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/>.
26 #include "smbd/smbd.h"
29 static char *capencode(TALLOC_CTX *ctx, const char *from);
30 static char *capdecode(TALLOC_CTX *ctx, const char *from);
32 static uint64_t cap_disk_free(vfs_handle_struct *handle, const char *path,
33 bool small_query, uint64_t *bsize,
34 uint64_t *dfree, uint64_t *dsize)
36 char *cappath = capencode(talloc_tos(), path);
42 return SMB_VFS_NEXT_DISK_FREE(handle, cappath, small_query, bsize,
46 static DIR *cap_opendir(vfs_handle_struct *handle, const char *fname, const char *mask, uint32 attr)
48 char *capname = capencode(talloc_tos(), fname);
54 return SMB_VFS_NEXT_OPENDIR(handle, capname, mask, attr);
57 static struct dirent *cap_readdir(vfs_handle_struct *handle,
59 SMB_STRUCT_STAT *sbuf)
61 struct dirent *result;
62 struct dirent *newdirent;
65 DEBUG(3,("cap: cap_readdir\n"));
67 result = SMB_VFS_NEXT_READDIR(handle, dirp, NULL);
72 newname = capdecode(talloc_tos(), result->d_name);
76 DEBUG(3,("cap: cap_readdir: %s\n", newname));
77 newnamelen = strlen(newname)+1;
78 newdirent = (struct dirent *)talloc_array(talloc_tos(),
80 sizeof(struct dirent)+
85 memcpy(newdirent, result, sizeof(struct dirent));
86 memcpy(&newdirent->d_name, newname, newnamelen);
90 static int cap_mkdir(vfs_handle_struct *handle, const char *path, mode_t mode)
92 char *cappath = capencode(talloc_tos(), path);
98 return SMB_VFS_NEXT_MKDIR(handle, cappath, mode);
101 static int cap_rmdir(vfs_handle_struct *handle, const char *path)
103 char *cappath = capencode(talloc_tos(), path);
109 return SMB_VFS_NEXT_RMDIR(handle, cappath);
112 static int cap_open(vfs_handle_struct *handle, struct smb_filename *smb_fname,
113 files_struct *fsp, int flags, mode_t mode)
116 char *tmp_base_name = NULL;
119 cappath = capencode(talloc_tos(), smb_fname->base_name);
126 tmp_base_name = smb_fname->base_name;
127 smb_fname->base_name = cappath;
129 DEBUG(3,("cap: cap_open for %s\n", smb_fname_str_dbg(smb_fname)));
130 ret = SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
132 smb_fname->base_name = tmp_base_name;
133 TALLOC_FREE(cappath);
138 static int cap_rename(vfs_handle_struct *handle,
139 const struct smb_filename *smb_fname_src,
140 const struct smb_filename *smb_fname_dst)
144 struct smb_filename *smb_fname_src_tmp = NULL;
145 struct smb_filename *smb_fname_dst_tmp = NULL;
149 capold = capencode(talloc_tos(), smb_fname_src->base_name);
150 capnew = capencode(talloc_tos(), smb_fname_dst->base_name);
151 if (!capold || !capnew) {
156 /* Setup temporary smb_filename structs. */
157 status = copy_smb_filename(talloc_tos(), smb_fname_src,
159 if (!NT_STATUS_IS_OK(status)) {
160 errno = map_errno_from_nt_status(status);
163 status = copy_smb_filename(talloc_tos(), smb_fname_dst,
165 if (!NT_STATUS_IS_OK(status)) {
166 errno = map_errno_from_nt_status(status);
170 smb_fname_src_tmp->base_name = capold;
171 smb_fname_dst_tmp->base_name = capnew;
173 ret = SMB_VFS_NEXT_RENAME(handle, smb_fname_src_tmp,
178 TALLOC_FREE(smb_fname_src_tmp);
179 TALLOC_FREE(smb_fname_dst_tmp);
184 static int cap_stat(vfs_handle_struct *handle, struct smb_filename *smb_fname)
187 char *tmp_base_name = NULL;
190 cappath = capencode(talloc_tos(), smb_fname->base_name);
197 tmp_base_name = smb_fname->base_name;
198 smb_fname->base_name = cappath;
200 ret = SMB_VFS_NEXT_STAT(handle, smb_fname);
202 smb_fname->base_name = tmp_base_name;
203 TALLOC_FREE(cappath);
208 static int cap_lstat(vfs_handle_struct *handle, struct smb_filename *smb_fname)
211 char *tmp_base_name = NULL;
214 cappath = capencode(talloc_tos(), smb_fname->base_name);
