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7c673cae | 1 | // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- |
9f95a23c | 2 | // vim: ts=8 sw=2 smarttab ft=cpp |
7c673cae FG |
3 | |
4 | #include "include/compat.h" | |
5 | #include "include/rados/rgw_file.h" | |
6 | ||
7 | #include <sys/types.h> | |
8 | #include <sys/stat.h> | |
9 | ||
10 | #include "rgw_lib.h" | |
7c673cae FG |
11 | #include "rgw_resolve.h" |
12 | #include "rgw_op.h" | |
13 | #include "rgw_rest.h" | |
14 | #include "rgw_acl.h" | |
15 | #include "rgw_acl_s3.h" | |
16 | #include "rgw_frontend.h" | |
17 | #include "rgw_request.h" | |
18 | #include "rgw_process.h" | |
19 | #include "rgw_rest_user.h" | |
20 | #include "rgw_rest_s3.h" | |
21 | #include "rgw_os_lib.h" | |
22 | #include "rgw_auth_s3.h" | |
23 | #include "rgw_user.h" | |
24 | #include "rgw_bucket.h" | |
11fdf7f2 | 25 | #include "rgw_zone.h" |
7c673cae FG |
26 | #include "rgw_file.h" |
27 | #include "rgw_lib_frontend.h" | |
11fdf7f2 | 28 | #include "rgw_perf_counters.h" |
28e407b8 | 29 | #include "common/errno.h" |
7c673cae | 30 | |
9f95a23c TL |
31 | #include "services/svc_zone.h" |
32 | ||
7c673cae FG |
33 | #include <atomic> |
34 | ||
35 | #define dout_subsys ceph_subsys_rgw | |
36 | ||
20effc67 | 37 | using namespace std; |
7c673cae FG |
38 | using namespace rgw; |
39 | ||
40 | namespace rgw { | |
41 | ||
7c673cae FG |
42 | const string RGWFileHandle::root_name = "/"; |
43 | ||
44 | std::atomic<uint32_t> RGWLibFS::fs_inst_counter; | |
45 | ||
46 | uint32_t RGWLibFS::write_completion_interval_s = 10; | |
47 | ||
48 | ceph::timer<ceph::mono_clock> RGWLibFS::write_timer{ | |
49 | ceph::construct_suspended}; | |
50 | ||
51 | inline int valid_fs_bucket_name(const string& name) { | |
52 | int rc = valid_s3_bucket_name(name, false /* relaxed */); | |
53 | if (rc != 0) { | |
54 | if (name.size() > 255) | |
55 | return -ENAMETOOLONG; | |
56 | return -EINVAL; | |
57 | } | |
58 | return 0; | |
59 | } | |
60 | ||
61 | inline int valid_fs_object_name(const string& name) { | |
62 | int rc = valid_s3_object_name(name); | |
63 | if (rc != 0) { | |
64 | if (name.size() > 1024) | |
65 | return -ENAMETOOLONG; | |
66 | return -EINVAL; | |
67 | } | |
68 | return 0; | |
69 | } | |
70 | ||
f67539c2 TL |
71 | class XattrHash |
72 | { | |
73 | public: | |
74 | std::size_t operator()(const rgw_xattrstr& att) const noexcept { | |
75 | return XXH64(att.val, att.len, 5882300); | |
76 | } | |
77 | }; | |
78 | ||
79 | class XattrEqual | |
80 | { | |
81 | public: | |
82 | bool operator()(const rgw_xattrstr& lhs, const rgw_xattrstr& rhs) const { | |
83 | return ((lhs.len == rhs.len) && | |
84 | (strncmp(lhs.val, rhs.val, lhs.len) == 0)); | |
85 | } | |
86 | }; | |
87 | ||
88 | /* well-known attributes */ | |
89 | static const std::unordered_set< | |
90 | rgw_xattrstr, XattrHash, XattrEqual> rgw_exposed_attrs = { | |
91 | rgw_xattrstr{const_cast<char*>(RGW_ATTR_ETAG), sizeof(RGW_ATTR_ETAG)-1} | |
92 | }; | |
93 | ||
94 | static inline bool is_exposed_attr(const rgw_xattrstr& k) { | |
95 | return (rgw_exposed_attrs.find(k) != rgw_exposed_attrs.end()); | |
96 | } | |
97 | ||
31f18b77 FG |
98 | LookupFHResult RGWLibFS::stat_bucket(RGWFileHandle* parent, const char *path, |
99 | RGWLibFS::BucketStats& bs, | |
100 | uint32_t flags) | |
7c673cae FG |
101 | { |
102 | LookupFHResult fhr{nullptr, 0}; | |
103 | std::string bucket_name{path}; | |
20effc67 | 104 | RGWStatBucketRequest req(cct, user->clone(), bucket_name, bs); |
7c673cae | 105 | |
1e59de90 | 106 | int rc = g_rgwlib->get_fe()->execute_req(&req); |
7c673cae FG |
107 | if ((rc == 0) && |
108 | (req.get_ret() == 0) && | |
109 | (req.matched())) { | |
110 | fhr = lookup_fh(parent, path, | |
31f18b77 | 111 | (flags & RGWFileHandle::FLAG_LOCKED)| |
7c673cae FG |
112 | RGWFileHandle::FLAG_CREATE| |
113 | RGWFileHandle::FLAG_BUCKET); | |
114 | if (get<0>(fhr)) { | |
115 | RGWFileHandle* rgw_fh = get<0>(fhr); | |
31f18b77 FG |
116 | if (! (flags & RGWFileHandle::FLAG_LOCKED)) { |
117 | rgw_fh->mtx.lock(); | |
118 | } | |
7c673cae FG |
119 | rgw_fh->set_times(req.get_ctime()); |
120 | /* restore attributes */ | |
121 | auto ux_key = req.get_attr(RGW_ATTR_UNIX_KEY1); | |
122 | auto ux_attrs = req.get_attr(RGW_ATTR_UNIX1); | |
123 | if (ux_key && ux_attrs) { | |
3efd9988 FG |
124 | DecodeAttrsResult dar = rgw_fh->decode_attrs(ux_key, ux_attrs); |
125 | if (get<0>(dar) || get<1>(dar)) { | |
126 | update_fh(rgw_fh); | |
127 | } | |
7c673cae | 128 | } |
31f18b77 FG |
129 | if (! (flags & RGWFileHandle::FLAG_LOCKED)) { |
130 | rgw_fh->mtx.unlock(); | |
131 | } | |
7c673cae FG |
132 | } |
133 | } | |
134 | return fhr; | |
135 | } | |
136 | ||
eafe8130 TL |
137 | LookupFHResult RGWLibFS::fake_leaf(RGWFileHandle* parent, |
138 | const char *path, | |
139 | enum rgw_fh_type type, | |
140 | struct stat *st, uint32_t st_mask, | |
141 | uint32_t flags) | |
142 | { | |
143 | /* synthesize a minimal handle from parent, path, type, and st */ | |
144 | using std::get; | |
145 | ||
146 | flags |= RGWFileHandle::FLAG_CREATE; | |
147 | ||
148 | switch (type) { | |
149 | case RGW_FS_TYPE_DIRECTORY: | |
150 | flags |= RGWFileHandle::FLAG_DIRECTORY; | |
151 | break; | |
152 | default: | |
153 | /* file */ | |
154 | break; | |
155 | }; | |
156 | ||
157 | LookupFHResult fhr = lookup_fh(parent, path, flags); | |
158 | if (get<0>(fhr)) { | |
159 | RGWFileHandle* rgw_fh = get<0>(fhr); | |
160 | if (st) { | |
161 | lock_guard guard(rgw_fh->mtx); | |
162 | if (st_mask & RGW_SETATTR_SIZE) { | |
163 | rgw_fh->set_size(st->st_size); | |
164 | } | |
165 | if (st_mask & RGW_SETATTR_MTIME) { | |
166 | rgw_fh->set_times(st->st_mtim); | |
167 | } | |
168 | } /* st */ | |
169 | } /* rgw_fh */ | |
170 | return fhr; | |
171 | } /* RGWLibFS::fake_leaf */ | |
172 | ||
7c673cae FG |
173 | LookupFHResult RGWLibFS::stat_leaf(RGWFileHandle* parent, |
174 | const char *path, | |
175 | enum rgw_fh_type type, | |
176 | uint32_t flags) | |
177 | { | |
178 | /* find either-of <object_name>, <object_name/>, only one of | |
179 | * which should exist; atomicity? */ | |
180 | using std::get; | |
181 | ||
182 | LookupFHResult fhr{nullptr, 0}; | |
183 | ||
184 | /* XXX the need for two round-trip operations to identify file or | |
185 | * directory leaf objects is unecessary--the current proposed | |
186 | * mechanism to avoid this is to store leaf object names with an | |
187 | * object locator w/o trailing slash */ | |
188 | ||
31f18b77 | 189 | std::string obj_path = parent->format_child_name(path, false); |
7c673cae FG |
190 | |
191 | for (auto ix : { 0, 1, 2 }) { | |
192 | switch (ix) { | |
193 | case 0: | |
194 | { | |
195 | /* type hint */ | |
196 | if (type == RGW_FS_TYPE_DIRECTORY) | |
197 | continue; | |
198 | ||
20effc67 | 199 | RGWStatObjRequest req(cct, user->clone(), |
7c673cae FG |
200 | parent->bucket_name(), obj_path, |
201 | RGWStatObjRequest::FLAG_NONE); | |
1e59de90 | 202 | int rc = g_rgwlib->get_fe()->execute_req(&req); |
7c673cae FG |
203 | if ((rc == 0) && |
204 | (req.get_ret() == 0)) { | |
205 | fhr = lookup_fh(parent, path, RGWFileHandle::FLAG_CREATE); | |
206 | if (get<0>(fhr)) { | |
207 | RGWFileHandle* rgw_fh = get<0>(fhr); | |
208 | lock_guard guard(rgw_fh->mtx); | |
209 | rgw_fh->set_size(req.get_size()); | |
210 | rgw_fh->set_times(req.get_mtime()); | |
211 | /* restore attributes */ | |
212 | auto ux_key = req.get_attr(RGW_ATTR_UNIX_KEY1); | |
213 | auto ux_attrs = req.get_attr(RGW_ATTR_UNIX1); | |
81eedcae TL |
214 | rgw_fh->set_etag(*(req.get_attr(RGW_ATTR_ETAG))); |
215 | rgw_fh->set_acls(*(req.get_attr(RGW_ATTR_ACL))); | |
f67539c2 TL |
216 | if (!(flags & RGWFileHandle::FLAG_IN_CB) && |
217 | ux_key && ux_attrs) { | |
3efd9988 FG |
218 | DecodeAttrsResult dar = rgw_fh->decode_attrs(ux_key, ux_attrs); |
219 | if (get<0>(dar) || get<1>(dar)) { | |
220 | update_fh(rgw_fh); | |
221 | } | |
7c673cae FG |
222 | } |
223 | } | |
224 | goto done; | |
225 | } | |
226 | } | |
227 | break; | |
228 | case 1: | |
229 | { | |
230 | /* try dir form */ | |
231 | /* type hint */ | |
232 | if (type == RGW_FS_TYPE_FILE) | |
233 | continue; | |
234 | ||
235 | obj_path += "/"; | |
20effc67 | 236 | RGWStatObjRequest req(cct, user->clone(), |
7c673cae FG |
237 | parent->bucket_name(), obj_path, |
238 | RGWStatObjRequest::FLAG_NONE); | |
1e59de90 | 239 | int rc = g_rgwlib->get_fe()->execute_req(&req); |
7c673cae FG |
240 | if ((rc == 0) && |
241 | (req.get_ret() == 0)) { | |
242 | fhr = lookup_fh(parent, path, RGWFileHandle::FLAG_DIRECTORY); | |
243 | if (get<0>(fhr)) { | |
244 | RGWFileHandle* rgw_fh = get<0>(fhr); | |
245 | lock_guard guard(rgw_fh->mtx); | |
246 | rgw_fh->set_size(req.get_size()); | |
247 | rgw_fh->set_times(req.get_mtime()); | |
248 | /* restore attributes */ | |
249 | auto ux_key = req.get_attr(RGW_ATTR_UNIX_KEY1); | |
250 | auto ux_attrs = req.get_attr(RGW_ATTR_UNIX1); | |
81eedcae TL |
251 | rgw_fh->set_etag(*(req.get_attr(RGW_ATTR_ETAG))); |
252 | rgw_fh->set_acls(*(req.get_attr(RGW_ATTR_ACL))); | |
f67539c2 TL |
253 | if (!(flags & RGWFileHandle::FLAG_IN_CB) && |
254 | ux_key && ux_attrs) { | |
3efd9988 FG |
255 | DecodeAttrsResult dar = rgw_fh->decode_attrs(ux_key, ux_attrs); |
256 | if (get<0>(dar) || get<1>(dar)) { | |
257 | update_fh(rgw_fh); | |
258 | } | |
7c673cae FG |
259 | } |
260 | } | |
261 | goto done; | |
262 | } | |
263 | } | |
264 | break; | |
265 | case 2: | |
266 | { | |
267 | std::string object_name{path}; | |
20effc67 | 268 | RGWStatLeafRequest req(cct, user->clone(), |
f67539c2 | 269 | parent, object_name); |
1e59de90 | 270 | int rc = g_rgwlib->get_fe()->execute_req(&req); |
7c673cae FG |
271 | if ((rc == 0) && |
272 | (req.get_ret() == 0)) { | |
273 | if (req.matched) { | |
274 | /* we need rgw object's key name equal to file name, if | |
275 | * not return NULL */ | |
276 | if ((flags & RGWFileHandle::FLAG_EXACT_MATCH) && | |
277 | !req.exact_matched) { | |
278 | lsubdout(get_context(), rgw, 15) | |
279 | << __func__ | |
280 | << ": stat leaf not exact match file name = " | |
281 | << path << dendl; | |
282 | goto done; | |
283 | } | |
284 | fhr = lookup_fh(parent, path, | |
285 | RGWFileHandle::FLAG_CREATE| | |
286 | ((req.is_dir) ? | |
287 | RGWFileHandle::FLAG_DIRECTORY : | |
288 | RGWFileHandle::FLAG_NONE)); | |
289 | /* XXX we don't have an object--in general, there need not | |
290 | * be one (just a path segment in some other object). In | |
291 | * actual leaf an object exists, but we'd need another round | |
292 | * trip to get attrs */ | |
293 | if (get<0>(fhr)) { | |
294 | /* for now use the parent object's mtime */ | |
295 | RGWFileHandle* rgw_fh = get<0>(fhr); | |
296 | lock_guard guard(rgw_fh->mtx); | |
297 | rgw_fh->set_mtime(parent->get_mtime()); | |
298 | } | |
299 | } | |
300 | } | |
301 | } | |
302 | break; | |
303 | default: | |
304 | /* not reached */ | |
305 | break; | |
306 | } | |
307 | } | |
308 | done: | |
309 | return fhr; | |
310 | } /* RGWLibFS::stat_leaf */ | |
311 | ||
312 | int RGWLibFS::read(RGWFileHandle* rgw_fh, uint64_t offset, size_t length, | |
313 | size_t* bytes_read, void* buffer, uint32_t flags) | |
314 | { | |
315 | if (! rgw_fh->is_file()) | |
316 | return -EINVAL; | |
317 | ||
318 | if (rgw_fh->deleted()) | |
319 | return -ESTALE; | |
320 | ||
20effc67 | 321 | RGWReadRequest req(get_context(), user->clone(), rgw_fh, offset, length, buffer); |
7c673cae | 322 | |
1e59de90 | 323 | int rc = g_rgwlib->get_fe()->execute_req(&req); |
7c673cae | 324 | if ((rc == 0) && |
522d829b | 325 | ((rc = req.get_ret()) == 0)) { |
11fdf7f2 TL |
326 | lock_guard guard(rgw_fh->mtx); |
327 | rgw_fh->set_atime(real_clock::to_timespec(real_clock::now())); | |
328 | *bytes_read = req.nread; | |
329 | } | |
330 | ||
331 | return rc; | |
332 | } | |
333 | ||
334 | int RGWLibFS::readlink(RGWFileHandle* rgw_fh, uint64_t offset, size_t length, | |
335 | size_t* bytes_read, void* buffer, uint32_t flags) | |
336 | { | |
337 | if (! rgw_fh->is_link()) | |
338 | return -EINVAL; | |
339 | ||
340 | if (rgw_fh->deleted()) | |
341 | return -ESTALE; | |
342 | ||
20effc67 | 343 | RGWReadRequest req(get_context(), user->clone(), rgw_fh, offset, length, buffer); |
11fdf7f2 | 344 | |
1e59de90 | 345 | int rc = g_rgwlib->get_fe()->execute_req(&req); |
11fdf7f2 | 346 | if ((rc == 0) && |
522d829b | 347 | ((rc = req.get_ret()) == 0)) { |
7c673cae FG |
348 | lock_guard(rgw_fh->mtx); |
349 | rgw_fh->set_atime(real_clock::to_timespec(real_clock::now())); | |
350 | *bytes_read = req.nread; | |
351 | } | |
352 | ||
