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[Samba/gebeck_regimport.git] / source3 / smbd / vfs.c
blobd4e9f02a69de1629630b2d7006d315b72f967fbc
1 /*
2 Unix SMB/Netbios implementation.
3 Version 1.9.
4 VFS initialisation and support functions
5 Copyright (C) Tim Potter 1999
6 Copyright (C) Alexander Bokovoy 2002
7 Copyright (C) James Peach 2006
8 Copyright (C) Volker Lendecke 2009
9
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
14
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>.
22
23 This work was sponsored by Optifacio Software Services, Inc.
24 */
25
26 #include "includes.h"
27 #include "smbd/globals.h"
28
29 #undef DBGC_CLASS
30 #define DBGC_CLASS DBGC_VFS
31
32 static_decl_vfs;
33
34 struct vfs_init_function_entry {
35 char *name;
36 struct vfs_init_function_entry *prev, *next;
37 const struct vfs_fn_pointers *fns;
38 };
39
40 /****************************************************************************
41 maintain the list of available backends
42 ****************************************************************************/
43
44 static struct vfs_init_function_entry *vfs_find_backend_entry(const char *name)
45 {
46 struct vfs_init_function_entry *entry = backends;
47
48 DEBUG(10, ("vfs_find_backend_entry called for %s\n", name));
49
50 while(entry) {
51 if (strcmp(entry->name, name)==0) return entry;
52 entry = entry->next;
53 }
54
55 return NULL;
56 }
57
58 NTSTATUS smb_register_vfs(int version, const char *name,
59 const struct vfs_fn_pointers *fns)
60 {
61 struct vfs_init_function_entry *entry = backends;
62
63 if ((version != SMB_VFS_INTERFACE_VERSION)) {
64 DEBUG(0, ("Failed to register vfs module.\n"
65 "The module was compiled against SMB_VFS_INTERFACE_VERSION %d,\n"
66 "current SMB_VFS_INTERFACE_VERSION is %d.\n"
67 "Please recompile against the current Samba Version!\n",
68 version, SMB_VFS_INTERFACE_VERSION));
69 return NT_STATUS_OBJECT_TYPE_MISMATCH;
70 }
71
72 if (!name || !name[0]) {
73 DEBUG(0,("smb_register_vfs() called with NULL pointer or empty name!\n"));
74 return NT_STATUS_INVALID_PARAMETER;
75 }
76
77 if (vfs_find_backend_entry(name)) {
78 DEBUG(0,("VFS module %s already loaded!\n", name));
79 return NT_STATUS_OBJECT_NAME_COLLISION;
80 }
81
82 entry = SMB_XMALLOC_P(struct vfs_init_function_entry);
83 entry->name = smb_xstrdup(name);
84 entry->fns = fns;
85
86 DLIST_ADD(backends, entry);
87 DEBUG(5, ("Successfully added vfs backend '%s'\n", name));
88 return NT_STATUS_OK;
89 }
90
91 /****************************************************************************
92 initialise default vfs hooks
93 ****************************************************************************/
94
95 static void vfs_init_default(connection_struct *conn)
96 {
97 DEBUG(3, ("Initialising default vfs hooks\n"));
98 vfs_init_custom(conn, DEFAULT_VFS_MODULE_NAME);
99 }
100
101 /****************************************************************************
102 initialise custom vfs hooks
103 ****************************************************************************/
104
105 bool vfs_init_custom(connection_struct *conn, const char *vfs_object)
106 {
107 char *module_path = NULL;
108 char *module_name = NULL;
109 char *module_param = NULL, *p;
110 vfs_handle_struct *handle;
111 const struct vfs_init_function_entry *entry;
112
113 if (!conn||!vfs_object||!vfs_object[0]) {
114 DEBUG(0, ("vfs_init_custom() called with NULL pointer or "
115 "empty vfs_object!\n"));
116 return False;
117 }
118
119 if(!backends) {
120 static_init_vfs;
121 }
122
123 DEBUG(3, ("Initialising custom vfs hooks from [%s]\n", vfs_object));
124
125 module_path = smb_xstrdup(vfs_object);
126
127 p = strchr_m(module_path, ':');
128
129 if (p) {
130 *p = 0;
131 module_param = p+1;
132 trim_char(module_param, ' ', ' ');
133 }
134
135 trim_char(module_path, ' ', ' ');
136
137 module_name = smb_xstrdup(module_path);
138
139 if ((module_name[0] == '/') &&
140 (strcmp(module_path, DEFAULT_VFS_MODULE_NAME) != 0)) {
141
142 /*
143 * Extract the module name from the path. Just use the base
144 * name of the last path component.
145 */
146
147 SAFE_FREE(module_name);
148 module_name = smb_xstrdup(strrchr_m(module_path, '/')+1);
149
150 p = strchr_m(module_name, '.');
151
152 if (p != NULL) {
153 *p = '\0';
154 }
155 }
156
157 /* First, try to load the module with the new module system */
158 entry = vfs_find_backend_entry(module_name);
159 if (!entry) {
160 NTSTATUS status;
161
162 DEBUG(5, ("vfs module [%s] not loaded - trying to load...\n",
163 vfs_object));
164
165 status = smb_probe_module("vfs", module_path);
166 if (!NT_STATUS_IS_OK(status)) {
167 DEBUG(0, ("error probing vfs module '%s': %s\n",
168 module_path, nt_errstr(status)));
169 goto fail;
170 }
171
172 entry = vfs_find_backend_entry(module_name);
173 if (!entry) {
174 DEBUG(0,("Can't find a vfs module [%s]\n",vfs_object));
175 goto fail;
176 }
177 }
178
179 DEBUGADD(5,("Successfully loaded vfs module [%s] with the new modules system\n", vfs_object));
180
181 handle = TALLOC_ZERO_P(conn, vfs_handle_struct);
182 if (!handle) {
183 DEBUG(0,("TALLOC_ZERO() failed!\n"));
184 goto fail;
185 }
186 handle->conn = conn;
187 handle->fns = entry->fns;
188 if (module_param) {
189 handle->param = talloc_strdup(conn, module_param);
190 }
191 DLIST_ADD(conn->vfs_handles, handle);
192
193 SAFE_FREE(module_path);
194 SAFE_FREE(module_name);
195 return True;
196
197 fail:
198 SAFE_FREE(module_path);
199 SAFE_FREE(module_name);
200 return False;
201 }
202
203 /*****************************************************************
204 Allow VFS modules to extend files_struct with VFS-specific state.
205 This will be ok for small numbers of extensions, but might need to
206 be refactored if it becomes more widely used.
207 ******************************************************************/
208
209 #define EXT_DATA_AREA(e) ((uint8 *)(e) + sizeof(struct vfs_fsp_data))
210
211 void *vfs_add_fsp_extension_notype(vfs_handle_struct *handle,
212 files_struct *fsp, size_t ext_size,
213 void (*destroy_fn)(void *p_data))
214 {
215 struct vfs_fsp_data *ext;
216 void * ext_data;
217
218 /* Prevent VFS modules adding multiple extensions. */
219 if ((ext_data = vfs_fetch_fsp_extension(handle, fsp))) {
220 return ext_data;
221 }
222
223 ext = (struct vfs_fsp_data *)TALLOC_ZERO(
224 handle->conn, sizeof(struct vfs_fsp_data) + ext_size);
225 if (ext == NULL) {
226 return NULL;
227 }
228
229 ext->owner = handle;
230 ext->next = fsp->vfs_extension;
231 ext->destroy = destroy_fn;
232 fsp->vfs_extension = ext;
233 return EXT_DATA_AREA(ext);
234 }
235
236 void vfs_remove_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
237 {
238 struct vfs_fsp_data *curr;
239 struct vfs_fsp_data *prev;
240
241 for (curr = fsp->vfs_extension, prev = NULL;
242 curr;
243 prev = curr, curr = curr->next) {
244 if (curr->owner == handle) {
245 if (prev) {
246 prev->next = curr->next;
247 } else {
248 fsp->vfs_extension = curr->next;
249 }
250 if (curr->destroy) {
251 curr->destroy(EXT_DATA_AREA(curr));
252 }
253 TALLOC_FREE(curr);
254 return;
255 }
256 }
257 }
258
259 void *vfs_memctx_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
260 {
261 struct vfs_fsp_data *head;
262
263 for (head = fsp->vfs_extension; head; head = head->next) {
264 if (head->owner == handle) {
265 return head;
266 }
267 }
268
269 return NULL;
270 }
271
272 void *vfs_fetch_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
273 {
274 struct vfs_fsp_data *head;
275
276 head = (struct vfs_fsp_data *)vfs_memctx_fsp_extension(handle, fsp);
277 if (head != NULL) {
278 return EXT_DATA_AREA(head);
279 }
280
281 return NULL;
