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s4-test/repl_schema: Remote global ldb connections
[Samba.git] / source3 / smbd / vfs.c
blob7042518ce203c49e6825dbbe322856724453c322
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 #include "memcache.h"
29
30 #undef DBGC_CLASS
31 #define DBGC_CLASS DBGC_VFS
32
33 static_decl_vfs;
34
35 struct vfs_init_function_entry {
36 char *name;
37 struct vfs_init_function_entry *prev, *next;
38 const struct vfs_fn_pointers *fns;
39 };
40
41 /****************************************************************************
42 maintain the list of available backends
43 ****************************************************************************/
44
45 static struct vfs_init_function_entry *vfs_find_backend_entry(const char *name)
46 {
47 struct vfs_init_function_entry *entry = backends;
48
49 DEBUG(10, ("vfs_find_backend_entry called for %s\n", name));
50
51 while(entry) {
52 if (strcmp(entry->name, name)==0) return entry;
53 entry = entry->next;
54 }
55
56 return NULL;
57 }
58
59 NTSTATUS smb_register_vfs(int version, const char *name,
60 const struct vfs_fn_pointers *fns)
61 {
62 struct vfs_init_function_entry *entry = backends;
63
64 if ((version != SMB_VFS_INTERFACE_VERSION)) {
65 DEBUG(0, ("Failed to register vfs module.\n"
66 "The module was compiled against SMB_VFS_INTERFACE_VERSION %d,\n"
67 "current SMB_VFS_INTERFACE_VERSION is %d.\n"
68 "Please recompile against the current Samba Version!\n",
69 version, SMB_VFS_INTERFACE_VERSION));
70 return NT_STATUS_OBJECT_TYPE_MISMATCH;
71 }
72
73 if (!name || !name[0]) {
74 DEBUG(0,("smb_register_vfs() called with NULL pointer or empty name!\n"));
75 return NT_STATUS_INVALID_PARAMETER;
76 }
77
78 if (vfs_find_backend_entry(name)) {
79 DEBUG(0,("VFS module %s already loaded!\n", name));
80 return NT_STATUS_OBJECT_NAME_COLLISION;
81 }
82
83 entry = SMB_XMALLOC_P(struct vfs_init_function_entry);
84 entry->name = smb_xstrdup(name);
85 entry->fns = fns;
86
87 DLIST_ADD(backends, entry);
88 DEBUG(5, ("Successfully added vfs backend '%s'\n", name));
89 return NT_STATUS_OK;
90 }
91
92 /****************************************************************************
93 initialise default vfs hooks
94 ****************************************************************************/
95
96 static void vfs_init_default(connection_struct *conn)
97 {
98 DEBUG(3, ("Initialising default vfs hooks\n"));
99 vfs_init_custom(conn, DEFAULT_VFS_MODULE_NAME);
100 }
101
102 /****************************************************************************
103 initialise custom vfs hooks
104 ****************************************************************************/
105
106 bool vfs_init_custom(connection_struct *conn, const char *vfs_object)
107 {
108 char *module_path = NULL;
109 char *module_name = NULL;
110 char *module_param = NULL, *p;
111 vfs_handle_struct *handle;
112 const struct vfs_init_function_entry *entry;
113
114 if (!conn||!vfs_object||!vfs_object[0]) {
115 DEBUG(0, ("vfs_init_custom() called with NULL pointer or "
116 "empty vfs_object!\n"));
117 return False;
118 }
119
120 if(!backends) {
121 static_init_vfs;
122 }
123
124 DEBUG(3, ("Initialising custom vfs hooks from [%s]\n", vfs_object));
125
126 module_path = smb_xstrdup(vfs_object);
127
128 p = strchr_m(module_path, ':');
129
130 if (p) {
131 *p = 0;
132 module_param = p+1;
133 trim_char(module_param, ' ', ' ');
134 }
135
136 trim_char(module_path, ' ', ' ');
137
138 module_name = smb_xstrdup(module_path);
139
140 if ((module_name[0] == '/') &&
141 (strcmp(module_path, DEFAULT_VFS_MODULE_NAME) != 0)) {
142
143 /*
144 * Extract the module name from the path. Just use the base
145 * name of the last path component.
146 */
147
148 SAFE_FREE(module_name);
149 module_name = smb_xstrdup(strrchr_m(module_path, '/')+1);
150
151 p = strchr_m(module_name, '.');
152
153 if (p != NULL) {
154 *p = '\0';
155 }
156 }
157
158 /* First, try to load the module with the new module system */
159 entry = vfs_find_backend_entry(module_name);
160 if (!entry) {
161 NTSTATUS status;
162
163 DEBUG(5, ("vfs module [%s] not loaded - trying to load...\n",
164 vfs_object));
165
166 status = smb_probe_module("vfs", module_path);
167 if (!NT_STATUS_IS_OK(status)) {
168 DEBUG(0, ("error probing vfs module '%s': %s\n",
169 module_path, nt_errstr(status)));
170 goto fail;
171 }
172
173 entry = vfs_find_backend_entry(module_name);
174 if (!entry) {
175 DEBUG(0,("Can't find a vfs module [%s]\n",vfs_object));
176 goto fail;
177 }
178 }
179
180 DEBUGADD(5,("Successfully loaded vfs module [%s] with the new modules system\n", vfs_object));
181
182 handle = TALLOC_ZERO_P(conn, vfs_handle_struct);
183 if (!handle) {
184 DEBUG(0,("TALLOC_ZERO() failed!\n"));
185 goto fail;
186 }
187 handle->conn = conn;
188 handle->fns = entry->fns;
189 if (module_param) {
190 handle->param = talloc_strdup(conn, module_param);
191 }
192 DLIST_ADD(conn->vfs_handles, handle);
193
194 SAFE_FREE(module_path);
195 SAFE_FREE(module_name);
196 return True;
197
198 fail:
199 SAFE_FREE(module_path);
200 SAFE_FREE(module_name);
201 return False;
202 }
203
204 /*****************************************************************
205 Allow VFS modules to extend files_struct with VFS-specific state.
206 This will be ok for small numbers of extensions, but might need to
207 be refactored if it becomes more widely used.
208 ******************************************************************/
209
210 #define EXT_DATA_AREA(e) ((uint8 *)(e) + sizeof(struct vfs_fsp_data))
211
212 void *vfs_add_fsp_extension_notype(vfs_handle_struct *handle,
213 files_struct *fsp, size_t ext_size,
214 void (*destroy_fn)(void *p_data))
215 {
216 struct vfs_fsp_data *ext;
217 void * ext_data;
218
219 /* Prevent VFS modules adding multiple extensions. */
220 if ((ext_data = vfs_fetch_fsp_extension(handle, fsp))) {
221 return ext_data;
222 }
223
224 ext = (struct vfs_fsp_data *)TALLOC_ZERO(
225 handle->conn, sizeof(struct vfs_fsp_data) + ext_size);
226 if (ext == NULL) {
227 return NULL;
228 }
229
230 ext->owner = handle;
231 ext->next = fsp->vfs_extension;
232 ext->destroy = destroy_fn;
233 fsp->vfs_extension = ext;
234 return EXT_DATA_AREA(ext);
235 }
236
237 void vfs_remove_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
238 {
239 struct vfs_fsp_data *curr;
240 struct vfs_fsp_data *prev;
241
242 for (curr = fsp->vfs_extension, prev = NULL;
243 curr;
244 prev = curr, curr = curr->next) {
245 if (curr->owner == handle) {
246 if (prev) {
247 prev->next = curr->next;
248 } else {
249 fsp->vfs_extension = curr->next;
250 }
251 if (curr->destroy) {
252 curr->destroy(EXT_DATA_AREA(curr));
253 }
254 TALLOC_FREE(curr);
255 return;
256 }
257 }
258 }
259
260 void *vfs_memctx_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
261 {
262 struct vfs_fsp_data *head;
263
264 for (head = fsp->vfs_extension; head; head = head->next) {
265 if (head->owner == handle) {
266 return head;
267 }
268 }
269
270 return NULL;
271 }
272
273 void *vfs_fetch_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
274 {
275 struct vfs_fsp_data *head;
276
277 head = (struct vfs_fsp_data *)vfs_memctx_fsp_extension(handle, fsp);
278 if (head != NULL) {
279 return EXT_DATA_AREA(head);
280 }
281
282 return NULL;