353 | return rc; | |
354 | } | |
355 | ||
356 | int RGWLibFS::unlink(RGWFileHandle* rgw_fh, const char* name, uint32_t flags) | |
357 | { | |
358 | int rc = 0; | |
31f18b77 | 359 | BucketStats bs; |
7c673cae | 360 | RGWFileHandle* parent = nullptr; |
31f18b77 | 361 | RGWFileHandle* bkt_fh = nullptr; |
7c673cae FG |
362 | |
363 | if (unlikely(flags & RGWFileHandle::FLAG_UNLINK_THIS)) { | |
364 | /* LOCKED */ | |
365 | parent = rgw_fh->get_parent(); | |
366 | } else { | |
367 | /* atomicity */ | |
368 | parent = rgw_fh; | |
369 | LookupFHResult fhr = lookup_fh(parent, name, RGWFileHandle::FLAG_LOCK); | |
370 | rgw_fh = get<0>(fhr); | |
371 | /* LOCKED */ | |
372 | } | |
373 | ||
374 | if (parent->is_root()) { | |
31f18b77 FG |
375 | /* a bucket may have an object storing Unix attributes, check |
376 | * for and delete it */ | |
377 | LookupFHResult fhr; | |
378 | fhr = stat_bucket(parent, name, bs, (rgw_fh) ? | |
379 | RGWFileHandle::FLAG_LOCKED : | |
380 | RGWFileHandle::FLAG_NONE); | |
381 | bkt_fh = get<0>(fhr); | |
382 | if (unlikely(! bkt_fh)) { | |
383 | /* implies !rgw_fh, so also !LOCKED */ | |
384 | return -ENOENT; | |
385 | } | |
386 | ||
387 | if (bs.num_entries > 1) { | |
388 | unref(bkt_fh); /* return stat_bucket ref */ | |
389 | if (likely(!! rgw_fh)) { /* return lock and ref from | |
390 | * lookup_fh (or caller in the | |
391 | * special case of | |
392 | * RGWFileHandle::FLAG_UNLINK_THIS) */ | |
393 | rgw_fh->mtx.unlock(); | |
394 | unref(rgw_fh); | |
395 | } | |
396 | return -ENOTEMPTY; | |
397 | } else { | |
398 | /* delete object w/key "<bucket>/" (uxattrs), if any */ | |
399 | string oname{"/"}; | |
20effc67 | 400 | RGWDeleteObjRequest req(cct, user->clone(), bkt_fh->bucket_name(), oname); |
1e59de90 | 401 | rc = g_rgwlib->get_fe()->execute_req(&req); |
31f18b77 FG |
402 | /* don't care if ENOENT */ |
403 | unref(bkt_fh); | |
404 | } | |
405 | ||
406 | string bname{name}; | |
20effc67 | 407 | RGWDeleteBucketRequest req(cct, user->clone(), bname); |
1e59de90 | 408 | rc = g_rgwlib->get_fe()->execute_req(&req); |
7c673cae FG |
409 | if (! rc) { |
410 | rc = req.get_ret(); | |
411 | } | |
412 | } else { | |
413 | /* | |
414 | * leaf object | |
415 | */ | |
416 | if (! rgw_fh) { | |
417 | /* XXX for now, peform a hard lookup to deduce the type of | |
418 | * object to be deleted ("foo" vs. "foo/")--also, ensures | |
419 | * atomicity at this endpoint */ | |
420 | struct rgw_file_handle *fh; | |
421 | rc = rgw_lookup(get_fs(), parent->get_fh(), name, &fh, | |
eafe8130 | 422 | nullptr /* st */, 0 /* mask */, |
7c673cae FG |
423 | RGW_LOOKUP_FLAG_NONE); |
424 | if (!! rc) | |
425 | return rc; | |
426 | ||
427 | /* rgw_fh ref+ */ | |
428 | rgw_fh = get_rgwfh(fh); | |
429 | rgw_fh->mtx.lock(); /* LOCKED */ | |
430 | } | |
431 | ||
432 | std::string oname = rgw_fh->relative_object_name(); | |
433 | if (rgw_fh->is_dir()) { | |
434 | /* for the duration of our cache timer, trust positive | |
435 | * child cache */ | |
436 | if (rgw_fh->has_children()) { | |
437 | rgw_fh->mtx.unlock(); | |
438 | unref(rgw_fh); | |
439 | return(-ENOTEMPTY); | |
440 | } | |
441 | oname += "/"; | |
442 | } | |
20effc67 | 443 | RGWDeleteObjRequest req(cct, user->clone(), parent->bucket_name(), oname); |
1e59de90 | 444 | rc = g_rgwlib->get_fe()->execute_req(&req); |
7c673cae FG |
445 | if (! rc) { |
446 | rc = req.get_ret(); | |
447 | } | |
448 | } | |
449 | ||
31f18b77 FG |
450 | /* ENOENT when raced with other s3 gateway */ |
451 | if (! rc || rc == -ENOENT) { | |
452 | rgw_fh->flags |= RGWFileHandle::FLAG_DELETED; | |
453 | fh_cache.remove(rgw_fh->fh.fh_hk.object, rgw_fh, | |
454 | RGWFileHandle::FHCache::FLAG_LOCK); | |
455 | } | |
7c673cae FG |
456 | |
457 | if (! rc) { | |
458 | real_time t = real_clock::now(); | |
459 | parent->set_mtime(real_clock::to_timespec(t)); | |
460 | parent->set_ctime(real_clock::to_timespec(t)); | |
461 | } | |
462 | ||
463 | rgw_fh->mtx.unlock(); | |
464 | unref(rgw_fh); | |
465 | ||
466 | return rc; | |
467 | } /* RGWLibFS::unlink */ | |
468 | ||
469 | int RGWLibFS::rename(RGWFileHandle* src_fh, RGWFileHandle* dst_fh, | |
470 | const char *_src_name, const char *_dst_name) | |
471 | ||
472 | { | |
473 | /* XXX initial implementation: try-copy, and delete if copy | |
474 | * succeeds */ | |
475 | int rc = -EINVAL; | |
7c673cae FG |
476 | real_time t; |
477 | ||
478 | std::string src_name{_src_name}; | |
479 | std::string dst_name{_dst_name}; | |
480 | ||
481 | /* atomicity */ | |
482 | LookupFHResult fhr = lookup_fh(src_fh, _src_name, RGWFileHandle::FLAG_LOCK); | |
483 | RGWFileHandle* rgw_fh = get<0>(fhr); | |
484 | ||
485 | /* should not happen */ | |
486 | if (! rgw_fh) { | |
487 | ldout(get_context(), 0) << __func__ | |
488 | << " BUG no such src renaming path=" | |
489 | << src_name | |
490 | << dendl; | |
491 | goto out; | |
492 | } | |
493 | ||
494 | /* forbid renaming of directories (unreasonable at scale) */ | |
495 | if (rgw_fh->is_dir()) { | |
496 | ldout(get_context(), 12) << __func__ | |
497 | << " rejecting attempt to rename directory path=" | |
498 | << rgw_fh->full_object_name() | |
499 | << dendl; | |
500 | rc = -EPERM; | |
501 | goto unlock; | |
502 | } | |
503 | ||
504 | /* forbid renaming open files (violates intent, for now) */ | |
505 | if (rgw_fh->is_open()) { | |
506 | ldout(get_context(), 12) << __func__ | |
507 | << " rejecting attempt to rename open file path=" | |
508 | << rgw_fh->full_object_name() | |
509 | << dendl; | |
510 | rc = -EPERM; | |
511 | goto unlock; | |
512 | } | |
513 | ||
514 | t = real_clock::now(); | |
515 | ||
516 | for (int ix : {0, 1}) { | |
517 | switch (ix) { | |
518 | case 0: | |
519 | { | |
20effc67 | 520 | RGWCopyObjRequest req(cct, user->clone(), src_fh, dst_fh, src_name, dst_name); |
1e59de90 | 521 | int rc = g_rgwlib->get_fe()->execute_req(&req); |
7c673cae FG |
522 | if ((rc != 0) || |
523 | ((rc = req.get_ret()) != 0)) { | |
524 | ldout(get_context(), 1) | |
525 | << __func__ | |
526 | << " rename step 0 failed src=" | |
527 | << src_fh->full_object_name() << " " << src_name | |
528 | << " dst=" << dst_fh->full_object_name() | |
529 | << " " << dst_name | |
530 | << "rc " << rc | |
531 | << dendl; | |
532 | goto unlock; | |
533 | } | |
534 | ldout(get_context(), 12) | |
535 | << __func__ | |
536 | << " rename step 0 success src=" | |
537 | << src_fh->full_object_name() << " " << src_name | |
538 | << " dst=" << dst_fh->full_object_name() | |
539 | << " " << dst_name | |
540 | << " rc " << rc | |
541 | << dendl; | |
542 | /* update dst change id */ | |
543 | dst_fh->set_times(t); | |
544 | } | |
545 | break; | |
546 | case 1: | |
547 | { | |
548 | rc = this->unlink(rgw_fh /* LOCKED */, _src_name, | |
549 | RGWFileHandle::FLAG_UNLINK_THIS); | |
550 | /* !LOCKED, -ref */ | |
551 | if (! rc) { | |
552 | ldout(get_context(), 12) | |
553 | << __func__ | |
554 | << " rename step 1 success src=" | |
555 | << src_fh->full_object_name() << " " << src_name | |
556 | << " dst=" << dst_fh->full_object_name() | |
557 | << " " << dst_name | |
558 | << " rc " << rc | |
559 | << dendl; | |
560 | /* update src change id */ | |
561 | src_fh->set_times(t); | |
562 | } else { | |
563 | ldout(get_context(), 1) | |
564 | << __func__ | |
565 | << " rename step 1 failed src=" | |
566 | << src_fh->full_object_name() << " " << src_name | |
567 | << " dst=" << dst_fh->full_object_name() | |
568 | << " " << dst_name | |
569 | << " rc " << rc | |
570 | << dendl; | |
571 | } | |
572 | } | |
573 | goto out; | |
574 | default: | |
11fdf7f2 | 575 | ceph_abort(); |
7c673cae FG |
576 | } /* switch */ |
577 | } /* ix */ | |
578 | unlock: | |
579 | rgw_fh->mtx.unlock(); /* !LOCKED */ | |
580 | unref(rgw_fh); /* -ref */ | |
581 | ||
582 | out: | |
583 | return rc; | |
584 | } /* RGWLibFS::rename */ | |
585 | ||
586 | MkObjResult RGWLibFS::mkdir(RGWFileHandle* parent, const char *name, | |
587 | struct stat *st, uint32_t mask, uint32_t flags) | |
588 | { | |
7c673cae | 589 | int rc, rc2; |
31f18b77 FG |
590 | rgw_file_handle *lfh; |
591 | ||
592 | rc = rgw_lookup(get_fs(), parent->get_fh(), name, &lfh, | |
eafe8130 | 593 | nullptr /* st */, 0 /* mask */, |
31f18b77 FG |
594 | RGW_LOOKUP_FLAG_NONE); |
595 | if (! rc) { | |
596 | /* conflict! */ | |
597 | rc = rgw_fh_rele(get_fs(), lfh, RGW_FH_RELE_FLAG_NONE); | |
f67539c2 | 598 | // ignore return code |
31f18b77 FG |
599 | return MkObjResult{nullptr, -EEXIST}; |
600 | } | |
7c673cae | 601 | |
31f18b77 | 602 | MkObjResult mkr{nullptr, -EINVAL}; |
7c673cae FG |
603 | LookupFHResult fhr; |
604 | RGWFileHandle* rgw_fh = nullptr; | |
605 | buffer::list ux_key, ux_attrs; | |
606 | ||
607 | fhr = lookup_fh(parent, name, | |
608 | RGWFileHandle::FLAG_CREATE| | |
609 | RGWFileHandle::FLAG_DIRECTORY| | |
610 | RGWFileHandle::FLAG_LOCK); | |
611 | rgw_fh = get<0>(fhr); | |
612 | if (rgw_fh) { | |
613 | rgw_fh->create_stat(st, mask); | |
614 | rgw_fh->set_times(real_clock::now()); | |
615 | /* save attrs */ | |
616 | rgw_fh->encode_attrs(ux_key, ux_attrs); | |
617 | if (st) | |
494da23a | 618 | rgw_fh->stat(st, RGWFileHandle::FLAG_LOCKED); |
7c673cae FG |
619 | get<0>(mkr) = rgw_fh; |
620 | } else { | |
621 | get<1>(mkr) = -EIO; | |
622 | return mkr; | |
623 | } | |
624 | ||
625 | if (parent->is_root()) { | |
626 | /* bucket */ | |
627 | string bname{name}; | |
628 | /* enforce S3 name restrictions */ | |
629 | rc = valid_fs_bucket_name(bname); | |
630 | if (rc != 0) { | |
631 | rgw_fh->flags |= RGWFileHandle::FLAG_DELETED; | |
632 | fh_cache.remove(rgw_fh->fh.fh_hk.object, rgw_fh, | |
633 | RGWFileHandle::FHCache::FLAG_LOCK); | |
634 | rgw_fh->mtx.unlock(); | |
635 | unref(rgw_fh); | |
636 | get<0>(mkr) = nullptr; | |
637 | get<1>(mkr) = rc; | |
638 | return mkr; | |
639 | } | |
640 | ||
20effc67 | 641 | RGWCreateBucketRequest req(get_context(), user->clone(), bname); |
7c673cae FG |
642 | |
643 | /* save attrs */ | |
644 | req.emplace_attr(RGW_ATTR_UNIX_KEY1, std::move(ux_key)); | |
645 | req.emplace_attr(RGW_ATTR_UNIX1, std::move(ux_attrs)); | |
646 | ||
1e59de90 | 647 | rc = g_rgwlib->get_fe()->execute_req(&req); |
7c673cae FG |
648 | rc2 = req.get_ret(); |
649 | } else { | |
650 | /* create an object representing the directory */ | |
651 | buffer::list bl; | |
31f18b77 | 652 | string dir_name = parent->format_child_name(name, true); |
7c673cae FG |
653 | |
654 | /* need valid S3 name (characters, length <= 1024, etc) */ | |
655 | rc = valid_fs_object_name(dir_name); | |
656 | if (rc != 0) { | |
657 | rgw_fh->flags |= RGWFileHandle::FLAG_DELETED; | |
658 | fh_cache.remove(rgw_fh->fh.fh_hk.object, rgw_fh, | |
659 | RGWFileHandle::FHCache::FLAG_LOCK); | |
660 | rgw_fh->mtx.unlock(); | |
661 | unref(rgw_fh); | |
662 | get<0>(mkr) = nullptr; | |
663 | get<1>(mkr) = rc; | |
664 | return mkr; | |
665 | } | |
666 | ||
20effc67 | 667 | RGWPutObjRequest req(get_context(), user->clone(), parent->bucket_name(), dir_name, bl); |
7c673cae FG |
668 | |
669 | /* save attrs */ | |
670 | req.emplace_attr(RGW_ATTR_UNIX_KEY1, std::move(ux_key)); | |
671 | req.emplace_attr(RGW_ATTR_UNIX1, std::move(ux_attrs)); | |
672 | ||
1e59de90 | 673 | rc = g_rgwlib->get_fe()->execute_req(&req); |
7c673cae FG |
674 | rc2 = req.get_ret(); |
675 | } | |
676 | ||
677 | if (! ((rc == 0) && | |
678 | (rc2 == 0))) { | |
679 | /* op failed */ | |
680 | rgw_fh->flags |= RGWFileHandle::FLAG_DELETED; | |
681 | rgw_fh->mtx.unlock(); /* !LOCKED */ | |
682 | unref(rgw_fh); | |
683 | get<0>(mkr) = nullptr; | |
684 | /* fixup rc */ | |
685 | if (!rc) | |
686 | rc = rc2; | |
687 | } else { | |
688 | real_time t = real_clock::now(); | |
689 | parent->set_mtime(real_clock::to_timespec(t)); | |
690 | parent->set_ctime(real_clock::to_timespec(t)); | |
691 | rgw_fh->mtx.unlock(); /* !LOCKED */ | |
692 | } | |
693 | ||
694 | get<1>(mkr) = rc; | |
695 | ||
696 | return mkr; | |
697 | } /* RGWLibFS::mkdir */ | |
698 | ||
699 | MkObjResult RGWLibFS::create(RGWFileHandle* parent, const char *name, | |
700 | struct stat *st, uint32_t mask, uint32_t flags) | |
701 | { | |
702 | int rc, rc2; | |
703 | ||
704 | using std::get; | |
705 | ||
706 | rgw_file_handle *lfh; | |
707 | rc = rgw_lookup(get_fs(), parent->get_fh(), name, &lfh, | |
eafe8130 | 708 | nullptr /* st */, 0 /* mask */, |
7c673cae FG |
709 | RGW_LOOKUP_FLAG_NONE); |
710 | if (! rc) { | |
711 | /* conflict! */ | |
712 | rc = rgw_fh_rele(get_fs(), lfh, RGW_FH_RELE_FLAG_NONE); | |
f67539c2 | 713 | // ignore return code |
7c673cae FG |
714 | return MkObjResult{nullptr, -EEXIST}; |
715 | } | |
