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Ensure vfs_chown_fsp() is safe against races.
[Samba.git] / source3 / smbd / vfs.c
blob0438f7934edd35cf326d3815fac3e5aef573731d
1 /*
2 Unix SMB/Netbios implementation.
3 Version 1.9.
4 VFS initialisation and support functions
5 Copyright (C) Tim Potter 1999
6 Copyright (C) Alexander Bokovoy 2002
7 Copyright (C) James Peach 2006
8 Copyright (C) Volker Lendecke 2009
9
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
14
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>.
22
23 This work was sponsored by Optifacio Software Services, Inc.
24 */
25
26 #include "includes.h"
27 #include "system/filesys.h"
28 #include "smbd/smbd.h"
29 #include "smbd/globals.h"
30 #include "memcache.h"
31 #include "transfer_file.h"
32 #include "ntioctl.h"
33
34 #undef DBGC_CLASS
35 #define DBGC_CLASS DBGC_VFS
36
37 static_decl_vfs;
38
39 struct vfs_init_function_entry {
40 char *name;
41 struct vfs_init_function_entry *prev, *next;
42 const struct vfs_fn_pointers *fns;
43 };
44
45 /****************************************************************************
46 maintain the list of available backends
47 ****************************************************************************/
48
49 static struct vfs_init_function_entry *vfs_find_backend_entry(const char *name)
50 {
51 struct vfs_init_function_entry *entry = backends;
52
53 DEBUG(10, ("vfs_find_backend_entry called for %s\n", name));
54
55 while(entry) {
56 if (strcmp(entry->name, name)==0) return entry;
57 entry = entry->next;
58 }
59
60 return NULL;
61 }
62
63 NTSTATUS smb_register_vfs(int version, const char *name,
64 const struct vfs_fn_pointers *fns)
65 {
66 struct vfs_init_function_entry *entry = backends;
67
68 if ((version != SMB_VFS_INTERFACE_VERSION)) {
69 DEBUG(0, ("Failed to register vfs module.\n"
70 "The module was compiled against SMB_VFS_INTERFACE_VERSION %d,\n"
71 "current SMB_VFS_INTERFACE_VERSION is %d.\n"
72 "Please recompile against the current Samba Version!\n",
73 version, SMB_VFS_INTERFACE_VERSION));
74 return NT_STATUS_OBJECT_TYPE_MISMATCH;
75 }
76
77 if (!name || !name[0]) {
78 DEBUG(0,("smb_register_vfs() called with NULL pointer or empty name!\n"));
79 return NT_STATUS_INVALID_PARAMETER;
80 }
81
82 if (vfs_find_backend_entry(name)) {
83 DEBUG(0,("VFS module %s already loaded!\n", name));
84 return NT_STATUS_OBJECT_NAME_COLLISION;
85 }
86
87 entry = SMB_XMALLOC_P(struct vfs_init_function_entry);
88 entry->name = smb_xstrdup(name);
89 entry->fns = fns;
90
91 DLIST_ADD(backends, entry);
92 DEBUG(5, ("Successfully added vfs backend '%s'\n", name));
93 return NT_STATUS_OK;
94 }
95
96 /****************************************************************************
97 initialise default vfs hooks
98 ****************************************************************************/
99
100 static void vfs_init_default(connection_struct *conn)
101 {
102 DEBUG(3, ("Initialising default vfs hooks\n"));
103 vfs_init_custom(conn, DEFAULT_VFS_MODULE_NAME);
104 }
105
106 /****************************************************************************
107 initialise custom vfs hooks
108 ****************************************************************************/
109
110 bool vfs_init_custom(connection_struct *conn, const char *vfs_object)
111 {
112 char *module_path = NULL;
113 char *module_name = NULL;
114 char *module_param = NULL, *p;
115 vfs_handle_struct *handle;
116 const struct vfs_init_function_entry *entry;
117
118 if (!conn||!vfs_object||!vfs_object[0]) {
119 DEBUG(0, ("vfs_init_custom() called with NULL pointer or "
120 "empty vfs_object!\n"));
121 return False;
122 }
123
124 if(!backends) {
125 static_init_vfs;
126 }
127
128 DEBUG(3, ("Initialising custom vfs hooks from [%s]\n", vfs_object));
129
130 module_path = smb_xstrdup(vfs_object);
131
132 p = strchr_m(module_path, ':');
133
134 if (p) {
135 *p = 0;
136 module_param = p+1;
137 trim_char(module_param, ' ', ' ');
138 }
139
140 trim_char(module_path, ' ', ' ');
141
142 module_name = smb_xstrdup(module_path);
143
144 if ((module_name[0] == '/') &&
145 (strcmp(module_path, DEFAULT_VFS_MODULE_NAME) != 0)) {
146
147 /*
148 * Extract the module name from the path. Just use the base
149 * name of the last path component.
150 */
151
152 SAFE_FREE(module_name);
153 module_name = smb_xstrdup(strrchr_m(module_path, '/')+1);
154
155 p = strchr_m(module_name, '.');
156
157 if (p != NULL) {
158 *p = '\0';
159 }
160 }
161
162 /* First, try to load the module with the new module system */
163 entry = vfs_find_backend_entry(module_name);
164 if (!entry) {
165 NTSTATUS status;
166
167 DEBUG(5, ("vfs module [%s] not loaded - trying to load...\n",
168 vfs_object));
169
170 status = smb_probe_module("vfs", module_path);
171 if (!NT_STATUS_IS_OK(status)) {
172 DEBUG(0, ("error probing vfs module '%s': %s\n",
173 module_path, nt_errstr(status)));
174 goto fail;
175 }
176
177 entry = vfs_find_backend_entry(module_name);
178 if (!entry) {
179 DEBUG(0,("Can't find a vfs module [%s]\n",vfs_object));
180 goto fail;
181 }
182 }
183
184 DEBUGADD(5,("Successfully loaded vfs module [%s] with the new modules system\n", vfs_object));
185
186 handle = TALLOC_ZERO_P(conn, vfs_handle_struct);
187 if (!handle) {
188 DEBUG(0,("TALLOC_ZERO() failed!\n"));
189 goto fail;
190 }
191 handle->conn = conn;
192 handle->fns = entry->fns;
193 if (module_param) {
194 handle->param = talloc_strdup(conn, module_param);
195 }
196 DLIST_ADD(conn->vfs_handles, handle);
197
198 SAFE_FREE(module_path);
199 SAFE_FREE(module_name);
200 return True;
201
202 fail:
203 SAFE_FREE(module_path);
204 SAFE_FREE(module_name);
205 return False;
206 }
207
208 /*****************************************************************
209 Allow VFS modules to extend files_struct with VFS-specific state.
210 This will be ok for small numbers of extensions, but might need to
211 be refactored if it becomes more widely used.
212 ******************************************************************/
213
214 #define EXT_DATA_AREA(e) ((uint8 *)(e) + sizeof(struct vfs_fsp_data))
215
216 void *vfs_add_fsp_extension_notype(vfs_handle_struct *handle,
217 files_struct *fsp, size_t ext_size,
218 void (*destroy_fn)(void *p_data))
219 {
220 struct vfs_fsp_data *ext;
221 void * ext_data;
222
223 /* Prevent VFS modules adding multiple extensions. */
224 if ((ext_data = vfs_fetch_fsp_extension(handle, fsp))) {
225 return ext_data;
226 }
227
228 ext = (struct vfs_fsp_data *)TALLOC_ZERO(
229 handle->conn, sizeof(struct vfs_fsp_data) + ext_size);
230 if (ext == NULL) {
231 return NULL;
232 }
233
234 ext->owner = handle;
235 ext->next = fsp->vfs_extension;
236 ext->destroy = destroy_fn;
237 fsp->vfs_extension = ext;
238 return EXT_DATA_AREA(ext);
239 }
240
241 void vfs_remove_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
242 {
243 struct vfs_fsp_data *curr;
244 struct vfs_fsp_data *prev;
245
246 for (curr = fsp->vfs_extension, prev = NULL;
247 curr;
248 prev = curr, curr = curr->next) {
249 if (curr->owner == handle) {
250 if (prev) {
251 prev->next = curr->next;
252 } else {
253 fsp->vfs_extension = curr->next;
254 }
255 if (curr->destroy) {
256 curr->destroy(EXT_DATA_AREA(curr));
257 }
258 TALLOC_FREE(curr);
259 return;
260 }
261 }
262 }
263
264 void *vfs_memctx_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
265 {
266 struct vfs_fsp_data *head;
267
268 for (head = fsp->vfs_extension; head; head = head->next) {
269 if (head->owner == handle) {
270 return head;
271 }
272 }
273
274 return NULL;
275 }
276
277 void *vfs_fetch_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
278 {
279 struct vfs_fsp_data *head;
280
281 head = (struct vfs_fsp_data *)vfs_memctx_fsp_extension(handle, fsp);
282 if (head != NULL) {
283 return EXT_DATA_AREA(head);
284 }
285
286 return NULL;
