source: branches/samba-3.5.x/source3/smbd/vfs.c@ 736

Last change on this file since 736 was 596, checked in by Herwig Bauernfeind, 14 years ago

Samba 3.5: Update trunk to 3.5.8
File size: 53.0 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 "smbd/globals.h"
28
29#undef DBGC_CLASS
30#define DBGC_CLASS DBGC_VFS
31
32static_decl_vfs;
33
34struct vfs_init_function_entry {
35 char *name;
36 struct vfs_init_function_entry *prev, *next;
37 const struct vfs_fn_pointers *fns;
38};
39
40/****************************************************************************
41 maintain the list of available backends
42****************************************************************************/
43
44static struct vfs_init_function_entry *vfs_find_backend_entry(const char *name)
45{
46 struct vfs_init_function_entry *entry = backends;
47
48 DEBUG(10, ("vfs_find_backend_entry called for %s\n", name));
49
50 while(entry) {
51 if (strcmp(entry->name, name)==0) return entry;
52 entry = entry->next;
53 }
54
55 return NULL;
56}
57
58NTSTATUS smb_register_vfs(int version, const char *name,
59 const struct vfs_fn_pointers *fns)
60{
61 struct vfs_init_function_entry *entry = backends;
62
63 if ((version != SMB_VFS_INTERFACE_VERSION)) {
64 DEBUG(0, ("Failed to register vfs module.\n"
65 "The module was compiled against SMB_VFS_INTERFACE_VERSION %d,\n"
66 "current SMB_VFS_INTERFACE_VERSION is %d.\n"
67 "Please recompile against the current Samba Version!\n",
68 version, SMB_VFS_INTERFACE_VERSION));
69 return NT_STATUS_OBJECT_TYPE_MISMATCH;
70 }
71
72 if (!name || !name[0]) {
73 DEBUG(0,("smb_register_vfs() called with NULL pointer or empty name!\n"));
74 return NT_STATUS_INVALID_PARAMETER;
75 }
76
77 if (vfs_find_backend_entry(name)) {
78 DEBUG(0,("VFS module %s already loaded!\n", name));
79 return NT_STATUS_OBJECT_NAME_COLLISION;
80 }
81
82 entry = SMB_XMALLOC_P(struct vfs_init_function_entry);
83 entry->name = smb_xstrdup(name);
84 entry->fns = fns;
85
86 DLIST_ADD(backends, entry);
87 DEBUG(5, ("Successfully added vfs backend '%s'\n", name));
88 return NT_STATUS_OK;
89}
90
91/****************************************************************************
92 initialise default vfs hooks
93****************************************************************************/
94
95static void vfs_init_default(connection_struct *conn)
96{
97 DEBUG(3, ("Initialising default vfs hooks\n"));
98 vfs_init_custom(conn, DEFAULT_VFS_MODULE_NAME);
99}
100
101/****************************************************************************
102 initialise custom vfs hooks
103 ****************************************************************************/
104
105bool vfs_init_custom(connection_struct *conn, const char *vfs_object)
106{
107 char *module_path = NULL;
108 char *module_name = NULL;
109 char *module_param = NULL, *p;
110 vfs_handle_struct *handle;
111 const struct vfs_init_function_entry *entry;
112
113 if (!conn||!vfs_object||!vfs_object[0]) {
114 DEBUG(0,("vfs_init_custon() called with NULL pointer or emtpy vfs_object!\n"));
115 return False;
116 }
117
118 if(!backends) {
119 static_init_vfs;
120 }
121
122 DEBUG(3, ("Initialising custom vfs hooks from [%s]\n", vfs_object));
123
124 module_path = smb_xstrdup(vfs_object);
125
126 p = strchr_m(module_path, ':');
127
128 if (p) {
129 *p = 0;
130 module_param = p+1;
131 trim_char(module_param, ' ', ' ');
132 }
133
134 trim_char(module_path, ' ', ' ');
135
136 module_name = smb_xstrdup(module_path);
137
138 if ((module_name[0] == '/') &&
139 (strcmp(module_path, DEFAULT_VFS_MODULE_NAME) != 0)) {
140
141 /*
142 * Extract the module name from the path. Just use the base
143 * name of the last path component.
144 */
145
146 SAFE_FREE(module_name);
147 module_name = smb_xstrdup(strrchr_m(module_path, '/')+1);
148
149 p = strchr_m(module_name, '.');
150
151 if (p != NULL) {
152 *p = '\0';
153 }
154 }
155
156 /* First, try to load the module with the new module system */
157 entry = vfs_find_backend_entry(module_name);
158 if (!entry) {
159 NTSTATUS status;
160
161 DEBUG(5, ("vfs module [%s] not loaded - trying to load...\n",
162 vfs_object));
163
164 status = smb_probe_module("vfs", module_path);
165 if (!NT_STATUS_IS_OK(status)) {
166 DEBUG(0, ("error probing vfs module '%s': %s\n",
167 module_path, nt_errstr(status)));
168 goto fail;
169 }
170
171 entry = vfs_find_backend_entry(module_name);
172 if (!entry) {
173 DEBUG(0,("Can't find a vfs module [%s]\n",vfs_object));
174 goto fail;
175 }
176 }
177
178 DEBUGADD(5,("Successfully loaded vfs module [%s] with the new modules system\n", vfs_object));
179
180 handle = TALLOC_ZERO_P(conn, vfs_handle_struct);
181 if (!handle) {
182 DEBUG(0,("TALLOC_ZERO() failed!\n"));
183 goto fail;
184 }
185 handle->conn = conn;
186 handle->fns = entry->fns;
187 if (module_param) {
188 handle->param = talloc_strdup(conn, module_param);
189 }
190 DLIST_ADD(conn->vfs_handles, handle);
191
192 SAFE_FREE(module_path);
193 SAFE_FREE(module_name);
194 return True;
195
196 fail:
197 SAFE_FREE(module_path);
198 SAFE_FREE(module_name);
199 return False;
200}
201
202/*****************************************************************
203 Allow VFS modules to extend files_struct with VFS-specific state.
204 This will be ok for small numbers of extensions, but might need to
205 be refactored if it becomes more widely used.
206******************************************************************/
207
208#define EXT_DATA_AREA(e) ((uint8 *)(e) + sizeof(struct vfs_fsp_data))
209
210void *vfs_add_fsp_extension_notype(vfs_handle_struct *handle,
211 files_struct *fsp, size_t ext_size,
212 void (*destroy_fn)(void *p_data))
213{
214 struct vfs_fsp_data *ext;
215 void * ext_data;
216
217 /* Prevent VFS modules adding multiple extensions. */
218 if ((ext_data = vfs_fetch_fsp_extension(handle, fsp))) {
219 return ext_data;
220 }
221
222 ext = (struct vfs_fsp_data *)TALLOC_ZERO(
223 handle->conn, sizeof(struct vfs_fsp_data) + ext_size);
224 if (ext == NULL) {
225 return NULL;
226 }
227
228 ext->owner = handle;
229 ext->next = fsp->vfs_extension;
230 ext->destroy = destroy_fn;
231 fsp->vfs_extension = ext;
232 return EXT_DATA_AREA(ext);
233}
234
235void vfs_remove_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
236{
237 struct vfs_fsp_data *curr;
238 struct vfs_fsp_data *prev;
239
240 for (curr = fsp->vfs_extension, prev = NULL;
241 curr;
242 prev = curr, curr = curr->next) {
243 if (curr->owner == handle) {
244 if (prev) {
245 prev->next = curr->next;
246 } else {
247 fsp->vfs_extension = curr->next;
248 }
249 if (curr->destroy) {
250 curr->destroy(EXT_DATA_AREA(curr));
251 }
252 TALLOC_FREE(curr);
253 return;
254 }
255 }
256}
257
258void *vfs_memctx_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
259{
260 struct vfs_fsp_data *head;
261
262 for (head = fsp->vfs_extension; head; head = head->next) {
263 if (head->owner == handle) {
264 return head;
265 }
266 }
267
268 return NULL;
269}
270
271void *vfs_fetch_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
272{
273 struct vfs_fsp_data *head;
274
275 head = (struct vfs_fsp_data *)vfs_memctx_fsp_extension(handle, fsp);
276 if (head != NULL) {
277 return EXT_DATA_AREA(head);
278 }
279
280 return NULL;
