2 Unix SMB/Netbios implementation.
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
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.
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.
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/>.
23 This work was sponsored by Optifacio Software Services, Inc.
27 #include "system/filesys.h"
28 #include "smbd/smbd.h"
29 #include "smbd/globals.h"
30 #include "../lib/util/memcache.h"
31 #include "transfer_file.h"
33 #include "lib/util/tevent_unix.h"
34 #include "lib/util/tevent_ntstatus.h"
35 #include "lib/util/sys_rw.h"
38 #define DBGC_CLASS DBGC_VFS
43 struct vfs_fsp_data
*next
;
44 struct vfs_handle_struct
*owner
;
45 void (*destroy
)(void *p_data
);
47 /* NOTE: This structure contains four pointers so that we can guarantee
48 * that the end of the structure is always both 4-byte and 8-byte aligned.
52 struct vfs_init_function_entry
{
54 struct vfs_init_function_entry
*prev
, *next
;
55 const struct vfs_fn_pointers
*fns
;
58 /****************************************************************************
59 maintain the list of available backends
60 ****************************************************************************/
62 static struct vfs_init_function_entry
*vfs_find_backend_entry(const char *name
)
64 struct vfs_init_function_entry
*entry
= backends
;
66 DEBUG(10, ("vfs_find_backend_entry called for %s\n", name
));
69 if (strcmp(entry
->name
, name
)==0) return entry
;
76 NTSTATUS
smb_register_vfs(int version
, const char *name
,
77 const struct vfs_fn_pointers
*fns
)
79 struct vfs_init_function_entry
*entry
= backends
;
81 if ((version
!= SMB_VFS_INTERFACE_VERSION
)) {
82 DEBUG(0, ("Failed to register vfs module.\n"
83 "The module was compiled against SMB_VFS_INTERFACE_VERSION %d,\n"
84 "current SMB_VFS_INTERFACE_VERSION is %d.\n"
85 "Please recompile against the current Samba Version!\n",
86 version
, SMB_VFS_INTERFACE_VERSION
));
87 return NT_STATUS_OBJECT_TYPE_MISMATCH
;
90 if (!name
|| !name
[0]) {
91 DEBUG(0,("smb_register_vfs() called with NULL pointer or empty name!\n"));
92 return NT_STATUS_INVALID_PARAMETER
;
95 if (vfs_find_backend_entry(name
)) {
96 DEBUG(0,("VFS module %s already loaded!\n", name
));
97 return NT_STATUS_OBJECT_NAME_COLLISION
;
100 entry
= SMB_XMALLOC_P(struct vfs_init_function_entry
);
101 entry
->name
= smb_xstrdup(name
);
104 DLIST_ADD(backends
, entry
);
105 DEBUG(5, ("Successfully added vfs backend '%s'\n", name
));
109 /****************************************************************************
110 initialise default vfs hooks
111 ****************************************************************************/
113 static void vfs_init_default(connection_struct
*conn
)
115 DEBUG(3, ("Initialising default vfs hooks\n"));
116 vfs_init_custom(conn
, DEFAULT_VFS_MODULE_NAME
);
119 /****************************************************************************
120 initialise custom vfs hooks
121 ****************************************************************************/
123 bool vfs_init_custom(connection_struct
*conn
, const char *vfs_object
)
125 char *module_path
= NULL
;
126 char *module_name
= NULL
;
127 char *module_param
= NULL
, *p
;
128 vfs_handle_struct
*handle
;
129 const struct vfs_init_function_entry
*entry
;
131 if (!conn
||!vfs_object
||!vfs_object
[0]) {
132 DEBUG(0, ("vfs_init_custom() called with NULL pointer or "
133 "empty vfs_object!\n"));
138 static_init_vfs(NULL
);
141 DEBUG(3, ("Initialising custom vfs hooks from [%s]\n", vfs_object
));
143 module_path
= smb_xstrdup(vfs_object
);
145 p
= strchr_m(module_path
, ':');
150 trim_char(module_param
, ' ', ' ');
153 trim_char(module_path
, ' ', ' ');
155 module_name
= smb_xstrdup(module_path
);
157 if ((module_name
[0] == '/') &&
158 (strcmp(module_path
, DEFAULT_VFS_MODULE_NAME
) != 0)) {
161 * Extract the module name from the path. Just use the base
162 * name of the last path component.
165 SAFE_FREE(module_name
);
166 module_name
= smb_xstrdup(strrchr_m(module_path
, '/')+1);
168 p
= strchr_m(module_name
, '.');
175 /* First, try to load the module with the new module system */
176 entry
= vfs_find_backend_entry(module_name
);
180 DEBUG(5, ("vfs module [%s] not loaded - trying to load...\n",
183 status
= smb_load_module("vfs", module_path
);
184 if (!NT_STATUS_IS_OK(status
)) {
185 DEBUG(0, ("error probing vfs module '%s': %s\n",
186 module_path
, nt_errstr(status
)));
190 entry
= vfs_find_backend_entry(module_name
);
192 DEBUG(0,("Can't find a vfs module [%s]\n",vfs_object
));
197 DEBUGADD(5,("Successfully loaded vfs module [%s] with the new modules system\n", vfs_object
));
199 handle
= talloc_zero(conn
, vfs_handle_struct
);
201 DEBUG(0,("TALLOC_ZERO() failed!\n"));
205 handle
->fns
= entry
->fns
;
207 handle
->param
= talloc_strdup(conn
, module_param
);
209 DLIST_ADD(conn
->vfs_handles
, handle
);
211 SAFE_FREE(module_path
);
212 SAFE_FREE(module_name
);
216 SAFE_FREE(module_path
);
217 SAFE_FREE(module_name
);
221 /*****************************************************************
222 Allow VFS modules to extend files_struct with VFS-specific state.
223 This will be ok for small numbers of extensions, but might need to
224 be refactored if it becomes more widely used.
225 ******************************************************************/
227 #define EXT_DATA_AREA(e) ((uint8_t *)(e) + sizeof(struct vfs_fsp_data))
229 void *vfs_add_fsp_extension_notype(vfs_handle_struct
*handle
,
230 files_struct
*fsp
, size_t ext_size
,
231 void (*destroy_fn
)(void *p_data
))
233 struct vfs_fsp_data
*ext
;
236 /* Prevent VFS modules adding multiple extensions. */
237 if ((ext_data
= vfs_fetch_fsp_extension(handle
, fsp
))) {
241 ext
= talloc_zero_size(
242 handle
->conn
, sizeof(struct vfs_fsp_data
) + ext_size
);
248 ext
->next
= fsp
->vfs_extension
;
249 ext
->destroy
= destroy_fn
;
250 fsp
->vfs_extension
= ext
;
251 return EXT_DATA_AREA(ext
);
254 void vfs_remove_fsp_extension(vfs_handle_struct
*handle
, files_struct
*fsp
)
256 struct vfs_fsp_data
*curr
;
257 struct vfs_fsp_data
*prev
;
259 for (curr
= fsp
->vfs_extension
, prev
= NULL
;
261 prev
= curr
, curr
= curr
->next
) {
262 if (curr
->owner
== handle
) {
264 prev
->next
= curr
->next
;
266 fsp
->vfs_extension
= curr
->next
;
269 curr
->destroy(EXT_DATA_AREA(curr
));
277 void vfs_remove_all_fsp_extensions(files_struct
*fsp
)
279 struct vfs_fsp_data
*curr
;
280 struct vfs_fsp_data
*next
;
282 for (curr
= fsp
->vfs_extension
; curr
; curr
= next
) {
285 fsp
->vfs_extension
= next
;
288 curr
->destroy(EXT_DATA_AREA(curr
));
294 void *vfs_memctx_fsp_extension(vfs_handle_struct
*handle
,
295 const struct files_struct
*fsp
)
297 struct vfs_fsp_data
*head
;
299 for (head
= fsp
->vfs_extension
; head
; head
= head
->next
) {
300 if (head
->owner
== handle
) {
308 void *vfs_fetch_fsp_extension(vfs_handle_struct
*handle
,
309 const struct files_struct
*fsp
)
311 struct vfs_fsp_data
*head
;
313 head
= (struct vfs_fsp_data
*)vfs_memctx_fsp_extension(handle
, fsp
);
315 return EXT_DATA_AREA(head
);
324 * Ensure this module catches all VFS functions.
327 void smb_vfs_assert_all_fns(const struct vfs_fn_pointers
* fns
,
330 bool missing_fn
= false;
332 const uintptr_t *end
= (const uintptr_t *)(fns
+ 1);
334 for (idx
= 0; ((const uintptr_t *)fns
+ idx
) < end
; idx
++) {
335 if (*((const uintptr_t *)fns
+ idx
) == 0) {
336 DBG_ERR("VFS function at index %d not implemented "
337 "in module %s\n", idx
, module
);
343 smb_panic("Required VFS function not implemented in module.\n");
347 void smb_vfs_assert_all_fns(const struct vfs_fn_pointers
* fns
,
353 /*****************************************************************
355 ******************************************************************/
357 bool smbd_vfs_init(connection_struct
*conn
)
359 const char **vfs_objects
;
363 /* Normal share - initialise with disk access functions */
364 vfs_init_default(conn
);
366 /* No need to load vfs modules for printer connections */
371 if (lp_widelinks(SNUM(conn
))) {
373 * As the widelinks logic is now moving into a
374 * vfs_widelinks module, we need to custom load
375 * it after the default module is initialized.