287 }
288
289 #undef EXT_DATA_AREA
290
291 /*****************************************************************
292 Generic VFS init.
293 ******************************************************************/
294
295 bool smbd_vfs_init(connection_struct *conn)
296 {
297 const char **vfs_objects;
298 unsigned int i = 0;
299 int j = 0;
300
301 /* Normal share - initialise with disk access functions */
302 vfs_init_default(conn);
303 vfs_objects = lp_vfs_objects(SNUM(conn));
304
305 /* Override VFS functions if 'vfs object' was not specified*/
306 if (!vfs_objects || !vfs_objects[0])
307 return True;
308
309 for (i=0; vfs_objects[i] ;) {
310 i++;
311 }
312
313 for (j=i-1; j >= 0; j--) {
314 if (!vfs_init_custom(conn, vfs_objects[j])) {
315 DEBUG(0, ("smbd_vfs_init: vfs_init_custom failed for %s\n", vfs_objects[j]));
316 return False;
317 }
318 }
319 return True;
320 }
321
322 /*******************************************************************
323 Check if a file exists in the vfs.
324 ********************************************************************/
325
326 NTSTATUS vfs_file_exist(connection_struct *conn, struct smb_filename *smb_fname)
327 {
328 /* Only return OK if stat was successful and S_ISREG */
329 if ((SMB_VFS_STAT(conn, smb_fname) != -1) &&
330 S_ISREG(smb_fname->st.st_ex_mode)) {
331 return NT_STATUS_OK;
332 }
333
334 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
335 }
336
337 /****************************************************************************
338 Read data from fsp on the vfs. (note: EINTR re-read differs from vfs_write_data)
339 ****************************************************************************/
340
341 ssize_t vfs_read_data(files_struct *fsp, char *buf, size_t byte_count)
342 {
343 size_t total=0;
344
345 while (total < byte_count)
346 {
347 ssize_t ret = SMB_VFS_READ(fsp, buf + total,
348 byte_count - total);
349
350 if (ret == 0) return total;
351 if (ret == -1) {
352 if (errno == EINTR)
353 continue;
354 else
355 return -1;
356 }
357 total += ret;
358 }
359 return (ssize_t)total;
360 }
361
362 ssize_t vfs_pread_data(files_struct *fsp, char *buf,
363 size_t byte_count, SMB_OFF_T offset)
364 {
365 size_t total=0;
366
367 while (total < byte_count)
368 {
369 ssize_t ret = SMB_VFS_PREAD(fsp, buf + total,
370 byte_count - total, offset + total);
371
372 if (ret == 0) return total;
373 if (ret == -1) {
374 if (errno == EINTR)
375 continue;
376 else
377 return -1;
378 }
379 total += ret;
380 }
381 return (ssize_t)total;
382 }
383
384 /****************************************************************************
385 Write data to a fd on the vfs.
386 ****************************************************************************/
387
388 ssize_t vfs_write_data(struct smb_request *req,
389 files_struct *fsp,
390 const char *buffer,
391 size_t N)
392 {
393 size_t total=0;
394 ssize_t ret;
395
396 if (req && req->unread_bytes) {
397 SMB_ASSERT(req->unread_bytes == N);
398 /* VFS_RECVFILE must drain the socket
399 * before returning. */
400 req->unread_bytes = 0;
401 return SMB_VFS_RECVFILE(req->sconn->sock,
402 fsp,
403 (SMB_OFF_T)-1,
404 N);
405 }
406
407 while (total < N) {
408 ret = SMB_VFS_WRITE(fsp, buffer + total, N - total);
409
410 if (ret == -1)
411 return -1;
412 if (ret == 0)
413 return total;
414
415 total += ret;
416 }
417 return (ssize_t)total;
418 }
419
420 ssize_t vfs_pwrite_data(struct smb_request *req,
421 files_struct *fsp,
422 const char *buffer,
423 size_t N,
424 SMB_OFF_T offset)
425 {
426 size_t total=0;
427 ssize_t ret;
428
429 if (req && req->unread_bytes) {
430 SMB_ASSERT(req->unread_bytes == N);
431 /* VFS_RECVFILE must drain the socket
432 * before returning. */
433 req->unread_bytes = 0;
434 return SMB_VFS_RECVFILE(req->sconn->sock,
435 fsp,
436 offset,
437 N);
438 }
439
440 while (total < N) {
441 ret = SMB_VFS_PWRITE(fsp, buffer + total, N - total,
442 offset + total);
443
444 if (ret == -1)
445 return -1;
446 if (ret == 0)
447 return total;
448
449 total += ret;
450 }
451 return (ssize_t)total;
452 }
453 /****************************************************************************
454 An allocate file space call using the vfs interface.
455 Allocates space for a file from a filedescriptor.
456 Returns 0 on success, -1 on failure.
457 ****************************************************************************/
458
459 int vfs_allocate_file_space(files_struct *fsp, uint64_t len)
460 {
461 int ret;
462 connection_struct *conn = fsp->conn;
463 uint64_t space_avail;
464 uint64_t bsize,dfree,dsize;
465 NTSTATUS status;
466
467 /*
468 * Actually try and commit the space on disk....
469 */
470
471 DEBUG(10,("vfs_allocate_file_space: file %s, len %.0f\n",
472 fsp_str_dbg(fsp), (double)len));
473
474 if (((SMB_OFF_T)len) < 0) {
475 DEBUG(0,("vfs_allocate_file_space: %s negative len "
476 "requested.\n", fsp_str_dbg(fsp)));
477 errno = EINVAL;
478 return -1;
479 }
480
481 status = vfs_stat_fsp(fsp);
482 if (!NT_STATUS_IS_OK(status)) {
483 return -1;
484 }
485
486 if (len == (uint64_t)fsp->fsp_name->st.st_ex_size)
487 return 0;
488
489 if (len < (uint64_t)fsp->fsp_name->st.st_ex_size) {
490 /* Shrink - use ftruncate. */
491
492 DEBUG(10,("vfs_allocate_file_space: file %s, shrink. Current "
493 "size %.0f\n", fsp_str_dbg(fsp),
494 (double)fsp->fsp_name->st.st_ex_size));
495
496 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_ALLOC_SHRINK);
497
498 flush_write_cache(fsp, SIZECHANGE_FLUSH);
499 if ((ret = SMB_VFS_FTRUNCATE(fsp, (SMB_OFF_T)len)) != -1) {
500 set_filelen_write_cache(fsp, len);
501 }
502
503 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_ALLOC_SHRINK);
504
505 return ret;
506 }
507
508 if (!lp_strict_allocate(SNUM(fsp->conn)))
509 return 0;
510
511 /* Grow - we need to test if we have enough space. */
512
513 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_ALLOC_GROW);
514
515 /* See if we have a syscall that will allocate beyond end-of-file
516 without changing EOF. */
517 ret = SMB_VFS_FALLOCATE(fsp, VFS_FALLOCATE_KEEP_SIZE, 0, len);
518
519 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_ALLOC_GROW);
520
521 if (ret == 0) {
522 /* We changed the allocation size on disk, but not
523 EOF - exactly as required. We're done ! */
524 return 0;
525 }
526
527 len -= fsp->fsp_name->st.st_ex_size;
528 len /= 1024; /* Len is now number of 1k blocks needed. */
529 space_avail = get_dfree_info(conn, fsp->fsp_name->base_name, false,
530 &bsize, &dfree, &dsize);
531 if (space_avail == (uint64_t)-1) {
532 return -1;
533 }
534
535 DEBUG(10,("vfs_allocate_file_space: file %s, grow. Current size %.0f, "
536 "needed blocks = %.0f, space avail = %.0f\n",
537 fsp_str_dbg(fsp), (double)fsp->fsp_name->st.st_ex_size, (double)len,
538 (double)space_avail));
539
540 if (len > space_avail) {
541 errno = ENOSPC;
542 return -1;
543 }
544
545 return 0;
546 }
547
548 /****************************************************************************
549 A vfs set_filelen call.
550 set the length of a file from a filedescriptor.
551 Returns 0 on success, -1 on failure.
552 ****************************************************************************/
553
554 int vfs_set_filelen(files_struct *fsp, SMB_OFF_T len)
555 {
556 int ret;
557
558 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_SET_FILE_LEN);
559
560 DEBUG(10,("vfs_set_filelen: ftruncate %s to len %.0f\n",
561 fsp_str_dbg(fsp), (double)len));
562 flush_write_cache(fsp, SIZECHANGE_FLUSH);
563 if ((ret = SMB_VFS_FTRUNCATE(fsp, len)) != -1) {
564 set_filelen_write_cache(fsp, len);
565 notify_fname(fsp->conn, NOTIFY_ACTION_MODIFIED,
566 FILE_NOTIFY_CHANGE_SIZE
567 | FILE_NOTIFY_CHANGE_ATTRIBUTES,
568 fsp->fsp_name->base_name);
569 }
570
571 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_SET_FILE_LEN);
572
573 return ret;
574 }
575
576 /****************************************************************************
577 A slow version of fallocate. Fallback code if SMB_VFS_FALLOCATE
578 fails. Needs to be outside of the default version of SMB_VFS_FALLOCATE
579 as this is also called from the default SMB_VFS_FTRUNCATE code.
