s3-talloc Change TALLOC_ZERO_P() to talloc_zero()
[nivanova/samba-autobuild/.git] / source3 / smbd / vfs.c
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 "system/filesys.h"
28 #include "smbd/smbd.h"
29 #include "smbd/globals.h"
30 #include "memcache.h"
31 #include "transfer_file.h"
32 #include "ntioctl.h"
33
34 #undef DBGC_CLASS
35 #define DBGC_CLASS DBGC_VFS
36
37 static_decl_vfs;
38
39 struct vfs_init_function_entry {
40         char *name;
41         struct vfs_init_function_entry *prev, *next;
42         const struct vfs_fn_pointers *fns;
43 };
44
45 /****************************************************************************
46     maintain the list of available backends
47 ****************************************************************************/
48
49 static struct vfs_init_function_entry *vfs_find_backend_entry(const char *name)
50 {
51         struct vfs_init_function_entry *entry = backends;
52
53         DEBUG(10, ("vfs_find_backend_entry called for %s\n", name));
54
55         while(entry) {
56                 if (strcmp(entry->name, name)==0) return entry;
57                 entry = entry->next;
58         }
59
60         return NULL;
61 }
62
63 NTSTATUS smb_register_vfs(int version, const char *name,
64                           const struct vfs_fn_pointers *fns)
65 {
66         struct vfs_init_function_entry *entry = backends;
67
68         if ((version != SMB_VFS_INTERFACE_VERSION)) {
69                 DEBUG(0, ("Failed to register vfs module.\n"
70                           "The module was compiled against SMB_VFS_INTERFACE_VERSION %d,\n"
71                           "current SMB_VFS_INTERFACE_VERSION is %d.\n"
72                           "Please recompile against the current Samba Version!\n",  
73                           version, SMB_VFS_INTERFACE_VERSION));
74                 return NT_STATUS_OBJECT_TYPE_MISMATCH;
75         }
76
77         if (!name || !name[0]) {
78                 DEBUG(0,("smb_register_vfs() called with NULL pointer or empty name!\n"));
79                 return NT_STATUS_INVALID_PARAMETER;
80         }
81
82         if (vfs_find_backend_entry(name)) {
83                 DEBUG(0,("VFS module %s already loaded!\n", name));
84                 return NT_STATUS_OBJECT_NAME_COLLISION;
85         }
86
87         entry = SMB_XMALLOC_P(struct vfs_init_function_entry);
88         entry->name = smb_xstrdup(name);
89         entry->fns = fns;
90
91         DLIST_ADD(backends, entry);
92         DEBUG(5, ("Successfully added vfs backend '%s'\n", name));
93         return NT_STATUS_OK;
94 }
95
96 /****************************************************************************
97   initialise default vfs hooks
98 ****************************************************************************/
99
100 static void vfs_init_default(connection_struct *conn)
101 {
102         DEBUG(3, ("Initialising default vfs hooks\n"));
103         vfs_init_custom(conn, DEFAULT_VFS_MODULE_NAME);
104 }
105
106 /****************************************************************************
107   initialise custom vfs hooks
108  ****************************************************************************/
109
110 bool vfs_init_custom(connection_struct *conn, const char *vfs_object)
111 {
112         char *module_path = NULL;
113         char *module_name = NULL;
114         char *module_param = NULL, *p;
115         vfs_handle_struct *handle;
116         const struct vfs_init_function_entry *entry;
117
118         if (!conn||!vfs_object||!vfs_object[0]) {
119                 DEBUG(0, ("vfs_init_custom() called with NULL pointer or "
120                           "empty vfs_object!\n"));
121                 return False;
122         }
123
124         if(!backends) {
125                 static_init_vfs;
126         }
127
128         DEBUG(3, ("Initialising custom vfs hooks from [%s]\n", vfs_object));
129
130         module_path = smb_xstrdup(vfs_object);
131
132         p = strchr_m(module_path, ':');
133
134         if (p) {
135                 *p = 0;
136                 module_param = p+1;
137                 trim_char(module_param, ' ', ' ');
138         }
139
140         trim_char(module_path, ' ', ' ');
141
142         module_name = smb_xstrdup(module_path);
143
144         if ((module_name[0] == '/') &&
145             (strcmp(module_path, DEFAULT_VFS_MODULE_NAME) != 0)) {
146
147                 /*
148                  * Extract the module name from the path. Just use the base
149                  * name of the last path component.
150                  */
151
152                 SAFE_FREE(module_name);
153                 module_name = smb_xstrdup(strrchr_m(module_path, '/')+1);
154
155                 p = strchr_m(module_name, '.');
156
157                 if (p != NULL) {
158                         *p = '\0';
159                 }
160         }
161
162         /* First, try to load the module with the new module system */
163         entry = vfs_find_backend_entry(module_name);
164         if (!entry) {
165                 NTSTATUS status;
166
167                 DEBUG(5, ("vfs module [%s] not loaded - trying to load...\n",
168                           vfs_object));
169
170                 status = smb_probe_module("vfs", module_path);
171                 if (!NT_STATUS_IS_OK(status)) {
172                         DEBUG(0, ("error probing vfs module '%s': %s\n",
173                                   module_path, nt_errstr(status)));
174                         goto fail;
175                 }
176
177                 entry = vfs_find_backend_entry(module_name);
178                 if (!entry) {
179                         DEBUG(0,("Can't find a vfs module [%s]\n",vfs_object));
180                         goto fail;
181                 }
182         }
183
184         DEBUGADD(5,("Successfully loaded vfs module [%s] with the new modules system\n", vfs_object));
185
186         handle = talloc_zero(conn, vfs_handle_struct);
187         if (!handle) {
188                 DEBUG(0,("TALLOC_ZERO() failed!\n"));
189                 goto fail;
190         }
191         handle->conn = conn;
192         handle->fns = entry->fns;
193         if (module_param) {
194                 handle->param = talloc_strdup(conn, module_param);
195         }
196         DLIST_ADD(conn->vfs_handles, handle);
197
198         SAFE_FREE(module_path);
199         SAFE_FREE(module_name);
200         return True;
201
202  fail:
203         SAFE_FREE(module_path);
204         SAFE_FREE(module_name);
205         return False;
206 }
207
208 /*****************************************************************
209  Allow VFS modules to extend files_struct with VFS-specific state.
210  This will be ok for small numbers of extensions, but might need to
211  be refactored if it becomes more widely used.
212 ******************************************************************/
213
214 #define EXT_DATA_AREA(e) ((uint8 *)(e) + sizeof(struct vfs_fsp_data))
215
216 void *vfs_add_fsp_extension_notype(vfs_handle_struct *handle,
217                                    files_struct *fsp, size_t ext_size,
218                                    void (*destroy_fn)(void *p_data))
219 {
220         struct vfs_fsp_data *ext;
221         void * ext_data;
222
223         /* Prevent VFS modules adding multiple extensions. */
224         if ((ext_data = vfs_fetch_fsp_extension(handle, fsp))) {
225                 return ext_data;
226         }
227
228         ext = (struct vfs_fsp_data *)TALLOC_ZERO(
229                 handle->conn, sizeof(struct vfs_fsp_data) + ext_size);
230         if (ext == NULL) {
231                 return NULL;
232         }
233
234         ext->owner = handle;
235         ext->next = fsp->vfs_extension;
236         ext->destroy = destroy_fn;
237         fsp->vfs_extension = ext;
238         return EXT_DATA_AREA(ext);
239 }
240
241 void vfs_remove_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
242 {
243         struct vfs_fsp_data *curr;
244         struct vfs_fsp_data *prev;
245
246         for (curr = fsp->vfs_extension, prev = NULL;
247              curr;
248              prev = curr, curr = curr->next) {
249                 if (curr->owner == handle) {
250                     if (prev) {
251                             prev->next = curr->next;
252                     } else {
253                             fsp->vfs_extension = curr->next;
254                     }
255                     if (curr->destroy) {
256                             curr->destroy(EXT_DATA_AREA(curr));
257                     }
258                     TALLOC_FREE(curr);
259                     return;
260                 }
261         }
262 }
263
264 void *vfs_memctx_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
265 {
266         struct vfs_fsp_data *head;
267
268         for (head = fsp->vfs_extension; head; head = head->next) {
269                 if (head->owner == handle) {
270                         return head;
271                 }
272         }
273
274         return NULL;
275 }
276
277 void *vfs_fetch_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
278 {
279         struct vfs_fsp_data *head;
280
281         head = (struct vfs_fsp_data *)vfs_memctx_fsp_extension(handle, fsp);
282         if (head != NULL) {
283                 return EXT_DATA_AREA(head);
284         }
285
286         return NULL;
287 }
288
289 #undef EXT_DATA_AREA
290
291 /*****************************************************************
292  Generic VFS init.
293 ******************************************************************/
294
295 bool smbd_vfs_init(connection_struct *conn)
296 {
297         const char **vfs_objects;
298         unsigned int i = 0;
299         int j = 0;
300
301         /* Normal share - initialise with disk access functions */
302         vfs_init_default(conn);
303         vfs_objects = lp_vfs_objects(SNUM(conn));
304
305         /* Override VFS functions if 'vfs object' was not specified*/
306         if (!vfs_objects || !vfs_objects[0])
307                 return True;
308
309         for (i=0; vfs_objects[i] ;) {
310                 i++;
311         }
312
313         for (j=i-1; j >= 0; j--) {
314                 if (!vfs_init_custom(conn, vfs_objects[j])) {
315                         DEBUG(0, ("smbd_vfs_init: vfs_init_custom failed for %s\n", vfs_objects[j]));
316                         return False;
317                 }
318         }
319         return True;