376 * That way no changes to smb.conf files are
379 bool ok
= vfs_init_custom(conn
, "widelinks");
381 DBG_ERR("widelinks enabled and vfs_init_custom "
382 "failed for vfs_widelinks module\n");
387 vfs_objects
= lp_vfs_objects(SNUM(conn
));
389 /* Override VFS functions if 'vfs object' was not specified*/
390 if (!vfs_objects
|| !vfs_objects
[0])
393 for (i
=0; vfs_objects
[i
] ;) {
397 for (j
=i
-1; j
>= 0; j
--) {
398 if (!vfs_init_custom(conn
, vfs_objects
[j
])) {
399 DEBUG(0, ("smbd_vfs_init: vfs_init_custom failed for %s\n", vfs_objects
[j
]));
406 /*******************************************************************
407 Check if a file exists in the vfs.
408 ********************************************************************/
410 NTSTATUS
vfs_file_exist(connection_struct
*conn
, struct smb_filename
*smb_fname
)
412 /* Only return OK if stat was successful and S_ISREG */
413 if ((SMB_VFS_STAT(conn
, smb_fname
) != -1) &&
414 S_ISREG(smb_fname
->st
.st_ex_mode
)) {
418 return NT_STATUS_OBJECT_NAME_NOT_FOUND
;
421 bool vfs_valid_pread_range(off_t offset
, size_t length
)
423 return sys_valid_io_range(offset
, length
);
426 bool vfs_valid_pwrite_range(off_t offset
, size_t length
)
429 * See MAXFILESIZE in [MS-FSA] 2.1.5.3 Server Requests a Write
431 static const uint64_t maxfilesize
= 0xfffffff0000;
432 uint64_t last_byte_ofs
;
435 ok
= sys_valid_io_range(offset
, length
);
444 last_byte_ofs
= offset
+ length
;
445 if (last_byte_ofs
> maxfilesize
) {
452 ssize_t
vfs_pwrite_data(struct smb_request
*req
,
462 ok
= vfs_valid_pwrite_range(offset
, N
);
468 if (req
&& req
->unread_bytes
) {
469 int sockfd
= req
->xconn
->transport
.sock
;
470 SMB_ASSERT(req
->unread_bytes
== N
);
471 /* VFS_RECVFILE must drain the socket
472 * before returning. */
473 req
->unread_bytes
= 0;
475 * Leave the socket non-blocking and
476 * use SMB_VFS_RECVFILE. If it returns
477 * EAGAIN || EWOULDBLOCK temporarily set
478 * the socket blocking and retry
482 ret
= SMB_VFS_RECVFILE(sockfd
,
486 if (ret
== 0 || (ret
== -1 &&
488 errno
== EWOULDBLOCK
))) {
490 /* Ensure the socket is blocking. */
491 old_flags
= fcntl(sockfd
, F_GETFL
, 0);
492 if (set_blocking(sockfd
, true) == -1) {
495 ret
= SMB_VFS_RECVFILE(sockfd
,
499 if (fcntl(sockfd
, F_SETFL
, old_flags
) == -1) {
506 return (ssize_t
)total
;
508 /* Any other error case. */
514 return (ssize_t
)total
;
518 ret
= SMB_VFS_PWRITE(fsp
, buffer
+ total
, N
- total
,
528 return (ssize_t
)total
;
530 /****************************************************************************
531 An allocate file space call using the vfs interface.
532 Allocates space for a file from a filedescriptor.
533 Returns 0 on success, -1 on failure.
534 ****************************************************************************/
536 int vfs_allocate_file_space(files_struct
*fsp
, uint64_t len
)
539 connection_struct
*conn
= fsp
->conn
;
540 uint64_t space_avail
;
541 uint64_t bsize
,dfree
,dsize
;
546 * Actually try and commit the space on disk....
549 DEBUG(10,("vfs_allocate_file_space: file %s, len %.0f\n",
550 fsp_str_dbg(fsp
), (double)len
));
552 ok
= vfs_valid_pwrite_range((off_t
)len
, 0);
554 DEBUG(0,("vfs_allocate_file_space: %s negative/invalid len "
555 "requested.\n", fsp_str_dbg(fsp
)));
560 status
= vfs_stat_fsp(fsp
);
561 if (!NT_STATUS_IS_OK(status
)) {
565 if (len
== (uint64_t)fsp
->fsp_name
->st
.st_ex_size
)
568 if (len
< (uint64_t)fsp
->fsp_name
->st
.st_ex_size
) {
569 /* Shrink - use ftruncate. */
571 DEBUG(10,("vfs_allocate_file_space: file %s, shrink. Current "
572 "size %.0f\n", fsp_str_dbg(fsp
),
573 (double)fsp
->fsp_name
->st
.st_ex_size
));
575 contend_level2_oplocks_begin(fsp
, LEVEL2_CONTEND_ALLOC_SHRINK
);
577 ret
= SMB_VFS_FTRUNCATE(fsp
, (off_t
)len
);
579 contend_level2_oplocks_end(fsp
, LEVEL2_CONTEND_ALLOC_SHRINK
);
584 /* Grow - we need to test if we have enough space. */
586 contend_level2_oplocks_begin(fsp
, LEVEL2_CONTEND_ALLOC_GROW
);
588 if (lp_strict_allocate(SNUM(fsp
->conn
))) {
589 /* See if we have a syscall that will allocate beyond
590 end-of-file without changing EOF. */
591 ret
= SMB_VFS_FALLOCATE(fsp
, VFS_FALLOCATE_FL_KEEP_SIZE
,
597 contend_level2_oplocks_end(fsp
, LEVEL2_CONTEND_ALLOC_GROW
);
600 /* We changed the allocation size on disk, but not
601 EOF - exactly as required. We're done ! */
605 if (ret
== -1 && errno
== ENOSPC
) {
609 len
-= fsp
->fsp_name
->st
.st_ex_size
;
610 len
/= 1024; /* Len is now number of 1k blocks needed. */
612 get_dfree_info(conn
, fsp
->fsp_name
, &bsize
, &dfree
, &dsize
);
613 if (space_avail
== (uint64_t)-1) {
617 DEBUG(10,("vfs_allocate_file_space: file %s, grow. Current size %.0f, "
618 "needed blocks = %.0f, space avail = %.0f\n",
619 fsp_str_dbg(fsp
), (double)fsp
->fsp_name
->st
.st_ex_size
, (double)len
,
620 (double)space_avail
));
622 if (len
> space_avail
) {
630 /****************************************************************************
631 A vfs set_filelen call.
632 set the length of a file from a filedescriptor.
633 Returns 0 on success, -1 on failure.
634 ****************************************************************************/
636 int vfs_set_filelen(files_struct
*fsp
, off_t len
)
641 ok
= vfs_valid_pwrite_range(len
, 0);
647 contend_level2_oplocks_begin(fsp
, LEVEL2_CONTEND_SET_FILE_LEN
);
649 DEBUG(10,("vfs_set_filelen: ftruncate %s to len %.0f\n",
650 fsp_str_dbg(fsp
), (double)len
));
651 if ((ret
= SMB_VFS_FTRUNCATE(fsp
, len
)) != -1) {
652 notify_fname(fsp
->conn
, NOTIFY_ACTION_MODIFIED
,
653 FILE_NOTIFY_CHANGE_SIZE
654 | FILE_NOTIFY_CHANGE_ATTRIBUTES
,
655 fsp
->fsp_name
->base_name
);
658 contend_level2_oplocks_end(fsp
, LEVEL2_CONTEND_SET_FILE_LEN
);
663 /****************************************************************************
664 A slow version of fallocate. Fallback code if SMB_VFS_FALLOCATE
665 fails. Needs to be outside of the default version of SMB_VFS_FALLOCATE
666 as this is also called from the default SMB_VFS_FTRUNCATE code.
667 Always extends the file size.
668 Returns 0 on success, -1 on failure.
669 ****************************************************************************/
671 #define SPARSE_BUF_WRITE_SIZE (32*1024)
673 int vfs_slow_fallocate(files_struct
*fsp
, off_t offset
, off_t len
)
679 ok
= vfs_valid_pwrite_range(offset
, len
);
686 sparse_buf
= SMB_CALLOC_ARRAY(char, SPARSE_BUF_WRITE_SIZE
);
693 while (total
< len
) {
694 size_t curr_write_size
= MIN(SPARSE_BUF_WRITE_SIZE
, (len
- total
));
696 pwrite_ret
= SMB_VFS_PWRITE(fsp
, sparse_buf
, curr_write_size
, offset
+ total
);
697 if (pwrite_ret
== -1) {
698 int saved_errno
= errno
;
699 DEBUG(10,("vfs_slow_fallocate: SMB_VFS_PWRITE for file "
700 "%s failed with error %s\n",
701 fsp_str_dbg(fsp
), strerror(saved_errno
)));
711 /****************************************************************************
712 A vfs fill sparse call.
713 Writes zeros from the end of file to len, if len is greater than EOF.
714 Used only by strict_sync.
715 Returns 0 on success, -1 on failure.
716 ****************************************************************************/
718 int vfs_fill_sparse(files_struct
*fsp
, off_t len
)
726 ok
= vfs_valid_pwrite_range(len
, 0);
732 status
= vfs_stat_fsp(fsp
);
733 if (!NT_STATUS_IS_OK(status
)) {
737 if (len
<= fsp
->fsp_name
->st
.st_ex_size
) {
742 if (S_ISFIFO(fsp
->fsp_name
->st
.st_ex_mode
)) {
747 DEBUG(10,("vfs_fill_sparse: write zeros in file %s from len %.0f to "
748 "len %.0f (%.0f bytes)\n", fsp_str_dbg(fsp
),
749 (double)fsp
->fsp_name
->st
.st_ex_size
, (double)len
,
750 (double)(len
- fsp
->fsp_name
->st
.st_ex_size
)));
752 contend_level2_oplocks_begin(fsp
, LEVEL2_CONTEND_FILL_SPARSE
);
754 offset
= fsp
->fsp_name
->st
.st_ex_size
;
755 num_to_write
= len
- fsp
->fsp_name
->st
.st_ex_size
;
757 /* Only do this on non-stream file handles. */
758 if (fsp
->base_fsp
== NULL
) {
759 /* for allocation try fallocate first. This can fail on some
760 * platforms e.g. when the filesystem doesn't support it and no
761 * emulation is being done by the libc (like on AIX with JFS1). In that
762 * case we do our own emulation. fallocate implementations can
763 * return ENOTSUP or EINVAL in cases like that. */
764 ret
= SMB_VFS_FALLOCATE(fsp
, 0, offset
, num_to_write
);
765 if (ret
== -1 && errno
== ENOSPC
) {
771 DEBUG(10,("vfs_fill_sparse: SMB_VFS_FALLOCATE failed with "
772 "error %d. Falling back to slow manual allocation\n", ret
));
775 ret
= vfs_slow_fallocate(fsp
, offset
, num_to_write
);
779 contend_level2_oplocks_end(fsp
, LEVEL2_CONTEND_FILL_SPARSE
);
783 /*******************************************************************************
784 Set a fd into blocking/nonblocking mode through VFS
785 *******************************************************************************/
787 int vfs_set_blocking(files_struct
*fsp
, bool set
)
791 #define FLAG_TO_SET O_NONBLOCK
794 #define FLAG_TO_SET O_NDELAY
796 #define FLAG_TO_SET FNDELAY
800 if (fsp
->fsp_flags
.is_pathref
) {
804 val
= SMB_VFS_FCNTL(fsp
, F_GETFL
, 0);
815 return SMB_VFS_FCNTL(fsp
, F_SETFL
, val
);
819 /****************************************************************************
