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Rename vfs operation posix_fallocate to just fallocate and add the vfs_fallocate_mode...
[Samba.git] / source3 / smbd / vfs.c
blobee70a3d583f3f3da64ed076dd77c3bdd834f6a07
1 /*
2 Unix SMB/Netbios implementation.
3 Version 1.9.
4 VFS initialisation and support functions
5 Copyright (C) Tim Potter 1999
6 Copyright (C) Alexander Bokovoy 2002
7 Copyright (C) James Peach 2006
8 Copyright (C) Volker Lendecke 2009
9
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
14
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>.
22
23 This work was sponsored by Optifacio Software Services, Inc.
24 */
25
26 #include "includes.h"
27 #include "smbd/globals.h"
28 #include "memcache.h"
29
30 #undef DBGC_CLASS
31 #define DBGC_CLASS DBGC_VFS
32
33 static_decl_vfs;
34
35 struct vfs_init_function_entry {
36 char *name;
37 struct vfs_init_function_entry *prev, *next;
38 const struct vfs_fn_pointers *fns;
39 };
40
41 /****************************************************************************
42 maintain the list of available backends
43 ****************************************************************************/
44
45 static struct vfs_init_function_entry *vfs_find_backend_entry(const char *name)
46 {
47 struct vfs_init_function_entry *entry = backends;
48
49 DEBUG(10, ("vfs_find_backend_entry called for %s\n", name));
50
51 while(entry) {
52 if (strcmp(entry->name, name)==0) return entry;
53 entry = entry->next;
54 }
55
56 return NULL;
57 }
58
59 NTSTATUS smb_register_vfs(int version, const char *name,
60 const struct vfs_fn_pointers *fns)
61 {
62 struct vfs_init_function_entry *entry = backends;
63
64 if ((version != SMB_VFS_INTERFACE_VERSION)) {
65 DEBUG(0, ("Failed to register vfs module.\n"
66 "The module was compiled against SMB_VFS_INTERFACE_VERSION %d,\n"
67 "current SMB_VFS_INTERFACE_VERSION is %d.\n"
68 "Please recompile against the current Samba Version!\n",
69 version, SMB_VFS_INTERFACE_VERSION));
70 return NT_STATUS_OBJECT_TYPE_MISMATCH;
71 }
72
73 if (!name || !name[0]) {
74 DEBUG(0,("smb_register_vfs() called with NULL pointer or empty name!\n"));
75 return NT_STATUS_INVALID_PARAMETER;
76 }
77
78 if (vfs_find_backend_entry(name)) {
79 DEBUG(0,("VFS module %s already loaded!\n", name));
80 return NT_STATUS_OBJECT_NAME_COLLISION;
81 }
82
83 entry = SMB_XMALLOC_P(struct vfs_init_function_entry);
84 entry->name = smb_xstrdup(name);
85 entry->fns = fns;
86
87 DLIST_ADD(backends, entry);
88 DEBUG(5, ("Successfully added vfs backend '%s'\n", name));
89 return NT_STATUS_OK;
90 }
91
92 /****************************************************************************
93 initialise default vfs hooks
94 ****************************************************************************/
95
96 static void vfs_init_default(connection_struct *conn)
97 {
98 DEBUG(3, ("Initialising default vfs hooks\n"));
99 vfs_init_custom(conn, DEFAULT_VFS_MODULE_NAME);
100 }
101
102 /****************************************************************************
103 initialise custom vfs hooks
104 ****************************************************************************/
105
106 bool vfs_init_custom(connection_struct *conn, const char *vfs_object)
107 {
108 char *module_path = NULL;
109 char *module_name = NULL;
110 char *module_param = NULL, *p;
111 vfs_handle_struct *handle;
112 const struct vfs_init_function_entry *entry;
113
114 if (!conn||!vfs_object||!vfs_object[0]) {
115 DEBUG(0, ("vfs_init_custom() called with NULL pointer or "
116 "empty vfs_object!\n"));
117 return False;
118 }
119
120 if(!backends) {
121 static_init_vfs;
122 }
123
124 DEBUG(3, ("Initialising custom vfs hooks from [%s]\n", vfs_object));
125
126 module_path = smb_xstrdup(vfs_object);
127
128 p = strchr_m(module_path, ':');
129
130 if (p) {
131 *p = 0;
132 module_param = p+1;
133 trim_char(module_param, ' ', ' ');
134 }
135
136 trim_char(module_path, ' ', ' ');
137
138 module_name = smb_xstrdup(module_path);
139
140 if ((module_name[0] == '/') &&
141 (strcmp(module_path, DEFAULT_VFS_MODULE_NAME) != 0)) {
142
143 /*
144 * Extract the module name from the path. Just use the base
145 * name of the last path component.
146 */
147
148 SAFE_FREE(module_name);
149 module_name = smb_xstrdup(strrchr_m(module_path, '/')+1);
150
151 p = strchr_m(module_name, '.');
152
153 if (p != NULL) {
154 *p = '\0';
155 }
156 }
157
158 /* First, try to load the module with the new module system */
159 entry = vfs_find_backend_entry(module_name);
160 if (!entry) {
161 NTSTATUS status;
162
163 DEBUG(5, ("vfs module [%s] not loaded - trying to load...\n",
164 vfs_object));
165
166 status = smb_probe_module("vfs", module_path);
167 if (!NT_STATUS_IS_OK(status)) {
168 DEBUG(0, ("error probing vfs module '%s': %s\n",
169 module_path, nt_errstr(status)));
170 goto fail;
171 }
172
173 entry = vfs_find_backend_entry(module_name);
174 if (!entry) {
175 DEBUG(0,("Can't find a vfs module [%s]\n",vfs_object));
176 goto fail;
177 }
178 }
179
180 DEBUGADD(5,("Successfully loaded vfs module [%s] with the new modules system\n", vfs_object));
181
182 handle = TALLOC_ZERO_P(conn, vfs_handle_struct);
183 if (!handle) {
184 DEBUG(0,("TALLOC_ZERO() failed!\n"));
185 goto fail;
186 }
187 handle->conn = conn;
188 handle->fns = entry->fns;
189 if (module_param) {
190 handle->param = talloc_strdup(conn, module_param);
191 }
192 DLIST_ADD(conn->vfs_handles, handle);
193
194 SAFE_FREE(module_path);
195 SAFE_FREE(module_name);
196 return True;
197
198 fail:
199 SAFE_FREE(module_path);
200 SAFE_FREE(module_name);
201 return False;
202 }
203
204 /*****************************************************************
205 Allow VFS modules to extend files_struct with VFS-specific state.
206 This will be ok for small numbers of extensions, but might need to
207 be refactored if it becomes more widely used.
208 ******************************************************************/
209
210 #define EXT_DATA_AREA(e) ((uint8 *)(e) + sizeof(struct vfs_fsp_data))
211
212 void *vfs_add_fsp_extension_notype(vfs_handle_struct *handle,
213 files_struct *fsp, size_t ext_size,
214 void (*destroy_fn)(void *p_data))
215 {
216 struct vfs_fsp_data *ext;
217 void * ext_data;
218
219 /* Prevent VFS modules adding multiple extensions. */
220 if ((ext_data = vfs_fetch_fsp_extension(handle, fsp))) {
221 return ext_data;
222 }
223
224 ext = (struct vfs_fsp_data *)TALLOC_ZERO(
225 handle->conn, sizeof(struct vfs_fsp_data) + ext_size);
226 if (ext == NULL) {
227 return NULL;
228 }
229
230 ext->owner = handle;
231 ext->next = fsp->vfs_extension;
232 ext->destroy = destroy_fn;
233 fsp->vfs_extension = ext;
234 return EXT_DATA_AREA(ext);
235 }
236
237 void vfs_remove_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
238 {
239 struct vfs_fsp_data *curr;
240 struct vfs_fsp_data *prev;
241
242 for (curr = fsp->vfs_extension, prev = NULL;
243 curr;
244 prev = curr, curr = curr->next) {
245 if (curr->owner == handle) {
246 if (prev) {
247 prev->next = curr->next;
248 } else {
249 fsp->vfs_extension = curr->next;
250 }
251 if (curr->destroy) {
252 curr->destroy(EXT_DATA_AREA(curr));
253 }
254 TALLOC_FREE(curr);
255 return;
256 }
257 }
258 }
259
260 void *vfs_memctx_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
261 {
262 struct vfs_fsp_data *head;
263
264 for (head = fsp->vfs_extension; head; head = head->next) {
265 if (head->owner == handle) {
266 return head;
267 }
268 }
269
270 return NULL;
271 }
272
273 void *vfs_fetch_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
274 {
275 struct vfs_fsp_data *head;
276
277 head = (struct vfs_fsp_data *)vfs_memctx_fsp_extension(handle, fsp);
278 if (head != NULL) {
279 return EXT_DATA_AREA(head);
280 }
281
282 return NULL;
