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Fix more use of VFS_STAT when posix pathnames selected.
[Samba.git] / source3 / smbd / vfs.c
blob171c8032043e4e469fdca9b740e93887090daf3c
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
32 static_decl_vfs;
33
34 struct 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
44 static 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
58 NTSTATUS 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
95 static 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
105 bool 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
210 void *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
235 void 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
258 void *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
271 void *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
289 bool 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
320 NTSTATUS 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
335 ssize_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
356 ssize_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
382 ssize_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
414 ssize_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
453 int 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
536 int 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
567 int 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 DEBUG(10,("vfs_fill_sparse: write zeros in file %s from len %.0f to "
586 "len %.0f (%.0f bytes)\n", fsp_str_dbg(fsp),
587 (double)st.st_ex_size, (double)len,
588 (double)(len - st.st_ex_size)));
589
590 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_FILL_SPARSE);
591
592 flush_write_cache(fsp, SIZECHANGE_FLUSH);
593
594 if (!sparse_buf) {
595 sparse_buf = SMB_CALLOC_ARRAY(char, SPARSE_BUF_WRITE_SIZE);
596 if (!sparse_buf) {
597 errno = ENOMEM;
598 ret = -1;
599 goto out;
600 }
601 }
602
603 offset = st.st_ex_size;
604 num_to_write = len - st.st_ex_size;
605 total = 0;
606
607 while (total < num_to_write) {
608 size_t curr_write_size = MIN(SPARSE_BUF_WRITE_SIZE, (num_to_write - total));
609
610 pwrite_ret = SMB_VFS_PWRITE(fsp, sparse_buf, curr_write_size, offset + total);
611 if (pwrite_ret == -1) {
612 DEBUG(10,("vfs_fill_sparse: SMB_VFS_PWRITE for file "
613 "%s failed with error %s\n",
614 fsp_str_dbg(fsp), strerror(errno)));
615 ret = -1;
616 goto out;
617 }
618 if (pwrite_ret == 0) {
619 ret = 0;
620 goto out;
621 }
622
623 total += pwrite_ret;
624 }
625
626 set_filelen_write_cache(fsp, len);
627
628 ret = 0;
629 out:
630 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_FILL_SPARSE);
631 return ret;
632 }
633
634 /****************************************************************************
635 Transfer some data (n bytes) between two file_struct's.
636 ****************************************************************************/
637
638 static ssize_t vfs_read_fn(void *file, void *buf, size_t len)
639 {
640 struct files_struct *fsp = (struct files_struct *)file;
641
642 return SMB_VFS_READ(fsp, buf, len);
643 }
644
645 static ssize_t vfs_write_fn(void *file, const void *buf, size_t len)
646 {
647 struct files_struct *fsp = (struct files_struct *)file;
648
649 return SMB_VFS_WRITE(fsp, buf, len);
650 }
651
652 SMB_OFF_T vfs_transfer_file(files_struct *in, files_struct *out, SMB_OFF_T n)
653 {
654 return transfer_file_internal((void *)in, (void *)out, n,
655 vfs_read_fn, vfs_write_fn);
656 }
657
658 /*******************************************************************
659 A vfs_readdir wrapper which just returns the file name.
660 ********************************************************************/
661
662 char *vfs_readdirname(connection_struct *conn, void *p, SMB_STRUCT_STAT *sbuf)
663 {
664 SMB_STRUCT_DIRENT *ptr= NULL;
665 char *dname = NULL;
666 NTSTATUS result;
667
668 if (!p)
669 return(NULL);
670
671 ptr = SMB_VFS_READDIR(conn, (DIR *)p, sbuf);
672 if (!ptr)
673 return(NULL);
674
675 dname = talloc_strdup(talloc_tos(), ptr->d_name);
676 if (dname == NULL) {
677 errno = ENOMEM;
678 return NULL;
679 }
680 result = SMB_VFS_TRANSLATE_NAME(conn, &dname,
681 vfs_translate_to_windows);
682 if (!NT_STATUS_IS_OK(result)) {
683 TALLOC_FREE(dname);
684 return NULL;
685 }
686
687 #ifdef NEXT2
688 if (telldir(p) < 0)
689 return(NULL);
690 #endif
691
692 #ifdef HAVE_BROKEN_READDIR_NAME
693 /* using /usr/ucb/cc is BAD */
694 dname = dname - 2;
695 #endif
696
697 return(dname);
698 }
699
700 /*******************************************************************
701 A wrapper for vfs_chdir().
702 ********************************************************************/
703
704 int vfs_ChDir(connection_struct *conn, const char *path)
705 {
706 int res;
707
708 if (!LastDir) {
709 LastDir = SMB_STRDUP("");
710 }
711
712 if (strcsequal(path,"."))
713 return(0);
714
715 if (*path == '/' && strcsequal(LastDir,path))
716 return(0);
717
718 DEBUG(4,("vfs_ChDir to %s\n",path));
719
720 res = SMB_VFS_CHDIR(conn,path);
721 if (!res) {
722 SAFE_FREE(LastDir);
723 LastDir = SMB_STRDUP(path);
724 }
725 return(res);
726 }
727
728 /*******************************************************************
729 Return the absolute current directory path - given a UNIX pathname.
730 Note that this path is returned in DOS format, not UNIX
731 format. Note this can be called with conn == NULL.
732 ********************************************************************/
733
734 char *vfs_GetWd(TALLOC_CTX *ctx, connection_struct *conn)
735 {
736 char s[PATH_MAX+1];
737 char *result = NULL;
738 DATA_BLOB cache_value;
739 struct file_id key;
740 struct smb_filename *smb_fname_dot = NULL;
741 struct smb_filename *smb_fname_full = NULL;
742 NTSTATUS status;
743
744 *s = 0;
745
746 if (!lp_getwd_cache()) {
747 goto nocache;
748 }
749
750 status = create_synthetic_smb_fname(ctx, ".", NULL, NULL,
751 &smb_fname_dot);
752 if (!NT_STATUS_IS_OK(status)) {
753 errno = map_errno_from_nt_status(status);
754 goto out;
755 }
756
757 if (SMB_VFS_STAT(conn, smb_fname_dot) == -1) {
758 /*
759 * Known to fail for root: the directory may be NFS-mounted
760 * and exported with root_squash (so has no root access).
