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Fix bug 7104 - "wide links" and "unix extensions" are incompatible.
[Samba/kamenim.git] / source3 / smbd / vfs.c
blob94bdb1f495c423ce3eb0c252ec3e0c6b3f0308b1
1 /*
2 Unix SMB/Netbios implementation.
3 Version 1.9.
4 VFS initialisation and support functions
5 Copyright (C) Tim Potter 1999
6 Copyright (C) Alexander Bokovoy 2002
7 Copyright (C) James Peach 2006
8 Copyright (C) Volker Lendecke 2009
9
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
14
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>.
22
23 This work was sponsored by Optifacio Software Services, Inc.
24 */
25
26 #include "includes.h"
27 #include "smbd/globals.h"
28
29 #undef DBGC_CLASS
30 #define DBGC_CLASS DBGC_VFS
31
32 static_decl_vfs;
33
34 struct vfs_init_function_entry {
35 char *name;
36 struct vfs_init_function_entry *prev, *next;
37 const struct vfs_fn_pointers *fns;
38 };
39
40 /****************************************************************************
41 maintain the list of available backends
42 ****************************************************************************/
43
44 static struct vfs_init_function_entry *vfs_find_backend_entry(const char *name)
45 {
46 struct vfs_init_function_entry *entry = backends;
47
48 DEBUG(10, ("vfs_find_backend_entry called for %s\n", name));
49
50 while(entry) {
51 if (strcmp(entry->name, name)==0) return entry;
52 entry = entry->next;
53 }
54
55 return NULL;
56 }
57
58 NTSTATUS smb_register_vfs(int version, const char *name,
59 const struct vfs_fn_pointers *fns)
60 {
61 struct vfs_init_function_entry *entry = backends;
62
63 if ((version != SMB_VFS_INTERFACE_VERSION)) {
64 DEBUG(0, ("Failed to register vfs module.\n"
65 "The module was compiled against SMB_VFS_INTERFACE_VERSION %d,\n"
66 "current SMB_VFS_INTERFACE_VERSION is %d.\n"
67 "Please recompile against the current Samba Version!\n",
68 version, SMB_VFS_INTERFACE_VERSION));
69 return NT_STATUS_OBJECT_TYPE_MISMATCH;
70 }
71
72 if (!name || !name[0]) {
73 DEBUG(0,("smb_register_vfs() called with NULL pointer or empty name!\n"));
74 return NT_STATUS_INVALID_PARAMETER;
75 }
76
77 if (vfs_find_backend_entry(name)) {
78 DEBUG(0,("VFS module %s already loaded!\n", name));
79 return NT_STATUS_OBJECT_NAME_COLLISION;
80 }
81
82 entry = SMB_XMALLOC_P(struct vfs_init_function_entry);
83 entry->name = smb_xstrdup(name);
84 entry->fns = fns;
85
86 DLIST_ADD(backends, entry);
87 DEBUG(5, ("Successfully added vfs backend '%s'\n", name));
88 return NT_STATUS_OK;
89 }
90
91 /****************************************************************************
92 initialise default vfs hooks
93 ****************************************************************************/
94
95 static void vfs_init_default(connection_struct *conn)
96 {
97 DEBUG(3, ("Initialising default vfs hooks\n"));
98 vfs_init_custom(conn, DEFAULT_VFS_MODULE_NAME);
99 }
100
101 /****************************************************************************
102 initialise custom vfs hooks
103 ****************************************************************************/
104
105 bool vfs_init_custom(connection_struct *conn, const char *vfs_object)
106 {
107 char *module_path = NULL;
108 char *module_name = NULL;
109 char *module_param = NULL, *p;
110 vfs_handle_struct *handle;
111 const struct vfs_init_function_entry *entry;
112
113 if (!conn||!vfs_object||!vfs_object[0]) {
114 DEBUG(0,("vfs_init_custon() called with NULL pointer or emtpy vfs_object!\n"));
115 return False;
116 }
117
118 if(!backends) {
119 static_init_vfs;
120 }
121
122 DEBUG(3, ("Initialising custom vfs hooks from [%s]\n", vfs_object));
123
124 module_path = smb_xstrdup(vfs_object);
125
126 p = strchr_m(module_path, ':');
127
128 if (p) {
129 *p = 0;
130 module_param = p+1;
131 trim_char(module_param, ' ', ' ');
132 }
133
134 trim_char(module_path, ' ', ' ');
135
136 module_name = smb_xstrdup(module_path);
137
138 if ((module_name[0] == '/') &&
139 (strcmp(module_path, DEFAULT_VFS_MODULE_NAME) != 0)) {
140
141 /*
142 * Extract the module name from the path. Just use the base
143 * name of the last path component.
144 */
145
146 SAFE_FREE(module_name);
147 module_name = smb_xstrdup(strrchr_m(module_path, '/')+1);
148
149 p = strchr_m(module_name, '.');
150
151 if (p != NULL) {
152 *p = '\0';
153 }
154 }
155
156 /* First, try to load the module with the new module system */
157 entry = vfs_find_backend_entry(module_name);
158 if (!entry) {
159 NTSTATUS status;
160
161 DEBUG(5, ("vfs module [%s] not loaded - trying to load...\n",
162 vfs_object));
163
164 status = smb_probe_module("vfs", module_path);
165 if (!NT_STATUS_IS_OK(status)) {
166 DEBUG(0, ("error probing vfs module '%s': %s\n",
167 module_path, nt_errstr(status)));
168 goto fail;
169 }
170
171 entry = vfs_find_backend_entry(module_name);
172 if (!entry) {
173 DEBUG(0,("Can't find a vfs module [%s]\n",vfs_object));
174 goto fail;
175 }
176 }
177
178 DEBUGADD(5,("Successfully loaded vfs module [%s] with the new modules system\n", vfs_object));
179
180 handle = TALLOC_ZERO_P(conn, vfs_handle_struct);
181 if (!handle) {
182 DEBUG(0,("TALLOC_ZERO() failed!\n"));
183 goto fail;
184 }
185 handle->conn = conn;
186 handle->fns = entry->fns;
187 if (module_param) {
188 handle->param = talloc_strdup(conn, module_param);
189 }
190 DLIST_ADD(conn->vfs_handles, handle);
191
192 SAFE_FREE(module_path);
193 SAFE_FREE(module_name);
194 return True;
195
196 fail:
197 SAFE_FREE(module_path);
198 SAFE_FREE(module_name);
199 return False;
200 }
201
202 /*****************************************************************
203 Allow VFS modules to extend files_struct with VFS-specific state.
204 This will be ok for small numbers of extensions, but might need to
205 be refactored if it becomes more widely used.
206 ******************************************************************/
207
208 #define EXT_DATA_AREA(e) ((uint8 *)(e) + sizeof(struct vfs_fsp_data))
209
210 void *vfs_add_fsp_extension_notype(vfs_handle_struct *handle,
211 files_struct *fsp, size_t ext_size,
212 void (*destroy_fn)(void *p_data))
213 {
214 struct vfs_fsp_data *ext;
215 void * ext_data;
216
217 /* Prevent VFS modules adding multiple extensions. */
218 if ((ext_data = vfs_fetch_fsp_extension(handle, fsp))) {
219 return ext_data;
220 }
221
222 ext = (struct vfs_fsp_data *)TALLOC_ZERO(
223 handle->conn, sizeof(struct vfs_fsp_data) + ext_size);
224 if (ext == NULL) {
225 return NULL;
226 }
227
228 ext->owner = handle;
229 ext->next = fsp->vfs_extension;
230 ext->destroy = destroy_fn;
231 fsp->vfs_extension = ext;
232 return EXT_DATA_AREA(ext);
233 }
234
235 void vfs_remove_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
236 {
237 struct vfs_fsp_data *curr;
238 struct vfs_fsp_data *prev;
239
240 for (curr = fsp->vfs_extension, prev = NULL;
241 curr;
242 prev = curr, curr = curr->next) {
243 if (curr->owner == handle) {
244 if (prev) {
245 prev->next = curr->next;
246 } else {
247 fsp->vfs_extension = curr->next;
248 }
249 if (curr->destroy) {
250 curr->destroy(EXT_DATA_AREA(curr));
251 }
252 TALLOC_FREE(curr);
253 return;
254 }
255 }
256 }
257
258 void *vfs_memctx_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
259 {
260 struct vfs_fsp_data *head;
261
262 for (head = fsp->vfs_extension; head; head = head->next) {
263 if (head->owner == handle) {
264 return head;
265 }
266 }
267
268 return NULL;
269 }
270
271 void *vfs_fetch_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
272 {
273 struct vfs_fsp_data *head;
274
275 head = (struct vfs_fsp_data *)vfs_memctx_fsp_extension(handle, fsp);
276 if (head != NULL) {
277 return EXT_DATA_AREA(head);
278 }
279
280 return NULL;
