2 * shadow_copy2: a shadow copy module (second implementation)
4 * Copyright (C) Andrew Tridgell 2007 (portions taken from shadow_copy2)
5 * Copyright (C) Ed Plese 2009
6 * Copyright (C) Volker Lendecke 2011
7 * Copyright (C) Christian Ambach 2011
8 * Copyright (C) Michael Adam 2013
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 2 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, write to the Free Software
22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 * This is a second implemetation of a shadow copy module for exposing
27 * file system snapshots to windows clients as shadow copies.
29 * See the manual page for documentation.
33 #include "system/filesys.h"
34 #include "include/ntioctl.h"
35 #include <ccan/hash/hash.h>
38 struct shadow_copy2_config
{
43 bool snapdirseverywhere
;
44 bool crossmountpoints
;
47 bool snapdir_absolute
;
50 char *rel_connectpath
; /* share root, relative to the basedir */
51 char *snapshot_basepath
; /* the absolute version of snapdir */
54 static bool shadow_copy2_find_slashes(TALLOC_CTX
*mem_ctx
, const char *str
,
56 unsigned *pnum_offsets
)
65 while ((p
= strchr(p
, '/')) != NULL
) {
70 offsets
= talloc_array(mem_ctx
, size_t, num_offsets
);
71 if (offsets
== NULL
) {
77 while ((p
= strchr(p
, '/')) != NULL
) {
78 offsets
[num_offsets
] = p
-str
;
84 *pnum_offsets
= num_offsets
;
89 * Given a timstamp, build the posix level GTM-tag string
90 * based on the configurable format.
92 static size_t shadow_copy2_posix_gmt_string(struct vfs_handle_struct
*handle
,
94 char *snaptime_string
,
99 struct shadow_copy2_config
*config
;
101 SMB_VFS_HANDLE_GET_DATA(handle
, config
, struct shadow_copy2_config
,
104 if (config
->use_sscanf
) {
105 snaptime_len
= snprintf(snaptime_string
,
108 (unsigned long)snapshot
);
109 if (snaptime_len
<= 0) {
110 DEBUG(10, ("snprintf failed\n"));
114 if (config
->use_localtime
) {
115 if (localtime_r(&snapshot
, &snap_tm
) == 0) {
116 DEBUG(10, ("gmtime_r failed\n"));
120 if (gmtime_r(&snapshot
, &snap_tm
) == 0) {
121 DEBUG(10, ("gmtime_r failed\n"));
125 snaptime_len
= strftime(snaptime_string
,
129 if (snaptime_len
== 0) {
130 DEBUG(10, ("strftime failed\n"));
139 * Given a timstamp, build the string to insert into a path
140 * as a path component for creating the local path to the
141 * snapshot at the given timestamp of the input path.
143 * In the case of a parallel snapdir (specified with an
144 * absolute path), this is the inital portion of the
145 * local path of any snapshot file. The complete path is
146 * obtained by appending the portion of the file's path
147 * below the share root's mountpoint.
149 static char *shadow_copy2_insert_string(TALLOC_CTX
*mem_ctx
,
150 struct vfs_handle_struct
*handle
,
153 fstring snaptime_string
;
154 size_t snaptime_len
= 0;
156 struct shadow_copy2_config
*config
;
158 SMB_VFS_HANDLE_GET_DATA(handle
, config
, struct shadow_copy2_config
,
161 snaptime_len
= shadow_copy2_posix_gmt_string(handle
,
164 sizeof(snaptime_string
));
165 if (snaptime_len
<= 0) {
169 if (config
->snapdir_absolute
) {
170 result
= talloc_asprintf(mem_ctx
, "%s/%s",
171 config
->snapdir
, snaptime_string
);
173 result
= talloc_asprintf(mem_ctx
, "/%s/%s",
174 config
->snapdir
, snaptime_string
);
176 if (result
== NULL
) {
177 DEBUG(1, (__location__
" talloc_asprintf failed\n"));
184 * Build the posix snapshot path for the connection
185 * at the given timestamp, i.e. the absolute posix path
186 * that contains the snapshot for this file system.
188 * This only applies to classical case, i.e. not
189 * to the "snapdirseverywhere" mode.
191 static char *shadow_copy2_snapshot_path(TALLOC_CTX
*mem_ctx
,
192 struct vfs_handle_struct
*handle
,
195 fstring snaptime_string
;
196 size_t snaptime_len
= 0;
198 struct shadow_copy2_config
*config
;
200 SMB_VFS_HANDLE_GET_DATA(handle
, config
, struct shadow_copy2_config
,
203 snaptime_len
= shadow_copy2_posix_gmt_string(handle
,
206 sizeof(snaptime_string
));
207 if (snaptime_len
<= 0) {
211 result
= talloc_asprintf(mem_ctx
, "%s/%s",
212 config
->snapshot_basepath
, snaptime_string
);
213 if (result
== NULL
) {
214 DEBUG(1, (__location__
" talloc_asprintf failed\n"));
221 * Strip a snapshot component from an filename as
222 * handed in via the smb layer.
223 * Returns the parsed timestamp and the stripped filename.
225 static bool shadow_copy2_strip_snapshot(TALLOC_CTX
*mem_ctx
,
226 struct vfs_handle_struct
*handle
,
236 size_t rest_len
, dst_len
;
237 struct shadow_copy2_config
*config
;
239 SMB_VFS_HANDLE_GET_DATA(handle
, config
, struct shadow_copy2_config
,
242 DEBUG(10, (__location__
": enter path '%s'\n", name
));
244 p
= strstr_m(name
, "@GMT-");
248 if ((p
> name
) && (p
[-1] != '/')) {
249 /* the GMT-token does not start a path-component */
252 q
= strptime(p
, GMT_FORMAT
, &tm
);
257 timestamp
= timegm(&tm
);
258 if (timestamp
== (time_t)-1) {
261 if ((p
== name
) && (q
[0] == '\0')) {
262 /* the name consists of only the GMT token */
263 if (pstripped
!= NULL
) {
264 stripped
= talloc_strdup(mem_ctx
, "");
265 if (stripped
== NULL
) {
268 *pstripped
= stripped
;
270 *ptimestamp
= timestamp
;
275 * The GMT token is either at the end of the path
276 * or it is not a complete path component, i.e. the
277 * path component continues after the gmt-token.
279 * TODO: Is this correct? Or would the GMT tag as the
280 * last component be a valid input?
