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[Samba/eduardoll.git] / source3 / smbd / vfs.c
blob7df51cff95ecb226dd98befacb9d3962ea5b3e04
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_custom() called with NULL pointer or "
115 "empty vfs_object!\n"));
116 return False;
117 }
118
119 if(!backends) {
120 static_init_vfs;
121 }
122
123 DEBUG(3, ("Initialising custom vfs hooks from [%s]\n", vfs_object));
124
125 module_path = smb_xstrdup(vfs_object);
126
127 p = strchr_m(module_path, ':');
128
129 if (p) {
130 *p = 0;
131 module_param = p+1;
132 trim_char(module_param, ' ', ' ');
133 }
134
135 trim_char(module_path, ' ', ' ');
136
137 module_name = smb_xstrdup(module_path);
138
139 if ((module_name[0] == '/') &&
140 (strcmp(module_path, DEFAULT_VFS_MODULE_NAME) != 0)) {
141
142 /*
143 * Extract the module name from the path. Just use the base
144 * name of the last path component.
145 */
146
147 SAFE_FREE(module_name);
148 module_name = smb_xstrdup(strrchr_m(module_path, '/')+1);
149
150 p = strchr_m(module_name, '.');
151
152 if (p != NULL) {
153 *p = '\0';
154 }
155 }
156
157 /* First, try to load the module with the new module system */
158 entry = vfs_find_backend_entry(module_name);
159 if (!entry) {
160 NTSTATUS status;
161
162 DEBUG(5, ("vfs module [%s] not loaded - trying to load...\n",
163 vfs_object));
164
165 status = smb_probe_module("vfs", module_path);
166 if (!NT_STATUS_IS_OK(status)) {
167 DEBUG(0, ("error probing vfs module '%s': %s\n",
168 module_path, nt_errstr(status)));
169 goto fail;
170 }
171
172 entry = vfs_find_backend_entry(module_name);
173 if (!entry) {
174 DEBUG(0,("Can't find a vfs module [%s]\n",vfs_object));
175 goto fail;
176 }
177 }
178
179 DEBUGADD(5,("Successfully loaded vfs module [%s] with the new modules system\n", vfs_object));
180
181 handle = TALLOC_ZERO_P(conn, vfs_handle_struct);
182 if (!handle) {
183 DEBUG(0,("TALLOC_ZERO() failed!\n"));
184 goto fail;
185 }
186 handle->conn = conn;
187 handle->fns = entry->fns;
188 if (module_param) {
189 handle->param = talloc_strdup(conn, module_param);
190 }
191 DLIST_ADD(conn->vfs_handles, handle);
192
193 SAFE_FREE(module_path);
194 SAFE_FREE(module_name);
195 return True;
196
197 fail:
198 SAFE_FREE(module_path);
199 SAFE_FREE(module_name);
200 return False;
201 }
202
203 /*****************************************************************
204 Allow VFS modules to extend files_struct with VFS-specific state.
205 This will be ok for small numbers of extensions, but might need to
206 be refactored if it becomes more widely used.
207 ******************************************************************/
208
209 #define EXT_DATA_AREA(e) ((uint8 *)(e) + sizeof(struct vfs_fsp_data))
210
211 void *vfs_add_fsp_extension_notype(vfs_handle_struct *handle,
212 files_struct *fsp, size_t ext_size,
213 void (*destroy_fn)(void *p_data))
214 {
215 struct vfs_fsp_data *ext;
216 void * ext_data;
217
218 /* Prevent VFS modules adding multiple extensions. */
219 if ((ext_data = vfs_fetch_fsp_extension(handle, fsp))) {
220 return ext_data;
221 }
222
223 ext = (struct vfs_fsp_data *)TALLOC_ZERO(
224 handle->conn, sizeof(struct vfs_fsp_data) + ext_size);
225 if (ext == NULL) {
226 return NULL;
227 }
228
229 ext->owner = handle;
230 ext->next = fsp->vfs_extension;
231 ext->destroy = destroy_fn;
232 fsp->vfs_extension = ext;
233 return EXT_DATA_AREA(ext);
234 }
235
236 void vfs_remove_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
237 {
238 struct vfs_fsp_data *curr;
239 struct vfs_fsp_data *prev;
240
241 for (curr = fsp->vfs_extension, prev = NULL;
242 curr;
243 prev = curr, curr = curr->next) {
244 if (curr->owner == handle) {
245 if (prev) {
246 prev->next = curr->next;
247 } else {
248 fsp->vfs_extension = curr->next;
249 }
250 if (curr->destroy) {
251 curr->destroy(EXT_DATA_AREA(curr));
252 }
253 TALLOC_FREE(curr);
254 return;
255 }
256 }
257 }
258
259 void *vfs_memctx_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
260 {
261 struct vfs_fsp_data *head;
262
263 for (head = fsp->vfs_extension; head; head = head->next) {
264 if (head->owner == handle) {
265 return head;
266 }
267 }
268
269 return NULL;
270 }
271
272 void *vfs_fetch_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
273 {
274 struct vfs_fsp_data *head;
275
276 head = (struct vfs_fsp_data *)vfs_memctx_fsp_extension(handle, fsp);
277 if (head != NULL) {
278 return EXT_DATA_AREA(head);
279 }
280
281 return NULL;
282 }
283
284 #undef EXT_DATA_AREA
285
286 /*****************************************************************
287 Generic VFS init.
288 ******************************************************************/
289
290 bool smbd_vfs_init(connection_struct *conn)
291 {
292 const char **vfs_objects;
293 unsigned int i = 0;
294 int j = 0;
295
296 /* Normal share - initialise with disk access functions */
297 vfs_init_default(conn);
298 vfs_objects = lp_vfs_objects(SNUM(conn));
299
300 /* Override VFS functions if 'vfs object' was not specified*/
301 if (!vfs_objects || !vfs_objects[0])
302 return True;
303
304 for (i=0; vfs_objects[i] ;) {
305 i++;
306 }
307
308 for (j=i-1; j >= 0; j--) {
309 if (!vfs_init_custom(conn, vfs_objects[j])) {
310 DEBUG(0, ("smbd_vfs_init: vfs_init_custom failed for %s\n", vfs_objects[j]));
311 return False;
312 }
313 }
314 return True;
315 }
316
317 /*******************************************************************
318 Check if a file exists in the vfs.
319 ********************************************************************/
320
321 NTSTATUS vfs_file_exist(connection_struct *conn, struct smb_filename *smb_fname)
322 {
323 /* Only return OK if stat was successful and S_ISREG */
324 if ((SMB_VFS_STAT(conn, smb_fname) != -1) &&
325 S_ISREG(smb_fname->st.st_ex_mode)) {
326 return NT_STATUS_OK;
327 }
328
329 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
330 }
331
332 /****************************************************************************
333 Read data from fsp on the vfs. (note: EINTR re-read differs from vfs_write_data)
334 ****************************************************************************/
335
336 ssize_t vfs_read_data(files_struct *fsp, char *buf, size_t byte_count)
337 {
338 size_t total=0;
339
340 while (total < byte_count)
341 {
342 ssize_t ret = SMB_VFS_READ(fsp, buf + total,
343 byte_count - total);
344
345 if (ret == 0) return total;
346 if (ret == -1) {
347 if (errno == EINTR)
348 continue;
349 else
350 return -1;
351 }
352 total += ret;
353 }
354 return (ssize_t)total;
355 }
356
357 ssize_t vfs_pread_data(files_struct *fsp, char *buf,
358 size_t byte_count, SMB_OFF_T offset)
359 {
360 size_t total=0;
361
362 while (total < byte_count)
363 {
364 ssize_t ret = SMB_VFS_PREAD(fsp, buf + total,
365 byte_count - total, offset + total);
366
367 if (ret == 0) return total;
368 if (ret == -1) {
369 if (errno == EINTR)
370 continue;
371 else
372 return -1;
373 }
374 total += ret;
375 }
376 return (ssize_t)total;
377 }
378
379 /****************************************************************************
