2 * CAP VFS module for Samba 3.x Version 0.3
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 * Copyright (C) Jeremy Allison, 2007
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 3 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, see <http://www.gnu.org/licenses/>.
28 static char *capencode(TALLOC_CTX *ctx, const char *from);
29 static char *capdecode(TALLOC_CTX *ctx, const char *from);
31 static uint64_t cap_disk_free(vfs_handle_struct *handle, const char *path,
32 bool small_query, uint64_t *bsize,
33 uint64_t *dfree, uint64_t *dsize)
35 char *cappath = capencode(talloc_tos(), path);
41 return SMB_VFS_NEXT_DISK_FREE(handle, cappath, small_query, bsize,
45 static SMB_STRUCT_DIR *cap_opendir(vfs_handle_struct *handle, const char *fname, const char *mask, uint32 attr)
47 char *capname = capencode(talloc_tos(), fname);
53 return SMB_VFS_NEXT_OPENDIR(handle, capname, mask, attr);
56 static SMB_STRUCT_DIRENT *cap_readdir(vfs_handle_struct *handle, SMB_STRUCT_DIR *dirp)
58 SMB_STRUCT_DIRENT *result;
59 SMB_STRUCT_DIRENT *newdirent;
62 DEBUG(3,("cap: cap_readdir\n"));
64 result = SMB_VFS_NEXT_READDIR(handle, dirp, NULL);
69 newname = capdecode(talloc_tos(), result->d_name);
73 DEBUG(3,("cap: cap_readdir: %s\n", newname));
74 newnamelen = strlen(newname)+1;
75 newdirent = (SMB_STRUCT_DIRENT *)TALLOC_ARRAY(talloc_tos(),
77 sizeof(SMB_STRUCT_DIRENT)+
82 memcpy(newdirent, result, sizeof(SMB_STRUCT_DIRENT));
83 memcpy(&newdirent->d_name, newname, newnamelen);
87 static int cap_mkdir(vfs_handle_struct *handle, const char *path, mode_t mode)
89 char *cappath = capencode(talloc_tos(), path);
95 return SMB_VFS_NEXT_MKDIR(handle, cappath, mode);
98 static int cap_rmdir(vfs_handle_struct *handle, const char *path)
100 char *cappath = capencode(talloc_tos(), path);
106 return SMB_VFS_NEXT_RMDIR(handle, cappath);
109 static int cap_open(vfs_handle_struct *handle, struct smb_filename *smb_fname,
110 files_struct *fsp, int flags, mode_t mode)
113 char *tmp_base_name = NULL;
116 cappath = capencode(talloc_tos(), smb_fname->base_name);
123 tmp_base_name = smb_fname->base_name;
124 smb_fname->base_name = cappath;
126 DEBUG(3,("cap: cap_open for %s\n", smb_fname_str_dbg(smb_fname)));
127 ret = SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
129 smb_fname->base_name = tmp_base_name;
130 TALLOC_FREE(cappath);
135 static int cap_rename(vfs_handle_struct *handle,
136 const struct smb_filename *smb_fname_src,
137 const struct smb_filename *smb_fname_dst)
141 struct smb_filename *smb_fname_src_tmp = NULL;
142 struct smb_filename *smb_fname_dst_tmp = NULL;
146 capold = capencode(talloc_tos(), smb_fname_src->base_name);
147 capnew = capencode(talloc_tos(), smb_fname_dst->base_name);
148 if (!capold || !capnew) {
153 /* Setup temporary smb_filename structs. */
154 status = copy_smb_filename(talloc_tos(), smb_fname_src,
156 if (!NT_STATUS_IS_OK(status)) {
157 errno = map_errno_from_nt_status(status);
160 status = copy_smb_filename(talloc_tos(), smb_fname_dst,
162 if (!NT_STATUS_IS_OK(status)) {
163 errno = map_errno_from_nt_status(status);
167 smb_fname_src_tmp->base_name = capold;
168 smb_fname_dst_tmp->base_name = capnew;
170 ret = SMB_VFS_NEXT_RENAME(handle, smb_fname_src_tmp,
175 TALLOC_FREE(smb_fname_src_tmp);
176 TALLOC_FREE(smb_fname_dst_tmp);