761 */
762 DEBUG(1,("vfs_GetWd: couldn't stat \".\" error %s "
763 "(NFS problem ?)\n", strerror(errno) ));
764 goto nocache;
765 }
766
767 key = vfs_file_id_from_sbuf(conn, &smb_fname_dot->st);
768
769 if (!memcache_lookup(smbd_memcache(), GETWD_CACHE,
770 data_blob_const(&key, sizeof(key)),
771 &cache_value)) {
772 goto nocache;
773 }
774
775 SMB_ASSERT((cache_value.length > 0)
776 && (cache_value.data[cache_value.length-1] == '\0'));
777
778 status = create_synthetic_smb_fname(ctx, (char *)cache_value.data,
779 NULL, NULL, &smb_fname_full);
780 if (!NT_STATUS_IS_OK(status)) {
781 errno = map_errno_from_nt_status(status);
782 goto out;
783 }
784
785 if ((SMB_VFS_STAT(conn, smb_fname_full) == 0) &&
786 (smb_fname_dot->st.st_ex_dev == smb_fname_full->st.st_ex_dev) &&
787 (smb_fname_dot->st.st_ex_ino == smb_fname_full->st.st_ex_ino) &&
788 (S_ISDIR(smb_fname_dot->st.st_ex_mode))) {
789 /*
790 * Ok, we're done
791 */
792 result = talloc_strdup(ctx, smb_fname_full->base_name);
793 if (result == NULL) {
794 errno = ENOMEM;
795 }
796 goto out;
797 }
798
799 nocache:
800
801 /*
802 * We don't have the information to hand so rely on traditional
803 * methods. The very slow getcwd, which spawns a process on some
804 * systems, or the not quite so bad getwd.
805 */
806
807 if (!SMB_VFS_GETWD(conn,s)) {
808 DEBUG(0, ("vfs_GetWd: SMB_VFS_GETWD call failed: %s\n",
809 strerror(errno)));
810 goto out;
811 }
812
813 if (lp_getwd_cache() && VALID_STAT(smb_fname_dot->st)) {
814 key = vfs_file_id_from_sbuf(conn, &smb_fname_dot->st);
815
816 memcache_add(smbd_memcache(), GETWD_CACHE,
817 data_blob_const(&key, sizeof(key)),
818 data_blob_const(s, strlen(s)+1));
819 }
820
821 result = talloc_strdup(ctx, s);
822 if (result == NULL) {
823 errno = ENOMEM;
824 }
825
826 out:
827 TALLOC_FREE(smb_fname_dot);
828 TALLOC_FREE(smb_fname_full);
829 return result;
830 }
831
832 /*******************************************************************
833 Reduce a file name, removing .. elements and checking that
834 it is below dir in the heirachy. This uses realpath.
835 ********************************************************************/
836
837 NTSTATUS check_reduced_name(connection_struct *conn, const char *fname)
838 {
839 #ifdef REALPATH_TAKES_NULL
840 bool free_resolved_name = True;
841 #else
842 char resolved_name_buf[PATH_MAX+1];
843 bool free_resolved_name = False;
844 #endif
845 char *resolved_name = NULL;
846 char *p = NULL;
847
848 DEBUG(3,("reduce_name [%s] [%s]\n", fname, conn->connectpath));
849
850 #ifdef REALPATH_TAKES_NULL
851 resolved_name = SMB_VFS_REALPATH(conn,fname,NULL);
852 #else
853 resolved_name = SMB_VFS_REALPATH(conn,fname,resolved_name_buf);
854 #endif
855
856 if (!resolved_name) {
857 switch (errno) {
858 case ENOTDIR:
859 DEBUG(3,("reduce_name: Component not a directory in getting realpath for %s\n", fname));
860 return map_nt_error_from_unix(errno);
861 case ENOENT:
862 {
863 TALLOC_CTX *ctx = talloc_tos();
864 char *tmp_fname = NULL;
865 char *last_component = NULL;
866 /* Last component didn't exist. Remove it and try and canonicalise the directory. */
867
868 tmp_fname = talloc_strdup(ctx, fname);
869 if (!tmp_fname) {
870 return NT_STATUS_NO_MEMORY;
871 }
872 p = strrchr_m(tmp_fname, '/');
873 if (p) {
874 *p++ = '\0';
875 last_component = p;
876 } else {
877 last_component = tmp_fname;
878 tmp_fname = talloc_strdup(ctx,
879 ".");
880 if (!tmp_fname) {
881 return NT_STATUS_NO_MEMORY;
882 }
883 }
884
885 #ifdef REALPATH_TAKES_NULL
886 resolved_name = SMB_VFS_REALPATH(conn,tmp_fname,NULL);
887 #else
888 resolved_name = SMB_VFS_REALPATH(conn,tmp_fname,resolved_name_buf);
889 #endif
890 if (!resolved_name) {
891 DEBUG(3,("reduce_name: couldn't get realpath for %s\n", fname));
892 return map_nt_error_from_unix(errno);
893 }
894 tmp_fname = talloc_asprintf(ctx,
895 "%s/%s",
896 resolved_name,
897 last_component);
898 if (!tmp_fname) {
899 return NT_STATUS_NO_MEMORY;
900 }
901 #ifdef REALPATH_TAKES_NULL
902 SAFE_FREE(resolved_name);
903 resolved_name = SMB_STRDUP(tmp_fname);
904 if (!resolved_name) {
905 DEBUG(0,("reduce_name: malloc fail for %s\n", tmp_fname));
906 return NT_STATUS_NO_MEMORY;
907 }
908 #else
909 safe_strcpy(resolved_name_buf, tmp_fname, PATH_MAX);
910 resolved_name = resolved_name_buf;
911 #endif
912 break;
913 }
914 default:
915 DEBUG(1,("reduce_name: couldn't get realpath for %s\n", fname));
916 return map_nt_error_from_unix(errno);
917 }
918 }
919
920 DEBUG(10,("reduce_name realpath [%s] -> [%s]\n", fname, resolved_name));
921
922 if (*resolved_name != '/') {
923 DEBUG(0,("reduce_name: realpath doesn't return absolute paths !\n"));
924 if (free_resolved_name) {
925 SAFE_FREE(resolved_name);
926 }
927 return NT_STATUS_OBJECT_NAME_INVALID;
928 }
929
930 /* Check for widelinks allowed. */
931 if (!lp_widelinks(SNUM(conn))) {
932 const char *conn_rootdir;
933