380 Write data to a fd on the vfs.
381 ****************************************************************************/
382
383 ssize_t vfs_write_data(struct smb_request *req,
384 files_struct *fsp,
385 const char *buffer,
386 size_t N)
387 {
388 size_t total=0;
389 ssize_t ret;
390
391 if (req && req->unread_bytes) {
392 SMB_ASSERT(req->unread_bytes == N);
393 /* VFS_RECVFILE must drain the socket
394 * before returning. */
395 req->unread_bytes = 0;
396 return SMB_VFS_RECVFILE(smbd_server_fd(),
397 fsp,
398 (SMB_OFF_T)-1,
399 N);
400 }
401
402 while (total < N) {
403 ret = SMB_VFS_WRITE(fsp, buffer + total, N - total);
404
405 if (ret == -1)
406 return -1;
407 if (ret == 0)
408 return total;
409
410 total += ret;
411 }
412 return (ssize_t)total;
413 }
414
415 ssize_t vfs_pwrite_data(struct smb_request *req,
416 files_struct *fsp,
417 const char *buffer,
418 size_t N,
419 SMB_OFF_T offset)
420 {
421 size_t total=0;
422 ssize_t ret;
423
424 if (req && req->unread_bytes) {
425 SMB_ASSERT(req->unread_bytes == N);
426 /* VFS_RECVFILE must drain the socket
427 * before returning. */
428 req->unread_bytes = 0;
429 return SMB_VFS_RECVFILE(smbd_server_fd(),
430 fsp,
431 offset,
432 N);
433 }
434
435 while (total < N) {
436 ret = SMB_VFS_PWRITE(fsp, buffer + total, N - total,
437 offset + total);
438
439 if (ret == -1)
440 return -1;
441 if (ret == 0)
442 return total;
443
444 total += ret;
445 }
446 return (ssize_t)total;
447 }
448 /****************************************************************************
449 An allocate file space call using the vfs interface.
450 Allocates space for a file from a filedescriptor.
451 Returns 0 on success, -1 on failure.
452 ****************************************************************************/
453
454 int vfs_allocate_file_space(files_struct *fsp, uint64_t len)
455 {
456 int ret;
457 SMB_STRUCT_STAT st;
458 connection_struct *conn = fsp->conn;
459 uint64_t space_avail;
460 uint64_t bsize,dfree,dsize;
461
462 /*
463 * Actually try and commit the space on disk....
464 */
465
466 DEBUG(10,("vfs_allocate_file_space: file %s, len %.0f\n",
467 fsp_str_dbg(fsp), (double)len));
468
469 if (((SMB_OFF_T)len) < 0) {
470 DEBUG(0,("vfs_allocate_file_space: %s negative len "
471 "requested.\n", fsp_str_dbg(fsp)));
472 errno = EINVAL;
473 return -1;
474 }
475
476 ret = SMB_VFS_FSTAT(fsp, &st);
477 if (ret == -1)
478 return ret;
479
480 if (len == (uint64_t)st.st_ex_size)
481 return 0;
482
483 if (len < (uint64_t)st.st_ex_size) {
484 /* Shrink - use ftruncate. */
485
486 DEBUG(10,("vfs_allocate_file_space: file %s, shrink. Current "
487 "size %.0f\n", fsp_str_dbg(fsp),
488 (double)st.st_ex_size));
489
490 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_ALLOC_SHRINK);
491
492 flush_write_cache(fsp, SIZECHANGE_FLUSH);
493 if ((ret = SMB_VFS_FTRUNCATE(fsp, (SMB_OFF_T)len)) != -1) {
494 set_filelen_write_cache(fsp, len);
495 }
496
497 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_ALLOC_SHRINK);
498
499 return ret;
500 }
501
502 /* Grow - we need to test if we have enough space. */
503
504 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_ALLOC_GROW);
505 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_ALLOC_GROW);
506
507 if (!lp_strict_allocate(SNUM(fsp->conn)))
508 return 0;
509
510 len -= st.st_ex_size;
511 len /= 1024; /* Len is now number of 1k blocks needed. */
512 space_avail = get_dfree_info(conn, fsp->fsp_name->base_name, false,
513 &bsize, &dfree, &dsize);
514 if (space_avail == (uint64_t)-1) {
515 return -1;
516 }
517
518 DEBUG(10,("vfs_allocate_file_space: file %s, grow. Current size %.0f, "
519 "needed blocks = %.0f, space avail = %.0f\n",
520 fsp_str_dbg(fsp), (double)st.st_ex_size, (double)len,
521 (double)space_avail));
522
523 if (len > space_avail) {
524 errno = ENOSPC;
525 return -1;
526 }
527
528 return 0;
529 }
530
531 /****************************************************************************
532 A vfs set_filelen call.
533 set the length of a file from a filedescriptor.
534 Returns 0 on success, -1 on failure.
535 ****************************************************************************/
536
537 int vfs_set_filelen(files_struct *fsp, SMB_OFF_T len)
538 {
539 int ret;
540
541 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_SET_FILE_LEN);
542
543 DEBUG(10,("vfs_set_filelen: ftruncate %s to len %.0f\n",
544 fsp_str_dbg(fsp), (double)len));
545 flush_write_cache(fsp, SIZECHANGE_FLUSH);
546 if ((ret = SMB_VFS_FTRUNCATE(fsp, len)) != -1) {
547 set_filelen_write_cache(fsp, len);
548 notify_fname(fsp->conn, NOTIFY_ACTION_MODIFIED,
549 FILE_NOTIFY_CHANGE_SIZE
550 | FILE_NOTIFY_CHANGE_ATTRIBUTES,
551 fsp->fsp_name->base_name);
552 }
553
554 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_SET_FILE_LEN);
555
556 return ret;
557 }
558
559 /****************************************************************************
560 A vfs fill sparse call.
561 Writes zeros from the end of file to len, if len is greater than EOF.
562 Used only by strict_sync.
563 Returns 0 on success, -1 on failure.
564 ****************************************************************************/
565
566 #define SPARSE_BUF_WRITE_SIZE (32*1024)
567
568 int vfs_fill_sparse(files_struct *fsp, SMB_OFF_T len)
569 {
570 int ret;
571 SMB_STRUCT_STAT st;
572 SMB_OFF_T offset;
573 size_t total;
574 size_t num_to_write;
575 ssize_t pwrite_ret;
576
577 ret = SMB_VFS_FSTAT(fsp, &st);
578 if (ret == -1) {
579 return ret;
580 }
581
582 if (len <= st.st_ex_size) {
583 return 0;
584 }
585
586 DEBUG(10,("vfs_fill_sparse: write zeros in file %s from len %.0f to "
587 "len %.0f (%.0f bytes)\n", fsp_str_dbg(fsp),
588 (double)st.st_ex_size, (double)len,
589 (double)(len - st.st_ex_size)));
590
591 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_FILL_SPARSE);
592
593 flush_write_cache(fsp, SIZECHANGE_FLUSH);
594
595 if (!sparse_buf) {
596 sparse_buf = SMB_CALLOC_ARRAY(char, SPARSE_BUF_WRITE_SIZE);
597 if (!sparse_buf) {
598 errno = ENOMEM;
599 ret = -1;
600 goto out;
601 }
602 }
603
604 offset = st.st_ex_size;
605 num_to_write = len - st.st_ex_size;
606 total = 0;
607
608 while (total < num_to_write) {
609 size_t curr_write_size = MIN(SPARSE_BUF_WRITE_SIZE, (num_to_write - total));
610
611 pwrite_ret = SMB_VFS_PWRITE(fsp, sparse_buf, curr_write_size, offset + total);
612 if (pwrite_ret == -1) {
613 DEBUG(10,("vfs_fill_sparse: SMB_VFS_PWRITE for file "
614 "%s failed with error %s\n",
615 fsp_str_dbg(fsp), strerror(errno)));
616 ret = -1;
617 goto out;
618 }
619 if (pwrite_ret == 0) {
620 ret = 0;
621 goto out;
622 }
623
624 total += pwrite_ret;
625 }
626
627 set_filelen_write_cache(fsp, len);
628
629 ret = 0;
630 out:
631 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_FILL_SPARSE);
632 return ret;
633 }
634
635 /****************************************************************************