283 }
284
285 #undef EXT_DATA_AREA
286
287 /*****************************************************************
288 Generic VFS init.
289 ******************************************************************/
290
291 bool smbd_vfs_init(connection_struct *conn)
292 {
293 const char **vfs_objects;
294 unsigned int i = 0;
295 int j = 0;
296
297 /* Normal share - initialise with disk access functions */
298 vfs_init_default(conn);
299 vfs_objects = lp_vfs_objects(SNUM(conn));
300
301 /* Override VFS functions if 'vfs object' was not specified*/
302 if (!vfs_objects || !vfs_objects[0])
303 return True;
304
305 for (i=0; vfs_objects[i] ;) {
306 i++;
307 }
308
309 for (j=i-1; j >= 0; j--) {
310 if (!vfs_init_custom(conn, vfs_objects[j])) {
311 DEBUG(0, ("smbd_vfs_init: vfs_init_custom failed for %s\n", vfs_objects[j]));
312 return False;
313 }
314 }
315 return True;
316 }
317
318 /*******************************************************************
319 Check if a file exists in the vfs.
320 ********************************************************************/
321
322 NTSTATUS vfs_file_exist(connection_struct *conn, struct smb_filename *smb_fname)
323 {
324 /* Only return OK if stat was successful and S_ISREG */
325 if ((SMB_VFS_STAT(conn, smb_fname) != -1) &&
326 S_ISREG(smb_fname->st.st_ex_mode)) {
327 return NT_STATUS_OK;
328 }
329
330 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
331 }
332
333 /****************************************************************************
334 Read data from fsp on the vfs. (note: EINTR re-read differs from vfs_write_data)
335 ****************************************************************************/
336
337 ssize_t vfs_read_data(files_struct *fsp, char *buf, size_t byte_count)
338 {
339 size_t total=0;
340
341 while (total < byte_count)
342 {
343 ssize_t ret = SMB_VFS_READ(fsp, buf + total,
344 byte_count - total);
345
346 if (ret == 0) return total;
347 if (ret == -1) {
348 if (errno == EINTR)
349 continue;
350 else
351 return -1;
352 }
353 total += ret;
354 }
355 return (ssize_t)total;
356 }
357
358 ssize_t vfs_pread_data(files_struct *fsp, char *buf,
359 size_t byte_count, SMB_OFF_T offset)
360 {
361 size_t total=0;
362
363 while (total < byte_count)
364 {
365 ssize_t ret = SMB_VFS_PREAD(fsp, buf + total,
366 byte_count - total, offset + total);
367
368 if (ret == 0) return total;
369 if (ret == -1) {
370 if (errno == EINTR)
371 continue;
372 else
373 return -1;
374 }
375 total += ret;
376 }
377 return (ssize_t)total;
378 }
379
380 /****************************************************************************
381 Write data to a fd on the vfs.
382 ****************************************************************************/
383
384 ssize_t vfs_write_data(struct smb_request *req,
385 files_struct *fsp,
386 const char *buffer,
387 size_t N)
388 {
389 size_t total=0;
390 ssize_t ret;
391
392 if (req && req->unread_bytes) {
393 SMB_ASSERT(req->unread_bytes == N);
394 /* VFS_RECVFILE must drain the socket
395 * before returning. */
396 req->unread_bytes = 0;
397 return SMB_VFS_RECVFILE(req->sconn->sock,
398 fsp,
399 (SMB_OFF_T)-1,
400 N);
401 }
402
403 while (total < N) {
404 ret = SMB_VFS_WRITE(fsp, buffer + total, N - total);
405
406 if (ret == -1)
407 return -1;
408 if (ret == 0)
409 return total;
410
411 total += ret;
412 }
413 return (ssize_t)total;
414 }
415
416 ssize_t vfs_pwrite_data(struct smb_request *req,
417 files_struct *fsp,
418 const char *buffer,
419 size_t N,
420 SMB_OFF_T offset)
421 {
422 size_t total=0;
423 ssize_t ret;
424
425 if (req && req->unread_bytes) {
426 SMB_ASSERT(req->unread_bytes == N);
427 /* VFS_RECVFILE must drain the socket
428 * before returning. */
429 req->unread_bytes = 0;
430 return SMB_VFS_RECVFILE(req->sconn->sock,
431 fsp,
432 offset,
433 N);
434 }
435
436 while (total < N) {
437 ret = SMB_VFS_PWRITE(fsp, buffer + total, N - total,
438 offset + total);
439
440 if (ret == -1)
441 return -1;
442 if (ret == 0)
443 return total;
444
445 total += ret;
446 }
447 return (ssize_t)total;
448 }
449 /****************************************************************************
450 An allocate file space call using the vfs interface.
451 Allocates space for a file from a filedescriptor.
452 Returns 0 on success, -1 on failure.
453 ****************************************************************************/
454
455 int vfs_allocate_file_space(files_struct *fsp, uint64_t len)
456 {
457 int ret;
458 SMB_STRUCT_STAT st;
459 connection_struct *conn = fsp->conn;
460 uint64_t space_avail;
461 uint64_t bsize,dfree,dsize;
462
463 /*
464 * Actually try and commit the space on disk....
465 */
466
467 DEBUG(10,("vfs_allocate_file_space: file %s, len %.0f\n",
468 fsp_str_dbg(fsp), (double)len));
469
470 if (((SMB_OFF_T)len) < 0) {
471 DEBUG(0,("vfs_allocate_file_space: %s negative len "
472 "requested.\n", fsp_str_dbg(fsp)));
473 errno = EINVAL;
474 return -1;
475 }
476
477 ret = SMB_VFS_FSTAT(fsp, &st);
478 if (ret == -1)
479 return ret;
480
481 if (len == (uint64_t)st.st_ex_size)
482 return 0;
483
484 if (len < (uint64_t)st.st_ex_size) {
485 /* Shrink - use ftruncate. */
486
487 DEBUG(10,("vfs_allocate_file_space: file %s, shrink. Current "
488 "size %.0f\n", fsp_str_dbg(fsp),
489 (double)st.st_ex_size));
490
491 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_ALLOC_SHRINK);
492
493 flush_write_cache(fsp, SIZECHANGE_FLUSH);
494 if ((ret = SMB_VFS_FTRUNCATE(fsp, (SMB_OFF_T)len)) != -1) {
495 set_filelen_write_cache(fsp, len);
496 }
497
498 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_ALLOC_SHRINK);
499
500 return ret;
501 }
502
503 /* Grow - we need to test if we have enough space. */
504
505 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_ALLOC_GROW);
506 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_ALLOC_GROW);
507
508 if (!lp_strict_allocate(SNUM(fsp->conn)))
509 return 0;
510
511 len -= st.st_ex_size;
512 len /= 1024; /* Len is now number of 1k blocks needed. */
513 space_avail = get_dfree_info(conn, fsp->fsp_name->base_name, false,
514 &bsize, &dfree, &dsize);
515 if (space_avail == (uint64_t)-1) {
516 return -1;
517 }
518
519 DEBUG(10,("vfs_allocate_file_space: file %s, grow. Current size %.0f, "
520 "needed blocks = %.0f, space avail = %.0f\n",
521 fsp_str_dbg(fsp), (double)st.st_ex_size, (double)len,
522 (double)space_avail));
523
524 if (len > space_avail) {
525 errno = ENOSPC;
526 return -1;
527 }
528
529 return 0;
530 }
531
532 /****************************************************************************
533 A vfs set_filelen call.
534 set the length of a file from a filedescriptor.
535 Returns 0 on success, -1 on failure.
536 ****************************************************************************/
537
538 int vfs_set_filelen(files_struct *fsp, SMB_OFF_T len)
539 {
540 int ret;
541
542 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_SET_FILE_LEN);
543
544 DEBUG(10,("vfs_set_filelen: ftruncate %s to len %.0f\n",
545 fsp_str_dbg(fsp), (double)len));
546 flush_write_cache(fsp, SIZECHANGE_FLUSH);
547 if ((ret = SMB_VFS_FTRUNCATE(fsp, len)) != -1) {
548 set_filelen_write_cache(fsp, len);
549 notify_fname(fsp->conn, NOTIFY_ACTION_MODIFIED,
550 FILE_NOTIFY_CHANGE_SIZE
551 | FILE_NOTIFY_CHANGE_ATTRIBUTES,
552 fsp->fsp_name->base_name);
553 }
554
555 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_SET_FILE_LEN);
556
557 return ret;
558 }
559
560 /****************************************************************************