281 }
282
283 #undef EXT_DATA_AREA
284
285 /*****************************************************************
286 Generic VFS init.
287 ******************************************************************/
288
289 bool smbd_vfs_init(connection_struct *conn)
290 {
291 const char **vfs_objects;
292 unsigned int i = 0;
293 int j = 0;
294
295 /* Normal share - initialise with disk access functions */
296 vfs_init_default(conn);
297 vfs_objects = lp_vfs_objects(SNUM(conn));
298
299 /* Override VFS functions if 'vfs object' was not specified*/
300 if (!vfs_objects || !vfs_objects[0])
301 return True;
302
303 for (i=0; vfs_objects[i] ;) {
304 i++;
305 }
306
307 for (j=i-1; j >= 0; j--) {
308 if (!vfs_init_custom(conn, vfs_objects[j])) {
309 DEBUG(0, ("smbd_vfs_init: vfs_init_custom failed for %s\n", vfs_objects[j]));
310 return False;
311 }
312 }
313 return True;
314 }
315
316 /*******************************************************************
317 Check if a file exists in the vfs.
318 ********************************************************************/
319
320 NTSTATUS vfs_file_exist(connection_struct *conn, struct smb_filename *smb_fname)
321 {
322 /* Only return OK if stat was successful and S_ISREG */
323 if ((SMB_VFS_STAT(conn, smb_fname) != -1) &&
324 S_ISREG(smb_fname->st.st_ex_mode)) {
325 return NT_STATUS_OK;
326 }
327
328 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
329 }
330
331 /****************************************************************************
332 Read data from fsp on the vfs. (note: EINTR re-read differs from vfs_write_data)
333 ****************************************************************************/
334
335 ssize_t vfs_read_data(files_struct *fsp, char *buf, size_t byte_count)
336 {
337 size_t total=0;
338
339 while (total < byte_count)
340 {
341 ssize_t ret = SMB_VFS_READ(fsp, buf + total,
342 byte_count - total);
343
344 if (ret == 0) return total;
345 if (ret == -1) {
346 if (errno == EINTR)
347 continue;
348 else
349 return -1;
350 }
351 total += ret;
352 }
353 return (ssize_t)total;
354 }
355
356 ssize_t vfs_pread_data(files_struct *fsp, char *buf,
357 size_t byte_count, SMB_OFF_T offset)
358 {
359 size_t total=0;
360
361 while (total < byte_count)
362 {
363 ssize_t ret = SMB_VFS_PREAD(fsp, buf + total,
364 byte_count - total, offset + total);
365
366 if (ret == 0) return total;
367 if (ret == -1) {
368 if (errno == EINTR)
369 continue;
370 else
371 return -1;
372 }
373 total += ret;
374 }
375 return (ssize_t)total;
376 }
377
378 /****************************************************************************
379 Write data to a fd on the vfs.
380 ****************************************************************************/
381
382 ssize_t vfs_write_data(struct smb_request *req,
383 files_struct *fsp,
384 const char *buffer,
385 size_t N)
386 {
387 size_t total=0;
388 ssize_t ret;
389
390 if (req && req->unread_bytes) {
391 SMB_ASSERT(req->unread_bytes == N);
392 /* VFS_RECVFILE must drain the socket
393 * before returning. */
394 req->unread_bytes = 0;
395 return SMB_VFS_RECVFILE(smbd_server_fd(),
396 fsp,
397 (SMB_OFF_T)-1,
398 N);
399 }
400
401 while (total < N) {
402 ret = SMB_VFS_WRITE(fsp, buffer + total, N - total);
403
404 if (ret == -1)
405 return -1;
406 if (ret == 0)
407 return total;
408
409 total += ret;
410 }
411 return (ssize_t)total;
412 }
413
414 ssize_t vfs_pwrite_data(struct smb_request *req,
415 files_struct *fsp,
416 const char *buffer,
417 size_t N,
418 SMB_OFF_T offset)
419 {
420 size_t total=0;
421 ssize_t ret;
422
423 if (req && req->unread_bytes) {
424 SMB_ASSERT(req->unread_bytes == N);
425 /* VFS_RECVFILE must drain the socket
426 * before returning. */
427 req->unread_bytes = 0;
428 return SMB_VFS_RECVFILE(smbd_server_fd(),
429 fsp,
430 offset,
431 N);
432 }
433
434 while (total < N) {
435 ret = SMB_VFS_PWRITE(fsp, buffer + total, N - total,
436 offset + total);
437
438 if (ret == -1)
439 return -1;
440 if (ret == 0)
441 return total;
442
443 total += ret;
444 }
445 return (ssize_t)total;
446 }
447 /****************************************************************************
448 An allocate file space call using the vfs interface.
449 Allocates space for a file from a filedescriptor.
450 Returns 0 on success, -1 on failure.
451 ****************************************************************************/
452
453 int vfs_allocate_file_space(files_struct *fsp, uint64_t len)
454 {
455 int ret;
456 SMB_STRUCT_STAT st;
457 connection_struct *conn = fsp->conn;
458 uint64_t space_avail;
459 uint64_t bsize,dfree,dsize;
460
461 /*
462 * Actually try and commit the space on disk....
463 */
464
465 DEBUG(10,("vfs_allocate_file_space: file %s, len %.0f\n",
466 fsp_str_dbg(fsp), (double)len));
467
468 if (((SMB_OFF_T)len) < 0) {
469 DEBUG(0,("vfs_allocate_file_space: %s negative len "
470 "requested.\n", fsp_str_dbg(fsp)));
471 errno = EINVAL;
472 return -1;
473 }
474
475 ret = SMB_VFS_FSTAT(fsp, &st);
476 if (ret == -1)
477 return ret;
478
479 if (len == (uint64_t)st.st_ex_size)
480 return 0;
481
482 if (len < (uint64_t)st.st_ex_size) {
483 /* Shrink - use ftruncate. */
484
485 DEBUG(10,("vfs_allocate_file_space: file %s, shrink. Current "
486 "size %.0f\n", fsp_str_dbg(fsp),
487 (double)st.st_ex_size));
488
489 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_ALLOC_SHRINK);
490
491 flush_write_cache(fsp, SIZECHANGE_FLUSH);
492 if ((ret = SMB_VFS_FTRUNCATE(fsp, (SMB_OFF_T)len)) != -1) {
493 set_filelen_write_cache(fsp, len);
494 }
495
496 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_ALLOC_SHRINK);
497
498 return ret;
499 }
500
501 /* Grow - we need to test if we have enough space. */
502
503 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_ALLOC_GROW);
504 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_ALLOC_GROW);
505
506 if (!lp_strict_allocate(SNUM(fsp->conn)))
507 return 0;
508
509 len -= st.st_ex_size;
510 len /= 1024; /* Len is now number of 1k blocks needed. */
511 space_avail = get_dfree_info(conn, fsp->fsp_name->base_name, false,
512 &bsize, &dfree, &dsize);
513 if (space_avail == (uint64_t)-1) {
514 return -1;
515 }
516
517 DEBUG(10,("vfs_allocate_file_space: file %s, grow. Current size %.0f, "
518 "needed blocks = %.0f, space avail = %.0f\n",
519 fsp_str_dbg(fsp), (double)st.st_ex_size, (double)len,
520 (double)space_avail));
521
522 if (len > space_avail) {
523 errno = ENOSPC;
524 return -1;
525 }
526
527 return 0;
528 }
529
530 /****************************************************************************
531 A vfs set_filelen call.
532 set the length of a file from a filedescriptor.
