2 * AppleTalk VFS module for Samba-3.x
4 * Copyright (C) Alexei Kotovich, 2002
5 * Copyright (C) Stefan (metze) Metzmacher, 2003
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 3 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, see <http://www.gnu.org/licenses/>.
22 #include "smbd/smbd.h"
23 #include "system/filesys.h"
26 #define DBGC_CLASS DBGC_VFS
28 #define APPLEDOUBLE ".AppleDouble"
29 #define ADOUBLEMODE 0777
33 static int atalk_build_paths(TALLOC_CTX
*ctx
, const char *path
,
35 char **adbl_path
, char **orig_path
,
36 SMB_STRUCT_STAT
*adbl_info
,
37 SMB_STRUCT_STAT
*orig_info
,
38 bool fake_dir_create_times
);
40 static int atalk_unlink_file(const char *path
);
42 static int atalk_get_path_ptr(char *path
)
47 for (i
= 0; path
[i
]; i
++) {
50 /* get out some 'spam';) from win32's file name */
51 else if (path
[i
] == ':') {
60 static int atalk_build_paths(TALLOC_CTX
*ctx
, const char *path
,
62 char **adbl_path
, char **orig_path
,
63 SMB_STRUCT_STAT
*adbl_info
,
64 SMB_STRUCT_STAT
*orig_info
,
65 bool fake_dir_create_times
)
72 if (!ctx
|| !path
|| !fname
|| !adbl_path
|| !orig_path
||
73 !adbl_info
|| !orig_info
)
76 DEBUG(3, ("ATALK: PATH: %s[%s]\n", path
, fname
));
78 if (strstr(path
, APPLEDOUBLE
) || strstr(fname
, APPLEDOUBLE
)) {
79 DEBUG(3, ("ATALK: path %s[%s] already contains %s\n", path
, fname
, APPLEDOUBLE
));
83 if (fname
[0] == '.') ptr0
++;
84 if (fname
[1] == '/') ptr0
++;
86 *orig_path
= talloc_asprintf(ctx
, "%s/%s", path
, &fname
[ptr0
]);
88 /* get pointer to last '/' */
89 ptr1
= atalk_get_path_ptr(*orig_path
);
91 sys_lstat(*orig_path
, orig_info
, fake_dir_create_times
);
93 if (S_ISDIR(orig_info
->st_ex_mode
)) {
94 *adbl_path
= talloc_asprintf(ctx
, "%s/%s/%s/",
95 path
, &fname
[ptr0
], APPLEDOUBLE
);
97 dname
= talloc_strdup(ctx
, *orig_path
);
100 *adbl_path
= talloc_asprintf(ctx
, "%s/%s/%s",
101 dname
, APPLEDOUBLE
, &name
[ptr1
+ 1]);
104 DEBUG(3, ("ATALK: DEBUG:\n%s\n%s\n", *orig_path
, *adbl_path
));
106 sys_lstat(*adbl_path
, adbl_info
, fake_dir_create_times
);
110 static int atalk_unlink_file(const char *path
)
121 static void atalk_add_to_list(name_compare_entry
**list
)
124 name_compare_entry
*new_list
= 0;
125 name_compare_entry
*cur_list
= 0;
130 for (i
= 0, count
= 0; cur_list
[i
].name
; i
++, count
++) {
131 if (strstr(cur_list
[i
].name
, APPLEDOUBLE
))
136 if (!(new_list
= SMB_CALLOC_ARRAY(name_compare_entry
, count
+ 2)))
139 for (i
= 0; i
< count
; i
++) {
140 new_list
[i
].name
= SMB_STRDUP(cur_list
[i
].name
);
141 new_list
[i
].is_wild
= cur_list
[i
].is_wild
;
144 new_list
[i
].name
= SMB_STRDUP(APPLEDOUBLE
);
145 new_list
[i
].is_wild
= False
;
147 free_namearray(*list
);
154 static void atalk_rrmdir(TALLOC_CTX
*ctx
, char *path
)
157 SMB_STRUCT_DIRENT
*dent
= 0;
162 dir
= sys_opendir(path
);
165 while (NULL
!= (dent
= sys_readdir(dir
))) {
166 if (strcmp(dent
->d_name
, ".") == 0 ||
167 strcmp(dent
->d_name
, "..") == 0)
169 if (!(dpath
= talloc_asprintf(ctx
, "%s/%s",
170 path
, dent
->d_name
)))
172 atalk_unlink_file(dpath
);
178 /* Disk operations */
180 /* Directory operations */
182 static SMB_STRUCT_DIR
*atalk_opendir(struct vfs_handle_struct
*handle
, const char *fname
, const char *mask
, uint32 attr
)
184 SMB_STRUCT_DIR
*ret
= 0;
186 ret
= SMB_VFS_NEXT_OPENDIR(handle
, fname
, mask
, attr
);
189 * when we try to perform delete operation upon file which has fork
190 * in ./.AppleDouble and this directory wasn't hidden by Samba,
191 * MS Windows explorer causes the error: "Cannot find the specified file"
192 * There is some workaround to avoid this situation, i.e. if
193 * connection has not .AppleDouble entry in either veto or hide
194 * list then it would be nice to add one.
