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idl: rebuild drsuapi.idl
[Samba/aatanasov.git] / source3 / smbd / vfs.c
blob42ff8b19cda5afb630c5013ed7faf7819c5e4c3e
1 /*
2 Unix SMB/Netbios implementation.
3 Version 1.9.
4 VFS initialisation and support functions
5 Copyright (C) Tim Potter 1999
6 Copyright (C) Alexander Bokovoy 2002
7 Copyright (C) James Peach 2006
8 Copyright (C) Volker Lendecke 2009
9
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
14
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>.
22
23 This work was sponsored by Optifacio Software Services, Inc.
24 */
25
26 #include "includes.h"
27 #include "smbd/globals.h"
28
29 #undef DBGC_CLASS
30 #define DBGC_CLASS DBGC_VFS
31
32 static_decl_vfs;
33
34 struct vfs_init_function_entry {
35 char *name;
36 struct vfs_init_function_entry *prev, *next;
37 const struct vfs_fn_pointers *fns;
38 };
39
40 /****************************************************************************
41 maintain the list of available backends
42 ****************************************************************************/
43
44 static struct vfs_init_function_entry *vfs_find_backend_entry(const char *name)
45 {
46 struct vfs_init_function_entry *entry = backends;
47
48 DEBUG(10, ("vfs_find_backend_entry called for %s\n", name));
49
50 while(entry) {
51 if (strcmp(entry->name, name)==0) return entry;
52 entry = entry->next;
53 }
54
55 return NULL;
56 }
57
58 NTSTATUS smb_register_vfs(int version, const char *name,
59 const struct vfs_fn_pointers *fns)
60 {
61 struct vfs_init_function_entry *entry = backends;
62
63 if ((version != SMB_VFS_INTERFACE_VERSION)) {
64 DEBUG(0, ("Failed to register vfs module.\n"
65 "The module was compiled against SMB_VFS_INTERFACE_VERSION %d,\n"
66 "current SMB_VFS_INTERFACE_VERSION is %d.\n"
67 "Please recompile against the current Samba Version!\n",
68 version, SMB_VFS_INTERFACE_VERSION));
69 return NT_STATUS_OBJECT_TYPE_MISMATCH;
70 }
71
72 if (!name || !name[0]) {
73 DEBUG(0,("smb_register_vfs() called with NULL pointer or empty name!\n"));
74 return NT_STATUS_INVALID_PARAMETER;
75 }
76
77 if (vfs_find_backend_entry(name)) {
78 DEBUG(0,("VFS module %s already loaded!\n", name));
79 return NT_STATUS_OBJECT_NAME_COLLISION;
80 }
81
82 entry = SMB_XMALLOC_P(struct vfs_init_function_entry);
83 entry->name = smb_xstrdup(name);
84 entry->fns = fns;
85
86 DLIST_ADD(backends, entry);
87 DEBUG(5, ("Successfully added vfs backend '%s'\n", name));
88 return NT_STATUS_OK;
89 }
90
91 /****************************************************************************
92 initialise default vfs hooks
93 ****************************************************************************/
94
95 static void vfs_init_default(connection_struct *conn)
96 {
97 DEBUG(3, ("Initialising default vfs hooks\n"));
98 vfs_init_custom(conn, DEFAULT_VFS_MODULE_NAME);
99 }
100
101 /****************************************************************************
102 initialise custom vfs hooks
103 ****************************************************************************/
104
105 bool vfs_init_custom(connection_struct *conn, const char *vfs_object)
106 {
107 char *module_path = NULL;
108 char *module_name = NULL;
109 char *module_param = NULL, *p;
110 vfs_handle_struct *handle;
111 const struct vfs_init_function_entry *entry;
112
113 if (!conn||!vfs_object||!vfs_object[0]) {
114 DEBUG(0,("vfs_init_custon() called with NULL pointer or emtpy vfs_object!\n"));
115 return False;
116 }
117
118 if(!backends) {
119 static_init_vfs;
120 }
121
122 DEBUG(3, ("Initialising custom vfs hooks from [%s]\n", vfs_object));
123
124 module_path = smb_xstrdup(vfs_object);
125
126 p = strchr_m(module_path, ':');
127
128 if (p) {
129 *p = 0;
130 module_param = p+1;
131 trim_char(module_param, ' ', ' ');
132 }
133
134 trim_char(module_path, ' ', ' ');
135
136 module_name = smb_xstrdup(module_path);
137
138 if ((module_name[0] == '/') &&
139 (strcmp(module_path, DEFAULT_VFS_MODULE_NAME) != 0)) {
140
141 /*
142 * Extract the module name from the path. Just use the base
143 * name of the last path component.
144 */
145
146 SAFE_FREE(module_name);
147 module_name = smb_xstrdup(strrchr_m(module_path, '/')+1);
148
149 p = strchr_m(module_name, '.');
150
151 if (p != NULL) {
152 *p = '\0';
153 }
154 }
155
156 /* First, try to load the module with the new module system */
157 entry = vfs_find_backend_entry(module_name);
158 if (!entry) {
159 NTSTATUS status;
160
161 DEBUG(5, ("vfs module [%s] not loaded - trying to load...\n",
162 vfs_object));
163
164 status = smb_probe_module("vfs", module_path);
165 if (!NT_STATUS_IS_OK(status)) {
166 DEBUG(0, ("error probing vfs module '%s': %s\n",
167 module_path, nt_errstr(status)));
168 goto fail;
169 }
170
171 entry = vfs_find_backend_entry(module_name);
172 if (!entry) {
173 DEBUG(0,("Can't find a vfs module [%s]\n",vfs_object));
174 goto fail;
175 }
176 }
177
178 DEBUGADD(5,("Successfully loaded vfs module [%s] with the new modules system\n", vfs_object));
179
180 handle = TALLOC_ZERO_P(conn, vfs_handle_struct);
181 if (!handle) {
182 DEBUG(0,("TALLOC_ZERO() failed!\n"));
183 goto fail;
184 }
185 handle->conn = conn;
186 handle->fns = entry->fns;
187 if (module_param) {
188 handle->param = talloc_strdup(conn, module_param);
189 }
190 DLIST_ADD(conn->vfs_handles, handle);
191
192 SAFE_FREE(module_path);
193 SAFE_FREE(module_name);
194 return True;
195
196 fail:
197 SAFE_FREE(module_path);
198 SAFE_FREE(module_name);
199 return False;
200 }
201
202 /*****************************************************************
203 Allow VFS modules to extend files_struct with VFS-specific state.
204 This will be ok for small numbers of extensions, but might need to
205 be refactored if it becomes more widely used.
206 ******************************************************************/
207
208 #define EXT_DATA_AREA(e) ((uint8 *)(e) + sizeof(struct vfs_fsp_data))
209
210 void *vfs_add_fsp_extension_notype(vfs_handle_struct *handle,
211 files_struct *fsp, size_t ext_size,
212 void (*destroy_fn)(void *p_data))
213 {
214 struct vfs_fsp_data *ext;
215 void * ext_data;
216
217 /* Prevent VFS modules adding multiple extensions. */
218 if ((ext_data = vfs_fetch_fsp_extension(handle, fsp))) {
219 return ext_data;
220 }
221
222 ext = (struct vfs_fsp_data *)TALLOC_ZERO(
223 handle->conn, sizeof(struct vfs_fsp_data) + ext_size);
224 if (ext == NULL) {
225 return NULL;
226 }
227
228 ext->owner = handle;
229 ext->next = fsp->vfs_extension;
230 ext->destroy = destroy_fn;
231 fsp->vfs_extension = ext;
232 return EXT_DATA_AREA(ext);
233 }
234
235 void vfs_remove_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
236 {
237 struct vfs_fsp_data *curr;
238 struct vfs_fsp_data *prev;
239
240 for (curr = fsp->vfs_extension, prev = NULL;
241 curr;
242 prev = curr, curr = curr->next) {
243 if (curr->owner == handle) {
244 if (prev) {
245 prev->next = curr->next;
246 } else {
247 fsp->vfs_extension = curr->next;
248 }
249 if (curr->destroy) {
250 curr->destroy(EXT_DATA_AREA(curr));
251 }
252 TALLOC_FREE(curr);
253 return;
254 }
255 }
256 }
257
258 void *vfs_memctx_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
259 {
260 struct vfs_fsp_data *head;
261
262 for (head = fsp->vfs_extension; head; head = head->next) {
263 if (head->owner == handle) {
264 return head;
265 }
266 }
267
268 return NULL;
269 }
270
271 void *vfs_fetch_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
272 {
273 struct vfs_fsp_data *head;
274
275 head = (struct vfs_fsp_data *)vfs_memctx_fsp_extension(handle, fsp);
276 if (head != NULL) {
277 return EXT_DATA_AREA(head);
278 }
279
280 return NULL;