286 rest_len
= strlen(q
);
287 dst_len
= (p
-name
) + rest_len
;
289 if (config
->snapdirseverywhere
) {
292 insert
= shadow_copy2_insert_string(talloc_tos(), handle
,
294 if (insert
== NULL
) {
299 DEBUG(10, (__location__
": snapdirseverywhere mode.\n"
301 "insert string '%s'\n", name
, insert
));
303 have_insert
= (strstr(name
, insert
+1) != NULL
);
305 DEBUG(10, (__location__
": insert string '%s' found in "
306 "path '%s' found in snapdirseverywhere mode "
307 "==> already converted\n", insert
, name
));
316 snapshot_path
= shadow_copy2_snapshot_path(talloc_tos(),
319 if (snapshot_path
== NULL
) {
324 DEBUG(10, (__location__
" path: '%s'.\n"
325 "snapshot path: '%s'\n", name
, snapshot_path
));
327 s
= strstr(name
, snapshot_path
);
330 * this starts with "snapshot_basepath/GMT-Token"
331 * so it is already a converted absolute
332 * path. Don't process further.
334 DEBUG(10, (__location__
": path '%s' starts with "
335 "snapshot path '%s' (not in "
336 "snapdirseverywhere mode) ==> "
337 "already converted\n", name
, snapshot_path
));
338 talloc_free(snapshot_path
);
341 talloc_free(snapshot_path
);
344 if (pstripped
!= NULL
) {
345 stripped
= talloc_array(mem_ctx
, char, dst_len
+1);
346 if (stripped
== NULL
) {
351 memcpy(stripped
, name
, p
-name
);
354 memcpy(stripped
+ (p
-name
), q
, rest_len
);
356 stripped
[dst_len
] = '\0';
357 *pstripped
= stripped
;
359 *ptimestamp
= timestamp
;
366 static char *shadow_copy2_find_mount_point(TALLOC_CTX
*mem_ctx
,
367 vfs_handle_struct
*handle
)
369 char *path
= talloc_strdup(mem_ctx
, handle
->conn
->connectpath
);
374 if (stat(path
, &st
) != 0) {
381 while ((p
= strrchr(path
, '/')) && p
> path
) {
383 if (stat(path
, &st
) != 0) {
387 if (st
.st_dev
!= dev
) {
397 * Convert from a name as handed in via the SMB layer
398 * and a timestamp into the local path of the snapshot
399 * of the provided file at the provided time.
401 static char *shadow_copy2_convert(TALLOC_CTX
*mem_ctx
,
402 struct vfs_handle_struct
*handle
,
403 const char *name
, time_t timestamp
)
405 struct smb_filename converted_fname
;
407 size_t *slashes
= NULL
;
408 unsigned num_slashes
;
412 char *converted
= NULL
;
416 struct shadow_copy2_config
*config
;
418 SMB_VFS_HANDLE_GET_DATA(handle
, config
, struct shadow_copy2_config
,
421 DEBUG(10, ("converting '%s'\n", name
));
423 if (!config
->snapdirseverywhere
) {
427 snapshot_path
= shadow_copy2_snapshot_path(talloc_tos(),
430 if (snapshot_path
== NULL
) {
434 if (config
->rel_connectpath
== NULL
) {
435 converted
= talloc_asprintf(mem_ctx
, "%s/%s",
436 snapshot_path
, name
);
438 converted
= talloc_asprintf(mem_ctx
, "%s/%s/%s",
440 config
->rel_connectpath
,
443 if (converted
== NULL
) {
447 ZERO_STRUCT(converted_fname
);
448 converted_fname
.base_name
= converted
;
450 ret
= SMB_VFS_NEXT_LSTAT(handle
, &converted_fname
);
451 DEBUG(10, ("Trying[not snapdirseverywhere] %s: %d (%s)\n",
453 ret
, ret
== 0 ? "ok" : strerror(errno
)));
455 DEBUG(10, ("Found %s\n", converted
));
463 /* never reached ... */
466 path
= talloc_asprintf(mem_ctx
, "%s/%s", handle
->conn
->connectpath
,
472 pathlen
= talloc_get_size(path
)-1;
474 if (!shadow_copy2_find_slashes(talloc_tos(), path
,
475 &slashes
, &num_slashes
)) {
479 insert
= shadow_copy2_insert_string(talloc_tos(), handle
, timestamp
);
480 if (insert
== NULL
) {
483 insertlen
= talloc_get_size(insert
)-1;
485 converted
= talloc_zero_array(mem_ctx
, char, pathlen
+ insertlen
+ 1);
486 if (converted
== NULL
) {
490 if (path
[pathlen
-1] != '/') {
492 * Append a fake slash to find the snapshot root
495 tmp
= talloc_realloc(talloc_tos(), slashes
,
496 size_t, num_slashes
+1);
501 slashes
[num_slashes
] = pathlen
;
507 if (!config
->crossmountpoints
) {
508 min_offset
= strlen(config
->mount_point
);
511 memcpy(converted
, path
, pathlen
+1);
512 converted
[pathlen
+insertlen
] = '\0';
514 ZERO_STRUCT(converted_fname
);
515 converted_fname
.base_name
= converted
;
517 for (i
= num_slashes
-1; i
>=0; i
--) {
523 if (offset
< min_offset
) {
528 memcpy(converted
+offset
, insert
, insertlen
);
531 memcpy(converted
+offset
, path
+ slashes
[i
],
532 pathlen
- slashes
[i
]);
534 ret
= SMB_VFS_NEXT_LSTAT(handle
, &converted_fname
);
536 DEBUG(10, ("Trying[snapdirseverywhere] %s: %d (%s)\n",
538 ret
, ret
== 0 ? "ok" : strerror(errno
)));
543 if (errno
== ENOTDIR
) {
545 * This is a valid condition: We appended the
546 * .snaphots/@GMT.. to a file name. Just try
547 * with the upper levels.
551 if (errno
!= ENOENT
) {
552 /* Other problem than "not found" */
561 DEBUG(10, ("Found %s\n", converted
));
569 TALLOC_FREE(converted
);
571 TALLOC_FREE(slashes
);
578 modify a sbuf return to ensure that inodes in the shadow directory
579 are different from those in the main directory
581 static void convert_sbuf(vfs_handle_struct
*handle
, const char *fname
,
582 SMB_STRUCT_STAT
*sbuf
)
584 struct shadow_copy2_config
*config
;
