source: trunk-3.0/source/modules/vfs_cap.c@ 103

Last change on this file since 103 was 22, checked in by Yuri Dario, 19 years ago

Source code upgrade to 3.0.25pre2.
File size: 15.6 KB
Line 
1/*
2 * CAP VFS module for Samba 3.x Version 0.3
3 *
4 * Copyright (C) Tim Potter, 1999-2000
5 * Copyright (C) Alexander Bokovoy, 2002-2003
6 * Copyright (C) Stefan (metze) Metzmacher, 2003
7 * Copyright (C) TAKAHASHI Motonobu (monyo), 2003
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 */
23
24
25#include "includes.h"
26
27/* cap functions */
28static char *capencode(char *to, const char *from);
29static char *capdecode(char *to, const char *from);
30
31static SMB_BIG_UINT cap_disk_free(vfs_handle_struct *handle, const char *path,
32 BOOL small_query, SMB_BIG_UINT *bsize,
33 SMB_BIG_UINT *dfree, SMB_BIG_UINT *dsize)
34{
35 pstring cappath;
36 capencode(cappath, path);
37 return SMB_VFS_NEXT_DISK_FREE(handle, cappath, small_query, bsize,
38 dfree, dsize);
39}
40
41static SMB_STRUCT_DIR *cap_opendir(vfs_handle_struct *handle, const char *fname, const char *mask, uint32 attr)
42{
43 pstring capname;
44 capencode(capname, fname);
45 return SMB_VFS_NEXT_OPENDIR(handle, capname, mask, attr);
46}
47
48static SMB_STRUCT_DIRENT *cap_readdir(vfs_handle_struct *handle, SMB_STRUCT_DIR *dirp)
49{
50 SMB_STRUCT_DIRENT *result;
51 DEBUG(3,("cap: cap_readdir\n"));
52 result = SMB_VFS_NEXT_READDIR(handle, dirp);
53 if (result) {
54 DEBUG(3,("cap: cap_readdir: %s\n", result->d_name));
55 capdecode(result->d_name, result->d_name);
56 }
57 return result;
58}
59
60static int cap_mkdir(vfs_handle_struct *handle, const char *path, mode_t mode)
61{
62 pstring cappath;
63 capencode(cappath, path);
64 return SMB_VFS_NEXT_MKDIR(handle, cappath, mode);
65}
66
67static int cap_rmdir(vfs_handle_struct *handle, const char *path)
68{
69 pstring cappath;
70 capencode(cappath, path);
71 return SMB_VFS_NEXT_RMDIR(handle, cappath);
72}
73
74static int cap_open(vfs_handle_struct *handle, const char *fname, files_struct *fsp, int flags, mode_t mode)
75{
76 pstring capname;
77 DEBUG(3,("cap: cap_open for %s\n", fname));
78 capencode(capname, fname);
79 return SMB_VFS_NEXT_OPEN(handle, capname, fsp, flags, mode);
80}
81
82static int cap_rename(vfs_handle_struct *handle, const char *oldname, const char *newname)
83{
84 pstring capold, capnew;
85 capencode(capold, oldname);
86 capencode(capnew, newname);
87
88 return SMB_VFS_NEXT_RENAME(handle, capold, capnew);
89}
90
91static int cap_stat(vfs_handle_struct *handle, const char *fname, SMB_STRUCT_STAT *sbuf)
92{
93 pstring capname;
94 capencode(capname, fname);
95 return SMB_VFS_NEXT_STAT(handle, capname, sbuf);
96}
97
98static int cap_lstat(vfs_handle_struct *handle, const char *path, SMB_STRUCT_STAT *sbuf)
99{
100 pstring cappath;
101 capencode(cappath, path);
102 return SMB_VFS_NEXT_LSTAT(handle, cappath, sbuf);
103}
104
105static int cap_unlink(vfs_handle_struct *handle, const char *path)
106{
107 pstring cappath;
108 capencode(cappath, path);
109 return SMB_VFS_NEXT_UNLINK(handle, cappath);
110}
111
112static int cap_chmod(vfs_handle_struct *handle, const char *path, mode_t mode)
113{
114 pstring cappath;