281 }
282
283 #undef EXT_DATA_AREA
284
285 /*****************************************************************
286 Generic VFS init.
287 ******************************************************************/
288
289 bool smbd_vfs_init(connection_struct *conn)
290 {
291 const char **vfs_objects;
292 unsigned int i = 0;
293 int j = 0;
294
295 /* Normal share - initialise with disk access functions */
296 vfs_init_default(conn);
297 vfs_objects = lp_vfs_objects(SNUM(conn));
298
299 /* Override VFS functions if 'vfs object' was not specified*/
300 if (!vfs_objects || !vfs_objects[0])
301 return True;
302
303 for (i=0; vfs_objects[i] ;) {
304 i++;
305 }
306
307 for (j=i-1; j >= 0; j--) {
308 if (!vfs_init_custom(conn, vfs_objects[j])) {
309 DEBUG(0, ("smbd_vfs_init: vfs_init_custom failed for %s\n", vfs_objects[j]));
310 return False;
311 }
312 }
313 return True;
314 }
315
316 /*******************************************************************
317 Check if a file exists in the vfs.
318 ********************************************************************/
319
320 NTSTATUS vfs_file_exist(connection_struct *conn, struct smb_filename *smb_fname)
321 {
322 /* Only return OK if stat was successful and S_ISREG */
323 if ((SMB_VFS_STAT(conn, smb_fname) != -1) &&
324 S_ISREG(smb_fname->st.st_ex_mode)) {
325 return NT_STATUS_OK;
326 }
327
328 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
329 }
330
331 /****************************************************************************
332 Read data from fsp on the vfs. (note: EINTR re-read differs from vfs_write_data)
333 ****************************************************************************/
334
335 ssize_t vfs_read_data(files_struct *fsp, char *buf, size_t byte_count)
336 {
337 size_t total=0;
338
339 while (total < byte_count)
340 {
341 ssize_t ret = SMB_VFS_READ(fsp, buf + total,
342 byte_count - total);
343
344 if (ret == 0) return total;
345 if (ret == -1) {
346 if (errno == EINTR)
347 continue;
348 else
349 return -1;
350 }
351 total += ret;
352 }
353 return (ssize_t)total;
354 }
355
356 ssize_t vfs_pread_data(files_struct *fsp, char *buf,
357 size_t byte_count, SMB_OFF_T offset)
358 {
359 size_t total=0;
360
361 while (total < byte_count)
362 {
363 ssize_t ret = SMB_VFS_PREAD(fsp, buf + total,
364 byte_count - total, offset + total);
365
366 if (ret == 0) return total;
367 if (ret == -1) {
368 if (errno == EINTR)
369 continue;
370 else
371 return -1;
372 }
373 total += ret;
374 }
375 return (ssize_t)total;
376 }
377
378 /****************************************************************************
379 Write data to a fd on the vfs.
380 ****************************************************************************/
381
382 ssize_t vfs_write_data(struct smb_request *req,
383 files_struct *fsp,
384 const char *buffer,
385 size_t N)
386 {
387 size_t total=0;
388 ssize_t ret;
389
390 if (req && req->unread_bytes) {
391 SMB_ASSERT(req->unread_bytes == N);
392 /* VFS_RECVFILE must drain the socket
393 * before returning. */
394 req->unread_bytes = 0;
395 return SMB_VFS_RECVFILE(smbd_server_fd(),
396 fsp,
397 (SMB_OFF_T)-1,
398 N);
399 }
400
401 while (total < N) {
402 ret = SMB_VFS_WRITE(fsp, buffer + total, N - total);
403
404 if (ret == -1)
405 return -1;
406 if (ret == 0)
407 return total;
408
409 total += ret;
410 }
411 return (ssize_t)total;
412 }
413
414 ssize_t vfs_pwrite_data(struct smb_request *req,
415 files_struct *fsp,
416 const char *buffer,
417 size_t N,
418 SMB_OFF_T offset)
419 {
420 size_t total=0;
421 ssize_t ret;
422
423 if (req && req->unread_bytes) {
424 SMB_ASSERT(req->unread_bytes == N);
425 /* VFS_RECVFILE must drain the socket
426 * before returning. */
427 req->unread_bytes = 0;
428 return SMB_VFS_RECVFILE(smbd_server_fd(),
429 fsp,
430 offset,
431 N);
432 }
433
434 while (total < N) {
435 ret = SMB_VFS_PWRITE(fsp, buffer + total, N - total,
436 offset + total);
437
438 if (ret == -1)
439 return -1;
440 if (ret == 0)
441 return total;
442
443 total += ret;
444 }
445 return (ssize_t)total;
446 }
447 /****************************************************************************
448 An allocate file space call using the vfs interface.
449 Allocates space for a file from a filedescriptor.
450 Returns 0 on success, -1 on failure.
451 ****************************************************************************/
452
453 int vfs_allocate_file_space(files_struct *fsp, uint64_t len)
454 {
455 int ret;
456 SMB_STRUCT_STAT st;
457 connection_struct *conn = fsp->conn;
458 uint64_t space_avail;
459 uint64_t bsize,dfree,dsize;
460
461 /*
462 * Actually try and commit the space on disk....
463 */
464
465 DEBUG(10,("vfs_allocate_file_space: file %s, len %.0f\n",
466 fsp_str_dbg(fsp), (double)len));
467
468 if (((SMB_OFF_T)len) < 0) {
469 DEBUG(0,("vfs_allocate_file_space: %s negative len "
470 "requested.\n", fsp_str_dbg(fsp)));
471 errno = EINVAL;
472 return -1;
473 }
474
475 ret = SMB_VFS_FSTAT(fsp, &st);
476 if (ret == -1)
477 return ret;
478
479 if (len == (uint64_t)st.st_ex_size)
480 return 0;
481
482 if (len < (uint64_t)st.st_ex_size) {
483 /* Shrink - use ftruncate. */
484
485 DEBUG(10,("vfs_allocate_file_space: file %s, shrink. Current "
486 "size %.0f\n", fsp_str_dbg(fsp),
487 (double)st.st_ex_size));
488
489 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_ALLOC_SHRINK);
490
491 flush_write_cache(fsp, SIZECHANGE_FLUSH);
492 if ((ret = SMB_VFS_FTRUNCATE(fsp, (SMB_OFF_T)len)) != -1) {
493 set_filelen_write_cache(fsp, len);
494 }
495
496 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_ALLOC_SHRINK);
497
498 return ret;
499 }
500
501 /* Grow - we need to test if we have enough space. */
502
503 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_ALLOC_GROW);
504 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_ALLOC_GROW);
505
506 if (!lp_strict_allocate(SNUM(fsp->conn)))
507 return 0;
508
509 len -= st.st_ex_size;
510 len /= 1024; /* Len is now number of 1k blocks needed. */
511 space_avail = get_dfree_info(conn, fsp->fsp_name->base_name, false,
512 &bsize, &dfree, &dsize);
513 if (space_avail == (uint64_t)-1) {
514 return -1;
515 }
516
517 DEBUG(10,("vfs_allocate_file_space: file %s, grow. Current size %.0f, "
518 "needed blocks = %.0f, space avail = %.0f\n",
519 fsp_str_dbg(fsp), (double)st.st_ex_size, (double)len,
520 (double)space_avail));
521
522 if (len > space_avail) {
523 errno = ENOSPC;
524 return -1;
525 }
526
527 return 0;
528 }
529
530 /****************************************************************************
531 A vfs set_filelen call.
532 set the length of a file from a filedescriptor.