561 A vfs fill sparse call.
562 Writes zeros from the end of file to len, if len is greater than EOF.
563 Used only by strict_sync.
564 Returns 0 on success, -1 on failure.
565 ****************************************************************************/
566
567 #define SPARSE_BUF_WRITE_SIZE (32*1024)
568
569 int vfs_fill_sparse(files_struct *fsp, SMB_OFF_T len)
570 {
571 int ret;
572 SMB_STRUCT_STAT st;
573 SMB_OFF_T offset;
574 size_t total;
575 size_t num_to_write;
576 ssize_t pwrite_ret;
577
578 ret = SMB_VFS_FSTAT(fsp, &st);
579 if (ret == -1) {
580 return ret;
581 }
582
583 if (len <= st.st_ex_size) {
584 return 0;
585 }
586
587 DEBUG(10,("vfs_fill_sparse: write zeros in file %s from len %.0f to "
588 "len %.0f (%.0f bytes)\n", fsp_str_dbg(fsp),
589 (double)st.st_ex_size, (double)len,
590 (double)(len - st.st_ex_size)));
591
592 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_FILL_SPARSE);
593
594 flush_write_cache(fsp, SIZECHANGE_FLUSH);
595
596 if (!sparse_buf) {
597 sparse_buf = SMB_CALLOC_ARRAY(char, SPARSE_BUF_WRITE_SIZE);
598 if (!sparse_buf) {
599 errno = ENOMEM;
600 ret = -1;
601 goto out;
602 }
603 }
604
605 offset = st.st_ex_size;
606 num_to_write = len - st.st_ex_size;
607 total = 0;
608
609 while (total < num_to_write) {
610 size_t curr_write_size = MIN(SPARSE_BUF_WRITE_SIZE, (num_to_write - total));
611
612 pwrite_ret = SMB_VFS_PWRITE(fsp, sparse_buf, curr_write_size, offset + total);
613 if (pwrite_ret == -1) {
614 DEBUG(10,("vfs_fill_sparse: SMB_VFS_PWRITE for file "
615 "%s failed with error %s\n",
616 fsp_str_dbg(fsp), strerror(errno)));
617 ret = -1;
618 goto out;
619 }
620 if (pwrite_ret == 0) {
621 ret = 0;
622 goto out;
623 }
624
625 total += pwrite_ret;
626 }
627
628 set_filelen_write_cache(fsp, len);
629
630 ret = 0;
631 out:
632 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_FILL_SPARSE);
633 return ret;
634 }
635
636 /****************************************************************************
637 Transfer some data (n bytes) between two file_struct's.
638 ****************************************************************************/
639
640 static ssize_t vfs_read_fn(void *file, void *buf, size_t len)
641 {
642 struct files_struct *fsp = (struct files_struct *)file;
643
644 return SMB_VFS_READ(fsp, buf, len);
645 }
646
647 static ssize_t vfs_write_fn(void *file, const void *buf, size_t len)
648 {
649 struct files_struct *fsp = (struct files_struct *)file;
650
651 return SMB_VFS_WRITE(fsp, buf, len);
652 }
653
654 SMB_OFF_T vfs_transfer_file(files_struct *in, files_struct *out, SMB_OFF_T n)
655 {
656 return transfer_file_internal((void *)in, (void *)out, n,
657 vfs_read_fn, vfs_write_fn);
658 }
659
660 /*******************************************************************
661 A vfs_readdir wrapper which just returns the file name.
662 ********************************************************************/
663
664 const char *vfs_readdirname(connection_struct *conn, void *p,
665 SMB_STRUCT_STAT *sbuf, char **talloced)
666 {
667 SMB_STRUCT_DIRENT *ptr= NULL;
668 const char *dname;
669 char *translated;
670 NTSTATUS status;
671
672 if (!p)
673 return(NULL);
674
675 ptr = SMB_VFS_READDIR(conn, (DIR *)p, sbuf);
676 if (!ptr)
677 return(NULL);
678
679 dname = ptr->d_name;
680
681
682 #ifdef NEXT2
683 if (telldir(p) < 0)
684 return(NULL);
685 #endif
686
687 #ifdef HAVE_BROKEN_READDIR_NAME
688 /* using /usr/ucb/cc is BAD */
689 dname = dname - 2;
690 #endif
691
692 status = SMB_VFS_TRANSLATE_NAME(conn, dname, vfs_translate_to_windows,
693 talloc_tos(), &translated);
694 if (NT_STATUS_EQUAL(status, NT_STATUS_NONE_MAPPED)) {
695 *talloced = NULL;
696 return dname;
697 }
698 *talloced = translated;
699 if (!NT_STATUS_IS_OK(status)) {
700 return NULL;
701 }
702 return translated;
703 }
704
705 /*******************************************************************
706 A wrapper for vfs_chdir().
707 ********************************************************************/
708
709 int vfs_ChDir(connection_struct *conn, const char *path)
710 {
711 int res;
712
713 if (!LastDir) {
714 LastDir = SMB_STRDUP("");
715 }
716
717 if (strcsequal(path,"."))
718 return(0);
719
720 if (*path == '/' && strcsequal(LastDir,path))
721 return(0);
722
723 DEBUG(4,("vfs_ChDir to %s\n",path));
724
725 res = SMB_VFS_CHDIR(conn,path);
726 if (!res) {
727 SAFE_FREE(LastDir);
728 LastDir = SMB_STRDUP(path);
729 }
730 return(res);
731 }
732
733 /*******************************************************************
734 Return the absolute current directory path - given a UNIX pathname.
735 Note that this path is returned in DOS format, not UNIX
736 format. Note this can be called with conn == NULL.
737 ********************************************************************/
738
739 char *vfs_GetWd(TALLOC_CTX *ctx, connection_struct *conn)
740 {
741 char s[PATH_MAX+1];
742 char *result = NULL;
743 DATA_BLOB cache_value;
744 struct file_id key;
745 struct smb_filename *smb_fname_dot = NULL;
746 struct smb_filename *smb_fname_full = NULL;
747 NTSTATUS status;
748
749 *s = 0;
750
751 if (!lp_getwd_cache()) {
752 goto nocache;
753 }
754
755 status = create_synthetic_smb_fname(ctx, ".", NULL, NULL,
756 &smb_fname_dot);
757 if (!NT_STATUS_IS_OK(status)) {
758 errno = map_errno_from_nt_status(status);
759 goto out;
760 }
761
762 if (SMB_VFS_STAT(conn, smb_fname_dot) == -1) {
763 /*
764 * Known to fail for root: the directory may be NFS-mounted
765 * and exported with root_squash (so has no root access).
766 */
767 DEBUG(1,("vfs_GetWd: couldn't stat \".\" error %s "
768 "(NFS problem ?)\n", strerror(errno) ));
769 goto nocache;
770 }
771
772 key = vfs_file_id_from_sbuf(conn, &smb_fname_dot->st);
773
774 if (!memcache_lookup(smbd_memcache(), GETWD_CACHE,
775 data_blob_const(&key, sizeof(key)),
776 &cache_value)) {
777 goto nocache;
778 }
779
780 SMB_ASSERT((cache_value.length > 0)
781 && (cache_value.data[cache_value.length-1] == '\0'));
782
783 status = create_synthetic_smb_fname(ctx, (char *)cache_value.data,
784 NULL, NULL, &smb_fname_full);
785 if (!NT_STATUS_IS_OK(status)) {
786 errno = map_errno_from_nt_status(status);
787 goto out;
788 }
789
790 if ((SMB_VFS_STAT(conn, smb_fname_full) == 0) &&
791 (smb_fname_dot->st.st_ex_dev == smb_fname_full->st.st_ex_dev) &&
792 (smb_fname_dot->st.st_ex_ino == smb_fname_full->st.st_ex_ino) &&
793 (S_ISDIR(smb_fname_dot->st.st_ex_mode))) {
794 /*
795 * Ok, we're done
796 */
797 result = talloc_strdup(ctx, smb_fname_full->base_name);
798 if (result == NULL) {
799 errno = ENOMEM;
800 }
801 goto out;
802 }
803
804 nocache:
805
806 /*
807 * We don't have the information to hand so rely on traditional
808 * methods. The very slow getcwd, which spawns a process on some
809 * systems, or the not quite so bad getwd.
810 */
811
812 if (!SMB_VFS_GETWD(conn,s)) {
813 DEBUG(0, ("vfs_GetWd: SMB_VFS_GETWD call failed: %s\n",
814 strerror(errno)));
815 goto out;
816 }
817
818 if (lp_getwd_cache() && VALID_STAT(smb_fname_dot->st)) {
819 key = vfs_file_id_from_sbuf(conn, &smb_fname_dot->st);
820
821 memcache_add(smbd_memcache(), GETWD_CACHE,
822 data_blob_const(&key, sizeof(key)),
823 data_blob_const(s, strlen(s)+1));
824 }
825
826 result = talloc_strdup(ctx, s);
827 if (result == NULL) {
828 errno = ENOMEM;
829 }
830
831 out:
832 TALLOC_FREE(smb_fname_dot);
833 TALLOC_FREE(smb_fname_full);
834 return result;
835 }
836
837 /*******************************************************************
838 Reduce a file name, removing .. elements and checking that
839 it is below dir in the heirachy. This uses realpath.