533 Returns 0 on success, -1 on failure.
534 ****************************************************************************/
535
536 int vfs_set_filelen(files_struct *fsp, SMB_OFF_T len)
537 {
538 int ret;
539
540 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_SET_FILE_LEN);
541
542 DEBUG(10,("vfs_set_filelen: ftruncate %s to len %.0f\n",
543 fsp_str_dbg(fsp), (double)len));
544 flush_write_cache(fsp, SIZECHANGE_FLUSH);
545 if ((ret = SMB_VFS_FTRUNCATE(fsp, len)) != -1) {
546 set_filelen_write_cache(fsp, len);
547 notify_fname(fsp->conn, NOTIFY_ACTION_MODIFIED,
548 FILE_NOTIFY_CHANGE_SIZE
549 | FILE_NOTIFY_CHANGE_ATTRIBUTES,
550 fsp->fsp_name->base_name);
551 }
552
553 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_SET_FILE_LEN);
554
555 return ret;
556 }
557
558 /****************************************************************************
559 A vfs fill sparse call.
560 Writes zeros from the end of file to len, if len is greater than EOF.
561 Used only by strict_sync.
562 Returns 0 on success, -1 on failure.
563 ****************************************************************************/
564
565 #define SPARSE_BUF_WRITE_SIZE (32*1024)
566
567 int vfs_fill_sparse(files_struct *fsp, SMB_OFF_T len)
568 {
569 int ret;
570 SMB_STRUCT_STAT st;
571 SMB_OFF_T offset;
572 size_t total;
573 size_t num_to_write;
574 ssize_t pwrite_ret;
575
576 ret = SMB_VFS_FSTAT(fsp, &st);
577 if (ret == -1) {
578 return ret;
579 }
580
581 if (len <= st.st_ex_size) {
582 return 0;
583 }
584
585 DEBUG(10,("vfs_fill_sparse: write zeros in file %s from len %.0f to "
586 "len %.0f (%.0f bytes)\n", fsp_str_dbg(fsp),
587 (double)st.st_ex_size, (double)len,
588 (double)(len - st.st_ex_size)));
589
590 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_FILL_SPARSE);
591
592 flush_write_cache(fsp, SIZECHANGE_FLUSH);
593
594 if (!sparse_buf) {
595 sparse_buf = SMB_CALLOC_ARRAY(char, SPARSE_BUF_WRITE_SIZE);
596 if (!sparse_buf) {
597 errno = ENOMEM;
598 ret = -1;
599 goto out;
600 }
601 }
602
603 offset = st.st_ex_size;
604 num_to_write = len - st.st_ex_size;
605 total = 0;
606
607 while (total < num_to_write) {
608 size_t curr_write_size = MIN(SPARSE_BUF_WRITE_SIZE, (num_to_write - total));
609
610 pwrite_ret = SMB_VFS_PWRITE(fsp, sparse_buf, curr_write_size, offset + total);
611 if (pwrite_ret == -1) {
612 DEBUG(10,("vfs_fill_sparse: SMB_VFS_PWRITE for file "
613 "%s failed with error %s\n",
614 fsp_str_dbg(fsp), strerror(errno)));
615 ret = -1;
616 goto out;
617 }
618 if (pwrite_ret == 0) {
619 ret = 0;
620 goto out;
621 }
622
623 total += pwrite_ret;
624 }
625
626 set_filelen_write_cache(fsp, len);
627
628 ret = 0;
629 out:
630 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_FILL_SPARSE);
631 return ret;
632 }
633
634 /****************************************************************************
635 Transfer some data (n bytes) between two file_struct's.
636 ****************************************************************************/
637
638 static ssize_t vfs_read_fn(void *file, void *buf, size_t len)
639 {
640 struct files_struct *fsp = (struct files_struct *)file;
641
642 return SMB_VFS_READ(fsp, buf, len);
643 }
644
645 static ssize_t vfs_write_fn(void *file, const void *buf, size_t len)
646 {
647 struct files_struct *fsp = (struct files_struct *)file;
648
649 return SMB_VFS_WRITE(fsp, buf, len);
650 }
651
652 SMB_OFF_T vfs_transfer_file(files_struct *in, files_struct *out, SMB_OFF_T n)
653 {
654 return transfer_file_internal((void *)in, (void *)out, n,
655 vfs_read_fn, vfs_write_fn);
656 }
657
658 /*******************************************************************
659 A vfs_readdir wrapper which just returns the file name.
660 ********************************************************************/
661
662 const char *vfs_readdirname(connection_struct *conn, void *p,
663 SMB_STRUCT_STAT *sbuf, char **talloced)
664 {
665 SMB_STRUCT_DIRENT *ptr= NULL;
666 const char *dname;
667 char *translated;
668 NTSTATUS status;
669
670 if (!p)
671 return(NULL);
672
673 ptr = SMB_VFS_READDIR(conn, (DIR *)p, sbuf);
674 if (!ptr)
675 return(NULL);
676
677 dname = ptr->d_name;
678
679
680 #ifdef NEXT2
681 if (telldir(p) < 0)
682 return(NULL);
683 #endif
684
685 #ifdef HAVE_BROKEN_READDIR_NAME
686 /* using /usr/ucb/cc is BAD */
687 dname = dname - 2;
688 #endif
689
690 status = SMB_VFS_TRANSLATE_NAME(conn, dname, vfs_translate_to_windows,
691 talloc_tos(), &translated);
692 if (NT_STATUS_EQUAL(status, NT_STATUS_NONE_MAPPED)) {
693 *talloced = NULL;
694 return dname;
695 }
696 *talloced = translated;
697 if (!NT_STATUS_IS_OK(status)) {
698 return NULL;
699 }
700 return translated;
701 }
702
703 /*******************************************************************
704 A wrapper for vfs_chdir().
705 ********************************************************************/
706
707 int vfs_ChDir(connection_struct *conn, const char *path)
708 {
709 return SMB_VFS_CHDIR(conn,path);
710 }
711
712 /*******************************************************************
713 Return the absolute current directory path - given a UNIX pathname.
714 Note that this path is returned in DOS format, not UNIX
715 format. Note this can be called with conn == NULL.
716 ********************************************************************/
717
718 char *vfs_GetWd(TALLOC_CTX *ctx, connection_struct *conn)
719 {
720 char s[PATH_MAX+1];
721 char *result = NULL;
722 DATA_BLOB cache_value;
723 struct file_id key;
724 struct smb_filename *smb_fname_dot = NULL;
725 struct smb_filename *smb_fname_full = NULL;
726 NTSTATUS status;
727
728 *s = 0;
729
730 if (!lp_getwd_cache()) {
731 goto nocache;
732 }
733
734 status = create_synthetic_smb_fname(ctx, ".", NULL, NULL,
735 &smb_fname_dot);
736 if (!NT_STATUS_IS_OK(status)) {
737 errno = map_errno_from_nt_status(status);
738 goto out;
739 }
740
741 if (SMB_VFS_STAT(conn, smb_fname_dot) == -1) {
742 /*
743 * Known to fail for root: the directory may be NFS-mounted
744 * and exported with root_squash (so has no root access).
745 */
746 DEBUG(1,("vfs_GetWd: couldn't stat \".\" error %s "
747 "(NFS problem ?)\n", strerror(errno) ));
748 goto nocache;
749 }
750
751 key = vfs_file_id_from_sbuf(conn, &smb_fname_dot->st);
752
753 if (!memcache_lookup(smbd_memcache(), GETWD_CACHE,
754 data_blob_const(&key, sizeof(key)),
755 &cache_value)) {
756 goto nocache;
757 }
758
759 SMB_ASSERT((cache_value.length > 0)
760 && (cache_value.data[cache_value.length-1] == '\0'));
761
762 status = create_synthetic_smb_fname(ctx, (char *)cache_value.data,
763 NULL, NULL, &smb_fname_full);
764 if (!NT_STATUS_IS_OK(status)) {
765 errno = map_errno_from_nt_status(status);
766 goto out;
767 }
768
769 if ((SMB_VFS_STAT(conn, smb_fname_full) == 0) &&
770 (smb_fname_dot->st.st_ex_dev == smb_fname_full->st.st_ex_dev) &&
771 (smb_fname_dot->st.st_ex_ino == smb_fname_full->st.st_ex_ino) &&
772 (S_ISDIR(smb_fname_dot->st.st_ex_mode))) {
773 /*
774 * Ok, we're done
775 */
776 result = talloc_strdup(ctx, smb_fname_full->base_name);
777 if (result == NULL) {
778 errno = ENOMEM;
779 }
780 goto out;
781 }
782
783 nocache:
784
785 /*
786 * We don't have the information to hand so rely on traditional
787 * methods. The very slow getcwd, which spawns a process on some
788 * systems, or the not quite so bad getwd.
789 */
790
791 if (!SMB_VFS_GETWD(conn,s)) {
792 DEBUG(0, ("vfs_GetWd: SMB_VFS_GETWD call failed: %s\n",
793 strerror(errno)));
794 goto out;
795 }
796
797 if (lp_getwd_cache() && VALID_STAT(smb_fname_dot->st)) {
798 key = vfs_file_id_from_sbuf(conn, &smb_fname_dot->st);
799
800 memcache_add(smbd_memcache(), GETWD_CACHE,
801 data_blob_const(&key, sizeof(key)),
802 data_blob_const(s, strlen(s)+1));
803 }
804
805 result = talloc_strdup(ctx, s);
806 if (result == NULL) {
807 errno = ENOMEM;
808 }
809
810 out:
811 TALLOC_FREE(smb_fname_dot);
812 TALLOC_FREE(smb_fname_full);
813 return result;
814 }
815
816 /*******************************************************************
817 Reduce a file name, removing .. elements and checking that
818 it is below dir in the heirachy. This uses realpath.