181 static int cap_stat(vfs_handle_struct *handle, struct smb_filename *smb_fname)
184 char *tmp_base_name = NULL;
187 cappath = capencode(talloc_tos(), smb_fname->base_name);
194 tmp_base_name = smb_fname->base_name;
195 smb_fname->base_name = cappath;
197 ret = SMB_VFS_NEXT_STAT(handle, smb_fname);
199 smb_fname->base_name = tmp_base_name;
200 TALLOC_FREE(cappath);
205 static int cap_lstat(vfs_handle_struct *handle, struct smb_filename *smb_fname)
208 char *tmp_base_name = NULL;
211 cappath = capencode(talloc_tos(), smb_fname->base_name);
218 tmp_base_name = smb_fname->base_name;
219 smb_fname->base_name = cappath;
221 ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
223 smb_fname->base_name = tmp_base_name;
224 TALLOC_FREE(cappath);
229 static int cap_unlink(vfs_handle_struct *handle,
230 const struct smb_filename *smb_fname)
232 struct smb_filename *smb_fname_tmp = NULL;
233 char *cappath = NULL;
237 cappath = capencode(talloc_tos(), smb_fname->base_name);
243 /* Setup temporary smb_filename structs. */
244 status = copy_smb_filename(talloc_tos(), smb_fname,
246 if (!NT_STATUS_IS_OK(status)) {
247 errno = map_errno_from_nt_status(status);
251 smb_fname_tmp->base_name = cappath;
253 ret = SMB_VFS_NEXT_UNLINK(handle, smb_fname_tmp);
255 TALLOC_FREE(smb_fname_tmp);
259 static int cap_chmod(vfs_handle_struct *handle, const char *path, mode_t mode)
261 char *cappath = capencode(talloc_tos(), path);
267 return SMB_VFS_NEXT_CHMOD(handle, cappath, mode);
270 static int cap_chown(vfs_handle_struct *handle, const char *path, uid_t uid, gid_t gid)
272 char *cappath = capencode(talloc_tos(), path);
278 return SMB_VFS_NEXT_CHOWN(handle, cappath, uid, gid);
281 static int cap_lchown(vfs_handle_struct *handle, const char *path, uid_t uid, gid_t gid)
283 char *cappath = capencode(talloc_tos(), path);
289 return SMB_VFS_NEXT_LCHOWN(handle, cappath, uid, gid);
292 static int cap_chdir(vfs_handle_struct *handle, const char *path)
294 char *cappath = capencode(talloc_tos(), path);
300 DEBUG(3,("cap: cap_chdir for %s\n", path));
301 return SMB_VFS_NEXT_CHDIR(handle, cappath);
304 static int cap_ntimes(vfs_handle_struct *handle, const char *path,
305 struct smb_file_time *ft)
307 char *cappath = capencode(talloc_tos(), path);
313 return SMB_VFS_NEXT_NTIMES(handle, cappath, ft);
317 static bool cap_symlink(vfs_handle_struct *handle, const char *oldpath, const char *newpath)
319 char *capold = capencode(talloc_tos(), oldpath);
320 char *capnew = capencode(talloc_tos(), newpath);
322 if (!capold || !capnew) {
326 return SMB_VFS_NEXT_SYMLINK(handle, capold, capnew);
329 static bool cap_readlink(vfs_handle_struct *handle, const char *path, char *buf, size_t bufsiz)
331 char *cappath = capencode(talloc_tos(), path);
337 return SMB_VFS_NEXT_READLINK(handle, cappath, buf, bufsiz);
340 static int cap_link(vfs_handle_struct *handle, const char *oldpath, const char *newpath)
342 char *capold = capencode(talloc_tos(), oldpath);
343 char *capnew = capencode(talloc_tos(), newpath);
345 if (!capold || !capnew) {
349 return SMB_VFS_NEXT_LINK(handle, capold, capnew);
352 static int cap_mknod(vfs_handle_struct *handle, const char *path, mode_t mode, SMB_DEV_T dev)
354 char *cappath = capencode(talloc_tos(), path);
360 return SMB_VFS_NEXT_MKNOD(handle, cappath, mode, dev);
363 static char *cap_realpath(vfs_handle_struct *handle, const char *path, char *resolved_path)
