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smbd: Convert vfs_lstat_smb_fname to synthetic_smb_fname
[Samba/bjacke.git] / source3 / smbd / vfs.c
blob856e090ed34a1c6c5fa0e26729b5929f949a38ee
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 #include "lib/util/tevent_unix.h"
34
35 #undef DBGC_CLASS
36 #define DBGC_CLASS DBGC_VFS
37
38 static_decl_vfs;
39
40 struct vfs_fsp_data {
41 struct vfs_fsp_data *next;
42 struct vfs_handle_struct *owner;
43 void (*destroy)(void *p_data);
44 void *_dummy_;
45 /* NOTE: This structure contains four pointers so that we can guarantee
46 * that the end of the structure is always both 4-byte and 8-byte aligned.
47 */
48 };
49
50 struct vfs_init_function_entry {
51 char *name;
52 struct vfs_init_function_entry *prev, *next;
53 const struct vfs_fn_pointers *fns;
54 };
55
56 /****************************************************************************
57 maintain the list of available backends
58 ****************************************************************************/
59
60 static struct vfs_init_function_entry *vfs_find_backend_entry(const char *name)
61 {
62 struct vfs_init_function_entry *entry = backends;
63
64 DEBUG(10, ("vfs_find_backend_entry called for %s\n", name));
65
66 while(entry) {
67 if (strcmp(entry->name, name)==0) return entry;
68 entry = entry->next;
69 }
70
71 return NULL;
72 }
73
74 NTSTATUS smb_register_vfs(int version, const char *name,
75 const struct vfs_fn_pointers *fns)
76 {
77 struct vfs_init_function_entry *entry = backends;
78
79 if ((version != SMB_VFS_INTERFACE_VERSION)) {
80 DEBUG(0, ("Failed to register vfs module.\n"
81 "The module was compiled against SMB_VFS_INTERFACE_VERSION %d,\n"
82 "current SMB_VFS_INTERFACE_VERSION is %d.\n"
83 "Please recompile against the current Samba Version!\n",
84 version, SMB_VFS_INTERFACE_VERSION));
85 return NT_STATUS_OBJECT_TYPE_MISMATCH;
86 }
87
88 if (!name || !name[0]) {
89 DEBUG(0,("smb_register_vfs() called with NULL pointer or empty name!\n"));
90 return NT_STATUS_INVALID_PARAMETER;
91 }
92
93 if (vfs_find_backend_entry(name)) {
94 DEBUG(0,("VFS module %s already loaded!\n", name));
95 return NT_STATUS_OBJECT_NAME_COLLISION;
96 }
97
98 entry = SMB_XMALLOC_P(struct vfs_init_function_entry);
99 entry->name = smb_xstrdup(name);
100 entry->fns = fns;
101
102 DLIST_ADD(backends, entry);
103 DEBUG(5, ("Successfully added vfs backend '%s'\n", name));
104 return NT_STATUS_OK;
105 }
106
107 /****************************************************************************
108 initialise default vfs hooks
109 ****************************************************************************/
110
111 static void vfs_init_default(connection_struct *conn)
112 {
113 DEBUG(3, ("Initialising default vfs hooks\n"));
114 vfs_init_custom(conn, DEFAULT_VFS_MODULE_NAME);
115 }
116
117 /****************************************************************************
118 initialise custom vfs hooks
119 ****************************************************************************/
120
121 bool vfs_init_custom(connection_struct *conn, const char *vfs_object)
122 {
123 char *module_path = NULL;
124 char *module_name = NULL;
125 char *module_param = NULL, *p;
126 vfs_handle_struct *handle;
127 const struct vfs_init_function_entry *entry;
128
129 if (!conn||!vfs_object||!vfs_object[0]) {
130 DEBUG(0, ("vfs_init_custom() called with NULL pointer or "
131 "empty vfs_object!\n"));
132 return False;
133 }
134
135 if(!backends) {
136 static_init_vfs;
137 }
138
139 DEBUG(3, ("Initialising custom vfs hooks from [%s]\n", vfs_object));
140
141 module_path = smb_xstrdup(vfs_object);
142
143 p = strchr_m(module_path, ':');
144
145 if (p) {
146 *p = 0;
147 module_param = p+1;
148 trim_char(module_param, ' ', ' ');
149 }
150
151 trim_char(module_path, ' ', ' ');
152
153 module_name = smb_xstrdup(module_path);
154
155 if ((module_name[0] == '/') &&
156 (strcmp(module_path, DEFAULT_VFS_MODULE_NAME) != 0)) {
157
158 /*
159 * Extract the module name from the path. Just use the base
160 * name of the last path component.
161 */
162
163 SAFE_FREE(module_name);
164 module_name = smb_xstrdup(strrchr_m(module_path, '/')+1);
165
166 p = strchr_m(module_name, '.');
167
168 if (p != NULL) {
169 *p = '\0';
170 }
171 }
172
173 /* First, try to load the module with the new module system */
174 entry = vfs_find_backend_entry(module_name);
175 if (!entry) {
176 NTSTATUS status;
177
178 DEBUG(5, ("vfs module [%s] not loaded - trying to load...\n",
179 vfs_object));
180
181 status = smb_load_module("vfs", module_path);
182 if (!NT_STATUS_IS_OK(status)) {
183 DEBUG(0, ("error probing vfs module '%s': %s\n",
184 module_path, nt_errstr(status)));
185 goto fail;
186 }
187
188 entry = vfs_find_backend_entry(module_name);
189 if (!entry) {
190 DEBUG(0,("Can't find a vfs module [%s]\n",vfs_object));
191 goto fail;
192 }
193 }
194
195 DEBUGADD(5,("Successfully loaded vfs module [%s] with the new modules system\n", vfs_object));
196
197 handle = talloc_zero(conn, vfs_handle_struct);
198 if (!handle) {
199 DEBUG(0,("TALLOC_ZERO() failed!\n"));
200 goto fail;
201 }
202 handle->conn = conn;
203 handle->fns = entry->fns;
204 if (module_param) {
205 handle->param = talloc_strdup(conn, module_param);
206 }
207 DLIST_ADD(conn->vfs_handles, handle);
208
209 SAFE_FREE(module_path);
210 SAFE_FREE(module_name);
211 return True;
212
213 fail:
214 SAFE_FREE(module_path);
215 SAFE_FREE(module_name);
216 return False;
217 }
218
219 /*****************************************************************
220 Allow VFS modules to extend files_struct with VFS-specific state.
221 This will be ok for small numbers of extensions, but might need to
222 be refactored if it becomes more widely used.
223 ******************************************************************/
224
225 #define EXT_DATA_AREA(e) ((uint8 *)(e) + sizeof(struct vfs_fsp_data))
226
227 void *vfs_add_fsp_extension_notype(vfs_handle_struct *handle,
228 files_struct *fsp, size_t ext_size,
229 void (*destroy_fn)(void *p_data))
230 {
231 struct vfs_fsp_data *ext;
232 void * ext_data;
233
234 /* Prevent VFS modules adding multiple extensions. */
235 if ((ext_data = vfs_fetch_fsp_extension(handle, fsp))) {
236 return ext_data;
237 }
238
239 ext = (struct vfs_fsp_data *)TALLOC_ZERO(
240 handle->conn, sizeof(struct vfs_fsp_data) + ext_size);
241 if (ext == NULL) {
242 return NULL;
243 }
244
245 ext->owner = handle;
246 ext->next = fsp->vfs_extension;
247 ext->destroy = destroy_fn;
248 fsp->vfs_extension = ext;
249 return EXT_DATA_AREA(ext);
250 }
251
252 void vfs_remove_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
253 {
254 struct vfs_fsp_data *curr;
255 struct vfs_fsp_data *prev;
256
257 for (curr = fsp->vfs_extension, prev = NULL;
258 curr;
259 prev = curr, curr = curr->next) {
260 if (curr->owner == handle) {
261 if (prev) {
262 prev->next = curr->next;
263 } else {
264 fsp->vfs_extension = curr->next;
265 }
266 if (curr->destroy) {
267 curr->destroy(EXT_DATA_AREA(curr));
268 }
269 TALLOC_FREE(curr);
270 return;
271 }
272 }
273 }
274
275 void vfs_remove_all_fsp_extensions(files_struct *fsp)
276 {
277 struct vfs_fsp_data *curr;
278 struct vfs_fsp_data *next;
279
280 for (curr = fsp->vfs_extension; curr; curr = next) {
281
282 next = curr->next;
283 fsp->vfs_extension = next;
284
285 if (curr->destroy) {
286 curr->destroy(EXT_DATA_AREA(curr));
287 }
288 TALLOC_FREE(curr);
289 }
290 }
291
292 void *vfs_memctx_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
293 {
294 struct vfs_fsp_data *head;
295
296 for (head = fsp->vfs_extension; head; head = head->next) {
297 if (head->owner == handle) {
298 return head;
299 }
300 }
301
302 return NULL;
303 }
304
305 void *vfs_fetch_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
306 {
307 struct vfs_fsp_data *head;
308
309 head = (struct vfs_fsp_data *)vfs_memctx_fsp_extension(handle, fsp);
310 if (head != NULL) {
311 return EXT_DATA_AREA(head);
312 }
313
314 return NULL;
315 }
316
317 #undef EXT_DATA_AREA
318
319 /*****************************************************************
320 Generic VFS init.
321 ******************************************************************/
322
323 bool smbd_vfs_init(connection_struct *conn)
324 {
325 const char **vfs_objects;
326 unsigned int i = 0;
327 int j = 0;
328
329 /* Normal share - initialise with disk access functions */
330 vfs_init_default(conn);
331
332 /* No need to load vfs modules for printer connections */
333 if (conn->printer) {
334 return True;
335 }
336
337 vfs_objects = lp_vfs_objects(SNUM(conn));
338
339 /* Override VFS functions if 'vfs object' was not specified*/
340 if (!vfs_objects || !vfs_objects[0])
341 return True;
342
343 for (i=0; vfs_objects[i] ;) {
344 i++;
345 }
346
347 for (j=i-1; j >= 0; j--) {
348 if (!vfs_init_custom(conn, vfs_objects[j])) {
349 DEBUG(0, ("smbd_vfs_init: vfs_init_custom failed for %s\n", vfs_objects[j]));
350 return False;
351 }
352 }
353 return True;