820 Transfer some data (n bytes) between two file_struct's.
821 ****************************************************************************/
823 static ssize_t
vfs_pread_fn(void *file
, void *buf
, size_t len
, off_t offset
)
825 struct files_struct
*fsp
= (struct files_struct
*)file
;
827 return SMB_VFS_PREAD(fsp
, buf
, len
, offset
);
830 static ssize_t
vfs_pwrite_fn(void *file
, const void *buf
, size_t len
, off_t offset
)
832 struct files_struct
*fsp
= (struct files_struct
*)file
;
834 return SMB_VFS_PWRITE(fsp
, buf
, len
, offset
);
837 off_t
vfs_transfer_file(files_struct
*in
, files_struct
*out
, off_t n
)
839 return transfer_file_internal((void *)in
, (void *)out
, n
,
840 vfs_pread_fn
, vfs_pwrite_fn
);
843 /*******************************************************************
844 A vfs_readdir wrapper which just returns the file name.
845 ********************************************************************/
847 const char *vfs_readdirname(connection_struct
*conn
,
848 struct files_struct
*dirfsp
,
850 SMB_STRUCT_STAT
*sbuf
,
853 struct dirent
*ptr
= NULL
;
861 ptr
= SMB_VFS_READDIR(conn
, dirfsp
, (DIR *)p
, sbuf
);
867 status
= SMB_VFS_TRANSLATE_NAME(conn
, dname
, vfs_translate_to_windows
,
868 talloc_tos(), &translated
);
869 if (NT_STATUS_EQUAL(status
, NT_STATUS_NONE_MAPPED
)) {
873 *talloced
= translated
;
874 if (!NT_STATUS_IS_OK(status
)) {
880 /*******************************************************************
881 A wrapper for vfs_chdir().
882 ********************************************************************/
884 int vfs_ChDir(connection_struct
*conn
, const struct smb_filename
*smb_fname
)
887 struct smb_filename
*cwd
= NULL
;
890 LastDir
= SMB_STRDUP("");
893 if (ISDOT(smb_fname
->base_name
)) {
895 * passing a '.' is a noop,
896 * and we only expect this after
897 * everything is initialized.
899 * So the first vfs_ChDir() on a given
900 * connection_struct must not be '.'.
902 * Note: conn_new() sets
903 * conn->cwd_fsp->fh->fd = -1
904 * and vfs_ChDir() leaves with
905 * conn->cwd_fsp->fh->fd = AT_FDCWD
908 if (fsp_get_pathref_fd(conn
->cwd_fsp
) != AT_FDCWD
) {
910 * This should never happen and
911 * we might change this to
912 * SMB_ASSERT() in future.
914 DBG_ERR("Called with '.' as first operation!\n");
922 if (smb_fname
->base_name
[0] == '/' &&
923 strcsequal(LastDir
,smb_fname
->base_name
))
926 * conn->cwd_fsp->fsp_name and the kernel
927 * are already correct, but conn->cwd_fsp->fh->fd
928 * might still be -1 as initialized in conn_new().
930 * This can happen when a client made a 2nd
931 * tree connect to a share with the same underlying
932 * path (may or may not the same share).
934 fsp_set_fd(conn
->cwd_fsp
, AT_FDCWD
);
938 DEBUG(4,("vfs_ChDir to %s\n", smb_fname
->base_name
));
940 ret
= SMB_VFS_CHDIR(conn
, smb_fname
);
946 * Always replace conn->cwd_fsp. We
947 * don't know if it's been modified by
948 * VFS modules in the stack.
950 fsp_set_fd(conn
->cwd_fsp
, AT_FDCWD
);
953 cwd
= vfs_GetWd(conn
, conn
);
956 * vfs_GetWd() failed.
957 * We must be able to read cwd.
958 * Return to original directory
961 int saved_errno
= errno
;
963 if (conn
->cwd_fsp
->fsp_name
== NULL
) {
965 * Failed on the very first chdir()+getwd()
966 * for this connection. We can't
969 smb_panic("conn->cwd getwd failed\n");
974 /* Return to the previous $cwd. */
975 ret
= SMB_VFS_CHDIR(conn
, conn
->cwd_fsp
->fsp_name
);
977 smb_panic("conn->cwd getwd failed\n");
982 /* And fail the chdir(). */
986 /* vfs_GetWd() succeeded. */
987 /* Replace global cache. */
989 LastDir
= SMB_STRDUP(smb_fname
->base_name
);
992 * (Indirect) Callers of vfs_ChDir() may still hold references to the
993 * old conn->cwd_fsp->fsp_name. Move it to talloc_tos(), that way
994 * callers can use it for the lifetime of the SMB request.
996 talloc_move(talloc_tos(), &conn
->cwd_fsp
->fsp_name
);
998 conn
->cwd_fsp
->fsp_name
= talloc_move(conn
->cwd_fsp
, &cwd
);
1000 DBG_INFO("vfs_ChDir got %s\n", fsp_str_dbg(conn
->cwd_fsp
));
1005 /*******************************************************************
1006 Return the absolute current directory path - given a UNIX pathname.
1007 Note that this path is returned in DOS format, not UNIX
1008 format. Note this can be called with conn == NULL.
1009 ********************************************************************/
1011 struct smb_filename
*vfs_GetWd(TALLOC_CTX
*ctx
, connection_struct
*conn
)
1013 struct smb_filename
*current_dir_fname
= NULL
;
1015 struct smb_filename
*smb_fname_dot
= NULL
;
1016 struct smb_filename
*smb_fname_full
= NULL
;
1017 struct smb_filename
*result
= NULL
;
1019 if (!lp_getwd_cache()) {
1023 smb_fname_dot
= synthetic_smb_fname(ctx
,
1029 if (smb_fname_dot
== NULL
) {
1034 if (SMB_VFS_STAT(conn
, smb_fname_dot
) == -1) {
1036 * Known to fail for root: the directory may be NFS-mounted
1037 * and exported with root_squash (so has no root access).
1039 DEBUG(1,("vfs_GetWd: couldn't stat \".\" error %s "
1040 "(NFS problem ?)\n", strerror(errno
) ));
1044 key
= vfs_file_id_from_sbuf(conn
, &smb_fname_dot
->st
);
1046 smb_fname_full
= (struct smb_filename
*)memcache_lookup_talloc(
1049 data_blob_const(&key
, sizeof(key
)));
1051 if (smb_fname_full
== NULL
) {
1055 if ((SMB_VFS_STAT(conn
, smb_fname_full
) == 0) &&
1056 (smb_fname_dot
->st
.st_ex_dev
== smb_fname_full
->st
.st_ex_dev
) &&
1057 (smb_fname_dot
->st
.st_ex_ino
== smb_fname_full
->st
.st_ex_ino
) &&
1058 (S_ISDIR(smb_fname_dot
->st
.st_ex_mode
))) {
1061 * Note: smb_fname_full is owned by smbd_memcache()
1062 * so we must make a copy to return.
1064 result
= cp_smb_filename(ctx
, smb_fname_full
);
1065 if (result
== NULL
) {
1074 * We don't have the information to hand so rely on traditional
1075 * methods. The very slow getcwd, which spawns a process on some
1076 * systems, or the not quite so bad getwd.
1079 current_dir_fname
= SMB_VFS_GETWD(conn
, ctx
);
1080 if (current_dir_fname
== NULL
) {
1081 DEBUG(0, ("vfs_GetWd: SMB_VFS_GETWD call failed: %s\n",
1086 if (lp_getwd_cache() && VALID_STAT(smb_fname_dot
->st
)) {
1087 key
= vfs_file_id_from_sbuf(conn
, &smb_fname_dot
->st
);
1090 * smbd_memcache() will own current_dir_fname after the
1091 * memcache_add_talloc call, so we must make
1092 * a copy on ctx to return.
1094 result
= cp_smb_filename(ctx
, current_dir_fname
);
1095 if (result
== NULL
) {
1100 * Ensure the memory going into the cache
1101 * doesn't have a destructor so it can be
1104 talloc_set_destructor(current_dir_fname
, NULL
);
1106 memcache_add_talloc(smbd_memcache(),
1108 data_blob_const(&key
, sizeof(key
)),
1109 ¤t_dir_fname
);
1110 /* current_dir_fname is now == NULL here. */
1112 /* current_dir_fname is already allocated on ctx. */
1113 result
= current_dir_fname
;
1117 TALLOC_FREE(smb_fname_dot
);
1119 * Don't free current_dir_fname here. It's either been moved
1120 * to the memcache or is being returned in result.
1125 /*******************************************************************
1126 Reduce a file name, removing .. elements and checking that
1127 it is below dir in the hierarchy. This uses realpath.
1129 If cwd_name == NULL then fname is a client given path relative
1130 to the root path of the share.
1132 If cwd_name != NULL then fname is a client given path relative
1133 to cwd_name. cwd_name is relative to the root path of the share.
1134 ********************************************************************/
1136 NTSTATUS
check_reduced_name(connection_struct
*conn
,
1137 const struct smb_filename
*cwd_fname
,
1138 const struct smb_filename
*smb_fname
)
1140 TALLOC_CTX
*ctx
= talloc_tos();
1141 const char *cwd_name
= cwd_fname
? cwd_fname
->base_name
: NULL
;
1142 const char *fname
= smb_fname
->base_name
;
1143 struct smb_filename
*resolved_fname
;
1144 char *resolved_name
= NULL
;
1145 char *new_fname
= NULL
;
1146 bool allow_symlinks
= true;
1147 const char *conn_rootdir
;
1150 DBG_DEBUG("check_reduced_name [%s] [%s]\n", fname
, conn
->connectpath
);
1152 resolved_fname
= SMB_VFS_REALPATH(conn
, ctx
, smb_fname
);
1154 if (resolved_fname
== NULL
) {
1156 struct smb_filename
*dir_fname
= NULL
;
1157 struct smb_filename
*last_component
= NULL
;
1159 if (errno
== ENOTDIR
) {
1160 DBG_NOTICE("Component not a directory in getting "
1161 "realpath for %s\n",
1163 return NT_STATUS_OBJECT_PATH_NOT_FOUND
;
1165 if (errno
!= ENOENT
) {
1166 status
= map_nt_error_from_unix(errno
);
1167 DBG_NOTICE("couldn't get realpath for %s: %s\n",
1173 /* errno == ENOENT */
1176 * Last component didn't exist. Remove it and try and
1177 * canonicalise the directory name.
