source: trunk/server/source3/smbd/vfs.c@ 533

Last change on this file since 533 was 454, checked in by Silvan Scherrer, 15 years ago

Samba Server 3.5: merged changes from 3.3
File size: 50.2 KB
Line 
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
32static_decl_vfs;
33
34struct 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
44static 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
58NTSTATUS 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
95static 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
105bool vfs_init_custom(connection_struct *conn, const char *vfs_object)
106{
107 char *module_path = NULL;
108 char *module_name = NULL;
109 char *module_param = NULL, *p;
110 vfs_handle_struct *handle;
111 const struct vfs_init_function_entry *entry;
112
113 if (!conn||!vfs_object||!vfs_object[0]) {
114 DEBUG(0,("vfs_init_custon() called with NULL pointer or emtpy vfs_object!\n"));
115 return False;
116 }
117
118 if(!backends) {
119 static_init_vfs;
120 }
121
122 DEBUG(3, ("Initialising custom vfs hooks from [%s]\n", vfs_object));
123
124 module_path = smb_xstrdup(vfs_object);
125
126 p = strchr_m(module_path, ':');
127
128 if (p) {
129 *p = 0;
130 module_param = p+1;
131 trim_char(module_param, ' ', ' ');
132 }
133
134 trim_char(module_path, ' ', ' ');
135
136 module_name = smb_xstrdup(module_path);
137
138 if ((module_name[0] == '/') &&
139 (strcmp(module_path, DEFAULT_VFS_MODULE_NAME) != 0)) {
140
141 /*
142 * Extract the module name from the path. Just use the base
143 * name of the last path component.
144 */
145
146 SAFE_FREE(module_name);
147 module_name = smb_xstrdup(strrchr_m(module_path, '/')+1);
148
149 p = strchr_m(module_name, '.');
150
151 if (p != NULL) {
152 *p = '\0';
153 }
154 }
155
156 /* First, try to load the module with the new module system */
157 entry = vfs_find_backend_entry(module_name);
158 if (!entry) {
159 NTSTATUS status;
160
161 DEBUG(5, ("vfs module [%s] not loaded - trying to load...\n",
162 vfs_object));
163
164 status = smb_probe_module("vfs", module_path);
165 if (!NT_STATUS_IS_OK(status)) {
166 DEBUG(0, ("error probing vfs module '%s': %s\n",
167 module_path, nt_errstr(status)));
168 goto fail;
169 }
170
171 entry = vfs_find_backend_entry(module_name);
172 if (!entry) {
173 DEBUG(0,("Can't find a vfs module [%s]\n",vfs_object));
174 goto fail;
175 }
176 }
177
178 DEBUGADD(5,("Successfully loaded vfs module [%s] with the new modules system\n", vfs_object));
179
180 handle = TALLOC_ZERO_P(conn, vfs_handle_struct);
181 if (!handle) {
182 DEBUG(0,("TALLOC_ZERO() failed!\n"));
183 goto fail;
184 }
185 handle->conn = conn;
186 handle->fns = entry->fns;
187 if (module_param) {
188 handle->param = talloc_strdup(conn, module_param);
189 }
190 DLIST_ADD(conn->vfs_handles, handle);
191
192 SAFE_FREE(module_path);
193 SAFE_FREE(module_name);
194 return True;
195
196 fail:
197 SAFE_FREE(module_path);
198 SAFE_FREE(module_name);
199 return False;
200}
201
202/*****************************************************************
203 Allow VFS modules to extend files_struct with VFS-specific state.
204 This will be ok for small numbers of extensions, but might need to
205 be refactored if it becomes more widely used.
206******************************************************************/
207
208#define EXT_DATA_AREA(e) ((uint8 *)(e) + sizeof(struct vfs_fsp_data))
209
210void *vfs_add_fsp_extension_notype(vfs_handle_struct *handle,
211 files_struct *fsp, size_t ext_size,
212 void (*destroy_fn)(void *p_data))
213{
214 struct vfs_fsp_data *ext;
215 void * ext_data;
216
217 /* Prevent VFS modules adding multiple extensions. */
218 if ((ext_data = vfs_fetch_fsp_extension(handle, fsp))) {
219 return ext_data;
220 }
221
222 ext = (struct vfs_fsp_data *)TALLOC_ZERO(
223 handle->conn, sizeof(struct vfs_fsp_data) + ext_size);
224 if (ext == NULL) {
225 return NULL;
226 }
227
228 ext->owner = handle;
229 ext->next = fsp->vfs_extension;
230 ext->destroy = destroy_fn;
231 fsp->vfs_extension = ext;
232 return EXT_DATA_AREA(ext);
233}
234
235void vfs_remove_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
236{
237 struct vfs_fsp_data *curr;
238 struct vfs_fsp_data *prev;
239
240 for (curr = fsp->vfs_extension, prev = NULL;
241 curr;
242 prev = curr, curr = curr->next) {
243 if (curr->owner == handle) {
244 if (prev) {
245 prev->next = curr->next;
246 } else {
247 fsp->vfs_extension = curr->next;
248 }
249 if (curr->destroy) {
250 curr->destroy(EXT_DATA_AREA(curr));
251 }
252 TALLOC_FREE(curr);
253 return;
254 }
255 }
256}
257
258void *vfs_memctx_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
259{
260 struct vfs_fsp_data *head;
261
262 for (head = fsp->vfs_extension; head; head = head->next) {
263 if (head->owner == handle) {
264 return head;
265 }
266 }
267
268 return NULL;
269}
270
271void *vfs_fetch_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
272{
273 struct vfs_fsp_data *head;
274
275 head = (struct vfs_fsp_data *)vfs_memctx_fsp_extension(handle, fsp);
276 if (head != NULL) {
277 return EXT_DATA_AREA(head);
278 }
279
280 return NULL;
281}
282
283#undef EXT_DATA_AREA
284
285/*****************************************************************
286 Generic VFS init.
287******************************************************************/
288
289bool smbd_vfs_init(connection_struct *conn)
290{
291 const char **vfs_objects;
292 unsigned int i = 0;
293 int j = 0;
294
295 /* Normal share - initialise with disk access functions */
296 vfs_init_default(conn);
297 vfs_objects = lp_vfs_objects(SNUM(conn));
298
299 /* Override VFS functions if 'vfs object' was not specified*/
300 if (!vfs_objects || !vfs_objects[0])
301 return True;
302
303 for (i=0; vfs_objects[i] ;) {
304 i++;
305 }
306
307 for (j=i-1; j >= 0; j--) {
308 if (!vfs_init_custom(conn, vfs_objects[j])) {
309 DEBUG(0, ("smbd_vfs_init: vfs_init_custom failed for %s\n", vfs_objects[j]));
310 return False;
311 }
312 }
313 return True;
314}
315
316/*******************************************************************
317 Check if a file exists in the vfs.
318********************************************************************/
319
320NTSTATUS vfs_file_exist(connection_struct *conn, struct smb_filename *smb_fname)
321{
322 /* Only return OK if stat was successful and S_ISREG */
323 if ((SMB_VFS_STAT(conn, smb_fname) != -1) &&
324 S_ISREG(smb_fname->st.st_ex_mode)) {
325 return NT_STATUS_OK;
326 }
327
328 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
329}
330
331/****************************************************************************
332 Read data from fsp on the vfs. (note: EINTR re-read differs from vfs_write_data)
333****************************************************************************/
334
335ssize_t vfs_read_data(files_struct *fsp, char *buf, size_t byte_count)
336{
337 size_t total=0;
338
339 while (total < byte_count)
340 {
341 ssize_t ret = SMB_VFS_READ(fsp, buf + total,
342 byte_count - total);
343
344 if (ret == 0) return total;
345 if (ret == -1) {
346 if (errno == EINTR)
347 continue;
348 else
349 return -1;
350 }
351 total += ret;
352 }
353 return (ssize_t)total;
354}
355
356ssize_t vfs_pread_data(files_struct *fsp, char *buf,
357 size_t byte_count, SMB_OFF_T offset)
358{
359 size_t total=0;
360
361 while (total < byte_count)
362 {
363 ssize_t ret = SMB_VFS_PREAD(fsp, buf + total,
364 byte_count - total, offset + total);
365
366 if (ret == 0) return total;
367 if (ret == -1) {
368 if (errno == EINTR)
369 continue;
370 else
371 return -1;
372 }
373 total += ret;
374 }
375 return (ssize_t)total;
