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s4:torture: FinderInfo conversion test with AppleDouble without xattr data
[Samba.git] / source3 / modules / vfs_default.c
blob082b70f5a98eeccbd3d69aca0f23bb3fa8c8175a
1 /*
2 Unix SMB/CIFS implementation.
3 Wrap disk only vfs functions to sidestep dodgy compilers.
4 Copyright (C) Tim Potter 1998
5 Copyright (C) Jeremy Allison 2007
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
19 */
20
21 #include "includes.h"
22 #include "system/time.h"
23 #include "system/filesys.h"
24 #include "smbd/smbd.h"
25 #include "smbd/globals.h"
26 #include "ntioctl.h"
27 #include "smbprofile.h"
28 #include "../libcli/security/security.h"
29 #include "passdb/lookup_sid.h"
30 #include "source3/include/msdfs.h"
31 #include "librpc/gen_ndr/ndr_dfsblobs.h"
32 #include "lib/util/tevent_unix.h"
33 #include "lib/util/tevent_ntstatus.h"
34 #include "lib/util/sys_rw.h"
35 #include "lib/pthreadpool/pthreadpool_tevent.h"
36 #include "librpc/gen_ndr/ndr_ioctl.h"
37 #include "offload_token.h"
38
39 #undef DBGC_CLASS
40 #define DBGC_CLASS DBGC_VFS
41
42 /* Check for NULL pointer parameters in vfswrap_* functions */
43
44 /* We don't want to have NULL function pointers lying around. Someone
45 is sure to try and execute them. These stubs are used to prevent
46 this possibility. */
47
48 static int vfswrap_connect(vfs_handle_struct *handle, const char *service, const char *user)
49 {
50 return 0; /* Return >= 0 for success */
51 }
52
53 static void vfswrap_disconnect(vfs_handle_struct *handle)
54 {
55 }
56
57 /* Disk operations */
58
59 static uint64_t vfswrap_disk_free(vfs_handle_struct *handle,
60 const struct smb_filename *smb_fname,
61 uint64_t *bsize,
62 uint64_t *dfree,
63 uint64_t *dsize)
64 {
65 if (sys_fsusage(smb_fname->base_name, dfree, dsize) != 0) {
66 return (uint64_t)-1;
67 }
68
69 *bsize = 512;
70 return *dfree / 2;
71 }
72
73 static int vfswrap_get_quota(struct vfs_handle_struct *handle,
74 const struct smb_filename *smb_fname,
75 enum SMB_QUOTA_TYPE qtype,
76 unid_t id,
77 SMB_DISK_QUOTA *qt)
78 {
79 #ifdef HAVE_SYS_QUOTAS
80 int result;
81
82 START_PROFILE(syscall_get_quota);
83 result = sys_get_quota(smb_fname->base_name, qtype, id, qt);
84 END_PROFILE(syscall_get_quota);
85 return result;
86 #else
87 errno = ENOSYS;
88 return -1;
89 #endif
90 }
91
92 static int vfswrap_set_quota(struct vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt)
93 {
94 #ifdef HAVE_SYS_QUOTAS
95 int result;
96
97 START_PROFILE(syscall_set_quota);
98 result = sys_set_quota(handle->conn->connectpath, qtype, id, qt);
99 END_PROFILE(syscall_set_quota);
100 return result;
101 #else
102 errno = ENOSYS;
103 return -1;
104 #endif
105 }
106
107 static int vfswrap_get_shadow_copy_data(struct vfs_handle_struct *handle,
108 struct files_struct *fsp,
109 struct shadow_copy_data *shadow_copy_data,
110 bool labels)
111 {
112 errno = ENOSYS;
113 return -1; /* Not implemented. */
114 }
115
116 static int vfswrap_statvfs(struct vfs_handle_struct *handle,
117 const struct smb_filename *smb_fname,
118 vfs_statvfs_struct *statbuf)
119 {
120 return sys_statvfs(smb_fname->base_name, statbuf);
121 }
122
123 static uint32_t vfswrap_fs_capabilities(struct vfs_handle_struct *handle,
124 enum timestamp_set_resolution *p_ts_res)
125 {
126 connection_struct *conn = handle->conn;
127 uint32_t caps = FILE_CASE_SENSITIVE_SEARCH | FILE_CASE_PRESERVED_NAMES;
128 struct smb_filename *smb_fname_cpath = NULL;
129 struct vfs_statvfs_struct statbuf;
130 int ret;
131
132 smb_fname_cpath = synthetic_smb_fname(talloc_tos(), conn->connectpath,
133 NULL, NULL, 0);
134 if (smb_fname_cpath == NULL) {
135 return caps;
136 }
137
138 ZERO_STRUCT(statbuf);
139 ret = SMB_VFS_STATVFS(conn, smb_fname_cpath, &statbuf);
140 if (ret == 0) {
141 caps = statbuf.FsCapabilities;
142 }
143
144 *p_ts_res = TIMESTAMP_SET_SECONDS;
145
146 /* Work out what timestamp resolution we can
147 * use when setting a timestamp. */
148
149 ret = SMB_VFS_STAT(conn, smb_fname_cpath);
150 if (ret == -1) {
151 TALLOC_FREE(smb_fname_cpath);
152 return caps;
153 }
154
155 if (smb_fname_cpath->st.st_ex_mtime.tv_nsec ||
156 smb_fname_cpath->st.st_ex_atime.tv_nsec ||
157 smb_fname_cpath->st.st_ex_ctime.tv_nsec) {
158 /* If any of the normal UNIX directory timestamps
159 * have a non-zero tv_nsec component assume
160 * we might be able to set sub-second timestamps.
161 * See what filetime set primitives we have.
162 */
163 #if defined(HAVE_UTIMENSAT)
164 *p_ts_res = TIMESTAMP_SET_NT_OR_BETTER;
165 #elif defined(HAVE_UTIMES)
166 /* utimes allows msec timestamps to be set. */
167 *p_ts_res = TIMESTAMP_SET_MSEC;
168 #elif defined(HAVE_UTIME)
169 /* utime only allows sec timestamps to be set. */
170 *p_ts_res = TIMESTAMP_SET_SECONDS;
171 #endif
172
173 DEBUG(10,("vfswrap_fs_capabilities: timestamp "
174 "resolution of %s "
175 "available on share %s, directory %s\n",
176 *p_ts_res == TIMESTAMP_SET_MSEC ? "msec" : "sec",
177 lp_servicename(talloc_tos(), conn->params->service),
178 conn->connectpath ));
179 }
180 TALLOC_FREE(smb_fname_cpath);
181 return caps;
182 }
183
184 static NTSTATUS vfswrap_get_dfs_referrals(struct vfs_handle_struct *handle,
185 struct dfs_GetDFSReferral *r)
186 {
187 struct junction_map *junction = NULL;
188 int consumedcnt = 0;
189 bool self_referral = false;
190 char *pathnamep = NULL;
191 char *local_dfs_path = NULL;
192 NTSTATUS status;
193 int i;
194 uint16_t max_referral_level = r->in.req.max_referral_level;
195
196 if (DEBUGLVL(10)) {
197 NDR_PRINT_IN_DEBUG(dfs_GetDFSReferral, r);
198 }
199
200 /* get the junction entry */
201 if (r->in.req.servername == NULL) {
202 return NT_STATUS_NOT_FOUND;
203 }
204
205 /*
206 * Trim pathname sent by client so it begins with only one backslash.
207 * Two backslashes confuse some dfs clients
208 */
209
210 local_dfs_path = talloc_strdup(r, r->in.req.servername);
211 if (local_dfs_path == NULL) {
212 return NT_STATUS_NO_MEMORY;
213 }
214 pathnamep = local_dfs_path;
215 while (IS_DIRECTORY_SEP(pathnamep[0]) &&
216 IS_DIRECTORY_SEP(pathnamep[1])) {
217 pathnamep++;
218 }
219
220 junction = talloc_zero(r, struct junction_map);
221 if (junction == NULL) {
222 return NT_STATUS_NO_MEMORY;
223 }
224
225 /* The following call can change cwd. */
226 status = get_referred_path(r, pathnamep,
227 handle->conn->sconn->remote_address,
228 handle->conn->sconn->local_address,
229 !handle->conn->sconn->using_smb2,
230 junction, &consumedcnt, &self_referral);
231 if (!NT_STATUS_IS_OK(status)) {
232 struct smb_filename connectpath_fname = {
233 .base_name = handle->conn->connectpath
234 };
235 vfs_ChDir(handle->conn, &connectpath_fname);
236 return status;
237 }
238 {
239 struct smb_filename connectpath_fname = {
240 .base_name = handle->conn->connectpath
241 };
242 vfs_ChDir(handle->conn, &connectpath_fname);
243 }
244
245 if (!self_referral) {
246 pathnamep[consumedcnt] = '\0';
247
248 if (DEBUGLVL(3)) {
249 dbgtext("Path %s to alternate path(s):",
250 pathnamep);
251 for (i=0; i < junction->referral_count; i++) {
252 dbgtext(" %s",
253 junction->referral_list[i].alternate_path);
254 }
255 dbgtext(".\n");
256 }
257 }
258
259 if (r->in.req.max_referral_level <= 2) {
260 max_referral_level = 2;
261 }
262 if (r->in.req.max_referral_level >= 3) {
263 max_referral_level = 3;
264 }
265
266 r->out.resp = talloc_zero(r, struct dfs_referral_resp);
267 if (r->out.resp == NULL) {
268 return NT_STATUS_NO_MEMORY;
269 }
270
271 r->out.resp->path_consumed = strlen_m(pathnamep) * 2;
272 r->out.resp->nb_referrals = junction->referral_count;
273
274 r->out.resp->header_flags = DFS_HEADER_FLAG_STORAGE_SVR;
275 if (self_referral) {
276 r->out.resp->header_flags |= DFS_HEADER_FLAG_REFERAL_SVR;
277 }
278
279 r->out.resp->referral_entries = talloc_zero_array(r,
280 struct dfs_referral_type,
281 r->out.resp->nb_referrals);
282 if (r->out.resp->referral_entries == NULL) {
283 return NT_STATUS_NO_MEMORY;
284 }
285
286 switch (max_referral_level) {
287 case 2:
288 for(i=0; i < junction->referral_count; i++) {
289 struct referral *ref = &junction->referral_list[i];
290 TALLOC_CTX *mem_ctx = r->out.resp->referral_entries;
291 struct dfs_referral_type *t =
292 &r->out.resp->referral_entries[i];
293 struct dfs_referral_v2 *v2 = &t->referral.v2;
294
295 t->version = 2;
296 v2->size = VERSION2_REFERRAL_SIZE;
297 if (self_referral) {
298 v2->server_type = DFS_SERVER_ROOT;
299 } else {
300 v2->server_type = DFS_SERVER_NON_ROOT;
301 }
302 v2->entry_flags = 0;
303 v2->proximity = ref->proximity;
304 v2->ttl = ref->ttl;
305 v2->DFS_path = talloc_strdup(mem_ctx, pathnamep);
306 if (v2->DFS_path == NULL) {
307 return NT_STATUS_NO_MEMORY;
308 }
309 v2->DFS_alt_path = talloc_strdup(mem_ctx, pathnamep);
310 if (v2->DFS_alt_path == NULL) {
311 return NT_STATUS_NO_MEMORY;
312 }
313 v2->netw_address = talloc_strdup(mem_ctx,
314 ref->alternate_path);
315 if (v2->netw_address == NULL) {
316 return NT_STATUS_NO_MEMORY;
317 }
318 }
319
320 break;
321 case 3:
322 for(i=0; i < junction->referral_count; i++) {
323 struct referral *ref = &junction->referral_list[i];
324 TALLOC_CTX *mem_ctx = r->out.resp->referral_entries;
325 struct dfs_referral_type *t =
326 &r->out.resp->referral_entries[i];
327 struct dfs_referral_v3 *v3 = &t->referral.v3;
328 struct dfs_normal_referral *r1 = &v3->referrals.r1;
329
330 t->version = 3;
331 v3->size = VERSION3_REFERRAL_SIZE;
332 if (self_referral) {
333 v3->server_type = DFS_SERVER_ROOT;
334 } else {
335 v3->server_type = DFS_SERVER_NON_ROOT;
336 }
337 v3->entry_flags = 0;
338 v3->ttl = ref->ttl;
339 r1->DFS_path = talloc_strdup(mem_ctx, pathnamep);
340 if (r1->DFS_path == NULL) {
341 return NT_STATUS_NO_MEMORY;
342 }
343 r1->DFS_alt_path = talloc_strdup(mem_ctx, pathnamep);
344 if (r1->DFS_alt_path == NULL) {
345 return NT_STATUS_NO_MEMORY;
346 }
347 r1->netw_address = talloc_strdup(mem_ctx,
348 ref->alternate_path);
349 if (r1->netw_address == NULL) {
350 return NT_STATUS_NO_MEMORY;
351 }
352 }
353 break;
354 default:
355 DEBUG(0,("Invalid dfs referral version: %d\n",
356 max_referral_level));
357 return NT_STATUS_INVALID_LEVEL;
358 }
359
360 if (DEBUGLVL(10)) {
361 NDR_PRINT_OUT_DEBUG(dfs_GetDFSReferral, r);
362 }
363
364 return NT_STATUS_OK;
365 }
366
367 static NTSTATUS vfswrap_snap_check_path(struct vfs_handle_struct *handle,
368 TALLOC_CTX *mem_ctx,
369 const char *service_path,
370 char **base_volume)
371 {
372 return NT_STATUS_NOT_SUPPORTED;
373 }
374
375 static NTSTATUS vfswrap_snap_create(struct vfs_handle_struct *handle,
376 TALLOC_CTX *mem_ctx,
377 const char *base_volume,
378 time_t *tstamp,
379 bool rw,
380 char **base_path,
381 char **snap_path)
382 {
383 return NT_STATUS_NOT_SUPPORTED;
384 }
385
386 static NTSTATUS vfswrap_snap_delete(struct vfs_handle_struct *handle,
387 TALLOC_CTX *mem_ctx,
388 char *base_path,
389 char *snap_path)
390 {
391 return NT_STATUS_NOT_SUPPORTED;
392 }
393
394 /* Directory operations */
395
396 static DIR *vfswrap_opendir(vfs_handle_struct *handle,
397 const struct smb_filename *smb_fname,
398 const char *mask,
399 uint32_t attr)
400 {
401 DIR *result;
402
403 START_PROFILE(syscall_opendir);
404 result = opendir(smb_fname->base_name);
405 END_PROFILE(syscall_opendir);
406 return result;
407 }
408
409 static DIR *vfswrap_fdopendir(vfs_handle_struct *handle,
410 files_struct *fsp,
411 const char *mask,
412 uint32_t attr)
413 {
414 DIR *result;
415
416 START_PROFILE(syscall_fdopendir);
417 result = sys_fdopendir(fsp->fh->fd);
418 END_PROFILE(syscall_fdopendir);
419 return result;
420 }
421
422
423 static struct dirent *vfswrap_readdir(vfs_handle_struct *handle,
424 DIR *dirp,
425 SMB_STRUCT_STAT *sbuf)
426 {
427 struct dirent *result;
428
429 START_PROFILE(syscall_readdir);
430 result = readdir(dirp);
431 END_PROFILE(syscall_readdir);
432 if (sbuf) {
433 /* Default Posix readdir() does not give us stat info.