354 }
355
356 /*******************************************************************
357 Check if a file exists in the vfs.
358 ********************************************************************/
359
360 NTSTATUS vfs_file_exist(connection_struct *conn, struct smb_filename *smb_fname)
361 {
362 /* Only return OK if stat was successful and S_ISREG */
363 if ((SMB_VFS_STAT(conn, smb_fname) != -1) &&
364 S_ISREG(smb_fname->st.st_ex_mode)) {
365 return NT_STATUS_OK;
366 }
367
368 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
369 }
370
371 /****************************************************************************
372 Read data from fsp on the vfs. (note: EINTR re-read differs from vfs_write_data)
373 ****************************************************************************/
374
375 ssize_t vfs_read_data(files_struct *fsp, char *buf, size_t byte_count)
376 {
377 size_t total=0;
378
379 while (total < byte_count)
380 {
381 ssize_t ret = SMB_VFS_READ(fsp, buf + total,
382 byte_count - total);
383
384 if (ret == 0) return total;
385 if (ret == -1) {
386 if (errno == EINTR)
387 continue;
388 else
389 return -1;
390 }
391 total += ret;
392 }
393 return (ssize_t)total;
394 }
395
396 ssize_t vfs_pread_data(files_struct *fsp, char *buf,
397 size_t byte_count, off_t offset)
398 {
399 size_t total=0;
400
401 while (total < byte_count)
402 {
403 ssize_t ret = SMB_VFS_PREAD(fsp, buf + total,
404 byte_count - total, offset + total);
405
406 if (ret == 0) return total;
407 if (ret == -1) {
408 if (errno == EINTR)
409 continue;
410 else
411 return -1;
412 }
413 total += ret;
414 }
415 return (ssize_t)total;
416 }
417
418 /****************************************************************************
419 Write data to a fd on the vfs.
420 ****************************************************************************/
421
422 ssize_t vfs_write_data(struct smb_request *req,
423 files_struct *fsp,
424 const char *buffer,
425 size_t N)
426 {
427 size_t total=0;
428 ssize_t ret;
429
430 if (req && req->unread_bytes) {
431 SMB_ASSERT(req->unread_bytes == N);
432 /* VFS_RECVFILE must drain the socket
433 * before returning. */
434 req->unread_bytes = 0;
435 return SMB_VFS_RECVFILE(req->sconn->sock,
436 fsp,
437 (off_t)-1,
438 N);
439 }
440
441 while (total < N) {
442 ret = SMB_VFS_WRITE(fsp, buffer + total, N - 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 ssize_t vfs_pwrite_data(struct smb_request *req,
455 files_struct *fsp,
456 const char *buffer,
457 size_t N,
458 off_t offset)
459 {
460 size_t total=0;
461 ssize_t ret;
462
463 if (req && req->unread_bytes) {
464 SMB_ASSERT(req->unread_bytes == N);
465 /* VFS_RECVFILE must drain the socket
466 * before returning. */
467 req->unread_bytes = 0;
468 return SMB_VFS_RECVFILE(req->sconn->sock,
469 fsp,
470 offset,
471 N);
472 }
473
474 while (total < N) {
475 ret = SMB_VFS_PWRITE(fsp, buffer + total, N - total,
476 offset + total);
477
478 if (ret == -1)
479 return -1;
480 if (ret == 0)
481 return total;
482
483 total += ret;
484 }
485 return (ssize_t)total;
486 }
487 /****************************************************************************
488 An allocate file space call using the vfs interface.
489 Allocates space for a file from a filedescriptor.
490 Returns 0 on success, -1 on failure.
491 ****************************************************************************/
492
493 int vfs_allocate_file_space(files_struct *fsp, uint64_t len)
494 {
495 int ret;
496 connection_struct *conn = fsp->conn;
497 uint64_t space_avail;
498 uint64_t bsize,dfree,dsize;
499 NTSTATUS status;
500
501 /*
502 * Actually try and commit the space on disk....
503 */
504
505 DEBUG(10,("vfs_allocate_file_space: file %s, len %.0f\n",
506 fsp_str_dbg(fsp), (double)len));
507
508 if (((off_t)len) < 0) {
509 DEBUG(0,("vfs_allocate_file_space: %s negative len "
510 "requested.\n", fsp_str_dbg(fsp)));
511 errno = EINVAL;
512 return -1;
513 }
514
515 status = vfs_stat_fsp(fsp);
516 if (!NT_STATUS_IS_OK(status)) {
517 return -1;
518 }
519
520 if (len == (uint64_t)fsp->fsp_name->st.st_ex_size)
521 return 0;
522
523 if (len < (uint64_t)fsp->fsp_name->st.st_ex_size) {
524 /* Shrink - use ftruncate. */
525
526 DEBUG(10,("vfs_allocate_file_space: file %s, shrink. Current "
527 "size %.0f\n", fsp_str_dbg(fsp),
528 (double)fsp->fsp_name->st.st_ex_size));
529
530 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_ALLOC_SHRINK);
531
532 flush_write_cache(fsp, SIZECHANGE_FLUSH);
533 if ((ret = SMB_VFS_FTRUNCATE(fsp, (off_t)len)) != -1) {
534 set_filelen_write_cache(fsp, len);
535 }
536
537 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_ALLOC_SHRINK);
538
539 return ret;
540 }
541
542 if (!lp_strict_allocate(SNUM(fsp->conn)))
543 return 0;
544
545 /* Grow - we need to test if we have enough space. */
546
547 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_ALLOC_GROW);
548
549 /* See if we have a syscall that will allocate beyond end-of-file
550 without changing EOF. */
551 ret = SMB_VFS_FALLOCATE(fsp, VFS_FALLOCATE_KEEP_SIZE, 0, len);
552
553 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_ALLOC_GROW);
554
555 if (ret == 0) {
556 /* We changed the allocation size on disk, but not
557 EOF - exactly as required. We're done ! */
558 return 0;
559 }
560
561 len -= fsp->fsp_name->st.st_ex_size;
562 len /= 1024; /* Len is now number of 1k blocks needed. */
563 space_avail = get_dfree_info(conn, fsp->fsp_name->base_name, false,
564 &bsize, &dfree, &dsize);
565 if (space_avail == (uint64_t)-1) {
566 return -1;
567 }
568
569 DEBUG(10,("vfs_allocate_file_space: file %s, grow. Current size %.0f, "
570 "needed blocks = %.0f, space avail = %.0f\n",
571 fsp_str_dbg(fsp), (double)fsp->fsp_name->st.st_ex_size, (double)len,
572 (double)space_avail));
573
574 if (len > space_avail) {
575 errno = ENOSPC;
576 return -1;
577 }
578
579 return 0;
580 }
581
582 /****************************************************************************
583 A vfs set_filelen call.
584 set the length of a file from a filedescriptor.
585 Returns 0 on success, -1 on failure.
586 ****************************************************************************/
587
588 int vfs_set_filelen(files_struct *fsp, off_t len)
589 {
590 int ret;
591
592 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_SET_FILE_LEN);
593
594 DEBUG(10,("vfs_set_filelen: ftruncate %s to len %.0f\n",
595 fsp_str_dbg(fsp), (double)len));
596 flush_write_cache(fsp, SIZECHANGE_FLUSH);
597 if ((ret = SMB_VFS_FTRUNCATE(fsp, len)) != -1) {
598 set_filelen_write_cache(fsp, len);
599 notify_fname(fsp->conn, NOTIFY_ACTION_MODIFIED,
600 FILE_NOTIFY_CHANGE_SIZE
601 | FILE_NOTIFY_CHANGE_ATTRIBUTES,
602 fsp->fsp_name->base_name);
603 }
604
605 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_SET_FILE_LEN);
606
607 return ret;
608 }
609
610 /****************************************************************************
611 A slow version of fallocate. Fallback code if SMB_VFS_FALLOCATE
612 fails. Needs to be outside of the default version of SMB_VFS_FALLOCATE
613 as this is also called from the default SMB_VFS_FTRUNCATE code.
614 Always extends the file size.
615 Returns 0 on success, errno on failure.
616 ****************************************************************************/
617
618 #define SPARSE_BUF_WRITE_SIZE (32*1024)
619
620 int vfs_slow_fallocate(files_struct *fsp, off_t offset, off_t len)
621 {
622 ssize_t pwrite_ret;
623 size_t total = 0;
624
625 if (!sparse_buf) {
626 sparse_buf = SMB_CALLOC_ARRAY(char, SPARSE_BUF_WRITE_SIZE);
627 if (!sparse_buf) {
628 errno = ENOMEM;
629 return ENOMEM;
630 }
631 }
632
633 while (total < len) {
634 size_t curr_write_size = MIN(SPARSE_BUF_WRITE_SIZE, (len - total));
635
636 pwrite_ret = SMB_VFS_PWRITE(fsp, sparse_buf, curr_write_size, offset + total);
637 if (pwrite_ret == -1) {
638 DEBUG(10,("vfs_slow_fallocate: SMB_VFS_PWRITE for file "
639 "%s failed with error %s\n",
640 fsp_str_dbg(fsp), strerror(errno)));
641 return errno;
642 }
643 total += pwrite_ret;
644 }
645
646 return 0;
647 }
648
649 /****************************************************************************
650 A vfs fill sparse call.
651 Writes zeros from the end of file to len, if len is greater than EOF.
652 Used only by strict_sync.
653 Returns 0 on success, -1 on failure.
654 ****************************************************************************/
655
656 int vfs_fill_sparse(files_struct *fsp, off_t len)
657 {
658 int ret;
659 NTSTATUS status;
660 off_t offset;
661 size_t num_to_write;
662
663 status = vfs_stat_fsp(fsp);
664 if (!NT_STATUS_IS_OK(status)) {
665 return -1;
666 }
667
668 if (len <= fsp->fsp_name->st.st_ex_size) {
669 return 0;
670 }
671
672 #ifdef S_ISFIFO
673 if (S_ISFIFO(fsp->fsp_name->st.st_ex_mode)) {
674 return 0;
675 }
676 #endif
677
678 DEBUG(10,("vfs_fill_sparse: write zeros in file %s from len %.0f to "
679 "len %.0f (%.0f bytes)\n", fsp_str_dbg(fsp),
680 (double)fsp->fsp_name->st.st_ex_size, (double)len,
681 (double)(len - fsp->fsp_name->st.st_ex_size)));
682
683 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_FILL_SPARSE);
684
685 flush_write_cache(fsp, SIZECHANGE_FLUSH);
686
687 offset = fsp->fsp_name->st.st_ex_size;
688 num_to_write = len - fsp->fsp_name->st.st_ex_size;
689
690 /* Only do this on non-stream file handles. */
691 if (fsp->base_fsp == NULL) {
692 /* for allocation try fallocate first. This can fail on some
693 * platforms e.g. when the filesystem doesn't support it and no
694 * emulation is being done by the libc (like on AIX with JFS1). In that
695 * case we do our own emulation. fallocate implementations can
696 * return ENOTSUP or EINVAL in cases like that. */
697 ret = SMB_VFS_FALLOCATE(fsp, VFS_FALLOCATE_EXTEND_SIZE,
698 offset, num_to_write);
699 if (ret == ENOSPC) {
700 errno = ENOSPC;
701 ret = -1;
702 goto out;
703 }
704 if (ret == 0) {
705 goto out;
706 }
707 DEBUG(10,("vfs_fill_sparse: SMB_VFS_FALLOCATE failed with "
708 "error %d. Falling back to slow manual allocation\n", ret));
709 }
710
711 ret = vfs_slow_fallocate(fsp, offset, num_to_write);
712 if (ret != 0) {
713 errno = ret;
714 ret = -1;
715 }
716
717 out:
718
719 if (ret == 0) {
720 set_filelen_write_cache(fsp, len);
721 }
722
723 contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_FILL_SPARSE);
724 return ret;
725 }
726
727 /****************************************************************************
