source: branches/samba-3.2.x/source/modules/vfs_catia.c

Last change on this file was 149, checked in by Paul Smedley, 17 years ago

Update trunk to v3.2.2
File size: 10.7 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
40 if (!s) {
41 return NULL;
42 }
43
44 if (push_ucs2_talloc(ctx, &tmpbuf, s) == -1) {
45 return NULL;
46 }
47
48 ptr = tmpbuf;
49
50 for (;*ptr;ptr++) {
51 if (*ptr==old) {
52 *ptr=newc;
53 }
54 }
55
56 if (pull_ucs2_talloc(ctx, &ret, tmpbuf) == -1) {
57 TALLOC_FREE(tmpbuf);
58 return NULL;
59 }
60 TALLOC_FREE(tmpbuf);
61 return ret;
62}
63
64static char *from_unix(TALLOC_CTX *ctx, const char *s)
65{
66 char *ret = catia_string_replace(ctx, s, '\x22', '\xa8');
67 ret = catia_string_replace(ctx, ret, '\x2a', '\xa4');
68 ret = catia_string_replace(ctx, ret, '\x2f', '\xf8');
69 ret = catia_string_replace(ctx, ret, '\x3a', '\xf7');
70 ret = catia_string_replace(ctx, ret, '\x3c', '\xab');
71 ret = catia_string_replace(ctx, ret, '\x3e', '\xbb');
72 ret = catia_string_replace(ctx, ret, '\x3f', '\xbf');
73 ret = catia_string_replace(ctx, ret, '\x5c', '\xff');
74 ret = catia_string_replace(ctx, ret, '\x7c', '\xa6');
75 return catia_string_replace(ctx, ret, ' ', '\xb1');
76}
77
78static char *to_unix(TALLOC_CTX *ctx, const char *s)
79{
80 char *ret = catia_string_replace(ctx, s, '\xa8', '\x22');
81 ret = catia_string_replace(ctx, ret, '\xa4', '\x2a');
82 ret = catia_string_replace(ctx, ret, '\xf8', '\x2f');
83 ret = catia_string_replace(ctx, ret, '\xf7', '\x3a');
84 ret = catia_string_replace(ctx, ret, '\xab', '\x3c');
85 ret = catia_string_replace(ctx, ret, '\xbb', '\x3e');
86 ret = catia_string_replace(ctx, ret, '\xbf', '\x3f');
87 ret = catia_string_replace(ctx, ret, '\xff', '\x5c');
88 ret = catia_string_replace(ctx, ret, '\xa6', '\x7c');
89 return catia_string_replace(ctx, ret, '\xb1', ' ');
90}
91
92static SMB_STRUCT_DIR *catia_opendir(vfs_handle_struct *handle,
93 const char *fname, const char *mask, uint32 attr)
94{
95 char *name = to_unix(talloc_tos(), fname);
96
97 if (!name) {
98 errno = ENOMEM;
99 return NULL;
100 }
101 return SMB_VFS_NEXT_OPENDIR(handle, name, mask, attr);
102}
103
104static SMB_STRUCT_DIRENT *catia_readdir(vfs_handle_struct *handle,
105 SMB_STRUCT_DIR *dirp)
106{
107 SMB_STRUCT_DIRENT *result = SMB_VFS_NEXT_READDIR(handle, dirp);
108 SMB_STRUCT_DIRENT *newdirent;
109 char *newname;
110 size_t newnamelen;
111
112 if (result == NULL) {
113 return result;
114 }
115
116 newname = from_unix(talloc_tos(), result->d_name);
117 if (!newname) {
118 return NULL;
119 }
120 newnamelen = strlen(newname)+1;
121 newdirent = (SMB_STRUCT_DIRENT *)TALLOC_ARRAY(talloc_tos(),
122 char,
123 sizeof(SMB_STRUCT_DIRENT)+
124 newnamelen);
125 if (!newdirent) {
126 return NULL;
127 }
128 memcpy(newdirent, result, sizeof(SMB_STRUCT_DIRENT));
129 memcpy(&newdirent->d_name, newname, newnamelen);
130 return newdirent;
131}
132
133static int catia_open(vfs_handle_struct *handle,
134 const char *fname,
135 files_struct *fsp,
136 int flags,
137 mode_t mode)
138{
139 char *name = to_unix(talloc_tos(), fname);
140
141 if (!name) {
142 errno = ENOMEM;
143 return -1;
144 }
145 return SMB_VFS_NEXT_OPEN(handle, name, fsp, flags, mode);
146}
147
148static int catia_rename(vfs_handle_struct *handle,
