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