819 ********************************************************************/
820
821 NTSTATUS check_reduced_name(connection_struct *conn, const char *fname)
822 {
823 #ifdef REALPATH_TAKES_NULL
824 bool free_resolved_name = True;
825 #else
826 char resolved_name_buf[PATH_MAX+1];
827 bool free_resolved_name = False;
828 #endif
829 char *resolved_name = NULL;
830 char *p = NULL;
831
832 DEBUG(3,("check_reduced_name [%s] [%s]\n", fname, conn->connectpath));
833
834 #ifdef REALPATH_TAKES_NULL
835 resolved_name = SMB_VFS_REALPATH(conn,fname,NULL);
836 #else
837 resolved_name = SMB_VFS_REALPATH(conn,fname,resolved_name_buf);
838 #endif
839
840 if (!resolved_name) {
841 switch (errno) {
842 case ENOTDIR:
843 DEBUG(3,("check_reduced_name: Component not a "
844 "directory in getting realpath for "
845 "%s\n", fname));
846 return NT_STATUS_OBJECT_PATH_NOT_FOUND;
847 case ENOENT:
848 {
849 TALLOC_CTX *ctx = talloc_tos();
850 char *tmp_fname = NULL;
851 char *last_component = NULL;
852 /* Last component didn't exist. Remove it and try and canonicalise the directory. */
853
854 tmp_fname = talloc_strdup(ctx, fname);
855 if (!tmp_fname) {
856 return NT_STATUS_NO_MEMORY;
857 }
858 p = strrchr_m(tmp_fname, '/');
859 if (p) {
860 *p++ = '\0';
861 last_component = p;
862 } else {
863 last_component = tmp_fname;
864 tmp_fname = talloc_strdup(ctx,
865 ".");
866 if (!tmp_fname) {
867 return NT_STATUS_NO_MEMORY;
868 }
869 }
870
871 #ifdef REALPATH_TAKES_NULL
872 resolved_name = SMB_VFS_REALPATH(conn,tmp_fname,NULL);
873 #else
874 resolved_name = SMB_VFS_REALPATH(conn,tmp_fname,resolved_name_buf);
875 #endif
876 if (!resolved_name) {
877 NTSTATUS status = map_nt_error_from_unix(errno);
878
879 if (errno == ENOENT || errno == ENOTDIR) {
880 status = NT_STATUS_OBJECT_PATH_NOT_FOUND;
881 }
882
883 DEBUG(3,("check_reduce_named: "
884 "couldn't get realpath for "
885 "%s (%s)\n",
886 fname,
887 nt_errstr(status)));
888 return status;
889 }
890 tmp_fname = talloc_asprintf(ctx,
891 "%s/%s",
892 resolved_name,
893 last_component);
894 if (!tmp_fname) {
895 return NT_STATUS_NO_MEMORY;
896 }
897 #ifdef REALPATH_TAKES_NULL
898 SAFE_FREE(resolved_name);
899 resolved_name = SMB_STRDUP(tmp_fname);
900 if (!resolved_name) {
901 DEBUG(0, ("check_reduced_name: malloc "
902 "fail for %s\n", tmp_fname));
903 return NT_STATUS_NO_MEMORY;
904 }
905 #else
906 safe_strcpy(resolved_name_buf, tmp_fname, PATH_MAX);
907 resolved_name = resolved_name_buf;
908 #endif
909 break;
910 }
911 default:
912 DEBUG(1,("check_reduced_name: couldn't get "
913 "realpath for %s\n", fname));
914 return map_nt_error_from_unix(errno);
915 }
916 }
917
918 DEBUG(10,("check_reduced_name realpath [%s] -> [%s]\n", fname,
919 resolved_name));
920
921 if (*resolved_name != '/') {
922 DEBUG(0,("check_reduced_name: realpath doesn't return "
923 "absolute paths !\n"));
924 if (free_resolved_name) {
925 SAFE_FREE(resolved_name);
926 }
927 return NT_STATUS_OBJECT_NAME_INVALID;
928 }
929
930 /* Check for widelinks allowed. */
931 if (!lp_widelinks(SNUM(conn))) {
932 const char *conn_rootdir;
933
934 conn_rootdir = SMB_VFS_CONNECTPATH(conn, fname);
935 if (conn_rootdir == NULL) {
936 DEBUG(2, ("check_reduced_name: Could not get "
937 "conn_rootdir\n"));
938 if (free_resolved_name) {
939 SAFE_FREE(resolved_name);
940 }
941 return NT_STATUS_ACCESS_DENIED;
942 }
943
944 if (strncmp(conn_rootdir, resolved_name,
945 strlen(conn_rootdir)) != 0) {
946 DEBUG(2, ("check_reduced_name: Bad access "
947 "attempt: %s is a symlink outside the "
948 "share path\n", fname));
949 if (free_resolved_name) {
950 SAFE_FREE(resolved_name);
951 }
952 return NT_STATUS_ACCESS_DENIED;
953 }
954 }
955
956 /* Check if we are allowing users to follow symlinks */
957 /* Patch from David Clerc <David.Clerc@cui.unige.ch>
958 University of Geneva */
959
960 #ifdef S_ISLNK
961 if (!lp_symlinks(SNUM(conn))) {
962 struct smb_filename *smb_fname = NULL;
963 NTSTATUS status;
964
965 status = create_synthetic_smb_fname(talloc_tos(), fname, NULL,
966 NULL, &smb_fname);
967 if (!NT_STATUS_IS_OK(status)) {
968 if (free_resolved_name) {
969 SAFE_FREE(resolved_name);
970 }
971 return status;
972 }
973
974 if ( (SMB_VFS_LSTAT(conn, smb_fname) != -1) &&
975 (S_ISLNK(smb_fname->st.st_ex_mode)) ) {
976 if (free_resolved_name) {
977 SAFE_FREE(resolved_name);
978 }
979 DEBUG(3,("check_reduced_name: denied: file path name "
980 "%s is a symlink\n",resolved_name));
981 TALLOC_FREE(smb_fname);
982 return NT_STATUS_ACCESS_DENIED;
983 }
984 TALLOC_FREE(smb_fname);
985 }
986 #endif
987
988 DEBUG(3,("check_reduced_name: %s reduced to %s\n", fname,
989 resolved_name));
990 if (free_resolved_name) {
991 SAFE_FREE(resolved_name);
992 }
993 return NT_STATUS_OK;
994 }
995
996 /**
997 * XXX: This is temporary and there should be no callers of this once
998 * smb_filename is plumbed through all path based operations.
999 */
1000 int vfs_stat_smb_fname(struct connection_struct *conn, const char *fname,
1001 SMB_STRUCT_STAT *psbuf)
1002 {
1003 struct smb_filename *smb_fname = NULL;
1004 NTSTATUS status;
1005 int ret;
1006
1007 status = create_synthetic_smb_fname_split(talloc_tos(), fname, NULL,
1008 &smb_fname);
1009 if (!NT_STATUS_IS_OK(status)) {
1010 errno = map_errno_from_nt_status(status);
1011 return -1;
1012 }
1013
1014 if (lp_posix_pathnames()) {
1015 ret = SMB_VFS_LSTAT(conn, smb_fname);
1016 } else {
1017 ret = SMB_VFS_STAT(conn, smb_fname);
1018 }
1019
1020 if (ret != -1) {
1021 *psbuf = smb_fname->st;
1022 }
1023
1024 TALLOC_FREE(smb_fname);
1025 return ret;
1026 }
1027
1028 /**
1029 * XXX: This is temporary and there should be no callers of this once
1030 * smb_filename is plumbed through all path based operations.
1031 */
1032 int vfs_lstat_smb_fname(struct connection_struct *conn, const char *fname,
1033 SMB_STRUCT_STAT *psbuf)
1034 {
1035 struct smb_filename *smb_fname = NULL;
1036 NTSTATUS status;
1037 int ret;
1038
1039 status = create_synthetic_smb_fname_split(talloc_tos(), fname, NULL,
1040 &smb_fname);
1041 if (!NT_STATUS_IS_OK(status)) {
1042 errno = map_errno_from_nt_status(status);
1043 return -1;
1044 }
1045
1046 ret = SMB_VFS_LSTAT(conn, smb_fname);
1047 if (ret != -1) {
1048 *psbuf = smb_fname->st;
1049 }
1050
1051 TALLOC_FREE(smb_fname);
1052 return ret;
1053 }
1054
1055 /**
1056 * Ensure LSTAT is called for POSIX paths.
