source: branches/samba-3.3.x/source/modules/vfs_catia.c

Last change on this file was 206, checked in by Herwig Bauernfeind, 16 years ago

Import Samba 3.3 branch at 3.0.0 level (psmedley's port)
File size: 10.0 KB
Line 
1/*
2 * Catia VFS module
3 *
4 * Implement a fixed mapping of forbidden NT characters in filenames that are
5 * used a lot by the CAD package Catia.
6 *
7 * Yes, this a BAD BAD UGLY INCOMPLETE hack, but it helps quite some people
8 * out there. Catia V4 on AIX uses characters like "<*$ a *lot*, all forbidden
9 * under Windows...
10 *
11 * Copyright (C) Volker Lendecke, 2005
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 3 of the License, or
16 * (at your option) any later version.
17 *
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
22 *
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, see <http://www.gnu.org/licenses/>.
25 */
26
27
28#include "includes.h"
29
30static char *catia_string_replace(TALLOC_CTX *ctx,
31 const char *s,
32 unsigned char oldc,
33 unsigned char newc)
34{
35 smb_ucs2_t *tmpbuf = NULL;
36 smb_ucs2_t *ptr = NULL;
37 smb_ucs2_t old = oldc;
38 char *ret = NULL;
39 size_t converted_size;
40
41 if (!s) {
42 return NULL;
43 }
44
45 if (!push_ucs2_talloc(ctx, &tmpbuf, s, &converted_size)) {
46 return NULL;
47 }
48
49 ptr = tmpbuf;
50
51 for (;*ptr;ptr++) {
52 if (*ptr==old) {
53 *ptr=newc;
54 }
55 }
56
57 if (!pull_ucs2_talloc(ctx, &ret, tmpbuf, &converted_size)) {
58 TALLOC_FREE(tmpbuf);
59 return NULL;
60 }
61 TALLOC_FREE(tmpbuf);
62 return ret;
63}
64
65static char *from_unix(TALLOC_CTX *ctx, const char *s)
66{
67 char *ret = catia_string_replace(ctx, s, '\x22', '\xa8');
68 ret = catia_string_replace(ctx, ret, '\x2a', '\xa4');
69 ret = catia_string_replace(ctx, ret, '\x2f', '\xf8');
70 ret = catia_string_replace(ctx, ret, '\x3a', '\xf7');
71 ret = catia_string_replace(ctx, ret, '\x3c', '\xab');
72 ret = catia_string_replace(ctx, ret, '\x3e', '\xbb');
73 ret = catia_string_replace(ctx, ret, '\x3f', '\xbf');
74 ret = catia_string_replace(ctx, ret, '\x5c', '\xff');
75 ret = catia_string_replace(ctx, ret, '\x7c', '\xa6');
76 return catia_string_replace(ctx, ret, ' ', '\xb1');
77}
78
79static char *to_unix(TALLOC_CTX *ctx, const char *s)
80{
81 char *ret = catia_string_replace(ctx, s, '\xa8', '\x22');
82 ret = catia_string_replace(ctx, ret, '\xa4', '\x2a');
83 ret = catia_string_replace(ctx, ret, '\xf8', '\x2f');
84 ret = catia_string_replace(ctx, ret, '\xf7', '\x3a');
85 ret = catia_string_replace(ctx, ret, '\xab', '\x3c');
86 ret = catia_string_replace(ctx, ret, '\xbb', '\x3e');
87 ret = catia_string_replace(ctx, ret, '\xbf', '\x3f');
88 ret = catia_string_replace(ctx, ret, '\xff', '\x5c');
89 ret = catia_string_replace(ctx, ret, '\xa6', '\x7c');
90 return catia_string_replace(ctx, ret, '\xb1', ' ');
91}
92
93static SMB_STRUCT_DIR *catia_opendir(vfs_handle_struct *handle,
94 const char *fname, const char *mask, uint32 attr)
95{
96 char *name = to_unix(talloc_tos(), fname);
97
98 if (!name) {
99 errno = ENOMEM;
100 return NULL;
101 }
102 return SMB_VFS_NEXT_OPENDIR(handle, name, mask, attr);
103}
104
105static SMB_STRUCT_DIRENT *catia_readdir(vfs_handle_struct *handle,
106 SMB_STRUCT_DIR *dirp)
107{
108 SMB_STRUCT_DIRENT *result = SMB_VFS_NEXT_READDIR(handle, dirp);
109 SMB_STRUCT_DIRENT *newdirent;
110 char *newname;
111 size_t newnamelen;
112
113 if (result == NULL) {
114 return result;
115 }
116
117 newname = from_unix(talloc_tos(), result->d_name);
