2 Unix SMB/CIFS implementation.
3 filename handling routines
4 Copyright (C) Andrew Tridgell 1992-1998
5 Copyright (C) Jeremy Allison 1999-2007
6 Copyright (C) Ying Chen 2000
7 Copyright (C) Volker Lendecke 2007
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>.
24 * New hash table stat cache code added by Ying Chen.
29 static NTSTATUS
build_stream_path(TALLOC_CTX
*mem_ctx
,
30 connection_struct
*conn
,
31 const char *orig_path
,
32 struct smb_filename
*smb_fname
);
34 /****************************************************************************
35 Mangle the 2nd name and check if it is then equal to the first name.
36 ****************************************************************************/
38 static bool mangled_equal(const char *name1
,
40 const struct share_params
*p
)
44 if (!name_to_8_3(name2
, mname
, False
, p
)) {
47 return strequal(name1
, mname
);
50 /****************************************************************************
51 Cope with the differing wildcard and non-wildcard error cases.
52 ****************************************************************************/
54 static NTSTATUS
determine_path_error(const char *name
,
55 bool allow_wcard_last_component
)
59 if (!allow_wcard_last_component
) {
60 /* Error code within a pathname. */
61 return NT_STATUS_OBJECT_PATH_NOT_FOUND
;
64 /* We're terminating here so we
65 * can be a little slower and get
66 * the error code right. Windows
67 * treats the last part of the pathname
68 * separately I think, so if the last
69 * component is a wildcard then we treat
70 * this ./ as "end of component" */
72 p
= strchr(name
, '/');
74 if (!p
&& (ms_has_wild(name
) || ISDOT(name
))) {
75 /* Error code at the end of a pathname. */
76 return NT_STATUS_OBJECT_NAME_INVALID
;
78 /* Error code within a pathname. */
79 return NT_STATUS_OBJECT_PATH_NOT_FOUND
;
83 static NTSTATUS
check_for_dot_component(const struct smb_filename
*smb_fname
)
85 /* Ensure we catch all names with in "/."
86 this is disallowed under Windows and
87 in POSIX they've already been removed. */
88 const char *p
= strstr(smb_fname
->base_name
, "/."); /*mb safe*/
91 /* Error code within a pathname. */
92 return NT_STATUS_OBJECT_PATH_NOT_FOUND
;
93 } else if (p
[2] == '\0') {
94 /* Error code at the end of a pathname. */
95 return NT_STATUS_OBJECT_NAME_INVALID
;
101 /****************************************************************************
102 This routine is called to convert names from the dos namespace to unix
103 namespace. It needs to handle any case conversions, mangling, format changes,
106 We assume that we have already done a chdir() to the right "root" directory
109 The function will return an NTSTATUS error if some part of the name except for
110 the last part cannot be resolved, else NT_STATUS_OK.
112 Note NT_STATUS_OK doesn't mean the name exists or is valid, just that we
113 didn't get any fatal errors that should immediately terminate the calling SMB
114 processing whilst resolving.
116 If the UCF_SAVE_LCOMP flag is passed in, then the unmodified last component
117 of the pathname is set in smb_filename->original_lcomp.
119 If UCF_ALWAYS_ALLOW_WCARD_LCOMP is passed in, then a MS wildcard was detected
120 and should be allowed in the last component of the path only.
122 If the orig_path was a stream, smb_filename->base_name will point to the base
123 filename, and smb_filename->stream_name will point to the stream name. If
124 orig_path was not a stream, then smb_filename->stream_name will be NULL.