1057 */
1058
1059 NTSTATUS vfs_stat_fsp(files_struct *fsp)
1060 {
1061 int ret;
1062
1063 if(fsp->is_directory || fsp->fh->fd == -1) {
1064 if (fsp->posix_open) {
1065 ret = SMB_VFS_LSTAT(fsp->conn, fsp->fsp_name);
1066 } else {
1067 ret = SMB_VFS_STAT(fsp->conn, fsp->fsp_name);
1068 }
1069 if (ret == -1) {
1070 return map_nt_error_from_unix(errno);
1071 }
1072 } else {
1073 if(SMB_VFS_FSTAT(fsp, &fsp->fsp_name->st) != 0) {
1074 return map_nt_error_from_unix(errno);
1075 }
1076 }
1077 return NT_STATUS_OK;
1078 }
1079
1080 /*
1081 generate a file_id from a stat structure
1082 */
1083 struct file_id vfs_file_id_from_sbuf(connection_struct *conn, const SMB_STRUCT_STAT *sbuf)
1084 {
1085 return SMB_VFS_FILE_ID_CREATE(conn, sbuf);
1086 }
1087
1088 int smb_vfs_call_connect(struct vfs_handle_struct *handle,
1089 const char *service, const char *user)
1090 {
1091 VFS_FIND(connect_fn);
1092 return handle->fns->connect_fn(handle, service, user);
1093 }
1094
1095 void smb_vfs_call_disconnect(struct vfs_handle_struct *handle)
1096 {
1097 VFS_FIND(disconnect);
1098 handle->fns->disconnect(handle);
1099 }
1100
1101 uint64_t smb_vfs_call_disk_free(struct vfs_handle_struct *handle,
1102 const char *path, bool small_query,
1103 uint64_t *bsize, uint64_t *dfree,
1104 uint64_t *dsize)
1105 {
1106 VFS_FIND(disk_free);
1107 return handle->fns->disk_free(handle, path, small_query, bsize, dfree,
1108 dsize);
1109 }
1110
1111 int smb_vfs_call_get_quota(struct vfs_handle_struct *handle,
1112 enum SMB_QUOTA_TYPE qtype, unid_t id,
1113 SMB_DISK_QUOTA *qt)
1114 {
1115 VFS_FIND(get_quota);
1116 return handle->fns->get_quota(handle, qtype, id, qt);
1117 }
1118
1119 int smb_vfs_call_set_quota(struct vfs_handle_struct *handle,
1120 enum SMB_QUOTA_TYPE qtype, unid_t id,
1121 SMB_DISK_QUOTA *qt)
1122 {
1123 VFS_FIND(set_quota);
1124 return handle->fns->set_quota(handle, qtype, id, qt);
1125 }
1126
1127 int smb_vfs_call_get_shadow_copy_data(struct vfs_handle_struct *handle,
1128 struct files_struct *fsp,
1129 SHADOW_COPY_DATA *shadow_copy_data,
1130 bool labels)
1131 {
1132 VFS_FIND(get_shadow_copy_data);
1133 return handle->fns->get_shadow_copy_data(handle, fsp, shadow_copy_data,
1134 labels);
1135 }
1136 int smb_vfs_call_statvfs(struct vfs_handle_struct *handle, const char *path,
1137 struct vfs_statvfs_struct *statbuf)
1138 {
1139 VFS_FIND(statvfs);
1140 return handle->fns->statvfs(handle, path, statbuf);
1141 }
1142
1143 uint32_t smb_vfs_call_fs_capabilities(struct vfs_handle_struct *handle,
1144 enum timestamp_set_resolution *p_ts_res)
1145 {
1146 VFS_FIND(fs_capabilities);
1147 return handle->fns->fs_capabilities(handle, p_ts_res);
1148 }
1149
1150 SMB_STRUCT_DIR *smb_vfs_call_opendir(struct vfs_handle_struct *handle,
1151 const char *fname, const char *mask,
1152 uint32 attributes)
1153 {
1154 VFS_FIND(opendir);
1155 return handle->fns->opendir(handle, fname, mask, attributes);
1156 }
1157
1158 SMB_STRUCT_DIRENT *smb_vfs_call_readdir(struct vfs_handle_struct *handle,
1159 SMB_STRUCT_DIR *dirp,
1160 SMB_STRUCT_STAT *sbuf)
1161 {
1162 VFS_FIND(readdir);
1163 return handle->fns->readdir(handle, dirp, sbuf);
1164 }
1165
1166 void smb_vfs_call_seekdir(struct vfs_handle_struct *handle,
1167 SMB_STRUCT_DIR *dirp, long offset)
1168 {
1169 VFS_FIND(seekdir);
1170 handle->fns->seekdir(handle, dirp, offset);
1171 }
1172
1173 long smb_vfs_call_telldir(struct vfs_handle_struct *handle,
1174 SMB_STRUCT_DIR *dirp)
1175 {
1176 VFS_FIND(telldir);
1177 return handle->fns->telldir(handle, dirp);
1178 }
1179
1180 void smb_vfs_call_rewind_dir(struct vfs_handle_struct *handle,
1181 SMB_STRUCT_DIR *dirp)
1182 {
1183 VFS_FIND(rewind_dir);
1184 handle->fns->rewind_dir(handle, dirp);
1185 }
1186
1187 int smb_vfs_call_mkdir(struct vfs_handle_struct *handle, const char *path,
1188 mode_t mode)
1189 {
1190 VFS_FIND(mkdir);
1191 return handle->fns->mkdir(handle, path, mode);
1192 }
1193
1194 int smb_vfs_call_rmdir(struct vfs_handle_struct *handle, const char *path)
1195 {
1196 VFS_FIND(rmdir);
1197 return handle->fns->rmdir(handle, path);
1198 }
1199
1200 int smb_vfs_call_closedir(struct vfs_handle_struct *handle,
1201 SMB_STRUCT_DIR *dir)
1202 {
1203 VFS_FIND(closedir);
1204 return handle->fns->closedir(handle, dir);
1205 }
1206
1207 void smb_vfs_call_init_search_op(struct vfs_handle_struct *handle,
1208 SMB_STRUCT_DIR *dirp)
1209 {
1210 VFS_FIND(init_search_op);
1211 handle->fns->init_search_op(handle, dirp);
1212 }
1213
1214 int smb_vfs_call_open(struct vfs_handle_struct *handle,
1215 struct smb_filename *smb_fname, struct files_struct *fsp,
1216 int flags, mode_t mode)
1217 {
1218 VFS_FIND(open);
1219 return handle->fns->open(handle, smb_fname, fsp, flags, mode);
1220 }
1221
1222 NTSTATUS smb_vfs_call_create_file(struct vfs_handle_struct *handle,
1223 struct smb_request *req,
1224 uint16_t root_dir_fid,
1225 struct smb_filename *smb_fname,
1226 uint32_t access_mask,
1227 uint32_t share_access,
1228 uint32_t create_disposition,
1229 uint32_t create_options,
1230 uint32_t file_attributes,
1231 uint32_t oplock_request,
1232 uint64_t allocation_size,
1233 struct security_descriptor *sd,
1234 struct ea_list *ea_list,
1235 files_struct **result,
1236 int *pinfo)
1237 {
1238 VFS_FIND(create_file);
1239 return handle->fns->create_file(
1240 handle, req, root_dir_fid, smb_fname, access_mask,
1241 share_access, create_disposition, create_options,
1242 file_attributes, oplock_request, allocation_size, sd, ea_list,
1243 result, pinfo);
1244 }
1245
1246 int smb_vfs_call_close_fn(struct vfs_handle_struct *handle,
1247 struct files_struct *fsp)
1248 {
1249 VFS_FIND(close_fn);
1250 return handle->fns->close_fn(handle, fsp);
1251 }
1252
1253 ssize_t smb_vfs_call_vfs_read(struct vfs_handle_struct *handle,
1254 struct files_struct *fsp, void *data, size_t n)
1255 {
1256 VFS_FIND(vfs_read);
1257 return handle->fns->vfs_read(handle, fsp, data, n);
1258 }
1259
1260 ssize_t smb_vfs_call_pread(struct vfs_handle_struct *handle,
1261 struct files_struct *fsp, void *data, size_t n,
1262 SMB_OFF_T offset)
1263 {
1264 VFS_FIND(pread);
1265 return handle->fns->pread(handle, fsp, data, n, offset);
1266 }
1267
1268 ssize_t smb_vfs_call_write(struct vfs_handle_struct *handle,
1269 struct files_struct *fsp, const void *data,
1270 size_t n)
1271 {
1272 VFS_FIND(write);
1273 return handle->fns->write(handle, fsp, data, n);
1274 }
1275
1276 ssize_t smb_vfs_call_pwrite(struct vfs_handle_struct *handle,
1277 struct files_struct *fsp, const void *data,
1278 size_t n, SMB_OFF_T offset)
1279 {
1280 VFS_FIND(pwrite);
1281 return handle->fns->pwrite(handle, fsp, data, n, offset);
1282 }
1283
1284 SMB_OFF_T smb_vfs_call_lseek(struct vfs_handle_struct *handle,