221 tmp_base_name = smb_fname->base_name;
222 smb_fname->base_name = cappath;
224 ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
226 smb_fname->base_name = tmp_base_name;
227 TALLOC_FREE(cappath);
232 static int cap_unlink(vfs_handle_struct *handle,
233 const struct smb_filename *smb_fname)
235 struct smb_filename *smb_fname_tmp = NULL;
236 char *cappath = NULL;
240 cappath = capencode(talloc_tos(), smb_fname->base_name);
246 /* Setup temporary smb_filename structs. */
247 status = copy_smb_filename(talloc_tos(), smb_fname,
249 if (!NT_STATUS_IS_OK(status)) {
250 errno = map_errno_from_nt_status(status);
254 smb_fname_tmp->base_name = cappath;
256 ret = SMB_VFS_NEXT_UNLINK(handle, smb_fname_tmp);
258 TALLOC_FREE(smb_fname_tmp);
262 static int cap_chmod(vfs_handle_struct *handle, const char *path, mode_t mode)
264 char *cappath = capencode(talloc_tos(), path);
270 return SMB_VFS_NEXT_CHMOD(handle, cappath, mode);
273 static int cap_chown(vfs_handle_struct *handle, const char *path, uid_t uid, gid_t gid)
275 char *cappath = capencode(talloc_tos(), path);
281 return SMB_VFS_NEXT_CHOWN(handle, cappath, uid, gid);
284 static int cap_lchown(vfs_handle_struct *handle, const char *path, uid_t uid, gid_t gid)
286 char *cappath = capencode(talloc_tos(), path);
292 return SMB_VFS_NEXT_LCHOWN(handle, cappath, uid, gid);
295 static int cap_chdir(vfs_handle_struct *handle, const char *path)
297 char *cappath = capencode(talloc_tos(), path);
303 DEBUG(3,("cap: cap_chdir for %s\n", path));
304 return SMB_VFS_NEXT_CHDIR(handle, cappath);
307 static int cap_ntimes(vfs_handle_struct *handle,
308 const struct smb_filename *smb_fname,
309 struct smb_file_time *ft)
311 struct smb_filename *smb_fname_tmp = NULL;
312 char *cappath = NULL;
316 cappath = capencode(talloc_tos(), smb_fname->base_name);
323 /* Setup temporary smb_filename structs. */
324 status = copy_smb_filename(talloc_tos(), smb_fname,
326 if (!NT_STATUS_IS_OK(status)) {
327 errno = map_errno_from_nt_status(status);
331 smb_fname_tmp->base_name = cappath;
333 ret = SMB_VFS_NEXT_NTIMES(handle, smb_fname_tmp, ft);
335 TALLOC_FREE(smb_fname_tmp);
340 static int cap_symlink(vfs_handle_struct *handle, const char *oldpath,
343 char *capold = capencode(talloc_tos(), oldpath);
344 char *capnew = capencode(talloc_tos(), newpath);
346 if (!capold || !capnew) {
350 return SMB_VFS_NEXT_SYMLINK(handle, capold, capnew);
353 static int cap_readlink(vfs_handle_struct *handle, const char *path,
354 char *buf, size_t bufsiz)
356 char *cappath = capencode(talloc_tos(), path);
362 return SMB_VFS_NEXT_READLINK(handle, cappath, buf, bufsiz);
365 static int cap_link(vfs_handle_struct *handle, const char *oldpath, const char *newpath)
367 char *capold = capencode(talloc_tos(), oldpath);
368 char *capnew = capencode(talloc_tos(), newpath);
370 if (!capold || !capnew) {
374 return SMB_VFS_NEXT_LINK(handle, capold, capnew);
377 static int cap_mknod(vfs_handle_struct *handle, const char *path, mode_t mode, SMB_DEV_T dev)
379 char *cappath = capencode(talloc_tos(), path);
385 return SMB_VFS_NEXT_MKNOD(handle, cappath, mode, dev);
388 static char *cap_realpath(vfs_handle_struct *handle, const char *path)
390 /* monyo need capencode'ed and capdecode'ed? */
391 char *cappath = capencode(talloc_tos(), path);
397 return SMB_VFS_NEXT_REALPATH(handle, cappath);
400 static int cap_chmod_acl(vfs_handle_struct *handle, const char *path, mode_t mode)
402 char *cappath = capencode(talloc_tos(), path);
404 /* If the underlying VFS doesn't have ACL support... */
409 return SMB_VFS_NEXT_CHMOD_ACL(handle, cappath, mode);