320 }
321
322 /*******************************************************************
323  Check if a file exists in the vfs.
324 ********************************************************************/
325
326 NTSTATUS vfs_file_exist(connection_struct *conn, struct smb_filename *smb_fname)
327 {
328         /* Only return OK if stat was successful and S_ISREG */
329         if ((SMB_VFS_STAT(conn, smb_fname) != -1) &&
330             S_ISREG(smb_fname->st.st_ex_mode)) {
331                 return NT_STATUS_OK;
332         }
333
334         return NT_STATUS_OBJECT_NAME_NOT_FOUND;
335 }
336
337 /****************************************************************************
338  Read data from fsp on the vfs. (note: EINTR re-read differs from vfs_write_data)
339 ****************************************************************************/
340
341 ssize_t vfs_read_data(files_struct *fsp, char *buf, size_t byte_count)
342 {
343         size_t total=0;
344
345         while (total < byte_count)
346         {
347                 ssize_t ret = SMB_VFS_READ(fsp, buf + total,
348                                            byte_count - total);
349
350                 if (ret == 0) return total;
351                 if (ret == -1) {
352                         if (errno == EINTR)
353                                 continue;
354                         else
355                                 return -1;
356                 }
357                 total += ret;
358         }
359         return (ssize_t)total;
360 }
361
362 ssize_t vfs_pread_data(files_struct *fsp, char *buf,
363                 size_t byte_count, SMB_OFF_T offset)
364 {
365         size_t total=0;
366
367         while (total < byte_count)
368         {
369                 ssize_t ret = SMB_VFS_PREAD(fsp, buf + total,
370                                         byte_count - total, offset + total);
371
372                 if (ret == 0) return total;
373                 if (ret == -1) {
374                         if (errno == EINTR)
375                                 continue;
376                         else
377                                 return -1;
378                 }
379                 total += ret;
380         }
381         return (ssize_t)total;
382 }
383
384 /****************************************************************************
385  Write data to a fd on the vfs.
386 ****************************************************************************/
387
388 ssize_t vfs_write_data(struct smb_request *req,
389                         files_struct *fsp,
390                         const char *buffer,
391                         size_t N)
392 {
393         size_t total=0;
394         ssize_t ret;
395
396         if (req && req->unread_bytes) {
397                 SMB_ASSERT(req->unread_bytes == N);
398                 /* VFS_RECVFILE must drain the socket
399                  * before returning. */
400                 req->unread_bytes = 0;
401                 return SMB_VFS_RECVFILE(req->sconn->sock,
402                                         fsp,
403                                         (SMB_OFF_T)-1,
404                                         N);
405         }
406
407         while (total < N) {
408                 ret = SMB_VFS_WRITE(fsp, buffer + total, N - total);
409
410                 if (ret == -1)
411                         return -1;
412                 if (ret == 0)
413                         return total;
414
415                 total += ret;
416         }
417         return (ssize_t)total;
418 }
419
420 ssize_t vfs_pwrite_data(struct smb_request *req,
421                         files_struct *fsp,
422                         const char *buffer,
423                         size_t N,
424                         SMB_OFF_T offset)
425 {
426         size_t total=0;
427         ssize_t ret;
428
429         if (req && req->unread_bytes) {
430                 SMB_ASSERT(req->unread_bytes == N);
431                 /* VFS_RECVFILE must drain the socket
432                  * before returning. */
433                 req->unread_bytes = 0;
434                 return SMB_VFS_RECVFILE(req->sconn->sock,
435                                         fsp,
436                                         offset,
437                                         N);
438         }
439
440         while (total < N) {
441                 ret = SMB_VFS_PWRITE(fsp, buffer + total, N - total,
442                                      offset + total);
443
444                 if (ret == -1)
445                         return -1;
446                 if (ret == 0)
447                         return total;
448
449                 total += ret;
450         }
451         return (ssize_t)total;
452 }
453 /****************************************************************************
454  An allocate file space call using the vfs interface.
455  Allocates space for a file from a filedescriptor.
456  Returns 0 on success, -1 on failure.
457 ****************************************************************************/
458
459 int vfs_allocate_file_space(files_struct *fsp, uint64_t len)
460 {
461         int ret;
462         connection_struct *conn = fsp->conn;
463         uint64_t space_avail;
464         uint64_t bsize,dfree,dsize;
465         NTSTATUS status;
466
467         /*
468          * Actually try and commit the space on disk....
469          */
470
471         DEBUG(10,("vfs_allocate_file_space: file %s, len %.0f\n",
472                   fsp_str_dbg(fsp), (double)len));
473
474         if (((SMB_OFF_T)len) < 0) {
475                 DEBUG(0,("vfs_allocate_file_space: %s negative len "
476                          "requested.\n", fsp_str_dbg(fsp)));
477                 errno = EINVAL;
478                 return -1;
479         }
480
481         status = vfs_stat_fsp(fsp);
482         if (!NT_STATUS_IS_OK(status)) {
483                 return -1;
484         }
485
486         if (len == (uint64_t)fsp->fsp_name->st.st_ex_size)
487                 return 0;
488
489         if (len < (uint64_t)fsp->fsp_name->st.st_ex_size) {
490                 /* Shrink - use ftruncate. */
491
492                 DEBUG(10,("vfs_allocate_file_space: file %s, shrink. Current "
493                           "size %.0f\n", fsp_str_dbg(fsp),
494                           (double)fsp->fsp_name->st.st_ex_size));
495
496                 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_ALLOC_SHRINK);
497
498                 flush_write_cache(fsp, SIZECHANGE_FLUSH);
499                 if ((ret = SMB_VFS_FTRUNCATE(fsp, (SMB_OFF_T)len)) != -1) {
500                         set_filelen_write_cache(fsp, len);
501                 }
502
503                 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_ALLOC_SHRINK);
504
505                 return ret;
506         }
507
508         if (!lp_strict_allocate(SNUM(fsp->conn)))
509                 return 0;
510
511         /* Grow - we need to test if we have enough space. */
512
513         contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_ALLOC_GROW);
514
515         /* See if we have a syscall that will allocate beyond end-of-file
516            without changing EOF. */
517         ret = SMB_VFS_FALLOCATE(fsp, VFS_FALLOCATE_KEEP_SIZE, 0, len);
518
519         contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_ALLOC_GROW);
520
521         if (ret == 0) {
522                 /* We changed the allocation size on disk, but not
523                    EOF - exactly as required. We're done ! */
524                 return 0;
525         }
526
527         len -= fsp->fsp_name->st.st_ex_size;
528         len /= 1024; /* Len is now number of 1k blocks needed. */
529         space_avail = get_dfree_info(conn, fsp->fsp_name->base_name, false,
530                                      &bsize, &dfree, &dsize);
531         if (space_avail == (uint64_t)-1) {
532                 return -1;
533         }
534
535         DEBUG(10,("vfs_allocate_file_space: file %s, grow. Current size %.0f, "
536                   "needed blocks = %.0f, space avail = %.0f\n",
537                   fsp_str_dbg(fsp), (double)fsp->fsp_name->st.st_ex_size, (double)len,
538                   (double)space_avail));
539
540         if (len > space_avail) {
541                 errno = ENOSPC;
542                 return -1;
543         }
544
545         return 0;
546 }
547
548 /****************************************************************************
549  A vfs set_filelen call.
550  set the length of a file from a filedescriptor.
551  Returns 0 on success, -1 on failure.
552 ****************************************************************************/
553
554 int vfs_set_filelen(files_struct *fsp, SMB_OFF_T len)
555 {
556         int ret;
557
558         contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_SET_FILE_LEN);
559
560         DEBUG(10,("vfs_set_filelen: ftruncate %s to len %.0f\n",
561                   fsp_str_dbg(fsp), (double)len));
562         flush_write_cache(fsp, SIZECHANGE_FLUSH);
563         if ((ret = SMB_VFS_FTRUNCATE(fsp, len)) != -1) {
564                 set_filelen_write_cache(fsp, len);
565                 notify_fname(fsp->conn, NOTIFY_ACTION_MODIFIED,
566                              FILE_NOTIFY_CHANGE_SIZE
567                              | FILE_NOTIFY_CHANGE_ATTRIBUTES,
568                              fsp->fsp_name->base_name);
569         }
570
571         contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_SET_FILE_LEN);
572
573         return ret;
574 }
575
576 /****************************************************************************
577  A slow version of fallocate. Fallback code if SMB_VFS_FALLOCATE
578  fails. Needs to be outside of the default version of SMB_VFS_FALLOCATE
579  as this is also called from the default SMB_VFS_FTRUNCATE code.