1285 struct files_struct *fsp, SMB_OFF_T offset,
1286 int whence)
1287 {
1288 VFS_FIND(lseek);
1289 return handle->fns->lseek(handle, fsp, offset, whence);
1290 }
1291
1292 ssize_t smb_vfs_call_sendfile(struct vfs_handle_struct *handle, int tofd,
1293 files_struct *fromfsp, const DATA_BLOB *header,
1294 SMB_OFF_T offset, size_t count)
1295 {
1296 VFS_FIND(sendfile);
1297 return handle->fns->sendfile(handle, tofd, fromfsp, header, offset,
1298 count);
1299 }
1300
1301 ssize_t smb_vfs_call_recvfile(struct vfs_handle_struct *handle, int fromfd,
1302 files_struct *tofsp, SMB_OFF_T offset,
1303 size_t count)
1304 {
1305 VFS_FIND(recvfile);
1306 return handle->fns->recvfile(handle, fromfd, tofsp, offset, count);
1307 }
1308
1309 int smb_vfs_call_rename(struct vfs_handle_struct *handle,
1310 const struct smb_filename *smb_fname_src,
1311 const struct smb_filename *smb_fname_dst)
1312 {
1313 VFS_FIND(rename);
1314 return handle->fns->rename(handle, smb_fname_src, smb_fname_dst);
1315 }
1316
1317 int smb_vfs_call_fsync(struct vfs_handle_struct *handle,
1318 struct files_struct *fsp)
1319 {
1320 VFS_FIND(fsync);
1321 return handle->fns->fsync(handle, fsp);
1322 }
1323
1324 int smb_vfs_call_stat(struct vfs_handle_struct *handle,
1325 struct smb_filename *smb_fname)
1326 {
1327 VFS_FIND(stat);
1328 return handle->fns->stat(handle, smb_fname);
1329 }
1330
1331 int smb_vfs_call_fstat(struct vfs_handle_struct *handle,
1332 struct files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1333 {
1334 VFS_FIND(fstat);
1335 return handle->fns->fstat(handle, fsp, sbuf);
1336 }
1337
1338 int smb_vfs_call_lstat(struct vfs_handle_struct *handle,
1339 struct smb_filename *smb_filename)
1340 {
1341 VFS_FIND(lstat);
1342 return handle->fns->lstat(handle, smb_filename);
1343 }
1344
1345 uint64_t smb_vfs_call_get_alloc_size(struct vfs_handle_struct *handle,
1346 struct files_struct *fsp,
1347 const SMB_STRUCT_STAT *sbuf)
1348 {
1349 VFS_FIND(get_alloc_size);
1350 return handle->fns->get_alloc_size(handle, fsp, sbuf);
1351 }
1352
1353 int smb_vfs_call_unlink(struct vfs_handle_struct *handle,
1354 const struct smb_filename *smb_fname)
1355 {
1356 VFS_FIND(unlink);
1357 return handle->fns->unlink(handle, smb_fname);
1358 }
1359
1360 int smb_vfs_call_chmod(struct vfs_handle_struct *handle, const char *path,
1361 mode_t mode)
1362 {
1363 VFS_FIND(chmod);
1364 return handle->fns->chmod(handle, path, mode);
1365 }
1366
1367 int smb_vfs_call_fchmod(struct vfs_handle_struct *handle,
1368 struct files_struct *fsp, mode_t mode)
1369 {
1370 VFS_FIND(fchmod);
1371 return handle->fns->fchmod(handle, fsp, mode);
1372 }
1373
1374 int smb_vfs_call_chown(struct vfs_handle_struct *handle, const char *path,
1375 uid_t uid, gid_t gid)
1376 {
1377 VFS_FIND(chown);
1378 return handle->fns->chown(handle, path, uid, gid);
1379 }
1380
1381 int smb_vfs_call_fchown(struct vfs_handle_struct *handle,
1382 struct files_struct *fsp, uid_t uid, gid_t gid)
1383 {
1384 VFS_FIND(fchown);
1385 return handle->fns->fchown(handle, fsp, uid, gid);
1386 }
1387
1388 int smb_vfs_call_lchown(struct vfs_handle_struct *handle, const char *path,
1389 uid_t uid, gid_t gid)
1390 {
1391 VFS_FIND(lchown);
1392 return handle->fns->lchown(handle, path, uid, gid);
1393 }
1394
1395 int smb_vfs_call_chdir(struct vfs_handle_struct *handle, const char *path)
1396 {
1397 VFS_FIND(chdir);
1398 return handle->fns->chdir(handle, path);
1399 }
1400
1401 char *smb_vfs_call_getwd(struct vfs_handle_struct *handle, char *buf)
1402 {
1403 VFS_FIND(getwd);
1404 return handle->fns->getwd(handle, buf);
1405 }
1406
1407 int smb_vfs_call_ntimes(struct vfs_handle_struct *handle,
1408 const struct smb_filename *smb_fname,
1409 struct smb_file_time *ft)
1410 {
1411 VFS_FIND(ntimes);
1412 return handle->fns->ntimes(handle, smb_fname, ft);
1413 }
1414
1415 int smb_vfs_call_ftruncate(struct vfs_handle_struct *handle,
1416 struct files_struct *fsp, SMB_OFF_T offset)
1417 {
1418 VFS_FIND(ftruncate);
1419 return handle->fns->ftruncate(handle, fsp, offset);
1420 }
1421
1422 int smb_vfs_call_kernel_flock(struct vfs_handle_struct *handle,
1423 struct files_struct *fsp, uint32 share_mode,
1424 uint32_t access_mask)
1425 {
1426 VFS_FIND(kernel_flock);
1427 return handle->fns->kernel_flock(handle, fsp, share_mode,
1428 access_mask);
1429 }
1430
1431 int smb_vfs_call_linux_setlease(struct vfs_handle_struct *handle,
1432 struct files_struct *fsp, int leasetype)
1433 {
1434 VFS_FIND(linux_setlease);
1435 return handle->fns->linux_setlease(handle, fsp, leasetype);
1436 }
1437
1438 int smb_vfs_call_symlink(struct vfs_handle_struct *handle, const char *oldpath,
1439 const char *newpath)
1440 {
1441 VFS_FIND(symlink);
1442 return handle->fns->symlink(handle, oldpath, newpath);
1443 }
1444
1445 int smb_vfs_call_vfs_readlink(struct vfs_handle_struct *handle,
1446 const char *path, char *buf, size_t bufsiz)
1447 {
1448 VFS_FIND(vfs_readlink);
1449 return handle->fns->vfs_readlink(handle, path, buf, bufsiz);
1450 }
1451
1452 int smb_vfs_call_link(struct vfs_handle_struct *handle, const char *oldpath,
1453 const char *newpath)
1454 {
1455 VFS_FIND(link);
1456 return handle->fns->link(handle, oldpath, newpath);
1457 }
1458
1459 int smb_vfs_call_mknod(struct vfs_handle_struct *handle, const char *path,
1460 mode_t mode, SMB_DEV_T dev)
1461 {
1462 VFS_FIND(mknod);
1463 return handle->fns->mknod(handle, path, mode, dev);
1464 }
1465
1466 char *smb_vfs_call_realpath(struct vfs_handle_struct *handle,
1467 const char *path, char *resolved_path)
1468 {
1469 VFS_FIND(realpath);
1470 return handle->fns->realpath(handle, path, resolved_path);
1471 }
1472
1473 NTSTATUS smb_vfs_call_notify_watch(struct vfs_handle_struct *handle,
1474 struct sys_notify_context *ctx,
1475 struct notify_entry *e,
1476 void (*callback)(struct sys_notify_context *ctx,
1477 void *private_data,
1478 struct notify_event *ev),
1479 void *private_data, void *handle_p)
1480 {
1481 VFS_FIND(notify_watch);
1482 return handle->fns->notify_watch(handle, ctx, e, callback,
1483 private_data, handle_p);
1484 }
1485
1486 int smb_vfs_call_chflags(struct vfs_handle_struct *handle, const char *path,
1487 unsigned int flags)
1488 {
1489 VFS_FIND(chflags);
1490 return handle->fns->chflags(handle, path, flags);
1491 }
1492
1493 struct file_id smb_vfs_call_file_id_create(struct vfs_handle_struct *handle,
1494 const SMB_STRUCT_STAT *sbuf)
1495 {
1496 VFS_FIND(file_id_create);
1497 return handle->fns->file_id_create(handle, sbuf);
1498 }
1499
1500 NTSTATUS smb_vfs_call_streaminfo(struct vfs_handle_struct *handle,
1501 struct files_struct *fsp,
1502 const char *fname,
1503 TALLOC_CTX *mem_ctx,
1504 unsigned int *num_streams,