282 }
283
284 #undef EXT_DATA_AREA
285
286 /*****************************************************************
287 Generic VFS init.
288 ******************************************************************/
289
290 bool smbd_vfs_init(connection_struct *conn)
291 {
292 const char **vfs_objects;
293 unsigned int i = 0;
294 int j = 0;
295
296 /* Normal share - initialise with disk access functions */
297 vfs_init_default(conn);
298 vfs_objects = lp_vfs_objects(SNUM(conn));
299
300 /* Override VFS functions if 'vfs object' was not specified*/
301 if (!vfs_objects || !vfs_objects[0])
302 return True;
303
304 for (i=0; vfs_objects[i] ;) {
305 i++;
306 }
307
308 for (j=i-1; j >= 0; j--) {
309 if (!vfs_init_custom(conn, vfs_objects[j])) {
310 DEBUG(0, ("smbd_vfs_init: vfs_init_custom failed for %s\n", vfs_objects[j]));
311 return False;
312 }
313 }
314 return True;
315 }
316
317 /*******************************************************************
318 Check if a file exists in the vfs.
319 ********************************************************************/
320
321 NTSTATUS vfs_file_exist(connection_struct *conn, struct smb_filename *smb_fname)
322 {
323 /* Only return OK if stat was successful and S_ISREG */
324 if ((SMB_VFS_STAT(conn, smb_fname) != -1) &&
325 S_ISREG(smb_fname->st.st_ex_mode)) {
326 return NT_STATUS_OK;
327 }
328
329 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
330 }
331
332 /****************************************************************************
333 Read data from fsp on the vfs. (note: EINTR re-read differs from vfs_write_data)
334 ****************************************************************************/
335
336 ssize_t vfs_read_data(files_struct *fsp, char *buf, size_t byte_count)
337 {
338 size_t total=0;
339
340 while (total < byte_count)
341 {
342 ssize_t ret = SMB_VFS_READ(fsp, buf + total,
343 byte_count - total);
344
345 if (ret == 0) return total;
346 if (ret == -1) {
347 if (errno == EINTR)
348 continue;
349 else
350 return -1;
351 }
352 total += ret;
353 }
354 return (ssize_t)total;
355 }
356
357 ssize_t vfs_pread_data(files_struct *fsp, char *buf,
358 size_t byte_count, SMB_OFF_T offset)
359 {
360 size_t total=0;
361
362 while (total < byte_count)
363 {
364 ssize_t ret = SMB_VFS_PREAD(fsp, buf + total,
365 byte_count - total, offset + total);
366
367 if (ret == 0) return total;
368 if (ret == -1) {
369 if (errno == EINTR)
370 continue;
371 else
372 return -1;
373 }
374 total += ret;
375 }
376 return (ssize_t)total;
377 }
378
379 /****************************************************************************
380 Write data to a fd on the vfs.
381 ****************************************************************************/
382
383 ssize_t vfs_write_data(struct smb_request *req,
384 files_struct *fsp,
385 const char *buffer,
386 size_t N)
387 {
388 size_t total=0;
389 ssize_t ret;
390
391 if (req && req->unread_bytes) {
392 SMB_ASSERT(req->unread_bytes == N);
393 /* VFS_RECVFILE must drain the socket
394 * before returning. */
395 req->unread_bytes = 0;
396 return SMB_VFS_RECVFILE(smbd_server_fd(),
397 fsp,
398 (SMB_OFF_T)-1,
399 N);
400 }
401
402 while (total < N) {
403 ret = SMB_VFS_WRITE(fsp, buffer + total, N - total);
404
405 if (ret == -1)
406 return -1;
407 if (ret == 0)
408 return total;
409
410 total += ret;
411 }
412 return (ssize_t)total;
413 }
414
415 ssize_t vfs_pwrite_data(struct smb_request *req,
416 files_struct *fsp,
417 const char *buffer,
418 size_t N,
419 SMB_OFF_T offset)
420 {
421 size_t total=0;
422 ssize_t ret;
423
424 if (req && req->unread_bytes) {
425 SMB_ASSERT(req->unread_bytes == N);
426 /* VFS_RECVFILE must drain the socket
427 * before returning. */
428 req->unread_bytes = 0;
429 return SMB_VFS_RECVFILE(smbd_server_fd(),
430 fsp,
431 offset,
432 N);
433 }
434
435 while (total < N) {
436 ret = SMB_VFS_PWRITE(fsp, buffer + total, N - total,
437 offset + total);
438
439 if (ret == -1)
440 return -1;
441 if (ret == 0)
442 return total;
443
444 total += ret;
445 }
446 return (ssize_t)total;
447 }
448 /****************************************************************************
449 An allocate file space call using the vfs interface.
450 Allocates space for a file from a filedescriptor.
451 Returns 0 on success, -1 on failure.
452 ****************************************************************************/
453
454 int vfs_allocate_file_space(files_struct *fsp, uint64_t len)
455 {
456 int ret;
457 SMB_STRUCT_STAT st;
458 connection_struct *conn = fsp->conn;
459 uint64_t space_avail;
460 uint64_t bsize,dfree,dsize;
461
462 /*
463 * Actually try and commit the space on disk....
464 */
465
466 DEBUG(10,("vfs_allocate_file_space: file %s, len %.0f\n",
467 fsp_str_dbg(fsp), (double)len));
468
469 if (((SMB_OFF_T)len) < 0) {
470 DEBUG(0,("vfs_allocate_file_space: %s negative len "
471 "requested.\n", fsp_str_dbg(fsp)));
472 errno = EINVAL;
473 return -1;
474 }
475
476 ret = SMB_VFS_FSTAT(fsp, &st);
477 if (ret == -1)
478 return ret;
479
480 if (len == (uint64_t)st.st_ex_size)
481 return 0;
482
483 if (len < (uint64_t)st.st_ex_size) {
484 /* Shrink - use ftruncate. */
485
486 DEBUG(10,("vfs_allocate_file_space: file %s, shrink. Current "
487 "size %.0f\n", fsp_str_dbg(fsp),
488 (double)st.st_ex_size));
489
490 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_ALLOC_SHRINK);
491
492 flush_write_cache(fsp, SIZECHANGE_FLUSH);
493 if ((ret = SMB_VFS_FTRUNCATE(fsp, (SMB_OFF_T)len)) != -1) {
494 set_filelen_write_cache(fsp, len);
495 }
496
497 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_ALLOC_SHRINK);
498
499 return ret;
500 }
501
502 /* Grow - we need to test if we have enough space. */
503
504 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_ALLOC_GROW);
505 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_ALLOC_GROW);
506
507 if (!lp_strict_allocate(SNUM(fsp->conn)))
508 return 0;
509
510 len -= st.st_ex_size;
511 len /= 1024; /* Len is now number of 1k blocks needed. */
512 space_avail = get_dfree_info(conn, fsp->fsp_name->base_name, false,
513 &bsize, &dfree, &dsize);
514 if (space_avail == (uint64_t)-1) {
515 return -1;
516 }
517
518 DEBUG(10,("vfs_allocate_file_space: file %s, grow. Current size %.0f, "
519 "needed blocks = %.0f, space avail = %.0f\n",
520 fsp_str_dbg(fsp), (double)st.st_ex_size, (double)len,
521 (double)space_avail));
522
523 if (len > space_avail) {
524 errno = ENOSPC;
525 return -1;
526 }
527
528 return 0;
529 }
530
531 /****************************************************************************
532 A vfs set_filelen call.
533 set the length of a file from a filedescriptor.
534 Returns 0 on success, -1 on failure.
535 ****************************************************************************/
536
537 int vfs_set_filelen(files_struct *fsp, SMB_OFF_T len)
538 {
539 int ret;
540
541 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_SET_FILE_LEN);
542
543 DEBUG(10,("vfs_set_filelen: ftruncate %s to len %.0f\n",
544 fsp_str_dbg(fsp), (double)len));
545 flush_write_cache(fsp, SIZECHANGE_FLUSH);
546 if ((ret = SMB_VFS_FTRUNCATE(fsp, len)) != -1) {
547 set_filelen_write_cache(fsp, len);
548 notify_fname(fsp->conn, NOTIFY_ACTION_MODIFIED,
549 FILE_NOTIFY_CHANGE_SIZE
550 | FILE_NOTIFY_CHANGE_ATTRIBUTES,
551 fsp->fsp_name->base_name);
552 }
553
554 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_SET_FILE_LEN);
555
556 return ret;
557 }
558
559 /****************************************************************************