434 * Set to invalid to indicate we didn't return this info. */
435 SET_STAT_INVALID(*sbuf);
436 #if defined(HAVE_DIRFD) && defined(HAVE_FSTATAT)
437 if (result != NULL) {
438 /* See if we can efficiently return this. */
439 struct stat st;
440 int flags = AT_SYMLINK_NOFOLLOW;
441 int ret = fstatat(dirfd(dirp),
442 result->d_name,
443 &st,
444 flags);
445 /*
446 * As this is an optimization,
447 * ignore it if we stat'ed a
448 * symlink. Make the caller
449 * do it again as we don't
450 * know if they wanted the link
451 * info, or its target info.
452 */
453 if ((ret == 0) && (!S_ISLNK(st.st_mode))) {
454 init_stat_ex_from_stat(sbuf,
455 &st,
456 lp_fake_directory_create_times(
457 SNUM(handle->conn)));
458 }
459 }
460 #endif
461 }
462 return result;
463 }
464
465 static NTSTATUS vfswrap_readdir_attr(struct vfs_handle_struct *handle,
466 const struct smb_filename *fname,
467 TALLOC_CTX *mem_ctx,
468 struct readdir_attr_data **attr_data)
469 {
470 return NT_STATUS_NOT_SUPPORTED;
471 }
472
473 static void vfswrap_seekdir(vfs_handle_struct *handle, DIR *dirp, long offset)
474 {
475 START_PROFILE(syscall_seekdir);
476 seekdir(dirp, offset);
477 END_PROFILE(syscall_seekdir);
478 }
479
480 static long vfswrap_telldir(vfs_handle_struct *handle, DIR *dirp)
481 {
482 long result;
483 START_PROFILE(syscall_telldir);
484 result = telldir(dirp);
485 END_PROFILE(syscall_telldir);
486 return result;
487 }
488
489 static void vfswrap_rewinddir(vfs_handle_struct *handle, DIR *dirp)
490 {
491 START_PROFILE(syscall_rewinddir);
492 rewinddir(dirp);
493 END_PROFILE(syscall_rewinddir);
494 }
495
496 static int vfswrap_mkdir(vfs_handle_struct *handle,
497 const struct smb_filename *smb_fname,
498 mode_t mode)
499 {
500 int result;
501 const char *path = smb_fname->base_name;
502 char *parent = NULL;
503
504 START_PROFILE(syscall_mkdir);
505
506 if (lp_inherit_acls(SNUM(handle->conn))
507 && parent_dirname(talloc_tos(), path, &parent, NULL)
508 && directory_has_default_acl(handle->conn, parent)) {
509 mode = (0777 & lp_directory_mask(SNUM(handle->conn)));
510 }
511
512 TALLOC_FREE(parent);
513
514 result = mkdir(path, mode);
515
516 END_PROFILE(syscall_mkdir);
517 return result;
518 }
519
520 static int vfswrap_rmdir(vfs_handle_struct *handle,
521 const struct smb_filename *smb_fname)
522 {
523 int result;
524
525 START_PROFILE(syscall_rmdir);
526 result = rmdir(smb_fname->base_name);
527 END_PROFILE(syscall_rmdir);
528 return result;
529 }
530
531 static int vfswrap_closedir(vfs_handle_struct *handle, DIR *dirp)
532 {
533 int result;
534
535 START_PROFILE(syscall_closedir);
536 result = closedir(dirp);
537 END_PROFILE(syscall_closedir);
538 return result;
539 }
540
541 /* File operations */
542
543 static int vfswrap_open(vfs_handle_struct *handle,
544 struct smb_filename *smb_fname,
545 files_struct *fsp, int flags, mode_t mode)
546 {
547 int result = -1;
548
549 START_PROFILE(syscall_open);
550
551 if (smb_fname->stream_name) {
552 errno = ENOENT;
553 goto out;
554 }
555
556 result = open(smb_fname->base_name, flags, mode);
557 out:
558 END_PROFILE(syscall_open);
559 return result;
560 }
561
562 static NTSTATUS vfswrap_create_file(vfs_handle_struct *handle,
563 struct smb_request *req,
564 uint16_t root_dir_fid,
565 struct smb_filename *smb_fname,
566 uint32_t access_mask,
567 uint32_t share_access,
568 uint32_t create_disposition,
569 uint32_t create_options,
570 uint32_t file_attributes,
571 uint32_t oplock_request,
572 struct smb2_lease *lease,
573 uint64_t allocation_size,
574 uint32_t private_flags,
575 struct security_descriptor *sd,
576 struct ea_list *ea_list,
577 files_struct **result,
578 int *pinfo,
579 const struct smb2_create_blobs *in_context_blobs,
580 struct smb2_create_blobs *out_context_blobs)
581 {
582 return create_file_default(handle->conn, req, root_dir_fid, smb_fname,
583 access_mask, share_access,
584 create_disposition, create_options,
585 file_attributes, oplock_request, lease,
586 allocation_size, private_flags,
587 sd, ea_list, result,
588 pinfo, in_context_blobs, out_context_blobs);
589 }
590
591 static int vfswrap_close(vfs_handle_struct *handle, files_struct *fsp)
592 {
593 int result;
594
595 START_PROFILE(syscall_close);
596 result = fd_close_posix(fsp);
597 END_PROFILE(syscall_close);
598 return result;
599 }
600
601 static ssize_t vfswrap_pread(vfs_handle_struct *handle, files_struct *fsp, void *data,
602 size_t n, off_t offset)
603 {
604 ssize_t result;
605
606 #if defined(HAVE_PREAD) || defined(HAVE_PREAD64)
607 START_PROFILE_BYTES(syscall_pread, n);
608 result = sys_pread(fsp->fh->fd, data, n, offset);
609 END_PROFILE_BYTES(syscall_pread);
610
611 if (result == -1 && errno == ESPIPE) {
612 /* Maintain the fiction that pipes can be seeked (sought?) on. */
613 result = sys_read(fsp->fh->fd, data, n);
614 fsp->fh->pos = 0;
615 }
616
617 #else /* HAVE_PREAD */
618 errno = ENOSYS;
619 result = -1;
620 #endif /* HAVE_PREAD */
621
622 return result;
623 }
624
625 static ssize_t vfswrap_pwrite(vfs_handle_struct *handle, files_struct *fsp, const void *data,
626 size_t n, off_t offset)
627 {
628 ssize_t result;
629
630 #if defined(HAVE_PWRITE) || defined(HAVE_PRWITE64)
631 START_PROFILE_BYTES(syscall_pwrite, n);
632 result = sys_pwrite(fsp->fh->fd, data, n, offset);
633 END_PROFILE_BYTES(syscall_pwrite);
634
635 if (result == -1 && errno == ESPIPE) {
636 /* Maintain the fiction that pipes can be sought on. */
637 result = sys_write(fsp->fh->fd, data, n);
638 }
639
640 #else /* HAVE_PWRITE */
641 errno = ENOSYS;
642 result = -1;
643 #endif /* HAVE_PWRITE */
644
645 return result;
646 }
647
648 struct vfswrap_pread_state {
649 ssize_t ret;
650 int fd;
651 void *buf;
652 size_t count;
653 off_t offset;
654
655 struct vfs_aio_state vfs_aio_state;
656 SMBPROFILE_BYTES_ASYNC_STATE(profile_bytes);
657 };
658
659 static void vfs_pread_do(void *private_data);
660 static void vfs_pread_done(struct tevent_req *subreq);
661 static int vfs_pread_state_destructor(struct vfswrap_pread_state *state);
662
663 static struct tevent_req *vfswrap_pread_send(struct vfs_handle_struct *handle,
664 TALLOC_CTX *mem_ctx,
665 struct tevent_context *ev,
666 struct files_struct *fsp,
667 void *data,
668 size_t n, off_t offset)
669 {
670 struct tevent_req *req, *subreq;
671 struct vfswrap_pread_state *state;
672
673 req = tevent_req_create(mem_ctx, &state, struct vfswrap_pread_state);
674 if (req == NULL) {
675 return NULL;
676 }
677
678 state->ret = -1;
679 state->fd = fsp->fh->fd;
680 state->buf = data;
681 state->count = n;
682 state->offset = offset;
683
684 SMBPROFILE_BYTES_ASYNC_START(syscall_asys_pread, profile_p,
685 state->profile_bytes, n);
686 SMBPROFILE_BYTES_ASYNC_SET_IDLE(state->profile_bytes);
687
688 subreq = pthreadpool_tevent_job_send(
689 state, ev, handle->conn->sconn->pool,
690 vfs_pread_do, state);
691 if (tevent_req_nomem(subreq, req)) {
692 return tevent_req_post(req, ev);
693 }
694 tevent_req_set_callback(subreq, vfs_pread_done, req);
695
696 talloc_set_destructor(state, vfs_pread_state_destructor);
697
698 return req;
699 }
700
701 static void vfs_pread_do(void *private_data)
702 {
703 struct vfswrap_pread_state *state = talloc_get_type_abort(
704 private_data, struct vfswrap_pread_state);
705 struct timespec start_time;
706 struct timespec end_time;
707
708 SMBPROFILE_BYTES_ASYNC_SET_BUSY(state->profile_bytes);
709
710 PROFILE_TIMESTAMP(&start_time);
711
712 do {
713 state->ret = pread(state->fd, state->buf, state->count,
714 state->offset);
715 } while ((state->ret == -1) && (errno == EINTR));
716
717 if (state->ret == -1) {
718 state->vfs_aio_state.error = errno;
719 }
720
721 PROFILE_TIMESTAMP(&end_time);
722
723 state->vfs_aio_state.duration = nsec_time_diff(&end_time, &start_time);
724
725 SMBPROFILE_BYTES_ASYNC_SET_IDLE(state->profile_bytes);
726 }
727
728 static int vfs_pread_state_destructor(struct vfswrap_pread_state *state)
729 {
730 return -1;
731 }
732
733 static void vfs_pread_done(struct tevent_req *subreq)
734 {
735 struct tevent_req *req = tevent_req_callback_data(
736 subreq, struct tevent_req);
737 struct vfswrap_pread_state *state = tevent_req_data(
738 req, struct vfswrap_pread_state);
739 int ret;
740
741 ret = pthreadpool_tevent_job_recv(subreq);
742 TALLOC_FREE(subreq);
743 SMBPROFILE_BYTES_ASYNC_END(state->profile_bytes);
744 talloc_set_destructor(state, NULL);
745 if (tevent_req_error(req, ret)) {
746 return;
747 }
748
749 tevent_req_done(req);
750 }
751
752 static ssize_t vfswrap_pread_recv(struct tevent_req *req,
753 struct vfs_aio_state *vfs_aio_state)
754 {
755 struct vfswrap_pread_state *state = tevent_req_data(
756 req, struct vfswrap_pread_state);
757
758 if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
759 return -1;
760 }
761
762 *vfs_aio_state = state->vfs_aio_state;
763 return state->ret;
764 }
765
766 struct vfswrap_pwrite_state {
767 ssize_t ret;
768 int fd;
769 const void *buf;
770 size_t count;
771 off_t offset;
772
773 struct vfs_aio_state vfs_aio_state;
774 SMBPROFILE_BYTES_ASYNC_STATE(profile_bytes);
775 };
776
777 static void vfs_pwrite_do(void *private_data);
778 static void vfs_pwrite_done(struct tevent_req *subreq);
779 static int vfs_pwrite_state_destructor(struct vfswrap_pwrite_state *state);
780
781 static struct tevent_req *vfswrap_pwrite_send(struct vfs_handle_struct *handle,
782 TALLOC_CTX *mem_ctx,
783 struct tevent_context *ev,
784 struct files_struct *fsp,
785 const void *data,
786 size_t n, off_t offset)
787 {
788 struct tevent_req *req, *subreq;
789 struct vfswrap_pwrite_state *state;
790
791 req = tevent_req_create(mem_ctx, &state, struct vfswrap_pwrite_state);
792 if (req == NULL) {
793 return NULL;
794 }
795
796 state->ret = -1;
797 state->fd = fsp->fh->fd;
798 state->buf = data;
799 state->count = n;
800 state->offset = offset;
801
802 SMBPROFILE_BYTES_ASYNC_START(syscall_asys_pwrite, profile_p,
803 state->profile_bytes, n);
804 SMBPROFILE_BYTES_ASYNC_SET_IDLE(state->profile_bytes);
805
806 subreq = pthreadpool_tevent_job_send(
807 state, ev, handle->conn->sconn->pool,
808 vfs_pwrite_do, state);
809 if (tevent_req_nomem(subreq, req)) {
810 return tevent_req_post(req, ev);
811 }
812 tevent_req_set_callback(subreq, vfs_pwrite_done, req);
813
814 talloc_set_destructor(state, vfs_pwrite_state_destructor);
815
816 return req;
817 }
818
819 static void vfs_pwrite_do(void *private_data)
820 {
821 struct vfswrap_pwrite_state *state = talloc_get_type_abort(
822 private_data, struct vfswrap_pwrite_state);