840 ********************************************************************/
841
842 NTSTATUS check_reduced_name(connection_struct *conn, const char *fname)
843 {
844 char *resolved_name = NULL;
845 char *p = NULL;
846
847 DEBUG(3,("check_reduced_name [%s] [%s]\n", fname, conn->connectpath));
848
849 resolved_name = SMB_VFS_REALPATH(conn,fname);
850
851 if (!resolved_name) {
852 switch (errno) {
853 case ENOTDIR:
854 DEBUG(3,("check_reduced_name: Component not a "
855 "directory in getting realpath for "
856 "%s\n", fname));
857 return NT_STATUS_OBJECT_PATH_NOT_FOUND;
858 case ENOENT:
859 {
860 TALLOC_CTX *ctx = talloc_tos();
861 char *tmp_fname = NULL;
862 char *last_component = NULL;
863 /* Last component didn't exist. Remove it and try and canonicalise the directory. */
864
865 tmp_fname = talloc_strdup(ctx, fname);
866 if (!tmp_fname) {
867 return NT_STATUS_NO_MEMORY;
868 }
869 p = strrchr_m(tmp_fname, '/');
870 if (p) {
871 *p++ = '\0';
872 last_component = p;
873 } else {
874 last_component = tmp_fname;
875 tmp_fname = talloc_strdup(ctx,
876 ".");
877 if (!tmp_fname) {
878 return NT_STATUS_NO_MEMORY;
879 }
880 }
881
882 resolved_name = SMB_VFS_REALPATH(conn,tmp_fname);
883 if (!resolved_name) {
884 NTSTATUS status = map_nt_error_from_unix(errno);
885
886 if (errno == ENOENT || errno == ENOTDIR) {
887 status = NT_STATUS_OBJECT_PATH_NOT_FOUND;
888 }
889
890 DEBUG(3,("check_reduce_named: "
891 "couldn't get realpath for "
892 "%s (%s)\n",
893 fname,
894 nt_errstr(status)));
895 return status;
896 }
897 tmp_fname = talloc_asprintf(ctx,
898 "%s/%s",
899 resolved_name,
900 last_component);
901 if (!tmp_fname) {
902 return NT_STATUS_NO_MEMORY;
903 }
904 SAFE_FREE(resolved_name);
905 resolved_name = SMB_STRDUP(tmp_fname);
906 if (!resolved_name) {
907 DEBUG(0, ("check_reduced_name: malloc "
908 "fail for %s\n", tmp_fname));
909 return NT_STATUS_NO_MEMORY;
910 }
911 break;
912 }
913 default:
914 DEBUG(3,("check_reduced_name: couldn't get "
915 "realpath for %s\n", fname));
916 return map_nt_error_from_unix(errno);
917 }
918 }
919
920 DEBUG(10,("check_reduced_name realpath [%s] -> [%s]\n", fname,
921 resolved_name));
922
923 if (*resolved_name != '/') {
924 DEBUG(0,("check_reduced_name: realpath doesn't return "
925 "absolute paths !\n"));
926 SAFE_FREE(resolved_name);
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 "
937 "conn_rootdir\n"));
938 SAFE_FREE(resolved_name);
939 return NT_STATUS_ACCESS_DENIED;
940 }
941
942 if (strncmp(conn_rootdir, resolved_name,
943 strlen(conn_rootdir)) != 0) {
944 DEBUG(2, ("check_reduced_name: Bad access "
945 "attempt: %s is a symlink outside the "
946 "share path\n", fname));
947 SAFE_FREE(resolved_name);
948 return NT_STATUS_ACCESS_DENIED;
949 }
950 }
951
952 /* Check if we are allowing users to follow symlinks */
953 /* Patch from David Clerc <David.Clerc@cui.unige.ch>
954 University of Geneva */
955
956 #ifdef S_ISLNK
957 if (!lp_symlinks(SNUM(conn))) {
958 struct smb_filename *smb_fname = NULL;
959 NTSTATUS status;
960
961 status = create_synthetic_smb_fname(talloc_tos(), fname, NULL,
962 NULL, &smb_fname);
963 if (!NT_STATUS_IS_OK(status)) {
964 SAFE_FREE(resolved_name);
965 return status;
966 }
967
968 if ( (SMB_VFS_LSTAT(conn, smb_fname) != -1) &&
969 (S_ISLNK(smb_fname->st.st_ex_mode)) ) {
970 SAFE_FREE(resolved_name);
971 DEBUG(3,("check_reduced_name: denied: file path name "
972 "%s is a symlink\n",resolved_name));
973 TALLOC_FREE(smb_fname);
974 return NT_STATUS_ACCESS_DENIED;
975 }
976 TALLOC_FREE(smb_fname);
977 }
978 #endif
979
980 DEBUG(3,("check_reduced_name: %s reduced to %s\n", fname,
981 resolved_name));
982 SAFE_FREE(resolved_name);
983 return NT_STATUS_OK;
984 }
985
986 /**
987 * XXX: This is temporary and there should be no callers of this once
988 * smb_filename is plumbed through all path based operations.
989 */
990 int vfs_stat_smb_fname(struct connection_struct *conn, const char *fname,
991 SMB_STRUCT_STAT *psbuf)
992 {
993 struct smb_filename *smb_fname = NULL;
994 NTSTATUS status;
995 int ret;
996
997 status = create_synthetic_smb_fname_split(talloc_tos(), fname, NULL,
998 &smb_fname);
999 if (!NT_STATUS_IS_OK(status)) {
1000 errno = map_errno_from_nt_status(status);
1001 return -1;
1002 }
1003
1004 if (lp_posix_pathnames()) {
1005 ret = SMB_VFS_LSTAT(conn, smb_fname);
1006 } else {
1007 ret = SMB_VFS_STAT(conn, smb_fname);
1008 }
1009
1010 if (ret != -1) {
1011 *psbuf = smb_fname->st;
1012 }
1013
1014 TALLOC_FREE(smb_fname);
1015 return ret;
1016 }
1017
1018 /**
1019 * XXX: This is temporary and there should be no callers of this once
1020 * smb_filename is plumbed through all path based operations.
1021 */
1022 int vfs_lstat_smb_fname(struct connection_struct *conn, const char *fname,
1023 SMB_STRUCT_STAT *psbuf)
1024 {
1025 struct smb_filename *smb_fname = NULL;
1026 NTSTATUS status;
1027 int ret;
1028
1029 status = create_synthetic_smb_fname_split(talloc_tos(), fname, NULL,
1030 &smb_fname);
1031 if (!NT_STATUS_IS_OK(status)) {
1032 errno = map_errno_from_nt_status(status);
1033 return -1;
1034 }
1035
1036 ret = SMB_VFS_LSTAT(conn, smb_fname);
1037 if (ret != -1) {
1038 *psbuf = smb_fname->st;
1039 }
1040
1041 TALLOC_FREE(smb_fname);
1042 return ret;
1043 }
1044
1045 /**
1046 * Ensure LSTAT is called for POSIX paths.