115 capencode(cappath, path);
116 return SMB_VFS_NEXT_CHMOD(handle, cappath, mode);
117}
118
119static int cap_chown(vfs_handle_struct *handle, const char *path, uid_t uid, gid_t gid)
120{
121 pstring cappath;
122 capencode(cappath, path);
123 return SMB_VFS_NEXT_CHOWN(handle, cappath, uid, gid);
124}
125
126static int cap_chdir(vfs_handle_struct *handle, const char *path)
127{
128 pstring cappath;
129 DEBUG(3,("cap: cap_chdir for %s\n", path));
130 capencode(cappath, path);
131 return SMB_VFS_NEXT_CHDIR(handle, cappath);
132}
133
134static int cap_ntimes(vfs_handle_struct *handle, const char *path, const struct timespec ts[2])
135{
136 pstring cappath;
137 capencode(cappath, path);
138 return SMB_VFS_NEXT_NTIMES(handle, cappath, ts);
139}
140
141
142static BOOL cap_symlink(vfs_handle_struct *handle, const char *oldpath, const char *newpath)
143{
144 pstring capoldpath, capnewpath;
145 capencode(capoldpath, oldpath);
146 capencode(capnewpath, newpath);
147 return SMB_VFS_NEXT_SYMLINK(handle, capoldpath, capnewpath);
148}
149
150static BOOL cap_readlink(vfs_handle_struct *handle, const char *path, char *buf, size_t bufsiz)
151{
152 pstring cappath;
153 capencode(cappath, path);
154 return SMB_VFS_NEXT_READLINK(handle, cappath, buf, bufsiz);
155}
156
157static int cap_link(vfs_handle_struct *handle, const char *oldpath, const char *newpath)
158{
159 pstring capoldpath, capnewpath;
160 capencode(capoldpath, oldpath);
161 capencode(capnewpath, newpath);
162 return SMB_VFS_NEXT_LINK(handle, capoldpath, capnewpath);
163}
164
165static int cap_mknod(vfs_handle_struct *handle, const char *path, mode_t mode, SMB_DEV_T dev)
166{
167 pstring cappath;
168 capencode(cappath, path);
169 return SMB_VFS_NEXT_MKNOD(handle, cappath, mode, dev);
170}
171
172static char *cap_realpath(vfs_handle_struct *handle, const char *path, char *resolved_path)
173{
174 /* monyo need capencode'ed and capdecode'ed? */
175 pstring cappath;
176 capencode(cappath, path);
177 return SMB_VFS_NEXT_REALPATH(handle, path, resolved_path);
178}
179
180static BOOL cap_set_nt_acl(vfs_handle_struct *handle, files_struct *fsp, const char *name, uint32 security_info_sent, struct security_descriptor_info *psd)
181{
182 pstring capname;
183 capencode(capname, name);
184 return SMB_VFS_NEXT_SET_NT_ACL(handle, fsp, capname, security_info_sent, psd);
185}
186
187static int cap_chmod_acl(vfs_handle_struct *handle, const char *name, mode_t mode)
188{
189 pstring capname;
190 capencode(capname, name);
191
192 /* If the underlying VFS doesn't have ACL support... */
193 if (!handle->vfs_next.ops.chmod_acl) {
194 errno = ENOSYS;
195 return -1;
196 }
197 return SMB_VFS_NEXT_CHMOD_ACL(handle, capname, mode);
198}
199
200static SMB_ACL_T cap_sys_acl_get_file(vfs_handle_struct *handle, const char *path_p, SMB_ACL_TYPE_T type)
201{
202 pstring cappath_p;
203 capencode(cappath_p, path_p);
204 return SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, cappath_p, type);
205}
206
207static int cap_sys_acl_set_file(vfs_handle_struct *handle, const char *name, SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl)
208{
209 pstring capname;
210 capencode(capname, name);