283 }
284
285 #undef EXT_DATA_AREA
286
287 /*****************************************************************
288 Generic VFS init.
289 ******************************************************************/
290
291 bool smbd_vfs_init(connection_struct *conn)
292 {
293 const char **vfs_objects;
294 unsigned int i = 0;
295 int j = 0;
296
297 /* Normal share - initialise with disk access functions */
298 vfs_init_default(conn);
299 vfs_objects = lp_vfs_objects(SNUM(conn));
300
301 /* Override VFS functions if 'vfs object' was not specified*/
302 if (!vfs_objects || !vfs_objects[0])
303 return True;
304
305 for (i=0; vfs_objects[i] ;) {
306 i++;
307 }
308
309 for (j=i-1; j >= 0; j--) {
310 if (!vfs_init_custom(conn, vfs_objects[j])) {
311 DEBUG(0, ("smbd_vfs_init: vfs_init_custom failed for %s\n", vfs_objects[j]));
312 return False;
313 }
314 }
315 return True;
316 }
317
318 /*******************************************************************
319 Check if a file exists in the vfs.
320 ********************************************************************/
321
322 NTSTATUS vfs_file_exist(connection_struct *conn, struct smb_filename *smb_fname)
323 {
324 /* Only return OK if stat was successful and S_ISREG */
325 if ((SMB_VFS_STAT(conn, smb_fname) != -1) &&
326 S_ISREG(smb_fname->st.st_ex_mode)) {
327 return NT_STATUS_OK;
328 }
329
330 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
331 }
332
333 /****************************************************************************
334 Read data from fsp on the vfs. (note: EINTR re-read differs from vfs_write_data)
335 ****************************************************************************/
336
337 ssize_t vfs_read_data(files_struct *fsp, char *buf, size_t byte_count)
338 {
339 size_t total=0;
340
341 while (total < byte_count)
342 {
343 ssize_t ret = SMB_VFS_READ(fsp, buf + total,
344 byte_count - total);
345
346 if (ret == 0) return total;
347 if (ret == -1) {
348 if (errno == EINTR)
349 continue;
350 else
351 return -1;
352 }
353 total += ret;
354 }
355 return (ssize_t)total;
356 }
357
358 ssize_t vfs_pread_data(files_struct *fsp, char *buf,
359 size_t byte_count, SMB_OFF_T offset)
360 {
361 size_t total=0;
362
363 while (total < byte_count)
364 {
365 ssize_t ret = SMB_VFS_PREAD(fsp, buf + total,
366 byte_count - total, offset + total);
367
368 if (ret == 0) return total;
369 if (ret == -1) {
370 if (errno == EINTR)
371 continue;
372 else
373 return -1;
374 }
375 total += ret;
376 }
377 return (ssize_t)total;
378 }
379
380 /****************************************************************************
381 Write data to a fd on the vfs.
382 ****************************************************************************/
383
384 ssize_t vfs_write_data(struct smb_request *req,
385 files_struct *fsp,
386 const char *buffer,
387 size_t N)
388 {
389 size_t total=0;
390 ssize_t ret;
391
392 if (req && req->unread_bytes) {
393 SMB_ASSERT(req->unread_bytes == N);
394 /* VFS_RECVFILE must drain the socket
395 * before returning. */
396 req->unread_bytes = 0;
397 return SMB_VFS_RECVFILE(req->sconn->sock,
398 fsp,
399 (SMB_OFF_T)-1,
400 N);
401 }
402
403 while (total < N) {
404 ret = SMB_VFS_WRITE(fsp, buffer + total, N - total);
405
406 if (ret == -1)
407 return -1;
408 if (ret == 0)
409 return total;
410
411 total += ret;
412 }
413 return (ssize_t)total;
414 }
415
416 ssize_t vfs_pwrite_data(struct smb_request *req,
417 files_struct *fsp,
418 const char *buffer,
419 size_t N,
420 SMB_OFF_T offset)
421 {
422 size_t total=0;
423 ssize_t ret;
424
425 if (req && req->unread_bytes) {
426 SMB_ASSERT(req->unread_bytes == N);
427 /* VFS_RECVFILE must drain the socket
428 * before returning. */
429 req->unread_bytes = 0;
430 return SMB_VFS_RECVFILE(req->sconn->sock,
431 fsp,
432 offset,
433 N);
434 }
435
436 while (total < N) {
437 ret = SMB_VFS_PWRITE(fsp, buffer + total, N - total,
438 offset + total);
439
440 if (ret == -1)
441 return -1;
442 if (ret == 0)
443 return total;
444
445 total += ret;
446 }
447 return (ssize_t)total;
448 }
449 /****************************************************************************
450 An allocate file space call using the vfs interface.
451 Allocates space for a file from a filedescriptor.
452 Returns 0 on success, -1 on failure.
453 ****************************************************************************/
454
455 int vfs_allocate_file_space(files_struct *fsp, uint64_t len)
456 {
457 int ret;
458 connection_struct *conn = fsp->conn;
459 uint64_t space_avail;
460 uint64_t bsize,dfree,dsize;
461 NTSTATUS status;
462
463 /*
464 * Actually try and commit the space on disk....
465 */
466
467 DEBUG(10,("vfs_allocate_file_space: file %s, len %.0f\n",
468 fsp_str_dbg(fsp), (double)len));
469
470 if (((SMB_OFF_T)len) < 0) {
471 DEBUG(0,("vfs_allocate_file_space: %s negative len "
472 "requested.\n", fsp_str_dbg(fsp)));
473 errno = EINVAL;
474 return -1;
475 }
476
477 status = vfs_stat_fsp(fsp);
478 if (!NT_STATUS_IS_OK(status)) {
479 return -1;
480 }
481
482 if (len == (uint64_t)fsp->fsp_name->st.st_ex_size)
483 return 0;
484
485 if (len < (uint64_t)fsp->fsp_name->st.st_ex_size) {
486 /* Shrink - use ftruncate. */
487
488 DEBUG(10,("vfs_allocate_file_space: file %s, shrink. Current "
489 "size %.0f\n", fsp_str_dbg(fsp),
490 (double)fsp->fsp_name->st.st_ex_size));
491
492 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_ALLOC_SHRINK);
493
494 flush_write_cache(fsp, SIZECHANGE_FLUSH);
495 if ((ret = SMB_VFS_FTRUNCATE(fsp, (SMB_OFF_T)len)) != -1) {
496 set_filelen_write_cache(fsp, len);
497 }
498
499 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_ALLOC_SHRINK);
500
501 return ret;
502 }
503
504 /* Grow - we need to test if we have enough space. */
505
506 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_ALLOC_GROW);
507 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_ALLOC_GROW);
508
509 if (!lp_strict_allocate(SNUM(fsp->conn)))
510 return 0;
511
512 len -= fsp->fsp_name->st.st_ex_size;
513 len /= 1024; /* Len is now number of 1k blocks needed. */
514 space_avail = get_dfree_info(conn, fsp->fsp_name->base_name, false,
515 &bsize, &dfree, &dsize);
516 if (space_avail == (uint64_t)-1) {
517 return -1;
518 }
519
520 DEBUG(10,("vfs_allocate_file_space: file %s, grow. Current size %.0f, "
521 "needed blocks = %.0f, space avail = %.0f\n",
522 fsp_str_dbg(fsp), (double)fsp->fsp_name->st.st_ex_size, (double)len,
523 (double)space_avail));
524
525 if (len > space_avail) {
526 errno = ENOSPC;
527 return -1;
528 }
529
530 return 0;
531 }
532
533 /****************************************************************************
534 A vfs set_filelen call.
535 set the length of a file from a filedescriptor.
536 Returns 0 on success, -1 on failure.
537 ****************************************************************************/
538
539 int vfs_set_filelen(files_struct *fsp, SMB_OFF_T len)
540 {
541 int ret;
542
543 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_SET_FILE_LEN);
544
545 DEBUG(10,("vfs_set_filelen: ftruncate %s to len %.0f\n",
546 fsp_str_dbg(fsp), (double)len));
547 flush_write_cache(fsp, SIZECHANGE_FLUSH);
548 if ((ret = SMB_VFS_FTRUNCATE(fsp, len)) != -1) {
549 set_filelen_write_cache(fsp, len);
550 notify_fname(fsp->conn, NOTIFY_ACTION_MODIFIED,
551 FILE_NOTIFY_CHANGE_SIZE
552 | FILE_NOTIFY_CHANGE_ATTRIBUTES,
553 fsp->fsp_name->base_name);
554 }
555
556 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_SET_FILE_LEN);
557
558 return ret;
559 }
560
561 /****************************************************************************
562 A slow version of fallocate. Fallback code if SMB_VFS_FALLOCATE
563 fails. Needs to be outside of the default version of SMB_VFS_FALLOCATE
564 as this is also called from the default SMB_VFS_FTRUNCATE code.