560 A vfs fill sparse call.
561 Writes zeros from the end of file to len, if len is greater than EOF.
562 Used only by strict_sync.
563 Returns 0 on success, -1 on failure.
564 ****************************************************************************/
565
566 #define SPARSE_BUF_WRITE_SIZE (32*1024)
567
568 int vfs_fill_sparse(files_struct *fsp, SMB_OFF_T len)
569 {
570 int ret;
571 SMB_STRUCT_STAT st;
572 SMB_OFF_T offset;
573 size_t total;
574 size_t num_to_write;
575 ssize_t pwrite_ret;
576
577 ret = SMB_VFS_FSTAT(fsp, &st);
578 if (ret == -1) {
579 return ret;
580 }
581
582 if (len <= st.st_ex_size) {
583 return 0;
584 }
585
586 DEBUG(10,("vfs_fill_sparse: write zeros in file %s from len %.0f to "
587 "len %.0f (%.0f bytes)\n", fsp_str_dbg(fsp),
588 (double)st.st_ex_size, (double)len,
589 (double)(len - st.st_ex_size)));
590
591 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_FILL_SPARSE);
592
593 flush_write_cache(fsp, SIZECHANGE_FLUSH);
594
595 if (!sparse_buf) {
596 sparse_buf = SMB_CALLOC_ARRAY(char, SPARSE_BUF_WRITE_SIZE);
597 if (!sparse_buf) {
598 errno = ENOMEM;
599 ret = -1;
600 goto out;
601 }
602 }
603
604 offset = st.st_ex_size;
605 num_to_write = len - st.st_ex_size;
606 total = 0;
607
608 while (total < num_to_write) {
609 size_t curr_write_size = MIN(SPARSE_BUF_WRITE_SIZE, (num_to_write - total));
610
611 pwrite_ret = SMB_VFS_PWRITE(fsp, sparse_buf, curr_write_size, offset + total);
612 if (pwrite_ret == -1) {
613 DEBUG(10,("vfs_fill_sparse: SMB_VFS_PWRITE for file "
614 "%s failed with error %s\n",
615 fsp_str_dbg(fsp), strerror(errno)));
616 ret = -1;
617 goto out;
618 }
619 if (pwrite_ret == 0) {
620 ret = 0;
621 goto out;
622 }
623
624 total += pwrite_ret;
625 }
626
627 set_filelen_write_cache(fsp, len);
628
629 ret = 0;
630 out:
631 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_FILL_SPARSE);
632 return ret;
633 }
634
635 /****************************************************************************
636 Transfer some data (n bytes) between two file_struct's.
637 ****************************************************************************/
638
639 static ssize_t vfs_read_fn(void *file, void *buf, size_t len)
640 {
641 struct files_struct *fsp = (struct files_struct *)file;
642
643 return SMB_VFS_READ(fsp, buf, len);
644 }
645
646 static ssize_t vfs_write_fn(void *file, const void *buf, size_t len)
647 {
648 struct files_struct *fsp = (struct files_struct *)file;
649
650 return SMB_VFS_WRITE(fsp, buf, len);
651 }
652
653 SMB_OFF_T vfs_transfer_file(files_struct *in, files_struct *out, SMB_OFF_T n)
654 {
655 return transfer_file_internal((void *)in, (void *)out, n,
656 vfs_read_fn, vfs_write_fn);
657 }
658
659 /*******************************************************************
660 A vfs_readdir wrapper which just returns the file name.
661 ********************************************************************/
662
663 const char *vfs_readdirname(connection_struct *conn, void *p,
664 SMB_STRUCT_STAT *sbuf, char **talloced)
665 {
666 SMB_STRUCT_DIRENT *ptr= NULL;
667 const char *dname;
668 char *translated;
669 NTSTATUS status;
670
671 if (!p)
672 return(NULL);
673
674 ptr = SMB_VFS_READDIR(conn, (DIR *)p, sbuf);
675 if (!ptr)
676 return(NULL);
677
678 dname = ptr->d_name;
679
680
681 #ifdef NEXT2
682 if (telldir(p) < 0)
683 return(NULL);
684 #endif
685
686 #ifdef HAVE_BROKEN_READDIR_NAME
687 /* using /usr/ucb/cc is BAD */
688 dname = dname - 2;
689 #endif
690
691 status = SMB_VFS_TRANSLATE_NAME(conn, dname, vfs_translate_to_windows,
692 talloc_tos(), &translated);
693 if (NT_STATUS_EQUAL(status, NT_STATUS_NONE_MAPPED)) {
694 *talloced = NULL;
695 return dname;
696 }
697 *talloced = translated;
698 if (!NT_STATUS_IS_OK(status)) {
699 return NULL;
700 }
701 return translated;
702 }
703
704 /*******************************************************************
705 A wrapper for vfs_chdir().
706 ********************************************************************/
707
708 int vfs_ChDir(connection_struct *conn, const char *path)
709 {
710 int res;
711
712 if (!LastDir) {
713 LastDir = SMB_STRDUP("");
714 }
715
716 if (strcsequal(path,"."))
717 return(0);
718
719 if (*path == '/' && strcsequal(LastDir,path))
720 return(0);
721
722 DEBUG(4,("vfs_ChDir to %s\n",path));
723
724 res = SMB_VFS_CHDIR(conn,path);
725 if (!res) {
726 SAFE_FREE(LastDir);
727 LastDir = SMB_STRDUP(path);
728 }
729 return(res);
730 }
731
732 /*******************************************************************
733 Return the absolute current directory path - given a UNIX pathname.
734 Note that this path is returned in DOS format, not UNIX
735 format. Note this can be called with conn == NULL.
736 ********************************************************************/
737
738 char *vfs_GetWd(TALLOC_CTX *ctx, connection_struct *conn)
739 {
740 char s[PATH_MAX+1];
741 char *result = NULL;
742 DATA_BLOB cache_value;
743 struct file_id key;
744 struct smb_filename *smb_fname_dot = NULL;
745 struct smb_filename *smb_fname_full = NULL;
746 NTSTATUS status;
747
748 *s = 0;
749
750 if (!lp_getwd_cache()) {
751 goto nocache;
752 }
753
754 status = create_synthetic_smb_fname(ctx, ".", NULL, NULL,
755 &smb_fname_dot);
756 if (!NT_STATUS_IS_OK(status)) {
757 errno = map_errno_from_nt_status(status);
758 goto out;
759 }
760
761 if (SMB_VFS_STAT(conn, smb_fname_dot) == -1) {
762 /*
763 * Known to fail for root: the directory may be NFS-mounted
764 * and exported with root_squash (so has no root access).
765 */
766 DEBUG(1,("vfs_GetWd: couldn't stat \".\" error %s "
767 "(NFS problem ?)\n", strerror(errno) ));
768 goto nocache;
769 }
770
771 key = vfs_file_id_from_sbuf(conn, &smb_fname_dot->st);
772
773 if (!memcache_lookup(smbd_memcache(), GETWD_CACHE,
774 data_blob_const(&key, sizeof(key)),
775 &cache_value)) {
776 goto nocache;
777 }
778
779 SMB_ASSERT((cache_value.length > 0)
780 && (cache_value.data[cache_value.length-1] == '\0'));
781
782 status = create_synthetic_smb_fname(ctx, (char *)cache_value.data,
783 NULL, NULL, &smb_fname_full);
784 if (!NT_STATUS_IS_OK(status)) {
785 errno = map_errno_from_nt_status(status);
786 goto out;
787 }
788
789 if ((SMB_VFS_STAT(conn, smb_fname_full) == 0) &&
790 (smb_fname_dot->st.st_ex_dev == smb_fname_full->st.st_ex_dev) &&
791 (smb_fname_dot->st.st_ex_ino == smb_fname_full->st.st_ex_ino) &&
792 (S_ISDIR(smb_fname_dot->st.st_ex_mode))) {
793 /*
794 * Ok, we're done
795 */
796 result = talloc_strdup(ctx, smb_fname_full->base_name);
797 if (result == NULL) {
798 errno = ENOMEM;
799 }
800 goto out;
801 }
802
803 nocache:
804
805 /*
806 * We don't have the information to hand so rely on traditional
807 * methods. The very slow getcwd, which spawns a process on some
808 * systems, or the not quite so bad getwd.
809 */
810
811 if (!SMB_VFS_GETWD(conn,s)) {
812 DEBUG(0, ("vfs_GetWd: SMB_VFS_GETWD call failed: %s\n",
813 strerror(errno)));
814 goto out;
815 }
816
817 if (lp_getwd_cache() && VALID_STAT(smb_fname_dot->st)) {
818 key = vfs_file_id_from_sbuf(conn, &smb_fname_dot->st);
819
820 memcache_add(smbd_memcache(), GETWD_CACHE,
821 data_blob_const(&key, sizeof(key)),
822 data_blob_const(s, strlen(s)+1));
823 }
824
825 result = talloc_strdup(ctx, s);
826 if (result == NULL) {
827 errno = ENOMEM;
828 }
829
830 out:
831 TALLOC_FREE(smb_fname_dot);
832 TALLOC_FREE(smb_fname_full);
833 return result;
834 }
835
836 /*******************************************************************
837 Reduce a file name, removing .. elements and checking that
838 it is below dir in the heirachy. This uses realpath.