1505 struct stream_struct **streams)
1506 {
1507 VFS_FIND(streaminfo);
1508 return handle->fns->streaminfo(handle, fsp, fname, mem_ctx,
1509 num_streams, streams);
1510 }
1511
1512 int smb_vfs_call_get_real_filename(struct vfs_handle_struct *handle,
1513 const char *path, const char *name,
1514 TALLOC_CTX *mem_ctx, char **found_name)
1515 {
1516 VFS_FIND(get_real_filename);
1517 return handle->fns->get_real_filename(handle, path, name, mem_ctx,
1518 found_name);
1519 }
1520
1521 const char *smb_vfs_call_connectpath(struct vfs_handle_struct *handle,
1522 const char *filename)
1523 {
1524 VFS_FIND(connectpath);
1525 return handle->fns->connectpath(handle, filename);
1526 }
1527
1528 bool smb_vfs_call_strict_lock(struct vfs_handle_struct *handle,
1529 struct files_struct *fsp,
1530 struct lock_struct *plock)
1531 {
1532 VFS_FIND(strict_lock);
1533 return handle->fns->strict_lock(handle, fsp, plock);
1534 }
1535
1536 void smb_vfs_call_strict_unlock(struct vfs_handle_struct *handle,
1537 struct files_struct *fsp,
1538 struct lock_struct *plock)
1539 {
1540 VFS_FIND(strict_unlock);
1541 handle->fns->strict_unlock(handle, fsp, plock);
1542 }
1543
1544 NTSTATUS smb_vfs_call_translate_name(struct vfs_handle_struct *handle,
1545 const char *name,
1546 enum vfs_translate_direction direction,
1547 TALLOC_CTX *mem_ctx,
1548 char **mapped_name)
1549 {
1550 VFS_FIND(translate_name);
1551 return handle->fns->translate_name(handle, name, direction, mem_ctx,
1552 mapped_name);
1553 }
1554
1555 NTSTATUS smb_vfs_call_fget_nt_acl(struct vfs_handle_struct *handle,
1556 struct files_struct *fsp,
1557 uint32 security_info,
1558 struct security_descriptor **ppdesc)
1559 {
1560 VFS_FIND(fget_nt_acl);
1561 return handle->fns->fget_nt_acl(handle, fsp, security_info,
1562 ppdesc);
1563 }
1564
1565 NTSTATUS smb_vfs_call_get_nt_acl(struct vfs_handle_struct *handle,
1566 const char *name,
1567 uint32 security_info,
1568 struct security_descriptor **ppdesc)
1569 {
1570 VFS_FIND(get_nt_acl);
1571 return handle->fns->get_nt_acl(handle, name, security_info, ppdesc);
1572 }
1573
1574 NTSTATUS smb_vfs_call_fset_nt_acl(struct vfs_handle_struct *handle,
1575 struct files_struct *fsp,
1576 uint32 security_info_sent,
1577 const struct security_descriptor *psd)
1578 {
1579 VFS_FIND(fset_nt_acl);
1580 return handle->fns->fset_nt_acl(handle, fsp, security_info_sent, psd);
1581 }
1582
1583 int smb_vfs_call_chmod_acl(struct vfs_handle_struct *handle, const char *name,
1584 mode_t mode)
1585 {
1586 VFS_FIND(chmod_acl);
1587 return handle->fns->chmod_acl(handle, name, mode);
1588 }
1589
1590 int smb_vfs_call_fchmod_acl(struct vfs_handle_struct *handle,
1591 struct files_struct *fsp, mode_t mode)
1592 {
1593 VFS_FIND(fchmod_acl);
1594 return handle->fns->fchmod_acl(handle, fsp, mode);
1595 }
1596
1597 int smb_vfs_call_sys_acl_get_entry(struct vfs_handle_struct *handle,
1598 SMB_ACL_T theacl, int entry_id,
1599 SMB_ACL_ENTRY_T *entry_p)
1600 {
1601 VFS_FIND(sys_acl_get_entry);
1602 return handle->fns->sys_acl_get_entry(handle, theacl, entry_id,
1603 entry_p);
1604 }
1605
1606 int smb_vfs_call_sys_acl_get_tag_type(struct vfs_handle_struct *handle,
1607 SMB_ACL_ENTRY_T entry_d,
1608 SMB_ACL_TAG_T *tag_type_p)
1609 {
1610 VFS_FIND(sys_acl_get_tag_type);
1611 return handle->fns->sys_acl_get_tag_type(handle, entry_d, tag_type_p);
1612 }
1613
1614 int smb_vfs_call_sys_acl_get_permset(struct vfs_handle_struct *handle,
1615 SMB_ACL_ENTRY_T entry_d,
1616 SMB_ACL_PERMSET_T *permset_p)
1617 {
1618 VFS_FIND(sys_acl_get_permset);
1619 return handle->fns->sys_acl_get_permset(handle, entry_d, permset_p);
1620 }
1621
1622 void * smb_vfs_call_sys_acl_get_qualifier(struct vfs_handle_struct *handle,
1623 SMB_ACL_ENTRY_T entry_d)
1624 {
1625 VFS_FIND(sys_acl_get_qualifier);
1626 return handle->fns->sys_acl_get_qualifier(handle, entry_d);
1627 }
1628
1629 SMB_ACL_T smb_vfs_call_sys_acl_get_file(struct vfs_handle_struct *handle,
1630 const char *path_p,
1631 SMB_ACL_TYPE_T type)
1632 {
1633 VFS_FIND(sys_acl_get_file);
1634 return handle->fns->sys_acl_get_file(handle, path_p, type);
1635 }
1636
1637 SMB_ACL_T smb_vfs_call_sys_acl_get_fd(struct vfs_handle_struct *handle,
1638 struct files_struct *fsp)
1639 {
1640 VFS_FIND(sys_acl_get_fd);
1641 return handle->fns->sys_acl_get_fd(handle, fsp);
1642 }
1643
1644 int smb_vfs_call_sys_acl_clear_perms(struct vfs_handle_struct *handle,
1645 SMB_ACL_PERMSET_T permset)
1646 {
1647 VFS_FIND(sys_acl_clear_perms);
1648 return handle->fns->sys_acl_clear_perms(handle, permset);
1649 }
1650
1651 int smb_vfs_call_sys_acl_add_perm(struct vfs_handle_struct *handle,
1652 SMB_ACL_PERMSET_T permset,
1653 SMB_ACL_PERM_T perm)
1654 {
1655 VFS_FIND(sys_acl_add_perm);
1656 return handle->fns->sys_acl_add_perm(handle, permset, perm);
1657 }
1658
1659 char * smb_vfs_call_sys_acl_to_text(struct vfs_handle_struct *handle,
1660 SMB_ACL_T theacl, ssize_t *plen)
1661 {
1662 VFS_FIND(sys_acl_to_text);
1663 return handle->fns->sys_acl_to_text(handle, theacl, plen);
1664 }
1665
1666 SMB_ACL_T smb_vfs_call_sys_acl_init(struct vfs_handle_struct *handle,
1667 int count)
1668 {
1669 VFS_FIND(sys_acl_init);
1670 return handle->fns->sys_acl_init(handle, count);
1671 }
1672
1673 int smb_vfs_call_sys_acl_create_entry(struct vfs_handle_struct *handle,
1674 SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry)
1675 {
1676 VFS_FIND(sys_acl_create_entry);
1677 return handle->fns->sys_acl_create_entry(handle, pacl, pentry);
1678 }
1679
1680 int smb_vfs_call_sys_acl_set_tag_type(struct vfs_handle_struct *handle,
1681 SMB_ACL_ENTRY_T entry,
1682 SMB_ACL_TAG_T tagtype)
1683 {
1684 VFS_FIND(sys_acl_set_tag_type);
1685 return handle->fns->sys_acl_set_tag_type(handle, entry, tagtype);
1686 }
1687
1688 int smb_vfs_call_sys_acl_set_qualifier(struct vfs_handle_struct *handle,
1689 SMB_ACL_ENTRY_T entry, void *qual)
1690 {
1691 VFS_FIND(sys_acl_set_qualifier);
1692 return handle->fns->sys_acl_set_qualifier(handle, entry, qual);
1693 }
1694
1695 int smb_vfs_call_sys_acl_set_permset(struct vfs_handle_struct *handle,
1696 SMB_ACL_ENTRY_T entry,
1697 SMB_ACL_PERMSET_T permset)
1698 {
1699 VFS_FIND(sys_acl_set_permset);
1700 return handle->fns->sys_acl_set_permset(handle, entry, permset);
1701 }
1702
1703 int smb_vfs_call_sys_acl_valid(struct vfs_handle_struct *handle,
1704 SMB_ACL_T theacl)
1705 {
1706 VFS_FIND(sys_acl_valid);
1707 return handle->fns->sys_acl_valid(handle, theacl);
1708 }
1709
1710 int smb_vfs_call_sys_acl_set_file(struct vfs_handle_struct *handle,
1711 const char *name, SMB_ACL_TYPE_T acltype,
1712 SMB_ACL_T theacl)
1713 {
1714 VFS_FIND(sys_acl_set_file);
1715 return handle->fns->sys_acl_set_file(handle, name, acltype, theacl);
1716 }
1717
