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",