839 ********************************************************************/
840
841 NTSTATUS check_reduced_name(connection_struct *conn, const char *fname)
842 {
843 #ifdef REALPATH_TAKES_NULL
844 bool free_resolved_name = True;
845 #else
846 char resolved_name_buf[PATH_MAX+1];
847 bool free_resolved_name = False;
848 #endif
849 char *resolved_name = NULL;
850 char *p = NULL;
851
852 DEBUG(3,("check_reduced_name [%s] [%s]\n", fname, conn->connectpath));
853
854 #ifdef REALPATH_TAKES_NULL
855 resolved_name = SMB_VFS_REALPATH(conn,fname,NULL);
856 #else
857 resolved_name = SMB_VFS_REALPATH(conn,fname,resolved_name_buf);
858 #endif
859
860 if (!resolved_name) {
861 switch (errno) {
862 case ENOTDIR:
863 DEBUG(3,("check_reduced_name: Component not a "
864 "directory in getting realpath for "
865 "%s\n", fname));
866 return NT_STATUS_OBJECT_PATH_NOT_FOUND;
867 case ENOENT:
868 {
869 TALLOC_CTX *ctx = talloc_tos();
870 char *tmp_fname = NULL;
871 char *last_component = NULL;
872 /* Last component didn't exist. Remove it and try and canonicalise the directory. */
873
874 tmp_fname = talloc_strdup(ctx, fname);
875 if (!tmp_fname) {
876 return NT_STATUS_NO_MEMORY;
877 }
878 p = strrchr_m(tmp_fname, '/');
879 if (p) {
880 *p++ = '\0';
881 last_component = p;
882 } else {
883 last_component = tmp_fname;
884 tmp_fname = talloc_strdup(ctx,
885 ".");
886 if (!tmp_fname) {
887 return NT_STATUS_NO_MEMORY;
888 }
889 }
890
891 #ifdef REALPATH_TAKES_NULL
892 resolved_name = SMB_VFS_REALPATH(conn,tmp_fname,NULL);
893 #else
894 resolved_name = SMB_VFS_REALPATH(conn,tmp_fname,resolved_name_buf);
895 #endif
896 if (!resolved_name) {
897 NTSTATUS status = map_nt_error_from_unix(errno);
898
899 if (errno == ENOENT || errno == ENOTDIR) {
900 status = NT_STATUS_OBJECT_PATH_NOT_FOUND;
901 }
902
903 DEBUG(3,("check_reduce_named: "
904 "couldn't get realpath for "
905 "%s (%s)\n",
906 fname,
907 nt_errstr(status)));
908 return status;
909 }
910 tmp_fname = talloc_asprintf(ctx,
911 "%s/%s",
912 resolved_name,
913 last_component);
914 if (!tmp_fname) {
915 return NT_STATUS_NO_MEMORY;
916 }
917 #ifdef REALPATH_TAKES_NULL
918 SAFE_FREE(resolved_name);
919 resolved_name = SMB_STRDUP(tmp_fname);
920 if (!resolved_name) {
921 DEBUG(0, ("check_reduced_name: malloc "
922 "fail for %s\n", tmp_fname));
923 return NT_STATUS_NO_MEMORY;
924 }
925 #else
926 safe_strcpy(resolved_name_buf, tmp_fname, PATH_MAX);
927 resolved_name = resolved_name_buf;
928 #endif
929 break;
930 }
931 default:
932 DEBUG(1,("check_reduced_name: couldn't get "
933 "realpath for %s\n", fname));
934 return map_nt_error_from_unix(errno);
935 }
936 }
937
938 DEBUG(10,("check_reduced_name realpath [%s] -> [%s]\n", fname,
939 resolved_name));
940
941 if (*resolved_name != '/') {
942 DEBUG(0,("check_reduced_name: realpath doesn't return "
943 "absolute paths !\n"));
944 if (free_resolved_name) {
945 SAFE_FREE(resolved_name);
946 }
947 return NT_STATUS_OBJECT_NAME_INVALID;
948 }
949
950 /* Check for widelinks allowed. */
951 if (!lp_widelinks(SNUM(conn))) {
952 const char *conn_rootdir;
953
954 conn_rootdir = SMB_VFS_CONNECTPATH(conn, fname);
955 if (conn_rootdir == NULL) {
956 DEBUG(2, ("check_reduced_name: Could not get "
957 "conn_rootdir\n"));
958 if (free_resolved_name) {
959 SAFE_FREE(resolved_name);
960 }
961 return NT_STATUS_ACCESS_DENIED;
962 }
963
964 if (strncmp(conn_rootdir, resolved_name,
965 strlen(conn_rootdir)) != 0) {
966 DEBUG(2, ("check_reduced_name: Bad access "
967 "attempt: %s is a symlink outside the "
968 "share path\n", fname));
969 if (free_resolved_name) {
970 SAFE_FREE(resolved_name);
971 }
972 return NT_STATUS_ACCESS_DENIED;
973 }
974 }
975
976 /* Check if we are allowing users to follow symlinks */
977 /* Patch from David Clerc <David.Clerc@cui.unige.ch>
978 University of Geneva */
979
980 #ifdef S_ISLNK
981 if (!lp_symlinks(SNUM(conn))) {
982 struct smb_filename *smb_fname = NULL;
983 NTSTATUS status;
984
985 status = create_synthetic_smb_fname(talloc_tos(), fname, NULL,
986 NULL, &smb_fname);
987 if (!NT_STATUS_IS_OK(status)) {
988 if (free_resolved_name) {
989 SAFE_FREE(resolved_name);
990 }
991 return status;
992 }
993
994 if ( (SMB_VFS_LSTAT(conn, smb_fname) != -1) &&
995 (S_ISLNK(smb_fname->st.st_ex_mode)) ) {
996 if (free_resolved_name) {
997 SAFE_FREE(resolved_name);
998 }
999 DEBUG(3,("check_reduced_name: denied: file path name "
1000 "%s is a symlink\n",resolved_name));
1001 TALLOC_FREE(smb_fname);
1002 return NT_STATUS_ACCESS_DENIED;
1003 }
1004 TALLOC_FREE(smb_fname);
1005 }
1006 #endif
1007
1008 DEBUG(3,("check_reduced_name: %s reduced to %s\n", fname,
1009 resolved_name));
1010 if (free_resolved_name) {
1011 SAFE_FREE(resolved_name);
1012 }
1013 return NT_STATUS_OK;
1014 }
1015
1016 /**
1017 * XXX: This is temporary and there should be no callers of this once
1018 * smb_filename is plumbed through all path based operations.
1019 */
1020 int vfs_stat_smb_fname(struct connection_struct *conn, const char *fname,
1021 SMB_STRUCT_STAT *psbuf)
1022 {
1023 struct smb_filename *smb_fname = NULL;
1024 NTSTATUS status;
1025 int ret;
1026
1027 status = create_synthetic_smb_fname_split(talloc_tos(), fname, NULL,
1028 &smb_fname);
1029 if (!NT_STATUS_IS_OK(status)) {
1030 errno = map_errno_from_nt_status(status);
1031 return -1;
1032 }
1033
1034 if (lp_posix_pathnames()) {
1035 ret = SMB_VFS_LSTAT(conn, smb_fname);
1036 } else {
1037 ret = SMB_VFS_STAT(conn, smb_fname);
1038 }
1039
1040 if (ret != -1) {
1041 *psbuf = smb_fname->st;
1042 }
1043
1044 TALLOC_FREE(smb_fname);
1045 return ret;
1046 }
1047
1048 /**
1049 * XXX: This is temporary and there should be no callers of this once
1050 * smb_filename is plumbed through all path based operations.
1051 */
1052 int vfs_lstat_smb_fname(struct connection_struct *conn, const char *fname,
1053 SMB_STRUCT_STAT *psbuf)
1054 {
1055 struct smb_filename *smb_fname = NULL;
1056 NTSTATUS status;
1057 int ret;
1058
1059 status = create_synthetic_smb_fname_split(talloc_tos(), fname, NULL,
1060 &smb_fname);
1061 if (!NT_STATUS_IS_OK(status)) {
1062 errno = map_errno_from_nt_status(status);
1063 return -1;
1064 }
1065
1066 ret = SMB_VFS_LSTAT(conn, smb_fname);
1067 if (ret != -1) {
1068 *psbuf = smb_fname->st;
1069 }
1070
1071 TALLOC_FREE(smb_fname);
1072 return ret;
1073 }
1074
1075 /**
1076 * Ensure LSTAT is called for POSIX paths.