533 Returns 0 on success, -1 on failure.
534 ****************************************************************************/
535
536 int vfs_set_filelen(files_struct *fsp, SMB_OFF_T len)
537 {
538 int ret;
539
540 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_SET_FILE_LEN);
541
542 DEBUG(10,("vfs_set_filelen: ftruncate %s to len %.0f\n",
543 fsp_str_dbg(fsp), (double)len));
544 flush_write_cache(fsp, SIZECHANGE_FLUSH);
545 if ((ret = SMB_VFS_FTRUNCATE(fsp, len)) != -1) {
546 set_filelen_write_cache(fsp, len);
547 notify_fname(fsp->conn, NOTIFY_ACTION_MODIFIED,
548 FILE_NOTIFY_CHANGE_SIZE
549 | FILE_NOTIFY_CHANGE_ATTRIBUTES,
550 fsp->fsp_name->base_name);
551 }
552
553 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_SET_FILE_LEN);
554
555 return ret;
556 }
557
558 /****************************************************************************
559 A vfs fill sparse call.
560 Writes zeros from the end of file to len, if len is greater than EOF.
561 Used only by strict_sync.
562 Returns 0 on success, -1 on failure.
563 ****************************************************************************/
564
565 #define SPARSE_BUF_WRITE_SIZE (32*1024)
566
567 int vfs_fill_sparse(files_struct *fsp, SMB_OFF_T len)
568 {
569 int ret;
570 SMB_STRUCT_STAT st;
571 SMB_OFF_T offset;
572 size_t total;
573 size_t num_to_write;
574 ssize_t pwrite_ret;
575
576 ret = SMB_VFS_FSTAT(fsp, &st);
577 if (ret == -1) {
578 return ret;
579 }
580
581 if (len <= st.st_ex_size) {
582 return 0;
583 }
584
585 DEBUG(10,("vfs_fill_sparse: write zeros in file %s from len %.0f to "
586 "len %.0f (%.0f bytes)\n", fsp_str_dbg(fsp),
587 (double)st.st_ex_size, (double)len,
588 (double)(len - st.st_ex_size)));
589
590 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_FILL_SPARSE);
591
592 flush_write_cache(fsp, SIZECHANGE_FLUSH);
593
594 if (!sparse_buf) {
595 sparse_buf = SMB_CALLOC_ARRAY(char, SPARSE_BUF_WRITE_SIZE);
596 if (!sparse_buf) {
597 errno = ENOMEM;
598 ret = -1;
599 goto out;
600 }
601 }
602
603 offset = st.st_ex_size;
604 num_to_write = len - st.st_ex_size;
605 total = 0;
606
607 while (total < num_to_write) {
608 size_t curr_write_size = MIN(SPARSE_BUF_WRITE_SIZE, (num_to_write - total));
609
610 pwrite_ret = SMB_VFS_PWRITE(fsp, sparse_buf, curr_write_size, offset + total);
611 if (pwrite_ret == -1) {
612 DEBUG(10,("vfs_fill_sparse: SMB_VFS_PWRITE for file "
613 "%s failed with error %s\n",
614 fsp_str_dbg(fsp), strerror(errno)));
615 ret = -1;
616 goto out;
617 }
618 if (pwrite_ret == 0) {
619 ret = 0;
620 goto out;
621 }
622
623 total += pwrite_ret;
624 }
625
626 set_filelen_write_cache(fsp, len);
627
628 ret = 0;
629 out:
630 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_FILL_SPARSE);
631 return ret;
632 }
633
634 /****************************************************************************
635 Transfer some data (n bytes) between two file_struct's.
636 ****************************************************************************/
637
638 static ssize_t vfs_read_fn(void *file, void *buf, size_t len)
639 {
640 struct files_struct *fsp = (struct files_struct *)file;
641
642 return SMB_VFS_READ(fsp, buf, len);
643 }
644
645 static ssize_t vfs_write_fn(void *file, const void *buf, size_t len)
646 {
647 struct files_struct *fsp = (struct files_struct *)file;
648
649 return SMB_VFS_WRITE(fsp, buf, len);
650 }
651
652 SMB_OFF_T vfs_transfer_file(files_struct *in, files_struct *out, SMB_OFF_T n)
653 {
654 return transfer_file_internal((void *)in, (void *)out, n,
655 vfs_read_fn, vfs_write_fn);
656 }
657
658 /*******************************************************************
659 A vfs_readdir wrapper which just returns the file name.
660 ********************************************************************/
661
662 char *vfs_readdirname(connection_struct *conn, void *p, SMB_STRUCT_STAT *sbuf)
663 {
664 SMB_STRUCT_DIRENT *ptr= NULL;
665 char *dname = NULL;
666 NTSTATUS result;
667
668 if (!p)
669 return(NULL);
670
671 ptr = SMB_VFS_READDIR(conn, (DIR *)p, sbuf);
672 if (!ptr)
673 return(NULL);
674
675 dname = talloc_strdup(talloc_tos(), ptr->d_name);
676 if (dname == NULL) {
677 errno = ENOMEM;
678 return NULL;
679 }
680 result = SMB_VFS_TRANSLATE_NAME(conn, &dname);
681 if (!NT_STATUS_IS_OK(result)) {
682 TALLOC_FREE(dname);
683 return NULL;
684 }
685
686 #ifdef NEXT2
687 if (telldir(p) < 0)
688 return(NULL);
689 #endif
690
691 #ifdef HAVE_BROKEN_READDIR_NAME
692 /* using /usr/ucb/cc is BAD */
693 dname = dname - 2;
694 #endif
695
696 return(dname);
697 }
698
699 /*******************************************************************
700 A wrapper for vfs_chdir().
701 ********************************************************************/
702
703 int vfs_ChDir(connection_struct *conn, const char *path)
704 {
705 int res;
706
707 if (!LastDir) {
708 LastDir = SMB_STRDUP("");
709 }
710
711 if (strcsequal(path,"."))
712 return(0);
713
714 if (*path == '/' && strcsequal(LastDir,path))
715 return(0);
716
717 DEBUG(4,("vfs_ChDir to %s\n",path));
718
719 res = SMB_VFS_CHDIR(conn,path);
720 if (!res) {
721 SAFE_FREE(LastDir);
722 LastDir = SMB_STRDUP(path);
723 }
724 return(res);
725 }
726
727 /*******************************************************************
728 Return the absolute current directory path - given a UNIX pathname.
729 Note that this path is returned in DOS format, not UNIX
730 format. Note this can be called with conn == NULL.
731 ********************************************************************/
732
733 char *vfs_GetWd(TALLOC_CTX *ctx, connection_struct *conn)
734 {
735 char s[PATH_MAX+1];
736 char *result = NULL;
737 DATA_BLOB cache_value;
738 struct file_id key;
739 struct smb_filename *smb_fname_dot = NULL;
740 struct smb_filename *smb_fname_full = NULL;
741 NTSTATUS status;
742
743 *s = 0;
744
745 if (!lp_getwd_cache()) {
746 goto nocache;
747 }
748
749 status = create_synthetic_smb_fname(ctx, ".", NULL, NULL,
750 &smb_fname_dot);
751 if (!NT_STATUS_IS_OK(status)) {
752 errno = map_errno_from_nt_status(status);
753 goto out;
754 }
755
756 if (SMB_VFS_STAT(conn, smb_fname_dot) == -1) {
757 /*
758 * Known to fail for root: the directory may be NFS-mounted
759 * and exported with root_squash (so has no root access).
760 */
761 DEBUG(1,("vfs_GetWd: couldn't stat \".\" error %s "
762 "(NFS problem ?)\n", strerror(errno) ));
763 goto nocache;
764 }
765
766 key = vfs_file_id_from_sbuf(conn, &smb_fname_dot->st);
767
768 if (!memcache_lookup(smbd_memcache(), GETWD_CACHE,
769 data_blob_const(&key, sizeof(key)),
770 &cache_value)) {
771 goto nocache;
772 }
773
774 SMB_ASSERT((cache_value.length > 0)
775 && (cache_value.data[cache_value.length-1] == '\0'));
776
777 status = create_synthetic_smb_fname(ctx, (char *)cache_value.data,
778 NULL, NULL, &smb_fname_full);
779 if (!NT_STATUS_IS_OK(status)) {
780 errno = map_errno_from_nt_status(status);
781 goto out;
782 }
783
784 if ((SMB_VFS_STAT(conn, smb_fname_full) == 0) &&
785 (smb_fname_dot->st.st_ex_dev == smb_fname_full->st.st_ex_dev) &&
786 (smb_fname_dot->st.st_ex_ino == smb_fname_full->st.st_ex_ino) &&
787 (S_ISDIR(smb_fname_dot->st.st_ex_mode))) {
788 /*
789 * Ok, we're done
790 */
791 result = talloc_strdup(ctx, smb_fname_full->base_name);
792 if (result == NULL) {
793 errno = ENOMEM;
794 }
795 goto out;
796 }
797
798 nocache:
799
800 /*
801 * We don't have the information to hand so rely on traditional
802 * methods. The very slow getcwd, which spawns a process on some
803 * systems, or the not quite so bad getwd.