586 SMB_VFS_HANDLE_GET_DATA(handle
, config
, struct shadow_copy2_config
,
589 if (config
->fixinodes
) {
590 /* some snapshot systems, like GPFS, return the name
591 device:inode for the snapshot files as the current
592 files. That breaks the 'restore' button in the shadow copy
593 GUI, as the client gets a sharing violation.
595 This is a crude way of allowing both files to be
596 open at once. It has a slight chance of inode
597 number collision, but I can't see a better approach
598 without significant VFS changes
602 shash
= hash(fname
, strlen(fname
), 0) & 0xFF000000;
606 sbuf
->st_ex_ino
^= shash
;
610 static DIR *shadow_copy2_opendir(vfs_handle_struct
*handle
,
621 if (!shadow_copy2_strip_snapshot(talloc_tos(), handle
, fname
,
622 ×tamp
, &stripped
)) {
625 if (timestamp
== 0) {
626 return SMB_VFS_NEXT_OPENDIR(handle
, fname
, mask
, attr
);
628 conv
= shadow_copy2_convert(talloc_tos(), handle
, stripped
, timestamp
);
629 TALLOC_FREE(stripped
);
633 ret
= SMB_VFS_NEXT_OPENDIR(handle
, conv
, mask
, attr
);
640 static int shadow_copy2_rename(vfs_handle_struct
*handle
,
641 const struct smb_filename
*smb_fname_src
,
642 const struct smb_filename
*smb_fname_dst
)
644 time_t timestamp_src
, timestamp_dst
;
646 if (!shadow_copy2_strip_snapshot(talloc_tos(), handle
,
647 smb_fname_src
->base_name
,
648 ×tamp_src
, NULL
)) {
651 if (!shadow_copy2_strip_snapshot(talloc_tos(), handle
,
652 smb_fname_dst
->base_name
,
653 ×tamp_dst
, NULL
)) {
656 if (timestamp_src
!= 0) {
660 if (timestamp_dst
!= 0) {
664 return SMB_VFS_NEXT_RENAME(handle
, smb_fname_src
, smb_fname_dst
);
667 static int shadow_copy2_symlink(vfs_handle_struct
*handle
,
668 const char *oldname
, const char *newname
)
670 time_t timestamp_old
, timestamp_new
;
672 if (!shadow_copy2_strip_snapshot(talloc_tos(), handle
, oldname
,
673 ×tamp_old
, NULL
)) {
676 if (!shadow_copy2_strip_snapshot(talloc_tos(), handle
, newname
,
677 ×tamp_new
, NULL
)) {
680 if ((timestamp_old
!= 0) || (timestamp_new
!= 0)) {
684 return SMB_VFS_NEXT_SYMLINK(handle
, oldname
, newname
);
687 static int shadow_copy2_link(vfs_handle_struct
*handle
,
688 const char *oldname
, const char *newname
)
690 time_t timestamp_old
, timestamp_new
;
692 if (!shadow_copy2_strip_snapshot(talloc_tos(), handle
, oldname
,
693 ×tamp_old
, NULL
)) {
696 if (!shadow_copy2_strip_snapshot(talloc_tos(), handle
, newname
,
697 ×tamp_new
, NULL
)) {
700 if ((timestamp_old
!= 0) || (timestamp_new
!= 0)) {
704 return SMB_VFS_NEXT_LINK(handle
, oldname
, newname
);
707 static int shadow_copy2_stat(vfs_handle_struct
*handle
,
708 struct smb_filename
*smb_fname
)
711 char *stripped
, *tmp
;
712 int ret
, saved_errno
;
714 if (!shadow_copy2_strip_snapshot(talloc_tos(), handle
,
715 smb_fname
->base_name
,
716 ×tamp
, &stripped
)) {
719 if (timestamp
== 0) {
720 return SMB_VFS_NEXT_STAT(handle
, smb_fname
);
723 tmp
= smb_fname
->base_name
;
724 smb_fname
->base_name
= shadow_copy2_convert(
725 talloc_tos(), handle
, stripped
, timestamp
);
726 TALLOC_FREE(stripped
);
728 if (smb_fname
->base_name
== NULL
) {
729 smb_fname
->base_name
= tmp
;
733 ret
= SMB_VFS_NEXT_STAT(handle
, smb_fname
);
736 TALLOC_FREE(smb_fname
->base_name
);
737 smb_fname
->base_name
= tmp
;
740 convert_sbuf(handle
, smb_fname
->base_name
, &smb_fname
->st
);
746 static int shadow_copy2_lstat(vfs_handle_struct
*handle
,
747 struct smb_filename
*smb_fname
)
750 char *stripped
, *tmp
;
751 int ret
, saved_errno
;
753 if (!shadow_copy2_strip_snapshot(talloc_tos(), handle
,
754 smb_fname
->base_name
,
755 ×tamp
, &stripped
)) {
758 if (timestamp
== 0) {
759 return SMB_VFS_NEXT_LSTAT(handle
, smb_fname
);
762 tmp
= smb_fname
->base_name
;
763 smb_fname
->base_name
= shadow_copy2_convert(
764 talloc_tos(), handle
, stripped
, timestamp
);
765 TALLOC_FREE(stripped
);
767 if (smb_fname
->base_name
== NULL
) {
768 smb_fname
->base_name
= tmp
;
772 ret
= SMB_VFS_NEXT_LSTAT(handle
, smb_fname
);
775 TALLOC_FREE(smb_fname
->base_name
);
776 smb_fname
->base_name
= tmp
;
779 convert_sbuf(handle
, smb_fname
->base_name
, &smb_fname
->st
);
785 static int shadow_copy2_fstat(vfs_handle_struct
*handle
, files_struct
*fsp
,
786 SMB_STRUCT_STAT
*sbuf
)
791 ret
= SMB_VFS_NEXT_FSTAT(handle
, fsp
, sbuf
);
795 if (!shadow_copy2_strip_snapshot(talloc_tos(), handle
,
796 fsp
->fsp_name
->base_name
,
800 if (timestamp
!= 0) {
801 convert_sbuf(handle
, fsp
->fsp_name
->base_name
, sbuf
);
806 static int shadow_copy2_open(vfs_handle_struct
*handle
,
807 struct smb_filename
*smb_fname
, files_struct
*fsp
,
808 int flags
, mode_t mode
)
811 char *stripped
, *tmp
;
812 int ret
, saved_errno
;
814 if (!shadow_copy2_strip_snapshot(talloc_tos(), handle
,
815 smb_fname
->base_name
,
816 ×tamp
, &stripped
)) {
819 if (timestamp
== 0) {
820 return SMB_VFS_NEXT_OPEN(handle
, smb_fname
, fsp
, flags
, mode
);
823 tmp
= smb_fname
->base_name
;
824 smb_fname
->base_name
= shadow_copy2_convert(
825 talloc_tos(), handle
, stripped
, timestamp
);
826 TALLOC_FREE(stripped
);
828 if (smb_fname
->base_name
== NULL
) {
829 smb_fname
->base_name
= tmp
;
833 ret
= SMB_VFS_NEXT_OPEN(handle
, smb_fname
, fsp
, flags
, mode
