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 2 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, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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,
33 const char *fname, char **adbl_path, char **orig_path,
34 SMB_STRUCT_STAT *adbl_info, SMB_STRUCT_STAT *orig_info);
36 static int atalk_unlink_file(const char *path);
38 static int atalk_get_path_ptr(char *path)
43 for (i = 0; path[i]; i ++) {
46 /* get out some 'spam';) from win32's file name */
47 else if (path[i] == ':') {
56 static int atalk_build_paths(TALLOC_CTX *ctx, const char *path, const char *fname,
57 char **adbl_path, char **orig_path,
58 SMB_STRUCT_STAT *adbl_info, SMB_STRUCT_STAT *orig_info)
65 if (!ctx || !path || !fname || !adbl_path || !orig_path ||
66 !adbl_info || !orig_info)
69 DEBUG(3, ("ATALK: PATH: %s[%s]\n", path, fname));
71 if (strstr(path, APPLEDOUBLE) || strstr(fname, APPLEDOUBLE)) {
72 DEBUG(3, ("ATALK: path %s[%s] already contains %s\n", path, fname, APPLEDOUBLE));
76 if (fname[0] == '.') ptr0 ++;
77 if (fname[1] == '/') ptr0 ++;
79 *orig_path = talloc_asprintf(ctx, "%s/%s", path, &fname[ptr0]);
81 /* get pointer to last '/' */
82 ptr1 = atalk_get_path_ptr(*orig_path);
84 sys_lstat(*orig_path, orig_info);
86 if (S_ISDIR(orig_info->st_mode)) {
87 *adbl_path = talloc_asprintf(ctx, "%s/%s/%s/",
88 path, &fname[ptr0], APPLEDOUBLE);
90 dname = talloc_strdup(ctx, *orig_path);
93 *adbl_path = talloc_asprintf(ctx, "%s/%s/%s",
94 dname, APPLEDOUBLE, &name[ptr1 + 1]);
97 DEBUG(3, ("ATALK: DEBUG:\n%s\n%s\n", *orig_path, *adbl_path));
99 sys_lstat(*adbl_path, adbl_info);
103 static int atalk_unlink_file(const char *path)
114 static void atalk_add_to_list(name_compare_entry **list)
117 name_compare_entry *new_list = 0;
118 name_compare_entry *cur_list = 0;
123 for (i = 0, count = 0; cur_list[i].name; i ++, count ++) {
124 if (strstr(cur_list[i].name, APPLEDOUBLE))
129 if (!(new_list = calloc(1,
130 (count == 0 ? 1 : count + 1) * sizeof(name_compare_entry))))
133 for (i = 0; i < count; i ++) {
134 new_list[i].name = strdup(cur_list[i].name);
135 new_list[i].is_wild = cur_list[i].is_wild;
138 new_list[i].name = strdup(APPLEDOUBLE);
139 new_list[i].is_wild = False;
141 free_namearray(*list);
148 static void atalk_rrmdir(TALLOC_CTX *ctx, char *path)
151 SMB_STRUCT_DIRENT *dent = 0;
159 while (NULL != (dent = sys_readdir(dir))) {
160 if (strcmp(dent->d_name, ".") == 0 ||
161 strcmp(dent->d_name, "..") == 0)
163 if (!(dpath = talloc_asprintf(ctx, "%s/%s",
164 path, dent->d_name)))
166 atalk_unlink_file(dpath);
172 /* Disk operations */
174 /* Directory operations */
176 DIR *atalk_opendir(struct vfs_handle_struct *handle, struct connection_struct *conn, const char *fname)
180 ret = SMB_VFS_NEXT_OPENDIR(handle, conn, fname);
183 * when we try to perform delete operation upon file which has fork
184 * in ./.AppleDouble and this directory wasn't hidden by Samba,
185 * MS Windows explorer causes the error: "Cannot find the specified file"
186 * There is some workaround to avoid this situation, i.e. if
187 * connection has not .AppleDouble entry in either veto or hide
188 * list then it would be nice to add one.
191 atalk_add_to_list(&conn->hide_list);
192 atalk_add_to_list(&conn->veto_list);
197 static int atalk_rmdir(struct vfs_handle_struct *handle, struct connection_struct *conn, const char *path)
203 if (!conn || !conn->origpath || !path) goto exit_rmdir;
205 /* due to there is no way to change bDeleteVetoFiles variable
206 * from this module, gotta use talloc stuff..