636 Transfer some data (n bytes) between two file_struct's.
637 ****************************************************************************/
638
639 static ssize_t vfs_read_fn(void *file, void *buf, size_t len)
640 {
641 struct files_struct *fsp = (struct files_struct *)file;
642
643 return SMB_VFS_READ(fsp, buf, len);
644 }
645
646 static ssize_t vfs_write_fn(void *file, const void *buf, size_t len)
647 {
648 struct files_struct *fsp = (struct files_struct *)file;
649
650 return SMB_VFS_WRITE(fsp, buf, len);
651 }
652
653 SMB_OFF_T vfs_transfer_file(files_struct *in, files_struct *out, SMB_OFF_T n)
654 {
655 return transfer_file_internal((void *)in, (void *)out, n,
656 vfs_read_fn, vfs_write_fn);
657 }
658
659 /*******************************************************************
660 A vfs_readdir wrapper which just returns the file name.
661 ********************************************************************/
662
663 const char *vfs_readdirname(connection_struct *conn, void *p,
664 SMB_STRUCT_STAT *sbuf, char **talloced)
665 {
666 SMB_STRUCT_DIRENT *ptr= NULL;
667 const char *dname;
668 char *translated;
669 NTSTATUS status;
670
671 if (!p)
672 return(NULL);
673
674 ptr = SMB_VFS_READDIR(conn, (DIR *)p, sbuf);
675 if (!ptr)
676 return(NULL);
677
678 dname = ptr->d_name;
679
680
681 #ifdef NEXT2
682 if (telldir(p) < 0)
683 return(NULL);
684 #endif
685
686 #ifdef HAVE_BROKEN_READDIR_NAME
687 /* using /usr/ucb/cc is BAD */
688 dname = dname - 2;
689 #endif
690
691 status = SMB_VFS_TRANSLATE_NAME(conn, dname, vfs_translate_to_windows,
692 talloc_tos(), &translated);
693 if (NT_STATUS_EQUAL(status, NT_STATUS_NONE_MAPPED)) {
694 *talloced = NULL;
695 return dname;
696 }
697 *talloced = translated;
698 if (!NT_STATUS_IS_OK(status)) {
699 return NULL;
700 }
701 return translated;
702 }
703
704 /*******************************************************************
705 A wrapper for vfs_chdir().
706 ********************************************************************/
707
708 int vfs_ChDir(connection_struct *conn, const char *path)
709 {
710 return SMB_VFS_CHDIR(conn,path);
711 }
712
713 /*******************************************************************
714 Return the absolute current directory path - given a UNIX pathname.
715 Note that this path is returned in DOS format, not UNIX
716 format. Note this can be called with conn == NULL.
717 ********************************************************************/
718
719 char *vfs_GetWd(TALLOC_CTX *ctx, connection_struct *conn)
720 {
721 char s[PATH_MAX+1];
722 char *result = NULL;
723 DATA_BLOB cache_value;
724 struct file_id key;
725 struct smb_filename *smb_fname_dot = NULL;
726 struct smb_filename *smb_fname_full = NULL;
727 NTSTATUS status;
728
729 *s = 0;
730
731 if (!lp_getwd_cache()) {
732 goto nocache;
733 }
734
735 status = create_synthetic_smb_fname(ctx, ".", NULL, NULL,
736 &smb_fname_dot);
737 if (!NT_STATUS_IS_OK(status)) {
738 errno = map_errno_from_nt_status(status);
739 goto out;
740 }
741
742 if (SMB_VFS_STAT(conn, smb_fname_dot) == -1) {
743 /*
744 * Known to fail for root: the directory may be NFS-mounted
745 * and exported with root_squash (so has no root access).
746 */
747 DEBUG(1,("vfs_GetWd: couldn't stat \".\" error %s "
748 "(NFS problem ?)\n", strerror(errno) ));
749 goto nocache;
750 }
751
752 key = vfs_file_id_from_sbuf(conn, &smb_fname_dot->st);
753
754 if (!memcache_lookup(smbd_memcache(), GETWD_CACHE,
755 data_blob_const(&key, sizeof(key)),
756 &cache_value)) {
757 goto nocache;
758 }
759
760 SMB_ASSERT((cache_value.length > 0)
761 && (cache_value.data[cache_value.length-1] == '\0'));
762
763 status = create_synthetic_smb_fname(ctx, (char *)cache_value.data,
764 NULL, NULL, &smb_fname_full);
765 if (!NT_STATUS_IS_OK(status)) {
766 errno = map_errno_from_nt_status(status);
767 goto out;
768 }
769
770 if ((SMB_VFS_STAT(conn, smb_fname_full) == 0) &&
771 (smb_fname_dot->st.st_ex_dev == smb_fname_full->st.st_ex_dev) &&
772 (smb_fname_dot->st.st_ex_ino == smb_fname_full->st.st_ex_ino) &&
773 (S_ISDIR(smb_fname_dot->st.st_ex_mode))) {
774 /*
775 * Ok, we're done
776 */
777 result = talloc_strdup(ctx, smb_fname_full->base_name);
778 if (result == NULL) {
779 errno = ENOMEM;
780 }
781 goto out;
782 }
783
784 nocache:
785
786 /*
787 * We don't have the information to hand so rely on traditional
788 * methods. The very slow getcwd, which spawns a process on some
789 * systems, or the not quite so bad getwd.
790 */
791
792 if (!SMB_VFS_GETWD(conn,s)) {
793 DEBUG(0, ("vfs_GetWd: SMB_VFS_GETWD call failed: %s\n",
794 strerror(errno)));
795 goto out;
796 }
797
798 if (lp_getwd_cache() && VALID_STAT(smb_fname_dot->st)) {
799 key = vfs_file_id_from_sbuf(conn, &smb_fname_dot->st);
800
801 memcache_add(smbd_memcache(), GETWD_CACHE,
802 data_blob_const(&key, sizeof(key)),
803 data_blob_const(s, strlen(s)+1));
804 }
805
806 result = talloc_strdup(ctx, s);
807 if (result == NULL) {
808 errno = ENOMEM;
809 }
810
811 out:
812 TALLOC_FREE(smb_fname_dot);
813 TALLOC_FREE(smb_fname_full);
814 return result;
815 }
816
817 /*******************************************************************
818 Reduce a file name, removing .. elements and checking that
819 it is below dir in the heirachy. This uses realpath.