126 On exit from unix_convert, the smb_filename->st stat struct will be populated
127 if the file exists and was found, if not this stat struct will be filled with
128 zeros (and this can be detected by checking for nlinks = 0, which can never be
130 ****************************************************************************/
132 NTSTATUS
unix_convert(TALLOC_CTX
*ctx
,
133 connection_struct
*conn
,
134 const char *orig_path
,
135 struct smb_filename
**smb_fname_out
,
138 struct smb_filename
*smb_fname
= NULL
;
140 char *dirpath
= NULL
;
142 bool component_was_mangled
= False
;
143 bool name_has_wildcard
= False
;
144 bool posix_pathnames
= false;
145 bool allow_wcard_last_component
=
146 (ucf_flags
& UCF_ALWAYS_ALLOW_WCARD_LCOMP
);
147 bool save_last_component
= ucf_flags
& UCF_SAVE_LCOMP
;
151 *smb_fname_out
= NULL
;
153 smb_fname
= talloc_zero(ctx
, struct smb_filename
);
154 if (smb_fname
== NULL
) {
155 return NT_STATUS_NO_MEMORY
;
159 /* we don't ever use the filenames on a printer share as a
160 filename - so don't convert them */
161 if (!(smb_fname
->base_name
= talloc_strdup(smb_fname
,
163 status
= NT_STATUS_NO_MEMORY
;
169 DEBUG(5, ("unix_convert called on file \"%s\"\n", orig_path
));
172 * Conversion to basic unix format is already done in
173 * check_path_syntax().
177 * Names must be relative to the root of the service - any leading /.
178 * and trailing /'s should have been trimmed by check_path_syntax().
182 SMB_ASSERT(*orig_path
!= '/');
186 * If we trimmed down to a single '\0' character
187 * then we should use the "." directory to avoid
188 * searching the cache, but not if we are in a
190 * As we know this is valid we can return true here.
194 if (!(smb_fname
->base_name
= talloc_strdup(smb_fname
, "."))) {
195 status
= NT_STATUS_NO_MEMORY
;
198 if (SMB_VFS_STAT(conn
, smb_fname
) != 0) {
199 status
= map_nt_error_from_unix(errno
);
202 DEBUG(5, ("conversion finished \"\" -> %s\n",
203 smb_fname
->base_name
));
207 if (orig_path
[0] == '.' && (orig_path
[1] == '/' ||
208 orig_path
[1] == '\0')) {
209 /* Start of pathname can't be "." only. */
210 if (orig_path
[1] == '\0' || orig_path
[2] == '\0') {
211 status
= NT_STATUS_OBJECT_NAME_INVALID
;
213 status
=determine_path_error(&orig_path
[2],
214 allow_wcard_last_component
);
219 /* Start with the full orig_path as given by the caller. */
220 if (!(smb_fname
->base_name
= talloc_strdup(smb_fname
, orig_path
))) {
221 DEBUG(0, ("talloc_strdup failed\n"));
222 status
= NT_STATUS_NO_MEMORY
;
227 * Large directory fix normalization. If we're case sensitive, and
228 * the case preserving parameters are set to "no", normalize the case of
229 * the incoming filename from the client WHETHER IT EXISTS OR NOT !
230 * This is in conflict with the current (3.0.20) man page, but is
231 * what people expect from the "large directory howto". I'll update
232 * the man page. Thanks to jht@samba.org for finding this. JRA.
235 if (conn
->case_sensitive
&& !conn
->case_preserve
&&
236 !conn
->short_case_preserve
) {
237 strnorm(smb_fname
->base_name
, lp_defaultcase(SNUM(conn
)));
241 * Ensure saved_last_component is valid even if file exists.
244 if(save_last_component
) {
245 end
= strrchr_m(smb_fname
->base_name
, '/');
247 smb_fname
->original_lcomp
= talloc_strdup(smb_fname
,
250 smb_fname
->original_lcomp
=
251 talloc_strdup(smb_fname
, smb_fname
->base_name
);
253 if (smb_fname
->original_lcomp
== NULL
) {
254 status
= NT_STATUS_NO_MEMORY
;
259 posix_pathnames
= (lp_posix_pathnames() ||
260 (ucf_flags
& UCF_POSIX_PATHNAMES
));
263 * Strip off the stream, and add it back when we're done with the
266 if (!posix_pathnames
) {
267 stream
= strchr_m(smb_fname
->base_name
, ':');
269 if (stream
!= NULL
) {
270 char *tmp
= talloc_strdup(smb_fname
, stream
);
272 status
= NT_STATUS_NO_MEMORY
;
276 * Since this is actually pointing into
277 * smb_fname->base_name this truncates base_name.
