source: vendor/3.6.0/source3/smbd/vfs.c

Last change on this file was 740, checked in by Silvan Scherrer, 13 years ago

Samba Server: update vendor to 3.6.0
File size: 55.7 KB
Line 
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
37static_decl_vfs;
38
39struct 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
49static 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
63NTSTATUS 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
100static 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
110bool 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
216void *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
241void 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
264void *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
277void *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
295bool 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
326NTSTATUS 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
341ssize_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
362ssize_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
388ssize_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
420ssize_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
459int 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
554int 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
586int 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
622int 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
697static 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
704static 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
711SMB_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
721const 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
766int 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
796char *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
899NTSTATUS check_reduced_name(connection_struct *conn, const char *fname)
900{
901 char *resolved_name = NULL;
902 bool allow_symlinks = true;
903 bool allow_widelinks = false;
904
905 DEBUG(3,("check_reduced_name [%s] [%s]\n", fname, conn->connectpath));
906
907 resolved_name = SMB_VFS_REALPATH(conn,fname);
908
909 if (!resolved_name) {
910 switch (errno) {
911 case ENOTDIR:
912 DEBUG(3,("check_reduced_name: Component not a "
913 "directory in getting realpath for "
914 "%s\n", fname));
915 return NT_STATUS_OBJECT_PATH_NOT_FOUND;
916 case ENOENT:
917 {
918 TALLOC_CTX *ctx = talloc_tos();
919 char *dir_name = NULL;
920 const char *last_component = NULL;
921 char *new_name = NULL;
922
923 /* Last component didn't exist.
924 Remove it and try and canonicalise
925 the directory name. */
926 if (!parent_dirname(ctx, fname,
927 &dir_name,
928 &last_component)) {
929 return NT_STATUS_NO_MEMORY;
930 }
931
932 resolved_name = SMB_VFS_REALPATH(conn,dir_name);
933 if (!resolved_name) {
934 NTSTATUS status = map_nt_error_from_unix(errno);
935
936 if (errno == ENOENT || errno == ENOTDIR) {
937 status = NT_STATUS_OBJECT_PATH_NOT_FOUND;
938 }
939
940 DEBUG(3,("check_reduce_name: "
941 "couldn't get realpath for "
942 "%s (%s)\n",
943 fname,
944 nt_errstr(status)));
945 return status;
946 }
947 new_name = talloc_asprintf(ctx,
948 "%s/%s",
949 resolved_name,
950 last_component);
951 if (!new_name) {
952 return NT_STATUS_NO_MEMORY;
953 }
954 SAFE_FREE(resolved_name);
955 resolved_name = SMB_STRDUP(new_name);
956 if (!resolved_name) {
957 return NT_STATUS_NO_MEMORY;
958 }
959 break;
960 }
961 default:
962 DEBUG(3,("check_reduced_name: couldn't get "
963 "realpath for %s\n", fname));
964 return map_nt_error_from_unix(errno);
965 }
966 }
967
968 DEBUG(10,("check_reduced_name realpath [%s] -> [%s]\n", fname,
969 resolved_name));
970
971 if (*resolved_name != '/') {
972 DEBUG(0,("check_reduced_name: realpath doesn't return "
973 "absolute paths !\n"));
974 SAFE_FREE(resolved_name);
975 return NT_STATUS_OBJECT_NAME_INVALID;
976 }
977
978 allow_widelinks = lp_widelinks(SNUM(conn));
979 allow_symlinks = lp_symlinks(SNUM(conn));
980
981 /* Common widelinks and symlinks checks. */
982 if (!allow_widelinks || !allow_symlinks) {
983 const char *conn_rootdir;
984 size_t rootdir_len;
985
986 conn_rootdir = SMB_VFS_CONNECTPATH(conn, fname);
987 if (conn_rootdir == NULL) {
988 DEBUG(2, ("check_reduced_name: Could not get "
989 "conn_rootdir\n"));
990 SAFE_FREE(resolved_name);
991 return NT_STATUS_ACCESS_DENIED;
992 }
993
994 rootdir_len = strlen(conn_rootdir);
995 if (strncmp(conn_rootdir, resolved_name,
996 rootdir_len) != 0) {
997 DEBUG(2, ("check_reduced_name: Bad access "
998 "attempt: %s is a symlink outside the "
999 "share path\n", fname));
1000 DEBUGADD(2, ("conn_rootdir =%s\n", conn_rootdir));
1001 DEBUGADD(2, ("resolved_name=%s\n", resolved_name));
1002 SAFE_FREE(resolved_name);
1003 return NT_STATUS_ACCESS_DENIED;
1004 }
1005
1006 /* Extra checks if all symlinks are disallowed. */
1007 if (!allow_symlinks) {
1008 /* fname can't have changed in resolved_path. */
1009 const char *p = &resolved_name[rootdir_len];
1010
1011 /* *p can be '\0' if fname was "." */
1012 if (*p == '\0' && ISDOT(fname)) {
1013 goto out;
1014 }
1015
1016 if (*p != '/') {
1017 DEBUG(2, ("check_reduced_name: logic error (%c) "
1018 "in resolved_name: %s\n",
1019 *p,
1020 fname));
1021 SAFE_FREE(resolved_name);
1022 return NT_STATUS_ACCESS_DENIED;
1023 }
1024
1025 p++;
1026 if (strcmp(fname, p)!=0) {
1027 DEBUG(2, ("check_reduced_name: Bad access "
1028 "attempt: %s is a symlink\n",
1029 fname));
1030 SAFE_FREE(resolved_name);
1031 return NT_STATUS_ACCESS_DENIED;
1032 }
1033 }
1034 }
1035
1036 out:
1037
1038 DEBUG(3,("check_reduced_name: %s reduced to %s\n", fname,
1039 resolved_name));
1040 SAFE_FREE(resolved_name);
1041 return NT_STATUS_OK;
1042}
1043
1044/**
1045 * XXX: This is temporary and there should be no callers of this once
1046 * smb_filename is plumbed through all path based operations.