1180 status
= SMB_VFS_PARENT_PATHNAME(conn
,
1185 if (!NT_STATUS_IS_OK(status
)) {
1189 resolved_fname
= SMB_VFS_REALPATH(conn
, ctx
, dir_fname
);
1190 if (resolved_fname
== NULL
) {
1191 status
= map_nt_error_from_unix(errno
);
1193 if (errno
== ENOENT
|| errno
== ENOTDIR
) {
1194 status
= NT_STATUS_OBJECT_PATH_NOT_FOUND
;
1197 DBG_NOTICE("couldn't get realpath for "
1199 smb_fname_str_dbg(dir_fname
),
1203 resolved_name
= talloc_asprintf(ctx
,
1205 resolved_fname
->base_name
,
1206 last_component
->base_name
);
1207 if (resolved_name
== NULL
) {
1208 return NT_STATUS_NO_MEMORY
;
1211 resolved_name
= resolved_fname
->base_name
;
1214 DEBUG(10,("check_reduced_name realpath [%s] -> [%s]\n", fname
,
1217 if (*resolved_name
!= '/') {
1218 DEBUG(0,("check_reduced_name: realpath doesn't return "
1219 "absolute paths !\n"));
1220 TALLOC_FREE(resolved_fname
);
1221 return NT_STATUS_OBJECT_NAME_INVALID
;
1224 /* Common widelinks and symlinks checks. */
1225 conn_rootdir
= SMB_VFS_CONNECTPATH(conn
, smb_fname
);
1226 if (conn_rootdir
== NULL
) {
1227 DBG_NOTICE("Could not get conn_rootdir\n");
1228 TALLOC_FREE(resolved_fname
);
1229 return NT_STATUS_ACCESS_DENIED
;
1232 rootdir_len
= strlen(conn_rootdir
);
1235 * In the case of rootdir_len == 1, we know that
1236 * conn_rootdir is "/", and we also know that
1237 * resolved_name starts with a slash. So, in this
1238 * corner case, resolved_name is automatically a
1239 * sub-directory of the conn_rootdir. Thus we can skip
1240 * the string comparison and the next character checks
1241 * (which are even wrong in this case).
1243 if (rootdir_len
!= 1) {
1246 matched
= (strncmp(conn_rootdir
, resolved_name
,
1248 if (!matched
|| (resolved_name
[rootdir_len
] != '/' &&
1249 resolved_name
[rootdir_len
] != '\0')) {
1250 DBG_NOTICE("Bad access attempt: %s is a symlink "
1253 "conn_rootdir =%s\n"
1254 "resolved_name=%s\n",
1258 TALLOC_FREE(resolved_fname
);
1259 return NT_STATUS_ACCESS_DENIED
;
1263 /* Extra checks if all symlinks are disallowed. */
1264 allow_symlinks
= lp_follow_symlinks(SNUM(conn
));
1265 if (!allow_symlinks
) {
1266 /* fname can't have changed in resolved_path. */
1267 const char *p
= &resolved_name
[rootdir_len
];
1270 * UNIX filesystem semantics, names consisting
1271 * only of "." or ".." CANNOT be symlinks.
1273 if (ISDOT(fname
) || ISDOTDOT(fname
)) {
1278 DBG_NOTICE("logic error (%c) "
1279 "in resolved_name: %s\n",
1282 TALLOC_FREE(resolved_fname
);
1283 return NT_STATUS_ACCESS_DENIED
;
1289 * If cwd_name is present and not ".",
1290 * then fname is relative to that, not
1291 * the root of the share. Make sure the
1292 * path we check is the one the client
1293 * sent (cwd_name+fname).
1295 if (cwd_name
!= NULL
&& !ISDOT(cwd_name
)) {
1296 new_fname
= talloc_asprintf(ctx
,
1300 if (new_fname
== NULL
) {
1301 TALLOC_FREE(resolved_fname
);
1302 return NT_STATUS_NO_MEMORY
;
1307 if (strcmp(fname
, p
)!=0) {
1308 DBG_NOTICE("Bad access "
1309 "attempt: %s is a symlink to %s\n",
1312 TALLOC_FREE(resolved_fname
);
1313 TALLOC_FREE(new_fname
);
1314 return NT_STATUS_ACCESS_DENIED
;
1320 DBG_INFO("%s reduced to %s\n", fname
, resolved_name
);
1321 TALLOC_FREE(resolved_fname
);
1322 TALLOC_FREE(new_fname
);
1323 return NT_STATUS_OK
;
1327 * Ensure LSTAT is called for POSIX paths.
1329 int vfs_stat(struct connection_struct
*conn
,
1330 struct smb_filename
*smb_fname
)
1332 if (smb_fname
->flags
& SMB_FILENAME_POSIX_PATH
) {
1333 return SMB_VFS_LSTAT(conn
, smb_fname
);
1335 return SMB_VFS_STAT(conn
, smb_fname
);
1339 * XXX: This is temporary and there should be no callers of this once
1340 * smb_filename is plumbed through all path based operations.
1342 * Called when we know stream name parsing has already been done.
1344 int vfs_stat_smb_basename(struct connection_struct
*conn
,
1345 const struct smb_filename
*smb_fname_in
,
1346 SMB_STRUCT_STAT
*psbuf
)
1348 struct smb_filename smb_fname
= {
1349 .base_name
= discard_const_p(char, smb_fname_in
->base_name
),
1350 .flags
= smb_fname_in
->flags
,
1351 .twrp
= smb_fname_in
->twrp
,
1355 ret
= vfs_stat(conn
, &smb_fname
);
1357 *psbuf
= smb_fname
.st
;
1363 * Ensure LSTAT is called for POSIX paths.
1366 NTSTATUS
vfs_stat_fsp(files_struct
*fsp
)
1369 struct stat_ex saved_stat
= fsp
->fsp_name
->st
;
1371 if (fsp_get_pathref_fd(fsp
) == -1) {
1372 if (fsp
->posix_flags
& FSP_POSIX_FLAGS_OPEN
) {
1373 ret
= SMB_VFS_LSTAT(fsp
->conn
, fsp
->fsp_name
);
1375 ret
= SMB_VFS_STAT(fsp
->conn
, fsp
->fsp_name
);
1378 ret
= SMB_VFS_FSTAT(fsp
, &fsp
->fsp_name
->st
);
1381 return map_nt_error_from_unix(errno
);
1383 update_stat_ex_from_saved_stat(&fsp
->fsp_name
->st
, &saved_stat
);
1384 return NT_STATUS_OK
;
1387 void init_smb_file_time(struct smb_file_time
*ft
)
1389 *ft
= (struct smb_file_time
) {
1390 .atime
= make_omit_timespec(),
1391 .ctime
= make_omit_timespec(),
1392 .mtime
= make_omit_timespec(),
1393 .create_time
= make_omit_timespec()
1398 * Initialize num_streams and streams, then call VFS op streaminfo
1401 NTSTATUS
vfs_fstreaminfo(struct files_struct
*fsp
,
1402 TALLOC_CTX
*mem_ctx
,
1403 unsigned int *num_streams
,
1404 struct stream_struct
**streams
)
1411 * Callers may pass fsp == NULL when passing smb_fname->fsp of a
1412 * symlink. This is ok, handle it here, by just return no
1413 * streams on a symlink.
1415 return NT_STATUS_OK
;
1418 if (fsp_get_pathref_fd(fsp
) == -1) {
1420 * No streams on non-real files/directories.
1422 return NT_STATUS_OK
;
1425 return SMB_VFS_FSTREAMINFO(fsp
,
1431 int vfs_fake_fd(void)
1437 * Return a valid fd, but ensure any attempt to use
1438 * it returns an error (EPIPE).
