f << dendl; |
8916 | ceph_assert(f->pos_waiters.front() == &cond); | |
7c673cae FG |
8917 | f->pos_waiters.pop_front(); |
8918 | } | |
8919 | ||
8920 | f->pos_locked = true; | |
8921 | } | |
8922 | ||
8923 | void Client::unlock_fh_pos(Fh *f) | |
8924 | { | |
11fdf7f2 | 8925 | ldout(cct, 10) << __func__ << " " << f << dendl; |
7c673cae FG |
8926 | f->pos_locked = false; |
8927 | } | |
8928 | ||
8929 | int Client::uninline_data(Inode *in, Context *onfinish) | |
8930 | { | |
8931 | if (!in->inline_data.length()) { | |
8932 | onfinish->complete(0); | |
8933 | return 0; | |
8934 | } | |
8935 | ||
8936 | char oid_buf[32]; | |
8937 | snprintf(oid_buf, sizeof(oid_buf), "%llx.00000000", (long long unsigned)in->ino); | |
8938 | object_t oid = oid_buf; | |
8939 | ||
8940 | ObjectOperation create_ops; | |
8941 | create_ops.create(false); | |
8942 | ||
8943 | objecter->mutate(oid, | |
8944 | OSDMap::file_to_object_locator(in->layout), | |
8945 | create_ops, | |
8946 | in->snaprealm->get_snap_context(), | |
8947 | ceph::real_clock::now(), | |
8948 | 0, | |
8949 | NULL); | |
8950 | ||
8951 | bufferlist inline_version_bl; | |
11fdf7f2 | 8952 | encode(in->inline_version, inline_version_bl); |
7c673cae FG |
8953 | |
8954 | ObjectOperation uninline_ops; | |
8955 | uninline_ops.cmpxattr("inline_version", | |
8956 | CEPH_OSD_CMPXATTR_OP_GT, | |
8957 | CEPH_OSD_CMPXATTR_MODE_U64, | |
8958 | inline_version_bl); | |
8959 | bufferlist inline_data = in->inline_data; | |
8960 | uninline_ops.write(0, inline_data, in->truncate_size, in->truncate_seq); | |
8961 | uninline_ops.setxattr("inline_version", stringify(in->inline_version)); | |
8962 | ||
8963 | objecter->mutate(oid, | |
8964 | OSDMap::file_to_object_locator(in->layout), | |
8965 | uninline_ops, | |
8966 | in->snaprealm->get_snap_context(), | |
8967 | ceph::real_clock::now(), | |
8968 | 0, | |
8969 | onfinish); | |
8970 | ||
8971 | return 0; | |
8972 | } | |
8973 | ||
8974 | // | |
8975 | ||
8976 | // blocking osd interface | |
8977 | ||
8978 | int Client::read(int fd, char *buf, loff_t size, loff_t offset) | |
8979 | { | |
11fdf7f2 | 8980 | std::lock_guard lock(client_lock); |
7c673cae FG |
8981 | tout(cct) << "read" << std::endl; |
8982 | tout(cct) << fd << std::endl; | |
8983 | tout(cct) << size << std::endl; | |
8984 | tout(cct) << offset << std::endl; | |
8985 | ||
181888fb FG |
8986 | if (unmounting) |
8987 | return -ENOTCONN; | |
8988 | ||
7c673cae FG |
8989 | Fh *f = get_filehandle(fd); |
8990 | if (!f) | |
8991 | return -EBADF; | |
8992 | #if defined(__linux__) && defined(O_PATH) | |
8993 | if (f->flags & O_PATH) | |
8994 | return -EBADF; | |
8995 | #endif | |
8996 | bufferlist bl; | |
11fdf7f2 TL |
8997 | /* We can't return bytes written larger than INT_MAX, clamp size to that */ |
8998 | size = std::min(size, (loff_t)INT_MAX); | |
7c673cae FG |
8999 | int r = _read(f, offset, size, &bl); |
9000 | ldout(cct, 3) << "read(" << fd << ", " << (void*)buf << ", " << size << ", " << offset << ") = " << r << dendl; | |
9001 | if (r >= 0) { | |
9002 | bl.copy(0, bl.length(), buf); | |
9003 | r = bl.length(); | |
9004 | } | |
9005 | return r; | |
9006 | } | |
9007 | ||
9008 | int Client::preadv(int fd, const struct iovec *iov, int iovcnt, loff_t offset) | |
9009 | { | |
9010 | if (iovcnt < 0) | |
9011 | return -EINVAL; | |
9012 | return _preadv_pwritev(fd, iov, iovcnt, offset, false); | |
9013 | } | |
9014 | ||
11fdf7f2 | 9015 | int64_t Client::_read(Fh *f, int64_t offset, uint64_t size, bufferlist *bl) |
7c673cae | 9016 | { |
11fdf7f2 TL |
9017 | int want, have = 0; |
9018 | bool movepos = false; | |
9019 | std::unique_ptr<C_SaferCond> onuninline; | |
9020 | int64_t r = 0; | |
9021 | const auto& conf = cct->_conf; | |
7c673cae | 9022 | Inode *in = f->inode.get(); |
11fdf7f2 TL |
9023 | utime_t lat; |
9024 | utime_t start = ceph_clock_now(); | |
7c673cae FG |
9025 | |
9026 | if ((f->mode & CEPH_FILE_MODE_RD) == 0) | |
9027 | return -EBADF; | |
9028 | //bool lazy = f->mode == CEPH_FILE_MODE_LAZY; | |
9029 | ||
7c673cae FG |
9030 | if (offset < 0) { |
9031 | lock_fh_pos(f); | |
9032 | offset = f->pos; | |
9033 | movepos = true; | |
9034 | } | |
9035 | loff_t start_pos = offset; | |
9036 | ||
9037 | if (in->inline_version == 0) { | |
11fdf7f2 | 9038 | r = _getattr(in, CEPH_STAT_CAP_INLINE_DATA, f->actor_perms, true); |
c07f9fc5 | 9039 | if (r < 0) { |
11fdf7f2 | 9040 | goto done; |
c07f9fc5 | 9041 | } |
11fdf7f2 | 9042 | ceph_assert(in->inline_version > 0); |
7c673cae FG |
9043 | } |
9044 | ||
9045 | retry: | |
11fdf7f2 TL |
9046 | if (f->mode & CEPH_FILE_MODE_LAZY) |
9047 | want = CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_LAZYIO; | |
9048 | else | |
9049 | want = CEPH_CAP_FILE_CACHE; | |
9050 | r = get_caps(in, CEPH_CAP_FILE_RD, want, &have, -1); | |
c07f9fc5 | 9051 | if (r < 0) { |
11fdf7f2 | 9052 | goto done; |
c07f9fc5 | 9053 | } |
7c673cae | 9054 | if (f->flags & O_DIRECT) |
11fdf7f2 | 9055 | have &= ~(CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_LAZYIO); |
7c673cae FG |
9056 | |
9057 | if (in->inline_version < CEPH_INLINE_NONE) { | |
9058 | if (!(have & CEPH_CAP_FILE_CACHE)) { | |
11fdf7f2 TL |
9059 | onuninline.reset(new C_SaferCond("Client::_read_uninline_data flock")); |
9060 | uninline_data(in, onuninline.get()); | |
7c673cae FG |
9061 | } else { |
9062 | uint32_t len = in->inline_data.length(); | |
7c673cae FG |
9063 | uint64_t endoff = offset + size; |
9064 | if (endoff > in->size) | |
9065 | endoff = in->size; | |
9066 | ||
9067 | if (offset < len) { | |
9068 | if (endoff <= len) { | |
9069 | bl->substr_of(in->inline_data, offset, endoff - offset); | |
9070 | } else { | |
9071 | bl->substr_of(in->inline_data, offset, len - offset); | |
9072 | bl->append_zero(endoff - len); | |
9073 | } | |
11fdf7f2 | 9074 | r = endoff - offset; |
7c673cae FG |
9075 | } else if ((uint64_t)offset < endoff) { |
9076 | bl->append_zero(endoff - offset); | |
11fdf7f2 TL |
9077 | r = endoff - offset; |
9078 | } else { | |
9079 | r = 0; | |
7c673cae | 9080 | } |
7c673cae FG |
9081 | goto success; |
9082 | } | |
9083 | } | |
9084 | ||
9085 | if (!conf->client_debug_force_sync_read && | |
11fdf7f2 TL |
9086 | conf->client_oc && |
9087 | (have & (CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_LAZYIO))) { | |
7c673cae FG |
9088 | |
9089 | if (f->flags & O_RSYNC) { | |
9090 | _flush_range(in, offset, size); | |
9091 | } | |
9092 | r = _read_async(f, offset, size, bl); | |
9093 | if (r < 0) | |
9094 | goto done; | |
9095 | } else { | |
9096 | if (f->flags & O_DIRECT) | |
9097 | _flush_range(in, offset, size); | |
9098 | ||
9099 | bool checkeof = false; | |
9100 | r = _read_sync(f, offset, size, bl, &checkeof); | |
9101 | if (r < 0) | |
9102 | goto done; | |
9103 | if (checkeof) { | |
9104 | offset += r; | |
9105 | size -= r; | |
9106 | ||
9107 | put_cap_ref(in, CEPH_CAP_FILE_RD); | |
9108 | have = 0; | |
9109 | // reverify size | |
9110 | r = _getattr(in, CEPH_STAT_CAP_SIZE, f->actor_perms); | |
9111 | if (r < 0) | |
9112 | goto done; | |
9113 | ||
9114 | // eof? short read. | |
9115 | if ((uint64_t)offset < in->size) | |
9116 | goto retry; | |
9117 | } | |
9118 | } | |
9119 | ||
9120 | success: | |
11fdf7f2 | 9121 | ceph_assert(r >= 0); |
7c673cae FG |
9122 | if (movepos) { |
9123 | // adjust fd pos | |
11fdf7f2 | 9124 | f->pos = start_pos + r; |
7c673cae | 9125 | } |
11fdf7f2 TL |
9126 | |
9127 | lat = ceph_clock_now(); | |
9128 | lat -= start; | |
9129 | logger->tinc(l_c_read, lat); | |
7c673cae FG |
9130 | |
9131 | done: | |
9132 | // done! | |
11fdf7f2 | 9133 | |
7c673cae FG |
9134 | if (onuninline) { |
9135 | client_lock.Unlock(); | |
11fdf7f2 | 9136 | int ret = onuninline->wait(); |
7c673cae | 9137 | client_lock.Lock(); |
11fdf7f2 | 9138 | if (ret >= 0 || ret == -ECANCELED) { |
7c673cae FG |
9139 | in->inline_data.clear(); |
9140 | in->inline_version = CEPH_INLINE_NONE; | |
28e407b8 | 9141 | in->mark_caps_dirty(CEPH_CAP_FILE_WR); |
7c673cae FG |
9142 | check_caps(in, 0); |
9143 | } else | |
11fdf7f2 | 9144 | r = ret; |
7c673cae | 9145 | } |
11fdf7f2 | 9146 | if (have) { |
7c673cae | 9147 | put_cap_ref(in, CEPH_CAP_FILE_RD); |
11fdf7f2 TL |
9148 | } |
9149 | if (movepos) { | |
9150 | unlock_fh_pos(f); | |
9151 | } | |
9152 | return r; | |
7c673cae FG |
9153 | } |
9154 | ||
9155 | Client::C_Readahead::C_Readahead(Client *c, Fh *f) : | |
9156 | client(c), f(f) { | |
9157 | f->get(); | |
9158 | f->readahead.inc_pending(); | |
9159 | } | |
9160 | ||
9161 | Client::C_Readahead::~C_Readahead() { | |
9162 | f->readahead.dec_pending(); | |
9163 | client->_put_fh(f); | |
9164 | } | |
9165 | ||
9166 | void Client::C_Readahead::finish(int r) { | |
9167 | lgeneric_subdout(client->cct, client, 20) << "client." << client->get_nodeid() << " " << "C_Readahead on " << f->inode << dendl; | |
9168 | client->put_cap_ref(f->inode.get(), CEPH_CAP_FILE_RD | CEPH_CAP_FILE_CACHE); | |
9169 | } | |
9170 | ||
9171 | int Client::_read_async(Fh *f, uint64_t off, uint64_t len, bufferlist *bl) | |
9172 | { | |
11fdf7f2 | 9173 | const auto& conf = cct->_conf; |
7c673cae FG |
9174 | Inode *in = f->inode.get(); |
9175 | ||
11fdf7f2 | 9176 | ldout(cct, 10) << __func__ << " " << *in << " " << off << "~" << len << dendl; |
7c673cae FG |
9177 | |
9178 | // trim read based on file size? | |
9179 | if (off >= in->size) | |
9180 | return 0; | |
9181 | if (len == 0) | |
9182 | return 0; | |
9183 | if (off + len > in->size) { | |
9184 | len = in->size - off; | |
9185 | } | |
9186 | ||
9187 | ldout(cct, 10) << " min_bytes=" << f->readahead.get_min_readahead_size() | |
9188 | << " max_bytes=" << f->readahead.get_max_readahead_size() | |
9189 | << " max_periods=" << conf->client_readahead_max_periods << dendl; | |
9190 | ||
9191 | // read (and possibly block) | |
11fdf7f2 TL |
9192 | int r = 0; |
9193 | C_SaferCond onfinish("Client::_read_async flock"); | |
7c673cae | 9194 | r = objectcacher->file_read(&in->oset, &in->layout, in->snapid, |
11fdf7f2 | 9195 | off, len, bl, 0, &onfinish); |
7c673cae FG |
9196 | if (r == 0) { |
9197 | get_cap_ref(in, CEPH_CAP_FILE_CACHE); | |
9198 | client_lock.Unlock(); | |
11fdf7f2 | 9199 | r = onfinish.wait(); |
7c673cae FG |
9200 | client_lock.Lock(); |
9201 | put_cap_ref(in, CEPH_CAP_FILE_CACHE); | |
7c673cae FG |
9202 | } |
9203 | ||
9204 | if(f->readahead.get_min_readahead_size() > 0) { | |
9205 | pair<uint64_t, uint64_t> readahead_extent = f->readahead.update(off, len, in->size); | |
9206 | if (readahead_extent.second > 0) { | |
9207 | ldout(cct, 20) << "readahead " << readahead_extent.first << "~" << readahead_extent.second | |
9208 | << " (caller wants " << off << "~" << len << ")" << dendl; | |
9209 | Context *onfinish2 = new C_Readahead(this, f); | |
9210 | int r2 = objectcacher->file_read(&in->oset, &in->layout, in->snapid, | |
9211 | readahead_extent.first, readahead_extent.second, | |
9212 | NULL, 0, onfinish2); | |
9213 | if (r2 == 0) { | |
9214 | ldout(cct, 20) << "readahead initiated, c " << onfinish2 << dendl; | |
9215 | get_cap_ref(in, CEPH_CAP_FILE_RD | CEPH_CAP_FILE_CACHE); | |
9216 | } else { | |
9217 | ldout(cct, 20) << "readahead was no-op, already cached" << dendl; | |
9218 | delete onfinish2; | |
9219 | } | |
9220 | } | |
9221 | } | |
9222 | ||
9223 | return r; | |
9224 | } | |
9225 | ||
9226 | int Client::_read_sync(Fh *f, uint64_t off, uint64_t len, bufferlist *bl, | |
9227 | bool *checkeof) | |
9228 | { | |
9229 | Inode *in = f->inode.get(); | |
9230 | uint64_t pos = off; | |
9231 | int left = len; | |
9232 | int read = 0; | |
9233 | ||
11fdf7f2 | 9234 | ldout(cct, 10) << __func__ << " " << *in << " " << off << "~" << len << dendl; |
7c673cae FG |
9235 | |
9236 | Mutex flock("Client::_read_sync flock"); | |
9237 | Cond cond; | |
9238 | while (left > 0) { | |
11fdf7f2 | 9239 | C_SaferCond onfinish("Client::_read_sync flock"); |
7c673cae FG |
9240 | bufferlist tbl; |
9241 | ||
9242 | int wanted = left; | |
9243 | filer->read_trunc(in->ino, &in->layout, in->snapid, | |
9244 | pos, left, &tbl, 0, | |
9245 | in->truncate_size, in->truncate_seq, | |
11fdf7f2 | 9246 | &onfinish); |
7c673cae | 9247 | client_lock.Unlock(); |
11fdf7f2 | 9248 | int r = onfinish.wait(); |
7c673cae FG |
9249 | client_lock.Lock(); |
9250 | ||
9251 | // if we get ENOENT from OSD, assume 0 bytes returned | |
9252 | if (r == -ENOENT) | |
9253 | r = 0; | |
9254 | if (r < 0) | |
9255 | return r; | |
9256 | if (tbl.length()) { | |
9257 | r = tbl.length(); | |
9258 | ||
9259 | read += r; | |
9260 | pos += r; | |
9261 | left -= r; | |
9262 | bl->claim_append(tbl); | |
9263 | } | |
9264 | // short read? | |
9265 | if (r >= 0 && r < wanted) { | |
9266 | if (pos < in->size) { | |
9267 | // zero up to known EOF | |
9268 | int64_t some = in->size - pos; | |
9269 | if (some > left) | |
9270 | some = left; | |
11fdf7f2 TL |
9271 | auto z = buffer::ptr_node::create(some); |
9272 | z->zero(); | |
9273 | bl->push_back(std::move(z)); | |
7c673cae FG |
9274 | read += some; |
9275 | pos += some; | |
9276 | left -= some; | |
9277 | if (left == 0) | |
9278 | return read; | |
9279 | } | |
9280 | ||
9281 | *checkeof = true; | |
9282 | return read; | |
9283 | } | |
9284 | } | |
9285 | return read; | |
9286 | } | |
9287 | ||
9288 | ||
9289 | /* | |
9290 | * we keep count of uncommitted sync writes on the inode, so that | |
9291 | * fsync can DDRT. | |
9292 | */ | |
9293 | void Client::_sync_write_commit(Inode *in) | |
9294 | { | |
11fdf7f2 | 9295 | ceph_assert(unsafe_sync_write > 0); |
7c673cae FG |
9296 | unsafe_sync_write--; |
9297 | ||
9298 | put_cap_ref(in, CEPH_CAP_FILE_BUFFER); | |
9299 | ||
11fdf7f2 | 9300 | ldout(cct, 15) << __func__ << " unsafe_sync_write = " << unsafe_sync_write << dendl; |
7c673cae | 9301 | if (unsafe_sync_write == 0 && unmounting) { |
11fdf7f2 | 9302 | ldout(cct, 10) << __func__ << " -- no more unsafe writes, unmount can proceed" << dendl; |
7c673cae FG |
9303 | mount_cond.Signal(); |
9304 | } | |
9305 | } | |
9306 | ||
9307 | int Client::write(int fd, const char *buf, loff_t size, loff_t offset) | |
9308 | { | |
11fdf7f2 | 9309 | std::lock_guard lock(client_lock); |
7c673cae FG |
9310 | tout(cct) << "write" << std::endl; |
9311 | tout(cct) << fd << std::endl; | |
9312 | tout(cct) << size << std::endl; | |
9313 | tout(cct) << offset << std::endl; | |
9314 | ||
181888fb FG |
9315 | if (unmounting) |
9316 | return -ENOTCONN; | |
9317 | ||
7c673cae FG |
9318 | Fh *fh = get_filehandle(fd); |
9319 | if (!fh) | |
9320 | return -EBADF; | |
9321 | #if defined(__linux__) && defined(O_PATH) | |
9322 | if (fh->flags & O_PATH) | |
9323 | return -EBADF; | |
9324 | #endif | |
11fdf7f2 TL |
9325 | /* We can't return bytes written larger than INT_MAX, clamp size to that */ |
9326 | size = std::min(size, (loff_t)INT_MAX); | |
9327 | int r = _write(fh, offset, size, buf, NULL, false); | |
7c673cae FG |
9328 | ldout(cct, 3) << "write(" << fd << ", \"...\", " << size << ", " << offset << ") = " << r << dendl; |
9329 | return r; | |
9330 | } | |
9331 | ||
9332 | int Client::pwritev(int fd, const struct iovec *iov, int iovcnt, int64_t offset) | |
9333 | { | |
9334 | if (iovcnt < 0) | |
9335 | return -EINVAL; | |
9336 | return _preadv_pwritev(fd, iov, iovcnt, offset, true); | |
9337 | } | |
9338 | ||
11fdf7f2 TL |
9339 | int64_t Client::_preadv_pwritev_locked(Fh *fh, const struct iovec *iov, |
9340 | unsigned iovcnt, int64_t offset, bool write, | |
9341 | bool clamp_to_int) | |
7c673cae | 9342 | { |
7c673cae FG |
9343 | #if defined(__linux__) && defined(O_PATH) |
9344 | if (fh->flags & O_PATH) | |
9345 | return -EBADF; | |
9346 | #endif | |
9347 | loff_t totallen = 0; | |
9348 | for (unsigned i = 0; i < iovcnt; i++) { | |
9349 | totallen += iov[i].iov_len; | |
9350 | } | |
11fdf7f2 TL |
9351 | |
9352 | /* | |
9353 | * Some of the API functions take 64-bit size values, but only return | |
9354 | * 32-bit signed integers. Clamp the I/O sizes in those functions so that | |
9355 | * we don't do I/Os larger than the values we can return. | |
9356 | */ | |
9357 | if (clamp_to_int) { | |
9358 | totallen = std::min(totallen, (loff_t)INT_MAX); | |
9359 | } | |
7c673cae | 9360 | if (write) { |
11fdf7f2 TL |
9361 | int64_t w = _write(fh, offset, totallen, NULL, iov, iovcnt); |
9362 | ldout(cct, 3) << "pwritev(" << fh << ", \"...\", " << totallen << ", " << offset << ") = " << w << dendl; | |
7c673cae FG |
9363 | return w; |
9364 | } else { | |
9365 | bufferlist bl; | |
11fdf7f2 TL |
9366 | int64_t r = _read(fh, offset, totallen, &bl); |
9367 | ldout(cct, 3) << "preadv(" << fh << ", " << offset << ") = " << r << dendl; | |
7c673cae FG |
9368 | if (r <= 0) |
9369 | return r; | |
9370 | ||
9371 | int bufoff = 0; | |
9372 | for (unsigned j = 0, resid = r; j < iovcnt && resid > 0; j++) { | |
9373 | /* | |
9374 | * This piece of code aims to handle the case that bufferlist does not have enough data | |
9375 | * to fill in the iov | |
9376 | */ | |
9377 | if (resid < iov[j].iov_len) { | |
9378 | bl.copy(bufoff, resid, (char *)iov[j].iov_base); | |
9379 | break; | |
9380 | } else { | |
9381 | bl.copy(bufoff, iov[j].iov_len, (char *)iov[j].iov_base); | |
9382 | } | |
9383 | resid -= iov[j].iov_len; | |
9384 | bufoff += iov[j].iov_len; | |
9385 | } | |
9386 | return r; | |
9387 | } | |
9388 | } | |
9389 | ||
11fdf7f2 TL |
9390 | int Client::_preadv_pwritev(int fd, const struct iovec *iov, unsigned iovcnt, int64_t offset, bool write) |
9391 | { | |
9392 | std::lock_guard lock(client_lock); | |
9393 | tout(cct) << fd << std::endl; | |
9394 | tout(cct) << offset << std::endl; | |
9395 | ||
9396 | if (unmounting) | |
9397 | return -ENOTCONN; | |
9398 | ||
9399 | Fh *fh = get_filehandle(fd); | |
9400 | if (!fh) | |
9401 | return -EBADF; | |
9402 | return _preadv_pwritev_locked(fh, iov, iovcnt, offset, write, true); | |
9403 | } | |
9404 | ||
9405 | int64_t Client::_write(Fh *f, int64_t offset, uint64_t size, const char *buf, | |
9406 | const struct iovec *iov, int iovcnt) | |
7c673cae | 9407 | { |
f64942e4 AA |
9408 | uint64_t fpos = 0; |
9409 | ||
7c673cae FG |
9410 | if ((uint64_t)(offset+size) > mdsmap->get_max_filesize()) //too large! |
9411 | return -EFBIG; | |
9412 | ||
9413 | //ldout(cct, 7) << "write fh " << fh << " size " << size << " offset " << offset << dendl; | |
9414 | Inode *in = f->inode.get(); | |
9415 | ||
9416 | if (objecter->osdmap_pool_full(in->layout.pool_id)) { | |
9417 | return -ENOSPC; | |
9418 | } | |
9419 | ||
11fdf7f2 | 9420 | ceph_assert(in->snapid == CEPH_NOSNAP); |
7c673cae FG |
9421 | |
9422 | // was Fh opened as writeable? | |
9423 | if ((f->mode & CEPH_FILE_MODE_WR) == 0) | |
9424 | return -EBADF; | |
9425 | ||
7c673cae FG |
9426 | // use/adjust fd pos? |
9427 | if (offset < 0) { | |
9428 | lock_fh_pos(f); | |
9429 | /* | |
9430 | * FIXME: this is racy in that we may block _after_ this point waiting for caps, and size may | |
9431 | * change out from under us. | |
9432 | */ | |
9433 | if (f->flags & O_APPEND) { | |
9434 | int r = _lseek(f, 0, SEEK_END); | |
9435 | if (r < 0) { | |
9436 | unlock_fh_pos(f); | |
9437 | return r; | |
9438 | } | |
9439 | } | |
9440 | offset = f->pos; | |
f64942e4 | 9441 | fpos = offset+size; |
7c673cae FG |
9442 | unlock_fh_pos(f); |
9443 | } | |
9444 | ||
11fdf7f2 TL |
9445 | // check quota |
9446 | uint64_t endoff = offset + size; | |
9447 | if (endoff > in->size && is_quota_bytes_exceeded(in, endoff - in->size, | |
9448 | f->actor_perms)) { | |
9449 | return -EDQUOT; | |
9450 | } | |
9451 | ||
7c673cae FG |
9452 | //bool lazy = f->mode == CEPH_FILE_MODE_LAZY; |
9453 | ||
9454 | ldout(cct, 10) << "cur file size is " << in->size << dendl; | |
9455 | ||
9456 | // time it. | |
9457 | utime_t start = ceph_clock_now(); | |
9458 | ||
9459 | if (in->inline_version == 0) { | |
9460 | int r = _getattr(in, CEPH_STAT_CAP_INLINE_DATA, f->actor_perms, true); | |
9461 | if (r < 0) | |
9462 | return r; | |
11fdf7f2 | 9463 | ceph_assert(in->inline_version > 0); |
7c673cae FG |
9464 | } |
9465 | ||
9466 | // copy into fresh buffer (since our write may be resub, async) | |
9467 | bufferlist bl; | |
9468 | if (buf) { | |
9469 | if (size > 0) | |
9470 | bl.append(buf, size); | |
9471 | } else if (iov){ | |
9472 | for (int i = 0; i < iovcnt; i++) { | |
9473 | if (iov[i].iov_len > 0) { | |
9474 | bl.append((const char *)iov[i].iov_base, iov[i].iov_len); | |
9475 | } | |
9476 | } | |
9477 | } | |
9478 | ||
9479 | utime_t lat; | |
9480 | uint64_t totalwritten; | |
11fdf7f2 TL |
9481 | int want, have; |
9482 | if (f->mode & CEPH_FILE_MODE_LAZY) | |
9483 | want = CEPH_CAP_FILE_BUFFER | CEPH_CAP_FILE_LAZYIO; | |
9484 | else | |
9485 | want = CEPH_CAP_FILE_BUFFER; | |
9486 | int r = get_caps(in, CEPH_CAP_FILE_WR|CEPH_CAP_AUTH_SHARED, want, &have, endoff); | |
7c673cae FG |
9487 | if (r < 0) |
9488 | return r; | |
9489 | ||
9490 | /* clear the setuid/setgid bits, if any */ | |
181888fb | 9491 | if (unlikely(in->mode & (S_ISUID|S_ISGID)) && size > 0) { |
7c673cae FG |
9492 | struct ceph_statx stx = { 0 }; |
9493 | ||
9494 | put_cap_ref(in, CEPH_CAP_AUTH_SHARED); | |
9495 | r = __setattrx(in, &stx, CEPH_SETATTR_KILL_SGUID, f->actor_perms); | |
9496 | if (r < 0) | |
9497 | return r; | |
9498 | } else { | |
9499 | put_cap_ref(in, CEPH_CAP_AUTH_SHARED); | |
9500 | } | |
9501 | ||
9502 | if (f->flags & O_DIRECT) | |
11fdf7f2 | 9503 | have &= ~(CEPH_CAP_FILE_BUFFER | CEPH_CAP_FILE_LAZYIO); |
7c673cae FG |
9504 | |
9505 | ldout(cct, 10) << " snaprealm " << *in->snaprealm << dendl; | |
9506 | ||
11fdf7f2 TL |
9507 | std::unique_ptr<C_SaferCond> onuninline = nullptr; |
9508 | ||
7c673cae FG |
9509 | if (in->inline_version < CEPH_INLINE_NONE) { |
9510 | if (endoff > cct->_conf->client_max_inline_size || | |
9511 | endoff > CEPH_INLINE_MAX_SIZE || | |
9512 | !(have & CEPH_CAP_FILE_BUFFER)) { | |
11fdf7f2 TL |
9513 | onuninline.reset(new C_SaferCond("Client::_write_uninline_data flock")); |
9514 | uninline_data(in, onuninline.get()); | |
7c673cae FG |
9515 | } else { |
9516 | get_cap_ref(in, CEPH_CAP_FILE_BUFFER); | |
9517 | ||
9518 | uint32_t len = in->inline_data.length(); | |
9519 | ||
9520 | if (endoff < len) | |
9521 | in->inline_data.copy(endoff, len - endoff, bl); | |
9522 | ||
9523 | if (offset < len) | |
9524 | in->inline_data.splice(offset, len - offset); | |
9525 | else if (offset > len) | |
9526 | in->inline_data.append_zero(offset - len); | |
9527 | ||
9528 | in->inline_data.append(bl); | |
9529 | in->inline_version++; | |
9530 | ||
9531 | put_cap_ref(in, CEPH_CAP_FILE_BUFFER); | |
9532 | ||
9533 | goto success; | |
9534 | } | |
9535 | } | |
9536 | ||
11fdf7f2 TL |
9537 | if (cct->_conf->client_oc && |
9538 | (have & (CEPH_CAP_FILE_BUFFER | CEPH_CAP_FILE_LAZYIO))) { | |
7c673cae FG |
9539 | // do buffered write |
9540 | if (!in->oset.dirty_or_tx) | |
9541 | get_cap_ref(in, CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_BUFFER); | |
9542 | ||
9543 | get_cap_ref(in, CEPH_CAP_FILE_BUFFER); | |
9544 | ||
9545 | // async, caching, non-blocking. | |
9546 | r = objectcacher->file_write(&in->oset, &in->layout, | |
9547 | in->snaprealm->get_snap_context(), | |
9548 | offset, size, bl, ceph::real_clock::now(), | |
9549 | 0); | |
9550 | put_cap_ref(in, CEPH_CAP_FILE_BUFFER); | |
9551 | ||
9552 | if (r < 0) | |
9553 | goto done; | |
9554 | ||
9555 | // flush cached write if O_SYNC is set on file fh | |
9556 | // O_DSYNC == O_SYNC on linux < 2.6.33 | |
9557 | // O_SYNC = __O_SYNC | O_DSYNC on linux >= 2.6.33 | |
9558 | if ((f->flags & O_SYNC) || (f->flags & O_DSYNC)) { | |
9559 | _flush_range(in, offset, size); | |
9560 | } | |
9561 | } else { | |
9562 | if (f->flags & O_DIRECT) | |
9563 | _flush_range(in, offset, size); | |
9564 | ||
9565 | // simple, non-atomic sync write | |
11fdf7f2 | 9566 | C_SaferCond onfinish("Client::_write flock"); |
7c673cae FG |
9567 | unsafe_sync_write++; |
9568 | get_cap_ref(in, CEPH_CAP_FILE_BUFFER); // released by onsafe callback | |
9569 | ||
9570 | filer->write_trunc(in->ino, &in->layout, in->snaprealm->get_snap_context(), | |
9571 | offset, size, bl, ceph::real_clock::now(), 0, | |
9572 | in->truncate_size, in->truncate_seq, | |
11fdf7f2 | 9573 | &onfinish); |
7c673cae | 9574 | client_lock.Unlock(); |
11fdf7f2 | 9575 | onfinish.wait(); |
7c673cae FG |
9576 | client_lock.Lock(); |
9577 | _sync_write_commit(in); | |
9578 | } | |
9579 | ||
9580 | // if we get here, write was successful, update client metadata | |
9581 | success: | |
9582 | // time | |
9583 | lat = ceph_clock_now(); | |
9584 | lat -= start; | |
9585 | logger->tinc(l_c_wrlat, lat); | |
9586 | ||
f64942e4 AA |
9587 | if (fpos) { |
9588 | lock_fh_pos(f); | |
9589 | f->pos = fpos; | |
9590 | unlock_fh_pos(f); | |
9591 | } | |
7c673cae | 9592 | totalwritten = size; |
11fdf7f2 | 9593 | r = (int64_t)totalwritten; |
7c673cae FG |
9594 | |
9595 | // extend file? | |
9596 | if (totalwritten + offset > in->size) { | |
9597 | in->size = totalwritten + offset; | |
28e407b8 | 9598 | in->mark_caps_dirty(CEPH_CAP_FILE_WR); |
7c673cae | 9599 | |
11fdf7f2 | 9600 | if (is_quota_bytes_approaching(in, f->actor_perms)) { |
7c673cae | 9601 | check_caps(in, CHECK_CAPS_NODELAY); |
31f18b77 FG |
9602 | } else if (is_max_size_approaching(in)) { |
9603 | check_caps(in, 0); | |
7c673cae FG |
9604 | } |
9605 | ||
9606 | ldout(cct, 7) << "wrote to " << totalwritten+offset << ", extending file size" << dendl; | |
9607 | } else { | |
9608 | ldout(cct, 7) << "wrote to " << totalwritten+offset << ", leaving file size at " << in->size << dendl; | |
9609 | } | |
9610 | ||
9611 | // mtime | |
91327a77 | 9612 | in->mtime = in->ctime = ceph_clock_now(); |
7c673cae | 9613 | in->change_attr++; |
28e407b8 | 9614 | in->mark_caps_dirty(CEPH_CAP_FILE_WR); |
7c673cae FG |
9615 | |
9616 | done: | |
9617 | ||
11fdf7f2 | 9618 | if (nullptr != onuninline) { |
7c673cae | 9619 | client_lock.Unlock(); |
11fdf7f2 | 9620 | int uninline_ret = onuninline->wait(); |
7c673cae FG |
9621 | client_lock.Lock(); |
9622 | ||
9623 | if (uninline_ret >= 0 || uninline_ret == -ECANCELED) { | |
9624 | in->inline_data.clear(); | |
9625 | in->inline_version = CEPH_INLINE_NONE; | |
28e407b8 | 9626 | in->mark_caps_dirty(CEPH_CAP_FILE_WR); |
7c673cae FG |
9627 | check_caps(in, 0); |
9628 | } else | |
9629 | r = uninline_ret; | |
9630 | } | |
9631 | ||
9632 | put_cap_ref(in, CEPH_CAP_FILE_WR); | |
9633 | return r; | |
9634 | } | |
9635 | ||
9636 | int Client::_flush(Fh *f) | |
9637 | { | |
9638 | Inode *in = f->inode.get(); | |
9639 | int err = f->take_async_err(); | |