804 */
805
806 if (!SMB_VFS_GETWD(conn,s)) {
807 DEBUG(0, ("vfs_GetWd: SMB_VFS_GETWD call failed: %s\n",
808 strerror(errno)));
809 goto out;
810 }
811
812 if (lp_getwd_cache() && VALID_STAT(smb_fname_dot->st)) {
813 key = vfs_file_id_from_sbuf(conn, &smb_fname_dot->st);
814
815 memcache_add(smbd_memcache(), GETWD_CACHE,
816 data_blob_const(&key, sizeof(key)),
817 data_blob_const(s, strlen(s)+1));
818 }
819
820 result = talloc_strdup(ctx, s);
821 if (result == NULL) {
822 errno = ENOMEM;
823 }
824
825 out:
826 TALLOC_FREE(smb_fname_dot);
827 TALLOC_FREE(smb_fname_full);
828 return result;
829 }
830
831 /*******************************************************************
832 Reduce a file name, removing .. elements and checking that
833 it is below dir in the heirachy. This uses realpath.
834 ********************************************************************/
835
836 NTSTATUS check_reduced_name(connection_struct *conn, const char *fname)
837 {
838 #ifdef REALPATH_TAKES_NULL
839 bool free_resolved_name = True;
840 #else
841 char resolved_name_buf[PATH_MAX+1];
842 bool free_resolved_name = False;
843 #endif
844 char *resolved_name = NULL;
845 char *p = NULL;
846
847 DEBUG(3,("reduce_name [%s] [%s]\n", fname, conn->connectpath));
848
849 #ifdef REALPATH_TAKES_NULL
850 resolved_name = SMB_VFS_REALPATH(conn,fname,NULL);
851 #else
852 resolved_name = SMB_VFS_REALPATH(conn,fname,resolved_name_buf);
853 #endif
854
855 if (!resolved_name) {
856 switch (errno) {
857 case ENOTDIR:
858 DEBUG(3,("reduce_name: Component not a directory in getting realpath for %s\n", fname));
859 return map_nt_error_from_unix(errno);
860 case ENOENT:
861 {
862 TALLOC_CTX *ctx = talloc_tos();
863 char *tmp_fname = NULL;
864 char *last_component = NULL;
865 /* Last component didn't exist. Remove it and try and canonicalise the directory. */
866
867 tmp_fname = talloc_strdup(ctx, fname);
868 if (!tmp_fname) {
869 return NT_STATUS_NO_MEMORY;
870 }
871 p = strrchr_m(tmp_fname, '/');
872 if (p) {
873 *p++ = '\0';
874 last_component = p;
875 } else {
876 last_component = tmp_fname;
877 tmp_fname = talloc_strdup(ctx,
878 ".");
879 if (!tmp_fname) {
880 return NT_STATUS_NO_MEMORY;
881 }
882 }
883
884 #ifdef REALPATH_TAKES_NULL
885 resolved_name = SMB_VFS_REALPATH(conn,tmp_fname,NULL);
886 #else
887 resolved_name = SMB_VFS_REALPATH(conn,tmp_fname,resolved_name_buf);
888 #endif
889 if (!resolved_name) {
890 DEBUG(3,("reduce_name: couldn't get realpath for %s\n", fname));
891 return map_nt_error_from_unix(errno);
892 }
893 tmp_fname = talloc_asprintf(ctx,
894 "%s/%s",
895 resolved_name,
896 last_component);
897 if (!tmp_fname) {
898 return NT_STATUS_NO_MEMORY;
899 }
900 #ifdef REALPATH_TAKES_NULL
901 SAFE_FREE(resolved_name);
902 resolved_name = SMB_STRDUP(tmp_fname);
903 if (!resolved_name) {
904 DEBUG(0,("reduce_name: malloc fail for %s\n", tmp_fname));
905 return NT_STATUS_NO_MEMORY;
906 }
907 #else
908 safe_strcpy(resolved_name_buf, tmp_fname, PATH_MAX);
909 resolved_name = resolved_name_buf;
910 #endif
911 break;
912 }
913 default:
914 DEBUG(1,("reduce_name: couldn't get realpath for %s\n", fname));
915 return map_nt_error_from_unix(errno);
916 }
917 }
918
919 DEBUG(10,("reduce_name realpath [%s] -> [%s]\n", fname, resolved_name));
920
921 if (*resolved_name != '/') {
922 DEBUG(0,("reduce_name: realpath doesn't return absolute paths !\n"));
923 if (free_resolved_name) {
924 SAFE_FREE(resolved_name);
925 }
926 return NT_STATUS_OBJECT_NAME_INVALID;
927 }
928
929 /* Check for widelinks allowed. */
930 if (!lp_widelinks(SNUM(conn))) {
931 const char *conn_rootdir;
932
933 conn_rootdir = SMB_VFS_CONNECTPATH(conn, fname);
934 if (conn_rootdir == NULL) {
935 DEBUG(2, ("check_reduced_name: Could not get conn_rootdir\n"));
936 if (free_resolved_name) {
937 SAFE_FREE(resolved_name);
938 }
939 return NT_STATUS_ACCESS_DENIED;
940 }
941
942 if (strncmp(conn_rootdir, resolved_name,
943 strlen(conn_rootdir)) != 0) {
944 DEBUG(2, ("reduce_name: Bad access attempt: %s is "
945 "a symlink outside the share path",
946 fname));
947 if (free_resolved_name) {
948 SAFE_FREE(resolved_name);
949 }
950 return NT_STATUS_ACCESS_DENIED;
951 }
952 }
953
954 /* Check if we are allowing users to follow symlinks */
955 /* Patch from David Clerc <David.Clerc@cui.unige.ch>
956 University of Geneva */
957
958 #ifdef S_ISLNK
959 if (!lp_symlinks(SNUM(conn))) {
960 struct smb_filename *smb_fname = NULL;
961 NTSTATUS status;
962
963 status = create_synthetic_smb_fname(talloc_tos(), fname, NULL,
964 NULL, &smb_fname);
965 if (!NT_STATUS_IS_OK(status)) {
966 if (free_resolved_name) {
967 SAFE_FREE(resolved_name);
968 }
969 return status;
970 }
971
972 if ( (SMB_VFS_LSTAT(conn, smb_fname) != -1) &&
973 (S_ISLNK(smb_fname->st.st_ex_mode)) ) {
974 if (free_resolved_name) {
975 SAFE_FREE(resolved_name);
976 }
977 DEBUG(3,("reduce_name: denied: file path name %s is a symlink\n",resolved_name));
978 TALLOC_FREE(smb_fname);
979 return NT_STATUS_ACCESS_DENIED;
980 }
981 TALLOC_FREE(smb_fname);
982 }
983 #endif
984
985 DEBUG(3,("reduce_name: %s reduced to %s\n", fname, resolved_name));
986 if (free_resolved_name) {
987 SAFE_FREE(resolved_name);
988 }
989 return NT_STATUS_OK;
990 }
991
992 /**
993 * XXX: This is temporary and there should be no callers of this once
994 * smb_filename is plumbed through all path based operations.
995 */
996 int vfs_stat_smb_fname(struct connection_struct *conn, const char *fname,
997 SMB_STRUCT_STAT *psbuf)
998 {
999 struct smb_filename *smb_fname = NULL;
1000 NTSTATUS status;
1001 int ret;
1002
1003 status = create_synthetic_smb_fname_split(talloc_tos(), fname, NULL,
1004 &smb_fname);
1005 if (!NT_STATUS_IS_OK(status)) {
1006 errno = map_errno_from_nt_status(status);
1007 return -1;
1008 }
1009
1010 ret = SMB_VFS_STAT(conn, smb_fname);
1011 if (ret != -1) {
1012 *psbuf = smb_fname->st;
1013 }
1014
1015 TALLOC_FREE(smb_fname);
1016 return ret;
1017 }
1018
1019 /**
1020 * XXX: This is temporary and there should be no callers of this once
1021 * smb_filename is plumbed through all path based operations.