1047 */
1048int vfs_stat_smb_fname(struct connection_struct *conn, const char *fname,
1049 SMB_STRUCT_STAT *psbuf)
1050{
1051 struct smb_filename *smb_fname = NULL;
1052 NTSTATUS status;
1053 int ret;
1054
1055 status = create_synthetic_smb_fname_split(talloc_tos(), fname, NULL,
1056 &smb_fname);
1057 if (!NT_STATUS_IS_OK(status)) {
1058 errno = map_errno_from_nt_status(status);
1059 return -1;
1060 }
1061
1062 if (lp_posix_pathnames()) {
1063 ret = SMB_VFS_LSTAT(conn, smb_fname);
1064 } else {
1065 ret = SMB_VFS_STAT(conn, smb_fname);
1066 }
1067
1068 if (ret != -1) {
1069 *psbuf = smb_fname->st;
1070 }
1071
1072 TALLOC_FREE(smb_fname);
1073 return ret;
1074}
1075
1076/**
1077 * XXX: This is temporary and there should be no callers of this once
1078 * smb_filename is plumbed through all path based operations.
1079 */
1080int vfs_lstat_smb_fname(struct connection_struct *conn, const char *fname,
1081 SMB_STRUCT_STAT *psbuf)
1082{
1083 struct smb_filename *smb_fname = NULL;
1084 NTSTATUS status;
1085 int ret;
1086
1087 status = create_synthetic_smb_fname_split(talloc_tos(), fname, NULL,
1088 &smb_fname);
1089 if (!NT_STATUS_IS_OK(status)) {
1090 errno = map_errno_from_nt_status(status);
1091 return -1;
1092 }
1093
1094 ret = SMB_VFS_LSTAT(conn, smb_fname);
1095 if (ret != -1) {
1096 *psbuf = smb_fname->st;
1097 }
1098
1099 TALLOC_FREE(smb_fname);
1100 return ret;
1101}
1102
1103/**
1104 * Ensure LSTAT is called for POSIX paths.
1105 */
1106
1107NTSTATUS vfs_stat_fsp(files_struct *fsp)
1108{
1109 int ret;
1110
1111 if(fsp->fh->fd == -1) {
1112 if (fsp->posix_open) {
1113 ret = SMB_VFS_LSTAT(fsp->conn, fsp->fsp_name);
1114 } else {
1115 ret = SMB_VFS_STAT(fsp->conn, fsp->fsp_name);
1116 }
1117 if (ret == -1) {
1118 return map_nt_error_from_unix(errno);
1119 }
1120 } else {
1121 if(SMB_VFS_FSTAT(fsp, &fsp->fsp_name->st) != 0) {
1122 return map_nt_error_from_unix(errno);
1123 }
1124 }
1125 return NT_STATUS_OK;
1126}
1127
1128/*
1129 generate a file_id from a stat structure
1130 */
1131struct file_id vfs_file_id_from_sbuf(connection_struct *conn, const SMB_STRUCT_STAT *sbuf)
1132{
1133 return SMB_VFS_FILE_ID_CREATE(conn, sbuf);
1134}
1135
1136int smb_vfs_call_connect(struct vfs_handle_struct *handle,
1137 const char *service, const char *user)
1138{
1139 VFS_FIND(connect_fn);
1140 return handle->fns->connect_fn(handle, service, user);
1141}
1142
1143void smb_vfs_call_disconnect(struct vfs_handle_struct *handle)
1144{
1145 VFS_FIND(disconnect);
1146 handle->fns->disconnect(handle);
1147}
1148
1149uint64_t smb_vfs_call_disk_free(struct vfs_handle_struct *handle,
1150 const char *path, bool small_query,
1151 uint64_t *bsize, uint64_t *dfree,
1152 uint64_t *dsize)
1153{
1154 VFS_FIND(disk_free);
1155 return handle->fns->disk_free(handle, path, small_query, bsize, dfree,
1156 dsize);
1157}
1158
1159int smb_vfs_call_get_quota(struct vfs_handle_struct *handle,
1160 enum SMB_QUOTA_TYPE qtype, unid_t id,
1161 SMB_DISK_QUOTA *qt)
1162{
1163 VFS_FIND(get_quota);
1164 return handle->fns->get_quota(handle, qtype, id, qt);
1165}
1166
1167int smb_vfs_call_set_quota(struct vfs_handle_struct *handle,
1168 enum SMB_QUOTA_TYPE qtype, unid_t id,
1169 SMB_DISK_QUOTA *qt)
1170{
1171 VFS_FIND(set_quota);
1172 return handle->fns->set_quota(handle, qtype, id, qt);
1173}
1174
1175int smb_vfs_call_get_shadow_copy_data(struct vfs_handle_struct *handle,
1176 struct files_struct *fsp,
1177 struct shadow_copy_data *shadow_copy_data,
1178 bool labels)
1179{
1180 VFS_FIND(get_shadow_copy_data);
1181 return handle->fns->get_shadow_copy_data(handle, fsp, shadow_copy_data,
1182 labels);
1183}
1184int smb_vfs_call_statvfs(struct vfs_handle_struct *handle, const char *path,
1185 struct vfs_statvfs_struct *statbuf)
1186{
1187 VFS_FIND(statvfs);
1188 return handle->fns->statvfs(handle, path, statbuf);
1189}
1190
1191uint32_t smb_vfs_call_fs_capabilities(struct vfs_handle_struct *handle,
1192 enum timestamp_set_resolution *p_ts_res)
1193{
1194 VFS_FIND(fs_capabilities);
1195 return handle->fns->fs_capabilities(handle, p_ts_res);
1196}
1197