);
836 TALLOC_FREE(smb_fname
->base_name
);
837 smb_fname
->base_name
= tmp
;
843 static int shadow_copy2_unlink(vfs_handle_struct
*handle
,
844 const struct smb_filename
*smb_fname
)
848 int ret
, saved_errno
;
849 struct smb_filename
*conv
;
851 if (!shadow_copy2_strip_snapshot(talloc_tos(), handle
,
852 smb_fname
->base_name
,
853 ×tamp
, &stripped
)) {
856 if (timestamp
== 0) {
857 return SMB_VFS_NEXT_UNLINK(handle
, smb_fname
);
859 conv
= cp_smb_filename(talloc_tos(), smb_fname
);
864 conv
->base_name
= shadow_copy2_convert(
865 conv
, handle
, stripped
, timestamp
);
866 TALLOC_FREE(stripped
);
867 if (conv
->base_name
== NULL
) {
870 ret
= SMB_VFS_NEXT_UNLINK(handle
, conv
);
877 static int shadow_copy2_chmod(vfs_handle_struct
*handle
, const char *fname
,
882 int ret
, saved_errno
;
885 if (!shadow_copy2_strip_snapshot(talloc_tos(), handle
, fname
,
886 ×tamp
, &stripped
)) {
889 if (timestamp
== 0) {
890 return SMB_VFS_NEXT_CHMOD(handle
, fname
, mode
);
892 conv
= shadow_copy2_convert(talloc_tos(), handle
, stripped
, timestamp
);
893 TALLOC_FREE(stripped
);
897 ret
= SMB_VFS_NEXT_CHMOD(handle
, conv
, mode
);
904 static int shadow_copy2_chown(vfs_handle_struct
*handle
, const char *fname
,
905 uid_t uid
, gid_t gid
)
909 int ret
, saved_errno
;
912 if (!shadow_copy2_strip_snapshot(talloc_tos(), handle
, fname
,
913 ×tamp
, &stripped
)) {
916 if (timestamp
== 0) {
917 return SMB_VFS_NEXT_CHOWN(handle
, fname
, uid
, gid
);
919 conv
= shadow_copy2_convert(talloc_tos(), handle
, stripped
, timestamp
);
920 TALLOC_FREE(stripped
);
924 ret
= SMB_VFS_NEXT_CHOWN(handle
, conv
, uid
, gid
);
931 static int shadow_copy2_chdir(vfs_handle_struct
*handle
,
936 int ret
, saved_errno
;
939 if (!shadow_copy2_strip_snapshot(talloc_tos(), handle
, fname
,
940 ×tamp
, &stripped
)) {
943 if (timestamp
== 0) {
944 return SMB_VFS_NEXT_CHDIR(handle
, fname
);
946 conv
= shadow_copy2_convert(talloc_tos(), handle
, stripped
, timestamp
);
947 TALLOC_FREE(stripped
);
951 ret
= SMB_VFS_NEXT_CHDIR(handle
, conv
);
958 static int shadow_copy2_ntimes(vfs_handle_struct
*handle
,
959 const struct smb_filename
*smb_fname
,
960 struct smb_file_time
*ft
)
964 int ret
, saved_errno
;
965 struct smb_filename
*conv
;
967 if (!shadow_copy2_strip_snapshot(talloc_tos(), handle
,
968 smb_fname
->base_name
,
969 ×tamp
, &stripped
)) {
972 if (timestamp
== 0) {
973 return SMB_VFS_NEXT_NTIMES(handle
, smb_fname
, ft
);
975 conv
= cp_smb_filename(talloc_tos(), smb_fname
);
980 conv
->base_name
= shadow_copy2_convert(
981 conv
, handle
, stripped
, timestamp
);
982 TALLOC_FREE(stripped
);
983 if (conv
->base_name
== NULL
) {
986 ret
= SMB_VFS_NEXT_NTIMES(handle
, conv
, ft
);
993 static int shadow_copy2_readlink(vfs_handle_struct
*handle
,
994 const char *fname
, char *buf
, size_t bufsiz
)
998 int ret
, saved_errno
;
1001 if (!shadow_copy2_strip_snapshot(talloc_tos(), handle
, fname
,
1002 ×tamp
, &stripped
)) {
1005 if (timestamp
== 0) {
1006 return SMB_VFS_NEXT_READLINK(handle
, fname
, buf
, bufsiz
);
1008 conv
= shadow_copy2_convert(talloc_tos(), handle
, stripped
, timestamp
);
1009 TALLOC_FREE(stripped
);
1013 ret
= SMB_VFS_NEXT_READLINK(handle
, conv
, buf
, bufsiz
);
1014 saved_errno
= errno
;
1016 errno
= saved_errno
;
1020 static int shadow_copy2_mknod(vfs_handle_struct
*handle
,
1021 const char *fname
, mode_t mode
, SMB_DEV_T dev
)
1025 int ret
, saved_errno
;
1028 if (!shadow_copy2_strip_snapshot(talloc_tos(), handle
, fname
,
1029 ×tamp
, &stripped
)) {
1032 if (timestamp
== 0) {
1033 return SMB_VFS_NEXT_MKNOD(handle
, fname
, mode
, dev
);
1035 conv
= shadow_copy2_convert(talloc_tos(), handle
, stripped
, timestamp
);
1036 TALLOC_FREE(stripped
);
1040 ret
= SMB_VFS_NEXT_MKNOD(handle
, conv
, mode
, dev
);
1041 saved_errno
= errno
;
1043 errno
= saved_errno
;
1047 static char *shadow_copy2_realpath(vfs_handle_struct
*handle
,
1051 char *stripped
= NULL
;
1053 char *result
= NULL
;
1054 char *inserted
= NULL
;
1055 char *inserted_to
, *inserted_end
;
1058 if (!shadow_copy2_strip_snapshot(talloc_tos(), handle
, fname
,
1059 ×tamp
, &stripped
)) {
1062 if (timestamp
== 0) {
1063 return SMB_VFS_NEXT_REALPATH(handle
, fname
);
1066 tmp
= shadow_copy2_convert(talloc_tos(), handle
, stripped
, timestamp
);
1071 result
= SMB_VFS_NEXT_REALPATH(handle
, tmp
);
1072 if (result
== NULL
) {
1077 * Take away what we've inserted. This removes the @GMT-thingy
1078 * completely, but will give a path under the share root.
1080 inserted
= shadow_copy2_insert_string(talloc_tos(), handle
, timestamp
);
1081 if (inserted
== NULL
) {
1084 inserted_to
= strstr_m(result
, inserted
);
1085 if (inserted_to
== NULL
) {
1086 DEBUG(2, ("SMB_VFS_NEXT_REALPATH removed %s\n", inserted
));
1089 inserted_end
= inserted_to
+ talloc_get_size(inserted
) - 1;
1090 memmove(inserted_to
, inserted_end
, strlen(inserted_end
)+1);
1093 saved_errno
= errno
;
1094 TALLOC_FREE(inserted
);
1096 TALLOC_FREE(stripped
);
1097 errno
= saved_errno
;
1102 * Check whether a given directory contains a
1103 * snapshot directory as direct subdirectory.
1104 * If yes, return the path of the snapshot-subdir,
1105 * otherwise return NULL.