9640 | if (err != 0) { | |
9641 | ldout(cct, 1) << __func__ << ": " << f << " on inode " << *in << " caught async_err = " | |
9642 | << cpp_strerror(err) << dendl; | |
9643 | } else { | |
9644 | ldout(cct, 10) << __func__ << ": " << f << " on inode " << *in << " no async_err state" << dendl; | |
9645 | } | |
9646 | ||
9647 | return err; | |
9648 | } | |
9649 | ||
9650 | int Client::truncate(const char *relpath, loff_t length, const UserPerm& perms) | |
9651 | { | |
9652 | struct ceph_statx stx; | |
9653 | stx.stx_size = length; | |
9654 | return setattrx(relpath, &stx, CEPH_SETATTR_SIZE, perms); | |
9655 | } | |
9656 | ||
9657 | int Client::ftruncate(int fd, loff_t length, const UserPerm& perms) | |
9658 | { | |
11fdf7f2 TL |
9659 | std::lock_guard lock(client_lock); |
9660 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
9661 | tout(cct) << fd << std::endl; |
9662 | tout(cct) << length << std::endl; | |
9663 | ||
181888fb FG |
9664 | if (unmounting) |
9665 | return -ENOTCONN; | |
9666 | ||
7c673cae FG |
9667 | Fh *f = get_filehandle(fd); |
9668 | if (!f) | |
9669 | return -EBADF; | |
9670 | #if defined(__linux__) && defined(O_PATH) | |
9671 | if (f->flags & O_PATH) | |
9672 | return -EBADF; | |
9673 | #endif | |
9674 | struct stat attr; | |
9675 | attr.st_size = length; | |
9676 | return _setattr(f->inode, &attr, CEPH_SETATTR_SIZE, perms); | |
9677 | } | |
9678 | ||
9679 | int Client::fsync(int fd, bool syncdataonly) | |
9680 | { | |
11fdf7f2 | 9681 | std::lock_guard lock(client_lock); |
7c673cae FG |
9682 | tout(cct) << "fsync" << std::endl; |
9683 | tout(cct) << fd << std::endl; | |
9684 | tout(cct) << syncdataonly << std::endl; | |
9685 | ||
181888fb FG |
9686 | if (unmounting) |
9687 | return -ENOTCONN; | |
9688 | ||
7c673cae FG |
9689 | Fh *f = get_filehandle(fd); |
9690 | if (!f) | |
9691 | return -EBADF; | |
9692 | #if defined(__linux__) && defined(O_PATH) | |
9693 | if (f->flags & O_PATH) | |
9694 | return -EBADF; | |
9695 | #endif | |
9696 | int r = _fsync(f, syncdataonly); | |
9697 | if (r == 0) { | |
9698 | // The IOs in this fsync were okay, but maybe something happened | |
9699 | // in the background that we shoudl be reporting? | |
9700 | r = f->take_async_err(); | |
1adf2230 | 9701 | ldout(cct, 5) << "fsync(" << fd << ", " << syncdataonly |
7c673cae FG |
9702 | << ") = 0, async_err = " << r << dendl; |
9703 | } else { | |
9704 | // Assume that an error we encountered during fsync, even reported | |
9705 | // synchronously, would also have applied the error to the Fh, and we | |
9706 | // should clear it here to avoid returning the same error again on next | |
9707 | // call. | |
1adf2230 | 9708 | ldout(cct, 5) << "fsync(" << fd << ", " << syncdataonly << ") = " |
7c673cae FG |
9709 | << r << dendl; |
9710 | f->take_async_err(); | |
9711 | } | |
9712 | return r; | |
9713 | } | |
9714 | ||
9715 | int Client::_fsync(Inode *in, bool syncdataonly) | |
9716 | { | |
9717 | int r = 0; | |
11fdf7f2 | 9718 | std::unique_ptr<C_SaferCond> object_cacher_completion = nullptr; |
7c673cae FG |
9719 | ceph_tid_t flush_tid = 0; |
9720 | InodeRef tmp_ref; | |
11fdf7f2 TL |
9721 | utime_t lat; |
9722 | utime_t start = ceph_clock_now(); | |
7c673cae | 9723 | |
1adf2230 | 9724 | ldout(cct, 8) << "_fsync on " << *in << " " << (syncdataonly ? "(dataonly)":"(data+metadata)") << dendl; |
7c673cae FG |
9725 | |
9726 | if (cct->_conf->client_oc) { | |
11fdf7f2 TL |
9727 | object_cacher_completion.reset(new C_SaferCond("Client::_fsync::lock")); |
9728 | tmp_ref = in; // take a reference; C_SaferCond doesn't and _flush won't either | |
9729 | _flush(in, object_cacher_completion.get()); | |
7c673cae FG |
9730 | ldout(cct, 15) << "using return-valued form of _fsync" << dendl; |
9731 | } | |
9732 | ||
9733 | if (!syncdataonly && in->dirty_caps) { | |
9734 | check_caps(in, CHECK_CAPS_NODELAY|CHECK_CAPS_SYNCHRONOUS); | |
9735 | if (in->flushing_caps) | |
9736 | flush_tid = last_flush_tid; | |
9737 | } else ldout(cct, 10) << "no metadata needs to commit" << dendl; | |
9738 | ||
9739 | if (!syncdataonly && !in->unsafe_ops.empty()) { | |
28e407b8 AA |
9740 | flush_mdlog_sync(); |
9741 | ||
7c673cae FG |
9742 | MetaRequest *req = in->unsafe_ops.back(); |
9743 | ldout(cct, 15) << "waiting on unsafe requests, last tid " << req->get_tid() << dendl; | |
9744 | ||
9745 | req->get(); | |
9746 | wait_on_list(req->waitfor_safe); | |
9747 | put_request(req); | |
9748 | } | |
9749 | ||
11fdf7f2 | 9750 | if (nullptr != object_cacher_completion) { // wait on a real reply instead of guessing |
7c673cae | 9751 | client_lock.Unlock(); |
7c673cae | 9752 | ldout(cct, 15) << "waiting on data to flush" << dendl; |
11fdf7f2 | 9753 | r = object_cacher_completion->wait(); |
7c673cae FG |
9754 | client_lock.Lock(); |
9755 | ldout(cct, 15) << "got " << r << " from flush writeback" << dendl; | |
9756 | } else { | |
9757 | // FIXME: this can starve | |
9758 | while (in->cap_refs[CEPH_CAP_FILE_BUFFER] > 0) { | |
9759 | ldout(cct, 10) << "ino " << in->ino << " has " << in->cap_refs[CEPH_CAP_FILE_BUFFER] | |
9760 | << " uncommitted, waiting" << dendl; | |
9761 | wait_on_list(in->waitfor_commit); | |
9762 | } | |
9763 | } | |
9764 | ||
9765 | if (!r) { | |
9766 | if (flush_tid > 0) | |
9767 | wait_sync_caps(in, flush_tid); | |
9768 | ||
9769 | ldout(cct, 10) << "ino " << in->ino << " has no uncommitted writes" << dendl; | |
9770 | } else { | |
1adf2230 | 9771 | ldout(cct, 8) << "ino " << in->ino << " failed to commit to disk! " |
7c673cae FG |
9772 | << cpp_strerror(-r) << dendl; |
9773 | } | |
11fdf7f2 TL |
9774 | |
9775 | lat = ceph_clock_now(); | |
9776 | lat -= start; | |
9777 | logger->tinc(l_c_fsync, lat); | |
7c673cae FG |
9778 | |
9779 | return r; | |
9780 | } | |
9781 | ||
9782 | int Client::_fsync(Fh *f, bool syncdataonly) | |
9783 | { | |
1adf2230 | 9784 | ldout(cct, 8) << "_fsync(" << f << ", " << (syncdataonly ? "dataonly)":"data+metadata)") << dendl; |
7c673cae FG |
9785 | return _fsync(f->inode.get(), syncdataonly); |
9786 | } | |
9787 | ||
9788 | int Client::fstat(int fd, struct stat *stbuf, const UserPerm& perms, int mask) | |
9789 | { | |
11fdf7f2 | 9790 | std::lock_guard lock(client_lock); |
7c673cae FG |
9791 | tout(cct) << "fstat mask " << hex << mask << dec << std::endl; |
9792 | tout(cct) << fd << std::endl; | |
9793 | ||
181888fb FG |
9794 | if (unmounting) |
9795 | return -ENOTCONN; | |
9796 | ||
7c673cae FG |
9797 | Fh *f = get_filehandle(fd); |
9798 | if (!f) | |
9799 | return -EBADF; | |
9800 | int r = _getattr(f->inode, mask, perms); | |
9801 | if (r < 0) | |
9802 | return r; | |
9803 | fill_stat(f->inode, stbuf, NULL); | |
1adf2230 | 9804 | ldout(cct, 5) << "fstat(" << fd << ", " << stbuf << ") = " << r << dendl; |
7c673cae FG |
9805 | return r; |
9806 | } | |
9807 | ||
9808 | int Client::fstatx(int fd, struct ceph_statx *stx, const UserPerm& perms, | |
9809 | unsigned int want, unsigned int flags) | |
9810 | { | |
11fdf7f2 | 9811 | std::lock_guard lock(client_lock); |
7c673cae FG |
9812 | tout(cct) << "fstatx flags " << hex << flags << " want " << want << dec << std::endl; |
9813 | tout(cct) << fd << std::endl; | |
9814 | ||
181888fb FG |
9815 | if (unmounting) |
9816 | return -ENOTCONN; | |
9817 | ||
7c673cae FG |
9818 | Fh *f = get_filehandle(fd); |
9819 | if (!f) | |
9820 | return -EBADF; | |
9821 | ||
9822 | unsigned mask = statx_to_mask(flags, want); | |
9823 | ||
9824 | int r = 0; | |
94b18763 | 9825 | if (mask && !f->inode->caps_issued_mask(mask, true)) { |
7c673cae FG |
9826 | r = _getattr(f->inode, mask, perms); |
9827 | if (r < 0) { | |
9828 | ldout(cct, 3) << "fstatx exit on error!" << dendl; | |
9829 | return r; | |
9830 | } | |
9831 | } | |
9832 | ||
9833 | fill_statx(f->inode, mask, stx); | |
9834 | ldout(cct, 3) << "fstatx(" << fd << ", " << stx << ") = " << r << dendl; | |
9835 | return r; | |
9836 | } | |
9837 | ||
9838 | // not written yet, but i want to link! | |
9839 | ||
9840 | int Client::chdir(const char *relpath, std::string &new_cwd, | |
9841 | const UserPerm& perms) | |
9842 | { | |
11fdf7f2 | 9843 | std::lock_guard lock(client_lock); |
7c673cae FG |
9844 | tout(cct) << "chdir" << std::endl; |
9845 | tout(cct) << relpath << std::endl; | |
181888fb FG |
9846 | |
9847 | if (unmounting) | |
9848 | return -ENOTCONN; | |
9849 | ||
7c673cae FG |
9850 | filepath path(relpath); |
9851 | InodeRef in; | |
9852 | int r = path_walk(path, &in, perms); | |
9853 | if (r < 0) | |
9854 | return r; | |
9855 | if (cwd != in) | |
9856 | cwd.swap(in); | |
9857 | ldout(cct, 3) << "chdir(" << relpath << ") cwd now " << cwd->ino << dendl; | |
9858 | ||
b5b8bbf5 | 9859 | _getcwd(new_cwd, perms); |
7c673cae FG |
9860 | return 0; |
9861 | } | |
9862 | ||
b5b8bbf5 | 9863 | void Client::_getcwd(string& dir, const UserPerm& perms) |
7c673cae FG |
9864 | { |
9865 | filepath path; | |
11fdf7f2 | 9866 | ldout(cct, 10) << __func__ << " " << *cwd << dendl; |
7c673cae FG |
9867 | |
9868 | Inode *in = cwd.get(); | |
9869 | while (in != root) { | |
11fdf7f2 | 9870 | ceph_assert(in->dentries.size() < 2); // dirs can't be hard-linked |
7c673cae FG |
9871 | |
9872 | // A cwd or ancester is unlinked | |
11fdf7f2 | 9873 | if (in->dentries.empty()) { |
7c673cae FG |
9874 | return; |
9875 | } | |
9876 | ||
9877 | Dentry *dn = in->get_first_parent(); | |
9878 | ||
9879 | ||
9880 | if (!dn) { | |
9881 | // look it up | |
11fdf7f2 | 9882 | ldout(cct, 10) << __func__ << " looking up parent for " << *in << dendl; |
7c673cae FG |
9883 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_LOOKUPNAME); |
9884 | filepath path(in->ino); | |
9885 | req->set_filepath(path); | |
9886 | req->set_inode(in); | |
9887 | int res = make_request(req, perms); | |
9888 | if (res < 0) | |
9889 | break; | |
9890 | ||
9891 | // start over | |
9892 | path = filepath(); | |
9893 | in = cwd.get(); | |
9894 | continue; | |
9895 | } | |
9896 | path.push_front_dentry(dn->name); | |
9897 | in = dn->dir->parent_inode; | |
9898 | } | |
9899 | dir = "/"; | |
9900 | dir += path.get_path(); | |
9901 | } | |
9902 | ||
b5b8bbf5 FG |
9903 | void Client::getcwd(string& dir, const UserPerm& perms) |
9904 | { | |
11fdf7f2 | 9905 | std::lock_guard l(client_lock); |
181888fb FG |
9906 | if (!unmounting) |
9907 | _getcwd(dir, perms); | |
b5b8bbf5 FG |
9908 | } |
9909 | ||
7c673cae FG |
9910 | int Client::statfs(const char *path, struct statvfs *stbuf, |
9911 | const UserPerm& perms) | |
9912 | { | |
11fdf7f2 TL |
9913 | std::lock_guard l(client_lock); |
9914 | tout(cct) << __func__ << std::endl; | |
91327a77 | 9915 | unsigned long int total_files_on_fs; |
7c673cae | 9916 | |
181888fb FG |
9917 | if (unmounting) |
9918 | return -ENOTCONN; | |
9919 | ||
7c673cae FG |
9920 | ceph_statfs stats; |
9921 | C_SaferCond cond; | |
d2e6a577 FG |
9922 | |
9923 | const vector<int64_t> &data_pools = mdsmap->get_data_pools(); | |
9924 | if (data_pools.size() == 1) { | |
9925 | objecter->get_fs_stats(stats, data_pools[0], &cond); | |
9926 | } else { | |
9927 | objecter->get_fs_stats(stats, boost::optional<int64_t>(), &cond); | |
9928 | } | |
7c673cae FG |
9929 | |
9930 | client_lock.Unlock(); | |
9931 | int rval = cond.wait(); | |
91327a77 AA |
9932 | assert(root); |
9933 | total_files_on_fs = root->rstat.rfiles + root->rstat.rsubdirs; | |
7c673cae FG |
9934 | client_lock.Lock(); |
9935 | ||
9936 | if (rval < 0) { | |
9937 | ldout(cct, 1) << "underlying call to statfs returned error: " | |
9938 | << cpp_strerror(rval) | |
9939 | << dendl; | |
9940 | return rval; | |
9941 | } | |
9942 | ||
9943 | memset(stbuf, 0, sizeof(*stbuf)); | |
9944 | ||
9945 | /* | |
9946 | * we're going to set a block size of 4MB so we can represent larger | |
9947 | * FSes without overflowing. Additionally convert the space | |
9948 | * measurements from KB to bytes while making them in terms of | |
9949 | * blocks. We use 4MB only because it is big enough, and because it | |
9950 | * actually *is* the (ceph) default block size. | |
9951 | */ | |
9952 | const int CEPH_BLOCK_SHIFT = 22; | |
9953 | stbuf->f_frsize = 1 << CEPH_BLOCK_SHIFT; | |
9954 | stbuf->f_bsize = 1 << CEPH_BLOCK_SHIFT; | |
91327a77 AA |
9955 | stbuf->f_files = total_files_on_fs; |
9956 | stbuf->f_ffree = 0; | |
7c673cae FG |
9957 | stbuf->f_favail = -1; |
9958 | stbuf->f_fsid = -1; // ?? | |
9959 | stbuf->f_flag = 0; // ?? | |
9960 | stbuf->f_namemax = NAME_MAX; | |
9961 | ||
9962 | // Usually quota_root will == root_ancestor, but if the mount root has no | |
9963 | // quota but we can see a parent of it that does have a quota, we'll | |
9964 | // respect that one instead. | |
11fdf7f2 | 9965 | ceph_assert(root != nullptr); |
7c673cae FG |
9966 | Inode *quota_root = root->quota.is_enable() ? root : get_quota_root(root, perms); |
9967 | ||
9968 | // get_quota_root should always give us something | |
9969 | // because client quotas are always enabled | |
11fdf7f2 | 9970 | ceph_assert(quota_root != nullptr); |
7c673cae FG |
9971 | |
9972 | if (quota_root && cct->_conf->client_quota_df && quota_root->quota.max_bytes) { | |
9973 | ||
9974 | // Skip the getattr if any sessions are stale, as we don't want to | |
9975 | // block `df` if this client has e.g. been evicted, or if the MDS cluster | |
9976 | // is unhealthy. | |
9977 | if (!_any_stale_sessions()) { | |
9978 | int r = _getattr(quota_root, 0, perms, true); | |
9979 | if (r != 0) { | |
9980 | // Ignore return value: error getting latest inode metadata is not a good | |
9981 | // reason to break "df". | |
9982 | lderr(cct) << "Error in getattr on quota root 0x" | |
9983 | << std::hex << quota_root->ino << std::dec | |
9984 | << " statfs result may be outdated" << dendl; | |
9985 | } | |
9986 | } | |
9987 | ||
9988 | // Special case: if there is a size quota set on the Inode acting | |
9989 | // as the root for this client mount, then report the quota status | |
9990 | // as the filesystem statistics. | |
9991 | const fsblkcnt_t total = quota_root->quota.max_bytes >> CEPH_BLOCK_SHIFT; | |
9992 | const fsblkcnt_t used = quota_root->rstat.rbytes >> CEPH_BLOCK_SHIFT; | |
31f18b77 FG |
9993 | // It is possible for a quota to be exceeded: arithmetic here must |
9994 | // handle case where used > total. | |
9995 | const fsblkcnt_t free = total > used ? total - used : 0; | |
7c673cae FG |
9996 | |
9997 | stbuf->f_blocks = total; | |
9998 | stbuf->f_bfree = free; | |
9999 | stbuf->f_bavail = free; | |
10000 | } else { | |
d2e6a577 | 10001 | // General case: report the cluster statistics returned from RADOS. Because |
7c673cae FG |
10002 | // multiple pools may be used without one filesystem namespace via |
10003 | // layouts, this is the most correct thing we can do. | |
10004 | stbuf->f_blocks = stats.kb >> (CEPH_BLOCK_SHIFT - 10); | |
10005 | stbuf->f_bfree = stats.kb_avail >> (CEPH_BLOCK_SHIFT - 10); | |
10006 | stbuf->f_bavail = stats.kb_avail >> (CEPH_BLOCK_SHIFT - 10); | |
10007 | } | |
10008 | ||
10009 | return rval; | |
10010 | } | |
10011 | ||
10012 | int Client::_do_filelock(Inode *in, Fh *fh, int lock_type, int op, int sleep, | |
10013 | struct flock *fl, uint64_t owner, bool removing) | |
10014 | { | |
11fdf7f2 | 10015 | ldout(cct, 10) << __func__ << " ino " << in->ino |
7c673cae FG |
10016 | << (lock_type == CEPH_LOCK_FCNTL ? " fcntl" : " flock") |
10017 | << " type " << fl->l_type << " owner " << owner | |
10018 | << " " << fl->l_start << "~" << fl->l_len << dendl; | |
10019 | ||
10020 | int lock_cmd; | |
10021 | if (F_RDLCK == fl->l_type) | |
10022 | lock_cmd = CEPH_LOCK_SHARED; | |
10023 | else if (F_WRLCK == fl->l_type) | |
10024 | lock_cmd = CEPH_LOCK_EXCL; | |
10025 | else if (F_UNLCK == fl->l_type) | |
10026 | lock_cmd = CEPH_LOCK_UNLOCK; | |
10027 | else | |
10028 | return -EIO; | |
10029 | ||
10030 | if (op != CEPH_MDS_OP_SETFILELOCK || lock_cmd == CEPH_LOCK_UNLOCK) | |
10031 | sleep = 0; | |
10032 | ||
10033 | /* | |
10034 | * Set the most significant bit, so that MDS knows the 'owner' | |
10035 | * is sufficient to identify the owner of lock. (old code uses | |
10036 | * both 'owner' and 'pid') | |
10037 | */ | |
10038 | owner |= (1ULL << 63); | |
10039 | ||
10040 | MetaRequest *req = new MetaRequest(op); | |
10041 | filepath path; | |
10042 | in->make_nosnap_relative_path(path); | |
10043 | req->set_filepath(path); | |
10044 | req->set_inode(in); | |
10045 | ||
10046 | req->head.args.filelock_change.rule = lock_type; | |
10047 | req->head.args.filelock_change.type = lock_cmd; | |
10048 | req->head.args.filelock_change.owner = owner; | |
10049 | req->head.args.filelock_change.pid = fl->l_pid; | |
10050 | req->head.args.filelock_change.start = fl->l_start; | |
10051 | req->head.args.filelock_change.length = fl->l_len; | |
10052 | req->head.args.filelock_change.wait = sleep; | |
10053 | ||
10054 | int ret; | |
10055 | bufferlist bl; | |
10056 | ||
10057 | if (sleep && switch_interrupt_cb) { | |
10058 | // enable interrupt | |
10059 | switch_interrupt_cb(callback_handle, req->get()); | |
10060 | ret = make_request(req, fh->actor_perms, NULL, NULL, -1, &bl); | |
7c673cae FG |
10061 | // disable interrupt |
10062 | switch_interrupt_cb(callback_handle, NULL); | |
31f18b77 FG |
10063 | if (ret == 0 && req->aborted()) { |
10064 | // effect of this lock request has been revoked by the 'lock intr' request | |
10065 | ret = req->get_abort_code(); | |
10066 | } | |
7c673cae FG |
10067 | put_request(req); |
10068 | } else { | |
10069 | ret = make_request(req, fh->actor_perms, NULL, NULL, -1, &bl); | |
10070 | } | |
10071 | ||
10072 | if (ret == 0) { | |
10073 | if (op == CEPH_MDS_OP_GETFILELOCK) { | |
10074 | ceph_filelock filelock; | |
11fdf7f2 TL |
10075 | auto p = bl.cbegin(); |
10076 | decode(filelock, p); | |
7c673cae FG |
10077 | |
10078 | if (CEPH_LOCK_SHARED == filelock.type) | |
10079 | fl->l_type = F_RDLCK; | |
10080 | else if (CEPH_LOCK_EXCL == filelock.type) | |
10081 | fl->l_type = F_WRLCK; | |
10082 | else | |
10083 | fl->l_type = F_UNLCK; | |
10084 | ||
10085 | fl->l_whence = SEEK_SET; | |
10086 | fl->l_start = filelock.start; | |
10087 | fl->l_len = filelock.length; | |
10088 | fl->l_pid = filelock.pid; | |
10089 | } else if (op == CEPH_MDS_OP_SETFILELOCK) { | |
10090 | ceph_lock_state_t *lock_state; | |
10091 | if (lock_type == CEPH_LOCK_FCNTL) { | |
10092 | if (!in->fcntl_locks) | |
11fdf7f2 TL |
10093 | in->fcntl_locks.reset(new ceph_lock_state_t(cct, CEPH_LOCK_FCNTL)); |
10094 | lock_state = in->fcntl_locks.get(); | |
7c673cae FG |
10095 | } else if (lock_type == CEPH_LOCK_FLOCK) { |
10096 | if (!in->flock_locks) | |
11fdf7f2 TL |
10097 | in->flock_locks.reset(new ceph_lock_state_t(cct, CEPH_LOCK_FLOCK)); |
10098 | lock_state = in->flock_locks.get(); | |
7c673cae FG |
10099 | } else { |
10100 | ceph_abort(); | |
10101 | return -EINVAL; | |
10102 | } | |
10103 | _update_lock_state(fl, owner, lock_state); | |
10104 | ||
10105 | if (!removing) { | |
10106 | if (lock_type == CEPH_LOCK_FCNTL) { | |
10107 | if (!fh->fcntl_locks) | |
11fdf7f2 TL |
10108 | fh->fcntl_locks.reset(new ceph_lock_state_t(cct, CEPH_LOCK_FCNTL)); |
10109 | lock_state = fh->fcntl_locks.get(); | |
7c673cae FG |
10110 | } else { |
10111 | if (!fh->flock_locks) | |
11fdf7f2 TL |
10112 | fh->flock_locks.reset(new ceph_lock_state_t(cct, CEPH_LOCK_FLOCK)); |
10113 | lock_state = fh->flock_locks.get(); | |
7c673cae FG |
10114 | } |
10115 | _update_lock_state(fl, owner, lock_state); | |
10116 | } | |
10117 | } else | |
10118 | ceph_abort(); | |
10119 | } | |
10120 | return ret; | |
10121 | } | |
10122 | ||
10123 | int Client::_interrupt_filelock(MetaRequest *req) | |
10124 | { | |
31f18b77 FG |
10125 | // Set abort code, but do not kick. The abort code prevents the request |
10126 | // from being re-sent. | |
10127 | req->abort(-EINTR); | |
10128 | if (req->mds < 0) | |
10129 | return 0; // haven't sent the request | |
10130 | ||
7c673cae FG |
10131 | Inode *in = req->inode(); |
10132 | ||
10133 | int lock_type; | |
10134 | if (req->head.args.filelock_change.rule == CEPH_LOCK_FLOCK) | |
10135 | lock_type = CEPH_LOCK_FLOCK_INTR; | |
10136 | else if (req->head.args.filelock_change.rule == CEPH_LOCK_FCNTL) | |
10137 | lock_type = CEPH_LOCK_FCNTL_INTR; | |
10138 | else { | |
10139 | ceph_abort(); | |
10140 | return -EINVAL; | |
10141 | } | |
10142 | ||
10143 | MetaRequest *intr_req = new MetaRequest(CEPH_MDS_OP_SETFILELOCK); | |
10144 | filepath path; | |
10145 | in->make_nosnap_relative_path(path); | |
10146 | intr_req->set_filepath(path); | |
10147 | intr_req->set_inode(in); | |
10148 | intr_req->head.args.filelock_change = req->head.args.filelock_change; | |
10149 | intr_req->head.args.filelock_change.rule = lock_type; | |
10150 | intr_req->head.args.filelock_change.type = CEPH_LOCK_UNLOCK; | |
10151 | ||
10152 | UserPerm perms(req->get_uid(), req->get_gid()); | |
10153 | return make_request(intr_req, perms, NULL, NULL, -1); | |
10154 | } | |
10155 | ||
10156 | void Client::_encode_filelocks(Inode *in, bufferlist& bl) | |
10157 | { | |
10158 | if (!in->fcntl_locks && !in->flock_locks) | |
10159 | return; | |
10160 | ||
10161 | unsigned nr_fcntl_locks = in->fcntl_locks ? in->fcntl_locks->held_locks.size() : 0; | |
11fdf7f2 | 10162 | encode(nr_fcntl_locks, bl); |
7c673cae | 10163 | if (nr_fcntl_locks) { |
11fdf7f2 | 10164 | auto &lock_state = in->fcntl_locks; |
7c673cae FG |
10165 | for(multimap<uint64_t, ceph_filelock>::iterator p = lock_state->held_locks.begin(); |
10166 | p != lock_state->held_locks.end(); | |
10167 | ++p) | |
11fdf7f2 | 10168 | encode(p->second, bl); |
7c673cae FG |
10169 | } |
10170 | ||
10171 | unsigned nr_flock_locks = in->flock_locks ? in->flock_locks->held_locks.size() : 0; | |
11fdf7f2 | 10172 | encode(nr_flock_locks, bl); |
7c673cae | 10173 | if (nr_flock_locks) { |
11fdf7f2 | 10174 | auto &lock_state = in->flock_locks; |
7c673cae FG |
10175 | for(multimap<uint64_t, ceph_filelock>::iterator p = lock_state->held_locks.begin(); |
10176 | p != lock_state->held_locks.end(); | |
10177 | ++p) | |
11fdf7f2 | 10178 | encode(p->second, bl); |
7c673cae FG |
10179 | } |
10180 | ||
11fdf7f2 | 10181 | ldout(cct, 10) << __func__ << " ino " << in->ino << ", " << nr_fcntl_locks |
7c673cae FG |
10182 | << " fcntl locks, " << nr_flock_locks << " flock locks" << dendl; |
10183 | } | |
10184 | ||
10185 | void Client::_release_filelocks(Fh *fh) | |
10186 | { | |
10187 | if (!fh->fcntl_locks && !fh->flock_locks) | |
10188 | return; | |
10189 | ||
10190 | Inode *in = fh->inode.get(); | |
11fdf7f2 | 10191 | ldout(cct, 10) << __func__ << " " << fh << " ino " << in->ino << dendl; |
7c673cae FG |
10192 | |
10193 | list<pair<int, ceph_filelock> > to_release; | |
10194 | ||
10195 | if (fh->fcntl_locks) { | |
11fdf7f2 | 10196 | auto &lock_state = fh->fcntl_locks; |
7c673cae FG |
10197 | for(multimap<uint64_t, ceph_filelock>::iterator p = lock_state->held_locks.begin(); |
10198 | p != lock_state->held_locks.end(); | |
10199 | ++p) | |
10200 | to_release.push_back(pair<int, ceph_filelock>(CEPH_LOCK_FCNTL, p->second)); | |
11fdf7f2 | 10201 | lock_state.reset(); |
7c673cae FG |
10202 | } |
10203 | if (fh->flock_locks) { | |
11fdf7f2 | 10204 | auto &lock_state = fh->flock_locks; |
7c673cae FG |
10205 | for(multimap<uint64_t, ceph_filelock>::iterator p = lock_state->held_locks.begin(); |
10206 | p != lock_state->held_locks.end(); | |
10207 | ++p) | |
10208 | to_release.push_back(pair<int, ceph_filelock>(CEPH_LOCK_FLOCK, p->second)); | |
11fdf7f2 | 10209 | lock_state.reset(); |
7c673cae FG |
10210 | } |
10211 | ||
10212 | if (to_release.empty()) | |
10213 | return; | |
10214 | ||
11fdf7f2 TL |
10215 | // mds has already released filelocks if session was closed. |
10216 | if (in->caps.empty()) | |
10217 | return; | |
10218 | ||
7c673cae FG |
10219 | struct flock fl; |
10220 | memset(&fl, 0, sizeof(fl)); | |
10221 | fl.l_whence = SEEK_SET; | |
10222 | fl.l_type = F_UNLCK; | |
10223 | ||
10224 | for (list<pair<int, ceph_filelock> >::iterator p = to_release.begin(); | |
10225 | p != to_release.end(); | |
10226 | ++p) { | |
10227 | fl.l_start = p->second.start; | |
10228 | fl.l_len = p->second.length; | |
10229 | fl.l_pid = p->second.pid; | |
10230 | _do_filelock(in, fh, p->first, CEPH_MDS_OP_SETFILELOCK, 0, &fl, | |
10231 | p->second.owner, true); | |
10232 | } | |
10233 | } | |
10234 | ||
10235 | void Client::_update_lock_state(struct flock *fl, uint64_t owner, | |
10236 | ceph_lock_state_t *lock_state) | |
10237 | { | |
10238 | int lock_cmd; | |
10239 | if (F_RDLCK == fl->l_type) | |
10240 | lock_cmd = CEPH_LOCK_SHARED; | |
10241 | else if (F_WRLCK == fl->l_type) | |
10242 | lock_cmd = CEPH_LOCK_EXCL; | |
10243 | else | |
10244 | lock_cmd = CEPH_LOCK_UNLOCK;; | |
10245 | ||
10246 | ceph_filelock filelock; | |
10247 | filelock.start = fl->l_start; | |
10248 | filelock.length = fl->l_len; | |
10249 | filelock.client = 0; | |
10250 | // see comment in _do_filelock() | |
10251 | filelock.owner = owner | (1ULL << 63); | |
10252 | filelock.pid = fl->l_pid; | |
10253 | filelock.type = lock_cmd; | |
10254 | ||
10255 | if (filelock.type == CEPH_LOCK_UNLOCK) { | |
10256 | list<ceph_filelock> activated_locks; | |
10257 | lock_state->remove_lock(filelock, activated_locks); | |
10258 | } else { | |
10259 | bool r = lock_state->add_lock(filelock, false, false, NULL); | |
11fdf7f2 | 10260 | ceph_assert(r); |
7c673cae FG |
10261 | } |
10262 | } | |
10263 | ||
10264 | int Client::_getlk(Fh *fh, struct flock *fl, uint64_t owner) | |
10265 | { | |
10266 | Inode *in = fh->inode.get(); | |
10267 | ldout(cct, 10) << "_getlk " << fh << " ino " << in->ino << dendl; | |
10268 | int ret = _do_filelock(in, fh, CEPH_LOCK_FCNTL, CEPH_MDS_OP_GETFILELOCK, 0, fl, owner); | |
10269 | return ret; | |
10270 | } | |
10271 | ||
10272 | int Client::_setlk(Fh *fh, struct flock *fl, uint64_t owner, int sleep) | |
10273 | { | |
10274 | Inode *in = fh->inode.get(); | |
10275 | ldout(cct, 10) << "_setlk " << fh << " ino " << in->ino << dendl; | |
10276 | int ret = _do_filelock(in, fh, CEPH_LOCK_FCNTL, CEPH_MDS_OP_SETFILELOCK, sleep, fl, owner); | |
10277 | ldout(cct, 10) << "_setlk " << fh << " ino " << in->ino << " result=" << ret << dendl; | |
10278 | return ret; | |
10279 | } | |
10280 | ||
10281 | int Client::_flock(Fh *fh, int cmd, uint64_t owner) | |
10282 | { | |
10283 | Inode *in = fh->inode.get(); | |
10284 | ldout(cct, 10) << "_flock " << fh << " ino " << in->ino << dendl; | |
10285 | ||
10286 | int sleep = !(cmd & LOCK_NB); | |
10287 | cmd &= ~LOCK_NB; | |
10288 | ||