1077 */
1078
1079 NTSTATUS vfs_stat_fsp(files_struct *fsp)
1080 {
1081 int ret;
1082
1083 if(fsp->is_directory || fsp->fh->fd == -1) {
1084 if (fsp->posix_open) {
1085 ret = SMB_VFS_LSTAT(fsp->conn, fsp->fsp_name);
1086 } else {
1087 ret = SMB_VFS_STAT(fsp->conn, fsp->fsp_name);
1088 }
1089 if (ret == -1) {
1090 return map_nt_error_from_unix(errno);
1091 }
1092 } else {
1093 if(SMB_VFS_FSTAT(fsp, &fsp->fsp_name->st) != 0) {
1094 return map_nt_error_from_unix(errno);
1095 }
1096 }
1097 return NT_STATUS_OK;
1098 }
1099
1100 /*
1101 generate a file_id from a stat structure
1102 */
1103 struct file_id vfs_file_id_from_sbuf(connection_struct *conn, const SMB_STRUCT_STAT *sbuf)
1104 {
1105 return SMB_VFS_FILE_ID_CREATE(conn, sbuf);
1106 }
1107
1108 int smb_vfs_call_connect(struct vfs_handle_struct *handle,
1109 const char *service, const char *user)
1110 {
1111 VFS_FIND(connect_fn);
1112 return handle->fns->connect_fn(handle, service, user);
1113 }
1114
1115 void smb_vfs_call_disconnect(struct vfs_handle_struct *handle)
1116 {
1117 VFS_FIND(disconnect);
1118 handle->fns->disconnect(handle);
1119 }
1120
1121 uint64_t smb_vfs_call_disk_free(struct vfs_handle_struct *handle,
1122 const char *path, bool small_query,
1123 uint64_t *bsize, uint64_t *dfree,
1124 uint64_t *dsize)
1125 {
1126 VFS_FIND(disk_free);
1127 return handle->fns->disk_free(handle, path, small_query, bsize, dfree,
1128 dsize);
1129 }
1130
1131 int smb_vfs_call_get_quota(struct vfs_handle_struct *handle,
1132 enum SMB_QUOTA_TYPE qtype, unid_t id,
1133 SMB_DISK_QUOTA *qt)
1134 {
1135 VFS_FIND(get_quota);
1136 return handle->fns->get_quota(handle, qtype, id, qt);
1137 }
1138
1139 int smb_vfs_call_set_quota(struct vfs_handle_struct *handle,
1140 enum SMB_QUOTA_TYPE qtype, unid_t id,
1141 SMB_DISK_QUOTA *qt)
1142 {
1143 VFS_FIND(set_quota);
1144 return handle->fns->set_quota(handle, qtype, id, qt);
1145 }
1146
1147 int smb_vfs_call_get_shadow_copy_data(struct vfs_handle_struct *handle,
1148 struct files_struct *fsp,
1149 SHADOW_COPY_DATA *shadow_copy_data,
1150 bool labels)
1151 {
1152 VFS_FIND(get_shadow_copy_data);
1153 return handle->fns->get_shadow_copy_data(handle, fsp, shadow_copy_data,
1154 labels);
1155 }
1156 int smb_vfs_call_statvfs(struct vfs_handle_struct *handle, const char *path,
1157 struct vfs_statvfs_struct *statbuf)
1158 {
1159 VFS_FIND(statvfs);
1160 return handle->fns->statvfs(handle, path, statbuf);
1161 }
1162
1163 uint32_t smb_vfs_call_fs_capabilities(struct vfs_handle_struct *handle,
1164 enum timestamp_set_resolution *p_ts_res)
1165 {
1166 VFS_FIND(fs_capabilities);
1167 return handle->fns->fs_capabilities(handle, p_ts_res);
1168 }
1169
1170 SMB_STRUCT_DIR *smb_vfs_call_opendir(struct vfs_handle_struct *handle,
1171 const char *fname, const char *mask,
1172 uint32 attributes)
1173 {
1174 VFS_FIND(opendir);
1175 return handle->fns->opendir(handle, fname, mask, attributes);
1176 }
1177
1178 SMB_STRUCT_DIRENT *smb_vfs_call_readdir(struct vfs_handle_struct *handle,
1179 SMB_STRUCT_DIR *dirp,
1180 SMB_STRUCT_STAT *sbuf)
1181 {
1182 VFS_FIND(readdir);
1183 return handle->fns->readdir(handle, dirp, sbuf);
1184 }
1185
1186 void smb_vfs_call_seekdir(struct vfs_handle_struct *handle,
1187 SMB_STRUCT_DIR *dirp, long offset)
1188 {
1189 VFS_FIND(seekdir);
1190 handle->fns->seekdir(handle, dirp, offset);
1191 }
1192
1193 long smb_vfs_call_telldir(struct vfs_handle_struct *handle,
1194 SMB_STRUCT_DIR *dirp)
1195 {
1196 VFS_FIND(telldir);
1197 return handle->fns->telldir(handle, dirp);
1198 }
1199
1200 void smb_vfs_call_rewind_dir(struct vfs_handle_struct *handle,
1201 SMB_STRUCT_DIR *dirp)
1202 {
1203 VFS_FIND(rewind_dir);
1204 handle->fns->rewind_dir(handle, dirp);
1205 }
1206
1207 int smb_vfs_call_mkdir(struct vfs_handle_struct *handle, const char *path,
1208 mode_t mode)
1209 {
1210 VFS_FIND(mkdir);
1211 return handle->fns->mkdir(handle, path, mode);
1212 }
1213
1214 int smb_vfs_call_rmdir(struct vfs_handle_struct *handle, const char *path)
1215 {
1216 VFS_FIND(rmdir);
1217 return handle->fns->rmdir(handle, path);
1218 }
1219
1220 int smb_vfs_call_closedir(struct vfs_handle_struct *handle,
1221 SMB_STRUCT_DIR *dir)
1222 {
1223 VFS_FIND(closedir);
1224 return handle->fns->closedir(handle, dir);
1225 }
1226
1227 void smb_vfs_call_init_search_op(struct vfs_handle_struct *handle,
1228 SMB_STRUCT_DIR *dirp)
1229 {
1230 VFS_FIND(init_search_op);
1231 handle->fns->init_search_op(handle, dirp);
1232 }
1233
1234 int smb_vfs_call_open(struct vfs_handle_struct *handle,
1235 struct smb_filename *smb_fname, struct files_struct *fsp,
1236 int flags, mode_t mode)
1237 {
1238 VFS_FIND(open);
1239 return handle->fns->open(handle, smb_fname, fsp, flags, mode);
1240 }
1241
1242 NTSTATUS smb_vfs_call_create_file(struct vfs_handle_struct *handle,
1243 struct smb_request *req,
1244 uint16_t root_dir_fid,
1245 struct smb_filename *smb_fname,
1246 uint32_t access_mask,
1247 uint32_t share_access,
1248 uint32_t create_disposition,
1249 uint32_t create_options,
1250 uint32_t file_attributes,
1251 uint32_t oplock_request,
1252 uint64_t allocation_size,
1253 uint32_t private_flags,
1254 struct security_descriptor *sd,
1255 struct ea_list *ea_list,
1256 files_struct **result,
1257 int *pinfo)
1258 {
1259 VFS_FIND(create_file);
1260 return handle->fns->create_file(
1261 handle, req, root_dir_fid, smb_fname, access_mask,
1262 share_access, create_disposition, create_options,
1263 file_attributes, oplock_request, allocation_size,
1264 private_flags, sd, ea_list,
1265 result, pinfo);
1266 }
1267
1268 int smb_vfs_call_close_fn(struct vfs_handle_struct *handle,
1269 struct files_struct *fsp)
1270 {
1271 VFS_FIND(close_fn);
1272 return handle->fns->close_fn(handle, fsp);
1273 }
1274
1275 ssize_t smb_vfs_call_vfs_read(struct vfs_handle_struct *handle,
1276 struct files_struct *fsp, void *data, size_t n)
1277 {
1278 VFS_FIND(vfs_read);
1279 return handle->fns->vfs_read(handle, fsp, data, n);
1280 }
1281
1282 ssize_t smb_vfs_call_pread(struct vfs_handle_struct *handle,
1283 struct files_struct *fsp, void *data, size_t n,
1284 SMB_OFF_T offset)
1285 {
1286 VFS_FIND(pread);
1287 return handle->fns->pread(handle, fsp, data, n, offset);
1288 }
1289
1290 ssize_t smb_vfs_call_write(struct vfs_handle_struct *handle,
1291 struct files_struct *fsp, const void *data,
1292 size_t n)
1293 {
1294 VFS_FIND(write);
1295 return handle->fns->write(handle, fsp, data, n);
1296 }
1297
1298 ssize_t smb_vfs_call_pwrite(struct vfs_handle_struct *handle,
1299 struct files_struct *fsp, const void *data,
1300 size_t n, SMB_OFF_T offset)
1301 {
1302 VFS_FIND(pwrite);
1303 return handle->fns->pwrite(handle, fsp, data, n, offset);
1304 }
1305