1440 ret
= pipe(pipe_fds
);
1450 * This is just a helper to make
1451 * users of vfs_fake_fd() more symmetric
1453 int vfs_fake_fd_close(int fd
)
1459 generate a file_id from a stat structure
1461 struct file_id
vfs_file_id_from_sbuf(connection_struct
*conn
, const SMB_STRUCT_STAT
*sbuf
)
1463 return SMB_VFS_FILE_ID_CREATE(conn
, sbuf
);
1466 NTSTATUS
vfs_at_fspcwd(TALLOC_CTX
*mem_ctx
,
1467 struct connection_struct
*conn
,
1468 struct files_struct
**_fsp
)
1470 struct files_struct
*fsp
= NULL
;
1472 fsp
= talloc_zero(mem_ctx
, struct files_struct
);
1474 return NT_STATUS_NO_MEMORY
;
1477 fsp
->fsp_name
= synthetic_smb_fname(fsp
, ".", NULL
, NULL
, 0, 0);
1478 if (fsp
->fsp_name
== NULL
) {
1480 return NT_STATUS_NO_MEMORY
;
1483 fsp
->fh
= fd_handle_create(fsp
);
1484 if (fsp
->fh
== NULL
) {
1486 return NT_STATUS_NO_MEMORY
;
1489 fsp_set_fd(fsp
, AT_FDCWD
);
1490 fsp
->fnum
= FNUM_FIELD_INVALID
;
1494 return NT_STATUS_OK
;
1497 int smb_vfs_call_connect(struct vfs_handle_struct
*handle
,
1498 const char *service
, const char *user
)
1501 return handle
->fns
->connect_fn(handle
, service
, user
);
1504 void smb_vfs_call_disconnect(struct vfs_handle_struct
*handle
)
1506 VFS_FIND(disconnect
);
1507 handle
->fns
->disconnect_fn(handle
);
1510 uint64_t smb_vfs_call_disk_free(struct vfs_handle_struct
*handle
,
1511 const struct smb_filename
*smb_fname
,
1516 VFS_FIND(disk_free
);
1517 return handle
->fns
->disk_free_fn(handle
, smb_fname
,
1518 bsize
, dfree
, dsize
);
1521 int smb_vfs_call_get_quota(struct vfs_handle_struct
*handle
,
1522 const struct smb_filename
*smb_fname
,
1523 enum SMB_QUOTA_TYPE qtype
,
1527 VFS_FIND(get_quota
);
1528 return handle
->fns
->get_quota_fn(handle
, smb_fname
, qtype
, id
, qt
);
1531 int smb_vfs_call_set_quota(struct vfs_handle_struct
*handle
,
1532 enum SMB_QUOTA_TYPE qtype
, unid_t id
,
1535 VFS_FIND(set_quota
);
1536 return handle
->fns
->set_quota_fn(handle
, qtype
, id
, qt
);
1539 int smb_vfs_call_get_shadow_copy_data(struct vfs_handle_struct
*handle
,
1540 struct files_struct
*fsp
,
1541 struct shadow_copy_data
*shadow_copy_data
,
1544 VFS_FIND(get_shadow_copy_data
);
1545 return handle
->fns
->get_shadow_copy_data_fn(handle
, fsp
,
1549 int smb_vfs_call_statvfs(struct vfs_handle_struct
*handle
,
1550 const struct smb_filename
*smb_fname
,
1551 struct vfs_statvfs_struct
*statbuf
)
1554 return handle
->fns
->statvfs_fn(handle
, smb_fname
, statbuf
);
1557 uint32_t smb_vfs_call_fs_capabilities(struct vfs_handle_struct
*handle
,
1558 enum timestamp_set_resolution
*p_ts_res
)
1560 VFS_FIND(fs_capabilities
);
1561 return handle
->fns
->fs_capabilities_fn(handle
, p_ts_res
);
1564 NTSTATUS
smb_vfs_call_get_dfs_referrals(struct vfs_handle_struct
*handle
,
1565 struct dfs_GetDFSReferral
*r
)
1567 VFS_FIND(get_dfs_referrals
);
1568 return handle
->fns
->get_dfs_referrals_fn(handle
, r
);
1571 NTSTATUS
smb_vfs_call_create_dfs_pathat(struct vfs_handle_struct
*handle
,
1572 struct files_struct
*dirfsp
,
1573 const struct smb_filename
*smb_fname
,
1574 const struct referral
*reflist
,
1575 size_t referral_count
)
1577 VFS_FIND(create_dfs_pathat
);
1578 return handle
->fns
->create_dfs_pathat_fn(handle
,
1585 NTSTATUS
smb_vfs_call_read_dfs_pathat(struct vfs_handle_struct
*handle
,
1586 TALLOC_CTX
*mem_ctx
,
1587 struct files_struct
*dirfsp
,
1588 struct smb_filename
*smb_fname
,
1589 struct referral
**ppreflist
,
1590 size_t *preferral_count
)
1592 VFS_FIND(read_dfs_pathat
);
1593 return handle
->fns
->read_dfs_pathat_fn(handle
,
1601 DIR *smb_vfs_call_fdopendir(struct vfs_handle_struct
*handle
,
1602 struct files_struct
*fsp
,
1604 uint32_t attributes
)
1606 VFS_FIND(fdopendir
);
1607 return handle
->fns
->fdopendir_fn(handle
, fsp
, mask
, attributes
);
1610 struct dirent
*smb_vfs_call_readdir(struct vfs_handle_struct
*handle
,
1611 struct files_struct
*dirfsp
,
1613 SMB_STRUCT_STAT
*sbuf
)
1616 return handle
->fns
->readdir_fn(handle
, dirfsp
, dirp
, sbuf
);
1619 void smb_vfs_call_seekdir(struct vfs_handle_struct
*handle
,
1620 DIR *dirp
, long offset
)
1623 handle
->fns
->seekdir_fn(handle
, dirp
, offset
);
1626 long smb_vfs_call_telldir(struct vfs_handle_struct
*handle
,
1630 return handle
->fns
->telldir_fn(handle
, dirp
);
1633 void smb_vfs_call_rewind_dir(struct vfs_handle_struct
*handle
,
1636 VFS_FIND(rewind_dir
);
1637 handle
->fns
->rewind_dir_fn(handle
, dirp
);
1640 int smb_vfs_call_mkdirat(struct vfs_handle_struct
*handle
,
1641 struct files_struct
*dirfsp
,
1642 const struct smb_filename
*smb_fname
,
1646 return handle
->fns
->mkdirat_fn(handle
,
1652 int smb_vfs_call_closedir(struct vfs_handle_struct
*handle
,
1656 return handle
->fns
->closedir_fn(handle
, dir
);
1659 int smb_vfs_call_openat(struct vfs_handle_struct
*handle
,
1660 const struct files_struct
*dirfsp
,
1661 const struct smb_filename
*smb_fname
,
1662 struct files_struct
*fsp
,
1667 return handle
->fns
->openat_fn(handle
,
1675 NTSTATUS
smb_vfs_call_create_file(struct vfs_handle_struct
*handle
,
1676 struct smb_request
*req
,
1677 struct smb_filename
*smb_fname
,
1678 uint32_t access_mask
,
1679 uint32_t share_access
,
1680 uint32_t create_disposition
,
1681 uint32_t create_options
,
1682 uint32_t file_attributes
,
1683 uint32_t oplock_request
,
1684 const struct smb2_lease
*lease
,
1685 uint64_t allocation_size
,
1686 uint32_t private_flags
,
1687 struct security_descriptor
*sd
,
1688 struct ea_list
*ea_list
,
1689 files_struct
**result
,
1691 const struct smb2_create_blobs
*in_context_blobs
,
1692 struct smb2_create_blobs
*out_context_blobs
)
1694 VFS_FIND(create_file
);
1695 return handle
->fns
->create_file_fn(
1696 handle
, req
, smb_fname
,
1697 access_mask
, share_access
, create_disposition
, create_options
,
1698 file_attributes
, oplock_request
, lease
, allocation_size
,
1699 private_flags
, sd
, ea_list
,
1700 result
, pinfo
, in_context_blobs
, out_context_blobs
);
1703 int smb_vfs_call_close(struct vfs_handle_struct
*handle
,
1704 struct files_struct
*fsp
)
1707 return handle
->fns
->close_fn(handle
, fsp
);
1710 ssize_t
smb_vfs_call_pread(struct vfs_handle_struct
*handle
,
1711 struct files_struct
*fsp
, void *data
, size_t n
,
1715 return handle
->fns
->pread_fn(handle
, fsp
, data
, n
, offset
);
1718 struct smb_vfs_call_pread_state
{
1719 ssize_t (*recv_fn
)(struct tevent_req
*req
, struct vfs_aio_state
*vfs_aio_state
);
1721 struct vfs_aio_state vfs_aio_state
;
1724 static void smb_vfs_call_pread_done(struct tevent_req
*subreq
);
1726 struct tevent_req
*smb_vfs_call_pread_send(struct vfs_handle_struct
*handle
,
1727 TALLOC_CTX
*mem_ctx
,
1728 struct tevent_context
*ev
,
1729 struct files_struct
*fsp
,
1731 size_t n
, off_t offset
)
1733 struct tevent_req
*req
, *subreq
;
1734 struct smb_vfs_call_pread_state
*state
;
1736 req
= tevent_req_create(mem_ctx
, &state
,
1737 struct smb_vfs_call_pread_state
);
1741 VFS_FIND(pread_send
);
1742 state
->recv_fn
= handle
->fns
->pread_recv_fn
;
1744 subreq
= handle
->fns
->pread_send_fn(handle
, state
, ev
, fsp
, data
, n
,
1746 if (tevent_req_nomem(subreq
, req
)) {
1747 return tevent_req_post(req
, ev
);
1749 tevent_req_set_callback(subreq
, smb_vfs_call_pread_done
, req
);
1753 static void smb_vfs_call_pread_done(struct tevent_req
*subreq
)
1755 struct tevent_req
*req
= tevent_req_callback_data(
1756 subreq
, struct tevent_req
);
1757 struct smb_vfs_call_pread_state
*state
= tevent_req_data(
1758 req
, struct smb_vfs_call_pread_state
);
1760 state
->retval
= state
->recv_fn(subreq
, &state
->vfs_aio_state
);
1761 TALLOC_FREE(subreq
);
1762 if (state
->retval
== -1) {
1763 tevent_req_error(req
, state
->vfs_aio_state
.error
);
1766 tevent_req_done(req
);
1769 ssize_t
SMB_VFS_PREAD_RECV(struct tevent_req
*req
,
1770 struct vfs_aio_state
*vfs_aio_state
)
1772 struct smb_vfs_call_pread_state
*state
= tevent_req_data(
1773 req
, struct smb_vfs_call_pread_state
);
1776 if (tevent_req_is_unix_error(req
, &vfs_aio_state
->error
)) {
1777 tevent_req_received(req
);
1780 *vfs_aio_state
= state
->vfs_aio_state
;
1781 retval
= state
->retval
;
1782 tevent_req_received(req
);
1786 ssize_t