10289 | int type; | |
10290 | switch (cmd) { | |
10291 | case LOCK_SH: | |
10292 | type = F_RDLCK; | |
10293 | break; | |
10294 | case LOCK_EX: | |
10295 | type = F_WRLCK; | |
10296 | break; | |
10297 | case LOCK_UN: | |
10298 | type = F_UNLCK; | |
10299 | break; | |
10300 | default: | |
10301 | return -EINVAL; | |
10302 | } | |
10303 | ||
10304 | struct flock fl; | |
10305 | memset(&fl, 0, sizeof(fl)); | |
10306 | fl.l_type = type; | |
10307 | fl.l_whence = SEEK_SET; | |
10308 | ||
10309 | int ret = _do_filelock(in, fh, CEPH_LOCK_FLOCK, CEPH_MDS_OP_SETFILELOCK, sleep, &fl, owner); | |
10310 | ldout(cct, 10) << "_flock " << fh << " ino " << in->ino << " result=" << ret << dendl; | |
10311 | return ret; | |
10312 | } | |
10313 | ||
10314 | int Client::ll_statfs(Inode *in, struct statvfs *stbuf, const UserPerm& perms) | |
10315 | { | |
10316 | /* Since the only thing this does is wrap a call to statfs, and | |
10317 | statfs takes a lock, it doesn't seem we have a need to split it | |
10318 | out. */ | |
10319 | return statfs(0, stbuf, perms); | |
10320 | } | |
10321 | ||
10322 | void Client::ll_register_callbacks(struct client_callback_args *args) | |
10323 | { | |
10324 | if (!args) | |
10325 | return; | |
11fdf7f2 TL |
10326 | std::lock_guard l(client_lock); |
10327 | ldout(cct, 10) << __func__ << " cb " << args->handle | |
7c673cae FG |
10328 | << " invalidate_ino_cb " << args->ino_cb |
10329 | << " invalidate_dentry_cb " << args->dentry_cb | |
7c673cae FG |
10330 | << " switch_interrupt_cb " << args->switch_intr_cb |
10331 | << " remount_cb " << args->remount_cb | |
10332 | << dendl; | |
10333 | callback_handle = args->handle; | |
10334 | if (args->ino_cb) { | |
10335 | ino_invalidate_cb = args->ino_cb; | |
10336 | async_ino_invalidator.start(); | |
10337 | } | |
10338 | if (args->dentry_cb) { | |
10339 | dentry_invalidate_cb = args->dentry_cb; | |
10340 | async_dentry_invalidator.start(); | |
10341 | } | |
10342 | if (args->switch_intr_cb) { | |
10343 | switch_interrupt_cb = args->switch_intr_cb; | |
10344 | interrupt_finisher.start(); | |
10345 | } | |
10346 | if (args->remount_cb) { | |
10347 | remount_cb = args->remount_cb; | |
10348 | remount_finisher.start(); | |
10349 | } | |
7c673cae FG |
10350 | umask_cb = args->umask_cb; |
10351 | } | |
10352 | ||
10353 | int Client::test_dentry_handling(bool can_invalidate) | |
10354 | { | |
10355 | int r = 0; | |
10356 | ||
10357 | can_invalidate_dentries = can_invalidate; | |
10358 | ||
10359 | if (can_invalidate_dentries) { | |
11fdf7f2 | 10360 | ceph_assert(dentry_invalidate_cb); |
7c673cae | 10361 | ldout(cct, 1) << "using dentry_invalidate_cb" << dendl; |
b32b8144 | 10362 | r = 0; |
11fdf7f2 TL |
10363 | } else { |
10364 | ceph_assert(remount_cb); | |
7c673cae | 10365 | ldout(cct, 1) << "using remount_cb" << dendl; |
91327a77 | 10366 | r = _do_remount(false); |
b32b8144 | 10367 | } |
11fdf7f2 | 10368 | |
7c673cae FG |
10369 | return r; |
10370 | } | |
10371 | ||
10372 | int Client::_sync_fs() | |
10373 | { | |
11fdf7f2 | 10374 | ldout(cct, 10) << __func__ << dendl; |
7c673cae FG |
10375 | |
10376 | // flush file data | |
11fdf7f2 TL |
10377 | std::unique_ptr<C_SaferCond> cond = nullptr; |
10378 | if (cct->_conf->client_oc) { | |
10379 | cond.reset(new C_SaferCond("Client::_sync_fs:lock")); | |
10380 | objectcacher->flush_all(cond.get()); | |
10381 | } | |
7c673cae FG |
10382 | |
10383 | // flush caps | |
10384 | flush_caps_sync(); | |
10385 | ceph_tid_t flush_tid = last_flush_tid; | |
10386 | ||
10387 | // wait for unsafe mds requests | |
10388 | wait_unsafe_requests(); | |
10389 | ||
10390 | wait_sync_caps(flush_tid); | |
10391 | ||
11fdf7f2 | 10392 | if (nullptr != cond) { |
7c673cae | 10393 | client_lock.Unlock(); |
11fdf7f2 TL |
10394 | ldout(cct, 15) << __func__ << " waiting on data to flush" << dendl; |
10395 | cond->wait(); | |
10396 | ldout(cct, 15) << __func__ << " flush finished" << dendl; | |
7c673cae FG |
10397 | client_lock.Lock(); |
10398 | } | |
10399 | ||
10400 | return 0; | |
10401 | } | |
10402 | ||
10403 | int Client::sync_fs() | |
10404 | { | |
11fdf7f2 | 10405 | std::lock_guard l(client_lock); |
181888fb FG |
10406 | |
10407 | if (unmounting) | |
10408 | return -ENOTCONN; | |
10409 | ||
7c673cae FG |
10410 | return _sync_fs(); |
10411 | } | |
10412 | ||
10413 | int64_t Client::drop_caches() | |
10414 | { | |
11fdf7f2 | 10415 | std::lock_guard l(client_lock); |
7c673cae FG |
10416 | return objectcacher->release_all(); |
10417 | } | |
10418 | ||
11fdf7f2 TL |
10419 | int Client::_lazyio(Fh *fh, int enable) |
10420 | { | |
10421 | Inode *in = fh->inode.get(); | |
10422 | ldout(cct, 20) << __func__ << " " << *in << " " << !!enable << dendl; | |
10423 | ||
10424 | if (!!(fh->mode & CEPH_FILE_MODE_LAZY) == !!enable) | |
10425 | return 0; | |
10426 | ||
10427 | int orig_mode = fh->mode; | |
10428 | if (enable) { | |
10429 | fh->mode |= CEPH_FILE_MODE_LAZY; | |
10430 | in->get_open_ref(fh->mode); | |
10431 | in->put_open_ref(orig_mode); | |
10432 | check_caps(in, CHECK_CAPS_NODELAY); | |
10433 | } else { | |
10434 | fh->mode &= ~CEPH_FILE_MODE_LAZY; | |
10435 | in->get_open_ref(fh->mode); | |
10436 | in->put_open_ref(orig_mode); | |
10437 | check_caps(in, 0); | |
10438 | } | |
10439 | ||
10440 | return 0; | |
10441 | } | |
10442 | ||
10443 | int Client::lazyio(int fd, int enable) | |
10444 | { | |
10445 | std::lock_guard l(client_lock); | |
10446 | Fh *f = get_filehandle(fd); | |
10447 | if (!f) | |
10448 | return -EBADF; | |
10449 | ||
10450 | return _lazyio(f, enable); | |
10451 | } | |
10452 | ||
10453 | int Client::ll_lazyio(Fh *fh, int enable) | |
10454 | { | |
10455 | std::lock_guard lock(client_lock); | |
10456 | ldout(cct, 3) << __func__ << " " << fh << " " << fh->inode->ino << " " << !!enable << dendl; | |
10457 | tout(cct) << __func__ << std::endl; | |
10458 | ||
10459 | return _lazyio(fh, enable); | |
10460 | } | |
7c673cae FG |
10461 | |
10462 | int Client::lazyio_propogate(int fd, loff_t offset, size_t count) | |
10463 | { | |
11fdf7f2 | 10464 | std::lock_guard l(client_lock); |
7c673cae FG |
10465 | ldout(cct, 3) << "op: client->lazyio_propogate(" << fd |
10466 | << ", " << offset << ", " << count << ")" << dendl; | |
10467 | ||
10468 | Fh *f = get_filehandle(fd); | |
10469 | if (!f) | |
10470 | return -EBADF; | |
10471 | ||
10472 | // for now | |
10473 | _fsync(f, true); | |
10474 | ||
10475 | return 0; | |
10476 | } | |
10477 | ||
10478 | int Client::lazyio_synchronize(int fd, loff_t offset, size_t count) | |
10479 | { | |
11fdf7f2 | 10480 | std::lock_guard l(client_lock); |
7c673cae FG |
10481 | ldout(cct, 3) << "op: client->lazyio_synchronize(" << fd |
10482 | << ", " << offset << ", " << count << ")" << dendl; | |
10483 | ||
10484 | Fh *f = get_filehandle(fd); | |
10485 | if (!f) | |
10486 | return -EBADF; | |
10487 | Inode *in = f->inode.get(); | |
10488 | ||
10489 | _fsync(f, true); | |
10490 | if (_release(in)) | |
10491 | check_caps(in, 0); | |
10492 | return 0; | |
10493 | } | |
10494 | ||
10495 | ||
10496 | // ============================= | |
10497 | // snaps | |
10498 | ||
10499 | int Client::mksnap(const char *relpath, const char *name, const UserPerm& perm) | |
10500 | { | |
11fdf7f2 | 10501 | std::lock_guard l(client_lock); |
181888fb FG |
10502 | |
10503 | if (unmounting) | |
10504 | return -ENOTCONN; | |
10505 | ||
7c673cae FG |
10506 | filepath path(relpath); |
10507 | InodeRef in; | |
10508 | int r = path_walk(path, &in, perm); | |
10509 | if (r < 0) | |
10510 | return r; | |
10511 | if (cct->_conf->client_permissions) { | |
10512 | r = may_create(in.get(), perm); | |
10513 | if (r < 0) | |
10514 | return r; | |
10515 | } | |
10516 | Inode *snapdir = open_snapdir(in.get()); | |
10517 | return _mkdir(snapdir, name, 0, perm); | |
10518 | } | |
181888fb | 10519 | |
7c673cae FG |
10520 | int Client::rmsnap(const char *relpath, const char *name, const UserPerm& perms) |
10521 | { | |
11fdf7f2 | 10522 | std::lock_guard l(client_lock); |
181888fb FG |
10523 | |
10524 | if (unmounting) | |
10525 | return -ENOTCONN; | |
10526 | ||
7c673cae FG |
10527 | filepath path(relpath); |
10528 | InodeRef in; | |
10529 | int r = path_walk(path, &in, perms); | |
10530 | if (r < 0) | |
10531 | return r; | |
10532 | if (cct->_conf->client_permissions) { | |
10533 | r = may_delete(in.get(), NULL, perms); | |
10534 | if (r < 0) | |
10535 | return r; | |
10536 | } | |
10537 | Inode *snapdir = open_snapdir(in.get()); | |
10538 | return _rmdir(snapdir, name, perms); | |
10539 | } | |
10540 | ||
10541 | // ============================= | |
10542 | // expose caps | |
10543 | ||
10544 | int Client::get_caps_issued(int fd) { | |
10545 | ||
11fdf7f2 | 10546 | std::lock_guard lock(client_lock); |
7c673cae | 10547 | |
181888fb FG |
10548 | if (unmounting) |
10549 | return -ENOTCONN; | |
10550 | ||
7c673cae FG |
10551 | Fh *f = get_filehandle(fd); |
10552 | if (!f) | |
10553 | return -EBADF; | |
10554 | ||
10555 | return f->inode->caps_issued(); | |
10556 | } | |
10557 | ||
10558 | int Client::get_caps_issued(const char *path, const UserPerm& perms) | |
10559 | { | |
11fdf7f2 | 10560 | std::lock_guard lock(client_lock); |
181888fb FG |
10561 | |
10562 | if (unmounting) | |
10563 | return -ENOTCONN; | |
10564 | ||
7c673cae FG |
10565 | filepath p(path); |
10566 | InodeRef in; | |
10567 | int r = path_walk(p, &in, perms, true); | |
10568 | if (r < 0) | |
10569 | return r; | |
10570 | return in->caps_issued(); | |
10571 | } | |
10572 | ||
10573 | // ========================================= | |
10574 | // low level | |
10575 | ||
10576 | Inode *Client::open_snapdir(Inode *diri) | |
10577 | { | |
10578 | Inode *in; | |
10579 | vinodeno_t vino(diri->ino, CEPH_SNAPDIR); | |
10580 | if (!inode_map.count(vino)) { | |
10581 | in = new Inode(this, vino, &diri->layout); | |
10582 | ||
10583 | in->ino = diri->ino; | |
10584 | in->snapid = CEPH_SNAPDIR; | |
10585 | in->mode = diri->mode; | |
10586 | in->uid = diri->uid; | |
10587 | in->gid = diri->gid; | |
494da23a | 10588 | in->nlink = 1; |
7c673cae FG |
10589 | in->mtime = diri->mtime; |
10590 | in->ctime = diri->ctime; | |
10591 | in->btime = diri->btime; | |
10592 | in->size = diri->size; | |
10593 | in->change_attr = diri->change_attr; | |
10594 | ||
10595 | in->dirfragtree.clear(); | |
10596 | in->snapdir_parent = diri; | |
10597 | diri->flags |= I_SNAPDIR_OPEN; | |
10598 | inode_map[vino] = in; | |
10599 | if (use_faked_inos()) | |
10600 | _assign_faked_ino(in); | |
10601 | ldout(cct, 10) << "open_snapdir created snapshot inode " << *in << dendl; | |
10602 | } else { | |
10603 | in = inode_map[vino]; | |
10604 | ldout(cct, 10) << "open_snapdir had snapshot inode " << *in << dendl; | |
10605 | } | |
10606 | return in; | |
10607 | } | |
10608 | ||
10609 | int Client::ll_lookup(Inode *parent, const char *name, struct stat *attr, | |
10610 | Inode **out, const UserPerm& perms) | |
10611 | { | |
11fdf7f2 | 10612 | std::lock_guard lock(client_lock); |
31f18b77 | 10613 | vinodeno_t vparent = _get_vino(parent); |
11fdf7f2 TL |
10614 | ldout(cct, 3) << __func__ << " " << vparent << " " << name << dendl; |
10615 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
10616 | tout(cct) << name << std::endl; |
10617 | ||
181888fb FG |
10618 | if (unmounting) |
10619 | return -ENOTCONN; | |
10620 | ||
7c673cae | 10621 | int r = 0; |
11fdf7f2 TL |
10622 | auto fuse_default_permissions = cct->_conf.get_val<bool>( |
10623 | "fuse_default_permissions"); | |
10624 | if (!fuse_default_permissions) { | |
10625 | if (strcmp(name, ".") && strcmp(name, "..")) { | |
10626 | r = may_lookup(parent, perms); | |
10627 | if (r < 0) | |
10628 | return r; | |
10629 | } | |
7c673cae FG |
10630 | } |
10631 | ||
10632 | string dname(name); | |
10633 | InodeRef in; | |
10634 | ||
10635 | r = _lookup(parent, dname, CEPH_STAT_CAP_INODE_ALL, &in, perms); | |
10636 | if (r < 0) { | |
10637 | attr->st_ino = 0; | |
10638 | goto out; | |
10639 | } | |
10640 | ||
11fdf7f2 | 10641 | ceph_assert(in); |
7c673cae FG |
10642 | fill_stat(in, attr); |
10643 | _ll_get(in.get()); | |
10644 | ||
10645 | out: | |
11fdf7f2 | 10646 | ldout(cct, 3) << __func__ << " " << vparent << " " << name |
7c673cae FG |
10647 | << " -> " << r << " (" << hex << attr->st_ino << dec << ")" << dendl; |
10648 | tout(cct) << attr->st_ino << std::endl; | |
10649 | *out = in.get(); | |
10650 | return r; | |
10651 | } | |
10652 | ||
1adf2230 AA |
10653 | int Client::ll_lookup_inode( |
10654 | struct inodeno_t ino, | |
10655 | const UserPerm& perms, | |
10656 | Inode **inode) | |
10657 | { | |
81eedcae | 10658 | ceph_assert(inode != NULL); |
11fdf7f2 | 10659 | std::lock_guard lock(client_lock); |
1adf2230 AA |
10660 | ldout(cct, 3) << "ll_lookup_inode " << ino << dendl; |
10661 | ||
81eedcae TL |
10662 | if (unmounting) |
10663 | return -ENOTCONN; | |
10664 | ||
1adf2230 AA |
10665 | // Num1: get inode and *inode |
10666 | int r = _lookup_ino(ino, perms, inode); | |
81eedcae | 10667 | if (r) |
1adf2230 | 10668 | return r; |
81eedcae | 10669 | |
11fdf7f2 | 10670 | ceph_assert(*inode != NULL); |
1adf2230 | 10671 | |
81eedcae TL |
10672 | if (!(*inode)->dentries.empty()) { |
10673 | ldout(cct, 8) << __func__ << " dentry already present" << dendl; | |
10674 | return 0; | |
10675 | } | |
10676 | ||
10677 | if ((*inode)->is_root()) { | |
10678 | ldout(cct, 8) << "ino is root, no parent" << dendl; | |
10679 | return 0; | |
10680 | } | |
10681 | ||
1adf2230 AA |
10682 | // Num2: Request the parent inode, so that we can look up the name |
10683 | Inode *parent; | |
10684 | r = _lookup_parent(*inode, perms, &parent); | |
81eedcae | 10685 | if (r) { |
1adf2230 AA |
10686 | _ll_forget(*inode, 1); |
10687 | return r; | |
1adf2230 | 10688 | } |
81eedcae | 10689 | |
11fdf7f2 | 10690 | ceph_assert(parent != NULL); |
1adf2230 AA |
10691 | |
10692 | // Num3: Finally, get the name (dentry) of the requested inode | |
10693 | r = _lookup_name(*inode, parent, perms); | |
10694 | if (r) { | |
10695 | // Unexpected error | |
10696 | _ll_forget(parent, 1); | |
10697 | _ll_forget(*inode, 1); | |
10698 | return r; | |
10699 | } | |
10700 | ||
10701 | _ll_forget(parent, 1); | |
10702 | return 0; | |
10703 | } | |
10704 | ||
7c673cae FG |
10705 | int Client::ll_lookupx(Inode *parent, const char *name, Inode **out, |
10706 | struct ceph_statx *stx, unsigned want, unsigned flags, | |
10707 | const UserPerm& perms) | |
10708 | { | |
11fdf7f2 | 10709 | std::lock_guard lock(client_lock); |
31f18b77 | 10710 | vinodeno_t vparent = _get_vino(parent); |
11fdf7f2 | 10711 | ldout(cct, 3) << __func__ << " " << vparent << " " << name << dendl; |
7c673cae FG |
10712 | tout(cct) << "ll_lookupx" << std::endl; |
10713 | tout(cct) << name << std::endl; | |
10714 | ||
181888fb FG |
10715 | if (unmounting) |
10716 | return -ENOTCONN; | |
10717 | ||
7c673cae | 10718 | int r = 0; |
11fdf7f2 TL |
10719 | auto fuse_default_permissions = cct->_conf.get_val<bool>( |
10720 | "fuse_default_permissions"); | |
10721 | if (!fuse_default_permissions) { | |
7c673cae FG |
10722 | r = may_lookup(parent, perms); |
10723 | if (r < 0) | |
10724 | return r; | |
10725 | } | |
10726 | ||
10727 | string dname(name); | |
10728 | InodeRef in; | |
10729 | ||
10730 | unsigned mask = statx_to_mask(flags, want); | |
10731 | r = _lookup(parent, dname, mask, &in, perms); | |
10732 | if (r < 0) { | |
10733 | stx->stx_ino = 0; | |
10734 | stx->stx_mask = 0; | |
10735 | } else { | |
11fdf7f2 | 10736 | ceph_assert(in); |
7c673cae FG |
10737 | fill_statx(in, mask, stx); |
10738 | _ll_get(in.get()); | |
10739 | } | |
10740 | ||
11fdf7f2 | 10741 | ldout(cct, 3) << __func__ << " " << vparent << " " << name |
7c673cae FG |
10742 | << " -> " << r << " (" << hex << stx->stx_ino << dec << ")" << dendl; |
10743 | tout(cct) << stx->stx_ino << std::endl; | |
10744 | *out = in.get(); | |
10745 | return r; | |
10746 | } | |
10747 | ||
10748 | int Client::ll_walk(const char* name, Inode **out, struct ceph_statx *stx, | |
10749 | unsigned int want, unsigned int flags, const UserPerm& perms) | |
10750 | { | |
11fdf7f2 | 10751 | std::lock_guard lock(client_lock); |
181888fb FG |
10752 | |
10753 | if (unmounting) | |
10754 | return -ENOTCONN; | |
10755 | ||
7c673cae FG |
10756 | filepath fp(name, 0); |
10757 | InodeRef in; | |
10758 | int rc; | |
10759 | unsigned mask = statx_to_mask(flags, want); | |
10760 | ||
11fdf7f2 TL |
10761 | ldout(cct, 3) << __func__ << " " << name << dendl; |
10762 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
10763 | tout(cct) << name << std::endl; |
10764 | ||
10765 | rc = path_walk(fp, &in, perms, !(flags & AT_SYMLINK_NOFOLLOW), mask); | |
10766 | if (rc < 0) { | |
10767 | /* zero out mask, just in case... */ | |
10768 | stx->stx_mask = 0; | |
10769 | stx->stx_ino = 0; | |
10770 | *out = NULL; | |
10771 | return rc; | |
10772 | } else { | |
11fdf7f2 | 10773 | ceph_assert(in); |
7c673cae FG |
10774 | fill_statx(in, mask, stx); |
10775 | _ll_get(in.get()); | |
10776 | *out = in.get(); | |
10777 | return 0; | |
10778 | } | |
10779 | } | |
10780 | ||
10781 | void Client::_ll_get(Inode *in) | |
10782 | { | |
10783 | if (in->ll_ref == 0) { | |
10784 | in->get(); | |
11fdf7f2 TL |
10785 | if (in->is_dir() && !in->dentries.empty()) { |
10786 | ceph_assert(in->dentries.size() == 1); // dirs can't be hard-linked | |
7c673cae FG |
10787 | in->get_first_parent()->get(); // pin dentry |
10788 | } | |
11fdf7f2 TL |
10789 | if (in->snapid != CEPH_NOSNAP) |
10790 | ll_snap_ref[in->snapid]++; | |
7c673cae FG |
10791 | } |
10792 | in->ll_get(); | |
11fdf7f2 | 10793 | ldout(cct, 20) << __func__ << " " << in << " " << in->ino << " -> " << in->ll_ref << dendl; |
7c673cae FG |
10794 | } |
10795 | ||
494da23a | 10796 | int Client::_ll_put(Inode *in, uint64_t num) |
7c673cae FG |
10797 | { |
10798 | in->ll_put(num); | |
11fdf7f2 | 10799 | ldout(cct, 20) << __func__ << " " << in << " " << in->ino << " " << num << " -> " << in->ll_ref << dendl; |
7c673cae | 10800 | if (in->ll_ref == 0) { |
11fdf7f2 TL |
10801 | if (in->is_dir() && !in->dentries.empty()) { |
10802 | ceph_assert(in->dentries.size() == 1); // dirs can't be hard-linked | |
7c673cae FG |
10803 | in->get_first_parent()->put(); // unpin dentry |
10804 | } | |
11fdf7f2 TL |
10805 | if (in->snapid != CEPH_NOSNAP) { |
10806 | auto p = ll_snap_ref.find(in->snapid); | |
10807 | ceph_assert(p != ll_snap_ref.end()); | |
10808 | ceph_assert(p->second > 0); | |
10809 | if (--p->second == 0) | |
10810 | ll_snap_ref.erase(p); | |
10811 | } | |
7c673cae FG |
10812 | put_inode(in); |
10813 | return 0; | |
10814 | } else { | |
10815 | return in->ll_ref; | |
10816 | } | |
10817 | } | |
10818 | ||
10819 | void Client::_ll_drop_pins() | |
10820 | { | |
11fdf7f2 | 10821 | ldout(cct, 10) << __func__ << dendl; |
1adf2230 | 10822 | std::set<InodeRef> to_be_put; //this set will be deconstructed item by item when exit |
7c673cae FG |
10823 | ceph::unordered_map<vinodeno_t, Inode*>::iterator next; |
10824 | for (ceph::unordered_map<vinodeno_t, Inode*>::iterator it = inode_map.begin(); | |
10825 | it != inode_map.end(); | |
10826 | it = next) { | |
10827 | Inode *in = it->second; | |
10828 | next = it; | |
10829 | ++next; | |
1adf2230 AA |
10830 | if (in->ll_ref){ |
10831 | to_be_put.insert(in); | |
7c673cae | 10832 | _ll_put(in, in->ll_ref); |
1adf2230 | 10833 | } |
7c673cae FG |
10834 | } |
10835 | } | |
10836 | ||
494da23a | 10837 | bool Client::_ll_forget(Inode *in, uint64_t count) |
7c673cae | 10838 | { |
11fdf7f2 | 10839 | inodeno_t ino = in->ino; |
7c673cae | 10840 | |
11fdf7f2 TL |
10841 | ldout(cct, 8) << __func__ << " " << ino << " " << count << dendl; |
10842 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
10843 | tout(cct) << ino.val << std::endl; |
10844 | tout(cct) << count << std::endl; | |
10845 | ||
181888fb FG |
10846 | // Ignore forget if we're no longer mounted |
10847 | if (unmounting) | |
10848 | return true; | |
10849 | ||
7c673cae FG |
10850 | if (ino == 1) return true; // ignore forget on root. |
10851 | ||
10852 | bool last = false; | |
10853 | if (in->ll_ref < count) { | |
10854 | ldout(cct, 1) << "WARNING: ll_forget on " << ino << " " << count | |
10855 | << ", which only has ll_ref=" << in->ll_ref << dendl; | |
10856 | _ll_put(in, in->ll_ref); | |
10857 | last = true; | |
10858 | } else { | |
10859 | if (_ll_put(in, count) == 0) | |
10860 | last = true; | |
10861 | } | |
10862 | ||
10863 | return last; | |
10864 | } | |
10865 | ||
494da23a | 10866 | bool Client::ll_forget(Inode *in, uint64_t count) |
1adf2230 | 10867 | { |
11fdf7f2 | 10868 | std::lock_guard lock(client_lock); |
1adf2230 AA |
10869 | return _ll_forget(in, count); |
10870 | } | |
10871 | ||
7c673cae FG |
10872 | bool Client::ll_put(Inode *in) |
10873 | { | |
10874 | /* ll_forget already takes the lock */ | |
10875 | return ll_forget(in, 1); | |
10876 | } | |
10877 | ||
11fdf7f2 TL |
10878 | int Client::ll_get_snap_ref(snapid_t snap) |
10879 | { | |
10880 | std::lock_guard lock(client_lock); | |
10881 | auto p = ll_snap_ref.find(snap); | |
10882 | if (p != ll_snap_ref.end()) | |
10883 | return p->second; | |
10884 | return 0; | |
10885 | } | |
10886 | ||
7c673cae FG |
10887 | snapid_t Client::ll_get_snapid(Inode *in) |
10888 | { | |
11fdf7f2 | 10889 | std::lock_guard lock(client_lock); |
7c673cae FG |
10890 | return in->snapid; |
10891 | } | |
10892 | ||
10893 | Inode *Client::ll_get_inode(ino_t ino) | |
10894 | { | |
11fdf7f2 | 10895 | std::lock_guard lock(client_lock); |
181888fb FG |
10896 | |
10897 | if (unmounting) | |
10898 | return NULL; | |
10899 | ||
7c673cae FG |
10900 | vinodeno_t vino = _map_faked_ino(ino); |
10901 | unordered_map<vinodeno_t,Inode*>::iterator p = inode_map.find(vino); | |
10902 | if (p == inode_map.end()) | |
10903 | return NULL; | |
10904 | Inode *in = p->second; | |
10905 | _ll_get(in); | |
10906 | return in; | |
10907 | } | |
10908 | ||
10909 | Inode *Client::ll_get_inode(vinodeno_t vino) | |
10910 | { | |
11fdf7f2 | 10911 | std::lock_guard lock(client_lock); |
181888fb FG |
10912 | |
10913 | if (unmounting) | |
10914 | return NULL; | |
10915 | ||
7c673cae FG |
10916 | unordered_map<vinodeno_t,Inode*>::iterator p = inode_map.find(vino); |
10917 | if (p == inode_map.end()) | |
10918 | return NULL; | |
10919 | Inode *in = p->second; | |
10920 | _ll_get(in); | |
10921 | return in; | |
10922 | } | |
10923 | ||
10924 | int Client::_ll_getattr(Inode *in, int caps, const UserPerm& perms) | |
10925 | { | |
10926 | vinodeno_t vino = _get_vino(in); | |
10927 | ||
11fdf7f2 TL |
10928 | ldout(cct, 8) << __func__ << " " << vino << dendl; |
10929 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
10930 | tout(cct) << vino.ino.val << std::endl; |
10931 | ||
10932 | if (vino.snapid < CEPH_NOSNAP) | |
10933 | return 0; | |
10934 | else | |
10935 | return _getattr(in, caps, perms); | |
10936 | } | |
10937 | ||
10938 | int Client::ll_getattr(Inode *in, struct stat *attr, const UserPerm& perms) | |
10939 | { | |
11fdf7f2 | 10940 | std::lock_guard lock(client_lock); |
7c673cae | 10941 | |
181888fb FG |
10942 | if (unmounting) |
10943 | return -ENOTCONN; | |
10944 | ||
7c673cae FG |
10945 | int res = _ll_getattr(in, CEPH_STAT_CAP_INODE_ALL, perms); |
10946 | ||
10947 | if (res == 0) | |
10948 | fill_stat(in, attr); | |
11fdf7f2 | 10949 | ldout(cct, 3) << __func__ << " " << _get_vino(in) << " = " << res << dendl; |
7c673cae FG |
10950 | return res; |
10951 | } | |
10952 | ||
10953 | int Client::ll_getattrx(Inode *in, struct ceph_statx *stx, unsigned int want, | |
10954 | unsigned int flags, const UserPerm& perms) | |
10955 | { | |
11fdf7f2 | 10956 | std::lock_guard lock(client_lock); |
7c673cae | 10957 | |
181888fb FG |
10958 | if (unmounting) |
10959 | return -ENOTCONN; | |
10960 | ||
7c673cae FG |
10961 | int res = 0; |
10962 | unsigned mask = statx_to_mask(flags, want); | |
10963 | ||
94b18763 | 10964 | if (mask && !in->caps_issued_mask(mask, true)) |
7c673cae FG |
10965 | res = _ll_getattr(in, mask, perms); |
10966 | ||
10967 | if (res == 0) | |
10968 | fill_statx(in, mask, stx); | |
11fdf7f2 | 10969 | ldout(cct, 3) << __func__ << " " << _get_vino(in) << " = " << res << dendl; |
7c673cae FG |
10970 | return res; |
10971 | } | |
10972 | ||
10973 | int Client::_ll_setattrx(Inode *in, struct ceph_statx *stx, int mask, | |
10974 | const UserPerm& perms, InodeRef *inp) | |
10975 | { | |
10976 | vinodeno_t vino = _get_vino(in); | |
10977 | ||
11fdf7f2 | 10978 | ldout(cct, 8) << __func__ << " " << vino << " mask " << hex << mask << dec |
7c673cae | 10979 | << dendl; |
11fdf7f2 | 10980 | tout(cct) << __func__ << std::endl; |
7c673cae FG |
10981 | tout(cct) << vino.ino.val << std::endl; |
10982 | tout(cct) << stx->stx_mode << std::endl; | |
10983 | tout(cct) << stx->stx_uid << std::endl; | |
10984 | tout(cct) << stx->stx_gid << std::endl; | |
10985 | tout(cct) << stx->stx_size << std::endl; | |
10986 | tout(cct) << stx->stx_mtime << std::endl; | |
10987 | tout(cct) << stx->stx_atime << std::endl; | |
10988 | tout(cct) << stx->stx_btime << std::endl; | |
10989 | tout(cct) << mask << std::endl; | |
10990 | ||
11fdf7f2 TL |
10991 | auto fuse_default_permissions = cct->_conf.get_val<bool>( |
10992 | "fuse_default_permissions"); | |
10993 | if (!fuse_default_permissions) { | |
7c673cae FG |
10994 | int res = may_setattr(in, stx, mask, perms); |
10995 | if (res < 0) | |
10996 | return res; | |
10997 | } | |
10998 | ||
10999 | mask &= ~(CEPH_SETATTR_MTIME_NOW | CEPH_SETATTR_ATIME_NOW); | |
11000 | ||
11001 | return __setattrx(in, stx, mask, perms, inp); | |
11002 | } | |
11003 | ||
11004 | int Client::ll_setattrx(Inode *in, struct ceph_statx *stx, int mask, | |
11005 | const UserPerm& perms) | |
11006 | { | |
11fdf7f2 | 11007 | std::lock_guard lock(client_lock); |
181888fb FG |
11008 | |
11009 | if (unmounting) | |
11010 | return -ENOTCONN; | |
11011 | ||
7c673cae FG |
11012 | InodeRef target(in); |
11013 | int res = _ll_setattrx(in, stx, mask, perms, &target); | |
11014 | if (res == 0) { | |
11fdf7f2 | 11015 | ceph_assert(in == target.get()); |
7c673cae FG |
11016 | fill_statx(in, in->caps_issued(), stx); |
11017 | } | |
11018 | ||
11fdf7f2 | 11019 | ldout(cct, 3) << __func__ << " " << _get_vino(in) << " = " << res << dendl; |
7c673cae FG |
11020 | return res; |
11021 | } | |
11022 | ||
11023 | int Client::ll_setattr(Inode *in, struct stat *attr, int mask, | |
11024 | const UserPerm& perms) | |
11025 | { | |
11026 | struct ceph_statx stx; | |