211 return SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, capname, acltype, theacl);
212}
213
214static int cap_sys_acl_delete_def_file(vfs_handle_struct *handle, const char *path)
215{
216 pstring cappath;
217 capencode(cappath, path);
218 return SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, cappath);
219}
220
221static ssize_t cap_getxattr(vfs_handle_struct *handle, const char *path, const char *name, void *value, size_t size)
222{
223 pstring cappath, capname;
224 capencode(cappath, path);
225 capencode(capname, name);
226 return SMB_VFS_NEXT_GETXATTR(handle, cappath, capname, value, size);
227}
228
229static ssize_t cap_lgetxattr(vfs_handle_struct *handle, const char *path, const char *name, void *value, size_t
230size)
231{
232 pstring cappath, capname;
233 capencode(cappath, path);
234 capencode(capname, name);
235 return SMB_VFS_NEXT_LGETXATTR(handle, cappath, capname, value, size);
236}
237
238static ssize_t cap_fgetxattr(vfs_handle_struct *handle, struct files_struct *fsp,int fd, const char *name, void *value, size_t size)
239{
240 pstring capname;
241 capencode(capname, name);
242 return SMB_VFS_NEXT_FGETXATTR(handle, fsp, fd, capname, value, size);
243}
244
245static ssize_t cap_listxattr(vfs_handle_struct *handle, const char *path, char *list, size_t size)
246{
247 pstring cappath;
248 capencode(cappath, path);
249 return SMB_VFS_NEXT_LISTXATTR(handle, cappath, list, size);
250}
251
252static ssize_t cap_llistxattr(vfs_handle_struct *handle, const char *path, char *list, size_t size)
253{
254 pstring cappath;
255 capencode(cappath, path);
256 return SMB_VFS_NEXT_LLISTXATTR(handle, cappath, list, size);
257}
258
259static int cap_removexattr(vfs_handle_struct *handle, const char *path, const char *name)
260{
261 pstring cappath, capname;
262 capencode(cappath, path);
263 capencode(capname, name);
264 return SMB_VFS_NEXT_REMOVEXATTR(handle, cappath, capname);
265}
266
267static int cap_lremovexattr(vfs_handle_struct *handle, const char *path, const char *name)
268{
269 pstring cappath, capname;
270 capencode(cappath, path);
271 capencode(capname, name);
272 return SMB_VFS_NEXT_LREMOVEXATTR(handle, cappath, capname);
273}
274
275static int cap_fremovexattr(vfs_handle_struct *handle, struct files_struct *fsp,int fd, const char *name)
276{
277 pstring capname;
278 capencode(capname, name);
279 return SMB_VFS_NEXT_FREMOVEXATTR(handle, fsp, fd, capname);
280}
281
282static int cap_setxattr(vfs_handle_struct *handle, const char *path, const char *name, const void *value, size_t size, int flags)
283{
284 pstring cappath, capname;
285 capencode(cappath, path);
286 capencode(capname, name);
287 return SMB_VFS_NEXT_SETXATTR(handle, cappath, capname, value, size, flags);
288}
289
290static int cap_lsetxattr(vfs_handle_struct *handle, const char *path, const char *name, const void *value, size_t size, int flags)
291{
292 pstring cappath, capname;
293 capencode(cappath, path);
294 capencode(capname, name);
295 return SMB_VFS_NEXT_LSETXATTR(handle, cappath, capname, value, size, flags);
296}
297
298static int cap_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp,int fd, const char *name, const void *value, size_t size, int flags)