716 | ||
717 | /* expand and check name */ | |
31f18b77 | 718 | std::string obj_name = parent->format_child_name(name, false); |
7c673cae FG |
719 | rc = valid_fs_object_name(obj_name); |
720 | if (rc != 0) { | |
721 | return MkObjResult{nullptr, rc}; | |
722 | } | |
723 | ||
724 | /* create it */ | |
725 | buffer::list bl; | |
20effc67 | 726 | RGWPutObjRequest req(cct, user->clone(), parent->bucket_name(), obj_name, bl); |
7c673cae FG |
727 | MkObjResult mkr{nullptr, -EINVAL}; |
728 | ||
1e59de90 | 729 | rc = g_rgwlib->get_fe()->execute_req(&req); |
7c673cae FG |
730 | rc2 = req.get_ret(); |
731 | ||
732 | if ((rc == 0) && | |
733 | (rc2 == 0)) { | |
734 | /* XXX atomicity */ | |
735 | LookupFHResult fhr = lookup_fh(parent, name, RGWFileHandle::FLAG_CREATE | | |
736 | RGWFileHandle::FLAG_LOCK); | |
737 | RGWFileHandle* rgw_fh = get<0>(fhr); | |
738 | if (rgw_fh) { | |
739 | if (get<1>(fhr) & RGWFileHandle::FLAG_CREATE) { | |
740 | /* fill in stat data */ | |
741 | real_time t = real_clock::now(); | |
742 | rgw_fh->create_stat(st, mask); | |
743 | rgw_fh->set_times(t); | |
744 | ||
745 | parent->set_mtime(real_clock::to_timespec(t)); | |
746 | parent->set_ctime(real_clock::to_timespec(t)); | |
747 | } | |
748 | if (st) | |
494da23a | 749 | (void) rgw_fh->stat(st, RGWFileHandle::FLAG_LOCKED); |
81eedcae TL |
750 | |
751 | rgw_fh->set_etag(*(req.get_attr(RGW_ATTR_ETAG))); | |
752 | rgw_fh->set_acls(*(req.get_attr(RGW_ATTR_ACL))); | |
753 | ||
7c673cae | 754 | get<0>(mkr) = rgw_fh; |
1d09f67e | 755 | rgw_fh->file_ondisk_version = 0; // inital version |
7c673cae FG |
756 | rgw_fh->mtx.unlock(); |
757 | } else | |
758 | rc = -EIO; | |
759 | } | |
760 | ||
761 | get<1>(mkr) = rc; | |
11fdf7f2 TL |
762 | |
763 | /* case like : quota exceed will be considered as fail too*/ | |
764 | if(rc2 < 0) | |
765 | get<1>(mkr) = rc2; | |
7c673cae FG |
766 | |
767 | return mkr; | |
768 | } /* RGWLibFS::create */ | |
769 | ||
11fdf7f2 TL |
770 | MkObjResult RGWLibFS::symlink(RGWFileHandle* parent, const char *name, |
771 | const char* link_path, struct stat *st, uint32_t mask, uint32_t flags) | |
772 | { | |
773 | int rc, rc2; | |
774 | ||
775 | using std::get; | |
776 | ||
777 | rgw_file_handle *lfh; | |
eafe8130 TL |
778 | rc = rgw_lookup(get_fs(), parent->get_fh(), name, &lfh, |
779 | nullptr /* st */, 0 /* mask */, | |
11fdf7f2 TL |
780 | RGW_LOOKUP_FLAG_NONE); |
781 | if (! rc) { | |
782 | /* conflict! */ | |
783 | rc = rgw_fh_rele(get_fs(), lfh, RGW_FH_RELE_FLAG_NONE); | |
f67539c2 | 784 | // ignore return code |
11fdf7f2 TL |
785 | return MkObjResult{nullptr, -EEXIST}; |
786 | } | |
787 | ||
788 | MkObjResult mkr{nullptr, -EINVAL}; | |
789 | LookupFHResult fhr; | |
790 | RGWFileHandle* rgw_fh = nullptr; | |
791 | buffer::list ux_key, ux_attrs; | |
792 | ||
793 | fhr = lookup_fh(parent, name, | |
794 | RGWFileHandle::FLAG_CREATE| | |
795 | RGWFileHandle::FLAG_SYMBOLIC_LINK| | |
796 | RGWFileHandle::FLAG_LOCK); | |
797 | rgw_fh = get<0>(fhr); | |
798 | if (rgw_fh) { | |
799 | rgw_fh->create_stat(st, mask); | |
800 | rgw_fh->set_times(real_clock::now()); | |
801 | /* save attrs */ | |
802 | rgw_fh->encode_attrs(ux_key, ux_attrs); | |
803 | if (st) | |
804 | rgw_fh->stat(st); | |
805 | get<0>(mkr) = rgw_fh; | |
806 | } else { | |
807 | get<1>(mkr) = -EIO; | |
808 | return mkr; | |
809 | } | |
810 | ||
811 | /* need valid S3 name (characters, length <= 1024, etc) */ | |
812 | rc = valid_fs_object_name(name); | |
813 | if (rc != 0) { | |
814 | rgw_fh->flags |= RGWFileHandle::FLAG_DELETED; | |
815 | fh_cache.remove(rgw_fh->fh.fh_hk.object, rgw_fh, | |
816 | RGWFileHandle::FHCache::FLAG_LOCK); | |
817 | rgw_fh->mtx.unlock(); | |
818 | unref(rgw_fh); | |
819 | get<0>(mkr) = nullptr; | |
820 | get<1>(mkr) = rc; | |
821 | return mkr; | |
822 | } | |
823 | ||
824 | string obj_name = std::string(name); | |
825 | /* create an object representing the directory */ | |
826 | buffer::list bl; | |
827 | ||
828 | /* XXXX */ | |
829 | #if 0 | |
830 | bl.push_back( | |
831 | buffer::create_static(len, static_cast<char*>(buffer))); | |
832 | #else | |
833 | ||
834 | bl.push_back( | |
835 | buffer::copy(link_path, strlen(link_path))); | |
836 | #endif | |
837 | ||
20effc67 | 838 | RGWPutObjRequest req(get_context(), user->clone(), parent->bucket_name(), obj_name, bl); |
11fdf7f2 TL |
839 | |
840 | /* save attrs */ | |
841 | req.emplace_attr(RGW_ATTR_UNIX_KEY1, std::move(ux_key)); | |
842 | req.emplace_attr(RGW_ATTR_UNIX1, std::move(ux_attrs)); | |
843 | ||
1e59de90 | 844 | rc = g_rgwlib->get_fe()->execute_req(&req); |
11fdf7f2 TL |
845 | rc2 = req.get_ret(); |
846 | if (! ((rc == 0) && | |
847 | (rc2 == 0))) { | |
848 | /* op failed */ | |
849 | rgw_fh->flags |= RGWFileHandle::FLAG_DELETED; | |
850 | rgw_fh->mtx.unlock(); /* !LOCKED */ | |
851 | unref(rgw_fh); | |
852 | get<0>(mkr) = nullptr; | |
853 | /* fixup rc */ | |
854 | if (!rc) | |
855 | rc = rc2; | |
856 | } else { | |
857 | real_time t = real_clock::now(); | |
858 | parent->set_mtime(real_clock::to_timespec(t)); | |
859 | parent->set_ctime(real_clock::to_timespec(t)); | |
860 | rgw_fh->mtx.unlock(); /* !LOCKED */ | |
861 | } | |
862 | ||
863 | get<1>(mkr) = rc; | |
864 | ||
865 | return mkr; | |
866 | } /* RGWLibFS::symlink */ | |
867 | ||
7c673cae FG |
868 | int RGWLibFS::getattr(RGWFileHandle* rgw_fh, struct stat* st) |
869 | { | |
870 | switch(rgw_fh->fh.fh_type) { | |
871 | case RGW_FS_TYPE_FILE: | |
872 | { | |
873 | if (rgw_fh->deleted()) | |
874 | return -ESTALE; | |
875 | } | |
876 | break; | |
877 | default: | |
878 | break; | |
879 | }; | |
494da23a | 880 | /* if rgw_fh is a directory, mtime will be advanced */ |
7c673cae FG |
881 | return rgw_fh->stat(st); |
882 | } /* RGWLibFS::getattr */ | |
883 | ||
884 | int RGWLibFS::setattr(RGWFileHandle* rgw_fh, struct stat* st, uint32_t mask, | |
885 | uint32_t flags) | |
886 | { | |
887 | int rc, rc2; | |
888 | buffer::list ux_key, ux_attrs; | |
81eedcae TL |
889 | buffer::list etag = rgw_fh->get_etag(); |
890 | buffer::list acls = rgw_fh->get_acls(); | |
7c673cae FG |
891 | |
892 | lock_guard guard(rgw_fh->mtx); | |
893 | ||
894 | switch(rgw_fh->fh.fh_type) { | |
895 | case RGW_FS_TYPE_FILE: | |
896 | { | |
897 | if (rgw_fh->deleted()) | |
898 | return -ESTALE; | |
899 | } | |
900 | break; | |
901 | default: | |
902 | break; | |
903 | }; | |
904 | ||
905 | string obj_name{rgw_fh->relative_object_name()}; | |
906 | ||
31f18b77 FG |
907 | if (rgw_fh->is_dir() && |
908 | (likely(! rgw_fh->is_bucket()))) { | |
7c673cae FG |
909 | obj_name += "/"; |
910 | } | |
911 | ||
20effc67 | 912 | RGWSetAttrsRequest req(cct, user->clone(), rgw_fh->bucket_name(), obj_name); |
7c673cae FG |
913 | |
914 | rgw_fh->create_stat(st, mask); | |
915 | rgw_fh->encode_attrs(ux_key, ux_attrs); | |
916 | ||
917 | /* save attrs */ | |
918 | req.emplace_attr(RGW_ATTR_UNIX_KEY1, std::move(ux_key)); | |
919 | req.emplace_attr(RGW_ATTR_UNIX1, std::move(ux_attrs)); | |
81eedcae TL |
920 | req.emplace_attr(RGW_ATTR_ETAG, std::move(etag)); |
921 | req.emplace_attr(RGW_ATTR_ACL, std::move(acls)); | |
7c673cae | 922 | |
1e59de90 | 923 | rc = g_rgwlib->get_fe()->execute_req(&req); |
7c673cae FG |
924 | rc2 = req.get_ret(); |
925 | ||
926 | if (rc == -ENOENT) { | |
927 | /* special case: materialize placeholder dir */ | |
928 | buffer::list bl; | |
20effc67 | 929 | RGWPutObjRequest req(get_context(), user->clone(), rgw_fh->bucket_name(), obj_name, bl); |
7c673cae FG |
930 | |
931 | rgw_fh->encode_attrs(ux_key, ux_attrs); /* because std::moved */ | |
932 | ||
933 | /* save attrs */ | |
934 | req.emplace_attr(RGW_ATTR_UNIX_KEY1, std::move(ux_key)); | |
935 | req.emplace_attr(RGW_ATTR_UNIX1, std::move(ux_attrs)); | |
936 | ||
1e59de90 | 937 | rc = g_rgwlib->get_fe()->execute_req(&req); |
7c673cae FG |
938 | rc2 = req.get_ret(); |
939 | } | |
940 | ||
941 | if ((rc != 0) || (rc2 != 0)) { | |
942 | return -EIO; | |
943 | } | |
944 | ||
945 | rgw_fh->set_ctime(real_clock::to_timespec(real_clock::now())); | |
946 | ||
947 | return 0; | |
948 | } /* RGWLibFS::setattr */ | |
949 | ||
f67539c2 TL |
950 | static inline std::string prefix_xattr_keystr(const rgw_xattrstr& key) { |
951 | std::string keystr; | |
952 | keystr.reserve(sizeof(RGW_ATTR_META_PREFIX) + key.len); | |
522d829b | 953 | keystr += string{RGW_ATTR_META_PREFIX}; |
f67539c2 TL |
954 | keystr += string{key.val, key.len}; |
955 | return keystr; | |
956 | } | |
957 | ||
958 | static inline std::string_view unprefix_xattr_keystr(const std::string& key) | |
959 | { | |
960 | std::string_view svk{key}; | |
961 | auto pos = svk.find(RGW_ATTR_META_PREFIX); | |
962 | if (pos == std::string_view::npos) { | |
963 | return std::string_view{""}; | |
964 | } else if (pos == 0) { | |
965 | svk.remove_prefix(sizeof(RGW_ATTR_META_PREFIX)-1); | |
966 | } | |
967 | return svk; | |
968 | } | |
969 | ||
970 | int RGWLibFS::getxattrs(RGWFileHandle* rgw_fh, rgw_xattrlist *attrs, | |
971 | rgw_getxattr_cb cb, void *cb_arg, | |
972 | uint32_t flags) | |
973 | { | |
974 | /* cannot store on fs_root, should not on buckets? */ | |
975 | if ((rgw_fh->is_bucket()) || | |
976 | (rgw_fh->is_root())) { | |
977 | return -EINVAL; | |
978 | } | |
979 | ||
980 | int rc, rc2, rc3; | |
981 | string obj_name{rgw_fh->relative_object_name2()}; | |
982 | ||
20effc67 | 983 | RGWGetAttrsRequest req(cct, user->clone(), rgw_fh->bucket_name(), obj_name); |
f67539c2 TL |
984 | |
985 | for (uint32_t ix = 0; ix < attrs->xattr_cnt; ++ix) { | |
986 | auto& xattr = attrs->xattrs[ix]; | |
987 | ||
988 | /* pass exposed attr keys as given, else prefix */ | |
989 | std::string k = is_exposed_attr(xattr.key) | |
990 | ? std::string{xattr.key.val, xattr.key.len} | |
991 | : prefix_xattr_keystr(xattr.key); | |
992 | ||
993 | req.emplace_key(std::move(k)); | |
994 | } | |
995 | ||
996 | if (ldlog_p1(get_context(), ceph_subsys_rgw, 15)) { | |
997 | lsubdout(get_context(), rgw, 15) | |
998 | << __func__ | |
999 | << " get keys for: " | |
1000 | << rgw_fh->object_name() | |
1001 | << " keys:" | |
1002 | << dendl; | |
1003 | for (const auto& attr: req.get_attrs()) { | |
1004 | lsubdout(get_context(), rgw, 15) | |
1005 | << "\tkey: " << attr.first << dendl; | |
1006 | } | |
1007 | } | |
1008 | ||
1e59de90 | 1009 | rc = g_rgwlib->get_fe()->execute_req(&req); |
f67539c2 TL |
1010 | rc2 = req.get_ret(); |
1011 | rc3 = ((rc == 0) && (rc2 == 0)) ? 0 : -EIO; | |
1012 | ||
1013 | /* call back w/xattr data */ | |
1014 | if (rc3 == 0) { | |
1015 | const auto& attrs = req.get_attrs(); | |
1016 | for (const auto& attr : attrs) { | |
1017 | ||
1018 | if (!attr.second.has_value()) | |
1019 | continue; | |
1020 | ||
1021 | const auto& k = attr.first; | |
1022 | const auto& v = attr.second.value(); | |
1023 | ||
1024 | /* return exposed attr keys as given, else unprefix -- | |
1025 | * yes, we could have memoized the exposed check, but | |
1026 | * to be efficient it would need to be saved with | |
1027 | * RGWGetAttrs::attrs, I think */ | |
1028 | std::string_view svk = | |
1029 | is_exposed_attr(rgw_xattrstr{const_cast<char*>(k.c_str()), | |
1030 | uint32_t(k.length())}) | |
1031 | ? k | |
1032 | : unprefix_xattr_keystr(k); | |
1033 | ||
1034 | /* skip entries not matching prefix */ | |
1035 | if (svk.empty()) | |
1036 | continue; | |
1037 | ||
1038 | rgw_xattrstr xattr_k = { const_cast<char*>(svk.data()), | |
1039 | uint32_t(svk.length())}; | |
1040 | rgw_xattrstr xattr_v = | |
1041 | {const_cast<char*>(const_cast<buffer::list&>(v).c_str()), | |
1042 | uint32_t(v.length())}; | |
1043 | rgw_xattr xattr = { xattr_k, xattr_v }; | |
1044 | rgw_xattrlist xattrlist = { &xattr, 1 }; | |
1045 | ||
1046 | cb(&xattrlist, cb_arg, RGW_GETXATTR_FLAG_NONE); | |
1047 | } | |
1048 | } | |
1049 | ||
1050 | return rc3; | |
1051 | } /* RGWLibFS::getxattrs */ | |
1052 | ||
1053 | int RGWLibFS::lsxattrs( | |
1054 | RGWFileHandle* rgw_fh, rgw_xattrstr *filter_prefix, rgw_getxattr_cb cb, | |
1055 | void *cb_arg, uint32_t flags) | |
1056 | { | |
1057 | /* cannot store on fs_root, should not on buckets? */ | |
1058 | if ((rgw_fh->is_bucket()) || | |
1059 | (rgw_fh->is_root())) { | |
1060 | return -EINVAL; | |
1061 | } | |
1062 | ||
1063 | int rc, rc2, rc3; | |
1064 | string obj_name{rgw_fh->relative_object_name2()}; | |
1065 | ||
20effc67 | 1066 | RGWGetAttrsRequest req(cct, user->clone(), rgw_fh->bucket_name(), obj_name); |
f67539c2 | 1067 | |
1e59de90 | 1068 | rc = g_rgwlib->get_fe()->execute_req(&req); |
f67539c2 TL |
1069 | rc2 = req.get_ret(); |