934 conn_rootdir = SMB_VFS_CONNECTPATH(conn, fname);
935 if (conn_rootdir == NULL) {
936 DEBUG(2, ("check_reduced_name: Could not get conn_rootdir\n"));
937 if (free_resolved_name) {
938 SAFE_FREE(resolved_name);
939 }
940 return NT_STATUS_ACCESS_DENIED;
941 }
942
943 if (strncmp(conn_rootdir, resolved_name,
944 strlen(conn_rootdir)) != 0) {
945 DEBUG(2, ("reduce_name: Bad access attempt: %s is "
946 "a symlink outside the share path",
947 fname));
948 if (free_resolved_name) {
949 SAFE_FREE(resolved_name);
950 }
951 return NT_STATUS_ACCESS_DENIED;
952 }
953 }
954
955 /* Check if we are allowing users to follow symlinks */
956 /* Patch from David Clerc <David.Clerc@cui.unige.ch>
957 University of Geneva */
958
959 #ifdef S_ISLNK
960 if (!lp_symlinks(SNUM(conn))) {
961 struct smb_filename *smb_fname = NULL;
962 NTSTATUS status;
963
964 status = create_synthetic_smb_fname(talloc_tos(), fname, NULL,
965 NULL, &smb_fname);
966 if (!NT_STATUS_IS_OK(status)) {
967 if (free_resolved_name) {
968 SAFE_FREE(resolved_name);
969 }
970 return status;
971 }
972
973 if ( (SMB_VFS_LSTAT(conn, smb_fname) != -1) &&
974 (S_ISLNK(smb_fname->st.st_ex_mode)) ) {
975 if (free_resolved_name) {
976 SAFE_FREE(resolved_name);
977 }
978 DEBUG(3,("reduce_name: denied: file path name %s is a symlink\n",resolved_name));
979 TALLOC_FREE(smb_fname);
980 return NT_STATUS_ACCESS_DENIED;
981 }
982 TALLOC_FREE(smb_fname);
983 }
984 #endif
985
986 DEBUG(3,("reduce_name: %s reduced to %s\n", fname, resolved_name));
987 if (free_resolved_name) {
988 SAFE_FREE(resolved_name);
989 }
990 return NT_STATUS_OK;
991 }
992
993 /**
994 * XXX: This is temporary and there should be no callers of this once
995 * smb_filename is plumbed through all path based operations.
996 */
997 int vfs_stat_smb_fname(struct connection_struct *conn, const char *fname,
998 SMB_STRUCT_STAT *psbuf)
999 {
1000 struct smb_filename *smb_fname = NULL;
1001 NTSTATUS status;
1002 int ret;
1003
1004 status = create_synthetic_smb_fname_split(talloc_tos(), fname, NULL,
1005 &smb_fname);
1006 if (!NT_STATUS_IS_OK(status)) {
1007 errno = map_errno_from_nt_status(status);
1008 return -1;
1009 }
1010
1011 if (lp_posix_pathnames()) {
1012 ret = SMB_VFS_LSTAT(conn, smb_fname);
1013 } else {
1014 ret = SMB_VFS_STAT(conn, smb_fname);
1015 }
1016
1017 if (ret != -1) {
1018 *psbuf = smb_fname->st;
1019 }
1020
1021 TALLOC_FREE(smb_fname);
1022 return ret;
1023 }
1024
1025 /**
1026 * XXX: This is temporary and there should be no callers of this once
1027 * smb_filename is plumbed through all path based operations.
1028 */
1029 int vfs_lstat_smb_fname(struct connection_struct *conn, const char *fname,
1030 SMB_STRUCT_STAT *psbuf)
1031 {
1032 struct smb_filename *smb_fname = NULL;
1033 NTSTATUS status;
1034 int ret;
1035
1036 status = create_synthetic_smb_fname_split(talloc_tos(), fname, NULL,
1037 &smb_fname);
1038 if (!NT_STATUS_IS_OK(status)) {
1039 errno = map_errno_from_nt_status(status);
1040 return -1;
1041 }
1042
1043 ret = SMB_VFS_LSTAT(conn, smb_fname);
1044 if (ret != -1) {
1045 *psbuf = smb_fname->st;
1046 }
1047
1048 TALLOC_FREE(smb_fname);
1049 return ret;
1050 }
1051
1052 /*
1053 generate a file_id from a stat structure
1054 */
1055 struct file_id vfs_file_id_from_sbuf(connection_struct *conn, const SMB_STRUCT_STAT *sbuf)
1056 {
1057 return SMB_VFS_FILE_ID_CREATE(conn, sbuf);
1058 }
1059
1060 int smb_vfs_call_connect(struct vfs_handle_struct *handle,
1061 const char *service, const char *user)
1062 {
1063 VFS_FIND(connect_fn);
1064 return handle->fns->connect_fn(handle, service, user);
1065 }
1066
1067 void smb_vfs_call_disconnect(struct vfs_handle_struct *handle)
1068 {
1069 VFS_FIND(disconnect);
1070 handle->fns->disconnect(handle);
1071 }
1072
1073 uint64_t smb_vfs_call_disk_free(struct vfs_handle_struct *handle,
1074 const char *path, bool small_query,
1075 uint64_t *bsize, uint64_t *dfree,
1076 uint64_t *dsize)
1077 {
1078 VFS_FIND(disk_free);
1079 return handle->fns->disk_free(handle, path, small_query, bsize, dfree,
1080 dsize);
1081 }
1082
1083 int smb_vfs_call_get_quota(struct vfs_handle_struct *handle,
1084 enum SMB_QUOTA_TYPE qtype, unid_t id,
1085 SMB_DISK_QUOTA *qt)
1086 {
1087 VFS_FIND(get_quota);
1088 return handle->fns->get_quota(handle, qtype, id, qt);
1089 }
1090
1091 int smb_vfs_call_set_quota(struct vfs_handle_struct *handle,
1092 enum SMB_QUOTA_TYPE qtype, unid_t id,
1093 SMB_DISK_QUOTA *qt)
1094 {
1095 VFS_FIND(set_quota);
1096 return handle->fns->set_quota(handle, qtype, id, qt);
1097 }
1098
1099 int smb_vfs_call_get_shadow_copy_data(struct vfs_handle_struct *handle,
1100 struct files_struct *fsp,
1101 SHADOW_COPY_DATA *shadow_copy_data,
1102 bool labels)
1103 {
1104 VFS_FIND(get_shadow_copy_data);
1105 return handle->fns->get_shadow_copy_data(handle, fsp, shadow_copy_data,
1106 labels);
1107 }
1108 int smb_vfs_call_statvfs(struct vfs_handle_struct *handle, const char *path,