728 Transfer some data (n bytes) between two file_struct's.
729 ****************************************************************************/
730
731 static ssize_t vfs_read_fn(void *file, void *buf, size_t len)
732 {
733 struct files_struct *fsp = (struct files_struct *)file;
734
735 return SMB_VFS_READ(fsp, buf, len);
736 }
737
738 static ssize_t vfs_write_fn(void *file, const void *buf, size_t len)
739 {
740 struct files_struct *fsp = (struct files_struct *)file;
741
742 return SMB_VFS_WRITE(fsp, buf, len);
743 }
744
745 off_t vfs_transfer_file(files_struct *in, files_struct *out, off_t n)
746 {
747 return transfer_file_internal((void *)in, (void *)out, n,
748 vfs_read_fn, vfs_write_fn);
749 }
750
751 /*******************************************************************
752 A vfs_readdir wrapper which just returns the file name.
753 ********************************************************************/
754
755 const char *vfs_readdirname(connection_struct *conn, void *p,
756 SMB_STRUCT_STAT *sbuf, char **talloced)
757 {
758 struct dirent *ptr= NULL;
759 const char *dname;
760 char *translated;
761 NTSTATUS status;
762
763 if (!p)
764 return(NULL);
765
766 ptr = SMB_VFS_READDIR(conn, (DIR *)p, sbuf);
767 if (!ptr)
768 return(NULL);
769
770 dname = ptr->d_name;
771
772
773 #ifdef NEXT2
774 if (telldir(p) < 0)
775 return(NULL);
776 #endif
777
778 #ifdef HAVE_BROKEN_READDIR_NAME
779 /* using /usr/ucb/cc is BAD */
780 dname = dname - 2;
781 #endif
782
783 status = SMB_VFS_TRANSLATE_NAME(conn, dname, vfs_translate_to_windows,
784 talloc_tos(), &translated);
785 if (NT_STATUS_EQUAL(status, NT_STATUS_NONE_MAPPED)) {
786 *talloced = NULL;
787 return dname;
788 }
789 *talloced = translated;
790 if (!NT_STATUS_IS_OK(status)) {
791 return NULL;
792 }
793 return translated;
794 }
795
796 /*******************************************************************
797 A wrapper for vfs_chdir().
798 ********************************************************************/
799
800 int vfs_ChDir(connection_struct *conn, const char *path)
801 {
802 int ret;
803
804 if (!LastDir) {
805 LastDir = SMB_STRDUP("");
806 }
807
808 if (strcsequal(path,".")) {
809 return 0;
810 }
811
812 if (*path == '/' && strcsequal(LastDir,path)) {
813 return 0;
814 }
815
816 DEBUG(4,("vfs_ChDir to %s\n",path));
817
818 ret = SMB_VFS_CHDIR(conn,path);
819 if (ret == 0) {
820 /* Global cache. */
821 SAFE_FREE(LastDir);
822 LastDir = SMB_STRDUP(path);
823
824 /* conn cache. */
825 TALLOC_FREE(conn->cwd);
826 conn->cwd = vfs_GetWd(conn, conn);
827 DEBUG(4,("vfs_ChDir got %s\n",conn->cwd));
828 }
829 return ret;
830 }
831
832 /*******************************************************************
833 Return the absolute current directory path - given a UNIX pathname.
834 Note that this path is returned in DOS format, not UNIX
835 format. Note this can be called with conn == NULL.
836 ********************************************************************/
837
838 char *vfs_GetWd(TALLOC_CTX *ctx, connection_struct *conn)
839 {
840 char *current_dir = NULL;
841 char *result = NULL;
842 DATA_BLOB cache_value;
843 struct file_id key;
844 struct smb_filename *smb_fname_dot = NULL;
845 struct smb_filename *smb_fname_full = NULL;
846
847 if (!lp_getwd_cache()) {
848 goto nocache;
849 }
850
851 smb_fname_dot = synthetic_smb_fname(ctx, ".", NULL, NULL);
852 if (smb_fname_dot == NULL) {
853 errno = ENOMEM;
854 goto out;
855 }
856
857 if (SMB_VFS_STAT(conn, smb_fname_dot) == -1) {
858 /*
859 * Known to fail for root: the directory may be NFS-mounted
860 * and exported with root_squash (so has no root access).
861 */
862 DEBUG(1,("vfs_GetWd: couldn't stat \".\" error %s "
863 "(NFS problem ?)\n", strerror(errno) ));
864 goto nocache;
865 }
866
867 key = vfs_file_id_from_sbuf(conn, &smb_fname_dot->st);
868
869 if (!memcache_lookup(smbd_memcache(), GETWD_CACHE,
870 data_blob_const(&key, sizeof(key)),
871 &cache_value)) {
872 goto nocache;
873 }
874
875 SMB_ASSERT((cache_value.length > 0)
876 && (cache_value.data[cache_value.length-1] == '\0'));
877
878 smb_fname_full = synthetic_smb_fname(ctx, (char *)cache_value.data,
879 NULL, NULL);
880 if (smb_fname_full == NULL) {
881 errno = ENOMEM;
882 goto out;
883 }
884
885 if ((SMB_VFS_STAT(conn, smb_fname_full) == 0) &&
886 (smb_fname_dot->st.st_ex_dev == smb_fname_full->st.st_ex_dev) &&
887 (smb_fname_dot->st.st_ex_ino == smb_fname_full->st.st_ex_ino) &&
888 (S_ISDIR(smb_fname_dot->st.st_ex_mode))) {
889 /*
890 * Ok, we're done
891 */
892 result = talloc_strdup(ctx, smb_fname_full->base_name);
893 if (result == NULL) {
894 errno = ENOMEM;
895 }
896 goto out;
897 }
898
899 nocache:
900
901 /*
902 * We don't have the information to hand so rely on traditional
903 * methods. The very slow getcwd, which spawns a process on some
904 * systems, or the not quite so bad getwd.
905 */
906
907 current_dir = SMB_VFS_GETWD(conn);
908 if (current_dir == NULL) {
909 DEBUG(0, ("vfs_GetWd: SMB_VFS_GETWD call failed: %s\n",
910 strerror(errno)));
911 goto out;
912 }
913
914 if (lp_getwd_cache() && VALID_STAT(smb_fname_dot->st)) {
915 key = vfs_file_id_from_sbuf(conn, &smb_fname_dot->st);
916
917 memcache_add(smbd_memcache(), GETWD_CACHE,
918 data_blob_const(&key, sizeof(key)),
919 data_blob_const(current_dir,
920 strlen(current_dir)+1));
921 }
922
923 result = talloc_strdup(ctx, current_dir);
924 if (result == NULL) {
925 errno = ENOMEM;
926 }
927
928 out:
929 TALLOC_FREE(smb_fname_dot);
930 TALLOC_FREE(smb_fname_full);
931 SAFE_FREE(current_dir);
932 return result;
933 }
934
935 /*******************************************************************
936 Reduce a file name, removing .. elements and checking that
937 it is below dir in the heirachy. This uses realpath.
938 This function must run as root, and will return names
939 and valid stat structs that can be checked on open.