281}
282
283#undef EXT_DATA_AREA
284
285/*****************************************************************
286 Generic VFS init.
287******************************************************************/
288
289bool smbd_vfs_init(connection_struct *conn)
290{
291 const char **vfs_objects;
292 unsigned int i = 0;
293 int j = 0;
294
295 /* Normal share - initialise with disk access functions */
296 vfs_init_default(conn);
297 vfs_objects = lp_vfs_objects(SNUM(conn));
298
299 /* Override VFS functions if 'vfs object' was not specified*/
300 if (!vfs_objects || !vfs_objects[0])
301 return True;
302
303 for (i=0; vfs_objects[i] ;) {
304 i++;
305 }
306
307 for (j=i-1; j >= 0; j--) {
308 if (!vfs_init_custom(conn, vfs_objects[j])) {
309 DEBUG(0, ("smbd_vfs_init: vfs_init_custom failed for %s\n", vfs_objects[j]));
310 return False;
311 }
312 }
313 return True;
314}
315
316/*******************************************************************
317 Check if a file exists in the vfs.
318********************************************************************/
319
320NTSTATUS vfs_file_exist(connection_struct *conn, struct smb_filename *smb_fname)
321{
322 /* Only return OK if stat was successful and S_ISREG */
323 if ((SMB_VFS_STAT(conn, smb_fname) != -1) &&
324 S_ISREG(smb_fname->st.st_ex_mode)) {
325 return NT_STATUS_OK;
326 }
327
328 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
329}
330
331/****************************************************************************
332 Read data from fsp on the vfs. (note: EINTR re-read differs from vfs_write_data)
333****************************************************************************/
334
335ssize_t vfs_read_data(files_struct *fsp, char *buf, size_t byte_count)
336{
337 size_t total=0;
338
339 while (total < byte_count)
340 {
341 ssize_t ret = SMB_VFS_READ(fsp, buf + total,
342 byte_count - total);
343
344 if (ret == 0) return total;
345 if (ret == -1) {
346 if (errno == EINTR)
347 continue;
348 else
349 return -1;
350 }
351 total += ret;
352 }
353 return (ssize_t)total;
354}
355
356ssize_t vfs_pread_data(files_struct *fsp, char *buf,
357 size_t byte_count, SMB_OFF_T offset)
358{
359 size_t total=0;
360
361 while (total < byte_count)
362 {
363 ssize_t ret = SMB_VFS_PREAD(fsp, buf + total,
364 byte_count - total, offset + total);
365
366 if (ret == 0) return total;
367 if (ret == -1) {
368 if (errno == EINTR)
369 continue;
370 else
371 return -1;
372 }
373 total += ret;
374 }
375 return (ssize_t)total;
376}
377
378/****************************************************************************
379 Write data to a fd on the vfs.
380****************************************************************************/
381
382ssize_t vfs_write_data(struct smb_request *req,
383 files_struct *fsp,
384 const char *buffer,
385 size_t N)
386{
387 size_t total=0;
388 ssize_t ret;
389
390 if (req && req->unread_bytes) {
391 SMB_ASSERT(req->unread_bytes == N);
392 /* VFS_RECVFILE must drain the socket
393 * before returning. */
394 req->unread_bytes = 0;
395 return SMB_VFS_RECVFILE(smbd_server_fd(),
396 fsp,
397 (SMB_OFF_T)-1,
398 N);
399 }
400
401 while (total < N) {
402 ret = SMB_VFS_WRITE(fsp, buffer + total, N - total);
403
404 if (ret == -1)
405 return -1;
406 if (ret == 0)
407 return total;
408
409 total += ret;
410 }
411 return (ssize_t)total;
412}
413
414ssize_t vfs_pwrite_data(struct smb_request *req,
415 files_struct *fsp,
416 const char *buffer,
417 size_t N,
418 SMB_OFF_T offset)
419{
420 size_t total=0;
421 ssize_t ret;
422
423 if (req && req->unread_bytes) {
424 SMB_ASSERT(req->unread_bytes == N);
425 /* VFS_RECVFILE must drain the socket
426 * before returning. */
427 req->unread_bytes = 0;
428 return SMB_VFS_RECVFILE(smbd_server_fd(),
429 fsp,
430 offset,
431 N);
432 }
433
434 while (total < N) {
435 ret = SMB_VFS_PWRITE(fsp, buffer + total, N - total,
436 offset + total);
437
438 if (ret == -1)
439 return -1;
440 if (ret == 0)
441 return total;
442
443 total += ret;
444 }
445 return (ssize_t)total;
446}
447/****************************************************************************
448 An allocate file space call using the vfs interface.
449 Allocates space for a file from a filedescriptor.
450 Returns 0 on success, -1 on failure.
451****************************************************************************/
452
453int vfs_allocate_file_space(files_struct *fsp, uint64_t len)
454{
455 int ret;
456 SMB_STRUCT_STAT st;
457 connection_struct *conn = fsp->conn;
458 uint64_t space_avail;
459 uint64_t bsize,dfree,dsize;
460
461 /*
462 * Actually try and commit the space on disk....
463 */
464
465 DEBUG(10,("vfs_allocate_file_space: file %s, len %.0f\n",
466 fsp_str_dbg(fsp), (double)len));
467
468 if (((SMB_OFF_T)len) < 0) {
469 DEBUG(0,("vfs_allocate_file_space: %s negative len "
470 "requested.\n", fsp_str_dbg(fsp)));
471 errno = EINVAL;
472 return -1;
473 }
474
475 ret = SMB_VFS_FSTAT(fsp, &st);
476 if (ret == -1)
477 return ret;
478
479 if (len == (uint64_t)st.st_ex_size)
480 return 0;
481
482 if (len < (uint64_t)st.st_ex_size) {
483 /* Shrink - use ftruncate. */
484
485 DEBUG(10,("vfs_allocate_file_space: file %s, shrink. Current "
486 "size %.0f\n", fsp_str_dbg(fsp),
487 (double)st.st_ex_size));
488
489 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_ALLOC_SHRINK);
490
491 flush_write_cache(fsp, SIZECHANGE_FLUSH);
492 if ((ret = SMB_VFS_FTRUNCATE(fsp, (SMB_OFF_T)len)) != -1) {
493 set_filelen_write_cache(fsp, len);
494 }
495
496 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_ALLOC_SHRINK);
497
498 return ret;
499 }
500
501 /* Grow - we need to test if we have enough space. */
502
503 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_ALLOC_GROW);
504 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_ALLOC_GROW);
505
506 if (!lp_strict_allocate(SNUM(fsp->conn)))
507 return 0;
508
509 len -= st.st_ex_size;
510 len /= 1024; /* Len is now number of 1k blocks needed. */
511 space_avail = get_dfree_info(conn, fsp->fsp_name->base_name, false,
512 &bsize, &dfree, &dsize);
513 if (space_avail == (uint64_t)-1) {
514 return -1;
515 }
516
517 DEBUG(10,("vfs_allocate_file_space: file %s, grow. Current size %.0f, "
518 "needed blocks = %.0f, space avail = %.0f\n",
519 fsp_str_dbg(fsp), (double)st.st_ex_size, (double)len,
520 (double)space_avail));
521
522 if (len > space_avail) {
523 errno = ENOSPC;
524 return -1;
525 }
526
527 return 0;
528}
529
530/****************************************************************************
531 A vfs set_filelen call.
532 set the length of a file from a filedescriptor.