1198SMB_STRUCT_DIR *smb_vfs_call_opendir(struct vfs_handle_struct *handle,
1199 const char *fname, const char *mask,
1200 uint32 attributes)
1201{
1202 VFS_FIND(opendir);
1203 return handle->fns->opendir(handle, fname, mask, attributes);
1204}
1205
1206SMB_STRUCT_DIR *smb_vfs_call_fdopendir(struct vfs_handle_struct *handle,
1207 struct files_struct *fsp,
1208 const char *mask,
1209 uint32 attributes)
1210{
1211 VFS_FIND(fdopendir);
1212 return handle->fns->fdopendir(handle, fsp, mask, attributes);
1213}
1214
1215SMB_STRUCT_DIRENT *smb_vfs_call_readdir(struct vfs_handle_struct *handle,
1216 SMB_STRUCT_DIR *dirp,
1217 SMB_STRUCT_STAT *sbuf)
1218{
1219 VFS_FIND(readdir);
1220 return handle->fns->readdir(handle, dirp, sbuf);
1221}
1222
1223void smb_vfs_call_seekdir(struct vfs_handle_struct *handle,
1224 SMB_STRUCT_DIR *dirp, long offset)
1225{
1226 VFS_FIND(seekdir);
1227 handle->fns->seekdir(handle, dirp, offset);
1228}
1229
1230long smb_vfs_call_telldir(struct vfs_handle_struct *handle,
1231 SMB_STRUCT_DIR *dirp)
1232{
1233 VFS_FIND(telldir);
1234 return handle->fns->telldir(handle, dirp);
1235}
1236
1237void smb_vfs_call_rewind_dir(struct vfs_handle_struct *handle,
1238 SMB_STRUCT_DIR *dirp)
1239{
1240 VFS_FIND(rewind_dir);
1241 handle->fns->rewind_dir(handle, dirp);
1242}
1243
1244int smb_vfs_call_mkdir(struct vfs_handle_struct *handle, const char *path,
1245 mode_t mode)
1246{
1247 VFS_FIND(mkdir);
1248 return handle->fns->mkdir(handle, path, mode);
1249}
1250
1251int smb_vfs_call_rmdir(struct vfs_handle_struct *handle, const char *path)
1252{
1253 VFS_FIND(rmdir);
1254 return handle->fns->rmdir(handle, path);
1255}
1256
1257int smb_vfs_call_closedir(struct vfs_handle_struct *handle,
1258 SMB_STRUCT_DIR *dir)
1259{
1260 VFS_FIND(closedir);
1261 return handle->fns->closedir(handle, dir);
1262}
1263
1264void smb_vfs_call_init_search_op(struct vfs_handle_struct *handle,
1265 SMB_STRUCT_DIR *dirp)
1266{
1267 VFS_FIND(init_search_op);
1268 handle->fns->init_search_op(handle, dirp);
1269}
1270
1271int smb_vfs_call_open(struct vfs_handle_struct *handle,
1272 struct smb_filename *smb_fname, struct files_struct *fsp,
1273 int flags, mode_t mode)
1274{
1275 VFS_FIND(open_fn);
1276 return handle->fns->open_fn(handle, smb_fname, fsp, flags, mode);
1277}
1278
1279NTSTATUS smb_vfs_call_create_file(struct vfs_handle_struct *handle,
1280 struct smb_request *req,
1281 uint16_t root_dir_fid,
1282 struct smb_filename *smb_fname,
1283 uint32_t access_mask,
1284 uint32_t share_access,
1285 uint32_t create_disposition,
1286 uint32_t create_options,
1287 uint32_t file_attributes,
1288 uint32_t oplock_request,
1289 uint64_t allocation_size,
1290 uint32_t private_flags,
1291 struct security_descriptor *sd,
1292 struct ea_list *ea_list,
1293 files_struct **result,
1294 int *pinfo)
1295{
1296 VFS_FIND(create_file);
1297 return handle->fns->create_file(
1298 handle, req, root_dir_fid, smb_fname, access_mask,
1299 share_access, create_disposition, create_options,
1300 file_attributes, oplock_request, allocation_size,
1301 private_flags, sd, ea_list,
1302 result, pinfo);
1303}
1304
1305int smb_vfs_call_close_fn(struct vfs_handle_struct *handle,
1306 struct files_struct *fsp)
1307{
1308 VFS_FIND(close_fn);
1309 return handle->fns->close_fn(handle, fsp);
1310}
1311
1312ssize_t smb_vfs_call_vfs_read(struct vfs_handle_struct *handle,
1313 struct files_struct *fsp, void *data, size_t n)
1314{
1315 VFS_FIND(vfs_read);
1316 return handle->fns->vfs_read(handle, fsp, data, n);
1317}
1318
1319ssize_t smb_vfs_call_pread(struct vfs_handle_struct *handle,
1320 struct files_struct *fsp, void *data, size_t n,
1321 SMB_OFF_T offset)
1322{
1323 VFS_FIND(pread);
1324 return handle->fns->pread(handle, fsp, data, n, offset);
1325}
1326
1327ssize_t smb_vfs_call_write(struct vfs_handle_struct *handle,
1328 struct files_struct *fsp, const void *data,
1329 size_t n)
1330{
1331 VFS_FIND(write);
1332 return handle->fns->write(handle, fsp, data, n);
1333}
1334
1335ssize_t smb_vfs_call_pwrite(struct vfs_handle_struct *handle,
1336 struct files_struct *fsp, const void *data,
1337 size_t n, SMB_OFF_T offset)
1338{