197 atalk_add_to_list(&handle
->conn
->hide_list
);
198 atalk_add_to_list(&handle
->conn
->veto_list
);
203 static SMB_STRUCT_DIR
*atalk_fdopendir(struct vfs_handle_struct
*handle
, files_struct
*fsp
, const char *mask
, uint32 attr
)
205 SMB_STRUCT_DIR
*ret
= 0;
207 ret
= SMB_VFS_NEXT_FDOPENDIR(handle
, fsp
, mask
, attr
);
214 * when we try to perform delete operation upon file which has fork
215 * in ./.AppleDouble and this directory wasn't hidden by Samba,
216 * MS Windows explorer causes the error: "Cannot find the specified file"
217 * There is some workaround to avoid this situation, i.e. if
218 * connection has not .AppleDouble entry in either veto or hide
219 * list then it would be nice to add one.
222 atalk_add_to_list(&handle
->conn
->hide_list
);
223 atalk_add_to_list(&handle
->conn
->veto_list
);
228 static int atalk_rmdir(struct vfs_handle_struct
*handle
, const char *path
)
234 if (!handle
->conn
->origpath
|| !path
) goto exit_rmdir
;
236 /* due to there is no way to change bDeleteVetoFiles variable
237 * from this module, gotta use talloc stuff..
240 strstr(path
, APPLEDOUBLE
) ? (add
= False
) : (add
= True
);
242 if (!(ctx
= talloc_init("remove_directory")))
245 if (!(dpath
= talloc_asprintf(ctx
, "%s/%s%s",
246 handle
->conn
->origpath
, path
, add
? "/"APPLEDOUBLE
: "")))
249 atalk_rrmdir(ctx
, dpath
);
253 return SMB_VFS_NEXT_RMDIR(handle
, path
);
256 /* File operations */
258 static int atalk_rename(struct vfs_handle_struct
*handle
,
259 const struct smb_filename
*smb_fname_src
,
260 const struct smb_filename
*smb_fname_dst
)
263 char *oldname
= NULL
;
264 char *adbl_path
= NULL
;
265 char *orig_path
= NULL
;
266 SMB_STRUCT_STAT adbl_info
;
267 SMB_STRUCT_STAT orig_info
;
270 ret
= SMB_VFS_NEXT_RENAME(handle
, smb_fname_src
, smb_fname_dst
);
272 status
= get_full_smb_filename(talloc_tos(), smb_fname_src
, &oldname
);
273 if (!NT_STATUS_IS_OK(status
)) {
277 if (atalk_build_paths(talloc_tos(), handle
->conn
->origpath
, oldname
,
278 &adbl_path
, &orig_path
, &adbl_info
,
279 &orig_info
, false) != 0)
282 if (S_ISDIR(orig_info
.st_ex_mode
) || S_ISREG(orig_info
.st_ex_mode
)) {
283 DEBUG(3, ("ATALK: %s has passed..\n", adbl_path
));
287 atalk_unlink_file(adbl_path
);
290 TALLOC_FREE(oldname
);
291 TALLOC_FREE(adbl_path
);
292 TALLOC_FREE(orig_path
);
296 static int atalk_unlink(struct vfs_handle_struct
*handle
,
297 const struct smb_filename
*smb_fname
)
301 char *adbl_path
= NULL
;
302 char *orig_path
= NULL
;
303 SMB_STRUCT_STAT adbl_info
;
304 SMB_STRUCT_STAT orig_info
;
307 ret
= SMB_VFS_NEXT_UNLINK(handle
, smb_fname
);
309 status
= get_full_smb_filename(talloc_tos(), smb_fname
, &path
);
310 if (!NT_STATUS_IS_OK(status
)) {
314 /* no .AppleDouble sync if veto or hide list is empty,
315 * otherwise "Cannot find the specified file" error will be caused
318 if (!handle
->conn
->veto_list
) return ret
;
319 if (!handle
->conn
->hide_list
) return ret
;
321 for (i
= 0; handle
->conn
->veto_list
[i
].name
; i
++) {
322 if (strstr(handle
->conn