365 /* monyo need capencode'ed and capdecode'ed? */
366 char *cappath = capencode(talloc_tos(), path);
372 return SMB_VFS_NEXT_REALPATH(handle, path, resolved_path);
375 static int cap_chmod_acl(vfs_handle_struct *handle, const char *path, mode_t mode)
377 char *cappath = capencode(talloc_tos(), path);
379 /* If the underlying VFS doesn't have ACL support... */
380 if (!handle->vfs_next.ops.chmod_acl) {
388 return SMB_VFS_NEXT_CHMOD_ACL(handle, cappath, mode);
391 static SMB_ACL_T cap_sys_acl_get_file(vfs_handle_struct *handle, const char *path, SMB_ACL_TYPE_T type)
393 char *cappath = capencode(talloc_tos(), path);
397 return (SMB_ACL_T)NULL;
399 return SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, cappath, type);
402 static int cap_sys_acl_set_file(vfs_handle_struct *handle, const char *path, SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl)
404 char *cappath = capencode(talloc_tos(), path);
410 return SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, cappath, acltype, theacl);
413 static int cap_sys_acl_delete_def_file(vfs_handle_struct *handle, const char *path)
415 char *cappath = capencode(talloc_tos(), path);
421 return SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, cappath);
424 static ssize_t cap_getxattr(vfs_handle_struct *handle, const char *path, const char *name, void *value, size_t size)
426 char *cappath = capencode(talloc_tos(), path);
427 char *capname = capencode(talloc_tos(), name);
429 if (!cappath || !capname) {
433 return SMB_VFS_NEXT_GETXATTR(handle, cappath, capname, value, size);
436 static ssize_t cap_lgetxattr(vfs_handle_struct *handle, const char *path, const char *name, void *value, size_t
439 char *cappath = capencode(talloc_tos(), path);
440 char *capname = capencode(talloc_tos(), name);
442 if (!cappath || !capname) {
446 return SMB_VFS_NEXT_LGETXATTR(handle, cappath, capname, value, size);
449 static ssize_t cap_fgetxattr(vfs_handle_struct *handle, struct files_struct *fsp, const char *path, void *value, size_t size)
451 char *cappath = capencode(talloc_tos(), path);
457 return SMB_VFS_NEXT_FGETXATTR(handle, fsp, cappath, value, size);
460 static ssize_t cap_listxattr(vfs_handle_struct *handle, const char *path, char *list, size_t size)
462 char *cappath = capencode(talloc_tos(), path);
468 return SMB_VFS_NEXT_LISTXATTR(handle, cappath, list, size);
471 static ssize_t cap_llistxattr(vfs_handle_struct *handle, const char *path, char *list, size_t size)
473 char *cappath = capencode(talloc_tos(), path);
479 return SMB_VFS_NEXT_LLISTXATTR(handle, cappath, list, size);
482 static int cap_removexattr(vfs_handle_struct *handle, const char *path, const char *name)
484 char *cappath = capencode(talloc_tos(), path);
485 char *capname = capencode(talloc_tos(), name);
487 if (!cappath || !capname) {
491 return SMB_VFS_NEXT_REMOVEXATTR(handle, cappath, capname);
494 static int cap_lremovexattr(vfs_handle_struct *handle, const char *path, const char *name)
496 char *cappath = capencode(talloc_tos(), path);
497 char *capname = capencode(talloc_tos(), name);
499 if (!cappath || !capname) {
503 return SMB_VFS_NEXT_LREMOVEXATTR(handle, cappath, capname);
506 static int cap_fremovexattr(vfs_handle_struct *handle, struct files_struct *fsp, const char *path)