1070 | rc3 = ((rc == 0) && (rc2 == 0)) ? 0 : -EIO; | |
1071 | ||
1072 | /* call back w/xattr data--check for eof */ | |
1073 | if (rc3 == 0) { | |
1074 | const auto& keys = req.get_attrs(); | |
1075 | for (const auto& k : keys) { | |
1076 | ||
1077 | /* return exposed attr keys as given, else unprefix */ | |
1078 | std::string_view svk = | |
1079 | is_exposed_attr(rgw_xattrstr{const_cast<char*>(k.first.c_str()), | |
1080 | uint32_t(k.first.length())}) | |
1081 | ? k.first | |
1082 | : unprefix_xattr_keystr(k.first); | |
1083 | ||
1084 | /* skip entries not matching prefix */ | |
1085 | if (svk.empty()) | |
1086 | continue; | |
1087 | ||
1088 | rgw_xattrstr xattr_k = { const_cast<char*>(svk.data()), | |
1089 | uint32_t(svk.length())}; | |
1090 | rgw_xattrstr xattr_v = { nullptr, 0 }; | |
1091 | rgw_xattr xattr = { xattr_k, xattr_v }; | |
1092 | rgw_xattrlist xattrlist = { &xattr, 1 }; | |
1093 | ||
1094 | auto cbr = cb(&xattrlist, cb_arg, RGW_LSXATTR_FLAG_NONE); | |
1095 | if (cbr & RGW_LSXATTR_FLAG_STOP) | |
1096 | break; | |
1097 | } | |
1098 | } | |
1099 | ||
1100 | return rc3; | |
1101 | } /* RGWLibFS::lsxattrs */ | |
1102 | ||
1103 | int RGWLibFS::setxattrs(RGWFileHandle* rgw_fh, rgw_xattrlist *attrs, | |
1104 | uint32_t flags) | |
1105 | { | |
1106 | /* cannot store on fs_root, should not on buckets? */ | |
1107 | if ((rgw_fh->is_bucket()) || | |
1108 | (rgw_fh->is_root())) { | |
1109 | return -EINVAL; | |
1110 | } | |
1111 | ||
1112 | int rc, rc2; | |
1113 | string obj_name{rgw_fh->relative_object_name2()}; | |
1114 | ||
20effc67 | 1115 | RGWSetAttrsRequest req(cct, user->clone(), rgw_fh->bucket_name(), obj_name); |
f67539c2 TL |
1116 | |
1117 | for (uint32_t ix = 0; ix < attrs->xattr_cnt; ++ix) { | |
1118 | auto& xattr = attrs->xattrs[ix]; | |
1119 | buffer::list attr_bl; | |
1120 | /* don't allow storing at RGW_ATTR_META_PREFIX */ | |
1121 | if (! (xattr.key.len > 0)) | |
1122 | continue; | |
1123 | ||
1124 | /* reject lexical match with any exposed attr */ | |
1125 | if (is_exposed_attr(xattr.key)) | |
1126 | continue; | |
1127 | ||
1128 | string k = prefix_xattr_keystr(xattr.key); | |
1129 | attr_bl.append(xattr.val.val, xattr.val.len); | |
1130 | req.emplace_attr(k.c_str(), std::move(attr_bl)); | |
1131 | } | |
1132 | ||
1133 | /* don't send null requests */ | |
1134 | if (! (req.get_attrs().size() > 0)) { | |
1135 | return -EINVAL; | |
1136 | } | |
1137 | ||
1e59de90 | 1138 | rc = g_rgwlib->get_fe()->execute_req(&req); |
f67539c2 TL |
1139 | rc2 = req.get_ret(); |
1140 | ||
1141 | return (((rc == 0) && (rc2 == 0)) ? 0 : -EIO); | |
1142 | ||
1143 | } /* RGWLibFS::setxattrs */ | |
1144 | ||
1145 | int RGWLibFS::rmxattrs(RGWFileHandle* rgw_fh, rgw_xattrlist* attrs, | |
1146 | uint32_t flags) | |
1147 | { | |
1148 | /* cannot store on fs_root, should not on buckets? */ | |
1149 | if ((rgw_fh->is_bucket()) || | |
1150 | (rgw_fh->is_root())) { | |
1151 | return -EINVAL; | |
1152 | } | |
1153 | ||
1154 | int rc, rc2; | |
1155 | string obj_name{rgw_fh->relative_object_name2()}; | |
1156 | ||
20effc67 | 1157 | RGWRMAttrsRequest req(cct, user->clone(), rgw_fh->bucket_name(), obj_name); |
f67539c2 TL |
1158 | |
1159 | for (uint32_t ix = 0; ix < attrs->xattr_cnt; ++ix) { | |
1160 | auto& xattr = attrs->xattrs[ix]; | |
1161 | /* don't allow storing at RGW_ATTR_META_PREFIX */ | |
1162 | if (! (xattr.key.len > 0)) { | |
1163 | continue; | |
1164 | } | |
1165 | string k = prefix_xattr_keystr(xattr.key); | |
1166 | req.emplace_key(std::move(k)); | |
1167 | } | |
1168 | ||
1169 | /* don't send null requests */ | |
1170 | if (! (req.get_attrs().size() > 0)) { | |
1171 | return -EINVAL; | |
1172 | } | |
1173 | ||
1e59de90 | 1174 | rc = g_rgwlib->get_fe()->execute_req(&req); |
f67539c2 TL |
1175 | rc2 = req.get_ret(); |
1176 | ||
1177 | return (((rc == 0) && (rc2 == 0)) ? 0 : -EIO); | |
1178 | ||
1179 | } /* RGWLibFS::rmxattrs */ | |
1180 | ||
1181 | /* called with rgw_fh->mtx held */ | |
3efd9988 | 1182 | void RGWLibFS::update_fh(RGWFileHandle *rgw_fh) |
224ce89b WB |
1183 | { |
1184 | int rc, rc2; | |
1185 | string obj_name{rgw_fh->relative_object_name()}; | |
1186 | buffer::list ux_key, ux_attrs; | |
1187 | ||
1188 | if (rgw_fh->is_dir() && | |
1189 | (likely(! rgw_fh->is_bucket()))) { | |
1190 | obj_name += "/"; | |
1191 | } | |
1192 | ||
1193 | lsubdout(get_context(), rgw, 17) | |
1194 | << __func__ | |
3efd9988 | 1195 | << " update old versioned fh : " << obj_name |
224ce89b WB |
1196 | << dendl; |
1197 | ||
20effc67 | 1198 | RGWSetAttrsRequest req(cct, user->clone(), rgw_fh->bucket_name(), obj_name); |
224ce89b | 1199 | |
1d09f67e | 1200 | rgw_fh->encode_attrs(ux_key, ux_attrs, false); |
224ce89b | 1201 | |
224ce89b | 1202 | req.emplace_attr(RGW_ATTR_UNIX_KEY1, std::move(ux_key)); |
3efd9988 | 1203 | req.emplace_attr(RGW_ATTR_UNIX1, std::move(ux_attrs)); |
224ce89b | 1204 | |
1e59de90 | 1205 | rc = g_rgwlib->get_fe()->execute_req(&req); |
224ce89b WB |
1206 | rc2 = req.get_ret(); |
1207 | ||
1208 | if ((rc != 0) || (rc2 != 0)) { | |
1209 | lsubdout(get_context(), rgw, 17) | |
1210 | << __func__ | |
3efd9988 | 1211 | << " update fh failed : " << obj_name |
224ce89b WB |
1212 | << dendl; |
1213 | } | |
3efd9988 | 1214 | } /* RGWLibFS::update_fh */ |
224ce89b | 1215 | |
7c673cae FG |
1216 | void RGWLibFS::close() |
1217 | { | |
1218 | state.flags |= FLAG_CLOSED; | |
1219 | ||
1220 | class ObjUnref | |
1221 | { | |
1222 | RGWLibFS* fs; | |
1223 | public: | |
11fdf7f2 | 1224 | explicit ObjUnref(RGWLibFS* _fs) : fs(_fs) {} |
7c673cae FG |
1225 | void operator()(RGWFileHandle* fh) const { |
1226 | lsubdout(fs->get_context(), rgw, 5) | |
f67539c2 | 1227 | << __PRETTY_FUNCTION__ |
7c673cae FG |
1228 | << fh->name |
1229 | << " before ObjUnref refs=" << fh->get_refcnt() | |
1230 | << dendl; | |
31f18b77 | 1231 | fs->unref(fh); |
7c673cae FG |
1232 | } |
1233 | }; | |
1234 | ||
1235 | /* force cache drain, forces objects to evict */ | |
1236 | fh_cache.drain(ObjUnref(this), | |
1237 | RGWFileHandle::FHCache::FLAG_LOCK); | |
1e59de90 | 1238 | g_rgwlib->get_fe()->get_process()->unregister_fs(this); |
7c673cae FG |
1239 | rele(); |
1240 | } /* RGWLibFS::close */ | |
1241 | ||
494da23a TL |
1242 | inline std::ostream& operator<<(std::ostream &os, fh_key const &fhk) { |
1243 | os << "<fh_key: bucket="; | |
1244 | os << fhk.fh_hk.bucket; | |
1245 | os << "; object="; | |
1246 | os << fhk.fh_hk.object; | |
1247 | os << ">"; | |
1248 | return os; | |
1249 | } | |
1250 | ||
7c673cae FG |
1251 | inline std::ostream& operator<<(std::ostream &os, struct timespec const &ts) { |
1252 | os << "<timespec: tv_sec="; | |
1253 | os << ts.tv_sec; | |
1254 | os << "; tv_nsec="; | |
1255 | os << ts.tv_nsec; | |
1256 | os << ">"; | |
1257 | return os; | |
1258 | } | |
1259 | ||
1260 | std::ostream& operator<<(std::ostream &os, RGWLibFS::event const &ev) { | |
1261 | os << "<event:"; | |
1262 | switch (ev.t) { | |
1263 | case RGWLibFS::event::type::READDIR: | |
1264 | os << "type=READDIR;"; | |
1265 | break; | |
1266 | default: | |
1267 | os << "type=UNKNOWN;"; | |
1268 | break; | |
1269 | }; | |
1270 | os << "fid=" << ev.fhk.fh_hk.bucket << ":" << ev.fhk.fh_hk.object | |
1271 | << ";ts=" << ev.ts << ">"; | |
1272 | return os; | |
1273 | } | |
1274 | ||
1275 | void RGWLibFS::gc() | |
1276 | { | |
1277 | using std::get; | |
1278 | using directory = RGWFileHandle::directory; | |
1279 | ||
1280 | /* dirent invalidate timeout--basically, the upper-bound on | |
1281 | * inconsistency with the S3 namespace */ | |
1282 | auto expire_s | |
1283 | = get_context()->_conf->rgw_nfs_namespace_expire_secs; | |
1284 | ||
1285 | /* max events to gc in one cycle */ | |
c07f9fc5 | 1286 | uint32_t max_ev = get_context()->_conf->rgw_nfs_max_gc; |
7c673cae FG |
1287 | |
1288 | struct timespec now, expire_ts; | |
1289 | event_vector ve; | |
1290 | bool stop = false; | |
1291 | std::deque<event> &events = state.events; | |
1292 | ||
1293 | do { | |
1294 | (void) clock_gettime(CLOCK_MONOTONIC_COARSE, &now); | |
1295 | lsubdout(get_context(), rgw, 15) | |
1296 | << "GC: top of expire loop" | |
1297 | << " now=" << now | |
1298 | << " expire_s=" << expire_s | |
1299 | << dendl; | |
1300 | { | |
1301 | lock_guard guard(state.mtx); /* LOCKED */ | |
494da23a TL |
1302 | lsubdout(get_context(), rgw, 15) |
1303 | << "GC: processing" | |
1304 | << " count=" << events.size() | |
1305 | << " events" | |
1306 | << dendl; | |
1307 | /* just return if no events */ | |
7c673cae FG |
1308 | if (events.empty()) { |
1309 | return; | |
1310 | } | |
1311 | uint32_t _max_ev = | |
1312 | (events.size() < 500) ? max_ev : (events.size() / 4); | |
1313 | for (uint32_t ix = 0; (ix < _max_ev) && (events.size() > 0); ++ix) { | |
1314 | event& ev = events.front(); | |
1315 | expire_ts = ev.ts; | |
1316 | expire_ts.tv_sec += expire_s; | |
1317 | if (expire_ts > now) { | |
1318 | stop = true; | |
1319 | break; | |
1320 | } | |
1321 | ve.push_back(ev); | |
1322 | events.pop_front(); | |
1323 | } | |
1324 | } /* anon */ | |
1325 | /* !LOCKED */ | |
1326 | for (auto& ev : ve) { | |
1327 | lsubdout(get_context(), rgw, 15) | |
1328 | << "try-expire ev: " << ev << dendl; | |
1329 | if (likely(ev.t == event::type::READDIR)) { | |
1330 | RGWFileHandle* rgw_fh = lookup_handle(ev.fhk.fh_hk); | |
1331 | lsubdout(get_context(), rgw, 15) | |
1332 | << "ev rgw_fh: " << rgw_fh << dendl; | |
1333 | if (rgw_fh) { | |
1334 | RGWFileHandle::directory* d; | |
1335 | if (unlikely(! rgw_fh->is_dir())) { | |
1336 | lsubdout(get_context(), rgw, 0) | |
1337 | << __func__ | |
1338 | << " BUG non-directory found with READDIR event " | |
1339 | << "(" << rgw_fh->bucket_name() << "," | |
1340 | << rgw_fh->object_name() << ")" | |
1341 | << dendl; | |
1342 | goto rele; | |
1343 | } | |
1344 | /* maybe clear state */ | |
1345 | d = get<directory>(&rgw_fh->variant_type); | |
1346 | if (d) { | |
1347 | struct timespec ev_ts = ev.ts; | |
1348 | lock_guard guard(rgw_fh->mtx); | |
1349 | struct timespec d_last_readdir = d->last_readdir; | |
1350 | if (unlikely(ev_ts < d_last_readdir)) { | |
1351 | /* readdir cycle in progress, don't invalidate */ | |
1352 | lsubdout(get_context(), rgw, 15) | |
1353 | << "GC: delay expiration for " | |
1354 | << rgw_fh->object_name() | |
1355 | << " ev.ts=" << ev_ts | |
1356 | << " last_readdir=" << d_last_readdir | |
1357 | << dendl; | |
1358 | continue; | |
1359 | } else { | |
1360 | lsubdout(get_context(), rgw, 15) | |
1361 | << "GC: expiring " | |
1362 | << rgw_fh->object_name() | |
1363 | << dendl; | |
1364 | rgw_fh->clear_state(); | |
1365 | rgw_fh->invalidate(); | |
1366 | } | |
1367 | } | |
1368 | rele: | |
1369 | unref(rgw_fh); | |
1370 | } /* rgw_fh */ | |
1371 | } /* event::type::READDIR */ | |
1372 | } /* ev */ | |
1373 | ve.clear(); | |
1374 | } while (! (stop || shutdown)); | |
1375 | } /* RGWLibFS::gc */ | |
1376 | ||
1377 | std::ostream& operator<<(std::ostream &os, | |
1378 | RGWFileHandle const &rgw_fh) | |
1379 | { | |
1380 | const auto& fhk = rgw_fh.get_key(); | |
1381 | const auto& fh = const_cast<RGWFileHandle&>(rgw_fh).get_fh(); | |
1382 | os << "<RGWFileHandle:"; | |
1383 | os << "addr=" << &rgw_fh << ";"; | |
1384 | switch (fh->fh_type) { | |
1385 | case RGW_FS_TYPE_DIRECTORY: | |
1386 | os << "type=DIRECTORY;"; | |
1387 | break; | |
1388 | case RGW_FS_TYPE_FILE: | |
1389 | os << "type=FILE;"; | |
1390 | break; | |
1391 | default: | |
1392 | os << "type=UNKNOWN;"; | |
1393 | break; | |
1394 | }; | |
1395 | os << "fid=" << fhk.fh_hk.bucket << ":" << fhk.fh_hk.object << ";"; | |
1396 | os << "name=" << rgw_fh.object_name() << ";"; | |
1397 | os << "refcnt=" << rgw_fh.get_refcnt() << ";"; | |
1398 | os << ">"; | |
1399 | return os; | |
1400 | } | |
1401 | ||
1402 | RGWFileHandle::~RGWFileHandle() { | |
28e407b8 AA |
1403 | /* !recycle case, handle may STILL be in handle table, BUT |
1404 | * the partition lock is not held in this path */ | |
1405 | if (fh_hook.is_linked()) { | |
1406 | fs->fh_cache.remove(fh.fh_hk.object, this, FHCache::FLAG_LOCK); | |
1407 | } | |
7c673cae | 1408 | /* cond-unref parent */ |
3efd9988 | 1409 | if (parent && (! parent->is_mount())) { |
7c673cae FG |
1410 | /* safe because if parent->unref causes its deletion, |
1411 | * there are a) by refcnt, no other objects/paths pointing | |
1412 | * to it and b) by the semantics of valid iteration of | |
1413 | * fh_lru (observed, e.g., by cohort_lru<T,...>::drain()) | |
1414 | * no unsafe iterators reaching it either--n.b., this constraint | |
1415 | * is binding oncode which may in future attempt to e.g., | |