820 ********************************************************************/
821
822 NTSTATUS check_reduced_name(connection_struct *conn, const char *fname)
823 {
824 #ifdef REALPATH_TAKES_NULL
825 bool free_resolved_name = True;
826 #else
827 char resolved_name_buf[PATH_MAX+1];
828 bool free_resolved_name = False;
829 #endif
830 char *resolved_name = NULL;
831 char *p = NULL;
832
833 DEBUG(3,("check_reduced_name [%s] [%s]\n", fname, conn->connectpath));
834
835 #ifdef REALPATH_TAKES_NULL
836 resolved_name = SMB_VFS_REALPATH(conn,fname,NULL);
837 #else
838 resolved_name = SMB_VFS_REALPATH(conn,fname,resolved_name_buf);
839 #endif
840
841 if (!resolved_name) {
842 switch (errno) {
843 case ENOTDIR:
844 DEBUG(3,("check_reduced_name: Component not a "
845 "directory in getting realpath for "
846 "%s\n", fname));
847 return NT_STATUS_OBJECT_PATH_NOT_FOUND;
848 case ENOENT:
849 {
850 TALLOC_CTX *ctx = talloc_tos();
851 char *tmp_fname = NULL;
852 char *last_component = NULL;
853 /* Last component didn't exist. Remove it and try and canonicalise the directory. */
854
855 tmp_fname = talloc_strdup(ctx, fname);
856 if (!tmp_fname) {
857 return NT_STATUS_NO_MEMORY;
858 }
859 p = strrchr_m(tmp_fname, '/');
860 if (p) {
861 *p++ = '\0';
862 last_component = p;
863 } else {
864 last_component = tmp_fname;
865 tmp_fname = talloc_strdup(ctx,
866 ".");
867 if (!tmp_fname) {
868 return NT_STATUS_NO_MEMORY;
869 }
870 }
871
872 #ifdef REALPATH_TAKES_NULL
873 resolved_name = SMB_VFS_REALPATH(conn,tmp_fname,NULL);
874 #else
875 resolved_name = SMB_VFS_REALPATH(conn,tmp_fname,resolved_name_buf);
876 #endif
877 if (!resolved_name) {
878 NTSTATUS status = map_nt_error_from_unix(errno);
879
880 if (errno == ENOENT || errno == ENOTDIR) {
881 status = NT_STATUS_OBJECT_PATH_NOT_FOUND;
882 }
883
884 DEBUG(3,("check_reduce_named: "
885 "couldn't get realpath for "
886 "%s (%s)\n",
887 fname,
888 nt_errstr(status)));
889 return status;
890 }
891 tmp_fname = talloc_asprintf(ctx,
892 "%s/%s",
893 resolved_name,
894 last_component);
895 if (!tmp_fname) {
896 return NT_STATUS_NO_MEMORY;
897 }
898 #ifdef REALPATH_TAKES_NULL
899 SAFE_FREE(resolved_name);
900 resolved_name = SMB_STRDUP(tmp_fname);
901 if (!resolved_name) {
902 DEBUG(0, ("check_reduced_name: malloc "
903 "fail for %s\n", tmp_fname));
904 return NT_STATUS_NO_MEMORY;
905 }
906 #else
907 safe_strcpy(resolved_name_buf, tmp_fname, PATH_MAX);
908 resolved_name = resolved_name_buf;
909 #endif
910 break;
911 }
912 default:
913 DEBUG(1,("check_reduced_name: couldn't get "
914 "realpath for %s\n", fname));
915 return map_nt_error_from_unix(errno);
916 }
917 }
918
919 DEBUG(10,("check_reduced_name realpath [%s] -> [%s]\n", fname,
920 resolved_name));
921
922 if (*resolved_name != '/') {
923 DEBUG(0,("check_reduced_name: realpath doesn't return "
924 "absolute paths !\n"));
925 if (free_resolved_name) {
926 SAFE_FREE(resolved_name);
927 }
928 return NT_STATUS_OBJECT_NAME_INVALID;
929 }
930
931 /* Check for widelinks allowed. */
932 if (!lp_widelinks(SNUM(conn))) {
933 const char *conn_rootdir;
934
935 conn_rootdir = SMB_VFS_CONNECTPATH(conn, fname);
936 if (conn_rootdir == NULL) {
937 DEBUG(2, ("check_reduced_name: Could not get "
938 "conn_rootdir\n"));
939 if (free_resolved_name) {
940 SAFE_FREE(resolved_name);
941 }
942 return NT_STATUS_ACCESS_DENIED;
943 }
944
945 if (strncmp(conn_rootdir, resolved_name,
946 strlen(conn_rootdir)) != 0) {
947 DEBUG(2, ("check_reduced_name: Bad access "
948 "attempt: %s is a symlink outside the "
949 "share path\n", fname));
950 if (free_resolved_name) {
951 SAFE_FREE(resolved_name);
952 }
953 return NT_STATUS_ACCESS_DENIED;
954 }
955 }
956
957 /* Check if we are allowing users to follow symlinks */
958 /* Patch from David Clerc <David.Clerc@cui.unige.ch>
959 University of Geneva */
960
961 #ifdef S_ISLNK
962 if (!lp_symlinks(SNUM(conn))) {
963 struct smb_filename *smb_fname = NULL;
964 NTSTATUS status;
965
966 status = create_synthetic_smb_fname(talloc_tos(), fname, NULL,
967 NULL, &smb_fname);
968 if (!NT_STATUS_IS_OK(status)) {
969 if (free_resolved_name) {
970 SAFE_FREE(resolved_name);
971 }
972 return status;
973 }
974
975 if ( (SMB_VFS_LSTAT(conn, smb_fname) != -1) &&
976 (S_ISLNK(smb_fname->st.st_ex_mode)) ) {
977 if (free_resolved_name) {
978 SAFE_FREE(resolved_name);
979 }
980 DEBUG(3,("check_reduced_name: denied: file path name "
981 "%s is a symlink\n",resolved_name));
982 TALLOC_FREE(smb_fname);
983 return NT_STATUS_ACCESS_DENIED;
984 }
985 TALLOC_FREE(smb_fname);
986 }
987 #endif
988
989 DEBUG(3,("check_reduced_name: %s reduced to %s\n", fname,
990 resolved_name));
991 if (free_resolved_name) {
992 SAFE_FREE(resolved_name);
993 }
994 return NT_STATUS_OK;
995 }
996
997 /**
998 * XXX: This is temporary and there should be no callers of this once
999 * smb_filename is plumbed through all path based operations.
1000 */
1001 int vfs_stat_smb_fname(struct connection_struct *conn, const char *fname,
1002 SMB_STRUCT_STAT *psbuf)
1003 {
1004 struct smb_filename *smb_fname = NULL;
1005 NTSTATUS status;
1006 int ret;
1007
1008 status = create_synthetic_smb_fname_split(talloc_tos(), fname, NULL,
1009 &smb_fname);
1010 if (!NT_STATUS_IS_OK(status)) {
1011 errno = map_errno_from_nt_status(status);
1012 return -1;
1013 }
1014
1015 if (lp_posix_pathnames()) {
1016 ret = SMB_VFS_LSTAT(conn, smb_fname);
1017 } else {
1018 ret = SMB_VFS_STAT(conn, smb_fname);
1019 }
1020
1021 if (ret != -1) {
1022 *psbuf = smb_fname->st;
1023 }
1024
1025 TALLOC_FREE(smb_fname);
1026 return ret;
1027 }
1028
1029 /**
1030 * XXX: This is temporary and there should be no callers of this once
1031 * smb_filename is plumbed through all path based operations.
1032 */
1033 int vfs_lstat_smb_fname(struct connection_struct *conn, const char *fname,
1034 SMB_STRUCT_STAT *psbuf)
1035 {
1036 struct smb_filename *smb_fname = NULL;
1037 NTSTATUS status;
1038 int ret;
1039
1040 status = create_synthetic_smb_fname_split(talloc_tos(), fname, NULL,
1041 &smb_fname);
1042 if (!NT_STATUS_IS_OK(status)) {
1043 errno = map_errno_from_nt_status(status);
1044 return -1;
1045 }
1046
1047 ret = SMB_VFS_LSTAT(conn, smb_fname);
1048 if (ret != -1) {
1049 *psbuf = smb_fname->st;
1050 }
1051
1052 TALLOC_FREE(smb_fname);
1053 return ret;
1054 }
1055
1056 /**
1057 * Ensure LSTAT is called for POSIX paths.