1022 */
1023 int vfs_lstat_smb_fname(struct connection_struct *conn, const char *fname,
1024 SMB_STRUCT_STAT *psbuf)
1025 {
1026 struct smb_filename *smb_fname = NULL;
1027 NTSTATUS status;
1028 int ret;
1029
1030 status = create_synthetic_smb_fname_split(talloc_tos(), fname, NULL,
1031 &smb_fname);
1032 if (!NT_STATUS_IS_OK(status)) {
1033 errno = map_errno_from_nt_status(status);
1034 return -1;
1035 }
1036
1037 ret = SMB_VFS_LSTAT(conn, smb_fname);
1038 if (ret != -1) {
1039 *psbuf = smb_fname->st;
1040 }
1041
1042 TALLOC_FREE(smb_fname);
1043 return ret;
1044 }
1045
1046 /*
1047 generate a file_id from a stat structure
1048 */
1049 struct file_id vfs_file_id_from_sbuf(connection_struct *conn, const SMB_STRUCT_STAT *sbuf)
1050 {
1051 return SMB_VFS_FILE_ID_CREATE(conn, sbuf);
1052 }
1053
1054 int smb_vfs_call_connect(struct vfs_handle_struct *handle,
1055 const char *service, const char *user)
1056 {
1057 VFS_FIND(connect_fn);
1058 return handle->fns->connect_fn(handle, service, user);
1059 }
1060
1061 void smb_vfs_call_disconnect(struct vfs_handle_struct *handle)
1062 {
1063 VFS_FIND(disconnect);
1064 handle->fns->disconnect(handle);
1065 }
1066
1067 uint64_t smb_vfs_call_disk_free(struct vfs_handle_struct *handle,
1068 const char *path, bool small_query,
1069 uint64_t *bsize, uint64_t *dfree,
1070 uint64_t *dsize)
1071 {
1072 VFS_FIND(disk_free);
1073 return handle->fns->disk_free(handle, path, small_query, bsize, dfree,
1074 dsize);
1075 }
1076
1077 int smb_vfs_call_get_quota(struct vfs_handle_struct *handle,
1078 enum SMB_QUOTA_TYPE qtype, unid_t id,
1079 SMB_DISK_QUOTA *qt)
1080 {
1081 VFS_FIND(get_quota);
1082 return handle->fns->get_quota(handle, qtype, id, qt);
1083 }
1084
1085 int smb_vfs_call_set_quota(struct vfs_handle_struct *handle,
1086 enum SMB_QUOTA_TYPE qtype, unid_t id,
1087 SMB_DISK_QUOTA *qt)
1088 {
1089 VFS_FIND(set_quota);
1090 return handle->fns->set_quota(handle, qtype, id, qt);
1091 }
1092
1093 int smb_vfs_call_get_shadow_copy_data(struct vfs_handle_struct *handle,
1094 struct files_struct *fsp,
1095 SHADOW_COPY_DATA *shadow_copy_data,
1096 bool labels)
1097 {
1098 VFS_FIND(get_shadow_copy_data);
1099 return handle->fns->get_shadow_copy_data(handle, fsp, shadow_copy_data,
1100 labels);
1101 }
1102 int smb_vfs_call_statvfs(struct vfs_handle_struct *handle, const char *path,
1103 struct vfs_statvfs_struct *statbuf)
1104 {
1105 VFS_FIND(statvfs);
1106 return handle->fns->statvfs(handle, path, statbuf);
1107 }
1108
1109 uint32_t smb_vfs_call_fs_capabilities(struct vfs_handle_struct *handle,
1110 enum timestamp_set_resolution *p_ts_res)
1111 {
1112 VFS_FIND(fs_capabilities);
1113 return handle->fns->fs_capabilities(handle, p_ts_res);
1114 }
1115
1116 SMB_STRUCT_DIR *smb_vfs_call_opendir(struct vfs_handle_struct *handle,
1117 const char *fname, const char *mask,
1118 uint32 attributes)
1119 {
1120 VFS_FIND(opendir);
1121 return handle->fns->opendir(handle, fname, mask, attributes);
1122 }
1123
1124 SMB_STRUCT_DIRENT *smb_vfs_call_readdir(struct vfs_handle_struct *handle,
1125 SMB_STRUCT_DIR *dirp,
1126 SMB_STRUCT_STAT *sbuf)
1127 {
1128 VFS_FIND(readdir);
1129 return handle->fns->readdir(handle, dirp, sbuf);
1130 }
1131
1132 void smb_vfs_call_seekdir(struct vfs_handle_struct *handle,
1133 SMB_STRUCT_DIR *dirp, long offset)
1134 {
1135 VFS_FIND(seekdir);
1136 handle->fns->seekdir(handle, dirp, offset);
1137 }
1138
1139 long smb_vfs_call_telldir(struct vfs_handle_struct *handle,
1140 SMB_STRUCT_DIR *dirp)
1141 {
1142 VFS_FIND(telldir);
1143 return handle->fns->telldir(handle, dirp);
1144 }
1145
1146 void smb_vfs_call_rewind_dir(struct vfs_handle_struct *handle,
1147 SMB_STRUCT_DIR *dirp)
1148 {
1149 VFS_FIND(rewind_dir);
1150 handle->fns->rewind_dir(handle, dirp);
1151 }
1152
1153 int smb_vfs_call_mkdir(struct vfs_handle_struct *handle, const char *path,
1154 mode_t mode)
1155 {
1156 VFS_FIND(mkdir);
1157 return handle->fns->mkdir(handle, path, mode);
1158 }
1159
1160 int smb_vfs_call_rmdir(struct vfs_handle_struct *handle, const char *path)
1161 {
1162 VFS_FIND(rmdir);
1163 return handle->fns->rmdir(handle, path);
1164 }
1165
1166 int smb_vfs_call_closedir(struct vfs_handle_struct *handle,
1167 SMB_STRUCT_DIR *dir)
1168 {
1169 VFS_FIND(closedir);
1170 return handle->fns->closedir(handle, dir);
1171 }
1172
1173 void smb_vfs_call_init_search_op(struct vfs_handle_struct *handle,
1174 SMB_STRUCT_DIR *dirp)
1175 {
1176 VFS_FIND(init_search_op);
1177 handle->fns->init_search_op(handle, dirp);
1178 }
1179
1180 int smb_vfs_call_open(struct vfs_handle_struct *handle,
1181 struct smb_filename *smb_fname, struct files_struct *fsp,
1182 int flags, mode_t mode)
1183 {
1184 VFS_FIND(open);
1185 return handle->fns->open(handle, smb_fname, fsp, flags, mode);
1186 }
1187
1188 NTSTATUS smb_vfs_call_create_file(struct vfs_handle_struct *handle,
1189 struct smb_request *req,
1190 uint16_t root_dir_fid,
1191 struct smb_filename *smb_fname,
1192 uint32_t access_mask,
1193 uint32_t share_access,
1194 uint32_t create_disposition,
1195 uint32_t create_options,
1196 uint32_t file_attributes,
1197 uint32_t oplock_request,
1198 uint64_t allocation_size,
1199 struct security_descriptor *sd,
1200 struct ea_list *ea_list,
1201 files_struct **result,
1202 int *pinfo)
1203 {
1204 VFS_FIND(create_file);
1205 return handle->fns->create_file(
1206 handle, req, root_dir_fid, smb_fname, access_mask,
1207 share_access, create_disposition, create_options,
1208 file_attributes, oplock_request, allocation_size, sd, ea_list,
1209 result, pinfo);
1210 }
1211
1212 int smb_vfs_call_close_fn(struct vfs_handle_struct *handle,
1213 struct files_struct *fsp)
1214 {
1215 VFS_FIND(close_fn);
1216 return handle->fns->close_fn(handle, fsp);
1217 }
1218
1219 ssize_t smb_vfs_call_vfs_read(struct vfs_handle_struct *handle,
1220 struct files_struct *fsp, void *data, size_t n)
1221 {
1222 VFS_FIND(vfs_read);
1223 return handle->fns->vfs_read(handle, fsp, data, n);
1224 }
1225
1226 ssize_t smb_vfs_call_pread(struct vfs_handle_struct *handle,
1227 struct files_struct *fsp, void *data, size_t n,
1228 SMB_OFF_T offset)
1229 {
1230 VFS_FIND(pread);
1231 return handle->fns->pread(handle, fsp, data, n, offset);
1232 }
1233
1234 ssize_t smb_vfs_call_write(struct vfs_handle_struct *handle,
1235 struct files_struct *fsp, const void *data,
1236 size_t n)
1237 {
1238 VFS_FIND(write);
1239 return handle->fns->write(handle, fsp, data, n);
1240 }
1241
1242 ssize_t smb_vfs_call_pwrite(struct vfs_handle_struct *handle,
1243 struct files_struct *fsp, const void *data,
1244 size_t n, SMB_OFF_T offset)
1245 {
1246 VFS_FIND(pwrite);
1247 return handle->fns->pwrite(handle, fsp, data, n, offset);