580 Always extends the file size.
581 Returns 0 on success, errno on failure.
582 ****************************************************************************/
583
584 #define SPARSE_BUF_WRITE_SIZE (32*1024)
585
586 int vfs_slow_fallocate(files_struct *fsp, SMB_OFF_T offset, SMB_OFF_T len)
587 {
588 ssize_t pwrite_ret;
589 size_t total = 0;
590
591 if (!sparse_buf) {
592 sparse_buf = SMB_CALLOC_ARRAY(char, SPARSE_BUF_WRITE_SIZE);
593 if (!sparse_buf) {
594 errno = ENOMEM;
595 return ENOMEM;
596 }
597 }
598
599 while (total < len) {
600 size_t curr_write_size = MIN(SPARSE_BUF_WRITE_SIZE, (len - total));
601
602 pwrite_ret = SMB_VFS_PWRITE(fsp, sparse_buf, curr_write_size, offset + total);
603 if (pwrite_ret == -1) {
604 DEBUG(10,("vfs_slow_fallocate: SMB_VFS_PWRITE for file "
605 "%s failed with error %s\n",
606 fsp_str_dbg(fsp), strerror(errno)));
607 return errno;
608 }
609 total += pwrite_ret;
610 }
611
612 return 0;
613 }
614
615 /****************************************************************************
616 A vfs fill sparse call.
617 Writes zeros from the end of file to len, if len is greater than EOF.
618 Used only by strict_sync.
619 Returns 0 on success, -1 on failure.
620 ****************************************************************************/
621
622 int vfs_fill_sparse(files_struct *fsp, SMB_OFF_T len)
623 {
624 int ret;
625 NTSTATUS status;
626 SMB_OFF_T offset;
627 size_t num_to_write;
628
629 status = vfs_stat_fsp(fsp);
630 if (!NT_STATUS_IS_OK(status)) {
631 return -1;
632 }
633
634 if (len <= fsp->fsp_name->st.st_ex_size) {
635 return 0;
636 }
637
638 #ifdef S_ISFIFO
639 if (S_ISFIFO(fsp->fsp_name->st.st_ex_mode)) {
640 return 0;
641 }
642 #endif
643
644 DEBUG(10,("vfs_fill_sparse: write zeros in file %s from len %.0f to "
645 "len %.0f (%.0f bytes)\n", fsp_str_dbg(fsp),
646 (double)fsp->fsp_name->st.st_ex_size, (double)len,
647 (double)(len - fsp->fsp_name->st.st_ex_size)));
648
649 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_FILL_SPARSE);
650
651 flush_write_cache(fsp, SIZECHANGE_FLUSH);
652
653 offset = fsp->fsp_name->st.st_ex_size;
654 num_to_write = len - fsp->fsp_name->st.st_ex_size;
655
656 /* Only do this on non-stream file handles. */
657 if (fsp->base_fsp == NULL) {
658 /* for allocation try fallocate first. This can fail on some
659 * platforms e.g. when the filesystem doesn't support it and no
660 * emulation is being done by the libc (like on AIX with JFS1). In that
661 * case we do our own emulation. fallocate implementations can
662 * return ENOTSUP or EINVAL in cases like that. */
663 ret = SMB_VFS_FALLOCATE(fsp, VFS_FALLOCATE_EXTEND_SIZE,
664 offset, num_to_write);
665 if (ret == ENOSPC) {
666 errno = ENOSPC;
667 ret = -1;
668 goto out;
669 }
670 if (ret == 0) {
671 goto out;
672 }
673 DEBUG(10,("vfs_fill_sparse: SMB_VFS_FALLOCATE failed with "
674 "error %d. Falling back to slow manual allocation\n", ret));
675 }
676
677 ret = vfs_slow_fallocate(fsp, offset, num_to_write);
678 if (ret != 0) {
679 errno = ret;
680 ret = -1;
681 }
682
683 out:
684
685 if (ret == 0) {
686 set_filelen_write_cache(fsp, len);
687 }
688
689 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_FILL_SPARSE);
690 return ret;
691 }
692
693 /****************************************************************************
694 Transfer some data (n bytes) between two file_struct's.
695 ****************************************************************************/
696
697 static ssize_t vfs_read_fn(void *file, void *buf, size_t len)
698 {
699 struct files_struct *fsp = (struct files_struct *)file;
700
701 return SMB_VFS_READ(fsp, buf, len);
702 }
703
704 static ssize_t vfs_write_fn(void *file, const void *buf, size_t len)
705 {
706 struct files_struct *fsp = (struct files_struct *)file;
707
708 return SMB_VFS_WRITE(fsp, buf, len);
709 }
710
711 SMB_OFF_T vfs_transfer_file(files_struct *in, files_struct *out, SMB_OFF_T n)
712 {
713 return transfer_file_internal((void *)in, (void *)out, n,
714 vfs_read_fn, vfs_write_fn);
715 }
716
717 /*******************************************************************
718 A vfs_readdir wrapper which just returns the file name.
719 ********************************************************************/
720
721 const char *vfs_readdirname(connection_struct *conn, void *p,
722 SMB_STRUCT_STAT *sbuf, char **talloced)
723 {
724 SMB_STRUCT_DIRENT *ptr= NULL;
725 const char *dname;
726 char *translated;
727 NTSTATUS status;
728
729 if (!p)
730 return(NULL);
731
732 ptr = SMB_VFS_READDIR(conn, (DIR *)p, sbuf);
733 if (!ptr)
734 return(NULL);
735
736 dname = ptr->d_name;
737
738
739 #ifdef NEXT2
740 if (telldir(p) < 0)
741 return(NULL);
742 #endif
743
744 #ifdef HAVE_BROKEN_READDIR_NAME
745 /* using /usr/ucb/cc is BAD */
746 dname = dname - 2;
747 #endif
748
749 status = SMB_VFS_TRANSLATE_NAME(conn, dname, vfs_translate_to_windows,
750 talloc_tos(), &translated);
751 if (NT_STATUS_EQUAL(status, NT_STATUS_NONE_MAPPED)) {
752 *talloced = NULL;
753 return dname;
754 }
755 *talloced = translated;
756 if (!NT_STATUS_IS_OK(status)) {
757 return NULL;
758 }
759 return translated;
760 }
761
762 /*******************************************************************
763 A wrapper for vfs_chdir().
764 ********************************************************************/
765
766 int vfs_ChDir(connection_struct *conn, const char *path)
767 {
768 int res;
769
770 if (!LastDir) {
771 LastDir = SMB_STRDUP("");
772 }
773
774 if (strcsequal(path,"."))
775 return(0);
776
777 if (*path == '/' && strcsequal(LastDir,path))
778 return(0);
779
780 DEBUG(4,("vfs_ChDir to %s\n",path));
781
782 res = SMB_VFS_CHDIR(conn,path);
783 if (!res) {
784 SAFE_FREE(LastDir);
785 LastDir = SMB_STRDUP(path);
786 }
787 return(res);
788 }
789
790 /*******************************************************************
791 Return the absolute current directory path - given a UNIX pathname.
792 Note that this path is returned in DOS format, not UNIX
793 format. Note this can be called with conn == NULL.
794 ********************************************************************/
795
796 char *vfs_GetWd(TALLOC_CTX *ctx, connection_struct *conn)
797 {
798 char s[PATH_MAX+1];
799 char *result = NULL;
800 DATA_BLOB cache_value;
801 struct file_id key;
802 struct smb_filename *smb_fname_dot = NULL;
803 struct smb_filename *smb_fname_full = NULL;
804 NTSTATUS status;
805
806 *s = 0;
807
808 if (!lp_getwd_cache()) {
809 goto nocache;
810 }
811
812 status = create_synthetic_smb_fname(ctx, ".", NULL, NULL,
813 &smb_fname_dot);
814 if (!NT_STATUS_IS_OK(status)) {
815 errno = map_errno_from_nt_status(status);
816 goto out;
817 }
818
819 if (SMB_VFS_STAT(conn, smb_fname_dot) == -1) {
820 /*
821 * Known to fail for root: the directory may be NFS-mounted
822 * and exported with root_squash (so has no root access).
823 */
824 DEBUG(1,("vfs_GetWd: couldn't stat \".\" error %s "
825 "(NFS problem ?)\n", strerror(errno) ));
826 goto nocache;
827 }
828
829 key = vfs_file_id_from_sbuf(conn, &smb_fname_dot->st);
830
831 if (!memcache_lookup(smbd_memcache(), GETWD_CACHE,
832 data_blob_const(&key, sizeof(key)),
833 &cache_value)) {
834 goto nocache;
835 }
836
837 SMB_ASSERT((cache_value.length > 0)
838 && (cache_value.data[cache_value.length-1] == '\0'));
839
840 status = create_synthetic_smb_fname(ctx, (char *)cache_value.data,
841 NULL, NULL, &smb_fname_full);
842 if (!NT_STATUS_IS_OK(status)) {
843 errno = map_errno_from_nt_status(status);
844 goto out;
845 }
846
847 if ((SMB_VFS_STAT(conn, smb_fname_full) == 0) &&
848 (smb_fname_dot->st.st_ex_dev == smb_fname_full->st.st_ex_dev) &&
849 (smb_fname_dot->st.st_ex_ino == smb_fname_full->st.st_ex_ino) &&
850 (S_ISDIR(smb_fname_dot->st.st_ex_mode))) {
851 /*
852 * Ok, we're done
853 */
854 result = talloc_strdup(ctx, smb_fname_full->base_name);
855 if (result == NULL) {
856 errno = ENOMEM;
857 }
858 goto out;
859 }
860
861 nocache:
862
863 /*
864 * We don't have the information to hand so rely on traditional
865 * methods. The very slow getcwd, which spawns a process on some
866 * systems, or the not quite so bad getwd.
867 */
868
869 if (!SMB_VFS_GETWD(conn,s)) {
870 DEBUG(0, ("vfs_GetWd: SMB_VFS_GETWD call failed: %s\n",
871 strerror(errno)));
872 goto out;
873 }
874
875 if (lp_getwd_cache() && VALID_STAT(smb_fname_dot->st)) {
876 key = vfs_file_id_from_sbuf(conn, &smb_fname_dot->st);
877
878 memcache_add(smbd_memcache(), GETWD_CACHE,
879 data_blob_const(&key, sizeof(key)),
880 data_blob_const(s, strlen(s)+1));
881 }
882
883 result = talloc_strdup(ctx, s);
884 if (result == NULL) {
885 errno = ENOMEM;
886 }
887
888 out:
889 TALLOC_FREE(smb_fname_dot);
890 TALLOC_FREE(smb_fname_full);
891 return result;
892 }
893
894 /*******************************************************************
895 Reduce a file name, removing .. elements and checking that
896 it is below dir in the heirachy. This uses realpath.