284 start
= smb_fname
->base_name
;
287 * If we're providing case insentive semantics or
288 * the underlying filesystem is case insensitive,
289 * then a case-normalized hit in the stat-cache is
290 * authoratitive. JRA.
292 * Note: We're only checking base_name. The stream_name will be
293 * added and verified in build_stream_path().
296 if((!conn
->case_sensitive
|| !(conn
->fs_capabilities
&
297 FILE_CASE_SENSITIVE_SEARCH
)) &&
298 stat_cache_lookup(conn
, &smb_fname
->base_name
, &dirpath
, &start
,
304 * Make sure "dirpath" is an allocated string, we use this for
305 * building the directories with asprintf and free it.
308 if ((dirpath
== NULL
) && (!(dirpath
= talloc_strdup(ctx
,"")))) {
309 DEBUG(0, ("talloc_strdup failed\n"));
310 status
= NT_STATUS_NO_MEMORY
;
315 * If we have a wildcard we must walk the path to
316 * find where the error is, even if case sensitive
320 name_has_wildcard
= ms_has_wild(smb_fname
->base_name
);
321 if (name_has_wildcard
&& !allow_wcard_last_component
) {
322 /* Wildcard not valid anywhere. */
323 status
= NT_STATUS_OBJECT_NAME_INVALID
;
327 DEBUG(5,("unix_convert begin: name = %s, dirpath = %s, start = %s\n",
328 smb_fname
->base_name
, dirpath
, start
));
330 if (!name_has_wildcard
) {
332 * stat the name - if it exists then we can add the stream back (if
333 * there was one) and be done!
336 if (posix_pathnames
) {
337 ret
= SMB_VFS_LSTAT(conn
, smb_fname
);
339 ret
= SMB_VFS_STAT(conn
, smb_fname
);
343 status
= check_for_dot_component(smb_fname
);
344 if (!NT_STATUS_IS_OK(status
)) {
347 /* Add the path (not including the stream) to the cache. */
348 stat_cache_add(orig_path
, smb_fname
->base_name
,
349 conn
->case_sensitive
);
350 DEBUG(5,("conversion of base_name finished %s -> %s\n",
351 orig_path
, smb_fname
->base_name
));
355 /* Stat failed - ensure we don't use it. */
356 SET_STAT_INVALID(smb_fname
->st
);
359 * A special case - if we don't have any wildcards or mangling chars and are case
360 * sensitive or the underlying filesystem is case insentive then searching
364 if ((conn
->case_sensitive
|| !(conn
->fs_capabilities
&
365 FILE_CASE_SENSITIVE_SEARCH
)) &&
366 !mangle_is_mangled(smb_fname
->base_name
, conn
->params
)) {
368 status
= check_for_dot_component(smb_fname
);
369 if (!NT_STATUS_IS_OK(status
)) {
374 * The stat failed. Could be ok as it could be
378 if (errno
== ENOTDIR
|| errno
== ELOOP
) {
379 status
= NT_STATUS_OBJECT_PATH_NOT_FOUND
;
381 } else if (errno
== ENOENT
) {
383 * Was it a missing last component ?
384 * or a missing intermediate component ?
386 struct smb_filename parent_fname
;
387 ZERO_STRUCT(parent_fname
);
388 if (!parent_dirname(ctx
, smb_fname
->base_name
,
389 &parent_fname
.base_name
,
391 status
= NT_STATUS_NO_MEMORY
;
394 if (posix_pathnames
) {
395 ret
= SMB_VFS_LSTAT(conn
, &parent_fname
);
397 ret
= SMB_VFS_STAT(conn
, &parent_fname
);
400 if (errno
== ENOTDIR
||
403 status
= NT_STATUS_OBJECT_PATH_NOT_FOUND
;
408 * Missing last component is ok - new file.
409 * Also deal with permission denied elsewhere.
410 * Just drop out to done.
418 * is_mangled() was changed to look at an entire pathname, not
419 * just a component. JRA.
422 if (mangle_is_mangled(start
, conn
->params
)) {
423 component_was_mangled
= True
;
427 * Now we need to recursively match the name against the real
428 * directory structure.
432 * Match each part of the path name separately, trying the names
433 * as is first, then trying to scan the directory for matching names.