823 struct timespec start_time;
824 struct timespec end_time;
825
826 SMBPROFILE_BYTES_ASYNC_SET_BUSY(state->profile_bytes);
827
828 PROFILE_TIMESTAMP(&start_time);
829
830 do {
831 state->ret = pwrite(state->fd, state->buf, state->count,
832 state->offset);
833 } while ((state->ret == -1) && (errno == EINTR));
834
835 if (state->ret == -1) {
836 state->vfs_aio_state.error = errno;
837 }
838
839 PROFILE_TIMESTAMP(&end_time);
840
841 state->vfs_aio_state.duration = nsec_time_diff(&end_time, &start_time);
842
843 SMBPROFILE_BYTES_ASYNC_SET_IDLE(state->profile_bytes);
844 }
845
846 static int vfs_pwrite_state_destructor(struct vfswrap_pwrite_state *state)
847 {
848 return -1;
849 }
850
851 static void vfs_pwrite_done(struct tevent_req *subreq)
852 {
853 struct tevent_req *req = tevent_req_callback_data(
854 subreq, struct tevent_req);
855 struct vfswrap_pwrite_state *state = tevent_req_data(
856 req, struct vfswrap_pwrite_state);
857 int ret;
858
859 ret = pthreadpool_tevent_job_recv(subreq);
860 TALLOC_FREE(subreq);
861 SMBPROFILE_BYTES_ASYNC_END(state->profile_bytes);
862 talloc_set_destructor(state, NULL);
863 if (tevent_req_error(req, ret)) {
864 return;
865 }
866
867 tevent_req_done(req);
868 }
869
870 static ssize_t vfswrap_pwrite_recv(struct tevent_req *req,
871 struct vfs_aio_state *vfs_aio_state)
872 {
873 struct vfswrap_pwrite_state *state = tevent_req_data(
874 req, struct vfswrap_pwrite_state);
875
876 if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
877 return -1;
878 }
879
880 *vfs_aio_state = state->vfs_aio_state;
881 return state->ret;
882 }
883
884 struct vfswrap_fsync_state {
885 ssize_t ret;
886 int fd;
887
888 struct vfs_aio_state vfs_aio_state;
889 SMBPROFILE_BASIC_ASYNC_STATE(profile_basic);
890 };
891
892 static void vfs_fsync_do(void *private_data);
893 static void vfs_fsync_done(struct tevent_req *subreq);
894 static int vfs_fsync_state_destructor(struct vfswrap_fsync_state *state);
895
896 static struct tevent_req *vfswrap_fsync_send(struct vfs_handle_struct *handle,
897 TALLOC_CTX *mem_ctx,
898 struct tevent_context *ev,
899 struct files_struct *fsp)
900 {
901 struct tevent_req *req, *subreq;
902 struct vfswrap_fsync_state *state;
903
904 req = tevent_req_create(mem_ctx, &state, struct vfswrap_fsync_state);
905 if (req == NULL) {
906 return NULL;
907 }
908
909 state->ret = -1;
910 state->fd = fsp->fh->fd;
911
912 SMBPROFILE_BASIC_ASYNC_START(syscall_asys_fsync, profile_p,
913 state->profile_basic);
914
915 subreq = pthreadpool_tevent_job_send(
916 state, ev, handle->conn->sconn->pool, vfs_fsync_do, state);
917 if (tevent_req_nomem(subreq, req)) {
918 return tevent_req_post(req, ev);
919 }
920 tevent_req_set_callback(subreq, vfs_fsync_done, req);
921
922 talloc_set_destructor(state, vfs_fsync_state_destructor);
923
924 return req;
925 }
926
927 static void vfs_fsync_do(void *private_data)
928 {
929 struct vfswrap_fsync_state *state = talloc_get_type_abort(
930 private_data, struct vfswrap_fsync_state);
931 struct timespec start_time;
932 struct timespec end_time;
933
934 PROFILE_TIMESTAMP(&start_time);
935
936 do {
937 state->ret = fsync(state->fd);
938 } while ((state->ret == -1) && (errno == EINTR));
939
940 if (state->ret == -1) {
941 state->vfs_aio_state.error = errno;
942 }
943
944 PROFILE_TIMESTAMP(&end_time);
945
946 state->vfs_aio_state.duration = nsec_time_diff(&end_time, &start_time);
947 }
948
949 static int vfs_fsync_state_destructor(struct vfswrap_fsync_state *state)
950 {
951 return -1;
952 }
953
954 static void vfs_fsync_done(struct tevent_req *subreq)
955 {
956 struct tevent_req *req = tevent_req_callback_data(
957 subreq, struct tevent_req);
958 struct vfswrap_fsync_state *state = tevent_req_data(
959 req, struct vfswrap_fsync_state);
960 int ret;
961
962 ret = pthreadpool_tevent_job_recv(subreq);
963 TALLOC_FREE(subreq);
964 SMBPROFILE_BASIC_ASYNC_END(state->profile_basic);
965 talloc_set_destructor(state, NULL);
966 if (tevent_req_error(req, ret)) {
967 return;
968 }
969
970 tevent_req_done(req);
971 }
972
973 static int vfswrap_fsync_recv(struct tevent_req *req,
974 struct vfs_aio_state *vfs_aio_state)
975 {
976 struct vfswrap_fsync_state *state = tevent_req_data(
977 req, struct vfswrap_fsync_state);
978
979 if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
980 return -1;
981 }
982
983 *vfs_aio_state = state->vfs_aio_state;
984 return state->ret;
985 }
986
987 static off_t vfswrap_lseek(vfs_handle_struct *handle, files_struct *fsp, off_t offset, int whence)
988 {
989 off_t result = 0;
990
991 START_PROFILE(syscall_lseek);
992
993 /* Cope with 'stat' file opens. */
994 if (fsp->fh->fd != -1)
995 result = lseek(fsp->fh->fd, offset, whence);
996
997 /*
998 * We want to maintain the fiction that we can seek
999 * on a fifo for file system purposes. This allows
1000 * people to set up UNIX fifo's that feed data to Windows
1001 * applications. JRA.
1002 */
1003
1004 if((result == -1) && (errno == ESPIPE)) {
1005 result = 0;
1006 errno = 0;
1007 }
1008
1009 END_PROFILE(syscall_lseek);
1010 return result;
1011 }
1012
1013 static ssize_t vfswrap_sendfile(vfs_handle_struct *handle, int tofd, files_struct *fromfsp, const DATA_BLOB *hdr,
1014 off_t offset, size_t n)
1015 {
1016 ssize_t result;
1017
1018 START_PROFILE_BYTES(syscall_sendfile, n);
1019 result = sys_sendfile(tofd, fromfsp->fh->fd, hdr, offset, n);
1020 END_PROFILE_BYTES(syscall_sendfile);
1021 return result;
1022 }
1023
1024 static ssize_t vfswrap_recvfile(vfs_handle_struct *handle,
1025 int fromfd,
1026 files_struct *tofsp,
1027 off_t offset,
1028 size_t n)
1029 {
1030 ssize_t result;
1031
1032 START_PROFILE_BYTES(syscall_recvfile, n);
1033 result = sys_recvfile(fromfd, tofsp->fh->fd, offset, n);
1034 END_PROFILE_BYTES(syscall_recvfile);
1035 return result;
1036 }
1037
1038 static int vfswrap_rename(vfs_handle_struct *handle,
1039 const struct smb_filename *smb_fname_src,
1040 const struct smb_filename *smb_fname_dst)
1041 {
1042 int result = -1;
1043
1044 START_PROFILE(syscall_rename);
1045
1046 if (smb_fname_src->stream_name || smb_fname_dst->stream_name) {
1047 errno = ENOENT;
1048 goto out;
1049 }
1050
1051 result = rename(smb_fname_src->base_name, smb_fname_dst->base_name);
1052
1053 out:
1054 END_PROFILE(syscall_rename);
1055 return result;
1056 }
1057
1058 static int vfswrap_stat(vfs_handle_struct *handle,
1059 struct smb_filename *smb_fname)
1060 {
1061 int result = -1;
1062
1063 START_PROFILE(syscall_stat);
1064
1065 if (smb_fname->stream_name) {
1066 errno = ENOENT;
1067 goto out;
1068 }
1069
1070 result = sys_stat(smb_fname->base_name, &smb_fname->st,
1071 lp_fake_directory_create_times(SNUM(handle->conn)));
1072 out:
1073 END_PROFILE(syscall_stat);
1074 return result;
1075 }
1076
1077 static int vfswrap_fstat(vfs_handle_struct *handle, files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1078 {
1079 int result;
1080
1081 START_PROFILE(syscall_fstat);
1082 result = sys_fstat(fsp->fh->fd,
1083 sbuf, lp_fake_directory_create_times(SNUM(handle->conn)));
1084 END_PROFILE(syscall_fstat);
1085 return result;
1086 }
1087
1088 static int vfswrap_lstat(vfs_handle_struct *handle,
1089 struct smb_filename *smb_fname)
1090 {
1091 int result = -1;
1092
1093 START_PROFILE(syscall_lstat);
1094
1095 if (smb_fname->stream_name) {
1096 errno = ENOENT;
1097 goto out;
1098 }
1099
1100 result = sys_lstat(smb_fname->base_name, &smb_fname->st,
1101 lp_fake_directory_create_times(SNUM(handle->conn)));
1102 out:
1103 END_PROFILE(syscall_lstat);
1104 return result;
1105 }
1106
1107 static NTSTATUS vfswrap_translate_name(struct vfs_handle_struct *handle,
1108 const char *name,
1109 enum vfs_translate_direction direction,
1110 TALLOC_CTX *mem_ctx,
1111 char **mapped_name)
1112 {
1113 return NT_STATUS_NONE_MAPPED;
1114 }
1115
1116 /*
1117 * Implement the default fsctl operation.
1118 */
1119 static bool vfswrap_logged_ioctl_message = false;
1120
1121 static NTSTATUS vfswrap_fsctl(struct vfs_handle_struct *handle,
1122 struct files_struct *fsp,
1123 TALLOC_CTX *ctx,
1124 uint32_t function,
1125 uint16_t req_flags, /* Needed for UNICODE ... */
1126 const uint8_t *_in_data,
1127 uint32_t in_len,
1128 uint8_t **_out_data,
1129 uint32_t max_out_len,
1130 uint32_t *out_len)
1131 {
1132 const char *in_data = (const char *)_in_data;
1133 char **out_data = (char **)_out_data;
1134 NTSTATUS status;
1135
1136 switch (function) {
1137 case FSCTL_SET_SPARSE:
1138 {
1139 bool set_sparse = true;
1140
1141 if (in_len >= 1 && in_data[0] == 0) {
1142 set_sparse = false;
1143 }
1144
1145 status = file_set_sparse(handle->conn, fsp, set_sparse);
1146
1147 DEBUG(NT_STATUS_IS_OK(status) ? 10 : 9,
1148 ("FSCTL_SET_SPARSE: fname[%s] set[%u] - %s\n",
1149 smb_fname_str_dbg(fsp->fsp_name), set_sparse,
1150 nt_errstr(status)));
1151
1152 return status;
1153 }
1154
1155 case FSCTL_CREATE_OR_GET_OBJECT_ID:
1156 {
1157 unsigned char objid[16];
1158 char *return_data = NULL;
1159
1160 /* This should return the object-id on this file.
1161 * I think I'll make this be the inode+dev. JRA.
1162 */
1163
1164 DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on %s\n",
1165 fsp_fnum_dbg(fsp)));
1166
1167 *out_len = MIN(max_out_len, 64);
1168
1169 /* Hmmm, will this cause problems if less data asked for? */
1170 return_data = talloc_array(ctx, char, 64);
1171 if (return_data == NULL) {
1172 return NT_STATUS_NO_MEMORY;
1173 }
1174
1175 /* For backwards compatibility only store the dev/inode. */
1176 push_file_id_16(return_data, &fsp->file_id);
1177 memcpy(return_data+16,create_volume_objectid(fsp->conn,objid),16);
1178 push_file_id_16(return_data+32, &fsp->file_id);
1179 memset(return_data+48, 0, 16);
1180 *out_data = return_data;
1181 return NT_STATUS_OK;
1182 }
1183
1184 case FSCTL_GET_REPARSE_POINT:
1185 {
1186 /* Fail it with STATUS_NOT_A_REPARSE_POINT */
1187 DEBUG(10, ("FSCTL_GET_REPARSE_POINT: called on %s. "
1188 "Status: NOT_IMPLEMENTED\n", fsp_fnum_dbg(fsp)));
1189 return NT_STATUS_NOT_A_REPARSE_POINT;
1190 }
1191
1192 case FSCTL_SET_REPARSE_POINT:
1193 {
1194 /* Fail it with STATUS_NOT_A_REPARSE_POINT */
1195 DEBUG(10, ("FSCTL_SET_REPARSE_POINT: called on %s. "
1196 "Status: NOT_IMPLEMENTED\n", fsp_fnum_dbg(fsp)));
1197 return NT_STATUS_NOT_A_REPARSE_POINT;
1198 }
1199
1200 case FSCTL_GET_SHADOW_COPY_DATA:
1201 {
1202 /*
1203 * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
1204 * and return their volume names. If max_data_count is 16, then it is just
1205 * asking for the number of volumes and length of the combined names.