smb_vfs_call_pwrite(struct vfs_handle_struct
*handle
,
1787 struct files_struct
*fsp
, const void *data
,
1788 size_t n
, off_t offset
)
1791 return handle
->fns
->pwrite_fn(handle
, fsp
, data
, n
, offset
);
1794 struct smb_vfs_call_pwrite_state
{
1795 ssize_t (*recv_fn
)(struct tevent_req
*req
, struct vfs_aio_state
*vfs_aio_state
);
1797 struct vfs_aio_state vfs_aio_state
;
1800 static void smb_vfs_call_pwrite_done(struct tevent_req
*subreq
);
1802 struct tevent_req
*smb_vfs_call_pwrite_send(struct vfs_handle_struct
*handle
,
1803 TALLOC_CTX
*mem_ctx
,
1804 struct tevent_context
*ev
,
1805 struct files_struct
*fsp
,
1807 size_t n
, off_t offset
)
1809 struct tevent_req
*req
, *subreq
;
1810 struct smb_vfs_call_pwrite_state
*state
;
1812 req
= tevent_req_create(mem_ctx
, &state
,
1813 struct smb_vfs_call_pwrite_state
);
1817 VFS_FIND(pwrite_send
);
1818 state
->recv_fn
= handle
->fns
->pwrite_recv_fn
;
1820 subreq
= handle
->fns
->pwrite_send_fn(handle
, state
, ev
, fsp
, data
, n
,
1822 if (tevent_req_nomem(subreq
, req
)) {
1823 return tevent_req_post(req
, ev
);
1825 tevent_req_set_callback(subreq
, smb_vfs_call_pwrite_done
, req
);
1829 static void smb_vfs_call_pwrite_done(struct tevent_req
*subreq
)
1831 struct tevent_req
*req
= tevent_req_callback_data(
1832 subreq
, struct tevent_req
);
1833 struct smb_vfs_call_pwrite_state
*state
= tevent_req_data(
1834 req
, struct smb_vfs_call_pwrite_state
);
1836 state
->retval
= state
->recv_fn(subreq
, &state
->vfs_aio_state
);
1837 TALLOC_FREE(subreq
);
1838 if (state
->retval
== -1) {
1839 tevent_req_error(req
, state
->vfs_aio_state
.error
);
1842 tevent_req_done(req
);
1845 ssize_t
SMB_VFS_PWRITE_RECV(struct tevent_req
*req
,
1846 struct vfs_aio_state
*vfs_aio_state
)
1848 struct smb_vfs_call_pwrite_state
*state
= tevent_req_data(
1849 req
, struct smb_vfs_call_pwrite_state
);
1852 if (tevent_req_is_unix_error(req
, &vfs_aio_state
->error
)) {
1853 tevent_req_received(req
);
1856 *vfs_aio_state
= state
->vfs_aio_state
;
1857 retval
= state
->retval
;
1858 tevent_req_received(req
);
1862 off_t
smb_vfs_call_lseek(struct vfs_handle_struct
*handle
,
1863 struct files_struct
*fsp
, off_t offset
,
1867 return handle
->fns
->lseek_fn(handle
, fsp
, offset
, whence
);
1870 ssize_t
smb_vfs_call_sendfile(struct vfs_handle_struct
*handle
, int tofd
,
1871 files_struct
*fromfsp
, const DATA_BLOB
*header
,
1872 off_t offset
, size_t count
)
1875 return handle
->fns
->sendfile_fn(handle
, tofd
, fromfsp
, header
, offset
,
1879 ssize_t
smb_vfs_call_recvfile(struct vfs_handle_struct
*handle
, int fromfd
,
1880 files_struct
*tofsp
, off_t offset
,
1884 return handle
->fns
->recvfile_fn(handle
, fromfd
, tofsp
, offset
, count
);
1887 int smb_vfs_call_renameat(struct vfs_handle_struct
*handle
,
1888 files_struct
*srcfsp
,
1889 const struct smb_filename
*smb_fname_src
,
1890 files_struct
*dstfsp
,
1891 const struct smb_filename
*smb_fname_dst
)
1894 return handle
->fns
->renameat_fn(handle
,
1901 struct smb_vfs_call_fsync_state
{
1902 int (*recv_fn
)(struct tevent_req
*req
, struct vfs_aio_state
*vfs_aio_state
);
1904 struct vfs_aio_state vfs_aio_state
;
1907 static void smb_vfs_call_fsync_done(struct tevent_req
*subreq
);
1909 struct tevent_req
*smb_vfs_call_fsync_send(struct vfs_handle_struct
*handle
,
1910 TALLOC_CTX
*mem_ctx
,
1911 struct tevent_context
*ev
,
1912 struct files_struct
*fsp
)
1914 struct tevent_req
*req
, *subreq
;
1915 struct smb_vfs_call_fsync_state
*state
;
1917 req
= tevent_req_create(mem_ctx
, &state
,
1918 struct smb_vfs_call_fsync_state
);
1922 VFS_FIND(fsync_send
);
1923 state
->recv_fn
= handle
->fns
->fsync_recv_fn
;
1925 subreq
= handle
->fns
->fsync_send_fn(handle
, state
, ev
, fsp
);
1926 if (tevent_req_nomem(subreq
, req
)) {
1927 return tevent_req_post(req
, ev
);
1929 tevent_req_set_callback(subreq
, smb_vfs_call_fsync_done
, req
);
1933 static void smb_vfs_call_fsync_done(struct tevent_req
*subreq
)
1935 struct tevent_req
*req
= tevent_req_callback_data(
1936 subreq
, struct tevent_req
);
1937 struct smb_vfs_call_fsync_state
*state
= tevent_req_data(
1938 req
, struct smb_vfs_call_fsync_state
);
1940 state
->retval
= state
->recv_fn(subreq
, &state
->vfs_aio_state
);
1941 TALLOC_FREE(subreq
);
1942 if (state
->retval
== -1) {
1943 tevent_req_error(req
, state
->vfs_aio_state
.error
);
1946 tevent_req_done(req
);
1949 int SMB_VFS_FSYNC_RECV(struct tevent_req
*req
, struct vfs_aio_state
*vfs_aio_state
)
1951 struct smb_vfs_call_fsync_state
*state
= tevent_req_data(
1952 req
, struct smb_vfs_call_fsync_state
);
1955 if (tevent_req_is_unix_error(req
, &vfs_aio_state
->error
)) {
1956 tevent_req_received(req
);
1959 *vfs_aio_state
= state
->vfs_aio_state
;
1960 retval
= state
->retval
;
1961 tevent_req_received(req
);
1966 * Synchronous version of fsync, built from backend
1967 * async VFS primitives. Uses a temporary sub-event
1968 * context (NOT NESTED).
1971 int smb_vfs_fsync_sync(files_struct
*fsp
)
1973 TALLOC_CTX
*frame
= talloc_stackframe();
1974 struct tevent_req
*req
= NULL
;
1975 struct vfs_aio_state aio_state
= { 0 };
1978 struct tevent_context
*ev
= samba_tevent_context_init(frame
);
1984 req
= SMB_VFS_FSYNC_SEND(talloc_tos(), ev
, fsp
);
1989 ok
= tevent_req_poll(req
, ev
);
1994 ret
= SMB_VFS_FSYNC_RECV(req
, &aio_state
);
1999 if (aio_state
.error
!= 0) {
2000 errno
= aio_state
.error
;
2005 int smb_vfs_call_stat(struct vfs_handle_struct
*handle
,
2006 struct smb_filename
*smb_fname
)
2009 return handle
->fns
->stat_fn(handle
, smb_fname
);
2012 int smb_vfs_call_fstat(struct vfs_handle_struct
*handle
,
2013 struct files_struct
*fsp
, SMB_STRUCT_STAT
*sbuf
)
2016 return handle
->fns
->fstat_fn(handle
, fsp
, sbuf
);
2019 int smb_vfs_call_lstat(struct vfs_handle_struct
*handle
,
2020 struct smb_filename
*smb_filename
)
2023 return handle
->fns
->lstat_fn(handle
, smb_filename
);
2026 uint64_t smb_vfs_call_get_alloc_size(struct vfs_handle_struct
*handle
,
2027 struct files_struct
*fsp
,
2028 const SMB_STRUCT_STAT
*sbuf
)
2030 VFS_FIND(get_alloc_size
);
2031 return handle
->fns
->get_alloc_size_fn(handle
, fsp
, sbuf
);
2034 int smb_vfs_call_unlinkat(struct vfs_handle_struct
*handle
,
2035 struct files_struct
*dirfsp
,
2036 const struct smb_filename
*smb_fname
,
2040 return handle
->fns
->unlinkat_fn(handle
,
2046 int smb_vfs_call_fchmod(struct vfs_handle_struct
*handle
,
2047 struct files_struct
*fsp
, mode_t mode
)
2050 return handle
->fns
->fchmod_fn(handle
, fsp
, mode
);
2053 int smb_vfs_call_fchown(struct vfs_handle_struct
*handle
,
2054 struct files_struct
*fsp
, uid_t uid
, gid_t gid
)
2057 return handle
->fns
->fchown_fn(handle
, fsp
, uid
, gid
);
2060 int smb_vfs_call_lchown(struct vfs_handle_struct
*handle
,
2061 const struct smb_filename
*smb_fname
,
2066 return handle
->fns
->lchown_fn(handle
, smb_fname
, uid
, gid
);
2069 int smb_vfs_call_chdir(struct vfs_handle_struct
*handle
,
2070 const struct smb_filename
*smb_fname
)
2073 return handle
->fns
->chdir_fn(handle
, smb_fname
);
2076 struct smb_filename
*smb_vfs_call_getwd(struct vfs_handle_struct
*handle
,
2080 return handle
->fns
->getwd_fn(handle
, ctx
);
2083 int smb_vfs_call_fntimes(struct vfs_handle_struct
*handle
,
2084 struct files_struct
*fsp
,
2085 struct smb_file_time
*ft
)
2088 return handle
->fns
->fntimes_fn(handle
, fsp
, ft
);
2091 int smb_vfs_call_ftruncate(struct vfs_handle_struct
*handle
,
2092 struct files_struct
*fsp
, off_t offset
)
2094 VFS_FIND(ftruncate
);
2095 return handle
->fns
->ftruncate_fn(handle
, fsp
, offset
);
2098 int smb_vfs_call_fallocate(struct vfs_handle_struct
*handle
,
2099 struct files_struct
*fsp
,
2104 VFS_FIND(fallocate
);
2105 return handle
->fns
->fallocate_fn(handle
, fsp
, mode
, offset
, len
);
2108 int smb_vfs_call_filesystem_sharemode(struct vfs_handle_struct
*handle
,
2109 struct files_struct
*fsp
,
2110 uint32_t share_mode
,
2111 uint32_t access_mask
)
2113 VFS_FIND(filesystem_sharemode
);
2114 return handle
->fns
->filesystem_sharemode_fn(handle
,
2120 int smb_vfs_call_fcntl(struct vfs_handle_struct
*handle
,
2121 struct files_struct
*fsp
, int cmd
, ...)