508 char *cappath = capencode(talloc_tos(), path);
514 return SMB_VFS_NEXT_FREMOVEXATTR(handle, fsp, cappath);
517 static int cap_setxattr(vfs_handle_struct *handle, const char *path, const char *name, const void *value, size_t size, int flags)
519 char *cappath = capencode(talloc_tos(), path);
520 char *capname = capencode(talloc_tos(), name);
522 if (!cappath || !capname) {
526 return SMB_VFS_NEXT_SETXATTR(handle, cappath, capname, value, size, flags);
529 static int cap_lsetxattr(vfs_handle_struct *handle, const char *path, const char *name, const void *value, size_t size, int flags)
531 char *cappath = capencode(talloc_tos(), path);
532 char *capname = capencode(talloc_tos(), name);
534 if (!cappath || !capname) {
538 return SMB_VFS_NEXT_LSETXATTR(handle, cappath, capname, value, size, flags);
541 static int cap_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp, const char *path, const void *value, size_t size, int flags)
543 char *cappath = capencode(talloc_tos(), path);
549 return SMB_VFS_NEXT_FSETXATTR(handle, fsp, cappath, value, size, flags);
552 /* VFS operations structure */
554 static vfs_op_tuple cap_op_tuples[] = {
556 /* Disk operations */
558 {SMB_VFS_OP(cap_disk_free), SMB_VFS_OP_DISK_FREE, SMB_VFS_LAYER_TRANSPARENT},
560 /* Directory operations */
562 {SMB_VFS_OP(cap_opendir), SMB_VFS_OP_OPENDIR, SMB_VFS_LAYER_TRANSPARENT},
563 {SMB_VFS_OP(cap_readdir), SMB_VFS_OP_READDIR, SMB_VFS_LAYER_TRANSPARENT},
564 {SMB_VFS_OP(cap_mkdir), SMB_VFS_OP_MKDIR, SMB_VFS_LAYER_TRANSPARENT},
565 {SMB_VFS_OP(cap_rmdir), SMB_VFS_OP_RMDIR, SMB_VFS_LAYER_TRANSPARENT},
567 /* File operations */
569 {SMB_VFS_OP(cap_open), SMB_VFS_OP_OPEN, SMB_VFS_LAYER_TRANSPARENT},
570 {SMB_VFS_OP(cap_rename), SMB_VFS_OP_RENAME, SMB_VFS_LAYER_TRANSPARENT},
571 {SMB_VFS_OP(cap_stat), SMB_VFS_OP_STAT, SMB_VFS_LAYER_TRANSPARENT},
572 {SMB_VFS_OP(cap_lstat), SMB_VFS_OP_LSTAT, SMB_VFS_LAYER_TRANSPARENT},
573 {SMB_VFS_OP(cap_unlink), SMB_VFS_OP_UNLINK, SMB_VFS_LAYER_TRANSPARENT},
574 {SMB_VFS_OP(cap_chmod), SMB_VFS_OP_CHMOD, SMB_VFS_LAYER_TRANSPARENT},
575 {SMB_VFS_OP(cap_chown), SMB_VFS_OP_CHOWN, SMB_VFS_LAYER_TRANSPARENT},
576 {SMB_VFS_OP(cap_lchown), SMB_VFS_OP_LCHOWN, SMB_VFS_LAYER_TRANSPARENT},
577 {SMB_VFS_OP(cap_chdir), SMB_VFS_OP_CHDIR, SMB_VFS_LAYER_TRANSPARENT},
578 {SMB_VFS_OP(cap_ntimes), SMB_VFS_OP_NTIMES, SMB_VFS_LAYER_TRANSPARENT},
579 {SMB_VFS_OP(cap_symlink), SMB_VFS_OP_SYMLINK, SMB_VFS_LAYER_TRANSPARENT},
580 {SMB_VFS_OP(cap_readlink), SMB_VFS_OP_READLINK, SMB_VFS_LAYER_TRANSPARENT},
581 {SMB_VFS_OP(cap_link), SMB_VFS_OP_LINK, SMB_VFS_LAYER_TRANSPARENT},
582 {SMB_VFS_OP(cap_mknod), SMB_VFS_OP_MKNOD, SMB_VFS_LAYER_TRANSPARENT},
583 {SMB_VFS_OP(cap_realpath), SMB_VFS_OP_REALPATH, SMB_VFS_LAYER_TRANSPARENT},
585 /* POSIX ACL operations */
587 {SMB_VFS_OP(cap_chmod_acl), SMB_VFS_OP_CHMOD_ACL, SMB_VFS_LAYER_TRANSPARENT},
589 {SMB_VFS_OP(cap_sys_acl_get_file), SMB_VFS_OP_SYS_ACL_GET_FILE, SMB_VFS_LAYER_TRANSPARENT},
590 {SMB_VFS_OP(cap_sys_acl_set_file), SMB_VFS_OP_SYS_ACL_SET_FILE, SMB_VFS_LAYER_TRANSPARENT},
591 {SMB_VFS_OP(cap_sys_acl_delete_def_file), SMB_VFS_OP_SYS_ACL_DELETE_DEF_FILE, SMB_VFS_LAYER_TRANSPARENT},
594 {SMB_VFS_OP(cap_getxattr), SMB_VFS_OP_GETXATTR, SMB_VFS_LAYER_TRANSPARENT},
595 {SMB_VFS_OP(cap_lgetxattr), SMB_VFS_OP_LGETXATTR, SMB_VFS_LAYER_TRANSPARENT},