11027 | stat_to_statx(attr, &stx); | |
11028 | ||
11fdf7f2 | 11029 | std::lock_guard lock(client_lock); |
181888fb FG |
11030 | |
11031 | if (unmounting) | |
11032 | return -ENOTCONN; | |
11033 | ||
7c673cae FG |
11034 | InodeRef target(in); |
11035 | int res = _ll_setattrx(in, &stx, mask, perms, &target); | |
11036 | if (res == 0) { | |
11fdf7f2 | 11037 | ceph_assert(in == target.get()); |
7c673cae FG |
11038 | fill_stat(in, attr); |
11039 | } | |
11040 | ||
11fdf7f2 | 11041 | ldout(cct, 3) << __func__ << " " << _get_vino(in) << " = " << res << dendl; |
7c673cae FG |
11042 | return res; |
11043 | } | |
11044 | ||
11045 | ||
11046 | // ---------- | |
11047 | // xattrs | |
11048 | ||
11049 | int Client::getxattr(const char *path, const char *name, void *value, size_t size, | |
11050 | const UserPerm& perms) | |
11051 | { | |
11fdf7f2 | 11052 | std::lock_guard lock(client_lock); |
181888fb FG |
11053 | |
11054 | if (unmounting) | |
11055 | return -ENOTCONN; | |
11056 | ||
7c673cae FG |
11057 | InodeRef in; |
11058 | int r = Client::path_walk(path, &in, perms, true, CEPH_STAT_CAP_XATTR); | |
11059 | if (r < 0) | |
11060 | return r; | |
11061 | return _getxattr(in, name, value, size, perms); | |
11062 | } | |
11063 | ||
11064 | int Client::lgetxattr(const char *path, const char *name, void *value, size_t size, | |
11065 | const UserPerm& perms) | |
11066 | { | |
11fdf7f2 | 11067 | std::lock_guard lock(client_lock); |
181888fb FG |
11068 | |
11069 | if (unmounting) | |
11070 | return -ENOTCONN; | |
11071 | ||
7c673cae FG |
11072 | InodeRef in; |
11073 | int r = Client::path_walk(path, &in, perms, false, CEPH_STAT_CAP_XATTR); | |
11074 | if (r < 0) | |
11075 | return r; | |
11076 | return _getxattr(in, name, value, size, perms); | |
11077 | } | |
11078 | ||
11079 | int Client::fgetxattr(int fd, const char *name, void *value, size_t size, | |
11080 | const UserPerm& perms) | |
11081 | { | |
11fdf7f2 | 11082 | std::lock_guard lock(client_lock); |
181888fb FG |
11083 | |
11084 | if (unmounting) | |
11085 | return -ENOTCONN; | |
11086 | ||
7c673cae FG |
11087 | Fh *f = get_filehandle(fd); |
11088 | if (!f) | |
11089 | return -EBADF; | |
11090 | return _getxattr(f->inode, name, value, size, perms); | |
11091 | } | |
11092 | ||
11093 | int Client::listxattr(const char *path, char *list, size_t size, | |
11094 | const UserPerm& perms) | |
11095 | { | |
11fdf7f2 | 11096 | std::lock_guard lock(client_lock); |
181888fb FG |
11097 | |
11098 | if (unmounting) | |
11099 | return -ENOTCONN; | |
11100 | ||
7c673cae FG |
11101 | InodeRef in; |
11102 | int r = Client::path_walk(path, &in, perms, true, CEPH_STAT_CAP_XATTR); | |
11103 | if (r < 0) | |
11104 | return r; | |
11105 | return Client::_listxattr(in.get(), list, size, perms); | |
11106 | } | |
11107 | ||
11108 | int Client::llistxattr(const char *path, char *list, size_t size, | |
11109 | const UserPerm& perms) | |
11110 | { | |
11fdf7f2 | 11111 | std::lock_guard lock(client_lock); |
181888fb FG |
11112 | |
11113 | if (unmounting) | |
11114 | return -ENOTCONN; | |
11115 | ||
7c673cae FG |
11116 | InodeRef in; |
11117 | int r = Client::path_walk(path, &in, perms, false, CEPH_STAT_CAP_XATTR); | |
11118 | if (r < 0) | |
11119 | return r; | |
11120 | return Client::_listxattr(in.get(), list, size, perms); | |
11121 | } | |
11122 | ||
11123 | int Client::flistxattr(int fd, char *list, size_t size, const UserPerm& perms) | |
11124 | { | |
11fdf7f2 | 11125 | std::lock_guard lock(client_lock); |
181888fb FG |
11126 | |
11127 | if (unmounting) | |
11128 | return -ENOTCONN; | |
11129 | ||
7c673cae FG |
11130 | Fh *f = get_filehandle(fd); |
11131 | if (!f) | |
11132 | return -EBADF; | |
11133 | return Client::_listxattr(f->inode.get(), list, size, perms); | |
11134 | } | |
11135 | ||
11136 | int Client::removexattr(const char *path, const char *name, | |
11137 | const UserPerm& perms) | |
11138 | { | |
11fdf7f2 | 11139 | std::lock_guard lock(client_lock); |
181888fb FG |
11140 | |
11141 | if (unmounting) | |
11142 | return -ENOTCONN; | |
11143 | ||
7c673cae FG |
11144 | InodeRef in; |
11145 | int r = Client::path_walk(path, &in, perms, true); | |
11146 | if (r < 0) | |
11147 | return r; | |
11148 | return _removexattr(in, name, perms); | |
11149 | } | |
11150 | ||
11151 | int Client::lremovexattr(const char *path, const char *name, | |
11152 | const UserPerm& perms) | |
11153 | { | |
11fdf7f2 | 11154 | std::lock_guard lock(client_lock); |
181888fb FG |
11155 | |
11156 | if (unmounting) | |
11157 | return -ENOTCONN; | |
11158 | ||
7c673cae FG |
11159 | InodeRef in; |
11160 | int r = Client::path_walk(path, &in, perms, false); | |
11161 | if (r < 0) | |
11162 | return r; | |
11163 | return _removexattr(in, name, perms); | |
11164 | } | |
11165 | ||
11166 | int Client::fremovexattr(int fd, const char *name, const UserPerm& perms) | |
11167 | { | |
11fdf7f2 | 11168 | std::lock_guard lock(client_lock); |
181888fb FG |
11169 | |
11170 | if (unmounting) | |
11171 | return -ENOTCONN; | |
11172 | ||
7c673cae FG |
11173 | Fh *f = get_filehandle(fd); |
11174 | if (!f) | |
11175 | return -EBADF; | |
11176 | return _removexattr(f->inode, name, perms); | |
11177 | } | |
11178 | ||
11179 | int Client::setxattr(const char *path, const char *name, const void *value, | |
11180 | size_t size, int flags, const UserPerm& perms) | |
11181 | { | |
11182 | _setxattr_maybe_wait_for_osdmap(name, value, size); | |
11183 | ||
11fdf7f2 | 11184 | std::lock_guard lock(client_lock); |
181888fb FG |
11185 | |
11186 | if (unmounting) | |
11187 | return -ENOTCONN; | |
11188 | ||
7c673cae FG |
11189 | InodeRef in; |
11190 | int r = Client::path_walk(path, &in, perms, true); | |
11191 | if (r < 0) | |
11192 | return r; | |
11193 | return _setxattr(in, name, value, size, flags, perms); | |
11194 | } | |
11195 | ||
11196 | int Client::lsetxattr(const char *path, const char *name, const void *value, | |
11197 | size_t size, int flags, const UserPerm& perms) | |
11198 | { | |
11199 | _setxattr_maybe_wait_for_osdmap(name, value, size); | |
11200 | ||
11fdf7f2 | 11201 | std::lock_guard lock(client_lock); |
181888fb FG |
11202 | |
11203 | if (unmounting) | |
11204 | return -ENOTCONN; | |
11205 | ||
7c673cae FG |
11206 | InodeRef in; |
11207 | int r = Client::path_walk(path, &in, perms, false); | |
11208 | if (r < 0) | |
11209 | return r; | |
11210 | return _setxattr(in, name, value, size, flags, perms); | |
11211 | } | |
11212 | ||
11213 | int Client::fsetxattr(int fd, const char *name, const void *value, size_t size, | |
11214 | int flags, const UserPerm& perms) | |
11215 | { | |
11216 | _setxattr_maybe_wait_for_osdmap(name, value, size); | |
11217 | ||
11fdf7f2 | 11218 | std::lock_guard lock(client_lock); |
181888fb FG |
11219 | |
11220 | if (unmounting) | |
11221 | return -ENOTCONN; | |
11222 | ||
7c673cae FG |
11223 | Fh *f = get_filehandle(fd); |
11224 | if (!f) | |
11225 | return -EBADF; | |
11226 | return _setxattr(f->inode, name, value, size, flags, perms); | |
11227 | } | |
11228 | ||
11229 | int Client::_getxattr(Inode *in, const char *name, void *value, size_t size, | |
11230 | const UserPerm& perms) | |
11231 | { | |
11232 | int r; | |
11233 | ||
11234 | const VXattr *vxattr = _match_vxattr(in, name); | |
11235 | if (vxattr) { | |
11236 | r = -ENODATA; | |
11237 | ||
11238 | // Do a force getattr to get the latest quota before returning | |
11239 | // a value to userspace. | |
28e407b8 AA |
11240 | int flags = 0; |
11241 | if (vxattr->flags & VXATTR_RSTAT) { | |
11242 | flags |= CEPH_STAT_RSTAT; | |
11243 | } | |
11244 | r = _getattr(in, flags, perms, true); | |
7c673cae FG |
11245 | if (r != 0) { |
11246 | // Error from getattr! | |
11247 | return r; | |
11248 | } | |
11249 | ||
11250 | // call pointer-to-member function | |
11251 | char buf[256]; | |
11252 | if (!(vxattr->exists_cb && !(this->*(vxattr->exists_cb))(in))) { | |
11253 | r = (this->*(vxattr->getxattr_cb))(in, buf, sizeof(buf)); | |
11254 | } else { | |
11255 | r = -ENODATA; | |
11256 | } | |
11257 | ||
11258 | if (size != 0) { | |
11259 | if (r > (int)size) { | |
11260 | r = -ERANGE; | |
11261 | } else if (r > 0) { | |
11262 | memcpy(value, buf, r); | |
11263 | } | |
11264 | } | |
11265 | goto out; | |
11266 | } | |
11267 | ||
11268 | if (acl_type == NO_ACL && !strncmp(name, "system.", 7)) { | |
11269 | r = -EOPNOTSUPP; | |
11270 | goto out; | |
11271 | } | |
11272 | ||
11273 | r = _getattr(in, CEPH_STAT_CAP_XATTR, perms, in->xattr_version == 0); | |
11274 | if (r == 0) { | |
11275 | string n(name); | |
11276 | r = -ENODATA; | |
11277 | if (in->xattrs.count(n)) { | |
11278 | r = in->xattrs[n].length(); | |
11279 | if (r > 0 && size != 0) { | |
11280 | if (size >= (unsigned)r) | |
11281 | memcpy(value, in->xattrs[n].c_str(), r); | |
11282 | else | |
11283 | r = -ERANGE; | |
11284 | } | |
11285 | } | |
11286 | } | |
11287 | out: | |
1adf2230 | 11288 | ldout(cct, 8) << "_getxattr(" << in->ino << ", \"" << name << "\", " << size << ") = " << r << dendl; |
7c673cae FG |
11289 | return r; |
11290 | } | |
11291 | ||
11292 | int Client::_getxattr(InodeRef &in, const char *name, void *value, size_t size, | |
11293 | const UserPerm& perms) | |
11294 | { | |
11295 | if (cct->_conf->client_permissions) { | |
11296 | int r = xattr_permission(in.get(), name, MAY_READ, perms); | |
11297 | if (r < 0) | |
11298 | return r; | |
11299 | } | |
11300 | return _getxattr(in.get(), name, value, size, perms); | |
11301 | } | |
11302 | ||
11303 | int Client::ll_getxattr(Inode *in, const char *name, void *value, | |
11304 | size_t size, const UserPerm& perms) | |
11305 | { | |
11fdf7f2 | 11306 | std::lock_guard lock(client_lock); |
7c673cae | 11307 | |
181888fb FG |
11308 | if (unmounting) |
11309 | return -ENOTCONN; | |
11310 | ||
7c673cae FG |
11311 | vinodeno_t vino = _get_vino(in); |
11312 | ||
11fdf7f2 TL |
11313 | ldout(cct, 3) << __func__ << " " << vino << " " << name << " size " << size << dendl; |
11314 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
11315 | tout(cct) << vino.ino.val << std::endl; |
11316 | tout(cct) << name << std::endl; | |
11317 | ||
11fdf7f2 TL |
11318 | auto fuse_default_permissions = cct->_conf.get_val<bool>( |
11319 | "fuse_default_permissions"); | |
11320 | if (!fuse_default_permissions) { | |
7c673cae FG |
11321 | int r = xattr_permission(in, name, MAY_READ, perms); |
11322 | if (r < 0) | |
11323 | return r; | |
11324 | } | |
11325 | ||
11326 | return _getxattr(in, name, value, size, perms); | |
11327 | } | |
11328 | ||
11329 | int Client::_listxattr(Inode *in, char *name, size_t size, | |
11330 | const UserPerm& perms) | |
11331 | { | |
81eedcae | 11332 | bool len_only = (size == 0); |
7c673cae | 11333 | int r = _getattr(in, CEPH_STAT_CAP_XATTR, perms, in->xattr_version == 0); |
81eedcae TL |
11334 | if (r != 0) { |
11335 | goto out; | |
11336 | } | |
7c673cae | 11337 | |
81eedcae TL |
11338 | r = 0; |
11339 | for (const auto& p : in->xattrs) { | |
11340 | size_t this_len = p.first.length() + 1; | |
11341 | r += this_len; | |
11342 | if (len_only) | |
11343 | continue; | |
7c673cae | 11344 | |
81eedcae TL |
11345 | if (this_len > size) { |
11346 | r = -ERANGE; | |
11347 | goto out; | |
11348 | } | |
11349 | ||
11350 | memcpy(name, p.first.c_str(), this_len); | |
11351 | name += this_len; | |
11352 | size -= this_len; | |
11353 | } | |
11354 | ||
11355 | const VXattr *vxattr; | |
11356 | for (vxattr = _get_vxattrs(in); vxattr && !vxattr->name.empty(); vxattr++) { | |
11357 | if (vxattr->hidden) | |
11358 | continue; | |
11359 | // call pointer-to-member function | |
11360 | if (vxattr->exists_cb && !(this->*(vxattr->exists_cb))(in)) | |
11361 | continue; | |
11362 | ||
11363 | size_t this_len = vxattr->name.length() + 1; | |
11364 | r += this_len; | |
11365 | if (len_only) | |
11366 | continue; | |
11367 | ||
11368 | if (this_len > size) { | |
11369 | r = -ERANGE; | |
11370 | goto out; | |
7c673cae | 11371 | } |
81eedcae TL |
11372 | |
11373 | memcpy(name, vxattr->name.c_str(), this_len); | |
11374 | name += this_len; | |
11375 | size -= this_len; | |
7c673cae | 11376 | } |
81eedcae | 11377 | out: |
11fdf7f2 | 11378 | ldout(cct, 8) << __func__ << "(" << in->ino << ", " << size << ") = " << r << dendl; |
7c673cae FG |
11379 | return r; |
11380 | } | |
11381 | ||
11382 | int Client::ll_listxattr(Inode *in, char *names, size_t size, | |
11383 | const UserPerm& perms) | |
11384 | { | |
11fdf7f2 | 11385 | std::lock_guard lock(client_lock); |
7c673cae | 11386 | |
181888fb FG |
11387 | if (unmounting) |
11388 | return -ENOTCONN; | |
11389 | ||
7c673cae FG |
11390 | vinodeno_t vino = _get_vino(in); |
11391 | ||
11fdf7f2 TL |
11392 | ldout(cct, 3) << __func__ << " " << vino << " size " << size << dendl; |
11393 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
11394 | tout(cct) << vino.ino.val << std::endl; |
11395 | tout(cct) << size << std::endl; | |
11396 | ||
11397 | return _listxattr(in, names, size, perms); | |
11398 | } | |
11399 | ||
11400 | int Client::_do_setxattr(Inode *in, const char *name, const void *value, | |
11401 | size_t size, int flags, const UserPerm& perms) | |
11402 | { | |
11403 | ||
11404 | int xattr_flags = 0; | |
11405 | if (!value) | |
11406 | xattr_flags |= CEPH_XATTR_REMOVE; | |
11407 | if (flags & XATTR_CREATE) | |
11408 | xattr_flags |= CEPH_XATTR_CREATE; | |
11409 | if (flags & XATTR_REPLACE) | |
11410 | xattr_flags |= CEPH_XATTR_REPLACE; | |
11411 | ||
11412 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_SETXATTR); | |
11413 | filepath path; | |
11414 | in->make_nosnap_relative_path(path); | |
11415 | req->set_filepath(path); | |
11416 | req->set_string2(name); | |
11417 | req->set_inode(in); | |
11418 | req->head.args.setxattr.flags = xattr_flags; | |
11419 | ||
11420 | bufferlist bl; | |
11fdf7f2 | 11421 | assert (value || size == 0); |
7c673cae FG |
11422 | bl.append((const char*)value, size); |
11423 | req->set_data(bl); | |
11424 | ||
11425 | int res = make_request(req, perms); | |
11426 | ||
11427 | trim_cache(); | |
11fdf7f2 | 11428 | ldout(cct, 3) << __func__ << "(" << in->ino << ", \"" << name << "\") = " << |
7c673cae FG |
11429 | res << dendl; |
11430 | return res; | |
11431 | } | |
11432 | ||
11433 | int Client::_setxattr(Inode *in, const char *name, const void *value, | |
11434 | size_t size, int flags, const UserPerm& perms) | |
11435 | { | |
11436 | if (in->snapid != CEPH_NOSNAP) { | |
11437 | return -EROFS; | |
11438 | } | |
11439 | ||
11440 | bool posix_acl_xattr = false; | |
11441 | if (acl_type == POSIX_ACL) | |
11442 | posix_acl_xattr = !strncmp(name, "system.", 7); | |
11443 | ||
11444 | if (strncmp(name, "user.", 5) && | |
11445 | strncmp(name, "security.", 9) && | |
11446 | strncmp(name, "trusted.", 8) && | |
11447 | strncmp(name, "ceph.", 5) && | |
11448 | !posix_acl_xattr) | |
11449 | return -EOPNOTSUPP; | |
11450 | ||
11fdf7f2 TL |
11451 | bool check_realm = false; |
11452 | ||
7c673cae FG |
11453 | if (posix_acl_xattr) { |
11454 | if (!strcmp(name, ACL_EA_ACCESS)) { | |
11455 | mode_t new_mode = in->mode; | |
11456 | if (value) { | |
11457 | int ret = posix_acl_equiv_mode(value, size, &new_mode); | |
11458 | if (ret < 0) | |
11459 | return ret; | |
11460 | if (ret == 0) { | |
11461 | value = NULL; | |
11462 | size = 0; | |
11463 | } | |
11464 | if (new_mode != in->mode) { | |
11465 | struct ceph_statx stx; | |
11466 | stx.stx_mode = new_mode; | |
11467 | ret = _do_setattr(in, &stx, CEPH_SETATTR_MODE, perms, NULL); | |
11468 | if (ret < 0) | |
11469 | return ret; | |
11470 | } | |
11471 | } | |
11472 | } else if (!strcmp(name, ACL_EA_DEFAULT)) { | |
11473 | if (value) { | |
11474 | if (!S_ISDIR(in->mode)) | |
11475 | return -EACCES; | |
11476 | int ret = posix_acl_check(value, size); | |
11477 | if (ret < 0) | |
11478 | return -EINVAL; | |
11479 | if (ret == 0) { | |
11480 | value = NULL; | |
11481 | size = 0; | |
11482 | } | |
11483 | } | |
11484 | } else { | |
11485 | return -EOPNOTSUPP; | |
11486 | } | |
11487 | } else { | |
11488 | const VXattr *vxattr = _match_vxattr(in, name); | |
11fdf7f2 TL |
11489 | if (vxattr) { |
11490 | if (vxattr->readonly) | |
11491 | return -EOPNOTSUPP; | |
11492 | if (vxattr->name.compare(0, 10, "ceph.quota") == 0 && value) | |
11493 | check_realm = true; | |
11494 | } | |
7c673cae FG |
11495 | } |
11496 | ||
11fdf7f2 TL |
11497 | int ret = _do_setxattr(in, name, value, size, flags, perms); |
11498 | if (ret >= 0 && check_realm) { | |
11499 | // check if snaprealm was created for quota inode | |
11500 | if (in->quota.is_enable() && | |
11501 | !(in->snaprealm && in->snaprealm->ino == in->ino)) | |
11502 | ret = -EOPNOTSUPP; | |
11503 | } | |
11504 | ||
11505 | return ret; | |
7c673cae FG |
11506 | } |
11507 | ||
11508 | int Client::_setxattr(InodeRef &in, const char *name, const void *value, | |
11509 | size_t size, int flags, const UserPerm& perms) | |
11510 | { | |
11511 | if (cct->_conf->client_permissions) { | |
11512 | int r = xattr_permission(in.get(), name, MAY_WRITE, perms); | |
11513 | if (r < 0) | |
11514 | return r; | |
11515 | } | |
11516 | return _setxattr(in.get(), name, value, size, flags, perms); | |
11517 | } | |
11518 | ||
11519 | int Client::_setxattr_check_data_pool(string& name, string& value, const OSDMap *osdmap) | |
11520 | { | |
11521 | string tmp; | |
11522 | if (name == "layout") { | |
11523 | string::iterator begin = value.begin(); | |
11524 | string::iterator end = value.end(); | |
11525 | keys_and_values<string::iterator> p; // create instance of parser | |
11526 | std::map<string, string> m; // map to receive results | |
11527 | if (!qi::parse(begin, end, p, m)) { // returns true if successful | |
11528 | return -EINVAL; | |
11529 | } | |
11530 | if (begin != end) | |
11531 | return -EINVAL; | |
11532 | for (map<string,string>::iterator q = m.begin(); q != m.end(); ++q) { | |
11533 | if (q->first == "pool") { | |
11534 | tmp = q->second; | |
11535 | break; | |
11536 | } | |
11537 | } | |
11538 | } else if (name == "layout.pool") { | |
11539 | tmp = value; | |
11540 | } | |
11541 | ||
11542 | if (tmp.length()) { | |
11543 | int64_t pool; | |
11544 | try { | |
11545 | pool = boost::lexical_cast<unsigned>(tmp); | |
11546 | if (!osdmap->have_pg_pool(pool)) | |
11547 | return -ENOENT; | |
11548 | } catch (boost::bad_lexical_cast const&) { | |
11549 | pool = osdmap->lookup_pg_pool_name(tmp); | |
11550 | if (pool < 0) { | |
11551 | return -ENOENT; | |
11552 | } | |
11553 | } | |
11554 | } | |
11555 | ||
11556 | return 0; | |
11557 | } | |
11558 | ||
11559 | void Client::_setxattr_maybe_wait_for_osdmap(const char *name, const void *value, size_t size) | |
11560 | { | |
11561 | // For setting pool of layout, MetaRequest need osdmap epoch. | |
11562 | // There is a race which create a new data pool but client and mds both don't have. | |
11563 | // Make client got the latest osdmap which make mds quickly judge whether get newer osdmap. | |
11564 | if (strcmp(name, "ceph.file.layout.pool") == 0 || strcmp(name, "ceph.dir.layout.pool") == 0 || | |
11565 | strcmp(name, "ceph.file.layout") == 0 || strcmp(name, "ceph.dir.layout") == 0) { | |
11566 | string rest(strstr(name, "layout")); | |
11567 | string v((const char*)value, size); | |
11568 | int r = objecter->with_osdmap([&](const OSDMap& o) { | |
11569 | return _setxattr_check_data_pool(rest, v, &o); | |
11570 | }); | |
11571 | ||
11572 | if (r == -ENOENT) { | |
11573 | C_SaferCond ctx; | |
11574 | objecter->wait_for_latest_osdmap(&ctx); | |
11575 | ctx.wait(); | |
11576 | } | |
11577 | } | |
11578 | } | |
11579 | ||
11580 | int Client::ll_setxattr(Inode *in, const char *name, const void *value, | |
11581 | size_t size, int flags, const UserPerm& perms) | |
11582 | { | |
11583 | _setxattr_maybe_wait_for_osdmap(name, value, size); | |
11584 | ||
11fdf7f2 | 11585 | std::lock_guard lock(client_lock); |
7c673cae | 11586 | |
181888fb FG |
11587 | if (unmounting) |
11588 | return -ENOTCONN; | |
11589 | ||
7c673cae FG |
11590 | vinodeno_t vino = _get_vino(in); |
11591 | ||
11fdf7f2 TL |
11592 | ldout(cct, 3) << __func__ << " " << vino << " " << name << " size " << size << dendl; |
11593 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
11594 | tout(cct) << vino.ino.val << std::endl; |
11595 | tout(cct) << name << std::endl; | |
11596 | ||
11fdf7f2 TL |
11597 | auto fuse_default_permissions = cct->_conf.get_val<bool>( |
11598 | "fuse_default_permissions"); | |
11599 | if (!fuse_default_permissions) { | |
7c673cae FG |
11600 | int r = xattr_permission(in, name, MAY_WRITE, perms); |
11601 | if (r < 0) | |
11602 | return r; | |
11603 | } | |
11604 | return _setxattr(in, name, value, size, flags, perms); | |
11605 | } | |
11606 | ||
11607 | int Client::_removexattr(Inode *in, const char *name, const UserPerm& perms) | |
11608 | { | |
11609 | if (in->snapid != CEPH_NOSNAP) { | |
11610 | return -EROFS; | |
11611 | } | |
11612 | ||
11613 | // same xattrs supported by kernel client | |
11614 | if (strncmp(name, "user.", 5) && | |
11615 | strncmp(name, "system.", 7) && | |
11616 | strncmp(name, "security.", 9) && | |
11617 | strncmp(name, "trusted.", 8) && | |
11618 | strncmp(name, "ceph.", 5)) | |
11619 | return -EOPNOTSUPP; | |
11620 | ||
11621 | const VXattr *vxattr = _match_vxattr(in, name); | |
11622 | if (vxattr && vxattr->readonly) | |
11623 | return -EOPNOTSUPP; | |
11624 | ||
11625 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_RMXATTR); | |
11626 | filepath path; | |
11627 | in->make_nosnap_relative_path(path); | |
11628 | req->set_filepath(path); | |
11629 | req->set_filepath2(name); | |
11630 | req->set_inode(in); | |
11631 | ||
11632 | int res = make_request(req, perms); | |
11633 | ||
11634 | trim_cache(); | |
1adf2230 | 11635 | ldout(cct, 8) << "_removexattr(" << in->ino << ", \"" << name << "\") = " << res << dendl; |
7c673cae FG |
11636 | return res; |
11637 | } | |
11638 | ||
11639 | int Client::_removexattr(InodeRef &in, const char *name, const UserPerm& perms) | |
11640 | { | |
11641 | if (cct->_conf->client_permissions) { | |
11642 | int r = xattr_permission(in.get(), name, MAY_WRITE, perms); | |
11643 | if (r < 0) | |
11644 | return r; | |
11645 | } | |
11646 | return _removexattr(in.get(), name, perms); | |
11647 | } | |
11648 | ||
11649 | int Client::ll_removexattr(Inode *in, const char *name, const UserPerm& perms) | |
11650 | { | |
11fdf7f2 | 11651 | std::lock_guard lock(client_lock); |
7c673cae | 11652 | |
181888fb FG |
11653 | if (unmounting) |
11654 | return -ENOTCONN; | |
11655 | ||
7c673cae FG |
11656 | vinodeno_t vino = _get_vino(in); |
11657 | ||
11658 | ldout(cct, 3) << "ll_removexattr " << vino << " " << name << dendl; | |
11659 | tout(cct) << "ll_removexattr" << std::endl; | |
11660 | tout(cct) << vino.ino.val << std::endl; | |
11661 | tout(cct) << name << std::endl; | |
11662 | ||
11fdf7f2 TL |
11663 | auto fuse_default_permissions = cct->_conf.get_val<bool>( |
11664 | "fuse_default_permissions"); | |
11665 | if (!fuse_default_permissions) { | |
7c673cae FG |
11666 | int r = xattr_permission(in, name, MAY_WRITE, perms); |
11667 | if (r < 0) | |
11668 | return r; | |
11669 | } | |
11670 | ||
11671 | return _removexattr(in, name, perms); | |
11672 | } | |
11673 | ||
11674 | bool Client::_vxattrcb_quota_exists(Inode *in) | |
11675 | { | |
11fdf7f2 TL |
11676 | return in->quota.is_enable() && |
11677 | in->snaprealm && in->snaprealm->ino == in->ino; | |
7c673cae FG |
11678 | } |
11679 | size_t Client::_vxattrcb_quota(Inode *in, char *val, size_t size) | |
11680 | { | |
11681 | return snprintf(val, size, | |
11682 | "max_bytes=%lld max_files=%lld", | |
11683 | (long long int)in->quota.max_bytes, | |
11684 | (long long int)in->quota.max_files); | |
11685 | } | |
11686 | size_t Client::_vxattrcb_quota_max_bytes(Inode *in, char *val, size_t size) | |
11687 | { | |
11688 | return snprintf(val, size, "%lld", (long long int)in->quota.max_bytes); | |
11689 | } | |
11690 | size_t Client::_vxattrcb_quota_max_files(Inode *in, char *val, size_t size) | |
11691 | { | |
11692 | return snprintf(val, size, "%lld", (long long int)in->quota.max_files); | |
11693 | } | |
11694 | ||
11695 | bool Client::_vxattrcb_layout_exists(Inode *in) | |
11696 | { | |
11697 | return in->layout != file_layout_t(); | |
11698 | } | |
11699 | size_t Client::_vxattrcb_layout(Inode *in, char *val, size_t size) | |
11700 | { | |
11701 | int r = snprintf(val, size, | |
11fdf7f2 | 11702 | "stripe_unit=%llu stripe_count=%llu object_size=%llu pool=", |
7c673cae FG |
11703 | (unsigned long long)in->layout.stripe_unit, |
11704 | (unsigned long long)in->layout.stripe_count, | |
11705 | (unsigned long long)in->layout.object_size); | |
11706 | objecter->with_osdmap([&](const OSDMap& o) { | |
11707 | if (o.have_pg_pool(in->layout.pool_id)) | |
11708 | r += snprintf(val + r, size - r, "%s", | |
11709 | o.get_pool_name(in->layout.pool_id).c_str()); | |
11710 | else | |
11711 | r += snprintf(val + r, size - r, "%" PRIu64, | |
11712 | (uint64_t)in->layout.pool_id); | |
11713 | }); | |
11714 | if (in->layout.pool_ns.length()) | |
11715 | r += snprintf(val + r, size - r, " pool_namespace=%s", | |
11716 | in->layout.pool_ns.c_str()); | |
11717 | return r; | |
11718 | } | |
11719 | size_t Client::_vxattrcb_layout_stripe_unit(Inode *in, char *val, size_t size) | |
11720 | { | |
11fdf7f2 | 11721 | return snprintf(val, size, "%llu", (unsigned long long)in->layout.stripe_unit); |
7c673cae FG |
11722 | } |
11723 | size_t Client::_vxattrcb_layout_stripe_count(Inode *in, char *val, size_t size) | |
11724 | { | |
11fdf7f2 | 11725 | return snprintf(val, size, "%llu", (unsigned long long)in->layout.stripe_count); |
7c673cae FG |
11726 | } |
11727 | size_t Client::_vxattrcb_layout_object_size(Inode *in, char *val, size_t size) | |
11728 | { | |
11fdf7f2 | 11729 | return snprintf(val, size, "%llu", (unsigned long long)in->layout.object_size); |
7c673cae FG |
11730 | } |
11731 | size_t Client::_vxattrcb_layout_pool(Inode *in, char *val, size_t size) | |
11732 | { | |
11733 | size_t r; | |
11734 | objecter->with_osdmap([&](const OSDMap& o) { | |
11735 | if (o.have_pg_pool(in->layout.pool_id)) | |
11736 | r = snprintf(val, size, "%s", o.get_pool_name( | |
11737 | in->layout.pool_id).c_str()); | |
11738 | else | |
11739 | r = snprintf(val, size, "%" PRIu64, (uint64_t)in->layout.pool_id); | |
11740 | }); | |
11741 | return r; | |
11742 | } | |
11743 | size_t Client::_vxattrcb_layout_pool_namespace(Inode *in, char *val, size_t size) | |