2128 va_start(cmd_arg
, cmd
);
2129 result
= handle
->fns
->fcntl_fn(handle
, fsp
, cmd
, cmd_arg
);
2135 int smb_vfs_call_linux_setlease(struct vfs_handle_struct
*handle
,
2136 struct files_struct
*fsp
, int leasetype
)
2138 VFS_FIND(linux_setlease
);
2139 return handle
->fns
->linux_setlease_fn(handle
, fsp
, leasetype
);
2142 int smb_vfs_call_symlinkat(struct vfs_handle_struct
*handle
,
2143 const struct smb_filename
*link_target
,
2144 struct files_struct
*dirfsp
,
2145 const struct smb_filename
*new_smb_fname
)
2147 VFS_FIND(symlinkat
);
2148 return handle
->fns
->symlinkat_fn(handle
,
2154 int smb_vfs_call_readlinkat(struct vfs_handle_struct
*handle
,
2155 const struct files_struct
*dirfsp
,
2156 const struct smb_filename
*smb_fname
,
2160 VFS_FIND(readlinkat
);
2161 return handle
->fns
->readlinkat_fn(handle
,
2168 int smb_vfs_call_linkat(struct vfs_handle_struct
*handle
,
2169 struct files_struct
*srcfsp
,
2170 const struct smb_filename
*old_smb_fname
,
2171 struct files_struct
*dstfsp
,
2172 const struct smb_filename
*new_smb_fname
,
2176 return handle
->fns
->linkat_fn(handle
,
2184 int smb_vfs_call_mknodat(struct vfs_handle_struct
*handle
,
2185 struct files_struct
*dirfsp
,
2186 const struct smb_filename
*smb_fname
,
2191 return handle
->fns
->mknodat_fn(handle
,
2198 struct smb_filename
*smb_vfs_call_realpath(struct vfs_handle_struct
*handle
,
2200 const struct smb_filename
*smb_fname
)
2203 return handle
->fns
->realpath_fn(handle
, ctx
, smb_fname
);
2206 int smb_vfs_call_fchflags(struct vfs_handle_struct
*handle
,
2207 struct files_struct
*fsp
,
2211 return handle
->fns
->fchflags_fn(handle
, fsp
, flags
);
2214 struct file_id
smb_vfs_call_file_id_create(struct vfs_handle_struct
*handle
,
2215 const SMB_STRUCT_STAT
*sbuf
)
2217 VFS_FIND(file_id_create
);
2218 return handle
->fns
->file_id_create_fn(handle
, sbuf
);
2221 uint64_t smb_vfs_call_fs_file_id(struct vfs_handle_struct
*handle
,
2222 const SMB_STRUCT_STAT
*sbuf
)
2224 VFS_FIND(fs_file_id
);
2225 return handle
->fns
->fs_file_id_fn(handle
, sbuf
);
2228 NTSTATUS
smb_vfs_call_fstreaminfo(struct vfs_handle_struct
*handle
,
2229 struct files_struct
*fsp
,
2230 TALLOC_CTX
*mem_ctx
,
2231 unsigned int *num_streams
,
2232 struct stream_struct
**streams
)
2234 VFS_FIND(fstreaminfo
);
2235 return handle
->fns
->fstreaminfo_fn(handle
, fsp
, mem_ctx
,
2236 num_streams
, streams
);
2239 int smb_vfs_call_get_real_filename(struct vfs_handle_struct
*handle
,
2240 const struct smb_filename
*path
,
2242 TALLOC_CTX
*mem_ctx
,
2245 VFS_FIND(get_real_filename
);
2246 return handle
->fns
->get_real_filename_fn(handle
, path
, name
, mem_ctx
,
2250 const char *smb_vfs_call_connectpath(struct vfs_handle_struct
*handle
,
2251 const struct smb_filename
*smb_fname
)
2253 VFS_FIND(connectpath
);
2254 return handle
->fns
->connectpath_fn(handle
, smb_fname
);
2257 bool smb_vfs_call_strict_lock_check(struct vfs_handle_struct
*handle
,
2258 struct files_struct
*fsp
,
2259 struct lock_struct
*plock
)
2261 VFS_FIND(strict_lock_check
);
2262 return handle
->fns
->strict_lock_check_fn(handle
, fsp
, plock
);
2265 NTSTATUS
smb_vfs_call_translate_name(struct vfs_handle_struct
*handle
,
2267 enum vfs_translate_direction direction
,
2268 TALLOC_CTX
*mem_ctx
,
2271 VFS_FIND(translate_name
);
2272 return handle
->fns
->translate_name_fn(handle
, name
, direction
, mem_ctx
,
2276 NTSTATUS
smb_vfs_call_parent_pathname(struct vfs_handle_struct
*handle
,
2277 TALLOC_CTX
*mem_ctx
,
2278 const struct smb_filename
*smb_fname_in
,
2279 struct smb_filename
**parent_dir_out
,
2280 struct smb_filename
**atname_out
)
2282 VFS_FIND(parent_pathname
);
2283 return handle
->fns
->parent_pathname_fn(handle
,
2290 NTSTATUS
smb_vfs_call_fsctl(struct vfs_handle_struct
*handle
,
2291 struct files_struct
*fsp
,
2295 const uint8_t *in_data
,
2298 uint32_t max_out_len
,
2302 return handle
->fns
->fsctl_fn(handle
, fsp
, ctx
, function
, req_flags
,
2303 in_data
, in_len
, out_data
, max_out_len
,
2307 NTSTATUS
smb_vfs_call_fget_dos_attributes(struct vfs_handle_struct
*handle
,
2308 struct files_struct
*fsp
,
2311 VFS_FIND(fget_dos_attributes
);
2312 return handle
->fns
->fget_dos_attributes_fn(handle
, fsp
, dosmode
);
2315 NTSTATUS
smb_vfs_call_fset_dos_attributes(struct vfs_handle_struct
*handle
,
2316 struct files_struct
*fsp
,
2319 VFS_FIND(fset_dos_attributes
);
2320 return handle
->fns
->fset_dos_attributes_fn(handle
, fsp
, dosmode
);
2323 struct tevent_req
*smb_vfs_call_offload_read_send(TALLOC_CTX
*mem_ctx
,
2324 struct tevent_context
*ev
,
2325 struct vfs_handle_struct
*handle
,
2326 struct files_struct
*fsp
,
2332 VFS_FIND(offload_read_send
);
2333 return handle
->fns
->offload_read_send_fn(mem_ctx
, ev
, handle
,
2335 ttl
, offset
, to_copy
);
2338 NTSTATUS
smb_vfs_call_offload_read_recv(struct tevent_req
*req
,
2339 struct vfs_handle_struct
*handle
,
2340 TALLOC_CTX
*mem_ctx
,
2343 DATA_BLOB
*token_blob
)
2345 VFS_FIND(offload_read_recv
);
2346 return handle
->fns
->offload_read_recv_fn(req
, handle
, mem_ctx
, flags
, xferlen
, token_blob
);
2349 struct tevent_req
*smb_vfs_call_offload_write_send(struct vfs_handle_struct
*handle
,
2350 TALLOC_CTX
*mem_ctx
,
2351 struct tevent_context
*ev
,
2354 off_t transfer_offset
,
2355 struct files_struct
*dest_fsp
,
2359 VFS_FIND(offload_write_send
);
2360 return handle
->fns
->offload_write_send_fn(handle
, mem_ctx
, ev
, fsctl
,
2361 token
, transfer_offset
,
2362 dest_fsp
, dest_off
, num
);
2365 NTSTATUS
smb_vfs_call_offload_write_recv(struct vfs_handle_struct
*handle
,
2366 struct tevent_req
*req
,
2369 VFS_FIND(offload_write_recv
);
2370 return handle
->fns
->offload_write_recv_fn(handle
, req
, copied
);
2373 struct smb_vfs_call_get_dos_attributes_state
{
2374 files_struct
*dir_fsp
;
2375 NTSTATUS (*recv_fn
)(struct tevent_req
*req
,
2376 struct vfs_aio_state
*aio_state
,
2378 struct vfs_aio_state aio_state
;
2379 uint32_t dos_attributes
;
2382 static void smb_vfs_call_get_dos_attributes_done(struct tevent_req
*subreq
);
2384 struct tevent_req
*smb_vfs_call_get_dos_attributes_send(
2385 TALLOC_CTX
*mem_ctx
,
2386 struct tevent_context
*ev
,
2387 struct vfs_handle_struct
*handle
,
2388 files_struct
*dir_fsp
,
2389 struct smb_filename
*smb_fname
)
2391 struct tevent_req
*req
= NULL
;
2392 struct smb_vfs_call_get_dos_attributes_state
*state
= NULL
;
2393 struct tevent_req
*subreq
= NULL
;
2395 req
= tevent_req_create(mem_ctx
, &state
,
2396 struct smb_vfs_call_get_dos_attributes_state
);
2401 VFS_FIND(get_dos_attributes_send
);
2403 *state
= (struct smb_vfs_call_get_dos_attributes_state
) {
2405 .recv_fn
= handle
->fns
->get_dos_attributes_recv_fn
,
2408 subreq
= handle
->fns
->get_dos_attributes_send_fn(mem_ctx
,
2413 if (tevent_req_nomem(subreq
, req
)) {
2414 return tevent_req_post(req
, ev
);
2416 tevent_req_defer_callback(req
, ev
);
2418 tevent_req_set_callback(subreq
,
2419 smb_vfs_call_get_dos_attributes_done
,
2425 static void smb_vfs_call_get_dos_attributes_done(struct tevent_req
*subreq
)
2427 struct tevent_req
*req
=
2428 tevent_req_callback_data(subreq
,
2430 struct smb_vfs_call_get_dos_attributes_state
*state
=
2431 tevent_req_data(req
,
2432 struct smb_vfs_call_get_dos_attributes_state
);
2437 * Make sure we run as the user again
2439 ok
= change_to_user_and_service_by_fsp(state
->dir_fsp
);
2442 status
= state
->recv_fn(subreq
,
2444 &state
->dos_attributes
);
2445 TALLOC_FREE(subreq
);
2446 if (tevent_req_nterror(req
, status
)) {
2450 tevent_req_done(req
);
2453 NTSTATUS
smb_vfs_call_get_dos_attributes_recv(
2454 struct tevent_req
*req
,
2455 struct vfs_aio_state
*aio_state
,
2456 uint32_t *dos_attributes
)
2458 struct smb_vfs_call_get_dos_attributes_state
*state
=
2459 tevent_req_data(req
,
2460 struct smb_vfs_call_get_dos_attributes_state
);
2463 if (tevent_req_is_nterror(req
, &status
)) {
2464 tevent_req_received(req
);
2468 *aio_state
= state
->aio_state
;
2469 *dos_attributes
= state
->dos_attributes
;
2470 tevent_req_received(req
);
2471 return NT_STATUS_OK
;
2474 NTSTATUS