436 for (; start
; start
= (end
?end
+1:(char *)NULL
)) {
438 * Pinpoint the end of this section of the filename.
440 /* mb safe. '/' can't be in any encoded char. */
441 end
= strchr(start
, '/');
444 * Chop the name at this point.
450 if (save_last_component
) {
451 TALLOC_FREE(smb_fname
->original_lcomp
);
452 smb_fname
->original_lcomp
= talloc_strdup(smb_fname
,
453 end
? end
+ 1 : start
);
454 if (!smb_fname
->original_lcomp
) {
455 DEBUG(0, ("talloc failed\n"));
456 status
= NT_STATUS_NO_MEMORY
;
461 /* The name cannot have a component of "." */
465 /* Error code at the end of a pathname. */
466 status
= NT_STATUS_OBJECT_NAME_INVALID
;
468 status
= determine_path_error(end
+1,
469 allow_wcard_last_component
);
474 /* The name cannot have a wildcard if it's not
475 the last component. */
477 name_has_wildcard
= ms_has_wild(start
);
479 /* Wildcards never valid within a pathname. */
480 if (name_has_wildcard
&& end
) {
481 status
= NT_STATUS_OBJECT_NAME_INVALID
;
486 * Check if the name exists up to this point.
489 if (posix_pathnames
) {
490 ret
= SMB_VFS_LSTAT(conn
, smb_fname
);
492 ret
= SMB_VFS_STAT(conn
, smb_fname
);
497 * It exists. it must either be a directory or this must
498 * be the last part of the path for it to be OK.
500 if (end
&& !S_ISDIR(smb_fname
->st
.st_ex_mode
)) {
502 * An intermediate part of the name isn't
505 DEBUG(5,("Not a dir %s\n",start
));
508 * We need to return the fact that the
509 * intermediate name resolution failed. This
510 * is used to return an error of ERRbadpath
511 * rather than ERRbadfile. Some Windows
512 * applications depend on the difference between
515 status
= NT_STATUS_OBJECT_PATH_NOT_FOUND
;
520 char *found_name
= NULL
;
522 /* Stat failed - ensure we don't use it. */
523 SET_STAT_INVALID(smb_fname
->st
);
526 * Reset errno so we can detect
527 * directory open errors.
532 * Try to find this part of the path in the directory.
535 if (name_has_wildcard
||
536 (get_real_filename(conn
, dirpath
, start
,
538 &found_name
) == -1)) {
543 * An intermediate part of the name
546 DEBUG(5,("Intermediate not found %s\n",
551 * We need to return the fact that the
552 * intermediate name resolution failed.
553 * This is used to return an error of
554 * ERRbadpath rather than ERRbadfile.
555 * Some Windows applications depend on
556 * the difference between these two
561 * ENOENT, ENOTDIR and ELOOP all map
562 * to NT_STATUS_OBJECT_PATH_NOT_FOUND
563 * in the filename walk.
566 if (errno
== ENOENT
||
570 NT_STATUS_OBJECT_PATH_NOT_FOUND
;
574 map_nt_error_from_unix(errno
);
580 * ENOENT/EACCESS are the only valid errors
581 * here. EACCESS needs handling here for
582 * "dropboxes", i.e. directories where users
583 * can only put stuff with permission -wx.
585 if ((errno
!= 0) && (errno
!= ENOENT
)
586 && (errno
!= EACCES
)) {
588 * ENOTDIR and ELOOP both map to
589 * NT_STATUS_OBJECT_PATH_NOT_FOUND
590 * in the filename walk.
592 if (errno
== ENOTDIR
||
595 NT_STATUS_OBJECT_PATH_NOT_FOUND
;
598 map_nt_error_from_unix(errno
);
604 * Just the last part of the name doesn't exist.
605 * We need to strupper() or strlower() it as
606 * this conversion may be used for file creation
607 * purposes. Fix inspired by
608 * Thomas Neumann <t.neumann@iku-ag.de>.
610 if (!conn
->case_preserve
||
611 (mangle_is_8_3(start
, False
,
613 !conn
->short_case_preserve
)) {
615 lp_defaultcase(SNUM(conn
)));
619 * check on the mangled stack to see if we can
620 * recover the base of the filename.