1107 static char *have_snapdir(struct vfs_handle_struct
*handle
,
1110 struct smb_filename smb_fname
;
1112 struct shadow_copy2_config
*config
;
1114 SMB_VFS_HANDLE_GET_DATA(handle
, config
, struct shadow_copy2_config
,
1117 ZERO_STRUCT(smb_fname
);
1118 smb_fname
.base_name
= talloc_asprintf(talloc_tos(), "%s/%s",
1119 path
, config
->snapdir
);
1120 if (smb_fname
.base_name
== NULL
) {
1124 ret
= SMB_VFS_NEXT_STAT(handle
, &smb_fname
);
1125 if ((ret
== 0) && (S_ISDIR(smb_fname
.st
.st_ex_mode
))) {
1126 return smb_fname
.base_name
;
1128 TALLOC_FREE(smb_fname
.base_name
);
1133 * Find the snapshot directory (if any) for the given
1134 * filename (which is relative to the share).
1136 static const char *shadow_copy2_find_snapdir(TALLOC_CTX
*mem_ctx
,
1137 struct vfs_handle_struct
*handle
,
1138 struct smb_filename
*smb_fname
)
1141 const char *snapdir
;
1142 struct shadow_copy2_config
*config
;
1144 SMB_VFS_HANDLE_GET_DATA(handle
, config
, struct shadow_copy2_config
,
1148 * If the non-snapdisrseverywhere mode, we should not search!
1150 if (!config
->snapdirseverywhere
) {
1151 return config
->snapshot_basepath
;
1154 path
= talloc_asprintf(mem_ctx
, "%s/%s",
1155 handle
->conn
->connectpath
,
1156 smb_fname
->base_name
);
1161 snapdir
= have_snapdir(handle
, path
);
1162 if (snapdir
!= NULL
) {
1167 while ((p
= strrchr(path
, '/')) && (p
> path
)) {
1171 snapdir
= have_snapdir(handle
, path
);
1172 if (snapdir
!= NULL
) {
1181 static bool shadow_copy2_snapshot_to_gmt(vfs_handle_struct
*handle
,
1183 char *gmt
, size_t gmt_len
)
1185 struct tm timestamp
;
1187 unsigned long int timestamp_long
;
1189 struct shadow_copy2_config
*config
;
1191 SMB_VFS_HANDLE_GET_DATA(handle
, config
, struct shadow_copy2_config
,
1194 fmt
= config
->gmt_format
;
1196 ZERO_STRUCT(timestamp
);
1197 if (config
->use_sscanf
) {
1198 if (sscanf(name
, fmt
, ×tamp_long
) != 1) {
1199 DEBUG(10, ("shadow_copy2_snapshot_to_gmt: "
1200 "no sscanf match %s: %s\n",
1204 timestamp_t
= timestamp_long
;
1205 gmtime_r(×tamp_t
, ×tamp
);
1207 if (strptime(name
, fmt
, ×tamp
) == NULL
) {
1208 DEBUG(10, ("shadow_copy2_snapshot_to_gmt: "
1209 "no match %s: %s\n",
1213 DEBUG(10, ("shadow_copy2_snapshot_to_gmt: match %s: %s\n",
1216 if (config
->use_localtime
) {
1217 timestamp
.tm_isdst
= -1;
1218 timestamp_t
= mktime(×tamp
);
1219 gmtime_r(×tamp_t
, ×tamp
);
1223 strftime(gmt
, gmt_len
, GMT_FORMAT
, ×tamp
);
1227 static int shadow_copy2_label_cmp_asc(const void *x
, const void *y
)
1229 return strncmp((const char *)x
, (const char *)y
, sizeof(SHADOW_COPY_LABEL
));
1232 static int shadow_copy2_label_cmp_desc(const void *x
, const void *y
)
1234 return -strncmp((const char *)x
, (const char *)y
, sizeof(SHADOW_COPY_LABEL
));
1238 sort the shadow copy data in ascending or descending order
1240 static void shadow_copy2_sort_data(vfs_handle_struct
*handle
,
1241 struct shadow_copy_data
*shadow_copy2_data
)
1243 int (*cmpfunc
)(const void *, const void *);
1245 struct shadow_copy2_config
*config
;
1247 SMB_VFS_HANDLE_GET_DATA(handle
, config
, struct shadow_copy2_config
,
1250 sort
= config
->sort_order
;
1255 if (strcmp(sort
, "asc") == 0) {
1256 cmpfunc
= shadow_copy2_label_cmp_asc
;
1257 } else if (strcmp(sort
, "desc") == 0) {
1258 cmpfunc
= shadow_copy2_label_cmp_desc
;
1263 if (shadow_copy2_data
&& shadow_copy2_data
->num_volumes
> 0 &&
1264 shadow_copy2_data
->labels
)
1266 TYPESAFE_QSORT(shadow_copy2_data
->labels
,
1267 shadow_copy2_data
->num_volumes
,
1272 static int shadow_copy2_get_shadow_copy_data(
1273 vfs_handle_struct
*handle
, files_struct
*fsp
,
1274 struct shadow_copy_data
*shadow_copy2_data
,
1278 const char *snapdir
;
1280 TALLOC_CTX
*tmp_ctx
= talloc_stackframe();
1282 snapdir
= shadow_copy2_find_snapdir(tmp_ctx
, handle
, fsp
->fsp_name
);
1283 if (snapdir
== NULL
) {
1284 DEBUG(0,("shadow:snapdir not found for %s in get_shadow_copy_data\n",
1285 handle
->conn
->connectpath
));
1287 talloc_free(tmp_ctx
);
1291 p
= SMB_VFS_NEXT_OPENDIR(handle
, snapdir
, NULL
, 0);
1294 DEBUG(2,("shadow_copy2: SMB_VFS_NEXT_OPENDIR() failed for '%s'"
1295 " - %s\n", snapdir
, strerror(errno
)));
1296 talloc_free(tmp_ctx
);
1301 shadow_copy2_data
->num_volumes
= 0;
1302 shadow_copy2_data
->labels
= NULL
;
1304 while ((d
= SMB_VFS_NEXT_READDIR(handle
, p
, NULL
))) {
1305 char snapshot
[GMT_NAME_LEN
+1];
1306 SHADOW_COPY_LABEL
*tlabels
;
1309 * ignore names not of the right form in the snapshot
1312 if (!shadow_copy2_snapshot_to_gmt(
1314 snapshot
, sizeof(snapshot
))) {
1316 DEBUG(6, ("shadow_copy2_get_shadow_copy_data: "
1317 "ignoring %s\n", d
->d_name
));
1320 DEBUG(6,("shadow_copy2_get_shadow_copy_data: %s -> %s\n",
1321 d
->d_name
, snapshot
));
1324 /* the caller doesn't want the labels */
1325 shadow_copy2_data
->num_volumes
++;
1329 tlabels
= talloc_realloc(shadow_copy2_data
,
1330 shadow_copy2_data
->labels
,
1332 shadow_copy2_data