565 Always extends the file size.
566 Returns 0 on success, errno on failure.
567 ****************************************************************************/
568
569 #define SPARSE_BUF_WRITE_SIZE (32*1024)
570
571 int vfs_slow_fallocate(files_struct *fsp, SMB_OFF_T offset, SMB_OFF_T len)
572 {
573 ssize_t pwrite_ret;
574 size_t total = 0;
575
576 if (!sparse_buf) {
577 sparse_buf = SMB_CALLOC_ARRAY(char, SPARSE_BUF_WRITE_SIZE);
578 if (!sparse_buf) {
579 errno = ENOMEM;
580 return ENOMEM;
581 }
582 }
583
584 while (total < len) {
585 size_t curr_write_size = MIN(SPARSE_BUF_WRITE_SIZE, (len - total));
586
587 pwrite_ret = SMB_VFS_PWRITE(fsp, sparse_buf, curr_write_size, offset + total);
588 if (pwrite_ret == -1) {
589 DEBUG(10,("vfs_slow_fallocate: SMB_VFS_PWRITE for file "
590 "%s failed with error %s\n",
591 fsp_str_dbg(fsp), strerror(errno)));
592 return errno;
593 }
594 total += pwrite_ret;
595 }
596
597 return 0;
598 }
599
600 /****************************************************************************
601 A vfs fill sparse call.
602 Writes zeros from the end of file to len, if len is greater than EOF.
603 Used only by strict_sync.
604 Returns 0 on success, -1 on failure.
605 ****************************************************************************/
606
607 int vfs_fill_sparse(files_struct *fsp, SMB_OFF_T len)
608 {
609 int ret;
610 NTSTATUS status;
611 SMB_OFF_T offset;
612 size_t num_to_write;
613
614 status = vfs_stat_fsp(fsp);
615 if (!NT_STATUS_IS_OK(status)) {
616 return -1;
617 }
618
619 if (len <= fsp->fsp_name->st.st_ex_size) {
620 return 0;
621 }
622
623 #ifdef S_ISFIFO
624 if (S_ISFIFO(fsp->fsp_name->st.st_ex_mode)) {
625 return 0;
626 }
627 #endif
628
629 DEBUG(10,("vfs_fill_sparse: write zeros in file %s from len %.0f to "
630 "len %.0f (%.0f bytes)\n", fsp_str_dbg(fsp),
631 (double)fsp->fsp_name->st.st_ex_size, (double)len,
632 (double)(len - fsp->fsp_name->st.st_ex_size)));
633
634 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_FILL_SPARSE);
635
636 flush_write_cache(fsp, SIZECHANGE_FLUSH);
637
638 offset = fsp->fsp_name->st.st_ex_size;
639 num_to_write = len - fsp->fsp_name->st.st_ex_size;
640
641 /* Only do this on non-stream file handles. */
642 if (fsp->base_fsp == NULL) {
643 /* for allocation try fallocate first. This can fail on some
644 * platforms e.g. when the filesystem doesn't support it and no
645 * emulation is being done by the libc (like on AIX with JFS1). In that
646 * case we do our own emulation. fallocate implementations can
647 * return ENOTSUP or EINVAL in cases like that. */
648 ret = SMB_VFS_FALLOCATE(fsp, VFS_FALLOCATE_EXTEND_SIZE,
649 offset, num_to_write);
650 if (ret == ENOSPC) {
651 errno = ENOSPC;
652 ret = -1;
653 goto out;
654 }
655 if (ret == 0) {
656 goto out;
657 }
658 DEBUG(10,("vfs_fill_sparse: SMB_VFS_FALLOCATE failed with "
659 "error %d. Falling back to slow manual allocation\n", ret));
660 }
661
662 ret = vfs_slow_fallocate(fsp, offset, num_to_write);
663 if (ret != 0) {
664 errno = ret;
665 ret = -1;
666 }
667
668 out:
669
670 if (ret == 0) {
671 set_filelen_write_cache(fsp, len);
672 }
673
674 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_FILL_SPARSE);
675 return ret;
676 }
677
678 /****************************************************************************
679 Transfer some data (n bytes) between two file_struct's.
680 ****************************************************************************/
681
682 static ssize_t vfs_read_fn(void *file, void *buf, size_t len)
683 {
684 struct files_struct *fsp = (struct files_struct *)file;
685
686 return SMB_VFS_READ(fsp, buf, len);
687 }
688
689 static ssize_t vfs_write_fn(void *file, const void *buf, size_t len)
690 {
691 struct files_struct *fsp = (struct files_struct *)file;
692
693 return SMB_VFS_WRITE(fsp, buf, len);
694 }
695
696 SMB_OFF_T vfs_transfer_file(files_struct *in, files_struct *out, SMB_OFF_T n)
697 {
698 return transfer_file_internal((void *)in, (void *)out, n,
699 vfs_read_fn, vfs_write_fn);
700 }
701
702 /*******************************************************************
703 A vfs_readdir wrapper which just returns the file name.
704 ********************************************************************/
705
706 const char *vfs_readdirname(connection_struct *conn, void *p,
707 SMB_STRUCT_STAT *sbuf, char **talloced)
708 {
709 SMB_STRUCT_DIRENT *ptr= NULL;
710 const char *dname;
711 char *translated;
712 NTSTATUS status;
713
714 if (!p)
715 return(NULL);
716
717 ptr = SMB_VFS_READDIR(conn, (DIR *)p, sbuf);
718 if (!ptr)
719 return(NULL);
720
721 dname = ptr->d_name;
722
723
724 #ifdef NEXT2
725 if (telldir(p) < 0)
726 return(NULL);
727 #endif
728
729 #ifdef HAVE_BROKEN_READDIR_NAME
730 /* using /usr/ucb/cc is BAD */
731 dname = dname - 2;
732 #endif
733
734 status = SMB_VFS_TRANSLATE_NAME(conn, dname, vfs_translate_to_windows,
735 talloc_tos(), &translated);
736 if (NT_STATUS_EQUAL(status, NT_STATUS_NONE_MAPPED)) {
737 *talloced = NULL;
738 return dname;
739 }
740 *talloced = translated;
741 if (!NT_STATUS_IS_OK(status)) {
742 return NULL;
743 }
744 return translated;
745 }
746
747 /*******************************************************************
748 A wrapper for vfs_chdir().
749 ********************************************************************/
750
751 int vfs_ChDir(connection_struct *conn, const char *path)
752 {
753 int res;
754
755 if (!LastDir) {
756 LastDir = SMB_STRDUP("");
757 }
758
759 if (strcsequal(path,"."))
760 return(0);
761
762 if (*path == '/' && strcsequal(LastDir,path))
763 return(0);
764
765 DEBUG(4,("vfs_ChDir to %s\n",path));
766
767 res = SMB_VFS_CHDIR(conn,path);
768 if (!res) {
769 SAFE_FREE(LastDir);
770 LastDir = SMB_STRDUP(path);
771 }
772 return(res);
773 }
774
775 /*******************************************************************
776 Return the absolute current directory path - given a UNIX pathname.
777 Note that this path is returned in DOS format, not UNIX
778 format. Note this can be called with conn == NULL.
779 ********************************************************************/
780
781 char *vfs_GetWd(TALLOC_CTX *ctx, connection_struct *conn)
782 {
783 char s[PATH_MAX+1];
784 char *result = NULL;
785 DATA_BLOB cache_value;
786 struct file_id key;
787 struct smb_filename *smb_fname_dot = NULL;
788 struct smb_filename *smb_fname_full = NULL;
789 NTSTATUS status;
790
791 *s = 0;
792
793 if (!lp_getwd_cache()) {
794 goto nocache;
795 }
796
797 status = create_synthetic_smb_fname(ctx, ".", NULL, NULL,
798 &smb_fname_dot);
799 if (!NT_STATUS_IS_OK(status)) {
800 errno = map_errno_from_nt_status(status);
801 goto out;
802 }
803
804 if (SMB_VFS_STAT(conn, smb_fname_dot) == -1) {
805 /*
806 * Known to fail for root: the directory may be NFS-mounted
807 * and exported with root_squash (so has no root access).
808 */
809 DEBUG(1,("vfs_GetWd: couldn't stat \".\" error %s "
810 "(NFS problem ?)\n", strerror(errno) ));
811 goto nocache;
812 }
813
814 key = vfs_file_id_from_sbuf(conn, &smb_fname_dot->st);
815
816 if (!memcache_lookup(smbd_memcache(), GETWD_CACHE,
817 data_blob_const(&key, sizeof(key)),
818 &cache_value)) {
819 goto nocache;
820 }
821
822 SMB_ASSERT((cache_value.length > 0)
823 && (cache_value.data[cache_value.length-1] == '\0'));
824
825 status = create_synthetic_smb_fname(ctx, (char *)cache_value.data,
826 NULL, NULL, &smb_fname_full);
827 if (!NT_STATUS_IS_OK(status)) {
828 errno = map_errno_from_nt_status(status);
829 goto out;
830 }
831
832 if ((SMB_VFS_STAT(conn, smb_fname_full) == 0) &&
833 (smb_fname_dot->st.st_ex_dev == smb_fname_full->st.st_ex_dev) &&
834 (smb_fname_dot->st.st_ex_ino == smb_fname_full->st.st_ex_ino) &&
835 (S_ISDIR(smb_fname_dot->st.st_ex_mode))) {
836 /*
837 * Ok, we're done
838 */
839 result = talloc_strdup(ctx, smb_fname_full->base_name);
840 if (result == NULL) {
841 errno = ENOMEM;
842 }
843 goto out;
844 }
845
846 nocache:
847
848 /*
849 * We don't have the information to hand so rely on traditional
850 * methods. The very slow getcwd, which spawns a process on some
851 * systems, or the not quite so bad getwd.