533 Returns 0 on success, -1 on failure.
534****************************************************************************/
535
536int vfs_set_filelen(files_struct *fsp, SMB_OFF_T len)
537{
538 int ret;
539
540 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_SET_FILE_LEN);
541
542 DEBUG(10,("vfs_set_filelen: ftruncate %s to len %.0f\n",
543 fsp_str_dbg(fsp), (double)len));
544 flush_write_cache(fsp, SIZECHANGE_FLUSH);
545 if ((ret = SMB_VFS_FTRUNCATE(fsp, len)) != -1) {
546 set_filelen_write_cache(fsp, len);
547 notify_fname(fsp->conn, NOTIFY_ACTION_MODIFIED,
548 FILE_NOTIFY_CHANGE_SIZE
549 | FILE_NOTIFY_CHANGE_ATTRIBUTES,
550 fsp->fsp_name->base_name);
551 }
552
553 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_SET_FILE_LEN);
554
555 return ret;
556}
557
558/****************************************************************************
559 A vfs fill sparse call.
560 Writes zeros from the end of file to len, if len is greater than EOF.
561 Used only by strict_sync.
562 Returns 0 on success, -1 on failure.
563****************************************************************************/
564
565#define SPARSE_BUF_WRITE_SIZE (32*1024)
566
567int vfs_fill_sparse(files_struct *fsp, SMB_OFF_T len)
568{
569 int ret;
570 SMB_STRUCT_STAT st;
571 SMB_OFF_T offset;
572 size_t total;
573 size_t num_to_write;
574 ssize_t pwrite_ret;
575
576 ret = SMB_VFS_FSTAT(fsp, &st);
577 if (ret == -1) {
578 return ret;
579 }
580
581 if (len <= st.st_ex_size) {
582 return 0;
583 }
584
585#ifdef S_ISFIFO
586 if (S_ISFIFO(st.st_ex_mode)) {
587 return 0;
588 }
589#endif
590
591 DEBUG(10,("vfs_fill_sparse: write zeros in file %s from len %.0f to "
592 "len %.0f (%.0f bytes)\n", fsp_str_dbg(fsp),
593 (double)st.st_ex_size, (double)len,
594 (double)(len - st.st_ex_size)));
595
596 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_FILL_SPARSE);
597
598 flush_write_cache(fsp, SIZECHANGE_FLUSH);
599
600
601 offset = st.st_ex_size;
602 num_to_write = len - st.st_ex_size;
603
604 /* Only do this on non-stream file handles. */
605 if (fsp->base_fsp == NULL) {
606 /* for allocation try posix_fallocate first. This can fail on some
607 * platforms e.g. when the filesystem doesn't support it and no
608 * emulation is being done by the libc (like on AIX with JFS1). In that
609 * case we do our own emulation. posix_fallocate implementations can
610 * return ENOTSUP or EINVAL in cases like that. */
611 ret = sys_posix_fallocate(fsp->fh->fd, offset, num_to_write);
612 if (ret == ENOSPC) {
613 errno = ENOSPC;
614 ret = -1;
615 goto out;
616 }
617 if (ret == 0) {
618 set_filelen_write_cache(fsp, len);
619 goto out;
620 }
621
622 DEBUG(10,("vfs_fill_sparse: sys_posix_fallocate failed with "
623 "error %d. Falling back to slow manual allocation\n", ret));
624 }
625
626 if (!sparse_buf) {
627 sparse_buf = SMB_CALLOC_ARRAY(char, SPARSE_BUF_WRITE_SIZE);
628 if (!sparse_buf) {
629 errno = ENOMEM;
630 ret = -1;
631 goto out;
632 }
633 }
634
635 total = 0;
636
637 while (total < num_to_write) {
638 size_t curr_write_size = MIN(SPARSE_BUF_WRITE_SIZE, (num_to_write - total));
639
640 pwrite_ret = SMB_VFS_PWRITE(fsp, sparse_buf, curr_write_size, offset + total);
641 if (pwrite_ret == -1) {
642 DEBUG(10,("vfs_fill_sparse: SMB_VFS_PWRITE for file "
643 "%s failed with error %s\n",
644 fsp_str_dbg(fsp), strerror(errno)));
645 ret = -1;
646 goto out;
647 }
648 if (pwrite_ret == 0) {
649 ret = 0;
650 goto out;
651 }
652
653 total += pwrite_ret;
654 }
655
656 set_filelen_write_cache(fsp, len);
657
658 ret = 0;
659 out:
660 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_FILL_SPARSE);
661 return ret;
662}
663
664/****************************************************************************
665 Transfer some data (n bytes) between two file_struct's.
666****************************************************************************/
667
668static ssize_t vfs_read_fn(void *file, void *buf, size_t len)
669{
670 struct files_struct *fsp = (struct files_struct *)file;
671
672 return SMB_VFS_READ(fsp, buf, len);
673}
674
675static ssize_t vfs_write_fn(void *file, const void *buf, size_t len)
676{
677 struct files_struct *fsp = (struct files_struct *)file;
678
679 return SMB_VFS_WRITE(fsp, buf, len);
680}
681
682SMB_OFF_T vfs_transfer_file(files_struct *in, files_struct *out, SMB_OFF_T n)
683{
684 return transfer_file_internal((void *)in, (void *)out, n,
685 vfs_read_fn, vfs_write_fn);
686}
687
688/*******************************************************************
689 A vfs_readdir wrapper which just returns the file name.
690********************************************************************/
691
692const char *vfs_readdirname(connection_struct *conn, void *p,
693 SMB_STRUCT_STAT *sbuf, char **talloced)
694{
695 SMB_STRUCT_DIRENT *ptr= NULL;
696 const char *dname;
697 char *translated;
698 NTSTATUS status;
699
700 if (!p)
701 return(NULL);
702
703 ptr = SMB_VFS_READDIR(conn, (DIR *)p, sbuf);
704 if (!ptr)
705 return(NULL);
706
707 dname = ptr->d_name;
708
709
710#ifdef NEXT2
711 if (telldir(p) < 0)
712 return(NULL);
713#endif
714
715#ifdef HAVE_BROKEN_READDIR_NAME
716 /* using /usr/ucb/cc is BAD */
717 dname = dname - 2;
718#endif
719
720 status = SMB_VFS_TRANSLATE_NAME(conn, dname, vfs_translate_to_windows,
721 talloc_tos(), &translated);
722 if (NT_STATUS_EQUAL(status, NT_STATUS_NONE_MAPPED)) {
723 *talloced = NULL;
724 return dname;
725 }
726 *talloced = translated;
727 if (!NT_STATUS_IS_OK(status)) {
728 return NULL;
729 }
730 return translated;
731}
732
733/*******************************************************************
734 A wrapper for vfs_chdir().
735********************************************************************/
736
737int vfs_ChDir(connection_struct *conn, const char *path)
738{
739 int res;
740
741 if (!LastDir) {
742 LastDir = SMB_STRDUP("");
743 }
744
745 if (strcsequal(path,"."))
746 return(0);
747
748#ifdef __OS2__
749 if ((*path == '/' || *path == '\\' || (*path && path[1] == ':')) && strcsequal(LastDir,path))
750#else
751 if (*path == '/' && strcsequal(LastDir,path))
752#endif
753 return(0);
754
755 DEBUG(4,("vfs_ChDir to %s\n",path));
756
757 res = SMB_VFS_CHDIR(conn,path);
758 if (!res) {
759 SAFE_FREE(LastDir);
760 LastDir = SMB_STRDUP(path);
761 }
762 return(res);
763}
764
765/*******************************************************************
766 Return the absolute current directory path - given a UNIX pathname.
767 Note that this path is returned in DOS format, not UNIX
768 format. Note this can be called with conn == NULL.
769********************************************************************/
770
771char *vfs_GetWd(TALLOC_CTX *ctx, connection_struct *conn)
772{
773 char s[PATH_MAX+1];
774 char *result = NULL;
775 DATA_BLOB cache_value;
776 struct file_id key;
777 struct smb_filename *smb_fname_dot = NULL;
778 struct smb_filename *smb_fname_full = NULL;
779 NTSTATUS status;
780
781 *s = 0;
782
783 if (!lp_getwd_cache()) {
784 goto nocache;
785 }
786
787 status = create_synthetic_smb_fname(ctx, ".", NULL, NULL,
788 &smb_fname_dot);
789 if (!NT_STATUS_IS_OK(status)) {
790 errno = map_errno_from_nt_status(status);
791 goto out;
792 }
793
794 if (SMB_VFS_STAT(conn, smb_fname_dot) == -1) {
795 /*
796 * Known to fail for root: the directory may be NFS-mounted
797 * and exported with root_squash (so has no root access).