1339 VFS_FIND(pwrite);
1340 return handle->fns->pwrite(handle, fsp, data, n, offset);
1341}
1342
1343SMB_OFF_T smb_vfs_call_lseek(struct vfs_handle_struct *handle,
1344 struct files_struct *fsp, SMB_OFF_T offset,
1345 int whence)
1346{
1347 VFS_FIND(lseek);
1348 return handle->fns->lseek(handle, fsp, offset, whence);
1349}
1350
1351ssize_t smb_vfs_call_sendfile(struct vfs_handle_struct *handle, int tofd,
1352 files_struct *fromfsp, const DATA_BLOB *header,
1353 SMB_OFF_T offset, size_t count)
1354{
1355 VFS_FIND(sendfile);
1356 return handle->fns->sendfile(handle, tofd, fromfsp, header, offset,
1357 count);
1358}
1359
1360ssize_t smb_vfs_call_recvfile(struct vfs_handle_struct *handle, int fromfd,
1361 files_struct *tofsp, SMB_OFF_T offset,
1362 size_t count)
1363{
1364 VFS_FIND(recvfile);
1365 return handle->fns->recvfile(handle, fromfd, tofsp, offset, count);
1366}
1367
1368int smb_vfs_call_rename(struct vfs_handle_struct *handle,
1369 const struct smb_filename *smb_fname_src,
1370 const struct smb_filename *smb_fname_dst)
1371{
1372 VFS_FIND(rename);
1373 return handle->fns->rename(handle, smb_fname_src, smb_fname_dst);
1374}
1375
1376int smb_vfs_call_fsync(struct vfs_handle_struct *handle,
1377 struct files_struct *fsp)
1378{
1379 VFS_FIND(fsync);
1380 return handle->fns->fsync(handle, fsp);
1381}
1382
1383int smb_vfs_call_stat(struct vfs_handle_struct *handle,
1384 struct smb_filename *smb_fname)
1385{
1386 VFS_FIND(stat);
1387 return handle->fns->stat(handle, smb_fname);
1388}
1389
1390int smb_vfs_call_fstat(struct vfs_handle_struct *handle,
1391 struct files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1392{
1393 VFS_FIND(fstat);
1394 return handle->fns->fstat(handle, fsp, sbuf);
1395}
1396
1397int smb_vfs_call_lstat(struct vfs_handle_struct *handle,
1398 struct smb_filename *smb_filename)
1399{
1400 VFS_FIND(lstat);
1401 return handle->fns->lstat(handle, smb_filename);
1402}
1403
1404uint64_t smb_vfs_call_get_alloc_size(struct vfs_handle_struct *handle,
1405 struct files_struct *fsp,
1406 const SMB_STRUCT_STAT *sbuf)
1407{
1408 VFS_FIND(get_alloc_size);
1409 return handle->fns->get_alloc_size(handle, fsp, sbuf);
1410}
1411
1412int smb_vfs_call_unlink(struct vfs_handle_struct *handle,
1413 const struct smb_filename *smb_fname)
1414{
1415 VFS_FIND(unlink);
1416 return handle->fns->unlink(handle, smb_fname);
1417}
1418
1419int smb_vfs_call_chmod(struct vfs_handle_struct *handle, const char *path,
1420 mode_t mode)
1421{
1422 VFS_FIND(chmod);
1423 return handle->fns->chmod(handle, path, mode);
1424}
1425
1426int smb_vfs_call_fchmod(struct vfs_handle_struct *handle,
1427 struct files_struct *fsp, mode_t mode)
1428{
1429 VFS_FIND(fchmod);
1430 return handle->fns->fchmod(handle, fsp, mode);
1431}
1432
1433int smb_vfs_call_chown(struct vfs_handle_struct *handle, const char *path,
1434 uid_t uid, gid_t gid)
1435{
1436 VFS_FIND(chown);
1437 return handle->fns->chown(handle, path, uid, gid);
1438}
1439
1440int smb_vfs_call_fchown(struct vfs_handle_struct *handle,
1441 struct files_struct *fsp, uid_t uid, gid_t gid)
1442{
1443 VFS_FIND(fchown);
1444 return handle->fns->fchown(handle, fsp, uid, gid);
1445}
1446
1447int smb_vfs_call_lchown(struct vfs_handle_struct *handle, const char *path,
1448 uid_t uid, gid_t gid)
1449{
1450 VFS_FIND(lchown);
1451 return handle->fns->lchown(handle, path, uid, gid);
1452}
1453
1454NTSTATUS vfs_chown_fsp(files_struct *fsp, uid_t uid, gid_t gid)
1455{
1456 int ret;
1457 bool as_root = false;
1458 const char *path;
1459 char *saved_dir = NULL;
1460 char *parent_dir = NULL;
1461 NTSTATUS status;
1462
1463 if (fsp->fh->fd != -1) {
1464 /* Try fchown. */
1465 ret = SMB_VFS_FCHOWN(fsp, uid, gid);
1466 if (ret == 0) {
1467 return NT_STATUS_OK;
1468 }
1469 if (ret == -1 && errno != ENOSYS) {
1470 return map_nt_error_from_unix(errno);
1471 }
1472 }
1473
1474 as_root = (geteuid() == 0);
1475
1476 if (as_root) {
1477 /*
1478 * We are being asked to chown as root. Make
1479 * sure we chdir() into the path to pin it,
1480 * and always act using lchown to ensure we
1481 * don't deref any symbolic links.