940 ********************************************************************/
941
942 NTSTATUS check_reduced_name_with_privilege(connection_struct *conn,
943 const char *fname,
944 struct smb_request *smbreq)
945 {
946 NTSTATUS status;
947 TALLOC_CTX *ctx = talloc_tos();
948 const char *conn_rootdir;
949 size_t rootdir_len;
950 char *dir_name = NULL;
951 const char *last_component = NULL;
952 char *resolved_name = NULL;
953 char *saved_dir = NULL;
954 struct smb_filename *smb_fname_cwd = NULL;
955 struct privilege_paths *priv_paths = NULL;
956 int ret;
957
958 DEBUG(3,("check_reduced_name_with_privilege [%s] [%s]\n",
959 fname,
960 conn->connectpath));
961
962
963 priv_paths = talloc_zero(smbreq, struct privilege_paths);
964 if (!priv_paths) {
965 status = NT_STATUS_NO_MEMORY;
966 goto err;
967 }
968
969 if (!parent_dirname(ctx, fname, &dir_name, &last_component)) {
970 status = NT_STATUS_NO_MEMORY;
971 goto err;
972 }
973
974 priv_paths->parent_name.base_name = talloc_strdup(priv_paths, dir_name);
975 priv_paths->file_name.base_name = talloc_strdup(priv_paths, last_component);
976
977 if (priv_paths->parent_name.base_name == NULL ||
978 priv_paths->file_name.base_name == NULL) {
979 status = NT_STATUS_NO_MEMORY;
980 goto err;
981 }
982
983 if (SMB_VFS_STAT(conn, &priv_paths->parent_name) != 0) {
984 status = map_nt_error_from_unix(errno);
985 goto err;
986 }
987 /* Remember where we were. */
988 saved_dir = vfs_GetWd(ctx, conn);
989 if (!saved_dir) {
990 status = map_nt_error_from_unix(errno);
991 goto err;
992 }
993
994 /* Go to the parent directory to lock in memory. */
995 if (vfs_ChDir(conn, priv_paths->parent_name.base_name) == -1) {
996 status = map_nt_error_from_unix(errno);
997 goto err;
998 }
999
1000 /* Get the absolute path of the parent directory. */
1001 resolved_name = SMB_VFS_REALPATH(conn,".");
1002 if (!resolved_name) {
1003 status = map_nt_error_from_unix(errno);
1004 goto err;
1005 }
1006
1007 if (*resolved_name != '/') {
1008 DEBUG(0,("check_reduced_name_with_privilege: realpath "
1009 "doesn't return absolute paths !\n"));
1010 status = NT_STATUS_OBJECT_NAME_INVALID;
1011 goto err;
1012 }
1013
1014 DEBUG(10,("check_reduced_name_with_privilege: realpath [%s] -> [%s]\n",
1015 priv_paths->parent_name.base_name,
1016 resolved_name));
1017
1018 /* Now check the stat value is the same. */
1019 smb_fname_cwd = synthetic_smb_fname(talloc_tos(), ".", NULL, NULL);
1020 if (smb_fname_cwd == NULL) {
1021 status = NT_STATUS_NO_MEMORY;
1022 goto err;
1023 }
1024
1025 if (SMB_VFS_LSTAT(conn, smb_fname_cwd) != 0) {
1026 status = map_nt_error_from_unix(errno);
1027 goto err;
1028 }
1029
1030 /* Ensure we're pointing at the same place. */
1031 if (!check_same_stat(&smb_fname_cwd->st, &priv_paths->parent_name.st)) {
1032 DEBUG(0,("check_reduced_name_with_privilege: "
1033 "device/inode/uid/gid on directory %s changed. "
1034 "Denying access !\n",
1035 priv_paths->parent_name.base_name));
1036 status = NT_STATUS_ACCESS_DENIED;
1037 goto err;
1038 }
1039
1040 /* Ensure we're below the connect path. */
1041
1042 conn_rootdir = SMB_VFS_CONNECTPATH(conn, fname);
1043 if (conn_rootdir == NULL) {
1044 DEBUG(2, ("check_reduced_name_with_privilege: Could not get "
1045 "conn_rootdir\n"));
1046 status = NT_STATUS_ACCESS_DENIED;
1047 goto err;
1048 }
1049
1050 rootdir_len = strlen(conn_rootdir);
1051 if (strncmp(conn_rootdir, resolved_name, rootdir_len) != 0) {
1052 DEBUG(2, ("check_reduced_name_with_privilege: Bad access "
1053 "attempt: %s is a symlink outside the "
1054 "share path\n",
1055 dir_name));
1056 DEBUGADD(2, ("conn_rootdir =%s\n", conn_rootdir));
1057 DEBUGADD(2, ("resolved_name=%s\n", resolved_name));
1058 status = NT_STATUS_ACCESS_DENIED;
1059 goto err;
1060 }
1061
1062 /* Now ensure that the last component either doesn't
1063 exist, or is *NOT* a symlink. */
1064
1065 ret = SMB_VFS_LSTAT(conn, &priv_paths->file_name);
1066 if (ret == -1) {
1067 /* Errno must be ENOENT for this be ok. */
1068 if (errno != ENOENT) {
1069 status = map_nt_error_from_unix(errno);
1070 DEBUG(2, ("check_reduced_name_with_privilege: "
1071 "LSTAT on %s failed with %s\n",
1072 priv_paths->file_name.base_name,
1073 nt_errstr(status)));
1074 goto err;
1075 }
1076 }
1077
1078 if (VALID_STAT(priv_paths->file_name.st) &&
1079 S_ISLNK(priv_paths->file_name.st.st_ex_mode)) {
1080 DEBUG(2, ("check_reduced_name_with_privilege: "
1081 "Last component %s is a symlink. Denying"
1082 "access.\n",
1083 priv_paths->file_name.base_name));
1084 status = NT_STATUS_ACCESS_DENIED;
1085 goto err;
1086 }
1087
1088 smbreq->priv_paths = priv_paths;
1089 status = NT_STATUS_OK;
1090
1091 err:
1092
1093 if (saved_dir) {
1094 vfs_ChDir(conn, saved_dir);
1095 }
1096 SAFE_FREE(resolved_name);
1097 if (!NT_STATUS_IS_OK(status)) {
1098 TALLOC_FREE(priv_paths);
1099 }
1100 TALLOC_FREE(dir_name);
1101 return status;
1102 }
1103
1104 /*******************************************************************
1105 Reduce a file name, removing .. elements and checking that
1106 it is below dir in the heirachy. This uses realpath.
1107 ********************************************************************/
1108
1109 NTSTATUS check_reduced_name(connection_struct *conn, const char *fname)
1110 {
1111 char *resolved_name = NULL;
1112 bool allow_symlinks = true;
1113 bool allow_widelinks = false;
1114
1115 DEBUG(3,("check_reduced_name [%s] [%s]\n", fname, conn->connectpath));
1116
1117 resolved_name = SMB_VFS_REALPATH(conn,fname);
1118
1119 if (!resolved_name) {
1120 switch (errno) {
1121 case ENOTDIR:
1122 DEBUG(3,("check_reduced_name: Component not a "
1123 "directory in getting realpath for "
1124 "%s\n", fname));
1125 return NT_STATUS_OBJECT_PATH_NOT_FOUND;
1126 case ENOENT:
1127 {
1128 TALLOC_CTX *ctx = talloc_tos();
1129 char *dir_name = NULL;
1130 const char *last_component = NULL;
1131 char *new_name = NULL;
1132 int ret;
1133
1134 /* Last component didn't exist.
1135 Remove it and try and canonicalise
1136 the directory name. */
1137 if (!parent_dirname(ctx, fname,
1138 &dir_name,
1139 &last_component)) {
1140 return NT_STATUS_NO_MEMORY;
1141 }
1142
1143 resolved_name = SMB_VFS_REALPATH(conn,dir_name);
1144 if (!resolved_name) {
1145 NTSTATUS status = map_nt_error_from_unix(errno);
1146
1147 if (errno == ENOENT || errno == ENOTDIR) {
1148 status = NT_STATUS_OBJECT_PATH_NOT_FOUND;
1149 }
1150
1151 DEBUG(3,("check_reduce_name: "
1152 "couldn't get realpath for "
1153 "%s (%s)\n",
1154 fname,
1155 nt_errstr(status)));
1156 return status;
1157 }
1158 ret = asprintf(&new_name, "%s/%s",
1159 resolved_name, last_component);
1160 SAFE_FREE(resolved_name);
1161 if (ret == -1) {
1162 return NT_STATUS_NO_MEMORY;
1163 }
1164 resolved_name = new_name;
1165 break;
1166 }
1167 default:
1168 DEBUG(3,("check_reduced_name: couldn't get "
1169 "realpath for %s\n", fname));
1170 return map_nt_error_from_unix(errno);
1171 }
1172 }
1173
1174 DEBUG(10,("check_reduced_name realpath [%s] -> [%s]\n", fname,
1175 resolved_name));
1176
1177 if (*resolved_name != '/') {
1178 DEBUG(0,("check_reduced_name: realpath doesn't return "
1179 "absolute paths !\n"));
1180 SAFE_FREE(resolved_name);
1181 return NT_STATUS_OBJECT_NAME_INVALID;
1182 }
1183
1184 allow_widelinks = lp_widelinks(SNUM(conn));
1185 allow_symlinks = lp_symlinks(SNUM(conn));
1186
1187 /* Common widelinks and symlinks checks. */
1188 if (!allow_widelinks || !allow_symlinks) {
1189 const char *conn_rootdir;
1190 size_t rootdir_len;
1191
1192 conn_rootdir = SMB_VFS_CONNECTPATH(conn, fname);
1193 if (conn_rootdir == NULL) {
1194 DEBUG(2, ("check_reduced_name: Could not get "
1195 "conn_rootdir\n"));
1196 SAFE_FREE(resolved_name);
1197 return NT_STATUS_ACCESS_DENIED;
1198 }
1199
1200 rootdir_len = strlen(conn_rootdir);
1201 if (strncmp(conn_rootdir, resolved_name,
1202 rootdir_len) != 0) {
1203 DEBUG(2, ("check_reduced_name: Bad access "
1204 "attempt: %s is a symlink outside the "
1205 "share path\n", fname));
1206 DEBUGADD(2, ("conn_rootdir =%s\n", conn_rootdir));
1207 DEBUGADD(2, ("resolved_name=%s\n", resolved_name));
1208 SAFE_FREE(resolved_name);
1209 return NT_STATUS_ACCESS_DENIED;
1210 }
1211
1212 /* Extra checks if all symlinks are disallowed. */
1213 if (!allow_symlinks) {
1214 /* fname can't have changed in resolved_path. */
1215 const char *p = &resolved_name[rootdir_len];
1216
1217 /* *p can be '\0' if fname was "." */
1218 if (*p == '\0' && ISDOT(fname)) {
1219 goto out;
1220 }
1221
1222 if (*p != '/') {
1223 DEBUG(2, ("check_reduced_name: logic error (%c) "
1224 "in resolved_name: %s\n",
1225 *p,
1226 fname));
1227 SAFE_FREE(resolved_name);
1228 return NT_STATUS_ACCESS_DENIED;
1229 }
1230
1231 p++;
1232 if (strcmp(fname, p)!=0) {
1233 DEBUG(2, ("check_reduced_name: Bad access "
1234 "attempt: %s is a symlink to %s\n",
1235 fname, p));
1236 SAFE_FREE(resolved_name);
1237 return NT_STATUS_ACCESS_DENIED;
1238 }
1239 }
1240 }
1241
1242 out:
1243
1244 DEBUG(3,("check_reduced_name: %s reduced to %s\n", fname,
1245 resolved_name));
1246 SAFE_FREE(resolved_name);
1247 return NT_STATUS_OK;
1248 }
1249
1250 /**
1251 * XXX: This is temporary and there should be no callers of this once
1252 * smb_filename is plumbed through all path based operations.
1253 */
1254 int vfs_stat_smb_fname(struct connection_struct *conn, const char *fname,
1255 SMB_STRUCT_STAT *psbuf)
1256 {
1257 struct smb_filename *smb_fname;
1258 int ret;
1259
1260 smb_fname = synthetic_smb_fname_split(talloc_tos(), fname, NULL);
1261 if (smb_fname == NULL) {
1262 errno = ENOMEM;
1263 return -1;
1264 }
1265
1266 if (lp_posix_pathnames()) {
1267 ret = SMB_VFS_LSTAT(conn, smb_fname);
1268 } else {
1269 ret = SMB_VFS_STAT(conn, smb_fname);
1270 }
1271
1272 if (ret != -1) {
1273 *psbuf = smb_fname->st;
1274 }
1275
1276 TALLOC_FREE(smb_fname);
1277 return ret;
1278 }
1279
1280 /**
1281 * XXX: This is temporary and there should be no callers of this once
1282 * smb_filename is plumbed through all path based operations.
1283 */
1284 int vfs_lstat_smb_fname(struct connection_struct *conn, const char *fname,
1285 SMB_STRUCT_STAT *psbuf)
1286 {
1287 struct smb_filename *smb_fname;
1288 int ret;
1289
1290 smb_fname = synthetic_smb_fname_split(talloc_tos(), fname, NULL);
1291 if (smb_fname == NULL) {
1292 errno = ENOMEM;
1293 return -1;
1294 }
1295
1296 ret = SMB_VFS_LSTAT(conn, smb_fname);
1297 if (ret != -1) {
1298 *psbuf = smb_fname->st;
1299 }
1300
1301 TALLOC_FREE(smb_fname);
1302 return ret;
1303 }
1304
1305 /**
1306 * Ensure LSTAT is called for POSIX paths.