1306 SMB_OFF_T smb_vfs_call_lseek(struct vfs_handle_struct *handle,
1307 struct files_struct *fsp, SMB_OFF_T offset,
1308 int whence)
1309 {
1310 VFS_FIND(lseek);
1311 return handle->fns->lseek(handle, fsp, offset, whence);
1312 }
1313
1314 ssize_t smb_vfs_call_sendfile(struct vfs_handle_struct *handle, int tofd,
1315 files_struct *fromfsp, const DATA_BLOB *header,
1316 SMB_OFF_T offset, size_t count)
1317 {
1318 VFS_FIND(sendfile);
1319 return handle->fns->sendfile(handle, tofd, fromfsp, header, offset,
1320 count);
1321 }
1322
1323 ssize_t smb_vfs_call_recvfile(struct vfs_handle_struct *handle, int fromfd,
1324 files_struct *tofsp, SMB_OFF_T offset,
1325 size_t count)
1326 {
1327 VFS_FIND(recvfile);
1328 return handle->fns->recvfile(handle, fromfd, tofsp, offset, count);
1329 }
1330
1331 int smb_vfs_call_rename(struct vfs_handle_struct *handle,
1332 const struct smb_filename *smb_fname_src,
1333 const struct smb_filename *smb_fname_dst)
1334 {
1335 VFS_FIND(rename);
1336 return handle->fns->rename(handle, smb_fname_src, smb_fname_dst);
1337 }
1338
1339 int smb_vfs_call_fsync(struct vfs_handle_struct *handle,
1340 struct files_struct *fsp)
1341 {
1342 VFS_FIND(fsync);
1343 return handle->fns->fsync(handle, fsp);
1344 }
1345
1346 int smb_vfs_call_stat(struct vfs_handle_struct *handle,
1347 struct smb_filename *smb_fname)
1348 {
1349 VFS_FIND(stat);
1350 return handle->fns->stat(handle, smb_fname);
1351 }
1352
1353 int smb_vfs_call_fstat(struct vfs_handle_struct *handle,
1354 struct files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1355 {
1356 VFS_FIND(fstat);
1357 return handle->fns->fstat(handle, fsp, sbuf);
1358 }
1359
1360 int smb_vfs_call_lstat(struct vfs_handle_struct *handle,
1361 struct smb_filename *smb_filename)
1362 {
1363 VFS_FIND(lstat);
1364 return handle->fns->lstat(handle, smb_filename);
1365 }
1366
1367 uint64_t smb_vfs_call_get_alloc_size(struct vfs_handle_struct *handle,
1368 struct files_struct *fsp,
1369 const SMB_STRUCT_STAT *sbuf)
1370 {
1371 VFS_FIND(get_alloc_size);
1372 return handle->fns->get_alloc_size(handle, fsp, sbuf);
1373 }
1374
1375 int smb_vfs_call_unlink(struct vfs_handle_struct *handle,
1376 const struct smb_filename *smb_fname)
1377 {
1378 VFS_FIND(unlink);
1379 return handle->fns->unlink(handle, smb_fname);
1380 }
1381
1382 int smb_vfs_call_chmod(struct vfs_handle_struct *handle, const char *path,
1383 mode_t mode)
1384 {
1385 VFS_FIND(chmod);
1386 return handle->fns->chmod(handle, path, mode);
1387 }
1388
1389 int smb_vfs_call_fchmod(struct vfs_handle_struct *handle,
1390 struct files_struct *fsp, mode_t mode)
1391 {
1392 VFS_FIND(fchmod);
1393 return handle->fns->fchmod(handle, fsp, mode);
1394 }
1395
1396 int smb_vfs_call_chown(struct vfs_handle_struct *handle, const char *path,
1397 uid_t uid, gid_t gid)
1398 {
1399 VFS_FIND(chown);
1400 return handle->fns->chown(handle, path, uid, gid);
1401 }
1402
1403 int smb_vfs_call_fchown(struct vfs_handle_struct *handle,
1404 struct files_struct *fsp, uid_t uid, gid_t gid)
1405 {
1406 VFS_FIND(fchown);
1407 return handle->fns->fchown(handle, fsp, uid, gid);
1408 }
1409
1410 int smb_vfs_call_lchown(struct vfs_handle_struct *handle, const char *path,
1411 uid_t uid, gid_t gid)
1412 {
1413 VFS_FIND(lchown);
1414 return handle->fns->lchown(handle, path, uid, gid);
1415 }
1416
1417 int smb_vfs_call_chdir(struct vfs_handle_struct *handle, const char *path)
1418 {
1419 VFS_FIND(chdir);
1420 return handle->fns->chdir(handle, path);
1421 }
1422
1423 char *smb_vfs_call_getwd(struct vfs_handle_struct *handle, char *buf)
1424 {
1425 VFS_FIND(getwd);
1426 return handle->fns->getwd(handle, buf);
1427 }
1428
1429 int smb_vfs_call_ntimes(struct vfs_handle_struct *handle,
1430 const struct smb_filename *smb_fname,
1431 struct smb_file_time *ft)
1432 {
1433 VFS_FIND(ntimes);
1434 return handle->fns->ntimes(handle, smb_fname, ft);
1435 }
1436
1437 int smb_vfs_call_ftruncate(struct vfs_handle_struct *handle,
1438 struct files_struct *fsp, SMB_OFF_T offset)
1439 {
1440 VFS_FIND(ftruncate);
1441 return handle->fns->ftruncate(handle, fsp, offset);
1442 }
1443
1444 int smb_vfs_call_kernel_flock(struct vfs_handle_struct *handle,
1445 struct files_struct *fsp, uint32 share_mode,
1446 uint32_t access_mask)
1447 {
1448 VFS_FIND(kernel_flock);
1449 return handle->fns->kernel_flock(handle, fsp, share_mode,
1450 access_mask);
1451 }
1452
1453 int smb_vfs_call_linux_setlease(struct vfs_handle_struct *handle,
1454 struct files_struct *fsp, int leasetype)
1455 {
1456 VFS_FIND(linux_setlease);
1457 return handle->fns->linux_setlease(handle, fsp, leasetype);
1458 }
1459
1460 int smb_vfs_call_symlink(struct vfs_handle_struct *handle, const char *oldpath,
1461 const char *newpath)
1462 {
1463 VFS_FIND(symlink);
1464 return handle->fns->symlink(handle, oldpath, newpath);
1465 }
1466
1467 int smb_vfs_call_vfs_readlink(struct vfs_handle_struct *handle,
1468 const char *path, char *buf, size_t bufsiz)
1469 {
1470 VFS_FIND(vfs_readlink);
1471 return handle->fns->vfs_readlink(handle, path, buf, bufsiz);
1472 }
1473
1474 int smb_vfs_call_link(struct vfs_handle_struct *handle, const char *oldpath,
1475 const char *newpath)
1476 {
1477 VFS_FIND(link);
1478 return handle->fns->link(handle, oldpath, newpath);
1479 }
1480
1481 int smb_vfs_call_mknod(struct vfs_handle_struct *handle, const char *path,
1482 mode_t mode, SMB_DEV_T dev)
1483 {
1484 VFS_FIND(mknod);
1485 return handle->fns->mknod(handle, path, mode, dev);
1486 }
1487
1488 char *smb_vfs_call_realpath(struct vfs_handle_struct *handle,
1489 const char *path, char *resolved_path)
1490 {
1491 VFS_FIND(realpath);
1492 return handle->fns->realpath(handle, path, resolved_path);
1493 }
1494
1495 NTSTATUS smb_vfs_call_notify_watch(struct vfs_handle_struct *handle,
1496 struct sys_notify_context *ctx,
1497 struct notify_entry *e,
1498 void (*callback)(struct sys_notify_context *ctx,
1499 void *private_data,
1500 struct notify_event *ev),
1501 void *private_data, void *handle_p)
1502 {
1503 VFS_FIND(notify_watch);
1504 return handle->fns->notify_watch(handle, ctx, e, callback,
1505 private_data, handle_p);
1506 }
1507
1508 int smb_vfs_call_chflags(struct vfs_handle_struct *handle, const char *path,
1509 unsigned int flags)
1510 {
1511 VFS_FIND(chflags);
1512 return handle->fns->chflags(handle, path, flags);
1513 }
1514
1515 struct file_id smb_vfs_call_file_id_create(struct vfs_handle_struct *handle,
1516 const SMB_STRUCT_STAT *sbuf)
1517 {
1518 VFS_FIND(file_id_create);
1519 return handle->fns->file_id_create(handle, sbuf);
1520 }
1521
1522 NTSTATUS smb_vfs_call_streaminfo(struct vfs_handle_struct *handle,
1523 struct files_struct *fsp,
1524 const char *fname,
1525 TALLOC_CTX *mem_ctx,