376}
377
378/****************************************************************************
379 Write data to a fd on the vfs.
380****************************************************************************/
381
382ssize_t vfs_write_data(struct smb_request *req,
383 files_struct *fsp,
384 const char *buffer,
385 size_t N)
386{
387 size_t total=0;
388 ssize_t ret;
389
390 if (req && req->unread_bytes) {
391 SMB_ASSERT(req->unread_bytes == N);
392 /* VFS_RECVFILE must drain the socket
393 * before returning. */
394 req->unread_bytes = 0;
395 return SMB_VFS_RECVFILE(smbd_server_fd(),
396 fsp,
397 (SMB_OFF_T)-1,
398 N);
399 }
400
401 while (total < N) {
402 ret = SMB_VFS_WRITE(fsp, buffer + total, N - total);
403
404 if (ret == -1)
405 return -1;
406 if (ret == 0)
407 return total;
408
409 total += ret;
410 }
411 return (ssize_t)total;
412}
413
414ssize_t vfs_pwrite_data(struct smb_request *req,
415 files_struct *fsp,
416 const char *buffer,
417 size_t N,
418 SMB_OFF_T offset)
419{
420 size_t total=0;
421 ssize_t ret;
422
423 if (req && req->unread_bytes) {
424 SMB_ASSERT(req->unread_bytes == N);
425 /* VFS_RECVFILE must drain the socket
426 * before returning. */
427 req->unread_bytes = 0;
428 return SMB_VFS_RECVFILE(smbd_server_fd(),
429 fsp,
430 offset,
431 N);
432 }
433
434 while (total < N) {
435 ret = SMB_VFS_PWRITE(fsp, buffer + total, N - total,
436 offset + total);
437
438 if (ret == -1)
439 return -1;
440 if (ret == 0)
441 return total;
442
443 total += ret;
444 }
445 return (ssize_t)total;
446}
447/****************************************************************************
448 An allocate file space call using the vfs interface.
449 Allocates space for a file from a filedescriptor.
450 Returns 0 on success, -1 on failure.
451****************************************************************************/
452
453int vfs_allocate_file_space(files_struct *fsp, uint64_t len)
454{
455 int ret;
456 SMB_STRUCT_STAT st;
457 connection_struct *conn = fsp->conn;
458 uint64_t space_avail;
459 uint64_t bsize,dfree,dsize;
460
461 /*
462 * Actually try and commit the space on disk....
463 */
464
465 DEBUG(10,("vfs_allocate_file_space: file %s, len %.0f\n",
466 fsp_str_dbg(fsp), (double)len));
467
468 if (((SMB_OFF_T)len) < 0) {
469 DEBUG(0,("vfs_allocate_file_space: %s negative len "
470 "requested.\n", fsp_str_dbg(fsp)));
471 errno = EINVAL;
472 return -1;
473 }
474
475 ret = SMB_VFS_FSTAT(fsp, &st);
476 if (ret == -1)
477 return ret;
478
479 if (len == (uint64_t)st.st_ex_size)
480 return 0;
481
482 if (len < (uint64_t)st.st_ex_size) {
483 /* Shrink - use ftruncate. */
484
485 DEBUG(10,("vfs_allocate_file_space: file %s, shrink. Current "
486 "size %.0f\n", fsp_str_dbg(fsp),
487 (double)st.st_ex_size));
488
489 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_ALLOC_SHRINK);
490
491 flush_write_cache(fsp, SIZECHANGE_FLUSH);
492 if ((ret = SMB_VFS_FTRUNCATE(fsp, (SMB_OFF_T)len)) != -1) {
493 set_filelen_write_cache(fsp, len);
494 }
495
496 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_ALLOC_SHRINK);
497
498 return ret;
499 }
500
501 /* Grow - we need to test if we have enough space. */
502
503 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_ALLOC_GROW);
504 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_ALLOC_GROW);
505
506 if (!lp_strict_allocate(SNUM(fsp->conn)))
507 return 0;
508
509 len -= st.st_ex_size;
510 len /= 1024; /* Len is now number of 1k blocks needed. */
511 space_avail = get_dfree_info(conn, fsp->fsp_name->base_name, false,
512 &bsize, &dfree, &dsize);
513 if (space_avail == (uint64_t)-1) {
514 return -1;
515 }
516
517 DEBUG(10,("vfs_allocate_file_space: file %s, grow. Current size %.0f, "
518 "needed blocks = %.0f, space avail = %.0f\n",
519 fsp_str_dbg(fsp), (double)st.st_ex_size, (double)len,
520 (double)space_avail));
521
522 if (len > space_avail) {
523 errno = ENOSPC;
524 return -1;
525 }
526
527 return 0;
528}
529
530/****************************************************************************
531 A vfs set_filelen call.
532 set the length of a file from a filedescriptor.
533 Returns 0 on success, -1 on failure.
534****************************************************************************/
535
536int vfs_set_filelen(files_struct *fsp, SMB_OFF_T len)
537{
538 int ret;
539
540 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_SET_FILE_LEN);
541
542 DEBUG(10,("vfs_set_filelen: ftruncate %s to len %.0f\n",
543 fsp_str_dbg(fsp), (double)len));
544 flush_write_cache(fsp, SIZECHANGE_FLUSH);
545 if ((ret = SMB_VFS_FTRUNCATE(fsp, len)) != -1) {
546 set_filelen_write_cache(fsp, len);
547 notify_fname(fsp->conn, NOTIFY_ACTION_MODIFIED,
548 FILE_NOTIFY_CHANGE_SIZE
549 | FILE_NOTIFY_CHANGE_ATTRIBUTES,
550 fsp->fsp_name->base_name);
551 }
552
553 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_SET_FILE_LEN);
554
555 return ret;
556}
557
558/****************************************************************************
559 A vfs fill sparse call.
560 Writes zeros from the end of file to len, if len is greater than EOF.
561 Used only by strict_sync.
562 Returns 0 on success, -1 on failure.
563****************************************************************************/
564
565#define SPARSE_BUF_WRITE_SIZE (32*1024)
566
567int vfs_fill_sparse(files_struct *fsp, SMB_OFF_T len)
568{
569 int ret;
570 SMB_STRUCT_STAT st;
571 SMB_OFF_T offset;
572 size_t total;
573 size_t num_to_write;
574 ssize_t pwrite_ret;
575
576 ret = SMB_VFS_FSTAT(fsp, &st);
577 if (ret == -1) {
578 return ret;
579 }
580
581 if (len <= st.st_ex_size) {
582 return 0;
583 }
584
585 DEBUG(10,("vfs_fill_sparse: write zeros in file %s from len %.0f to "
586 "len %.0f (%.0f bytes)\n", fsp_str_dbg(fsp),
587 (double)st.st_ex_size, (double)len,
588 (double)(len - st.st_ex_size)));
589
590 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_FILL_SPARSE);
591
592 flush_write_cache(fsp, SIZECHANGE_FLUSH);
593
594 if (!sparse_buf) {
595 sparse_buf = SMB_CALLOC_ARRAY(char, SPARSE_BUF_WRITE_SIZE);
596 if (!sparse_buf) {
597 errno = ENOMEM;
598 ret = -1;
599 goto out;
600 }
601 }
602
603 offset = st.st_ex_size;
604 num_to_write = len - st.st_ex_size;
605 total = 0;
606
607 while (total < num_to_write) {
608 size_t curr_write_size = MIN(SPARSE_BUF_WRITE_SIZE, (num_to_write - total));
609
610 pwrite_ret = SMB_VFS_PWRITE(fsp, sparse_buf, curr_write_size, offset + total);
611 if (pwrite_ret == -1) {
612 DEBUG(10,("vfs_fill_sparse: SMB_VFS_PWRITE for file "
613 "%s failed with error %s\n",
614 fsp_str_dbg(fsp), strerror(errno)));
615 ret = -1;
616 goto out;
617 }
618 if (pwrite_ret == 0) {
619 ret = 0;
620 goto out;
621 }
622
623 total += pwrite_ret;
624 }
625
626 set_filelen_write_cache(fsp, len);
627
628 ret = 0;
629 out:
630 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_FILL_SPARSE);
631 return ret;