1307 */
1308
1309 NTSTATUS vfs_stat_fsp(files_struct *fsp)
1310 {
1311 int ret;
1312
1313 if(fsp->fh->fd == -1) {
1314 if (fsp->posix_open) {
1315 ret = SMB_VFS_LSTAT(fsp->conn, fsp->fsp_name);
1316 } else {
1317 ret = SMB_VFS_STAT(fsp->conn, fsp->fsp_name);
1318 }
1319 if (ret == -1) {
1320 return map_nt_error_from_unix(errno);
1321 }
1322 } else {
1323 if(SMB_VFS_FSTAT(fsp, &fsp->fsp_name->st) != 0) {
1324 return map_nt_error_from_unix(errno);
1325 }
1326 }
1327 return NT_STATUS_OK;
1328 }
1329
1330 /**
1331 * Initialize num_streams and streams, then call VFS op streaminfo
1332 */
1333 NTSTATUS vfs_streaminfo(connection_struct *conn,
1334 struct files_struct *fsp,
1335 const char *fname,
1336 TALLOC_CTX *mem_ctx,
1337 unsigned int *num_streams,
1338 struct stream_struct **streams)
1339 {
1340 *num_streams = 0;
1341 *streams = NULL;
1342 return SMB_VFS_STREAMINFO(conn, fsp, fname, mem_ctx, num_streams, streams);
1343 }
1344
1345 /*
1346 generate a file_id from a stat structure
1347 */
1348 struct file_id vfs_file_id_from_sbuf(connection_struct *conn, const SMB_STRUCT_STAT *sbuf)
1349 {
1350 return SMB_VFS_FILE_ID_CREATE(conn, sbuf);
1351 }
1352
1353 int smb_vfs_call_connect(struct vfs_handle_struct *handle,
1354 const char *service, const char *user)
1355 {
1356 VFS_FIND(connect);
1357 return handle->fns->connect_fn(handle, service, user);
1358 }
1359
1360 void smb_vfs_call_disconnect(struct vfs_handle_struct *handle)
1361 {
1362 VFS_FIND(disconnect);
1363 handle->fns->disconnect_fn(handle);
1364 }
1365
1366 uint64_t smb_vfs_call_disk_free(struct vfs_handle_struct *handle,
1367 const char *path, bool small_query,
1368 uint64_t *bsize, uint64_t *dfree,
1369 uint64_t *dsize)
1370 {
1371 VFS_FIND(disk_free);
1372 return handle->fns->disk_free_fn(handle, path, small_query, bsize,
1373 dfree, dsize);
1374 }
1375
1376 int smb_vfs_call_get_quota(struct vfs_handle_struct *handle,
1377 enum SMB_QUOTA_TYPE qtype, unid_t id,
1378 SMB_DISK_QUOTA *qt)
1379 {
1380 VFS_FIND(get_quota);
1381 return handle->fns->get_quota_fn(handle, qtype, id, qt);
1382 }
1383
1384 int smb_vfs_call_set_quota(struct vfs_handle_struct *handle,
1385 enum SMB_QUOTA_TYPE qtype, unid_t id,
1386 SMB_DISK_QUOTA *qt)
1387 {
1388 VFS_FIND(set_quota);
1389 return handle->fns->set_quota_fn(handle, qtype, id, qt);
1390 }
1391
1392 int smb_vfs_call_get_shadow_copy_data(struct vfs_handle_struct *handle,
1393 struct files_struct *fsp,
1394 struct shadow_copy_data *shadow_copy_data,
1395 bool labels)
1396 {
1397 VFS_FIND(get_shadow_copy_data);
1398 return handle->fns->get_shadow_copy_data_fn(handle, fsp,
1399 shadow_copy_data,
1400 labels);
1401 }
1402 int smb_vfs_call_statvfs(struct vfs_handle_struct *handle, const char *path,
1403 struct vfs_statvfs_struct *statbuf)
1404 {
1405 VFS_FIND(statvfs);
1406 return handle->fns->statvfs_fn(handle, path, statbuf);
1407 }
1408
1409 uint32_t smb_vfs_call_fs_capabilities(struct vfs_handle_struct *handle,
1410 enum timestamp_set_resolution *p_ts_res)
1411 {
1412 VFS_FIND(fs_capabilities);
1413 return handle->fns->fs_capabilities_fn(handle, p_ts_res);
1414 }
1415
1416 NTSTATUS smb_vfs_call_get_dfs_referrals(struct vfs_handle_struct *handle,
1417 struct dfs_GetDFSReferral *r)
1418 {
1419 VFS_FIND(get_dfs_referrals);
1420 return handle->fns->get_dfs_referrals_fn(handle, r);
1421 }
1422
1423 DIR *smb_vfs_call_opendir(struct vfs_handle_struct *handle,
1424 const char *fname, const char *mask,
1425 uint32 attributes)
1426 {
1427 VFS_FIND(opendir);
1428 return handle->fns->opendir_fn(handle, fname, mask, attributes);
1429 }
1430
1431 DIR *smb_vfs_call_fdopendir(struct vfs_handle_struct *handle,
1432 struct files_struct *fsp,
1433 const char *mask,
1434 uint32 attributes)
1435 {
1436 VFS_FIND(fdopendir);
1437 return handle->fns->fdopendir_fn(handle, fsp, mask, attributes);
1438 }
1439
1440 struct dirent *smb_vfs_call_readdir(struct vfs_handle_struct *handle,
1441 DIR *dirp,
1442 SMB_STRUCT_STAT *sbuf)
1443 {
1444 VFS_FIND(readdir);
1445 return handle->fns->readdir_fn(handle, dirp, sbuf);
1446 }
1447
1448 void smb_vfs_call_seekdir(struct vfs_handle_struct *handle,
1449 DIR *dirp, long offset)
1450 {
1451 VFS_FIND(seekdir);
1452 handle->fns->seekdir_fn(handle, dirp, offset);
1453 }
1454
1455 long smb_vfs_call_telldir(struct vfs_handle_struct *handle,
1456 DIR *dirp)
1457 {
1458 VFS_FIND(telldir);
1459 return handle->fns->telldir_fn(handle, dirp);
1460 }
1461
1462 void smb_vfs_call_rewind_dir(struct vfs_handle_struct *handle,
1463 DIR *dirp)
1464 {
1465 VFS_FIND(rewind_dir);
1466 handle->fns->rewind_dir_fn(handle, dirp);
1467 }
1468
1469 int smb_vfs_call_mkdir(struct vfs_handle_struct *handle, const char *path,
1470 mode_t mode)
1471 {
1472 VFS_FIND(mkdir);
1473 return handle->fns->mkdir_fn(handle, path, mode);
1474 }
1475
1476 int smb_vfs_call_rmdir(struct vfs_handle_struct *handle, const char *path)
1477 {
1478 VFS_FIND(rmdir);
1479 return handle->fns->rmdir_fn(handle, path);
1480 }
1481
1482 int smb_vfs_call_closedir(struct vfs_handle_struct *handle,
1483 DIR *dir)
1484 {
1485 VFS_FIND(closedir);
1486 return handle->fns->closedir_fn(handle, dir);
1487 }
1488
1489 void smb_vfs_call_init_search_op(struct vfs_handle_struct *handle,
1490 DIR *dirp)
1491 {
1492 VFS_FIND(init_search_op);
1493 handle->fns->init_search_op_fn(handle, dirp);
1494 }
1495
1496 int smb_vfs_call_open(struct vfs_handle_struct *handle,
1497 struct smb_filename *smb_fname, struct files_struct *fsp,
1498 int flags, mode_t mode)
1499 {
1500 VFS_FIND(open);
1501 return handle->fns->open_fn(handle, smb_fname, fsp, flags, mode);
1502 }
1503
1504 NTSTATUS smb_vfs_call_create_file(struct vfs_handle_struct *handle,
1505 struct smb_request *req,
1506 uint16_t root_dir_fid,
1507 struct smb_filename *smb_fname,
1508 uint32_t access_mask,
1509 uint32_t share_access,
1510 uint32_t create_disposition,
1511 uint32_t create_options,
1512 uint32_t file_attributes,
1513 uint32_t oplock_request,
1514 uint64_t allocation_size,
1515 uint32_t private_flags,
1516 struct security_descriptor *sd,
1517 struct ea_list *ea_list,
1518 files_struct **result,
1519 int *pinfo)
1520 {
1521 VFS_FIND(create_file);
1522 return handle->fns->create_file_fn(
1523 handle, req, root_dir_fid, smb_fname, access_mask,
1524 share_access, create_disposition, create_options,
1525 file_attributes, oplock_request, allocation_size,
1526 private_flags, sd, ea_list,
1527 result, pinfo);
1528 }
1529
1530 int smb_vfs_call_close(struct vfs_handle_struct *handle,
1531 struct files_struct *fsp)
1532 {
1533 VFS_FIND(close);
1534 return handle->fns->close_fn(handle, fsp);
1535 }
1536
1537 ssize_t smb_vfs_call_read(struct vfs_handle_struct *handle,
1538 struct files_struct *fsp, void *data, size_t n)
1539 {
1540 VFS_FIND(read);
1541 return handle->fns->read_fn(handle, fsp, data, n);
1542 }
1543
1544 ssize_t smb_vfs_call_pread(struct vfs_handle_struct *handle,
1545 struct files_struct *fsp, void *data, size_t n,
1546 off_t offset)
1547 {
1548 VFS_FIND(pread);
1549 return handle->fns->pread_fn(handle, fsp, data, n, offset);
1550 }
1551
1552 struct smb_vfs_call_pread_state {
1553 ssize_t (*recv_fn)(struct tevent_req *req, int *err);
1554 ssize_t retval;
1555 };
1556
1557 static void smb_vfs_call_pread_done(struct tevent_req *subreq);
1558
1559 struct tevent_req *smb_vfs_call_pread_send(struct vfs_handle_struct *handle,
1560 TALLOC_CTX *mem_ctx,
1561 struct tevent_context *ev,
1562 struct files_struct *fsp,
1563 void *data,
1564 size_t n, off_t offset)
1565 {
1566 struct tevent_req *req, *subreq;
1567 struct smb_vfs_call_pread_state *state;
1568
1569 req = tevent_req_create(mem_ctx, &state,
1570 struct smb_vfs_call_pread_state);
1571 if (req == NULL) {
1572 return NULL;
1573 }
1574 VFS_FIND(pread_send);
1575 state->recv_fn = handle->fns->pread_recv_fn;
1576
1577 subreq = handle->fns->pread_send_fn(handle, state, ev, fsp, data, n,
1578 offset);
1579 if (tevent_req_nomem(subreq, req)) {
1580 return tevent_req_post(req, ev);
1581 }
1582 tevent_req_set_callback(subreq, smb_vfs_call_pread_done, req);
1583 return req;
1584 }
1585
1586 static void smb_vfs_call_pread_done(struct tevent_req *subreq)
1587 {
1588 struct tevent_req *req = tevent_req_callback_data(
1589 subreq, struct tevent_req);
1590 struct smb_vfs_call_pread_state *state = tevent_req_data(
1591 req, struct smb_vfs_call_pread_state);
1592 int err;
1593
1594 state->retval = state->recv_fn(subreq, &err);
1595 TALLOC_FREE(subreq);
1596 if (state->retval == -1) {
1597 tevent_req_error(req, err);
1598 return;
1599 }