->num_volumes
+1);
1333 if (tlabels
== NULL
) {
1334 DEBUG(0,("shadow_copy2: out of memory\n"));
1335 SMB_VFS_NEXT_CLOSEDIR(handle
, p
);
1336 talloc_free(tmp_ctx
);
1340 strlcpy(tlabels
[shadow_copy2_data
->num_volumes
], snapshot
,
1343 shadow_copy2_data
->num_volumes
++;
1344 shadow_copy2_data
->labels
= tlabels
;
1347 SMB_VFS_NEXT_CLOSEDIR(handle
,p
);
1349 shadow_copy2_sort_data(handle
, shadow_copy2_data
);
1351 talloc_free(tmp_ctx
);
1355 static NTSTATUS
shadow_copy2_fget_nt_acl(vfs_handle_struct
*handle
,
1356 struct files_struct
*fsp
,
1357 uint32 security_info
,
1358 TALLOC_CTX
*mem_ctx
,
1359 struct security_descriptor
**ppdesc
)
1366 if (!shadow_copy2_strip_snapshot(talloc_tos(), handle
,
1367 fsp
->fsp_name
->base_name
,
1368 ×tamp
, &stripped
)) {
1369 return map_nt_error_from_unix(errno
);
1371 if (timestamp
== 0) {
1372 return SMB_VFS_NEXT_FGET_NT_ACL(handle
, fsp
, security_info
,
1376 conv
= shadow_copy2_convert(talloc_tos(), handle
, stripped
, timestamp
);
1377 TALLOC_FREE(stripped
);
1379 return map_nt_error_from_unix(errno
);
1381 status
= SMB_VFS_NEXT_GET_NT_ACL(handle
, conv
, security_info
,
1387 static NTSTATUS
shadow_copy2_get_nt_acl(vfs_handle_struct
*handle
,
1389 uint32 security_info
,
1390 TALLOC_CTX
*mem_ctx
,
1391 struct security_descriptor
**ppdesc
)
1398 if (!shadow_copy2_strip_snapshot(talloc_tos(), handle
, fname
,
1399 ×tamp
, &stripped
)) {
1400 return map_nt_error_from_unix(errno
);
1402 if (timestamp
== 0) {
1403 return SMB_VFS_NEXT_GET_NT_ACL(handle
, fname
, security_info
,
1406 conv
= shadow_copy2_convert(talloc_tos(), handle
, stripped
, timestamp
);
1407 TALLOC_FREE(stripped
);
1409 return map_nt_error_from_unix(errno
);
1411 status
= SMB_VFS_NEXT_GET_NT_ACL(handle
, conv
, security_info
,
1417 static int shadow_copy2_mkdir(vfs_handle_struct
*handle
,
1418 const char *fname
, mode_t mode
)
1422 int ret
, saved_errno
;
1425 if (!shadow_copy2_strip_snapshot(talloc_tos(), handle
, fname
,
1426 ×tamp
, &stripped
)) {
1429 if (timestamp
== 0) {
1430 return SMB_VFS_NEXT_MKDIR(handle
, fname
, mode
);
1432 conv
= shadow_copy2_convert(talloc_tos(), handle
, stripped
, timestamp
);
1433 TALLOC_FREE(stripped
);
1437 ret
= SMB_VFS_NEXT_MKDIR(handle
, conv
, mode
);
1438 saved_errno
= errno
;
1440 errno
= saved_errno
;
1444 static int shadow_copy2_rmdir(vfs_handle_struct
*handle
, const char *fname
)
1448 int ret
, saved_errno
;
1451 if (!shadow_copy2_strip_snapshot(talloc_tos(), handle
, fname
,
1452 ×tamp
, &stripped
)) {
1455 if (timestamp
== 0) {
1456 return SMB_VFS_NEXT_RMDIR(handle
, fname
);
1458 conv
= shadow_copy2_convert(talloc_tos(), handle
, stripped
, timestamp
);
1459 TALLOC_FREE(stripped
);
1463 ret
= SMB_VFS_NEXT_RMDIR(handle
, conv
);
1464 saved_errno
= errno
;
1466 errno
= saved_errno
;
1470 static int shadow_copy2_chflags(vfs_handle_struct
*handle
, const char *fname
,
1475 int ret
, saved_errno
;
1478 if (!shadow_copy2_strip_snapshot(talloc_tos(), handle
, fname
,
1479 ×tamp
, &stripped
)) {
1482 if (timestamp
== 0) {
1483 return SMB_VFS_NEXT_CHFLAGS(handle
, fname
, flags
);
1485 conv
= shadow_copy2_convert(talloc_tos(), handle
, stripped
, timestamp
);
1486 TALLOC_FREE(stripped
);
1490 ret
= SMB_VFS_NEXT_CHFLAGS(handle
, conv
, flags
);
1491 saved_errno
= errno
;
1493 errno
= saved_errno
;
1497 static ssize_t
shadow_copy2_getxattr(vfs_handle_struct
*handle
,
1498 const char *fname
, const char *aname
,
1499 void *value
, size_t size
)
1507 if (!shadow_copy2_strip_snapshot(talloc_tos(), handle
, fname
,
1508 ×tamp
, &stripped
)) {
1511 if (timestamp
== 0) {
1512 return SMB_VFS_NEXT_GETXATTR(handle
, fname
, aname
, value
,
1515 conv
= shadow_copy2_convert(talloc_tos(), handle
, stripped
, timestamp
);
1516 TALLOC_FREE(stripped
);
1520 ret
= SMB_VFS_NEXT_GETXATTR(handle
, conv
, aname
, value
, size
);
1521 saved_errno
= errno
;
1523 errno
= saved_errno
;
1527 static ssize_t
shadow_copy2_listxattr(struct vfs_handle_struct
*handle
,
1529 char *list
, size_t size
)
1537 if (!shadow_copy2_strip_snapshot(talloc_tos(), handle
, fname
,
1538 ×tamp
, &stripped
)) {
1541 if (timestamp
== 0) {
1542 return SMB_VFS_NEXT_LISTXATTR(handle
, fname
, list
, size
);
1544 conv
= shadow_copy2_convert(talloc_tos(), handle
, stripped
, timestamp
);
1545 TALLOC_FREE(stripped
);
1549 ret
= SMB_VFS_NEXT_LISTXATTR(handle
, conv
, list
, size
);
1550 saved_errno
= errno
;
1552 errno
= saved_errno
;
1556 static int shadow_copy2_removexattr(vfs_handle_struct
*handle
,
1557 const char *fname
, const char *aname
)
1561 int ret
, saved_errno
;
1564 if (!shadow_copy2_strip_snapshot(talloc_tos(), handle
, fname
,
1565 ×tamp
, &stripped
)) {
1568 if (timestamp
== 0) {
1569 return SMB_VFS_NEXT_REMOVEXATTR(handle
, fname
, aname
);
1571 conv
= shadow_copy2_convert(talloc_tos(), handle
, stripped
, timestamp
);
1572 TALLOC_FREE(stripped
);
1576 ret
= SMB_VFS_NEXT_REMOVEXATTR(handle