1206 *
1207 * pdata is the data allocated by our caller, but that uses
1208 * total_data_count (which is 0 in our case) rather than max_data_count.
1209 * Allocate the correct amount and return the pointer to let
1210 * it be deallocated when we return.
1211 */
1212 struct shadow_copy_data *shadow_data = NULL;
1213 bool labels = False;
1214 uint32_t labels_data_count = 0;
1215 uint32_t i;
1216 char *cur_pdata = NULL;
1217
1218 if (max_out_len < 16) {
1219 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
1220 max_out_len));
1221 return NT_STATUS_INVALID_PARAMETER;
1222 }
1223
1224 if (max_out_len > 16) {
1225 labels = True;
1226 }
1227
1228 shadow_data = talloc_zero(ctx, struct shadow_copy_data);
1229 if (shadow_data == NULL) {
1230 DEBUG(0,("TALLOC_ZERO() failed!\n"));
1231 return NT_STATUS_NO_MEMORY;
1232 }
1233
1234 /*
1235 * Call the VFS routine to actually do the work.
1236 */
1237 if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
1238 int log_lev = 0;
1239 if (errno == 0) {
1240 /* broken module didn't set errno on error */
1241 status = NT_STATUS_UNSUCCESSFUL;
1242 } else {
1243 status = map_nt_error_from_unix(errno);
1244 if (NT_STATUS_EQUAL(status,
1245 NT_STATUS_NOT_SUPPORTED)) {
1246 log_lev = 5;
1247 }
1248 }
1249 DEBUG(log_lev, ("FSCTL_GET_SHADOW_COPY_DATA: "
1250 "connectpath %s, failed - %s.\n",
1251 fsp->conn->connectpath,
1252 nt_errstr(status)));
1253 TALLOC_FREE(shadow_data);
1254 return status;
1255 }
1256
1257 labels_data_count = (shadow_data->num_volumes * 2 *
1258 sizeof(SHADOW_COPY_LABEL)) + 2;
1259
1260 if (!labels) {
1261 *out_len = 16;
1262 } else {
1263 *out_len = 12 + labels_data_count;
1264 }
1265
1266 if (max_out_len < *out_len) {
1267 DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
1268 max_out_len, *out_len));
1269 TALLOC_FREE(shadow_data);
1270 return NT_STATUS_BUFFER_TOO_SMALL;
1271 }
1272
1273 cur_pdata = talloc_zero_array(ctx, char, *out_len);
1274 if (cur_pdata == NULL) {
1275 TALLOC_FREE(shadow_data);
1276 return NT_STATUS_NO_MEMORY;
1277 }
1278
1279 *out_data = cur_pdata;
1280
1281 /* num_volumes 4 bytes */
1282 SIVAL(cur_pdata, 0, shadow_data->num_volumes);
1283
1284 if (labels) {
1285 /* num_labels 4 bytes */
1286 SIVAL(cur_pdata, 4, shadow_data->num_volumes);
1287 }
1288
1289 /* needed_data_count 4 bytes */
1290 SIVAL(cur_pdata, 8, labels_data_count);
1291
1292 cur_pdata += 12;
1293
1294 DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
1295 shadow_data->num_volumes, fsp_str_dbg(fsp)));
1296 if (labels && shadow_data->labels) {
1297 for (i=0; i<shadow_data->num_volumes; i++) {
1298 size_t len = 0;
1299 status = srvstr_push(cur_pdata, req_flags,
1300 cur_pdata, shadow_data->labels[i],
1301 2 * sizeof(SHADOW_COPY_LABEL),
1302 STR_UNICODE|STR_TERMINATE, &len);
1303 if (!NT_STATUS_IS_OK(status)) {
1304 TALLOC_FREE(*out_data);
1305 TALLOC_FREE(shadow_data);
1306 return status;
1307 }
1308 cur_pdata += 2 * sizeof(SHADOW_COPY_LABEL);
1309 DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
1310 }
1311 }
1312
1313 TALLOC_FREE(shadow_data);
1314
1315 return NT_STATUS_OK;
1316 }
1317
1318 case FSCTL_FIND_FILES_BY_SID:
1319 {
1320 /* pretend this succeeded -
1321 *
1322 * we have to send back a list with all files owned by this SID
1323 *
1324 * but I have to check that --metze
1325 */
1326 struct dom_sid sid;
1327 uid_t uid;
1328 size_t sid_len;
1329
1330 DEBUG(10, ("FSCTL_FIND_FILES_BY_SID: called on %s\n",
1331 fsp_fnum_dbg(fsp)));
1332
1333 if (in_len < 8) {
1334 /* NT_STATUS_BUFFER_TOO_SMALL maybe? */
1335 return NT_STATUS_INVALID_PARAMETER;
1336 }
1337
1338 sid_len = MIN(in_len - 4,SID_MAX_SIZE);
1339
1340 /* unknown 4 bytes: this is not the length of the sid :-( */
1341 /*unknown = IVAL(pdata,0);*/
1342
1343 if (!sid_parse(_in_data + 4, sid_len, &sid)) {
1344 return NT_STATUS_INVALID_PARAMETER;
1345 }
1346 DEBUGADD(10, ("for SID: %s\n", sid_string_dbg(&sid)));
1347
1348 if (!sid_to_uid(&sid, &uid)) {
1349 DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
1350 sid_string_dbg(&sid),
1351 (unsigned long)sid_len));
1352 uid = (-1);
1353 }
1354
1355 /* we can take a look at the find source :-)
1356 *
1357 * find ./ -uid $uid -name '*' is what we need here
1358 *
1359 *
1360 * and send 4bytes len and then NULL terminated unicode strings
1361 * for each file
1362 *
1363 * but I don't know how to deal with the paged results
1364 * (maybe we can hang the result anywhere in the fsp struct)
1365 *
1366 * but I don't know how to deal with the paged results
1367 * (maybe we can hang the result anywhere in the fsp struct)
1368 *
1369 * we don't send all files at once
1370 * and at the next we should *not* start from the beginning,
1371 * so we have to cache the result
1372 *
1373 * --metze
1374 */
1375
1376 /* this works for now... */
1377 return NT_STATUS_OK;
1378 }
1379
1380 case FSCTL_QUERY_ALLOCATED_RANGES:
1381 {
1382 /* FIXME: This is just a dummy reply, telling that all of the
1383 * file is allocated. MKS cp needs that.
1384 * Adding the real allocated ranges via FIEMAP on Linux
1385 * and SEEK_DATA/SEEK_HOLE on Solaris is needed to make
1386 * this FSCTL correct for sparse files.
1387 */
1388 uint64_t offset, length;
1389 char *out_data_tmp = NULL;
1390
1391 if (in_len != 16) {
1392 DEBUG(0,("FSCTL_QUERY_ALLOCATED_RANGES: data_count(%u) != 16 is invalid!\n",
1393 in_len));
1394 return NT_STATUS_INVALID_PARAMETER;
1395 }
1396
1397 if (max_out_len < 16) {
1398 DEBUG(0,("FSCTL_QUERY_ALLOCATED_RANGES: max_out_len (%u) < 16 is invalid!\n",
1399 max_out_len));
1400 return NT_STATUS_INVALID_PARAMETER;
1401 }
1402
1403 offset = BVAL(in_data,0);
1404 length = BVAL(in_data,8);
1405
1406 if (offset + length < offset) {
1407 /* No 64-bit integer wrap. */
1408 return NT_STATUS_INVALID_PARAMETER;
1409 }
1410
1411 /* Shouldn't this be SMB_VFS_STAT ... ? */
1412 status = vfs_stat_fsp(fsp);
1413 if (!NT_STATUS_IS_OK(status)) {
1414 return status;
1415 }
1416
1417 *out_len = 16;
1418 out_data_tmp = talloc_array(ctx, char, *out_len);
1419 if (out_data_tmp == NULL) {
1420 DEBUG(10, ("unable to allocate memory for response\n"));
1421 return NT_STATUS_NO_MEMORY;
1422 }
1423
1424 if (offset > fsp->fsp_name->st.st_ex_size ||
1425 fsp->fsp_name->st.st_ex_size == 0 ||
1426 length == 0) {
1427 memset(out_data_tmp, 0, *out_len);
1428 } else {
1429 uint64_t end = offset + length;
1430 end = MIN(end, fsp->fsp_name->st.st_ex_size);
1431 SBVAL(out_data_tmp, 0, 0);
1432 SBVAL(out_data_tmp, 8, end);
1433 }
1434
1435 *out_data = out_data_tmp;
1436
1437 return NT_STATUS_OK;
1438 }
1439
1440 case FSCTL_IS_VOLUME_DIRTY:
1441 {
1442 DEBUG(10,("FSCTL_IS_VOLUME_DIRTY: called on %s "
1443 "(but remotely not supported)\n", fsp_fnum_dbg(fsp)));
1444 /*
1445 * http://msdn.microsoft.com/en-us/library/cc232128%28PROT.10%29.aspx
1446 * says we have to respond with NT_STATUS_INVALID_PARAMETER
1447 */
1448 return NT_STATUS_INVALID_PARAMETER;
1449 }
1450
1451 default:
1452 /*
1453 * Only print once ... unfortunately there could be lots of
1454 * different FSCTLs that are called.