1482 */
1483 const char *final_component = NULL;
1484 struct smb_filename local_fname;
1485
1486 saved_dir = vfs_GetWd(talloc_tos(),fsp->conn);
1487 if (!saved_dir) {
1488 status = map_nt_error_from_unix(errno);
1489 DEBUG(0,("vfs_chown_fsp: failed to get "
1490 "current working directory. Error was %s\n",
1491 strerror(errno)));
1492 return status;
1493 }
1494
1495 if (!parent_dirname(talloc_tos(),
1496 fsp->fsp_name->base_name,
1497 &parent_dir,
1498 &final_component)) {
1499 return NT_STATUS_NO_MEMORY;
1500 }
1501
1502 /* cd into the parent dir to pin it. */
1503 ret = SMB_VFS_CHDIR(fsp->conn, parent_dir);
1504 if (ret == -1) {
1505 return map_nt_error_from_unix(errno);
1506 }
1507
1508 ZERO_STRUCT(local_fname);
1509 local_fname.base_name = CONST_DISCARD(char *,final_component);
1510
1511 /* Must use lstat here. */
1512 ret = SMB_VFS_LSTAT(fsp->conn, &local_fname);
1513 if (ret == -1) {
1514 return map_nt_error_from_unix(errno);
1515 }
1516
1517 /* Ensure it matches the fsp stat. */
1518 if (!check_same_stat(&local_fname.st, &fsp->fsp_name->st)) {
1519 return NT_STATUS_ACCESS_DENIED;
1520 }
1521 path = final_component;
1522 } else {
1523 path = fsp->fsp_name->base_name;
1524 }
1525
1526 if (fsp->posix_open || as_root) {
1527 ret = SMB_VFS_LCHOWN(fsp->conn,
1528 path,
1529 uid, gid);
1530 } else {
1531 ret = SMB_VFS_CHOWN(fsp->conn,
1532 path,
1533 uid, gid);
1534 }
1535
1536 if (ret == 0) {
1537 status = NT_STATUS_OK;
1538 } else {
1539 status = map_nt_error_from_unix(errno);
1540 }
1541
1542 if (as_root) {
1543 vfs_ChDir(fsp->conn,saved_dir);
1544 TALLOC_FREE(saved_dir);
1545 TALLOC_FREE(parent_dir);
1546 }
1547 return status;
1548}
1549
1550int smb_vfs_call_chdir(struct vfs_handle_struct *handle, const char *path)
1551{
1552 VFS_FIND(chdir);
1553 return handle->fns->chdir(handle, path);
1554}
1555
1556char *smb_vfs_call_getwd(struct vfs_handle_struct *handle, char *buf)
1557{
1558 VFS_FIND(getwd);
1559 return handle->fns->getwd(handle, buf);
1560}
1561
1562int smb_vfs_call_ntimes(struct vfs_handle_struct *handle,
1563 const struct smb_filename *smb_fname,
1564 struct smb_file_time *ft)
1565{
1566 VFS_FIND(ntimes);
1567 return handle->fns->ntimes(handle, smb_fname, ft);
1568}
1569
1570int smb_vfs_call_ftruncate(struct vfs_handle_struct *handle,
1571 struct files_struct *fsp, SMB_OFF_T offset)
1572{
1573 VFS_FIND(ftruncate);
1574 return handle->fns->ftruncate(handle, fsp, offset);
1575}
1576
1577int smb_vfs_call_fallocate(struct vfs_handle_struct *handle,
1578 struct files_struct *fsp,
1579 enum vfs_fallocate_mode mode,
1580 SMB_OFF_T offset,
1581 SMB_OFF_T len)
1582{
1583 VFS_FIND(fallocate);
1584 return handle->fns->fallocate(handle, fsp, mode, offset, len);
1585}
1586
1587int smb_vfs_call_kernel_flock(struct vfs_handle_struct *handle,
1588 struct files_struct *fsp, uint32 share_mode,
1589 uint32_t access_mask)
1590{
1591 VFS_FIND(kernel_flock);
1592 return handle->fns->kernel_flock(handle, fsp, share_mode,
1593 access_mask);
1594}
1595
1596int smb_vfs_call_linux_setlease(struct vfs_handle_struct *handle,
1597 struct files_struct *fsp, int leasetype)
1598{
1599 VFS_FIND(linux_setlease);
1600 return handle->fns->linux_setlease(handle, fsp, leasetype);
1601}
1602
1603int smb_vfs_call_symlink(struct vfs_handle_struct *handle, const char *oldpath,
1604 const char *newpath)
1605{
1606 VFS_FIND(symlink);
1607 return handle->fns->symlink(handle, oldpath, newpath);
1608}
1609
1610int smb_vfs_call_vfs_readlink(struct vfs_handle_struct *handle,
1611 const char *path, char *buf, size_t bufsiz)
1612{
1613 VFS_FIND(vfs_readlink);
1614 return handle->fns->vfs_readlink(handle, path, buf, bufsiz);
1615}
1616
1617int smb_vfs_call_link(struct vfs_handle_struct *handle, const char *oldpath,
1618 const char *newpath)
1619{
1620 VFS_FIND(link);
1621 return handle->fns->link(handle, oldpath, newpath);
1622}
1623
1624int smb_vfs_call_mknod(struct vfs_handle_struct *handle, const char *path,
1625 mode_t mode, SMB_DEV_T dev)
1626{
1627 VFS_FIND(mknod);
1628 return handle->fns->mknod(handle, path, mode, dev);
1629}
1630
1631char *smb_vfs_call_realpath(struct vfs_handle_struct *handle, const char *path)
1632{
1633 VFS_FIND(realpath);
1634 return handle->fns->realpath(handle, path);
1635}
1636
1637NTSTATUS smb_vfs_call_notify_watch(struct vfs_handle_struct *handle,
1638 struct sys_notify_context *ctx,
1639 struct notify_entry *e,
1640 void (*callback)(struct sys_notify_context *ctx,
1641 void *private_data,
1642 struct notify_event *ev),
1643 void *private_data, void *handle_p)
1644{
1645 VFS_FIND(notify_watch);
1646 return handle->fns->notify_watch(handle, ctx, e, callback,