580  Always extends the file size.
581  Returns 0 on success, errno on failure.
582 ****************************************************************************/
583
584 #define SPARSE_BUF_WRITE_SIZE (32*1024)
585
586 int vfs_slow_fallocate(files_struct *fsp, SMB_OFF_T offset, SMB_OFF_T len)
587 {
588         ssize_t pwrite_ret;
589         size_t total = 0;
590
591         if (!sparse_buf) {
592                 sparse_buf = SMB_CALLOC_ARRAY(char, SPARSE_BUF_WRITE_SIZE);
593                 if (!sparse_buf) {
594                         errno = ENOMEM;
595                         return ENOMEM;
596                 }
597         }
598
599         while (total < len) {
600                 size_t curr_write_size = MIN(SPARSE_BUF_WRITE_SIZE, (len - total));
601
602                 pwrite_ret = SMB_VFS_PWRITE(fsp, sparse_buf, curr_write_size, offset + total);
603                 if (pwrite_ret == -1) {
604                         DEBUG(10,("vfs_slow_fallocate: SMB_VFS_PWRITE for file "
605                                   "%s failed with error %s\n",
606                                   fsp_str_dbg(fsp), strerror(errno)));
607                         return errno;
608                 }
609                 total += pwrite_ret;
610         }
611
612         return 0;
613 }
614
615 /****************************************************************************
616  A vfs fill sparse call.
617  Writes zeros from the end of file to len, if len is greater than EOF.
618  Used only by strict_sync.
619  Returns 0 on success, -1 on failure.
620 ****************************************************************************/
621
622 int vfs_fill_sparse(files_struct *fsp, SMB_OFF_T len)
623 {
624         int ret;
625         NTSTATUS status;
626         SMB_OFF_T offset;
627         size_t num_to_write;
628
629         status = vfs_stat_fsp(fsp);
630         if (!NT_STATUS_IS_OK(status)) {
631                 return -1;
632         }
633
634         if (len <= fsp->fsp_name->st.st_ex_size) {
635                 return 0;
636         }
637
638 #ifdef S_ISFIFO
639         if (S_ISFIFO(fsp->fsp_name->st.st_ex_mode)) {
640                 return 0;
641         }
642 #endif
643
644         DEBUG(10,("vfs_fill_sparse: write zeros in file %s from len %.0f to "
645                   "len %.0f (%.0f bytes)\n", fsp_str_dbg(fsp),
646                   (double)fsp->fsp_name->st.st_ex_size, (double)len,
647                   (double)(len - fsp->fsp_name->st.st_ex_size)));
648
649         contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_FILL_SPARSE);
650
651         flush_write_cache(fsp, SIZECHANGE_FLUSH);
652
653         offset = fsp->fsp_name->st.st_ex_size;
654         num_to_write = len - fsp->fsp_name->st.st_ex_size;
655
656         /* Only do this on non-stream file handles. */
657         if (fsp->base_fsp == NULL) {
658                 /* for allocation try fallocate first. This can fail on some
659                  * platforms e.g. when the filesystem doesn't support it and no
660                  * emulation is being done by the libc (like on AIX with JFS1). In that
661                  * case we do our own emulation. fallocate implementations can
662                  * return ENOTSUP or EINVAL in cases like that. */
663                 ret = SMB_VFS_FALLOCATE(fsp, VFS_FALLOCATE_EXTEND_SIZE,
664                                 offset, num_to_write);
665                 if (ret == ENOSPC) {
666                         errno = ENOSPC;
667                         ret = -1;
668                         goto out;
669                 }
670                 if (ret == 0) {
671                         goto out;
672                 }
673                 DEBUG(10,("vfs_fill_sparse: SMB_VFS_FALLOCATE failed with "
674                         "error %d. Falling back to slow manual allocation\n", ret));
675         }
676
677         ret = vfs_slow_fallocate(fsp, offset, num_to_write);
678         if (ret != 0) {
679                 errno = ret;
680                 ret = -1;
681         }
682
683  out:
684
685         if (ret == 0) {
686                 set_filelen_write_cache(fsp, len);
687         }
688
689         contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_FILL_SPARSE);
690         return ret;
691 }
692
693 /****************************************************************************
694  Transfer some data (n bytes) between two file_struct's.
695 ****************************************************************************/
696
697 static ssize_t vfs_read_fn(void *file, void *buf, size_t len)
698 {
699         struct files_struct *fsp = (struct files_struct *)file;
700
701         return SMB_VFS_READ(fsp, buf, len);
702 }
703
704 static ssize_t vfs_write_fn(void *file, const void *buf, size_t len)
705 {
706         struct files_struct *fsp = (struct files_struct *)file;
707
708         return SMB_VFS_WRITE(fsp, buf, len);
709 }
710
711 SMB_OFF_T vfs_transfer_file(files_struct *in, files_struct *out, SMB_OFF_T n)
712 {
713         return transfer_file_internal((void *)in, (void *)out, n,
714                                       vfs_read_fn, vfs_write_fn);
715 }
716
717 /*******************************************************************
718  A vfs_readdir wrapper which just returns the file name.
719 ********************************************************************/
720
721 const char *vfs_readdirname(connection_struct *conn, void *p,
722                             SMB_STRUCT_STAT *sbuf, char **talloced)
723 {
724         SMB_STRUCT_DIRENT *ptr= NULL;
725         const char *dname;
726         char *translated;
727         NTSTATUS status;
728
729         if (!p)
730                 return(NULL);
731
732         ptr = SMB_VFS_READDIR(conn, (DIR *)p, sbuf);
733         if (!ptr)
734                 return(NULL);
735
736         dname = ptr->d_name;
737
738
739 #ifdef NEXT2
740         if (telldir(p) < 0)
741                 return(NULL);
742 #endif
743
744 #ifdef HAVE_BROKEN_READDIR_NAME
745         /* using /usr/ucb/cc is BAD */
746         dname = dname - 2;
747 #endif
748
749         status = SMB_VFS_TRANSLATE_NAME(conn, dname, vfs_translate_to_windows,
750                                         talloc_tos(), &translated);
751         if (NT_STATUS_EQUAL(status, NT_STATUS_NONE_MAPPED)) {
752                 *talloced = NULL;
753                 return dname;
754         }
755         *talloced = translated;
756         if (!NT_STATUS_IS_OK(status)) {
757                 return NULL;
758         }
759         return translated;
760 }
761
762 /*******************************************************************
763  A wrapper for vfs_chdir().
764 ********************************************************************/
765
766 int vfs_ChDir(connection_struct *conn, const char *path)
767 {
768         int res;
769
770         if (!LastDir) {
771                 LastDir = SMB_STRDUP("");
772         }
773
774         if (strcsequal(path,"."))
775                 return(0);
776
777         if (*path == '/' && strcsequal(LastDir,path))
778                 return(0);
779
780         DEBUG(4,("vfs_ChDir to %s\n",path));
781
782         res = SMB_VFS_CHDIR(conn,path);
783         if (!res) {
784                 SAFE_FREE(LastDir);
785                 LastDir = SMB_STRDUP(path);
786         }
787         return(res);
788 }
789
790 /*******************************************************************
791  Return the absolute current directory path - given a UNIX pathname.
792  Note that this path is returned in DOS format, not UNIX
793  format. Note this can be called with conn == NULL.
794 ********************************************************************/
795
796 char *vfs_GetWd(TALLOC_CTX *ctx, connection_struct *conn)
797 {
798         char *current_dir = NULL;
799         char *result = NULL;
800         DATA_BLOB cache_value;
801         struct file_id key;
802         struct smb_filename *smb_fname_dot = NULL;
803         struct smb_filename *smb_fname_full = NULL;
804         NTSTATUS status;
805
806         if (!lp_getwd_cache()) {
807                 goto nocache;
808         }
809
810         status = create_synthetic_smb_fname(ctx, ".", NULL, NULL,
811                                             &smb_fname_dot);
812         if (!NT_STATUS_IS_OK(status)) {
813                 errno = map_errno_from_nt_status(status);
814                 goto out;
815         }
816
817         if (SMB_VFS_STAT(conn, smb_fname_dot) == -1) {
818                 /*
819                  * Known to fail for root: the directory may be NFS-mounted
820                  * and exported with root_squash (so has no root access).
821                  */
822                 DEBUG(1,("vfs_GetWd: couldn't stat \".\" error %s "
823                          "(NFS problem ?)\n", strerror(errno) ));
824                 goto nocache;
825         }
826
827         key = vfs_file_id_from_sbuf(conn, &smb_fname_dot->st);
828
829         if (!memcache_lookup(smbd_memcache(), GETWD_CACHE,
830                              data_blob_const(&key, sizeof(key)),
831                              &cache_value)) {
832                 goto nocache;
833         }
834
835         SMB_ASSERT((cache_value.length > 0)
836                    && (cache_value.data[cache_value.length-1] == '\0'));
837
838         status = create_synthetic_smb_fname(ctx, (char *)cache_value.data,
839                                             NULL, NULL, &smb_fname_full);
840         if (!NT_STATUS_IS_OK(status)) {
841                 errno = map_errno_from_nt_status(status);
842                 goto out;
843         }
844
845         if ((SMB_VFS_STAT(conn, smb_fname_full) == 0) &&
846             (smb_fname_dot->st.st_ex_dev == smb_fname_full->st.st_ex_dev) &&
847             (smb_fname_dot->st.st_ex_ino == smb_fname_full->st.st_ex_ino) &&
848             (S_ISDIR(smb_fname_dot->st.st_ex_mode))) {
849                 /*
850                  * Ok, we're done
851                  */
852                 result = talloc_strdup(ctx, smb_fname_full->base_name);
853                 if (result == NULL) {
854                         errno = ENOMEM;
855                 }
856                 goto out;
857         }
858
859  nocache:
860
861         /*
862          * We don't have the information to hand so rely on traditional
863          * methods. The very slow getcwd, which spawns a process on some
864          * systems, or the not quite so bad getwd.
865          */
866
867         current_dir = SMB_VFS_GETWD(conn);
868         if (current_dir == NULL) {
869                 DEBUG(0, ("vfs_GetWd: SMB_VFS_GETWD call failed: %s\n",
870                           strerror(errno)));
871                 goto out;
872         }
873
874         if (lp_getwd_cache() && VALID_STAT(smb_fname_dot->st)) {
875                 key = vfs_file_id_from_sbuf(conn, &smb_fname_dot->st);
876
877                 memcache_add(smbd_memcache(), GETWD_CACHE,
878                              data_blob_const(&key, sizeof(key)),
879                              data_blob_const(current_dir,
880                                                 strlen(current_dir)+1));
881         }
882
883         result = talloc_strdup(ctx, current_dir);
884         if (result == NULL) {
885                 errno = ENOMEM;
886         }
887
888  out:
889         TALLOC_FREE(smb_fname_dot);
890         TALLOC_FREE(smb_fname_full);
891         SAFE_FREE(current_dir);
892         return result;
893 }
894
895 /*******************************************************************
896  Reduce a file name, removing .. elements and checking that
897  it is below dir in the heirachy. This uses realpath.