1058 */
1059
1060 NTSTATUS vfs_stat_fsp(files_struct *fsp)
1061 {
1062 int ret;
1063
1064 if(fsp->is_directory || fsp->fh->fd == -1) {
1065 if (fsp->posix_open) {
1066 ret = SMB_VFS_LSTAT(fsp->conn, fsp->fsp_name);
1067 } else {
1068 ret = SMB_VFS_STAT(fsp->conn, fsp->fsp_name);
1069 }
1070 if (ret == -1) {
1071 return map_nt_error_from_unix(errno);
1072 }
1073 } else {
1074 if(SMB_VFS_FSTAT(fsp, &fsp->fsp_name->st) != 0) {
1075 return map_nt_error_from_unix(errno);
1076 }
1077 }
1078 return NT_STATUS_OK;
1079 }
1080
1081 /*
1082 generate a file_id from a stat structure
1083 */
1084 struct file_id vfs_file_id_from_sbuf(connection_struct *conn, const SMB_STRUCT_STAT *sbuf)
1085 {
1086 return SMB_VFS_FILE_ID_CREATE(conn, sbuf);
1087 }
1088
1089 int smb_vfs_call_connect(struct vfs_handle_struct *handle,
1090 const char *service, const char *user)
1091 {
1092 VFS_FIND(connect_fn);
1093 return handle->fns->connect_fn(handle, service, user);
1094 }
1095
1096 void smb_vfs_call_disconnect(struct vfs_handle_struct *handle)
1097 {
1098 VFS_FIND(disconnect);
1099 handle->fns->disconnect(handle);
1100 }
1101
1102 uint64_t smb_vfs_call_disk_free(struct vfs_handle_struct *handle,
1103 const char *path, bool small_query,
1104 uint64_t *bsize, uint64_t *dfree,
1105 uint64_t *dsize)
1106 {
1107 VFS_FIND(disk_free);
1108 return handle->fns->disk_free(handle, path, small_query, bsize, dfree,
1109 dsize);
1110 }
1111
1112 int smb_vfs_call_get_quota(struct vfs_handle_struct *handle,
1113 enum SMB_QUOTA_TYPE qtype, unid_t id,
1114 SMB_DISK_QUOTA *qt)
1115 {
1116 VFS_FIND(get_quota);
1117 return handle->fns->get_quota(handle, qtype, id, qt);
1118 }
1119
1120 int smb_vfs_call_set_quota(struct vfs_handle_struct *handle,
1121 enum SMB_QUOTA_TYPE qtype, unid_t id,
1122 SMB_DISK_QUOTA *qt)
1123 {
1124 VFS_FIND(set_quota);
1125 return handle->fns->set_quota(handle, qtype, id, qt);
1126 }
1127
1128 int smb_vfs_call_get_shadow_copy_data(struct vfs_handle_struct *handle,
1129 struct files_struct *fsp,
1130 SHADOW_COPY_DATA *shadow_copy_data,
1131 bool labels)
1132 {
1133 VFS_FIND(get_shadow_copy_data);
1134 return handle->fns->get_shadow_copy_data(handle, fsp, shadow_copy_data,
1135 labels);
1136 }
1137 int smb_vfs_call_statvfs(struct vfs_handle_struct *handle, const char *path,
1138 struct vfs_statvfs_struct *statbuf)
1139 {
1140 VFS_FIND(statvfs);
1141 return handle->fns->statvfs(handle, path, statbuf);
1142 }
1143
1144 uint32_t smb_vfs_call_fs_capabilities(struct vfs_handle_struct *handle,
1145 enum timestamp_set_resolution *p_ts_res)
1146 {
1147 VFS_FIND(fs_capabilities);
1148 return handle->fns->fs_capabilities(handle, p_ts_res);
1149 }
1150
1151 SMB_STRUCT_DIR *smb_vfs_call_opendir(struct vfs_handle_struct *handle,
1152 const char *fname, const char *mask,
1153 uint32 attributes)
1154 {
1155 VFS_FIND(opendir);
1156 return handle->fns->opendir(handle, fname, mask, attributes);
1157 }
1158
1159 SMB_STRUCT_DIRENT *smb_vfs_call_readdir(struct vfs_handle_struct *handle,
1160 SMB_STRUCT_DIR *dirp,
1161 SMB_STRUCT_STAT *sbuf)
1162 {
1163 VFS_FIND(readdir);
1164 return handle->fns->readdir(handle, dirp, sbuf);
1165 }
1166
1167 void smb_vfs_call_seekdir(struct vfs_handle_struct *handle,
1168 SMB_STRUCT_DIR *dirp, long offset)
1169 {
1170 VFS_FIND(seekdir);
1171 handle->fns->seekdir(handle, dirp, offset);
1172 }
1173
1174 long smb_vfs_call_telldir(struct vfs_handle_struct *handle,
1175 SMB_STRUCT_DIR *dirp)
1176 {
1177 VFS_FIND(telldir);
1178 return handle->fns->telldir(handle, dirp);
1179 }
1180
1181 void smb_vfs_call_rewind_dir(struct vfs_handle_struct *handle,
1182 SMB_STRUCT_DIR *dirp)
1183 {
1184 VFS_FIND(rewind_dir);
1185 handle->fns->rewind_dir(handle, dirp);
1186 }
1187
1188 int smb_vfs_call_mkdir(struct vfs_handle_struct *handle, const char *path,
1189 mode_t mode)
1190 {
1191 VFS_FIND(mkdir);
1192 return handle->fns->mkdir(handle, path, mode);
1193 }
1194
1195 int smb_vfs_call_rmdir(struct vfs_handle_struct *handle, const char *path)
1196 {
1197 VFS_FIND(rmdir);
1198 return handle->fns->rmdir(handle, path);
1199 }
1200
1201 int smb_vfs_call_closedir(struct vfs_handle_struct *handle,
1202 SMB_STRUCT_DIR *dir)
1203 {
1204 VFS_FIND(closedir);
1205 return handle->fns->closedir(handle, dir);
1206 }
1207
1208 void smb_vfs_call_init_search_op(struct vfs_handle_struct *handle,
1209 SMB_STRUCT_DIR *dirp)
1210 {
1211 VFS_FIND(init_search_op);
1212 handle->fns->init_search_op(handle, dirp);
1213 }
1214
1215 int smb_vfs_call_open(struct vfs_handle_struct *handle,
1216 struct smb_filename *smb_fname, struct files_struct *fsp,
1217 int flags, mode_t mode)
1218 {
1219 VFS_FIND(open);
1220 return handle->fns->open(handle, smb_fname, fsp, flags, mode);
1221 }
1222
1223 NTSTATUS smb_vfs_call_create_file(struct vfs_handle_struct *handle,
1224 struct smb_request *req,
1225 uint16_t root_dir_fid,
1226 struct smb_filename *smb_fname,
1227 uint32_t access_mask,
1228 uint32_t share_access,
1229 uint32_t create_disposition,
1230 uint32_t create_options,
1231 uint32_t file_attributes,
1232 uint32_t oplock_request,
1233 uint64_t allocation_size,
1234 uint32_t private_flags,
1235 struct security_descriptor *sd,
1236 struct ea_list *ea_list,
1237 files_struct **result,
1238 int *pinfo)
1239 {
1240 VFS_FIND(create_file);
1241 return handle->fns->create_file(
1242 handle, req, root_dir_fid, smb_fname, access_mask,
1243 share_access, create_disposition, create_options,
1244 file_attributes, oplock_request, allocation_size,
1245 private_flags, sd, ea_list,
1246 result, pinfo);
1247 }
1248
1249 int smb_vfs_call_close_fn(struct vfs_handle_struct *handle,
1250 struct files_struct *fsp)
1251 {
1252 VFS_FIND(close_fn);
1253 return handle->fns->close_fn(handle, fsp);
1254 }
1255
1256 ssize_t smb_vfs_call_vfs_read(struct vfs_handle_struct *handle,
1257 struct files_struct *fsp, void *data, size_t n)
1258 {
1259 VFS_FIND(vfs_read);
1260 return handle->fns->vfs_read(handle, fsp, data, n);
1261 }
1262
1263 ssize_t smb_vfs_call_pread(struct vfs_handle_struct *handle,
1264 struct files_struct *fsp, void *data, size_t n,
1265 SMB_OFF_T offset)
1266 {
1267 VFS_FIND(pread);
1268 return handle->fns->pread(handle, fsp, data, n, offset);
1269 }
1270
1271 ssize_t smb_vfs_call_write(struct vfs_handle_struct *handle,
1272 struct files_struct *fsp, const void *data,
1273 size_t n)
1274 {
1275 VFS_FIND(write);
1276 return handle->fns->write(handle, fsp, data, n);
1277 }
1278
1279 ssize_t smb_vfs_call_pwrite(struct vfs_handle_struct *handle,
1280 struct files_struct *fsp, const void *data,
1281 size_t n, SMB_OFF_T offset)
1282 {
1283 VFS_FIND(pwrite);
1284 return handle->fns->pwrite(handle, fsp, data, n, offset);
1285 }
1286