smb_vfs_call_fget_compression(vfs_handle_struct
*handle
,
2475 TALLOC_CTX
*mem_ctx
,
2476 struct files_struct
*fsp
,
2477 uint16_t *_compression_fmt
)
2479 VFS_FIND(fget_compression
);
2480 return handle
->fns
->fget_compression_fn(handle
, mem_ctx
, fsp
,
2484 NTSTATUS
smb_vfs_call_set_compression(vfs_handle_struct
*handle
,
2485 TALLOC_CTX
*mem_ctx
,
2486 struct files_struct
*fsp
,
2487 uint16_t compression_fmt
)
2489 VFS_FIND(set_compression
);
2490 return handle
->fns
->set_compression_fn(handle
, mem_ctx
, fsp
,
2494 NTSTATUS
smb_vfs_call_snap_check_path(vfs_handle_struct
*handle
,
2495 TALLOC_CTX
*mem_ctx
,
2496 const char *service_path
,
2499 VFS_FIND(snap_check_path
);
2500 return handle
->fns
->snap_check_path_fn(handle
, mem_ctx
, service_path
,
2504 NTSTATUS
smb_vfs_call_snap_create(struct vfs_handle_struct
*handle
,
2505 TALLOC_CTX
*mem_ctx
,
2506 const char *base_volume
,
2512 VFS_FIND(snap_create
);
2513 return handle
->fns
->snap_create_fn(handle
, mem_ctx
, base_volume
, tstamp
,
2514 rw
, base_path
, snap_path
);
2517 NTSTATUS
smb_vfs_call_snap_delete(struct vfs_handle_struct
*handle
,
2518 TALLOC_CTX
*mem_ctx
,
2522 VFS_FIND(snap_delete
);
2523 return handle
->fns
->snap_delete_fn(handle
, mem_ctx
, base_path
,
2527 NTSTATUS
smb_vfs_call_fget_nt_acl(struct vfs_handle_struct
*handle
,
2528 struct files_struct
*fsp
,
2529 uint32_t security_info
,
2530 TALLOC_CTX
*mem_ctx
,
2531 struct security_descriptor
**ppdesc
)
2533 VFS_FIND(fget_nt_acl
);
2534 return handle
->fns
->fget_nt_acl_fn(handle
, fsp
, security_info
,
2538 NTSTATUS
smb_vfs_call_fset_nt_acl(struct vfs_handle_struct
*handle
,
2539 struct files_struct
*fsp
,
2540 uint32_t security_info_sent
,
2541 const struct security_descriptor
*psd
)
2543 VFS_FIND(fset_nt_acl
);
2544 return handle
->fns
->fset_nt_acl_fn(handle
, fsp
, security_info_sent
,
2548 NTSTATUS
smb_vfs_call_audit_file(struct vfs_handle_struct
*handle
,
2549 struct smb_filename
*file
,
2550 struct security_acl
*sacl
,
2551 uint32_t access_requested
,
2552 uint32_t access_denied
)
2554 VFS_FIND(audit_file
);
2555 return handle
->fns
->audit_file_fn(handle
,
2562 SMB_ACL_T
smb_vfs_call_sys_acl_get_fd(struct vfs_handle_struct
*handle
,
2563 struct files_struct
*fsp
,
2564 SMB_ACL_TYPE_T type
,
2565 TALLOC_CTX
*mem_ctx
)
2567 VFS_FIND(sys_acl_get_fd
);
2568 return handle
->fns
->sys_acl_get_fd_fn(handle
, fsp
, type
, mem_ctx
);
2571 int smb_vfs_call_sys_acl_blob_get_fd(struct vfs_handle_struct
*handle
,
2572 struct files_struct
*fsp
,
2573 TALLOC_CTX
*mem_ctx
,
2574 char **blob_description
,
2577 VFS_FIND(sys_acl_blob_get_fd
);
2578 return handle
->fns
->sys_acl_blob_get_fd_fn(handle
, fsp
, mem_ctx
, blob_description
, blob
);
2581 int smb_vfs_call_sys_acl_set_fd(struct vfs_handle_struct
*handle
,
2582 struct files_struct
*fsp
,
2583 SMB_ACL_TYPE_T type
,
2586 VFS_FIND(sys_acl_set_fd
);
2587 return handle
->fns
->sys_acl_set_fd_fn(handle
, fsp
, type
, theacl
);
2590 int smb_vfs_call_sys_acl_delete_def_fd(struct vfs_handle_struct
*handle
,
2591 struct files_struct
*fsp
)
2593 VFS_FIND(sys_acl_delete_def_fd
);
2594 return handle
->fns
->sys_acl_delete_def_fd_fn(handle
, fsp
);
2597 struct smb_vfs_call_getxattrat_state
{
2598 files_struct
*dir_fsp
;
2599 ssize_t (*recv_fn
)(struct tevent_req
*req
,
2600 struct vfs_aio_state
*aio_state
,
2601 TALLOC_CTX
*mem_ctx
,
2602 uint8_t **xattr_value
);
2604 uint8_t *xattr_value
;
2605 struct vfs_aio_state aio_state
;
2608 static void smb_vfs_call_getxattrat_done(struct tevent_req
*subreq
);
2610 struct tevent_req
*smb_vfs_call_getxattrat_send(
2611 TALLOC_CTX
*mem_ctx
,
2612 struct tevent_context
*ev
,
2613 struct vfs_handle_struct
*handle
,
2614 files_struct
*dir_fsp
,
2615 const struct smb_filename
*smb_fname
,
2616 const char *xattr_name
,
2619 struct tevent_req
*req
= NULL
;
2620 struct smb_vfs_call_getxattrat_state
*state
= NULL
;
2621 struct tevent_req
*subreq
= NULL
;
2623 req
= tevent_req_create(mem_ctx
, &state
,
2624 struct smb_vfs_call_getxattrat_state
);
2629 VFS_FIND(getxattrat_send
);
2631 *state
= (struct smb_vfs_call_getxattrat_state
) {
2633 .recv_fn
= handle
->fns
->getxattrat_recv_fn
,
2636 subreq
= handle
->fns
->getxattrat_send_fn(mem_ctx
,
2643 if (tevent_req_nomem(subreq
, req
)) {
2644 return tevent_req_post(req
, ev
);
2646 tevent_req_defer_callback(req
, ev
);
2648 tevent_req_set_callback(subreq
, smb_vfs_call_getxattrat_done
, req
);
2652 static void smb_vfs_call_getxattrat_done(struct tevent_req
*subreq
)
2654 struct tevent_req
*req
= tevent_req_callback_data(
2655 subreq
, struct tevent_req
);
2656 struct smb_vfs_call_getxattrat_state
*state
= tevent_req_data(
2657 req
, struct smb_vfs_call_getxattrat_state
);
2661 * Make sure we run as the user again
2663 ok
= change_to_user_and_service_by_fsp(state
->dir_fsp
);
2666 state
->retval
= state
->recv_fn(subreq
,
2669 &state
->xattr_value
);
2670 TALLOC_FREE(subreq
);
2671 if (state
->retval
== -1) {
2672 tevent_req_error(req
, state
->aio_state
.error
);
2676 tevent_req_done(req
);
2679 ssize_t
smb_vfs_call_getxattrat_recv(struct tevent_req
*req
,
2680 struct vfs_aio_state
*aio_state
,
2681 TALLOC_CTX
*mem_ctx
,
2682 uint8_t **xattr_value
)
2684 struct smb_vfs_call_getxattrat_state
*state
= tevent_req_data(
2685 req
, struct smb_vfs_call_getxattrat_state
);
2688 if (tevent_req_is_unix_error(req
, &aio_state
->error
)) {
2689 tevent_req_received(req
);
2693 *aio_state
= state
->aio_state
;
2694 xattr_size
= state
->retval
;
2695 if (xattr_value
!= NULL
) {
2696 *xattr_value
= talloc_move(mem_ctx
, &state
->xattr_value
);
2699 tevent_req_received(req
);
2703 ssize_t
smb_vfs_call_fgetxattr(struct vfs_handle_struct
*handle
,
2704 struct files_struct
*fsp
, const char *name
,
2705 void *value
, size_t size
)
2707 VFS_FIND(fgetxattr
);
2708 return handle
->fns
->fgetxattr_fn(handle
, fsp
, name
, value
, size
);
2711 ssize_t
smb_vfs_call_flistxattr(struct vfs_handle_struct
*handle
,
2712 struct files_struct
*fsp
, char *list
,
2715 VFS_FIND(flistxattr
);
2716 return handle
->fns
->flistxattr_fn(handle
, fsp
, list
, size
);
2719 int smb_vfs_call_fremovexattr(struct vfs_handle_struct
*handle
,
2720 struct files_struct
*fsp
, const char *name
)
2722 VFS_FIND(fremovexattr
);
2723 return handle
->fns
->fremovexattr_fn(handle
, fsp
, name
);
2726 int smb_vfs_call_fsetxattr(struct vfs_handle_struct
*handle
,
2727 struct files_struct
*fsp
, const char *name
,
2728 const void *value
, size_t size
, int flags
)
2730 VFS_FIND(fsetxattr
);
2731 return handle
->fns
->fsetxattr_fn(handle
, fsp
, name
, value
, size
, flags
);
2734 bool smb_vfs_call_aio_force(struct vfs_handle_struct
*handle
,
2735 struct files_struct
*fsp
)
2737 VFS_FIND(aio_force
);
2738 return handle
->fns
->aio_force_fn(handle
, fsp
);
2741 NTSTATUS
smb_vfs_call_durable_cookie(struct vfs_handle_struct
*handle
,
2742 struct files_struct
*fsp
,
2743 TALLOC_CTX
*mem_ctx
,
2746 VFS_FIND(durable_cookie
);
2747 return handle
->fns
->durable_cookie_fn(handle
, fsp
, mem_ctx
, cookie
);
2750 NTSTATUS
smb_vfs_call_durable_disconnect(struct vfs_handle_struct
*handle
,
2751 struct files_struct
*fsp
,
2752 const DATA_BLOB old_cookie
,
2753 TALLOC_CTX
*mem_ctx
,
2754 DATA_BLOB
*new_cookie
)
2756 VFS_FIND(durable_disconnect
);
2757 return handle
->fns
->durable_disconnect_fn(handle
, fsp
, old_cookie
,
2758 mem_ctx
, new_cookie
);
2761 NTSTATUS
smb_vfs_call_durable_reconnect(struct vfs_handle_struct
*handle
,
2762 struct smb_request
*smb1req
,
2763 struct smbXsrv_open
*op
,
2764 const DATA_BLOB old_cookie
,
2765 TALLOC_CTX
*mem_ctx
,
2766 struct files_struct
**fsp
,
2767 DATA_BLOB
*new_cookie
)
2769 VFS_FIND(durable_reconnect
);
2770 return handle
->fns
->durable_reconnect_fn(handle
, smb1req
, op
,
2771 old_cookie
, mem_ctx
, fsp
,
2775 NTSTATUS
smb_vfs_call_freaddir_attr(struct vfs_handle_struct
*handle
,
2776 struct files_struct
*fsp
,
2777 TALLOC_CTX
*mem_ctx
,
2778 struct readdir_attr_data
**attr_data
)
2780 VFS_FIND(freaddir_attr
);
2781 return handle
->fns
->freaddir_attr_fn(handle
,