1526 unsigned int *num_streams,
1527 struct stream_struct **streams)
1528 {
1529 VFS_FIND(streaminfo);
1530 return handle->fns->streaminfo(handle, fsp, fname, mem_ctx,
1531 num_streams, streams);
1532 }
1533
1534 int smb_vfs_call_get_real_filename(struct vfs_handle_struct *handle,
1535 const char *path, const char *name,
1536 TALLOC_CTX *mem_ctx, char **found_name)
1537 {
1538 VFS_FIND(get_real_filename);
1539 return handle->fns->get_real_filename(handle, path, name, mem_ctx,
1540 found_name);
1541 }
1542
1543 const char *smb_vfs_call_connectpath(struct vfs_handle_struct *handle,
1544 const char *filename)
1545 {
1546 VFS_FIND(connectpath);
1547 return handle->fns->connectpath(handle, filename);
1548 }
1549
1550 bool smb_vfs_call_strict_lock(struct vfs_handle_struct *handle,
1551 struct files_struct *fsp,
1552 struct lock_struct *plock)
1553 {
1554 VFS_FIND(strict_lock);
1555 return handle->fns->strict_lock(handle, fsp, plock);
1556 }
1557
1558 void smb_vfs_call_strict_unlock(struct vfs_handle_struct *handle,
1559 struct files_struct *fsp,
1560 struct lock_struct *plock)
1561 {
1562 VFS_FIND(strict_unlock);
1563 handle->fns->strict_unlock(handle, fsp, plock);
1564 }
1565
1566 NTSTATUS smb_vfs_call_translate_name(struct vfs_handle_struct *handle,
1567 const char *name,
1568 enum vfs_translate_direction direction,
1569 TALLOC_CTX *mem_ctx,
1570 char **mapped_name)
1571 {
1572 VFS_FIND(translate_name);
1573 return handle->fns->translate_name(handle, name, direction, mem_ctx,
1574 mapped_name);
1575 }
1576
1577 NTSTATUS smb_vfs_call_fget_nt_acl(struct vfs_handle_struct *handle,
1578 struct files_struct *fsp,
1579 uint32 security_info,
1580 struct security_descriptor **ppdesc)
1581 {
1582 VFS_FIND(fget_nt_acl);
1583 return handle->fns->fget_nt_acl(handle, fsp, security_info,
1584 ppdesc);
1585 }
1586
1587 NTSTATUS smb_vfs_call_get_nt_acl(struct vfs_handle_struct *handle,
1588 const char *name,
1589 uint32 security_info,
1590 struct security_descriptor **ppdesc)
1591 {
1592 VFS_FIND(get_nt_acl);
1593 return handle->fns->get_nt_acl(handle, name, security_info, ppdesc);
1594 }
1595
1596 NTSTATUS smb_vfs_call_fset_nt_acl(struct vfs_handle_struct *handle,
1597 struct files_struct *fsp,
1598 uint32 security_info_sent,
1599 const struct security_descriptor *psd)
1600 {
1601 VFS_FIND(fset_nt_acl);
1602 return handle->fns->fset_nt_acl(handle, fsp, security_info_sent, psd);
1603 }
1604
1605 int smb_vfs_call_chmod_acl(struct vfs_handle_struct *handle, const char *name,
1606 mode_t mode)
1607 {
1608 VFS_FIND(chmod_acl);
1609 return handle->fns->chmod_acl(handle, name, mode);
1610 }
1611
1612 int smb_vfs_call_fchmod_acl(struct vfs_handle_struct *handle,
1613 struct files_struct *fsp, mode_t mode)
1614 {
1615 VFS_FIND(fchmod_acl);
1616 return handle->fns->fchmod_acl(handle, fsp, mode);
1617 }
1618
1619 int smb_vfs_call_sys_acl_get_entry(struct vfs_handle_struct *handle,
1620 SMB_ACL_T theacl, int entry_id,
1621 SMB_ACL_ENTRY_T *entry_p)
1622 {
1623 VFS_FIND(sys_acl_get_entry);
1624 return handle->fns->sys_acl_get_entry(handle, theacl, entry_id,
1625 entry_p);
1626 }
1627
1628 int smb_vfs_call_sys_acl_get_tag_type(struct vfs_handle_struct *handle,
1629 SMB_ACL_ENTRY_T entry_d,
1630 SMB_ACL_TAG_T *tag_type_p)
1631 {
1632 VFS_FIND(sys_acl_get_tag_type);
1633 return handle->fns->sys_acl_get_tag_type(handle, entry_d, tag_type_p);
1634 }
1635
1636 int smb_vfs_call_sys_acl_get_permset(struct vfs_handle_struct *handle,
1637 SMB_ACL_ENTRY_T entry_d,
1638 SMB_ACL_PERMSET_T *permset_p)
1639 {
1640 VFS_FIND(sys_acl_get_permset);
1641 return handle->fns->sys_acl_get_permset(handle, entry_d, permset_p);
1642 }
1643
1644 void * smb_vfs_call_sys_acl_get_qualifier(struct vfs_handle_struct *handle,
1645 SMB_ACL_ENTRY_T entry_d)
1646 {
1647 VFS_FIND(sys_acl_get_qualifier);
1648 return handle->fns->sys_acl_get_qualifier(handle, entry_d);
1649 }
1650
1651 SMB_ACL_T smb_vfs_call_sys_acl_get_file(struct vfs_handle_struct *handle,
1652 const char *path_p,
1653 SMB_ACL_TYPE_T type)
1654 {
1655 VFS_FIND(sys_acl_get_file);
1656 return handle->fns->sys_acl_get_file(handle, path_p, type);
1657 }
1658
1659 SMB_ACL_T smb_vfs_call_sys_acl_get_fd(struct vfs_handle_struct *handle,
1660 struct files_struct *fsp)
1661 {
1662 VFS_FIND(sys_acl_get_fd);
1663 return handle->fns->sys_acl_get_fd(handle, fsp);
1664 }
1665
1666 int smb_vfs_call_sys_acl_clear_perms(struct vfs_handle_struct *handle,
1667 SMB_ACL_PERMSET_T permset)
1668 {
1669 VFS_FIND(sys_acl_clear_perms);
1670 return handle->fns->sys_acl_clear_perms(handle, permset);
1671 }
1672
1673 int smb_vfs_call_sys_acl_add_perm(struct vfs_handle_struct *handle,
1674 SMB_ACL_PERMSET_T permset,
1675 SMB_ACL_PERM_T perm)
1676 {
1677 VFS_FIND(sys_acl_add_perm);
1678 return handle->fns->sys_acl_add_perm(handle, permset, perm);
1679 }
1680
1681 char * smb_vfs_call_sys_acl_to_text(struct vfs_handle_struct *handle,
1682 SMB_ACL_T theacl, ssize_t *plen)
1683 {
1684 VFS_FIND(sys_acl_to_text);
1685 return handle->fns->sys_acl_to_text(handle, theacl, plen);
1686 }
1687
1688 SMB_ACL_T smb_vfs_call_sys_acl_init(struct vfs_handle_struct *handle,
1689 int count)
1690 {
1691 VFS_FIND(sys_acl_init);
1692 return handle->fns->sys_acl_init(handle, count);
1693 }
1694
1695 int smb_vfs_call_sys_acl_create_entry(struct vfs_handle_struct *handle,
1696 SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry)
1697 {
1698 VFS_FIND(sys_acl_create_entry);
1699 return handle->fns->sys_acl_create_entry(handle, pacl, pentry);
1700 }
1701
1702 int smb_vfs_call_sys_acl_set_tag_type(struct vfs_handle_struct *handle,
1703 SMB_ACL_ENTRY_T entry,
1704 SMB_ACL_TAG_T tagtype)
1705 {
1706 VFS_FIND(sys_acl_set_tag_type);
1707 return handle->fns->sys_acl_set_tag_type(handle, entry, tagtype);
1708 }
1709
1710 int smb_vfs_call_sys_acl_set_qualifier(struct vfs_handle_struct *handle,
1711 SMB_ACL_ENTRY_T entry, void *qual)
1712 {
1713 VFS_FIND(sys_acl_set_qualifier);
1714 return handle->fns->sys_acl_set_qualifier(handle, entry, qual);
1715 }
1716
1717 int smb_vfs_call_sys_acl_set_permset(struct vfs_handle_struct *handle,
1718 SMB_ACL_ENTRY_T entry,
1719 SMB_ACL_PERMSET_T permset)
1720 {
1721 VFS_FIND(sys_acl_set_permset);
1722 return handle->fns->sys_acl_set_permset(handle, entry, permset);
1723 }
1724
1725 int smb_vfs_call_sys_acl_valid(struct vfs_handle_struct *handle,
1726 SMB_ACL_T theacl)
1727 {
1728 VFS_FIND(sys_acl_valid);
1729 return handle->fns->sys_acl_valid(handle, theacl);
1730 }
1731
1732 int smb_vfs_call_sys_acl_set_file(struct vfs_handle_struct *handle,
1733 const char *name, SMB_ACL_TYPE_T acltype,
1734 SMB_ACL_T theacl)
1735 {
1736 VFS_FIND(sys_acl_set_file);
1737 return handle->fns->sys_acl_set_file(handle, name, acltype, theacl);