1047 */
1048
1049 NTSTATUS vfs_stat_fsp(files_struct *fsp)
1050 {
1051 int ret;
1052
1053 if(fsp->is_directory || fsp->fh->fd == -1) {
1054 if (fsp->posix_open) {
1055 ret = SMB_VFS_LSTAT(fsp->conn, fsp->fsp_name);
1056 } else {
1057 ret = SMB_VFS_STAT(fsp->conn, fsp->fsp_name);
1058 }
1059 if (ret == -1) {
1060 return map_nt_error_from_unix(errno);
1061 }
1062 } else {
1063 if(SMB_VFS_FSTAT(fsp, &fsp->fsp_name->st) != 0) {
1064 return map_nt_error_from_unix(errno);
1065 }
1066 }
1067 return NT_STATUS_OK;
1068 }
1069
1070 /*
1071 generate a file_id from a stat structure
1072 */
1073 struct file_id vfs_file_id_from_sbuf(connection_struct *conn, const SMB_STRUCT_STAT *sbuf)
1074 {
1075 return SMB_VFS_FILE_ID_CREATE(conn, sbuf);
1076 }
1077
1078 int smb_vfs_call_connect(struct vfs_handle_struct *handle,
1079 const char *service, const char *user)
1080 {
1081 VFS_FIND(connect_fn);
1082 return handle->fns->connect_fn(handle, service, user);
1083 }
1084
1085 void smb_vfs_call_disconnect(struct vfs_handle_struct *handle)
1086 {
1087 VFS_FIND(disconnect);
1088 handle->fns->disconnect(handle);
1089 }
1090
1091 uint64_t smb_vfs_call_disk_free(struct vfs_handle_struct *handle,
1092 const char *path, bool small_query,
1093 uint64_t *bsize, uint64_t *dfree,
1094 uint64_t *dsize)
1095 {
1096 VFS_FIND(disk_free);
1097 return handle->fns->disk_free(handle, path, small_query, bsize, dfree,
1098 dsize);
1099 }
1100
1101 int smb_vfs_call_get_quota(struct vfs_handle_struct *handle,
1102 enum SMB_QUOTA_TYPE qtype, unid_t id,
1103 SMB_DISK_QUOTA *qt)
1104 {
1105 VFS_FIND(get_quota);
1106 return handle->fns->get_quota(handle, qtype, id, qt);
1107 }
1108
1109 int smb_vfs_call_set_quota(struct vfs_handle_struct *handle,
1110 enum SMB_QUOTA_TYPE qtype, unid_t id,
1111 SMB_DISK_QUOTA *qt)
1112 {
1113 VFS_FIND(set_quota);
1114 return handle->fns->set_quota(handle, qtype, id, qt);
1115 }
1116
1117 int smb_vfs_call_get_shadow_copy_data(struct vfs_handle_struct *handle,
1118 struct files_struct *fsp,
1119 SHADOW_COPY_DATA *shadow_copy_data,
1120 bool labels)
1121 {
1122 VFS_FIND(get_shadow_copy_data);
1123 return handle->fns->get_shadow_copy_data(handle, fsp, shadow_copy_data,
1124 labels);
1125 }
1126 int smb_vfs_call_statvfs(struct vfs_handle_struct *handle, const char *path,
1127 struct vfs_statvfs_struct *statbuf)
1128 {
1129 VFS_FIND(statvfs);
1130 return handle->fns->statvfs(handle, path, statbuf);
1131 }
1132
1133 uint32_t smb_vfs_call_fs_capabilities(struct vfs_handle_struct *handle,
1134 enum timestamp_set_resolution *p_ts_res)
1135 {
1136 VFS_FIND(fs_capabilities);
1137 return handle->fns->fs_capabilities(handle, p_ts_res);
1138 }
1139
1140 SMB_STRUCT_DIR *smb_vfs_call_opendir(struct vfs_handle_struct *handle,
1141 const char *fname, const char *mask,
1142 uint32 attributes)
1143 {
1144 VFS_FIND(opendir);
1145 return handle->fns->opendir(handle, fname, mask, attributes);
1146 }
1147
1148 SMB_STRUCT_DIRENT *smb_vfs_call_readdir(struct vfs_handle_struct *handle,
1149 SMB_STRUCT_DIR *dirp,
1150 SMB_STRUCT_STAT *sbuf)
1151 {
1152 VFS_FIND(readdir);
1153 return handle->fns->readdir(handle, dirp, sbuf);
1154 }
1155
1156 void smb_vfs_call_seekdir(struct vfs_handle_struct *handle,
1157 SMB_STRUCT_DIR *dirp, long offset)
1158 {
1159 VFS_FIND(seekdir);
1160 handle->fns->seekdir(handle, dirp, offset);
1161 }
1162
1163 long smb_vfs_call_telldir(struct vfs_handle_struct *handle,
1164 SMB_STRUCT_DIR *dirp)
1165 {
1166 VFS_FIND(telldir);
1167 return handle->fns->telldir(handle, dirp);
1168 }
1169
1170 void smb_vfs_call_rewind_dir(struct vfs_handle_struct *handle,
1171 SMB_STRUCT_DIR *dirp)
1172 {
1173 VFS_FIND(rewind_dir);
1174 handle->fns->rewind_dir(handle, dirp);
1175 }
1176
1177 int smb_vfs_call_mkdir(struct vfs_handle_struct *handle, const char *path,
1178 mode_t mode)
1179 {
1180 VFS_FIND(mkdir);
1181 return handle->fns->mkdir(handle, path, mode);
1182 }
1183
1184 int smb_vfs_call_rmdir(struct vfs_handle_struct *handle, const char *path)
1185 {
1186 VFS_FIND(rmdir);
1187 return handle->fns->rmdir(handle, path);
1188 }
1189
1190 int smb_vfs_call_closedir(struct vfs_handle_struct *handle,
1191 SMB_STRUCT_DIR *dir)
1192 {
1193 VFS_FIND(closedir);
1194 return handle->fns->closedir(handle, dir);
1195 }
1196
1197 void smb_vfs_call_init_search_op(struct vfs_handle_struct *handle,
1198 SMB_STRUCT_DIR *dirp)
1199 {
1200 VFS_FIND(init_search_op);
1201 handle->fns->init_search_op(handle, dirp);
1202 }
1203
1204 int smb_vfs_call_open(struct vfs_handle_struct *handle,
1205 struct smb_filename *smb_fname, struct files_struct *fsp,
1206 int flags, mode_t mode)
1207 {
1208 VFS_FIND(open);
1209 return handle->fns->open(handle, smb_fname, fsp, flags, mode);
1210 }
1211
1212 NTSTATUS smb_vfs_call_create_file(struct vfs_handle_struct *handle,
1213 struct smb_request *req,
1214 uint16_t root_dir_fid,
1215 struct smb_filename *smb_fname,
1216 uint32_t access_mask,
1217 uint32_t share_access,
1218 uint32_t create_disposition,
1219 uint32_t create_options,
1220 uint32_t file_attributes,
1221 uint32_t oplock_request,
1222 uint64_t allocation_size,
1223 uint32_t private_flags,
1224 struct security_descriptor *sd,
1225 struct ea_list *ea_list,
1226 files_struct **result,
1227 int *pinfo)
1228 {
1229 VFS_FIND(create_file);
1230 return handle->fns->create_file(
1231 handle, req, root_dir_fid, smb_fname, access_mask,
1232 share_access, create_disposition, create_options,
1233 file_attributes, oplock_request, allocation_size,
1234 private_flags, sd, ea_list,
1235 result, pinfo);
1236 }
1237
1238 int smb_vfs_call_close_fn(struct vfs_handle_struct *handle,
1239 struct files_struct *fsp)
1240 {
1241 VFS_FIND(close_fn);
1242 return handle->fns->close_fn(handle, fsp);
1243 }
1244
1245 ssize_t smb_vfs_call_vfs_read(struct vfs_handle_struct *handle,
1246 struct files_struct *fsp, void *data, size_t n)
1247 {
1248 VFS_FIND(vfs_read);
1249 return handle->fns->vfs_read(handle, fsp, data, n);
1250 }
1251
1252 ssize_t smb_vfs_call_pread(struct vfs_handle_struct *handle,
1253 struct files_struct *fsp, void *data, size_t n,
1254 SMB_OFF_T offset)
1255 {
1256 VFS_FIND(pread);
1257 return handle->fns->pread(handle, fsp, data, n, offset);
1258 }
1259
1260 ssize_t smb_vfs_call_write(struct vfs_handle_struct *handle,
1261 struct files_struct *fsp, const void *data,
1262 size_t n)
1263 {
1264 VFS_FIND(write);
1265 return handle->fns->write(handle, fsp, data, n);
1266 }
1267
1268 ssize_t smb_vfs_call_pwrite(struct vfs_handle_struct *handle,
1269 struct files_struct *fsp, const void *data,
1270 size_t n, SMB_OFF_T offset)
1271 {
1272 VFS_FIND(pwrite);
1273 return handle->fns->pwrite(handle, fsp, data, n, offset);
1274 }
1275