1600 tevent_req_done(req);
1601 }
1602
1603 ssize_t SMB_VFS_PREAD_RECV(struct tevent_req *req, int *perrno)
1604 {
1605 struct smb_vfs_call_pread_state *state = tevent_req_data(
1606 req, struct smb_vfs_call_pread_state);
1607 int err;
1608
1609 if (tevent_req_is_unix_error(req, &err)) {
1610 *perrno = err;
1611 return -1;
1612 }
1613 return state->retval;
1614 }
1615
1616 ssize_t smb_vfs_call_write(struct vfs_handle_struct *handle,
1617 struct files_struct *fsp, const void *data,
1618 size_t n)
1619 {
1620 VFS_FIND(write);
1621 return handle->fns->write_fn(handle, fsp, data, n);
1622 }
1623
1624 ssize_t smb_vfs_call_pwrite(struct vfs_handle_struct *handle,
1625 struct files_struct *fsp, const void *data,
1626 size_t n, off_t offset)
1627 {
1628 VFS_FIND(pwrite);
1629 return handle->fns->pwrite_fn(handle, fsp, data, n, offset);
1630 }
1631
1632 struct smb_vfs_call_pwrite_state {
1633 ssize_t (*recv_fn)(struct tevent_req *req, int *err);
1634 ssize_t retval;
1635 };
1636
1637 static void smb_vfs_call_pwrite_done(struct tevent_req *subreq);
1638
1639 struct tevent_req *smb_vfs_call_pwrite_send(struct vfs_handle_struct *handle,
1640 TALLOC_CTX *mem_ctx,
1641 struct tevent_context *ev,
1642 struct files_struct *fsp,
1643 const void *data,
1644 size_t n, off_t offset)
1645 {
1646 struct tevent_req *req, *subreq;
1647 struct smb_vfs_call_pwrite_state *state;
1648
1649 req = tevent_req_create(mem_ctx, &state,
1650 struct smb_vfs_call_pwrite_state);
1651 if (req == NULL) {
1652 return NULL;
1653 }
1654 VFS_FIND(pwrite_send);
1655 state->recv_fn = handle->fns->pwrite_recv_fn;
1656
1657 subreq = handle->fns->pwrite_send_fn(handle, state, ev, fsp, data, n,
1658 offset);
1659 if (tevent_req_nomem(subreq, req)) {
1660 return tevent_req_post(req, ev);
1661 }
1662 tevent_req_set_callback(subreq, smb_vfs_call_pwrite_done, req);
1663 return req;
1664 }
1665
1666 static void smb_vfs_call_pwrite_done(struct tevent_req *subreq)
1667 {
1668 struct tevent_req *req = tevent_req_callback_data(
1669 subreq, struct tevent_req);
1670 struct smb_vfs_call_pwrite_state *state = tevent_req_data(
1671 req, struct smb_vfs_call_pwrite_state);
1672 int err;
1673
1674 state->retval = state->recv_fn(subreq, &err);
1675 TALLOC_FREE(subreq);
1676 if (state->retval == -1) {
1677 tevent_req_error(req, err);
1678 return;
1679 }
1680 tevent_req_done(req);
1681 }
1682
1683 ssize_t SMB_VFS_PWRITE_RECV(struct tevent_req *req, int *perrno)
1684 {
1685 struct smb_vfs_call_pwrite_state *state = tevent_req_data(
1686 req, struct smb_vfs_call_pwrite_state);
1687 int err;
1688
1689 if (tevent_req_is_unix_error(req, &err)) {
1690 *perrno = err;
1691 return -1;
1692 }
1693 return state->retval;
1694 }
1695
1696 off_t smb_vfs_call_lseek(struct vfs_handle_struct *handle,
1697 struct files_struct *fsp, off_t offset,
1698 int whence)
1699 {
1700 VFS_FIND(lseek);
1701 return handle->fns->lseek_fn(handle, fsp, offset, whence);
1702 }
1703
1704 ssize_t smb_vfs_call_sendfile(struct vfs_handle_struct *handle, int tofd,
1705 files_struct *fromfsp, const DATA_BLOB *header,
1706 off_t offset, size_t count)
1707 {
1708 VFS_FIND(sendfile);
1709 return handle->fns->sendfile_fn(handle, tofd, fromfsp, header, offset,
1710 count);
1711 }
1712
1713 ssize_t smb_vfs_call_recvfile(struct vfs_handle_struct *handle, int fromfd,
1714 files_struct *tofsp, off_t offset,
1715 size_t count)
1716 {
1717 VFS_FIND(recvfile);
1718 return handle->fns->recvfile_fn(handle, fromfd, tofsp, offset, count);
1719 }
1720
1721 int smb_vfs_call_rename(struct vfs_handle_struct *handle,
1722 const struct smb_filename *smb_fname_src,
1723 const struct smb_filename *smb_fname_dst)
1724 {
1725 VFS_FIND(rename);
1726 return handle->fns->rename_fn(handle, smb_fname_src, smb_fname_dst);
1727 }
1728
1729 int smb_vfs_call_fsync(struct vfs_handle_struct *handle,
1730 struct files_struct *fsp)
1731 {
1732 VFS_FIND(fsync);
1733 return handle->fns->fsync_fn(handle, fsp);
1734 }
1735
1736 struct smb_vfs_call_fsync_state {
1737 int (*recv_fn)(struct tevent_req *req, int *err);
1738 int retval;
1739 };
1740
1741 static void smb_vfs_call_fsync_done(struct tevent_req *subreq);
1742
1743 struct tevent_req *smb_vfs_call_fsync_send(struct vfs_handle_struct *handle,
1744 TALLOC_CTX *mem_ctx,
1745 struct tevent_context *ev,
1746 struct files_struct *fsp)
1747 {
1748 struct tevent_req *req, *subreq;
1749 struct smb_vfs_call_fsync_state *state;
1750
1751 req = tevent_req_create(mem_ctx, &state,
1752 struct smb_vfs_call_fsync_state);
1753 if (req == NULL) {
1754 return NULL;
1755 }
1756 VFS_FIND(fsync_send);
1757 state->recv_fn = handle->fns->fsync_recv_fn;
1758
1759 subreq = handle->fns->fsync_send_fn(handle, state, ev, fsp);
1760 if (tevent_req_nomem(subreq, req)) {
1761 return tevent_req_post(req, ev);
1762 }
1763 tevent_req_set_callback(subreq, smb_vfs_call_fsync_done, req);
1764 return req;
1765 }
1766
1767 static void smb_vfs_call_fsync_done(struct tevent_req *subreq)
1768 {
1769 struct tevent_req *req = tevent_req_callback_data(
1770 subreq, struct tevent_req);
1771 struct smb_vfs_call_fsync_state *state = tevent_req_data(
1772 req, struct smb_vfs_call_fsync_state);
1773 int err;
1774
1775 state->retval = state->recv_fn(subreq, &err);
1776 TALLOC_FREE(subreq);
1777 if (state->retval == -1) {
1778 tevent_req_error(req, err);
1779 return;
1780 }
1781 tevent_req_done(req);
1782 }
1783
1784 int SMB_VFS_FSYNC_RECV(struct tevent_req *req, int *perrno)
1785 {
1786 struct smb_vfs_call_fsync_state *state = tevent_req_data(
1787 req, struct smb_vfs_call_fsync_state);
1788 int err;
1789
1790 if (tevent_req_is_unix_error(req, &err)) {
1791 *perrno = err;
1792 return -1;
1793 }
1794 return state->retval;
1795 }
1796
1797
1798 int smb_vfs_call_stat(struct vfs_handle_struct *handle,
1799 struct smb_filename *smb_fname)
1800 {
1801 VFS_FIND(stat);
1802 return handle->fns->stat_fn(handle, smb_fname);
1803 }
1804
1805 int smb_vfs_call_fstat(struct vfs_handle_struct *handle,
1806 struct files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1807 {
1808 VFS_FIND(fstat);
1809 return handle->fns->fstat_fn(handle, fsp, sbuf);
1810 }
1811
1812 int smb_vfs_call_lstat(struct vfs_handle_struct *handle,
1813 struct smb_filename *smb_filename)
1814 {
1815 VFS_FIND(lstat);
1816 return handle->fns->lstat_fn(handle, smb_filename);
1817 }
1818
1819 uint64_t smb_vfs_call_get_alloc_size(struct vfs_handle_struct *handle,
1820 struct files_struct *fsp,
1821 const SMB_STRUCT_STAT *sbuf)
1822 {
1823 VFS_FIND(get_alloc_size);
1824 return handle->fns->get_alloc_size_fn(handle, fsp, sbuf);
1825 }
1826
1827 int smb_vfs_call_unlink(struct vfs_handle_struct *handle,
1828 const struct smb_filename *smb_fname)
1829 {
1830 VFS_FIND(unlink);
1831 return handle->fns->unlink_fn(handle, smb_fname);
1832 }
1833
1834 int smb_vfs_call_chmod(struct vfs_handle_struct *handle, const char *path,
1835 mode_t mode)
1836 {
1837 VFS_FIND(chmod);
1838 return handle->fns->chmod_fn(handle, path, mode);
1839 }
1840
1841 int smb_vfs_call_fchmod(struct vfs_handle_struct *handle,
1842 struct files_struct *fsp, mode_t mode)
1843 {
1844 VFS_FIND(fchmod);
1845 return handle->fns->fchmod_fn(handle, fsp, mode);
1846 }
1847
1848 int smb_vfs_call_chown(struct vfs_handle_struct *handle, const char *path,
1849 uid_t uid, gid_t gid)
1850 {
1851 VFS_FIND(chown);
1852 return handle->fns->chown_fn(handle, path, uid, gid);
1853 }
1854
1855 int smb_vfs_call_fchown(struct vfs_handle_struct *handle,
1856 struct files_struct *fsp, uid_t uid, gid_t gid)
1857 {
1858 VFS_FIND(fchown);
1859 return handle->fns->fchown_fn(handle, fsp, uid, gid);
1860 }
1861
1862 int smb_vfs_call_lchown(struct vfs_handle_struct *handle, const char *path,
1863 uid_t uid, gid_t gid)
1864 {
1865 VFS_FIND(lchown);
1866 return handle->fns->lchown_fn(handle, path, uid, gid);
1867 }
1868
1869 NTSTATUS vfs_chown_fsp(files_struct *fsp, uid_t uid, gid_t gid)
1870 {
1871 int ret;
1872 bool as_root = false;
1873 const char *path;
1874 char *saved_dir = NULL;
1875 char *parent_dir = NULL;
1876 NTSTATUS status;
1877
1878 if (fsp->fh->fd != -1) {
1879 /* Try fchown. */
1880 ret = SMB_VFS_FCHOWN(fsp, uid, gid);
1881 if (ret == 0) {
1882 return NT_STATUS_OK;
1883 }
1884 if (ret == -1 && errno != ENOSYS) {
1885 return map_nt_error_from_unix(errno);
1886 }
1887 }
1888
1889 as_root = (geteuid() == 0);
1890
1891 if (as_root) {
1892 /*
1893 * We are being asked to chown as root. Make
1894 * sure we chdir() into the path to pin it,
1895 * and always act using lchown to ensure we
1896 * don't deref any symbolic links.