852 */
853
854 if (!SMB_VFS_GETWD(conn,s)) {
855 DEBUG(0, ("vfs_GetWd: SMB_VFS_GETWD call failed: %s\n",
856 strerror(errno)));
857 goto out;
858 }
859
860 if (lp_getwd_cache() && VALID_STAT(smb_fname_dot->st)) {
861 key = vfs_file_id_from_sbuf(conn, &smb_fname_dot->st);
862
863 memcache_add(smbd_memcache(), GETWD_CACHE,
864 data_blob_const(&key, sizeof(key)),
865 data_blob_const(s, strlen(s)+1));
866 }
867
868 result = talloc_strdup(ctx, s);
869 if (result == NULL) {
870 errno = ENOMEM;
871 }
872
873 out:
874 TALLOC_FREE(smb_fname_dot);
875 TALLOC_FREE(smb_fname_full);
876 return result;
877 }
878
879 /*******************************************************************
880 Reduce a file name, removing .. elements and checking that
881 it is below dir in the heirachy. This uses realpath.
882 ********************************************************************/
883
884 NTSTATUS check_reduced_name(connection_struct *conn, const char *fname)
885 {
886 char *resolved_name = NULL;
887 char *p = NULL;
888
889 DEBUG(3,("check_reduced_name [%s] [%s]\n", fname, conn->connectpath));
890
891 resolved_name = SMB_VFS_REALPATH(conn,fname);
892
893 if (!resolved_name) {
894 switch (errno) {
895 case ENOTDIR:
896 DEBUG(3,("check_reduced_name: Component not a "
897 "directory in getting realpath for "
898 "%s\n", fname));
899 return NT_STATUS_OBJECT_PATH_NOT_FOUND;
900 case ENOENT:
901 {
902 TALLOC_CTX *ctx = talloc_tos();
903 char *tmp_fname = NULL;
904 char *last_component = NULL;
905 /* Last component didn't exist. Remove it and try and canonicalise the directory. */
906
907 tmp_fname = talloc_strdup(ctx, fname);
908 if (!tmp_fname) {
909 return NT_STATUS_NO_MEMORY;
910 }
911 p = strrchr_m(tmp_fname, '/');
912 if (p) {
913 *p++ = '\0';
914 last_component = p;
915 } else {
916 last_component = tmp_fname;
917 tmp_fname = talloc_strdup(ctx,
918 ".");
919 if (!tmp_fname) {
920 return NT_STATUS_NO_MEMORY;
921 }
922 }
923
924 resolved_name = SMB_VFS_REALPATH(conn,tmp_fname);
925 if (!resolved_name) {
926 NTSTATUS status = map_nt_error_from_unix(errno);
927
928 if (errno == ENOENT || errno == ENOTDIR) {
929 status = NT_STATUS_OBJECT_PATH_NOT_FOUND;
930 }
931
932 DEBUG(3,("check_reduce_named: "
933 "couldn't get realpath for "
934 "%s (%s)\n",
935 fname,
936 nt_errstr(status)));
937 return status;
938 }
939 tmp_fname = talloc_asprintf(ctx,
940 "%s/%s",
941 resolved_name,
942 last_component);
943 if (!tmp_fname) {
944 return NT_STATUS_NO_MEMORY;
945 }
946 SAFE_FREE(resolved_name);
947 resolved_name = SMB_STRDUP(tmp_fname);
948 if (!resolved_name) {
949 DEBUG(0, ("check_reduced_name: malloc "
950 "fail for %s\n", tmp_fname));
951 return NT_STATUS_NO_MEMORY;
952 }
953 break;
954 }
955 default:
956 DEBUG(3,("check_reduced_name: couldn't get "
957 "realpath for %s\n", fname));
958 return map_nt_error_from_unix(errno);
959 }
960 }
961
962 DEBUG(10,("check_reduced_name realpath [%s] -> [%s]\n", fname,
963 resolved_name));
964
965 if (*resolved_name != '/') {
966 DEBUG(0,("check_reduced_name: realpath doesn't return "
967 "absolute paths !\n"));
968 SAFE_FREE(resolved_name);
969 return NT_STATUS_OBJECT_NAME_INVALID;
970 }
971
972 /* Check for widelinks allowed. */
973 if (!lp_widelinks(SNUM(conn))) {
974 const char *conn_rootdir;
975
976 conn_rootdir = SMB_VFS_CONNECTPATH(conn, fname);
977 if (conn_rootdir == NULL) {
978 DEBUG(2, ("check_reduced_name: Could not get "
979 "conn_rootdir\n"));
980 SAFE_FREE(resolved_name);
981 return NT_STATUS_ACCESS_DENIED;
982 }
983
984 if (strncmp(conn_rootdir, resolved_name,
985 strlen(conn_rootdir)) != 0) {
986 DEBUG(2, ("check_reduced_name: Bad access "
987 "attempt: %s is a symlink outside the "
988 "share path\n", fname));
989 SAFE_FREE(resolved_name);
990 return NT_STATUS_ACCESS_DENIED;
991 }
992 }
993
994 /* Check if we are allowing users to follow symlinks */
995 /* Patch from David Clerc <David.Clerc@cui.unige.ch>
996 University of Geneva */
997
998 #ifdef S_ISLNK
999 if (!lp_symlinks(SNUM(conn))) {
1000 struct smb_filename *smb_fname = NULL;
1001 NTSTATUS status;
1002
1003 status = create_synthetic_smb_fname(talloc_tos(), fname, NULL,
1004 NULL, &smb_fname);
1005 if (!NT_STATUS_IS_OK(status)) {
1006 SAFE_FREE(resolved_name);
1007 return status;
1008 }
1009
1010 if ( (SMB_VFS_LSTAT(conn, smb_fname) != -1) &&
1011 (S_ISLNK(smb_fname->st.st_ex_mode)) ) {
1012 SAFE_FREE(resolved_name);
1013 DEBUG(3,("check_reduced_name: denied: file path name "
1014 "%s is a symlink\n",resolved_name));
1015 TALLOC_FREE(smb_fname);
1016 return NT_STATUS_ACCESS_DENIED;
1017 }
1018 TALLOC_FREE(smb_fname);
1019 }
1020 #endif
1021
1022 DEBUG(3,("check_reduced_name: %s reduced to %s\n", fname,
1023 resolved_name));
1024 SAFE_FREE(resolved_name);
1025 return NT_STATUS_OK;
1026 }
1027
1028 /**
1029 * XXX: This is temporary and there should be no callers of this once
1030 * smb_filename is plumbed through all path based operations.
1031 */
1032 int vfs_stat_smb_fname(struct connection_struct *conn, const char *fname,
1033 SMB_STRUCT_STAT *psbuf)
1034 {
1035 struct smb_filename *smb_fname = NULL;
1036 NTSTATUS status;
1037 int ret;
1038
1039 status = create_synthetic_smb_fname_split(talloc_tos(), fname, NULL,
1040 &smb_fname);
1041 if (!NT_STATUS_IS_OK(status)) {
1042 errno = map_errno_from_nt_status(status);
1043 return -1;
1044 }
1045
1046 if (lp_posix_pathnames()) {
1047 ret = SMB_VFS_LSTAT(conn, smb_fname);
1048 } else {
1049 ret = SMB_VFS_STAT(conn, smb_fname);
1050 }
1051
1052 if (ret != -1) {
1053 *psbuf = smb_fname->st;
1054 }
1055
1056 TALLOC_FREE(smb_fname);
1057 return ret;
1058 }
1059
1060 /**
1061 * XXX: This is temporary and there should be no callers of this once
1062 * smb_filename is plumbed through all path based operations.
1063 */
1064 int vfs_lstat_smb_fname(struct connection_struct *conn, const char *fname,
1065 SMB_STRUCT_STAT *psbuf)
1066 {
1067 struct smb_filename *smb_fname = NULL;
1068 NTSTATUS status;
1069 int ret;
1070
1071 status = create_synthetic_smb_fname_split(talloc_tos(), fname, NULL,
1072 &smb_fname);
1073 if (!NT_STATUS_IS_OK(status)) {
1074 errno = map_errno_from_nt_status(status);
1075 return -1;
1076 }
1077
1078 ret = SMB_VFS_LSTAT(conn, smb_fname);
1079 if (ret != -1) {
1080 *psbuf = smb_fname->st;
1081 }
1082
1083 TALLOC_FREE(smb_fname);
1084 return ret;
1085 }
1086
1087 /**
1088 * Ensure LSTAT is called for POSIX paths.