623 if (mangle_is_mangled(start
, conn
->params
)
624 && mangle_lookup_name_from_8_3(ctx
,
630 start
- smb_fname
->base_name
;
632 if (*dirpath
!= '\0') {
633 tmp
= talloc_asprintf(
636 TALLOC_FREE(unmangled
);
642 DEBUG(0, ("talloc failed\n"));
643 status
= NT_STATUS_NO_MEMORY
;
646 TALLOC_FREE(smb_fname
->base_name
);
647 smb_fname
->base_name
= tmp
;
649 smb_fname
->base_name
+ start_ofs
;
650 end
= start
+ strlen(start
);
653 DEBUG(5,("New file %s\n",start
));
659 * Restore the rest of the string. If the string was
660 * mangled the size may have changed.
665 start
- smb_fname
->base_name
;
667 if (*dirpath
!= '\0') {
668 tmp
= talloc_asprintf(smb_fname
,
673 tmp
= talloc_asprintf(smb_fname
,
678 DEBUG(0, ("talloc_asprintf failed\n"));
679 status
= NT_STATUS_NO_MEMORY
;
682 TALLOC_FREE(smb_fname
->base_name
);
683 smb_fname
->base_name
= tmp
;
684 start
= smb_fname
->base_name
+ start_ofs
;
685 end
= start
+ strlen(found_name
);
690 start
- smb_fname
->base_name
;
692 if (*dirpath
!= '\0') {
693 tmp
= talloc_asprintf(smb_fname
,
697 tmp
= talloc_strdup(smb_fname
,
701 DEBUG(0, ("talloc failed\n"));
702 status
= NT_STATUS_NO_MEMORY
;
705 TALLOC_FREE(smb_fname
->base_name
);
706 smb_fname
->base_name
= tmp
;
707 start
= smb_fname
->base_name
+ start_ofs
;
710 * We just scanned for, and found the end of
711 * the path. We must return a valid stat struct
715 if (posix_pathnames
) {
716 ret
= SMB_VFS_LSTAT(conn
, smb_fname
);
718 ret
= SMB_VFS_STAT(conn
, smb_fname
);
722 SET_STAT_INVALID(smb_fname
->st
);
726 TALLOC_FREE(found_name
);
732 * We should never provide different behaviors
733 * depending on DEVELOPER!!!
735 if (VALID_STAT(smb_fname
->st
)) {
737 get_file_infos(vfs_file_id_from_sbuf(conn
,
739 &delete_pending
, NULL
);
740 if (delete_pending
) {
741 status
= NT_STATUS_DELETE_PENDING
;
748 * Add to the dirpath that we have resolved so far.
751 if (*dirpath
!= '\0') {
752 char *tmp
= talloc_asprintf(ctx
,
753 "%s/%s", dirpath
, start
);
755 DEBUG(0, ("talloc_asprintf failed\n"));
756 status
= NT_STATUS_NO_MEMORY
;
759 TALLOC_FREE(dirpath
);
763 TALLOC_FREE(dirpath
);
764 if (!(dirpath
= talloc_strdup(ctx
,start
))) {
765 DEBUG(0, ("talloc_strdup failed\n"));
766 status
= NT_STATUS_NO_MEMORY
;
772 * Cache the dirpath thus far. Don't cache a name with mangled
773 * or wildcard components as this can change the size.
775 if(!component_was_mangled
&& !name_has_wildcard
) {
776 stat_cache_add(orig_path
, dirpath
,
777 conn
->case_sensitive
);
781 * Restore the / that we wiped out earlier.
789 * Cache the full path. Don't cache a name with mangled or wildcard
790 * components as this can change the size.
793 if(!component_was_mangled
&& !name_has_wildcard
) {
794 stat_cache_add(orig_path
, smb_fname
->base_name
,
795 conn
->case_sensitive
);
799 * The name has been resolved.