1287 SMB_OFF_T smb_vfs_call_lseek(struct vfs_handle_struct *handle,
1288 struct files_struct *fsp, SMB_OFF_T offset,
1289 int whence)
1290 {
1291 VFS_FIND(lseek);
1292 return handle->fns->lseek(handle, fsp, offset, whence);
1293 }
1294
1295 ssize_t smb_vfs_call_sendfile(struct vfs_handle_struct *handle, int tofd,
1296 files_struct *fromfsp, const DATA_BLOB *header,
1297 SMB_OFF_T offset, size_t count)
1298 {
1299 VFS_FIND(sendfile);
1300 return handle->fns->sendfile(handle, tofd, fromfsp, header, offset,
1301 count);
1302 }
1303
1304 ssize_t smb_vfs_call_recvfile(struct vfs_handle_struct *handle, int fromfd,
1305 files_struct *tofsp, SMB_OFF_T offset,
1306 size_t count)
1307 {
1308 VFS_FIND(recvfile);
1309 return handle->fns->recvfile(handle, fromfd, tofsp, offset, count);
1310 }
1311
1312 int smb_vfs_call_rename(struct vfs_handle_struct *handle,
1313 const struct smb_filename *smb_fname_src,
1314 const struct smb_filename *smb_fname_dst)
1315 {
1316 VFS_FIND(rename);
1317 return handle->fns->rename(handle, smb_fname_src, smb_fname_dst);
1318 }
1319
1320 int smb_vfs_call_fsync(struct vfs_handle_struct *handle,
1321 struct files_struct *fsp)
1322 {
1323 VFS_FIND(fsync);
1324 return handle->fns->fsync(handle, fsp);
1325 }
1326
1327 int smb_vfs_call_stat(struct vfs_handle_struct *handle,
1328 struct smb_filename *smb_fname)
1329 {
1330 VFS_FIND(stat);
1331 return handle->fns->stat(handle, smb_fname);
1332 }
1333
1334 int smb_vfs_call_fstat(struct vfs_handle_struct *handle,
1335 struct files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1336 {
1337 VFS_FIND(fstat);
1338 return handle->fns->fstat(handle, fsp, sbuf);
1339 }
1340
1341 int smb_vfs_call_lstat(struct vfs_handle_struct *handle,
1342 struct smb_filename *smb_filename)
1343 {
1344 VFS_FIND(lstat);
1345 return handle->fns->lstat(handle, smb_filename);
1346 }
1347
1348 uint64_t smb_vfs_call_get_alloc_size(struct vfs_handle_struct *handle,
1349 struct files_struct *fsp,
1350 const SMB_STRUCT_STAT *sbuf)
1351 {
1352 VFS_FIND(get_alloc_size);
1353 return handle->fns->get_alloc_size(handle, fsp, sbuf);
1354 }
1355
1356 int smb_vfs_call_unlink(struct vfs_handle_struct *handle,
1357 const struct smb_filename *smb_fname)
1358 {
1359 VFS_FIND(unlink);
1360 return handle->fns->unlink(handle, smb_fname);
1361 }
1362
1363 int smb_vfs_call_chmod(struct vfs_handle_struct *handle, const char *path,
1364 mode_t mode)
1365 {
1366 VFS_FIND(chmod);
1367 return handle->fns->chmod(handle, path, mode);
1368 }
1369
1370 int smb_vfs_call_fchmod(struct vfs_handle_struct *handle,
1371 struct files_struct *fsp, mode_t mode)
1372 {
1373 VFS_FIND(fchmod);
1374 return handle->fns->fchmod(handle, fsp, mode);
1375 }
1376
1377 int smb_vfs_call_chown(struct vfs_handle_struct *handle, const char *path,
1378 uid_t uid, gid_t gid)
1379 {
1380 VFS_FIND(chown);
1381 return handle->fns->chown(handle, path, uid, gid);
1382 }
1383
1384 int smb_vfs_call_fchown(struct vfs_handle_struct *handle,
1385 struct files_struct *fsp, uid_t uid, gid_t gid)
1386 {
1387 VFS_FIND(fchown);
1388 return handle->fns->fchown(handle, fsp, uid, gid);
1389 }
1390
1391 int smb_vfs_call_lchown(struct vfs_handle_struct *handle, const char *path,
1392 uid_t uid, gid_t gid)
1393 {
1394 VFS_FIND(lchown);
1395 return handle->fns->lchown(handle, path, uid, gid);
1396 }
1397
1398 int smb_vfs_call_chdir(struct vfs_handle_struct *handle, const char *path)
1399 {
1400 VFS_FIND(chdir);
1401 return handle->fns->chdir(handle, path);
1402 }
1403
1404 char *smb_vfs_call_getwd(struct vfs_handle_struct *handle, char *buf)
1405 {
1406 VFS_FIND(getwd);
1407 return handle->fns->getwd(handle, buf);
1408 }
1409
1410 int smb_vfs_call_ntimes(struct vfs_handle_struct *handle,
1411 const struct smb_filename *smb_fname,
1412 struct smb_file_time *ft)
1413 {
1414 VFS_FIND(ntimes);
1415 return handle->fns->ntimes(handle, smb_fname, ft);
1416 }
1417
1418 int smb_vfs_call_ftruncate(struct vfs_handle_struct *handle,
1419 struct files_struct *fsp, SMB_OFF_T offset)
1420 {
1421 VFS_FIND(ftruncate);
1422 return handle->fns->ftruncate(handle, fsp, offset);
1423 }
1424
1425 int smb_vfs_call_kernel_flock(struct vfs_handle_struct *handle,
1426 struct files_struct *fsp, uint32 share_mode,
1427 uint32_t access_mask)
1428 {
1429 VFS_FIND(kernel_flock);
1430 return handle->fns->kernel_flock(handle, fsp, share_mode,
1431 access_mask);
1432 }
1433
1434 int smb_vfs_call_linux_setlease(struct vfs_handle_struct *handle,
1435 struct files_struct *fsp, int leasetype)
1436 {
1437 VFS_FIND(linux_setlease);
1438 return handle->fns->linux_setlease(handle, fsp, leasetype);
1439 }
1440
1441 int smb_vfs_call_symlink(struct vfs_handle_struct *handle, const char *oldpath,
1442 const char *newpath)
1443 {
1444 VFS_FIND(symlink);
1445 return handle->fns->symlink(handle, oldpath, newpath);
1446 }
1447
1448 int smb_vfs_call_vfs_readlink(struct vfs_handle_struct *handle,
1449 const char *path, char *buf, size_t bufsiz)
1450 {
1451 VFS_FIND(vfs_readlink);
1452 return handle->fns->vfs_readlink(handle, path, buf, bufsiz);
1453 }
1454
1455 int smb_vfs_call_link(struct vfs_handle_struct *handle, const char *oldpath,
1456 const char *newpath)
1457 {
1458 VFS_FIND(link);
1459 return handle->fns->link(handle, oldpath, newpath);
1460 }
1461
1462 int smb_vfs_call_mknod(struct vfs_handle_struct *handle, const char *path,
1463 mode_t mode, SMB_DEV_T dev)
1464 {
1465 VFS_FIND(mknod);
1466 return handle->fns->mknod(handle, path, mode, dev);
1467 }
1468
1469 char *smb_vfs_call_realpath(struct vfs_handle_struct *handle,
1470 const char *path, char *resolved_path)
1471 {
1472 VFS_FIND(realpath);
1473 return handle->fns->realpath(handle, path, resolved_path);
1474 }
1475
1476 NTSTATUS smb_vfs_call_notify_watch(struct vfs_handle_struct *handle,
1477 struct sys_notify_context *ctx,
1478 struct notify_entry *e,
1479 void (*callback)(struct sys_notify_context *ctx,
1480 void *private_data,
1481 struct notify_event *ev),
1482 void *private_data, void *handle_p)
1483 {
1484 VFS_FIND(notify_watch);
1485 return handle->fns->notify_watch(handle, ctx, e, callback,
1486 private_data, handle_p);
1487 }
1488
1489 int smb_vfs_call_chflags(struct vfs_handle_struct *handle, const char *path,
1490 unsigned int flags)
1491 {
1492 VFS_FIND(chflags);
1493 return handle->fns->chflags(handle, path, flags);
1494 }
1495
1496 struct file_id smb_vfs_call_file_id_create(struct vfs_handle_struct *handle,
1497 const SMB_STRUCT_STAT *sbuf)
1498 {
1499 VFS_FIND(file_id_create);
1500 return handle->fns->file_id_create(handle, sbuf);
1501 }
1502
1503 NTSTATUS smb_vfs_call_streaminfo(struct vfs_handle_struct *handle,
1504 struct files_struct *fsp,
1505 const char *fname,
1506 TALLOC_CTX *mem_ctx,
1507 unsigned int *num_streams,