1718 int smb_vfs_call_sys_acl_set_fd(struct vfs_handle_struct *handle,
1719 struct files_struct *fsp, SMB_ACL_T theacl)
1720 {
1721 VFS_FIND(sys_acl_set_fd);
1722 return handle->fns->sys_acl_set_fd(handle, fsp, theacl);
1723 }
1724
1725 int smb_vfs_call_sys_acl_delete_def_file(struct vfs_handle_struct *handle,
1726 const char *path)
1727 {
1728 VFS_FIND(sys_acl_delete_def_file);
1729 return handle->fns->sys_acl_delete_def_file(handle, path);
1730 }
1731
1732 int smb_vfs_call_sys_acl_get_perm(struct vfs_handle_struct *handle,
1733 SMB_ACL_PERMSET_T permset,
1734 SMB_ACL_PERM_T perm)
1735 {
1736 VFS_FIND(sys_acl_get_perm);
1737 return handle->fns->sys_acl_get_perm(handle, permset, perm);
1738 }
1739
1740 int smb_vfs_call_sys_acl_free_text(struct vfs_handle_struct *handle,
1741 char *text)
1742 {
1743 VFS_FIND(sys_acl_free_text);
1744 return handle->fns->sys_acl_free_text(handle, text);
1745 }
1746
1747 int smb_vfs_call_sys_acl_free_acl(struct vfs_handle_struct *handle,
1748 SMB_ACL_T posix_acl)
1749 {
1750 VFS_FIND(sys_acl_free_acl);
1751 return handle->fns->sys_acl_free_acl(handle, posix_acl);
1752 }
1753
1754 int smb_vfs_call_sys_acl_free_qualifier(struct vfs_handle_struct *handle,
1755 void *qualifier, SMB_ACL_TAG_T tagtype)
1756 {
1757 VFS_FIND(sys_acl_free_qualifier);
1758 return handle->fns->sys_acl_free_qualifier(handle, qualifier, tagtype);
1759 }
1760
1761 ssize_t smb_vfs_call_getxattr(struct vfs_handle_struct *handle,
1762 const char *path, const char *name, void *value,
1763 size_t size)
1764 {
1765 VFS_FIND(getxattr);
1766 return handle->fns->getxattr(handle, path, name, value, size);
1767 }
1768
1769 ssize_t smb_vfs_call_lgetxattr(struct vfs_handle_struct *handle,
1770 const char *path, const char *name, void *value,
1771 size_t size)
1772 {
1773 VFS_FIND(lgetxattr);
1774 return handle->fns->lgetxattr(handle, path, name, value, size);
1775 }
1776
1777 ssize_t smb_vfs_call_fgetxattr(struct vfs_handle_struct *handle,
1778 struct files_struct *fsp, const char *name,
1779 void *value, size_t size)
1780 {
1781 VFS_FIND(fgetxattr);
1782 return handle->fns->fgetxattr(handle, fsp, name, value, size);
1783 }
1784
1785 ssize_t smb_vfs_call_listxattr(struct vfs_handle_struct *handle,
1786 const char *path, char *list, size_t size)
1787 {
1788 VFS_FIND(listxattr);
1789 return handle->fns->listxattr(handle, path, list, size);
1790 }
1791
1792 ssize_t smb_vfs_call_llistxattr(struct vfs_handle_struct *handle,
1793 const char *path, char *list, size_t size)
1794 {
1795 VFS_FIND(llistxattr);
1796 return handle->fns->llistxattr(handle, path, list, size);
1797 }
1798
1799 ssize_t smb_vfs_call_flistxattr(struct vfs_handle_struct *handle,
1800 struct files_struct *fsp, char *list,
1801 size_t size)
1802 {
1803 VFS_FIND(flistxattr);
1804 return handle->fns->flistxattr(handle, fsp, list, size);
1805 }
1806
1807 int smb_vfs_call_removexattr(struct vfs_handle_struct *handle,
1808 const char *path, const char *name)
1809 {
1810 VFS_FIND(removexattr);
1811 return handle->fns->removexattr(handle, path, name);
1812 }
1813
1814 int smb_vfs_call_lremovexattr(struct vfs_handle_struct *handle,
1815 const char *path, const char *name)
1816 {
1817 VFS_FIND(lremovexattr);
1818 return handle->fns->lremovexattr(handle, path, name);
1819 }
1820
1821 int smb_vfs_call_fremovexattr(struct vfs_handle_struct *handle,
1822 struct files_struct *fsp, const char *name)
1823 {
1824 VFS_FIND(fremovexattr);
1825 return handle->fns->fremovexattr(handle, fsp, name);
1826 }
1827
1828 int smb_vfs_call_setxattr(struct vfs_handle_struct *handle, const char *path,
1829 const char *name, const void *value, size_t size,
1830 int flags)
1831 {
1832 VFS_FIND(setxattr);
1833 return handle->fns->setxattr(handle, path, name, value, size, flags);
1834 }
1835
1836 int smb_vfs_call_lsetxattr(struct vfs_handle_struct *handle, const char *path,
1837 const char *name, const void *value, size_t size,
1838 int flags)
1839 {
1840 VFS_FIND(lsetxattr);
1841 return handle->fns->lsetxattr(handle, path, name, value, size, flags);
1842 }
1843
1844 int smb_vfs_call_fsetxattr(struct vfs_handle_struct *handle,
1845 struct files_struct *fsp, const char *name,
1846 const void *value, size_t size, int flags)
1847 {
1848 VFS_FIND(fsetxattr);
1849 return handle->fns->fsetxattr(handle, fsp, name, value, size, flags);
1850 }
1851
1852 int smb_vfs_call_aio_read(struct vfs_handle_struct *handle,
1853 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
1854 {
1855 VFS_FIND(aio_read);
1856 return handle->fns->aio_read(handle, fsp, aiocb);
1857 }
1858
1859 int smb_vfs_call_aio_write(struct vfs_handle_struct *handle,
1860 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
1861 {
1862 VFS_FIND(aio_write);
1863 return handle->fns->aio_write(handle, fsp, aiocb);
1864 }
1865
1866 ssize_t smb_vfs_call_aio_return_fn(struct vfs_handle_struct *handle,
1867 struct files_struct *fsp,
1868 SMB_STRUCT_AIOCB *aiocb)
1869 {
1870 VFS_FIND(aio_return_fn);
1871 return handle->fns->aio_return_fn(handle, fsp, aiocb);
1872 }
1873
1874 int smb_vfs_call_aio_cancel(struct vfs_handle_struct *handle,
1875 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
1876 {
1877 VFS_FIND(aio_cancel);
1878 return handle->fns->aio_cancel(handle, fsp, aiocb);
1879 }
1880
1881 int smb_vfs_call_aio_error_fn(struct vfs_handle_struct *handle,
1882 struct files_struct *fsp,
1883 SMB_STRUCT_AIOCB *aiocb)
1884 {
1885 VFS_FIND(aio_error_fn);
1886 return handle->fns->aio_error_fn(handle, fsp, aiocb);
1887 }
1888
1889 int smb_vfs_call_aio_fsync(struct vfs_handle_struct *handle,
1890 struct files_struct *fsp, int op,
1891 SMB_STRUCT_AIOCB *aiocb)
1892 {
1893 VFS_FIND(aio_fsync);
1894 return handle->fns->aio_fsync(handle, fsp, op, aiocb);
1895 }
1896
1897 int smb_vfs_call_aio_suspend(struct vfs_handle_struct *handle,
1898 struct files_struct *fsp,
1899 const SMB_STRUCT_AIOCB * const aiocb[], int n,
1900 const struct timespec *timeout)
1901 {
1902 VFS_FIND(aio_suspend);
1903 return handle->fns->aio_suspend(handle, fsp, aiocb, n, timeout);
1904 }
1905
1906 bool smb_vfs_call_aio_force(struct vfs_handle_struct *handle,
1907 struct files_struct *fsp)
1908 {
1909 VFS_FIND(aio_force);
1910 return handle->fns->aio_force(handle, fsp);
1911 }
1912
1913 bool smb_vfs_call_is_offline(struct vfs_handle_struct *handle,
1914 const char *path, SMB_STRUCT_STAT *sbuf)
1915 {
1916 VFS_FIND(is_offline);
1917 return handle->fns->is_offline(handle, path, sbuf);
1918 }
1919
1920 int smb_vfs_call_set_offline(struct vfs_handle_struct *handle,
1921 const char *path)
1922 {
1923 VFS_FIND(set_offline);
1924 return handle->fns->set_offline(handle, path);
1925 }
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