897 ********************************************************************/
898
899 NTSTATUS check_reduced_name(connection_struct *conn, const char *fname)
900 {
901 char *resolved_name = NULL;
902 char *p = NULL;
903
904 DEBUG(3,("check_reduced_name [%s] [%s]\n", fname, conn->connectpath));
905
906 resolved_name = SMB_VFS_REALPATH(conn,fname);
907
908 if (!resolved_name) {
909 switch (errno) {
910 case ENOTDIR:
911 DEBUG(3,("check_reduced_name: Component not a "
912 "directory in getting realpath for "
913 "%s\n", fname));
914 return NT_STATUS_OBJECT_PATH_NOT_FOUND;
915 case ENOENT:
916 {
917 TALLOC_CTX *ctx = talloc_tos();
918 char *tmp_fname = NULL;
919 char *last_component = NULL;
920 /* Last component didn't exist. Remove it and try and canonicalise the directory. */
921
922 tmp_fname = talloc_strdup(ctx, fname);
923 if (!tmp_fname) {
924 return NT_STATUS_NO_MEMORY;
925 }
926 p = strrchr_m(tmp_fname, '/');
927 if (p) {
928 *p++ = '\0';
929 last_component = p;
930 } else {
931 last_component = tmp_fname;
932 tmp_fname = talloc_strdup(ctx,
933 ".");
934 if (!tmp_fname) {
935 return NT_STATUS_NO_MEMORY;
936 }
937 }
938
939 resolved_name = SMB_VFS_REALPATH(conn,tmp_fname);
940 if (!resolved_name) {
941 NTSTATUS status = map_nt_error_from_unix(errno);
942
943 if (errno == ENOENT || errno == ENOTDIR) {
944 status = NT_STATUS_OBJECT_PATH_NOT_FOUND;
945 }
946
947 DEBUG(3,("check_reduce_name: "
948 "couldn't get realpath for "
949 "%s (%s)\n",
950 fname,
951 nt_errstr(status)));
952 return status;
953 }
954 tmp_fname = talloc_asprintf(ctx,
955 "%s/%s",
956 resolved_name,
957 last_component);
958 if (!tmp_fname) {
959 return NT_STATUS_NO_MEMORY;
960 }
961 SAFE_FREE(resolved_name);
962 resolved_name = SMB_STRDUP(tmp_fname);
963 if (!resolved_name) {
964 DEBUG(0, ("check_reduced_name: malloc "
965 "fail for %s\n", tmp_fname));
966 return NT_STATUS_NO_MEMORY;
967 }
968 break;
969 }
970 default:
971 DEBUG(3,("check_reduced_name: couldn't get "
972 "realpath for %s\n", fname));
973 return map_nt_error_from_unix(errno);
974 }
975 }
976
977 DEBUG(10,("check_reduced_name realpath [%s] -> [%s]\n", fname,
978 resolved_name));
979
980 if (*resolved_name != '/') {
981 DEBUG(0,("check_reduced_name: realpath doesn't return "
982 "absolute paths !\n"));
983 SAFE_FREE(resolved_name);
984 return NT_STATUS_OBJECT_NAME_INVALID;
985 }
986
987 /* Check for widelinks allowed. */
988 if (!lp_widelinks(SNUM(conn))) {
989 const char *conn_rootdir;
990
991 conn_rootdir = SMB_VFS_CONNECTPATH(conn, fname);
992 if (conn_rootdir == NULL) {
993 DEBUG(2, ("check_reduced_name: Could not get "
994 "conn_rootdir\n"));
995 SAFE_FREE(resolved_name);
996 return NT_STATUS_ACCESS_DENIED;
997 }
998
999 if (strncmp(conn_rootdir, resolved_name,
1000 strlen(conn_rootdir)) != 0) {
1001 DEBUG(2, ("check_reduced_name: Bad access "
1002 "attempt: %s is a symlink outside the "
1003 "share path\n", fname));
1004 DEBUGADD(2, ("conn_rootdir =%s\n", conn_rootdir));
1005 DEBUGADD(2, ("resolved_name=%s\n", resolved_name));
1006 SAFE_FREE(resolved_name);
1007 return NT_STATUS_ACCESS_DENIED;
1008 }
1009 }
1010
1011 /* Check if we are allowing users to follow symlinks */
1012 /* Patch from David Clerc <David.Clerc@cui.unige.ch>
1013 University of Geneva */
1014
1015 #ifdef S_ISLNK
1016 if (!lp_symlinks(SNUM(conn))) {
1017 struct smb_filename *smb_fname = NULL;
1018 NTSTATUS status;
1019
1020 status = create_synthetic_smb_fname(talloc_tos(), fname, NULL,
1021 NULL, &smb_fname);
1022 if (!NT_STATUS_IS_OK(status)) {
1023 SAFE_FREE(resolved_name);
1024 return status;
1025 }
1026
1027 if ( (SMB_VFS_LSTAT(conn, smb_fname) != -1) &&
1028 (S_ISLNK(smb_fname->st.st_ex_mode)) ) {
1029 SAFE_FREE(resolved_name);
1030 DEBUG(3,("check_reduced_name: denied: file path name "
1031 "%s is a symlink\n",resolved_name));
1032 TALLOC_FREE(smb_fname);
1033 return NT_STATUS_ACCESS_DENIED;
1034 }
1035 TALLOC_FREE(smb_fname);
1036 }
1037 #endif
1038
1039 DEBUG(3,("check_reduced_name: %s reduced to %s\n", fname,
1040 resolved_name));
1041 SAFE_FREE(resolved_name);
1042 return NT_STATUS_OK;
1043 }
1044
1045 /**
1046 * XXX: This is temporary and there should be no callers of this once
1047 * smb_filename is plumbed through all path based operations.
1048 */
1049 int vfs_stat_smb_fname(struct connection_struct *conn, const char *fname,
1050 SMB_STRUCT_STAT *psbuf)
1051 {
1052 struct smb_filename *smb_fname = NULL;
1053 NTSTATUS status;
1054 int ret;
1055
1056 status = create_synthetic_smb_fname_split(talloc_tos(), fname, NULL,
1057 &smb_fname);
1058 if (!NT_STATUS_IS_OK(status)) {
1059 errno = map_errno_from_nt_status(status);
1060 return -1;
1061 }
1062
1063 if (lp_posix_pathnames()) {
1064 ret = SMB_VFS_LSTAT(conn, smb_fname);
1065 } else {
1066 ret = SMB_VFS_STAT(conn, smb_fname);
1067 }
1068
1069 if (ret != -1) {
1070 *psbuf = smb_fname->st;
1071 }
1072
1073 TALLOC_FREE(smb_fname);
1074 return ret;
1075 }
1076
1077 /**
1078 * XXX: This is temporary and there should be no callers of this once
1079 * smb_filename is plumbed through all path based operations.
1080 */
1081 int vfs_lstat_smb_fname(struct connection_struct *conn, const char *fname,
1082 SMB_STRUCT_STAT *psbuf)
1083 {
1084 struct smb_filename *smb_fname = NULL;
1085 NTSTATUS status;
1086 int ret;
1087
1088 status = create_synthetic_smb_fname_split(talloc_tos(), fname, NULL,
1089 &smb_fname);
1090 if (!NT_STATUS_IS_OK(status)) {
1091 errno = map_errno_from_nt_status(status);
1092 return -1;
1093 }
1094
1095 ret = SMB_VFS_LSTAT(conn, smb_fname);
1096 if (ret != -1) {
1097 *psbuf = smb_fname->st;
1098 }
1099
1100 TALLOC_FREE(smb_fname);
1101 return ret;
1102 }
1103
1104 /**
1105 * Ensure LSTAT is called for POSIX paths.