798 */
799 DEBUG(1,("vfs_GetWd: couldn't stat \".\" error %s "
800 "(NFS problem ?)\n", strerror(errno) ));
801 goto nocache;
802 }
803
804 key = vfs_file_id_from_sbuf(conn, &smb_fname_dot->st);
805
806 if (!memcache_lookup(smbd_memcache(), GETWD_CACHE,
807 data_blob_const(&key, sizeof(key)),
808 &cache_value)) {
809 goto nocache;
810 }
811
812 SMB_ASSERT((cache_value.length > 0)
813 && (cache_value.data[cache_value.length-1] == '\0'));
814
815 status = create_synthetic_smb_fname(ctx, (char *)cache_value.data,
816 NULL, NULL, &smb_fname_full);
817 if (!NT_STATUS_IS_OK(status)) {
818 errno = map_errno_from_nt_status(status);
819 goto out;
820 }
821
822 if ((SMB_VFS_STAT(conn, smb_fname_full) == 0) &&
823 (smb_fname_dot->st.st_ex_dev == smb_fname_full->st.st_ex_dev) &&
824 (smb_fname_dot->st.st_ex_ino == smb_fname_full->st.st_ex_ino) &&
825 (S_ISDIR(smb_fname_dot->st.st_ex_mode))) {
826 /*
827 * Ok, we're done
828 */
829 result = talloc_strdup(ctx, smb_fname_full->base_name);
830 if (result == NULL) {
831 errno = ENOMEM;
832 }
833 goto out;
834 }
835
836 nocache:
837
838 /*
839 * We don't have the information to hand so rely on traditional
840 * methods. The very slow getcwd, which spawns a process on some
841 * systems, or the not quite so bad getwd.
842 */
843
844 if (!SMB_VFS_GETWD(conn,s)) {
845 DEBUG(0, ("vfs_GetWd: SMB_VFS_GETWD call failed: %s\n",
846 strerror(errno)));
847 goto out;
848 }
849
850 if (lp_getwd_cache() && VALID_STAT(smb_fname_dot->st)) {
851 key = vfs_file_id_from_sbuf(conn, &smb_fname_dot->st);
852
853 memcache_add(smbd_memcache(), GETWD_CACHE,
854 data_blob_const(&key, sizeof(key)),
855 data_blob_const(s, strlen(s)+1));
856 }
857
858 result = talloc_strdup(ctx, s);
859 if (result == NULL) {
860 errno = ENOMEM;
861 }
862
863 out:
864 TALLOC_FREE(smb_fname_dot);
865 TALLOC_FREE(smb_fname_full);
866 return result;
867}
868
869/*******************************************************************
870 Reduce a file name, removing .. elements and checking that
871 it is below dir in the heirachy. This uses realpath.
872********************************************************************/
873
874NTSTATUS check_reduced_name(connection_struct *conn, const char *fname)
875{
876#ifdef REALPATH_TAKES_NULL
877 bool free_resolved_name = True;
878#else
879 char resolved_name_buf[PATH_MAX+1];
880 bool free_resolved_name = False;
881#endif
882 char *resolved_name = NULL;
883 char *p = NULL;
884
885 DEBUG(3,("check_reduced_name [%s] [%s]\n", fname, conn->connectpath));
886
887#ifdef REALPATH_TAKES_NULL
888 resolved_name = SMB_VFS_REALPATH(conn,fname,NULL);
889#else
890 resolved_name = SMB_VFS_REALPATH(conn,fname,resolved_name_buf);
891#endif
892
893 if (!resolved_name) {
894 switch (errno) {
895 case ENOTDIR:
896 DEBUG(3,("check_reduced_name: Component not a "
897 "directory in getting realpath for "
898 "%s\n", fname));
899 return NT_STATUS_OBJECT_PATH_NOT_FOUND;
900 case ENOENT:
901 {
902 TALLOC_CTX *ctx = talloc_tos();
903 char *tmp_fname = NULL;
904 char *last_component = NULL;
905 /* Last component didn't exist. Remove it and try and canonicalise the directory. */
906
907 tmp_fname = talloc_strdup(ctx, fname);
908 if (!tmp_fname) {
909 return NT_STATUS_NO_MEMORY;
910 }
911 p = strrchr_m(tmp_fname, '/');
912 if (p) {
913 *p++ = '\0';
914 last_component = p;
915 } else {
916 last_component = tmp_fname;
917 tmp_fname = talloc_strdup(ctx,
918 ".");
919 if (!tmp_fname) {
920 return NT_STATUS_NO_MEMORY;
921 }
922 }
923
924#ifdef REALPATH_TAKES_NULL
925 resolved_name = SMB_VFS_REALPATH(conn,tmp_fname,NULL);
926#else
927 resolved_name = SMB_VFS_REALPATH(conn,tmp_fname,resolved_name_buf);
928#endif
929 if (!resolved_name) {
930 NTSTATUS status = map_nt_error_from_unix(errno);
931
932 if (errno == ENOENT || errno == ENOTDIR) {
933 status = NT_STATUS_OBJECT_PATH_NOT_FOUND;
934 }
935
936 DEBUG(3,("check_reduce_named: "
937 "couldn't get realpath for "
938 "%s (%s)\n",
939 fname,
940 nt_errstr(status)));
941 return status;
942 }
943 tmp_fname = talloc_asprintf(ctx,
944 "%s/%s",
945 resolved_name,
946 last_component);
947 if (!tmp_fname) {
948 return NT_STATUS_NO_MEMORY;
949 }
950#ifdef REALPATH_TAKES_NULL
951 SAFE_FREE(resolved_name);
952 resolved_name = SMB_STRDUP(tmp_fname);
953 if (!resolved_name) {
954 DEBUG(0, ("check_reduced_name: malloc "
955 "fail for %s\n", tmp_fname));
956 return NT_STATUS_NO_MEMORY;
957 }
958#else
959 safe_strcpy(resolved_name_buf, tmp_fname, PATH_MAX);
960 resolved_name = resolved_name_buf;
961#endif
962 break;
963 }
964 default:
965 DEBUG(3,("check_reduced_name: couldn't get "
966 "realpath for %s\n", fname));
967 return map_nt_error_from_unix(errno);
968 }
969 }
970
971 DEBUG(10,("check_reduced_name realpath [%s] -> [%s]\n", fname,
972 resolved_name));
973
974#ifdef __OS2__
975 if (*resolved_name != '/' && *resolved_name != '\\' && (strlen(resolved_name) <= 1 || resolved_name[1] != ':')) {
976#else
977 if (*resolved_name != '/') {
978#endif
979 DEBUG(0,("check_reduced_name: realpath doesn't return "
980 "absolute paths !\n"));
981 if (free_resolved_name) {
982 SAFE_FREE(resolved_name);
983 }
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 if (free_resolved_name) {
996 SAFE_FREE(resolved_name);
997 }
998 return NT_STATUS_ACCESS_DENIED;
999 }
1000
1001 if (strncmp(conn_rootdir, resolved_name,
1002 strlen(conn_rootdir)) != 0) {
1003 DEBUG(2, ("check_reduced_name: Bad access "
1004 "attempt: %s is a symlink outside the "
1005 "share path\n", fname));
1006 if (free_resolved_name) {
1007 SAFE_FREE(resolved_name);
1008 }
1009 return NT_STATUS_ACCESS_DENIED;
1010 }
1011 }
1012
1013 /* Check if we are allowing users to follow symlinks */
1014 /* Patch from David Clerc <David.Clerc@cui.unige.ch>
1015 University of Geneva */
1016
1017#ifdef S_ISLNK
1018 if (!lp_symlinks(SNUM(conn))) {
1019 struct smb_filename *smb_fname = NULL;
1020 NTSTATUS status;
1021
1022 status = create_synthetic_smb_fname(talloc_tos(), fname, NULL,
1023 NULL, &smb_fname);
1024 if (!NT_STATUS_IS_OK(status)) {
1025 if (free_resolved_name) {
1026 SAFE_FREE(resolved_name);
1027 }
1028 return status;
1029 }
1030
1031 if ( (SMB_VFS_LSTAT(conn, smb_fname) != -1) &&
1032 (S_ISLNK(smb_fname->st.st_ex_mode)) ) {
1033 if (free_resolved_name) {
1034 SAFE_FREE(resolved_name);
1035 }
1036 DEBUG(3,("check_reduced_name: denied: file path name "
1037 "%s is a symlink\n",resolved_name));
1038 TALLOC_FREE(smb_fname);
1039 return NT_STATUS_ACCESS_DENIED;
1040 }
1041 TALLOC_FREE(smb_fname);
1042 }
1043#endif
1044
1045 DEBUG(3,("check_reduced_name: %s reduced to %s\n", fname,
1046 resolved_name));
1047 if (free_resolved_name) {
1048 SAFE_FREE(resolved_name);
1049 }
1050 return NT_STATUS_OK;
1051}
1052
1053/**
1054 * XXX: This is temporary and there should be no callers of this once
1055 * smb_filename is plumbed through all path based operations.
