2 * AppleTalk VFS module for Samba-3.x
4 * Copyright (C) Alexei Kotovich, 2002
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
38 #define APPLEDOUBLE ".AppleDouble"
39 #define ADOUBLEMODE 0777
43 static int atalk_build_paths(TALLOC_CTX *ctx, const char *path,
44 const char *fname, char **adbl_path, char **orig_path,
45 SMB_STRUCT_STAT *adbl_info, SMB_STRUCT_STAT *orig_info);
47 static int atalk_unlink_file(const char *path);
49 static struct vfs_ops default_vfs_ops; /* For passthrough operation */
50 static struct smb_vfs_handle_struct *atalk_handle;
52 static int atalk_get_path_ptr(char *path)
57 for (i = 0; path[i]; i ++) {
60 /* get out some 'spam';) from win32's file name */
61 else if (path[i] == ':') {
70 static int atalk_build_paths(TALLOC_CTX *ctx, const char *path, const char *fname,
71 char **adbl_path, char **orig_path,
72 SMB_STRUCT_STAT *adbl_info, SMB_STRUCT_STAT *orig_info)
79 if (!ctx || !path || !fname || !adbl_path || !orig_path ||
80 !adbl_info || !orig_info)
83 DEBUG(3, ("ATALK: PATH: %s[%s]\n", path, fname));
85 if (strstr(path, APPLEDOUBLE) || strstr(fname, APPLEDOUBLE)) {
86 DEBUG(3, ("ATALK: path %s[%s] already contains %s\n", path, fname, APPLEDOUBLE));
90 if (fname[0] == '.') ptr0 ++;
91 if (fname[1] == '/') ptr0 ++;
93 *orig_path = talloc_asprintf(ctx, "%s/%s", path, &fname[ptr0]);
95 /* get pointer to last '/' */
96 ptr1 = atalk_get_path_ptr(*orig_path);
98 sys_lstat(*orig_path, orig_info);
100 if (S_ISDIR(orig_info->st_mode)) {
101 *adbl_path = talloc_asprintf(ctx, "%s/%s/%s/",
102 path, &fname[ptr0], APPLEDOUBLE);
104 dname = talloc_strdup(ctx, *orig_path);
107 *adbl_path = talloc_asprintf(ctx, "%s/%s/%s",
108 dname, APPLEDOUBLE, &name[ptr1 + 1]);
111 DEBUG(3, ("ATALK: DEBUG:\n%s\n%s\n", *orig_path, *adbl_path));
113 sys_lstat(*adbl_path, adbl_info);
117 static int atalk_unlink_file(const char *path)
128 static void atalk_add_to_list(name_compare_entry **list)
131 name_compare_entry *new_list = 0;
132 name_compare_entry *cur_list = 0;
137 for (i = 0, count = 0; cur_list[i].name; i ++, count ++) {
138 if (strstr(cur_list[i].name, APPLEDOUBLE))
143 if (!(new_list = calloc(1,
144 (count == 0 ? 1 : count + 1) * sizeof(name_compare_entry))))
147 for (i = 0; i < count; i ++) {
148 new_list[i].name = strdup(cur_list[i].name);
149 new_list[i].is_wild = cur_list[i].is_wild;
152 new_list[i].name = strdup(APPLEDOUBLE);
153 new_list[i].is_wild = False;
155 free_namearray(*list);
162 static void atalk_rrmdir(TALLOC_CTX *ctx, char *path)
165 struct dirent *dent = 0;
173 while (NULL != (dent = readdir(dir))) {
174 if (strcmp(dent->d_name, ".") == 0 ||
175 strcmp(dent->d_name, "..") == 0)
177 if (!(dpath = talloc_asprintf(ctx, "%s/%s",
178 path, dent->d_name)))
180 atalk_unlink_file(dpath);
186 /* Disk operations */
188 /* Directory operations */
190 DIR *atalk_opendir(struct connection_struct *conn, const char *fname)
194 ret = default_vfs_ops.opendir(conn, fname);
197 * when we try to perform delete operation upon file which has fork
198 * in ./.AppleDouble and this directory wasn't hidden by Samba,
199 * MS Windows explorer causes the error: "Cannot find the specified file"
200 * There is some workaround to avoid this situation, i.e. if
201 * connection has not .AppleDouble entry in either veto or hide
202 * list then it would be nice to add one.
205 atalk_add_to_list(&conn->hide_list);
206 atalk_add_to_list(&conn->veto_list);
211 static int atalk_rmdir(struct connection_struct *conn, const char *path)
217 if (!conn || !conn->origpath || !path) goto exit_rmdir;
219 /* due to there is no way to change bDeleteVetoFiles variable
220 * from this module, gotta use talloc stuff..