1106 */
1107
1108 NTSTATUS vfs_stat_fsp(files_struct *fsp)
1109 {
1110 int ret;
1111
1112 if(fsp->fh->fd == -1) {
1113 if (fsp->posix_open) {
1114 ret = SMB_VFS_LSTAT(fsp->conn, fsp->fsp_name);
1115 } else {
1116 ret = SMB_VFS_STAT(fsp->conn, fsp->fsp_name);
1117 }
1118 if (ret == -1) {
1119 return map_nt_error_from_unix(errno);
1120 }
1121 } else {
1122 if(SMB_VFS_FSTAT(fsp, &fsp->fsp_name->st) != 0) {
1123 return map_nt_error_from_unix(errno);
1124 }
1125 }
1126 return NT_STATUS_OK;
1127 }
1128
1129 /*
1130 generate a file_id from a stat structure
1131 */
1132 struct file_id vfs_file_id_from_sbuf(connection_struct *conn, const SMB_STRUCT_STAT *sbuf)
1133 {
1134 return SMB_VFS_FILE_ID_CREATE(conn, sbuf);
1135 }
1136
1137 int smb_vfs_call_connect(struct vfs_handle_struct *handle,
1138 const char *service, const char *user)
1139 {
1140 VFS_FIND(connect_fn);
1141 return handle->fns->connect_fn(handle, service, user);
1142 }
1143
1144 void smb_vfs_call_disconnect(struct vfs_handle_struct *handle)
1145 {
1146 VFS_FIND(disconnect);
1147 handle->fns->disconnect(handle);
1148 }
1149
1150 uint64_t smb_vfs_call_disk_free(struct vfs_handle_struct *handle,
1151 const char *path, bool small_query,
1152 uint64_t *bsize, uint64_t *dfree,
1153 uint64_t *dsize)
1154 {
1155 VFS_FIND(disk_free);
1156 return handle->fns->disk_free(handle, path, small_query, bsize, dfree,
1157 dsize);
1158 }
1159
1160 int smb_vfs_call_get_quota(struct vfs_handle_struct *handle,
1161 enum SMB_QUOTA_TYPE qtype, unid_t id,
1162 SMB_DISK_QUOTA *qt)
1163 {
1164 VFS_FIND(get_quota);
1165 return handle->fns->get_quota(handle, qtype, id, qt);
1166 }
1167
1168 int smb_vfs_call_set_quota(struct vfs_handle_struct *handle,
1169 enum SMB_QUOTA_TYPE qtype, unid_t id,
1170 SMB_DISK_QUOTA *qt)
1171 {
1172 VFS_FIND(set_quota);
1173 return handle->fns->set_quota(handle, qtype, id, qt);
1174 }
1175
1176 int smb_vfs_call_get_shadow_copy_data(struct vfs_handle_struct *handle,
1177 struct files_struct *fsp,
1178 SHADOW_COPY_DATA *shadow_copy_data,
1179 bool labels)
1180 {
1181 VFS_FIND(get_shadow_copy_data);
1182 return handle->fns->get_shadow_copy_data(handle, fsp, shadow_copy_data,
1183 labels);
1184 }
1185 int smb_vfs_call_statvfs(struct vfs_handle_struct *handle, const char *path,
1186 struct vfs_statvfs_struct *statbuf)
1187 {
1188 VFS_FIND(statvfs);
1189 return handle->fns->statvfs(handle, path, statbuf);
1190 }
1191
1192 uint32_t smb_vfs_call_fs_capabilities(struct vfs_handle_struct *handle,
1193 enum timestamp_set_resolution *p_ts_res)
1194 {
1195 VFS_FIND(fs_capabilities);
1196 return handle->fns->fs_capabilities(handle, p_ts_res);
1197 }
1198
1199 SMB_STRUCT_DIR *smb_vfs_call_opendir(struct vfs_handle_struct *handle,
1200 const char *fname, const char *mask,
1201 uint32 attributes)
1202 {
1203 VFS_FIND(opendir);
1204 return handle->fns->opendir(handle, fname, mask, attributes);
1205 }
1206
1207 SMB_STRUCT_DIR *smb_vfs_call_fdopendir(struct vfs_handle_struct *handle,
1208 struct files_struct *fsp,
1209 const char *mask,
1210 uint32 attributes)
1211 {
1212 VFS_FIND(fdopendir);
1213 return handle->fns->fdopendir(handle, fsp, mask, attributes);
1214 }
1215
1216 SMB_STRUCT_DIRENT *smb_vfs_call_readdir(struct vfs_handle_struct *handle,
1217 SMB_STRUCT_DIR *dirp,
1218 SMB_STRUCT_STAT *sbuf)
1219 {
1220 VFS_FIND(readdir);
1221 return handle->fns->readdir(handle, dirp, sbuf);
1222 }
1223
1224 void smb_vfs_call_seekdir(struct vfs_handle_struct *handle,
1225 SMB_STRUCT_DIR *dirp, long offset)
1226 {
1227 VFS_FIND(seekdir);
1228 handle->fns->seekdir(handle, dirp, offset);
1229 }
1230
1231 long smb_vfs_call_telldir(struct vfs_handle_struct *handle,
1232 SMB_STRUCT_DIR *dirp)
1233 {
1234 VFS_FIND(telldir);
1235 return handle->fns->telldir(handle, dirp);
1236 }
1237
1238 void smb_vfs_call_rewind_dir(struct vfs_handle_struct *handle,
1239 SMB_STRUCT_DIR *dirp)
1240 {
1241 VFS_FIND(rewind_dir);
1242 handle->fns->rewind_dir(handle, dirp);
1243 }
1244
1245 int smb_vfs_call_mkdir(struct vfs_handle_struct *handle, const char *path,
1246 mode_t mode)
1247 {
1248 VFS_FIND(mkdir);
1249 return handle->fns->mkdir(handle, path, mode);
1250 }
1251
1252 int smb_vfs_call_rmdir(struct vfs_handle_struct *handle, const char *path)
1253 {
1254 VFS_FIND(rmdir);
1255 return handle->fns->rmdir(handle, path);
1256 }
1257
1258 int smb_vfs_call_closedir(struct vfs_handle_struct *handle,
1259 SMB_STRUCT_DIR *dir)
1260 {
1261 VFS_FIND(closedir);
1262 return handle->fns->closedir(handle, dir);
1263 }
1264
1265 void smb_vfs_call_init_search_op(struct vfs_handle_struct *handle,
1266 SMB_STRUCT_DIR *dirp)
1267 {
1268 VFS_FIND(init_search_op);
1269 handle->fns->init_search_op(handle, dirp);
1270 }
1271
1272 int smb_vfs_call_open(struct vfs_handle_struct *handle,
1273 struct smb_filename *smb_fname, struct files_struct *fsp,
1274 int flags, mode_t mode)
1275 {
1276 VFS_FIND(open);
1277 return handle->fns->open(handle, smb_fname, fsp, flags, mode);
1278 }
1279
1280 NTSTATUS smb_vfs_call_create_file(struct vfs_handle_struct *handle,
1281 struct smb_request *req,
1282 uint16_t root_dir_fid,
1283 struct smb_filename *smb_fname,
1284 uint32_t access_mask,
1285 uint32_t share_access,
1286 uint32_t create_disposition,
1287 uint32_t create_options,
1288 uint32_t file_attributes,
1289 uint32_t oplock_request,
1290 uint64_t allocation_size,
1291 uint32_t private_flags,
1292 struct security_descriptor *sd,
1293 struct ea_list *ea_list,
1294 files_struct **result,
1295 int *pinfo)
1296 {
1297 VFS_FIND(create_file);
1298 return handle->fns->create_file(
1299 handle, req, root_dir_fid, smb_fname, access_mask,
1300 share_access, create_disposition, create_options,
1301 file_attributes, oplock_request, allocation_size,
1302 private_flags, sd, ea_list,
1303 result, pinfo);
1304 }
1305
1306 int smb_vfs_call_close_fn(struct vfs_handle_struct *handle,
1307 struct files_struct *fsp)
1308 {
1309 VFS_FIND(close_fn);
1310 return handle->fns->close_fn(handle, fsp);
1311 }
1312
1313 ssize_t smb_vfs_call_vfs_read(struct vfs_handle_struct *handle,
1314 struct files_struct *fsp, void *data, size_t n)
1315 {
1316 VFS_FIND(vfs_read);
1317 return handle->fns->vfs_read(handle, fsp, data, n);
1318 }
1319
1320 ssize_t smb_vfs_call_pread(struct vfs_handle_struct *handle,
1321 struct files_struct *fsp, void *data, size_t n,
1322 SMB_OFF_T offset)
1323 {
1324 VFS_FIND(pread);
1325 return handle->fns->pread(handle, fsp, data, n, offset);
1326 }
1327
1328 ssize_t smb_vfs_call_write(struct vfs_handle_struct *handle,
1329 struct files_struct *fsp, const void *data,
1330 size_t n)
1331 {
1332 VFS_FIND(write);
1333 return handle->fns->write(handle, fsp, data, n);
1334 }
1335
1336 ssize_t smb_vfs_call_pwrite(struct vfs_handle_struct *handle,
1337 struct files_struct *fsp, const void *data,
1338 size_t n, SMB_OFF_T offset)
1339 {
1340 VFS_FIND(pwrite);
1341 return handle->fns->pwrite(handle, fsp, data, n, offset);
1342 }
1343
1344 SMB_OFF_T smb_vfs_call_lseek(struct vfs_handle_struct *handle,
1345 struct files_struct *fsp, SMB_OFF_T offset,
1346 int whence)
1347 {
1348 VFS_FIND(lseek);
1349 return handle->fns->lseek(handle, fsp, offset, whence);
1350 }
1351
1352 ssize_t smb_vfs_call_sendfile(struct vfs_handle_struct *handle, int tofd,
1353 files_struct *fromfsp, const DATA_BLOB *header,
1354 SMB_OFF_T offset, size_t count)
1355 {
1356 VFS_FIND(sendfile);
1357 return handle->fns->sendfile(handle, tofd, fromfsp, header, offset,