1738 }
1739
1740 int smb_vfs_call_sys_acl_set_fd(struct vfs_handle_struct *handle,
1741 struct files_struct *fsp, SMB_ACL_T theacl)
1742 {
1743 VFS_FIND(sys_acl_set_fd);
1744 return handle->fns->sys_acl_set_fd(handle, fsp, theacl);
1745 }
1746
1747 int smb_vfs_call_sys_acl_delete_def_file(struct vfs_handle_struct *handle,
1748 const char *path)
1749 {
1750 VFS_FIND(sys_acl_delete_def_file);
1751 return handle->fns->sys_acl_delete_def_file(handle, path);
1752 }
1753
1754 int smb_vfs_call_sys_acl_get_perm(struct vfs_handle_struct *handle,
1755 SMB_ACL_PERMSET_T permset,
1756 SMB_ACL_PERM_T perm)
1757 {
1758 VFS_FIND(sys_acl_get_perm);
1759 return handle->fns->sys_acl_get_perm(handle, permset, perm);
1760 }
1761
1762 int smb_vfs_call_sys_acl_free_text(struct vfs_handle_struct *handle,
1763 char *text)
1764 {
1765 VFS_FIND(sys_acl_free_text);
1766 return handle->fns->sys_acl_free_text(handle, text);
1767 }
1768
1769 int smb_vfs_call_sys_acl_free_acl(struct vfs_handle_struct *handle,
1770 SMB_ACL_T posix_acl)
1771 {
1772 VFS_FIND(sys_acl_free_acl);
1773 return handle->fns->sys_acl_free_acl(handle, posix_acl);
1774 }
1775
1776 int smb_vfs_call_sys_acl_free_qualifier(struct vfs_handle_struct *handle,
1777 void *qualifier, SMB_ACL_TAG_T tagtype)
1778 {
1779 VFS_FIND(sys_acl_free_qualifier);
1780 return handle->fns->sys_acl_free_qualifier(handle, qualifier, tagtype);
1781 }
1782
1783 ssize_t smb_vfs_call_getxattr(struct vfs_handle_struct *handle,
1784 const char *path, const char *name, void *value,
1785 size_t size)
1786 {
1787 VFS_FIND(getxattr);
1788 return handle->fns->getxattr(handle, path, name, value, size);
1789 }
1790
1791 ssize_t smb_vfs_call_lgetxattr(struct vfs_handle_struct *handle,
1792 const char *path, const char *name, void *value,
1793 size_t size)
1794 {
1795 VFS_FIND(lgetxattr);
1796 return handle->fns->lgetxattr(handle, path, name, value, size);
1797 }
1798
1799 ssize_t smb_vfs_call_fgetxattr(struct vfs_handle_struct *handle,
1800 struct files_struct *fsp, const char *name,
1801 void *value, size_t size)
1802 {
1803 VFS_FIND(fgetxattr);
1804 return handle->fns->fgetxattr(handle, fsp, name, value, size);
1805 }
1806
1807 ssize_t smb_vfs_call_listxattr(struct vfs_handle_struct *handle,
1808 const char *path, char *list, size_t size)
1809 {
1810 VFS_FIND(listxattr);
1811 return handle->fns->listxattr(handle, path, list, size);
1812 }
1813
1814 ssize_t smb_vfs_call_llistxattr(struct vfs_handle_struct *handle,
1815 const char *path, char *list, size_t size)
1816 {
1817 VFS_FIND(llistxattr);
1818 return handle->fns->llistxattr(handle, path, list, size);
1819 }
1820
1821 ssize_t smb_vfs_call_flistxattr(struct vfs_handle_struct *handle,
1822 struct files_struct *fsp, char *list,
1823 size_t size)
1824 {
1825 VFS_FIND(flistxattr);
1826 return handle->fns->flistxattr(handle, fsp, list, size);
1827 }
1828
1829 int smb_vfs_call_removexattr(struct vfs_handle_struct *handle,
1830 const char *path, const char *name)
1831 {
1832 VFS_FIND(removexattr);
1833 return handle->fns->removexattr(handle, path, name);
1834 }
1835
1836 int smb_vfs_call_lremovexattr(struct vfs_handle_struct *handle,
1837 const char *path, const char *name)
1838 {
1839 VFS_FIND(lremovexattr);
1840 return handle->fns->lremovexattr(handle, path, name);
1841 }
1842
1843 int smb_vfs_call_fremovexattr(struct vfs_handle_struct *handle,
1844 struct files_struct *fsp, const char *name)
1845 {
1846 VFS_FIND(fremovexattr);
1847 return handle->fns->fremovexattr(handle, fsp, name);
1848 }
1849
1850 int smb_vfs_call_setxattr(struct vfs_handle_struct *handle, const char *path,
1851 const char *name, const void *value, size_t size,
1852 int flags)
1853 {
1854 VFS_FIND(setxattr);
1855 return handle->fns->setxattr(handle, path, name, value, size, flags);
1856 }
1857
1858 int smb_vfs_call_lsetxattr(struct vfs_handle_struct *handle, const char *path,
1859 const char *name, const void *value, size_t size,
1860 int flags)
1861 {
1862 VFS_FIND(lsetxattr);
1863 return handle->fns->lsetxattr(handle, path, name, value, size, flags);
1864 }
1865
1866 int smb_vfs_call_fsetxattr(struct vfs_handle_struct *handle,
1867 struct files_struct *fsp, const char *name,
1868 const void *value, size_t size, int flags)
1869 {
1870 VFS_FIND(fsetxattr);
1871 return handle->fns->fsetxattr(handle, fsp, name, value, size, flags);
1872 }
1873
1874 int smb_vfs_call_aio_read(struct vfs_handle_struct *handle,
1875 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
1876 {
1877 VFS_FIND(aio_read);
1878 return handle->fns->aio_read(handle, fsp, aiocb);
1879 }
1880
1881 int smb_vfs_call_aio_write(struct vfs_handle_struct *handle,
1882 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
1883 {
1884 VFS_FIND(aio_write);
1885 return handle->fns->aio_write(handle, fsp, aiocb);
1886 }
1887
1888 ssize_t smb_vfs_call_aio_return_fn(struct vfs_handle_struct *handle,
1889 struct files_struct *fsp,
1890 SMB_STRUCT_AIOCB *aiocb)
1891 {
1892 VFS_FIND(aio_return_fn);
1893 return handle->fns->aio_return_fn(handle, fsp, aiocb);
1894 }
1895
1896 int smb_vfs_call_aio_cancel(struct vfs_handle_struct *handle,
1897 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
1898 {
1899 VFS_FIND(aio_cancel);
1900 return handle->fns->aio_cancel(handle, fsp, aiocb);
1901 }
1902
1903 int smb_vfs_call_aio_error_fn(struct vfs_handle_struct *handle,
1904 struct files_struct *fsp,
1905 SMB_STRUCT_AIOCB *aiocb)
1906 {
1907 VFS_FIND(aio_error_fn);
1908 return handle->fns->aio_error_fn(handle, fsp, aiocb);
1909 }
1910
1911 int smb_vfs_call_aio_fsync(struct vfs_handle_struct *handle,
1912 struct files_struct *fsp, int op,
1913 SMB_STRUCT_AIOCB *aiocb)
1914 {
1915 VFS_FIND(aio_fsync);
1916 return handle->fns->aio_fsync(handle, fsp, op, aiocb);
1917 }
1918
1919 int smb_vfs_call_aio_suspend(struct vfs_handle_struct *handle,
1920 struct files_struct *fsp,
1921 const SMB_STRUCT_AIOCB * const aiocb[], int n,
1922 const struct timespec *timeout)
1923 {
1924 VFS_FIND(aio_suspend);
1925 return handle->fns->aio_suspend(handle, fsp, aiocb, n, timeout);
1926 }
1927
1928 bool smb_vfs_call_aio_force(struct vfs_handle_struct *handle,
1929 struct files_struct *fsp)
1930 {
1931 VFS_FIND(aio_force);
1932 return handle->fns->aio_force(handle, fsp);
1933 }
1934
1935 bool smb_vfs_call_is_offline(struct vfs_handle_struct *handle,
1936 const char *path, SMB_STRUCT_STAT *sbuf)
1937 {
1938 VFS_FIND(is_offline);
1939 return handle->fns->is_offline(handle, path, sbuf);
1940 }
1941
1942 int smb_vfs_call_set_offline(struct vfs_handle_struct *handle,
1943 const char *path)
1944 {
1945 VFS_FIND(set_offline);
1946 return handle->fns->set_offline(handle, path);
1947 }
reg import