1109 struct vfs_statvfs_struct *statbuf)
1110 {
1111 VFS_FIND(statvfs);
1112 return handle->fns->statvfs(handle, path, statbuf);
1113 }
1114
1115 uint32_t smb_vfs_call_fs_capabilities(struct vfs_handle_struct *handle,
1116 enum timestamp_set_resolution *p_ts_res)
1117 {
1118 VFS_FIND(fs_capabilities);
1119 return handle->fns->fs_capabilities(handle, p_ts_res);
1120 }
1121
1122 SMB_STRUCT_DIR *smb_vfs_call_opendir(struct vfs_handle_struct *handle,
1123 const char *fname, const char *mask,
1124 uint32 attributes)
1125 {
1126 VFS_FIND(opendir);
1127 return handle->fns->opendir(handle, fname, mask, attributes);
1128 }
1129
1130 SMB_STRUCT_DIRENT *smb_vfs_call_readdir(struct vfs_handle_struct *handle,
1131 SMB_STRUCT_DIR *dirp,
1132 SMB_STRUCT_STAT *sbuf)
1133 {
1134 VFS_FIND(readdir);
1135 return handle->fns->readdir(handle, dirp, sbuf);
1136 }
1137
1138 void smb_vfs_call_seekdir(struct vfs_handle_struct *handle,
1139 SMB_STRUCT_DIR *dirp, long offset)
1140 {
1141 VFS_FIND(seekdir);
1142 handle->fns->seekdir(handle, dirp, offset);
1143 }
1144
1145 long smb_vfs_call_telldir(struct vfs_handle_struct *handle,
1146 SMB_STRUCT_DIR *dirp)
1147 {
1148 VFS_FIND(telldir);
1149 return handle->fns->telldir(handle, dirp);
1150 }
1151
1152 void smb_vfs_call_rewind_dir(struct vfs_handle_struct *handle,
1153 SMB_STRUCT_DIR *dirp)
1154 {
1155 VFS_FIND(rewind_dir);
1156 handle->fns->rewind_dir(handle, dirp);
1157 }
1158
1159 int smb_vfs_call_mkdir(struct vfs_handle_struct *handle, const char *path,
1160 mode_t mode)
1161 {
1162 VFS_FIND(mkdir);
1163 return handle->fns->mkdir(handle, path, mode);
1164 }
1165
1166 int smb_vfs_call_rmdir(struct vfs_handle_struct *handle, const char *path)
1167 {
1168 VFS_FIND(rmdir);
1169 return handle->fns->rmdir(handle, path);
1170 }
1171
1172 int smb_vfs_call_closedir(struct vfs_handle_struct *handle,
1173 SMB_STRUCT_DIR *dir)
1174 {
1175 VFS_FIND(closedir);
1176 return handle->fns->closedir(handle, dir);
1177 }
1178
1179 void smb_vfs_call_init_search_op(struct vfs_handle_struct *handle,
1180 SMB_STRUCT_DIR *dirp)
1181 {
1182 VFS_FIND(init_search_op);
1183 handle->fns->init_search_op(handle, dirp);
1184 }
1185
1186 int smb_vfs_call_open(struct vfs_handle_struct *handle,
1187 struct smb_filename *smb_fname, struct files_struct *fsp,
1188 int flags, mode_t mode)
1189 {
1190 VFS_FIND(open);
1191 return handle->fns->open(handle, smb_fname, fsp, flags, mode);
1192 }
1193
1194 NTSTATUS smb_vfs_call_create_file(struct vfs_handle_struct *handle,
1195 struct smb_request *req,
1196 uint16_t root_dir_fid,
1197 struct smb_filename *smb_fname,
1198 uint32_t access_mask,
1199 uint32_t share_access,
1200 uint32_t create_disposition,
1201 uint32_t create_options,
1202 uint32_t file_attributes,
1203 uint32_t oplock_request,
1204 uint64_t allocation_size,
1205 struct security_descriptor *sd,
1206 struct ea_list *ea_list,
1207 files_struct **result,
1208 int *pinfo)
1209 {
1210 VFS_FIND(create_file);
1211 return handle->fns->create_file(
1212 handle, req, root_dir_fid, smb_fname, access_mask,
1213 share_access, create_disposition, create_options,
1214 file_attributes, oplock_request, allocation_size, sd, ea_list,
1215 result, pinfo);
1216 }
1217
1218 int smb_vfs_call_close_fn(struct vfs_handle_struct *handle,
1219 struct files_struct *fsp)
1220 {
1221 VFS_FIND(close_fn);
1222 return handle->fns->close_fn(handle, fsp);
1223 }
1224
1225 ssize_t smb_vfs_call_vfs_read(struct vfs_handle_struct *handle,
1226 struct files_struct *fsp, void *data, size_t n)
1227 {
1228 VFS_FIND(vfs_read);
1229 return handle->fns->vfs_read(handle, fsp, data, n);
1230 }
1231
1232 ssize_t smb_vfs_call_pread(struct vfs_handle_struct *handle,
1233 struct files_struct *fsp, void *data, size_t n,
1234 SMB_OFF_T offset)
1235 {
1236 VFS_FIND(pread);
1237 return handle->fns->pread(handle, fsp, data, n, offset);
1238 }
1239
1240 ssize_t smb_vfs_call_write(struct vfs_handle_struct *handle,
1241 struct files_struct *fsp, const void *data,
1242 size_t n)
1243 {
1244 VFS_FIND(write);
1245 return handle->fns->write(handle, fsp, data, n);
1246 }
1247
1248 ssize_t smb_vfs_call_pwrite(struct vfs_handle_struct *handle,
1249 struct files_struct *fsp, const void *data,
1250 size_t n, SMB_OFF_T offset)
1251 {
1252 VFS_FIND(pwrite);
1253 return handle->fns->pwrite(handle, fsp, data, n, offset);
1254 }
1255
1256 SMB_OFF_T smb_vfs_call_lseek(struct vfs_handle_struct *handle,
1257 struct files_struct *fsp, SMB_OFF_T offset,
1258 int whence)
1259 {
1260 VFS_FIND(lseek);
1261 return handle->fns->lseek(handle, fsp, offset, whence);
1262 }
1263
1264 ssize_t smb_vfs_call_sendfile(struct vfs_handle_struct *handle, int tofd,
1265 files_struct *fromfsp, const DATA_BLOB *header,
1266 SMB_OFF_T offset, size_t count)
1267 {
1268 VFS_FIND(sendfile);
1269 return handle->fns->sendfile(handle, tofd, fromfsp, header, offset,