1358 count);
1359 }
1360
1361 ssize_t smb_vfs_call_recvfile(struct vfs_handle_struct *handle, int fromfd,
1362 files_struct *tofsp, SMB_OFF_T offset,
1363 size_t count)
1364 {
1365 VFS_FIND(recvfile);
1366 return handle->fns->recvfile(handle, fromfd, tofsp, offset, count);
1367 }
1368
1369 int smb_vfs_call_rename(struct vfs_handle_struct *handle,
1370 const struct smb_filename *smb_fname_src,
1371 const struct smb_filename *smb_fname_dst)
1372 {
1373 VFS_FIND(rename);
1374 return handle->fns->rename(handle, smb_fname_src, smb_fname_dst);
1375 }
1376
1377 int smb_vfs_call_fsync(struct vfs_handle_struct *handle,
1378 struct files_struct *fsp)
1379 {
1380 VFS_FIND(fsync);
1381 return handle->fns->fsync(handle, fsp);
1382 }
1383
1384 int smb_vfs_call_stat(struct vfs_handle_struct *handle,
1385 struct smb_filename *smb_fname)
1386 {
1387 VFS_FIND(stat);
1388 return handle->fns->stat(handle, smb_fname);
1389 }
1390
1391 int smb_vfs_call_fstat(struct vfs_handle_struct *handle,
1392 struct files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1393 {
1394 VFS_FIND(fstat);
1395 return handle->fns->fstat(handle, fsp, sbuf);
1396 }
1397
1398 int smb_vfs_call_lstat(struct vfs_handle_struct *handle,
1399 struct smb_filename *smb_filename)
1400 {
1401 VFS_FIND(lstat);
1402 return handle->fns->lstat(handle, smb_filename);
1403 }
1404
1405 uint64_t smb_vfs_call_get_alloc_size(struct vfs_handle_struct *handle,
1406 struct files_struct *fsp,
1407 const SMB_STRUCT_STAT *sbuf)
1408 {
1409 VFS_FIND(get_alloc_size);
1410 return handle->fns->get_alloc_size(handle, fsp, sbuf);
1411 }
1412
1413 int smb_vfs_call_unlink(struct vfs_handle_struct *handle,
1414 const struct smb_filename *smb_fname)
1415 {
1416 VFS_FIND(unlink);
1417 return handle->fns->unlink(handle, smb_fname);
1418 }
1419
1420 int smb_vfs_call_chmod(struct vfs_handle_struct *handle, const char *path,
1421 mode_t mode)
1422 {
1423 VFS_FIND(chmod);
1424 return handle->fns->chmod(handle, path, mode);
1425 }
1426
1427 int smb_vfs_call_fchmod(struct vfs_handle_struct *handle,
1428 struct files_struct *fsp, mode_t mode)
1429 {
1430 VFS_FIND(fchmod);
1431 return handle->fns->fchmod(handle, fsp, mode);
1432 }
1433
1434 int smb_vfs_call_chown(struct vfs_handle_struct *handle, const char *path,
1435 uid_t uid, gid_t gid)
1436 {
1437 VFS_FIND(chown);
1438 return handle->fns->chown(handle, path, uid, gid);
1439 }
1440
1441 int smb_vfs_call_fchown(struct vfs_handle_struct *handle,
1442 struct files_struct *fsp, uid_t uid, gid_t gid)
1443 {
1444 VFS_FIND(fchown);
1445 return handle->fns->fchown(handle, fsp, uid, gid);
1446 }
1447
1448 int smb_vfs_call_lchown(struct vfs_handle_struct *handle, const char *path,
1449 uid_t uid, gid_t gid)
1450 {
1451 VFS_FIND(lchown);
1452 return handle->fns->lchown(handle, path, uid, gid);
1453 }
1454
1455 NTSTATUS vfs_chown_fsp(files_struct *fsp, uid_t uid, gid_t gid)
1456 {
1457 int ret;
1458 bool as_root = false;
1459 const char *path;
1460 char *saved_dir = NULL;
1461 char *parent_dir = NULL;
1462 NTSTATUS status;
1463
1464 if (fsp->fh->fd != -1) {
1465 /* Try fchown. */
1466 ret = SMB_VFS_FCHOWN(fsp, uid, gid);
1467 if (ret == 0) {
1468 return NT_STATUS_OK;
1469 }
1470 if (ret == -1 && errno != ENOSYS) {
1471 return map_nt_error_from_unix(errno);
1472 }
1473 }
1474
1475 as_root = (geteuid() == 0);
1476
1477 if (as_root) {
1478 /*
1479 * We are being asked to chown as root. Make
1480 * sure we chdir() into the path to pin it,
1481 * and always act using lchown to ensure we
1482 * don't deref any symbolic links.
1483 */
1484 const char *final_component = NULL;
1485 struct smb_filename local_fname;
1486
1487 saved_dir = vfs_GetWd(talloc_tos(),fsp->conn);
1488 if (!saved_dir) {
1489 status = map_nt_error_from_unix(errno);
1490 DEBUG(0,("vfs_chown_fsp: failed to get "
1491 "current working directory. Error was %s\n",
1492 strerror(errno)));
1493 return status;
1494 }
1495
1496 if (!parent_dirname(talloc_tos(),
1497 fsp->fsp_name->base_name,
1498 &parent_dir,
1499 &final_component)) {
1500 return NT_STATUS_NO_MEMORY;
1501 }
1502
1503 /* cd into the parent dir to pin it. */
1504 ret = SMB_VFS_CHDIR(fsp->conn, parent_dir);
1505 if (ret == -1) {
1506 return map_nt_error_from_unix(errno);
1507 }
1508
1509 ZERO_STRUCT(local_fname);
1510 local_fname.base_name = CONST_DISCARD(char *,final_component);
1511
1512 /* Must use lstat here. */
1513 ret = SMB_VFS_LSTAT(fsp->conn, &local_fname);
1514 if (ret == -1) {
1515 return map_nt_error_from_unix(errno);
1516 }
1517
1518 /* Ensure it matches the fsp stat. */
1519 if (!check_same_stat(&local_fname.st, &fsp->fsp_name->st)) {
1520 return NT_STATUS_ACCESS_DENIED;
1521 }
1522 path = final_component;
1523 } else {
1524 path = fsp->fsp_name->base_name;
1525 }
1526
1527 if (fsp->posix_open || as_root) {
1528 ret = SMB_VFS_LCHOWN(fsp->conn,
1529 path,
1530 uid, gid);
1531 } else {
1532 ret = SMB_VFS_CHOWN(fsp->conn,
1533 path,
1534 uid, gid);
1535 }
1536
1537 if (ret == 0) {
1538 status = NT_STATUS_OK;
1539 } else {
1540 status = map_nt_error_from_unix(errno);
1541 }
1542
1543 if (as_root) {
1544 vfs_ChDir(fsp->conn,saved_dir);
1545 TALLOC_FREE(saved_dir);
1546 TALLOC_FREE(parent_dir);
1547 }
1548 return status;
1549 }
1550
1551 int smb_vfs_call_chdir(struct vfs_handle_struct *handle, const char *path)
1552 {
1553 VFS_FIND(chdir);
1554 return handle->fns->chdir(handle, path);
1555 }
1556
1557 char *smb_vfs_call_getwd(struct vfs_handle_struct *handle, char *buf)
1558 {
1559 VFS_FIND(getwd);
1560 return handle->fns->getwd(handle, buf);
1561 }
1562
1563 int smb_vfs_call_ntimes(struct vfs_handle_struct *handle,
1564 const struct smb_filename *smb_fname,
1565 struct smb_file_time *ft)
1566 {
1567 VFS_FIND(ntimes);
1568 return handle->fns->ntimes(handle, smb_fname, ft);
1569 }
1570
1571 int smb_vfs_call_ftruncate(struct vfs_handle_struct *handle,
1572 struct files_struct *fsp, SMB_OFF_T offset)
1573 {
1574 VFS_FIND(ftruncate);
1575 return handle->fns->ftruncate(handle, fsp, offset);
1576 }
1577
1578 int smb_vfs_call_fallocate(struct vfs_handle_struct *handle,
1579 struct files_struct *fsp,
1580 enum vfs_fallocate_mode mode,
1581 SMB_OFF_T offset,
1582 SMB_OFF_T len)
1583 {
1584 VFS_FIND(fallocate);
1585 return handle->fns->fallocate(handle, fsp, mode, offset, len);
1586 }
1587
1588 int smb_vfs_call_kernel_flock(struct vfs_handle_struct *handle,
1589 struct files_struct *fsp, uint32 share_mode,
1590 uint32_t access_mask)
1591 {
1592 VFS_FIND(kernel_flock);
1593 return handle->fns->kernel_flock(handle, fsp, share_mode,
1594 access_mask);
1595 }
1596
1597 int smb_vfs_call_linux_setlease(struct vfs_handle_struct *handle,
1598 struct files_struct *fsp, int leasetype)
1599 {
1600 VFS_FIND(linux_setlease);
1601 return handle->fns->linux_setlease(handle, fsp, leasetype);
1602 }
1603
1604 int smb_vfs_call_symlink(struct vfs_handle_struct *handle, const char *oldpath,
1605 const char *newpath)
1606 {
1607 VFS_FIND(symlink);
1608 return handle->fns->symlink(handle, oldpath, newpath);
1609 }
1610
1611 int smb_vfs_call_vfs_readlink(struct vfs_handle_struct *handle,
1612 const char *path, char *buf, size_t bufsiz)
1613 {
1614 VFS_FIND(vfs_readlink);
1615 return handle->fns->vfs_readlink(handle, path, buf, bufsiz);
1616 }
1617
1618 int smb_vfs_call_link(struct vfs_handle_struct *handle, const char *oldpath,
1619 const char *newpath)
1620 {
1621 VFS_FIND(link);
1622 return handle->fns->link(handle, oldpath, newpath);
1623 }