898 ********************************************************************/
899
900 NTSTATUS check_reduced_name(connection_struct *conn, const char *fname)
901 {
902         char *resolved_name = NULL;
903         bool allow_symlinks = true;
904         bool allow_widelinks = false;
905
906         DEBUG(3,("check_reduced_name [%s] [%s]\n", fname, conn->connectpath));
907
908         resolved_name = SMB_VFS_REALPATH(conn,fname);
909
910         if (!resolved_name) {
911                 switch (errno) {
912                         case ENOTDIR:
913                                 DEBUG(3,("check_reduced_name: Component not a "
914                                          "directory in getting realpath for "
915                                          "%s\n", fname));
916                                 return NT_STATUS_OBJECT_PATH_NOT_FOUND;
917                         case ENOENT:
918                         {
919                                 TALLOC_CTX *ctx = talloc_tos();
920                                 char *dir_name = NULL;
921                                 const char *last_component = NULL;
922                                 char *new_name = NULL;
923
924                                 /* Last component didn't exist.
925                                    Remove it and try and canonicalise
926                                    the directory name. */
927                                 if (!parent_dirname(ctx, fname,
928                                                 &dir_name,
929                                                 &last_component)) {
930                                         return NT_STATUS_NO_MEMORY;
931                                 }
932
933                                 resolved_name = SMB_VFS_REALPATH(conn,dir_name);
934                                 if (!resolved_name) {
935                                         NTSTATUS status = map_nt_error_from_unix(errno);
936
937                                         if (errno == ENOENT || errno == ENOTDIR) {
938                                                 status = NT_STATUS_OBJECT_PATH_NOT_FOUND;
939                                         }
940
941                                         DEBUG(3,("check_reduce_name: "
942                                                  "couldn't get realpath for "
943                                                  "%s (%s)\n",
944                                                 fname,
945                                                 nt_errstr(status)));
946                                         return status;
947                                 }
948                                 new_name = talloc_asprintf(ctx,
949                                                 "%s/%s",
950                                                 resolved_name,
951                                                 last_component);
952                                 if (!new_name) {
953                                         return NT_STATUS_NO_MEMORY;
954                                 }
955                                 SAFE_FREE(resolved_name);
956                                 resolved_name = SMB_STRDUP(new_name);
957                                 if (!resolved_name) {
958                                         return NT_STATUS_NO_MEMORY;
959                                 }
960                                 break;
961                         }
962                         default:
963                                 DEBUG(3,("check_reduced_name: couldn't get "
964                                          "realpath for %s\n", fname));
965                                 return map_nt_error_from_unix(errno);
966                 }
967         }
968
969         DEBUG(10,("check_reduced_name realpath [%s] -> [%s]\n", fname,
970                   resolved_name));
971
972         if (*resolved_name != '/') {
973                 DEBUG(0,("check_reduced_name: realpath doesn't return "
974                          "absolute paths !\n"));
975                 SAFE_FREE(resolved_name);
976                 return NT_STATUS_OBJECT_NAME_INVALID;
977         }
978
979         allow_widelinks = lp_widelinks(SNUM(conn));
980         allow_symlinks = lp_symlinks(SNUM(conn));
981
982         /* Common widelinks and symlinks checks. */
983         if (!allow_widelinks || !allow_symlinks) {
984                 const char *conn_rootdir;
985                 size_t rootdir_len;
986
987                 conn_rootdir = SMB_VFS_CONNECTPATH(conn, fname);
988                 if (conn_rootdir == NULL) {
989                         DEBUG(2, ("check_reduced_name: Could not get "
990                                 "conn_rootdir\n"));
991                         SAFE_FREE(resolved_name);
992                         return NT_STATUS_ACCESS_DENIED;
993                 }
994
995                 rootdir_len = strlen(conn_rootdir);
996                 if (strncmp(conn_rootdir, resolved_name,
997                                 rootdir_len) != 0) {
998                         DEBUG(2, ("check_reduced_name: Bad access "
999                                 "attempt: %s is a symlink outside the "
1000                                 "share path\n", fname));
1001                         DEBUGADD(2, ("conn_rootdir =%s\n", conn_rootdir));
1002                         DEBUGADD(2, ("resolved_name=%s\n", resolved_name));
1003                         SAFE_FREE(resolved_name);
1004                         return NT_STATUS_ACCESS_DENIED;
1005                 }
1006
1007                 /* Extra checks if all symlinks are disallowed. */
1008                 if (!allow_symlinks) {
1009                         /* fname can't have changed in resolved_path. */
1010                         const char *p = &resolved_name[rootdir_len];
1011
1012                         /* *p can be '\0' if fname was "." */
1013                         if (*p == '\0' && ISDOT(fname)) {
1014                                 goto out;
1015                         }
1016
1017                         if (*p != '/') {
1018                                 DEBUG(2, ("check_reduced_name: logic error (%c) "
1019                                         "in resolved_name: %s\n",
1020                                         *p,
1021                                         fname));
1022                                 SAFE_FREE(resolved_name);
1023                                 return NT_STATUS_ACCESS_DENIED;
1024                         }
1025
1026                         p++;
1027                         if (strcmp(fname, p)!=0) {
1028                                 DEBUG(2, ("check_reduced_name: Bad access "
1029                                         "attempt: %s is a symlink\n",
1030                                         fname));
1031                                 SAFE_FREE(resolved_name);
1032                                 return NT_STATUS_ACCESS_DENIED;
1033                         }
1034                 }
1035         }
1036
1037   out:
1038
1039         DEBUG(3,("check_reduced_name: %s reduced to %s\n", fname,
1040                  resolved_name));
1041         SAFE_FREE(resolved_name);
1042         return NT_STATUS_OK;
1043 }
1044
1045 /**
1046  * XXX: This is temporary and there should be no callers of this once
1047  * smb_filename is plumbed through all path based operations.
1048  */
1049 int vfs_stat_smb_fname(struct connection_struct *conn, const char *fname,
1050                        SMB_STRUCT_STAT *psbuf)
1051 {
1052         struct smb_filename *smb_fname = NULL;
1053         NTSTATUS status;
1054         int ret;
1055
1056         status = create_synthetic_smb_fname_split(talloc_tos(), fname, NULL,
1057                                                   &smb_fname);
1058         if (!NT_STATUS_IS_OK(status)) {
1059                 errno = map_errno_from_nt_status(status);
1060                 return -1;
1061         }
1062
1063         if (lp_posix_pathnames()) {
1064                 ret = SMB_VFS_LSTAT(conn, smb_fname);
1065         } else {
1066                 ret = SMB_VFS_STAT(conn, smb_fname);
1067         }
1068
1069         if (ret != -1) {
1070                 *psbuf = smb_fname->st;
1071         }
1072
1073         TALLOC_FREE(smb_fname);
1074         return ret;
1075 }
1076
1077 /**
1078  * XXX: This is temporary and there should be no callers of this once
1079  * smb_filename is plumbed through all path based operations.
1080  */
1081 int vfs_lstat_smb_fname(struct connection_struct *conn, const char *fname,
1082                         SMB_STRUCT_STAT *psbuf)
1083 {
1084         struct smb_filename *smb_fname = NULL;
1085         NTSTATUS status;
1086         int ret;
1087
1088         status = create_synthetic_smb_fname_split(talloc_tos(), fname, NULL,
1089                                                   &smb_fname);
1090         if (!NT_STATUS_IS_OK(status)) {
1091                 errno = map_errno_from_nt_status(status);
1092                 return -1;
1093         }
1094
1095         ret = SMB_VFS_LSTAT(conn, smb_fname);
1096         if (ret != -1) {
1097                 *psbuf = smb_fname->st;
1098         }
1099
1100         TALLOC_FREE(smb_fname);
1101         return ret;
1102 }
1103
1104 /**
1105  * Ensure LSTAT is called for POSIX paths.