1897 */
1898 const char *final_component = NULL;
1899 struct smb_filename local_fname;
1900
1901 saved_dir = vfs_GetWd(talloc_tos(),fsp->conn);
1902 if (!saved_dir) {
1903 status = map_nt_error_from_unix(errno);
1904 DEBUG(0,("vfs_chown_fsp: failed to get "
1905 "current working directory. Error was %s\n",
1906 strerror(errno)));
1907 return status;
1908 }
1909
1910 if (!parent_dirname(talloc_tos(),
1911 fsp->fsp_name->base_name,
1912 &parent_dir,
1913 &final_component)) {
1914 return NT_STATUS_NO_MEMORY;
1915 }
1916
1917 /* cd into the parent dir to pin it. */
1918 ret = vfs_ChDir(fsp->conn, parent_dir);
1919 if (ret == -1) {
1920 return map_nt_error_from_unix(errno);
1921 }
1922
1923 ZERO_STRUCT(local_fname);
1924 local_fname.base_name = discard_const_p(char, final_component);
1925
1926 /* Must use lstat here. */
1927 ret = SMB_VFS_LSTAT(fsp->conn, &local_fname);
1928 if (ret == -1) {
1929 status = map_nt_error_from_unix(errno);
1930 goto out;
1931 }
1932
1933 /* Ensure it matches the fsp stat. */
1934 if (!check_same_stat(&local_fname.st, &fsp->fsp_name->st)) {
1935 status = NT_STATUS_ACCESS_DENIED;
1936 goto out;
1937 }
1938 path = final_component;
1939 } else {
1940 path = fsp->fsp_name->base_name;
1941 }
1942
1943 if (fsp->posix_open || as_root) {
1944 ret = SMB_VFS_LCHOWN(fsp->conn,
1945 path,
1946 uid, gid);
1947 } else {
1948 ret = SMB_VFS_CHOWN(fsp->conn,
1949 path,
1950 uid, gid);
1951 }
1952
1953 if (ret == 0) {
1954 status = NT_STATUS_OK;
1955 } else {
1956 status = map_nt_error_from_unix(errno);
1957 }
1958
1959 out:
1960
1961 if (as_root) {
1962 vfs_ChDir(fsp->conn,saved_dir);
1963 TALLOC_FREE(saved_dir);
1964 TALLOC_FREE(parent_dir);
1965 }
1966 return status;
1967 }
1968
1969 int smb_vfs_call_chdir(struct vfs_handle_struct *handle, const char *path)
1970 {
1971 VFS_FIND(chdir);
1972 return handle->fns->chdir_fn(handle, path);
1973 }
1974
1975 char *smb_vfs_call_getwd(struct vfs_handle_struct *handle)
1976 {
1977 VFS_FIND(getwd);
1978 return handle->fns->getwd_fn(handle);
1979 }
1980
1981 int smb_vfs_call_ntimes(struct vfs_handle_struct *handle,
1982 const struct smb_filename *smb_fname,
1983 struct smb_file_time *ft)
1984 {
1985 VFS_FIND(ntimes);
1986 return handle->fns->ntimes_fn(handle, smb_fname, ft);
1987 }
1988
1989 int smb_vfs_call_ftruncate(struct vfs_handle_struct *handle,
1990 struct files_struct *fsp, off_t offset)
1991 {
1992 VFS_FIND(ftruncate);
1993 return handle->fns->ftruncate_fn(handle, fsp, offset);
1994 }
1995
1996 int smb_vfs_call_fallocate(struct vfs_handle_struct *handle,
1997 struct files_struct *fsp,
1998 enum vfs_fallocate_mode mode,
1999 off_t offset,
2000 off_t len)
2001 {
2002 VFS_FIND(fallocate);
2003 return handle->fns->fallocate_fn(handle, fsp, mode, offset, len);
2004 }
2005
2006 int smb_vfs_call_kernel_flock(struct vfs_handle_struct *handle,
2007 struct files_struct *fsp, uint32 share_mode,
2008 uint32_t access_mask)
2009 {
2010 VFS_FIND(kernel_flock);
2011 return handle->fns->kernel_flock_fn(handle, fsp, share_mode,
2012 access_mask);
2013 }
2014
2015 int smb_vfs_call_linux_setlease(struct vfs_handle_struct *handle,
2016 struct files_struct *fsp, int leasetype)
2017 {
2018 VFS_FIND(linux_setlease);
2019 return handle->fns->linux_setlease_fn(handle, fsp, leasetype);
2020 }
2021
2022 int smb_vfs_call_symlink(struct vfs_handle_struct *handle, const char *oldpath,
2023 const char *newpath)
2024 {
2025 VFS_FIND(symlink);
2026 return handle->fns->symlink_fn(handle, oldpath, newpath);
2027 }
2028
2029 int smb_vfs_call_readlink(struct vfs_handle_struct *handle,
2030 const char *path, char *buf, size_t bufsiz)
2031 {
2032 VFS_FIND(readlink);
2033 return handle->fns->readlink_fn(handle, path, buf, bufsiz);
2034 }
2035
2036 int smb_vfs_call_link(struct vfs_handle_struct *handle, const char *oldpath,
2037 const char *newpath)
2038 {
2039 VFS_FIND(link);
2040 return handle->fns->link_fn(handle, oldpath, newpath);
2041 }
2042
2043 int smb_vfs_call_mknod(struct vfs_handle_struct *handle, const char *path,
2044 mode_t mode, SMB_DEV_T dev)
2045 {
2046 VFS_FIND(mknod);
2047 return handle->fns->mknod_fn(handle, path, mode, dev);
2048 }
2049
2050 char *smb_vfs_call_realpath(struct vfs_handle_struct *handle, const char *path)
2051 {
2052 VFS_FIND(realpath);
2053 return handle->fns->realpath_fn(handle, path);
2054 }
2055
2056 NTSTATUS smb_vfs_call_notify_watch(struct vfs_handle_struct *handle,
2057 struct sys_notify_context *ctx,
2058 const char *path,
2059 uint32_t *filter,
2060 uint32_t *subdir_filter,
2061 void (*callback)(struct sys_notify_context *ctx,
2062 void *private_data,
2063 struct notify_event *ev),
2064 void *private_data, void *handle_p)
2065 {
2066 VFS_FIND(notify_watch);
2067 return handle->fns->notify_watch_fn(handle, ctx, path,
2068 filter, subdir_filter, callback,
2069 private_data, handle_p);
2070 }
2071
2072 int smb_vfs_call_chflags(struct vfs_handle_struct *handle, const char *path,
2073 unsigned int flags)
2074 {
2075 VFS_FIND(chflags);
2076 return handle->fns->chflags_fn(handle, path, flags);
2077 }
2078
2079 struct file_id smb_vfs_call_file_id_create(struct vfs_handle_struct *handle,
2080 const SMB_STRUCT_STAT *sbuf)
2081 {
2082 VFS_FIND(file_id_create);
2083 return handle->fns->file_id_create_fn(handle, sbuf);
2084 }
2085
2086 NTSTATUS smb_vfs_call_streaminfo(struct vfs_handle_struct *handle,
2087 struct files_struct *fsp,
2088 const char *fname,
2089 TALLOC_CTX *mem_ctx,
2090 unsigned int *num_streams,
2091 struct stream_struct **streams)
2092 {
2093 VFS_FIND(streaminfo);
2094 return handle->fns->streaminfo_fn(handle, fsp, fname, mem_ctx,
2095 num_streams, streams);
2096 }
2097
2098 int smb_vfs_call_get_real_filename(struct vfs_handle_struct *handle,
2099 const char *path, const char *name,
2100 TALLOC_CTX *mem_ctx, char **found_name)
2101 {
2102 VFS_FIND(get_real_filename);
2103 return handle->fns->get_real_filename_fn(handle, path, name, mem_ctx,
2104 found_name);
2105 }
2106
2107 const char *smb_vfs_call_connectpath(struct vfs_handle_struct *handle,
2108 const char *filename)
2109 {
2110 VFS_FIND(connectpath);
2111 return handle->fns->connectpath_fn(handle, filename);
2112 }
2113
2114 bool smb_vfs_call_strict_lock(struct vfs_handle_struct *handle,
2115 struct files_struct *fsp,
2116 struct lock_struct *plock)
2117 {
2118 VFS_FIND(strict_lock);
2119 return handle->fns->strict_lock_fn(handle, fsp, plock);
2120 }
2121
2122 void smb_vfs_call_strict_unlock(struct vfs_handle_struct *handle,
2123 struct files_struct *fsp,
2124 struct lock_struct *plock)
2125 {
2126 VFS_FIND(strict_unlock);
2127 handle->fns->strict_unlock_fn(handle, fsp, plock);
2128 }
2129
2130 NTSTATUS smb_vfs_call_translate_name(struct vfs_handle_struct *handle,
2131 const char *name,
2132 enum vfs_translate_direction direction,
2133 TALLOC_CTX *mem_ctx,
2134 char **mapped_name)
2135 {
2136 VFS_FIND(translate_name);
2137 return handle->fns->translate_name_fn(handle, name, direction, mem_ctx,
2138 mapped_name);
2139 }
2140
2141 NTSTATUS smb_vfs_call_fsctl(struct vfs_handle_struct *handle,
2142 struct files_struct *fsp,
2143 TALLOC_CTX *ctx,
2144 uint32_t function,
2145 uint16_t req_flags,
2146 const uint8_t *in_data,
2147 uint32_t in_len,
2148 uint8_t **out_data,
2149 uint32_t max_out_len,
2150 uint32_t *out_len)
2151 {
2152 VFS_FIND(fsctl);
2153 return handle->fns->fsctl_fn(handle, fsp, ctx, function, req_flags,
2154 in_data, in_len, out_data, max_out_len,
2155 out_len);
2156 }
2157
2158 struct tevent_req *smb_vfs_call_copy_chunk_send(struct vfs_handle_struct *handle,
2159 TALLOC_CTX *mem_ctx,
2160 struct tevent_context *ev,
2161 struct files_struct *src_fsp,
2162 off_t src_off,
2163 struct files_struct *dest_fsp,
2164 off_t dest_off,
2165 off_t num)
2166 {
2167 VFS_FIND(copy_chunk_send);