632}
633
634/****************************************************************************
635 Transfer some data (n bytes) between two file_struct's.
636****************************************************************************/
637
638static ssize_t vfs_read_fn(void *file, void *buf, size_t len)
639{
640 struct files_struct *fsp = (struct files_struct *)file;
641
642 return SMB_VFS_READ(fsp, buf, len);
643}
644
645static ssize_t vfs_write_fn(void *file, const void *buf, size_t len)
646{
647 struct files_struct *fsp = (struct files_struct *)file;
648
649 return SMB_VFS_WRITE(fsp, buf, len);
650}
651
652SMB_OFF_T vfs_transfer_file(files_struct *in, files_struct *out, SMB_OFF_T n)
653{
654 return transfer_file_internal((void *)in, (void *)out, n,
655 vfs_read_fn, vfs_write_fn);
656}
657
658/*******************************************************************
659 A vfs_readdir wrapper which just returns the file name.
660********************************************************************/
661
662const char *vfs_readdirname(connection_struct *conn, void *p,
663 SMB_STRUCT_STAT *sbuf, char **talloced)
664{
665 SMB_STRUCT_DIRENT *ptr= NULL;
666 const char *dname;
667 char *translated;
668 NTSTATUS status;
669
670 if (!p)
671 return(NULL);
672
673 ptr = SMB_VFS_READDIR(conn, (DIR *)p, sbuf);
674 if (!ptr)
675 return(NULL);
676
677 dname = ptr->d_name;
678
679
680#ifdef NEXT2
681 if (telldir(p) < 0)
682 return(NULL);
683#endif
684
685#ifdef HAVE_BROKEN_READDIR_NAME
686 /* using /usr/ucb/cc is BAD */
687 dname = dname - 2;
688#endif
689
690 status = SMB_VFS_TRANSLATE_NAME(conn, dname, vfs_translate_to_windows,
691 talloc_tos(), &translated);
692 if (NT_STATUS_EQUAL(status, NT_STATUS_NONE_MAPPED)) {
693 *talloced = NULL;
694 return dname;
695 }
696 *talloced = translated;
697 if (!NT_STATUS_IS_OK(status)) {
698 return NULL;
699 }
700 return translated;
701}
702
703/*******************************************************************
704 A wrapper for vfs_chdir().
705********************************************************************/
706
707int vfs_ChDir(connection_struct *conn, const char *path)
708{
709 int res;
710
711 if (!LastDir) {
712 LastDir = SMB_STRDUP("");
713 }
714
715 if (strcsequal(path,"."))
716 return(0);
717
718#ifdef __OS2__
719 if ((*path == '/' || *path == '\\' || (*path && path[1] == ':')) && strcsequal(LastDir,path))
720#else
721 if (*path == '/' && strcsequal(LastDir,path))
722#endif
723 return(0);
724
725 DEBUG(4,("vfs_ChDir to %s\n",path));
726
727 res = SMB_VFS_CHDIR(conn,path);
728 if (!res) {
729 SAFE_FREE(LastDir);
730 LastDir = SMB_STRDUP(path);
731 }
732 return(res);
733}
734
735/*******************************************************************
736 Return the absolute current directory path - given a UNIX pathname.
737 Note that this path is returned in DOS format, not UNIX
738 format. Note this can be called with conn == NULL.
739********************************************************************/
740
741char *vfs_GetWd(TALLOC_CTX *ctx, connection_struct *conn)
742{
743 char s[PATH_MAX+1];
744 char *result = NULL;
745 DATA_BLOB cache_value;
746 struct file_id key;
747 struct smb_filename *smb_fname_dot = NULL;
748 struct smb_filename *smb_fname_full = NULL;
749 NTSTATUS status;
750
751 *s = 0;
752
753 if (!lp_getwd_cache()) {
754 goto nocache;
755 }
756
757 status = create_synthetic_smb_fname(ctx, ".", NULL, NULL,
758 &smb_fname_dot);
759 if (!NT_STATUS_IS_OK(status)) {
760 errno = map_errno_from_nt_status(status);
761 goto out;
762 }
763
764 if (SMB_VFS_STAT(conn, smb_fname_dot) == -1) {
765 /*
766 * Known to fail for root: the directory may be NFS-mounted
767 * and exported with root_squash (so has no root access).
768 */
769 DEBUG(1,("vfs_GetWd: couldn't stat \".\" error %s "
770 "(NFS problem ?)\n", strerror(errno) ));
771 goto nocache;
772 }
773
774 key = vfs_file_id_from_sbuf(conn, &smb_fname_dot->st);
775
776 if (!memcache_lookup(smbd_memcache(), GETWD_CACHE,
777 data_blob_const(&key, sizeof(key)),
778 &cache_value)) {
779 goto nocache;
780 }
781
782 SMB_ASSERT((cache_value.length > 0)
783 && (cache_value.data[cache_value.length-1] == '\0'));
784
785 status = create_synthetic_smb_fname(ctx, (char *)cache_value.data,
786 NULL, NULL, &smb_fname_full);
787 if (!NT_STATUS_IS_OK(status)) {
788 errno = map_errno_from_nt_status(status);
789 goto out;
790 }
791
792 if ((SMB_VFS_STAT(conn, smb_fname_full) == 0) &&
793 (smb_fname_dot->st.st_ex_dev == smb_fname_full->st.st_ex_dev) &&
794 (smb_fname_dot->st.st_ex_ino == smb_fname_full->st.st_ex_ino) &&
795 (S_ISDIR(smb_fname_dot->st.st_ex_mode))) {
796 /*
797 * Ok, we're done
798 */
799 result = talloc_strdup(ctx, smb_fname_full->base_name);
800 if (result == NULL) {
801 errno = ENOMEM;
802 }
803 goto out;
804 }
805
806 nocache:
807
808 /*
809 * We don't have the information to hand so rely on traditional
810 * methods. The very slow getcwd, which spawns a process on some
811 * systems, or the not quite so bad getwd.
812 */
813
814 if (!SMB_VFS_GETWD(conn,s)) {
815 DEBUG(0, ("vfs_GetWd: SMB_VFS_GETWD call failed: %s\n",
816 strerror(errno)));
817 goto out;
818 }
819
820 if (lp_getwd_cache() && VALID_STAT(smb_fname_dot->st)) {
821 key = vfs_file_id_from_sbuf(conn, &smb_fname_dot->st);
822
823 memcache_add(smbd_memcache(), GETWD_CACHE,
824 data_blob_const(&key, sizeof(key)),
825 data_blob_const(s, strlen(s)+1));
826 }
827
828 result = talloc_strdup(ctx, s);
829 if (result == NULL) {
830 errno = ENOMEM;
831 }
832
833 out:
834 TALLOC_FREE(smb_fname_dot);
835 TALLOC_FREE(smb_fname_full);
836 return result;
837}
838
839/*******************************************************************
840 Reduce a file name, removing .. elements and checking that
841 it is below dir in the heirachy. This uses realpath.