1248 }
1249
1250 SMB_OFF_T smb_vfs_call_lseek(struct vfs_handle_struct *handle,
1251 struct files_struct *fsp, SMB_OFF_T offset,
1252 int whence)
1253 {
1254 VFS_FIND(lseek);
1255 return handle->fns->lseek(handle, fsp, offset, whence);
1256 }
1257
1258 ssize_t smb_vfs_call_sendfile(struct vfs_handle_struct *handle, int tofd,
1259 files_struct *fromfsp, const DATA_BLOB *header,
1260 SMB_OFF_T offset, size_t count)
1261 {
1262 VFS_FIND(sendfile);
1263 return handle->fns->sendfile(handle, tofd, fromfsp, header, offset,
1264 count);
1265 }
1266
1267 ssize_t smb_vfs_call_recvfile(struct vfs_handle_struct *handle, int fromfd,
1268 files_struct *tofsp, SMB_OFF_T offset,
1269 size_t count)
1270 {
1271 VFS_FIND(recvfile);
1272 return handle->fns->recvfile(handle, fromfd, tofsp, offset, count);
1273 }
1274
1275 int smb_vfs_call_rename(struct vfs_handle_struct *handle,
1276 const struct smb_filename *smb_fname_src,
1277 const struct smb_filename *smb_fname_dst)
1278 {
1279 VFS_FIND(rename);
1280 return handle->fns->rename(handle, smb_fname_src, smb_fname_dst);
1281 }
1282
1283 int smb_vfs_call_fsync(struct vfs_handle_struct *handle,
1284 struct files_struct *fsp)
1285 {
1286 VFS_FIND(fsync);
1287 return handle->fns->fsync(handle, fsp);
1288 }
1289
1290 int smb_vfs_call_stat(struct vfs_handle_struct *handle,
1291 struct smb_filename *smb_fname)
1292 {
1293 VFS_FIND(stat);
1294 return handle->fns->stat(handle, smb_fname);
1295 }
1296
1297 int smb_vfs_call_fstat(struct vfs_handle_struct *handle,
1298 struct files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1299 {
1300 VFS_FIND(fstat);
1301 return handle->fns->fstat(handle, fsp, sbuf);
1302 }
1303
1304 int smb_vfs_call_lstat(struct vfs_handle_struct *handle,
1305 struct smb_filename *smb_filename)
1306 {
1307 VFS_FIND(lstat);
1308 return handle->fns->lstat(handle, smb_filename);
1309 }
1310
1311 uint64_t smb_vfs_call_get_alloc_size(struct vfs_handle_struct *handle,
1312 struct files_struct *fsp,
1313 const SMB_STRUCT_STAT *sbuf)
1314 {
1315 VFS_FIND(get_alloc_size);
1316 return handle->fns->get_alloc_size(handle, fsp, sbuf);
1317 }
1318
1319 int smb_vfs_call_unlink(struct vfs_handle_struct *handle,
1320 const struct smb_filename *smb_fname)
1321 {
1322 VFS_FIND(unlink);
1323 return handle->fns->unlink(handle, smb_fname);
1324 }
1325
1326 int smb_vfs_call_chmod(struct vfs_handle_struct *handle, const char *path,
1327 mode_t mode)
1328 {
1329 VFS_FIND(chmod);
1330 return handle->fns->chmod(handle, path, mode);
1331 }
1332
1333 int smb_vfs_call_fchmod(struct vfs_handle_struct *handle,
1334 struct files_struct *fsp, mode_t mode)
1335 {
1336 VFS_FIND(fchmod);
1337 return handle->fns->fchmod(handle, fsp, mode);
1338 }
1339
1340 int smb_vfs_call_chown(struct vfs_handle_struct *handle, const char *path,
1341 uid_t uid, gid_t gid)
1342 {
1343 VFS_FIND(chown);
1344 return handle->fns->chown(handle, path, uid, gid);
1345 }
1346
1347 int smb_vfs_call_fchown(struct vfs_handle_struct *handle,
1348 struct files_struct *fsp, uid_t uid, gid_t gid)
1349 {
1350 VFS_FIND(fchown);
1351 return handle->fns->fchown(handle, fsp, uid, gid);
1352 }
1353
1354 int smb_vfs_call_lchown(struct vfs_handle_struct *handle, const char *path,
1355 uid_t uid, gid_t gid)
1356 {
1357 VFS_FIND(lchown);
1358 return handle->fns->lchown(handle, path, uid, gid);
1359 }
1360
1361 int smb_vfs_call_chdir(struct vfs_handle_struct *handle, const char *path)
1362 {
1363 VFS_FIND(chdir);
1364 return handle->fns->chdir(handle, path);
1365 }
1366
1367 char *smb_vfs_call_getwd(struct vfs_handle_struct *handle, char *buf)
1368 {
1369 VFS_FIND(getwd);
1370 return handle->fns->getwd(handle, buf);
1371 }
1372
1373 int smb_vfs_call_ntimes(struct vfs_handle_struct *handle,
1374 const struct smb_filename *smb_fname,
1375 struct smb_file_time *ft)
1376 {
1377 VFS_FIND(ntimes);
1378 return handle->fns->ntimes(handle, smb_fname, ft);
1379 }
1380
1381 int smb_vfs_call_ftruncate(struct vfs_handle_struct *handle,
1382 struct files_struct *fsp, SMB_OFF_T offset)
1383 {
1384 VFS_FIND(ftruncate);
1385 return handle->fns->ftruncate(handle, fsp, offset);
1386 }
1387
1388 int smb_vfs_call_kernel_flock(struct vfs_handle_struct *handle,
1389 struct files_struct *fsp, uint32 share_mode)
1390 {
1391 VFS_FIND(kernel_flock);
1392 return handle->fns->kernel_flock(handle, fsp, share_mode);
1393 }
1394
1395 int smb_vfs_call_linux_setlease(struct vfs_handle_struct *handle,
1396 struct files_struct *fsp, int leasetype)
1397 {
1398 VFS_FIND(linux_setlease);
1399 return handle->fns->linux_setlease(handle, fsp, leasetype);
1400 }
1401
1402 int smb_vfs_call_symlink(struct vfs_handle_struct *handle, const char *oldpath,
1403 const char *newpath)
1404 {
1405 VFS_FIND(symlink);
1406 return handle->fns->symlink(handle, oldpath, newpath);
1407 }
1408
1409 int smb_vfs_call_vfs_readlink(struct vfs_handle_struct *handle,
1410 const char *path, char *buf, size_t bufsiz)
1411 {
1412 VFS_FIND(vfs_readlink);
1413 return handle->fns->vfs_readlink(handle, path, buf, bufsiz);
1414 }
1415
1416 int smb_vfs_call_link(struct vfs_handle_struct *handle, const char *oldpath,
1417 const char *newpath)
1418 {
1419 VFS_FIND(link);
1420 return handle->fns->link(handle, oldpath, newpath);
1421 }
1422
1423 int smb_vfs_call_mknod(struct vfs_handle_struct *handle, const char *path,
1424 mode_t mode, SMB_DEV_T dev)
1425 {
1426 VFS_FIND(mknod);
1427 return handle->fns->mknod(handle, path, mode, dev);
1428 }
1429
1430 char *smb_vfs_call_realpath(struct vfs_handle_struct *handle,
1431 const char *path, char *resolved_path)
1432 {
1433 VFS_FIND(realpath);
1434 return handle->fns->realpath(handle, path, resolved_path);
1435 }
1436
1437 NTSTATUS smb_vfs_call_notify_watch(struct vfs_handle_struct *handle,
1438 struct sys_notify_context *ctx,
1439 struct notify_entry *e,
1440 void (*callback)(struct sys_notify_context *ctx,
1441 void *private_data,
1442 struct notify_event *ev),
1443 void *private_data, void *handle_p)
1444 {
1445 VFS_FIND(notify_watch);
1446 return handle->fns->notify_watch(handle, ctx, e, callback,
1447 private_data, handle_p);
1448 }
1449
1450 int smb_vfs_call_chflags(struct vfs_handle_struct *handle, const char *path,
1451 unsigned int flags)
1452 {
1453 VFS_FIND(chflags);
1454 return handle->fns->chflags(handle, path, flags);
1455 }
1456
1457 struct file_id smb_vfs_call_file_id_create(struct vfs_handle_struct *handle,
1458 const SMB_STRUCT_STAT *sbuf)
1459 {
1460 VFS_FIND(file_id_create);
1461 return handle->fns->file_id_create(handle, sbuf);
1462 }
1463
1464 NTSTATUS smb_vfs_call_streaminfo(struct vfs_handle_struct *handle,
1465 struct files_struct *fsp,
1466 const char *fname,