1056 */
1057int vfs_stat_smb_fname(struct connection_struct *conn, const char *fname,
1058 SMB_STRUCT_STAT *psbuf)
1059{
1060 struct smb_filename *smb_fname = NULL;
1061 NTSTATUS status;
1062 int ret;
1063
1064 status = create_synthetic_smb_fname_split(talloc_tos(), fname, NULL,
1065 &smb_fname);
1066 if (!NT_STATUS_IS_OK(status)) {
1067 errno = map_errno_from_nt_status(status);
1068 return -1;
1069 }
1070
1071 if (lp_posix_pathnames()) {
1072 ret = SMB_VFS_LSTAT(conn, smb_fname);
1073 } else {
1074 ret = SMB_VFS_STAT(conn, smb_fname);
1075 }
1076
1077 if (ret != -1) {
1078 *psbuf = smb_fname->st;
1079 }
1080
1081 TALLOC_FREE(smb_fname);
1082 return ret;
1083}
1084
1085/**
1086 * XXX: This is temporary and there should be no callers of this once
1087 * smb_filename is plumbed through all path based operations.
1088 */
1089int vfs_lstat_smb_fname(struct connection_struct *conn, const char *fname,
1090 SMB_STRUCT_STAT *psbuf)
1091{
1092 struct smb_filename *smb_fname = NULL;
1093 NTSTATUS status;
1094 int ret;
1095
1096 status = create_synthetic_smb_fname_split(talloc_tos(), fname, NULL,
1097 &smb_fname);
1098 if (!NT_STATUS_IS_OK(status)) {
1099 errno = map_errno_from_nt_status(status);
1100 return -1;
1101 }
1102
1103 ret = SMB_VFS_LSTAT(conn, smb_fname);
1104 if (ret != -1) {
1105 *psbuf = smb_fname->st;
1106 }
1107
1108 TALLOC_FREE(smb_fname);
1109 return ret;
1110}
1111
1112/**
1113 * Ensure LSTAT is called for POSIX paths.
1114 */
1115
1116NTSTATUS vfs_stat_fsp(files_struct *fsp)
1117{
1118 int ret;
1119
1120 if(fsp->is_directory || fsp->fh->fd == -1) {
1121 if (fsp->posix_open) {
1122 ret = SMB_VFS_LSTAT(fsp->conn, fsp->fsp_name);
1123 } else {
1124 ret = SMB_VFS_STAT(fsp->conn, fsp->fsp_name);
1125 }
1126 if (ret == -1) {
1127 return map_nt_error_from_unix(errno);
1128 }
1129 } else {
1130 if(SMB_VFS_FSTAT(fsp, &fsp->fsp_name->st) != 0) {
1131 return map_nt_error_from_unix(errno);
1132 }
1133 }
1134 return NT_STATUS_OK;
1135}
1136
1137/*
1138 generate a file_id from a stat structure
1139 */
1140struct file_id vfs_file_id_from_sbuf(connection_struct *conn, const SMB_STRUCT_STAT *sbuf)
1141{
1142 return SMB_VFS_FILE_ID_CREATE(conn, sbuf);
1143}
1144
1145int smb_vfs_call_connect(struct vfs_handle_struct *handle,
1146 const char *service, const char *user)
1147{
1148 VFS_FIND(connect_fn);
1149 return handle->fns->connect_fn(handle, service, user);
1150}
1151
1152void smb_vfs_call_disconnect(struct vfs_handle_struct *handle)
1153{
1154 VFS_FIND(disconnect);
1155 handle->fns->disconnect(handle);
1156}
1157
1158uint64_t smb_vfs_call_disk_free(struct vfs_handle_struct *handle,
1159 const char *path, bool small_query,
1160 uint64_t *bsize, uint64_t *dfree,
1161 uint64_t *dsize)
1162{
1163 VFS_FIND(disk_free);
1164 return handle->fns->disk_free(handle, path, small_query, bsize, dfree,
1165 dsize);
1166}
1167
1168int smb_vfs_call_get_quota(struct vfs_handle_struct *handle,
1169 enum SMB_QUOTA_TYPE qtype, unid_t id,
1170 SMB_DISK_QUOTA *qt)
1171{
1172 VFS_FIND(get_quota);
1173 return handle->fns->get_quota(handle, qtype, id, qt);
1174}
1175
1176int smb_vfs_call_set_quota(struct vfs_handle_struct *handle,
1177 enum SMB_QUOTA_TYPE qtype, unid_t id,
1178 SMB_DISK_QUOTA *qt)
1179{
1180 VFS_FIND(set_quota);
1181 return handle->fns->set_quota(handle, qtype, id, qt);
1182}
1183
1184int smb_vfs_call_get_shadow_copy_data(struct vfs_handle_struct *handle,
1185 struct files_struct *fsp,
1186 SHADOW_COPY_DATA *shadow_copy_data,
1187 bool labels)
1188{
1189 VFS_FIND(get_shadow_copy_data);
1190 return handle->fns->get_shadow_copy_data(handle, fsp, shadow_copy_data,
1191 labels);
1192}
1193int smb_vfs_call_statvfs(struct vfs_handle_struct *handle, const char *path,
1194 struct vfs_statvfs_struct *statbuf)
1195{
1196 VFS_FIND(statvfs);
1197 return handle->fns->statvfs(handle, path, statbuf);
1198}
1199
1200uint32_t smb_vfs_call_fs_capabilities(struct vfs_handle_struct *handle,
1201 enum timestamp_set_resolution *p_ts_res)
1202{
1203 VFS_FIND(fs_capabilities);
1204 return handle->fns->fs_capabilities(handle, p_ts_res);
1205}
1206
1207SMB_STRUCT_DIR *smb_vfs_call_opendir(struct vfs_handle_struct *handle,
1208 const char *fname, const char *mask,
1209 uint32 attributes)
1210{
1211 VFS_FIND(opendir);
1212 return handle->fns->opendir(handle, fname, 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);
1276 return handle->fns->open(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 struct security_descriptor *sd,
1291 struct ea_list *ea_list,
1292 files_struct **result,
1293 int *pinfo)
1294{
1295 VFS_FIND(create_file);
1296 return handle->fns->create_file(
1297 handle, req, root_dir_fid, smb_fname, access_mask,
1298 share_access, create_disposition, create_options,
1299 file_attributes, oplock_request, allocation_size, sd, ea_list,
1300 result, pinfo);
1301}
1302
1303int smb_vfs_call_close_fn(struct vfs_handle_struct *handle,
1304 struct files_struct *fsp)
1305{
1306 VFS_FIND(close_fn);
1307 return handle->fns->close_fn(handle, fsp);
1308}
1309
1310ssize_t smb_vfs_call_vfs_read(struct vfs_handle_struct *handle,
1311 struct files_struct *fsp, void *data, size_t n)
1312{
1313 VFS_FIND(vfs_read);
1314 return handle->fns->vfs_read(handle, fsp, data, n);
1315}
1316
1317ssize_t smb_vfs_call_pread(struct vfs_handle_struct *handle,
1318 struct files_struct *fsp, void *data, size_t n,
1319 SMB_OFF_T offset)
1320{
1321 VFS_FIND(pread);
1322 return handle->fns->pread(handle, fsp, data, n, offset);
1323}
1324
1325ssize_t smb_vfs_call_write(struct vfs_handle_struct *handle,
1326 struct files_struct *fsp, const void *data,
1327 size_t n)
1328{
1329 VFS_FIND(write);
1330 return handle->fns->write(handle, fsp, data, n);
1331}
1332
1333ssize_t smb_vfs_call_pwrite(struct vfs_handle_struct *handle,
1334 struct files_struct *fsp, const void *data,
1335 size_t n, SMB_OFF_T offset)
1336{
1337 VFS_FIND(pwrite);
1338 return handle->fns->pwrite(handle, fsp, data, n, offset);
1339}
1340
1341SMB_OFF_T smb_vfs_call_lseek(struct vfs_handle_struct *handle,
1342 struct files_struct *fsp, SMB_OFF_T offset,
1343 int whence)
1344{
1345 VFS_FIND(lseek);
1346 return handle->fns->lseek(handle, fsp, offset, whence);
1347}
1348
1349ssize_t smb_vfs_call_sendfile(struct vfs_handle_struct *handle, int tofd,
1350 files_struct *fromfsp, const DATA_BLOB *header,
1351 SMB_OFF_T offset, size_t count)
1352{
1353 VFS_FIND(sendfile);
1354 return handle->fns->sendfile(handle, tofd, fromfsp, header, offset,