1416 | * cause the eviction of objects in LRU order */ | |
31f18b77 | 1417 | (void) get_fs()->unref(parent); |
7c673cae FG |
1418 | } |
1419 | } | |
1420 | ||
494da23a TL |
1421 | fh_key RGWFileHandle::make_fhk(const std::string& name) |
1422 | { | |
1423 | std::string tenant = get_fs()->get_user()->user_id.to_str(); | |
1424 | if (depth == 0) { | |
1425 | /* S3 bucket -- assert mount-at-bucket case reaches here */ | |
1426 | return fh_key(name, name, tenant); | |
1427 | } else { | |
1428 | std::string key_name = make_key_name(name.c_str()); | |
1429 | return fh_key(fhk.fh_hk.bucket, key_name.c_str(), tenant); | |
1430 | } | |
1431 | } | |
1432 | ||
7c673cae | 1433 | void RGWFileHandle::encode_attrs(ceph::buffer::list& ux_key1, |
1d09f67e TL |
1434 | ceph::buffer::list& ux_attrs1, |
1435 | bool inc_ov) | |
7c673cae | 1436 | { |
11fdf7f2 | 1437 | using ceph::encode; |
7c673cae | 1438 | fh_key fhk(this->fh.fh_hk); |
11fdf7f2 | 1439 | encode(fhk, ux_key1); |
1d09f67e TL |
1440 | bool need_ondisk_version = |
1441 | (fh.fh_type == RGW_FS_TYPE_FILE || | |
1442 | fh.fh_type == RGW_FS_TYPE_SYMBOLIC_LINK); | |
1443 | if (need_ondisk_version && | |
1444 | file_ondisk_version < 0) { | |
1445 | file_ondisk_version = 0; | |
1446 | } | |
11fdf7f2 | 1447 | encode(*this, ux_attrs1); |
1d09f67e TL |
1448 | if (need_ondisk_version && inc_ov) { |
1449 | file_ondisk_version++; | |
1450 | } | |
7c673cae FG |
1451 | } /* RGWFileHandle::encode_attrs */ |
1452 | ||
3efd9988 FG |
1453 | DecodeAttrsResult RGWFileHandle::decode_attrs(const ceph::buffer::list* ux_key1, |
1454 | const ceph::buffer::list* ux_attrs1) | |
7c673cae | 1455 | { |
11fdf7f2 | 1456 | using ceph::decode; |
3efd9988 | 1457 | DecodeAttrsResult dar { false, false }; |
7c673cae | 1458 | fh_key fhk; |
11fdf7f2 TL |
1459 | auto bl_iter_key1 = ux_key1->cbegin(); |
1460 | decode(fhk, bl_iter_key1); | |
494da23a | 1461 | get<0>(dar) = true; |
7c673cae | 1462 | |
1d09f67e TL |
1463 | // decode to a temporary file handle which may not be |
1464 | // copied to the current file handle if its file_ondisk_version | |
1465 | // is not newer | |
1466 | RGWFileHandle tmp_fh(fs); | |
1467 | tmp_fh.fh.fh_type = fh.fh_type; | |
11fdf7f2 | 1468 | auto bl_iter_unix1 = ux_attrs1->cbegin(); |
1d09f67e TL |
1469 | decode(tmp_fh, bl_iter_unix1); |
1470 | ||
1471 | fh.fh_type = tmp_fh.fh.fh_type; | |
1472 | // for file handles that represent files and whose file_ondisk_version | |
1473 | // is newer, no updates are need, otherwise, go updating the current | |
1474 | // file handle | |
1475 | if (!((fh.fh_type == RGW_FS_TYPE_FILE || | |
1476 | fh.fh_type == RGW_FS_TYPE_SYMBOLIC_LINK) && | |
1477 | file_ondisk_version >= tmp_fh.file_ondisk_version)) { | |
1478 | // make sure the following "encode" always encode a greater version | |
1479 | file_ondisk_version = tmp_fh.file_ondisk_version + 1; | |
1480 | state.dev = tmp_fh.state.dev; | |
1481 | state.size = tmp_fh.state.size; | |
1482 | state.nlink = tmp_fh.state.nlink; | |
1483 | state.owner_uid = tmp_fh.state.owner_uid; | |
1484 | state.owner_gid = tmp_fh.state.owner_gid; | |
1485 | state.unix_mode = tmp_fh.state.unix_mode; | |
1486 | state.ctime = tmp_fh.state.ctime; | |
1487 | state.mtime = tmp_fh.state.mtime; | |
1488 | state.atime = tmp_fh.state.atime; | |
1489 | state.version = tmp_fh.state.version; | |
1490 | } | |
1491 | ||
3efd9988 FG |
1492 | if (this->state.version < 2) { |
1493 | get<1>(dar) = true; | |
1494 | } | |
224ce89b | 1495 | |
3efd9988 | 1496 | return dar; |
7c673cae FG |
1497 | } /* RGWFileHandle::decode_attrs */ |
1498 | ||
f91f0fd5 | 1499 | bool RGWFileHandle::reclaim(const cohort::lru::ObjectFactory* newobj_fac) { |
7c673cae FG |
1500 | lsubdout(fs->get_context(), rgw, 17) |
1501 | << __func__ << " " << *this | |
1502 | << dendl; | |
f91f0fd5 TL |
1503 | auto factory = dynamic_cast<const RGWFileHandle::Factory*>(newobj_fac); |
1504 | if (factory == nullptr) { | |
1505 | return false; | |
1506 | } | |
1507 | /* make sure the reclaiming object is the same partiton with newobject factory, | |
1508 | * then we can recycle the object, and replace with newobject */ | |
1509 | if (!fs->fh_cache.is_same_partition(factory->fhk.fh_hk.object, fh.fh_hk.object)) { | |
1510 | return false; | |
1511 | } | |
b32b8144 | 1512 | /* in the non-delete case, handle may still be in handle table */ |
7c673cae | 1513 | if (fh_hook.is_linked()) { |
b32b8144 FG |
1514 | /* in this case, we are being called from a context which holds |
1515 | * the partition lock */ | |
1516 | fs->fh_cache.remove(fh.fh_hk.object, this, FHCache::FLAG_NONE); | |
7c673cae FG |
1517 | } |
1518 | return true; | |
1519 | } /* RGWFileHandle::reclaim */ | |
1520 | ||
1521 | bool RGWFileHandle::has_children() const | |
1522 | { | |
1523 | if (unlikely(! is_dir())) | |
1524 | return false; | |
1525 | ||
f67539c2 | 1526 | RGWRMdirCheck req(fs->get_context(), |
1e59de90 | 1527 | g_rgwlib->get_driver()->get_user(fs->get_user()->user_id), |
f67539c2 | 1528 | this); |
1e59de90 | 1529 | int rc = g_rgwlib->get_fe()->execute_req(&req); |
7c673cae FG |
1530 | if (! rc) { |
1531 | return req.valid && req.has_children; | |
1532 | } | |
1533 | ||
1534 | return false; | |
1535 | } | |
1536 | ||
3efd9988 FG |
1537 | std::ostream& operator<<(std::ostream &os, |
1538 | RGWFileHandle::readdir_offset const &offset) | |
1539 | { | |
1540 | using boost::get; | |
1541 | if (unlikely(!! get<uint64_t*>(&offset))) { | |
1542 | uint64_t* ioff = get<uint64_t*>(offset); | |
1543 | os << *ioff; | |
1544 | } | |
1545 | else | |
1546 | os << get<const char*>(offset); | |
1547 | return os; | |
1548 | } | |
1549 | ||
1550 | int RGWFileHandle::readdir(rgw_readdir_cb rcb, void *cb_arg, | |
1551 | readdir_offset offset, | |
7c673cae FG |
1552 | bool *eof, uint32_t flags) |
1553 | { | |
1554 | using event = RGWLibFS::event; | |
3efd9988 | 1555 | using boost::get; |
7c673cae FG |
1556 | int rc = 0; |
1557 | struct timespec now; | |
1558 | CephContext* cct = fs->get_context(); | |
1559 | ||
494da23a TL |
1560 | lsubdout(cct, rgw, 10) |
1561 | << __func__ << " readdir called on " | |
1562 | << object_name() | |
1563 | << dendl; | |
1564 | ||
7c673cae FG |
1565 | directory* d = get<directory>(&variant_type); |
1566 | if (d) { | |
1567 | (void) clock_gettime(CLOCK_MONOTONIC_COARSE, &now); /* !LOCKED */ | |
1568 | lock_guard guard(mtx); | |
1569 | d->last_readdir = now; | |
1570 | } | |
1571 | ||
3efd9988 | 1572 | bool initial_off; |
494da23a TL |
1573 | char* mk{nullptr}; |
1574 | ||
3efd9988 | 1575 | if (likely(!! get<const char*>(&offset))) { |
494da23a TL |
1576 | mk = const_cast<char*>(get<const char*>(offset)); |
1577 | initial_off = !mk; | |
3efd9988 FG |
1578 | } else { |
1579 | initial_off = (*get<uint64_t*>(offset) == 0); | |
1580 | } | |
1581 | ||
7c673cae | 1582 | if (is_root()) { |
1e59de90 | 1583 | RGWListBucketsRequest req(cct, g_rgwlib->get_driver()->get_user(fs->get_user()->user_id), |
f67539c2 | 1584 | this, rcb, cb_arg, offset); |
1e59de90 | 1585 | rc = g_rgwlib->get_fe()->execute_req(&req); |
7c673cae FG |
1586 | if (! rc) { |
1587 | (void) clock_gettime(CLOCK_MONOTONIC_COARSE, &now); /* !LOCKED */ | |
1588 | lock_guard guard(mtx); | |
1589 | state.atime = now; | |
3efd9988 | 1590 | if (initial_off) |
7c673cae FG |
1591 | set_nlink(2); |
1592 | inc_nlink(req.d_count); | |
1593 | *eof = req.eof(); | |
7c673cae FG |
1594 | } |
1595 | } else { | |
1e59de90 | 1596 | RGWReaddirRequest req(cct, g_rgwlib->get_driver()->get_user(fs->get_user()->user_id), |
f67539c2 | 1597 | this, rcb, cb_arg, offset); |
1e59de90 | 1598 | rc = g_rgwlib->get_fe()->execute_req(&req); |
7c673cae FG |
1599 | if (! rc) { |
1600 | (void) clock_gettime(CLOCK_MONOTONIC_COARSE, &now); /* !LOCKED */ | |
1601 | lock_guard guard(mtx); | |
1602 | state.atime = now; | |
3efd9988 | 1603 | if (initial_off) |
7c673cae FG |
1604 | set_nlink(2); |
1605 | inc_nlink(req.d_count); | |
1606 | *eof = req.eof(); | |
7c673cae FG |
1607 | } |
1608 | } | |
1609 | ||
494da23a TL |
1610 | event ev(event::type::READDIR, get_key(), state.atime); |
1611 | lock_guard sguard(fs->state.mtx); | |
1612 | fs->state.push_event(ev); | |
1613 | ||
7c673cae FG |
1614 | lsubdout(fs->get_context(), rgw, 15) |
1615 | << __func__ | |
1616 | << " final link count=" << state.nlink | |
1617 | << dendl; | |
1618 | ||
1619 | return rc; | |
1620 | } /* RGWFileHandle::readdir */ | |
1621 | ||
1622 | int RGWFileHandle::write(uint64_t off, size_t len, size_t *bytes_written, | |
1623 | void *buffer) | |
1624 | { | |
1625 | using std::get; | |
1626 | using WriteCompletion = RGWLibFS::WriteCompletion; | |
1627 | ||
1628 | lock_guard guard(mtx); | |
1629 | ||
1630 | int rc = 0; | |
1631 | ||
1632 | file* f = get<file>(&variant_type); | |
1633 | if (! f) | |
1634 | return -EISDIR; | |
1635 | ||
1636 | if (deleted()) { | |
1637 | lsubdout(fs->get_context(), rgw, 5) | |
1638 | << __func__ | |
1639 | << " write attempted on deleted object " | |
1640 | << this->object_name() | |
1641 | << dendl; | |
1642 | /* zap write transaction, if any */ | |
1643 | if (f->write_req) { | |
1644 | delete f->write_req; | |
1645 | f->write_req = nullptr; | |
1646 | } | |
1647 | return -ESTALE; | |
1648 | } | |
1649 | ||
1650 | if (! f->write_req) { | |
1651 | /* guard--we do not support (e.g., COW-backed) partial writes */ | |
1652 | if (off != 0) { | |
1653 | lsubdout(fs->get_context(), rgw, 5) | |
1654 | << __func__ | |
1655 | << " " << object_name() | |
1656 | << " non-0 initial write position " << off | |
11fdf7f2 | 1657 | << " (mounting with -o sync required)" |
7c673cae FG |
1658 | << dendl; |
1659 | return -EIO; | |
1660 | } | |
1661 | ||
1e59de90 TL |
1662 | const RGWProcessEnv& penv = g_rgwlib->get_fe()->get_process()->get_env(); |
1663 | ||
7c673cae FG |
1664 | /* start */ |
1665 | std::string object_name = relative_object_name(); | |
1666 | f->write_req = | |
1e59de90 TL |
1667 | new RGWWriteRequest(g_rgwlib->get_driver(), penv, |
1668 | g_rgwlib->get_driver()->get_user(fs->get_user()->user_id), | |
f67539c2 | 1669 | this, bucket_name(), object_name); |
1e59de90 | 1670 | rc = g_rgwlib->get_fe()->start_req(f->write_req); |
7c673cae FG |
1671 | if (rc < 0) { |
1672 | lsubdout(fs->get_context(), rgw, 5) | |
1673 | << __func__ | |
1674 | << this->object_name() | |
1675 | << " write start failed " << off | |
1676 | << " (" << rc << ")" | |
1677 | << dendl; | |
1678 | /* zap failed write transaction */ | |
1679 | delete f->write_req; | |
1680 | f->write_req = nullptr; | |
1681 | return -EIO; | |
1682 | } else { | |
1683 | if (stateless_open()) { | |
1684 | /* start write timer */ | |
1685 | f->write_req->timer_id = | |
1686 | RGWLibFS::write_timer.add_event( | |
1687 | std::chrono::seconds(RGWLibFS::write_completion_interval_s), | |
1688 | WriteCompletion(*this)); | |
1689 | } | |
1690 | } | |
1691 | } | |
1692 | ||
3efd9988 FG |
1693 | int overlap = 0; |
1694 | if ((static_cast<off_t>(off) < f->write_req->real_ofs) && | |
1695 | ((f->write_req->real_ofs - off) <= len)) { | |
1696 | overlap = f->write_req->real_ofs - off; | |
1697 | off = f->write_req->real_ofs; | |
1698 | buffer = static_cast<char*>(buffer) + overlap; | |
1699 | len -= overlap; | |
1700 | } | |
1701 | ||
7c673cae FG |
1702 | buffer::list bl; |
1703 | /* XXXX */ | |
1704 | #if 0 | |
1705 | bl.push_back( | |
1706 | buffer::create_static(len, static_cast<char*>(buffer))); | |
1707 | #else | |
1708 | bl.push_back( | |
1709 | buffer::copy(static_cast<char*>(buffer), len)); | |
1710 | #endif | |
1711 | ||
1712 | f->write_req->put_data(off, bl); | |
1713 | rc = f->write_req->exec_continue(); | |
1714 | ||
1715 | if (rc == 0) { | |
1716 | size_t min_size = off + len; | |
1717 | if (min_size > get_size()) | |
1718 | set_size(min_size); | |
1719 | if (stateless_open()) { | |
1720 | /* bump write timer */ | |
1721 | RGWLibFS::write_timer.adjust_event( | |
1722 | f->write_req->timer_id, std::chrono::seconds(10)); | |
1723 | } | |
1724 | } else { | |
1725 | /* continuation failed (e.g., non-contiguous write position) */ | |
1726 | lsubdout(fs->get_context(), rgw, 5) | |
1727 | << __func__ | |
1728 | << object_name() | |
1729 | << " failed write at position " << off | |
1730 | << " (fails write transaction) " | |
1731 | << dendl; | |
1732 | /* zap failed write transaction */ | |
1733 | delete f->write_req; | |
1734 | f->write_req = nullptr; | |
1735 | rc = -EIO; | |
1736 | } | |
1737 | ||
3efd9988 | 1738 | *bytes_written = (rc == 0) ? (len + overlap) : 0; |
7c673cae FG |