1455 */
1456 if (!vfswrap_logged_ioctl_message) {
1457 vfswrap_logged_ioctl_message = true;
1458 DEBUG(2, ("%s (0x%x): Currently not implemented.\n",
1459 __func__, function));
1460 }
1461 }
1462
1463 return NT_STATUS_NOT_SUPPORTED;
1464 }
1465
1466 static bool vfswrap_is_offline(struct vfs_handle_struct *handle,
1467 const struct smb_filename *fname,
1468 SMB_STRUCT_STAT *sbuf);
1469
1470 static NTSTATUS vfswrap_get_dos_attributes(struct vfs_handle_struct *handle,
1471 struct smb_filename *smb_fname,
1472 uint32_t *dosmode)
1473 {
1474 bool offline;
1475
1476 offline = vfswrap_is_offline(handle, smb_fname, &smb_fname->st);
1477 if (offline) {
1478 *dosmode |= FILE_ATTRIBUTE_OFFLINE;
1479 }
1480
1481 return get_ea_dos_attribute(handle->conn, smb_fname, dosmode);
1482 }
1483
1484 static NTSTATUS vfswrap_fget_dos_attributes(struct vfs_handle_struct *handle,
1485 struct files_struct *fsp,
1486 uint32_t *dosmode)
1487 {
1488 bool offline;
1489
1490 offline = vfswrap_is_offline(handle, fsp->fsp_name, &fsp->fsp_name->st);
1491 if (offline) {
1492 *dosmode |= FILE_ATTRIBUTE_OFFLINE;
1493 }
1494
1495 return get_ea_dos_attribute(handle->conn, fsp->fsp_name, dosmode);
1496 }
1497
1498 static NTSTATUS vfswrap_set_dos_attributes(struct vfs_handle_struct *handle,
1499 const struct smb_filename *smb_fname,
1500 uint32_t dosmode)
1501 {
1502 return set_ea_dos_attribute(handle->conn, smb_fname, dosmode);
1503 }
1504
1505 static NTSTATUS vfswrap_fset_dos_attributes(struct vfs_handle_struct *handle,
1506 struct files_struct *fsp,
1507 uint32_t dosmode)
1508 {
1509 return set_ea_dos_attribute(handle->conn, fsp->fsp_name, dosmode);
1510 }
1511
1512 static struct vfs_offload_ctx *vfswrap_offload_ctx;
1513
1514 struct vfswrap_offload_read_state {
1515 DATA_BLOB token;
1516 };
1517
1518 static struct tevent_req *vfswrap_offload_read_send(
1519 TALLOC_CTX *mem_ctx,
1520 struct tevent_context *ev,
1521 struct vfs_handle_struct *handle,
1522 struct files_struct *fsp,
1523 uint32_t fsctl,
1524 uint32_t ttl,
1525 off_t offset,
1526 size_t to_copy)
1527 {
1528 struct tevent_req *req = NULL;
1529 struct vfswrap_offload_read_state *state = NULL;
1530 NTSTATUS status;
1531
1532 req = tevent_req_create(mem_ctx, &state,
1533 struct vfswrap_offload_read_state);
1534 if (req == NULL) {
1535 return NULL;
1536 }
1537
1538 status = vfs_offload_token_ctx_init(fsp->conn->sconn->client,
1539 &vfswrap_offload_ctx);
1540 if (tevent_req_nterror(req, status)) {
1541 return tevent_req_post(req, ev);
1542 }
1543
1544 if (fsctl != FSCTL_SRV_REQUEST_RESUME_KEY) {
1545 tevent_req_nterror(req, NT_STATUS_INVALID_DEVICE_REQUEST);
1546 return tevent_req_post(req, ev);
1547 }
1548
1549 status = vfs_offload_token_create_blob(state, fsp, fsctl,
1550 &state->token);
1551 if (tevent_req_nterror(req, status)) {
1552 return tevent_req_post(req, ev);
1553 }
1554
1555 status = vfs_offload_token_db_store_fsp(vfswrap_offload_ctx, fsp,
1556 &state->token);
1557 if (tevent_req_nterror(req, status)) {
1558 return tevent_req_post(req, ev);
1559 }
1560
1561 tevent_req_done(req);
1562 return tevent_req_post(req, ev);
1563 }
1564
1565 static NTSTATUS vfswrap_offload_read_recv(struct tevent_req *req,
1566 struct vfs_handle_struct *handle,
1567 TALLOC_CTX *mem_ctx,
1568 DATA_BLOB *token)
1569 {
1570 struct vfswrap_offload_read_state *state = tevent_req_data(
1571 req, struct vfswrap_offload_read_state);
1572 NTSTATUS status;
1573
1574 if (tevent_req_is_nterror(req, &status)) {
1575 tevent_req_received(req);
1576 return status;
1577 }
1578
1579 token->length = state->token.length;
1580 token->data = talloc_move(mem_ctx, &state->token.data);
1581
1582 tevent_req_received(req);
1583 return NT_STATUS_OK;
1584 }
1585
1586 struct vfswrap_offload_write_state {
1587 uint8_t *buf;
1588 bool read_lck_locked;
1589 bool write_lck_locked;
1590 DATA_BLOB *token;
1591 struct tevent_context *src_ev;
1592 struct files_struct *src_fsp;
1593 off_t src_off;
1594 struct tevent_context *dst_ev;
1595 struct files_struct *dst_fsp;
1596 off_t dst_off;
1597 off_t to_copy;
1598 off_t remaining;
1599 size_t next_io_size;
1600 };
1601
1602 static void vfswrap_offload_write_cleanup(struct tevent_req *req,
1603 enum tevent_req_state req_state)
1604 {
1605 struct vfswrap_offload_write_state *state = tevent_req_data(
1606 req, struct vfswrap_offload_write_state);
1607 bool ok;
1608
1609 if (state->dst_fsp == NULL) {
1610 return;
1611 }
1612
1613 ok = change_to_user_by_fsp(state->dst_fsp);
1614 SMB_ASSERT(ok);
1615 state->dst_fsp = NULL;
1616 }
1617
1618 static NTSTATUS vfswrap_offload_write_loop(struct tevent_req *req);
1619
1620 static struct tevent_req *vfswrap_offload_write_send(
1621 struct vfs_handle_struct *handle,
1622 TALLOC_CTX *mem_ctx,
1623 struct tevent_context *ev,
1624 uint32_t fsctl,
1625 DATA_BLOB *token,
1626 off_t transfer_offset,
1627 struct files_struct *dest_fsp,
1628 off_t dest_off,
1629 off_t to_copy)
1630 {
1631 struct tevent_req *req;
1632 struct vfswrap_offload_write_state *state = NULL;
1633 size_t num = MIN(to_copy, COPYCHUNK_MAX_TOTAL_LEN);
1634 files_struct *src_fsp = NULL;
1635 NTSTATUS status;
1636 bool ok;
1637
1638 req = tevent_req_create(mem_ctx, &state,
1639 struct vfswrap_offload_write_state);
1640 if (req == NULL) {
1641 return NULL;
1642 }
1643
1644 *state = (struct vfswrap_offload_write_state) {
1645 .token = token,
1646 .src_off = transfer_offset,
1647 .dst_ev = ev,
1648 .dst_fsp = dest_fsp,
1649 .dst_off = dest_off,
1650 .to_copy = to_copy,
1651 .remaining = to_copy,
1652 };
1653
1654 tevent_req_set_cleanup_fn(req, vfswrap_offload_write_cleanup);
1655
1656 switch (fsctl) {
1657 case FSCTL_SRV_COPYCHUNK:
1658 case FSCTL_SRV_COPYCHUNK_WRITE:
1659 break;
1660
1661 case FSCTL_OFFLOAD_WRITE:
1662 tevent_req_nterror(req, NT_STATUS_NOT_IMPLEMENTED);
1663 return tevent_req_post(req, ev);
1664
1665 case FSCTL_DUP_EXTENTS_TO_FILE:
1666 DBG_DEBUG("COW clones not supported by vfs_default\n");
1667 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
1668 return tevent_req_post(req, ev);
1669
1670 default:
1671 tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR);
1672 return tevent_req_post(req, ev);
1673 }
1674
1675 /*
1676 * From here on we assume a copy-chunk fsctl
1677 */
1678
1679 if (to_copy == 0) {
1680 tevent_req_done(req);
1681 return tevent_req_post(req, ev);
1682 }
1683
1684 status = vfs_offload_token_db_fetch_fsp(vfswrap_offload_ctx,
1685 token, &src_fsp);
1686 if (tevent_req_nterror(req, status)) {
1687 return tevent_req_post(req, ev);
1688 }
1689
1690 DBG_DEBUG("server side copy chunk of length %" PRIu64 "\n", to_copy);
1691
1692 status = vfs_offload_token_check_handles(fsctl, src_fsp, dest_fsp);
1693 if (!NT_STATUS_IS_OK(status)) {
1694 tevent_req_nterror(req, status);
1695 return tevent_req_post(req, ev);
1696 }
1697
1698 ok = change_to_user_by_fsp(src_fsp);
1699 if (!ok) {
1700 tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
1701 return tevent_req_post(req, ev);
1702 }
1703
1704 state->src_ev = src_fsp->conn->user_ev_ctx;
1705 state->src_fsp = src_fsp;
1706
1707 state->buf = talloc_array(state, uint8_t, num);
1708 if (tevent_req_nomem(state->buf, req)) {
1709 return tevent_req_post(req, ev);
1710 }
1711
1712 status = vfs_stat_fsp(src_fsp);
1713 if (tevent_req_nterror(req, status)) {
1714 return tevent_req_post(req, ev);
1715 }
1716
1717 if (src_fsp->fsp_name->st.st_ex_size < state->src_off + num) {
1718 /*
1719 * [MS-SMB2] 3.3.5.15.6 Handling a Server-Side Data Copy Request
1720 * If the SourceOffset or SourceOffset + Length extends beyond
1721 * the end of file, the server SHOULD<240> treat this as a
1722 * STATUS_END_OF_FILE error.
1723 * ...
1724 * <240> Section 3.3.5.15.6: Windows servers will return
1725 * STATUS_INVALID_VIEW_SIZE instead of STATUS_END_OF_FILE.
1726 */
1727 tevent_req_nterror(req, NT_STATUS_INVALID_VIEW_SIZE);
1728 return tevent_req_post(req, ev);
1729 }
1730
1731 status = vfswrap_offload_write_loop(req);
1732 if (!NT_STATUS_IS_OK(status)) {
1733 tevent_req_nterror(req, status);
1734 return tevent_req_post(req, ev);
1735 }
1736
1737 return req;
1738 }
1739
1740 static void vfswrap_offload_write_read_done(struct tevent_req *subreq);
1741
1742 static NTSTATUS vfswrap_offload_write_loop(struct tevent_req *req)
1743 {
1744 struct vfswrap_offload_write_state *state = tevent_req_data(
1745 req, struct vfswrap_offload_write_state);
1746 struct tevent_req *subreq = NULL;
1747 struct lock_struct read_lck;
1748 bool ok;
1749
1750 /*
1751 * This is called under the context of state->src_fsp.
1752 */
1753
1754 state->next_io_size = MIN(state->remaining, talloc_array_length(state->buf));
1755
1756 init_strict_lock_struct(state->src_fsp,
1757 state->src_fsp->op->global->open_persistent_id,
1758 state->src_off,
1759 state->next_io_size,
1760 READ_LOCK,
1761 &read_lck);
1762
1763 ok = SMB_VFS_STRICT_LOCK_CHECK(state->src_fsp->conn,
1764 state->src_fsp,
1765 &read_lck);
1766 if (!ok) {
1767 return NT_STATUS_FILE_LOCK_CONFLICT;
1768 }
1769
1770 subreq = SMB_VFS_PREAD_SEND(state,
1771 state->src_ev,
1772 state->src_fsp,
1773 state->buf,
1774 state->next_io_size,
1775 state->src_off);
1776 if (subreq == NULL) {
1777 return NT_STATUS_NO_MEMORY;
1778 }
1779 tevent_req_set_callback(subreq, vfswrap_offload_write_read_done, req);
1780
1781 return NT_STATUS_OK;
1782 }
1783
1784 static void vfswrap_offload_write_write_done(struct tevent_req *subreq);
1785
1786 static void vfswrap_offload_write_read_done(struct tevent_req *subreq)
1787 {
1788 struct tevent_req *req = tevent_req_callback_data(
1789 subreq, struct tevent_req);
1790 struct vfswrap_offload_write_state *state = tevent_req_data(
1791 req, struct vfswrap_offload_write_state);
1792 struct vfs_aio_state aio_state;
1793 struct lock_struct write_lck;
1794 ssize_t nread;
1795 bool ok;
1796
1797 nread = SMB_VFS_PREAD_RECV(subreq, &aio_state);
1798 TALLOC_FREE(subreq);
1799 if (nread == -1) {
1800 DBG_ERR("read failed: %s\n", strerror(errno));
1801 tevent_req_nterror(req, map_nt_error_from_unix(aio_state.error));
1802 return;
1803 }
1804 if (nread != state->next_io_size) {
1805 DBG_ERR("Short read, only %zd of %zu\n",
1806 nread, state->next_io_size);
1807 tevent_req_nterror(req, NT_STATUS_IO_DEVICE_ERROR);
1808 return;
1809 }
1810
1811 state->src_off += nread;
1812
1813 ok = change_to_user_by_fsp(state->dst_fsp);
1814 if (!ok) {
1815 tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR);
1816 return;
1817 }
1818
1819 init_strict_lock_struct(state->dst_fsp,
1820 state->dst_fsp->op->global->open_persistent_id,
1821 state->dst_off,
1822 state->next_io_size,
1823 WRITE_LOCK,
1824 &write_lck);
1825
1826 ok = SMB_VFS_STRICT_LOCK_CHECK(state->dst_fsp->conn,
1827 state->dst_fsp,
1828 &write_lck);
1829 if (!ok) {
1830 tevent_req_nterror(req, NT_STATUS_FILE_LOCK_CONFLICT);
1831 return;
1832 }
1833
1834 subreq = SMB_VFS_PWRITE_SEND(state,
1835 state->dst_ev,
1836 state->dst_fsp,
1837 state->buf,
1838 state->next_io_size,
1839 state->dst_off);
1840 if (subreq == NULL) {
1841 tevent_req_nterror(req, NT_STATUS_NO_MEMORY);
1842 return;
1843 }
1844 tevent_req_set_callback(subreq, vfswrap_offload_write_write_done, req);
1845 }
1846
1847 static void vfswrap_offload_write_write_done(struct tevent_req *subreq)
1848 {
1849 struct tevent_req *req = tevent_req_callback_data(
1850 subreq, struct tevent_req);
1851 struct vfswrap_offload_write_state *state = tevent_req_data(
1852 req, struct vfswrap_offload_write_state);
1853 struct vfs_aio_state aio_state;
1854 ssize_t nwritten;
1855 NTSTATUS status;
1856 bool ok;
1857
1858 nwritten = SMB_VFS_PWRITE_RECV(subreq, &aio_state);
1859 TALLOC_FREE(subreq);
1860 if (nwritten == -1) {
1861 DBG_ERR("write failed: %s\n", strerror(errno));
1862 tevent_req_nterror(req, map_nt_error_from_unix(aio_state.error));
1863 return;
1864 }
1865 if (nwritten != state->next_io_size) {
1866 DBG_ERR("Short write, only %zd of %zu\n", nwritten, state->next_io_size);
1867 tevent_req_nterror(req, NT_STATUS_IO_DEVICE_ERROR);
1868 return;
1869 }
1870
1871 state->dst_off += nwritten;
1872
1873 if (state->remaining < nwritten) {
1874 /* Paranoia check */
1875 tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR);
1876 return;
1877 }
1878 state->remaining -= nwritten;
1879 if (state->remaining == 0) {
1880 tevent_req_done(req);
1881 return;
1882 }
1883
1884 ok = change_to_user_by_fsp(state->src_fsp);
1885 if (!ok) {
1886 tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR);
1887 return;
1888 }
1889
1890 status = vfswrap_offload_write_loop(req);
1891 if (!NT_STATUS_IS_OK(status)) {
1892 tevent_req_nterror(req, status);
1893 return;
1894 }
1895
1896 return;
1897 }
1898
1899 static NTSTATUS vfswrap_offload_write_recv(struct vfs_handle_struct *handle,
1900 struct tevent_req *req,
1901 off_t *copied)
1902 {
1903 struct vfswrap_offload_write_state *state = tevent_req_data(
1904 req, struct vfswrap_offload_write_state);
1905 NTSTATUS status;
1906
1907 if (tevent_req_is_nterror(req, &status)) {
1908 DBG_DEBUG("copy chunk failed: %s\n", nt_errstr(status));
1909 *copied = 0;
1910 tevent_req_received(req);
1911 return status;
1912 }
1913
1914 *copied = state->to_copy;
1915 DBG_DEBUG("copy chunk copied %lu\n", (unsigned long)*copied);
1916 tevent_req_received(req);
1917
1918 return NT_STATUS_OK;
1919 }
1920
1921 static NTSTATUS vfswrap_get_compression(struct vfs_handle_struct *handle,
1922 TALLOC_CTX *mem_ctx,
1923 struct files_struct *fsp,
1924 struct smb_filename *smb_fname,
1925 uint16_t *_compression_fmt)
1926 {
1927 return NT_STATUS_INVALID_DEVICE_REQUEST;
1928 }
1929
1930 static NTSTATUS vfswrap_set_compression(struct vfs_handle_struct *handle,
1931 TALLOC_CTX *mem_ctx,
1932 struct files_struct *fsp,
1933 uint16_t compression_fmt)
1934 {
1935 return NT_STATUS_INVALID_DEVICE_REQUEST;
1936 }
1937
1938 /********************************************************************
1939 Given a stat buffer return the allocated size on disk, taking into
1940 account sparse files.