1647 private_data, handle_p);
1648}
1649
1650int smb_vfs_call_chflags(struct vfs_handle_struct *handle, const char *path,
1651 unsigned int flags)
1652{
1653 VFS_FIND(chflags);
1654 return handle->fns->chflags(handle, path, flags);
1655}
1656
1657struct file_id smb_vfs_call_file_id_create(struct vfs_handle_struct *handle,
1658 const SMB_STRUCT_STAT *sbuf)
1659{
1660 VFS_FIND(file_id_create);
1661 return handle->fns->file_id_create(handle, sbuf);
1662}
1663
1664NTSTATUS smb_vfs_call_streaminfo(struct vfs_handle_struct *handle,
1665 struct files_struct *fsp,
1666 const char *fname,
1667 TALLOC_CTX *mem_ctx,
1668 unsigned int *num_streams,
1669 struct stream_struct **streams)
1670{
1671 VFS_FIND(streaminfo);
1672 return handle->fns->streaminfo(handle, fsp, fname, mem_ctx,
1673 num_streams, streams);
1674}
1675
1676int smb_vfs_call_get_real_filename(struct vfs_handle_struct *handle,
1677 const char *path, const char *name,
1678 TALLOC_CTX *mem_ctx, char **found_name)
1679{
1680 VFS_FIND(get_real_filename);
1681 return handle->fns->get_real_filename(handle, path, name, mem_ctx,
1682 found_name);
1683}
1684
1685const char *smb_vfs_call_connectpath(struct vfs_handle_struct *handle,
1686 const char *filename)
1687{
1688 VFS_FIND(connectpath);
1689 return handle->fns->connectpath(handle, filename);
1690}
1691
1692bool smb_vfs_call_strict_lock(struct vfs_handle_struct *handle,
1693 struct files_struct *fsp,
1694 struct lock_struct *plock)
1695{
1696 VFS_FIND(strict_lock);
1697 return handle->fns->strict_lock(handle, fsp, plock);
1698}
1699
1700void smb_vfs_call_strict_unlock(struct vfs_handle_struct *handle,
1701 struct files_struct *fsp,
1702 struct lock_struct *plock)
1703{
1704 VFS_FIND(strict_unlock);
1705 handle->fns->strict_unlock(handle, fsp, plock);
1706}
1707
1708NTSTATUS smb_vfs_call_translate_name(struct vfs_handle_struct *handle,
1709 const char *name,
1710 enum vfs_translate_direction direction,
1711 TALLOC_CTX *mem_ctx,
1712 char **mapped_name)
1713{
1714 VFS_FIND(translate_name);
1715 return handle->fns->translate_name(handle, name, direction, mem_ctx,
1716 mapped_name);
1717}
1718
1719NTSTATUS smb_vfs_call_fget_nt_acl(struct vfs_handle_struct *handle,
1720 struct files_struct *fsp,
1721 uint32 security_info,
1722 struct security_descriptor **ppdesc)
1723{
1724 VFS_FIND(fget_nt_acl);
1725 return handle->fns->fget_nt_acl(handle, fsp, security_info,
1726 ppdesc);
1727}
1728
1729NTSTATUS smb_vfs_call_get_nt_acl(struct vfs_handle_struct *handle,
1730 const char *name,
1731 uint32 security_info,
1732 struct security_descriptor **ppdesc)
1733{
1734 VFS_FIND(get_nt_acl);
1735 return handle->fns->get_nt_acl(handle, name, security_info, ppdesc);
1736}
1737
1738NTSTATUS smb_vfs_call_fset_nt_acl(struct vfs_handle_struct *handle,
1739 struct files_struct *fsp,
1740 uint32 security_info_sent,
1741 const struct security_descriptor *psd)
1742{
1743 VFS_FIND(fset_nt_acl);
1744 return handle->fns->fset_nt_acl(handle, fsp, security_info_sent, psd);
1745}
1746
1747int smb_vfs_call_chmod_acl(struct vfs_handle_struct *handle, const char *name,
1748 mode_t mode)
1749{
1750 VFS_FIND(chmod_acl);
1751 return handle->fns->chmod_acl(handle, name, mode);
1752}
1753
1754int smb_vfs_call_fchmod_acl(struct vfs_handle_struct *handle,
1755 struct files_struct *fsp, mode_t mode)
1756{
1757 VFS_FIND(fchmod_acl);
1758 return handle->fns->fchmod_acl(handle, fsp, mode);
1759}
1760
1761int smb_vfs_call_sys_acl_get_entry(struct vfs_handle_struct *handle,
1762 SMB_ACL_T theacl, int entry_id,
1763 SMB_ACL_ENTRY_T *entry_p)
1764{
1765 VFS_FIND(sys_acl_get_entry);
1766 return handle->fns->sys_acl_get_entry(handle, theacl, entry_id,
1767 entry_p);
1768}
1769
1770int smb_vfs_call_sys_acl_get_tag_type(struct vfs_handle_struct *handle,
1771 SMB_ACL_ENTRY_T entry_d,
1772 SMB_ACL_TAG_T *tag_type_p)
1773{
1774 VFS_FIND(sys_acl_get_tag_type);
1775 return handle->fns->sys_acl_get_tag_type(handle, entry_d, tag_type_p);
1776}
1777
1778int smb_vfs_call_sys_acl_get_permset(struct vfs_handle_struct *handle,
1779 SMB_ACL_ENTRY_T entry_d,
1780 SMB_ACL_PERMSET_T *permset_p)
1781{
1782 VFS_FIND(sys_acl_get_permset);
1783 return handle->fns->sys_acl_get_permset(handle, entry_d, permset_p);
1784}
1785
1786void * smb_vfs_call_sys_acl_get_qualifier(struct vfs_handle_struct *handle,
1787 SMB_ACL_ENTRY_T entry_d)
1788{
1789 VFS_FIND(sys_acl_get_qualifier);
1790 return handle->fns->sys_acl_get_qualifier(handle, entry_d);
1791}
1792
1793SMB_ACL_T smb_vfs_call_sys_acl_get_file(struct vfs_handle_struct *handle,
1794 const char *path_p,
1795 SMB_ACL_TYPE_T type)
1796{
1797 VFS_FIND(sys_acl_get_file);