1276 SMB_OFF_T smb_vfs_call_lseek(struct vfs_handle_struct *handle,
1277 struct files_struct *fsp, SMB_OFF_T offset,
1278 int whence)
1279 {
1280 VFS_FIND(lseek);
1281 return handle->fns->lseek(handle, fsp, offset, whence);
1282 }
1283
1284 ssize_t smb_vfs_call_sendfile(struct vfs_handle_struct *handle, int tofd,
1285 files_struct *fromfsp, const DATA_BLOB *header,
1286 SMB_OFF_T offset, size_t count)
1287 {
1288 VFS_FIND(sendfile);
1289 return handle->fns->sendfile(handle, tofd, fromfsp, header, offset,
1290 count);
1291 }
1292
1293 ssize_t smb_vfs_call_recvfile(struct vfs_handle_struct *handle, int fromfd,
1294 files_struct *tofsp, SMB_OFF_T offset,
1295 size_t count)
1296 {
1297 VFS_FIND(recvfile);
1298 return handle->fns->recvfile(handle, fromfd, tofsp, offset, count);
1299 }
1300
1301 int smb_vfs_call_rename(struct vfs_handle_struct *handle,
1302 const struct smb_filename *smb_fname_src,
1303 const struct smb_filename *smb_fname_dst)
1304 {
1305 VFS_FIND(rename);
1306 return handle->fns->rename(handle, smb_fname_src, smb_fname_dst);
1307 }
1308
1309 int smb_vfs_call_fsync(struct vfs_handle_struct *handle,
1310 struct files_struct *fsp)
1311 {
1312 VFS_FIND(fsync);
1313 return handle->fns->fsync(handle, fsp);
1314 }
1315
1316 int smb_vfs_call_stat(struct vfs_handle_struct *handle,
1317 struct smb_filename *smb_fname)
1318 {
1319 VFS_FIND(stat);
1320 return handle->fns->stat(handle, smb_fname);
1321 }
1322
1323 int smb_vfs_call_fstat(struct vfs_handle_struct *handle,
1324 struct files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1325 {
1326 VFS_FIND(fstat);
1327 return handle->fns->fstat(handle, fsp, sbuf);
1328 }
1329
1330 int smb_vfs_call_lstat(struct vfs_handle_struct *handle,
1331 struct smb_filename *smb_filename)
1332 {
1333 VFS_FIND(lstat);
1334 return handle->fns->lstat(handle, smb_filename);
1335 }
1336
1337 uint64_t smb_vfs_call_get_alloc_size(struct vfs_handle_struct *handle,
1338 struct files_struct *fsp,
1339 const SMB_STRUCT_STAT *sbuf)
1340 {
1341 VFS_FIND(get_alloc_size);
1342 return handle->fns->get_alloc_size(handle, fsp, sbuf);
1343 }
1344
1345 int smb_vfs_call_unlink(struct vfs_handle_struct *handle,
1346 const struct smb_filename *smb_fname)
1347 {
1348 VFS_FIND(unlink);
1349 return handle->fns->unlink(handle, smb_fname);
1350 }
1351
1352 int smb_vfs_call_chmod(struct vfs_handle_struct *handle, const char *path,
1353 mode_t mode)
1354 {
1355 VFS_FIND(chmod);
1356 return handle->fns->chmod(handle, path, mode);
1357 }
1358
1359 int smb_vfs_call_fchmod(struct vfs_handle_struct *handle,
1360 struct files_struct *fsp, mode_t mode)
1361 {
1362 VFS_FIND(fchmod);
1363 return handle->fns->fchmod(handle, fsp, mode);
1364 }
1365
1366 int smb_vfs_call_chown(struct vfs_handle_struct *handle, const char *path,
1367 uid_t uid, gid_t gid)
1368 {
1369 VFS_FIND(chown);
1370 return handle->fns->chown(handle, path, uid, gid);
1371 }
1372
1373 int smb_vfs_call_fchown(struct vfs_handle_struct *handle,
1374 struct files_struct *fsp, uid_t uid, gid_t gid)
1375 {
1376 VFS_FIND(fchown);
1377 return handle->fns->fchown(handle, fsp, uid, gid);
1378 }
1379
1380 int smb_vfs_call_lchown(struct vfs_handle_struct *handle, const char *path,
1381 uid_t uid, gid_t gid)
1382 {
1383 VFS_FIND(lchown);
1384 return handle->fns->lchown(handle, path, uid, gid);
1385 }
1386
1387 int smb_vfs_call_chdir(struct vfs_handle_struct *handle, const char *path)
1388 {
1389 VFS_FIND(chdir);
1390 return handle->fns->chdir(handle, path);
1391 }
1392
1393 char *smb_vfs_call_getwd(struct vfs_handle_struct *handle, char *buf)
1394 {
1395 VFS_FIND(getwd);
1396 return handle->fns->getwd(handle, buf);
1397 }
1398
1399 int smb_vfs_call_ntimes(struct vfs_handle_struct *handle,
1400 const struct smb_filename *smb_fname,
1401 struct smb_file_time *ft)
1402 {
1403 VFS_FIND(ntimes);
1404 return handle->fns->ntimes(handle, smb_fname, ft);
1405 }
1406
1407 int smb_vfs_call_ftruncate(struct vfs_handle_struct *handle,
1408 struct files_struct *fsp, SMB_OFF_T offset)
1409 {
1410 VFS_FIND(ftruncate);
1411 return handle->fns->ftruncate(handle, fsp, offset);
1412 }
1413
1414 int smb_vfs_call_kernel_flock(struct vfs_handle_struct *handle,
1415 struct files_struct *fsp, uint32 share_mode,
1416 uint32_t access_mask)
1417 {
1418 VFS_FIND(kernel_flock);
1419 return handle->fns->kernel_flock(handle, fsp, share_mode,
1420 access_mask);
1421 }
1422
1423 int smb_vfs_call_linux_setlease(struct vfs_handle_struct *handle,
1424 struct files_struct *fsp, int leasetype)
1425 {
1426 VFS_FIND(linux_setlease);
1427 return handle->fns->linux_setlease(handle, fsp, leasetype);
1428 }
1429
1430 int smb_vfs_call_symlink(struct vfs_handle_struct *handle, const char *oldpath,
1431 const char *newpath)
1432 {
1433 VFS_FIND(symlink);
1434 return handle->fns->symlink(handle, oldpath, newpath);
1435 }
1436
1437 int smb_vfs_call_vfs_readlink(struct vfs_handle_struct *handle,
1438 const char *path, char *buf, size_t bufsiz)
1439 {
1440 VFS_FIND(vfs_readlink);
1441 return handle->fns->vfs_readlink(handle, path, buf, bufsiz);
1442 }
1443
1444 int smb_vfs_call_link(struct vfs_handle_struct *handle, const char *oldpath,
1445 const char *newpath)
1446 {
1447 VFS_FIND(link);
1448 return handle->fns->link(handle, oldpath, newpath);
1449 }
1450
1451 int smb_vfs_call_mknod(struct vfs_handle_struct *handle, const char *path,
1452 mode_t mode, SMB_DEV_T dev)
1453 {
1454 VFS_FIND(mknod);
1455 return handle->fns->mknod(handle, path, mode, dev);
1456 }
1457
1458 char *smb_vfs_call_realpath(struct vfs_handle_struct *handle, const char *path)
1459 {
1460 VFS_FIND(realpath);
1461 return handle->fns->realpath(handle, path);
1462 }
1463
1464 NTSTATUS smb_vfs_call_notify_watch(struct vfs_handle_struct *handle,
1465 struct sys_notify_context *ctx,
1466 struct notify_entry *e,
1467 void (*callback)(struct sys_notify_context *ctx,
1468 void *private_data,
1469 struct notify_event *ev),
1470 void *private_data, void *handle_p)
1471 {
1472 VFS_FIND(notify_watch);
1473 return handle->fns->notify_watch(handle, ctx, e, callback,
1474 private_data, handle_p);
1475 }
1476
1477 int smb_vfs_call_chflags(struct vfs_handle_struct *handle, const char *path,
1478 unsigned int flags)
1479 {
1480 VFS_FIND(chflags);
1481 return handle->fns->chflags(handle, path, flags);
1482 }
1483
1484 struct file_id smb_vfs_call_file_id_create(struct vfs_handle_struct *handle,
1485 const SMB_STRUCT_STAT *sbuf)
1486 {
1487 VFS_FIND(file_id_create);
1488 return handle->fns->file_id_create(handle, sbuf);
1489 }
1490
1491 NTSTATUS smb_vfs_call_streaminfo(struct vfs_handle_struct *handle,
1492 struct files_struct *fsp,
1493 const char *fname,
1494 TALLOC_CTX *mem_ctx,
1495 unsigned int *num_streams,