802 DEBUG(5,("conversion finished %s -> %s\n", orig_path
,
803 smb_fname
->base_name
));
806 /* Add back the stream if one was stripped off originally. */
807 if (stream
!= NULL
) {
808 smb_fname
->stream_name
= stream
;
810 /* Check path now that the base_name has been converted. */
811 status
= build_stream_path(ctx
, conn
, orig_path
, smb_fname
);
812 if (!NT_STATUS_IS_OK(status
)) {
816 TALLOC_FREE(dirpath
);
817 *smb_fname_out
= smb_fname
;
820 DEBUG(10, ("dirpath = [%s] start = [%s]\n", dirpath
, start
));
821 if (*dirpath
!= '\0') {
822 smb_fname
->base_name
= talloc_asprintf(smb_fname
, "%s/%s",
825 smb_fname
->base_name
= talloc_strdup(smb_fname
, start
);
827 if (!smb_fname
->base_name
) {
828 DEBUG(0, ("talloc_asprintf failed\n"));
829 status
= NT_STATUS_NO_MEMORY
;
833 *smb_fname_out
= smb_fname
;
834 TALLOC_FREE(dirpath
);
837 TALLOC_FREE(smb_fname
);
841 /****************************************************************************
842 Check a filename - possibly calling check_reduced_name.
843 This is called by every routine before it allows an operation on a filename.
844 It does any final confirmation necessary to ensure that the filename is
845 a valid one for the user to access.
846 ****************************************************************************/
848 NTSTATUS
check_name(connection_struct
*conn
, const char *name
)
850 if (IS_VETO_PATH(conn
, name
)) {
851 /* Is it not dot or dot dot. */
852 if (!((name
[0] == '.') && (!name
[1] ||
853 (name
[1] == '.' && !name
[2])))) {
854 DEBUG(5,("check_name: file path name %s vetoed\n",
856 return map_nt_error_from_unix(ENOENT
);
860 if (!lp_widelinks(SNUM(conn
)) || !lp_symlinks(SNUM(conn
))) {
861 NTSTATUS status
= check_reduced_name(conn
,name
);
862 if (!NT_STATUS_IS_OK(status
)) {
863 DEBUG(5,("check_name: name %s failed with %s\n",name
,
872 /****************************************************************************
873 Check if two filenames are equal.
874 This needs to be careful about whether we are case sensitive.
875 ****************************************************************************/
877 static bool fname_equal(const char *name1
, const char *name2
,
880 /* Normal filename handling */
881 if (case_sensitive
) {
882 return(strcmp(name1
,name2
) == 0);
885 return(strequal(name1
,name2
));
888 /****************************************************************************
889 Scan a directory to find a filename, matching without case sensitivity.
890 If the name looks like a mangled name then try via the mangling functions
891 ****************************************************************************/
893 static int get_real_filename_full_scan(connection_struct
*conn
,
894 const char *path
, const char *name
,
896 TALLOC_CTX
*mem_ctx
, char **found_name
)
898 struct smb_Dir
*cur_dir
;
899 const char *dname
= NULL
;
900 char *talloced
= NULL
;
901 char *unmangled_name
= NULL
;
904 /* handle null paths */
905 if ((path
== NULL
) || (*path
== 0)) {
909 /* If we have a case-sensitive filesystem, it doesn't do us any
910 * good to search for a name. If a case variation of the name was
911 * there, then the original stat(2) would have found it.
913 if (!mangled
&& !(conn
->fs_capabilities
& FILE_CASE_SENSITIVE_SEARCH
)) {
919 * The incoming name can be mangled, and if we de-mangle it
920 * here it will not compare correctly against the filename (name2)
921 * read from the directory and then mangled by the name_to_8_3()
922 * call. We need to mangle both names or neither.
925 * Fix for bug found by Dina Fine. If in case sensitive mode then
926 * the mangle cache is no good (3 letter extension could be wrong
927 * case - so don't demangle in this case - leave as mangled and
928 * allow the mangling of the directory entry read (which is done
929 * case insensitively) to match instead. This will lead to more
930 * false positive matches but we fail completely without it. JRA.
