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 "system/filesys.h"
25 #define DBGC_CLASS DBGC_VFS
27 #define APPLEDOUBLE ".AppleDouble"
28 #define ADOUBLEMODE 0777
32 static int atalk_build_paths(TALLOC_CTX *ctx, const char *path,
34 char **adbl_path, char **orig_path,
35 SMB_STRUCT_STAT *adbl_info,
36 SMB_STRUCT_STAT *orig_info,
37 bool fake_dir_create_times);
39 static int atalk_unlink_file(const char *path);
41 static int atalk_get_path_ptr(char *path)
46 for (i = 0; path[i]; i ++) {
49 /* get out some 'spam';) from win32's file name */
50 else if (path[i] == ':') {
59 static int atalk_build_paths(TALLOC_CTX *ctx, const char *path,
61 char **adbl_path, char **orig_path,
62 SMB_STRUCT_STAT *adbl_info,
63 SMB_STRUCT_STAT *orig_info,
64 bool fake_dir_create_times)
71 if (!ctx || !path || !fname || !adbl_path || !orig_path ||
72 !adbl_info || !orig_info)
75 DEBUG(3, ("ATALK: PATH: %s[%s]\n", path, fname));
77 if (strstr(path, APPLEDOUBLE) || strstr(fname, APPLEDOUBLE)) {
78 DEBUG(3, ("ATALK: path %s[%s] already contains %s\n", path, fname, APPLEDOUBLE));
82 if (fname[0] == '.') ptr0 ++;
83 if (fname[1] == '/') ptr0 ++;
85 *orig_path = talloc_asprintf(ctx, "%s/%s", path, &fname[ptr0]);
87 /* get pointer to last '/' */
88 ptr1 = atalk_get_path_ptr(*orig_path);
90 sys_lstat(*orig_path, orig_info, fake_dir_create_times);
92 if (S_ISDIR(orig_info->st_ex_mode)) {
93 *adbl_path = talloc_asprintf(ctx, "%s/%s/%s/",
94 path, &fname[ptr0], APPLEDOUBLE);
96 dname = talloc_strdup(ctx, *orig_path);
99 *adbl_path = talloc_asprintf(ctx, "%s/%s/%s",
100 dname, APPLEDOUBLE, &name[ptr1 + 1]);
103 DEBUG(3, ("ATALK: DEBUG:\n%s\n%s\n", *orig_path, *adbl_path));
105 sys_lstat(*adbl_path, adbl_info, fake_dir_create_times);
109 static int atalk_unlink_file(const char *path)
120 static void atalk_add_to_list(name_compare_entry **list)
123 name_compare_entry *new_list = 0;
124 name_compare_entry *cur_list = 0;
129 for (i = 0, count = 0; cur_list[i].name; i ++, count ++) {
130 if (strstr(cur_list[i].name, APPLEDOUBLE))
135 if (!(new_list = SMB_CALLOC_ARRAY(name_compare_entry, count + 2)))
138 for (i = 0; i < count; i ++) {
139 new_list[i].name = SMB_STRDUP(cur_list[i].name);
140 new_list[i].is_wild = cur_list[i].is_wild;
143 new_list[i].name = SMB_STRDUP(APPLEDOUBLE);
144 new_list[i].is_wild = False;
146 free_namearray(*list);
153 static void atalk_rrmdir(TALLOC_CTX *ctx, char *path)
156 SMB_STRUCT_DIRENT *dent = 0;
161 dir = sys_opendir(path);
164 while (NULL != (dent = sys_readdir(dir))) {
165 if (strcmp(dent->d_name, ".") == 0 ||
166 strcmp(dent->d_name, "..") == 0)
168 if (!(dpath = talloc_asprintf(ctx, "%s/%s",
169 path, dent->d_name)))
171 atalk_unlink_file(dpath);
177 /* Disk operations */
179 /* Directory operations */
181 static SMB_STRUCT_DIR *atalk_opendir(struct vfs_handle_struct *handle, const char *fname, const char *mask, uint32 attr)
183 SMB_STRUCT_DIR *ret = 0;
185 ret = SMB_VFS_NEXT_OPENDIR(handle, fname, mask, attr);
188 * when we try to perform delete operation upon file which has fork
189 * in ./.AppleDouble and this directory wasn't hidden by Samba,
190 * MS Windows explorer causes the error: "Cannot find the specified file"
191 * There is some workaround to avoid this situation, i.e. if
192 * connection has not .AppleDouble entry in either veto or hide
193 * list then it would be nice to add one.