1467 TALLOC_CTX *mem_ctx,
1468 unsigned int *num_streams,
1469 struct stream_struct **streams)
1470 {
1471 VFS_FIND(streaminfo);
1472 return handle->fns->streaminfo(handle, fsp, fname, mem_ctx,
1473 num_streams, streams);
1474 }
1475
1476 int smb_vfs_call_get_real_filename(struct vfs_handle_struct *handle,
1477 const char *path, const char *name,
1478 TALLOC_CTX *mem_ctx, char **found_name)
1479 {
1480 VFS_FIND(get_real_filename);
1481 return handle->fns->get_real_filename(handle, path, name, mem_ctx,
1482 found_name);
1483 }
1484
1485 const char *smb_vfs_call_connectpath(struct vfs_handle_struct *handle,
1486 const char *filename)
1487 {
1488 VFS_FIND(connectpath);
1489 return handle->fns->connectpath(handle, filename);
1490 }
1491
1492 bool smb_vfs_call_strict_lock(struct vfs_handle_struct *handle,
1493 struct files_struct *fsp,
1494 struct lock_struct *plock)
1495 {
1496 VFS_FIND(strict_lock);
1497 return handle->fns->strict_lock(handle, fsp, plock);
1498 }
1499
1500 void smb_vfs_call_strict_unlock(struct vfs_handle_struct *handle,
1501 struct files_struct *fsp,
1502 struct lock_struct *plock)
1503 {
1504 VFS_FIND(strict_unlock);
1505 handle->fns->strict_unlock(handle, fsp, plock);
1506 }
1507
1508 NTSTATUS smb_vfs_call_translate_name(struct vfs_handle_struct *handle,
1509 char **mapped_name)
1510 {
1511 VFS_FIND(translate_name);
1512 return handle->fns->translate_name(handle, mapped_name);
1513 }
1514
1515 NTSTATUS smb_vfs_call_fget_nt_acl(struct vfs_handle_struct *handle,
1516 struct files_struct *fsp,
1517 uint32 security_info,
1518 struct security_descriptor **ppdesc)
1519 {
1520 VFS_FIND(fget_nt_acl);
1521 return handle->fns->fget_nt_acl(handle, fsp, security_info,
1522 ppdesc);
1523 }
1524
1525 NTSTATUS smb_vfs_call_get_nt_acl(struct vfs_handle_struct *handle,
1526 const char *name,
1527 uint32 security_info,
1528 struct security_descriptor **ppdesc)
1529 {
1530 VFS_FIND(get_nt_acl);
1531 return handle->fns->get_nt_acl(handle, name, security_info, ppdesc);
1532 }
1533
1534 NTSTATUS smb_vfs_call_fset_nt_acl(struct vfs_handle_struct *handle,
1535 struct files_struct *fsp,
1536 uint32 security_info_sent,
1537 const struct security_descriptor *psd)
1538 {
1539 VFS_FIND(fset_nt_acl);
1540 return handle->fns->fset_nt_acl(handle, fsp, security_info_sent, psd);
1541 }
1542
1543 int smb_vfs_call_chmod_acl(struct vfs_handle_struct *handle, const char *name,
1544 mode_t mode)
1545 {
1546 VFS_FIND(chmod_acl);
1547 return handle->fns->chmod_acl(handle, name, mode);
1548 }
1549
1550 int smb_vfs_call_fchmod_acl(struct vfs_handle_struct *handle,
1551 struct files_struct *fsp, mode_t mode)
1552 {
1553 VFS_FIND(fchmod_acl);
1554 return handle->fns->fchmod_acl(handle, fsp, mode);
1555 }
1556
1557 int smb_vfs_call_sys_acl_get_entry(struct vfs_handle_struct *handle,
1558 SMB_ACL_T theacl, int entry_id,
1559 SMB_ACL_ENTRY_T *entry_p)
1560 {
1561 VFS_FIND(sys_acl_get_entry);
1562 return handle->fns->sys_acl_get_entry(handle, theacl, entry_id,
1563 entry_p);
1564 }
1565
1566 int smb_vfs_call_sys_acl_get_tag_type(struct vfs_handle_struct *handle,
1567 SMB_ACL_ENTRY_T entry_d,
1568 SMB_ACL_TAG_T *tag_type_p)
1569 {
1570 VFS_FIND(sys_acl_get_tag_type);
1571 return handle->fns->sys_acl_get_tag_type(handle, entry_d, tag_type_p);
1572 }
1573
1574 int smb_vfs_call_sys_acl_get_permset(struct vfs_handle_struct *handle,
1575 SMB_ACL_ENTRY_T entry_d,
1576 SMB_ACL_PERMSET_T *permset_p)
1577 {
1578 VFS_FIND(sys_acl_get_permset);
1579 return handle->fns->sys_acl_get_permset(handle, entry_d, permset_p);
1580 }
1581
1582 void * smb_vfs_call_sys_acl_get_qualifier(struct vfs_handle_struct *handle,
1583 SMB_ACL_ENTRY_T entry_d)
1584 {
1585 VFS_FIND(sys_acl_get_qualifier);
1586 return handle->fns->sys_acl_get_qualifier(handle, entry_d);
1587 }
1588
1589 SMB_ACL_T smb_vfs_call_sys_acl_get_file(struct vfs_handle_struct *handle,
1590 const char *path_p,
1591 SMB_ACL_TYPE_T type)
1592 {
1593 VFS_FIND(sys_acl_get_file);
1594 return handle->fns->sys_acl_get_file(handle, path_p, type);
1595 }
1596
1597 SMB_ACL_T smb_vfs_call_sys_acl_get_fd(struct vfs_handle_struct *handle,
1598 struct files_struct *fsp)
1599 {
1600 VFS_FIND(sys_acl_get_fd);
1601 return handle->fns->sys_acl_get_fd(handle, fsp);
1602 }
1603
1604 int smb_vfs_call_sys_acl_clear_perms(struct vfs_handle_struct *handle,
1605 SMB_ACL_PERMSET_T permset)
1606 {
1607 VFS_FIND(sys_acl_clear_perms);
1608 return handle->fns->sys_acl_clear_perms(handle, permset);
1609 }
1610
1611 int smb_vfs_call_sys_acl_add_perm(struct vfs_handle_struct *handle,
1612 SMB_ACL_PERMSET_T permset,
1613 SMB_ACL_PERM_T perm)
1614 {
1615 VFS_FIND(sys_acl_add_perm);
1616 return handle->fns->sys_acl_add_perm(handle, permset, perm);
1617 }
1618
1619 char * smb_vfs_call_sys_acl_to_text(struct vfs_handle_struct *handle,
1620 SMB_ACL_T theacl, ssize_t *plen)
1621 {
1622 VFS_FIND(sys_acl_to_text);
1623 return handle->fns->sys_acl_to_text(handle, theacl, plen);
1624 }
1625
1626 SMB_ACL_T smb_vfs_call_sys_acl_init(struct vfs_handle_struct *handle,
1627 int count)
1628 {
1629 VFS_FIND(sys_acl_init);
1630 return handle->fns->sys_acl_init(handle, count);
1631 }
1632
1633 int smb_vfs_call_sys_acl_create_entry(struct vfs_handle_struct *handle,
1634 SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry)
1635 {
1636 VFS_FIND(sys_acl_create_entry);
1637 return handle->fns->sys_acl_create_entry(handle, pacl, pentry);
1638 }
1639
1640 int smb_vfs_call_sys_acl_set_tag_type(struct vfs_handle_struct *handle,
1641 SMB_ACL_ENTRY_T entry,
1642 SMB_ACL_TAG_T tagtype)
1643 {
1644 VFS_FIND(sys_acl_set_tag_type);
1645 return handle->fns->sys_acl_set_tag_type(handle, entry, tagtype);
1646 }
1647
1648 int smb_vfs_call_sys_acl_set_qualifier(struct vfs_handle_struct *handle,
1649 SMB_ACL_ENTRY_T entry, void *qual)
1650 {
1651 VFS_FIND(sys_acl_set_qualifier);
1652 return handle->fns->sys_acl_set_qualifier(handle, entry, qual);
1653 }
1654
1655 int smb_vfs_call_sys_acl_set_permset(struct vfs_handle_struct *handle,
1656 SMB_ACL_ENTRY_T entry,
1657 SMB_ACL_PERMSET_T permset)
1658 {
1659 VFS_FIND(sys_acl_set_permset);
1660 return handle->fns->sys_acl_set_permset(handle, entry, permset);
1661 }
1662
1663 int smb_vfs_call_sys_acl_valid(struct vfs_handle_struct *handle,
1664 SMB_ACL_T theacl)
1665 {
1666 VFS_FIND(sys_acl_valid);
1667 return handle->fns->sys_acl_valid(handle, theacl);
1668 }
1669
1670 int smb_vfs_call_sys_acl_set_file(struct vfs_handle_struct *handle,
1671 const char *name, SMB_ACL_TYPE_T acltype,
1672 SMB_ACL_T theacl)
1673 {
1674 VFS_FIND(sys_acl_set_file);
1675 return handle->fns->sys_acl_set_file(handle, name, acltype, theacl);
1676 }
1677