1270 count);
1271 }
1272
1273 ssize_t smb_vfs_call_recvfile(struct vfs_handle_struct *handle, int fromfd,
1274 files_struct *tofsp, SMB_OFF_T offset,
1275 size_t count)
1276 {
1277 VFS_FIND(recvfile);
1278 return handle->fns->recvfile(handle, fromfd, tofsp, offset, count);
1279 }
1280
1281 int smb_vfs_call_rename(struct vfs_handle_struct *handle,
1282 const struct smb_filename *smb_fname_src,
1283 const struct smb_filename *smb_fname_dst)
1284 {
1285 VFS_FIND(rename);
1286 return handle->fns->rename(handle, smb_fname_src, smb_fname_dst);
1287 }
1288
1289 int smb_vfs_call_fsync(struct vfs_handle_struct *handle,
1290 struct files_struct *fsp)
1291 {
1292 VFS_FIND(fsync);
1293 return handle->fns->fsync(handle, fsp);
1294 }
1295
1296 int smb_vfs_call_stat(struct vfs_handle_struct *handle,
1297 struct smb_filename *smb_fname)
1298 {
1299 VFS_FIND(stat);
1300 return handle->fns->stat(handle, smb_fname);
1301 }
1302
1303 int smb_vfs_call_fstat(struct vfs_handle_struct *handle,
1304 struct files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1305 {
1306 VFS_FIND(fstat);
1307 return handle->fns->fstat(handle, fsp, sbuf);
1308 }
1309
1310 int smb_vfs_call_lstat(struct vfs_handle_struct *handle,
1311 struct smb_filename *smb_filename)
1312 {
1313 VFS_FIND(lstat);
1314 return handle->fns->lstat(handle, smb_filename);
1315 }
1316
1317 uint64_t smb_vfs_call_get_alloc_size(struct vfs_handle_struct *handle,
1318 struct files_struct *fsp,
1319 const SMB_STRUCT_STAT *sbuf)
1320 {
1321 VFS_FIND(get_alloc_size);
1322 return handle->fns->get_alloc_size(handle, fsp, sbuf);
1323 }
1324
1325 int smb_vfs_call_unlink(struct vfs_handle_struct *handle,
1326 const struct smb_filename *smb_fname)
1327 {
1328 VFS_FIND(unlink);
1329 return handle->fns->unlink(handle, smb_fname);
1330 }
1331
1332 int smb_vfs_call_chmod(struct vfs_handle_struct *handle, const char *path,
1333 mode_t mode)
1334 {
1335 VFS_FIND(chmod);
1336 return handle->fns->chmod(handle, path, mode);
1337 }
1338
1339 int smb_vfs_call_fchmod(struct vfs_handle_struct *handle,
1340 struct files_struct *fsp, mode_t mode)
1341 {
1342 VFS_FIND(fchmod);
1343 return handle->fns->fchmod(handle, fsp, mode);
1344 }
1345
1346 int smb_vfs_call_chown(struct vfs_handle_struct *handle, const char *path,
1347 uid_t uid, gid_t gid)
1348 {
1349 VFS_FIND(chown);
1350 return handle->fns->chown(handle, path, uid, gid);
1351 }
1352
1353 int smb_vfs_call_fchown(struct vfs_handle_struct *handle,
1354 struct files_struct *fsp, uid_t uid, gid_t gid)
1355 {
1356 VFS_FIND(fchown);
1357 return handle->fns->fchown(handle, fsp, uid, gid);
1358 }
1359
1360 int smb_vfs_call_lchown(struct vfs_handle_struct *handle, const char *path,
1361 uid_t uid, gid_t gid)
1362 {
1363 VFS_FIND(lchown);
1364 return handle->fns->lchown(handle, path, uid, gid);
1365 }
1366
1367 int smb_vfs_call_chdir(struct vfs_handle_struct *handle, const char *path)
1368 {
1369 VFS_FIND(chdir);
1370 return handle->fns->chdir(handle, path);
1371 }
1372
1373 char *smb_vfs_call_getwd(struct vfs_handle_struct *handle, char *buf)
1374 {
1375 VFS_FIND(getwd);
1376 return handle->fns->getwd(handle, buf);
1377 }
1378
1379 int smb_vfs_call_ntimes(struct vfs_handle_struct *handle,
1380 const struct smb_filename *smb_fname,
1381 struct smb_file_time *ft)
1382 {
1383 VFS_FIND(ntimes);
1384 return handle->fns->ntimes(handle, smb_fname, ft);
1385 }
1386
1387 int smb_vfs_call_ftruncate(struct vfs_handle_struct *handle,
1388 struct files_struct *fsp, SMB_OFF_T offset)
1389 {
1390 VFS_FIND(ftruncate);
1391 return handle->fns->ftruncate(handle, fsp, offset);
1392 }
1393
1394 int smb_vfs_call_kernel_flock(struct vfs_handle_struct *handle,
1395 struct files_struct *fsp, uint32 share_mode)
1396 {
1397 VFS_FIND(kernel_flock);
1398 return handle->fns->kernel_flock(handle, fsp, share_mode);
1399 }
1400
1401 int smb_vfs_call_linux_setlease(struct vfs_handle_struct *handle,
1402 struct files_struct *fsp, int leasetype)
1403 {
1404 VFS_FIND(linux_setlease);
1405 return handle->fns->linux_setlease(handle, fsp, leasetype);
1406 }
1407
1408 int smb_vfs_call_symlink(struct vfs_handle_struct *handle, const char *oldpath,
1409 const char *newpath)
1410 {
1411 VFS_FIND(symlink);
1412 return handle->fns->symlink(handle, oldpath, newpath);
1413 }
1414
1415 int smb_vfs_call_vfs_readlink(struct vfs_handle_struct *handle,
1416 const char *path, char *buf, size_t bufsiz)
1417 {
1418 VFS_FIND(vfs_readlink);
1419 return handle->fns->vfs_readlink(handle, path, buf, bufsiz);
1420 }
1421
1422 int smb_vfs_call_link(struct vfs_handle_struct *handle, const char *oldpath,
1423 const char *newpath)
1424 {
1425 VFS_FIND(link);
1426 return handle->fns->link(handle, oldpath, newpath);
1427 }
1428
1429 int smb_vfs_call_mknod(struct vfs_handle_struct *handle, const char *path,
1430 mode_t mode, SMB_DEV_T dev)
1431 {
1432 VFS_FIND(mknod);