1106  */
1107
1108 NTSTATUS vfs_stat_fsp(files_struct *fsp)
1109 {
1110         int ret;
1111
1112         if(fsp->fh->fd == -1) {
1113                 if (fsp->posix_open) {
1114                         ret = SMB_VFS_LSTAT(fsp->conn, fsp->fsp_name);
1115                 } else {
1116                         ret = SMB_VFS_STAT(fsp->conn, fsp->fsp_name);
1117                 }
1118                 if (ret == -1) {
1119                         return map_nt_error_from_unix(errno);
1120                 }
1121         } else {
1122                 if(SMB_VFS_FSTAT(fsp, &fsp->fsp_name->st) != 0) {
1123                         return map_nt_error_from_unix(errno);
1124                 }
1125         }
1126         return NT_STATUS_OK;
1127 }
1128
1129 /*
1130   generate a file_id from a stat structure
1131  */
1132 struct file_id vfs_file_id_from_sbuf(connection_struct *conn, const SMB_STRUCT_STAT *sbuf)
1133 {
1134         return SMB_VFS_FILE_ID_CREATE(conn, sbuf);
1135 }
1136
1137 int smb_vfs_call_connect(struct vfs_handle_struct *handle,
1138                          const char *service, const char *user)
1139 {
1140         VFS_FIND(connect_fn);
1141         return handle->fns->connect_fn(handle, service, user);
1142 }
1143
1144 void smb_vfs_call_disconnect(struct vfs_handle_struct *handle)
1145 {
1146         VFS_FIND(disconnect);
1147         handle->fns->disconnect(handle);
1148 }
1149
1150 uint64_t smb_vfs_call_disk_free(struct vfs_handle_struct *handle,
1151                                 const char *path, bool small_query,
1152                                 uint64_t *bsize, uint64_t *dfree,
1153                                 uint64_t *dsize)
1154 {
1155         VFS_FIND(disk_free);
1156         return handle->fns->disk_free(handle, path, small_query, bsize, dfree,
1157                                       dsize);
1158 }
1159
1160 int smb_vfs_call_get_quota(struct vfs_handle_struct *handle,
1161                            enum SMB_QUOTA_TYPE qtype, unid_t id,
1162                            SMB_DISK_QUOTA *qt)
1163 {
1164         VFS_FIND(get_quota);
1165         return handle->fns->get_quota(handle, qtype, id, qt);
1166 }
1167
1168 int smb_vfs_call_set_quota(struct vfs_handle_struct *handle,
1169                            enum SMB_QUOTA_TYPE qtype, unid_t id,
1170                            SMB_DISK_QUOTA *qt)
1171 {
1172         VFS_FIND(set_quota);
1173         return handle->fns->set_quota(handle, qtype, id, qt);
1174 }
1175
1176 int smb_vfs_call_get_shadow_copy_data(struct vfs_handle_struct *handle,
1177                                       struct files_struct *fsp,
1178                                       struct shadow_copy_data *shadow_copy_data,
1179                                       bool labels)
1180 {
1181         VFS_FIND(get_shadow_copy_data);
1182         return handle->fns->get_shadow_copy_data(handle, fsp, shadow_copy_data,
1183                                                  labels);
1184 }
1185 int smb_vfs_call_statvfs(struct vfs_handle_struct *handle, const char *path,
1186                          struct vfs_statvfs_struct *statbuf)
1187 {
1188         VFS_FIND(statvfs);
1189         return handle->fns->statvfs(handle, path, statbuf);
1190 }
1191
1192 uint32_t smb_vfs_call_fs_capabilities(struct vfs_handle_struct *handle,
1193                         enum timestamp_set_resolution *p_ts_res)
1194 {
1195         VFS_FIND(fs_capabilities);
1196         return handle->fns->fs_capabilities(handle, p_ts_res);
1197 }
1198
1199 SMB_STRUCT_DIR *smb_vfs_call_opendir(struct vfs_handle_struct *handle,
1200                                      const char *fname, const char *mask,
1201                                      uint32 attributes)
1202 {
1203         VFS_FIND(opendir);
1204         return handle->fns->opendir(handle, fname, mask, attributes);
1205 }
1206
1207 SMB_STRUCT_DIR *smb_vfs_call_fdopendir(struct vfs_handle_struct *handle,
1208                                         struct files_struct *fsp,
1209                                         const char *mask,
1210                                         uint32 attributes)
1211 {
1212         VFS_FIND(fdopendir);
1213         return handle->fns->fdopendir(handle, fsp, mask, attributes);
1214 }
1215
1216 SMB_STRUCT_DIRENT *smb_vfs_call_readdir(struct vfs_handle_struct *handle,
1217                                               SMB_STRUCT_DIR *dirp,
1218                                               SMB_STRUCT_STAT *sbuf)
1219 {
1220         VFS_FIND(readdir);
1221         return handle->fns->readdir(handle, dirp, sbuf);
1222 }
1223
1224 void smb_vfs_call_seekdir(struct vfs_handle_struct *handle,
1225                           SMB_STRUCT_DIR *dirp, long offset)
1226 {
1227         VFS_FIND(seekdir);
1228         handle->fns->seekdir(handle, dirp, offset);
1229 }
1230
1231 long smb_vfs_call_telldir(struct vfs_handle_struct *handle,
1232                           SMB_STRUCT_DIR *dirp)
1233 {
1234         VFS_FIND(telldir);
1235         return handle->fns->telldir(handle, dirp);
1236 }
1237
1238 void smb_vfs_call_rewind_dir(struct vfs_handle_struct *handle,
1239                              SMB_STRUCT_DIR *dirp)
1240 {
1241         VFS_FIND(rewind_dir);
1242         handle->fns->rewind_dir(handle, dirp);
1243 }
1244
1245 int smb_vfs_call_mkdir(struct vfs_handle_struct *handle, const char *path,
1246                        mode_t mode)
1247 {
1248         VFS_FIND(mkdir);
1249         return handle->fns->mkdir(handle, path, mode);
1250 }
1251
1252 int smb_vfs_call_rmdir(struct vfs_handle_struct *handle, const char *path)
1253 {
1254         VFS_FIND(rmdir);
1255         return handle->fns->rmdir(handle, path);
1256 }
1257
1258 int smb_vfs_call_closedir(struct vfs_handle_struct *handle,
1259                           SMB_STRUCT_DIR *dir)
1260 {
1261         VFS_FIND(closedir);
1262         return handle->fns->closedir(handle, dir);
1263 }
1264
1265 void smb_vfs_call_init_search_op(struct vfs_handle_struct *handle,
1266                                  SMB_STRUCT_DIR *dirp)
1267 {
1268         VFS_FIND(init_search_op);
1269         handle->fns->init_search_op(handle, dirp);
1270 }
1271
1272 int smb_vfs_call_open(struct vfs_handle_struct *handle,
1273                       struct smb_filename *smb_fname, struct files_struct *fsp,
1274                       int flags, mode_t mode)
1275 {
1276         VFS_FIND(open_fn);
1277         return handle->fns->open_fn(handle, smb_fname, fsp, flags, mode);
1278 }
1279
1280 NTSTATUS smb_vfs_call_create_file(struct vfs_handle_struct *handle,
1281                                   struct smb_request *req,
1282                                   uint16_t root_dir_fid,
1283                                   struct smb_filename *smb_fname,
1284                                   uint32_t access_mask,
1285                                   uint32_t share_access,
1286                                   uint32_t create_disposition,
1287                                   uint32_t create_options,
1288                                   uint32_t file_attributes,
1289                                   uint32_t oplock_request,
1290                                   uint64_t allocation_size,
1291                                   uint32_t private_flags,
1292                                   struct security_descriptor *sd,
1293                                   struct ea_list *ea_list,
1294                                   files_struct **result,
1295                                   int *pinfo)
1296 {
1297         VFS_FIND(create_file);
1298         return handle->fns->create_file(
1299                 handle, req, root_dir_fid, smb_fname, access_mask,
1300                 share_access, create_disposition, create_options,
1301                 file_attributes, oplock_request, allocation_size,
1302                 private_flags, sd, ea_list,
1303                 result, pinfo);
1304 }
1305
1306 int smb_vfs_call_close_fn(struct vfs_handle_struct *handle,
1307                           struct files_struct *fsp)
1308 {
1309         VFS_FIND(close_fn);
1310         return handle->fns->close_fn(handle, fsp);
1311 }
1312
1313 ssize_t smb_vfs_call_vfs_read(struct vfs_handle_struct *handle,
1314                               struct files_struct *fsp, void *data, size_t n)
1315 {
1316         VFS_FIND(vfs_read);
1317         return handle->fns->vfs_read(handle, fsp, data, n);
1318 }
1319
1320 ssize_t smb_vfs_call_pread(struct vfs_handle_struct *handle,
1321                            struct files_struct *fsp, void *data, size_t n,
1322                            SMB_OFF_T offset)
1323 {
1324         VFS_FIND(pread);
1325         return handle->fns->pread(handle, fsp, data, n, offset);
1326 }
1327
1328 ssize_t smb_vfs_call_write(struct vfs_handle_struct *handle,
1329                            struct files_struct *fsp, const void *data,
1330                            size_t n)
1331 {
1332         VFS_FIND(write);
1333         return handle->fns->write(handle, fsp, data, n);
1334 }
1335
1336 ssize_t smb_vfs_call_pwrite(struct vfs_handle_struct *handle,
1337                             struct files_struct *fsp, const void *data,
1338                             size_t n, SMB_OFF_T offset)
1339 {
1340         VFS_FIND(pwrite);
1341         return handle->fns->pwrite(handle, fsp, data, n, offset);
1342 }
1343
1344 SMB_OFF_T smb_vfs_call_lseek(struct vfs_handle_struct *handle,
1345                              struct files_struct *fsp, SMB_OFF_T offset,
1346                              int whence)
1347 {
1348         VFS_FIND(lseek);
1349         return handle->fns->lseek(handle, fsp, offset, whence);
1350 }
1351
1352 ssize_t smb_vfs_call_sendfile(struct vfs_handle_struct *handle, int tofd,
1353                               files_struct *fromfsp, const DATA_BLOB *header,