1941 ********************************************************************/
1942 static uint64_t vfswrap_get_alloc_size(vfs_handle_struct *handle,
1943 struct files_struct *fsp,
1944 const SMB_STRUCT_STAT *sbuf)
1945 {
1946 uint64_t result;
1947
1948 START_PROFILE(syscall_get_alloc_size);
1949
1950 if(S_ISDIR(sbuf->st_ex_mode)) {
1951 result = 0;
1952 goto out;
1953 }
1954
1955 #if defined(HAVE_STAT_ST_BLOCKS) && defined(STAT_ST_BLOCKSIZE)
1956 /* The type of st_blocksize is blkcnt_t which *MUST* be
1957 signed (according to POSIX) and can be less than 64-bits.
1958 Ensure when we're converting to 64 bits wide we don't
1959 sign extend. */
1960 #if defined(SIZEOF_BLKCNT_T_8)
1961 result = (uint64_t)STAT_ST_BLOCKSIZE * (uint64_t)sbuf->st_ex_blocks;
1962 #elif defined(SIZEOF_BLKCNT_T_4)
1963 {
1964 uint64_t bs = ((uint64_t)sbuf->st_ex_blocks) & 0xFFFFFFFFLL;
1965 result = (uint64_t)STAT_ST_BLOCKSIZE * bs;
1966 }
1967 #else
1968 #error SIZEOF_BLKCNT_T_NOT_A_SUPPORTED_VALUE
1969 #endif
1970 if (result == 0) {
1971 /*
1972 * Some file systems do not allocate a block for very
1973 * small files. But for non-empty file should report a
1974 * positive size.
1975 */
1976
1977 uint64_t filesize = get_file_size_stat(sbuf);
1978 if (filesize > 0) {
1979 result = MIN((uint64_t)STAT_ST_BLOCKSIZE, filesize);
1980 }
1981 }
1982 #else
1983 result = get_file_size_stat(sbuf);
1984 #endif
1985
1986 if (fsp && fsp->initial_allocation_size)
1987 result = MAX(result,fsp->initial_allocation_size);
1988
1989 result = smb_roundup(handle->conn, result);
1990
1991 out:
1992 END_PROFILE(syscall_get_alloc_size);
1993 return result;
1994 }
1995
1996 static int vfswrap_unlink(vfs_handle_struct *handle,
1997 const struct smb_filename *smb_fname)
1998 {
1999 int result = -1;
2000
2001 START_PROFILE(syscall_unlink);
2002
2003 if (smb_fname->stream_name) {
2004 errno = ENOENT;
2005 goto out;
2006 }
2007 result = unlink(smb_fname->base_name);
2008
2009 out:
2010 END_PROFILE(syscall_unlink);
2011 return result;
2012 }
2013
2014 static int vfswrap_chmod(vfs_handle_struct *handle,
2015 const struct smb_filename *smb_fname,
2016 mode_t mode)
2017 {
2018 int result;
2019
2020 START_PROFILE(syscall_chmod);
2021 result = chmod(smb_fname->base_name, mode);
2022 END_PROFILE(syscall_chmod);
2023 return result;
2024 }
2025
2026 static int vfswrap_fchmod(vfs_handle_struct *handle, files_struct *fsp, mode_t mode)
2027 {
2028 int result;
2029
2030 START_PROFILE(syscall_fchmod);
2031 #if defined(HAVE_FCHMOD)
2032 result = fchmod(fsp->fh->fd, mode);
2033 #else
2034 result = -1;
2035 errno = ENOSYS;
2036 #endif
2037
2038 END_PROFILE(syscall_fchmod);
2039 return result;
2040 }
2041
2042 static int vfswrap_chown(vfs_handle_struct *handle,
2043 const struct smb_filename *smb_fname,
2044 uid_t uid,
2045 gid_t gid)
2046 {
2047 int result;
2048
2049 START_PROFILE(syscall_chown);
2050 result = chown(smb_fname->base_name, uid, gid);
2051 END_PROFILE(syscall_chown);
2052 return result;
2053 }
2054
2055 static int vfswrap_fchown(vfs_handle_struct *handle, files_struct *fsp, uid_t uid, gid_t gid)
2056 {
2057 #ifdef HAVE_FCHOWN
2058 int result;
2059
2060 START_PROFILE(syscall_fchown);
2061 result = fchown(fsp->fh->fd, uid, gid);
2062 END_PROFILE(syscall_fchown);
2063 return result;
2064 #else
2065 errno = ENOSYS;
2066 return -1;
2067 #endif
2068 }
2069
2070 static int vfswrap_lchown(vfs_handle_struct *handle,
2071 const struct smb_filename *smb_fname,
2072 uid_t uid,
2073 gid_t gid)
2074 {
2075 int result;
2076
2077 START_PROFILE(syscall_lchown);
2078 result = lchown(smb_fname->base_name, uid, gid);
2079 END_PROFILE(syscall_lchown);
2080 return result;
2081 }
2082
2083 static int vfswrap_chdir(vfs_handle_struct *handle,
2084 const struct smb_filename *smb_fname)
2085 {
2086 int result;
2087
2088 START_PROFILE(syscall_chdir);
2089 result = chdir(smb_fname->base_name);
2090 END_PROFILE(syscall_chdir);
2091 return result;
2092 }
2093
2094 static struct smb_filename *vfswrap_getwd(vfs_handle_struct *handle,
2095 TALLOC_CTX *ctx)
2096 {
2097 char *result;
2098 struct smb_filename *smb_fname = NULL;
2099
2100 START_PROFILE(syscall_getwd);
2101 result = sys_getwd();
2102 END_PROFILE(syscall_getwd);
2103
2104 if (result == NULL) {
2105 return NULL;
2106 }
2107 smb_fname = synthetic_smb_fname(ctx,
2108 result,
2109 NULL,
2110 NULL,
2111 0);
2112 /*
2113 * sys_getwd() *always* returns malloced memory.
2114 * We must free here to avoid leaks:
2115 * BUG:https://bugzilla.samba.org/show_bug.cgi?id=13372
2116 */
2117 SAFE_FREE(result);
2118 return smb_fname;
2119 }
2120
2121 /*********************************************************************
2122 nsec timestamp resolution call. Convert down to whatever the underlying
2123 system will support.
2124 **********************************************************************/
2125
2126 static int vfswrap_ntimes(vfs_handle_struct *handle,
2127 const struct smb_filename *smb_fname,
2128 struct smb_file_time *ft)
2129 {
2130 int result = -1;
2131
2132 START_PROFILE(syscall_ntimes);
2133
2134 if (smb_fname->stream_name) {
2135 errno = ENOENT;
2136 goto out;
2137 }
2138
2139 if (ft != NULL) {
2140 if (null_timespec(ft->atime)) {
2141 ft->atime= smb_fname->st.st_ex_atime;
2142 }
2143
2144 if (null_timespec(ft->mtime)) {
2145 ft->mtime = smb_fname->st.st_ex_mtime;
2146 }
2147
2148 if (!null_timespec(ft->create_time)) {
2149 set_create_timespec_ea(handle->conn,
2150 smb_fname,
2151 ft->create_time);
2152 }
2153
2154 if ((timespec_compare(&ft->atime,
2155 &smb_fname->st.st_ex_atime) == 0) &&
2156 (timespec_compare(&ft->mtime,
2157 &smb_fname->st.st_ex_mtime) == 0)) {
2158 return 0;
2159 }
2160 }
2161
2162 #if defined(HAVE_UTIMENSAT)
2163 if (ft != NULL) {
2164 struct timespec ts[2];
2165 ts[0] = ft->atime;
2166 ts[1] = ft->mtime;
2167 result = utimensat(AT_FDCWD, smb_fname->base_name, ts, 0);
2168 } else {
2169 result = utimensat(AT_FDCWD, smb_fname->base_name, NULL, 0);
2170 }
2171 if (!((result == -1) && (errno == ENOSYS))) {
2172 goto out;
2173 }
2174 #endif
2175 #if defined(HAVE_UTIMES)
2176 if (ft != NULL) {
2177 struct timeval tv[2];
2178 tv[0] = convert_timespec_to_timeval(ft->atime);
2179 tv[1] = convert_timespec_to_timeval(ft->mtime);
2180 result = utimes(smb_fname->base_name, tv);
2181 } else {
2182 result = utimes(smb_fname->base_name, NULL);
2183 }
2184 if (!((result == -1) && (errno == ENOSYS))) {
2185 goto out;
2186 }
2187 #endif
2188 #if defined(HAVE_UTIME)
2189 if (ft != NULL) {
2190 struct utimbuf times;
2191 times.actime = convert_timespec_to_time_t(ft->atime);
2192 times.modtime = convert_timespec_to_time_t(ft->mtime);
2193 result = utime(smb_fname->base_name, &times);
2194 } else {
2195 result = utime(smb_fname->base_name, NULL);
2196 }
2197 if (!((result == -1) && (errno == ENOSYS))) {
2198 goto out;
2199 }
2200 #endif
2201 errno = ENOSYS;
2202 result = -1;
2203
2204 out:
2205 END_PROFILE(syscall_ntimes);
2206 return result;
2207 }
2208
2209 /*********************************************************************
2210 A version of ftruncate that will write the space on disk if strict
2211 allocate is set.
2212 **********************************************************************/
2213
2214 static int strict_allocate_ftruncate(vfs_handle_struct *handle, files_struct *fsp, off_t len)
2215 {
2216 off_t space_to_write;
2217 uint64_t space_avail;
2218 uint64_t bsize,dfree,dsize;
2219 int ret;
2220 NTSTATUS status;
2221 SMB_STRUCT_STAT *pst;
2222
2223 status = vfs_stat_fsp(fsp);
2224 if (!NT_STATUS_IS_OK(status)) {
2225 return -1;
2226 }
2227 pst = &fsp->fsp_name->st;
2228
2229 #ifdef S_ISFIFO
2230 if (S_ISFIFO(pst->st_ex_mode))
2231 return 0;
2232 #endif
2233
2234 if (pst->st_ex_size == len)
2235 return 0;
2236
2237 /* Shrink - just ftruncate. */
2238 if (pst->st_ex_size > len)
2239 return ftruncate(fsp->fh->fd, len);
2240
2241 space_to_write = len - pst->st_ex_size;
2242
2243 /* for allocation try fallocate first. This can fail on some
2244 platforms e.g. when the filesystem doesn't support it and no
2245 emulation is being done by the libc (like on AIX with JFS1). In that
2246 case we do our own emulation. fallocate implementations can
2247 return ENOTSUP or EINVAL in cases like that. */
2248 ret = SMB_VFS_FALLOCATE(fsp, 0, pst->st_ex_size, space_to_write);
2249 if (ret == -1 && errno == ENOSPC) {
2250 return -1;
2251 }
2252 if (ret == 0) {
2253 return 0;
2254 }
2255 DEBUG(10,("strict_allocate_ftruncate: SMB_VFS_FALLOCATE failed with "
2256 "error %d. Falling back to slow manual allocation\n", errno));
2257
2258 /* available disk space is enough or not? */
2259 space_avail =
2260 get_dfree_info(fsp->conn, fsp->fsp_name, &bsize, &dfree, &dsize);
2261 /* space_avail is 1k blocks */
2262 if (space_avail == (uint64_t)-1 ||
2263 ((uint64_t)space_to_write/1024 > space_avail) ) {
2264 errno = ENOSPC;
2265 return -1;
2266 }
2267
2268 /* Write out the real space on disk. */
2269 ret = vfs_slow_fallocate(fsp, pst->st_ex_size, space_to_write);
2270 if (ret != 0) {
2271 return -1;
2272 }
2273
2274 return 0;
2275 }
2276
2277 static int vfswrap_ftruncate(vfs_handle_struct *handle, files_struct *fsp, off_t len)
2278 {
2279 int result = -1;
2280 SMB_STRUCT_STAT *pst;
2281 NTSTATUS status;
2282 char c = 0;
2283
2284 START_PROFILE(syscall_ftruncate);
2285
2286 if (lp_strict_allocate(SNUM(fsp->conn)) && !fsp->is_sparse) {
2287 result = strict_allocate_ftruncate(handle, fsp, len);
2288 END_PROFILE(syscall_ftruncate);
2289 return result;
2290 }
2291
2292 /* we used to just check HAVE_FTRUNCATE_EXTEND and only use
2293 ftruncate if the system supports it. Then I discovered that
2294 you can have some filesystems that support ftruncate
2295 expansion and some that don't! On Linux fat can't do
2296 ftruncate extend but ext2 can. */
2297
2298 result = ftruncate(fsp->fh->fd, len);
2299
2300 /* According to W. R. Stevens advanced UNIX prog. Pure 4.3 BSD cannot
2301 extend a file with ftruncate. Provide alternate implementation
2302 for this */
2303
2304 /* Do an fstat to see if the file is longer than the requested
2305 size in which case the ftruncate above should have
2306 succeeded or shorter, in which case seek to len - 1 and
2307 write 1 byte of zero */
2308 status = vfs_stat_fsp(fsp);
2309 if (!NT_STATUS_IS_OK(status)) {
2310 goto done;
2311 }
2312
2313 /* We need to update the files_struct after successful ftruncate */
2314 if (result == 0) {
2315 goto done;
2316 }
2317
2318 pst = &fsp->fsp_name->st;
2319
2320 #ifdef S_ISFIFO
2321 if (S_ISFIFO(pst->st_ex_mode)) {
2322 result = 0;
2323 goto done;
2324 }
2325 #endif
2326
2327 if (pst->st_ex_size == len) {
2328 result = 0;
2329 goto done;
2330 }
2331
2332 if (pst->st_ex_size > len) {
2333 /* the ftruncate should have worked */
2334 goto done;
2335 }
2336
2337 if (SMB_VFS_PWRITE(fsp, &c, 1, len-1)!=1) {
2338 goto done;
2339 }
2340
2341 result = 0;
2342
2343 done:
2344
2345 END_PROFILE(syscall_ftruncate);
2346 return result;
2347 }
2348
2349 static int vfswrap_fallocate(vfs_handle_struct *handle,
2350 files_struct *fsp,
2351 uint32_t mode,
2352 off_t offset,
2353 off_t len)
2354 {
2355 int result;
2356
2357 START_PROFILE(syscall_fallocate);
2358 if (mode == 0) {
2359 result = sys_posix_fallocate(fsp->fh->fd, offset, len);
2360 /*
2361 * posix_fallocate returns 0 on success, errno on error
2362 * and doesn't set errno. Make it behave like fallocate()
2363 * which returns -1, and sets errno on failure.