1433 return handle->fns->mknod(handle, path, mode, dev);
1434 }
1435
1436 char *smb_vfs_call_realpath(struct vfs_handle_struct *handle,
1437 const char *path, char *resolved_path)
1438 {
1439 VFS_FIND(realpath);
1440 return handle->fns->realpath(handle, path, resolved_path);
1441 }
1442
1443 NTSTATUS smb_vfs_call_notify_watch(struct vfs_handle_struct *handle,
1444 struct sys_notify_context *ctx,
1445 struct notify_entry *e,
1446 void (*callback)(struct sys_notify_context *ctx,
1447 void *private_data,
1448 struct notify_event *ev),
1449 void *private_data, void *handle_p)
1450 {
1451 VFS_FIND(notify_watch);
1452 return handle->fns->notify_watch(handle, ctx, e, callback,
1453 private_data, handle_p);
1454 }
1455
1456 int smb_vfs_call_chflags(struct vfs_handle_struct *handle, const char *path,
1457 unsigned int flags)
1458 {
1459 VFS_FIND(chflags);
1460 return handle->fns->chflags(handle, path, flags);
1461 }
1462
1463 struct file_id smb_vfs_call_file_id_create(struct vfs_handle_struct *handle,
1464 const SMB_STRUCT_STAT *sbuf)
1465 {
1466 VFS_FIND(file_id_create);
1467 return handle->fns->file_id_create(handle, sbuf);
1468 }
1469
1470 NTSTATUS smb_vfs_call_streaminfo(struct vfs_handle_struct *handle,
1471 struct files_struct *fsp,
1472 const char *fname,
1473 TALLOC_CTX *mem_ctx,
1474 unsigned int *num_streams,
1475 struct stream_struct **streams)
1476 {
1477 VFS_FIND(streaminfo);
1478 return handle->fns->streaminfo(handle, fsp, fname, mem_ctx,
1479 num_streams, streams);
1480 }
1481
1482 int smb_vfs_call_get_real_filename(struct vfs_handle_struct *handle,
1483 const char *path, const char *name,
1484 TALLOC_CTX *mem_ctx, char **found_name)
1485 {
1486 VFS_FIND(get_real_filename);
1487 return handle->fns->get_real_filename(handle, path, name, mem_ctx,
1488 found_name);
1489 }
1490
1491 const char *smb_vfs_call_connectpath(struct vfs_handle_struct *handle,
1492 const char *filename)
1493 {
1494 VFS_FIND(connectpath);
1495 return handle->fns->connectpath(handle, filename);
1496 }
1497
1498 bool smb_vfs_call_strict_lock(struct vfs_handle_struct *handle,
1499 struct files_struct *fsp,
1500 struct lock_struct *plock)
1501 {
1502 VFS_FIND(strict_lock);
1503 return handle->fns->strict_lock(handle, fsp, plock);
1504 }
1505
1506 void smb_vfs_call_strict_unlock(struct vfs_handle_struct *handle,
1507 struct files_struct *fsp,
1508 struct lock_struct *plock)
1509 {
1510 VFS_FIND(strict_unlock);
1511 handle->fns->strict_unlock(handle, fsp, plock);
1512 }
1513
1514 NTSTATUS smb_vfs_call_translate_name(struct vfs_handle_struct *handle,
1515 char **mapped_name,
1516 enum vfs_translate_direction direction)
1517 {
1518 VFS_FIND(translate_name);
1519 return handle->fns->translate_name(handle, mapped_name, direction);
1520 }
1521
1522 NTSTATUS smb_vfs_call_fget_nt_acl(struct vfs_handle_struct *handle,
1523 struct files_struct *fsp,
1524 uint32 security_info,
1525 struct security_descriptor **ppdesc)
1526 {
1527 VFS_FIND(fget_nt_acl);
1528 return handle->fns->fget_nt_acl(handle, fsp, security_info,
1529 ppdesc);
1530 }
1531
1532 NTSTATUS smb_vfs_call_get_nt_acl(struct vfs_handle_struct *handle,
1533 const char *name,
1534 uint32 security_info,
1535 struct security_descriptor **ppdesc)
1536 {
1537 VFS_FIND(get_nt_acl);
1538 return handle->fns->get_nt_acl(handle, name, security_info, ppdesc);
1539 }
1540
1541 NTSTATUS smb_vfs_call_fset_nt_acl(struct vfs_handle_struct *handle,
1542 struct files_struct *fsp,
1543 uint32 security_info_sent,
1544 const struct security_descriptor *psd)
1545 {
1546 VFS_FIND(fset_nt_acl);
1547 return handle->fns->fset_nt_acl(handle, fsp, security_info_sent, psd);
1548 }
1549
1550 int smb_vfs_call_chmod_acl(struct vfs_handle_struct *handle, const char *name,
1551 mode_t mode)
1552 {
1553 VFS_FIND(chmod_acl);
1554 return handle->fns->chmod_acl(handle, name, mode);
1555 }
1556
1557 int smb_vfs_call_fchmod_acl(struct vfs_handle_struct *handle,
1558 struct files_struct *fsp, mode_t mode)
1559 {
1560 VFS_FIND(fchmod_acl);
1561 return handle->fns->fchmod_acl(handle, fsp, mode);
1562 }
1563
1564 int smb_vfs_call_sys_acl_get_entry(struct vfs_handle_struct *handle,
1565 SMB_ACL_T theacl, int entry_id,
1566 SMB_ACL_ENTRY_T *entry_p)
1567 {
1568 VFS_FIND(sys_acl_get_entry);
1569 return handle->fns->sys_acl_get_entry(handle, theacl, entry_id,
1570 entry_p);
1571 }
1572
1573 int smb_vfs_call_sys_acl_get_tag_type(struct vfs_handle_struct *handle,
1574 SMB_ACL_ENTRY_T entry_d,
1575 SMB_ACL_TAG_T *tag_type_p)
1576 {
1577 VFS_FIND(sys_acl_get_tag_type);
1578 return handle->fns->sys_acl_get_tag_type(handle, entry_d, tag_type_p);
1579 }
1580
1581 int smb_vfs_call_sys_acl_get_permset(struct vfs_handle_struct *handle,
1582 SMB_ACL_ENTRY_T entry_d,
1583 SMB_ACL_PERMSET_T *permset_p)
1584 {
1585 VFS_FIND(sys_acl_get_permset);
1586 return handle->fns->sys_acl_get_permset(handle, entry_d, permset_p);
1587 }
1588