223 strstr(path, APPLEDOUBLE) ? (add = False) : (add = True);
225 if (!(ctx = talloc_init("remove_directory")))
228 if (!(dpath = talloc_asprintf(ctx, "%s/%s%s",
229 conn->origpath, path, add ? "/"APPLEDOUBLE : "")))
232 atalk_rrmdir(ctx, dpath);
236 return default_vfs_ops.rmdir(conn, path);
239 /* File operations */
241 static int atalk_rename(struct connection_struct *conn, const char *old, const char *new)
246 SMB_STRUCT_STAT adbl_info;
247 SMB_STRUCT_STAT orig_info;
250 ret = default_vfs_ops.rename(conn, old, new);
252 if (!conn || !old) return ret;
254 if (!(ctx = talloc_init("rename_file")))
257 if (atalk_build_paths(ctx, conn->origpath, old, &adbl_path, &orig_path,
258 &adbl_info, &orig_info) != 0)
261 if (S_ISDIR(orig_info.st_mode) || S_ISREG(orig_info.st_mode)) {
262 DEBUG(3, ("ATALK: %s has passed..\n", adbl_path));
266 atalk_unlink_file(adbl_path);
273 static int atalk_unlink(struct connection_struct *conn, const char *path)
278 SMB_STRUCT_STAT adbl_info;
279 SMB_STRUCT_STAT orig_info;
282 ret = default_vfs_ops.unlink(conn, path);
284 if (!conn || !path) return ret;
286 /* no .AppleDouble sync if veto or hide list is empty,
287 * otherwise "Cannot find the specified file" error will be caused
290 if (!conn->veto_list) return ret;
291 if (!conn->hide_list) return ret;
293 for (i = 0; conn->veto_list[i].name; i ++) {
294 if (strstr(conn->veto_list[i].name, APPLEDOUBLE))
298 if (!conn->veto_list[i].name) {
299 for (i = 0; conn->hide_list[i].name; i ++) {
300 if (strstr(conn->hide_list[i].name, APPLEDOUBLE))
303 DEBUG(3, ("ATALK: %s is not hidden, skipped..\n",
310 if (!(ctx = talloc_init("unlink_file")))
313 if (atalk_build_paths(ctx, conn->origpath, path, &adbl_path, &orig_path,
314 &adbl_info, &orig_info) != 0)
317 if (S_ISDIR(orig_info.st_mode) || S_ISREG(orig_info.st_mode)) {
318 DEBUG(3, ("ATALK: %s has passed..\n", adbl_path));
322 atalk_unlink_file(adbl_path);
329 static int atalk_chmod(struct connection_struct *conn, const char *path, mode_t mode)
334 SMB_STRUCT_STAT adbl_info;
335 SMB_STRUCT_STAT orig_info;
338 ret = default_vfs_ops.chmod(conn, path, mode);
340 if (!conn || !path) return ret;
342 if (!(ctx = talloc_init("chmod_file")))
345 if (atalk_build_paths(ctx, conn->origpath, path, &adbl_path, &orig_path,
346 &adbl_info, &orig_info) != 0)
349 if (!S_ISDIR(orig_info.st_mode) && !S_ISREG(orig_info.st_mode)) {
350 DEBUG(3, ("ATALK: %s has passed..\n", orig_path));
354 chmod(adbl_path, ADOUBLEMODE);
361 static int atalk_chown(struct connection_struct *conn, const char *path, uid_t uid, gid_t gid)
366 SMB_STRUCT_STAT adbl_info;
367 SMB_STRUCT_STAT orig_info;
370 ret = default_vfs_ops.chown(conn, path, uid, gid);
372 if (!conn || !path) return ret;
374 if (!(ctx = talloc_init("chown_file")))
377 if (atalk_build_paths(ctx, conn->origpath, path, &adbl_path, &orig_path,
378 &adbl_info, &orig_info) != 0)
381 if (!S_ISDIR(orig_info.st_mode) && !S_ISREG(orig_info.st_mode)) {
382 DEBUG(3, ("ATALK: %s has passed..\n", orig_path));
386 chown(adbl_path, uid, gid);
393 static vfs_op_tuple atalk_ops[] = {
395 /* Directory operations */
397 {atalk_opendir, SMB_VFS_OP_OPENDIR, SMB_VFS_LAYER_TRANSPARENT},
398 {atalk_rmdir, SMB_VFS_OP_RMDIR, SMB_VFS_LAYER_TRANSPARENT},
400 /* File operations */
402 {atalk_rename, SMB_VFS_OP_RENAME, SMB_VFS_LAYER_TRANSPARENT},
403 {atalk_unlink, SMB_VFS_OP_UNLINK, SMB_VFS_LAYER_TRANSPARENT},
404 {atalk_chmod, SMB_VFS_OP_CHMOD, SMB_VFS_LAYER_TRANSPARENT},
405 {atalk_chown, SMB_VFS_OP_CHOWN, SMB_VFS_LAYER_TRANSPARENT},
407 /* Finish VFS operations definition */
409 {NULL, SMB_VFS_OP_NOOP, SMB_VFS_LAYER_NOOP}
412 /* VFS initialisation function. Return vfs_op_tuple array back to SAMBA. */
413 static vfs_op_tuple *netatalk_init(const struct vfs_ops *def_vfs_ops,
414 struct smb_vfs_handle_struct *vfs_handle)
416 memcpy(&default_vfs_ops, def_vfs_ops, sizeof(struct vfs_ops));
418 atalk_handle = vfs_handle;
420 DEBUG(3, ("ATALK: vfs module loaded\n"));
424 NTSTATUS vfs_netatalk_init(void)
426 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "netatalk", netatalk_init);