196 atalk_add_to_list(&handle->conn->hide_list);
197 atalk_add_to_list(&handle->conn->veto_list);
202 static SMB_STRUCT_DIR *atalk_fdopendir(struct vfs_handle_struct *handle, files_struct *fsp, const char *mask, uint32 attr)
204 SMB_STRUCT_DIR *ret = 0;
206 ret = SMB_VFS_NEXT_FDOPENDIR(handle, fsp, mask, attr);
213 * when we try to perform delete operation upon file which has fork
214 * in ./.AppleDouble and this directory wasn't hidden by Samba,
215 * MS Windows explorer causes the error: "Cannot find the specified file"
216 * There is some workaround to avoid this situation, i.e. if
217 * connection has not .AppleDouble entry in either veto or hide
218 * list then it would be nice to add one.
221 atalk_add_to_list(&handle->conn->hide_list);
222 atalk_add_to_list(&handle->conn->veto_list);
227 static int atalk_rmdir(struct vfs_handle_struct *handle, const char *path)
233 if (!handle->conn->origpath || !path) goto exit_rmdir;
235 /* due to there is no way to change bDeleteVetoFiles variable
236 * from this module, gotta use talloc stuff..
239 strstr(path, APPLEDOUBLE) ? (add = False) : (add = True);
241 if (!(ctx = talloc_init("remove_directory")))
244 if (!(dpath = talloc_asprintf(ctx, "%s/%s%s",
245 handle->conn->origpath, path, add ? "/"APPLEDOUBLE : "")))
248 atalk_rrmdir(ctx, dpath);
252 return SMB_VFS_NEXT_RMDIR(handle, path);
255 /* File operations */
257 static int atalk_rename(struct vfs_handle_struct *handle,
258 const struct smb_filename *smb_fname_src,
259 const struct smb_filename *smb_fname_dst)
262 char *oldname = NULL;
263 char *adbl_path = NULL;
264 char *orig_path = NULL;
265 SMB_STRUCT_STAT adbl_info;
266 SMB_STRUCT_STAT orig_info;
269 ret = SMB_VFS_NEXT_RENAME(handle, smb_fname_src, smb_fname_dst);
271 status = get_full_smb_filename(talloc_tos(), smb_fname_src, &oldname);
272 if (!NT_STATUS_IS_OK(status)) {
276 if (atalk_build_paths(talloc_tos(), handle->conn->origpath, oldname,
277 &adbl_path, &orig_path, &adbl_info,
278 &orig_info, false) != 0)
281 if (S_ISDIR(orig_info.st_ex_mode) || S_ISREG(orig_info.st_ex_mode)) {
282 DEBUG(3, ("ATALK: %s has passed..\n", adbl_path));
286 atalk_unlink_file(adbl_path);
289 TALLOC_FREE(oldname);
290 TALLOC_FREE(adbl_path);
291 TALLOC_FREE(orig_path);
295 static int atalk_unlink(struct vfs_handle_struct *handle,
296 const struct smb_filename *smb_fname)
300 char *adbl_path = NULL;
301 char *orig_path = NULL;
302 SMB_STRUCT_STAT adbl_info;
303 SMB_STRUCT_STAT orig_info;
306 ret = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
308 status = get_full_smb_filename(talloc_tos(), smb_fname, &path);
309 if (!NT_STATUS_IS_OK(status)) {
313 /* no .AppleDouble sync if veto or hide list is empty,
314 * otherwise "Cannot find the specified file" error will be caused
317 if (!handle->conn->veto_list) return ret;
318 if (!handle->conn->hide_list) return ret;
320 for (i = 0; handle->conn->veto_list[i].name; i ++) {