596 {SMB_VFS_OP(cap_fgetxattr), SMB_VFS_OP_FGETXATTR, SMB_VFS_LAYER_TRANSPARENT},
597 {SMB_VFS_OP(cap_listxattr), SMB_VFS_OP_LISTXATTR, SMB_VFS_LAYER_TRANSPARENT},
598 {SMB_VFS_OP(cap_llistxattr), SMB_VFS_OP_LLISTXATTR, SMB_VFS_LAYER_TRANSPARENT},
599 {SMB_VFS_OP(cap_removexattr), SMB_VFS_OP_REMOVEXATTR, SMB_VFS_LAYER_TRANSPARENT},
600 {SMB_VFS_OP(cap_lremovexattr), SMB_VFS_OP_LREMOVEXATTR, SMB_VFS_LAYER_TRANSPARENT},
601 {SMB_VFS_OP(cap_fremovexattr), SMB_VFS_OP_FREMOVEXATTR, SMB_VFS_LAYER_TRANSPARENT},
602 {SMB_VFS_OP(cap_setxattr), SMB_VFS_OP_SETXATTR, SMB_VFS_LAYER_TRANSPARENT},
603 {SMB_VFS_OP(cap_lsetxattr), SMB_VFS_OP_LSETXATTR, SMB_VFS_LAYER_TRANSPARENT},
604 {SMB_VFS_OP(cap_fsetxattr), SMB_VFS_OP_FSETXATTR, SMB_VFS_LAYER_TRANSPARENT},
606 {NULL, SMB_VFS_OP_NOOP, SMB_VFS_LAYER_NOOP}
609 NTSTATUS vfs_cap_init(void);
610 NTSTATUS vfs_cap_init(void)
612 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "cap", cap_op_tuples);
615 /* For CAP functions */
617 #define hex2bin(c) hex2bin_table[(unsigned char)(c)]
618 #define bin2hex(c) bin2hex_table[(unsigned char)(c)]
619 #define is_hex(s) ((s)[0] == hex_tag)
621 static unsigned char hex2bin_table[256] = {
622 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x00 */
623 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x10 */
624 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x20 */
625 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0, /* 0x30 */
626 0000, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0000, /* 0x40 */
627 0000, 0000, 0000, 0000, 0000, 0000, 0000, 0000,
628 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x50 */
629 0000, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0000, /* 0x60 */
630 0000, 0000, 0000, 0000, 0000, 0000, 0000, 0000,
631 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x70 */
632 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x80 */
633 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x90 */
634 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xa0 */
635 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xb0 */
636 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xc0 */
637 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xd0 */
638 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xe0 */
639 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 /* 0xf0 */
641 static unsigned char bin2hex_table[256] = "0123456789abcdef";
643 /*******************************************************************
644 original code -> ":xx" - CAP format
645 ********************************************************************/
647 static char *capencode(TALLOC_CTX *ctx, const char *from)
654 for (p1 = from; *p1; p1++) {
655 if ((unsigned char)*p1 >= 0x80) {
663 to = TALLOC_ARRAY(ctx, char, len);
668 for (out = to; *from;) {
669 /* buffer husoku error */
670 if ((unsigned char)*from >= 0x80) {
672 *out++ = bin2hex (((*from)>>4)&0x0f);
673 *out++ = bin2hex ((*from)&0x0f);
683 /*******************************************************************
685 ********************************************************************/
686 /* ":xx" -> a byte */
688 static char *capdecode(TALLOC_CTX *ctx, const char *from)
695 for (p1 = from; *p1; len++) {
703 to = TALLOC_ARRAY(ctx, char, len);
708 for (out = to; *from;) {
710 *out++ = (hex2bin(from[1])<<4) | (hex2bin(from[2]));