299{
300 pstring capname;
301 capencode(capname, name);
302 return SMB_VFS_NEXT_FSETXATTR(handle, fsp, fd, capname, value, size, flags);
303}
304
305/* VFS operations structure */
306
307static vfs_op_tuple cap_op_tuples[] = {
308
309 /* Disk operations */
310
311 {SMB_VFS_OP(cap_disk_free), SMB_VFS_OP_DISK_FREE, SMB_VFS_LAYER_TRANSPARENT},
312
313 /* Directory operations */
314
315 {SMB_VFS_OP(cap_opendir), SMB_VFS_OP_OPENDIR, SMB_VFS_LAYER_TRANSPARENT},
316 {SMB_VFS_OP(cap_readdir), SMB_VFS_OP_READDIR, SMB_VFS_LAYER_TRANSPARENT},
317 {SMB_VFS_OP(cap_mkdir), SMB_VFS_OP_MKDIR, SMB_VFS_LAYER_TRANSPARENT},
318 {SMB_VFS_OP(cap_rmdir), SMB_VFS_OP_RMDIR, SMB_VFS_LAYER_TRANSPARENT},
319
320 /* File operations */
321
322 {SMB_VFS_OP(cap_open), SMB_VFS_OP_OPEN, SMB_VFS_LAYER_TRANSPARENT},
323 {SMB_VFS_OP(cap_rename), SMB_VFS_OP_RENAME, SMB_VFS_LAYER_TRANSPARENT},
324 {SMB_VFS_OP(cap_stat), SMB_VFS_OP_STAT, SMB_VFS_LAYER_TRANSPARENT},
325 {SMB_VFS_OP(cap_lstat), SMB_VFS_OP_LSTAT, SMB_VFS_LAYER_TRANSPARENT},
326 {SMB_VFS_OP(cap_unlink), SMB_VFS_OP_UNLINK, SMB_VFS_LAYER_TRANSPARENT},
327 {SMB_VFS_OP(cap_chmod), SMB_VFS_OP_CHMOD, SMB_VFS_LAYER_TRANSPARENT},
328 {SMB_VFS_OP(cap_chown), SMB_VFS_OP_CHOWN, SMB_VFS_LAYER_TRANSPARENT},
329 {SMB_VFS_OP(cap_chdir), SMB_VFS_OP_CHDIR, SMB_VFS_LAYER_TRANSPARENT},
330 {SMB_VFS_OP(cap_ntimes), SMB_VFS_OP_NTIMES, SMB_VFS_LAYER_TRANSPARENT},
331 {SMB_VFS_OP(cap_symlink), SMB_VFS_OP_SYMLINK, SMB_VFS_LAYER_TRANSPARENT},
332 {SMB_VFS_OP(cap_readlink), SMB_VFS_OP_READLINK, SMB_VFS_LAYER_TRANSPARENT},
333 {SMB_VFS_OP(cap_link), SMB_VFS_OP_LINK, SMB_VFS_LAYER_TRANSPARENT},
334 {SMB_VFS_OP(cap_mknod), SMB_VFS_OP_MKNOD, SMB_VFS_LAYER_TRANSPARENT},
335 {SMB_VFS_OP(cap_realpath), SMB_VFS_OP_REALPATH, SMB_VFS_LAYER_TRANSPARENT},
336
337 /* NT File ACL operations */
338
339 {SMB_VFS_OP(cap_set_nt_acl), SMB_VFS_OP_SET_NT_ACL, SMB_VFS_LAYER_TRANSPARENT},
340
341 /* POSIX ACL operations */
342
343 {SMB_VFS_OP(cap_chmod_acl), SMB_VFS_OP_CHMOD_ACL, SMB_VFS_LAYER_TRANSPARENT},
344
345 {SMB_VFS_OP(cap_sys_acl_get_file), SMB_VFS_OP_SYS_ACL_GET_FILE, SMB_VFS_LAYER_TRANSPARENT},
346 {SMB_VFS_OP(cap_sys_acl_set_file), SMB_VFS_OP_SYS_ACL_SET_FILE, SMB_VFS_LAYER_TRANSPARENT},
347 {SMB_VFS_OP(cap_sys_acl_delete_def_file), SMB_VFS_OP_SYS_ACL_DELETE_DEF_FILE, SMB_VFS_LAYER_TRANSPARENT},
348
349 /* EA operations. */
350 {SMB_VFS_OP(cap_getxattr), SMB_VFS_OP_GETXATTR, SMB_VFS_LAYER_TRANSPARENT},
351 {SMB_VFS_OP(cap_lgetxattr), SMB_VFS_OP_LGETXATTR, SMB_VFS_LAYER_TRANSPARENT},
352 {SMB_VFS_OP(cap_fgetxattr), SMB_VFS_OP_FGETXATTR, SMB_VFS_LAYER_TRANSPARENT},
353 {SMB_VFS_OP(cap_listxattr), SMB_VFS_OP_LISTXATTR, SMB_VFS_LAYER_TRANSPARENT},
354 {SMB_VFS_OP(cap_llistxattr), SMB_VFS_OP_LLISTXATTR, SMB_VFS_LAYER_TRANSPARENT},
355 {SMB_VFS_OP(cap_removexattr), SMB_VFS_OP_REMOVEXATTR, SMB_VFS_LAYER_TRANSPARENT},
356 {SMB_VFS_OP(cap_lremovexattr), SMB_VFS_OP_LREMOVEXATTR, SMB_VFS_LAYER_TRANSPARENT},
357 {SMB_VFS_OP(cap_fremovexattr), SMB_VFS_OP_FREMOVEXATTR, SMB_VFS_LAYER_TRANSPARENT},
358 {SMB_VFS_OP(cap_setxattr), SMB_VFS_OP_SETXATTR, SMB_VFS_LAYER_TRANSPARENT},
359 {SMB_VFS_OP(cap_lsetxattr), SMB_VFS_OP_LSETXATTR, SMB_VFS_LAYER_TRANSPARENT},