1089 */
1090
1091 NTSTATUS vfs_stat_fsp(files_struct *fsp)
1092 {
1093 int ret;
1094
1095 if(fsp->is_directory || fsp->fh->fd == -1) {
1096 if (fsp->posix_open) {
1097 ret = SMB_VFS_LSTAT(fsp->conn, fsp->fsp_name);
1098 } else {
1099 ret = SMB_VFS_STAT(fsp->conn, fsp->fsp_name);
1100 }
1101 if (ret == -1) {
1102 return map_nt_error_from_unix(errno);
1103 }
1104 } else {
1105 if(SMB_VFS_FSTAT(fsp, &fsp->fsp_name->st) != 0) {
1106 return map_nt_error_from_unix(errno);
1107 }
1108 }
1109 return NT_STATUS_OK;
1110 }
1111
1112 /*
1113 generate a file_id from a stat structure
1114 */
1115 struct file_id vfs_file_id_from_sbuf(connection_struct *conn, const SMB_STRUCT_STAT *sbuf)
1116 {
1117 return SMB_VFS_FILE_ID_CREATE(conn, sbuf);
1118 }
1119
1120 int smb_vfs_call_connect(struct vfs_handle_struct *handle,
1121 const char *service, const char *user)
1122 {
1123 VFS_FIND(connect_fn);
1124 return handle->fns->connect_fn(handle, service, user);
1125 }
1126
1127 void smb_vfs_call_disconnect(struct vfs_handle_struct *handle)
1128 {
1129 VFS_FIND(disconnect);
1130 handle->fns->disconnect(handle);
1131 }
1132
1133 uint64_t smb_vfs_call_disk_free(struct vfs_handle_struct *handle,
1134 const char *path, bool small_query,
1135 uint64_t *bsize, uint64_t *dfree,
1136 uint64_t *dsize)
1137 {
1138 VFS_FIND(disk_free);
1139 return handle->fns->disk_free(handle, path, small_query, bsize, dfree,
1140 dsize);
1141 }
1142
1143 int smb_vfs_call_get_quota(struct vfs_handle_struct *handle,
1144 enum SMB_QUOTA_TYPE qtype, unid_t id,
1145 SMB_DISK_QUOTA *qt)
1146 {
1147 VFS_FIND(get_quota);
1148 return handle->fns->get_quota(handle, qtype, id, qt);
1149 }
1150
1151 int smb_vfs_call_set_quota(struct vfs_handle_struct *handle,
1152 enum SMB_QUOTA_TYPE qtype, unid_t id,
1153 SMB_DISK_QUOTA *qt)
1154 {
1155 VFS_FIND(set_quota);
1156 return handle->fns->set_quota(handle, qtype, id, qt);
1157 }
1158
1159 int smb_vfs_call_get_shadow_copy_data(struct vfs_handle_struct *handle,
1160 struct files_struct *fsp,
1161 SHADOW_COPY_DATA *shadow_copy_data,
1162 bool labels)
1163 {
1164 VFS_FIND(get_shadow_copy_data);
1165 return handle->fns->get_shadow_copy_data(handle, fsp, shadow_copy_data,
1166 labels);
1167 }
1168 int smb_vfs_call_statvfs(struct vfs_handle_struct *handle, const char *path,
1169 struct vfs_statvfs_struct *statbuf)
1170 {
1171 VFS_FIND(statvfs);
1172 return handle->fns->statvfs(handle, path, statbuf);
1173 }
1174
1175 uint32_t smb_vfs_call_fs_capabilities(struct vfs_handle_struct *handle,
1176 enum timestamp_set_resolution *p_ts_res)
1177 {
1178 VFS_FIND(fs_capabilities);
1179 return handle->fns->fs_capabilities(handle, p_ts_res);
1180 }
1181
1182 SMB_STRUCT_DIR *smb_vfs_call_opendir(struct vfs_handle_struct *handle,
1183 const char *fname, const char *mask,
1184 uint32 attributes)
1185 {
1186 VFS_FIND(opendir);
1187 return handle->fns->opendir(handle, fname, mask, attributes);
1188 }
1189
1190 SMB_STRUCT_DIRENT *smb_vfs_call_readdir(struct vfs_handle_struct *handle,
1191 SMB_STRUCT_DIR *dirp,
1192 SMB_STRUCT_STAT *sbuf)
1193 {
1194 VFS_FIND(readdir);
1195 return handle->fns->readdir(handle, dirp, sbuf);
1196 }
1197
1198 void smb_vfs_call_seekdir(struct vfs_handle_struct *handle,
1199 SMB_STRUCT_DIR *dirp, long offset)
1200 {
1201 VFS_FIND(seekdir);
1202 handle->fns->seekdir(handle, dirp, offset);
1203 }
1204
1205 long smb_vfs_call_telldir(struct vfs_handle_struct *handle,
1206 SMB_STRUCT_DIR *dirp)
1207 {
1208 VFS_FIND(telldir);
1209 return handle->fns->telldir(handle, dirp);
1210 }
1211
1212 void smb_vfs_call_rewind_dir(struct vfs_handle_struct *handle,
1213 SMB_STRUCT_DIR *dirp)
1214 {
1215 VFS_FIND(rewind_dir);
1216 handle->fns->rewind_dir(handle, dirp);
1217 }
1218
1219 int smb_vfs_call_mkdir(struct vfs_handle_struct *handle, const char *path,
1220 mode_t mode)
1221 {
1222 VFS_FIND(mkdir);
1223 return handle->fns->mkdir(handle, path, mode);
1224 }
1225
1226 int smb_vfs_call_rmdir(struct vfs_handle_struct *handle, const char *path)
1227 {
1228 VFS_FIND(rmdir);
1229 return handle->fns->rmdir(handle, path);
1230 }
1231
1232 int smb_vfs_call_closedir(struct vfs_handle_struct *handle,
1233 SMB_STRUCT_DIR *dir)
1234 {
1235 VFS_FIND(closedir);
1236 return handle->fns->closedir(handle, dir);
1237 }
1238
1239 void smb_vfs_call_init_search_op(struct vfs_handle_struct *handle,
1240 SMB_STRUCT_DIR *dirp)
1241 {
1242 VFS_FIND(init_search_op);
1243 handle->fns->init_search_op(handle, dirp);
1244 }
1245
1246 int smb_vfs_call_open(struct vfs_handle_struct *handle,
1247 struct smb_filename *smb_fname, struct files_struct *fsp,
1248 int flags, mode_t mode)
1249 {
1250 VFS_FIND(open);
1251 return handle->fns->open(handle, smb_fname, fsp, flags, mode);
1252 }
1253
1254 NTSTATUS smb_vfs_call_create_file(struct vfs_handle_struct *handle,
1255 struct smb_request *req,
1256 uint16_t root_dir_fid,
1257 struct smb_filename *smb_fname,
1258 uint32_t access_mask,
1259 uint32_t share_access,
1260 uint32_t create_disposition,
1261 uint32_t create_options,
1262 uint32_t file_attributes,
1263 uint32_t oplock_request,
1264 uint64_t allocation_size,
1265 uint32_t private_flags,
1266 struct security_descriptor *sd,
1267 struct ea_list *ea_list,
1268 files_struct **result,
1269 int *pinfo)
1270 {
1271 VFS_FIND(create_file);
1272 return handle->fns->create_file(
1273 handle, req, root_dir_fid, smb_fname, access_mask,
1274 share_access, create_disposition, create_options,
1275 file_attributes, oplock_request, allocation_size,
1276 private_flags, sd, ea_list,
1277 result, pinfo);
1278 }
1279
1280 int smb_vfs_call_close_fn(struct vfs_handle_struct *handle,
1281 struct files_struct *fsp)
1282 {
1283 VFS_FIND(close_fn);
1284 return handle->fns->close_fn(handle, fsp);
1285 }
1286
1287 ssize_t smb_vfs_call_vfs_read(struct vfs_handle_struct *handle,
1288 struct files_struct *fsp, void *data, size_t n)
1289 {
1290 VFS_FIND(vfs_read);
1291 return handle->fns->vfs_read(handle, fsp, data, n);
1292 }
1293
1294 ssize_t smb_vfs_call_pread(struct vfs_handle_struct *handle,
1295 struct files_struct *fsp, void *data, size_t n,
1296 SMB_OFF_T offset)
1297 {
1298 VFS_FIND(pread);
1299 return handle->fns->pread(handle, fsp, data, n, offset);
1300 }
1301
1302 ssize_t smb_vfs_call_write(struct vfs_handle_struct *handle,
1303 struct files_struct *fsp, const void *data,
1304 size_t n)
1305 {
1306 VFS_FIND(write);
1307 return handle->fns->write(handle, fsp, data, n);
1308 }
1309
1310 ssize_t smb_vfs_call_pwrite(struct vfs_handle_struct *handle,
1311 struct files_struct *fsp, const void *data,
1312 size_t n, SMB_OFF_T offset)
1313 {
1314 VFS_FIND(pwrite);
1315 return handle->fns->pwrite(handle, fsp, data, n, offset);
1316 }
1317
1318 SMB_OFF_T smb_vfs_call_lseek(struct vfs_handle_struct *handle,