1355 count);
1356}
1357
1358ssize_t smb_vfs_call_recvfile(struct vfs_handle_struct *handle, int fromfd,
1359 files_struct *tofsp, SMB_OFF_T offset,
1360 size_t count)
1361{
1362 VFS_FIND(recvfile);
1363 return handle->fns->recvfile(handle, fromfd, tofsp, offset, count);
1364}
1365
1366int smb_vfs_call_rename(struct vfs_handle_struct *handle,
1367 const struct smb_filename *smb_fname_src,
1368 const struct smb_filename *smb_fname_dst)
1369{
1370 VFS_FIND(rename);
1371 return handle->fns->rename(handle, smb_fname_src, smb_fname_dst);
1372}
1373
1374int smb_vfs_call_fsync(struct vfs_handle_struct *handle,
1375 struct files_struct *fsp)
1376{
1377 VFS_FIND(fsync);
1378 return handle->fns->fsync(handle, fsp);
1379}
1380
1381int smb_vfs_call_stat(struct vfs_handle_struct *handle,
1382 struct smb_filename *smb_fname)
1383{
1384 VFS_FIND(stat);
1385 return handle->fns->stat(handle, smb_fname);
1386}
1387
1388int smb_vfs_call_fstat(struct vfs_handle_struct *handle,
1389 struct files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1390{
1391 VFS_FIND(fstat);
1392 return handle->fns->fstat(handle, fsp, sbuf);
1393}
1394
1395int smb_vfs_call_lstat(struct vfs_handle_struct *handle,
1396 struct smb_filename *smb_filename)
1397{
1398 VFS_FIND(lstat);
1399 return handle->fns->lstat(handle, smb_filename);
1400}
1401
1402uint64_t smb_vfs_call_get_alloc_size(struct vfs_handle_struct *handle,
1403 struct files_struct *fsp,
1404 const SMB_STRUCT_STAT *sbuf)
1405{
1406 VFS_FIND(get_alloc_size);
1407 return handle->fns->get_alloc_size(handle, fsp, sbuf);
1408}
1409
1410int smb_vfs_call_unlink(struct vfs_handle_struct *handle,
1411 const struct smb_filename *smb_fname)
1412{
1413 VFS_FIND(unlink);
1414 return handle->fns->unlink(handle, smb_fname);
1415}
1416
1417int smb_vfs_call_chmod(struct vfs_handle_struct *handle, const char *path,
1418 mode_t mode)
1419{
1420 VFS_FIND(chmod);
1421 return handle->fns->chmod(handle, path, mode);
1422}
1423
1424int smb_vfs_call_fchmod(struct vfs_handle_struct *handle,
1425 struct files_struct *fsp, mode_t mode)
1426{
1427 VFS_FIND(fchmod);
1428 return handle->fns->fchmod(handle, fsp, mode);
1429}
1430
1431int smb_vfs_call_chown(struct vfs_handle_struct *handle, const char *path,
1432 uid_t uid, gid_t gid)
1433{
1434 VFS_FIND(chown);
1435 return handle->fns->chown(handle, path, uid, gid);
1436}
1437
1438int smb_vfs_call_fchown(struct vfs_handle_struct *handle,
1439 struct files_struct *fsp, uid_t uid, gid_t gid)
1440{
1441 VFS_FIND(fchown);
1442 return handle->fns->fchown(handle, fsp, uid, gid);
1443}
1444
1445int smb_vfs_call_lchown(struct vfs_handle_struct *handle, const char *path,
1446 uid_t uid, gid_t gid)
1447{
1448 VFS_FIND(lchown);
1449 return handle->fns->lchown(handle, path, uid, gid);
1450}
1451
1452int smb_vfs_call_chdir(struct vfs_handle_struct *handle, const char *path)
1453{
1454 VFS_FIND(chdir);
1455 return handle->fns->chdir(handle, path);
1456}
1457
1458char *smb_vfs_call_getwd(struct vfs_handle_struct *handle, char *buf)
1459{
1460 VFS_FIND(getwd);
1461 return handle->fns->getwd(handle, buf);
1462}
1463
1464int smb_vfs_call_ntimes(struct vfs_handle_struct *handle,
1465 const struct smb_filename *smb_fname,
1466 struct smb_file_time *ft)
1467{
1468 VFS_FIND(ntimes);
1469 return handle->fns->ntimes(handle, smb_fname, ft);
1470}
1471
1472int smb_vfs_call_ftruncate(struct vfs_handle_struct *handle,
1473 struct files_struct *fsp, SMB_OFF_T offset)
1474{
1475 VFS_FIND(ftruncate);
1476 return handle->fns->ftruncate(handle, fsp, offset);
1477}
1478
1479int smb_vfs_call_kernel_flock(struct vfs_handle_struct *handle,
1480 struct files_struct *fsp, uint32 share_mode,
1481 uint32_t access_mask)
1482{
1483 VFS_FIND(kernel_flock);
1484 return handle->fns->kernel_flock(handle, fsp, share_mode,
1485 access_mask);
1486}
1487
1488int smb_vfs_call_linux_setlease(struct vfs_handle_struct *handle,
1489 struct files_struct *fsp, int leasetype)
1490{
1491 VFS_FIND(linux_setlease);
1492 return handle->fns->linux_setlease(handle, fsp, leasetype);
1493}
1494
1495int smb_vfs_call_symlink(struct vfs_handle_struct *handle, const char *oldpath,
1496 const char *newpath)
1497{
1498 VFS_FIND(symlink);
1499 return handle->fns->symlink(handle, oldpath, newpath);
1500}
1501
1502int smb_vfs_call_vfs_readlink(struct vfs_handle_struct *handle,
1503 const char *path, char *buf, size_t bufsiz)
1504{
1505 VFS_FIND(vfs_readlink);
1506 return handle->fns->vfs_readlink(handle, path, buf, bufsiz);
1507}
1508
1509int smb_vfs_call_link(struct vfs_handle_struct *handle, const char *oldpath,
1510 const char *newpath)
1511{
1512 VFS_FIND(link);
1513 return handle->fns->link(handle, oldpath, newpath);
1514}
1515
1516int smb_vfs_call_mknod(struct vfs_handle_struct *handle, const char *path,
1517 mode_t mode, SMB_DEV_T dev)
1518{
1519 VFS_FIND(mknod);
1520 return handle->fns->mknod(handle, path, mode, dev);
1521}
1522
1523char *smb_vfs_call_realpath(struct vfs_handle_struct *handle,
1524 const char *path, char *resolved_path)
1525{
1526 VFS_FIND(realpath);
1527 return handle->fns->realpath(handle, path, resolved_path);
1528}
1529
1530NTSTATUS smb_vfs_call_notify_watch(struct vfs_handle_struct *handle,
1531 struct sys_notify_context *ctx,
1532 struct notify_entry *e,
1533 void (*callback)(struct sys_notify_context *ctx,
1534 void *private_data,
1535 struct notify_event *ev),
1536 void *private_data, void *handle_p)
1537{
1538 VFS_FIND(notify_watch);
1539 return handle->fns->notify_watch(handle, ctx, e, callback,
1540 private_data, handle_p);
1541}
1542
1543int smb_vfs_call_chflags(struct vfs_handle_struct *handle, const char *path,
1544 unsigned int flags)
1545{
1546 VFS_FIND(chflags);
1547 return handle->fns->chflags(handle, path, flags);
1548}
1549
1550struct file_id smb_vfs_call_file_id_create(struct vfs_handle_struct *handle,
1551 const SMB_STRUCT_STAT *sbuf)
1552{
1553 VFS_FIND(file_id_create);
1554 return handle->fns->file_id_create(handle, sbuf);
1555}
1556
1557NTSTATUS smb_vfs_call_streaminfo(struct vfs_handle_struct *handle,
1558 struct files_struct *fsp,
1559 const char *fname,
1560 TALLOC_CTX *mem_ctx,
1561 unsigned int *num_streams,
1562 struct stream_struct **streams)
1563{
1564 VFS_FIND(streaminfo);
1565 return handle->fns->streaminfo(handle, fsp, fname, mem_ctx,
1566 num_streams, streams);
1567}
1568
1569int smb_vfs_call_get_real_filename(struct vfs_handle_struct *handle,
1570 const char *path, const char *name,
1571 TALLOC_CTX *mem_ctx, char **found_name)