11744 | { | |
11745 | return snprintf(val, size, "%s", in->layout.pool_ns.c_str()); | |
11746 | } | |
11747 | size_t Client::_vxattrcb_dir_entries(Inode *in, char *val, size_t size) | |
11748 | { | |
11fdf7f2 | 11749 | return snprintf(val, size, "%llu", (unsigned long long)(in->dirstat.nfiles + in->dirstat.nsubdirs)); |
7c673cae FG |
11750 | } |
11751 | size_t Client::_vxattrcb_dir_files(Inode *in, char *val, size_t size) | |
11752 | { | |
11fdf7f2 | 11753 | return snprintf(val, size, "%llu", (unsigned long long)in->dirstat.nfiles); |
7c673cae FG |
11754 | } |
11755 | size_t Client::_vxattrcb_dir_subdirs(Inode *in, char *val, size_t size) | |
11756 | { | |
11fdf7f2 | 11757 | return snprintf(val, size, "%llu", (unsigned long long)in->dirstat.nsubdirs); |
7c673cae FG |
11758 | } |
11759 | size_t Client::_vxattrcb_dir_rentries(Inode *in, char *val, size_t size) | |
11760 | { | |
11fdf7f2 | 11761 | return snprintf(val, size, "%llu", (unsigned long long)(in->rstat.rfiles + in->rstat.rsubdirs)); |
7c673cae FG |
11762 | } |
11763 | size_t Client::_vxattrcb_dir_rfiles(Inode *in, char *val, size_t size) | |
11764 | { | |
11fdf7f2 | 11765 | return snprintf(val, size, "%llu", (unsigned long long)in->rstat.rfiles); |
7c673cae FG |
11766 | } |
11767 | size_t Client::_vxattrcb_dir_rsubdirs(Inode *in, char *val, size_t size) | |
11768 | { | |
11fdf7f2 | 11769 | return snprintf(val, size, "%llu", (unsigned long long)in->rstat.rsubdirs); |
7c673cae FG |
11770 | } |
11771 | size_t Client::_vxattrcb_dir_rbytes(Inode *in, char *val, size_t size) | |
11772 | { | |
11fdf7f2 | 11773 | return snprintf(val, size, "%llu", (unsigned long long)in->rstat.rbytes); |
7c673cae FG |
11774 | } |
11775 | size_t Client::_vxattrcb_dir_rctime(Inode *in, char *val, size_t size) | |
11776 | { | |
81eedcae | 11777 | return snprintf(val, size, "%ld.%09ld", (long)in->rstat.rctime.sec(), |
7c673cae FG |
11778 | (long)in->rstat.rctime.nsec()); |
11779 | } | |
11fdf7f2 TL |
11780 | bool Client::_vxattrcb_dir_pin_exists(Inode *in) |
11781 | { | |
11782 | return in->dir_pin != -ENODATA; | |
11783 | } | |
11784 | size_t Client::_vxattrcb_dir_pin(Inode *in, char *val, size_t size) | |
11785 | { | |
11786 | return snprintf(val, size, "%ld", (long)in->dir_pin); | |
11787 | } | |
7c673cae | 11788 | |
81eedcae TL |
11789 | bool Client::_vxattrcb_snap_btime_exists(Inode *in) |
11790 | { | |
11791 | return !in->snap_btime.is_zero(); | |
11792 | } | |
11793 | ||
11794 | size_t Client::_vxattrcb_snap_btime(Inode *in, char *val, size_t size) | |
11795 | { | |
11796 | return snprintf(val, size, "%llu.%09lu", | |
11797 | (long long unsigned)in->snap_btime.sec(), | |
11798 | (long unsigned)in->snap_btime.nsec()); | |
11799 | } | |
11800 | ||
7c673cae FG |
11801 | #define CEPH_XATTR_NAME(_type, _name) "ceph." #_type "." #_name |
11802 | #define CEPH_XATTR_NAME2(_type, _name, _name2) "ceph." #_type "." #_name "." #_name2 | |
11803 | ||
11804 | #define XATTR_NAME_CEPH(_type, _name) \ | |
11805 | { \ | |
11806 | name: CEPH_XATTR_NAME(_type, _name), \ | |
11807 | getxattr_cb: &Client::_vxattrcb_ ## _type ## _ ## _name, \ | |
11808 | readonly: true, \ | |
11809 | hidden: false, \ | |
11810 | exists_cb: NULL, \ | |
28e407b8 AA |
11811 | flags: 0, \ |
11812 | } | |
11813 | #define XATTR_NAME_CEPH2(_type, _name, _flags) \ | |
11814 | { \ | |
11815 | name: CEPH_XATTR_NAME(_type, _name), \ | |
11816 | getxattr_cb: &Client::_vxattrcb_ ## _type ## _ ## _name, \ | |
11817 | readonly: true, \ | |
11818 | hidden: false, \ | |
11819 | exists_cb: NULL, \ | |
11820 | flags: _flags, \ | |
7c673cae FG |
11821 | } |
11822 | #define XATTR_LAYOUT_FIELD(_type, _name, _field) \ | |
11823 | { \ | |
11824 | name: CEPH_XATTR_NAME2(_type, _name, _field), \ | |
11825 | getxattr_cb: &Client::_vxattrcb_ ## _name ## _ ## _field, \ | |
11826 | readonly: false, \ | |
11827 | hidden: true, \ | |
11828 | exists_cb: &Client::_vxattrcb_layout_exists, \ | |
28e407b8 | 11829 | flags: 0, \ |
7c673cae FG |
11830 | } |
11831 | #define XATTR_QUOTA_FIELD(_type, _name) \ | |
11832 | { \ | |
11833 | name: CEPH_XATTR_NAME(_type, _name), \ | |
11834 | getxattr_cb: &Client::_vxattrcb_ ## _type ## _ ## _name, \ | |
11835 | readonly: false, \ | |
11836 | hidden: true, \ | |
11837 | exists_cb: &Client::_vxattrcb_quota_exists, \ | |
28e407b8 | 11838 | flags: 0, \ |
7c673cae FG |
11839 | } |
11840 | ||
11841 | const Client::VXattr Client::_dir_vxattrs[] = { | |
11842 | { | |
11843 | name: "ceph.dir.layout", | |
11844 | getxattr_cb: &Client::_vxattrcb_layout, | |
11845 | readonly: false, | |
11846 | hidden: true, | |
11847 | exists_cb: &Client::_vxattrcb_layout_exists, | |
28e407b8 | 11848 | flags: 0, |
7c673cae FG |
11849 | }, |
11850 | XATTR_LAYOUT_FIELD(dir, layout, stripe_unit), | |
11851 | XATTR_LAYOUT_FIELD(dir, layout, stripe_count), | |
11852 | XATTR_LAYOUT_FIELD(dir, layout, object_size), | |
11853 | XATTR_LAYOUT_FIELD(dir, layout, pool), | |
11854 | XATTR_LAYOUT_FIELD(dir, layout, pool_namespace), | |
11855 | XATTR_NAME_CEPH(dir, entries), | |
11856 | XATTR_NAME_CEPH(dir, files), | |
11857 | XATTR_NAME_CEPH(dir, subdirs), | |
28e407b8 AA |
11858 | XATTR_NAME_CEPH2(dir, rentries, VXATTR_RSTAT), |
11859 | XATTR_NAME_CEPH2(dir, rfiles, VXATTR_RSTAT), | |
11860 | XATTR_NAME_CEPH2(dir, rsubdirs, VXATTR_RSTAT), | |
11861 | XATTR_NAME_CEPH2(dir, rbytes, VXATTR_RSTAT), | |
11862 | XATTR_NAME_CEPH2(dir, rctime, VXATTR_RSTAT), | |
7c673cae FG |
11863 | { |
11864 | name: "ceph.quota", | |
11865 | getxattr_cb: &Client::_vxattrcb_quota, | |
11866 | readonly: false, | |
11867 | hidden: true, | |
11868 | exists_cb: &Client::_vxattrcb_quota_exists, | |
28e407b8 | 11869 | flags: 0, |
7c673cae FG |
11870 | }, |
11871 | XATTR_QUOTA_FIELD(quota, max_bytes), | |
11872 | XATTR_QUOTA_FIELD(quota, max_files), | |
11fdf7f2 TL |
11873 | { |
11874 | name: "ceph.dir.pin", | |
11875 | getxattr_cb: &Client::_vxattrcb_dir_pin, | |
11876 | readonly: false, | |
11877 | hidden: true, | |
11878 | exists_cb: &Client::_vxattrcb_dir_pin_exists, | |
11879 | flags: 0, | |
11880 | }, | |
81eedcae TL |
11881 | { |
11882 | name: "ceph.snap.btime", | |
11883 | getxattr_cb: &Client::_vxattrcb_snap_btime, | |
11884 | readonly: true, | |
11885 | hidden: false, | |
11886 | exists_cb: &Client::_vxattrcb_snap_btime_exists, | |
11887 | flags: 0, | |
11888 | }, | |
7c673cae FG |
11889 | { name: "" } /* Required table terminator */ |
11890 | }; | |
11891 | ||
11892 | const Client::VXattr Client::_file_vxattrs[] = { | |
11893 | { | |
11894 | name: "ceph.file.layout", | |
11895 | getxattr_cb: &Client::_vxattrcb_layout, | |
11896 | readonly: false, | |
11897 | hidden: true, | |
11898 | exists_cb: &Client::_vxattrcb_layout_exists, | |
28e407b8 | 11899 | flags: 0, |
7c673cae FG |
11900 | }, |
11901 | XATTR_LAYOUT_FIELD(file, layout, stripe_unit), | |
11902 | XATTR_LAYOUT_FIELD(file, layout, stripe_count), | |
11903 | XATTR_LAYOUT_FIELD(file, layout, object_size), | |
11904 | XATTR_LAYOUT_FIELD(file, layout, pool), | |
11905 | XATTR_LAYOUT_FIELD(file, layout, pool_namespace), | |
81eedcae TL |
11906 | { |
11907 | name: "ceph.snap.btime", | |
11908 | getxattr_cb: &Client::_vxattrcb_snap_btime, | |
11909 | readonly: true, | |
11910 | hidden: false, | |
11911 | exists_cb: &Client::_vxattrcb_snap_btime_exists, | |
11912 | flags: 0, | |
11913 | }, | |
7c673cae FG |
11914 | { name: "" } /* Required table terminator */ |
11915 | }; | |
11916 | ||
11917 | const Client::VXattr *Client::_get_vxattrs(Inode *in) | |
11918 | { | |
11919 | if (in->is_dir()) | |
11920 | return _dir_vxattrs; | |
11921 | else if (in->is_file()) | |
11922 | return _file_vxattrs; | |
11923 | return NULL; | |
11924 | } | |
11925 | ||
11926 | const Client::VXattr *Client::_match_vxattr(Inode *in, const char *name) | |
11927 | { | |
11928 | if (strncmp(name, "ceph.", 5) == 0) { | |
11929 | const VXattr *vxattr = _get_vxattrs(in); | |
11930 | if (vxattr) { | |
11931 | while (!vxattr->name.empty()) { | |
11932 | if (vxattr->name == name) | |
11933 | return vxattr; | |
11934 | vxattr++; | |
11935 | } | |
11936 | } | |
11937 | } | |
11938 | return NULL; | |
11939 | } | |
11940 | ||
7c673cae FG |
11941 | int Client::ll_readlink(Inode *in, char *buf, size_t buflen, const UserPerm& perms) |
11942 | { | |
11fdf7f2 | 11943 | std::lock_guard lock(client_lock); |
7c673cae | 11944 | |
181888fb FG |
11945 | if (unmounting) |
11946 | return -ENOTCONN; | |
11947 | ||
7c673cae FG |
11948 | vinodeno_t vino = _get_vino(in); |
11949 | ||
11950 | ldout(cct, 3) << "ll_readlink " << vino << dendl; | |
11951 | tout(cct) << "ll_readlink" << std::endl; | |
11952 | tout(cct) << vino.ino.val << std::endl; | |
11953 | ||
11fdf7f2 TL |
11954 | for (auto dn : in->dentries) { |
11955 | touch_dn(dn); | |
7c673cae FG |
11956 | } |
11957 | ||
11958 | int r = _readlink(in, buf, buflen); // FIXME: no permission checking! | |
11959 | ldout(cct, 3) << "ll_readlink " << vino << " = " << r << dendl; | |
11960 | return r; | |
11961 | } | |
11962 | ||
11963 | int Client::_mknod(Inode *dir, const char *name, mode_t mode, dev_t rdev, | |
11964 | const UserPerm& perms, InodeRef *inp) | |
11965 | { | |
1adf2230 | 11966 | ldout(cct, 8) << "_mknod(" << dir->ino << " " << name << ", 0" << oct |
7c673cae FG |
11967 | << mode << dec << ", " << rdev << ", uid " << perms.uid() |
11968 | << ", gid " << perms.gid() << ")" << dendl; | |
11969 | ||
11970 | if (strlen(name) > NAME_MAX) | |
11971 | return -ENAMETOOLONG; | |
11972 | ||
11973 | if (dir->snapid != CEPH_NOSNAP) { | |
11974 | return -EROFS; | |
11975 | } | |
11976 | if (is_quota_files_exceeded(dir, perms)) { | |
11977 | return -EDQUOT; | |
11978 | } | |
11979 | ||
11980 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_MKNOD); | |
11981 | ||
11982 | filepath path; | |
11983 | dir->make_nosnap_relative_path(path); | |
11984 | path.push_dentry(name); | |
11985 | req->set_filepath(path); | |
11986 | req->set_inode(dir); | |
11987 | req->head.args.mknod.rdev = rdev; | |
11988 | req->dentry_drop = CEPH_CAP_FILE_SHARED; | |
11989 | req->dentry_unless = CEPH_CAP_FILE_EXCL; | |
11990 | ||
11991 | bufferlist xattrs_bl; | |
11992 | int res = _posix_acl_create(dir, &mode, xattrs_bl, perms); | |
11993 | if (res < 0) | |
11994 | goto fail; | |
11995 | req->head.args.mknod.mode = mode; | |
11996 | if (xattrs_bl.length() > 0) | |
11997 | req->set_data(xattrs_bl); | |
11998 | ||
11999 | Dentry *de; | |
12000 | res = get_or_create(dir, name, &de); | |
12001 | if (res < 0) | |
12002 | goto fail; | |
12003 | req->set_dentry(de); | |
12004 | ||
12005 | res = make_request(req, perms, inp); | |
12006 | ||
12007 | trim_cache(); | |
12008 | ||
1adf2230 | 12009 | ldout(cct, 8) << "mknod(" << path << ", 0" << oct << mode << dec << ") = " << res << dendl; |
7c673cae FG |
12010 | return res; |
12011 | ||
12012 | fail: | |
12013 | put_request(req); | |
12014 | return res; | |
12015 | } | |
12016 | ||
12017 | int Client::ll_mknod(Inode *parent, const char *name, mode_t mode, | |
12018 | dev_t rdev, struct stat *attr, Inode **out, | |
12019 | const UserPerm& perms) | |
12020 | { | |
11fdf7f2 | 12021 | std::lock_guard lock(client_lock); |
7c673cae | 12022 | |
181888fb FG |
12023 | if (unmounting) |
12024 | return -ENOTCONN; | |
12025 | ||
7c673cae FG |
12026 | vinodeno_t vparent = _get_vino(parent); |
12027 | ||
12028 | ldout(cct, 3) << "ll_mknod " << vparent << " " << name << dendl; | |
12029 | tout(cct) << "ll_mknod" << std::endl; | |
12030 | tout(cct) << vparent.ino.val << std::endl; | |
12031 | tout(cct) << name << std::endl; | |
12032 | tout(cct) << mode << std::endl; | |
12033 | tout(cct) << rdev << std::endl; | |
12034 | ||
11fdf7f2 TL |
12035 | auto fuse_default_permissions = cct->_conf.get_val<bool>( |
12036 | "fuse_default_permissions"); | |
12037 | if (!fuse_default_permissions) { | |
7c673cae FG |
12038 | int r = may_create(parent, perms); |
12039 | if (r < 0) | |
12040 | return r; | |
12041 | } | |
12042 | ||
12043 | InodeRef in; | |
12044 | int r = _mknod(parent, name, mode, rdev, perms, &in); | |
12045 | if (r == 0) { | |
12046 | fill_stat(in, attr); | |
12047 | _ll_get(in.get()); | |
12048 | } | |
12049 | tout(cct) << attr->st_ino << std::endl; | |
12050 | ldout(cct, 3) << "ll_mknod " << vparent << " " << name | |
12051 | << " = " << r << " (" << hex << attr->st_ino << dec << ")" << dendl; | |
12052 | *out = in.get(); | |
12053 | return r; | |
12054 | } | |
12055 | ||
12056 | int Client::ll_mknodx(Inode *parent, const char *name, mode_t mode, | |
12057 | dev_t rdev, Inode **out, | |
12058 | struct ceph_statx *stx, unsigned want, unsigned flags, | |
12059 | const UserPerm& perms) | |
12060 | { | |
12061 | unsigned caps = statx_to_mask(flags, want); | |
11fdf7f2 | 12062 | std::lock_guard lock(client_lock); |
7c673cae | 12063 | |
181888fb FG |
12064 | if (unmounting) |
12065 | return -ENOTCONN; | |
12066 | ||
7c673cae FG |
12067 | vinodeno_t vparent = _get_vino(parent); |
12068 | ||
12069 | ldout(cct, 3) << "ll_mknodx " << vparent << " " << name << dendl; | |
12070 | tout(cct) << "ll_mknodx" << std::endl; | |
12071 | tout(cct) << vparent.ino.val << std::endl; | |
12072 | tout(cct) << name << std::endl; | |
12073 | tout(cct) << mode << std::endl; | |
12074 | tout(cct) << rdev << std::endl; | |
12075 | ||
11fdf7f2 TL |
12076 | auto fuse_default_permissions = cct->_conf.get_val<bool>( |
12077 | "fuse_default_permissions"); | |
12078 | if (!fuse_default_permissions) { | |
7c673cae FG |
12079 | int r = may_create(parent, perms); |
12080 | if (r < 0) | |
12081 | return r; | |
12082 | } | |
12083 | ||
12084 | InodeRef in; | |
12085 | int r = _mknod(parent, name, mode, rdev, perms, &in); | |
12086 | if (r == 0) { | |
12087 | fill_statx(in, caps, stx); | |
12088 | _ll_get(in.get()); | |
12089 | } | |
12090 | tout(cct) << stx->stx_ino << std::endl; | |
12091 | ldout(cct, 3) << "ll_mknodx " << vparent << " " << name | |
12092 | << " = " << r << " (" << hex << stx->stx_ino << dec << ")" << dendl; | |
12093 | *out = in.get(); | |
12094 | return r; | |
12095 | } | |
12096 | ||
12097 | int Client::_create(Inode *dir, const char *name, int flags, mode_t mode, | |
12098 | InodeRef *inp, Fh **fhp, int stripe_unit, int stripe_count, | |
12099 | int object_size, const char *data_pool, bool *created, | |
12100 | const UserPerm& perms) | |
12101 | { | |
1adf2230 | 12102 | ldout(cct, 8) << "_create(" << dir->ino << " " << name << ", 0" << oct << |
7c673cae FG |
12103 | mode << dec << ")" << dendl; |
12104 | ||
12105 | if (strlen(name) > NAME_MAX) | |
12106 | return -ENAMETOOLONG; | |
12107 | if (dir->snapid != CEPH_NOSNAP) { | |
12108 | return -EROFS; | |
12109 | } | |
12110 | if (is_quota_files_exceeded(dir, perms)) { | |
12111 | return -EDQUOT; | |
12112 | } | |
12113 | ||
12114 | // use normalized flags to generate cmode | |
11fdf7f2 TL |
12115 | int cflags = ceph_flags_sys2wire(flags); |
12116 | if (cct->_conf.get_val<bool>("client_force_lazyio")) | |
12117 | cflags |= CEPH_O_LAZY; | |
12118 | ||
12119 | int cmode = ceph_flags_to_mode(cflags); | |
7c673cae FG |
12120 | |
12121 | int64_t pool_id = -1; | |
12122 | if (data_pool && *data_pool) { | |
12123 | pool_id = objecter->with_osdmap( | |
12124 | std::mem_fn(&OSDMap::lookup_pg_pool_name), data_pool); | |
12125 | if (pool_id < 0) | |
12126 | return -EINVAL; | |
12127 | if (pool_id > 0xffffffffll) | |
12128 | return -ERANGE; // bummer! | |
12129 | } | |
12130 | ||
12131 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_CREATE); | |
12132 | ||
12133 | filepath path; | |
12134 | dir->make_nosnap_relative_path(path); | |
12135 | path.push_dentry(name); | |
12136 | req->set_filepath(path); | |
12137 | req->set_inode(dir); | |
11fdf7f2 | 12138 | req->head.args.open.flags = cflags | CEPH_O_CREAT; |
7c673cae FG |
12139 | |
12140 | req->head.args.open.stripe_unit = stripe_unit; | |
12141 | req->head.args.open.stripe_count = stripe_count; | |
12142 | req->head.args.open.object_size = object_size; | |
12143 | if (cct->_conf->client_debug_getattr_caps) | |
12144 | req->head.args.open.mask = DEBUG_GETATTR_CAPS; | |
12145 | else | |
12146 | req->head.args.open.mask = 0; | |
12147 | req->head.args.open.pool = pool_id; | |
12148 | req->dentry_drop = CEPH_CAP_FILE_SHARED; | |
12149 | req->dentry_unless = CEPH_CAP_FILE_EXCL; | |
12150 | ||
12151 | mode |= S_IFREG; | |
12152 | bufferlist xattrs_bl; | |
12153 | int res = _posix_acl_create(dir, &mode, xattrs_bl, perms); | |
12154 | if (res < 0) | |
12155 | goto fail; | |
12156 | req->head.args.open.mode = mode; | |
12157 | if (xattrs_bl.length() > 0) | |
12158 | req->set_data(xattrs_bl); | |
12159 | ||
12160 | Dentry *de; | |
12161 | res = get_or_create(dir, name, &de); | |
12162 | if (res < 0) | |
12163 | goto fail; | |
12164 | req->set_dentry(de); | |
12165 | ||
12166 | res = make_request(req, perms, inp, created); | |
12167 | if (res < 0) { | |
12168 | goto reply_error; | |
12169 | } | |
12170 | ||
12171 | /* If the caller passed a value in fhp, do the open */ | |
12172 | if(fhp) { | |
12173 | (*inp)->get_open_ref(cmode); | |
12174 | *fhp = _create_fh(inp->get(), flags, cmode, perms); | |
12175 | } | |
12176 | ||
12177 | reply_error: | |
12178 | trim_cache(); | |
12179 | ||
1adf2230 | 12180 | ldout(cct, 8) << "create(" << path << ", 0" << oct << mode << dec |
7c673cae FG |
12181 | << " layout " << stripe_unit |
12182 | << ' ' << stripe_count | |
12183 | << ' ' << object_size | |
12184 | <<") = " << res << dendl; | |
12185 | return res; | |
12186 | ||
12187 | fail: | |
12188 | put_request(req); | |
12189 | return res; | |
12190 | } | |
12191 | ||
12192 | ||
12193 | int Client::_mkdir(Inode *dir, const char *name, mode_t mode, const UserPerm& perm, | |
12194 | InodeRef *inp) | |
12195 | { | |
1adf2230 | 12196 | ldout(cct, 8) << "_mkdir(" << dir->ino << " " << name << ", 0" << oct |
7c673cae FG |
12197 | << mode << dec << ", uid " << perm.uid() |
12198 | << ", gid " << perm.gid() << ")" << dendl; | |
12199 | ||
12200 | if (strlen(name) > NAME_MAX) | |
12201 | return -ENAMETOOLONG; | |
12202 | ||
12203 | if (dir->snapid != CEPH_NOSNAP && dir->snapid != CEPH_SNAPDIR) { | |
12204 | return -EROFS; | |
12205 | } | |
12206 | if (is_quota_files_exceeded(dir, perm)) { | |
12207 | return -EDQUOT; | |
12208 | } | |
12209 | MetaRequest *req = new MetaRequest(dir->snapid == CEPH_SNAPDIR ? | |
12210 | CEPH_MDS_OP_MKSNAP : CEPH_MDS_OP_MKDIR); | |
12211 | ||
12212 | filepath path; | |
12213 | dir->make_nosnap_relative_path(path); | |
12214 | path.push_dentry(name); | |
12215 | req->set_filepath(path); | |
12216 | req->set_inode(dir); | |
12217 | req->dentry_drop = CEPH_CAP_FILE_SHARED; | |
12218 | req->dentry_unless = CEPH_CAP_FILE_EXCL; | |
12219 | ||
12220 | mode |= S_IFDIR; | |
12221 | bufferlist xattrs_bl; | |
12222 | int res = _posix_acl_create(dir, &mode, xattrs_bl, perm); | |
12223 | if (res < 0) | |
12224 | goto fail; | |
12225 | req->head.args.mkdir.mode = mode; | |
12226 | if (xattrs_bl.length() > 0) | |
12227 | req->set_data(xattrs_bl); | |
12228 | ||
12229 | Dentry *de; | |
12230 | res = get_or_create(dir, name, &de); | |
12231 | if (res < 0) | |
12232 | goto fail; | |
12233 | req->set_dentry(de); | |
12234 | ||
12235 | ldout(cct, 10) << "_mkdir: making request" << dendl; | |
12236 | res = make_request(req, perm, inp); | |
12237 | ldout(cct, 10) << "_mkdir result is " << res << dendl; | |
12238 | ||
12239 | trim_cache(); | |
12240 | ||
1adf2230 | 12241 | ldout(cct, 8) << "_mkdir(" << path << ", 0" << oct << mode << dec << ") = " << res << dendl; |
7c673cae FG |
12242 | return res; |
12243 | ||
12244 | fail: | |
12245 | put_request(req); | |
12246 | return res; | |
12247 | } | |
12248 | ||
12249 | int Client::ll_mkdir(Inode *parent, const char *name, mode_t mode, | |
12250 | struct stat *attr, Inode **out, const UserPerm& perm) | |
12251 | { | |
11fdf7f2 | 12252 | std::lock_guard lock(client_lock); |
7c673cae | 12253 | |
181888fb FG |
12254 | if (unmounting) |
12255 | return -ENOTCONN; | |
12256 | ||
7c673cae FG |
12257 | vinodeno_t vparent = _get_vino(parent); |
12258 | ||
12259 | ldout(cct, 3) << "ll_mkdir " << vparent << " " << name << dendl; | |
12260 | tout(cct) << "ll_mkdir" << std::endl; | |
12261 | tout(cct) << vparent.ino.val << std::endl; | |
12262 | tout(cct) << name << std::endl; | |
12263 | tout(cct) << mode << std::endl; | |
12264 | ||
11fdf7f2 TL |
12265 | auto fuse_default_permissions = cct->_conf.get_val<bool>( |
12266 | "fuse_default_permissions"); | |
12267 | if (!fuse_default_permissions) { | |
7c673cae FG |
12268 | int r = may_create(parent, perm); |
12269 | if (r < 0) | |
12270 | return r; | |
12271 | } | |
12272 | ||
12273 | InodeRef in; | |
12274 | int r = _mkdir(parent, name, mode, perm, &in); | |
12275 | if (r == 0) { | |
12276 | fill_stat(in, attr); | |
12277 | _ll_get(in.get()); | |
12278 | } | |
12279 | tout(cct) << attr->st_ino << std::endl; | |
12280 | ldout(cct, 3) << "ll_mkdir " << vparent << " " << name | |
12281 | << " = " << r << " (" << hex << attr->st_ino << dec << ")" << dendl; | |
12282 | *out = in.get(); | |
12283 | return r; | |
12284 | } | |
12285 | ||
12286 | int Client::ll_mkdirx(Inode *parent, const char *name, mode_t mode, Inode **out, | |
12287 | struct ceph_statx *stx, unsigned want, unsigned flags, | |
12288 | const UserPerm& perms) | |
12289 | { | |
11fdf7f2 | 12290 | std::lock_guard lock(client_lock); |
7c673cae | 12291 | |
181888fb FG |
12292 | if (unmounting) |
12293 | return -ENOTCONN; | |
12294 | ||
7c673cae FG |
12295 | vinodeno_t vparent = _get_vino(parent); |
12296 | ||
12297 | ldout(cct, 3) << "ll_mkdirx " << vparent << " " << name << dendl; | |
12298 | tout(cct) << "ll_mkdirx" << std::endl; | |
12299 | tout(cct) << vparent.ino.val << std::endl; | |
12300 | tout(cct) << name << std::endl; | |
12301 | tout(cct) << mode << std::endl; | |
12302 | ||
11fdf7f2 TL |
12303 | auto fuse_default_permissions = cct->_conf.get_val<bool>( |
12304 | "fuse_default_permissions"); | |
12305 | if (!fuse_default_permissions) { | |
7c673cae FG |
12306 | int r = may_create(parent, perms); |
12307 | if (r < 0) | |
12308 | return r; | |
12309 | } | |
12310 | ||
12311 | InodeRef in; | |
12312 | int r = _mkdir(parent, name, mode, perms, &in); | |
12313 | if (r == 0) { | |
12314 | fill_statx(in, statx_to_mask(flags, want), stx); | |
12315 | _ll_get(in.get()); | |
12316 | } else { | |
12317 | stx->stx_ino = 0; | |
12318 | stx->stx_mask = 0; | |
12319 | } | |
12320 | tout(cct) << stx->stx_ino << std::endl; | |
12321 | ldout(cct, 3) << "ll_mkdirx " << vparent << " " << name | |
12322 | << " = " << r << " (" << hex << stx->stx_ino << dec << ")" << dendl; | |
12323 | *out = in.get(); | |
12324 | return r; | |
12325 | } | |
12326 | ||
12327 | int Client::_symlink(Inode *dir, const char *name, const char *target, | |
12328 | const UserPerm& perms, InodeRef *inp) | |
12329 | { | |
1adf2230 | 12330 | ldout(cct, 8) << "_symlink(" << dir->ino << " " << name << ", " << target |
7c673cae FG |
12331 | << ", uid " << perms.uid() << ", gid " << perms.gid() << ")" |
12332 | << dendl; | |
12333 | ||
12334 | if (strlen(name) > NAME_MAX) | |
12335 | return -ENAMETOOLONG; | |
12336 | ||
12337 | if (dir->snapid != CEPH_NOSNAP) { | |
12338 | return -EROFS; | |
12339 | } | |
12340 | if (is_quota_files_exceeded(dir, perms)) { | |
12341 | return -EDQUOT; | |
12342 | } | |
12343 | ||
12344 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_SYMLINK); | |
12345 | ||
12346 | filepath path; | |
12347 | dir->make_nosnap_relative_path(path); | |
12348 | path.push_dentry(name); | |
12349 | req->set_filepath(path); | |
12350 | req->set_inode(dir); | |
12351 | req->set_string2(target); | |
12352 | req->dentry_drop = CEPH_CAP_FILE_SHARED; | |
12353 | req->dentry_unless = CEPH_CAP_FILE_EXCL; | |
12354 | ||
12355 | Dentry *de; | |
12356 | int res = get_or_create(dir, name, &de); | |
12357 | if (res < 0) | |
12358 | goto fail; | |
12359 | req->set_dentry(de); | |
12360 | ||
12361 | res = make_request(req, perms, inp); | |
12362 | ||
12363 | trim_cache(); | |
1adf2230 | 12364 | ldout(cct, 8) << "_symlink(\"" << path << "\", \"" << target << "\") = " << |
7c673cae FG |
12365 | res << dendl; |
12366 | return res; | |
12367 | ||
12368 | fail: | |
12369 | put_request(req); | |
12370 | return res; | |
12371 | } | |
12372 | ||
12373 | int Client::ll_symlink(Inode *parent, const char *name, const char *value, | |
12374 | struct stat *attr, Inode **out, const UserPerm& perms) | |
12375 | { | |
11fdf7f2 | 12376 | std::lock_guard lock(client_lock); |
7c673cae | 12377 | |
181888fb FG |
12378 | if (unmounting) |
12379 | return -ENOTCONN; | |
12380 | ||
7c673cae FG |
12381 | vinodeno_t vparent = _get_vino(parent); |
12382 | ||
12383 | ldout(cct, 3) << "ll_symlink " << vparent << " " << name << " -> " << value | |
12384 | << dendl; | |
12385 | tout(cct) << "ll_symlink" << std::endl; | |
12386 | tout(cct) << vparent.ino.val << std::endl; | |
12387 | tout(cct) << name << std::endl; | |
12388 | tout(cct) << value << std::endl; | |
12389 | ||
11fdf7f2 TL |
12390 | auto fuse_default_permissions = cct->_conf.get_val<bool>( |
12391 | "fuse_default_permissions"); | |
12392 | if (!fuse_default_permissions) { | |
7c673cae FG |
12393 | int r = may_create(parent, perms); |
12394 | if (r < 0) | |
12395 | return r; | |
12396 | } | |
12397 | ||
12398 | InodeRef in; | |
12399 | int r = _symlink(parent, name, value, perms, &in); | |
12400 | if (r == 0) { | |
12401 | fill_stat(in, attr); | |
12402 | _ll_get(in.get()); | |
12403 | } | |
12404 | tout(cct) << attr->st_ino << std::endl; | |
12405 | ldout(cct, 3) << "ll_symlink " << vparent << " " << name | |
12406 | << " = " << r << " (" << hex << attr->st_ino << dec << ")" << dendl; | |
12407 | *out = in.get(); | |
12408 | return r; | |
12409 | } | |
12410 | ||
12411 | int Client::ll_symlinkx(Inode *parent, const char *name, const char *value, | |
12412 | Inode **out, struct ceph_statx *stx, unsigned want, | |
12413 | unsigned flags, const UserPerm& perms) | |
12414 | { | |
11fdf7f2 | 12415 | std::lock_guard lock(client_lock); |
7c673cae | 12416 | |
181888fb FG |
12417 | if (unmounting) |
12418 | return -ENOTCONN; | |
12419 | ||
7c673cae FG |
12420 | vinodeno_t vparent = _get_vino(parent); |
12421 | ||
12422 | ldout(cct, 3) << "ll_symlinkx " << vparent << " " << name << " -> " << value | |
12423 | << dendl; | |
12424 | tout(cct) << "ll_symlinkx" << std::endl; | |
12425 | tout(cct) << vparent.ino.val << std::endl; | |