1319 struct files_struct *fsp, SMB_OFF_T offset,
1320 int whence)
1321 {
1322 VFS_FIND(lseek);
1323 return handle->fns->lseek(handle, fsp, offset, whence);
1324 }
1325
1326 ssize_t smb_vfs_call_sendfile(struct vfs_handle_struct *handle, int tofd,
1327 files_struct *fromfsp, const DATA_BLOB *header,
1328 SMB_OFF_T offset, size_t count)
1329 {
1330 VFS_FIND(sendfile);
1331 return handle->fns->sendfile(handle, tofd, fromfsp, header, offset,
1332 count);
1333 }
1334
1335 ssize_t smb_vfs_call_recvfile(struct vfs_handle_struct *handle, int fromfd,
1336 files_struct *tofsp, SMB_OFF_T offset,
1337 size_t count)
1338 {
1339 VFS_FIND(recvfile);
1340 return handle->fns->recvfile(handle, fromfd, tofsp, offset, count);
1341 }
1342
1343 int smb_vfs_call_rename(struct vfs_handle_struct *handle,
1344 const struct smb_filename *smb_fname_src,
1345 const struct smb_filename *smb_fname_dst)
1346 {
1347 VFS_FIND(rename);
1348 return handle->fns->rename(handle, smb_fname_src, smb_fname_dst);
1349 }
1350
1351 int smb_vfs_call_fsync(struct vfs_handle_struct *handle,
1352 struct files_struct *fsp)
1353 {
1354 VFS_FIND(fsync);
1355 return handle->fns->fsync(handle, fsp);
1356 }
1357
1358 int smb_vfs_call_stat(struct vfs_handle_struct *handle,
1359 struct smb_filename *smb_fname)
1360 {
1361 VFS_FIND(stat);
1362 return handle->fns->stat(handle, smb_fname);
1363 }
1364
1365 int smb_vfs_call_fstat(struct vfs_handle_struct *handle,
1366 struct files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1367 {
1368 VFS_FIND(fstat);
1369 return handle->fns->fstat(handle, fsp, sbuf);
1370 }
1371
1372 int smb_vfs_call_lstat(struct vfs_handle_struct *handle,
1373 struct smb_filename *smb_filename)
1374 {
1375 VFS_FIND(lstat);
1376 return handle->fns->lstat(handle, smb_filename);
1377 }
1378
1379 uint64_t smb_vfs_call_get_alloc_size(struct vfs_handle_struct *handle,
1380 struct files_struct *fsp,
1381 const SMB_STRUCT_STAT *sbuf)
1382 {
1383 VFS_FIND(get_alloc_size);
1384 return handle->fns->get_alloc_size(handle, fsp, sbuf);
1385 }
1386
1387 int smb_vfs_call_unlink(struct vfs_handle_struct *handle,
1388 const struct smb_filename *smb_fname)
1389 {
1390 VFS_FIND(unlink);
1391 return handle->fns->unlink(handle, smb_fname);
1392 }
1393
1394 int smb_vfs_call_chmod(struct vfs_handle_struct *handle, const char *path,
1395 mode_t mode)
1396 {
1397 VFS_FIND(chmod);
1398 return handle->fns->chmod(handle, path, mode);
1399 }
1400
1401 int smb_vfs_call_fchmod(struct vfs_handle_struct *handle,
1402 struct files_struct *fsp, mode_t mode)
1403 {
1404 VFS_FIND(fchmod);
1405 return handle->fns->fchmod(handle, fsp, mode);
1406 }
1407
1408 int smb_vfs_call_chown(struct vfs_handle_struct *handle, const char *path,
1409 uid_t uid, gid_t gid)
1410 {
1411 VFS_FIND(chown);
1412 return handle->fns->chown(handle, path, uid, gid);
1413 }
1414
1415 int smb_vfs_call_fchown(struct vfs_handle_struct *handle,
1416 struct files_struct *fsp, uid_t uid, gid_t gid)
1417 {
1418 VFS_FIND(fchown);
1419 return handle->fns->fchown(handle, fsp, uid, gid);
1420 }
1421
1422 int smb_vfs_call_lchown(struct vfs_handle_struct *handle, const char *path,
1423 uid_t uid, gid_t gid)
1424 {
1425 VFS_FIND(lchown);
1426 return handle->fns->lchown(handle, path, uid, gid);
1427 }
1428
1429 int smb_vfs_call_chdir(struct vfs_handle_struct *handle, const char *path)
1430 {
1431 VFS_FIND(chdir);
1432 return handle->fns->chdir(handle, path);
1433 }
1434
1435 char *smb_vfs_call_getwd(struct vfs_handle_struct *handle, char *buf)
1436 {
1437 VFS_FIND(getwd);
1438 return handle->fns->getwd(handle, buf);
1439 }
1440
1441 int smb_vfs_call_ntimes(struct vfs_handle_struct *handle,
1442 const struct smb_filename *smb_fname,
1443 struct smb_file_time *ft)
1444 {
1445 VFS_FIND(ntimes);
1446 return handle->fns->ntimes(handle, smb_fname, ft);
1447 }
1448
1449 int smb_vfs_call_ftruncate(struct vfs_handle_struct *handle,
1450 struct files_struct *fsp, SMB_OFF_T offset)
1451 {
1452 VFS_FIND(ftruncate);
1453 return handle->fns->ftruncate(handle, fsp, offset);
1454 }
1455
1456 int smb_vfs_call_fallocate(struct vfs_handle_struct *handle,
1457 struct files_struct *fsp,
1458 enum vfs_fallocate_mode mode,
1459 SMB_OFF_T offset,
1460 SMB_OFF_T len)
1461 {
1462 VFS_FIND(fallocate);
1463 return handle->fns->fallocate(handle, fsp, mode, offset, len);
1464 }
1465
1466 int smb_vfs_call_kernel_flock(struct vfs_handle_struct *handle,
1467 struct files_struct *fsp, uint32 share_mode,
1468 uint32_t access_mask)
1469 {
1470 VFS_FIND(kernel_flock);
1471 return handle->fns->kernel_flock(handle, fsp, share_mode,
1472 access_mask);
1473 }
1474
1475 int smb_vfs_call_linux_setlease(struct vfs_handle_struct *handle,
1476 struct files_struct *fsp, int leasetype)
1477 {
1478 VFS_FIND(linux_setlease);
1479 return handle->fns->linux_setlease(handle, fsp, leasetype);
1480 }
1481
1482 int smb_vfs_call_symlink(struct vfs_handle_struct *handle, const char *oldpath,
1483 const char *newpath)
1484 {
1485 VFS_FIND(symlink);
1486 return handle->fns->symlink(handle, oldpath, newpath);
1487 }
1488
1489 int smb_vfs_call_vfs_readlink(struct vfs_handle_struct *handle,
1490 const char *path, char *buf, size_t bufsiz)
1491 {
1492 VFS_FIND(vfs_readlink);
1493 return handle->fns->vfs_readlink(handle, path, buf, bufsiz);
1494 }
1495
1496 int smb_vfs_call_link(struct vfs_handle_struct *handle, const char *oldpath,
1497 const char *newpath)
1498 {
1499 VFS_FIND(link);
1500 return handle->fns->link(handle, oldpath, newpath);
1501 }
1502
1503 int smb_vfs_call_mknod(struct vfs_handle_struct *handle, const char *path,
1504 mode_t mode, SMB_DEV_T dev)
1505 {
1506 VFS_FIND(mknod);
1507 return handle->fns->mknod(handle, path, mode, dev);
1508 }
1509
1510 char *smb_vfs_call_realpath(struct vfs_handle_struct *handle, const char *path)
1511 {
1512 VFS_FIND(realpath);
1513 return handle->fns->realpath(handle, path);
1514 }
1515
1516 NTSTATUS smb_vfs_call_notify_watch(struct vfs_handle_struct *handle,
1517 struct sys_notify_context *ctx,
1518 struct notify_entry *e,
1519 void (*callback)(struct sys_notify_context *ctx,
1520 void *private_data,
1521 struct notify_event *ev),
1522 void *private_data, void *handle_p)
1523 {
1524 VFS_FIND(notify_watch);
1525 return handle->fns->notify_watch(handle, ctx, e, callback,
1526 private_data, handle_p);
1527 }
1528
1529 int smb_vfs_call_chflags(struct vfs_handle_struct *handle, const char *path,
1530 unsigned int flags)
1531 {
1532 VFS_FIND(chflags);
1533 return handle->fns->chflags(handle, path, flags);
1534 }
1535
1536 struct file_id smb_vfs_call_file_id_create(struct vfs_handle_struct *handle,
1537 const SMB_STRUCT_STAT *sbuf)
1538 {
1539 VFS_FIND(file_id_create);
1540 return handle->fns->file_id_create(handle, sbuf);
1541 }
1542
1543 NTSTATUS smb_vfs_call_streaminfo(struct vfs_handle_struct *handle,