1572{
1573 VFS_FIND(get_real_filename);
1574 return handle->fns->get_real_filename(handle, path, name, mem_ctx,
1575 found_name);
1576}
1577
1578const char *smb_vfs_call_connectpath(struct vfs_handle_struct *handle,
1579 const char *filename)
1580{
1581 VFS_FIND(connectpath);
1582 return handle->fns->connectpath(handle, filename);
1583}
1584
1585bool smb_vfs_call_strict_lock(struct vfs_handle_struct *handle,
1586 struct files_struct *fsp,
1587 struct lock_struct *plock)
1588{
1589 VFS_FIND(strict_lock);
1590 return handle->fns->strict_lock(handle, fsp, plock);
1591}
1592
1593void smb_vfs_call_strict_unlock(struct vfs_handle_struct *handle,
1594 struct files_struct *fsp,
1595 struct lock_struct *plock)
1596{
1597 VFS_FIND(strict_unlock);
1598 handle->fns->strict_unlock(handle, fsp, plock);
1599}
1600
1601NTSTATUS smb_vfs_call_translate_name(struct vfs_handle_struct *handle,
1602 const char *name,
1603 enum vfs_translate_direction direction,
1604 TALLOC_CTX *mem_ctx,
1605 char **mapped_name)
1606{
1607 VFS_FIND(translate_name);
1608 return handle->fns->translate_name(handle, name, direction, mem_ctx,
1609 mapped_name);
1610}
1611
1612NTSTATUS smb_vfs_call_fget_nt_acl(struct vfs_handle_struct *handle,
1613 struct files_struct *fsp,
1614 uint32 security_info,
1615 struct security_descriptor **ppdesc)
1616{
1617 VFS_FIND(fget_nt_acl);
1618 return handle->fns->fget_nt_acl(handle, fsp, security_info,
1619 ppdesc);
1620}
1621
1622NTSTATUS smb_vfs_call_get_nt_acl(struct vfs_handle_struct *handle,
1623 const char *name,
1624 uint32 security_info,
1625 struct security_descriptor **ppdesc)
1626{
1627 VFS_FIND(get_nt_acl);
1628 return handle->fns->get_nt_acl(handle, name, security_info, ppdesc);
1629}
1630
1631NTSTATUS smb_vfs_call_fset_nt_acl(struct vfs_handle_struct *handle,
1632 struct files_struct *fsp,
1633 uint32 security_info_sent,
1634 const struct security_descriptor *psd)
1635{
1636 VFS_FIND(fset_nt_acl);
1637 return handle->fns->fset_nt_acl(handle, fsp, security_info_sent, psd);
1638}
1639
1640int smb_vfs_call_chmod_acl(struct vfs_handle_struct *handle, const char *name,
1641 mode_t mode)
1642{
1643 VFS_FIND(chmod_acl);
1644 return handle->fns->chmod_acl(handle, name, mode);
1645}
1646
1647int smb_vfs_call_fchmod_acl(struct vfs_handle_struct *handle,
1648 struct files_struct *fsp, mode_t mode)
1649{
1650 VFS_FIND(fchmod_acl);
1651 return handle->fns->fchmod_acl(handle, fsp, mode);
1652}
1653
1654int smb_vfs_call_sys_acl_get_entry(struct vfs_handle_struct *handle,
1655 SMB_ACL_T theacl, int entry_id,
1656 SMB_ACL_ENTRY_T *entry_p)
1657{
1658 VFS_FIND(sys_acl_get_entry);
1659 return handle->fns->sys_acl_get_entry(handle, theacl, entry_id,
1660 entry_p);
1661}
1662
1663int smb_vfs_call_sys_acl_get_tag_type(struct vfs_handle_struct *handle,
1664 SMB_ACL_ENTRY_T entry_d,
1665 SMB_ACL_TAG_T *tag_type_p)
1666{
1667 VFS_FIND(sys_acl_get_tag_type);
1668 return handle->fns->sys_acl_get_tag_type(handle, entry_d, tag_type_p);
1669}
1670
1671int smb_vfs_call_sys_acl_get_permset(struct vfs_handle_struct *handle,
1672 SMB_ACL_ENTRY_T entry_d,
1673 SMB_ACL_PERMSET_T *permset_p)
1674{
1675 VFS_FIND(sys_acl_get_permset);
1676 return handle->fns->sys_acl_get_permset(handle, entry_d, permset_p);
1677}
1678
1679void * smb_vfs_call_sys_acl_get_qualifier(struct vfs_handle_struct *handle,
1680 SMB_ACL_ENTRY_T entry_d)
1681{
1682 VFS_FIND(sys_acl_get_qualifier);
1683 return handle->fns->sys_acl_get_qualifier(handle, entry_d);
1684}
1685
1686SMB_ACL_T smb_vfs_call_sys_acl_get_file(struct vfs_handle_struct *handle,
1687 const char *path_p,
1688 SMB_ACL_TYPE_T type)
1689{
1690 VFS_FIND(sys_acl_get_file);
1691 return handle->fns->sys_acl_get_file(handle, path_p, type);
1692}
1693
1694SMB_ACL_T smb_vfs_call_sys_acl_get_fd(struct vfs_handle_struct *handle,
1695 struct files_struct *fsp)
1696{
1697 VFS_FIND(sys_acl_get_fd);
1698 return handle->fns->sys_acl_get_fd(handle, fsp);
1699}
1700
1701int smb_vfs_call_sys_acl_clear_perms(struct vfs_handle_struct *handle,
1702 SMB_ACL_PERMSET_T permset)
1703{
1704 VFS_FIND(sys_acl_clear_perms);
1705 return handle->fns->sys_acl_clear_perms(handle, permset);
1706}
1707
1708int smb_vfs_call_sys_acl_add_perm(struct vfs_handle_struct *handle,
1709 SMB_ACL_PERMSET_T permset,
1710 SMB_ACL_PERM_T perm)
1711{
1712 VFS_FIND(sys_acl_add_perm);
1713 return handle->fns->sys_acl_add_perm(handle, permset, perm);
1714}
1715
1716char * smb_vfs_call_sys_acl_to_text(struct vfs_handle_struct *handle,
1717 SMB_ACL_T theacl, ssize_t *plen)
1718{
1719 VFS_FIND(sys_acl_to_text);
1720 return handle->fns->sys_acl_to_text(handle, theacl, plen);
1721}
1722
1723SMB_ACL_T smb_vfs_call_sys_acl_init(struct vfs_handle_struct *handle,
1724 int count)
1725{
1726 VFS_FIND(sys_acl_init);
1727 return handle->fns->sys_acl_init(handle, count);
1728}
1729
1730int smb_vfs_call_sys_acl_create_entry(struct vfs_handle_struct *handle,
1731 SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry)
1732{
1733 VFS_FIND(sys_acl_create_entry);
1734 return handle->fns->sys_acl_create_entry(handle, pacl, pentry);
1735}
1736
1737int smb_vfs_call_sys_acl_set_tag_type(struct vfs_handle_struct *handle,
1738 SMB_ACL_ENTRY_T entry,
1739 SMB_ACL_TAG_T tagtype)
1740{
1741 VFS_FIND(sys_acl_set_tag_type);
1742 return handle->fns->sys_acl_set_tag_type(handle, entry, tagtype);
1743}
1744
1745int smb_vfs_call_sys_acl_set_qualifier(struct vfs_handle_struct *handle,
1746 SMB_ACL_ENTRY_T entry, void *qual)
1747{
1748 VFS_FIND(sys_acl_set_qualifier);
1749 return handle->fns->sys_acl_set_qualifier(handle, entry, qual);
1750}
1751
1752int smb_vfs_call_sys_acl_set_permset(struct vfs_handle_struct *handle,
1753 SMB_ACL_ENTRY_T entry,
1754 SMB_ACL_PERMSET_T permset)
1755{
1756 VFS_FIND(sys_acl_set_permset);
1757 return handle->fns->sys_acl_set_permset(handle, entry, permset);
1758}
1759
1760int smb_vfs_call_sys_acl_valid(struct vfs_handle_struct *handle,
1761 SMB_ACL_T theacl)
1762{
1763 VFS_FIND(sys_acl_valid);
1764 return handle->fns->sys_acl_valid(handle, theacl);
1765}
1766
1767int smb_vfs_call_sys_acl_set_file(struct vfs_handle_struct *handle,
1768 const char *name, SMB_ACL_TYPE_T acltype,
1769 SMB_ACL_T theacl)
1770{
1771 VFS_FIND(sys_acl_set_file);
1772 return handle->fns->sys_acl_set_file(handle, name, acltype, theacl);
1773}
1774
1775int smb_vfs_call_sys_acl_set_fd(struct vfs_handle_struct *handle,
1776 struct files_struct *fsp, SMB_ACL_T theacl)
1777{
1778 VFS_FIND(sys_acl_set_fd);