412 static SMB_ACL_T cap_sys_acl_get_file(vfs_handle_struct *handle, const char *path, SMB_ACL_TYPE_T type)
414 char *cappath = capencode(talloc_tos(), path);
418 return (SMB_ACL_T)NULL;
420 return SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, cappath, type);
423 static int cap_sys_acl_set_file(vfs_handle_struct *handle, const char *path, SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl)
425 char *cappath = capencode(talloc_tos(), path);
431 return SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, cappath, acltype, theacl);
434 static int cap_sys_acl_delete_def_file(vfs_handle_struct *handle, const char *path)
436 char *cappath = capencode(talloc_tos(), path);
442 return SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, cappath);
445 static ssize_t cap_getxattr(vfs_handle_struct *handle, const char *path, const char *name, void *value, size_t size)
447 char *cappath = capencode(talloc_tos(), path);
448 char *capname = capencode(talloc_tos(), name);
450 if (!cappath || !capname) {
454 return SMB_VFS_NEXT_GETXATTR(handle, cappath, capname, value, size);
457 static ssize_t cap_fgetxattr(vfs_handle_struct *handle, struct files_struct *fsp, const char *path, void *value, size_t size)
459 char *cappath = capencode(talloc_tos(), path);
465 return SMB_VFS_NEXT_FGETXATTR(handle, fsp, cappath, value, size);
468 static ssize_t cap_listxattr(vfs_handle_struct *handle, const char *path, char *list, size_t size)
470 char *cappath = capencode(talloc_tos(), path);
476 return SMB_VFS_NEXT_LISTXATTR(handle, cappath, list, size);
479 static ssize_t cap_llistxattr(vfs_handle_struct *handle, const char *path, char *list, size_t size)
481 char *cappath = capencode(talloc_tos(), path);
487 return SMB_VFS_NEXT_LLISTXATTR(handle, cappath, list, size);
490 static int cap_removexattr(vfs_handle_struct *handle, const char *path, const char *name)
492 char *cappath = capencode(talloc_tos(), path);
493 char *capname = capencode(talloc_tos(), name);
495 if (!cappath || !capname) {
499 return SMB_VFS_NEXT_REMOVEXATTR(handle, cappath, capname);
502 static int cap_lremovexattr(vfs_handle_struct *handle, const char *path, const char *name)
504 char *cappath = capencode(talloc_tos(), path);
505 char *capname = capencode(talloc_tos(), name);
507 if (!cappath || !capname) {
511 return SMB_VFS_NEXT_LREMOVEXATTR(handle, cappath, capname);
514 static int cap_fremovexattr(vfs_handle_struct *handle, struct files_struct *fsp, const char *path)
516 char *cappath = capencode(talloc_tos(), path);
522 return SMB_VFS_NEXT_FREMOVEXATTR(handle, fsp, cappath);
525 static int cap_setxattr(vfs_handle_struct *handle, const char *path, const char *name, const void *value, size_t size, int flags)
527 char *cappath = capencode(talloc_tos(), path);
528 char *capname = capencode(talloc_tos(), name);
530 if (!cappath || !capname) {
534 return SMB_VFS_NEXT_SETXATTR(handle, cappath, capname, value, size, flags);
537 static int cap_lsetxattr(vfs_handle_struct *handle, const char *path, const char *name, const void *value, size_t size, int flags)
539 char *cappath = capencode(talloc_tos(), path);
540 char *capname = capencode(talloc_tos(), name);
542 if (!cappath || !capname) {
546 return SMB_VFS_NEXT_LSETXATTR(handle, cappath, capname, value, size, flags);
549 static int cap_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp, const char *path, const void *value, size_t size, int flags)
551 char *cappath = capencode(talloc_tos(), path);
557 return SMB_VFS_NEXT_FSETXATTR(handle, fsp, cappath, value, size, flags);
560 static struct vfs_fn_pointers vfs_cap_fns = {