1544 struct files_struct *fsp,
1545 const char *fname,
1546 TALLOC_CTX *mem_ctx,
1547 unsigned int *num_streams,
1548 struct stream_struct **streams)
1549 {
1550 VFS_FIND(streaminfo);
1551 return handle->fns->streaminfo(handle, fsp, fname, mem_ctx,
1552 num_streams, streams);
1553 }
1554
1555 int smb_vfs_call_get_real_filename(struct vfs_handle_struct *handle,
1556 const char *path, const char *name,
1557 TALLOC_CTX *mem_ctx, char **found_name)
1558 {
1559 VFS_FIND(get_real_filename);
1560 return handle->fns->get_real_filename(handle, path, name, mem_ctx,
1561 found_name);
1562 }
1563
1564 const char *smb_vfs_call_connectpath(struct vfs_handle_struct *handle,
1565 const char *filename)
1566 {
1567 VFS_FIND(connectpath);
1568 return handle->fns->connectpath(handle, filename);
1569 }
1570
1571 bool smb_vfs_call_strict_lock(struct vfs_handle_struct *handle,
1572 struct files_struct *fsp,
1573 struct lock_struct *plock)
1574 {
1575 VFS_FIND(strict_lock);
1576 return handle->fns->strict_lock(handle, fsp, plock);
1577 }
1578
1579 void smb_vfs_call_strict_unlock(struct vfs_handle_struct *handle,
1580 struct files_struct *fsp,
1581 struct lock_struct *plock)
1582 {
1583 VFS_FIND(strict_unlock);
1584 handle->fns->strict_unlock(handle, fsp, plock);
1585 }
1586
1587 NTSTATUS smb_vfs_call_translate_name(struct vfs_handle_struct *handle,
1588 const char *name,
1589 enum vfs_translate_direction direction,
1590 TALLOC_CTX *mem_ctx,
1591 char **mapped_name)
1592 {
1593 VFS_FIND(translate_name);
1594 return handle->fns->translate_name(handle, name, direction, mem_ctx,
1595 mapped_name);
1596 }
1597
1598 NTSTATUS smb_vfs_call_fget_nt_acl(struct vfs_handle_struct *handle,
1599 struct files_struct *fsp,
1600 uint32 security_info,
1601 struct security_descriptor **ppdesc)
1602 {
1603 VFS_FIND(fget_nt_acl);
1604 return handle->fns->fget_nt_acl(handle, fsp, security_info,
1605 ppdesc);
1606 }
1607
1608 NTSTATUS smb_vfs_call_get_nt_acl(struct vfs_handle_struct *handle,
1609 const char *name,
1610 uint32 security_info,
1611 struct security_descriptor **ppdesc)
1612 {
1613 VFS_FIND(get_nt_acl);
1614 return handle->fns->get_nt_acl(handle, name, security_info, ppdesc);
1615 }
1616
1617 NTSTATUS smb_vfs_call_fset_nt_acl(struct vfs_handle_struct *handle,
1618 struct files_struct *fsp,
1619 uint32 security_info_sent,
1620 const struct security_descriptor *psd)
1621 {
1622 VFS_FIND(fset_nt_acl);
1623 return handle->fns->fset_nt_acl(handle, fsp, security_info_sent, psd);
1624 }
1625
1626 int smb_vfs_call_chmod_acl(struct vfs_handle_struct *handle, const char *name,
1627 mode_t mode)
1628 {
1629 VFS_FIND(chmod_acl);
1630 return handle->fns->chmod_acl(handle, name, mode);
1631 }
1632
1633 int smb_vfs_call_fchmod_acl(struct vfs_handle_struct *handle,
1634 struct files_struct *fsp, mode_t mode)
1635 {
1636 VFS_FIND(fchmod_acl);
1637 return handle->fns->fchmod_acl(handle, fsp, mode);
1638 }
1639
1640 int smb_vfs_call_sys_acl_get_entry(struct vfs_handle_struct *handle,
1641 SMB_ACL_T theacl, int entry_id,
1642 SMB_ACL_ENTRY_T *entry_p)
1643 {
1644 VFS_FIND(sys_acl_get_entry);
1645 return handle->fns->sys_acl_get_entry(handle, theacl, entry_id,
1646 entry_p);
1647 }
1648
1649 int smb_vfs_call_sys_acl_get_tag_type(struct vfs_handle_struct *handle,
1650 SMB_ACL_ENTRY_T entry_d,
1651 SMB_ACL_TAG_T *tag_type_p)
1652 {
1653 VFS_FIND(sys_acl_get_tag_type);
1654 return handle->fns->sys_acl_get_tag_type(handle, entry_d, tag_type_p);
1655 }
1656
1657 int smb_vfs_call_sys_acl_get_permset(struct vfs_handle_struct *handle,
1658 SMB_ACL_ENTRY_T entry_d,
1659 SMB_ACL_PERMSET_T *permset_p)
1660 {
1661 VFS_FIND(sys_acl_get_permset);
1662 return handle->fns->sys_acl_get_permset(handle, entry_d, permset_p);
1663 }
1664
1665 void * smb_vfs_call_sys_acl_get_qualifier(struct vfs_handle_struct *handle,
1666 SMB_ACL_ENTRY_T entry_d)
1667 {
1668 VFS_FIND(sys_acl_get_qualifier);
1669 return handle->fns->sys_acl_get_qualifier(handle, entry_d);
1670 }
1671
1672 SMB_ACL_T smb_vfs_call_sys_acl_get_file(struct vfs_handle_struct *handle,
1673 const char *path_p,
1674 SMB_ACL_TYPE_T type)
1675 {
1676 VFS_FIND(sys_acl_get_file);
1677 return handle->fns->sys_acl_get_file(handle, path_p, type);
1678 }
1679
1680 SMB_ACL_T smb_vfs_call_sys_acl_get_fd(struct vfs_handle_struct *handle,
1681 struct files_struct *fsp)
1682 {
1683 VFS_FIND(sys_acl_get_fd);
1684 return handle->fns->sys_acl_get_fd(handle, fsp);
1685 }
1686
1687 int smb_vfs_call_sys_acl_clear_perms(struct vfs_handle_struct *handle,
1688 SMB_ACL_PERMSET_T permset)
1689 {
1690 VFS_FIND(sys_acl_clear_perms);
1691 return handle->fns->sys_acl_clear_perms(handle, permset);
1692 }
1693
1694 int smb_vfs_call_sys_acl_add_perm(struct vfs_handle_struct *handle,
1695 SMB_ACL_PERMSET_T permset,
1696 SMB_ACL_PERM_T perm)
1697 {
1698 VFS_FIND(sys_acl_add_perm);
1699 return handle->fns->sys_acl_add_perm(handle, permset, perm);
1700 }
1701
1702 char * smb_vfs_call_sys_acl_to_text(struct vfs_handle_struct *handle,
1703 SMB_ACL_T theacl, ssize_t *plen)
1704 {
1705 VFS_FIND(sys_acl_to_text);
1706 return handle->fns->sys_acl_to_text(handle, theacl, plen);
1707 }
1708
1709 SMB_ACL_T smb_vfs_call_sys_acl_init(struct vfs_handle_struct *handle,
1710 int count)
1711 {
1712 VFS_FIND(sys_acl_init);
1713 return handle->fns->sys_acl_init(handle, count);
1714 }
1715
1716 int smb_vfs_call_sys_acl_create_entry(struct vfs_handle_struct *handle,
1717 SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry)
1718 {
1719 VFS_FIND(sys_acl_create_entry);
1720 return handle->fns->sys_acl_create_entry(handle, pacl, pentry);
1721 }
1722
1723 int smb_vfs_call_sys_acl_set_tag_type(struct vfs_handle_struct *handle,
1724 SMB_ACL_ENTRY_T entry,
1725 SMB_ACL_TAG_T tagtype)
1726 {
1727 VFS_FIND(sys_acl_set_tag_type);
1728 return handle->fns->sys_acl_set_tag_type(handle, entry, tagtype);
1729 }
1730
1731 int smb_vfs_call_sys_acl_set_qualifier(struct vfs_handle_struct *handle,
1732 SMB_ACL_ENTRY_T entry, void *qual)
1733 {
1734 VFS_FIND(sys_acl_set_qualifier);
1735 return handle->fns->sys_acl_set_qualifier(handle, entry, qual);
1736 }
1737
1738 int smb_vfs_call_sys_acl_set_permset(struct vfs_handle_struct *handle,
1739 SMB_ACL_ENTRY_T entry,
1740 SMB_ACL_PERMSET_T permset)
1741 {
1742 VFS_FIND(sys_acl_set_permset);
1743 return handle->fns->sys_acl_set_permset(handle, entry, permset);
1744 }
1745
1746 int smb_vfs_call_sys_acl_valid(struct vfs_handle_struct *handle,
1747 SMB_ACL_T theacl)
1748 {
1749 VFS_FIND(sys_acl_valid);
1750 return handle->fns->sys_acl_valid(handle, theacl);
1751 }
1752
1753 int smb_vfs_call_sys_acl_set_file(struct vfs_handle_struct *handle,
1754 const char *name, SMB_ACL_TYPE_T acltype,
1755 SMB_ACL_T theacl)
1756 {
1757 VFS_FIND(sys_acl_set_file);