118 if (!newname) {
119 return NULL;
120 }
121 newnamelen = strlen(newname)+1;
122 newdirent = (SMB_STRUCT_DIRENT *)TALLOC_ARRAY(talloc_tos(),
123 char,
124 sizeof(SMB_STRUCT_DIRENT)+
125 newnamelen);
126 if (!newdirent) {
127 return NULL;
128 }
129 memcpy(newdirent, result, sizeof(SMB_STRUCT_DIRENT));
130 memcpy(&newdirent->d_name, newname, newnamelen);
131 return newdirent;
132}
133
134static int catia_open(vfs_handle_struct *handle,
135 const char *fname,
136 files_struct *fsp,
137 int flags,
138 mode_t mode)
139{
140 char *name = to_unix(talloc_tos(), fname);
141
142 if (!name) {
143 errno = ENOMEM;
144 return -1;
145 }
146 return SMB_VFS_NEXT_OPEN(handle, name, fsp, flags, mode);
147}
148
149static int catia_rename(vfs_handle_struct *handle,
150 const char *oldname, const char *newname)
151{
152 TALLOC_CTX *ctx = talloc_tos();
153 char *oname = to_unix(ctx, oldname);
154 char *nname = to_unix(ctx, newname);
155
156 if (!oname || !nname) {
157 errno = ENOMEM;
158 return -1;
159 }
160 DEBUG(10, ("converted old name: %s\n", oname));
161 DEBUG(10, ("converted new name: %s\n", nname));
162
163 return SMB_VFS_NEXT_RENAME(handle, oname, nname);
164}
165
166static int catia_stat(vfs_handle_struct *handle,
167 const char *fname, SMB_STRUCT_STAT *sbuf)
168{
169 char *name = to_unix(talloc_tos(), fname);
170
171 if (!name) {
172 errno = ENOMEM;
173 return -1;
174 }
175 return SMB_VFS_NEXT_STAT(handle, name, sbuf);
176}
177
178static int catia_lstat(vfs_handle_struct *handle,
179 const char *path, SMB_STRUCT_STAT *sbuf)
180{
181 char *name = to_unix(talloc_tos(), path);
182
183 if (!name) {
184 errno = ENOMEM;
185 return -1;
186 }
187 return SMB_VFS_NEXT_LSTAT(handle, name, sbuf);
188}
189
190static int catia_unlink(vfs_handle_struct *handle, const char *path)
191{
192 char *name = to_unix(talloc_tos(), path);
193
194 if (!name) {
195 errno = ENOMEM;
196 return -1;
197 }
198 return SMB_VFS_NEXT_UNLINK(handle, name);
199}
200
201static int catia_chmod(vfs_handle_struct *handle,
202 const char *path, mode_t mode)
203{
204 char *name = to_unix(talloc_tos(), path);
205
206 if (!name) {
207 errno = ENOMEM;
208 return -1;
209 }
210 return SMB_VFS_NEXT_CHMOD(handle, name, mode);
211}
212
213static int catia_chown(vfs_handle_struct *handle,
214 const char *path, uid_t uid, gid_t gid)
215{
216 char *name = to_unix(talloc_tos(), path);
217
218 if (!name) {
219 errno = ENOMEM;
220 return -1;
221 }
222 return SMB_VFS_NEXT_CHOWN(handle, name, uid, gid);
223}
224
225static int catia_lchown(vfs_handle_struct *handle,
226 const char *path, uid_t uid, gid_t gid)
227{
228 char *name = to_unix(talloc_tos(), path);
229
230 if (!name) {
231 errno = ENOMEM;
232 return -1;
233 }
234 return SMB_VFS_NEXT_LCHOWN(handle, name, uid, gid);
235}
236
237static int catia_chdir(vfs_handle_struct *handle,
238 const char *path)
239{
240 char *name = to_unix(talloc_tos(), path);
241
242 if (!name) {
243 errno = ENOMEM;
244 return -1;
245 }
246 return SMB_VFS_NEXT_CHDIR(handle, name);
247}
248
249static char *catia_getwd(vfs_handle_struct *handle, char *buf)
250{
251 return SMB_VFS_NEXT_GETWD(handle, buf);
252}
253
254static int catia_ntimes(vfs_handle_struct *handle,
255 const char *path, const struct timespec ts[2])
256{
257 return SMB_VFS_NEXT_NTIMES(handle, path, ts);
258}
259
260static bool catia_symlink(vfs_handle_struct *handle,
261 const char *oldpath, const char *newpath)
262{