209 strstr(path, APPLEDOUBLE) ? (add = False) : (add = True);
211 if (!(ctx = talloc_init("remove_directory")))
214 if (!(dpath = talloc_asprintf(ctx, "%s/%s%s",
215 conn->origpath, path, add ? "/"APPLEDOUBLE : "")))
218 atalk_rrmdir(ctx, dpath);
222 return SMB_VFS_NEXT_RMDIR(handle, conn, path);
225 /* File operations */
227 static int atalk_rename(struct vfs_handle_struct *handle, struct connection_struct *conn, const char *old, const char *new)
232 SMB_STRUCT_STAT adbl_info;
233 SMB_STRUCT_STAT orig_info;
236 ret = SMB_VFS_NEXT_RENAME(handle, conn, old, new);
238 if (!conn || !old) return ret;
240 if (!(ctx = talloc_init("rename_file")))
243 if (atalk_build_paths(ctx, conn->origpath, old, &adbl_path, &orig_path,
244 &adbl_info, &orig_info) != 0)
247 if (S_ISDIR(orig_info.st_mode) || S_ISREG(orig_info.st_mode)) {
248 DEBUG(3, ("ATALK: %s has passed..\n", adbl_path));
252 atalk_unlink_file(adbl_path);
259 static int atalk_unlink(struct vfs_handle_struct *handle, struct connection_struct *conn, const char *path)
264 SMB_STRUCT_STAT adbl_info;
265 SMB_STRUCT_STAT orig_info;
268 ret = SMB_VFS_NEXT_UNLINK(handle, conn, path);
270 if (!conn || !path) return ret;
272 /* no .AppleDouble sync if veto or hide list is empty,
273 * otherwise "Cannot find the specified file" error will be caused
276 if (!conn->veto_list) return ret;
277 if (!conn->hide_list) return ret;
279 for (i = 0; conn->veto_list[i].name; i ++) {
280 if (strstr(conn->veto_list[i].name, APPLEDOUBLE))
284 if (!conn->veto_list[i].name) {
285 for (i = 0; conn->hide_list[i].name; i ++) {
286 if (strstr(conn->hide_list[i].name, APPLEDOUBLE))
289 DEBUG(3, ("ATALK: %s is not hidden, skipped..\n",
296 if (!(ctx = talloc_init("unlink_file")))
299 if (atalk_build_paths(ctx, conn->origpath, path, &adbl_path, &orig_path,
300 &adbl_info, &orig_info) != 0)
303 if (S_ISDIR(orig_info.st_mode) || S_ISREG(orig_info.st_mode)) {
304 DEBUG(3, ("ATALK: %s has passed..\n", adbl_path));
308 atalk_unlink_file(adbl_path);
315 static int atalk_chmod(struct vfs_handle_struct *handle, struct connection_struct *conn, const char *path, mode_t mode)
320 SMB_STRUCT_STAT adbl_info;
321 SMB_STRUCT_STAT orig_info;
324 ret = SMB_VFS_NEXT_CHMOD(handle, conn, path, mode);
326 if (!conn || !path) return ret;
328 if (!(ctx = talloc_init("chmod_file")))
331 if (atalk_build_paths(ctx, conn->origpath, path, &adbl_path, &orig_path,
332 &adbl_info, &orig_info) != 0)
335 if (!S_ISDIR(orig_info.st_mode) && !S_ISREG(orig_info.st_mode)) {
336 DEBUG(3, ("ATALK: %s has passed..\n", orig_path));
340 chmod(adbl_path, ADOUBLEMODE);
347 static int atalk_chown(struct vfs_handle_struct *handle, struct connection_struct *conn, const char *path, uid_t uid, gid_t gid)
352 SMB_STRUCT_STAT adbl_info;
353 SMB_STRUCT_STAT orig_info;
356 ret = SMB_VFS_NEXT_CHOWN(handle, conn, path, uid, gid);
358 if (!conn || !path) return ret;
360 if (!(ctx = talloc_init("chown_file")))
363 if (atalk_build_paths(ctx, conn->origpath, path, &adbl_path, &orig_path,
364 &adbl_info, &orig_info) != 0)
367 if (!S_ISDIR(orig_info.st_mode) && !S_ISREG(orig_info.st_mode)) {
368 DEBUG(3, ("ATALK: %s has passed..\n", orig_path));
372 chown(adbl_path, uid, gid);
379 static vfs_op_tuple atalk_ops[] = {
381 /* Directory operations */
383 {SMB_VFS_OP(atalk_opendir), SMB_VFS_OP_OPENDIR, SMB_VFS_LAYER_TRANSPARENT},
384 {SMB_VFS_OP(atalk_rmdir), SMB_VFS_OP_RMDIR, SMB_VFS_LAYER_TRANSPARENT},
386 /* File operations */
388 {SMB_VFS_OP(atalk_rename), SMB_VFS_OP_RENAME, SMB_VFS_LAYER_TRANSPARENT},
389 {SMB_VFS_OP(atalk_unlink), SMB_VFS_OP_UNLINK, SMB_VFS_LAYER_TRANSPARENT},
390 {SMB_VFS_OP(atalk_chmod), SMB_VFS_OP_CHMOD, SMB_VFS_LAYER_TRANSPARENT},
391 {SMB_VFS_OP(atalk_chown), SMB_VFS_OP_CHOWN, SMB_VFS_LAYER_TRANSPARENT},
393 /* Finish VFS operations definition */
395 {SMB_VFS_OP(NULL), SMB_VFS_OP_NOOP, SMB_VFS_LAYER_NOOP}
398 NTSTATUS vfs_netatalk_init(void)
400 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "netatalk", atalk_ops);