1739 | return rc; |
1740 | } /* RGWFileHandle::write */ | |
1741 | ||
1742 | int RGWFileHandle::write_finish(uint32_t flags) | |
1743 | { | |
1744 | unique_lock guard{mtx, std::defer_lock}; | |
1745 | int rc = 0; | |
1746 | ||
1747 | if (! (flags & FLAG_LOCKED)) { | |
1748 | guard.lock(); | |
1749 | } | |
1750 | ||
1751 | file* f = get<file>(&variant_type); | |
1752 | if (f && (f->write_req)) { | |
1753 | lsubdout(fs->get_context(), rgw, 10) | |
1754 | << __func__ | |
1755 | << " finishing write trans on " << object_name() | |
1756 | << dendl; | |
1e59de90 | 1757 | rc = g_rgwlib->get_fe()->finish_req(f->write_req); |
7c673cae FG |
1758 | if (! rc) { |
1759 | rc = f->write_req->get_ret(); | |
1760 | } | |
1761 | delete f->write_req; | |
1762 | f->write_req = nullptr; | |
1763 | } | |
1764 | ||
1765 | return rc; | |
1766 | } /* RGWFileHandle::write_finish */ | |
1767 | ||
1768 | int RGWFileHandle::close() | |
1769 | { | |
1770 | lock_guard guard(mtx); | |
1771 | ||
1772 | int rc = write_finish(FLAG_LOCKED); | |
1773 | ||
1774 | flags &= ~FLAG_OPEN; | |
31f18b77 FG |
1775 | flags &= ~FLAG_STATELESS_OPEN; |
1776 | ||
7c673cae FG |
1777 | return rc; |
1778 | } /* RGWFileHandle::close */ | |
1779 | ||
1780 | RGWFileHandle::file::~file() | |
1781 | { | |
1782 | delete write_req; | |
1783 | } | |
1784 | ||
1785 | void RGWFileHandle::clear_state() | |
1786 | { | |
1787 | directory* d = get<directory>(&variant_type); | |
1788 | if (d) { | |
1789 | state.nlink = 2; | |
1790 | d->last_marker = rgw_obj_key{}; | |
1791 | } | |
1792 | } | |
1793 | ||
494da23a TL |
1794 | void RGWFileHandle::advance_mtime(uint32_t flags) { |
1795 | /* intended for use on directories, fast-forward mtime so as to | |
1796 | * ensure a new, higher value for the change attribute */ | |
1797 | unique_lock uniq(mtx, std::defer_lock); | |
1798 | if (likely(! (flags & RGWFileHandle::FLAG_LOCKED))) { | |
1799 | uniq.lock(); | |
1800 | } | |
1801 | ||
1802 | /* advance mtime only if stored mtime is older than the | |
1803 | * configured namespace expiration */ | |
1804 | auto now = real_clock::now(); | |
1805 | auto cmptime = state.mtime; | |
1806 | cmptime.tv_sec += | |
1807 | fs->get_context()->_conf->rgw_nfs_namespace_expire_secs; | |
1808 | if (cmptime < real_clock::to_timespec(now)) { | |
1809 | /* sets ctime as well as mtime, to avoid masking updates should | |
1810 | * ctime inexplicably hold a higher value */ | |
1811 | set_times(now); | |
1812 | } | |
1813 | } | |
1814 | ||
7c673cae FG |
1815 | void RGWFileHandle::invalidate() { |
1816 | RGWLibFS *fs = get_fs(); | |
1817 | if (fs->invalidate_cb) { | |
1818 | fs->invalidate_cb(fs->invalidate_arg, get_key().fh_hk); | |
1819 | } | |
1820 | } | |
1821 | ||
1822 | int RGWWriteRequest::exec_start() { | |
1e59de90 | 1823 | req_state* state = get_state(); |
f67539c2 TL |
1824 | |
1825 | /* Object needs a bucket from this point */ | |
1826 | state->object->set_bucket(state->bucket.get()); | |
7c673cae | 1827 | |
224ce89b | 1828 | auto compression_type = |
1e59de90 | 1829 | get_driver()->get_compression_type(state->bucket->get_placement_rule()); |
224ce89b | 1830 | |
7c673cae | 1831 | /* not obviously supportable */ |
11fdf7f2 TL |
1832 | ceph_assert(! dlo_manifest); |
1833 | ceph_assert(! slo_info); | |
7c673cae FG |
1834 | |
1835 | perfcounter->inc(l_rgw_put); | |
1836 | op_ret = -EINVAL; | |
1837 | ||
f67539c2 TL |
1838 | if (state->object->empty()) { |
1839 | ldout(state->cct, 0) << __func__ << " called on empty object" << dendl; | |
7c673cae FG |
1840 | goto done; |
1841 | } | |
1842 | ||
f67539c2 | 1843 | op_ret = get_params(null_yield); |
7c673cae FG |
1844 | if (op_ret < 0) |
1845 | goto done; | |
1846 | ||
f67539c2 | 1847 | op_ret = get_system_versioning_params(state, &olh_epoch, &version_id); |
7c673cae FG |
1848 | if (op_ret < 0) { |
1849 | goto done; | |
1850 | } | |
1851 | ||
1852 | /* user-supplied MD5 check skipped (not supplied) */ | |
1853 | /* early quota check skipped--we don't have size yet */ | |
1854 | /* skipping user-supplied etag--we might have one in future, but | |
1855 | * like data it and other attrs would arrive after open */ | |
11fdf7f2 | 1856 | |
f67539c2 | 1857 | aio.emplace(state->cct->_conf->rgw_put_obj_min_window_size); |
11fdf7f2 | 1858 | |
f67539c2 | 1859 | if (state->bucket->versioning_enabled()) { |
11fdf7f2 | 1860 | if (!version_id.empty()) { |
f67539c2 | 1861 | state->object->set_instance(version_id); |
11fdf7f2 | 1862 | } else { |
f67539c2 TL |
1863 | state->object->gen_rand_obj_instance_name(); |
1864 | version_id = state->object->get_instance(); | |
11fdf7f2 TL |
1865 | } |
1866 | } | |
1e59de90 TL |
1867 | processor = get_driver()->get_atomic_writer(this, state->yield, state->object.get(), |
1868 | state->bucket_owner.get_id(), | |
20effc67 | 1869 | &state->dest_placement, 0, state->req_id); |
11fdf7f2 | 1870 | |
f67539c2 | 1871 | op_ret = processor->prepare(state->yield); |
224ce89b | 1872 | if (op_ret < 0) { |
f67539c2 | 1873 | ldout(state->cct, 20) << "processor->prepare() returned ret=" << op_ret |
224ce89b WB |
1874 | << dendl; |
1875 | goto done; | |
1876 | } | |
11fdf7f2 | 1877 | filter = &*processor; |
224ce89b | 1878 | if (compression_type != "none") { |
f67539c2 | 1879 | plugin = Compressor::create(state->cct, compression_type); |
11fdf7f2 | 1880 | if (! plugin) { |
f67539c2 | 1881 | ldout(state->cct, 1) << "Cannot load plugin for rgw_compression_type " |
11fdf7f2 TL |
1882 | << compression_type << dendl; |
1883 | } else { | |
f67539c2 | 1884 | compressor.emplace(state->cct, plugin, filter); |
11fdf7f2 TL |
1885 | filter = &*compressor; |
1886 | } | |
224ce89b | 1887 | } |
7c673cae FG |
1888 | |
1889 | done: | |
1890 | return op_ret; | |
1891 | } /* exec_start */ | |
1892 | ||
1893 | int RGWWriteRequest::exec_continue() | |
1894 | { | |
1e59de90 | 1895 | req_state* state = get_state(); |
7c673cae FG |
1896 | op_ret = 0; |
1897 | ||
1898 | /* check guards (e.g., contig write) */ | |
11fdf7f2 | 1899 | if (eio) { |
f67539c2 | 1900 | ldout(state->cct, 5) |
11fdf7f2 TL |
1901 | << " chunks arrived in wrong order" |
1902 | << " (mounting with -o sync required)" | |
1903 | << dendl; | |
1904 | return -EIO; | |
1905 | } | |
1906 | ||
1e59de90 | 1907 | op_ret = state->bucket->check_quota(this, quota, real_ofs, null_yield, true); |
11fdf7f2 TL |
1908 | /* max_size exceed */ |
1909 | if (op_ret < 0) | |
7c673cae FG |
1910 | return -EIO; |
1911 | ||
1912 | size_t len = data.length(); | |
1913 | if (! len) | |
1914 | return 0; | |
1915 | ||
11fdf7f2 TL |
1916 | hash.Update((const unsigned char *)data.c_str(), data.length()); |
1917 | op_ret = filter->process(std::move(data), ofs); | |
7c673cae | 1918 | if (op_ret < 0) { |
11fdf7f2 | 1919 | goto done; |
7c673cae FG |
1920 | } |
1921 | bytes_written += len; | |
1922 | ||
1923 | done: | |
1924 | return op_ret; | |
1925 | } /* exec_continue */ | |
1926 | ||
1927 | int RGWWriteRequest::exec_finish() | |
1928 | { | |
1929 | buffer::list bl, aclbl, ux_key, ux_attrs; | |
1930 | map<string, string>::iterator iter; | |
1931 | char calc_md5[CEPH_CRYPTO_MD5_DIGESTSIZE * 2 + 1]; | |
1932 | unsigned char m[CEPH_CRYPTO_MD5_DIGESTSIZE]; | |
1e59de90 | 1933 | req_state* state = get_state(); |
7c673cae FG |
1934 | |
1935 | size_t osize = rgw_fh->get_size(); | |
1936 | struct timespec octime = rgw_fh->get_ctime(); | |
1937 | struct timespec omtime = rgw_fh->get_mtime(); | |
1938 | real_time appx_t = real_clock::now(); | |
1939 | ||
f67539c2 TL |
1940 | state->obj_size = bytes_written; |
1941 | perfcounter->inc(l_rgw_put_b, state->obj_size); | |
7c673cae | 1942 | |
11fdf7f2 | 1943 | // flush data in filters |
f67539c2 | 1944 | op_ret = filter->process({}, state->obj_size); |
11fdf7f2 TL |
1945 | if (op_ret < 0) { |
1946 | goto done; | |
1947 | } | |
1948 | ||
1e59de90 | 1949 | op_ret = state->bucket->check_quota(this, quota, state->obj_size, null_yield, true); |
11fdf7f2 | 1950 | /* max_size exceed */ |
7c673cae FG |
1951 | if (op_ret < 0) { |
1952 | goto done; | |
1953 | } | |
1954 | ||
1955 | hash.Final(m); | |
1956 | ||
224ce89b WB |
1957 | if (compressor && compressor->is_compressed()) { |
1958 | bufferlist tmp; | |
1959 | RGWCompressionInfo cs_info; | |
1960 | cs_info.compression_type = plugin->get_type_name(); | |
f67539c2 | 1961 | cs_info.orig_size = state->obj_size; |
224ce89b | 1962 | cs_info.blocks = std::move(compressor->get_compression_blocks()); |
11fdf7f2 | 1963 | encode(cs_info, tmp); |
224ce89b | 1964 | attrs[RGW_ATTR_COMPRESSION] = tmp; |
b3b6e05e | 1965 | ldpp_dout(this, 20) << "storing " << RGW_ATTR_COMPRESSION |
224ce89b WB |
1966 | << " with type=" << cs_info.compression_type |
1967 | << ", orig_size=" << cs_info.orig_size | |
1968 | << ", blocks=" << cs_info.blocks.size() << dendl; | |
1969 | } | |
1970 | ||
7c673cae FG |
1971 | buf_to_hex(m, CEPH_CRYPTO_MD5_DIGESTSIZE, calc_md5); |
1972 | etag = calc_md5; | |
1973 | ||
1974 | bl.append(etag.c_str(), etag.size() + 1); | |
1975 | emplace_attr(RGW_ATTR_ETAG, std::move(bl)); | |
1976 | ||
1977 | policy.encode(aclbl); | |
1978 | emplace_attr(RGW_ATTR_ACL, std::move(aclbl)); | |
1979 | ||
1980 | /* unix attrs */ | |
1981 | rgw_fh->set_mtime(real_clock::to_timespec(appx_t)); | |
1982 | rgw_fh->set_ctime(real_clock::to_timespec(appx_t)); | |
1983 | rgw_fh->set_size(bytes_written); | |
1984 | rgw_fh->encode_attrs(ux_key, ux_attrs); | |
1985 | ||
1986 | emplace_attr(RGW_ATTR_UNIX_KEY1, std::move(ux_key)); | |
1987 | emplace_attr(RGW_ATTR_UNIX1, std::move(ux_attrs)); | |
1988 | ||
f67539c2 | 1989 | for (iter = state->generic_attrs.begin(); iter != state->generic_attrs.end(); |
7c673cae FG |
1990 | ++iter) { |
1991 | buffer::list& attrbl = attrs[iter->first]; | |
1992 | const string& val = iter->second; | |
1993 | attrbl.append(val.c_str(), val.size() + 1); | |
1994 | } | |
1995 | ||
b3b6e05e | 1996 | op_ret = rgw_get_request_metadata(this, state->cct, state->info, attrs); |
3efd9988 FG |
1997 | if (op_ret < 0) { |
1998 | goto done; | |
1999 | } | |
7c673cae FG |
2000 | encode_delete_at_attr(delete_at, attrs); |
2001 | ||
2002 | /* Add a custom metadata to expose the information whether an object | |
2003 | * is an SLO or not. Appending the attribute must be performed AFTER | |
2004 | * processing any input from user in order to prohibit overwriting. */ | |
2005 | if (unlikely(!! slo_info)) { | |
2006 | buffer::list slo_userindicator_bl; | |
11fdf7f2 TL |
2007 | using ceph::encode; |
2008 | encode("True", slo_userindicator_bl); | |
7c673cae FG |
2009 | emplace_attr(RGW_ATTR_SLO_UINDICATOR, std::move(slo_userindicator_bl)); |
2010 | } | |
2011 | ||
f67539c2 | 2012 | op_ret = processor->complete(state->obj_size, etag, &mtime, real_time(), attrs, |
7c673cae | 2013 | (delete_at ? *delete_at : real_time()), |
9f95a23c | 2014 | if_match, if_nomatch, nullptr, nullptr, nullptr, |
f67539c2 | 2015 | state->yield); |
7c673cae FG |
2016 | if (op_ret != 0) { |
2017 | /* revert attr updates */ | |
2018 | rgw_fh->set_mtime(omtime); | |
2019 | rgw_fh->set_ctime(octime); | |
2020 | rgw_fh->set_size(osize); | |
2021 | } | |
2022 | ||
2023 | done: | |
f67539c2 | 2024 | perfcounter->tinc(l_rgw_put_lat, state->time_elapsed()); |
7c673cae FG |
2025 | return op_ret; |
2026 | } /* exec_finish */ | |
2027 | ||
2028 | } /* namespace rgw */ | |
2029 | ||
2030 | /* librgw */ | |
2031 | extern "C" { | |
2032 | ||
2033 | void rgwfile_version(int *major, int *minor, int *extra) | |
2034 | { | |
2035 | if (major) | |
2036 | *major = LIBRGW_FILE_VER_MAJOR; | |
2037 | if (minor) | |
2038 | *minor = LIBRGW_FILE_VER_MINOR; | |
2039 | if (extra) | |
2040 | *extra = LIBRGW_FILE_VER_EXTRA; | |
2041 | } | |
2042 | ||
2043 | /* | |
2044 | attach rgw namespace | |
2045 | */ | |
2046 | int rgw_mount(librgw_t rgw, const char *uid, const char *acc_key, | |
2047 | const char *sec_key, struct rgw_fs **rgw_fs, | |
2048 | uint32_t flags) | |
2049 | { | |
2050 | int rc = 0; | |
2051 | ||
2052 | /* stash access data for "mount" */ | |
2053 | RGWLibFS* new_fs = new RGWLibFS(static_cast<CephContext*>(rgw), uid, acc_key, | |
3efd9988 | 2054 | sec_key, "/"); |
11fdf7f2 | 2055 | ceph_assert(new_fs); |
3efd9988 | 2056 | |
1e59de90 TL |
2057 | const DoutPrefix dp(g_rgwlib->get_driver()->ctx(), dout_subsys, "rgw mount: "); |
2058 | rc = new_fs->authorize(&dp, g_rgwlib->get_driver()); | |
3efd9988 FG |
2059 | if (rc != 0) { |
2060 | delete new_fs; | |
2061 | return -EINVAL; | |
2062 | } | |
2063 | ||
2064 | /* register fs for shared gc */ | |