933 if (mangled
&& !conn
->case_sensitive
) {
934 mangled
= !mangle_lookup_name_from_8_3(talloc_tos(), name
,
938 /* Name is now unmangled. */
939 name
= unmangled_name
;
943 /* open the directory */
944 if (!(cur_dir
= OpenDir(talloc_tos(), conn
, path
, NULL
, 0))) {
945 DEBUG(3,("scan dir didn't open dir [%s]\n",path
));
946 TALLOC_FREE(unmangled_name
);
950 /* now scan for matching names */
952 while ((dname
= ReadDirName(cur_dir
, &curpos
, NULL
, &talloced
))) {
954 /* Is it dot or dot dot. */
955 if (ISDOT(dname
) || ISDOTDOT(dname
)) {
956 TALLOC_FREE(talloced
);
961 * At this point dname is the unmangled name.
962 * name is either mangled or not, depending on the state
963 * of the "mangled" variable. JRA.
967 * Check mangled name against mangled name, or unmangled name
968 * against unmangled name.
971 if ((mangled
&& mangled_equal(name
,dname
,conn
->params
)) ||
972 fname_equal(name
, dname
, conn
->case_sensitive
)) {
973 /* we've found the file, change it's name and return */
974 *found_name
= talloc_strdup(mem_ctx
, dname
);
975 TALLOC_FREE(unmangled_name
);
976 TALLOC_FREE(cur_dir
);
979 TALLOC_FREE(talloced
);
982 TALLOC_FREE(talloced
);
985 TALLOC_FREE(talloced
);
988 TALLOC_FREE(unmangled_name
);
989 TALLOC_FREE(cur_dir
);
994 /****************************************************************************
995 Wrapper around the vfs get_real_filename and the full directory scan
997 ****************************************************************************/
999 int get_real_filename(connection_struct
*conn
, const char *path
,
1000 const char *name
, TALLOC_CTX
*mem_ctx
,
1006 mangled
= mangle_is_mangled(name
, conn
->params
);
1009 return get_real_filename_full_scan(conn
, path
, name
, mangled
,
1010 mem_ctx
, found_name
);
1013 /* Try the vfs first to take advantage of case-insensitive stat. */
1014 ret
= SMB_VFS_GET_REAL_FILENAME(conn
, path
, name
, mem_ctx
, found_name
);
1017 * If the case-insensitive stat was successful, or returned an error
1018 * other than EOPNOTSUPP then there is no need to fall back on the
1019 * full directory scan.
1021 if (ret
== 0 || (ret
== -1 && errno
!= EOPNOTSUPP
)) {
1025 return get_real_filename_full_scan(conn
, path
, name
, mangled
, mem_ctx
,
1029 static NTSTATUS
build_stream_path(TALLOC_CTX
*mem_ctx
,
1030 connection_struct
*conn
,
1031 const char *orig_path
,
1032 struct smb_filename
*smb_fname
)
1035 unsigned int i
, num_streams
;
1036 struct stream_struct
*streams
= NULL
;
1038 if (SMB_VFS_STAT(conn
, smb_fname
) == 0) {
1039 DEBUG(10, ("'%s' exists\n", smb_fname_str_dbg(smb_fname
)));
1040 return NT_STATUS_OK
;
1043 if (errno
!= ENOENT
) {
1044 DEBUG(10, ("vfs_stat failed: %s\n", strerror(errno
)));
1045 status
= map_nt_error_from_unix(errno
);
1049 /* Fall back to a case-insensitive scan of all streams on the file. */
1050 status
= SMB_VFS_STREAMINFO(conn
, NULL
, smb_fname
->base_name
, mem_ctx
,
1051 &num_streams
, &streams
);
1053 if (NT_STATUS_EQUAL(status
, NT_STATUS_OBJECT_NAME_NOT_FOUND
)) {
1054 SET_STAT_INVALID(smb_fname
->st
);
1055 return NT_STATUS_OK
;
1058 if (!NT_STATUS_IS_OK(status
)) {
1059 DEBUG(10, ("vfs_streaminfo failed: %s\n", nt_errstr(status
)));
1063 for (i
=0; i
<num_streams
; i
++) {
1064 DEBUG(10, ("comparing [%s] and [%s]: ",
1065 smb_fname
->stream_name
, streams
[i
].name
));
1066 if (fname_equal(smb_fname
->stream_name
, streams
[i
].name
,
1067 conn
->case_sensitive
)) {
1068 DEBUGADD(10, ("equal\n"));
1071 DEBUGADD(10, ("not equal\n"));
1074 /* Couldn't find the stream. */
1075 if (i
== num_streams
) {
1076 SET_STAT_INVALID(smb_fname
->st
);
1077 TALLOC_FREE(streams
);
1078 return NT_STATUS_OK
;
1081 DEBUG(10, ("case insensitive stream. requested: %s, actual: %s\n",
1082 smb_fname
->stream_name
, streams
[i
].name
));
1085 TALLOC_FREE(smb_fname
->stream_name
);
1086 smb_fname
->stream_name
= talloc_strdup(smb_fname
, streams
[i
].name
);
1087 if (smb_fname
->stream_name
== NULL
) {
1088 status
= NT_STATUS_NO_MEMORY
;
1092 SET_STAT_INVALID(smb_fname
->st
);
1094 if (SMB_VFS_STAT(conn
, smb_fname
) == 0) {
1095 DEBUG(10, ("'%s' exists\n", smb_fname_str_dbg(smb_fname
)));
1097 status
= NT_STATUS_OK
;
1099 TALLOC_FREE(streams
);
1104 * Go through all the steps to validate a filename.