, conv
, aname
);
1577 saved_errno
= errno
;
1579 errno
= saved_errno
;
1583 static int shadow_copy2_setxattr(struct vfs_handle_struct
*handle
,
1585 const char *aname
, const void *value
,
1586 size_t size
, int flags
)
1594 if (!shadow_copy2_strip_snapshot(talloc_tos(), handle
, fname
,
1595 ×tamp
, &stripped
)) {
1598 if (timestamp
== 0) {
1599 return SMB_VFS_NEXT_SETXATTR(handle
, fname
, aname
, value
, size
,
1602 conv
= shadow_copy2_convert(talloc_tos(), handle
, stripped
, timestamp
);
1603 TALLOC_FREE(stripped
);
1607 ret
= SMB_VFS_NEXT_SETXATTR(handle
, conv
, aname
, value
, size
, flags
);
1608 saved_errno
= errno
;
1610 errno
= saved_errno
;
1614 static int shadow_copy2_chmod_acl(vfs_handle_struct
*handle
,
1615 const char *fname
, mode_t mode
)
1623 if (!shadow_copy2_strip_snapshot(talloc_tos(), handle
, fname
,
1624 ×tamp
, &stripped
)) {
1627 if (timestamp
== 0) {
1628 return SMB_VFS_NEXT_CHMOD_ACL(handle
, fname
, mode
);
1630 conv
= shadow_copy2_convert(talloc_tos(), handle
, stripped
, timestamp
);
1631 TALLOC_FREE(stripped
);
1635 ret
= SMB_VFS_NEXT_CHMOD_ACL(handle
, conv
, mode
);
1636 saved_errno
= errno
;
1638 errno
= saved_errno
;
1642 static int shadow_copy2_get_real_filename(struct vfs_handle_struct
*handle
,
1645 TALLOC_CTX
*mem_ctx
,
1654 if (!shadow_copy2_strip_snapshot(talloc_tos(), handle
, path
,
1655 ×tamp
, &stripped
)) {
1658 if (timestamp
== 0) {
1659 return SMB_VFS_NEXT_GET_REAL_FILENAME(handle
, path
, name
,
1660 mem_ctx
, found_name
);
1662 if (stripped
[0] == '\0') {
1663 *found_name
= talloc_strdup(mem_ctx
, name
);
1664 if (*found_name
== NULL
) {
1670 conv
= shadow_copy2_convert(talloc_tos(), handle
, stripped
, timestamp
);
1671 TALLOC_FREE(stripped
);
1675 ret
= SMB_VFS_NEXT_GET_REAL_FILENAME(handle
, conv
, name
,
1676 mem_ctx
, found_name
);
1677 saved_errno
= errno
;
1679 errno
= saved_errno
;
1683 static uint64_t shadow_copy2_disk_free(vfs_handle_struct
*handle
,
1684 const char *path
, bool small_query
,
1685 uint64_t *bsize
, uint64_t *dfree
,
1694 if (!shadow_copy2_strip_snapshot(talloc_tos(), handle
, path
,
1695 ×tamp
, &stripped
)) {
1698 if (timestamp
== 0) {
1699 return SMB_VFS_NEXT_DISK_FREE(handle
, path
, small_query
,
1700 bsize
, dfree
, dsize
);
1703 conv
= shadow_copy2_convert(talloc_tos(), handle
, stripped
, timestamp
);
1704 TALLOC_FREE(stripped
);
1709 ret
= SMB_VFS_NEXT_DISK_FREE(handle
, conv
, small_query
, bsize
, dfree
,
1712 saved_errno
= errno
;
1714 errno
= saved_errno
;
1719 static int shadow_copy2_connect(struct vfs_handle_struct
*handle
,
1720 const char *service
, const char *user
)
1722 struct shadow_copy2_config
*config
;
1724 const char *snapdir
;
1725 const char *gmt_format
;
1726 const char *sort_order
;
1727 const char *basedir
;
1728 const char *mount_point
;
1730 DEBUG(10, (__location__
": cnum[%u], connectpath[%s]\n",
1731 (unsigned)handle
->conn
->cnum
,
1732 handle
->conn
->connectpath
));
1734 ret
= SMB_VFS_NEXT_CONNECT(handle
, service
, user
);
1739 config
= talloc_zero(handle
->conn
, struct shadow_copy2_config
);
1740 if (config
== NULL
) {
1741 DEBUG(0, ("talloc_zero() failed\n"));
1746 gmt_format
= lp_parm_const_string(SNUM(handle
->conn
),
1749 config
->gmt_format
= talloc_strdup(config
, gmt_format
);
1750 if (config
->gmt_format
== NULL
) {
1751 DEBUG(0, ("talloc_strdup() failed\n"));
1756 config
->use_sscanf
= lp_parm_bool(SNUM(handle
->conn
),
1757 "shadow", "sscanf", false);
1759 config
->use_localtime
= lp_parm_bool(SNUM(handle
->conn
),
1760 "shadow", "localtime",
1763 snapdir
= lp_parm_const_string(SNUM(handle
->conn
),
1764 "shadow", "snapdir",
1766 config
->snapdir
= talloc_strdup(config
, snapdir
);
1767 if (config
->snapdir
== NULL
) {
1768 DEBUG(0, ("talloc_strdup() failed\n"));
1773 config
->snapdirseverywhere
= lp_parm_bool(SNUM(handle
->conn
),
1775 "snapdirseverywhere",
1778 config
->crossmountpoints
= lp_parm_bool(SNUM(handle
->conn
),
1779 "shadow", "crossmountpoints",
1782 config
->fixinodes
= lp_parm_bool(SNUM(handle
->conn
),
1783 "shadow", "fixinodes",
1786 sort_order
= lp_parm_const_string(SNUM(handle
->conn
),
1787 "shadow", "sort", "desc");
1788 config
->sort_order
= talloc_strdup(config
, sort_order
);
1789 if (config
->sort_order
== NULL
) {
1790 DEBUG(0, ("talloc_strdup() failed\n"));
1795 mount_point
= lp_parm_const_string(SNUM(handle
->conn
),
1796 "shadow", "mountpoint", NULL
);
1797 if (mount_point
!= NULL
) {
1798 if (mount_point
[0] != '/') {
1799 DEBUG(1, (__location__
" Warning: 'mountpoint' is "
1800 "relative ('%s'), but it has to be an "
1801 "absolute path. Ignoring provided value.\n",
1806 p
= strstr(handle
->conn
->connectpath
, mount_point
);
1807 if (p
!= handle
->conn
->connectpath
) {
1808 DEBUG(1, ("Warning: mount_point (%s) is not a "
1809 "subdirectory of the share root "
1810 "(%s). Ignoring provided value.\n",
1812 handle
->conn
->connectpath
));