1e59de90 | 2065 | g_rgwlib->get_fe()->get_process()->register_fs(new_fs); |
3efd9988 FG |
2066 | |
2067 | struct rgw_fs *fs = new_fs->get_fs(); | |
2068 | fs->rgw = rgw; | |
2069 | ||
2070 | /* XXX we no longer assume "/" is unique, but we aren't tracking the | |
2071 | * roots atm */ | |
2072 | ||
2073 | *rgw_fs = fs; | |
2074 | ||
2075 | return 0; | |
2076 | } | |
2077 | ||
2078 | int rgw_mount2(librgw_t rgw, const char *uid, const char *acc_key, | |
2079 | const char *sec_key, const char *root, struct rgw_fs **rgw_fs, | |
2080 | uint32_t flags) | |
2081 | { | |
2082 | int rc = 0; | |
2083 | ||
20effc67 TL |
2084 | /* if the config has no value for path/root, choose "/" */ |
2085 | RGWLibFS* new_fs{nullptr}; | |
2086 | if(root && | |
2087 | (!strcmp(root, ""))) { | |
2088 | /* stash access data for "mount" */ | |
2089 | new_fs = new RGWLibFS( | |
2090 | static_cast<CephContext*>(rgw), uid, acc_key, sec_key, "/"); | |
2091 | } | |
2092 | else { | |
2093 | /* stash access data for "mount" */ | |
2094 | new_fs = new RGWLibFS( | |
2095 | static_cast<CephContext*>(rgw), uid, acc_key, sec_key, root); | |
2096 | } | |
2097 | ||
2098 | ceph_assert(new_fs); /* should we be using ceph_assert? */ | |
7c673cae | 2099 | |
1e59de90 TL |
2100 | const DoutPrefix dp(g_rgwlib->get_driver()->ctx(), dout_subsys, "rgw mount2: "); |
2101 | rc = new_fs->authorize(&dp, g_rgwlib->get_driver()); | |
7c673cae FG |
2102 | if (rc != 0) { |
2103 | delete new_fs; | |
2104 | return -EINVAL; | |
2105 | } | |
2106 | ||
2107 | /* register fs for shared gc */ | |
1e59de90 | 2108 | g_rgwlib->get_fe()->get_process()->register_fs(new_fs); |
7c673cae FG |
2109 | |
2110 | struct rgw_fs *fs = new_fs->get_fs(); | |
2111 | fs->rgw = rgw; | |
2112 | ||
2113 | /* XXX we no longer assume "/" is unique, but we aren't tracking the | |
2114 | * roots atm */ | |
2115 | ||
2116 | *rgw_fs = fs; | |
2117 | ||
2118 | return 0; | |
2119 | } | |
2120 | ||
2121 | /* | |
2122 | register invalidate callbacks | |
2123 | */ | |
2124 | int rgw_register_invalidate(struct rgw_fs *rgw_fs, rgw_fh_callback_t cb, | |
2125 | void *arg, uint32_t flags) | |
2126 | ||
2127 | { | |
2128 | RGWLibFS *fs = static_cast<RGWLibFS*>(rgw_fs->fs_private); | |
2129 | return fs->register_invalidate(cb, arg, flags); | |
2130 | } | |
2131 | ||
2132 | /* | |
2133 | detach rgw namespace | |
2134 | */ | |
2135 | int rgw_umount(struct rgw_fs *rgw_fs, uint32_t flags) | |
2136 | { | |
2137 | RGWLibFS *fs = static_cast<RGWLibFS*>(rgw_fs->fs_private); | |
2138 | fs->close(); | |
7c673cae FG |
2139 | return 0; |
2140 | } | |
2141 | ||
2142 | /* | |
2143 | get filesystem attributes | |
2144 | */ | |
2145 | int rgw_statfs(struct rgw_fs *rgw_fs, | |
2146 | struct rgw_file_handle *parent_fh, | |
2147 | struct rgw_statvfs *vfs_st, uint32_t flags) | |
2148 | { | |
2149 | RGWLibFS *fs = static_cast<RGWLibFS*>(rgw_fs->fs_private); | |
28e407b8 AA |
2150 | struct rados_cluster_stat_t stats; |
2151 | ||
f67539c2 | 2152 | RGWGetClusterStatReq req(fs->get_context(), |
1e59de90 | 2153 | g_rgwlib->get_driver()->get_user(fs->get_user()->user_id), |
f67539c2 | 2154 | stats); |
1e59de90 | 2155 | int rc = g_rgwlib->get_fe()->execute_req(&req); |
28e407b8 AA |
2156 | if (rc < 0) { |
2157 | lderr(fs->get_context()) << "ERROR: getting total cluster usage" | |
2158 | << cpp_strerror(-rc) << dendl; | |
2159 | return rc; | |
2160 | } | |
7c673cae | 2161 | |
28e407b8 AA |
2162 | //Set block size to 1M. |
2163 | constexpr uint32_t CEPH_BLOCK_SHIFT = 20; | |
2164 | vfs_st->f_bsize = 1 << CEPH_BLOCK_SHIFT; | |
2165 | vfs_st->f_frsize = 1 << CEPH_BLOCK_SHIFT; | |
2166 | vfs_st->f_blocks = stats.kb >> (CEPH_BLOCK_SHIFT - 10); | |
2167 | vfs_st->f_bfree = stats.kb_avail >> (CEPH_BLOCK_SHIFT - 10); | |
2168 | vfs_st->f_bavail = stats.kb_avail >> (CEPH_BLOCK_SHIFT - 10); | |
2169 | vfs_st->f_files = stats.num_objects; | |
2170 | vfs_st->f_ffree = -1; | |
3efd9988 FG |
2171 | vfs_st->f_fsid[0] = fs->get_fsid(); |
2172 | vfs_st->f_fsid[1] = fs->get_fsid(); | |
7c673cae FG |
2173 | vfs_st->f_flag = 0; |
2174 | vfs_st->f_namemax = 4096; | |
2175 | return 0; | |
2176 | } | |
2177 | ||
2178 | /* | |
2179 | generic create -- create an empty regular file | |
2180 | */ | |
2181 | int rgw_create(struct rgw_fs *rgw_fs, struct rgw_file_handle *parent_fh, | |
2182 | const char *name, struct stat *st, uint32_t mask, | |
2183 | struct rgw_file_handle **fh, uint32_t posix_flags, | |
2184 | uint32_t flags) | |
2185 | { | |
2186 | using std::get; | |
2187 | ||
2188 | RGWLibFS *fs = static_cast<RGWLibFS*>(rgw_fs->fs_private); | |
2189 | RGWFileHandle* parent = get_rgwfh(parent_fh); | |
2190 | ||
2191 | if ((! parent) || | |
2192 | (parent->is_root()) || | |
2193 | (parent->is_file())) { | |
2194 | /* bad parent */ | |
2195 | return -EINVAL; | |
2196 | } | |
2197 | ||
2198 | MkObjResult fhr = fs->create(parent, name, st, mask, flags); | |
2199 | RGWFileHandle *nfh = get<0>(fhr); // nullptr if !success | |
2200 | ||
2201 | if (nfh) | |
2202 | *fh = nfh->get_fh(); | |
2203 | ||
2204 | return get<1>(fhr); | |
2205 | } /* rgw_create */ | |
2206 | ||
11fdf7f2 TL |
2207 | /* |
2208 | create a symbolic link | |
2209 | */ | |
2210 | int rgw_symlink(struct rgw_fs *rgw_fs, struct rgw_file_handle *parent_fh, | |
2211 | const char *name, const char *link_path, struct stat *st, uint32_t mask, | |
2212 | struct rgw_file_handle **fh, uint32_t posix_flags, | |
2213 | uint32_t flags) | |
2214 | { | |
2215 | using std::get; | |
2216 | ||
2217 | RGWLibFS *fs = static_cast<RGWLibFS*>(rgw_fs->fs_private); | |
2218 | RGWFileHandle* parent = get_rgwfh(parent_fh); | |
2219 | ||
2220 | if ((! parent) || | |
2221 | (parent->is_root()) || | |
2222 | (parent->is_file())) { | |
2223 | /* bad parent */ | |
2224 | return -EINVAL; | |
2225 | } | |
2226 | ||
2227 | MkObjResult fhr = fs->symlink(parent, name, link_path, st, mask, flags); | |
2228 | RGWFileHandle *nfh = get<0>(fhr); // nullptr if !success | |
2229 | ||
2230 | if (nfh) | |
2231 | *fh = nfh->get_fh(); | |
2232 | ||
2233 | return get<1>(fhr); | |
2234 | } /* rgw_symlink */ | |
2235 | ||
7c673cae FG |
2236 | /* |
2237 | create a new directory | |
2238 | */ | |
2239 | int rgw_mkdir(struct rgw_fs *rgw_fs, | |
2240 | struct rgw_file_handle *parent_fh, | |
2241 | const char *name, struct stat *st, uint32_t mask, | |
2242 | struct rgw_file_handle **fh, uint32_t flags) | |
2243 | { | |
2244 | using std::get; | |
2245 | ||
2246 | RGWLibFS *fs = static_cast<RGWLibFS*>(rgw_fs->fs_private); | |
2247 | RGWFileHandle* parent = get_rgwfh(parent_fh); | |
2248 | ||
2249 | if (! parent) { | |
2250 | /* bad parent */ | |
2251 | return -EINVAL; | |
2252 | } | |
2253 | ||
2254 | MkObjResult fhr = fs->mkdir(parent, name, st, mask, flags); | |
2255 | RGWFileHandle *nfh = get<0>(fhr); // nullptr if !success | |
2256 | ||
2257 | if (nfh) | |
2258 | *fh = nfh->get_fh(); | |
2259 | ||
2260 | return get<1>(fhr); | |
2261 | } /* rgw_mkdir */ | |
2262 | ||
2263 | /* | |
2264 | rename object | |
2265 | */ | |
2266 | int rgw_rename(struct rgw_fs *rgw_fs, | |
2267 | struct rgw_file_handle *src, const char* src_name, | |
2268 | struct rgw_file_handle *dst, const char* dst_name, | |
2269 | uint32_t flags) | |
2270 | { | |
2271 | RGWLibFS *fs = static_cast<RGWLibFS*>(rgw_fs->fs_private); | |
2272 | ||
2273 | RGWFileHandle* src_fh = get_rgwfh(src); | |
2274 | RGWFileHandle* dst_fh = get_rgwfh(dst); | |
2275 | ||
2276 | return fs->rename(src_fh, dst_fh, src_name, dst_name); | |
2277 | } | |
2278 | ||
2279 | /* | |
2280 | remove file or directory | |
2281 | */ | |
2282 | int rgw_unlink(struct rgw_fs *rgw_fs, struct rgw_file_handle *parent_fh, | |
2283 | const char *name, uint32_t flags) | |
2284 | { | |
2285 | RGWLibFS *fs = static_cast<RGWLibFS*>(rgw_fs->fs_private); | |
2286 | RGWFileHandle* parent = get_rgwfh(parent_fh); | |
2287 | ||
2288 | return fs->unlink(parent, name); | |
2289 | } | |
2290 | ||
2291 | /* | |
2292 | lookup object by name (POSIX style) | |
2293 | */ | |
2294 | int rgw_lookup(struct rgw_fs *rgw_fs, | |
2295 | struct rgw_file_handle *parent_fh, const char* path, | |
eafe8130 TL |
2296 | struct rgw_file_handle **fh, |
2297 | struct stat *st, uint32_t mask, uint32_t flags) | |
7c673cae FG |
2298 | { |
2299 | //CephContext* cct = static_cast<CephContext*>(rgw_fs->rgw); | |
2300 | RGWLibFS *fs = static_cast<RGWLibFS*>(rgw_fs->fs_private); | |
2301 | ||
2302 | RGWFileHandle* parent = get_rgwfh(parent_fh); | |
2303 | if ((! parent) || | |
2304 | (! parent->is_dir())) { | |
2305 | /* bad parent */ | |
2306 | return -EINVAL; | |
2307 | } | |
2308 | ||
2309 | RGWFileHandle* rgw_fh; | |
2310 | LookupFHResult fhr; | |
2311 | ||
2312 | if (parent->is_root()) { | |
2313 | /* special: parent lookup--note lack of ref()! */ | |
2314 | if (unlikely((strcmp(path, "..") == 0) || | |
2315 | (strcmp(path, "/") == 0))) { | |
2316 | rgw_fh = parent; | |
2317 | } else { | |
31f18b77 FG |
2318 | RGWLibFS::BucketStats bstat; |
2319 | fhr = fs->stat_bucket(parent, path, bstat, RGWFileHandle::FLAG_NONE); | |
7c673cae FG |
2320 | rgw_fh = get<0>(fhr); |
2321 | if (! rgw_fh) | |
2322 | return -ENOENT; | |
2323 | } | |
2324 | } else { | |
224ce89b WB |
2325 | /* special: after readdir--note extra ref()! */ |
2326 | if (unlikely((strcmp(path, "..") == 0))) { | |
2327 | rgw_fh = parent; | |
2328 | lsubdout(fs->get_context(), rgw, 17) | |
11fdf7f2 | 2329 | << __func__ << " BANG"<< *rgw_fh |
224ce89b WB |
2330 | << dendl; |
2331 | fs->ref(rgw_fh); | |
2332 | } else { | |
224ce89b WB |
2333 | enum rgw_fh_type fh_type = fh_type_of(flags); |
2334 | ||
2335 | uint32_t sl_flags = (flags & RGW_LOOKUP_FLAG_RCB) | |
f67539c2 | 2336 | ? RGWFileHandle::FLAG_IN_CB |
224ce89b WB |
2337 | : RGWFileHandle::FLAG_EXACT_MATCH; |
2338 | ||
eafe8130 TL |
2339 | bool fast_attrs= fs->get_context()->_conf->rgw_nfs_s3_fast_attrs; |
2340 | ||
2341 | if ((flags & RGW_LOOKUP_FLAG_RCB) && fast_attrs) { | |
2342 | /* FAKE STAT--this should mean, interpolate special | |
2343 | * owner, group, and perms masks */ | |
2344 | fhr = fs->fake_leaf(parent, path, fh_type, st, mask, sl_flags); | |
2345 | } else { | |
2346 | if ((fh_type == RGW_FS_TYPE_DIRECTORY) && fast_attrs) { | |
2347 | /* trust cached dir, if present */ | |
2348 | fhr = fs->lookup_fh(parent, path, RGWFileHandle::FLAG_DIRECTORY); | |
2349 | if (get<0>(fhr)) { | |
2350 | rgw_fh = get<0>(fhr); | |
2351 | goto done; | |
2352 | } | |
2353 | } | |
2354 | fhr = fs->stat_leaf(parent, path, fh_type, sl_flags); | |
2355 | } | |
224ce89b WB |
2356 | if (! get<0>(fhr)) { |
2357 | if (! (flags & RGW_LOOKUP_FLAG_CREATE)) | |
2358 | return -ENOENT; | |
2359 | else | |
2360 | fhr = fs->lookup_fh(parent, path, RGWFileHandle::FLAG_CREATE); | |
2361 | } | |
2362 | rgw_fh = get<0>(fhr); | |
7c673cae | 2363 | } |
7c673cae FG |
2364 | } /* !root */ |
2365 | ||
eafe8130 | 2366 | done: |
7c673cae FG |
2367 | struct rgw_file_handle *rfh = rgw_fh->get_fh(); |
2368 | *fh = rfh; | |
2369 | ||
2370 | return 0; | |
2371 | } /* rgw_lookup */ | |
2372 | ||
2373 | /* | |
2374 | lookup object by handle (NFS style) | |
2375 | */ | |
2376 | int rgw_lookup_handle(struct rgw_fs *rgw_fs, struct rgw_fh_hk *fh_hk, | |
2377 | struct rgw_file_handle **fh, uint32_t flags) | |
2378 | { | |
2379 | RGWLibFS *fs = static_cast<RGWLibFS*>(rgw_fs->fs_private); | |
2380 | ||
2381 | RGWFileHandle* rgw_fh = fs->lookup_handle(*fh_hk); | |
2382 | if (! rgw_fh) { | |
2383 | /* not found */ | |
2384 | return -ENOENT; | |
2385 | } | |
2386 | ||
2387 | struct rgw_file_handle *rfh = rgw_fh->get_fh(); | |
2388 | *fh = rfh; | |
2389 | ||
2390 | return 0; | |
2391 | } | |
2392 | ||
2393 | /* | |
2394 | * release file handle | |
2395 | */ | |
2396 | int rgw_fh_rele(struct rgw_fs *rgw_fs, struct rgw_file_handle *fh, | |
2397 | uint32_t flags) | |
2398 | { | |
2399 | RGWLibFS *fs = static_cast<RGWLibFS*>(rgw_fs->fs_private); | |
2400 | RGWFileHandle* rgw_fh = get_rgwfh(fh); | |
2401 | ||
2402 | lsubdout(fs->get_context(), rgw, 17) | |
2403 | << __func__ << " " << *rgw_fh | |
2404 | << dendl; | |
2405 | ||
2406 | fs->unref(rgw_fh); | |
2407 | return 0; | |
2408 | } | |
2409 | ||
2410 | /* | |
2411 | get unix attributes for object | |
2412 | */ | |
2413 | int rgw_getattr(struct rgw_fs *rgw_fs, | |
2414 | struct rgw_file_handle *fh, struct stat *st, uint32_t flags) | |
2415 | { | |
2416 | RGWLibFS *fs = static_cast<RGWLibFS*>(rgw_fs->fs_private); | |
2417 | RGWFileHandle* rgw_fh = get_rgwfh(fh); | |
2418 | ||
2419 | return fs->getattr(rgw_fh, st); | |
2420 | } | |
2421 | ||
2422 | /* | |