1354                               SMB_OFF_T offset, size_t count)
1355 {
1356         VFS_FIND(sendfile);
1357         return handle->fns->sendfile(handle, tofd, fromfsp, header, offset,
1358                                      count);
1359 }
1360
1361 ssize_t smb_vfs_call_recvfile(struct vfs_handle_struct *handle, int fromfd,
1362                               files_struct *tofsp, SMB_OFF_T offset,
1363                               size_t count)
1364 {
1365         VFS_FIND(recvfile);
1366         return handle->fns->recvfile(handle, fromfd, tofsp, offset, count);
1367 }
1368
1369 int smb_vfs_call_rename(struct vfs_handle_struct *handle,
1370                         const struct smb_filename *smb_fname_src,
1371                         const struct smb_filename *smb_fname_dst)
1372 {
1373         VFS_FIND(rename);
1374         return handle->fns->rename(handle, smb_fname_src, smb_fname_dst);
1375 }
1376
1377 int smb_vfs_call_fsync(struct vfs_handle_struct *handle,
1378                        struct files_struct *fsp)
1379 {
1380         VFS_FIND(fsync);
1381         return handle->fns->fsync(handle, fsp);
1382 }
1383
1384 int smb_vfs_call_stat(struct vfs_handle_struct *handle,
1385                       struct smb_filename *smb_fname)
1386 {
1387         VFS_FIND(stat);
1388         return handle->fns->stat(handle, smb_fname);
1389 }
1390
1391 int smb_vfs_call_fstat(struct vfs_handle_struct *handle,
1392                        struct files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1393 {
1394         VFS_FIND(fstat);
1395         return handle->fns->fstat(handle, fsp, sbuf);
1396 }
1397
1398 int smb_vfs_call_lstat(struct vfs_handle_struct *handle,
1399                        struct smb_filename *smb_filename)
1400 {
1401         VFS_FIND(lstat);
1402         return handle->fns->lstat(handle, smb_filename);
1403 }
1404
1405 uint64_t smb_vfs_call_get_alloc_size(struct vfs_handle_struct *handle,
1406                                      struct files_struct *fsp,
1407                                      const SMB_STRUCT_STAT *sbuf)
1408 {
1409         VFS_FIND(get_alloc_size);
1410         return handle->fns->get_alloc_size(handle, fsp, sbuf);
1411 }
1412
1413 int smb_vfs_call_unlink(struct vfs_handle_struct *handle,
1414                         const struct smb_filename *smb_fname)
1415 {
1416         VFS_FIND(unlink);
1417         return handle->fns->unlink(handle, smb_fname);
1418 }
1419
1420 int smb_vfs_call_chmod(struct vfs_handle_struct *handle, const char *path,
1421                        mode_t mode)
1422 {
1423         VFS_FIND(chmod);
1424         return handle->fns->chmod(handle, path, mode);
1425 }
1426
1427 int smb_vfs_call_fchmod(struct vfs_handle_struct *handle,
1428                         struct files_struct *fsp, mode_t mode)
1429 {
1430         VFS_FIND(fchmod);
1431         return handle->fns->fchmod(handle, fsp, mode);
1432 }
1433
1434 int smb_vfs_call_chown(struct vfs_handle_struct *handle, const char *path,
1435                        uid_t uid, gid_t gid)
1436 {
1437         VFS_FIND(chown);
1438         return handle->fns->chown(handle, path, uid, gid);
1439 }
1440
1441 int smb_vfs_call_fchown(struct vfs_handle_struct *handle,
1442                         struct files_struct *fsp, uid_t uid, gid_t gid)
1443 {
1444         VFS_FIND(fchown);
1445         return handle->fns->fchown(handle, fsp, uid, gid);
1446 }
1447
1448 int smb_vfs_call_lchown(struct vfs_handle_struct *handle, const char *path,
1449                         uid_t uid, gid_t gid)
1450 {
1451         VFS_FIND(lchown);
1452         return handle->fns->lchown(handle, path, uid, gid);
1453 }
1454
1455 NTSTATUS vfs_chown_fsp(files_struct *fsp, uid_t uid, gid_t gid)
1456 {
1457         int ret;
1458         bool as_root = false;
1459         const char *path;
1460         char *saved_dir = NULL;
1461         char *parent_dir = NULL;
1462         NTSTATUS status;
1463
1464         if (fsp->fh->fd != -1) {
1465                 /* Try fchown. */
1466                 ret = SMB_VFS_FCHOWN(fsp, uid, gid);
1467                 if (ret == 0) {
1468                         return NT_STATUS_OK;
1469                 }
1470                 if (ret == -1 && errno != ENOSYS) {
1471                         return map_nt_error_from_unix(errno);
1472                 }
1473         }
1474
1475         as_root = (geteuid() == 0);
1476
1477         if (as_root) {
1478                 /*
1479                  * We are being asked to chown as root. Make
1480                  * sure we chdir() into the path to pin it,
1481                  * and always act using lchown to ensure we
1482                  * don't deref any symbolic links.
1483                  */
1484                 const char *final_component = NULL;
1485                 struct smb_filename local_fname;
1486
1487                 saved_dir = vfs_GetWd(talloc_tos(),fsp->conn);
1488                 if (!saved_dir) {
1489                         status = map_nt_error_from_unix(errno);
1490                         DEBUG(0,("vfs_chown_fsp: failed to get "
1491                                 "current working directory. Error was %s\n",
1492                                 strerror(errno)));
1493                         return status;
1494                 }
1495
1496                 if (!parent_dirname(talloc_tos(),
1497                                 fsp->fsp_name->base_name,
1498                                 &parent_dir,
1499                                 &final_component)) {
1500                         return NT_STATUS_NO_MEMORY;
1501                 }
1502
1503                 /* cd into the parent dir to pin it. */
1504                 ret = SMB_VFS_CHDIR(fsp->conn, parent_dir);
1505                 if (ret == -1) {
1506                         return map_nt_error_from_unix(errno);
1507                 }
1508
1509                 ZERO_STRUCT(local_fname);
1510                 local_fname.base_name = discard_const_p(char, final_component);
1511
1512                 /* Must use lstat here. */
1513                 ret = SMB_VFS_LSTAT(fsp->conn, &local_fname);
1514                 if (ret == -1) {
1515                         return map_nt_error_from_unix(errno);
1516                 }
1517
1518                 /* Ensure it matches the fsp stat. */
1519                 if (!check_same_stat(&local_fname.st, &fsp->fsp_name->st)) {
1520                         return NT_STATUS_ACCESS_DENIED;
1521                 }
1522                 path = final_component;
1523         } else {
1524                 path = fsp->fsp_name->base_name;
1525         }
1526
1527         if (fsp->posix_open || as_root) {
1528                 ret = SMB_VFS_LCHOWN(fsp->conn,
1529                         path,
1530                         uid, gid);
1531         } else {
1532                 ret = SMB_VFS_CHOWN(fsp->conn,
1533                         path,
1534                         uid, gid);
1535         }
1536
1537         if (ret == 0) {
1538                 status = NT_STATUS_OK;
1539         } else {
1540                 status = map_nt_error_from_unix(errno);
1541         }
1542
1543         if (as_root) {
1544                 vfs_ChDir(fsp->conn,saved_dir);
1545                 TALLOC_FREE(saved_dir);
1546                 TALLOC_FREE(parent_dir);
1547         }
1548         return status;
1549 }
1550
1551 int smb_vfs_call_chdir(struct vfs_handle_struct *handle, const char *path)
1552 {
1553         VFS_FIND(chdir);
1554         return handle->fns->chdir(handle, path);
1555 }
1556
1557 char *smb_vfs_call_getwd(struct vfs_handle_struct *handle)
1558 {
1559         VFS_FIND(getwd);
1560         return handle->fns->getwd(handle);
1561 }
1562
1563 int smb_vfs_call_ntimes(struct vfs_handle_struct *handle,
1564                         const struct smb_filename *smb_fname,
1565                         struct smb_file_time *ft)
1566 {
1567         VFS_FIND(ntimes);
1568         return handle->fns->ntimes(handle, smb_fname, ft);
1569 }
1570
1571 int smb_vfs_call_ftruncate(struct vfs_handle_struct *handle,
1572                            struct files_struct *fsp, SMB_OFF_T offset)
1573 {
1574         VFS_FIND(ftruncate);
1575         return handle->fns->ftruncate(handle, fsp, offset);
1576 }
1577
1578 int smb_vfs_call_fallocate(struct vfs_handle_struct *handle,
1579                                 struct files_struct *fsp,
1580                                 enum vfs_fallocate_mode mode,
1581                                 SMB_OFF_T offset,
1582                                 SMB_OFF_T len)
1583 {
1584         VFS_FIND(fallocate);
1585         return handle->fns->fallocate(handle, fsp, mode, offset, len);
1586 }
1587
1588 int smb_vfs_call_kernel_flock(struct vfs_handle_struct *handle,
1589                               struct files_struct *fsp, uint32 share_mode,
1590                               uint32_t access_mask)
1591 {
1592         VFS_FIND(kernel_flock);
1593         return handle->fns->kernel_flock(handle, fsp, share_mode,
1594                                          access_mask);
1595 }
1596
1597 int smb_vfs_call_linux_setlease(struct vfs_handle_struct *handle,
1598                                 struct files_struct *fsp, int leasetype)
1599 {
1600         VFS_FIND(linux_setlease);
1601         return handle->fns->linux_setlease(handle, fsp, leasetype);
1602 }
1603
1604 int smb_vfs_call_symlink(struct vfs_handle_struct *handle, const char *oldpath,
1605                          const char *newpath)
1606 {
1607         VFS_FIND(symlink);
1608         return handle->fns->symlink(handle, oldpath, newpath);
1609 }
1610
1611 int smb_vfs_call_vfs_readlink(struct vfs_handle_struct *handle,
1612                               const char *path, char *buf, size_t bufsiz)
1613 {
1614         VFS_FIND(vfs_readlink);
1615         return handle->fns->vfs_readlink(handle, path, buf, bufsiz);