2168 return handle->fns->copy_chunk_send_fn(handle, mem_ctx, ev, src_fsp,
2169 src_off, dest_fsp, dest_off, num);
2170 }
2171
2172 NTSTATUS smb_vfs_call_copy_chunk_recv(struct vfs_handle_struct *handle,
2173 struct tevent_req *req,
2174 off_t *copied)
2175 {
2176 VFS_FIND(copy_chunk_recv);
2177 return handle->fns->copy_chunk_recv_fn(handle, req, copied);
2178 }
2179
2180 NTSTATUS smb_vfs_call_fget_nt_acl(struct vfs_handle_struct *handle,
2181 struct files_struct *fsp,
2182 uint32 security_info,
2183 TALLOC_CTX *mem_ctx,
2184 struct security_descriptor **ppdesc)
2185 {
2186 VFS_FIND(fget_nt_acl);
2187 return handle->fns->fget_nt_acl_fn(handle, fsp, security_info,
2188 mem_ctx, ppdesc);
2189 }
2190
2191 NTSTATUS smb_vfs_call_get_nt_acl(struct vfs_handle_struct *handle,
2192 const char *name,
2193 uint32 security_info,
2194 TALLOC_CTX *mem_ctx,
2195 struct security_descriptor **ppdesc)
2196 {
2197 VFS_FIND(get_nt_acl);
2198 return handle->fns->get_nt_acl_fn(handle, name, security_info, mem_ctx, ppdesc);
2199 }
2200
2201 NTSTATUS smb_vfs_call_fset_nt_acl(struct vfs_handle_struct *handle,
2202 struct files_struct *fsp,
2203 uint32 security_info_sent,
2204 const struct security_descriptor *psd)
2205 {
2206 VFS_FIND(fset_nt_acl);
2207 return handle->fns->fset_nt_acl_fn(handle, fsp, security_info_sent,
2208 psd);
2209 }
2210
2211 NTSTATUS smb_vfs_call_audit_file(struct vfs_handle_struct *handle,
2212 struct smb_filename *file,
2213 struct security_acl *sacl,
2214 uint32_t access_requested,
2215 uint32_t access_denied)
2216 {
2217 VFS_FIND(audit_file);
2218 return handle->fns->audit_file_fn(handle,
2219 file,
2220 sacl,
2221 access_requested,
2222 access_denied);
2223 }
2224
2225 int smb_vfs_call_chmod_acl(struct vfs_handle_struct *handle, const char *name,
2226 mode_t mode)
2227 {
2228 VFS_FIND(chmod_acl);
2229 return handle->fns->chmod_acl_fn(handle, name, mode);
2230 }
2231
2232 int smb_vfs_call_fchmod_acl(struct vfs_handle_struct *handle,
2233 struct files_struct *fsp, mode_t mode)
2234 {
2235 VFS_FIND(fchmod_acl);
2236 return handle->fns->fchmod_acl_fn(handle, fsp, mode);
2237 }
2238
2239 SMB_ACL_T smb_vfs_call_sys_acl_get_file(struct vfs_handle_struct *handle,
2240 const char *path_p,
2241 SMB_ACL_TYPE_T type,
2242 TALLOC_CTX *mem_ctx)
2243 {
2244 VFS_FIND(sys_acl_get_file);
2245 return handle->fns->sys_acl_get_file_fn(handle, path_p, type, mem_ctx);
2246 }
2247
2248 SMB_ACL_T smb_vfs_call_sys_acl_get_fd(struct vfs_handle_struct *handle,
2249 struct files_struct *fsp,
2250 TALLOC_CTX *mem_ctx)
2251 {
2252 VFS_FIND(sys_acl_get_fd);
2253 return handle->fns->sys_acl_get_fd_fn(handle, fsp, mem_ctx);
2254 }
2255
2256 int smb_vfs_call_sys_acl_blob_get_file(struct vfs_handle_struct *handle,
2257 const char *path_p,
2258 TALLOC_CTX *mem_ctx,
2259 char **blob_description,
2260 DATA_BLOB *blob)
2261 {
2262 VFS_FIND(sys_acl_blob_get_file);
2263 return handle->fns->sys_acl_blob_get_file_fn(handle, path_p, mem_ctx, blob_description, blob);
2264 }
2265
2266 int smb_vfs_call_sys_acl_blob_get_fd(struct vfs_handle_struct *handle,
2267 struct files_struct *fsp,
2268 TALLOC_CTX *mem_ctx,
2269 char **blob_description,
2270 DATA_BLOB *blob)
2271 {
2272 VFS_FIND(sys_acl_blob_get_fd);
2273 return handle->fns->sys_acl_blob_get_fd_fn(handle, fsp, mem_ctx, blob_description, blob);
2274 }
2275
2276 int smb_vfs_call_sys_acl_set_file(struct vfs_handle_struct *handle,
2277 const char *name, SMB_ACL_TYPE_T acltype,
2278 SMB_ACL_T theacl)
2279 {
2280 VFS_FIND(sys_acl_set_file);
2281 return handle->fns->sys_acl_set_file_fn(handle, name, acltype, theacl);
2282 }
2283
2284 int smb_vfs_call_sys_acl_set_fd(struct vfs_handle_struct *handle,
2285 struct files_struct *fsp, SMB_ACL_T theacl)
2286 {
2287 VFS_FIND(sys_acl_set_fd);
2288 return handle->fns->sys_acl_set_fd_fn(handle, fsp, theacl);
2289 }
2290
2291 int smb_vfs_call_sys_acl_delete_def_file(struct vfs_handle_struct *handle,
2292 const char *path)
2293 {
2294 VFS_FIND(sys_acl_delete_def_file);
2295 return handle->fns->sys_acl_delete_def_file_fn(handle, path);
2296 }
2297
2298 ssize_t smb_vfs_call_getxattr(struct vfs_handle_struct *handle,
2299 const char *path, const char *name, void *value,
2300 size_t size)
2301 {
2302 VFS_FIND(getxattr);
2303 return handle->fns->getxattr_fn(handle, path, name, value, size);
2304 }
2305
2306 ssize_t smb_vfs_call_fgetxattr(struct vfs_handle_struct *handle,
2307 struct files_struct *fsp, const char *name,
2308 void *value, size_t size)
2309 {
2310 VFS_FIND(fgetxattr);
2311 return handle->fns->fgetxattr_fn(handle, fsp, name, value, size);
2312 }
2313
2314 ssize_t smb_vfs_call_listxattr(struct vfs_handle_struct *handle,
2315 const char *path, char *list, size_t size)
2316 {
2317 VFS_FIND(listxattr);
2318 return handle->fns->listxattr_fn(handle, path, list, size);
2319 }
2320
2321 ssize_t smb_vfs_call_flistxattr(struct vfs_handle_struct *handle,
2322 struct files_struct *fsp, char *list,
2323 size_t size)
2324 {
2325 VFS_FIND(flistxattr);
2326 return handle->fns->flistxattr_fn(handle, fsp, list, size);
2327 }
2328
2329 int smb_vfs_call_removexattr(struct vfs_handle_struct *handle,
2330 const char *path, const char *name)
2331 {
2332 VFS_FIND(removexattr);
2333 return handle->fns->removexattr_fn(handle, path, name);
2334 }
2335
2336 int smb_vfs_call_fremovexattr(struct vfs_handle_struct *handle,
2337 struct files_struct *fsp, const char *name)
2338 {
2339 VFS_FIND(fremovexattr);
2340 return handle->fns->fremovexattr_fn(handle, fsp, name);
2341 }
2342
2343 int smb_vfs_call_setxattr(struct vfs_handle_struct *handle, const char *path,
2344 const char *name, const void *value, size_t size,
2345 int flags)
2346 {
2347 VFS_FIND(setxattr);
2348 return handle->fns->setxattr_fn(handle, path, name, value, size, flags);
2349 }
2350
2351 int smb_vfs_call_fsetxattr(struct vfs_handle_struct *handle,
2352 struct files_struct *fsp, const char *name,
2353 const void *value, size_t size, int flags)
2354 {
2355 VFS_FIND(fsetxattr);
2356 return handle->fns->fsetxattr_fn(handle, fsp, name, value, size, flags);
2357 }
2358
2359 bool smb_vfs_call_aio_force(struct vfs_handle_struct *handle,
2360 struct files_struct *fsp)
2361 {
2362 VFS_FIND(aio_force);
2363 return handle->fns->aio_force_fn(handle, fsp);
2364 }
2365
2366 bool smb_vfs_call_is_offline(struct vfs_handle_struct *handle,
2367 const struct smb_filename *fname,
2368 SMB_STRUCT_STAT *sbuf)
2369 {
2370 VFS_FIND(is_offline);
2371 return handle->fns->is_offline_fn(handle, fname, sbuf);
2372 }
2373
2374 int smb_vfs_call_set_offline(struct vfs_handle_struct *handle,
2375 const struct smb_filename *fname)
2376 {
2377 VFS_FIND(set_offline);
2378 return handle->fns->set_offline_fn(handle, fname);
2379 }
2380
2381 NTSTATUS smb_vfs_call_durable_cookie(struct vfs_handle_struct *handle,
2382 struct files_struct *fsp,
2383 TALLOC_CTX *mem_ctx,
2384 DATA_BLOB *cookie)
2385 {
2386 VFS_FIND(durable_cookie);
2387 return handle->fns->durable_cookie_fn(handle, fsp, mem_ctx, cookie);
2388 }
2389
2390 NTSTATUS smb_vfs_call_durable_disconnect(struct vfs_handle_struct *handle,
2391 struct files_struct *fsp,
2392 const DATA_BLOB old_cookie,
2393 TALLOC_CTX *mem_ctx,
2394 DATA_BLOB *new_cookie)
2395 {
2396 VFS_FIND(durable_disconnect);
2397 return handle->fns->durable_disconnect_fn(handle, fsp, old_cookie,
2398 mem_ctx, new_cookie);
2399 }
2400
2401 NTSTATUS smb_vfs_call_durable_reconnect(struct vfs_handle_struct *handle,
2402 struct smb_request *smb1req,
2403 struct smbXsrv_open *op,
2404 const DATA_BLOB old_cookie,
2405 TALLOC_CTX *mem_ctx,
2406 struct files_struct **fsp,
2407 DATA_BLOB *new_cookie)
2408 {
2409 VFS_FIND(durable_reconnect);
2410 return handle->fns->durable_reconnect_fn(handle, smb1req, op,
2411 old_cookie, mem_ctx, fsp,
2412 new_cookie);
2413 }
stuff from bjacke