360 {SMB_VFS_OP(cap_fsetxattr), SMB_VFS_OP_FSETXATTR, SMB_VFS_LAYER_TRANSPARENT},
361
362 {NULL, SMB_VFS_OP_NOOP, SMB_VFS_LAYER_NOOP}
363};
364
365NTSTATUS vfs_cap_init(void);
366NTSTATUS vfs_cap_init(void)
367{
368 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "cap", cap_op_tuples);
369}
370
371/* For CAP functions */
372#define hex_tag ':'
373#define hex2bin(c) hex2bin_table[(unsigned char)(c)]
374#define bin2hex(c) bin2hex_table[(unsigned char)(c)]
375#define is_hex(s) ((s)[0] == hex_tag)
376
377static unsigned char hex2bin_table[256] = {
3780, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x00 */
3790, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x10 */
3800, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x20 */
3810, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0, /* 0x30 */
3820000, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0000, /* 0x40 */
3830000, 0000, 0000, 0000, 0000, 0000, 0000, 0000,
3840, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x50 */
3850000, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0000, /* 0x60 */
3860000, 0000, 0000, 0000, 0000, 0000, 0000, 0000,
3870, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x70 */
3880, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x80 */
3890, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x90 */
3900, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xa0 */
3910, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xb0 */
3920, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xc0 */
3930, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xd0 */
3940, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xe0 */
3950, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 /* 0xf0 */
396};
397static unsigned char bin2hex_table[256] = "0123456789abcdef";
398
399/*******************************************************************
400 original code -> ":xx" - CAP format
401********************************************************************/
402static char *capencode(char *to, const char *from)
403{
404 pstring cvtbuf;
405 char *out;
406
407 if (to == from) {
408 from = pstrcpy ((char *) cvtbuf, from);
409 }
410
411 for (out = to; *from && (out - to < sizeof(pstring)-7);) {
412 /* buffer husoku error */
413 if ((unsigned char)*from >= 0x80) {
414 *out++ = hex_tag;
415 *out++ = bin2hex (((*from)>>4)&0x0f);
416 *out++ = bin2hex ((*from)&0x0f);
417 from++;
418 }
419 else {
420 *out++ = *from++;
421 }
422 }
423 *out = '\0';
424 return to;
425}
426
427/*******************************************************************
428 CAP -> original code
429********************************************************************/
430/* ":xx" -> a byte */
431static char *capdecode(char *to, const char *from)
432{
433 pstring cvtbuf;
434 char *out;
435
436 if (to == from) {
437 from = pstrcpy ((char *) cvtbuf, from);
438 }
439 for (out = to; *from && (out - to < sizeof(pstring)-3);) {
440 if (is_hex(from)) {
441 *out++ = (hex2bin (from[1])<<4) | (hex2bin (from[2]));
442 from += 3;
443 } else {
444 *out++ = *from++;
445 }
446 }
447 *out = '\0';
448 return to;
449}
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