149 const char *oldname, const char *newname)
150{
151 TALLOC_CTX *ctx = talloc_tos();
152 char *oname = to_unix(ctx, oldname);
153 char *nname = to_unix(ctx, newname);
154
155 if (!oname || !nname) {
156 errno = ENOMEM;
157 return -1;
158 }
159 DEBUG(10, ("converted old name: %s\n", oname));
160 DEBUG(10, ("converted new name: %s\n", nname));
161
162 return SMB_VFS_NEXT_RENAME(handle, oname, nname);
163}
164
165static int catia_stat(vfs_handle_struct *handle,
166 const char *fname, SMB_STRUCT_STAT *sbuf)
167{
168 char *name = to_unix(talloc_tos(), fname);
169
170 if (!name) {
171 errno = ENOMEM;
172 return -1;
173 }
174 return SMB_VFS_NEXT_STAT(handle, name, sbuf);
175}
176
177static int catia_lstat(vfs_handle_struct *handle,
178 const char *path, SMB_STRUCT_STAT *sbuf)
179{
180 char *name = to_unix(talloc_tos(), path);
181
182 if (!name) {
183 errno = ENOMEM;
184 return -1;
185 }
186 return SMB_VFS_NEXT_LSTAT(handle, name, sbuf);
187}
188
189static int catia_unlink(vfs_handle_struct *handle, const char *path)
190{
191 char *name = to_unix(talloc_tos(), path);
192
193 if (!name) {
194 errno = ENOMEM;
195 return -1;
196 }
197 return SMB_VFS_NEXT_UNLINK(handle, name);
198}
199
200static int catia_chmod(vfs_handle_struct *handle,
201 const char *path, mode_t mode)
202{
203 char *name = to_unix(talloc_tos(), path);
204
205 if (!name) {
206 errno = ENOMEM;
207 return -1;
208 }
209 return SMB_VFS_NEXT_CHMOD(handle, name, mode);
210}
211
212static int catia_chown(vfs_handle_struct *handle,
213 const char *path, uid_t uid, gid_t gid)
214{
215 char *name = to_unix(talloc_tos(), path);
216
217 if (!name) {
218 errno = ENOMEM;
219 return -1;
220 }
221 return SMB_VFS_NEXT_CHOWN(handle, name, uid, gid);
222}
223
224static int catia_lchown(vfs_handle_struct *handle,
225 const char *path, uid_t uid, gid_t gid)
226{
227 char *name = to_unix(talloc_tos(), path);
228
229 if (!name) {
230 errno = ENOMEM;
231 return -1;
232 }
233 return SMB_VFS_NEXT_LCHOWN(handle, name, uid, gid);
234}
235
236static int catia_chdir(vfs_handle_struct *handle,
237 const char *path)
238{
239 char *name = to_unix(talloc_tos(), path);
240
241 if (!name) {
242 errno = ENOMEM;
243 return -1;
244 }
245 return SMB_VFS_NEXT_CHDIR(handle, name);
246}
247
248static char *catia_getwd(vfs_handle_struct *handle, char *buf)
249{
250 return SMB_VFS_NEXT_GETWD(handle, buf);
251}
252
253static int catia_ntimes(vfs_handle_struct *handle,
254 const char *path, const struct timespec ts[2])
255{
256 return SMB_VFS_NEXT_NTIMES(handle, path, ts);
257}
258
259static bool catia_symlink(vfs_handle_struct *handle,
260 const char *oldpath, const char *newpath)
261{
262 return SMB_VFS_NEXT_SYMLINK(handle, oldpath, newpath);
263}
264
265static bool catia_readlink(vfs_handle_struct *handle,
266 const char *path, char *buf, size_t bufsiz)
267{
268 return SMB_VFS_NEXT_READLINK(handle, path, buf, bufsiz);
269}
270
271static int catia_link(vfs_handle_struct *handle,
272 const char *oldpath, const char *newpath)
273{
274 return SMB_VFS_NEXT_LINK(handle, oldpath, newpath);
275}
276
277static int catia_mknod(vfs_handle_struct *handle,
278 const char *path, mode_t mode, SMB_DEV_T dev)
279{
280 return SMB_VFS_NEXT_MKNOD(handle, path, mode, dev);