1589 void * smb_vfs_call_sys_acl_get_qualifier(struct vfs_handle_struct *handle,
1590 SMB_ACL_ENTRY_T entry_d)
1591 {
1592 VFS_FIND(sys_acl_get_qualifier);
1593 return handle->fns->sys_acl_get_qualifier(handle, entry_d);
1594 }
1595
1596 SMB_ACL_T smb_vfs_call_sys_acl_get_file(struct vfs_handle_struct *handle,
1597 const char *path_p,
1598 SMB_ACL_TYPE_T type)
1599 {
1600 VFS_FIND(sys_acl_get_file);
1601 return handle->fns->sys_acl_get_file(handle, path_p, type);
1602 }
1603
1604 SMB_ACL_T smb_vfs_call_sys_acl_get_fd(struct vfs_handle_struct *handle,
1605 struct files_struct *fsp)
1606 {
1607 VFS_FIND(sys_acl_get_fd);
1608 return handle->fns->sys_acl_get_fd(handle, fsp);
1609 }
1610
1611 int smb_vfs_call_sys_acl_clear_perms(struct vfs_handle_struct *handle,
1612 SMB_ACL_PERMSET_T permset)
1613 {
1614 VFS_FIND(sys_acl_clear_perms);
1615 return handle->fns->sys_acl_clear_perms(handle, permset);
1616 }
1617
1618 int smb_vfs_call_sys_acl_add_perm(struct vfs_handle_struct *handle,
1619 SMB_ACL_PERMSET_T permset,
1620 SMB_ACL_PERM_T perm)
1621 {
1622 VFS_FIND(sys_acl_add_perm);
1623 return handle->fns->sys_acl_add_perm(handle, permset, perm);
1624 }
1625
1626 char * smb_vfs_call_sys_acl_to_text(struct vfs_handle_struct *handle,
1627 SMB_ACL_T theacl, ssize_t *plen)
1628 {
1629 VFS_FIND(sys_acl_to_text);
1630 return handle->fns->sys_acl_to_text(handle, theacl, plen);
1631 }
1632
1633 SMB_ACL_T smb_vfs_call_sys_acl_init(struct vfs_handle_struct *handle,
1634 int count)
1635 {
1636 VFS_FIND(sys_acl_init);
1637 return handle->fns->sys_acl_init(handle, count);
1638 }
1639
1640 int smb_vfs_call_sys_acl_create_entry(struct vfs_handle_struct *handle,
1641 SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry)
1642 {
1643 VFS_FIND(sys_acl_create_entry);
1644 return handle->fns->sys_acl_create_entry(handle, pacl, pentry);
1645 }
1646
1647 int smb_vfs_call_sys_acl_set_tag_type(struct vfs_handle_struct *handle,
1648 SMB_ACL_ENTRY_T entry,
1649 SMB_ACL_TAG_T tagtype)
1650 {
1651 VFS_FIND(sys_acl_set_tag_type);
1652 return handle->fns->sys_acl_set_tag_type(handle, entry, tagtype);
1653 }
1654
1655 int smb_vfs_call_sys_acl_set_qualifier(struct vfs_handle_struct *handle,
1656 SMB_ACL_ENTRY_T entry, void *qual)
1657 {
1658 VFS_FIND(sys_acl_set_qualifier);
1659 return handle->fns->sys_acl_set_qualifier(handle, entry, qual);
1660 }
1661
1662 int smb_vfs_call_sys_acl_set_permset(struct vfs_handle_struct *handle,
1663 SMB_ACL_ENTRY_T entry,
1664 SMB_ACL_PERMSET_T permset)
1665 {
1666 VFS_FIND(sys_acl_set_permset);
1667 return handle->fns->sys_acl_set_permset(handle, entry, permset);
1668 }
1669
1670 int smb_vfs_call_sys_acl_valid(struct vfs_handle_struct *handle,
1671 SMB_ACL_T theacl)
1672 {
1673 VFS_FIND(sys_acl_valid);
1674 return handle->fns->sys_acl_valid(handle, theacl);
1675 }
1676
1677 int smb_vfs_call_sys_acl_set_file(struct vfs_handle_struct *handle,
1678 const char *name, SMB_ACL_TYPE_T acltype,
1679 SMB_ACL_T theacl)
1680 {
1681 VFS_FIND(sys_acl_set_file);
1682 return handle->fns->sys_acl_set_file(handle, name, acltype, theacl);
1683 }
1684
1685 int smb_vfs_call_sys_acl_set_fd(struct vfs_handle_struct *handle,
1686 struct files_struct *fsp, SMB_ACL_T theacl)
1687 {
1688 VFS_FIND(sys_acl_set_fd);
1689 return handle->fns->sys_acl_set_fd(handle, fsp, theacl);
1690 }
1691
1692 int smb_vfs_call_sys_acl_delete_def_file(struct vfs_handle_struct *handle,
1693 const char *path)
1694 {
1695 VFS_FIND(sys_acl_delete_def_file);
1696 return handle->fns->sys_acl_delete_def_file(handle, path);
1697 }
1698
1699 int smb_vfs_call_sys_acl_get_perm(struct vfs_handle_struct *handle,
1700 SMB_ACL_PERMSET_T permset,
1701 SMB_ACL_PERM_T perm)
1702 {
1703 VFS_FIND(sys_acl_get_perm);
1704 return handle->fns->sys_acl_get_perm(handle, permset, perm);
1705 }
1706
1707 int smb_vfs_call_sys_acl_free_text(struct vfs_handle_struct *handle,
1708 char *text)
1709 {
1710 VFS_FIND(sys_acl_free_text);
1711 return handle->fns->sys_acl_free_text(handle, text);
1712 }
1713
1714 int smb_vfs_call_sys_acl_free_acl(struct vfs_handle_struct *handle,
1715 SMB_ACL_T posix_acl)
1716 {
1717 VFS_FIND(sys_acl_free_acl);
1718 return handle->fns->sys_acl_free_acl(handle, posix_acl);
1719 }
1720
1721 int smb_vfs_call_sys_acl_free_qualifier(struct vfs_handle_struct *handle,
1722 void *qualifier, SMB_ACL_TAG_T tagtype)
1723 {
1724 VFS_FIND(sys_acl_free_qualifier);
1725 return handle->fns->sys_acl_free_qualifier(handle, qualifier, tagtype);
1726 }
1727
1728 ssize_t smb_vfs_call_getxattr(struct vfs_handle_struct *handle,
1729 const char *path, const char *name, void *value,
1730 size_t size)
1731 {
1732 VFS_FIND(getxattr);
1733 return handle->fns->getxattr(handle, path, name, value, size);
1734 }
1735
1736 ssize_t smb_vfs_call_lgetxattr(struct vfs_handle_struct *handle,
1737 const char *path, const char *name, void *value,
1738 size_t size)
1739 {
1740 VFS_FIND(lgetxattr);