12426 | tout(cct) << name << std::endl; | |
12427 | tout(cct) << value << std::endl; | |
12428 | ||
11fdf7f2 TL |
12429 | auto fuse_default_permissions = cct->_conf.get_val<bool>( |
12430 | "fuse_default_permissions"); | |
12431 | if (!fuse_default_permissions) { | |
7c673cae FG |
12432 | int r = may_create(parent, perms); |
12433 | if (r < 0) | |
12434 | return r; | |
12435 | } | |
12436 | ||
12437 | InodeRef in; | |
12438 | int r = _symlink(parent, name, value, perms, &in); | |
12439 | if (r == 0) { | |
12440 | fill_statx(in, statx_to_mask(flags, want), stx); | |
12441 | _ll_get(in.get()); | |
12442 | } | |
12443 | tout(cct) << stx->stx_ino << std::endl; | |
12444 | ldout(cct, 3) << "ll_symlinkx " << vparent << " " << name | |
12445 | << " = " << r << " (" << hex << stx->stx_ino << dec << ")" << dendl; | |
12446 | *out = in.get(); | |
12447 | return r; | |
12448 | } | |
12449 | ||
12450 | int Client::_unlink(Inode *dir, const char *name, const UserPerm& perm) | |
12451 | { | |
1adf2230 | 12452 | ldout(cct, 8) << "_unlink(" << dir->ino << " " << name |
7c673cae FG |
12453 | << " uid " << perm.uid() << " gid " << perm.gid() |
12454 | << ")" << dendl; | |
12455 | ||
12456 | if (dir->snapid != CEPH_NOSNAP) { | |
12457 | return -EROFS; | |
12458 | } | |
12459 | ||
12460 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_UNLINK); | |
12461 | ||
12462 | filepath path; | |
12463 | dir->make_nosnap_relative_path(path); | |
12464 | path.push_dentry(name); | |
12465 | req->set_filepath(path); | |
12466 | ||
12467 | InodeRef otherin; | |
b32b8144 | 12468 | Inode *in; |
7c673cae | 12469 | Dentry *de; |
b32b8144 | 12470 | |
7c673cae FG |
12471 | int res = get_or_create(dir, name, &de); |
12472 | if (res < 0) | |
12473 | goto fail; | |
12474 | req->set_dentry(de); | |
12475 | req->dentry_drop = CEPH_CAP_FILE_SHARED; | |
12476 | req->dentry_unless = CEPH_CAP_FILE_EXCL; | |
12477 | ||
12478 | res = _lookup(dir, name, 0, &otherin, perm); | |
12479 | if (res < 0) | |
12480 | goto fail; | |
b32b8144 FG |
12481 | |
12482 | in = otherin.get(); | |
12483 | req->set_other_inode(in); | |
12484 | in->break_all_delegs(); | |
7c673cae FG |
12485 | req->other_inode_drop = CEPH_CAP_LINK_SHARED | CEPH_CAP_LINK_EXCL; |
12486 | ||
12487 | req->set_inode(dir); | |
12488 | ||
12489 | res = make_request(req, perm); | |
12490 | ||
12491 | trim_cache(); | |
1adf2230 | 12492 | ldout(cct, 8) << "unlink(" << path << ") = " << res << dendl; |
7c673cae FG |
12493 | return res; |
12494 | ||
12495 | fail: | |
12496 | put_request(req); | |
12497 | return res; | |
12498 | } | |
12499 | ||
12500 | int Client::ll_unlink(Inode *in, const char *name, const UserPerm& perm) | |
12501 | { | |
11fdf7f2 | 12502 | std::lock_guard lock(client_lock); |
7c673cae | 12503 | |
181888fb FG |
12504 | if (unmounting) |
12505 | return -ENOTCONN; | |
12506 | ||
7c673cae FG |
12507 | vinodeno_t vino = _get_vino(in); |
12508 | ||
12509 | ldout(cct, 3) << "ll_unlink " << vino << " " << name << dendl; | |
12510 | tout(cct) << "ll_unlink" << std::endl; | |
12511 | tout(cct) << vino.ino.val << std::endl; | |
12512 | tout(cct) << name << std::endl; | |
12513 | ||
11fdf7f2 TL |
12514 | auto fuse_default_permissions = cct->_conf.get_val<bool>( |
12515 | "fuse_default_permissions"); | |
12516 | if (!fuse_default_permissions) { | |
7c673cae FG |
12517 | int r = may_delete(in, name, perm); |
12518 | if (r < 0) | |
12519 | return r; | |
12520 | } | |
12521 | return _unlink(in, name, perm); | |
12522 | } | |
12523 | ||
12524 | int Client::_rmdir(Inode *dir, const char *name, const UserPerm& perms) | |
12525 | { | |
1adf2230 | 12526 | ldout(cct, 8) << "_rmdir(" << dir->ino << " " << name << " uid " |
7c673cae FG |
12527 | << perms.uid() << " gid " << perms.gid() << ")" << dendl; |
12528 | ||
12529 | if (dir->snapid != CEPH_NOSNAP && dir->snapid != CEPH_SNAPDIR) { | |
12530 | return -EROFS; | |
12531 | } | |
b32b8144 FG |
12532 | |
12533 | int op = dir->snapid == CEPH_SNAPDIR ? CEPH_MDS_OP_RMSNAP : CEPH_MDS_OP_RMDIR; | |
12534 | MetaRequest *req = new MetaRequest(op); | |
7c673cae FG |
12535 | filepath path; |
12536 | dir->make_nosnap_relative_path(path); | |
12537 | path.push_dentry(name); | |
12538 | req->set_filepath(path); | |
11fdf7f2 | 12539 | req->set_inode(dir); |
7c673cae FG |
12540 | |
12541 | req->dentry_drop = CEPH_CAP_FILE_SHARED; | |
12542 | req->dentry_unless = CEPH_CAP_FILE_EXCL; | |
12543 | req->other_inode_drop = CEPH_CAP_LINK_SHARED | CEPH_CAP_LINK_EXCL; | |
12544 | ||
12545 | InodeRef in; | |
12546 | ||
12547 | Dentry *de; | |
12548 | int res = get_or_create(dir, name, &de); | |
12549 | if (res < 0) | |
12550 | goto fail; | |
b32b8144 FG |
12551 | if (op == CEPH_MDS_OP_RMDIR) |
12552 | req->set_dentry(de); | |
12553 | else | |
12554 | de->get(); | |
12555 | ||
7c673cae FG |
12556 | res = _lookup(dir, name, 0, &in, perms); |
12557 | if (res < 0) | |
12558 | goto fail; | |
11fdf7f2 TL |
12559 | |
12560 | if (op == CEPH_MDS_OP_RMSNAP) { | |
7c673cae | 12561 | unlink(de, true, true); |
b32b8144 | 12562 | de->put(); |
7c673cae | 12563 | } |
11fdf7f2 | 12564 | req->set_other_inode(in.get()); |
7c673cae FG |
12565 | |
12566 | res = make_request(req, perms); | |
12567 | ||
12568 | trim_cache(); | |
1adf2230 | 12569 | ldout(cct, 8) << "rmdir(" << path << ") = " << res << dendl; |
7c673cae FG |
12570 | return res; |
12571 | ||
12572 | fail: | |
12573 | put_request(req); | |
12574 | return res; | |
12575 | } | |
12576 | ||
12577 | int Client::ll_rmdir(Inode *in, const char *name, const UserPerm& perms) | |
12578 | { | |
11fdf7f2 | 12579 | std::lock_guard lock(client_lock); |
7c673cae | 12580 | |
181888fb FG |
12581 | if (unmounting) |
12582 | return -ENOTCONN; | |
12583 | ||
7c673cae FG |
12584 | vinodeno_t vino = _get_vino(in); |
12585 | ||
12586 | ldout(cct, 3) << "ll_rmdir " << vino << " " << name << dendl; | |
12587 | tout(cct) << "ll_rmdir" << std::endl; | |
12588 | tout(cct) << vino.ino.val << std::endl; | |
12589 | tout(cct) << name << std::endl; | |
12590 | ||
11fdf7f2 TL |
12591 | auto fuse_default_permissions = cct->_conf.get_val<bool>( |
12592 | "fuse_default_permissions"); | |
12593 | if (!fuse_default_permissions) { | |
7c673cae FG |
12594 | int r = may_delete(in, name, perms); |
12595 | if (r < 0) | |
12596 | return r; | |
12597 | } | |
12598 | ||
12599 | return _rmdir(in, name, perms); | |
12600 | } | |
12601 | ||
12602 | int Client::_rename(Inode *fromdir, const char *fromname, Inode *todir, const char *toname, const UserPerm& perm) | |
12603 | { | |
1adf2230 | 12604 | ldout(cct, 8) << "_rename(" << fromdir->ino << " " << fromname << " to " |
7c673cae FG |
12605 | << todir->ino << " " << toname |
12606 | << " uid " << perm.uid() << " gid " << perm.gid() << ")" | |
12607 | << dendl; | |
12608 | ||
12609 | if (fromdir->snapid != todir->snapid) | |
12610 | return -EXDEV; | |
12611 | ||
12612 | int op = CEPH_MDS_OP_RENAME; | |
12613 | if (fromdir->snapid != CEPH_NOSNAP) { | |
12614 | if (fromdir == todir && fromdir->snapid == CEPH_SNAPDIR) | |
12615 | op = CEPH_MDS_OP_RENAMESNAP; | |
12616 | else | |
12617 | return -EROFS; | |
12618 | } | |
12619 | if (fromdir != todir) { | |
12620 | Inode *fromdir_root = | |
12621 | fromdir->quota.is_enable() ? fromdir : get_quota_root(fromdir, perm); | |
12622 | Inode *todir_root = | |
12623 | todir->quota.is_enable() ? todir : get_quota_root(todir, perm); | |
12624 | if (fromdir_root != todir_root) { | |
12625 | return -EXDEV; | |
12626 | } | |
12627 | } | |
12628 | ||
12629 | InodeRef target; | |
12630 | MetaRequest *req = new MetaRequest(op); | |
12631 | ||
12632 | filepath from; | |
12633 | fromdir->make_nosnap_relative_path(from); | |
12634 | from.push_dentry(fromname); | |
12635 | filepath to; | |
12636 | todir->make_nosnap_relative_path(to); | |
12637 | to.push_dentry(toname); | |
12638 | req->set_filepath(to); | |
12639 | req->set_filepath2(from); | |
12640 | ||
12641 | Dentry *oldde; | |
12642 | int res = get_or_create(fromdir, fromname, &oldde); | |
12643 | if (res < 0) | |
12644 | goto fail; | |
12645 | Dentry *de; | |
12646 | res = get_or_create(todir, toname, &de); | |
12647 | if (res < 0) | |
12648 | goto fail; | |
12649 | ||
12650 | if (op == CEPH_MDS_OP_RENAME) { | |
12651 | req->set_old_dentry(oldde); | |
12652 | req->old_dentry_drop = CEPH_CAP_FILE_SHARED; | |
12653 | req->old_dentry_unless = CEPH_CAP_FILE_EXCL; | |
12654 | ||
12655 | req->set_dentry(de); | |
12656 | req->dentry_drop = CEPH_CAP_FILE_SHARED; | |
12657 | req->dentry_unless = CEPH_CAP_FILE_EXCL; | |
12658 | ||
12659 | InodeRef oldin, otherin; | |
12660 | res = _lookup(fromdir, fromname, 0, &oldin, perm); | |
12661 | if (res < 0) | |
12662 | goto fail; | |
b32b8144 FG |
12663 | |
12664 | Inode *oldinode = oldin.get(); | |
12665 | oldinode->break_all_delegs(); | |
12666 | req->set_old_inode(oldinode); | |
7c673cae FG |
12667 | req->old_inode_drop = CEPH_CAP_LINK_SHARED; |
12668 | ||
12669 | res = _lookup(todir, toname, 0, &otherin, perm); | |
b32b8144 FG |
12670 | switch (res) { |
12671 | case 0: | |
12672 | { | |
12673 | Inode *in = otherin.get(); | |
12674 | req->set_other_inode(in); | |
12675 | in->break_all_delegs(); | |
12676 | } | |
7c673cae | 12677 | req->other_inode_drop = CEPH_CAP_LINK_SHARED | CEPH_CAP_LINK_EXCL; |
b32b8144 FG |
12678 | break; |
12679 | case -ENOENT: | |
12680 | break; | |
12681 | default: | |
12682 | goto fail; | |
7c673cae FG |
12683 | } |
12684 | ||
12685 | req->set_inode(todir); | |
12686 | } else { | |
12687 | // renamesnap reply contains no tracedn, so we need to invalidate | |
12688 | // dentry manually | |
12689 | unlink(oldde, true, true); | |
12690 | unlink(de, true, true); | |
11fdf7f2 TL |
12691 | |
12692 | req->set_inode(todir); | |
7c673cae FG |
12693 | } |
12694 | ||
12695 | res = make_request(req, perm, &target); | |
12696 | ldout(cct, 10) << "rename result is " << res << dendl; | |
12697 | ||
12698 | // renamed item from our cache | |
12699 | ||
12700 | trim_cache(); | |
1adf2230 | 12701 | ldout(cct, 8) << "_rename(" << from << ", " << to << ") = " << res << dendl; |
7c673cae FG |
12702 | return res; |
12703 | ||
12704 | fail: | |
12705 | put_request(req); | |
12706 | return res; | |
12707 | } | |
12708 | ||
12709 | int Client::ll_rename(Inode *parent, const char *name, Inode *newparent, | |
12710 | const char *newname, const UserPerm& perm) | |
12711 | { | |
11fdf7f2 | 12712 | std::lock_guard lock(client_lock); |
7c673cae | 12713 | |
181888fb FG |
12714 | if (unmounting) |
12715 | return -ENOTCONN; | |
12716 | ||
7c673cae FG |
12717 | vinodeno_t vparent = _get_vino(parent); |
12718 | vinodeno_t vnewparent = _get_vino(newparent); | |
12719 | ||
12720 | ldout(cct, 3) << "ll_rename " << vparent << " " << name << " to " | |
12721 | << vnewparent << " " << newname << dendl; | |
12722 | tout(cct) << "ll_rename" << std::endl; | |
12723 | tout(cct) << vparent.ino.val << std::endl; | |
12724 | tout(cct) << name << std::endl; | |
12725 | tout(cct) << vnewparent.ino.val << std::endl; | |
12726 | tout(cct) << newname << std::endl; | |
12727 | ||
11fdf7f2 TL |
12728 | auto fuse_default_permissions = cct->_conf.get_val<bool>( |
12729 | "fuse_default_permissions"); | |
12730 | if (!fuse_default_permissions) { | |
7c673cae FG |
12731 | int r = may_delete(parent, name, perm); |
12732 | if (r < 0) | |
12733 | return r; | |
12734 | r = may_delete(newparent, newname, perm); | |
12735 | if (r < 0 && r != -ENOENT) | |
12736 | return r; | |
12737 | } | |
12738 | ||
12739 | return _rename(parent, name, newparent, newname, perm); | |
12740 | } | |
12741 | ||
12742 | int Client::_link(Inode *in, Inode *dir, const char *newname, const UserPerm& perm, InodeRef *inp) | |
12743 | { | |
1adf2230 | 12744 | ldout(cct, 8) << "_link(" << in->ino << " to " << dir->ino << " " << newname |
7c673cae FG |
12745 | << " uid " << perm.uid() << " gid " << perm.gid() << ")" << dendl; |
12746 | ||
12747 | if (strlen(newname) > NAME_MAX) | |
12748 | return -ENAMETOOLONG; | |
12749 | ||
12750 | if (in->snapid != CEPH_NOSNAP || dir->snapid != CEPH_NOSNAP) { | |
12751 | return -EROFS; | |
12752 | } | |
12753 | if (is_quota_files_exceeded(dir, perm)) { | |
12754 | return -EDQUOT; | |
12755 | } | |
12756 | ||
b32b8144 | 12757 | in->break_all_delegs(); |
7c673cae FG |
12758 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_LINK); |
12759 | ||
12760 | filepath path(newname, dir->ino); | |
12761 | req->set_filepath(path); | |
12762 | filepath existing(in->ino); | |
12763 | req->set_filepath2(existing); | |
12764 | ||
12765 | req->set_inode(dir); | |
12766 | req->inode_drop = CEPH_CAP_FILE_SHARED; | |
12767 | req->inode_unless = CEPH_CAP_FILE_EXCL; | |
12768 | ||
12769 | Dentry *de; | |
12770 | int res = get_or_create(dir, newname, &de); | |
12771 | if (res < 0) | |
12772 | goto fail; | |
12773 | req->set_dentry(de); | |
12774 | ||
12775 | res = make_request(req, perm, inp); | |
12776 | ldout(cct, 10) << "link result is " << res << dendl; | |
12777 | ||
12778 | trim_cache(); | |
1adf2230 | 12779 | ldout(cct, 8) << "link(" << existing << ", " << path << ") = " << res << dendl; |
7c673cae FG |
12780 | return res; |
12781 | ||
12782 | fail: | |
12783 | put_request(req); | |
12784 | return res; | |
12785 | } | |
12786 | ||
12787 | int Client::ll_link(Inode *in, Inode *newparent, const char *newname, | |
12788 | const UserPerm& perm) | |
12789 | { | |
11fdf7f2 | 12790 | std::lock_guard lock(client_lock); |
7c673cae | 12791 | |
181888fb FG |
12792 | if (unmounting) |
12793 | return -ENOTCONN; | |
12794 | ||
7c673cae FG |
12795 | vinodeno_t vino = _get_vino(in); |
12796 | vinodeno_t vnewparent = _get_vino(newparent); | |
12797 | ||
31f18b77 | 12798 | ldout(cct, 3) << "ll_link " << vino << " to " << vnewparent << " " << |
7c673cae FG |
12799 | newname << dendl; |
12800 | tout(cct) << "ll_link" << std::endl; | |
12801 | tout(cct) << vino.ino.val << std::endl; | |
12802 | tout(cct) << vnewparent << std::endl; | |
12803 | tout(cct) << newname << std::endl; | |
12804 | ||
7c673cae FG |
12805 | InodeRef target; |
12806 | ||
11fdf7f2 TL |
12807 | auto fuse_default_permissions = cct->_conf.get_val<bool>( |
12808 | "fuse_default_permissions"); | |
12809 | if (!fuse_default_permissions) { | |
7c673cae FG |
12810 | if (S_ISDIR(in->mode)) |
12811 | return -EPERM; | |
12812 | ||
11fdf7f2 | 12813 | int r = may_hardlink(in, perm); |
7c673cae FG |
12814 | if (r < 0) |
12815 | return r; | |
12816 | ||
12817 | r = may_create(newparent, perm); | |
12818 | if (r < 0) | |
12819 | return r; | |
12820 | } | |
12821 | ||
12822 | return _link(in, newparent, newname, perm, &target); | |
12823 | } | |
12824 | ||
12825 | int Client::ll_num_osds(void) | |
12826 | { | |
11fdf7f2 | 12827 | std::lock_guard lock(client_lock); |
7c673cae FG |
12828 | return objecter->with_osdmap(std::mem_fn(&OSDMap::get_num_osds)); |
12829 | } | |
12830 | ||
12831 | int Client::ll_osdaddr(int osd, uint32_t *addr) | |
12832 | { | |
11fdf7f2 | 12833 | std::lock_guard lock(client_lock); |
181888fb | 12834 | |
7c673cae FG |
12835 | entity_addr_t g; |
12836 | bool exists = objecter->with_osdmap([&](const OSDMap& o) { | |
12837 | if (!o.exists(osd)) | |
12838 | return false; | |
11fdf7f2 | 12839 | g = o.get_addrs(osd).front(); |
7c673cae FG |
12840 | return true; |
12841 | }); | |
12842 | if (!exists) | |
12843 | return -1; | |
12844 | uint32_t nb_addr = (g.in4_addr()).sin_addr.s_addr; | |
12845 | *addr = ntohl(nb_addr); | |
12846 | return 0; | |
12847 | } | |
181888fb | 12848 | |
7c673cae FG |
12849 | uint32_t Client::ll_stripe_unit(Inode *in) |
12850 | { | |
11fdf7f2 | 12851 | std::lock_guard lock(client_lock); |
7c673cae FG |
12852 | return in->layout.stripe_unit; |
12853 | } | |
12854 | ||
12855 | uint64_t Client::ll_snap_seq(Inode *in) | |
12856 | { | |
11fdf7f2 | 12857 | std::lock_guard lock(client_lock); |
7c673cae FG |
12858 | return in->snaprealm->seq; |
12859 | } | |
12860 | ||
12861 | int Client::ll_file_layout(Inode *in, file_layout_t *layout) | |
12862 | { | |
11fdf7f2 | 12863 | std::lock_guard lock(client_lock); |
7c673cae FG |
12864 | *layout = in->layout; |
12865 | return 0; | |
12866 | } | |
12867 | ||
12868 | int Client::ll_file_layout(Fh *fh, file_layout_t *layout) | |
12869 | { | |
12870 | return ll_file_layout(fh->inode.get(), layout); | |
12871 | } | |
12872 | ||
12873 | /* Currently we cannot take advantage of redundancy in reads, since we | |
12874 | would have to go through all possible placement groups (a | |
12875 | potentially quite large number determined by a hash), and use CRUSH | |
12876 | to calculate the appropriate set of OSDs for each placement group, | |
12877 | then index into that. An array with one entry per OSD is much more | |
12878 | tractable and works for demonstration purposes. */ | |
12879 | ||
12880 | int Client::ll_get_stripe_osd(Inode *in, uint64_t blockno, | |
12881 | file_layout_t* layout) | |
12882 | { | |
11fdf7f2 | 12883 | std::lock_guard lock(client_lock); |
181888fb | 12884 | |
28e407b8 | 12885 | inodeno_t ino = in->ino; |
7c673cae FG |
12886 | uint32_t object_size = layout->object_size; |
12887 | uint32_t su = layout->stripe_unit; | |
12888 | uint32_t stripe_count = layout->stripe_count; | |
12889 | uint64_t stripes_per_object = object_size / su; | |
11fdf7f2 | 12890 | uint64_t stripeno = 0, stripepos = 0; |
7c673cae | 12891 | |
11fdf7f2 TL |
12892 | if(stripe_count) { |
12893 | stripeno = blockno / stripe_count; // which horizontal stripe (Y) | |
12894 | stripepos = blockno % stripe_count; // which object in the object set (X) | |
12895 | } | |
7c673cae FG |
12896 | uint64_t objectsetno = stripeno / stripes_per_object; // which object set |
12897 | uint64_t objectno = objectsetno * stripe_count + stripepos; // object id | |
12898 | ||
12899 | object_t oid = file_object_t(ino, objectno); | |
12900 | return objecter->with_osdmap([&](const OSDMap& o) { | |
12901 | ceph_object_layout olayout = | |
12902 | o.file_to_object_layout(oid, *layout); | |
12903 | pg_t pg = (pg_t)olayout.ol_pgid; | |
12904 | vector<int> osds; | |
12905 | int primary; | |
12906 | o.pg_to_acting_osds(pg, &osds, &primary); | |
12907 | return primary; | |
12908 | }); | |
12909 | } | |
12910 | ||
12911 | /* Return the offset of the block, internal to the object */ | |
12912 | ||
12913 | uint64_t Client::ll_get_internal_offset(Inode *in, uint64_t blockno) | |
12914 | { | |
11fdf7f2 | 12915 | std::lock_guard lock(client_lock); |
7c673cae FG |
12916 | file_layout_t *layout=&(in->layout); |
12917 | uint32_t object_size = layout->object_size; | |
12918 | uint32_t su = layout->stripe_unit; | |
12919 | uint64_t stripes_per_object = object_size / su; | |
12920 | ||
12921 | return (blockno % stripes_per_object) * su; | |
12922 | } | |
12923 | ||
12924 | int Client::ll_opendir(Inode *in, int flags, dir_result_t** dirpp, | |
12925 | const UserPerm& perms) | |
12926 | { | |
11fdf7f2 | 12927 | std::lock_guard lock(client_lock); |
7c673cae | 12928 | |
181888fb FG |
12929 | if (unmounting) |
12930 | return -ENOTCONN; | |
12931 | ||
7c673cae FG |
12932 | vinodeno_t vino = _get_vino(in); |
12933 | ||
12934 | ldout(cct, 3) << "ll_opendir " << vino << dendl; | |
12935 | tout(cct) << "ll_opendir" << std::endl; | |
12936 | tout(cct) << vino.ino.val << std::endl; | |
12937 | ||
11fdf7f2 TL |
12938 | auto fuse_default_permissions = cct->_conf.get_val<bool>( |
12939 | "fuse_default_permissions"); | |
12940 | if (!fuse_default_permissions) { | |
7c673cae FG |
12941 | int r = may_open(in, flags, perms); |
12942 | if (r < 0) | |
12943 | return r; | |
12944 | } | |
12945 | ||
12946 | int r = _opendir(in, dirpp, perms); | |
12947 | tout(cct) << (unsigned long)*dirpp << std::endl; | |
12948 | ||
12949 | ldout(cct, 3) << "ll_opendir " << vino << " = " << r << " (" << *dirpp << ")" | |
12950 | << dendl; | |
12951 | return r; | |
12952 | } | |
12953 | ||
12954 | int Client::ll_releasedir(dir_result_t *dirp) | |
12955 | { | |
11fdf7f2 | 12956 | std::lock_guard lock(client_lock); |
7c673cae FG |
12957 | ldout(cct, 3) << "ll_releasedir " << dirp << dendl; |
12958 | tout(cct) << "ll_releasedir" << std::endl; | |
12959 | tout(cct) << (unsigned long)dirp << std::endl; | |
181888fb FG |
12960 | |
12961 | if (unmounting) | |
12962 | return -ENOTCONN; | |
12963 | ||
7c673cae FG |
12964 | _closedir(dirp); |
12965 | return 0; | |
12966 | } | |
12967 | ||
12968 | int Client::ll_fsyncdir(dir_result_t *dirp) | |
12969 | { | |
11fdf7f2 | 12970 | std::lock_guard lock(client_lock); |
7c673cae FG |
12971 | ldout(cct, 3) << "ll_fsyncdir " << dirp << dendl; |
12972 | tout(cct) << "ll_fsyncdir" << std::endl; | |
12973 | tout(cct) << (unsigned long)dirp << std::endl; | |
12974 | ||
181888fb FG |
12975 | if (unmounting) |
12976 | return -ENOTCONN; | |
12977 | ||
7c673cae FG |
12978 | return _fsync(dirp->inode.get(), false); |
12979 | } | |
12980 | ||
12981 | int Client::ll_open(Inode *in, int flags, Fh **fhp, const UserPerm& perms) | |
12982 | { | |
11fdf7f2 | 12983 | ceph_assert(!(flags & O_CREAT)); |
7c673cae | 12984 | |
11fdf7f2 | 12985 | std::lock_guard lock(client_lock); |
7c673cae | 12986 | |
181888fb FG |
12987 | if (unmounting) |
12988 | return -ENOTCONN; | |
12989 | ||
7c673cae FG |
12990 | vinodeno_t vino = _get_vino(in); |
12991 | ||
12992 | ldout(cct, 3) << "ll_open " << vino << " " << ceph_flags_sys2wire(flags) << dendl; | |
12993 | tout(cct) << "ll_open" << std::endl; | |
12994 | tout(cct) << vino.ino.val << std::endl; | |
12995 | tout(cct) << ceph_flags_sys2wire(flags) << std::endl; | |
12996 | ||
12997 | int r; | |
11fdf7f2 TL |
12998 | auto fuse_default_permissions = cct->_conf.get_val<bool>( |
12999 | "fuse_default_permissions"); | |
13000 | if (!fuse_default_permissions) { | |
7c673cae FG |
13001 | r = may_open(in, flags, perms); |
13002 | if (r < 0) | |
13003 | goto out; | |
13004 | } | |
13005 | ||
13006 | r = _open(in, flags, 0, fhp /* may be NULL */, perms); | |
13007 | ||
13008 | out: | |
13009 | Fh *fhptr = fhp ? *fhp : NULL; | |
13010 | if (fhptr) { | |
13011 | ll_unclosed_fh_set.insert(fhptr); | |
13012 | } | |
13013 | tout(cct) << (unsigned long)fhptr << std::endl; | |
13014 | ldout(cct, 3) << "ll_open " << vino << " " << ceph_flags_sys2wire(flags) << | |
13015 | " = " << r << " (" << fhptr << ")" << dendl; | |
13016 | return r; | |
13017 | } | |
13018 | ||
13019 | int Client::_ll_create(Inode *parent, const char *name, mode_t mode, | |
13020 | int flags, InodeRef *in, int caps, Fh **fhp, | |
13021 | const UserPerm& perms) | |
13022 | { | |
13023 | *fhp = NULL; | |
13024 | ||
13025 | vinodeno_t vparent = _get_vino(parent); | |
13026 | ||
1adf2230 | 13027 | ldout(cct, 8) << "_ll_create " << vparent << " " << name << " 0" << oct << |
7c673cae FG |
13028 | mode << dec << " " << ceph_flags_sys2wire(flags) << ", uid " << perms.uid() |
13029 | << ", gid " << perms.gid() << dendl; | |
13030 | tout(cct) << "ll_create" << std::endl; | |
13031 | tout(cct) << vparent.ino.val << std::endl; | |
13032 | tout(cct) << name << std::endl; | |
13033 | tout(cct) << mode << std::endl; | |
13034 | tout(cct) << ceph_flags_sys2wire(flags) << std::endl; | |
13035 | ||
13036 | bool created = false; | |
13037 | int r = _lookup(parent, name, caps, in, perms); | |
13038 | ||
13039 | if (r == 0 && (flags & O_CREAT) && (flags & O_EXCL)) | |
13040 | return -EEXIST; | |
13041 | ||
13042 | if (r == -ENOENT && (flags & O_CREAT)) { | |
11fdf7f2 TL |
13043 | auto fuse_default_permissions = cct->_conf.get_val<bool>( |
13044 | "fuse_default_permissions"); | |
13045 | if (!fuse_default_permissions) { | |
7c673cae FG |
13046 | r = may_create(parent, perms); |
13047 | if (r < 0) | |
13048 | goto out; | |
13049 | } | |
13050 | r = _create(parent, name, flags, mode, in, fhp, 0, 0, 0, NULL, &created, | |
13051 | perms); | |
13052 | if (r < 0) | |
13053 | goto out; | |
13054 | } | |
13055 | ||
13056 | if (r < 0) | |
13057 | goto out; | |
13058 | ||
11fdf7f2 | 13059 | ceph_assert(*in); |
7c673cae FG |
13060 | |
13061 | ldout(cct, 20) << "_ll_create created = " << created << dendl; | |
13062 | if (!created) { | |
11fdf7f2 TL |
13063 | auto fuse_default_permissions = cct->_conf.get_val<bool>( |
13064 | "fuse_default_permissions"); | |
13065 | if (!fuse_default_permissions) { | |
7c673cae FG |
13066 | r = may_open(in->get(), flags, perms); |
13067 | if (r < 0) { | |
13068 | if (*fhp) { | |
13069 | int release_r = _release_fh(*fhp); | |
11fdf7f2 | 13070 | ceph_assert(release_r == 0); // during create, no async data ops should have happened |
7c673cae FG |
13071 | } |
13072 | goto out; | |
13073 | } | |
13074 | } | |
13075 | if (*fhp == NULL) { | |
13076 | r = _open(in->get(), flags, mode, fhp, perms); | |
13077 | if (r < 0) | |
13078 | goto out; | |
13079 | } | |
13080 | } | |
13081 | ||
13082 | out: | |
13083 | if (*fhp) { | |
13084 | ll_unclosed_fh_set.insert(*fhp); | |
13085 | } | |
13086 | ||
13087 | ino_t ino = 0; | |
13088 | if (r >= 0) { | |
13089 | Inode *inode = in->get(); | |
13090 | if (use_faked_inos()) | |
13091 | ino = inode->faked_ino; | |
13092 | else | |
13093 | ino = inode->ino; | |
13094 | } | |
13095 | ||
13096 | tout(cct) << (unsigned long)*fhp << std::endl; | |
13097 | tout(cct) << ino << std::endl; | |
1adf2230 | 13098 | ldout(cct, 8) << "_ll_create " << vparent << " " << name << " 0" << oct << |
7c673cae FG |
13099 | mode << dec << " " << ceph_flags_sys2wire(flags) << " = " << r << " (" << |
13100 | *fhp << " " << hex << ino << dec << ")" << dendl; | |
13101 | ||
13102 | return r; | |
13103 | } | |
13104 | ||
13105 | int Client::ll_create(Inode *parent, const char *name, mode_t mode, | |
13106 | int flags, struct stat *attr, Inode **outp, Fh **fhp, | |
13107 | const UserPerm& perms) | |
13108 | { | |
11fdf7f2 | 13109 | std::lock_guard lock(client_lock); |
7c673cae FG |
13110 | InodeRef in; |
13111 | ||
181888fb FG |
13112 | if (unmounting) |
13113 | return -ENOTCONN; | |
13114 | ||
7c673cae FG |
13115 | int r = _ll_create(parent, name, mode, flags, &in, CEPH_STAT_CAP_INODE_ALL, |
13116 | fhp, perms); | |
13117 | if (r >= 0) { | |
11fdf7f2 | 13118 | ceph_assert(in); |
7c673cae FG |
13119 | |
13120 | // passing an Inode in outp requires an additional ref | |
13121 | if (outp) { | |
13122 | _ll_get(in.get()); | |
13123 | *outp = in.get(); | |
13124 | } | |
13125 | fill_stat(in, attr); | |
13126 | } else { | |
13127 | attr->st_ino = 0; | |
13128 | } | |
13129 | ||
13130 | return r; | |
13131 | } | |
13132 | ||