281}
282
283static char *catia_realpath(vfs_handle_struct *handle,
284 const char *path, char *resolved_path)
285{
286 return SMB_VFS_NEXT_REALPATH(handle, path, resolved_path);
287}
288
289static NTSTATUS catia_get_nt_acl(vfs_handle_struct *handle,
290 const char *name, uint32 security_info,
291 struct security_descriptor **ppdesc)
292{
293 return SMB_VFS_NEXT_GET_NT_ACL(handle, name, security_info, ppdesc);
294}
295
296static NTSTATUS catia_set_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
297 const char *name, uint32 security_info_sent,
298 struct security_descriptor *psd)
299{
300 return SMB_VFS_NEXT_SET_NT_ACL(handle, fsp, name, security_info_sent,
301 psd);
302}
303
304static int catia_chmod_acl(vfs_handle_struct *handle,
305 const char *name, mode_t mode)
306{
307 /* If the underlying VFS doesn't have ACL support... */
308 if (!handle->vfs_next.ops.chmod_acl) {
309 errno = ENOSYS;
310 return -1;
311 }
312 return SMB_VFS_NEXT_CHMOD_ACL(handle, name, mode);
313}
314
315/* VFS operations structure */
316
317static vfs_op_tuple catia_op_tuples[] = {
318
319 /* Directory operations */
320
321 {SMB_VFS_OP(catia_opendir), SMB_VFS_OP_OPENDIR,
322SMB_VFS_LAYER_TRANSPARENT},
323 {SMB_VFS_OP(catia_readdir), SMB_VFS_OP_READDIR,
324SMB_VFS_LAYER_TRANSPARENT},
325
326 /* File operations */
327
328 {SMB_VFS_OP(catia_open), SMB_VFS_OP_OPEN,
329SMB_VFS_LAYER_TRANSPARENT},
330 {SMB_VFS_OP(catia_rename), SMB_VFS_OP_RENAME,
331 SMB_VFS_LAYER_TRANSPARENT},
332 {SMB_VFS_OP(catia_stat), SMB_VFS_OP_STAT,
333SMB_VFS_LAYER_TRANSPARENT},
334 {SMB_VFS_OP(catia_lstat), SMB_VFS_OP_LSTAT,
335SMB_VFS_LAYER_TRANSPARENT},
336 {SMB_VFS_OP(catia_unlink), SMB_VFS_OP_UNLINK,
337 SMB_VFS_LAYER_TRANSPARENT},
338 {SMB_VFS_OP(catia_chmod), SMB_VFS_OP_CHMOD,
339SMB_VFS_LAYER_TRANSPARENT},
340 {SMB_VFS_OP(catia_chown), SMB_VFS_OP_CHOWN,
341SMB_VFS_LAYER_TRANSPARENT},
342 {SMB_VFS_OP(catia_lchown), SMB_VFS_OP_LCHOWN,
343SMB_VFS_LAYER_TRANSPARENT},
344 {SMB_VFS_OP(catia_chdir), SMB_VFS_OP_CHDIR,
345SMB_VFS_LAYER_TRANSPARENT},
346 {SMB_VFS_OP(catia_getwd), SMB_VFS_OP_GETWD,
347SMB_VFS_LAYER_TRANSPARENT},
348 {SMB_VFS_OP(catia_ntimes), SMB_VFS_OP_NTIMES,
349SMB_VFS_LAYER_TRANSPARENT},
350 {SMB_VFS_OP(catia_symlink), SMB_VFS_OP_SYMLINK,
351SMB_VFS_LAYER_TRANSPARENT},
352 {SMB_VFS_OP(catia_readlink), SMB_VFS_OP_READLINK,
353SMB_VFS_LAYER_TRANSPARENT},
354 {SMB_VFS_OP(catia_link), SMB_VFS_OP_LINK,
355SMB_VFS_LAYER_TRANSPARENT},
356 {SMB_VFS_OP(catia_mknod), SMB_VFS_OP_MKNOD,
357SMB_VFS_LAYER_TRANSPARENT},
358 {SMB_VFS_OP(catia_realpath), SMB_VFS_OP_REALPATH,
359SMB_VFS_LAYER_TRANSPARENT},
360
361 /* NT File ACL operations */
362
363 {SMB_VFS_OP(catia_get_nt_acl), SMB_VFS_OP_GET_NT_ACL,
364SMB_VFS_LAYER_TRANSPARENT},
365 {SMB_VFS_OP(catia_set_nt_acl), SMB_VFS_OP_SET_NT_ACL,
366SMB_VFS_LAYER_TRANSPARENT},
367
368 /* POSIX ACL operations */
369
370 {SMB_VFS_OP(catia_chmod_acl), SMB_VFS_OP_CHMOD_ACL,
371SMB_VFS_LAYER_TRANSPARENT},
372
373
374 {NULL, SMB_VFS_OP_NOOP,
375SMB_VFS_LAYER_NOOP}
376};
377
378NTSTATUS vfs_catia_init(void);
379NTSTATUS vfs_catia_init(void)
380{
381 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "catia",
382catia_op_tuples);
383}
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