1106 * @param ctx talloc_ctx to allocate memory with.
1107 * @param conn connection struct for vfs calls.
1108 * @param dfs_path Whether this path requires dfs resolution.
1109 * @param name_in The unconverted name.
1110 * @param ucf_flags flags to pass through to unix_convert().
1111 * UCF_ALWAYS_ALLOW_WCARD_LCOMP will be OR'd in if
1112 * p_cont_wcard != NULL and is true and
1113 * UCF_COND_ALLOW_WCARD_LCOMP.
1114 * @param p_cont_wcard If not NULL, will be set to true if the dfs path
1115 * resolution detects a wildcard.
1116 * @param pp_smb_fname The final converted name will be allocated if the
1117 * return is NT_STATUS_OK.
1119 * @return NT_STATUS_OK if all operations completed succesfully, appropriate
1122 NTSTATUS
filename_convert(TALLOC_CTX
*ctx
,
1123 connection_struct
*conn
,
1125 const char *name_in
,
1127 bool *ppath_contains_wcard
,
1128 struct smb_filename
**pp_smb_fname
)
1131 bool allow_wcards
= (ucf_flags
& (UCF_COND_ALLOW_WCARD_LCOMP
|UCF_ALWAYS_ALLOW_WCARD_LCOMP
));
1134 *pp_smb_fname
= NULL
;
1136 status
= resolve_dfspath_wcard(ctx
, conn
,
1141 ppath_contains_wcard
);
1142 if (!NT_STATUS_IS_OK(status
)) {
1143 DEBUG(10,("filename_convert: resolve_dfspath failed "
1144 "for name %s with %s\n",
1146 nt_errstr(status
) ));
1150 if (is_fake_file_path(name_in
)) {
1154 status
= create_synthetic_smb_fname_split(ctx
,
1162 * If the caller conditionally allows wildcard lookups, only add the
1163 * always allow if the path actually does contain a wildcard.
1165 if (ucf_flags
& UCF_COND_ALLOW_WCARD_LCOMP
&&
1166 ppath_contains_wcard
!= NULL
&& *ppath_contains_wcard
) {
1167 ucf_flags
|= UCF_ALWAYS_ALLOW_WCARD_LCOMP
;
1170 status
= unix_convert(ctx
, conn
, fname
, pp_smb_fname
, ucf_flags
);
1171 if (!NT_STATUS_IS_OK(status
)) {
1172 DEBUG(10,("filename_convert: unix_convert failed "
1173 "for name %s with %s\n",
1175 nt_errstr(status
) ));
1179 status
= check_name(conn
, (*pp_smb_fname
)->base_name
);
1180 if (!NT_STATUS_IS_OK(status
)) {
1181 DEBUG(3,("filename_convert: check_name failed "
1182 "for name %s with %s\n",
1183 smb_fname_str_dbg(*pp_smb_fname
),
1184 nt_errstr(status
) ));
1185 TALLOC_FREE(*pp_smb_fname
);