13133 | int Client::ll_createx(Inode *parent, const char *name, mode_t mode, | |
13134 | int oflags, Inode **outp, Fh **fhp, | |
13135 | struct ceph_statx *stx, unsigned want, unsigned lflags, | |
13136 | const UserPerm& perms) | |
13137 | { | |
13138 | unsigned caps = statx_to_mask(lflags, want); | |
11fdf7f2 | 13139 | std::lock_guard lock(client_lock); |
7c673cae FG |
13140 | InodeRef in; |
13141 | ||
181888fb FG |
13142 | if (unmounting) |
13143 | return -ENOTCONN; | |
7c673cae FG |
13144 | |
13145 | int r = _ll_create(parent, name, mode, oflags, &in, caps, fhp, perms); | |
13146 | if (r >= 0) { | |
11fdf7f2 | 13147 | ceph_assert(in); |
7c673cae FG |
13148 | |
13149 | // passing an Inode in outp requires an additional ref | |
13150 | if (outp) { | |
13151 | _ll_get(in.get()); | |
13152 | *outp = in.get(); | |
13153 | } | |
13154 | fill_statx(in, caps, stx); | |
13155 | } else { | |
13156 | stx->stx_ino = 0; | |
13157 | stx->stx_mask = 0; | |
13158 | } | |
13159 | ||
13160 | return r; | |
13161 | } | |
13162 | ||
13163 | loff_t Client::ll_lseek(Fh *fh, loff_t offset, int whence) | |
13164 | { | |
11fdf7f2 | 13165 | std::lock_guard lock(client_lock); |
7c673cae FG |
13166 | tout(cct) << "ll_lseek" << std::endl; |
13167 | tout(cct) << offset << std::endl; | |
13168 | tout(cct) << whence << std::endl; | |
13169 | ||
181888fb FG |
13170 | if (unmounting) |
13171 | return -ENOTCONN; | |
13172 | ||
7c673cae FG |
13173 | return _lseek(fh, offset, whence); |
13174 | } | |
13175 | ||
13176 | int Client::ll_read(Fh *fh, loff_t off, loff_t len, bufferlist *bl) | |
13177 | { | |
11fdf7f2 | 13178 | std::lock_guard lock(client_lock); |
7c673cae FG |
13179 | ldout(cct, 3) << "ll_read " << fh << " " << fh->inode->ino << " " << " " << off << "~" << len << dendl; |
13180 | tout(cct) << "ll_read" << std::endl; | |
13181 | tout(cct) << (unsigned long)fh << std::endl; | |
13182 | tout(cct) << off << std::endl; | |
13183 | tout(cct) << len << std::endl; | |
13184 | ||
181888fb FG |
13185 | if (unmounting) |
13186 | return -ENOTCONN; | |
13187 | ||
11fdf7f2 TL |
13188 | /* We can't return bytes written larger than INT_MAX, clamp len to that */ |
13189 | len = std::min(len, (loff_t)INT_MAX); | |
7c673cae FG |
13190 | return _read(fh, off, len, bl); |
13191 | } | |
13192 | ||
13193 | int Client::ll_read_block(Inode *in, uint64_t blockid, | |
13194 | char *buf, | |
13195 | uint64_t offset, | |
13196 | uint64_t length, | |
13197 | file_layout_t* layout) | |
13198 | { | |
11fdf7f2 | 13199 | std::lock_guard lock(client_lock); |
181888fb FG |
13200 | |
13201 | if (unmounting) | |
13202 | return -ENOTCONN; | |
13203 | ||
b32b8144 | 13204 | vinodeno_t vino = _get_vino(in); |
7c673cae FG |
13205 | object_t oid = file_object_t(vino.ino, blockid); |
13206 | C_SaferCond onfinish; | |
13207 | bufferlist bl; | |
13208 | ||
13209 | objecter->read(oid, | |
13210 | object_locator_t(layout->pool_id), | |
13211 | offset, | |
13212 | length, | |
13213 | vino.snapid, | |
13214 | &bl, | |
13215 | CEPH_OSD_FLAG_READ, | |
13216 | &onfinish); | |
13217 | ||
13218 | client_lock.Unlock(); | |
13219 | int r = onfinish.wait(); | |
13220 | client_lock.Lock(); | |
13221 | ||
13222 | if (r >= 0) { | |
13223 | bl.copy(0, bl.length(), buf); | |
13224 | r = bl.length(); | |
13225 | } | |
13226 | ||
13227 | return r; | |
13228 | } | |
13229 | ||
13230 | /* It appears that the OSD doesn't return success unless the entire | |
13231 | buffer was written, return the write length on success. */ | |
13232 | ||
13233 | int Client::ll_write_block(Inode *in, uint64_t blockid, | |
13234 | char* buf, uint64_t offset, | |
13235 | uint64_t length, file_layout_t* layout, | |
13236 | uint64_t snapseq, uint32_t sync) | |
13237 | { | |
7c673cae | 13238 | vinodeno_t vino = ll_get_vino(in); |
7c673cae | 13239 | int r = 0; |
11fdf7f2 TL |
13240 | std::unique_ptr<C_SaferCond> onsafe = nullptr; |
13241 | ||
7c673cae FG |
13242 | if (length == 0) { |
13243 | return -EINVAL; | |
13244 | } | |
13245 | if (true || sync) { | |
13246 | /* if write is stable, the epilogue is waiting on | |
13247 | * flock */ | |
11fdf7f2 | 13248 | onsafe.reset(new C_SaferCond("Client::ll_write_block flock")); |
7c673cae FG |
13249 | } |
13250 | object_t oid = file_object_t(vino.ino, blockid); | |
13251 | SnapContext fakesnap; | |
11fdf7f2 TL |
13252 | ceph::bufferlist bl; |
13253 | if (length > 0) { | |
13254 | bl.push_back(buffer::copy(buf, length)); | |
13255 | } | |
7c673cae FG |
13256 | |
13257 | ldout(cct, 1) << "ll_block_write for " << vino.ino << "." << blockid | |
13258 | << dendl; | |
13259 | ||
13260 | fakesnap.seq = snapseq; | |
13261 | ||
13262 | /* lock just in time */ | |
13263 | client_lock.Lock(); | |
181888fb FG |
13264 | if (unmounting) { |
13265 | client_lock.Unlock(); | |
181888fb FG |
13266 | return -ENOTCONN; |
13267 | } | |
7c673cae FG |
13268 | |
13269 | objecter->write(oid, | |
13270 | object_locator_t(layout->pool_id), | |
13271 | offset, | |
13272 | length, | |
13273 | fakesnap, | |
13274 | bl, | |
13275 | ceph::real_clock::now(), | |
13276 | 0, | |
11fdf7f2 | 13277 | onsafe.get()); |
7c673cae FG |
13278 | |
13279 | client_lock.Unlock(); | |
11fdf7f2 TL |
13280 | if (nullptr != onsafe) { |
13281 | r = onsafe->wait(); | |
7c673cae FG |
13282 | } |
13283 | ||
13284 | if (r < 0) { | |
13285 | return r; | |
13286 | } else { | |
13287 | return length; | |
13288 | } | |
13289 | } | |
13290 | ||
13291 | int Client::ll_commit_blocks(Inode *in, | |
13292 | uint64_t offset, | |
13293 | uint64_t length) | |
13294 | { | |
11fdf7f2 | 13295 | std::lock_guard lock(client_lock); |
7c673cae FG |
13296 | /* |
13297 | BarrierContext *bctx; | |
b32b8144 | 13298 | vinodeno_t vino = _get_vino(in); |
7c673cae FG |
13299 | uint64_t ino = vino.ino; |
13300 | ||
13301 | ldout(cct, 1) << "ll_commit_blocks for " << vino.ino << " from " | |
13302 | << offset << " to " << length << dendl; | |
13303 | ||
13304 | if (length == 0) { | |
13305 | return -EINVAL; | |
13306 | } | |
13307 | ||
13308 | map<uint64_t, BarrierContext*>::iterator p = barriers.find(ino); | |
13309 | if (p != barriers.end()) { | |
13310 | barrier_interval civ(offset, offset + length); | |
13311 | p->second->commit_barrier(civ); | |
13312 | } | |
13313 | */ | |
13314 | return 0; | |
13315 | } | |
13316 | ||
13317 | int Client::ll_write(Fh *fh, loff_t off, loff_t len, const char *data) | |
13318 | { | |
11fdf7f2 | 13319 | std::lock_guard lock(client_lock); |
7c673cae FG |
13320 | ldout(cct, 3) << "ll_write " << fh << " " << fh->inode->ino << " " << off << |
13321 | "~" << len << dendl; | |
13322 | tout(cct) << "ll_write" << std::endl; | |
13323 | tout(cct) << (unsigned long)fh << std::endl; | |
13324 | tout(cct) << off << std::endl; | |
13325 | tout(cct) << len << std::endl; | |
13326 | ||
181888fb FG |
13327 | if (unmounting) |
13328 | return -ENOTCONN; | |
13329 | ||
11fdf7f2 TL |
13330 | /* We can't return bytes written larger than INT_MAX, clamp len to that */ |
13331 | len = std::min(len, (loff_t)INT_MAX); | |
7c673cae FG |
13332 | int r = _write(fh, off, len, data, NULL, 0); |
13333 | ldout(cct, 3) << "ll_write " << fh << " " << off << "~" << len << " = " << r | |
13334 | << dendl; | |
13335 | return r; | |
13336 | } | |
13337 | ||
11fdf7f2 TL |
13338 | int64_t Client::ll_writev(struct Fh *fh, const struct iovec *iov, int iovcnt, int64_t off) |
13339 | { | |
13340 | std::lock_guard lock(client_lock); | |
13341 | if (unmounting) | |
13342 | return -ENOTCONN; | |
13343 | return _preadv_pwritev_locked(fh, iov, iovcnt, off, true, false); | |
13344 | } | |
13345 | ||
13346 | int64_t Client::ll_readv(struct Fh *fh, const struct iovec *iov, int iovcnt, int64_t off) | |
13347 | { | |
13348 | std::lock_guard lock(client_lock); | |
13349 | if (unmounting) | |
13350 | return -ENOTCONN; | |
13351 | return _preadv_pwritev_locked(fh, iov, iovcnt, off, false, false); | |
13352 | } | |
13353 | ||
7c673cae FG |
13354 | int Client::ll_flush(Fh *fh) |
13355 | { | |
11fdf7f2 | 13356 | std::lock_guard lock(client_lock); |
7c673cae FG |
13357 | ldout(cct, 3) << "ll_flush " << fh << " " << fh->inode->ino << " " << dendl; |
13358 | tout(cct) << "ll_flush" << std::endl; | |
13359 | tout(cct) << (unsigned long)fh << std::endl; | |
13360 | ||
181888fb FG |
13361 | if (unmounting) |
13362 | return -ENOTCONN; | |
13363 | ||
7c673cae FG |
13364 | return _flush(fh); |
13365 | } | |
13366 | ||
13367 | int Client::ll_fsync(Fh *fh, bool syncdataonly) | |
13368 | { | |
11fdf7f2 | 13369 | std::lock_guard lock(client_lock); |
7c673cae FG |
13370 | ldout(cct, 3) << "ll_fsync " << fh << " " << fh->inode->ino << " " << dendl; |
13371 | tout(cct) << "ll_fsync" << std::endl; | |
13372 | tout(cct) << (unsigned long)fh << std::endl; | |
13373 | ||
181888fb FG |
13374 | if (unmounting) |
13375 | return -ENOTCONN; | |
13376 | ||
7c673cae FG |
13377 | int r = _fsync(fh, syncdataonly); |
13378 | if (r) { | |
13379 | // If we're returning an error, clear it from the FH | |
13380 | fh->take_async_err(); | |
13381 | } | |
13382 | return r; | |
13383 | } | |
13384 | ||
28e407b8 AA |
13385 | int Client::ll_sync_inode(Inode *in, bool syncdataonly) |
13386 | { | |
11fdf7f2 | 13387 | std::lock_guard lock(client_lock); |
28e407b8 AA |
13388 | ldout(cct, 3) << "ll_sync_inode " << *in << " " << dendl; |
13389 | tout(cct) << "ll_sync_inode" << std::endl; | |
13390 | tout(cct) << (unsigned long)in << std::endl; | |
13391 | ||
13392 | if (unmounting) | |
13393 | return -ENOTCONN; | |
13394 | ||
13395 | return _fsync(in, syncdataonly); | |
13396 | } | |
13397 | ||
7c673cae FG |
13398 | #ifdef FALLOC_FL_PUNCH_HOLE |
13399 | ||
13400 | int Client::_fallocate(Fh *fh, int mode, int64_t offset, int64_t length) | |
13401 | { | |
13402 | if (offset < 0 || length <= 0) | |
13403 | return -EINVAL; | |
13404 | ||
13405 | if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE)) | |
13406 | return -EOPNOTSUPP; | |
13407 | ||
13408 | if ((mode & FALLOC_FL_PUNCH_HOLE) && !(mode & FALLOC_FL_KEEP_SIZE)) | |
13409 | return -EOPNOTSUPP; | |
13410 | ||
13411 | Inode *in = fh->inode.get(); | |
13412 | ||
13413 | if (objecter->osdmap_pool_full(in->layout.pool_id) && | |
13414 | !(mode & FALLOC_FL_PUNCH_HOLE)) { | |
13415 | return -ENOSPC; | |
13416 | } | |
13417 | ||
13418 | if (in->snapid != CEPH_NOSNAP) | |
13419 | return -EROFS; | |
13420 | ||
13421 | if ((fh->mode & CEPH_FILE_MODE_WR) == 0) | |
13422 | return -EBADF; | |
13423 | ||
13424 | uint64_t size = offset + length; | |
13425 | if (!(mode & (FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE)) && | |
13426 | size > in->size && | |
11fdf7f2 | 13427 | is_quota_bytes_exceeded(in, size - in->size, fh->actor_perms)) { |
7c673cae FG |
13428 | return -EDQUOT; |
13429 | } | |
13430 | ||
13431 | int have; | |
13432 | int r = get_caps(in, CEPH_CAP_FILE_WR, CEPH_CAP_FILE_BUFFER, &have, -1); | |
13433 | if (r < 0) | |
13434 | return r; | |
13435 | ||
11fdf7f2 | 13436 | std::unique_ptr<C_SaferCond> onuninline = nullptr; |
7c673cae FG |
13437 | if (mode & FALLOC_FL_PUNCH_HOLE) { |
13438 | if (in->inline_version < CEPH_INLINE_NONE && | |
13439 | (have & CEPH_CAP_FILE_BUFFER)) { | |
13440 | bufferlist bl; | |
13441 | int len = in->inline_data.length(); | |
13442 | if (offset < len) { | |
13443 | if (offset > 0) | |
13444 | in->inline_data.copy(0, offset, bl); | |
13445 | int size = length; | |
13446 | if (offset + size > len) | |
13447 | size = len - offset; | |
13448 | if (size > 0) | |
13449 | bl.append_zero(size); | |
13450 | if (offset + size < len) | |
13451 | in->inline_data.copy(offset + size, len - offset - size, bl); | |
13452 | in->inline_data = bl; | |
13453 | in->inline_version++; | |
13454 | } | |
91327a77 | 13455 | in->mtime = in->ctime = ceph_clock_now(); |
7c673cae | 13456 | in->change_attr++; |
28e407b8 | 13457 | in->mark_caps_dirty(CEPH_CAP_FILE_WR); |
7c673cae FG |
13458 | } else { |
13459 | if (in->inline_version < CEPH_INLINE_NONE) { | |
11fdf7f2 TL |
13460 | onuninline.reset(new C_SaferCond("Client::_fallocate_uninline_data flock")); |
13461 | uninline_data(in, onuninline.get()); | |
7c673cae FG |
13462 | } |
13463 | ||
11fdf7f2 | 13464 | C_SaferCond onfinish("Client::_punch_hole flock"); |
7c673cae FG |
13465 | |
13466 | unsafe_sync_write++; | |
13467 | get_cap_ref(in, CEPH_CAP_FILE_BUFFER); | |
13468 | ||
13469 | _invalidate_inode_cache(in, offset, length); | |
13470 | filer->zero(in->ino, &in->layout, | |
13471 | in->snaprealm->get_snap_context(), | |
13472 | offset, length, | |
13473 | ceph::real_clock::now(), | |
11fdf7f2 | 13474 | 0, true, &onfinish); |
91327a77 | 13475 | in->mtime = in->ctime = ceph_clock_now(); |
7c673cae | 13476 | in->change_attr++; |
28e407b8 | 13477 | in->mark_caps_dirty(CEPH_CAP_FILE_WR); |
7c673cae FG |
13478 | |
13479 | client_lock.Unlock(); | |
11fdf7f2 | 13480 | onfinish.wait(); |
7c673cae FG |
13481 | client_lock.Lock(); |
13482 | _sync_write_commit(in); | |
13483 | } | |
13484 | } else if (!(mode & FALLOC_FL_KEEP_SIZE)) { | |
13485 | uint64_t size = offset + length; | |
13486 | if (size > in->size) { | |
13487 | in->size = size; | |
91327a77 | 13488 | in->mtime = in->ctime = ceph_clock_now(); |
7c673cae | 13489 | in->change_attr++; |
28e407b8 | 13490 | in->mark_caps_dirty(CEPH_CAP_FILE_WR); |
7c673cae | 13491 | |
11fdf7f2 | 13492 | if (is_quota_bytes_approaching(in, fh->actor_perms)) { |
7c673cae | 13493 | check_caps(in, CHECK_CAPS_NODELAY); |
31f18b77 FG |
13494 | } else if (is_max_size_approaching(in)) { |
13495 | check_caps(in, 0); | |
7c673cae FG |
13496 | } |
13497 | } | |
13498 | } | |
13499 | ||
11fdf7f2 | 13500 | if (nullptr != onuninline) { |
7c673cae | 13501 | client_lock.Unlock(); |
11fdf7f2 | 13502 | int ret = onuninline->wait(); |
7c673cae FG |
13503 | client_lock.Lock(); |
13504 | ||
11fdf7f2 | 13505 | if (ret >= 0 || ret == -ECANCELED) { |
7c673cae FG |
13506 | in->inline_data.clear(); |
13507 | in->inline_version = CEPH_INLINE_NONE; | |
28e407b8 | 13508 | in->mark_caps_dirty(CEPH_CAP_FILE_WR); |
7c673cae FG |
13509 | check_caps(in, 0); |
13510 | } else | |
11fdf7f2 | 13511 | r = ret; |
7c673cae FG |
13512 | } |
13513 | ||
13514 | put_cap_ref(in, CEPH_CAP_FILE_WR); | |
13515 | return r; | |
13516 | } | |
13517 | #else | |
13518 | ||
13519 | int Client::_fallocate(Fh *fh, int mode, int64_t offset, int64_t length) | |
13520 | { | |
13521 | return -EOPNOTSUPP; | |
13522 | } | |
13523 | ||
13524 | #endif | |
13525 | ||
13526 | ||
11fdf7f2 | 13527 | int Client::ll_fallocate(Fh *fh, int mode, int64_t offset, int64_t length) |
7c673cae | 13528 | { |
11fdf7f2 TL |
13529 | std::lock_guard lock(client_lock); |
13530 | ldout(cct, 3) << __func__ << " " << fh << " " << fh->inode->ino << " " << dendl; | |
13531 | tout(cct) << __func__ << " " << mode << " " << offset << " " << length << std::endl; | |
7c673cae FG |
13532 | tout(cct) << (unsigned long)fh << std::endl; |
13533 | ||
181888fb FG |
13534 | if (unmounting) |
13535 | return -ENOTCONN; | |
13536 | ||
7c673cae FG |
13537 | return _fallocate(fh, mode, offset, length); |
13538 | } | |
13539 | ||
13540 | int Client::fallocate(int fd, int mode, loff_t offset, loff_t length) | |
13541 | { | |
11fdf7f2 TL |
13542 | std::lock_guard lock(client_lock); |
13543 | tout(cct) << __func__ << " " << " " << fd << mode << " " << offset << " " << length << std::endl; | |
7c673cae | 13544 | |
181888fb FG |
13545 | if (unmounting) |
13546 | return -ENOTCONN; | |
13547 | ||
7c673cae FG |
13548 | Fh *fh = get_filehandle(fd); |
13549 | if (!fh) | |
13550 | return -EBADF; | |
13551 | #if defined(__linux__) && defined(O_PATH) | |
13552 | if (fh->flags & O_PATH) | |
13553 | return -EBADF; | |
13554 | #endif | |
13555 | return _fallocate(fh, mode, offset, length); | |
13556 | } | |
13557 | ||
13558 | int Client::ll_release(Fh *fh) | |
13559 | { | |
11fdf7f2 | 13560 | std::lock_guard lock(client_lock); |
91327a77 AA |
13561 | |
13562 | if (unmounting) | |
13563 | return -ENOTCONN; | |
13564 | ||
11fdf7f2 | 13565 | ldout(cct, 3) << __func__ << " (fh)" << fh << " " << fh->inode->ino << " " << |
7c673cae | 13566 | dendl; |
11fdf7f2 | 13567 | tout(cct) << __func__ << " (fh)" << std::endl; |
7c673cae FG |
13568 | tout(cct) << (unsigned long)fh << std::endl; |
13569 | ||
13570 | if (ll_unclosed_fh_set.count(fh)) | |
13571 | ll_unclosed_fh_set.erase(fh); | |
13572 | return _release_fh(fh); | |
13573 | } | |
13574 | ||
13575 | int Client::ll_getlk(Fh *fh, struct flock *fl, uint64_t owner) | |
13576 | { | |
11fdf7f2 | 13577 | std::lock_guard lock(client_lock); |
7c673cae FG |
13578 | |
13579 | ldout(cct, 3) << "ll_getlk (fh)" << fh << " " << fh->inode->ino << dendl; | |
13580 | tout(cct) << "ll_getk (fh)" << (unsigned long)fh << std::endl; | |
13581 | ||
181888fb FG |
13582 | if (unmounting) |
13583 | return -ENOTCONN; | |
13584 | ||
7c673cae FG |
13585 | return _getlk(fh, fl, owner); |
13586 | } | |
13587 | ||
13588 | int Client::ll_setlk(Fh *fh, struct flock *fl, uint64_t owner, int sleep) | |
13589 | { | |
11fdf7f2 | 13590 | std::lock_guard lock(client_lock); |
7c673cae | 13591 | |
11fdf7f2 TL |
13592 | ldout(cct, 3) << __func__ << " (fh) " << fh << " " << fh->inode->ino << dendl; |
13593 | tout(cct) << __func__ << " (fh)" << (unsigned long)fh << std::endl; | |
7c673cae | 13594 | |
181888fb FG |
13595 | if (unmounting) |
13596 | return -ENOTCONN; | |
13597 | ||
7c673cae FG |
13598 | return _setlk(fh, fl, owner, sleep); |
13599 | } | |
13600 | ||
13601 | int Client::ll_flock(Fh *fh, int cmd, uint64_t owner) | |
13602 | { | |
11fdf7f2 | 13603 | std::lock_guard lock(client_lock); |
7c673cae | 13604 | |
11fdf7f2 TL |
13605 | ldout(cct, 3) << __func__ << " (fh) " << fh << " " << fh->inode->ino << dendl; |
13606 | tout(cct) << __func__ << " (fh)" << (unsigned long)fh << std::endl; | |
7c673cae | 13607 | |
181888fb FG |
13608 | if (unmounting) |
13609 | return -ENOTCONN; | |
13610 | ||
7c673cae FG |
13611 | return _flock(fh, cmd, owner); |
13612 | } | |
13613 | ||
b32b8144 FG |
13614 | int Client::set_deleg_timeout(uint32_t timeout) |
13615 | { | |
11fdf7f2 | 13616 | std::lock_guard lock(client_lock); |
b32b8144 FG |
13617 | |
13618 | /* | |
13619 | * The whole point is to prevent blacklisting so we must time out the | |
13620 | * delegation before the session autoclose timeout kicks in. | |
13621 | */ | |
13622 | if (timeout >= mdsmap->get_session_autoclose()) | |
13623 | return -EINVAL; | |
13624 | ||
13625 | deleg_timeout = timeout; | |
13626 | return 0; | |
13627 | } | |
13628 | ||
13629 | int Client::ll_delegation(Fh *fh, unsigned cmd, ceph_deleg_cb_t cb, void *priv) | |
13630 | { | |
13631 | int ret = -EINVAL; | |
13632 | ||
11fdf7f2 | 13633 | std::lock_guard lock(client_lock); |
b32b8144 FG |
13634 | |
13635 | if (!mounted) | |
13636 | return -ENOTCONN; | |
13637 | ||
13638 | Inode *inode = fh->inode.get(); | |
13639 | ||
13640 | switch(cmd) { | |
13641 | case CEPH_DELEGATION_NONE: | |
13642 | inode->unset_deleg(fh); | |
13643 | ret = 0; | |
13644 | break; | |
13645 | default: | |
13646 | try { | |
13647 | ret = inode->set_deleg(fh, cmd, cb, priv); | |
11fdf7f2 | 13648 | } catch (std::bad_alloc&) { |
b32b8144 FG |
13649 | ret = -ENOMEM; |
13650 | } | |
13651 | break; | |
13652 | } | |
13653 | return ret; | |
13654 | } | |
13655 | ||
7c673cae FG |
13656 | class C_Client_RequestInterrupt : public Context { |
13657 | private: | |
13658 | Client *client; | |
13659 | MetaRequest *req; | |
13660 | public: | |
13661 | C_Client_RequestInterrupt(Client *c, MetaRequest *r) : client(c), req(r) { | |
13662 | req->get(); | |
13663 | } | |
13664 | void finish(int r) override { | |
11fdf7f2 TL |
13665 | std::lock_guard l(client->client_lock); |
13666 | ceph_assert(req->head.op == CEPH_MDS_OP_SETFILELOCK); | |
7c673cae FG |
13667 | client->_interrupt_filelock(req); |
13668 | client->put_request(req); | |
13669 | } | |
13670 | }; | |
13671 | ||
13672 | void Client::ll_interrupt(void *d) | |
13673 | { | |
13674 | MetaRequest *req = static_cast<MetaRequest*>(d); | |
11fdf7f2 TL |
13675 | ldout(cct, 3) << __func__ << " tid " << req->get_tid() << dendl; |
13676 | tout(cct) << __func__ << " tid " << req->get_tid() << std::endl; | |
7c673cae FG |
13677 | interrupt_finisher.queue(new C_Client_RequestInterrupt(this, req)); |
13678 | } | |
13679 | ||
13680 | // ========================================= | |
13681 | // layout | |
13682 | ||
13683 | // expose file layouts | |
13684 | ||
13685 | int Client::describe_layout(const char *relpath, file_layout_t *lp, | |
13686 | const UserPerm& perms) | |
13687 | { | |
11fdf7f2 | 13688 | std::lock_guard lock(client_lock); |
7c673cae | 13689 | |
181888fb FG |
13690 | if (unmounting) |
13691 | return -ENOTCONN; | |
13692 | ||
7c673cae FG |
13693 | filepath path(relpath); |
13694 | InodeRef in; | |
13695 | int r = path_walk(path, &in, perms); | |
13696 | if (r < 0) | |
13697 | return r; | |
13698 | ||
13699 | *lp = in->layout; | |
13700 | ||
11fdf7f2 | 13701 | ldout(cct, 3) << __func__ << "(" << relpath << ") = 0" << dendl; |
7c673cae FG |
13702 | return 0; |
13703 | } | |
13704 | ||
13705 | int Client::fdescribe_layout(int fd, file_layout_t *lp) | |
13706 | { | |
11fdf7f2 | 13707 | std::lock_guard lock(client_lock); |
7c673cae | 13708 | |
181888fb FG |
13709 | if (unmounting) |
13710 | return -ENOTCONN; | |
13711 | ||
7c673cae FG |
13712 | Fh *f = get_filehandle(fd); |
13713 | if (!f) | |
13714 | return -EBADF; | |
13715 | Inode *in = f->inode.get(); | |
13716 | ||
13717 | *lp = in->layout; | |
13718 | ||
11fdf7f2 | 13719 | ldout(cct, 3) << __func__ << "(" << fd << ") = 0" << dendl; |
7c673cae FG |
13720 | return 0; |
13721 | } | |
13722 | ||
d2e6a577 FG |
13723 | int64_t Client::get_default_pool_id() |
13724 | { | |
11fdf7f2 | 13725 | std::lock_guard lock(client_lock); |
181888fb FG |
13726 | |
13727 | if (unmounting) | |
13728 | return -ENOTCONN; | |
13729 | ||
d2e6a577 FG |
13730 | /* first data pool is the default */ |
13731 | return mdsmap->get_first_data_pool(); | |
13732 | } | |
7c673cae FG |
13733 | |
13734 | // expose osdmap | |
13735 | ||
13736 | int64_t Client::get_pool_id(const char *pool_name) | |
13737 | { | |
11fdf7f2 | 13738 | std::lock_guard lock(client_lock); |
181888fb FG |
13739 | |
13740 | if (unmounting) | |
13741 | return -ENOTCONN; | |
13742 | ||
7c673cae FG |
13743 | return objecter->with_osdmap(std::mem_fn(&OSDMap::lookup_pg_pool_name), |
13744 | pool_name); | |
13745 | } | |
13746 | ||
13747 | string Client::get_pool_name(int64_t pool) | |
13748 | { | |
11fdf7f2 | 13749 | std::lock_guard lock(client_lock); |
181888fb FG |
13750 | |
13751 | if (unmounting) | |
13752 | return string(); | |
13753 | ||
7c673cae FG |
13754 | return objecter->with_osdmap([pool](const OSDMap& o) { |
13755 | return o.have_pg_pool(pool) ? o.get_pool_name(pool) : string(); | |
13756 | }); | |
13757 | } | |
13758 | ||
13759 | int Client::get_pool_replication(int64_t pool) | |
13760 | { | |
11fdf7f2 | 13761 | std::lock_guard lock(client_lock); |
181888fb FG |
13762 | |
13763 | if (unmounting) | |
13764 | return -ENOTCONN; | |
13765 | ||
7c673cae FG |
13766 | return objecter->with_osdmap([pool](const OSDMap& o) { |
13767 | return o.have_pg_pool(pool) ? o.get_pg_pool(pool)->get_size() : -ENOENT; | |
13768 | }); | |
13769 | } | |
13770 | ||
13771 | int Client::get_file_extent_osds(int fd, loff_t off, loff_t *len, vector<int>& osds) | |
13772 | { | |
11fdf7f2 | 13773 | std::lock_guard lock(client_lock); |
7c673cae | 13774 | |
181888fb FG |
13775 | if (unmounting) |
13776 | return -ENOTCONN; | |
13777 | ||
7c673cae FG |
13778 | Fh *f = get_filehandle(fd); |
13779 | if (!f) | |
13780 | return -EBADF; | |
13781 | Inode *in = f->inode.get(); | |
13782 | ||
13783 | vector<ObjectExtent> extents; | |
13784 | Striper::file_to_extents(cct, in->ino, &in->layout, off, 1, in->truncate_size, extents); | |
11fdf7f2 | 13785 | ceph_assert(extents.size() == 1); |
7c673cae FG |
13786 | |
13787 | objecter->with_osdmap([&](const OSDMap& o) { | |
13788 | pg_t pg = o.object_locator_to_pg(extents[0].oid, extents[0].oloc); | |
13789 | o.pg_to_acting_osds(pg, osds); | |
13790 | }); | |
13791 | ||
13792 | if (osds.empty()) | |
13793 | return -EINVAL; | |
13794 | ||
13795 | /* | |
13796 | * Return the remainder of the extent (stripe unit) | |
13797 | * | |
13798 | * If length = 1 is passed to Striper::file_to_extents we get a single | |
13799 | * extent back, but its length is one so we still need to compute the length | |
13800 | * to the end of the stripe unit. | |
13801 | * | |
13802 | * If length = su then we may get 1 or 2 objects back in the extents vector | |
13803 | * which would have to be examined. Even then, the offsets are local to the | |
13804 | * object, so matching up to the file offset is extra work. | |
13805 | * | |
13806 | * It seems simpler to stick with length = 1 and manually compute the | |
13807 | * remainder. | |
13808 | */ | |
13809 | if (len) { | |
13810 | uint64_t su = in->layout.stripe_unit; | |
13811 | *len = su - (off % su); | |
13812 | } | |
13813 | ||
13814 | return 0; | |
13815 | } | |
13816 | ||
13817 | int Client::get_osd_crush_location(int id, vector<pair<string, string> >& path) | |
13818 | { | |
11fdf7f2 | 13819 | std::lock_guard lock(client_lock); |
181888fb FG |
13820 | |
13821 | if (unmounting) | |
13822 | return -ENOTCONN; | |
13823 | ||
7c673cae FG |
13824 | if (id < 0) |
13825 | return -EINVAL; | |
13826 | return objecter->with_osdmap([&](const OSDMap& o) { | |
13827 | return o.crush->get_full_location_ordered(id, path); | |
13828 | }); | |
13829 | } | |
13830 | ||
13831 | int Client::get_file_stripe_address(int fd, loff_t offset, | |
13832 | vector<entity_addr_t>& address) | |
13833 | { | |
11fdf7f2 | 13834 | std::lock_guard lock(client_lock); |
7c673cae | 13835 | |
181888fb FG |
13836 | if (unmounting) |
13837 | return -ENOTCONN; | |
13838 | ||
7c673cae FG |
13839 | Fh *f = get_filehandle(fd); |
13840 | if (!f) | |
13841 | return -EBADF; | |
13842 | Inode *in = f->inode.get(); | |
13843 | ||
13844 | // which object? | |
13845 | vector<ObjectExtent> extents; | |
13846 | Striper::file_to_extents(cct, in->ino, &in->layout, offset, 1, | |
13847 | in->truncate_size, extents); | |
11fdf7f2 | 13848 | ceph_assert(extents.size() == 1); |
7c673cae FG |
13849 | |
13850 | // now we have the object and its 'layout' | |
13851 | return objecter->with_osdmap([&](const OSDMap& o) { | |
13852 | pg_t pg = o.object_locator_to_pg(extents[0].oid, extents[0].oloc); | |
13853 | vector<int> osds; | |
13854 | o.pg_to_acting_osds(pg, osds); | |