1818 if (mount_point
!= NULL
) {
1819 config
->mount_point
= talloc_strdup(config
, mount_point
);
1820 if (config
->mount_point
== NULL
) {
1821 DEBUG(0, (__location__
" talloc_strdup() failed\n"));
1825 config
->mount_point
= shadow_copy2_find_mount_point(config
,
1827 if (config
->mount_point
== NULL
) {
1828 DEBUG(0, (__location__
": shadow_copy2_find_mount_point"
1829 " failed: %s\n", strerror(errno
)));
1834 basedir
= lp_parm_const_string(SNUM(handle
->conn
),
1835 "shadow", "basedir", NULL
);
1837 if (basedir
!= NULL
) {
1838 if (basedir
[0] != '/') {
1839 DEBUG(1, (__location__
" Warning: 'basedir' is "
1840 "relative ('%s'), but it has to be an "
1841 "absolute path. Disabling basedir.\n",
1845 p
= strstr(basedir
, config
->mount_point
);
1847 DEBUG(1, ("Warning: basedir (%s) is not a "
1848 "subdirectory of the share root's "
1849 "mount point (%s). "
1850 "Disabling basedir\n",
1851 basedir
, config
->mount_point
));
1853 config
->basedir
= talloc_strdup(config
,
1855 if (config
->basedir
== NULL
) {
1856 DEBUG(0, ("talloc_strdup() failed\n"));
1864 if (config
->snapdirseverywhere
&& config
->basedir
!= NULL
) {
1865 DEBUG(1, (__location__
" Warning: 'basedir' is incompatible "
1866 "with 'snapdirseverywhere'. Disabling basedir.\n"));
1867 TALLOC_FREE(config
->basedir
);
1870 if (config
->crossmountpoints
&& config
->basedir
!= NULL
) {
1871 DEBUG(1, (__location__
" Warning: 'basedir' is incompatible "
1872 "with 'crossmountpoints'. Disabling basedir.\n"));
1873 TALLOC_FREE(config
->basedir
);
1876 if (config
->basedir
== NULL
) {
1877 config
->basedir
= config
->mount_point
;
1880 if (strlen(config
->basedir
) != strlen(handle
->conn
->connectpath
)) {
1881 config
->rel_connectpath
= talloc_strdup(config
,
1882 handle
->conn
->connectpath
+ strlen(config
->basedir
));
1883 if (config
->rel_connectpath
== NULL
) {
1884 DEBUG(0, ("talloc_strdup() failed\n"));
1890 if (config
->snapdir
[0] == '/') {
1891 config
->snapdir_absolute
= true;
1893 if (config
->snapdirseverywhere
== true) {
1894 DEBUG(1, (__location__
" Warning: An absolute snapdir "
1895 "is incompatible with 'snapdirseverywhere', "
1896 "setting 'snapdirseverywhere' to false.\n"));
1897 config
->snapdirseverywhere
= false;
1900 if (config
->crossmountpoints
== true) {
1901 DEBUG(1, (__location__
" Warning: 'crossmountpoints' "
1902 "is not supported with an absolute snapdir. "
1903 "Disabling it.\n"));
1904 config
->crossmountpoints
= false;
1907 config
->snapshot_basepath
= config
->snapdir
;
1909 config
->snapshot_basepath
= talloc_asprintf(config
, "%s/%s",
1910 config
->mount_point
, config
->snapdir
);
1911 if (config
->snapshot_basepath
== NULL
) {
1912 DEBUG(0, ("talloc_asprintf() failed\n"));
1918 DEBUG(10, ("shadow_copy2_connect: configuration:\n"
1919 " share root: '%s'\n"
1921 " mountpoint: '%s'\n"
1922 " rel share root: '%s'\n"
1924 " snapshot base path: '%s'\n"
1927 " snapdirs everywhere: %s\n"
1928 " cross mountpoints: %s\n"
1932 handle
->conn
->connectpath
,
1934 config
->mount_point
,
1935 config
->rel_connectpath
,
1937 config
->snapshot_basepath
,
1939 config
->use_sscanf
? "yes" : "no",
1940 config
->snapdirseverywhere
? "yes" : "no",
1941 config
->crossmountpoints
? "yes" : "no",
1942 config
->fixinodes
? "yes" : "no",
1947 SMB_VFS_HANDLE_SET_DATA(handle
, config
,
1948 NULL
, struct shadow_copy2_config
,
1954 static struct vfs_fn_pointers vfs_shadow_copy2_fns
= {
1955 .connect_fn
= shadow_copy2_connect
,
1956 .opendir_fn
= shadow_copy2_opendir
,
1957 .disk_free_fn
= shadow_copy2_disk_free
,
1958 .rename_fn
= shadow_copy2_rename
,
1959 .link_fn
= shadow_copy2_link
,
1960 .symlink_fn
= shadow_copy2_symlink
,
1961 .stat_fn
= shadow_copy2_stat
,
1962 .lstat_fn
= shadow_copy2_lstat
,
1963 .fstat_fn
= shadow_copy2_fstat
,
1964 .open_fn
= shadow_copy2_open
,
1965 .unlink_fn
= shadow_copy2_unlink
,
1966 .chmod_fn
= shadow_copy2_chmod
,
1967 .chown_fn
= shadow_copy2_chown
,
1968 .chdir_fn
= shadow_copy2_chdir
,
1969 .ntimes_fn
= shadow_copy2_ntimes
,
1970 .readlink_fn
= shadow_copy2_readlink
,
1971 .mknod_fn
= shadow_copy2_mknod
,
1972 .realpath_fn
= shadow_copy2_realpath
,
1973 .get_nt_acl_fn
= shadow_copy2_get_nt_acl
,
1974 .fget_nt_acl_fn
= shadow_copy2_fget_nt_acl
,
1975 .get_shadow_copy_data_fn
= shadow_copy2_get_shadow_copy_data
,
1976 .mkdir_fn
= shadow_copy2_mkdir
,
1977 .rmdir_fn
= shadow_copy2_rmdir
,
1978 .getxattr_fn
= shadow_copy2_getxattr
,
1979 .listxattr_fn
= shadow_copy2_listxattr
,
1980 .removexattr_fn
= shadow_copy2_removexattr
,
1981 .setxattr_fn
= shadow_copy2_setxattr
,
1982 .chmod_acl_fn
= shadow_copy2_chmod_acl
,
1983 .chflags_fn
= shadow_copy2_chflags
,
1984 .get_real_filename_fn
= shadow_copy2_get_real_filename
,
1987 NTSTATUS
vfs_shadow_copy2_init(void);
1988 NTSTATUS
vfs_shadow_copy2_init(void)
1990 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION
,
1991 "shadow_copy2", &vfs_shadow_copy2_fns
);