1758 return handle->fns->sys_acl_set_file(handle, name, acltype, theacl);
1759 }
1760
1761 int smb_vfs_call_sys_acl_set_fd(struct vfs_handle_struct *handle,
1762 struct files_struct *fsp, SMB_ACL_T theacl)
1763 {
1764 VFS_FIND(sys_acl_set_fd);
1765 return handle->fns->sys_acl_set_fd(handle, fsp, theacl);
1766 }
1767
1768 int smb_vfs_call_sys_acl_delete_def_file(struct vfs_handle_struct *handle,
1769 const char *path)
1770 {
1771 VFS_FIND(sys_acl_delete_def_file);
1772 return handle->fns->sys_acl_delete_def_file(handle, path);
1773 }
1774
1775 int smb_vfs_call_sys_acl_get_perm(struct vfs_handle_struct *handle,
1776 SMB_ACL_PERMSET_T permset,
1777 SMB_ACL_PERM_T perm)
1778 {
1779 VFS_FIND(sys_acl_get_perm);
1780 return handle->fns->sys_acl_get_perm(handle, permset, perm);
1781 }
1782
1783 int smb_vfs_call_sys_acl_free_text(struct vfs_handle_struct *handle,
1784 char *text)
1785 {
1786 VFS_FIND(sys_acl_free_text);
1787 return handle->fns->sys_acl_free_text(handle, text);
1788 }
1789
1790 int smb_vfs_call_sys_acl_free_acl(struct vfs_handle_struct *handle,
1791 SMB_ACL_T posix_acl)
1792 {
1793 VFS_FIND(sys_acl_free_acl);
1794 return handle->fns->sys_acl_free_acl(handle, posix_acl);
1795 }
1796
1797 int smb_vfs_call_sys_acl_free_qualifier(struct vfs_handle_struct *handle,
1798 void *qualifier, SMB_ACL_TAG_T tagtype)
1799 {
1800 VFS_FIND(sys_acl_free_qualifier);
1801 return handle->fns->sys_acl_free_qualifier(handle, qualifier, tagtype);
1802 }
1803
1804 ssize_t smb_vfs_call_getxattr(struct vfs_handle_struct *handle,
1805 const char *path, const char *name, void *value,
1806 size_t size)
1807 {
1808 VFS_FIND(getxattr);
1809 return handle->fns->getxattr(handle, path, name, value, size);
1810 }
1811
1812 ssize_t smb_vfs_call_lgetxattr(struct vfs_handle_struct *handle,
1813 const char *path, const char *name, void *value,
1814 size_t size)
1815 {
1816 VFS_FIND(lgetxattr);
1817 return handle->fns->lgetxattr(handle, path, name, value, size);
1818 }
1819
1820 ssize_t smb_vfs_call_fgetxattr(struct vfs_handle_struct *handle,
1821 struct files_struct *fsp, const char *name,
1822 void *value, size_t size)
1823 {
1824 VFS_FIND(fgetxattr);
1825 return handle->fns->fgetxattr(handle, fsp, name, value, size);
1826 }
1827
1828 ssize_t smb_vfs_call_listxattr(struct vfs_handle_struct *handle,
1829 const char *path, char *list, size_t size)
1830 {
1831 VFS_FIND(listxattr);
1832 return handle->fns->listxattr(handle, path, list, size);
1833 }
1834
1835 ssize_t smb_vfs_call_llistxattr(struct vfs_handle_struct *handle,
1836 const char *path, char *list, size_t size)
1837 {
1838 VFS_FIND(llistxattr);
1839 return handle->fns->llistxattr(handle, path, list, size);
1840 }
1841
1842 ssize_t smb_vfs_call_flistxattr(struct vfs_handle_struct *handle,
1843 struct files_struct *fsp, char *list,
1844 size_t size)
1845 {
1846 VFS_FIND(flistxattr);
1847 return handle->fns->flistxattr(handle, fsp, list, size);
1848 }
1849
1850 int smb_vfs_call_removexattr(struct vfs_handle_struct *handle,
1851 const char *path, const char *name)
1852 {
1853 VFS_FIND(removexattr);
1854 return handle->fns->removexattr(handle, path, name);
1855 }
1856
1857 int smb_vfs_call_lremovexattr(struct vfs_handle_struct *handle,
1858 const char *path, const char *name)
1859 {
1860 VFS_FIND(lremovexattr);
1861 return handle->fns->lremovexattr(handle, path, name);
1862 }
1863
1864 int smb_vfs_call_fremovexattr(struct vfs_handle_struct *handle,
1865 struct files_struct *fsp, const char *name)
1866 {
1867 VFS_FIND(fremovexattr);
1868 return handle->fns->fremovexattr(handle, fsp, name);
1869 }
1870
1871 int smb_vfs_call_setxattr(struct vfs_handle_struct *handle, const char *path,
1872 const char *name, const void *value, size_t size,
1873 int flags)
1874 {
1875 VFS_FIND(setxattr);
1876 return handle->fns->setxattr(handle, path, name, value, size, flags);
1877 }
1878
1879 int smb_vfs_call_lsetxattr(struct vfs_handle_struct *handle, const char *path,
1880 const char *name, const void *value, size_t size,
1881 int flags)
1882 {
1883 VFS_FIND(lsetxattr);
1884 return handle->fns->lsetxattr(handle, path, name, value, size, flags);
1885 }
1886
1887 int smb_vfs_call_fsetxattr(struct vfs_handle_struct *handle,
1888 struct files_struct *fsp, const char *name,
1889 const void *value, size_t size, int flags)
1890 {
1891 VFS_FIND(fsetxattr);
1892 return handle->fns->fsetxattr(handle, fsp, name, value, size, flags);
1893 }
1894
1895 int smb_vfs_call_aio_read(struct vfs_handle_struct *handle,
1896 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
1897 {
1898 VFS_FIND(aio_read);
1899 return handle->fns->aio_read(handle, fsp, aiocb);
1900 }
1901
1902 int smb_vfs_call_aio_write(struct vfs_handle_struct *handle,
1903 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
1904 {
1905 VFS_FIND(aio_write);
1906 return handle->fns->aio_write(handle, fsp, aiocb);
1907 }
1908
1909 ssize_t smb_vfs_call_aio_return_fn(struct vfs_handle_struct *handle,
1910 struct files_struct *fsp,
1911 SMB_STRUCT_AIOCB *aiocb)
1912 {
1913 VFS_FIND(aio_return_fn);
1914 return handle->fns->aio_return_fn(handle, fsp, aiocb);
1915 }
1916
1917 int smb_vfs_call_aio_cancel(struct vfs_handle_struct *handle,
1918 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
1919 {
1920 VFS_FIND(aio_cancel);
1921 return handle->fns->aio_cancel(handle, fsp, aiocb);
1922 }
1923
1924 int smb_vfs_call_aio_error_fn(struct vfs_handle_struct *handle,
1925 struct files_struct *fsp,
1926 SMB_STRUCT_AIOCB *aiocb)
1927 {
1928 VFS_FIND(aio_error_fn);
1929 return handle->fns->aio_error_fn(handle, fsp, aiocb);
1930 }
1931
1932 int smb_vfs_call_aio_fsync(struct vfs_handle_struct *handle,
1933 struct files_struct *fsp, int op,
1934 SMB_STRUCT_AIOCB *aiocb)
1935 {
1936 VFS_FIND(aio_fsync);
1937 return handle->fns->aio_fsync(handle, fsp, op, aiocb);
1938 }
1939
1940 int smb_vfs_call_aio_suspend(struct vfs_handle_struct *handle,
1941 struct files_struct *fsp,
1942 const SMB_STRUCT_AIOCB * const aiocb[], int n,
1943 const struct timespec *timeout)
1944 {
1945 VFS_FIND(aio_suspend);
1946 return handle->fns->aio_suspend(handle, fsp, aiocb, n, timeout);
1947 }
1948
1949 bool smb_vfs_call_aio_force(struct vfs_handle_struct *handle,
1950 struct files_struct *fsp)
1951 {
1952 VFS_FIND(aio_force);
1953 return handle->fns->aio_force(handle, fsp);
1954 }
1955
1956 bool smb_vfs_call_is_offline(struct vfs_handle_struct *handle,
1957 const char *path, SMB_STRUCT_STAT *sbuf)
1958 {
1959 VFS_FIND(is_offline);
1960 return handle->fns->is_offline(handle, path, sbuf);
1961 }
1962
1963 int smb_vfs_call_set_offline(struct vfs_handle_struct *handle,
1964 const char *path)
1965 {
1966 VFS_FIND(set_offline);
1967 return handle->fns->set_offline(handle, path);
1968 }
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