842********************************************************************/
843
844NTSTATUS check_reduced_name(connection_struct *conn, const char *fname)
845{
846#ifdef REALPATH_TAKES_NULL
847 bool free_resolved_name = True;
848#else
849 char resolved_name_buf[PATH_MAX+1];
850 bool free_resolved_name = False;
851#endif
852 char *resolved_name = NULL;
853 char *p = NULL;
854
855 DEBUG(3,("check_reduced_name [%s] [%s]\n", fname, conn->connectpath));
856
857#ifdef REALPATH_TAKES_NULL
858 resolved_name = SMB_VFS_REALPATH(conn,fname,NULL);
859#else
860 resolved_name = SMB_VFS_REALPATH(conn,fname,resolved_name_buf);
861#endif
862
863 if (!resolved_name) {
864 switch (errno) {
865 case ENOTDIR:
866 DEBUG(3,("check_reduced_name: Component not a "
867 "directory in getting realpath for "
868 "%s\n", fname));
869 return NT_STATUS_OBJECT_PATH_NOT_FOUND;
870 case ENOENT:
871 {
872 TALLOC_CTX *ctx = talloc_tos();
873 char *tmp_fname = NULL;
874 char *last_component = NULL;
875 /* Last component didn't exist. Remove it and try and canonicalise the directory. */
876
877 tmp_fname = talloc_strdup(ctx, fname);
878 if (!tmp_fname) {
879 return NT_STATUS_NO_MEMORY;
880 }
881 p = strrchr_m(tmp_fname, '/');
882 if (p) {
883 *p++ = '\0';
884 last_component = p;
885 } else {
886 last_component = tmp_fname;
887 tmp_fname = talloc_strdup(ctx,
888 ".");
889 if (!tmp_fname) {
890 return NT_STATUS_NO_MEMORY;
891 }
892 }
893
894#ifdef REALPATH_TAKES_NULL
895 resolved_name = SMB_VFS_REALPATH(conn,tmp_fname,NULL);
896#else
897 resolved_name = SMB_VFS_REALPATH(conn,tmp_fname,resolved_name_buf);
898#endif
899 if (!resolved_name) {
900 NTSTATUS status = map_nt_error_from_unix(errno);
901
902 if (errno == ENOENT || errno == ENOTDIR) {
903 status = NT_STATUS_OBJECT_PATH_NOT_FOUND;
904 }
905
906 DEBUG(3,("check_reduce_named: "
907 "couldn't get realpath for "
908 "%s (%s)\n",
909 fname,
910 nt_errstr(status)));
911 return status;
912 }
913 tmp_fname = talloc_asprintf(ctx,
914 "%s/%s",
915 resolved_name,
916 last_component);
917 if (!tmp_fname) {
918 return NT_STATUS_NO_MEMORY;
919 }
920#ifdef REALPATH_TAKES_NULL
921 SAFE_FREE(resolved_name);
922 resolved_name = SMB_STRDUP(tmp_fname);
923 if (!resolved_name) {
924 DEBUG(0, ("check_reduced_name: malloc "
925 "fail for %s\n", tmp_fname));
926 return NT_STATUS_NO_MEMORY;
927 }
928#else
929 safe_strcpy(resolved_name_buf, tmp_fname, PATH_MAX);
930 resolved_name = resolved_name_buf;
931#endif
932 break;
933 }
934 default:
935 DEBUG(1,("check_reduced_name: couldn't get "
936 "realpath for %s\n", fname));
937 return map_nt_error_from_unix(errno);
938 }
939 }
940
941 DEBUG(10,("check_reduced_name realpath [%s] -> [%s]\n", fname,
942 resolved_name));
943
944#ifdef __OS2__
945 if (*resolved_name != '/' && *resolved_name != '\\' && (strlen(resolved_name) <= 1 || resolved_name[1] != ':')) {
946#else
947 if (*resolved_name != '/') {
948#endif
949 DEBUG(0,("check_reduced_name: realpath doesn't return "
950 "absolute paths !\n"));
951 if (free_resolved_name) {
952 SAFE_FREE(resolved_name);
953 }
954 return NT_STATUS_OBJECT_NAME_INVALID;
955 }
956
957 /* Check for widelinks allowed. */
958 if (!lp_widelinks(SNUM(conn))) {
959 const char *conn_rootdir;
960
961 conn_rootdir = SMB_VFS_CONNECTPATH(conn, fname);
962 if (conn_rootdir == NULL) {
963 DEBUG(2, ("check_reduced_name: Could not get "
964 "conn_rootdir\n"));
965 if (free_resolved_name) {
966 SAFE_FREE(resolved_name);
967 }
968 return NT_STATUS_ACCESS_DENIED;
969 }
970
971 if (strncmp(conn_rootdir, resolved_name,
972 strlen(conn_rootdir)) != 0) {
973 DEBUG(2, ("check_reduced_name: Bad access "
974 "attempt: %s is a symlink outside the "
975 "share path\n", fname));
976 if (free_resolved_name) {
977 SAFE_FREE(resolved_name);
978 }
979 return NT_STATUS_ACCESS_DENIED;
980 }
981 }
982
983 /* Check if we are allowing users to follow symlinks */
984 /* Patch from David Clerc <David.Clerc@cui.unige.ch>
985 University of Geneva */
986
987#ifdef S_ISLNK
988 if (!lp_symlinks(SNUM(conn))) {
989 struct smb_filename *smb_fname = NULL;
990 NTSTATUS status;
991
992 status = create_synthetic_smb_fname(talloc_tos(), fname, NULL,
993 NULL, &smb_fname);
994 if (!NT_STATUS_IS_OK(status)) {
995 if (free_resolved_name) {
996 SAFE_FREE(resolved_name);
997 }
998 return status;
999 }
1000
1001 if ( (SMB_VFS_LSTAT(conn, smb_fname) != -1) &&
1002 (S_ISLNK(smb_fname->st.st_ex_mode)) ) {
1003 if (free_resolved_name) {
1004 SAFE_FREE(resolved_name);
1005 }
1006 DEBUG(3,("check_reduced_name: denied: file path name "
1007 "%s is a symlink\n",resolved_name));
1008 TALLOC_FREE(smb_fname);
1009 return NT_STATUS_ACCESS_DENIED;
1010 }
1011 TALLOC_FREE(smb_fname);
1012 }
1013#endif
1014
1015 DEBUG(3,("check_reduced_name: %s reduced to %s\n", fname,
1016 resolved_name));
1017 if (free_resolved_name) {
1018 SAFE_FREE(resolved_name);
1019 }
1020 return NT_STATUS_OK;
1021}
1022
1023/**
1024 * XXX: This is temporary and there should be no callers of this once
1025 * smb_filename is plumbed through all path based operations.
1026 */
1027int vfs_stat_smb_fname(struct connection_struct *conn, const char *fname,
1028 SMB_STRUCT_STAT *psbuf)
1029{
1030 struct smb_filename *smb_fname = NULL;
1031 NTSTATUS status;
1032 int ret;
1033
1034 status = create_synthetic_smb_fname_split(talloc_tos(), fname, NULL,
1035 &smb_fname);
1036 if (!NT_STATUS_IS_OK(status)) {
1037 errno = map_errno_from_nt_status(status);
1038 return -1;
1039 }
1040
1041 if (lp_posix_pathnames()) {
1042 ret = SMB_VFS_LSTAT(conn, smb_fname);
1043 } else {
1044 ret = SMB_VFS_STAT(conn, smb_fname);
1045 }
1046
1047 if (ret != -1) {
1048 *psbuf = smb_fname->st;
1049 }
1050
1051 TALLOC_FREE(smb_fname);
1052 return ret;
1053}
1054
1055/**
1056 * XXX: This is temporary and there should be no callers of this once
1057 * smb_filename is plumbed through all path based operations.
1058 */
1059int vfs_lstat_smb_fname(struct connection_struct *conn, const char *fname,
1060 SMB_STRUCT_STAT *psbuf)
1061{
1062 struct smb_filename *smb_fname = NULL;
1063 NTSTATUS status;
1064 int ret;
1065
1066 status = create_synthetic_smb_fname_split(talloc_tos(), fname, NULL,
1067 &smb_fname);
1068 if (!NT_STATUS_IS_OK(status)) {
1069 errno = map_errno_from_nt_status(status);
1070 return -1;
1071 }
1072
1073 ret = SMB_VFS_LSTAT(conn, smb_fname);
1074 if (ret != -1) {
1075 *psbuf = smb_fname->st;
1076 }
1077
1078 TALLOC_FREE(smb_fname);
1079 return ret;
1080}
1081
1082/**
1083 * Ensure LSTAT is called for POSIX paths.