2364 */
2365 if (result != 0) {
2366 errno = result;
2367 result = -1;
2368 }
2369 } else {
2370 /* sys_fallocate handles filtering of unsupported mode flags */
2371 result = sys_fallocate(fsp->fh->fd, mode, offset, len);
2372 }
2373 END_PROFILE(syscall_fallocate);
2374 return result;
2375 }
2376
2377 static bool vfswrap_lock(vfs_handle_struct *handle, files_struct *fsp, int op, off_t offset, off_t count, int type)
2378 {
2379 bool result;
2380
2381 START_PROFILE(syscall_fcntl_lock);
2382
2383 if (fsp->use_ofd_locks || !lp_parm_bool(SNUM(fsp->conn),
2384 "smbd",
2385 "force process locks",
2386 false)) {
2387 op = map_process_lock_to_ofd_lock(op, &fsp->use_ofd_locks);
2388 }
2389
2390 result = fcntl_lock(fsp->fh->fd, op, offset, count, type);
2391 END_PROFILE(syscall_fcntl_lock);
2392 return result;
2393 }
2394
2395 static int vfswrap_kernel_flock(vfs_handle_struct *handle, files_struct *fsp,
2396 uint32_t share_mode, uint32_t access_mask)
2397 {
2398 START_PROFILE(syscall_kernel_flock);
2399 kernel_flock(fsp->fh->fd, share_mode, access_mask);
2400 END_PROFILE(syscall_kernel_flock);
2401 return 0;
2402 }
2403
2404 static bool vfswrap_getlock(vfs_handle_struct *handle, files_struct *fsp, off_t *poffset, off_t *pcount, int *ptype, pid_t *ppid)
2405 {
2406 bool result;
2407 int op = F_GETLK;
2408
2409 START_PROFILE(syscall_fcntl_getlock);
2410
2411 if (fsp->use_ofd_locks || !lp_parm_bool(SNUM(fsp->conn),
2412 "smbd",
2413 "force process locks",
2414 false)) {
2415 op = map_process_lock_to_ofd_lock(op, &fsp->use_ofd_locks);
2416 }
2417
2418 result = fcntl_getlock(fsp->fh->fd, op, poffset, pcount, ptype, ppid);
2419 END_PROFILE(syscall_fcntl_getlock);
2420 return result;
2421 }
2422
2423 static int vfswrap_linux_setlease(vfs_handle_struct *handle, files_struct *fsp,
2424 int leasetype)
2425 {
2426 int result = -1;
2427
2428 START_PROFILE(syscall_linux_setlease);
2429
2430 #ifdef HAVE_KERNEL_OPLOCKS_LINUX
2431 result = linux_setlease(fsp->fh->fd, leasetype);
2432 #else
2433 errno = ENOSYS;
2434 #endif
2435 END_PROFILE(syscall_linux_setlease);
2436 return result;
2437 }
2438
2439 static int vfswrap_symlink(vfs_handle_struct *handle,
2440 const char *link_target,
2441 const struct smb_filename *new_smb_fname)
2442 {
2443 int result;
2444
2445 START_PROFILE(syscall_symlink);
2446 result = symlink(link_target, new_smb_fname->base_name);
2447 END_PROFILE(syscall_symlink);
2448 return result;
2449 }
2450
2451 static int vfswrap_readlink(vfs_handle_struct *handle,
2452 const struct smb_filename *smb_fname,
2453 char *buf,
2454 size_t bufsiz)
2455 {
2456 int result;
2457
2458 START_PROFILE(syscall_readlink);
2459 result = readlink(smb_fname->base_name, buf, bufsiz);
2460 END_PROFILE(syscall_readlink);
2461 return result;
2462 }
2463
2464 static int vfswrap_link(vfs_handle_struct *handle,
2465 const struct smb_filename *old_smb_fname,
2466 const struct smb_filename *new_smb_fname)
2467 {
2468 int result;
2469
2470 START_PROFILE(syscall_link);
2471 result = link(old_smb_fname->base_name, new_smb_fname->base_name);
2472 END_PROFILE(syscall_link);
2473 return result;
2474 }
2475
2476 static int vfswrap_mknod(vfs_handle_struct *handle,
2477 const struct smb_filename *smb_fname,
2478 mode_t mode,
2479 SMB_DEV_T dev)
2480 {
2481 int result;
2482
2483 START_PROFILE(syscall_mknod);
2484 result = sys_mknod(smb_fname->base_name, mode, dev);
2485 END_PROFILE(syscall_mknod);
2486 return result;
2487 }
2488
2489 static struct smb_filename *vfswrap_realpath(vfs_handle_struct *handle,
2490 TALLOC_CTX *ctx,
2491 const struct smb_filename *smb_fname)
2492 {
2493 char *result;
2494 struct smb_filename *result_fname = NULL;
2495
2496 START_PROFILE(syscall_realpath);
2497 result = sys_realpath(smb_fname->base_name);
2498 END_PROFILE(syscall_realpath);
2499 if (result) {
2500 result_fname = synthetic_smb_fname(ctx, result, NULL, NULL, 0);
2501 SAFE_FREE(result);
2502 }
2503 return result_fname;
2504 }
2505
2506 static int vfswrap_chflags(vfs_handle_struct *handle,
2507 const struct smb_filename *smb_fname,
2508 unsigned int flags)
2509 {
2510 #ifdef HAVE_CHFLAGS
2511 return chflags(smb_fname->base_name, flags);
2512 #else
2513 errno = ENOSYS;
2514 return -1;
2515 #endif
2516 }
2517
2518 static struct file_id vfswrap_file_id_create(struct vfs_handle_struct *handle,
2519 const SMB_STRUCT_STAT *sbuf)
2520 {
2521 struct file_id key;
2522
2523 /* the ZERO_STRUCT ensures padding doesn't break using the key as a
2524 * blob */
2525 ZERO_STRUCT(key);
2526
2527 key.devid = sbuf->st_ex_dev;
2528 key.inode = sbuf->st_ex_ino;
2529 /* key.extid is unused by default. */
2530
2531 return key;
2532 }
2533
2534 static NTSTATUS vfswrap_streaminfo(vfs_handle_struct *handle,
2535 struct files_struct *fsp,
2536 const struct smb_filename *smb_fname,
2537 TALLOC_CTX *mem_ctx,
2538 unsigned int *pnum_streams,
2539 struct stream_struct **pstreams)
2540 {
2541 SMB_STRUCT_STAT sbuf;
2542 struct stream_struct *tmp_streams = NULL;
2543 int ret;
2544
2545 if ((fsp != NULL) && (fsp->is_directory)) {
2546 /*
2547 * No default streams on directories
2548 */
2549 goto done;
2550 }
2551
2552 if ((fsp != NULL) && (fsp->fh->fd != -1)) {
2553 ret = SMB_VFS_FSTAT(fsp, &sbuf);
2554 }
2555 else {
2556 struct smb_filename smb_fname_cp;
2557
2558 ZERO_STRUCT(smb_fname_cp);
2559 smb_fname_cp.base_name = discard_const_p(char,
2560 smb_fname->base_name);
2561 smb_fname_cp.flags = smb_fname->flags;
2562
2563 if (smb_fname_cp.flags & SMB_FILENAME_POSIX_PATH) {
2564 ret = SMB_VFS_LSTAT(handle->conn, &smb_fname_cp);
2565 } else {
2566 ret = SMB_VFS_STAT(handle->conn, &smb_fname_cp);
2567 }
2568 sbuf = smb_fname_cp.st;
2569 }
2570
2571 if (ret == -1) {
2572 return map_nt_error_from_unix(errno);
2573 }
2574
2575 if (S_ISDIR(sbuf.st_ex_mode)) {
2576 goto done;
2577 }
2578
2579 tmp_streams = talloc_realloc(mem_ctx, *pstreams, struct stream_struct,
2580 (*pnum_streams) + 1);
2581 if (tmp_streams == NULL) {
2582 return NT_STATUS_NO_MEMORY;
2583 }
2584 tmp_streams[*pnum_streams].name = talloc_strdup(tmp_streams, "::$DATA");
2585 if (tmp_streams[*pnum_streams].name == NULL) {
2586 return NT_STATUS_NO_MEMORY;
2587 }
2588 tmp_streams[*pnum_streams].size = sbuf.st_ex_size;
2589 tmp_streams[*pnum_streams].alloc_size = SMB_VFS_GET_ALLOC_SIZE(handle->conn, fsp, &sbuf);
2590
2591 *pnum_streams += 1;
2592 *pstreams = tmp_streams;
2593 done:
2594 return NT_STATUS_OK;
2595 }
2596
2597 static int vfswrap_get_real_filename(struct vfs_handle_struct *handle,
2598 const char *path,
2599 const char *name,
2600 TALLOC_CTX *mem_ctx,
2601 char **found_name)
2602 {
2603 /*
2604 * Don't fall back to get_real_filename so callers can differentiate
2605 * between a full directory scan and an actual case-insensitive stat.
2606 */
2607 errno = EOPNOTSUPP;
2608 return -1;
2609 }
2610
2611 static const char *vfswrap_connectpath(struct vfs_handle_struct *handle,
2612 const struct smb_filename *smb_fname)
2613 {
2614 return handle->conn->connectpath;
2615 }
2616
2617 static NTSTATUS vfswrap_brl_lock_windows(struct vfs_handle_struct *handle,
2618 struct byte_range_lock *br_lck,
2619 struct lock_struct *plock,
2620 bool blocking_lock)
2621 {
2622 SMB_ASSERT(plock->lock_flav == WINDOWS_LOCK);
2623
2624 /* Note: blr is not used in the default implementation. */
2625 return brl_lock_windows_default(br_lck, plock, blocking_lock);
2626 }
2627
2628 static bool vfswrap_brl_unlock_windows(struct vfs_handle_struct *handle,
2629 struct messaging_context *msg_ctx,
2630 struct byte_range_lock *br_lck,
2631 const struct lock_struct *plock)
2632 {
2633 SMB_ASSERT(plock->lock_flav == WINDOWS_LOCK);
2634
2635 return brl_unlock_windows_default(msg_ctx, br_lck, plock);
2636 }
2637
2638 static bool vfswrap_brl_cancel_windows(struct vfs_handle_struct *handle,
2639 struct byte_range_lock *br_lck,
2640 struct lock_struct *plock)
2641 {
2642 SMB_ASSERT(plock->lock_flav == WINDOWS_LOCK);
2643
2644 /* Note: blr is not used in the default implementation. */
2645 return brl_lock_cancel_default(br_lck, plock);
2646 }
2647
2648 static bool vfswrap_strict_lock_check(struct vfs_handle_struct *handle,
2649 files_struct *fsp,
2650 struct lock_struct *plock)
2651 {
2652 SMB_ASSERT(plock->lock_type == READ_LOCK ||
2653 plock->lock_type == WRITE_LOCK);
2654
2655 return strict_lock_check_default(fsp, plock);
2656 }
2657
2658 /* NT ACL operations. */
2659
2660 static NTSTATUS vfswrap_fget_nt_acl(vfs_handle_struct *handle,
2661 files_struct *fsp,
2662 uint32_t security_info,
2663 TALLOC_CTX *mem_ctx,
2664 struct security_descriptor **ppdesc)
2665 {
2666 NTSTATUS result;
2667
2668 START_PROFILE(fget_nt_acl);
2669 result = posix_fget_nt_acl(fsp, security_info,
2670 mem_ctx, ppdesc);
2671 END_PROFILE(fget_nt_acl);
2672 return result;
2673 }
2674
2675 static NTSTATUS vfswrap_get_nt_acl(vfs_handle_struct *handle,
2676 const struct smb_filename *smb_fname,
2677 uint32_t security_info,
2678 TALLOC_CTX *mem_ctx,
2679 struct security_descriptor **ppdesc)
2680 {
2681 NTSTATUS result;
2682
2683 START_PROFILE(get_nt_acl);
2684 result = posix_get_nt_acl(handle->conn,
2685 smb_fname,
2686 security_info,
2687 mem_ctx,
2688 ppdesc);
2689 END_PROFILE(get_nt_acl);
2690 return result;
2691 }
2692
2693 static NTSTATUS vfswrap_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp, uint32_t security_info_sent, const struct security_descriptor *psd)
2694 {
2695 NTSTATUS result;
2696
2697 START_PROFILE(fset_nt_acl);
2698 result = set_nt_acl(fsp, security_info_sent, psd);
2699 END_PROFILE(fset_nt_acl);
2700 return result;
2701 }
2702
2703 static NTSTATUS vfswrap_audit_file(struct vfs_handle_struct *handle,
2704 struct smb_filename *file,
2705 struct security_acl *sacl,
2706 uint32_t access_requested,
2707 uint32_t access_denied)
2708 {
2709 return NT_STATUS_OK; /* Nothing to do here ... */
2710 }
2711
2712 static SMB_ACL_T vfswrap_sys_acl_get_file(vfs_handle_struct *handle,
2713 const struct smb_filename *smb_fname,
2714 SMB_ACL_TYPE_T type,
2715 TALLOC_CTX *mem_ctx)
2716 {
2717 return sys_acl_get_file(handle, smb_fname, type, mem_ctx);
2718 }
2719
2720 static SMB_ACL_T vfswrap_sys_acl_get_fd(vfs_handle_struct *handle,
2721 files_struct *fsp,
2722 TALLOC_CTX *mem_ctx)
2723 {
2724 return sys_acl_get_fd(handle, fsp, mem_ctx);
2725 }
2726
2727 static int vfswrap_sys_acl_set_file(vfs_handle_struct *handle,
2728 const struct smb_filename *smb_fname,
2729 SMB_ACL_TYPE_T acltype,
2730 SMB_ACL_T theacl)
2731 {
2732 return sys_acl_set_file(handle, smb_fname, acltype, theacl);
2733 }
2734
2735 static int vfswrap_sys_acl_set_fd(vfs_handle_struct *handle, files_struct *fsp, SMB_ACL_T theacl)
2736 {
2737 return sys_acl_set_fd(handle, fsp, theacl);
2738 }
2739
2740 static int vfswrap_sys_acl_delete_def_file(vfs_handle_struct *handle,
2741 const struct smb_filename *smb_fname)
2742 {
2743 return sys_acl_delete_def_file(handle, smb_fname);