1508 struct stream_struct **streams)
1509 {
1510 VFS_FIND(streaminfo);
1511 return handle->fns->streaminfo(handle, fsp, fname, mem_ctx,
1512 num_streams, streams);
1513 }
1514
1515 int smb_vfs_call_get_real_filename(struct vfs_handle_struct *handle,
1516 const char *path, const char *name,
1517 TALLOC_CTX *mem_ctx, char **found_name)
1518 {
1519 VFS_FIND(get_real_filename);
1520 return handle->fns->get_real_filename(handle, path, name, mem_ctx,
1521 found_name);
1522 }
1523
1524 const char *smb_vfs_call_connectpath(struct vfs_handle_struct *handle,
1525 const char *filename)
1526 {
1527 VFS_FIND(connectpath);
1528 return handle->fns->connectpath(handle, filename);
1529 }
1530
1531 bool smb_vfs_call_strict_lock(struct vfs_handle_struct *handle,
1532 struct files_struct *fsp,
1533 struct lock_struct *plock)
1534 {
1535 VFS_FIND(strict_lock);
1536 return handle->fns->strict_lock(handle, fsp, plock);
1537 }
1538
1539 void smb_vfs_call_strict_unlock(struct vfs_handle_struct *handle,
1540 struct files_struct *fsp,
1541 struct lock_struct *plock)
1542 {
1543 VFS_FIND(strict_unlock);
1544 handle->fns->strict_unlock(handle, fsp, plock);
1545 }
1546
1547 NTSTATUS smb_vfs_call_translate_name(struct vfs_handle_struct *handle,
1548 const char *name,
1549 enum vfs_translate_direction direction,
1550 TALLOC_CTX *mem_ctx,
1551 char **mapped_name)
1552 {
1553 VFS_FIND(translate_name);
1554 return handle->fns->translate_name(handle, name, direction, mem_ctx,
1555 mapped_name);
1556 }
1557
1558 NTSTATUS smb_vfs_call_fget_nt_acl(struct vfs_handle_struct *handle,
1559 struct files_struct *fsp,
1560 uint32 security_info,
1561 struct security_descriptor **ppdesc)
1562 {
1563 VFS_FIND(fget_nt_acl);
1564 return handle->fns->fget_nt_acl(handle, fsp, security_info,
1565 ppdesc);
1566 }
1567
1568 NTSTATUS smb_vfs_call_get_nt_acl(struct vfs_handle_struct *handle,
1569 const char *name,
1570 uint32 security_info,
1571 struct security_descriptor **ppdesc)
1572 {
1573 VFS_FIND(get_nt_acl);
1574 return handle->fns->get_nt_acl(handle, name, security_info, ppdesc);
1575 }
1576
1577 NTSTATUS smb_vfs_call_fset_nt_acl(struct vfs_handle_struct *handle,
1578 struct files_struct *fsp,
1579 uint32 security_info_sent,
1580 const struct security_descriptor *psd)
1581 {
1582 VFS_FIND(fset_nt_acl);
1583 return handle->fns->fset_nt_acl(handle, fsp, security_info_sent, psd);
1584 }
1585
1586 int smb_vfs_call_chmod_acl(struct vfs_handle_struct *handle, const char *name,
1587 mode_t mode)
1588 {
1589 VFS_FIND(chmod_acl);
1590 return handle->fns->chmod_acl(handle, name, mode);
1591 }
1592
1593 int smb_vfs_call_fchmod_acl(struct vfs_handle_struct *handle,
1594 struct files_struct *fsp, mode_t mode)
1595 {
1596 VFS_FIND(fchmod_acl);
1597 return handle->fns->fchmod_acl(handle, fsp, mode);
1598 }
1599
1600 int smb_vfs_call_sys_acl_get_entry(struct vfs_handle_struct *handle,
1601 SMB_ACL_T theacl, int entry_id,
1602 SMB_ACL_ENTRY_T *entry_p)
1603 {
1604 VFS_FIND(sys_acl_get_entry);
1605 return handle->fns->sys_acl_get_entry(handle, theacl, entry_id,
1606 entry_p);
1607 }
1608
1609 int smb_vfs_call_sys_acl_get_tag_type(struct vfs_handle_struct *handle,
1610 SMB_ACL_ENTRY_T entry_d,
1611 SMB_ACL_TAG_T *tag_type_p)
1612 {
1613 VFS_FIND(sys_acl_get_tag_type);
1614 return handle->fns->sys_acl_get_tag_type(handle, entry_d, tag_type_p);
1615 }
1616
1617 int smb_vfs_call_sys_acl_get_permset(struct vfs_handle_struct *handle,
1618 SMB_ACL_ENTRY_T entry_d,
1619 SMB_ACL_PERMSET_T *permset_p)
1620 {
1621 VFS_FIND(sys_acl_get_permset);
1622 return handle->fns->sys_acl_get_permset(handle, entry_d, permset_p);
1623 }
1624
1625 void * smb_vfs_call_sys_acl_get_qualifier(struct vfs_handle_struct *handle,
1626 SMB_ACL_ENTRY_T entry_d)
1627 {
1628 VFS_FIND(sys_acl_get_qualifier);
1629 return handle->fns->sys_acl_get_qualifier(handle, entry_d);
1630 }
1631
1632 SMB_ACL_T smb_vfs_call_sys_acl_get_file(struct vfs_handle_struct *handle,
1633 const char *path_p,
1634 SMB_ACL_TYPE_T type)
1635 {
1636 VFS_FIND(sys_acl_get_file);
1637 return handle->fns->sys_acl_get_file(handle, path_p, type);
1638 }
1639
1640 SMB_ACL_T smb_vfs_call_sys_acl_get_fd(struct vfs_handle_struct *handle,
1641 struct files_struct *fsp)
1642 {
1643 VFS_FIND(sys_acl_get_fd);
1644 return handle->fns->sys_acl_get_fd(handle, fsp);
1645 }
1646
1647 int smb_vfs_call_sys_acl_clear_perms(struct vfs_handle_struct *handle,
1648 SMB_ACL_PERMSET_T permset)
1649 {
1650 VFS_FIND(sys_acl_clear_perms);
1651 return handle->fns->sys_acl_clear_perms(handle, permset);
1652 }
1653
1654 int smb_vfs_call_sys_acl_add_perm(struct vfs_handle_struct *handle,
1655 SMB_ACL_PERMSET_T permset,
1656 SMB_ACL_PERM_T perm)
1657 {
1658 VFS_FIND(sys_acl_add_perm);
1659 return handle->fns->sys_acl_add_perm(handle, permset, perm);
1660 }
1661
1662 char * smb_vfs_call_sys_acl_to_text(struct vfs_handle_struct *handle,
1663 SMB_ACL_T theacl, ssize_t *plen)
1664 {
1665 VFS_FIND(sys_acl_to_text);
1666 return handle->fns->sys_acl_to_text(handle, theacl, plen);
1667 }
1668
1669 SMB_ACL_T smb_vfs_call_sys_acl_init(struct vfs_handle_struct *handle,
1670 int count)
1671 {
1672 VFS_FIND(sys_acl_init);
1673 return handle->fns->sys_acl_init(handle, count);
1674 }
1675
1676 int smb_vfs_call_sys_acl_create_entry(struct vfs_handle_struct *handle,
1677 SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry)
1678 {
1679 VFS_FIND(sys_acl_create_entry);
1680 return handle->fns->sys_acl_create_entry(handle, pacl, pentry);
1681 }
1682
1683 int smb_vfs_call_sys_acl_set_tag_type(struct vfs_handle_struct *handle,
1684 SMB_ACL_ENTRY_T entry,
1685 SMB_ACL_TAG_T tagtype)
1686 {
1687 VFS_FIND(sys_acl_set_tag_type);
1688 return handle->fns->sys_acl_set_tag_type(handle, entry, tagtype);
1689 }
1690
1691 int smb_vfs_call_sys_acl_set_qualifier(struct vfs_handle_struct *handle,
1692 SMB_ACL_ENTRY_T entry, void *qual)
1693 {
1694 VFS_FIND(sys_acl_set_qualifier);
1695 return handle->fns->sys_acl_set_qualifier(handle, entry, qual);
1696 }
1697
1698 int smb_vfs_call_sys_acl_set_permset(struct vfs_handle_struct *handle,
1699 SMB_ACL_ENTRY_T entry,
1700 SMB_ACL_PERMSET_T permset)
1701 {
1702 VFS_FIND(sys_acl_set_permset);
1703 return handle->fns->sys_acl_set_permset(handle, entry, permset);
1704 }
1705
1706 int smb_vfs_call_sys_acl_valid(struct vfs_handle_struct *handle,
1707 SMB_ACL_T theacl)
1708 {
1709 VFS_FIND(sys_acl_valid);
1710 return handle->fns->sys_acl_valid(handle, theacl);
1711 }
1712
1713 int smb_vfs_call_sys_acl_set_file(struct vfs_handle_struct *handle,
1714 const char *name, SMB_ACL_TYPE_T acltype,
1715 SMB_ACL_T theacl)
1716 {
1717 VFS_FIND(sys_acl_set_file);
1718 return handle->fns->sys_acl_set_file(handle, name, acltype, theacl);