1084 */
1085
1086NTSTATUS vfs_stat_fsp(files_struct *fsp)
1087{
1088 int ret;
1089
1090 if(fsp->is_directory || fsp->fh->fd == -1) {
1091 if (fsp->posix_open) {
1092 ret = SMB_VFS_LSTAT(fsp->conn, fsp->fsp_name);
1093 } else {
1094 ret = SMB_VFS_STAT(fsp->conn, fsp->fsp_name);
1095 }
1096 if (ret == -1) {
1097 return map_nt_error_from_unix(errno);
1098 }
1099 } else {
1100 if(SMB_VFS_FSTAT(fsp, &fsp->fsp_name->st) != 0) {
1101 return map_nt_error_from_unix(errno);
1102 }
1103 }
1104 return NT_STATUS_OK;
1105}
1106
1107/*
1108 generate a file_id from a stat structure
1109 */
1110struct file_id vfs_file_id_from_sbuf(connection_struct *conn, const SMB_STRUCT_STAT *sbuf)
1111{
1112 return SMB_VFS_FILE_ID_CREATE(conn, sbuf);
1113}
1114
1115int smb_vfs_call_connect(struct vfs_handle_struct *handle,
1116 const char *service, const char *user)
1117{
1118 VFS_FIND(connect_fn);
1119 return handle->fns->connect_fn(handle, service, user);
1120}
1121
1122void smb_vfs_call_disconnect(struct vfs_handle_struct *handle)
1123{
1124 VFS_FIND(disconnect);
1125 handle->fns->disconnect(handle);
1126}
1127
1128uint64_t smb_vfs_call_disk_free(struct vfs_handle_struct *handle,
1129 const char *path, bool small_query,
1130 uint64_t *bsize, uint64_t *dfree,
1131 uint64_t *dsize)
1132{
1133 VFS_FIND(disk_free);
1134 return handle->fns->disk_free(handle, path, small_query, bsize, dfree,
1135 dsize);
1136}
1137
1138int smb_vfs_call_get_quota(struct vfs_handle_struct *handle,
1139 enum SMB_QUOTA_TYPE qtype, unid_t id,
1140 SMB_DISK_QUOTA *qt)
1141{
1142 VFS_FIND(get_quota);
1143 return handle->fns->get_quota(handle, qtype, id, qt);
1144}
1145
1146int smb_vfs_call_set_quota(struct vfs_handle_struct *handle,
1147 enum SMB_QUOTA_TYPE qtype, unid_t id,
1148 SMB_DISK_QUOTA *qt)
1149{
1150 VFS_FIND(set_quota);
1151 return handle->fns->set_quota(handle, qtype, id, qt);
1152}
1153
1154int smb_vfs_call_get_shadow_copy_data(struct vfs_handle_struct *handle,
1155 struct files_struct *fsp,
1156 SHADOW_COPY_DATA *shadow_copy_data,
1157 bool labels)
1158{
1159 VFS_FIND(get_shadow_copy_data);
1160 return handle->fns->get_shadow_copy_data(handle, fsp, shadow_copy_data,
1161 labels);
1162}
1163int smb_vfs_call_statvfs(struct vfs_handle_struct *handle, const char *path,
1164 struct vfs_statvfs_struct *statbuf)
1165{
1166 VFS_FIND(statvfs);
1167 return handle->fns->statvfs(handle, path, statbuf);
1168}
1169
1170uint32_t smb_vfs_call_fs_capabilities(struct vfs_handle_struct *handle,
1171 enum timestamp_set_resolution *p_ts_res)
1172{
1173 VFS_FIND(fs_capabilities);
1174 return handle->fns->fs_capabilities(handle, p_ts_res);
1175}
1176
1177SMB_STRUCT_DIR *smb_vfs_call_opendir(struct vfs_handle_struct *handle,
1178 const char *fname, const char *mask,
1179 uint32 attributes)
1180{
1181 VFS_FIND(opendir);
1182 return handle->fns->opendir(handle, fname, mask, attributes);
1183}
1184
1185SMB_STRUCT_DIRENT *smb_vfs_call_readdir(struct vfs_handle_struct *handle,
1186 SMB_STRUCT_DIR *dirp,
1187 SMB_STRUCT_STAT *sbuf)
1188{
1189 VFS_FIND(readdir);
1190 return handle->fns->readdir(handle, dirp, sbuf);
1191}
1192
1193void smb_vfs_call_seekdir(struct vfs_handle_struct *handle,
1194 SMB_STRUCT_DIR *dirp, long offset)
1195{
1196 VFS_FIND(seekdir);
1197 handle->fns->seekdir(handle, dirp, offset);
1198}
1199
1200long smb_vfs_call_telldir(struct vfs_handle_struct *handle,
1201 SMB_STRUCT_DIR *dirp)
1202{
1203 VFS_FIND(telldir);
1204 return handle->fns->telldir(handle, dirp);
1205}
1206
1207void smb_vfs_call_rewind_dir(struct vfs_handle_struct *handle,
1208 SMB_STRUCT_DIR *dirp)
1209{
1210 VFS_FIND(rewind_dir);
1211 handle->fns->rewind_dir(handle, dirp);
1212}
1213
1214int smb_vfs_call_mkdir(struct vfs_handle_struct *handle, const char *path,
1215 mode_t mode)
1216{
1217 VFS_FIND(mkdir);
1218 return handle->fns->mkdir(handle, path, mode);
1219}
1220
1221int smb_vfs_call_rmdir(struct vfs_handle_struct *handle, const char *path)
1222{
1223 VFS_FIND(rmdir);
1224 return handle->fns->rmdir(handle, path);
1225}
1226
1227int smb_vfs_call_closedir(struct vfs_handle_struct *handle,
1228 SMB_STRUCT_DIR *dir)
1229{
1230 VFS_FIND(closedir);
1231 return handle->fns->closedir(handle, dir);
1232}
1233
1234void smb_vfs_call_init_search_op(struct vfs_handle_struct *handle,
1235 SMB_STRUCT_DIR *dirp)
1236{
1237 VFS_FIND(init_search_op);
1238 handle->fns->init_search_op(handle, dirp);
1239}
1240
1241int smb_vfs_call_open(struct vfs_handle_struct *handle,
1242 struct smb_filename *smb_fname, struct files_struct *fsp,
1243 int flags, mode_t mode)
1244{
1245 VFS_FIND(open);
1246 return handle->fns->open(handle, smb_fname, fsp, flags, mode);
1247}
1248
1249NTSTATUS smb_vfs_call_create_file(struct vfs_handle_struct *handle,
1250 struct smb_request *req,
1251 uint16_t root_dir_fid,
1252 struct smb_filename *smb_fname,
1253 uint32_t access_mask,
1254 uint32_t share_access,
1255 uint32_t create_disposition,
1256 uint32_t create_options,
1257 uint32_t file_attributes,
1258 uint32_t oplock_request,
1259 uint64_t allocation_size,
1260 struct security_descriptor *sd,
1261 struct ea_list *ea_list,
1262 files_struct **result,
1263 int *pinfo)
1264{
1265 VFS_FIND(create_file);
1266 return handle->fns->create_file(
1267 handle, req, root_dir_fid, smb_fname, access_mask,
1268 share_access, create_disposition, create_options,
1269 file_attributes, oplock_request, allocation_size, sd, ea_list,
1270 result, pinfo);
1271}
1272
1273int smb_vfs_call_close_fn(struct vfs_handle_struct *handle,
1274 struct files_struct *fsp)
1275{
1276 VFS_FIND(close_fn);
1277 return handle->fns->close_fn(handle, fsp);
1278}
1279
1280ssize_t smb_vfs_call_vfs_read(struct vfs_handle_struct *handle,
1281 struct files_struct *fsp, void *data, size_t n)
1282{
1283 VFS_FIND(vfs_read);
1284 return handle->fns->vfs_read(handle, fsp, data, n);
1285}
1286
1287ssize_t smb_vfs_call_pread(struct vfs_handle_struct *handle,
1288 struct files_struct *fsp, void *data, size_t n,
1289 SMB_OFF_T offset)
1290{
1291 VFS_FIND(pread);
1292 return handle->fns->pread(handle, fsp, data, n, offset);
1293}
1294
1295ssize_t smb_vfs_call_write(struct vfs_handle_struct *handle,
1296 struct files_struct *fsp, const void *data,
1297 size_t n)
1298{
1299 VFS_FIND(write);
1300 return handle->fns->write(handle, fsp, data, n);
1301}
1302
1303ssize_t smb_vfs_call_pwrite(struct vfs_handle_struct *handle,
1304 struct files_struct *fsp, const void *data,
1305 size_t n, SMB_OFF_T offset)
1306{
1307 VFS_FIND(pwrite);
1308 return handle->fns->pwrite(handle, fsp, data, n, offset);
1309}
1310
1311SMB_OFF_T smb_vfs_call_lseek(struct vfs_handle_struct *handle,