2744 }
2745
2746 /****************************************************************
2747 Extended attribute operations.
2748 *****************************************************************/
2749
2750 static ssize_t vfswrap_getxattr(struct vfs_handle_struct *handle,
2751 const struct smb_filename *smb_fname,
2752 const char *name,
2753 void *value,
2754 size_t size)
2755 {
2756 return getxattr(smb_fname->base_name, name, value, size);
2757 }
2758
2759 static ssize_t vfswrap_fgetxattr(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, void *value, size_t size)
2760 {
2761 return fgetxattr(fsp->fh->fd, name, value, size);
2762 }
2763
2764 static ssize_t vfswrap_listxattr(struct vfs_handle_struct *handle,
2765 const struct smb_filename *smb_fname,
2766 char *list,
2767 size_t size)
2768 {
2769 return listxattr(smb_fname->base_name, list, size);
2770 }
2771
2772 static ssize_t vfswrap_flistxattr(struct vfs_handle_struct *handle, struct files_struct *fsp, char *list, size_t size)
2773 {
2774 return flistxattr(fsp->fh->fd, list, size);
2775 }
2776
2777 static int vfswrap_removexattr(struct vfs_handle_struct *handle,
2778 const struct smb_filename *smb_fname,
2779 const char *name)
2780 {
2781 return removexattr(smb_fname->base_name, name);
2782 }
2783
2784 static int vfswrap_fremovexattr(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name)
2785 {
2786 return fremovexattr(fsp->fh->fd, name);
2787 }
2788
2789 static int vfswrap_setxattr(struct vfs_handle_struct *handle,
2790 const struct smb_filename *smb_fname,
2791 const char *name,
2792 const void *value,
2793 size_t size,
2794 int flags)
2795 {
2796 return setxattr(smb_fname->base_name, name, value, size, flags);
2797 }
2798
2799 static int vfswrap_fsetxattr(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, const void *value, size_t size, int flags)
2800 {
2801 return fsetxattr(fsp->fh->fd, name, value, size, flags);
2802 }
2803
2804 static bool vfswrap_aio_force(struct vfs_handle_struct *handle, struct files_struct *fsp)
2805 {
2806 return false;
2807 }
2808
2809 static bool vfswrap_is_offline(struct vfs_handle_struct *handle,
2810 const struct smb_filename *fname,
2811 SMB_STRUCT_STAT *sbuf)
2812 {
2813 NTSTATUS status;
2814 char *path;
2815 bool offline = false;
2816
2817 if (ISDOT(fname->base_name) || ISDOTDOT(fname->base_name)) {
2818 return false;
2819 }
2820
2821 if (!lp_dmapi_support(SNUM(handle->conn)) || !dmapi_have_session()) {
2822 #if defined(ENOTSUP)
2823 errno = ENOTSUP;
2824 #endif
2825 return false;
2826 }
2827
2828 status = get_full_smb_filename(talloc_tos(), fname, &path);
2829 if (!NT_STATUS_IS_OK(status)) {
2830 errno = map_errno_from_nt_status(status);
2831 return false;
2832 }
2833
2834 offline = (dmapi_file_flags(path) & FILE_ATTRIBUTE_OFFLINE) != 0;
2835
2836 TALLOC_FREE(path);
2837
2838 return offline;
2839 }
2840
2841 static NTSTATUS vfswrap_durable_cookie(struct vfs_handle_struct *handle,
2842 struct files_struct *fsp,
2843 TALLOC_CTX *mem_ctx,
2844 DATA_BLOB *cookie)
2845 {
2846 return vfs_default_durable_cookie(fsp, mem_ctx, cookie);
2847 }
2848
2849 static NTSTATUS vfswrap_durable_disconnect(struct vfs_handle_struct *handle,
2850 struct files_struct *fsp,
2851 const DATA_BLOB old_cookie,
2852 TALLOC_CTX *mem_ctx,
2853 DATA_BLOB *new_cookie)
2854 {
2855 return vfs_default_durable_disconnect(fsp, old_cookie, mem_ctx,
2856 new_cookie);
2857 }
2858
2859 static NTSTATUS vfswrap_durable_reconnect(struct vfs_handle_struct *handle,
2860 struct smb_request *smb1req,
2861 struct smbXsrv_open *op,
2862 const DATA_BLOB old_cookie,
2863 TALLOC_CTX *mem_ctx,
2864 struct files_struct **fsp,
2865 DATA_BLOB *new_cookie)
2866 {
2867 return vfs_default_durable_reconnect(handle->conn, smb1req, op,
2868 old_cookie, mem_ctx,
2869 fsp, new_cookie);
2870 }
2871
2872 static struct vfs_fn_pointers vfs_default_fns = {
2873 /* Disk operations */
2874
2875 .connect_fn = vfswrap_connect,
2876 .disconnect_fn = vfswrap_disconnect,
2877 .disk_free_fn = vfswrap_disk_free,
2878 .get_quota_fn = vfswrap_get_quota,
2879 .set_quota_fn = vfswrap_set_quota,
2880 .get_shadow_copy_data_fn = vfswrap_get_shadow_copy_data,
2881 .statvfs_fn = vfswrap_statvfs,
2882 .fs_capabilities_fn = vfswrap_fs_capabilities,
2883 .get_dfs_referrals_fn = vfswrap_get_dfs_referrals,
2884 .snap_check_path_fn = vfswrap_snap_check_path,
2885 .snap_create_fn = vfswrap_snap_create,
2886 .snap_delete_fn = vfswrap_snap_delete,
2887
2888 /* Directory operations */
2889
2890 .opendir_fn = vfswrap_opendir,
2891 .fdopendir_fn = vfswrap_fdopendir,
2892 .readdir_fn = vfswrap_readdir,
2893 .readdir_attr_fn = vfswrap_readdir_attr,
2894 .seekdir_fn = vfswrap_seekdir,
2895 .telldir_fn = vfswrap_telldir,
2896 .rewind_dir_fn = vfswrap_rewinddir,
2897 .mkdir_fn = vfswrap_mkdir,
2898 .rmdir_fn = vfswrap_rmdir,
2899 .closedir_fn = vfswrap_closedir,
2900
2901 /* File operations */
2902
2903 .open_fn = vfswrap_open,
2904 .create_file_fn = vfswrap_create_file,
2905 .close_fn = vfswrap_close,
2906 .pread_fn = vfswrap_pread,
2907 .pread_send_fn = vfswrap_pread_send,
2908 .pread_recv_fn = vfswrap_pread_recv,
2909 .pwrite_fn = vfswrap_pwrite,
2910 .pwrite_send_fn = vfswrap_pwrite_send,
2911 .pwrite_recv_fn = vfswrap_pwrite_recv,
2912 .lseek_fn = vfswrap_lseek,
2913 .sendfile_fn = vfswrap_sendfile,
2914 .recvfile_fn = vfswrap_recvfile,
2915 .rename_fn = vfswrap_rename,
2916 .fsync_send_fn = vfswrap_fsync_send,
2917 .fsync_recv_fn = vfswrap_fsync_recv,
2918 .stat_fn = vfswrap_stat,
2919 .fstat_fn = vfswrap_fstat,
2920 .lstat_fn = vfswrap_lstat,
2921 .get_alloc_size_fn = vfswrap_get_alloc_size,
2922 .unlink_fn = vfswrap_unlink,
2923 .chmod_fn = vfswrap_chmod,
2924 .fchmod_fn = vfswrap_fchmod,
2925 .chown_fn = vfswrap_chown,
2926 .fchown_fn = vfswrap_fchown,
2927 .lchown_fn = vfswrap_lchown,
2928 .chdir_fn = vfswrap_chdir,
2929 .getwd_fn = vfswrap_getwd,
2930 .ntimes_fn = vfswrap_ntimes,
2931 .ftruncate_fn = vfswrap_ftruncate,
2932 .fallocate_fn = vfswrap_fallocate,
2933 .lock_fn = vfswrap_lock,
2934 .kernel_flock_fn = vfswrap_kernel_flock,
2935 .linux_setlease_fn = vfswrap_linux_setlease,
2936 .getlock_fn = vfswrap_getlock,
2937 .symlink_fn = vfswrap_symlink,
2938 .readlink_fn = vfswrap_readlink,
2939 .link_fn = vfswrap_link,
2940 .mknod_fn = vfswrap_mknod,
2941 .realpath_fn = vfswrap_realpath,
2942 .chflags_fn = vfswrap_chflags,
2943 .file_id_create_fn = vfswrap_file_id_create,
2944 .streaminfo_fn = vfswrap_streaminfo,
2945 .get_real_filename_fn = vfswrap_get_real_filename,
2946 .connectpath_fn = vfswrap_connectpath,
2947 .brl_lock_windows_fn = vfswrap_brl_lock_windows,
2948 .brl_unlock_windows_fn = vfswrap_brl_unlock_windows,
2949 .brl_cancel_windows_fn = vfswrap_brl_cancel_windows,
2950 .strict_lock_check_fn = vfswrap_strict_lock_check,
2951 .translate_name_fn = vfswrap_translate_name,
2952 .fsctl_fn = vfswrap_fsctl,
2953 .set_dos_attributes_fn = vfswrap_set_dos_attributes,
2954 .fset_dos_attributes_fn = vfswrap_fset_dos_attributes,
2955 .get_dos_attributes_fn = vfswrap_get_dos_attributes,
2956 .fget_dos_attributes_fn = vfswrap_fget_dos_attributes,
2957 .offload_read_send_fn = vfswrap_offload_read_send,
2958 .offload_read_recv_fn = vfswrap_offload_read_recv,
2959 .offload_write_send_fn = vfswrap_offload_write_send,
2960 .offload_write_recv_fn = vfswrap_offload_write_recv,
2961 .get_compression_fn = vfswrap_get_compression,
2962 .set_compression_fn = vfswrap_set_compression,
2963
2964 /* NT ACL operations. */
2965
2966 .fget_nt_acl_fn = vfswrap_fget_nt_acl,
2967 .get_nt_acl_fn = vfswrap_get_nt_acl,
2968 .fset_nt_acl_fn = vfswrap_fset_nt_acl,
2969 .audit_file_fn = vfswrap_audit_file,
2970
2971 /* POSIX ACL operations. */
2972
2973 .sys_acl_get_file_fn = vfswrap_sys_acl_get_file,
2974 .sys_acl_get_fd_fn = vfswrap_sys_acl_get_fd,
2975 .sys_acl_blob_get_file_fn = posix_sys_acl_blob_get_file,
2976 .sys_acl_blob_get_fd_fn = posix_sys_acl_blob_get_fd,
2977 .sys_acl_set_file_fn = vfswrap_sys_acl_set_file,
2978 .sys_acl_set_fd_fn = vfswrap_sys_acl_set_fd,
2979 .sys_acl_delete_def_file_fn = vfswrap_sys_acl_delete_def_file,
2980
2981 /* EA operations. */
2982 .getxattr_fn = vfswrap_getxattr,
2983 .fgetxattr_fn = vfswrap_fgetxattr,
2984 .listxattr_fn = vfswrap_listxattr,
2985 .flistxattr_fn = vfswrap_flistxattr,
2986 .removexattr_fn = vfswrap_removexattr,
2987 .fremovexattr_fn = vfswrap_fremovexattr,
2988 .setxattr_fn = vfswrap_setxattr,
2989 .fsetxattr_fn = vfswrap_fsetxattr,
2990
2991 /* aio operations */
2992 .aio_force_fn = vfswrap_aio_force,
2993
2994 /* durable handle operations */
2995 .durable_cookie_fn = vfswrap_durable_cookie,
2996 .durable_disconnect_fn = vfswrap_durable_disconnect,
2997 .durable_reconnect_fn = vfswrap_durable_reconnect,
2998 };
2999
3000 static_decl_vfs;
3001 NTSTATUS vfs_default_init(TALLOC_CTX *ctx)
3002 {
3003 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION,
3004 DEFAULT_VFS_MODULE_NAME, &vfs_default_fns);
3005 }
3006
3007
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