321 if (strstr(handle->conn->veto_list[i].name, APPLEDOUBLE))
325 if (!handle->conn->veto_list[i].name) {
326 for (i = 0; handle->conn->hide_list[i].name; i ++) {
327 if (strstr(handle->conn->hide_list[i].name, APPLEDOUBLE))
330 DEBUG(3, ("ATALK: %s is not hidden, skipped..\n",
337 if (atalk_build_paths(talloc_tos(), handle->conn->origpath, path,
338 &adbl_path, &orig_path,
339 &adbl_info, &orig_info, false) != 0)
342 if (S_ISDIR(orig_info.st_ex_mode) || S_ISREG(orig_info.st_ex_mode)) {
343 DEBUG(3, ("ATALK: %s has passed..\n", adbl_path));
347 atalk_unlink_file(adbl_path);
351 TALLOC_FREE(adbl_path);
352 TALLOC_FREE(orig_path);
356 static int atalk_chmod(struct vfs_handle_struct *handle, const char *path, mode_t mode)
361 SMB_STRUCT_STAT adbl_info;
362 SMB_STRUCT_STAT orig_info;
365 ret = SMB_VFS_NEXT_CHMOD(handle, path, mode);
367 if (!path) return ret;
369 if (!(ctx = talloc_init("chmod_file")))
372 if (atalk_build_paths(ctx, handle->conn->origpath, path, &adbl_path,
373 &orig_path, &adbl_info, &orig_info,
377 if (!S_ISDIR(orig_info.st_ex_mode) && !S_ISREG(orig_info.st_ex_mode)) {
378 DEBUG(3, ("ATALK: %s has passed..\n", orig_path));
382 chmod(adbl_path, ADOUBLEMODE);
389 static int atalk_chown(struct vfs_handle_struct *handle, const char *path, uid_t uid, gid_t gid)
394 SMB_STRUCT_STAT adbl_info;
395 SMB_STRUCT_STAT orig_info;
398 ret = SMB_VFS_NEXT_CHOWN(handle, path, uid, gid);
400 if (!path) return ret;
402 if (!(ctx = talloc_init("chown_file")))
405 if (atalk_build_paths(ctx, handle->conn->origpath, path,
406 &adbl_path, &orig_path,
407 &adbl_info, &orig_info, false) != 0)
410 if (!S_ISDIR(orig_info.st_ex_mode) && !S_ISREG(orig_info.st_ex_mode)) {
411 DEBUG(3, ("ATALK: %s has passed..\n", orig_path));
415 if (chown(adbl_path, uid, gid) == -1) {
416 DEBUG(3, ("ATALK: chown error %s\n", strerror(errno)));
424 static int atalk_lchown(struct vfs_handle_struct *handle, const char *path, uid_t uid, gid_t gid)
429 SMB_STRUCT_STAT adbl_info;
430 SMB_STRUCT_STAT orig_info;
433 ret = SMB_VFS_NEXT_CHOWN(handle, path, uid, gid);
435 if (!path) return ret;
437 if (!(ctx = talloc_init("lchown_file")))
440 if (atalk_build_paths(ctx, handle->conn->origpath, path,
441 &adbl_path, &orig_path,
442 &adbl_info, &orig_info, false) != 0)
445 if (!S_ISDIR(orig_info.st_ex_mode) && !S_ISREG(orig_info.st_ex_mode)) {
446 DEBUG(3, ("ATALK: %s has passed..\n", orig_path));
450 if (lchown(adbl_path, uid, gid) == -1) {
451 DEBUG(3, ("ATALK: lchown error %s\n", strerror(errno)));
459 static struct vfs_fn_pointers vfs_netatalk_fns = {
460 .opendir = atalk_opendir,
461 .fdopendir = atalk_fdopendir,
462 .rmdir = atalk_rmdir,
463 .rename = atalk_rename,
464 .unlink = atalk_unlink,
465 .chmod = atalk_chmod,
466 .chown = atalk_chown,
467 .lchown = atalk_lchown,
470 NTSTATUS vfs_netatalk_init(void);
471 NTSTATUS vfs_netatalk_init(void)
473 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "netatalk",