1312 struct files_struct *fsp, SMB_OFF_T offset,
1313 int whence)
1314{
1315 VFS_FIND(lseek);
1316 return handle->fns->lseek(handle, fsp, offset, whence);
1317}
1318
1319ssize_t smb_vfs_call_sendfile(struct vfs_handle_struct *handle, int tofd,
1320 files_struct *fromfsp, const DATA_BLOB *header,
1321 SMB_OFF_T offset, size_t count)
1322{
1323 VFS_FIND(sendfile);
1324 return handle->fns->sendfile(handle, tofd, fromfsp, header, offset,
1325 count);
1326}
1327
1328ssize_t smb_vfs_call_recvfile(struct vfs_handle_struct *handle, int fromfd,
1329 files_struct *tofsp, SMB_OFF_T offset,
1330 size_t count)
1331{
1332 VFS_FIND(recvfile);
1333 return handle->fns->recvfile(handle, fromfd, tofsp, offset, count);
1334}
1335
1336int smb_vfs_call_rename(struct vfs_handle_struct *handle,
1337 const struct smb_filename *smb_fname_src,
1338 const struct smb_filename *smb_fname_dst)
1339{
1340 VFS_FIND(rename);
1341 return handle->fns->rename(handle, smb_fname_src, smb_fname_dst);
1342}
1343
1344int smb_vfs_call_fsync(struct vfs_handle_struct *handle,
1345 struct files_struct *fsp)
1346{
1347 VFS_FIND(fsync);
1348 return handle->fns->fsync(handle, fsp);
1349}
1350
1351int smb_vfs_call_stat(struct vfs_handle_struct *handle,
1352 struct smb_filename *smb_fname)
1353{
1354 VFS_FIND(stat);
1355 return handle->fns->stat(handle, smb_fname);
1356}
1357
1358int smb_vfs_call_fstat(struct vfs_handle_struct *handle,
1359 struct files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1360{
1361 VFS_FIND(fstat);
1362 return handle->fns->fstat(handle, fsp, sbuf);
1363}
1364
1365int smb_vfs_call_lstat(struct vfs_handle_struct *handle,
1366 struct smb_filename *smb_filename)
1367{
1368 VFS_FIND(lstat);
1369 return handle->fns->lstat(handle, smb_filename);
1370}
1371
1372uint64_t smb_vfs_call_get_alloc_size(struct vfs_handle_struct *handle,
1373 struct files_struct *fsp,
1374 const SMB_STRUCT_STAT *sbuf)
1375{
1376 VFS_FIND(get_alloc_size);
1377 return handle->fns->get_alloc_size(handle, fsp, sbuf);
1378}
1379
1380int smb_vfs_call_unlink(struct vfs_handle_struct *handle,
1381 const struct smb_filename *smb_fname)
1382{
1383 VFS_FIND(unlink);
1384 return handle->fns->unlink(handle, smb_fname);
1385}
1386
1387int smb_vfs_call_chmod(struct vfs_handle_struct *handle, const char *path,
1388 mode_t mode)
1389{
1390 VFS_FIND(chmod);
1391 return handle->fns->chmod(handle, path, mode);
1392}
1393
1394int smb_vfs_call_fchmod(struct vfs_handle_struct *handle,
1395 struct files_struct *fsp, mode_t mode)
1396{
1397 VFS_FIND(fchmod);
1398 return handle->fns->fchmod(handle, fsp, mode);
1399}
1400
1401int smb_vfs_call_chown(struct vfs_handle_struct *handle, const char *path,
1402 uid_t uid, gid_t gid)
1403{
1404 VFS_FIND(chown);
1405 return handle->fns->chown(handle, path, uid, gid);
1406}
1407
1408int smb_vfs_call_fchown(struct vfs_handle_struct *handle,
1409 struct files_struct *fsp, uid_t uid, gid_t gid)
1410{
1411 VFS_FIND(fchown);
1412 return handle->fns->fchown(handle, fsp, uid, gid);
1413}
1414
1415int smb_vfs_call_lchown(struct vfs_handle_struct *handle, const char *path,
1416 uid_t uid, gid_t gid)
1417{
1418 VFS_FIND(lchown);
1419 return handle->fns->lchown(handle, path, uid, gid);
1420}
1421
1422int smb_vfs_call_chdir(struct vfs_handle_struct *handle, const char *path)
1423{
1424 VFS_FIND(chdir);
1425 return handle->fns->chdir(handle, path);
1426}
1427
1428char *smb_vfs_call_getwd(struct vfs_handle_struct *handle, char *buf)
1429{
1430 VFS_FIND(getwd);
1431 return handle->fns->getwd(handle, buf);
1432}
1433
1434int smb_vfs_call_ntimes(struct vfs_handle_struct *handle,
1435 const struct smb_filename *smb_fname,
1436 struct smb_file_time *ft)
1437{
1438 VFS_FIND(ntimes);
1439 return handle->fns->ntimes(handle, smb_fname, ft);
1440}
1441
1442int smb_vfs_call_ftruncate(struct vfs_handle_struct *handle,
1443 struct files_struct *fsp, SMB_OFF_T offset)
1444{
1445 VFS_FIND(ftruncate);
1446 return handle->fns->ftruncate(handle, fsp, offset);
1447}
1448
1449int smb_vfs_call_kernel_flock(struct vfs_handle_struct *handle,
1450 struct files_struct *fsp, uint32 share_mode,
1451 uint32_t access_mask)
1452{
1453 VFS_FIND(kernel_flock);
1454 return handle->fns->kernel_flock(handle, fsp, share_mode,
1455 access_mask);
1456}
1457
1458int smb_vfs_call_linux_setlease(struct vfs_handle_struct *handle,
1459 struct files_struct *fsp, int leasetype)
1460{
1461 VFS_FIND(linux_setlease);
1462 return handle->fns->linux_setlease(handle, fsp, leasetype);
1463}
1464
1465int smb_vfs_call_symlink(struct vfs_handle_struct *handle, const char *oldpath,
1466 const char *newpath)
1467{
1468 VFS_FIND(symlink);
1469 return handle->fns->symlink(handle, oldpath, newpath);
1470}
1471
1472int smb_vfs_call_vfs_readlink(struct vfs_handle_struct *handle,
1473 const char *path, char *buf, size_t bufsiz)
1474{
1475 VFS_FIND(vfs_readlink);
1476 return handle->fns->vfs_readlink(handle, path, buf, bufsiz);
1477}
1478
1479int smb_vfs_call_link(struct vfs_handle_struct *handle, const char *oldpath,
1480 const char *newpath)
1481{
1482 VFS_FIND(link);
1483 return handle->fns->link(handle, oldpath, newpath);
1484}
1485
1486int smb_vfs_call_mknod(struct vfs_handle_struct *handle, const char *path,
1487 mode_t mode, SMB_DEV_T dev)
1488{
1489 VFS_FIND(mknod);
1490 return handle->fns->mknod(handle, path, mode, dev);
1491}
1492
1493char *smb_vfs_call_realpath(struct vfs_handle_struct *handle,
1494 const char *path, char *resolved_path)
1495{
1496 VFS_FIND(realpath);
1497 return handle->fns->realpath(handle, path, resolved_path);
1498}
1499
1500NTSTATUS smb_vfs_call_notify_watch(struct vfs_handle_struct *handle,
1501 struct sys_notify_context *ctx,
1502 struct notify_entry *e,
1503 void (*callback)(struct sys_notify_context *ctx,
1504 void *private_data,
1505 struct notify_event *ev),
1506 void *private_data, void *handle_p)
1507{
1508 VFS_FIND(notify_watch);
1509 return handle->fns->notify_watch(handle, ctx, e, callback,
1510 private_data, handle_p);
1511}
1512
1513int smb_vfs_call_chflags(struct vfs_handle_struct *handle, const char *path,
1514 unsigned int flags)
1515{
1516 VFS_FIND(chflags);
1517 return handle->fns->chflags(handle, path, flags);
1518}
1519
1520struct file_id smb_vfs_call_file_id_create(struct vfs_handle_struct *handle,
1521 const SMB_STRUCT_STAT *sbuf)
1522{
1523 VFS_FIND(file_id_create);
1524 return handle->fns->file_id_create(handle, sbuf);
1525}
1526
1527NTSTATUS smb_vfs_call_streaminfo(struct vfs_handle_struct *handle,
1528 struct files_struct *fsp,
1529 const char *fname,
1530 TALLOC_CTX *mem_ctx,
1531 unsigned int *num_streams,
1532 struct stream_struct **streams)