13855 | if (osds.empty()) | |
13856 | return -EINVAL; | |
13857 | for (unsigned i = 0; i < osds.size(); i++) { | |
11fdf7f2 | 13858 | entity_addr_t addr = o.get_addrs(osds[i]).front(); |
7c673cae FG |
13859 | address.push_back(addr); |
13860 | } | |
13861 | return 0; | |
13862 | }); | |
13863 | } | |
13864 | ||
13865 | int Client::get_osd_addr(int osd, entity_addr_t& addr) | |
13866 | { | |
11fdf7f2 | 13867 | std::lock_guard lock(client_lock); |
181888fb FG |
13868 | |
13869 | if (unmounting) | |
13870 | return -ENOTCONN; | |
13871 | ||
7c673cae FG |
13872 | return objecter->with_osdmap([&](const OSDMap& o) { |
13873 | if (!o.exists(osd)) | |
13874 | return -ENOENT; | |
13875 | ||
11fdf7f2 | 13876 | addr = o.get_addrs(osd).front(); |
7c673cae FG |
13877 | return 0; |
13878 | }); | |
13879 | } | |
13880 | ||
13881 | int Client::enumerate_layout(int fd, vector<ObjectExtent>& result, | |
13882 | loff_t length, loff_t offset) | |
13883 | { | |
11fdf7f2 | 13884 | std::lock_guard lock(client_lock); |
7c673cae | 13885 | |
181888fb FG |
13886 | if (unmounting) |
13887 | return -ENOTCONN; | |
13888 | ||
7c673cae FG |
13889 | Fh *f = get_filehandle(fd); |
13890 | if (!f) | |
13891 | return -EBADF; | |
13892 | Inode *in = f->inode.get(); | |
13893 | ||
13894 | // map to a list of extents | |
13895 | Striper::file_to_extents(cct, in->ino, &in->layout, offset, length, in->truncate_size, result); | |
13896 | ||
11fdf7f2 | 13897 | ldout(cct, 3) << __func__ << "(" << fd << ", " << length << ", " << offset << ") = 0" << dendl; |
7c673cae FG |
13898 | return 0; |
13899 | } | |
13900 | ||
13901 | ||
b32b8144 | 13902 | /* find an osd with the same ip. -ENXIO if none. */ |
7c673cae FG |
13903 | int Client::get_local_osd() |
13904 | { | |
11fdf7f2 | 13905 | std::lock_guard lock(client_lock); |
181888fb FG |
13906 | |
13907 | if (unmounting) | |
13908 | return -ENOTCONN; | |
13909 | ||
7c673cae FG |
13910 | objecter->with_osdmap([this](const OSDMap& o) { |
13911 | if (o.get_epoch() != local_osd_epoch) { | |
11fdf7f2 | 13912 | local_osd = o.find_osd_on_ip(messenger->get_myaddrs().front()); |
7c673cae FG |
13913 | local_osd_epoch = o.get_epoch(); |
13914 | } | |
13915 | }); | |
13916 | return local_osd; | |
13917 | } | |
13918 | ||
13919 | ||
13920 | ||
13921 | ||
13922 | ||
13923 | ||
13924 | // =============================== | |
13925 | ||
13926 | void Client::ms_handle_connect(Connection *con) | |
13927 | { | |
11fdf7f2 | 13928 | ldout(cct, 10) << __func__ << " on " << con->get_peer_addr() << dendl; |
7c673cae FG |
13929 | } |
13930 | ||
13931 | bool Client::ms_handle_reset(Connection *con) | |
13932 | { | |
11fdf7f2 | 13933 | ldout(cct, 0) << __func__ << " on " << con->get_peer_addr() << dendl; |
7c673cae FG |
13934 | return false; |
13935 | } | |
13936 | ||
13937 | void Client::ms_handle_remote_reset(Connection *con) | |
13938 | { | |
11fdf7f2 TL |
13939 | ldout(cct, 0) << __func__ << " on " << con->get_peer_addr() << dendl; |
13940 | std::lock_guard l(client_lock); | |
7c673cae FG |
13941 | switch (con->get_peer_type()) { |
13942 | case CEPH_ENTITY_TYPE_MDS: | |
13943 | { | |
13944 | // kludge to figure out which mds this is; fixme with a Connection* state | |
13945 | mds_rank_t mds = MDS_RANK_NONE; | |
13946 | MetaSession *s = NULL; | |
11fdf7f2 TL |
13947 | for (auto &p : mds_sessions) { |
13948 | if (mdsmap->get_addrs(p.first) == con->get_peer_addrs()) { | |
13949 | mds = p.first; | |
13950 | s = &p.second; | |
7c673cae FG |
13951 | } |
13952 | } | |
13953 | if (mds >= 0) { | |
d2e6a577 | 13954 | assert (s != NULL); |
7c673cae FG |
13955 | switch (s->state) { |
13956 | case MetaSession::STATE_CLOSING: | |
13957 | ldout(cct, 1) << "reset from mds we were closing; we'll call that closed" << dendl; | |
13958 | _closed_mds_session(s); | |
13959 | break; | |
13960 | ||
13961 | case MetaSession::STATE_OPENING: | |
13962 | { | |
13963 | ldout(cct, 1) << "reset from mds we were opening; retrying" << dendl; | |
13964 | list<Context*> waiters; | |
13965 | waiters.swap(s->waiting_for_open); | |
13966 | _closed_mds_session(s); | |
13967 | MetaSession *news = _get_or_open_mds_session(mds); | |
13968 | news->waiting_for_open.swap(waiters); | |
13969 | } | |
13970 | break; | |
13971 | ||
13972 | case MetaSession::STATE_OPEN: | |
13973 | { | |
28e407b8 | 13974 | objecter->maybe_request_map(); /* to check if we are blacklisted */ |
11fdf7f2 | 13975 | const auto& conf = cct->_conf; |
7c673cae FG |
13976 | if (conf->client_reconnect_stale) { |
13977 | ldout(cct, 1) << "reset from mds we were open; close mds session for reconnect" << dendl; | |
13978 | _closed_mds_session(s); | |
13979 | } else { | |
13980 | ldout(cct, 1) << "reset from mds we were open; mark session as stale" << dendl; | |
13981 | s->state = MetaSession::STATE_STALE; | |
13982 | } | |
13983 | } | |
13984 | break; | |
13985 | ||
13986 | case MetaSession::STATE_NEW: | |
13987 | case MetaSession::STATE_CLOSED: | |
13988 | default: | |
13989 | break; | |
13990 | } | |
13991 | } | |
13992 | } | |
13993 | break; | |
13994 | } | |
13995 | } | |
13996 | ||
13997 | bool Client::ms_handle_refused(Connection *con) | |
13998 | { | |
11fdf7f2 | 13999 | ldout(cct, 1) << __func__ << " on " << con->get_peer_addr() << dendl; |
7c673cae FG |
14000 | return false; |
14001 | } | |
14002 | ||
11fdf7f2 | 14003 | bool Client::ms_get_authorizer(int dest_type, AuthAuthorizer **authorizer) |
7c673cae FG |
14004 | { |
14005 | if (dest_type == CEPH_ENTITY_TYPE_MON) | |
14006 | return true; | |
14007 | *authorizer = monclient->build_authorizer(dest_type); | |
14008 | return true; | |
14009 | } | |
14010 | ||
14011 | Inode *Client::get_quota_root(Inode *in, const UserPerm& perms) | |
14012 | { | |
11fdf7f2 TL |
14013 | Inode *quota_in = root_ancestor; |
14014 | SnapRealm *realm = in->snaprealm; | |
14015 | while (realm) { | |
14016 | ldout(cct, 10) << __func__ << " realm " << realm->ino << dendl; | |
14017 | if (realm->ino != in->ino) { | |
14018 | auto p = inode_map.find(vinodeno_t(realm->ino, CEPH_NOSNAP)); | |
14019 | if (p == inode_map.end()) | |
14020 | break; | |
7c673cae | 14021 | |
11fdf7f2 TL |
14022 | if (p->second->quota.is_enable()) { |
14023 | quota_in = p->second; | |
14024 | break; | |
7c673cae | 14025 | } |
7c673cae | 14026 | } |
11fdf7f2 | 14027 | realm = realm->pparent; |
7c673cae | 14028 | } |
11fdf7f2 TL |
14029 | ldout(cct, 10) << __func__ << " " << in->vino() << " -> " << quota_in->vino() << dendl; |
14030 | return quota_in; | |
7c673cae FG |
14031 | } |
14032 | ||
14033 | /** | |
14034 | * Traverse quota ancestors of the Inode, return true | |
14035 | * if any of them passes the passed function | |
14036 | */ | |
14037 | bool Client::check_quota_condition(Inode *in, const UserPerm& perms, | |
14038 | std::function<bool (const Inode &in)> test) | |
14039 | { | |
14040 | while (true) { | |
11fdf7f2 | 14041 | ceph_assert(in != NULL); |
7c673cae FG |
14042 | if (test(*in)) { |
14043 | return true; | |
14044 | } | |
14045 | ||
14046 | if (in == root_ancestor) { | |
14047 | // We're done traversing, drop out | |
14048 | return false; | |
14049 | } else { | |
14050 | // Continue up the tree | |
14051 | in = get_quota_root(in, perms); | |
14052 | } | |
14053 | } | |
14054 | ||
14055 | return false; | |
14056 | } | |
14057 | ||
14058 | bool Client::is_quota_files_exceeded(Inode *in, const UserPerm& perms) | |
14059 | { | |
14060 | return check_quota_condition(in, perms, | |
14061 | [](const Inode &in) { | |
14062 | return in.quota.max_files && in.rstat.rsize() >= in.quota.max_files; | |
14063 | }); | |
14064 | } | |
14065 | ||
14066 | bool Client::is_quota_bytes_exceeded(Inode *in, int64_t new_bytes, | |
11fdf7f2 | 14067 | const UserPerm& perms) |
7c673cae FG |
14068 | { |
14069 | return check_quota_condition(in, perms, | |
11fdf7f2 | 14070 | [&new_bytes](const Inode &in) { |
7c673cae FG |
14071 | return in.quota.max_bytes && (in.rstat.rbytes + new_bytes) |
14072 | > in.quota.max_bytes; | |
14073 | }); | |
14074 | } | |
14075 | ||
11fdf7f2 | 14076 | bool Client::is_quota_bytes_approaching(Inode *in, const UserPerm& perms) |
7c673cae | 14077 | { |
11fdf7f2 TL |
14078 | return check_quota_condition(in, perms, |
14079 | [](const Inode &in) { | |
14080 | if (in.quota.max_bytes) { | |
14081 | if (in.rstat.rbytes >= in.quota.max_bytes) { | |
14082 | return true; | |
14083 | } | |
14084 | ||
14085 | ceph_assert(in.size >= in.reported_size); | |
14086 | const uint64_t space = in.quota.max_bytes - in.rstat.rbytes; | |
14087 | const uint64_t size = in.size - in.reported_size; | |
14088 | return (space >> 4) < size; | |
14089 | } else { | |
14090 | return false; | |
14091 | } | |
14092 | }); | |
7c673cae FG |
14093 | } |
14094 | ||
14095 | enum { | |
14096 | POOL_CHECKED = 1, | |
14097 | POOL_CHECKING = 2, | |
14098 | POOL_READ = 4, | |
14099 | POOL_WRITE = 8, | |
14100 | }; | |
14101 | ||
14102 | int Client::check_pool_perm(Inode *in, int need) | |
14103 | { | |
14104 | if (!cct->_conf->client_check_pool_perm) | |
14105 | return 0; | |
14106 | ||
14107 | int64_t pool_id = in->layout.pool_id; | |
14108 | std::string pool_ns = in->layout.pool_ns; | |
14109 | std::pair<int64_t, std::string> perm_key(pool_id, pool_ns); | |
14110 | int have = 0; | |
14111 | while (true) { | |
14112 | auto it = pool_perms.find(perm_key); | |
14113 | if (it == pool_perms.end()) | |
14114 | break; | |
14115 | if (it->second == POOL_CHECKING) { | |
14116 | // avoid concurrent checkings | |
14117 | wait_on_list(waiting_for_pool_perm); | |
14118 | } else { | |
14119 | have = it->second; | |
11fdf7f2 | 14120 | ceph_assert(have & POOL_CHECKED); |
7c673cae FG |
14121 | break; |
14122 | } | |
14123 | } | |
14124 | ||
14125 | if (!have) { | |
14126 | if (in->snapid != CEPH_NOSNAP) { | |
14127 | // pool permission check needs to write to the first object. But for snapshot, | |
14128 | // head of the first object may have alread been deleted. To avoid creating | |
14129 | // orphan object, skip the check for now. | |
14130 | return 0; | |
14131 | } | |
14132 | ||
14133 | pool_perms[perm_key] = POOL_CHECKING; | |
14134 | ||
14135 | char oid_buf[32]; | |
14136 | snprintf(oid_buf, sizeof(oid_buf), "%llx.00000000", (unsigned long long)in->ino); | |
14137 | object_t oid = oid_buf; | |
14138 | ||
14139 | SnapContext nullsnapc; | |
14140 | ||
14141 | C_SaferCond rd_cond; | |
14142 | ObjectOperation rd_op; | |
14143 | rd_op.stat(NULL, (ceph::real_time*)nullptr, NULL); | |
14144 | ||
14145 | objecter->mutate(oid, OSDMap::file_to_object_locator(in->layout), rd_op, | |
14146 | nullsnapc, ceph::real_clock::now(), 0, &rd_cond); | |
14147 | ||
14148 | C_SaferCond wr_cond; | |
14149 | ObjectOperation wr_op; | |
14150 | wr_op.create(true); | |
14151 | ||
14152 | objecter->mutate(oid, OSDMap::file_to_object_locator(in->layout), wr_op, | |
14153 | nullsnapc, ceph::real_clock::now(), 0, &wr_cond); | |
14154 | ||
14155 | client_lock.Unlock(); | |
14156 | int rd_ret = rd_cond.wait(); | |
14157 | int wr_ret = wr_cond.wait(); | |
14158 | client_lock.Lock(); | |
14159 | ||
14160 | bool errored = false; | |
14161 | ||
14162 | if (rd_ret == 0 || rd_ret == -ENOENT) | |
14163 | have |= POOL_READ; | |
14164 | else if (rd_ret != -EPERM) { | |
11fdf7f2 | 14165 | ldout(cct, 10) << __func__ << " on pool " << pool_id << " ns " << pool_ns |
7c673cae FG |
14166 | << " rd_err = " << rd_ret << " wr_err = " << wr_ret << dendl; |
14167 | errored = true; | |
14168 | } | |
14169 | ||
14170 | if (wr_ret == 0 || wr_ret == -EEXIST) | |
14171 | have |= POOL_WRITE; | |
14172 | else if (wr_ret != -EPERM) { | |
11fdf7f2 | 14173 | ldout(cct, 10) << __func__ << " on pool " << pool_id << " ns " << pool_ns |
7c673cae FG |
14174 | << " rd_err = " << rd_ret << " wr_err = " << wr_ret << dendl; |
14175 | errored = true; | |
14176 | } | |
14177 | ||
14178 | if (errored) { | |
14179 | // Indeterminate: erase CHECKING state so that subsequent calls re-check. | |
14180 | // Raise EIO because actual error code might be misleading for | |
14181 | // userspace filesystem user. | |
14182 | pool_perms.erase(perm_key); | |
14183 | signal_cond_list(waiting_for_pool_perm); | |
14184 | return -EIO; | |
14185 | } | |
14186 | ||
14187 | pool_perms[perm_key] = have | POOL_CHECKED; | |
14188 | signal_cond_list(waiting_for_pool_perm); | |
14189 | } | |
14190 | ||
14191 | if ((need & CEPH_CAP_FILE_RD) && !(have & POOL_READ)) { | |
11fdf7f2 | 14192 | ldout(cct, 10) << __func__ << " on pool " << pool_id << " ns " << pool_ns |
7c673cae FG |
14193 | << " need " << ccap_string(need) << ", but no read perm" << dendl; |
14194 | return -EPERM; | |
14195 | } | |
14196 | if ((need & CEPH_CAP_FILE_WR) && !(have & POOL_WRITE)) { | |
11fdf7f2 | 14197 | ldout(cct, 10) << __func__ << " on pool " << pool_id << " ns " << pool_ns |
7c673cae FG |
14198 | << " need " << ccap_string(need) << ", but no write perm" << dendl; |
14199 | return -EPERM; | |
14200 | } | |
14201 | ||
14202 | return 0; | |
14203 | } | |
14204 | ||
14205 | int Client::_posix_acl_permission(Inode *in, const UserPerm& perms, unsigned want) | |
14206 | { | |
14207 | if (acl_type == POSIX_ACL) { | |
14208 | if (in->xattrs.count(ACL_EA_ACCESS)) { | |
14209 | const bufferptr& access_acl = in->xattrs[ACL_EA_ACCESS]; | |
14210 | ||
14211 | return posix_acl_permits(access_acl, in->uid, in->gid, perms, want); | |
14212 | } | |
14213 | } | |
14214 | return -EAGAIN; | |
14215 | } | |
14216 | ||
14217 | int Client::_posix_acl_chmod(Inode *in, mode_t mode, const UserPerm& perms) | |
14218 | { | |
14219 | if (acl_type == NO_ACL) | |
14220 | return 0; | |
14221 | ||
14222 | int r = _getattr(in, CEPH_STAT_CAP_XATTR, perms, in->xattr_version == 0); | |
14223 | if (r < 0) | |
14224 | goto out; | |
14225 | ||
14226 | if (acl_type == POSIX_ACL) { | |
14227 | if (in->xattrs.count(ACL_EA_ACCESS)) { | |
14228 | const bufferptr& access_acl = in->xattrs[ACL_EA_ACCESS]; | |
14229 | bufferptr acl(access_acl.c_str(), access_acl.length()); | |
14230 | r = posix_acl_access_chmod(acl, mode); | |
14231 | if (r < 0) | |
14232 | goto out; | |
14233 | r = _do_setxattr(in, ACL_EA_ACCESS, acl.c_str(), acl.length(), 0, perms); | |
14234 | } else { | |
14235 | r = 0; | |
14236 | } | |
14237 | } | |
14238 | out: | |
14239 | ldout(cct, 10) << __func__ << " ino " << in->ino << " result=" << r << dendl; | |
14240 | return r; | |
14241 | } | |
14242 | ||
14243 | int Client::_posix_acl_create(Inode *dir, mode_t *mode, bufferlist& xattrs_bl, | |
14244 | const UserPerm& perms) | |
14245 | { | |
14246 | if (acl_type == NO_ACL) | |
14247 | return 0; | |
14248 | ||
14249 | if (S_ISLNK(*mode)) | |
14250 | return 0; | |
14251 | ||
14252 | int r = _getattr(dir, CEPH_STAT_CAP_XATTR, perms, dir->xattr_version == 0); | |
14253 | if (r < 0) | |
14254 | goto out; | |
14255 | ||
14256 | if (acl_type == POSIX_ACL) { | |
14257 | if (dir->xattrs.count(ACL_EA_DEFAULT)) { | |
14258 | map<string, bufferptr> xattrs; | |
14259 | ||
14260 | const bufferptr& default_acl = dir->xattrs[ACL_EA_DEFAULT]; | |
14261 | bufferptr acl(default_acl.c_str(), default_acl.length()); | |
14262 | r = posix_acl_inherit_mode(acl, mode); | |
14263 | if (r < 0) | |
14264 | goto out; | |
14265 | ||
14266 | if (r > 0) { | |
14267 | r = posix_acl_equiv_mode(acl.c_str(), acl.length(), mode); | |
14268 | if (r < 0) | |
14269 | goto out; | |
14270 | if (r > 0) | |
14271 | xattrs[ACL_EA_ACCESS] = acl; | |
14272 | } | |
14273 | ||
14274 | if (S_ISDIR(*mode)) | |
14275 | xattrs[ACL_EA_DEFAULT] = dir->xattrs[ACL_EA_DEFAULT]; | |
14276 | ||
14277 | r = xattrs.size(); | |
14278 | if (r > 0) | |
11fdf7f2 | 14279 | encode(xattrs, xattrs_bl); |
7c673cae FG |
14280 | } else { |
14281 | if (umask_cb) | |
14282 | *mode &= ~umask_cb(callback_handle); | |
14283 | r = 0; | |
14284 | } | |
14285 | } | |
14286 | out: | |
14287 | ldout(cct, 10) << __func__ << " dir ino " << dir->ino << " result=" << r << dendl; | |
14288 | return r; | |
14289 | } | |
14290 | ||
14291 | void Client::set_filer_flags(int flags) | |
14292 | { | |
11fdf7f2 TL |
14293 | std::lock_guard l(client_lock); |
14294 | ceph_assert(flags == 0 || | |
7c673cae FG |
14295 | flags == CEPH_OSD_FLAG_LOCALIZE_READS); |
14296 | objecter->add_global_op_flags(flags); | |
14297 | } | |
14298 | ||
14299 | void Client::clear_filer_flags(int flags) | |
14300 | { | |
11fdf7f2 TL |
14301 | std::lock_guard l(client_lock); |
14302 | ceph_assert(flags == CEPH_OSD_FLAG_LOCALIZE_READS); | |
7c673cae FG |
14303 | objecter->clear_global_op_flag(flags); |
14304 | } | |
14305 | ||
11fdf7f2 TL |
14306 | // called before mount |
14307 | void Client::set_uuid(const std::string& uuid) | |
14308 | { | |
14309 | std::lock_guard l(client_lock); | |
14310 | assert(initialized); | |
14311 | assert(!uuid.empty()); | |
14312 | ||
14313 | metadata["uuid"] = uuid; | |
14314 | _close_sessions(); | |
14315 | } | |
14316 | ||
14317 | // called before mount. 0 means infinite | |
14318 | void Client::set_session_timeout(unsigned timeout) | |
14319 | { | |
14320 | std::lock_guard l(client_lock); | |
14321 | assert(initialized); | |
14322 | ||
14323 | metadata["timeout"] = stringify(timeout); | |
14324 | } | |
14325 | ||
14326 | // called before mount | |
14327 | int Client::start_reclaim(const std::string& uuid, unsigned flags, | |
14328 | const std::string& fs_name) | |
14329 | { | |
14330 | std::lock_guard l(client_lock); | |
14331 | if (!initialized) | |
14332 | return -ENOTCONN; | |
14333 | ||
14334 | if (uuid.empty()) | |
14335 | return -EINVAL; | |
14336 | ||
14337 | { | |
14338 | auto it = metadata.find("uuid"); | |
14339 | if (it != metadata.end() && it->second == uuid) | |
14340 | return -EINVAL; | |
14341 | } | |
14342 | ||
14343 | int r = subscribe_mdsmap(fs_name); | |
14344 | if (r < 0) { | |
14345 | lderr(cct) << "mdsmap subscription failed: " << cpp_strerror(r) << dendl; | |
14346 | return r; | |
14347 | } | |
14348 | ||
14349 | if (metadata.empty()) | |
14350 | populate_metadata(""); | |
14351 | ||
14352 | while (mdsmap->get_epoch() == 0) | |
14353 | wait_on_list(waiting_for_mdsmap); | |
14354 | ||
14355 | reclaim_errno = 0; | |
14356 | for (unsigned mds = 0; mds < mdsmap->get_num_in_mds(); ) { | |
14357 | if (!mdsmap->is_up(mds)) { | |
14358 | ldout(cct, 10) << "mds." << mds << " not active, waiting for new mdsmap" << dendl; | |
14359 | wait_on_list(waiting_for_mdsmap); | |
14360 | continue; | |
14361 | } | |
14362 | ||
14363 | MetaSession *session; | |
14364 | if (!have_open_session(mds)) { | |
14365 | session = _get_or_open_mds_session(mds); | |
14366 | if (session->state != MetaSession::STATE_OPENING) { | |
14367 | // umounting? | |
14368 | return -EINVAL; | |
14369 | } | |
14370 | ldout(cct, 10) << "waiting for session to mds." << mds << " to open" << dendl; | |
14371 | wait_on_context_list(session->waiting_for_open); | |
14372 | if (rejected_by_mds.count(mds)) | |
14373 | return -EPERM; | |
14374 | continue; | |
14375 | } | |
14376 | ||
14377 | session = &mds_sessions.at(mds); | |
14378 | if (!session->mds_features.test(CEPHFS_FEATURE_RECLAIM_CLIENT)) | |
14379 | return -EOPNOTSUPP; | |
14380 | ||
14381 | if (session->reclaim_state == MetaSession::RECLAIM_NULL || | |
14382 | session->reclaim_state == MetaSession::RECLAIMING) { | |
14383 | session->reclaim_state = MetaSession::RECLAIMING; | |
14384 | auto m = MClientReclaim::create(uuid, flags); | |
14385 | session->con->send_message2(std::move(m)); | |
14386 | wait_on_list(waiting_for_reclaim); | |
14387 | } else if (session->reclaim_state == MetaSession::RECLAIM_FAIL) { | |
14388 | return reclaim_errno ? : -ENOTRECOVERABLE; | |
14389 | } else { | |
14390 | mds++; | |
14391 | } | |
14392 | } | |
14393 | ||
14394 | // didn't find target session in any mds | |
14395 | if (reclaim_target_addrs.empty()) { | |
14396 | if (flags & CEPH_RECLAIM_RESET) | |
14397 | return -ENOENT; | |
14398 | return -ENOTRECOVERABLE; | |
14399 | } | |
14400 | ||
14401 | if (flags & CEPH_RECLAIM_RESET) | |
14402 | return 0; | |
14403 | ||
14404 | // use blacklist to check if target session was killed | |
14405 | // (config option mds_session_blacklist_on_evict needs to be true) | |
14406 | C_SaferCond cond; | |
14407 | if (!objecter->wait_for_map(reclaim_osd_epoch, &cond)) { | |
14408 | ldout(cct, 10) << __func__ << ": waiting for OSD epoch " << reclaim_osd_epoch << dendl; | |
14409 | client_lock.Unlock(); | |
14410 | cond.wait(); | |
14411 | client_lock.Lock(); | |
14412 | } | |
14413 | ||
14414 | bool blacklisted = objecter->with_osdmap( | |
14415 | [this](const OSDMap &osd_map) -> bool { | |
14416 | return osd_map.is_blacklisted(reclaim_target_addrs); | |
14417 | }); | |
14418 | if (blacklisted) | |
14419 | return -ENOTRECOVERABLE; | |
14420 | ||
14421 | metadata["reclaiming_uuid"] = uuid; | |
14422 | return 0; | |
14423 | } | |
14424 | ||
14425 | void Client::finish_reclaim() | |
14426 | { | |
14427 | auto it = metadata.find("reclaiming_uuid"); | |
14428 | if (it == metadata.end()) { | |
14429 | for (auto &p : mds_sessions) | |
14430 | p.second.reclaim_state = MetaSession::RECLAIM_NULL; | |
14431 | return; | |
14432 | } | |
14433 | ||
14434 | for (auto &p : mds_sessions) { | |
14435 | p.second.reclaim_state = MetaSession::RECLAIM_NULL; | |
14436 | auto m = MClientReclaim::create("", MClientReclaim::FLAG_FINISH); | |
14437 | p.second.con->send_message2(std::move(m)); | |
14438 | } | |
14439 | ||
14440 | metadata["uuid"] = it->second; | |
14441 | metadata.erase(it); | |
14442 | } | |
14443 | ||
14444 | void Client::handle_client_reclaim_reply(const MConstRef<MClientReclaimReply>& reply) | |
14445 | { | |
14446 | mds_rank_t from = mds_rank_t(reply->get_source().num()); | |
14447 | ldout(cct, 10) << __func__ << " " << *reply << " from mds." << from << dendl; | |
14448 | ||
14449 | MetaSession *session = _get_mds_session(from, reply->get_connection().get()); | |
14450 | if (!session) { | |
14451 | ldout(cct, 10) << " discarding reclaim reply from sessionless mds." << from << dendl; | |
14452 | return; | |
14453 | } | |
14454 | ||
14455 | if (reply->get_result() >= 0) { | |
14456 | session->reclaim_state = MetaSession::RECLAIM_OK; | |
14457 | if (reply->get_epoch() > reclaim_osd_epoch) | |
14458 | reclaim_osd_epoch = reply->get_epoch(); | |
14459 | if (!reply->get_addrs().empty()) | |
14460 | reclaim_target_addrs = reply->get_addrs(); | |
14461 | } else { | |
14462 | session->reclaim_state = MetaSession::RECLAIM_FAIL; | |
14463 | reclaim_errno = reply->get_result(); | |
14464 | } | |
14465 | ||
14466 | signal_cond_list(waiting_for_reclaim); | |
14467 | } | |
14468 | ||
7c673cae FG |
14469 | /** |
14470 | * This is included in cap release messages, to cause | |
14471 | * the MDS to wait until this OSD map epoch. It is necessary | |
14472 | * in corner cases where we cancel RADOS ops, so that | |
14473 | * nobody else tries to do IO to the same objects in | |
14474 | * the same epoch as the cancelled ops. | |
14475 | */ | |
14476 | void Client::set_cap_epoch_barrier(epoch_t e) | |
14477 | { | |
14478 | ldout(cct, 5) << __func__ << " epoch = " << e << dendl; | |
14479 | cap_epoch_barrier = e; | |
14480 | } | |
14481 | ||
14482 | const char** Client::get_tracked_conf_keys() const | |
14483 | { | |
14484 | static const char* keys[] = { | |
14485 | "client_cache_size", | |
14486 | "client_cache_mid", | |
14487 | "client_acl_type", | |
b32b8144 FG |
14488 | "client_deleg_timeout", |
14489 | "client_deleg_break_on_open", | |
7c673cae FG |
14490 | NULL |
14491 | }; | |
14492 | return keys; | |
14493 | } | |
14494 | ||
11fdf7f2 | 14495 | void Client::handle_conf_change(const ConfigProxy& conf, |
7c673cae FG |
14496 | const std::set <std::string> &changed) |
14497 | { | |
11fdf7f2 | 14498 | std::lock_guard lock(client_lock); |
7c673cae | 14499 | |
181888fb | 14500 | if (changed.count("client_cache_mid")) { |
7c673cae FG |
14501 | lru.lru_set_midpoint(cct->_conf->client_cache_mid); |
14502 | } | |
14503 | if (changed.count("client_acl_type")) { | |
14504 | acl_type = NO_ACL; | |
14505 | if (cct->_conf->client_acl_type == "posix_acl") | |
14506 | acl_type = POSIX_ACL; | |
14507 | } | |
14508 | } | |
14509 | ||
7c673cae FG |
14510 | void intrusive_ptr_add_ref(Inode *in) |
14511 | { | |
14512 | in->get(); | |
14513 | } | |
14514 | ||
14515 | void intrusive_ptr_release(Inode *in) | |
14516 | { | |
14517 | in->client->put_inode(in); | |
14518 | } | |
14519 | ||
14520 | mds_rank_t Client::_get_random_up_mds() const | |
14521 | { | |
11fdf7f2 | 14522 | ceph_assert(client_lock.is_locked_by_me()); |
7c673cae FG |
14523 | |
14524 | std::set<mds_rank_t> up; | |
14525 | mdsmap->get_up_mds_set(up); | |
14526 | ||
14527 | if (up.empty()) | |
14528 | return MDS_RANK_NONE; | |
14529 | std::set<mds_rank_t>::const_iterator p = up.begin(); | |
14530 | for (int n = rand() % up.size(); n; n--) | |
14531 | ++p; | |
14532 | return *p; | |
14533 | } | |
14534 | ||
14535 | ||
14536 | StandaloneClient::StandaloneClient(Messenger *m, MonClient *mc) | |
14537 | : Client(m, mc, new Objecter(m->cct, m, mc, NULL, 0, 0)) | |
14538 | { | |
14539 | monclient->set_messenger(m); | |
14540 | objecter->set_client_incarnation(0); | |
14541 | } | |
14542 | ||
14543 | StandaloneClient::~StandaloneClient() | |
14544 | { | |
14545 | delete objecter; | |
14546 | objecter = nullptr; | |
14547 | } | |
14548 | ||
14549 | int StandaloneClient::init() | |
14550 | { | |
14551 | timer.init(); | |
14552 | objectcacher->start(); | |
14553 | objecter->init(); | |
14554 | ||
14555 | client_lock.Lock(); | |
11fdf7f2 | 14556 | ceph_assert(!is_initialized()); |
7c673cae FG |
14557 | |
14558 | messenger->add_dispatcher_tail(objecter); | |
14559 | messenger->add_dispatcher_tail(this); | |
14560 | ||
14561 | monclient->set_want_keys(CEPH_ENTITY_TYPE_MDS | CEPH_ENTITY_TYPE_OSD); | |
14562 | int r = monclient->init(); | |
14563 | if (r < 0) { | |
14564 | // need to do cleanup because we're in an intermediate init state | |
14565 | timer.shutdown(); | |
14566 | client_lock.Unlock(); | |
14567 | objecter->shutdown(); | |
14568 | objectcacher->stop(); | |
14569 | monclient->shutdown(); | |
14570 | return r; | |
14571 | } | |
14572 | objecter->start(); | |
14573 | ||
14574 | client_lock.Unlock(); | |
14575 | _finish_init(); | |
14576 | ||
14577 | return 0; | |
14578 | } | |
14579 | ||
14580 | void StandaloneClient::shutdown() | |
14581 | { | |
14582 | Client::shutdown(); | |
14583 | objecter->shutdown(); | |
14584 | monclient->shutdown(); | |
14585 | } |