561 .disk_free_fn = cap_disk_free,
562 .opendir_fn = cap_opendir,
563 .readdir_fn = cap_readdir,
564 .mkdir_fn = cap_mkdir,
565 .rmdir_fn = cap_rmdir,
567 .rename_fn = cap_rename,
569 .lstat_fn = cap_lstat,
570 .unlink_fn = cap_unlink,
571 .chmod_fn = cap_chmod,
572 .chown_fn = cap_chown,
573 .lchown_fn = cap_lchown,
574 .chdir_fn = cap_chdir,
575 .ntimes_fn = cap_ntimes,
576 .symlink_fn = cap_symlink,
577 .readlink_fn = cap_readlink,
579 .mknod_fn = cap_mknod,
580 .realpath_fn = cap_realpath,
581 .chmod_acl_fn = cap_chmod_acl,
582 .sys_acl_get_file_fn = cap_sys_acl_get_file,
583 .sys_acl_set_file_fn = cap_sys_acl_set_file,
584 .sys_acl_delete_def_file_fn = cap_sys_acl_delete_def_file,
585 .getxattr_fn = cap_getxattr,
586 .fgetxattr_fn = cap_fgetxattr,
587 .listxattr_fn = cap_listxattr,
588 .llistxattr_fn = cap_llistxattr,
589 .removexattr_fn = cap_removexattr,
590 .lremovexattr_fn = cap_lremovexattr,
591 .fremovexattr_fn = cap_fremovexattr,
592 .setxattr_fn = cap_setxattr,
593 .lsetxattr_fn = cap_lsetxattr,
594 .fsetxattr_fn = cap_fsetxattr
597 NTSTATUS vfs_cap_init(void);
598 NTSTATUS vfs_cap_init(void)
600 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "cap",
604 /* For CAP functions */
606 #define hex2bin(c) hex2bin_table[(unsigned char)(c)]
607 #define bin2hex(c) bin2hex_table[(unsigned char)(c)]
608 #define is_hex(s) ((s)[0] == hex_tag)
610 static unsigned char hex2bin_table[256] = {
611 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x00 */
612 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x10 */
613 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x20 */
614 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0, /* 0x30 */
615 0000, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0000, /* 0x40 */
616 0000, 0000, 0000, 0000, 0000, 0000, 0000, 0000,
617 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x50 */
618 0000, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0000, /* 0x60 */
619 0000, 0000, 0000, 0000, 0000, 0000, 0000, 0000,
620 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x70 */
621 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x80 */
622 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x90 */
623 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xa0 */
624 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xb0 */
625 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xc0 */
626 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xd0 */
627 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xe0 */
628 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 /* 0xf0 */
630 static unsigned char bin2hex_table[256] = "0123456789abcdef";
632 /*******************************************************************
633 original code -> ":xx" - CAP format
634 ********************************************************************/
636 static char *capencode(TALLOC_CTX *ctx, const char *from)
643 for (p1 = from; *p1; p1++) {
644 if ((unsigned char)*p1 >= 0x80) {
652 to = talloc_array(ctx, char, len);
657 for (out = to; *from;) {
658 /* buffer husoku error */
659 if ((unsigned char)*from >= 0x80) {
661 *out++ = bin2hex (((*from)>>4)&0x0f);
662 *out++ = bin2hex ((*from)&0x0f);
672 /*******************************************************************
674 ********************************************************************/
675 /* ":xx" -> a byte */
677 static char *capdecode(TALLOC_CTX *ctx, const char *from)
684 for (p1 = from; *p1; len++) {
693 to = talloc_array(ctx, char, len);
698 for (out = to; *from;) {
700 *out++ = (hex2bin(from[1])<<4) | (hex2bin(from[2]));