2423 | set unix attributes for object | |
2424 | */ | |
2425 | int rgw_setattr(struct rgw_fs *rgw_fs, | |
2426 | struct rgw_file_handle *fh, struct stat *st, | |
2427 | uint32_t mask, uint32_t flags) | |
2428 | { | |
2429 | RGWLibFS *fs = static_cast<RGWLibFS*>(rgw_fs->fs_private); | |
2430 | RGWFileHandle* rgw_fh = get_rgwfh(fh); | |
2431 | ||
2432 | return fs->setattr(rgw_fh, st, mask, flags); | |
2433 | } | |
2434 | ||
2435 | /* | |
2436 | truncate file | |
2437 | */ | |
2438 | int rgw_truncate(struct rgw_fs *rgw_fs, | |
2439 | struct rgw_file_handle *fh, uint64_t size, uint32_t flags) | |
2440 | { | |
2441 | return 0; | |
2442 | } | |
2443 | ||
2444 | /* | |
2445 | open file | |
2446 | */ | |
2447 | int rgw_open(struct rgw_fs *rgw_fs, | |
2448 | struct rgw_file_handle *fh, uint32_t posix_flags, uint32_t flags) | |
2449 | { | |
2450 | RGWFileHandle* rgw_fh = get_rgwfh(fh); | |
2451 | ||
28e407b8 | 2452 | /* XXX |
7c673cae FG |
2453 | * need to track specific opens--at least read opens and |
2454 | * a write open; we need to know when a write open is returned, | |
2455 | * that closes a write transaction | |
2456 | * | |
2457 | * for now, we will support single-open only, it's preferable to | |
2458 | * anything we can otherwise do without access to the NFS state | |
2459 | */ | |
2460 | if (! rgw_fh->is_file()) | |
2461 | return -EISDIR; | |
2462 | ||
2463 | return rgw_fh->open(flags); | |
2464 | } | |
2465 | ||
2466 | /* | |
2467 | close file | |
2468 | */ | |
2469 | int rgw_close(struct rgw_fs *rgw_fs, | |
2470 | struct rgw_file_handle *fh, uint32_t flags) | |
2471 | { | |
2472 | RGWLibFS *fs = static_cast<RGWLibFS*>(rgw_fs->fs_private); | |
2473 | RGWFileHandle* rgw_fh = get_rgwfh(fh); | |
2474 | int rc = rgw_fh->close(/* XXX */); | |
2475 | ||
2476 | if (flags & RGW_CLOSE_FLAG_RELE) | |
2477 | fs->unref(rgw_fh); | |
2478 | ||
2479 | return rc; | |
2480 | } | |
2481 | ||
2482 | int rgw_readdir(struct rgw_fs *rgw_fs, | |
2483 | struct rgw_file_handle *parent_fh, uint64_t *offset, | |
2484 | rgw_readdir_cb rcb, void *cb_arg, bool *eof, | |
2485 | uint32_t flags) | |
2486 | { | |
2487 | RGWFileHandle* parent = get_rgwfh(parent_fh); | |
2488 | if (! parent) { | |
2489 | /* bad parent */ | |
2490 | return -EINVAL; | |
2491 | } | |
3efd9988 FG |
2492 | |
2493 | lsubdout(parent->get_fs()->get_context(), rgw, 15) | |
2494 | << __func__ | |
2495 | << " offset=" << *offset | |
2496 | << dendl; | |
2497 | ||
2498 | if ((*offset == 0) && | |
2499 | (flags & RGW_READDIR_FLAG_DOTDOT)) { | |
2500 | /* send '.' and '..' with their NFS-defined offsets */ | |
eafe8130 TL |
2501 | rcb(".", cb_arg, 1, nullptr, 0, RGW_LOOKUP_FLAG_DIR); |
2502 | rcb("..", cb_arg, 2, nullptr, 0, RGW_LOOKUP_FLAG_DIR); | |
3efd9988 FG |
2503 | } |
2504 | ||
7c673cae FG |
2505 | int rc = parent->readdir(rcb, cb_arg, offset, eof, flags); |
2506 | return rc; | |
3efd9988 FG |
2507 | } /* rgw_readdir */ |
2508 | ||
2509 | /* enumeration continuing from name */ | |
2510 | int rgw_readdir2(struct rgw_fs *rgw_fs, | |
2511 | struct rgw_file_handle *parent_fh, const char *name, | |
2512 | rgw_readdir_cb rcb, void *cb_arg, bool *eof, | |
2513 | uint32_t flags) | |
2514 | { | |
2515 | RGWFileHandle* parent = get_rgwfh(parent_fh); | |
2516 | if (! parent) { | |
2517 | /* bad parent */ | |
2518 | return -EINVAL; | |
2519 | } | |
2520 | ||
2521 | lsubdout(parent->get_fs()->get_context(), rgw, 15) | |
2522 | << __func__ | |
94b18763 | 2523 | << " offset=" << ((name) ? name : "(nil)") |
3efd9988 FG |
2524 | << dendl; |
2525 | ||
2526 | if ((! name) && | |
2527 | (flags & RGW_READDIR_FLAG_DOTDOT)) { | |
2528 | /* send '.' and '..' with their NFS-defined offsets */ | |
eafe8130 TL |
2529 | rcb(".", cb_arg, 1, nullptr, 0, RGW_LOOKUP_FLAG_DIR); |
2530 | rcb("..", cb_arg, 2, nullptr, 0, RGW_LOOKUP_FLAG_DIR); | |
3efd9988 FG |
2531 | } |
2532 | ||
2533 | int rc = parent->readdir(rcb, cb_arg, name, eof, flags); | |
2534 | return rc; | |
2535 | } /* rgw_readdir2 */ | |
7c673cae | 2536 | |
c07f9fc5 FG |
2537 | /* project offset of dirent name */ |
2538 | int rgw_dirent_offset(struct rgw_fs *rgw_fs, | |
2539 | struct rgw_file_handle *parent_fh, | |
2540 | const char *name, int64_t *offset, | |
2541 | uint32_t flags) | |
2542 | { | |
2543 | RGWFileHandle* parent = get_rgwfh(parent_fh); | |
2544 | if ((! parent)) { | |
2545 | /* bad parent */ | |
2546 | return -EINVAL; | |
2547 | } | |
2548 | std::string sname{name}; | |
2549 | int rc = parent->offset_of(sname, offset, flags); | |
2550 | return rc; | |
2551 | } | |
2552 | ||
7c673cae FG |
2553 | /* |
2554 | read data from file | |
2555 | */ | |
2556 | int rgw_read(struct rgw_fs *rgw_fs, | |
2557 | struct rgw_file_handle *fh, uint64_t offset, | |
2558 | size_t length, size_t *bytes_read, void *buffer, | |
2559 | uint32_t flags) | |
2560 | { | |
2561 | RGWLibFS *fs = static_cast<RGWLibFS*>(rgw_fs->fs_private); | |
2562 | RGWFileHandle* rgw_fh = get_rgwfh(fh); | |
2563 | ||
2564 | return fs->read(rgw_fh, offset, length, bytes_read, buffer, flags); | |
2565 | } | |
2566 | ||
11fdf7f2 TL |
2567 | /* |
2568 | read symbolic link | |
2569 | */ | |
2570 | int rgw_readlink(struct rgw_fs *rgw_fs, | |
2571 | struct rgw_file_handle *fh, uint64_t offset, | |
2572 | size_t length, size_t *bytes_read, void *buffer, | |
2573 | uint32_t flags) | |
2574 | { | |
2575 | RGWLibFS *fs = static_cast<RGWLibFS*>(rgw_fs->fs_private); | |
2576 | RGWFileHandle* rgw_fh = get_rgwfh(fh); | |
2577 | ||
2578 | return fs->readlink(rgw_fh, offset, length, bytes_read, buffer, flags); | |
2579 | } | |
2580 | ||
7c673cae FG |
2581 | /* |
2582 | write data to file | |
2583 | */ | |
2584 | int rgw_write(struct rgw_fs *rgw_fs, | |
2585 | struct rgw_file_handle *fh, uint64_t offset, | |
2586 | size_t length, size_t *bytes_written, void *buffer, | |
2587 | uint32_t flags) | |
2588 | { | |
2589 | RGWFileHandle* rgw_fh = get_rgwfh(fh); | |
2590 | int rc; | |
2591 | ||
2592 | *bytes_written = 0; | |
2593 | ||
2594 | if (! rgw_fh->is_file()) | |
2595 | return -EISDIR; | |
2596 | ||
3efd9988 FG |
2597 | if (! rgw_fh->is_open()) { |
2598 | if (flags & RGW_OPEN_FLAG_V3) { | |
2599 | rc = rgw_fh->open(flags); | |
2600 | if (!! rc) | |
2601 | return rc; | |
2602 | } else | |
2603 | return -EPERM; | |
2604 | } | |
7c673cae FG |
2605 | |
2606 | rc = rgw_fh->write(offset, length, bytes_written, buffer); | |
2607 | ||
2608 | return rc; | |
2609 | } | |
2610 | ||
2611 | /* | |
2612 | read data from file (vector) | |
2613 | */ | |
2614 | class RGWReadV | |
2615 | { | |
2616 | buffer::list bl; | |
2617 | struct rgw_vio* vio; | |
2618 | ||
2619 | public: | |
2620 | RGWReadV(buffer::list& _bl, rgw_vio* _vio) : vio(_vio) { | |
f67539c2 | 2621 | bl = std::move(_bl); |
7c673cae FG |
2622 | } |
2623 | ||
2624 | struct rgw_vio* get_vio() { return vio; } | |
2625 | ||
11fdf7f2 | 2626 | const auto& buffers() { return bl.buffers(); } |
7c673cae FG |
2627 | |
2628 | unsigned /* XXX */ length() { return bl.length(); } | |
2629 | ||
2630 | }; | |
2631 | ||
2632 | void rgw_readv_rele(struct rgw_uio *uio, uint32_t flags) | |
2633 | { | |
2634 | RGWReadV* rdv = static_cast<RGWReadV*>(uio->uio_p1); | |
2635 | rdv->~RGWReadV(); | |
2636 | ::operator delete(rdv); | |
2637 | } | |
2638 | ||
2639 | int rgw_readv(struct rgw_fs *rgw_fs, | |
2640 | struct rgw_file_handle *fh, rgw_uio *uio, uint32_t flags) | |
2641 | { | |
2642 | #if 0 /* XXX */ | |
2643 | CephContext* cct = static_cast<CephContext*>(rgw_fs->rgw); | |
2644 | RGWLibFS *fs = static_cast<RGWLibFS*>(rgw_fs->fs_private); | |
2645 | RGWFileHandle* rgw_fh = get_rgwfh(fh); | |
2646 | ||
2647 | if (! rgw_fh->is_file()) | |
2648 | return -EINVAL; | |
2649 | ||
2650 | int rc = 0; | |
2651 | ||
2652 | buffer::list bl; | |
2653 | RGWGetObjRequest req(cct, fs->get_user(), rgw_fh->bucket_name(), | |
2654 | rgw_fh->object_name(), uio->uio_offset, uio->uio_resid, | |
2655 | bl); | |
2656 | req.do_hexdump = false; | |
2657 | ||
1e59de90 | 2658 | rc = g_rgwlib->get_fe()->execute_req(&req); |
7c673cae FG |
2659 | |
2660 | if (! rc) { | |
2661 | RGWReadV* rdv = static_cast<RGWReadV*>( | |
2662 | ::operator new(sizeof(RGWReadV) + | |
2663 | (bl.buffers().size() * sizeof(struct rgw_vio)))); | |
2664 | ||
2665 | (void) new (rdv) | |
2666 | RGWReadV(bl, reinterpret_cast<rgw_vio*>(rdv+sizeof(RGWReadV))); | |
2667 | ||
2668 | uio->uio_p1 = rdv; | |
2669 | uio->uio_cnt = rdv->buffers().size(); | |
2670 | uio->uio_resid = rdv->length(); | |
2671 | uio->uio_vio = rdv->get_vio(); | |
2672 | uio->uio_rele = rgw_readv_rele; | |
2673 | ||
2674 | int ix = 0; | |
2675 | auto& buffers = rdv->buffers(); | |
2676 | for (auto& bp : buffers) { | |
2677 | rgw_vio *vio = &(uio->uio_vio[ix]); | |
2678 | vio->vio_base = const_cast<char*>(bp.c_str()); | |
2679 | vio->vio_len = bp.length(); | |
2680 | vio->vio_u1 = nullptr; | |
2681 | vio->vio_p1 = nullptr; | |
2682 | ++ix; | |
2683 | } | |
2684 | } | |
2685 | ||
2686 | return rc; | |
2687 | #else | |
2688 | return 0; | |
2689 | #endif | |
2690 | } | |
2691 | ||
2692 | /* | |
2693 | write data to file (vector) | |
2694 | */ | |
2695 | int rgw_writev(struct rgw_fs *rgw_fs, struct rgw_file_handle *fh, | |
2696 | rgw_uio *uio, uint32_t flags) | |
2697 | { | |
2698 | ||
f67539c2 | 2699 | // not supported - rest of function is ignored |
7c673cae FG |
2700 | return -ENOTSUP; |
2701 | ||
2702 | CephContext* cct = static_cast<CephContext*>(rgw_fs->rgw); | |
2703 | RGWLibFS *fs = static_cast<RGWLibFS*>(rgw_fs->fs_private); | |
2704 | RGWFileHandle* rgw_fh = get_rgwfh(fh); | |
2705 | ||
2706 | if (! rgw_fh->is_file()) | |
2707 | return -EINVAL; | |
2708 | ||
2709 | buffer::list bl; | |
2710 | for (unsigned int ix = 0; ix < uio->uio_cnt; ++ix) { | |
2711 | rgw_vio *vio = &(uio->uio_vio[ix]); | |
2712 | bl.push_back( | |
2713 | buffer::create_static(vio->vio_len, | |
2714 | static_cast<char*>(vio->vio_base))); | |
2715 | } | |
2716 | ||
2717 | std::string oname = rgw_fh->relative_object_name(); | |
1e59de90 | 2718 | RGWPutObjRequest req(cct, g_rgwlib->get_driver()->get_user(fs->get_user()->user_id), |
f67539c2 | 2719 | rgw_fh->bucket_name(), oname, bl); |
7c673cae | 2720 | |
1e59de90 | 2721 | int rc = g_rgwlib->get_fe()->execute_req(&req); |
7c673cae FG |
2722 | |
2723 | /* XXX update size (in request) */ | |
2724 | ||
2725 | return rc; | |
2726 | } | |
2727 | ||
2728 | /* | |
2729 | sync written data | |
2730 | */ | |
2731 | int rgw_fsync(struct rgw_fs *rgw_fs, struct rgw_file_handle *handle, | |
2732 | uint32_t flags) | |
2733 | { | |
2734 | return 0; | |
2735 | } | |
2736 | ||
2737 | int rgw_commit(struct rgw_fs *rgw_fs, struct rgw_file_handle *fh, | |
2738 | uint64_t offset, uint64_t length, uint32_t flags) | |
2739 | { | |
2740 | RGWFileHandle* rgw_fh = get_rgwfh(fh); | |
2741 | ||
2742 | return rgw_fh->commit(offset, length, RGWFileHandle::FLAG_NONE); | |
2743 | } | |
2744 | ||
f67539c2 TL |
2745 | /* |
2746 | extended attributes | |
2747 | */ | |
2748 | ||
2749 | int rgw_getxattrs(struct rgw_fs *rgw_fs, struct rgw_file_handle *fh, | |
2750 | rgw_xattrlist *attrs, rgw_getxattr_cb cb, void *cb_arg, | |
2751 | uint32_t flags) | |
2752 | { | |
2753 | RGWLibFS *fs = static_cast<RGWLibFS*>(rgw_fs->fs_private); | |
2754 | RGWFileHandle* rgw_fh = get_rgwfh(fh); | |
2755 | ||
2756 | return fs->getxattrs(rgw_fh, attrs, cb, cb_arg, flags); | |
2757 | } | |
2758 | ||
2759 | int rgw_lsxattrs(struct rgw_fs *rgw_fs, struct rgw_file_handle *fh, | |
2760 | rgw_xattrstr *filter_prefix /* ignored */, | |
2761 | rgw_getxattr_cb cb, void *cb_arg, uint32_t flags) | |
2762 | { | |
2763 | RGWLibFS *fs = static_cast<RGWLibFS*>(rgw_fs->fs_private); | |
2764 | RGWFileHandle* rgw_fh = get_rgwfh(fh); | |
2765 | ||
2766 | return fs->lsxattrs(rgw_fh, filter_prefix, cb, cb_arg, flags); | |
2767 | } | |
2768 | ||
2769 | int rgw_setxattrs(struct rgw_fs *rgw_fs, struct rgw_file_handle *fh, | |
2770 | rgw_xattrlist *attrs, uint32_t flags) | |
2771 | { | |
2772 | RGWLibFS *fs = static_cast<RGWLibFS*>(rgw_fs->fs_private); | |
2773 | RGWFileHandle* rgw_fh = get_rgwfh(fh); | |
2774 | ||
2775 | return fs->setxattrs(rgw_fh, attrs, flags); | |
2776 | } | |
2777 | ||
2778 | int rgw_rmxattrs(struct rgw_fs *rgw_fs, struct rgw_file_handle *fh, | |
2779 | rgw_xattrlist *attrs, uint32_t flags) | |
2780 | { | |
2781 | RGWLibFS *fs = static_cast<RGWLibFS*>(rgw_fs->fs_private); | |
2782 | RGWFileHandle* rgw_fh = get_rgwfh(fh); | |
2783 | ||
2784 | return fs->rmxattrs(rgw_fh, attrs, flags); | |
2785 | } | |
2786 | ||
7c673cae | 2787 | } /* extern "C" */ |