1624
1625 int smb_vfs_call_mknod(struct vfs_handle_struct *handle, const char *path,
1626 mode_t mode, SMB_DEV_T dev)
1627 {
1628 VFS_FIND(mknod);
1629 return handle->fns->mknod(handle, path, mode, dev);
1630 }
1631
1632 char *smb_vfs_call_realpath(struct vfs_handle_struct *handle, const char *path)
1633 {
1634 VFS_FIND(realpath);
1635 return handle->fns->realpath(handle, path);
1636 }
1637
1638 NTSTATUS smb_vfs_call_notify_watch(struct vfs_handle_struct *handle,
1639 struct sys_notify_context *ctx,
1640 struct notify_entry *e,
1641 void (*callback)(struct sys_notify_context *ctx,
1642 void *private_data,
1643 struct notify_event *ev),
1644 void *private_data, void *handle_p)
1645 {
1646 VFS_FIND(notify_watch);
1647 return handle->fns->notify_watch(handle, ctx, e, callback,
1648 private_data, handle_p);
1649 }
1650
1651 int smb_vfs_call_chflags(struct vfs_handle_struct *handle, const char *path,
1652 unsigned int flags)
1653 {
1654 VFS_FIND(chflags);
1655 return handle->fns->chflags(handle, path, flags);
1656 }
1657
1658 struct file_id smb_vfs_call_file_id_create(struct vfs_handle_struct *handle,
1659 const SMB_STRUCT_STAT *sbuf)
1660 {
1661 VFS_FIND(file_id_create);
1662 return handle->fns->file_id_create(handle, sbuf);
1663 }
1664
1665 NTSTATUS smb_vfs_call_streaminfo(struct vfs_handle_struct *handle,
1666 struct files_struct *fsp,
1667 const char *fname,
1668 TALLOC_CTX *mem_ctx,
1669 unsigned int *num_streams,
1670 struct stream_struct **streams)
1671 {
1672 VFS_FIND(streaminfo);
1673 return handle->fns->streaminfo(handle, fsp, fname, mem_ctx,
1674 num_streams, streams);
1675 }
1676
1677 int smb_vfs_call_get_real_filename(struct vfs_handle_struct *handle,
1678 const char *path, const char *name,
1679 TALLOC_CTX *mem_ctx, char **found_name)
1680 {
1681 VFS_FIND(get_real_filename);
1682 return handle->fns->get_real_filename(handle, path, name, mem_ctx,
1683 found_name);
1684 }
1685
1686 const char *smb_vfs_call_connectpath(struct vfs_handle_struct *handle,
1687 const char *filename)
1688 {
1689 VFS_FIND(connectpath);
1690 return handle->fns->connectpath(handle, filename);
1691 }
1692
1693 bool smb_vfs_call_strict_lock(struct vfs_handle_struct *handle,
1694 struct files_struct *fsp,
1695 struct lock_struct *plock)
1696 {
1697 VFS_FIND(strict_lock);
1698 return handle->fns->strict_lock(handle, fsp, plock);
1699 }
1700
1701 void smb_vfs_call_strict_unlock(struct vfs_handle_struct *handle,
1702 struct files_struct *fsp,
1703 struct lock_struct *plock)
1704 {
1705 VFS_FIND(strict_unlock);
1706 handle->fns->strict_unlock(handle, fsp, plock);
1707 }
1708
1709 NTSTATUS smb_vfs_call_translate_name(struct vfs_handle_struct *handle,
1710 const char *name,
1711 enum vfs_translate_direction direction,
1712 TALLOC_CTX *mem_ctx,
1713 char **mapped_name)
1714 {
1715 VFS_FIND(translate_name);
1716 return handle->fns->translate_name(handle, name, direction, mem_ctx,
1717 mapped_name);
1718 }
1719
1720 NTSTATUS smb_vfs_call_fget_nt_acl(struct vfs_handle_struct *handle,
1721 struct files_struct *fsp,
1722 uint32 security_info,
1723 struct security_descriptor **ppdesc)
1724 {
1725 VFS_FIND(fget_nt_acl);
1726 return handle->fns->fget_nt_acl(handle, fsp, security_info,
1727 ppdesc);
1728 }
1729
1730 NTSTATUS smb_vfs_call_get_nt_acl(struct vfs_handle_struct *handle,
1731 const char *name,
1732 uint32 security_info,
1733 struct security_descriptor **ppdesc)
1734 {
1735 VFS_FIND(get_nt_acl);
1736 return handle->fns->get_nt_acl(handle, name, security_info, ppdesc);
1737 }
1738
1739 NTSTATUS smb_vfs_call_fset_nt_acl(struct vfs_handle_struct *handle,
1740 struct files_struct *fsp,
1741 uint32 security_info_sent,
1742 const struct security_descriptor *psd)
1743 {
1744 VFS_FIND(fset_nt_acl);
1745 return handle->fns->fset_nt_acl(handle, fsp, security_info_sent, psd);
1746 }
1747
1748 int smb_vfs_call_chmod_acl(struct vfs_handle_struct *handle, const char *name,
1749 mode_t mode)
1750 {
1751 VFS_FIND(chmod_acl);
1752 return handle->fns->chmod_acl(handle, name, mode);
1753 }
1754
1755 int smb_vfs_call_fchmod_acl(struct vfs_handle_struct *handle,
1756 struct files_struct *fsp, mode_t mode)
1757 {
1758 VFS_FIND(fchmod_acl);
1759 return handle->fns->fchmod_acl(handle, fsp, mode);
1760 }
1761
1762 int smb_vfs_call_sys_acl_get_entry(struct vfs_handle_struct *handle,
1763 SMB_ACL_T theacl, int entry_id,
1764 SMB_ACL_ENTRY_T *entry_p)
1765 {
1766 VFS_FIND(sys_acl_get_entry);
1767 return handle->fns->sys_acl_get_entry(handle, theacl, entry_id,
1768 entry_p);
1769 }
1770
1771 int smb_vfs_call_sys_acl_get_tag_type(struct vfs_handle_struct *handle,
1772 SMB_ACL_ENTRY_T entry_d,
1773 SMB_ACL_TAG_T *tag_type_p)
1774 {
1775 VFS_FIND(sys_acl_get_tag_type);
1776 return handle->fns->sys_acl_get_tag_type(handle, entry_d, tag_type_p);
1777 }
1778
1779 int smb_vfs_call_sys_acl_get_permset(struct vfs_handle_struct *handle,
1780 SMB_ACL_ENTRY_T entry_d,
1781 SMB_ACL_PERMSET_T *permset_p)
1782 {
1783 VFS_FIND(sys_acl_get_permset);
1784 return handle->fns->sys_acl_get_permset(handle, entry_d, permset_p);
1785 }
1786
1787 void * smb_vfs_call_sys_acl_get_qualifier(struct vfs_handle_struct *handle,
1788 SMB_ACL_ENTRY_T entry_d)
1789 {
1790 VFS_FIND(sys_acl_get_qualifier);
1791 return handle->fns->sys_acl_get_qualifier(handle, entry_d);
1792 }
1793
1794 SMB_ACL_T smb_vfs_call_sys_acl_get_file(struct vfs_handle_struct *handle,
1795 const char *path_p,
1796 SMB_ACL_TYPE_T type)
1797 {
1798 VFS_FIND(sys_acl_get_file);
1799 return handle->fns->sys_acl_get_file(handle, path_p, type);
1800 }
1801
1802 SMB_ACL_T smb_vfs_call_sys_acl_get_fd(struct vfs_handle_struct *handle,
1803 struct files_struct *fsp)
1804 {
1805 VFS_FIND(sys_acl_get_fd);
1806 return handle->fns->sys_acl_get_fd(handle, fsp);
1807 }
1808
1809 int smb_vfs_call_sys_acl_clear_perms(struct vfs_handle_struct *handle,
1810 SMB_ACL_PERMSET_T permset)
1811 {
1812 VFS_FIND(sys_acl_clear_perms);
1813 return handle->fns->sys_acl_clear_perms(handle, permset);
1814 }
1815
1816 int smb_vfs_call_sys_acl_add_perm(struct vfs_handle_struct *handle,
1817 SMB_ACL_PERMSET_T permset,
1818 SMB_ACL_PERM_T perm)
1819 {
1820 VFS_FIND(sys_acl_add_perm);
1821 return handle->fns->sys_acl_add_perm(handle, permset, perm);
1822 }
1823
1824 char * smb_vfs_call_sys_acl_to_text(struct vfs_handle_struct *handle,
1825 SMB_ACL_T theacl, ssize_t *plen)
1826 {
1827 VFS_FIND(sys_acl_to_text);
1828 return handle->fns->sys_acl_to_text(handle, theacl, plen);
1829 }
1830
1831 SMB_ACL_T smb_vfs_call_sys_acl_init(struct vfs_handle_struct *handle,
1832 int count)
1833 {
1834 VFS_FIND(sys_acl_init);
1835 return handle->fns->sys_acl_init(handle, count);
1836 }
1837
1838 int smb_vfs_call_sys_acl_create_entry(struct vfs_handle_struct *handle,
1839 SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry)
1840 {
1841 VFS_FIND(sys_acl_create_entry);
1842 return handle->fns->sys_acl_create_entry(handle, pacl, pentry);
1843 }
1844
1845 int smb_vfs_call_sys_acl_set_tag_type(struct vfs_handle_struct *handle,
1846 SMB_ACL_ENTRY_T entry,
1847 SMB_ACL_TAG_T tagtype)
1848 {
1849 VFS_FIND(sys_acl_set_tag_type);
1850 return handle->fns->sys_acl_set_tag_type(handle, entry, tagtype);
1851 }
1852
1853 int smb_vfs_call_sys_acl_set_qualifier(struct vfs_handle_struct *handle,
1854 SMB_ACL_ENTRY_T entry, void *qual)
1855 {
1856 VFS_FIND(sys_acl_set_qualifier);
1857 return handle->fns->sys_acl_set_qualifier(handle, entry, qual);
1858 }
1859