263 return SMB_VFS_NEXT_SYMLINK(handle, oldpath, newpath);
264}
265
266static bool catia_readlink(vfs_handle_struct *handle,
267 const char *path, char *buf, size_t bufsiz)
268{
269 return SMB_VFS_NEXT_READLINK(handle, path, buf, bufsiz);
270}
271
272static int catia_link(vfs_handle_struct *handle,
273 const char *oldpath, const char *newpath)
274{
275 return SMB_VFS_NEXT_LINK(handle, oldpath, newpath);
276}
277
278static int catia_mknod(vfs_handle_struct *handle,
279 const char *path, mode_t mode, SMB_DEV_T dev)
280{
281 return SMB_VFS_NEXT_MKNOD(handle, path, mode, dev);
282}
283
284static char *catia_realpath(vfs_handle_struct *handle,
285 const char *path, char *resolved_path)
286{
287 return SMB_VFS_NEXT_REALPATH(handle, path, resolved_path);
288}
289
290static NTSTATUS catia_get_nt_acl(vfs_handle_struct *handle,
291 const char *name, uint32 security_info,
292 struct security_descriptor **ppdesc)
293{
294 return SMB_VFS_NEXT_GET_NT_ACL(handle, name, security_info, ppdesc);
295}
296
297static int catia_chmod_acl(vfs_handle_struct *handle,
298 const char *name, mode_t mode)
299{
300 /* If the underlying VFS doesn't have ACL support... */
301 if (!handle->vfs_next.ops.chmod_acl) {
302 errno = ENOSYS;
303 return -1;
304 }
305 return SMB_VFS_NEXT_CHMOD_ACL(handle, name, mode);
306}
307
308/* VFS operations structure */
309
310static vfs_op_tuple catia_op_tuples[] = {
311
312 /* Directory operations */
313
314 {SMB_VFS_OP(catia_opendir), SMB_VFS_OP_OPENDIR,
315SMB_VFS_LAYER_TRANSPARENT},
316 {SMB_VFS_OP(catia_readdir), SMB_VFS_OP_READDIR,
317SMB_VFS_LAYER_TRANSPARENT},
318
319 /* File operations */
320
321 {SMB_VFS_OP(catia_open), SMB_VFS_OP_OPEN,
322SMB_VFS_LAYER_TRANSPARENT},
323 {SMB_VFS_OP(catia_rename), SMB_VFS_OP_RENAME,
324 SMB_VFS_LAYER_TRANSPARENT},
325 {SMB_VFS_OP(catia_stat), SMB_VFS_OP_STAT,
326SMB_VFS_LAYER_TRANSPARENT},
327 {SMB_VFS_OP(catia_lstat), SMB_VFS_OP_LSTAT,
328SMB_VFS_LAYER_TRANSPARENT},
329 {SMB_VFS_OP(catia_unlink), SMB_VFS_OP_UNLINK,
330 SMB_VFS_LAYER_TRANSPARENT},
331 {SMB_VFS_OP(catia_chmod), SMB_VFS_OP_CHMOD,
332SMB_VFS_LAYER_TRANSPARENT},
333 {SMB_VFS_OP(catia_chown), SMB_VFS_OP_CHOWN,
334SMB_VFS_LAYER_TRANSPARENT},
335 {SMB_VFS_OP(catia_lchown), SMB_VFS_OP_LCHOWN,
336SMB_VFS_LAYER_TRANSPARENT},
337 {SMB_VFS_OP(catia_chdir), SMB_VFS_OP_CHDIR,
338SMB_VFS_LAYER_TRANSPARENT},
339 {SMB_VFS_OP(catia_getwd), SMB_VFS_OP_GETWD,
340SMB_VFS_LAYER_TRANSPARENT},
341 {SMB_VFS_OP(catia_ntimes), SMB_VFS_OP_NTIMES,
342SMB_VFS_LAYER_TRANSPARENT},
343 {SMB_VFS_OP(catia_symlink), SMB_VFS_OP_SYMLINK,
344SMB_VFS_LAYER_TRANSPARENT},
345 {SMB_VFS_OP(catia_readlink), SMB_VFS_OP_READLINK,
346SMB_VFS_LAYER_TRANSPARENT},
347 {SMB_VFS_OP(catia_link), SMB_VFS_OP_LINK,
348SMB_VFS_LAYER_TRANSPARENT},
349 {SMB_VFS_OP(catia_mknod), SMB_VFS_OP_MKNOD,
350SMB_VFS_LAYER_TRANSPARENT},
351 {SMB_VFS_OP(catia_realpath), SMB_VFS_OP_REALPATH,
352SMB_VFS_LAYER_TRANSPARENT},
353
354 /* NT File ACL operations */
355
356 {SMB_VFS_OP(catia_get_nt_acl), SMB_VFS_OP_GET_NT_ACL,
357SMB_VFS_LAYER_TRANSPARENT},
358
359 /* POSIX ACL operations */
360
361 {SMB_VFS_OP(catia_chmod_acl), SMB_VFS_OP_CHMOD_ACL,
362SMB_VFS_LAYER_TRANSPARENT},
363
364
365 {NULL, SMB_VFS_OP_NOOP,
366SMB_VFS_LAYER_NOOP}
367};
368
369NTSTATUS vfs_catia_init(void);
370NTSTATUS vfs_catia_init(void)
371{
372 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "catia",
373catia_op_tuples);
374}
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