->veto_list
[i
].name
, APPLEDOUBLE
))
326 if (!handle
->conn
->veto_list
[i
].name
) {
327 for (i
= 0; handle
->conn
->hide_list
[i
].name
; i
++) {
328 if (strstr(handle
->conn
->hide_list
[i
].name
, APPLEDOUBLE
))
331 DEBUG(3, ("ATALK: %s is not hidden, skipped..\n",
338 if (atalk_build_paths(talloc_tos(), handle
->conn
->origpath
, path
,
339 &adbl_path
, &orig_path
,
340 &adbl_info
, &orig_info
, false) != 0)
343 if (S_ISDIR(orig_info
.st_ex_mode
) || S_ISREG(orig_info
.st_ex_mode
)) {
344 DEBUG(3, ("ATALK: %s has passed..\n", adbl_path
));
348 atalk_unlink_file(adbl_path
);
352 TALLOC_FREE(adbl_path
);
353 TALLOC_FREE(orig_path
);
357 static int atalk_chmod(struct vfs_handle_struct
*handle
, const char *path
, mode_t mode
)
362 SMB_STRUCT_STAT adbl_info
;
363 SMB_STRUCT_STAT orig_info
;
366 ret
= SMB_VFS_NEXT_CHMOD(handle
, path
, mode
);
368 if (!path
) return ret
;
370 if (!(ctx
= talloc_init("chmod_file")))
373 if (atalk_build_paths(ctx
, handle
->conn
->origpath
, path
, &adbl_path
,
374 &orig_path
, &adbl_info
, &orig_info
,
378 if (!S_ISDIR(orig_info
.st_ex_mode
) && !S_ISREG(orig_info
.st_ex_mode
)) {
379 DEBUG(3, ("ATALK: %s has passed..\n", orig_path
));
383 chmod(adbl_path
, ADOUBLEMODE
);
390 static int atalk_chown(struct vfs_handle_struct
*handle
, const char *path
, uid_t uid
, gid_t gid
)
395 SMB_STRUCT_STAT adbl_info
;
396 SMB_STRUCT_STAT orig_info
;
399 ret
= SMB_VFS_NEXT_CHOWN(handle
, path
, uid
, gid
);
401 if (!path
) return ret
;
403 if (!(ctx
= talloc_init("chown_file")))
406 if (atalk_build_paths(ctx
, handle
->conn
->origpath
, path
,
407 &adbl_path
, &orig_path
,
408 &adbl_info
, &orig_info
, false) != 0)
411 if (!S_ISDIR(orig_info
.st_ex_mode
) && !S_ISREG(orig_info
.st_ex_mode
)) {
412 DEBUG(3, ("ATALK: %s has passed..\n", orig_path
));
416 if (chown(adbl_path
, uid
, gid
) == -1) {
417 DEBUG(3, ("ATALK: chown error %s\n", strerror(errno
)));
425 static int atalk_lchown(struct vfs_handle_struct
*handle
, const char *path
, uid_t uid
, gid_t gid
)
430 SMB_STRUCT_STAT adbl_info
;
431 SMB_STRUCT_STAT orig_info
;
434 ret
= SMB_VFS_NEXT_CHOWN(handle
, path
, uid
, gid
);
436 if (!path
) return ret
;
438 if (!(ctx
= talloc_init("lchown_file")))
441 if (atalk_build_paths(ctx
, handle
->conn
->origpath
, path
,
442 &adbl_path
, &orig_path
,
443 &adbl_info
, &orig_info
, false) != 0)
446 if (!S_ISDIR(orig_info
.st_ex_mode
) && !S_ISREG(orig_info
.st_ex_mode
)) {
447 DEBUG(3, ("ATALK: %s has passed..\n", orig_path
));
451 if (lchown(adbl_path
, uid
, gid
) == -1) {
452 DEBUG(3, ("ATALK: lchown error %s\n", strerror(errno
)));
460 static struct vfs_fn_pointers vfs_netatalk_fns
= {
461 .opendir
= atalk_opendir
,
462 .fdopendir
= atalk_fdopendir
,
463 .rmdir
= atalk_rmdir
,
464 .rename
= atalk_rename
,
465 .unlink
= atalk_unlink
,
466 .chmod
= atalk_chmod
,
467 .chown
= atalk_chown
,
468 .lchown
= atalk_lchown
,
471 NTSTATUS
vfs_netatalk_init(void);
472 NTSTATUS
vfs_netatalk_init(void)
474 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION
, "netatalk",