1741 return handle->fns->lgetxattr(handle, path, name, value, size);
1742 }
1743
1744 ssize_t smb_vfs_call_fgetxattr(struct vfs_handle_struct *handle,
1745 struct files_struct *fsp, const char *name,
1746 void *value, size_t size)
1747 {
1748 VFS_FIND(fgetxattr);
1749 return handle->fns->fgetxattr(handle, fsp, name, value, size);
1750 }
1751
1752 ssize_t smb_vfs_call_listxattr(struct vfs_handle_struct *handle,
1753 const char *path, char *list, size_t size)
1754 {
1755 VFS_FIND(listxattr);
1756 return handle->fns->listxattr(handle, path, list, size);
1757 }
1758
1759 ssize_t smb_vfs_call_llistxattr(struct vfs_handle_struct *handle,
1760 const char *path, char *list, size_t size)
1761 {
1762 VFS_FIND(llistxattr);
1763 return handle->fns->llistxattr(handle, path, list, size);
1764 }
1765
1766 ssize_t smb_vfs_call_flistxattr(struct vfs_handle_struct *handle,
1767 struct files_struct *fsp, char *list,
1768 size_t size)
1769 {
1770 VFS_FIND(flistxattr);
1771 return handle->fns->flistxattr(handle, fsp, list, size);
1772 }
1773
1774 int smb_vfs_call_removexattr(struct vfs_handle_struct *handle,
1775 const char *path, const char *name)
1776 {
1777 VFS_FIND(removexattr);
1778 return handle->fns->removexattr(handle, path, name);
1779 }
1780
1781 int smb_vfs_call_lremovexattr(struct vfs_handle_struct *handle,
1782 const char *path, const char *name)
1783 {
1784 VFS_FIND(lremovexattr);
1785 return handle->fns->lremovexattr(handle, path, name);
1786 }
1787
1788 int smb_vfs_call_fremovexattr(struct vfs_handle_struct *handle,
1789 struct files_struct *fsp, const char *name)
1790 {
1791 VFS_FIND(fremovexattr);
1792 return handle->fns->fremovexattr(handle, fsp, name);
1793 }
1794
1795 int smb_vfs_call_setxattr(struct vfs_handle_struct *handle, const char *path,
1796 const char *name, const void *value, size_t size,
1797 int flags)
1798 {
1799 VFS_FIND(setxattr);
1800 return handle->fns->setxattr(handle, path, name, value, size, flags);
1801 }
1802
1803 int smb_vfs_call_lsetxattr(struct vfs_handle_struct *handle, const char *path,
1804 const char *name, const void *value, size_t size,
1805 int flags)
1806 {
1807 VFS_FIND(lsetxattr);
1808 return handle->fns->lsetxattr(handle, path, name, value, size, flags);
1809 }
1810
1811 int smb_vfs_call_fsetxattr(struct vfs_handle_struct *handle,
1812 struct files_struct *fsp, const char *name,
1813 const void *value, size_t size, int flags)
1814 {
1815 VFS_FIND(fsetxattr);
1816 return handle->fns->fsetxattr(handle, fsp, name, value, size, flags);
1817 }
1818
1819 int smb_vfs_call_aio_read(struct vfs_handle_struct *handle,
1820 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
1821 {
1822 VFS_FIND(aio_read);
1823 return handle->fns->aio_read(handle, fsp, aiocb);
1824 }
1825
1826 int smb_vfs_call_aio_write(struct vfs_handle_struct *handle,
1827 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
1828 {
1829 VFS_FIND(aio_write);
1830 return handle->fns->aio_write(handle, fsp, aiocb);
1831 }
1832
1833 ssize_t smb_vfs_call_aio_return_fn(struct vfs_handle_struct *handle,
1834 struct files_struct *fsp,
1835 SMB_STRUCT_AIOCB *aiocb)
1836 {
1837 VFS_FIND(aio_return_fn);
1838 return handle->fns->aio_return_fn(handle, fsp, aiocb);
1839 }
1840
1841 int smb_vfs_call_aio_cancel(struct vfs_handle_struct *handle,
1842 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
1843 {
1844 VFS_FIND(aio_cancel);
1845 return handle->fns->aio_cancel(handle, fsp, aiocb);
1846 }
1847
1848 int smb_vfs_call_aio_error_fn(struct vfs_handle_struct *handle,
1849 struct files_struct *fsp,
1850 SMB_STRUCT_AIOCB *aiocb)
1851 {
1852 VFS_FIND(aio_error_fn);
1853 return handle->fns->aio_error_fn(handle, fsp, aiocb);
1854 }
1855
1856 int smb_vfs_call_aio_fsync(struct vfs_handle_struct *handle,
1857 struct files_struct *fsp, int op,
1858 SMB_STRUCT_AIOCB *aiocb)
1859 {
1860 VFS_FIND(aio_fsync);
1861 return handle->fns->aio_fsync(handle, fsp, op, aiocb);
1862 }
1863
1864 int smb_vfs_call_aio_suspend(struct vfs_handle_struct *handle,
1865 struct files_struct *fsp,
1866 const SMB_STRUCT_AIOCB * const aiocb[], int n,
1867 const struct timespec *timeout)
1868 {
1869 VFS_FIND(aio_suspend);
1870 return handle->fns->aio_suspend(handle, fsp, aiocb, n, timeout);
1871 }
1872
1873 bool smb_vfs_call_aio_force(struct vfs_handle_struct *handle,
1874 struct files_struct *fsp)
1875 {
1876 VFS_FIND(aio_force);
1877 return handle->fns->aio_force(handle, fsp);
1878 }
1879
1880 bool smb_vfs_call_is_offline(struct vfs_handle_struct *handle,
1881 const char *path, SMB_STRUCT_STAT *sbuf)
1882 {
1883 VFS_FIND(is_offline);
1884 return handle->fns->is_offline(handle, path, sbuf);
1885 }
1886
1887 int smb_vfs_call_set_offline(struct vfs_handle_struct *handle,
1888 const char *path)
1889 {
1890 VFS_FIND(set_offline);
1891 return handle->fns->set_offline(handle, path);
1892 }
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