1798 return handle->fns->sys_acl_get_file(handle, path_p, type);
1799}
1800
1801SMB_ACL_T smb_vfs_call_sys_acl_get_fd(struct vfs_handle_struct *handle,
1802 struct files_struct *fsp)
1803{
1804 VFS_FIND(sys_acl_get_fd);
1805 return handle->fns->sys_acl_get_fd(handle, fsp);
1806}
1807
1808int smb_vfs_call_sys_acl_clear_perms(struct vfs_handle_struct *handle,
1809 SMB_ACL_PERMSET_T permset)
1810{
1811 VFS_FIND(sys_acl_clear_perms);
1812 return handle->fns->sys_acl_clear_perms(handle, permset);
1813}
1814
1815int smb_vfs_call_sys_acl_add_perm(struct vfs_handle_struct *handle,
1816 SMB_ACL_PERMSET_T permset,
1817 SMB_ACL_PERM_T perm)
1818{
1819 VFS_FIND(sys_acl_add_perm);
1820 return handle->fns->sys_acl_add_perm(handle, permset, perm);
1821}
1822
1823char * smb_vfs_call_sys_acl_to_text(struct vfs_handle_struct *handle,
1824 SMB_ACL_T theacl, ssize_t *plen)
1825{
1826 VFS_FIND(sys_acl_to_text);
1827 return handle->fns->sys_acl_to_text(handle, theacl, plen);
1828}
1829
1830SMB_ACL_T smb_vfs_call_sys_acl_init(struct vfs_handle_struct *handle,
1831 int count)
1832{
1833 VFS_FIND(sys_acl_init);
1834 return handle->fns->sys_acl_init(handle, count);
1835}
1836
1837int smb_vfs_call_sys_acl_create_entry(struct vfs_handle_struct *handle,
1838 SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry)
1839{
1840 VFS_FIND(sys_acl_create_entry);
1841 return handle->fns->sys_acl_create_entry(handle, pacl, pentry);
1842}
1843
1844int smb_vfs_call_sys_acl_set_tag_type(struct vfs_handle_struct *handle,
1845 SMB_ACL_ENTRY_T entry,
1846 SMB_ACL_TAG_T tagtype)
1847{
1848 VFS_FIND(sys_acl_set_tag_type);
1849 return handle->fns->sys_acl_set_tag_type(handle, entry, tagtype);
1850}
1851
1852int smb_vfs_call_sys_acl_set_qualifier(struct vfs_handle_struct *handle,
1853 SMB_ACL_ENTRY_T entry, void *qual)
1854{
1855 VFS_FIND(sys_acl_set_qualifier);
1856 return handle->fns->sys_acl_set_qualifier(handle, entry, qual);
1857}
1858
1859int smb_vfs_call_sys_acl_set_permset(struct vfs_handle_struct *handle,
1860 SMB_ACL_ENTRY_T entry,
1861 SMB_ACL_PERMSET_T permset)
1862{
1863 VFS_FIND(sys_acl_set_permset);
1864 return handle->fns->sys_acl_set_permset(handle, entry, permset);
1865}
1866
1867int smb_vfs_call_sys_acl_valid(struct vfs_handle_struct *handle,
1868 SMB_ACL_T theacl)
1869{
1870 VFS_FIND(sys_acl_valid);
1871 return handle->fns->sys_acl_valid(handle, theacl);
1872}
1873
1874int smb_vfs_call_sys_acl_set_file(struct vfs_handle_struct *handle,
1875 const char *name, SMB_ACL_TYPE_T acltype,
1876 SMB_ACL_T theacl)
1877{
1878 VFS_FIND(sys_acl_set_file);
1879 return handle->fns->sys_acl_set_file(handle, name, acltype, theacl);
1880}
1881
1882int smb_vfs_call_sys_acl_set_fd(struct vfs_handle_struct *handle,
1883 struct files_struct *fsp, SMB_ACL_T theacl)
1884{
1885 VFS_FIND(sys_acl_set_fd);
1886 return handle->fns->sys_acl_set_fd(handle, fsp, theacl);
1887}
1888
1889int smb_vfs_call_sys_acl_delete_def_file(struct vfs_handle_struct *handle,
1890 const char *path)
1891{
1892 VFS_FIND(sys_acl_delete_def_file);
1893 return handle->fns->sys_acl_delete_def_file(handle, path);
1894}
1895
1896int smb_vfs_call_sys_acl_get_perm(struct vfs_handle_struct *handle,
1897 SMB_ACL_PERMSET_T permset,
1898 SMB_ACL_PERM_T perm)
1899{
1900 VFS_FIND(sys_acl_get_perm);
1901 return handle->fns->sys_acl_get_perm(handle, permset, perm);
1902}
1903
1904int smb_vfs_call_sys_acl_free_text(struct vfs_handle_struct *handle,
1905 char *text)
1906{
1907 VFS_FIND(sys_acl_free_text);
1908 return handle->fns->sys_acl_free_text(handle, text);
1909}
1910
1911int smb_vfs_call_sys_acl_free_acl(struct vfs_handle_struct *handle,
1912 SMB_ACL_T posix_acl)
1913{
1914 VFS_FIND(sys_acl_free_acl);
1915 return handle->fns->sys_acl_free_acl(handle, posix_acl);
1916}
1917
1918int smb_vfs_call_sys_acl_free_qualifier(struct vfs_handle_struct *handle,
1919 void *qualifier, SMB_ACL_TAG_T tagtype)
1920{
1921 VFS_FIND(sys_acl_free_qualifier);
1922 return handle->fns->sys_acl_free_qualifier(handle, qualifier, tagtype);
1923}
1924
1925ssize_t smb_vfs_call_getxattr(struct vfs_handle_struct *handle,
1926 const char *path, const char *name, void *value,
1927 size_t size)
1928{
1929 VFS_FIND(getxattr);
1930 return handle->fns->getxattr(handle, path, name, value, size);
1931}
1932
1933ssize_t smb_vfs_call_lgetxattr(struct vfs_handle_struct *handle,
1934 const char *path, const char *name, void *value,
1935 size_t size)
1936{
1937 VFS_FIND(lgetxattr);
1938 return handle->fns->lgetxattr(handle, path, name, value, size);
1939}
1940
1941ssize_t smb_vfs_call_fgetxattr(struct vfs_handle_struct *handle,
1942 struct files_struct *fsp, const char *name,
1943 void *value, size_t size)