1719 }
1720
1721 int smb_vfs_call_sys_acl_set_fd(struct vfs_handle_struct *handle,
1722 struct files_struct *fsp, SMB_ACL_T theacl)
1723 {
1724 VFS_FIND(sys_acl_set_fd);
1725 return handle->fns->sys_acl_set_fd(handle, fsp, theacl);
1726 }
1727
1728 int smb_vfs_call_sys_acl_delete_def_file(struct vfs_handle_struct *handle,
1729 const char *path)
1730 {
1731 VFS_FIND(sys_acl_delete_def_file);
1732 return handle->fns->sys_acl_delete_def_file(handle, path);
1733 }
1734
1735 int smb_vfs_call_sys_acl_get_perm(struct vfs_handle_struct *handle,
1736 SMB_ACL_PERMSET_T permset,
1737 SMB_ACL_PERM_T perm)
1738 {
1739 VFS_FIND(sys_acl_get_perm);
1740 return handle->fns->sys_acl_get_perm(handle, permset, perm);
1741 }
1742
1743 int smb_vfs_call_sys_acl_free_text(struct vfs_handle_struct *handle,
1744 char *text)
1745 {
1746 VFS_FIND(sys_acl_free_text);
1747 return handle->fns->sys_acl_free_text(handle, text);
1748 }
1749
1750 int smb_vfs_call_sys_acl_free_acl(struct vfs_handle_struct *handle,
1751 SMB_ACL_T posix_acl)
1752 {
1753 VFS_FIND(sys_acl_free_acl);
1754 return handle->fns->sys_acl_free_acl(handle, posix_acl);
1755 }
1756
1757 int smb_vfs_call_sys_acl_free_qualifier(struct vfs_handle_struct *handle,
1758 void *qualifier, SMB_ACL_TAG_T tagtype)
1759 {
1760 VFS_FIND(sys_acl_free_qualifier);
1761 return handle->fns->sys_acl_free_qualifier(handle, qualifier, tagtype);
1762 }
1763
1764 ssize_t smb_vfs_call_getxattr(struct vfs_handle_struct *handle,
1765 const char *path, const char *name, void *value,
1766 size_t size)
1767 {
1768 VFS_FIND(getxattr);
1769 return handle->fns->getxattr(handle, path, name, value, size);
1770 }
1771
1772 ssize_t smb_vfs_call_lgetxattr(struct vfs_handle_struct *handle,
1773 const char *path, const char *name, void *value,
1774 size_t size)
1775 {
1776 VFS_FIND(lgetxattr);
1777 return handle->fns->lgetxattr(handle, path, name, value, size);
1778 }
1779
1780 ssize_t smb_vfs_call_fgetxattr(struct vfs_handle_struct *handle,
1781 struct files_struct *fsp, const char *name,
1782 void *value, size_t size)
1783 {
1784 VFS_FIND(fgetxattr);
1785 return handle->fns->fgetxattr(handle, fsp, name, value, size);
1786 }
1787
1788 ssize_t smb_vfs_call_listxattr(struct vfs_handle_struct *handle,
1789 const char *path, char *list, size_t size)
1790 {
1791 VFS_FIND(listxattr);
1792 return handle->fns->listxattr(handle, path, list, size);
1793 }
1794
1795 ssize_t smb_vfs_call_llistxattr(struct vfs_handle_struct *handle,
1796 const char *path, char *list, size_t size)
1797 {
1798 VFS_FIND(llistxattr);
1799 return handle->fns->llistxattr(handle, path, list, size);
1800 }
1801
1802 ssize_t smb_vfs_call_flistxattr(struct vfs_handle_struct *handle,
1803 struct files_struct *fsp, char *list,
1804 size_t size)
1805 {
1806 VFS_FIND(flistxattr);
1807 return handle->fns->flistxattr(handle, fsp, list, size);
1808 }
1809
1810 int smb_vfs_call_removexattr(struct vfs_handle_struct *handle,
1811 const char *path, const char *name)
1812 {
1813 VFS_FIND(removexattr);
1814 return handle->fns->removexattr(handle, path, name);
1815 }
1816
1817 int smb_vfs_call_lremovexattr(struct vfs_handle_struct *handle,
1818 const char *path, const char *name)
1819 {
1820 VFS_FIND(lremovexattr);
1821 return handle->fns->lremovexattr(handle, path, name);
1822 }
1823
1824 int smb_vfs_call_fremovexattr(struct vfs_handle_struct *handle,
1825 struct files_struct *fsp, const char *name)
1826 {
1827 VFS_FIND(fremovexattr);
1828 return handle->fns->fremovexattr(handle, fsp, name);
1829 }
1830
1831 int smb_vfs_call_setxattr(struct vfs_handle_struct *handle, const char *path,
1832 const char *name, const void *value, size_t size,
1833 int flags)
1834 {
1835 VFS_FIND(setxattr);
1836 return handle->fns->setxattr(handle, path, name, value, size, flags);
1837 }
1838
1839 int smb_vfs_call_lsetxattr(struct vfs_handle_struct *handle, const char *path,
1840 const char *name, const void *value, size_t size,
1841 int flags)
1842 {
1843 VFS_FIND(lsetxattr);
1844 return handle->fns->lsetxattr(handle, path, name, value, size, flags);
1845 }
1846
1847 int smb_vfs_call_fsetxattr(struct vfs_handle_struct *handle,
1848 struct files_struct *fsp, const char *name,
1849 const void *value, size_t size, int flags)
1850 {
1851 VFS_FIND(fsetxattr);
1852 return handle->fns->fsetxattr(handle, fsp, name, value, size, flags);
1853 }
1854
1855 int smb_vfs_call_aio_read(struct vfs_handle_struct *handle,
1856 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
1857 {
1858 VFS_FIND(aio_read);
1859 return handle->fns->aio_read(handle, fsp, aiocb);
1860 }
1861
1862 int smb_vfs_call_aio_write(struct vfs_handle_struct *handle,
1863 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
1864 {
1865 VFS_FIND(aio_write);
1866 return handle->fns->aio_write(handle, fsp, aiocb);
1867 }
1868
1869 ssize_t smb_vfs_call_aio_return_fn(struct vfs_handle_struct *handle,
1870 struct files_struct *fsp,
1871 SMB_STRUCT_AIOCB *aiocb)
1872 {
1873 VFS_FIND(aio_return_fn);
1874 return handle->fns->aio_return_fn(handle, fsp, aiocb);
1875 }
1876
1877 int smb_vfs_call_aio_cancel(struct vfs_handle_struct *handle,
1878 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
1879 {
1880 VFS_FIND(aio_cancel);
1881 return handle->fns->aio_cancel(handle, fsp, aiocb);
1882 }
1883
1884 int smb_vfs_call_aio_error_fn(struct vfs_handle_struct *handle,
1885 struct files_struct *fsp,
1886 SMB_STRUCT_AIOCB *aiocb)
1887 {
1888 VFS_FIND(aio_error_fn);
1889 return handle->fns->aio_error_fn(handle, fsp, aiocb);
1890 }
1891
1892 int smb_vfs_call_aio_fsync(struct vfs_handle_struct *handle,
1893 struct files_struct *fsp, int op,
1894 SMB_STRUCT_AIOCB *aiocb)
1895 {
1896 VFS_FIND(aio_fsync);
1897 return handle->fns->aio_fsync(handle, fsp, op, aiocb);
1898 }
1899
1900 int smb_vfs_call_aio_suspend(struct vfs_handle_struct *handle,
1901 struct files_struct *fsp,
1902 const SMB_STRUCT_AIOCB * const aiocb[], int n,
1903 const struct timespec *timeout)
1904 {
1905 VFS_FIND(aio_suspend);
1906 return handle->fns->aio_suspend(handle, fsp, aiocb, n, timeout);
1907 }
1908
1909 bool smb_vfs_call_aio_force(struct vfs_handle_struct *handle,
1910 struct files_struct *fsp)
1911 {
1912 VFS_FIND(aio_force);
1913 return handle->fns->aio_force(handle, fsp);
1914 }
1915
1916 bool smb_vfs_call_is_offline(struct vfs_handle_struct *handle,
1917 const char *path, SMB_STRUCT_STAT *sbuf)
1918 {
1919 VFS_FIND(is_offline);
1920 return handle->fns->is_offline(handle, path, sbuf);
1921 }
1922
1923 int smb_vfs_call_set_offline(struct vfs_handle_struct *handle,
1924 const char *path)
1925 {
1926 VFS_FIND(set_offline);
1927 return handle->fns->set_offline(handle, path);
1928 }
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