1496 struct stream_struct **streams)
1497 {
1498 VFS_FIND(streaminfo);
1499 return handle->fns->streaminfo(handle, fsp, fname, mem_ctx,
1500 num_streams, streams);
1501 }
1502
1503 int smb_vfs_call_get_real_filename(struct vfs_handle_struct *handle,
1504 const char *path, const char *name,
1505 TALLOC_CTX *mem_ctx, char **found_name)
1506 {
1507 VFS_FIND(get_real_filename);
1508 return handle->fns->get_real_filename(handle, path, name, mem_ctx,
1509 found_name);
1510 }
1511
1512 const char *smb_vfs_call_connectpath(struct vfs_handle_struct *handle,
1513 const char *filename)
1514 {
1515 VFS_FIND(connectpath);
1516 return handle->fns->connectpath(handle, filename);
1517 }
1518
1519 bool smb_vfs_call_strict_lock(struct vfs_handle_struct *handle,
1520 struct files_struct *fsp,
1521 struct lock_struct *plock)
1522 {
1523 VFS_FIND(strict_lock);
1524 return handle->fns->strict_lock(handle, fsp, plock);
1525 }
1526
1527 void smb_vfs_call_strict_unlock(struct vfs_handle_struct *handle,
1528 struct files_struct *fsp,
1529 struct lock_struct *plock)
1530 {
1531 VFS_FIND(strict_unlock);
1532 handle->fns->strict_unlock(handle, fsp, plock);
1533 }
1534
1535 NTSTATUS smb_vfs_call_translate_name(struct vfs_handle_struct *handle,
1536 const char *name,
1537 enum vfs_translate_direction direction,
1538 TALLOC_CTX *mem_ctx,
1539 char **mapped_name)
1540 {
1541 VFS_FIND(translate_name);
1542 return handle->fns->translate_name(handle, name, direction, mem_ctx,
1543 mapped_name);
1544 }
1545
1546 NTSTATUS smb_vfs_call_fget_nt_acl(struct vfs_handle_struct *handle,
1547 struct files_struct *fsp,
1548 uint32 security_info,
1549 struct security_descriptor **ppdesc)
1550 {
1551 VFS_FIND(fget_nt_acl);
1552 return handle->fns->fget_nt_acl(handle, fsp, security_info,
1553 ppdesc);
1554 }
1555
1556 NTSTATUS smb_vfs_call_get_nt_acl(struct vfs_handle_struct *handle,
1557 const char *name,
1558 uint32 security_info,
1559 struct security_descriptor **ppdesc)
1560 {
1561 VFS_FIND(get_nt_acl);
1562 return handle->fns->get_nt_acl(handle, name, security_info, ppdesc);
1563 }
1564
1565 NTSTATUS smb_vfs_call_fset_nt_acl(struct vfs_handle_struct *handle,
1566 struct files_struct *fsp,
1567 uint32 security_info_sent,
1568 const struct security_descriptor *psd)
1569 {
1570 VFS_FIND(fset_nt_acl);
1571 return handle->fns->fset_nt_acl(handle, fsp, security_info_sent, psd);
1572 }
1573
1574 int smb_vfs_call_chmod_acl(struct vfs_handle_struct *handle, const char *name,
1575 mode_t mode)
1576 {
1577 VFS_FIND(chmod_acl);
1578 return handle->fns->chmod_acl(handle, name, mode);
1579 }
1580
1581 int smb_vfs_call_fchmod_acl(struct vfs_handle_struct *handle,
1582 struct files_struct *fsp, mode_t mode)
1583 {
1584 VFS_FIND(fchmod_acl);
1585 return handle->fns->fchmod_acl(handle, fsp, mode);
1586 }
1587
1588 int smb_vfs_call_sys_acl_get_entry(struct vfs_handle_struct *handle,
1589 SMB_ACL_T theacl, int entry_id,
1590 SMB_ACL_ENTRY_T *entry_p)
1591 {
1592 VFS_FIND(sys_acl_get_entry);
1593 return handle->fns->sys_acl_get_entry(handle, theacl, entry_id,
1594 entry_p);
1595 }
1596
1597 int smb_vfs_call_sys_acl_get_tag_type(struct vfs_handle_struct *handle,
1598 SMB_ACL_ENTRY_T entry_d,
1599 SMB_ACL_TAG_T *tag_type_p)
1600 {
1601 VFS_FIND(sys_acl_get_tag_type);
1602 return handle->fns->sys_acl_get_tag_type(handle, entry_d, tag_type_p);
1603 }
1604
1605 int smb_vfs_call_sys_acl_get_permset(struct vfs_handle_struct *handle,
1606 SMB_ACL_ENTRY_T entry_d,
1607 SMB_ACL_PERMSET_T *permset_p)
1608 {
1609 VFS_FIND(sys_acl_get_permset);
1610 return handle->fns->sys_acl_get_permset(handle, entry_d, permset_p);
1611 }
1612
1613 void * smb_vfs_call_sys_acl_get_qualifier(struct vfs_handle_struct *handle,
1614 SMB_ACL_ENTRY_T entry_d)
1615 {
1616 VFS_FIND(sys_acl_get_qualifier);
1617 return handle->fns->sys_acl_get_qualifier(handle, entry_d);
1618 }
1619
1620 SMB_ACL_T smb_vfs_call_sys_acl_get_file(struct vfs_handle_struct *handle,
1621 const char *path_p,
1622 SMB_ACL_TYPE_T type)
1623 {
1624 VFS_FIND(sys_acl_get_file);
1625 return handle->fns->sys_acl_get_file(handle, path_p, type);
1626 }
1627
1628 SMB_ACL_T smb_vfs_call_sys_acl_get_fd(struct vfs_handle_struct *handle,
1629 struct files_struct *fsp)
1630 {
1631 VFS_FIND(sys_acl_get_fd);
1632 return handle->fns->sys_acl_get_fd(handle, fsp);
1633 }
1634
1635 int smb_vfs_call_sys_acl_clear_perms(struct vfs_handle_struct *handle,
1636 SMB_ACL_PERMSET_T permset)
1637 {
1638 VFS_FIND(sys_acl_clear_perms);
1639 return handle->fns->sys_acl_clear_perms(handle, permset);
1640 }
1641
1642 int smb_vfs_call_sys_acl_add_perm(struct vfs_handle_struct *handle,
1643 SMB_ACL_PERMSET_T permset,
1644 SMB_ACL_PERM_T perm)
1645 {
1646 VFS_FIND(sys_acl_add_perm);
1647 return handle->fns->sys_acl_add_perm(handle, permset, perm);
1648 }
1649
1650 char * smb_vfs_call_sys_acl_to_text(struct vfs_handle_struct *handle,
1651 SMB_ACL_T theacl, ssize_t *plen)
1652 {
1653 VFS_FIND(sys_acl_to_text);
1654 return handle->fns->sys_acl_to_text(handle, theacl, plen);
1655 }
1656
1657 SMB_ACL_T smb_vfs_call_sys_acl_init(struct vfs_handle_struct *handle,
1658 int count)
1659 {
1660 VFS_FIND(sys_acl_init);
1661 return handle->fns->sys_acl_init(handle, count);
1662 }
1663
1664 int smb_vfs_call_sys_acl_create_entry(struct vfs_handle_struct *handle,
1665 SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry)
1666 {
1667 VFS_FIND(sys_acl_create_entry);
1668 return handle->fns->sys_acl_create_entry(handle, pacl, pentry);
1669 }
1670
1671 int smb_vfs_call_sys_acl_set_tag_type(struct vfs_handle_struct *handle,
1672 SMB_ACL_ENTRY_T entry,
1673 SMB_ACL_TAG_T tagtype)
1674 {
1675 VFS_FIND(sys_acl_set_tag_type);
1676 return handle->fns->sys_acl_set_tag_type(handle, entry, tagtype);
1677 }
1678
1679 int smb_vfs_call_sys_acl_set_qualifier(struct vfs_handle_struct *handle,
1680 SMB_ACL_ENTRY_T entry, void *qual)
1681 {
1682 VFS_FIND(sys_acl_set_qualifier);
1683 return handle->fns->sys_acl_set_qualifier(handle, entry, qual);
1684 }
1685
1686 int smb_vfs_call_sys_acl_set_permset(struct vfs_handle_struct *handle,
1687 SMB_ACL_ENTRY_T entry,
1688 SMB_ACL_PERMSET_T permset)
1689 {
1690 VFS_FIND(sys_acl_set_permset);
1691 return handle->fns->sys_acl_set_permset(handle, entry, permset);
1692 }
1693
1694 int smb_vfs_call_sys_acl_valid(struct vfs_handle_struct *handle,
1695 SMB_ACL_T theacl)
1696 {
1697 VFS_FIND(sys_acl_valid);
1698 return handle->fns->sys_acl_valid(handle, theacl);
1699 }
1700
1701 int smb_vfs_call_sys_acl_set_file(struct vfs_handle_struct *handle,
1702 const char *name, SMB_ACL_TYPE_T acltype,
1703 SMB_ACL_T theacl)
1704 {
1705 VFS_FIND(sys_acl_set_file);
1706 return handle->fns->sys_acl_set_file(handle, name, acltype, theacl);
1707 }