1533{
1534 VFS_FIND(streaminfo);
1535 return handle->fns->streaminfo(handle, fsp, fname, mem_ctx,
1536 num_streams, streams);
1537}
1538
1539int smb_vfs_call_get_real_filename(struct vfs_handle_struct *handle,
1540 const char *path, const char *name,
1541 TALLOC_CTX *mem_ctx, char **found_name)
1542{
1543 VFS_FIND(get_real_filename);
1544 return handle->fns->get_real_filename(handle, path, name, mem_ctx,
1545 found_name);
1546}
1547
1548const char *smb_vfs_call_connectpath(struct vfs_handle_struct *handle,
1549 const char *filename)
1550{
1551 VFS_FIND(connectpath);
1552 return handle->fns->connectpath(handle, filename);
1553}
1554
1555bool smb_vfs_call_strict_lock(struct vfs_handle_struct *handle,
1556 struct files_struct *fsp,
1557 struct lock_struct *plock)
1558{
1559 VFS_FIND(strict_lock);
1560 return handle->fns->strict_lock(handle, fsp, plock);
1561}
1562
1563void smb_vfs_call_strict_unlock(struct vfs_handle_struct *handle,
1564 struct files_struct *fsp,
1565 struct lock_struct *plock)
1566{
1567 VFS_FIND(strict_unlock);
1568 handle->fns->strict_unlock(handle, fsp, plock);
1569}
1570
1571NTSTATUS smb_vfs_call_translate_name(struct vfs_handle_struct *handle,
1572 const char *name,
1573 enum vfs_translate_direction direction,
1574 TALLOC_CTX *mem_ctx,
1575 char **mapped_name)
1576{
1577 VFS_FIND(translate_name);
1578 return handle->fns->translate_name(handle, name, direction, mem_ctx,
1579 mapped_name);
1580}
1581
1582NTSTATUS smb_vfs_call_fget_nt_acl(struct vfs_handle_struct *handle,
1583 struct files_struct *fsp,
1584 uint32 security_info,
1585 struct security_descriptor **ppdesc)
1586{
1587 VFS_FIND(fget_nt_acl);
1588 return handle->fns->fget_nt_acl(handle, fsp, security_info,
1589 ppdesc);
1590}
1591
1592NTSTATUS smb_vfs_call_get_nt_acl(struct vfs_handle_struct *handle,
1593 const char *name,
1594 uint32 security_info,
1595 struct security_descriptor **ppdesc)
1596{
1597 VFS_FIND(get_nt_acl);
1598 return handle->fns->get_nt_acl(handle, name, security_info, ppdesc);
1599}
1600
1601NTSTATUS smb_vfs_call_fset_nt_acl(struct vfs_handle_struct *handle,
1602 struct files_struct *fsp,
1603 uint32 security_info_sent,
1604 const struct security_descriptor *psd)
1605{
1606 VFS_FIND(fset_nt_acl);
1607 return handle->fns->fset_nt_acl(handle, fsp, security_info_sent, psd);
1608}
1609
1610int smb_vfs_call_chmod_acl(struct vfs_handle_struct *handle, const char *name,
1611 mode_t mode)
1612{
1613 VFS_FIND(chmod_acl);
1614 return handle->fns->chmod_acl(handle, name, mode);
1615}
1616
1617int smb_vfs_call_fchmod_acl(struct vfs_handle_struct *handle,
1618 struct files_struct *fsp, mode_t mode)
1619{
1620 VFS_FIND(fchmod_acl);
1621 return handle->fns->fchmod_acl(handle, fsp, mode);
1622}
1623
1624int smb_vfs_call_sys_acl_get_entry(struct vfs_handle_struct *handle,
1625 SMB_ACL_T theacl, int entry_id,
1626 SMB_ACL_ENTRY_T *entry_p)
1627{
1628 VFS_FIND(sys_acl_get_entry);
1629 return handle->fns->sys_acl_get_entry(handle, theacl, entry_id,
1630 entry_p);
1631}
1632
1633int smb_vfs_call_sys_acl_get_tag_type(struct vfs_handle_struct *handle,
1634 SMB_ACL_ENTRY_T entry_d,
1635 SMB_ACL_TAG_T *tag_type_p)
1636{
1637 VFS_FIND(sys_acl_get_tag_type);
1638 return handle->fns->sys_acl_get_tag_type(handle, entry_d, tag_type_p);
1639}
1640
1641int smb_vfs_call_sys_acl_get_permset(struct vfs_handle_struct *handle,
1642 SMB_ACL_ENTRY_T entry_d,
1643 SMB_ACL_PERMSET_T *permset_p)
1644{
1645 VFS_FIND(sys_acl_get_permset);
1646 return handle->fns->sys_acl_get_permset(handle, entry_d, permset_p);
1647}
1648
1649void * smb_vfs_call_sys_acl_get_qualifier(struct vfs_handle_struct *handle,
1650 SMB_ACL_ENTRY_T entry_d)
1651{
1652 VFS_FIND(sys_acl_get_qualifier);
1653 return handle->fns->sys_acl_get_qualifier(handle, entry_d);
1654}
1655
1656SMB_ACL_T smb_vfs_call_sys_acl_get_file(struct vfs_handle_struct *handle,
1657 const char *path_p,
1658 SMB_ACL_TYPE_T type)
1659{
1660 VFS_FIND(sys_acl_get_file);
1661 return handle->fns->sys_acl_get_file(handle, path_p, type);
1662}
1663
1664SMB_ACL_T smb_vfs_call_sys_acl_get_fd(struct vfs_handle_struct *handle,
1665 struct files_struct *fsp)
1666{
1667 VFS_FIND(sys_acl_get_fd);
1668 return handle->fns->sys_acl_get_fd(handle, fsp);
1669}
1670
1671int smb_vfs_call_sys_acl_clear_perms(struct vfs_handle_struct *handle,
1672 SMB_ACL_PERMSET_T permset)
1673{
1674 VFS_FIND(sys_acl_clear_perms);
1675 return handle->fns->sys_acl_clear_perms(handle, permset);
1676}
1677
1678int smb_vfs_call_sys_acl_add_perm(struct vfs_handle_struct *handle,
1679 SMB_ACL_PERMSET_T permset,
1680 SMB_ACL_PERM_T perm)
1681{
1682 VFS_FIND(sys_acl_add_perm);
1683 return handle->fns->sys_acl_add_perm(handle, permset, perm);
1684}
1685
1686char * smb_vfs_call_sys_acl_to_text(struct vfs_handle_struct *handle,
1687 SMB_ACL_T theacl, ssize_t *plen)
1688{
1689 VFS_FIND(sys_acl_to_text);
1690 return handle->fns->sys_acl_to_text(handle, theacl, plen);
1691}
1692
1693SMB_ACL_T smb_vfs_call_sys_acl_init(struct vfs_handle_struct *handle,
1694 int count)
1695{
1696 VFS_FIND(sys_acl_init);
1697 return handle->fns->sys_acl_init(handle, count);
1698}
1699
1700int smb_vfs_call_sys_acl_create_entry(struct vfs_handle_struct *handle,
1701 SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry)
1702{
1703 VFS_FIND(sys_acl_create_entry);
1704 return handle->fns->sys_acl_create_entry(handle, pacl, pentry);
1705}
1706
1707int smb_vfs_call_sys_acl_set_tag_type(struct vfs_handle_struct *handle,
1708 SMB_ACL_ENTRY_T entry,
1709 SMB_ACL_TAG_T tagtype)
1710{
1711 VFS_FIND(sys_acl_set_tag_type);
1712 return handle->fns->sys_acl_set_tag_type(handle, entry, tagtype);
1713}
1714
1715int smb_vfs_call_sys_acl_set_qualifier(struct vfs_handle_struct *handle,
1716 SMB_ACL_ENTRY_T entry, void *qual)
1717{
1718 VFS_FIND(sys_acl_set_qualifier);
1719 return handle->fns->sys_acl_set_qualifier(handle, entry, qual);
1720}
1721
1722int smb_vfs_call_sys_acl_set_permset(struct vfs_handle_struct *handle,
1723 SMB_ACL_ENTRY_T entry,
1724 SMB_ACL_PERMSET_T permset)
1725{
1726 VFS_FIND(sys_acl_set_permset);
1727 return handle->fns->sys_acl_set_permset(handle, entry, permset);
1728}
1729
1730int smb_vfs_call_sys_acl_valid(struct vfs_handle_struct *handle,
1731 SMB_ACL_T theacl)
1732{
1733 VFS_FIND(sys_acl_valid);
1734 return handle->fns->sys_acl_valid(handle, theacl);
1735}
1736
1737int smb_vfs_call_sys_acl_set_file(struct vfs_handle_struct *handle,
1738 const char *name, SMB_ACL_TYPE_T acltype,
1739 SMB_ACL_T theacl)
1740{
1741 VFS_FIND(sys_acl_set_file);
1742 return handle->fns->sys_acl_set_file(handle, name, acltype, theacl);
1743}
1744