1860 int smb_vfs_call_sys_acl_set_permset(struct vfs_handle_struct *handle,
1861 SMB_ACL_ENTRY_T entry,
1862 SMB_ACL_PERMSET_T permset)
1863 {
1864 VFS_FIND(sys_acl_set_permset);
1865 return handle->fns->sys_acl_set_permset(handle, entry, permset);
1866 }
1867
1868 int smb_vfs_call_sys_acl_valid(struct vfs_handle_struct *handle,
1869 SMB_ACL_T theacl)
1870 {
1871 VFS_FIND(sys_acl_valid);
1872 return handle->fns->sys_acl_valid(handle, theacl);
1873 }
1874
1875 int smb_vfs_call_sys_acl_set_file(struct vfs_handle_struct *handle,
1876 const char *name, SMB_ACL_TYPE_T acltype,
1877 SMB_ACL_T theacl)
1878 {
1879 VFS_FIND(sys_acl_set_file);
1880 return handle->fns->sys_acl_set_file(handle, name, acltype, theacl);
1881 }
1882
1883 int smb_vfs_call_sys_acl_set_fd(struct vfs_handle_struct *handle,
1884 struct files_struct *fsp, SMB_ACL_T theacl)
1885 {
1886 VFS_FIND(sys_acl_set_fd);
1887 return handle->fns->sys_acl_set_fd(handle, fsp, theacl);
1888 }
1889
1890 int smb_vfs_call_sys_acl_delete_def_file(struct vfs_handle_struct *handle,
1891 const char *path)
1892 {
1893 VFS_FIND(sys_acl_delete_def_file);
1894 return handle->fns->sys_acl_delete_def_file(handle, path);
1895 }
1896
1897 int smb_vfs_call_sys_acl_get_perm(struct vfs_handle_struct *handle,
1898 SMB_ACL_PERMSET_T permset,
1899 SMB_ACL_PERM_T perm)
1900 {
1901 VFS_FIND(sys_acl_get_perm);
1902 return handle->fns->sys_acl_get_perm(handle, permset, perm);
1903 }
1904
1905 int smb_vfs_call_sys_acl_free_text(struct vfs_handle_struct *handle,
1906 char *text)
1907 {
1908 VFS_FIND(sys_acl_free_text);
1909 return handle->fns->sys_acl_free_text(handle, text);
1910 }
1911
1912 int smb_vfs_call_sys_acl_free_acl(struct vfs_handle_struct *handle,
1913 SMB_ACL_T posix_acl)
1914 {
1915 VFS_FIND(sys_acl_free_acl);
1916 return handle->fns->sys_acl_free_acl(handle, posix_acl);
1917 }
1918
1919 int smb_vfs_call_sys_acl_free_qualifier(struct vfs_handle_struct *handle,
1920 void *qualifier, SMB_ACL_TAG_T tagtype)
1921 {
1922 VFS_FIND(sys_acl_free_qualifier);
1923 return handle->fns->sys_acl_free_qualifier(handle, qualifier, tagtype);
1924 }
1925
1926 ssize_t smb_vfs_call_getxattr(struct vfs_handle_struct *handle,
1927 const char *path, const char *name, void *value,
1928 size_t size)
1929 {
1930 VFS_FIND(getxattr);
1931 return handle->fns->getxattr(handle, path, name, value, size);
1932 }
1933
1934 ssize_t smb_vfs_call_lgetxattr(struct vfs_handle_struct *handle,
1935 const char *path, const char *name, void *value,
1936 size_t size)
1937 {
1938 VFS_FIND(lgetxattr);
1939 return handle->fns->lgetxattr(handle, path, name, value, size);
1940 }
1941
1942 ssize_t smb_vfs_call_fgetxattr(struct vfs_handle_struct *handle,
1943 struct files_struct *fsp, const char *name,
1944 void *value, size_t size)
1945 {
1946 VFS_FIND(fgetxattr);
1947 return handle->fns->fgetxattr(handle, fsp, name, value, size);
1948 }
1949
1950 ssize_t smb_vfs_call_listxattr(struct vfs_handle_struct *handle,
1951 const char *path, char *list, size_t size)
1952 {
1953 VFS_FIND(listxattr);
1954 return handle->fns->listxattr(handle, path, list, size);
1955 }
1956
1957 ssize_t smb_vfs_call_llistxattr(struct vfs_handle_struct *handle,
1958 const char *path, char *list, size_t size)
1959 {
1960 VFS_FIND(llistxattr);
1961 return handle->fns->llistxattr(handle, path, list, size);
1962 }
1963
1964 ssize_t smb_vfs_call_flistxattr(struct vfs_handle_struct *handle,
1965 struct files_struct *fsp, char *list,
1966 size_t size)
1967 {
1968 VFS_FIND(flistxattr);
1969 return handle->fns->flistxattr(handle, fsp, list, size);
1970 }
1971
1972 int smb_vfs_call_removexattr(struct vfs_handle_struct *handle,
1973 const char *path, const char *name)
1974 {
1975 VFS_FIND(removexattr);
1976 return handle->fns->removexattr(handle, path, name);
1977 }
1978
1979 int smb_vfs_call_lremovexattr(struct vfs_handle_struct *handle,
1980 const char *path, const char *name)
1981 {
1982 VFS_FIND(lremovexattr);
1983 return handle->fns->lremovexattr(handle, path, name);
1984 }
1985
1986 int smb_vfs_call_fremovexattr(struct vfs_handle_struct *handle,
1987 struct files_struct *fsp, const char *name)
1988 {
1989 VFS_FIND(fremovexattr);
1990 return handle->fns->fremovexattr(handle, fsp, name);
1991 }
1992
1993 int smb_vfs_call_setxattr(struct vfs_handle_struct *handle, const char *path,
1994 const char *name, const void *value, size_t size,
1995 int flags)
1996 {
1997 VFS_FIND(setxattr);
1998 return handle->fns->setxattr(handle, path, name, value, size, flags);
1999 }
2000
2001 int smb_vfs_call_lsetxattr(struct vfs_handle_struct *handle, const char *path,
2002 const char *name, const void *value, size_t size,
2003 int flags)
2004 {
2005 VFS_FIND(lsetxattr);
2006 return handle->fns->lsetxattr(handle, path, name, value, size, flags);
2007 }
2008
2009 int smb_vfs_call_fsetxattr(struct vfs_handle_struct *handle,
2010 struct files_struct *fsp, const char *name,
2011 const void *value, size_t size, int flags)
2012 {
2013 VFS_FIND(fsetxattr);
2014 return handle->fns->fsetxattr(handle, fsp, name, value, size, flags);
2015 }
2016
2017 int smb_vfs_call_aio_read(struct vfs_handle_struct *handle,
2018 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
2019 {
2020 VFS_FIND(aio_read);
2021 return handle->fns->aio_read(handle, fsp, aiocb);
2022 }
2023
2024 int smb_vfs_call_aio_write(struct vfs_handle_struct *handle,
2025 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
2026 {
2027 VFS_FIND(aio_write);
2028 return handle->fns->aio_write(handle, fsp, aiocb);
2029 }
2030
2031 ssize_t smb_vfs_call_aio_return_fn(struct vfs_handle_struct *handle,
2032 struct files_struct *fsp,
2033 SMB_STRUCT_AIOCB *aiocb)
2034 {
2035 VFS_FIND(aio_return_fn);
2036 return handle->fns->aio_return_fn(handle, fsp, aiocb);
2037 }
2038
2039 int smb_vfs_call_aio_cancel(struct vfs_handle_struct *handle,
2040 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
2041 {
2042 VFS_FIND(aio_cancel);
2043 return handle->fns->aio_cancel(handle, fsp, aiocb);
2044 }
2045
2046 int smb_vfs_call_aio_error_fn(struct vfs_handle_struct *handle,
2047 struct files_struct *fsp,
2048 SMB_STRUCT_AIOCB *aiocb)
2049 {
2050 VFS_FIND(aio_error_fn);
2051 return handle->fns->aio_error_fn(handle, fsp, aiocb);
2052 }
2053
2054 int smb_vfs_call_aio_fsync(struct vfs_handle_struct *handle,
2055 struct files_struct *fsp, int op,
2056 SMB_STRUCT_AIOCB *aiocb)
2057 {
2058 VFS_FIND(aio_fsync);
2059 return handle->fns->aio_fsync(handle, fsp, op, aiocb);
2060 }
2061
2062 int smb_vfs_call_aio_suspend(struct vfs_handle_struct *handle,
2063 struct files_struct *fsp,
2064 const SMB_STRUCT_AIOCB * const aiocb[], int n,
2065 const struct timespec *timeout)
2066 {
2067 VFS_FIND(aio_suspend);
2068 return handle->fns->aio_suspend(handle, fsp, aiocb, n, timeout);
2069 }
2070
2071 bool smb_vfs_call_aio_force(struct vfs_handle_struct *handle,
2072 struct files_struct *fsp)
2073 {
2074 VFS_FIND(aio_force);
2075 return handle->fns->aio_force(handle, fsp);
2076 }
2077
2078 bool smb_vfs_call_is_offline(struct vfs_handle_struct *handle,
2079 const struct smb_filename *fname,
2080 SMB_STRUCT_STAT *sbuf)
2081 {
2082 VFS_FIND(is_offline);
2083 return handle->fns->is_offline(handle, fname, sbuf);
2084 }
2085
2086 int smb_vfs_call_set_offline(struct vfs_handle_struct *handle,
2087 const struct smb_filename *fname)
2088 {
2089 VFS_FIND(set_offline);
2090 return handle->fns->set_offline(handle, fname);
2091 }
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