1944{
1945 VFS_FIND(fgetxattr);
1946 return handle->fns->fgetxattr(handle, fsp, name, value, size);
1947}
1948
1949ssize_t smb_vfs_call_listxattr(struct vfs_handle_struct *handle,
1950 const char *path, char *list, size_t size)
1951{
1952 VFS_FIND(listxattr);
1953 return handle->fns->listxattr(handle, path, list, size);
1954}
1955
1956ssize_t smb_vfs_call_llistxattr(struct vfs_handle_struct *handle,
1957 const char *path, char *list, size_t size)
1958{
1959 VFS_FIND(llistxattr);
1960 return handle->fns->llistxattr(handle, path, list, size);
1961}
1962
1963ssize_t smb_vfs_call_flistxattr(struct vfs_handle_struct *handle,
1964 struct files_struct *fsp, char *list,
1965 size_t size)
1966{
1967 VFS_FIND(flistxattr);
1968 return handle->fns->flistxattr(handle, fsp, list, size);
1969}
1970
1971int smb_vfs_call_removexattr(struct vfs_handle_struct *handle,
1972 const char *path, const char *name)
1973{
1974 VFS_FIND(removexattr);
1975 return handle->fns->removexattr(handle, path, name);
1976}
1977
1978int smb_vfs_call_lremovexattr(struct vfs_handle_struct *handle,
1979 const char *path, const char *name)
1980{
1981 VFS_FIND(lremovexattr);
1982 return handle->fns->lremovexattr(handle, path, name);
1983}
1984
1985int smb_vfs_call_fremovexattr(struct vfs_handle_struct *handle,
1986 struct files_struct *fsp, const char *name)
1987{
1988 VFS_FIND(fremovexattr);
1989 return handle->fns->fremovexattr(handle, fsp, name);
1990}
1991
1992int smb_vfs_call_setxattr(struct vfs_handle_struct *handle, const char *path,
1993 const char *name, const void *value, size_t size,
1994 int flags)
1995{
1996 VFS_FIND(setxattr);
1997 return handle->fns->setxattr(handle, path, name, value, size, flags);
1998}
1999
2000int smb_vfs_call_lsetxattr(struct vfs_handle_struct *handle, const char *path,
2001 const char *name, const void *value, size_t size,
2002 int flags)
2003{
2004 VFS_FIND(lsetxattr);
2005 return handle->fns->lsetxattr(handle, path, name, value, size, flags);
2006}
2007
2008int smb_vfs_call_fsetxattr(struct vfs_handle_struct *handle,
2009 struct files_struct *fsp, const char *name,
2010 const void *value, size_t size, int flags)
2011{
2012 VFS_FIND(fsetxattr);
2013 return handle->fns->fsetxattr(handle, fsp, name, value, size, flags);
2014}
2015
2016int smb_vfs_call_aio_read(struct vfs_handle_struct *handle,
2017 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
2018{
2019 VFS_FIND(aio_read);
2020 return handle->fns->aio_read(handle, fsp, aiocb);
2021}
2022
2023int smb_vfs_call_aio_write(struct vfs_handle_struct *handle,
2024 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
2025{
2026 VFS_FIND(aio_write);
2027 return handle->fns->aio_write(handle, fsp, aiocb);
2028}
2029
2030ssize_t smb_vfs_call_aio_return_fn(struct vfs_handle_struct *handle,
2031 struct files_struct *fsp,
2032 SMB_STRUCT_AIOCB *aiocb)
2033{
2034 VFS_FIND(aio_return_fn);
2035 return handle->fns->aio_return_fn(handle, fsp, aiocb);
2036}
2037
2038int smb_vfs_call_aio_cancel(struct vfs_handle_struct *handle,
2039 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
2040{
2041 VFS_FIND(aio_cancel);
2042 return handle->fns->aio_cancel(handle, fsp, aiocb);
2043}
2044
2045int smb_vfs_call_aio_error_fn(struct vfs_handle_struct *handle,
2046 struct files_struct *fsp,
2047 SMB_STRUCT_AIOCB *aiocb)
2048{
2049 VFS_FIND(aio_error_fn);
2050 return handle->fns->aio_error_fn(handle, fsp, aiocb);
2051}
2052
2053int smb_vfs_call_aio_fsync(struct vfs_handle_struct *handle,
2054 struct files_struct *fsp, int op,
2055 SMB_STRUCT_AIOCB *aiocb)
2056{
2057 VFS_FIND(aio_fsync);
2058 return handle->fns->aio_fsync(handle, fsp, op, aiocb);
2059}
2060
2061int smb_vfs_call_aio_suspend(struct vfs_handle_struct *handle,
2062 struct files_struct *fsp,
2063 const SMB_STRUCT_AIOCB * const aiocb[], int n,
2064 const struct timespec *timeout)
2065{
2066 VFS_FIND(aio_suspend);
2067 return handle->fns->aio_suspend(handle, fsp, aiocb, n, timeout);
2068}
2069
2070bool smb_vfs_call_aio_force(struct vfs_handle_struct *handle,
2071 struct files_struct *fsp)
2072{
2073 VFS_FIND(aio_force);
2074 return handle->fns->aio_force(handle, fsp);
2075}
2076
2077bool smb_vfs_call_is_offline(struct vfs_handle_struct *handle,
2078 const struct smb_filename *fname,
2079 SMB_STRUCT_STAT *sbuf)
2080{
2081 VFS_FIND(is_offline);
2082 return handle->fns->is_offline(handle, fname, sbuf);
2083}
2084
2085int smb_vfs_call_set_offline(struct vfs_handle_struct *handle,
2086 const struct smb_filename *fname)
2087{
2088 VFS_FIND(set_offline);
2089 return handle->fns->set_offline(handle, fname);
2090}
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