1708
1709 int smb_vfs_call_sys_acl_set_fd(struct vfs_handle_struct *handle,
1710 struct files_struct *fsp, SMB_ACL_T theacl)
1711 {
1712 VFS_FIND(sys_acl_set_fd);
1713 return handle->fns->sys_acl_set_fd(handle, fsp, theacl);
1714 }
1715
1716 int smb_vfs_call_sys_acl_delete_def_file(struct vfs_handle_struct *handle,
1717 const char *path)
1718 {
1719 VFS_FIND(sys_acl_delete_def_file);
1720 return handle->fns->sys_acl_delete_def_file(handle, path);
1721 }
1722
1723 int smb_vfs_call_sys_acl_get_perm(struct vfs_handle_struct *handle,
1724 SMB_ACL_PERMSET_T permset,
1725 SMB_ACL_PERM_T perm)
1726 {
1727 VFS_FIND(sys_acl_get_perm);
1728 return handle->fns->sys_acl_get_perm(handle, permset, perm);
1729 }
1730
1731 int smb_vfs_call_sys_acl_free_text(struct vfs_handle_struct *handle,
1732 char *text)
1733 {
1734 VFS_FIND(sys_acl_free_text);
1735 return handle->fns->sys_acl_free_text(handle, text);
1736 }
1737
1738 int smb_vfs_call_sys_acl_free_acl(struct vfs_handle_struct *handle,
1739 SMB_ACL_T posix_acl)
1740 {
1741 VFS_FIND(sys_acl_free_acl);
1742 return handle->fns->sys_acl_free_acl(handle, posix_acl);
1743 }
1744
1745 int smb_vfs_call_sys_acl_free_qualifier(struct vfs_handle_struct *handle,
1746 void *qualifier, SMB_ACL_TAG_T tagtype)
1747 {
1748 VFS_FIND(sys_acl_free_qualifier);
1749 return handle->fns->sys_acl_free_qualifier(handle, qualifier, tagtype);
1750 }
1751
1752 ssize_t smb_vfs_call_getxattr(struct vfs_handle_struct *handle,
1753 const char *path, const char *name, void *value,
1754 size_t size)
1755 {
1756 VFS_FIND(getxattr);
1757 return handle->fns->getxattr(handle, path, name, value, size);
1758 }
1759
1760 ssize_t smb_vfs_call_lgetxattr(struct vfs_handle_struct *handle,
1761 const char *path, const char *name, void *value,
1762 size_t size)
1763 {
1764 VFS_FIND(lgetxattr);
1765 return handle->fns->lgetxattr(handle, path, name, value, size);
1766 }
1767
1768 ssize_t smb_vfs_call_fgetxattr(struct vfs_handle_struct *handle,
1769 struct files_struct *fsp, const char *name,
1770 void *value, size_t size)
1771 {
1772 VFS_FIND(fgetxattr);
1773 return handle->fns->fgetxattr(handle, fsp, name, value, size);
1774 }
1775
1776 ssize_t smb_vfs_call_listxattr(struct vfs_handle_struct *handle,
1777 const char *path, char *list, size_t size)
1778 {
1779 VFS_FIND(listxattr);
1780 return handle->fns->listxattr(handle, path, list, size);
1781 }
1782
1783 ssize_t smb_vfs_call_llistxattr(struct vfs_handle_struct *handle,
1784 const char *path, char *list, size_t size)
1785 {
1786 VFS_FIND(llistxattr);
1787 return handle->fns->llistxattr(handle, path, list, size);
1788 }
1789
1790 ssize_t smb_vfs_call_flistxattr(struct vfs_handle_struct *handle,
1791 struct files_struct *fsp, char *list,
1792 size_t size)
1793 {
1794 VFS_FIND(flistxattr);
1795 return handle->fns->flistxattr(handle, fsp, list, size);
1796 }
1797
1798 int smb_vfs_call_removexattr(struct vfs_handle_struct *handle,
1799 const char *path, const char *name)
1800 {
1801 VFS_FIND(removexattr);
1802 return handle->fns->removexattr(handle, path, name);
1803 }
1804
1805 int smb_vfs_call_lremovexattr(struct vfs_handle_struct *handle,
1806 const char *path, const char *name)
1807 {
1808 VFS_FIND(lremovexattr);
1809 return handle->fns->lremovexattr(handle, path, name);
1810 }
1811
1812 int smb_vfs_call_fremovexattr(struct vfs_handle_struct *handle,
1813 struct files_struct *fsp, const char *name)
1814 {
1815 VFS_FIND(fremovexattr);
1816 return handle->fns->fremovexattr(handle, fsp, name);
1817 }
1818
1819 int smb_vfs_call_setxattr(struct vfs_handle_struct *handle, const char *path,
1820 const char *name, const void *value, size_t size,
1821 int flags)
1822 {
1823 VFS_FIND(setxattr);
1824 return handle->fns->setxattr(handle, path, name, value, size, flags);
1825 }
1826
1827 int smb_vfs_call_lsetxattr(struct vfs_handle_struct *handle, const char *path,
1828 const char *name, const void *value, size_t size,
1829 int flags)
1830 {
1831 VFS_FIND(lsetxattr);
1832 return handle->fns->lsetxattr(handle, path, name, value, size, flags);
1833 }
1834
1835 int smb_vfs_call_fsetxattr(struct vfs_handle_struct *handle,
1836 struct files_struct *fsp, const char *name,
1837 const void *value, size_t size, int flags)
1838 {
1839 VFS_FIND(fsetxattr);
1840 return handle->fns->fsetxattr(handle, fsp, name, value, size, flags);
1841 }
1842
1843 int smb_vfs_call_aio_read(struct vfs_handle_struct *handle,
1844 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
1845 {
1846 VFS_FIND(aio_read);
1847 return handle->fns->aio_read(handle, fsp, aiocb);
1848 }
1849
1850 int smb_vfs_call_aio_write(struct vfs_handle_struct *handle,
1851 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
1852 {
1853 VFS_FIND(aio_write);
1854 return handle->fns->aio_write(handle, fsp, aiocb);
1855 }
1856
1857 ssize_t smb_vfs_call_aio_return_fn(struct vfs_handle_struct *handle,
1858 struct files_struct *fsp,
1859 SMB_STRUCT_AIOCB *aiocb)
1860 {
1861 VFS_FIND(aio_return_fn);
1862 return handle->fns->aio_return_fn(handle, fsp, aiocb);
1863 }
1864
1865 int smb_vfs_call_aio_cancel(struct vfs_handle_struct *handle,
1866 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
1867 {
1868 VFS_FIND(aio_cancel);
1869 return handle->fns->aio_cancel(handle, fsp, aiocb);
1870 }
1871
1872 int smb_vfs_call_aio_error_fn(struct vfs_handle_struct *handle,
1873 struct files_struct *fsp,
1874 SMB_STRUCT_AIOCB *aiocb)
1875 {
1876 VFS_FIND(aio_error_fn);
1877 return handle->fns->aio_error_fn(handle, fsp, aiocb);
1878 }
1879
1880 int smb_vfs_call_aio_fsync(struct vfs_handle_struct *handle,
1881 struct files_struct *fsp, int op,
1882 SMB_STRUCT_AIOCB *aiocb)
1883 {
1884 VFS_FIND(aio_fsync);
1885 return handle->fns->aio_fsync(handle, fsp, op, aiocb);
1886 }
1887
1888 int smb_vfs_call_aio_suspend(struct vfs_handle_struct *handle,
1889 struct files_struct *fsp,
1890 const SMB_STRUCT_AIOCB * const aiocb[], int n,
1891 const struct timespec *timeout)
1892 {
1893 VFS_FIND(aio_suspend);
1894 return handle->fns->aio_suspend(handle, fsp, aiocb, n, timeout);
1895 }
1896
1897 bool smb_vfs_call_aio_force(struct vfs_handle_struct *handle,
1898 struct files_struct *fsp)
1899 {
1900 VFS_FIND(aio_force);
1901 return handle->fns->aio_force(handle, fsp);
1902 }
1903
1904 bool smb_vfs_call_is_offline(struct vfs_handle_struct *handle,
1905 const char *path, SMB_STRUCT_STAT *sbuf)
1906 {
1907 VFS_FIND(is_offline);
1908 return handle->fns->is_offline(handle, path, sbuf);
1909 }
1910
1911 int smb_vfs_call_set_offline(struct vfs_handle_struct *handle,
1912 const char *path)
1913 {
1914 VFS_FIND(set_offline);
1915 return handle->fns->set_offline(handle, path);
1916 }
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