1616 }
1617
1618 int smb_vfs_call_link(struct vfs_handle_struct *handle, const char *oldpath,
1619                       const char *newpath)
1620 {
1621         VFS_FIND(link);
1622         return handle->fns->link(handle, oldpath, newpath);
1623 }
1624
1625 int smb_vfs_call_mknod(struct vfs_handle_struct *handle, const char *path,
1626                        mode_t mode, SMB_DEV_T dev)
1627 {
1628         VFS_FIND(mknod);
1629         return handle->fns->mknod(handle, path, mode, dev);
1630 }
1631
1632 char *smb_vfs_call_realpath(struct vfs_handle_struct *handle, const char *path)
1633 {
1634         VFS_FIND(realpath);
1635         return handle->fns->realpath(handle, path);
1636 }
1637
1638 NTSTATUS smb_vfs_call_notify_watch(struct vfs_handle_struct *handle,
1639                                    struct sys_notify_context *ctx,
1640                                    struct notify_entry *e,
1641                                    void (*callback)(struct sys_notify_context *ctx,
1642                                                     void *private_data,
1643                                                     struct notify_event *ev),
1644                                    void *private_data, void *handle_p)
1645 {
1646         VFS_FIND(notify_watch);
1647         return handle->fns->notify_watch(handle, ctx, e, callback,
1648                                          private_data, handle_p);
1649 }
1650
1651 int smb_vfs_call_chflags(struct vfs_handle_struct *handle, const char *path,
1652                          unsigned int flags)
1653 {
1654         VFS_FIND(chflags);
1655         return handle->fns->chflags(handle, path, flags);
1656 }
1657
1658 struct file_id smb_vfs_call_file_id_create(struct vfs_handle_struct *handle,
1659                                            const SMB_STRUCT_STAT *sbuf)
1660 {
1661         VFS_FIND(file_id_create);
1662         return handle->fns->file_id_create(handle, sbuf);
1663 }
1664
1665 NTSTATUS smb_vfs_call_streaminfo(struct vfs_handle_struct *handle,
1666                                  struct files_struct *fsp,
1667                                  const char *fname,
1668                                  TALLOC_CTX *mem_ctx,
1669                                  unsigned int *num_streams,
1670                                  struct stream_struct **streams)
1671 {
1672         VFS_FIND(streaminfo);
1673         return handle->fns->streaminfo(handle, fsp, fname, mem_ctx,
1674                                        num_streams, streams);
1675 }
1676
1677 int smb_vfs_call_get_real_filename(struct vfs_handle_struct *handle,
1678                                    const char *path, const char *name,
1679                                    TALLOC_CTX *mem_ctx, char **found_name)
1680 {
1681         VFS_FIND(get_real_filename);
1682         return handle->fns->get_real_filename(handle, path, name, mem_ctx,
1683                                               found_name);
1684 }
1685
1686 const char *smb_vfs_call_connectpath(struct vfs_handle_struct *handle,
1687                                      const char *filename)
1688 {
1689         VFS_FIND(connectpath);
1690         return handle->fns->connectpath(handle, filename);
1691 }
1692
1693 bool smb_vfs_call_strict_lock(struct vfs_handle_struct *handle,
1694                               struct files_struct *fsp,
1695                               struct lock_struct *plock)
1696 {
1697         VFS_FIND(strict_lock);
1698         return handle->fns->strict_lock(handle, fsp, plock);
1699 }
1700
1701 void smb_vfs_call_strict_unlock(struct vfs_handle_struct *handle,
1702                                 struct files_struct *fsp,
1703                                 struct lock_struct *plock)
1704 {
1705         VFS_FIND(strict_unlock);
1706         handle->fns->strict_unlock(handle, fsp, plock);
1707 }
1708
1709 NTSTATUS smb_vfs_call_translate_name(struct vfs_handle_struct *handle,
1710                                      const char *name,
1711                                      enum vfs_translate_direction direction,
1712                                      TALLOC_CTX *mem_ctx,
1713                                      char **mapped_name)
1714 {
1715         VFS_FIND(translate_name);
1716         return handle->fns->translate_name(handle, name, direction, mem_ctx,
1717                                            mapped_name);
1718 }
1719
1720 NTSTATUS smb_vfs_call_fget_nt_acl(struct vfs_handle_struct *handle,
1721                                   struct files_struct *fsp,
1722                                   uint32 security_info,
1723                                   struct security_descriptor **ppdesc)
1724 {
1725         VFS_FIND(fget_nt_acl);
1726         return handle->fns->fget_nt_acl(handle, fsp, security_info,
1727                                         ppdesc);
1728 }
1729
1730 NTSTATUS smb_vfs_call_get_nt_acl(struct vfs_handle_struct *handle,
1731                                  const char *name,
1732                                  uint32 security_info,
1733                                  struct security_descriptor **ppdesc)
1734 {
1735         VFS_FIND(get_nt_acl);
1736         return handle->fns->get_nt_acl(handle, name, security_info, ppdesc);
1737 }
1738
1739 NTSTATUS smb_vfs_call_fset_nt_acl(struct vfs_handle_struct *handle,
1740                                   struct files_struct *fsp,
1741                                   uint32 security_info_sent,
1742                                   const struct security_descriptor *psd)
1743 {
1744         VFS_FIND(fset_nt_acl);
1745         return handle->fns->fset_nt_acl(handle, fsp, security_info_sent, psd);
1746 }
1747
1748 int smb_vfs_call_chmod_acl(struct vfs_handle_struct *handle, const char *name,
1749                            mode_t mode)
1750 {
1751         VFS_FIND(chmod_acl);
1752         return handle->fns->chmod_acl(handle, name, mode);
1753 }
1754
1755 int smb_vfs_call_fchmod_acl(struct vfs_handle_struct *handle,
1756                             struct files_struct *fsp, mode_t mode)
1757 {
1758         VFS_FIND(fchmod_acl);
1759         return handle->fns->fchmod_acl(handle, fsp, mode);
1760 }
1761
1762 int smb_vfs_call_sys_acl_get_entry(struct vfs_handle_struct *handle,
1763                                    SMB_ACL_T theacl, int entry_id,
1764                                    SMB_ACL_ENTRY_T *entry_p)
1765 {
1766         VFS_FIND(sys_acl_get_entry);
1767         return handle->fns->sys_acl_get_entry(handle, theacl, entry_id,
1768                                               entry_p);
1769 }
1770
1771 int smb_vfs_call_sys_acl_get_tag_type(struct vfs_handle_struct *handle,
1772                                       SMB_ACL_ENTRY_T entry_d,
1773                                       SMB_ACL_TAG_T *tag_type_p)
1774 {
1775         VFS_FIND(sys_acl_get_tag_type);
1776         return handle->fns->sys_acl_get_tag_type(handle, entry_d, tag_type_p);
1777 }
1778
1779 int smb_vfs_call_sys_acl_get_permset(struct vfs_handle_struct *handle,
1780                                      SMB_ACL_ENTRY_T entry_d,
1781                                      SMB_ACL_PERMSET_T *permset_p)
1782 {
1783         VFS_FIND(sys_acl_get_permset);
1784         return handle->fns->sys_acl_get_permset(handle, entry_d, permset_p);
1785 }
1786
1787 void * smb_vfs_call_sys_acl_get_qualifier(struct vfs_handle_struct *handle,
1788                                           SMB_ACL_ENTRY_T entry_d)
1789 {
1790         VFS_FIND(sys_acl_get_qualifier);
1791         return handle->fns->sys_acl_get_qualifier(handle, entry_d);
1792 }
1793
1794 SMB_ACL_T smb_vfs_call_sys_acl_get_file(struct vfs_handle_struct *handle,
1795                                         const char *path_p,
1796                                         SMB_ACL_TYPE_T type)
1797 {
1798         VFS_FIND(sys_acl_get_file);
1799         return handle->fns->sys_acl_get_file(handle, path_p, type);
1800 }
1801
1802 SMB_ACL_T smb_vfs_call_sys_acl_get_fd(struct vfs_handle_struct *handle,
1803                                       struct files_struct *fsp)
1804 {
1805         VFS_FIND(sys_acl_get_fd);
1806         return handle->fns->sys_acl_get_fd(handle, fsp);
1807 }
1808
1809 int smb_vfs_call_sys_acl_clear_perms(struct vfs_handle_struct *handle,
1810                                      SMB_ACL_PERMSET_T permset)
1811 {
1812         VFS_FIND(sys_acl_clear_perms);
1813         return handle->fns->sys_acl_clear_perms(handle, permset);
1814 }
1815
1816 int smb_vfs_call_sys_acl_add_perm(struct vfs_handle_struct *handle,
1817                                   SMB_ACL_PERMSET_T permset,
1818                                   SMB_ACL_PERM_T perm)
1819 {
1820         VFS_FIND(sys_acl_add_perm);
1821         return handle->fns->sys_acl_add_perm(handle, permset, perm);
1822 }
1823
1824 char * smb_vfs_call_sys_acl_to_text(struct vfs_handle_struct *handle,
1825                                     SMB_ACL_T theacl, ssize_t *plen)
1826 {
1827         VFS_FIND(sys_acl_to_text);
1828         return handle->fns->sys_acl_to_text(handle, theacl, plen);
1829 }
1830
1831 SMB_ACL_T smb_vfs_call_sys_acl_init(struct vfs_handle_struct *handle,
1832                                     int count)
1833 {
1834         VFS_FIND(sys_acl_init);
1835         return handle->fns->sys_acl_init(handle, count);
1836 }
1837
1838 int smb_vfs_call_sys_acl_create_entry(struct vfs_handle_struct *handle,
1839                                       SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry)
1840 {
1841         VFS_FIND(sys_acl_create_entry);
1842         return handle->fns->sys_acl_create_entry(handle, pacl, pentry);
1843 }
1844
1845 int smb_vfs_call_sys_acl_set_tag_type(struct vfs_handle_struct *handle,
1846                                       SMB_ACL_ENTRY_T entry,