1779 return handle->fns->sys_acl_set_fd(handle, fsp, theacl);
1780}
1781
1782int smb_vfs_call_sys_acl_delete_def_file(struct vfs_handle_struct *handle,
1783 const char *path)
1784{
1785 VFS_FIND(sys_acl_delete_def_file);
1786 return handle->fns->sys_acl_delete_def_file(handle, path);
1787}
1788
1789int smb_vfs_call_sys_acl_get_perm(struct vfs_handle_struct *handle,
1790 SMB_ACL_PERMSET_T permset,
1791 SMB_ACL_PERM_T perm)
1792{
1793 VFS_FIND(sys_acl_get_perm);
1794 return handle->fns->sys_acl_get_perm(handle, permset, perm);
1795}
1796
1797int smb_vfs_call_sys_acl_free_text(struct vfs_handle_struct *handle,
1798 char *text)
1799{
1800 VFS_FIND(sys_acl_free_text);
1801 return handle->fns->sys_acl_free_text(handle, text);
1802}
1803
1804int smb_vfs_call_sys_acl_free_acl(struct vfs_handle_struct *handle,
1805 SMB_ACL_T posix_acl)
1806{
1807 VFS_FIND(sys_acl_free_acl);
1808 return handle->fns->sys_acl_free_acl(handle, posix_acl);
1809}
1810
1811int smb_vfs_call_sys_acl_free_qualifier(struct vfs_handle_struct *handle,
1812 void *qualifier, SMB_ACL_TAG_T tagtype)
1813{
1814 VFS_FIND(sys_acl_free_qualifier);
1815 return handle->fns->sys_acl_free_qualifier(handle, qualifier, tagtype);
1816}
1817
1818ssize_t smb_vfs_call_getxattr(struct vfs_handle_struct *handle,
1819 const char *path, const char *name, void *value,
1820 size_t size)
1821{
1822 VFS_FIND(getxattr);
1823 return handle->fns->getxattr(handle, path, name, value, size);
1824}
1825
1826ssize_t smb_vfs_call_lgetxattr(struct vfs_handle_struct *handle,
1827 const char *path, const char *name, void *value,
1828 size_t size)
1829{
1830 VFS_FIND(lgetxattr);
1831 return handle->fns->lgetxattr(handle, path, name, value, size);
1832}
1833
1834ssize_t smb_vfs_call_fgetxattr(struct vfs_handle_struct *handle,
1835 struct files_struct *fsp, const char *name,
1836 void *value, size_t size)
1837{
1838 VFS_FIND(fgetxattr);
1839 return handle->fns->fgetxattr(handle, fsp, name, value, size);
1840}
1841
1842ssize_t smb_vfs_call_listxattr(struct vfs_handle_struct *handle,
1843 const char *path, char *list, size_t size)
1844{
1845 VFS_FIND(listxattr);
1846 return handle->fns->listxattr(handle, path, list, size);
1847}
1848
1849ssize_t smb_vfs_call_llistxattr(struct vfs_handle_struct *handle,
1850 const char *path, char *list, size_t size)
1851{
1852 VFS_FIND(llistxattr);
1853 return handle->fns->llistxattr(handle, path, list, size);
1854}
1855
1856ssize_t smb_vfs_call_flistxattr(struct vfs_handle_struct *handle,
1857 struct files_struct *fsp, char *list,
1858 size_t size)
1859{
1860 VFS_FIND(flistxattr);
1861 return handle->fns->flistxattr(handle, fsp, list, size);
1862}
1863
1864int smb_vfs_call_removexattr(struct vfs_handle_struct *handle,
1865 const char *path, const char *name)
1866{
1867 VFS_FIND(removexattr);
1868 return handle->fns->removexattr(handle, path, name);
1869}
1870
1871int smb_vfs_call_lremovexattr(struct vfs_handle_struct *handle,
1872 const char *path, const char *name)
1873{
1874 VFS_FIND(lremovexattr);
1875 return handle->fns->lremovexattr(handle, path, name);
1876}
1877
1878int smb_vfs_call_fremovexattr(struct vfs_handle_struct *handle,
1879 struct files_struct *fsp, const char *name)
1880{
1881 VFS_FIND(fremovexattr);
1882 return handle->fns->fremovexattr(handle, fsp, name);
1883}
1884
1885int smb_vfs_call_setxattr(struct vfs_handle_struct *handle, const char *path,
1886 const char *name, const void *value, size_t size,
1887 int flags)
1888{
1889 VFS_FIND(setxattr);
1890 return handle->fns->setxattr(handle, path, name, value, size, flags);
1891}
1892
1893int smb_vfs_call_lsetxattr(struct vfs_handle_struct *handle, const char *path,
1894 const char *name, const void *value, size_t size,
1895 int flags)
1896{
1897 VFS_FIND(lsetxattr);
1898 return handle->fns->lsetxattr(handle, path, name, value, size, flags);
1899}
1900
1901int smb_vfs_call_fsetxattr(struct vfs_handle_struct *handle,
1902 struct files_struct *fsp, const char *name,
1903 const void *value, size_t size, int flags)
1904{
1905 VFS_FIND(fsetxattr);
1906 return handle->fns->fsetxattr(handle, fsp, name, value, size, flags);
1907}
1908
1909int smb_vfs_call_aio_read(struct vfs_handle_struct *handle,
1910 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
1911{
1912 VFS_FIND(aio_read);
1913 return handle->fns->aio_read(handle, fsp, aiocb);
1914}
1915
1916int smb_vfs_call_aio_write(struct vfs_handle_struct *handle,
1917 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
1918{
1919 VFS_FIND(aio_write);
1920 return handle->fns->aio_write(handle, fsp, aiocb);
1921}
1922
1923ssize_t smb_vfs_call_aio_return_fn(struct vfs_handle_struct *handle,
1924 struct files_struct *fsp,
1925 SMB_STRUCT_AIOCB *aiocb)
1926{
1927 VFS_FIND(aio_return_fn);
1928 return handle->fns->aio_return_fn(handle, fsp, aiocb);
1929}
1930
1931int smb_vfs_call_aio_cancel(struct vfs_handle_struct *handle,
1932 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
1933{
1934 VFS_FIND(aio_cancel);
1935 return handle->fns->aio_cancel(handle, fsp, aiocb);
1936}
1937
1938int smb_vfs_call_aio_error_fn(struct vfs_handle_struct *handle,
1939 struct files_struct *fsp,
1940 SMB_STRUCT_AIOCB *aiocb)
1941{
1942 VFS_FIND(aio_error_fn);
1943 return handle->fns->aio_error_fn(handle, fsp, aiocb);
1944}
1945
1946int smb_vfs_call_aio_fsync(struct vfs_handle_struct *handle,
1947 struct files_struct *fsp, int op,
1948 SMB_STRUCT_AIOCB *aiocb)
1949{
1950 VFS_FIND(aio_fsync);
1951 return handle->fns->aio_fsync(handle, fsp, op, aiocb);
1952}
1953
1954int smb_vfs_call_aio_suspend(struct vfs_handle_struct *handle,
1955 struct files_struct *fsp,
1956 const SMB_STRUCT_AIOCB * const aiocb[], int n,
1957 const struct timespec *timeout)
1958{
1959 VFS_FIND(aio_suspend);
1960 return handle->fns->aio_suspend(handle, fsp, aiocb, n, timeout);
1961}
1962
1963bool smb_vfs_call_aio_force(struct vfs_handle_struct *handle,
1964 struct files_struct *fsp)
1965{
1966 VFS_FIND(aio_force);
1967 return handle->fns->aio_force(handle, fsp);
1968}
1969
1970bool smb_vfs_call_is_offline(struct vfs_handle_struct *handle,
1971 const char *path, SMB_STRUCT_STAT *sbuf)
1972{
1973 VFS_FIND(is_offline);
1974 return handle->fns->is_offline(handle, path, sbuf);
1975}
1976
1977int smb_vfs_call_set_offline(struct vfs_handle_struct *handle,
1978 const char *path)
1979{
1980 VFS_FIND(set_offline);
1981 return handle->fns->set_offline(handle, path);
1982}
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