1678 int smb_vfs_call_sys_acl_set_fd(struct vfs_handle_struct *handle,
1679 struct files_struct *fsp, SMB_ACL_T theacl)
1680 {
1681 VFS_FIND(sys_acl_set_fd);
1682 return handle->fns->sys_acl_set_fd(handle, fsp, theacl);
1683 }
1684
1685 int smb_vfs_call_sys_acl_delete_def_file(struct vfs_handle_struct *handle,
1686 const char *path)
1687 {
1688 VFS_FIND(sys_acl_delete_def_file);
1689 return handle->fns->sys_acl_delete_def_file(handle, path);
1690 }
1691
1692 int smb_vfs_call_sys_acl_get_perm(struct vfs_handle_struct *handle,
1693 SMB_ACL_PERMSET_T permset,
1694 SMB_ACL_PERM_T perm)
1695 {
1696 VFS_FIND(sys_acl_get_perm);
1697 return handle->fns->sys_acl_get_perm(handle, permset, perm);
1698 }
1699
1700 int smb_vfs_call_sys_acl_free_text(struct vfs_handle_struct *handle,
1701 char *text)
1702 {
1703 VFS_FIND(sys_acl_free_text);
1704 return handle->fns->sys_acl_free_text(handle, text);
1705 }
1706
1707 int smb_vfs_call_sys_acl_free_acl(struct vfs_handle_struct *handle,
1708 SMB_ACL_T posix_acl)
1709 {
1710 VFS_FIND(sys_acl_free_acl);
1711 return handle->fns->sys_acl_free_acl(handle, posix_acl);
1712 }
1713
1714 int smb_vfs_call_sys_acl_free_qualifier(struct vfs_handle_struct *handle,
1715 void *qualifier, SMB_ACL_TAG_T tagtype)
1716 {
1717 VFS_FIND(sys_acl_free_qualifier);
1718 return handle->fns->sys_acl_free_qualifier(handle, qualifier, tagtype);
1719 }
1720
1721 ssize_t smb_vfs_call_getxattr(struct vfs_handle_struct *handle,
1722 const char *path, const char *name, void *value,
1723 size_t size)
1724 {
1725 VFS_FIND(getxattr);
1726 return handle->fns->getxattr(handle, path, name, value, size);
1727 }
1728
1729 ssize_t smb_vfs_call_lgetxattr(struct vfs_handle_struct *handle,
1730 const char *path, const char *name, void *value,
1731 size_t size)
1732 {
1733 VFS_FIND(lgetxattr);
1734 return handle->fns->lgetxattr(handle, path, name, value, size);
1735 }
1736
1737 ssize_t smb_vfs_call_fgetxattr(struct vfs_handle_struct *handle,
1738 struct files_struct *fsp, const char *name,
1739 void *value, size_t size)
1740 {
1741 VFS_FIND(fgetxattr);
1742 return handle->fns->fgetxattr(handle, fsp, name, value, size);
1743 }
1744
1745 ssize_t smb_vfs_call_listxattr(struct vfs_handle_struct *handle,
1746 const char *path, char *list, size_t size)
1747 {
1748 VFS_FIND(listxattr);
1749 return handle->fns->listxattr(handle, path, list, size);
1750 }
1751
1752 ssize_t smb_vfs_call_llistxattr(struct vfs_handle_struct *handle,
1753 const char *path, char *list, size_t size)
1754 {
1755 VFS_FIND(llistxattr);
1756 return handle->fns->llistxattr(handle, path, list, size);
1757 }
1758
1759 ssize_t smb_vfs_call_flistxattr(struct vfs_handle_struct *handle,
1760 struct files_struct *fsp, char *list,
1761 size_t size)
1762 {
1763 VFS_FIND(flistxattr);
1764 return handle->fns->flistxattr(handle, fsp, list, size);
1765 }
1766
1767 int smb_vfs_call_removexattr(struct vfs_handle_struct *handle,
1768 const char *path, const char *name)
1769 {
1770 VFS_FIND(removexattr);
1771 return handle->fns->removexattr(handle, path, name);
1772 }
1773
1774 int smb_vfs_call_lremovexattr(struct vfs_handle_struct *handle,
1775 const char *path, const char *name)
1776 {
1777 VFS_FIND(lremovexattr);
1778 return handle->fns->lremovexattr(handle, path, name);
1779 }
1780
1781 int smb_vfs_call_fremovexattr(struct vfs_handle_struct *handle,
1782 struct files_struct *fsp, const char *name)
1783 {
1784 VFS_FIND(fremovexattr);
1785 return handle->fns->fremovexattr(handle, fsp, name);
1786 }
1787
1788 int smb_vfs_call_setxattr(struct vfs_handle_struct *handle, const char *path,
1789 const char *name, const void *value, size_t size,
1790 int flags)
1791 {
1792 VFS_FIND(setxattr);
1793 return handle->fns->setxattr(handle, path, name, value, size, flags);
1794 }
1795
1796 int smb_vfs_call_lsetxattr(struct vfs_handle_struct *handle, const char *path,
1797 const char *name, const void *value, size_t size,
1798 int flags)
1799 {
1800 VFS_FIND(lsetxattr);
1801 return handle->fns->lsetxattr(handle, path, name, value, size, flags);
1802 }
1803
1804 int smb_vfs_call_fsetxattr(struct vfs_handle_struct *handle,
1805 struct files_struct *fsp, const char *name,
1806 const void *value, size_t size, int flags)
1807 {
1808 VFS_FIND(fsetxattr);
1809 return handle->fns->fsetxattr(handle, fsp, name, value, size, flags);
1810 }
1811
1812 int smb_vfs_call_aio_read(struct vfs_handle_struct *handle,
1813 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
1814 {
1815 VFS_FIND(aio_read);
1816 return handle->fns->aio_read(handle, fsp, aiocb);
1817 }
1818
1819 int smb_vfs_call_aio_write(struct vfs_handle_struct *handle,
1820 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
1821 {
1822 VFS_FIND(aio_write);
1823 return handle->fns->aio_write(handle, fsp, aiocb);
1824 }
1825
1826 ssize_t smb_vfs_call_aio_return_fn(struct vfs_handle_struct *handle,
1827 struct files_struct *fsp,
1828 SMB_STRUCT_AIOCB *aiocb)
1829 {
1830 VFS_FIND(aio_return_fn);
1831 return handle->fns->aio_return_fn(handle, fsp, aiocb);
1832 }
1833
1834 int smb_vfs_call_aio_cancel(struct vfs_handle_struct *handle,
1835 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
1836 {
1837 VFS_FIND(aio_cancel);
1838 return handle->fns->aio_cancel(handle, fsp, aiocb);
1839 }
1840
1841 int smb_vfs_call_aio_error_fn(struct vfs_handle_struct *handle,
1842 struct files_struct *fsp,
1843 SMB_STRUCT_AIOCB *aiocb)
1844 {
1845 VFS_FIND(aio_error_fn);
1846 return handle->fns->aio_error_fn(handle, fsp, aiocb);
1847 }
1848
1849 int smb_vfs_call_aio_fsync(struct vfs_handle_struct *handle,
1850 struct files_struct *fsp, int op,
1851 SMB_STRUCT_AIOCB *aiocb)
1852 {
1853 VFS_FIND(aio_fsync);
1854 return handle->fns->aio_fsync(handle, fsp, op, aiocb);
1855 }
1856
1857 int smb_vfs_call_aio_suspend(struct vfs_handle_struct *handle,
1858 struct files_struct *fsp,
1859 const SMB_STRUCT_AIOCB * const aiocb[], int n,
1860 const struct timespec *timeout)
1861 {
1862 VFS_FIND(aio_suspend);
1863 return handle->fns->aio_suspend(handle, fsp, aiocb, n, timeout);
1864 }
1865
1866 bool smb_vfs_call_aio_force(struct vfs_handle_struct *handle,
1867 struct files_struct *fsp)
1868 {
1869 VFS_FIND(aio_force);
1870 return handle->fns->aio_force(handle, fsp);
1871 }
1872
1873 bool smb_vfs_call_is_offline(struct vfs_handle_struct *handle,
1874 const char *path, SMB_STRUCT_STAT *sbuf)
1875 {
1876 VFS_FIND(is_offline);
1877 return handle->fns->is_offline(handle, path, sbuf);
1878 }
1879
1880 int smb_vfs_call_set_offline(struct vfs_handle_struct *handle,
1881 const char *path)
1882 {
1883 VFS_FIND(set_offline);
1884 return handle->fns->set_offline(handle, path);
1885 }
aatanasov's samba4 branch