1847                                       SMB_ACL_TAG_T tagtype)
1848 {
1849         VFS_FIND(sys_acl_set_tag_type);
1850         return handle->fns->sys_acl_set_tag_type(handle, entry, tagtype);
1851 }
1852
1853 int smb_vfs_call_sys_acl_set_qualifier(struct vfs_handle_struct *handle,
1854                                        SMB_ACL_ENTRY_T entry, void *qual)
1855 {
1856         VFS_FIND(sys_acl_set_qualifier);
1857         return handle->fns->sys_acl_set_qualifier(handle, entry, qual);
1858 }
1859
1860 int smb_vfs_call_sys_acl_set_permset(struct vfs_handle_struct *handle,
1861                                      SMB_ACL_ENTRY_T entry,
1862                                      SMB_ACL_PERMSET_T permset)
1863 {
1864         VFS_FIND(sys_acl_set_permset);
1865         return handle->fns->sys_acl_set_permset(handle, entry, permset);
1866 }
1867
1868 int smb_vfs_call_sys_acl_valid(struct vfs_handle_struct *handle,
1869                                SMB_ACL_T theacl)
1870 {
1871         VFS_FIND(sys_acl_valid);
1872         return handle->fns->sys_acl_valid(handle, theacl);
1873 }
1874
1875 int smb_vfs_call_sys_acl_set_file(struct vfs_handle_struct *handle,
1876                                   const char *name, SMB_ACL_TYPE_T acltype,
1877                                   SMB_ACL_T theacl)
1878 {
1879         VFS_FIND(sys_acl_set_file);
1880         return handle->fns->sys_acl_set_file(handle, name, acltype, theacl);
1881 }
1882
1883 int smb_vfs_call_sys_acl_set_fd(struct vfs_handle_struct *handle,
1884                                 struct files_struct *fsp, SMB_ACL_T theacl)
1885 {
1886         VFS_FIND(sys_acl_set_fd);
1887         return handle->fns->sys_acl_set_fd(handle, fsp, theacl);
1888 }
1889
1890 int smb_vfs_call_sys_acl_delete_def_file(struct vfs_handle_struct *handle,
1891                                          const char *path)
1892 {
1893         VFS_FIND(sys_acl_delete_def_file);
1894         return handle->fns->sys_acl_delete_def_file(handle, path);
1895 }
1896
1897 int smb_vfs_call_sys_acl_get_perm(struct vfs_handle_struct *handle,
1898                                   SMB_ACL_PERMSET_T permset,
1899                                   SMB_ACL_PERM_T perm)
1900 {
1901         VFS_FIND(sys_acl_get_perm);
1902         return handle->fns->sys_acl_get_perm(handle, permset, perm);
1903 }
1904
1905 int smb_vfs_call_sys_acl_free_text(struct vfs_handle_struct *handle,
1906                                    char *text)
1907 {
1908         VFS_FIND(sys_acl_free_text);
1909         return handle->fns->sys_acl_free_text(handle, text);
1910 }
1911
1912 int smb_vfs_call_sys_acl_free_acl(struct vfs_handle_struct *handle,
1913                                   SMB_ACL_T posix_acl)
1914 {
1915         VFS_FIND(sys_acl_free_acl);
1916         return handle->fns->sys_acl_free_acl(handle, posix_acl);
1917 }
1918
1919 int smb_vfs_call_sys_acl_free_qualifier(struct vfs_handle_struct *handle,
1920                                         void *qualifier, SMB_ACL_TAG_T tagtype)
1921 {
1922         VFS_FIND(sys_acl_free_qualifier);
1923         return handle->fns->sys_acl_free_qualifier(handle, qualifier, tagtype);
1924 }
1925
1926 ssize_t smb_vfs_call_getxattr(struct vfs_handle_struct *handle,
1927                               const char *path, const char *name, void *value,
1928                               size_t size)
1929 {
1930         VFS_FIND(getxattr);
1931         return handle->fns->getxattr(handle, path, name, value, size);
1932 }
1933
1934 ssize_t smb_vfs_call_lgetxattr(struct vfs_handle_struct *handle,
1935                                const char *path, const char *name, void *value,
1936                                size_t size)
1937 {
1938         VFS_FIND(lgetxattr);
1939         return handle->fns->lgetxattr(handle, path, name, value, size);
1940 }
1941
1942 ssize_t smb_vfs_call_fgetxattr(struct vfs_handle_struct *handle,
1943                                struct files_struct *fsp, const char *name,
1944                                void *value, size_t size)
1945 {
1946         VFS_FIND(fgetxattr);
1947         return handle->fns->fgetxattr(handle, fsp, name, value, size);
1948 }
1949
1950 ssize_t smb_vfs_call_listxattr(struct vfs_handle_struct *handle,
1951                                const char *path, char *list, size_t size)
1952 {
1953         VFS_FIND(listxattr);
1954         return handle->fns->listxattr(handle, path, list, size);
1955 }
1956
1957 ssize_t smb_vfs_call_llistxattr(struct vfs_handle_struct *handle,
1958                                 const char *path, char *list, size_t size)
1959 {
1960         VFS_FIND(llistxattr);
1961         return handle->fns->llistxattr(handle, path, list, size);
1962 }
1963
1964 ssize_t smb_vfs_call_flistxattr(struct vfs_handle_struct *handle,
1965                                 struct files_struct *fsp, char *list,
1966                                 size_t size)
1967 {
1968         VFS_FIND(flistxattr);
1969         return handle->fns->flistxattr(handle, fsp, list, size);
1970 }
1971
1972 int smb_vfs_call_removexattr(struct vfs_handle_struct *handle,
1973                              const char *path, const char *name)
1974 {
1975         VFS_FIND(removexattr);
1976         return handle->fns->removexattr(handle, path, name);
1977 }
1978
1979 int smb_vfs_call_lremovexattr(struct vfs_handle_struct *handle,
1980                               const char *path, const char *name)
1981 {
1982         VFS_FIND(lremovexattr);
1983         return handle->fns->lremovexattr(handle, path, name);
1984 }
1985
1986 int smb_vfs_call_fremovexattr(struct vfs_handle_struct *handle,
1987                               struct files_struct *fsp, const char *name)
1988 {
1989         VFS_FIND(fremovexattr);
1990         return handle->fns->fremovexattr(handle, fsp, name);
1991 }
1992
1993 int smb_vfs_call_setxattr(struct vfs_handle_struct *handle, const char *path,
1994                           const char *name, const void *value, size_t size,
1995                           int flags)
1996 {
1997         VFS_FIND(setxattr);
1998         return handle->fns->setxattr(handle, path, name, value, size, flags);
1999 }
2000
2001 int smb_vfs_call_lsetxattr(struct vfs_handle_struct *handle, const char *path,
2002                            const char *name, const void *value, size_t size,
2003                            int flags)
2004 {
2005         VFS_FIND(lsetxattr);
2006         return handle->fns->lsetxattr(handle, path, name, value, size, flags);
2007 }
2008
2009 int smb_vfs_call_fsetxattr(struct vfs_handle_struct *handle,
2010                            struct files_struct *fsp, const char *name,
2011                            const void *value, size_t size, int flags)
2012 {
2013         VFS_FIND(fsetxattr);
2014         return handle->fns->fsetxattr(handle, fsp, name, value, size, flags);
2015 }
2016
2017 int smb_vfs_call_aio_read(struct vfs_handle_struct *handle,
2018                           struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
2019 {
2020         VFS_FIND(aio_read);
2021         return handle->fns->aio_read(handle, fsp, aiocb);
2022 }
2023
2024 int smb_vfs_call_aio_write(struct vfs_handle_struct *handle,
2025                            struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
2026 {
2027         VFS_FIND(aio_write);
2028         return handle->fns->aio_write(handle, fsp, aiocb);
2029 }
2030
2031 ssize_t smb_vfs_call_aio_return_fn(struct vfs_handle_struct *handle,
2032                                    struct files_struct *fsp,
2033                                    SMB_STRUCT_AIOCB *aiocb)
2034 {
2035         VFS_FIND(aio_return_fn);
2036         return handle->fns->aio_return_fn(handle, fsp, aiocb);
2037 }
2038
2039 int smb_vfs_call_aio_cancel(struct vfs_handle_struct *handle,
2040                             struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
2041 {
2042         VFS_FIND(aio_cancel);
2043         return handle->fns->aio_cancel(handle, fsp, aiocb);
2044 }
2045
2046 int smb_vfs_call_aio_error_fn(struct vfs_handle_struct *handle,
2047                               struct files_struct *fsp,
2048                               SMB_STRUCT_AIOCB *aiocb)
2049 {
2050         VFS_FIND(aio_error_fn);
2051         return handle->fns->aio_error_fn(handle, fsp, aiocb);
2052 }
2053
2054 int smb_vfs_call_aio_fsync(struct vfs_handle_struct *handle,
2055                            struct files_struct *fsp, int op,
2056                            SMB_STRUCT_AIOCB *aiocb)
2057 {
2058         VFS_FIND(aio_fsync);
2059         return handle->fns->aio_fsync(handle, fsp, op, aiocb);
2060 }
2061
2062 int smb_vfs_call_aio_suspend(struct vfs_handle_struct *handle,
2063                              struct files_struct *fsp,
2064                              const SMB_STRUCT_AIOCB * const aiocb[], int n,
2065                              const struct timespec *timeout)
2066 {
2067         VFS_FIND(aio_suspend);
2068         return handle->fns->aio_suspend(handle, fsp, aiocb, n, timeout);
2069 }
2070
2071 bool smb_vfs_call_aio_force(struct vfs_handle_struct *handle,
2072                             struct files_struct *fsp)
2073 {
2074         VFS_FIND(aio_force);
2075         return handle->fns->aio_force(handle, fsp);
2076 }
2077
2078 bool smb_vfs_call_is_offline(struct vfs_handle_struct *handle,
2079                              const struct smb_filename *fname,
2080                              SMB_STRUCT_STAT *sbuf)
2081 {
2082         VFS_FIND(is_offline);
2083         return handle->fns->is_offline(handle, fname, sbuf);
2084 }
2085
2086 int smb_vfs_call_set_offline(struct vfs_handle_struct *handle,
2087                              const struct smb_filename *fname)
2088 {
2089         VFS_FIND(set_offline);
2090         return handle->fns->set_offline(handle, fname);
2091 }