1745int smb_vfs_call_sys_acl_set_fd(struct vfs_handle_struct *handle,
1746 struct files_struct *fsp, SMB_ACL_T theacl)
1747{
1748 VFS_FIND(sys_acl_set_fd);
1749 return handle->fns->sys_acl_set_fd(handle, fsp, theacl);
1750}
1751
1752int smb_vfs_call_sys_acl_delete_def_file(struct vfs_handle_struct *handle,
1753 const char *path)
1754{
1755 VFS_FIND(sys_acl_delete_def_file);
1756 return handle->fns->sys_acl_delete_def_file(handle, path);
1757}
1758
1759int smb_vfs_call_sys_acl_get_perm(struct vfs_handle_struct *handle,
1760 SMB_ACL_PERMSET_T permset,
1761 SMB_ACL_PERM_T perm)
1762{
1763 VFS_FIND(sys_acl_get_perm);
1764 return handle->fns->sys_acl_get_perm(handle, permset, perm);
1765}
1766
1767int smb_vfs_call_sys_acl_free_text(struct vfs_handle_struct *handle,
1768 char *text)
1769{
1770 VFS_FIND(sys_acl_free_text);
1771 return handle->fns->sys_acl_free_text(handle, text);
1772}
1773
1774int smb_vfs_call_sys_acl_free_acl(struct vfs_handle_struct *handle,
1775 SMB_ACL_T posix_acl)
1776{
1777 VFS_FIND(sys_acl_free_acl);
1778 return handle->fns->sys_acl_free_acl(handle, posix_acl);
1779}
1780
1781int smb_vfs_call_sys_acl_free_qualifier(struct vfs_handle_struct *handle,
1782 void *qualifier, SMB_ACL_TAG_T tagtype)
1783{
1784 VFS_FIND(sys_acl_free_qualifier);
1785 return handle->fns->sys_acl_free_qualifier(handle, qualifier, tagtype);
1786}
1787
1788ssize_t smb_vfs_call_getxattr(struct vfs_handle_struct *handle,
1789 const char *path, const char *name, void *value,
1790 size_t size)
1791{
1792 VFS_FIND(getxattr);
1793 return handle->fns->getxattr(handle, path, name, value, size);
1794}
1795
1796ssize_t smb_vfs_call_lgetxattr(struct vfs_handle_struct *handle,
1797 const char *path, const char *name, void *value,
1798 size_t size)
1799{
1800 VFS_FIND(lgetxattr);
1801 return handle->fns->lgetxattr(handle, path, name, value, size);
1802}
1803
1804ssize_t smb_vfs_call_fgetxattr(struct vfs_handle_struct *handle,
1805 struct files_struct *fsp, const char *name,
1806 void *value, size_t size)
1807{
1808 VFS_FIND(fgetxattr);
1809 return handle->fns->fgetxattr(handle, fsp, name, value, size);
1810}
1811
1812ssize_t smb_vfs_call_listxattr(struct vfs_handle_struct *handle,
1813 const char *path, char *list, size_t size)
1814{
1815 VFS_FIND(listxattr);
1816 return handle->fns->listxattr(handle, path, list, size);
1817}
1818
1819ssize_t smb_vfs_call_llistxattr(struct vfs_handle_struct *handle,
1820 const char *path, char *list, size_t size)
1821{
1822 VFS_FIND(llistxattr);
1823 return handle->fns->llistxattr(handle, path, list, size);
1824}
1825
1826ssize_t smb_vfs_call_flistxattr(struct vfs_handle_struct *handle,
1827 struct files_struct *fsp, char *list,
1828 size_t size)
1829{
1830 VFS_FIND(flistxattr);
1831 return handle->fns->flistxattr(handle, fsp, list, size);
1832}
1833
1834int smb_vfs_call_removexattr(struct vfs_handle_struct *handle,
1835 const char *path, const char *name)
1836{
1837 VFS_FIND(removexattr);
1838 return handle->fns->removexattr(handle, path, name);
1839}
1840
1841int smb_vfs_call_lremovexattr(struct vfs_handle_struct *handle,
1842 const char *path, const char *name)
1843{
1844 VFS_FIND(lremovexattr);
1845 return handle->fns->lremovexattr(handle, path, name);
1846}
1847
1848int smb_vfs_call_fremovexattr(struct vfs_handle_struct *handle,
1849 struct files_struct *fsp, const char *name)
1850{
1851 VFS_FIND(fremovexattr);
1852 return handle->fns->fremovexattr(handle, fsp, name);
1853}
1854
1855int smb_vfs_call_setxattr(struct vfs_handle_struct *handle, const char *path,
1856 const char *name, const void *value, size_t size,
1857 int flags)
1858{
1859 VFS_FIND(setxattr);
1860 return handle->fns->setxattr(handle, path, name, value, size, flags);
1861}
1862
1863int smb_vfs_call_lsetxattr(struct vfs_handle_struct *handle, const char *path,
1864 const char *name, const void *value, size_t size,
1865 int flags)
1866{
1867 VFS_FIND(lsetxattr);
1868 return handle->fns->lsetxattr(handle, path, name, value, size, flags);
1869}
1870
1871int smb_vfs_call_fsetxattr(struct vfs_handle_struct *handle,
1872 struct files_struct *fsp, const char *name,
1873 const void *value, size_t size, int flags)
1874{
1875 VFS_FIND(fsetxattr);
1876 return handle->fns->fsetxattr(handle, fsp, name, value, size, flags);
1877}
1878
1879int smb_vfs_call_aio_read(struct vfs_handle_struct *handle,
1880 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
1881{
1882 VFS_FIND(aio_read);
1883 return handle->fns->aio_read(handle, fsp, aiocb);
1884}
1885
1886int smb_vfs_call_aio_write(struct vfs_handle_struct *handle,
1887 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
1888{
1889 VFS_FIND(aio_write);
1890 return handle->fns->aio_write(handle, fsp, aiocb);
1891}
1892
1893ssize_t smb_vfs_call_aio_return_fn(struct vfs_handle_struct *handle,
1894 struct files_struct *fsp,
1895 SMB_STRUCT_AIOCB *aiocb)
1896{
1897 VFS_FIND(aio_return_fn);
1898 return handle->fns->aio_return_fn(handle, fsp, aiocb);
1899}
1900
1901int smb_vfs_call_aio_cancel(struct vfs_handle_struct *handle,
1902 struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
1903{
1904 VFS_FIND(aio_cancel);
1905 return handle->fns->aio_cancel(handle, fsp, aiocb);
1906}
1907
1908int smb_vfs_call_aio_error_fn(struct vfs_handle_struct *handle,
1909 struct files_struct *fsp,
1910 SMB_STRUCT_AIOCB *aiocb)
1911{
1912 VFS_FIND(aio_error_fn);
1913 return handle->fns->aio_error_fn(handle, fsp, aiocb);
1914}
1915
1916int smb_vfs_call_aio_fsync(struct vfs_handle_struct *handle,
1917 struct files_struct *fsp, int op,
1918 SMB_STRUCT_AIOCB *aiocb)
1919{
1920 VFS_FIND(aio_fsync);
1921 return handle->fns->aio_fsync(handle, fsp, op, aiocb);
1922}
1923
1924int smb_vfs_call_aio_suspend(struct vfs_handle_struct *handle,
1925 struct files_struct *fsp,
1926 const SMB_STRUCT_AIOCB * const aiocb[], int n,
1927 const struct timespec *timeout)
1928{
1929 VFS_FIND(aio_suspend);
1930 return handle->fns->aio_suspend(handle, fsp, aiocb, n, timeout);
1931}
1932
1933bool smb_vfs_call_aio_force(struct vfs_handle_struct *handle,
1934 struct files_struct *fsp)
1935{
1936 VFS_FIND(aio_force);
1937 return handle->fns->aio_force(handle, fsp);
1938}
1939
1940bool smb_vfs_call_is_offline(struct vfs_handle_struct *handle,
1941 const char *path, SMB_STRUCT_STAT *sbuf)
1942{
1943 VFS_FIND(is_offline);
1944 return handle->fns->is_offline(handle, path, sbuf);
1945}
1946
1947int smb_vfs_call_set_offline(struct vfs_handle_struct *handle,
1948 const char *path)
1949{
1950 VFS_FIND(set_offline);
1951 return handle->fns->set_offline(handle, path);
1952}
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