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,
33 const struct smb_filename *smb_fname,
38 char *capname = capencode(talloc_tos(), smb_fname->base_name);
39 struct smb_filename *cap_smb_fname = NULL;
45 cap_smb_fname = synthetic_smb_fname(talloc_tos(),
50 if (cap_smb_fname == NULL) {
55 return SMB_VFS_NEXT_DISK_FREE(handle, cap_smb_fname,
59 static int cap_get_quota(vfs_handle_struct *handle,
60 const struct smb_filename *smb_fname,
61 enum SMB_QUOTA_TYPE qtype,
65 char *cappath = capencode(talloc_tos(), smb_fname->base_name);
66 struct smb_filename *cap_smb_fname = NULL;
72 cap_smb_fname = synthetic_smb_fname(talloc_tos(),
77 if (cap_smb_fname == NULL) {
82 return SMB_VFS_NEXT_GET_QUOTA(handle, cap_smb_fname, qtype, id, dq);
85 static DIR *cap_opendir(vfs_handle_struct *handle,
86 const struct smb_filename *smb_fname,
90 char *capname = capencode(talloc_tos(), smb_fname->base_name);
91 struct smb_filename *cap_smb_fname = NULL;
97 cap_smb_fname = synthetic_smb_fname(talloc_tos(),
102 if (cap_smb_fname == NULL) {
103 TALLOC_FREE(capname);
107 return SMB_VFS_NEXT_OPENDIR(handle, cap_smb_fname, mask, attr);
110 static struct dirent *cap_readdir(vfs_handle_struct *handle,
112 SMB_STRUCT_STAT *sbuf)
114 struct dirent *result;
115 struct dirent *newdirent;
118 DEBUG(3,("cap: cap_readdir\n"));
120 result = SMB_VFS_NEXT_READDIR(handle, dirp, NULL);
125 newname = capdecode(talloc_tos(), result->d_name);
129 DEBUG(3,("cap: cap_readdir: %s\n", newname));
130 newnamelen = strlen(newname)+1;
131 newdirent = talloc_size(
132 talloc_tos(), sizeof(struct dirent) + newnamelen);
136 talloc_set_name_const(newdirent, "struct dirent");
137 memcpy(newdirent, result, sizeof(struct dirent));
138 memcpy(&newdirent->d_name, newname, newnamelen);
142 static int cap_mkdir(vfs_handle_struct *handle,
143 const struct smb_filename *smb_fname,
146 char *cappath = capencode(talloc_tos(), smb_fname->base_name);
147 struct smb_filename *cap_smb_fname = NULL;
154 cap_smb_fname = synthetic_smb_fname(talloc_tos(),
159 if (cap_smb_fname == NULL) {
160 TALLOC_FREE(cappath);
165 return SMB_VFS_NEXT_MKDIR(handle, cap_smb_fname, mode);
168 static int cap_rmdir(vfs_handle_struct *handle,
169 const struct smb_filename *smb_fname)
171 char *cappath = capencode(talloc_tos(), smb_fname->base_name);
172 struct smb_filename *cap_smb_fname = NULL;
179 cap_smb_fname = synthetic_smb_fname(talloc_tos(),
184 if (cap_smb_fname == NULL) {
185 TALLOC_FREE(cappath);
190 return SMB_VFS_NEXT_RMDIR(handle, cap_smb_fname);
193 static int cap_open(vfs_handle_struct *handle, struct smb_filename *smb_fname,
194 files_struct *fsp, int flags, mode_t mode)
197 char *tmp_base_name = NULL;
200 cappath = capencode(talloc_tos(), smb_fname->base_name);
207 tmp_base_name = smb_fname->base_name;
208 smb_fname->base_name = cappath;
210 DEBUG(3,("cap: cap_open for %s\n", smb_fname_str_dbg(smb_fname)));
211 ret = SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
213 smb_fname->base_name = tmp_base_name;
214 TALLOC_FREE(cappath);
219 static int cap_rename(vfs_handle_struct *handle,
220 const struct smb_filename *smb_fname_src,
221 const struct smb_filename *smb_fname_dst)
225 struct smb_filename *smb_fname_src_tmp = NULL;
226 struct smb_filename *smb_fname_dst_tmp = NULL;
229 capold = capencode(talloc_tos(), smb_fname_src->base_name);
230 capnew = capencode(talloc_tos(), smb_fname_dst->base_name);
231 if (!capold || !capnew) {
236 /* Setup temporary smb_filename structs. */
237 smb_fname_src_tmp = cp_smb_filename(talloc_tos(), smb_fname_src);
238 if (smb_fname_src_tmp == NULL) {
242 smb_fname_dst_tmp = cp_smb_filename(talloc_tos(), smb_fname_dst);
243 if (smb_fname_dst_tmp == NULL) {
248 smb_fname_src_tmp->base_name = capold;
249 smb_fname_dst_tmp->base_name = capnew;
251 ret = SMB_VFS_NEXT_RENAME(handle, smb_fname_src_tmp,
256 TALLOC_FREE(smb_fname_src_tmp);
257 TALLOC_FREE(smb_fname_dst_tmp);
262 static int cap_stat(vfs_handle_struct *handle, struct smb_filename *smb_fname)
265 char *tmp_base_name = NULL;
268 cappath = capencode(talloc_tos(), smb_fname->base_name);
275 tmp_base_name = smb_fname->base_name;
276 smb_fname->base_name = cappath;
278 ret = SMB_VFS_NEXT_STAT(handle, smb_fname);
280 smb_fname->base_name = tmp_base_name;
281 TALLOC_FREE(cappath);
286 static int cap_lstat(vfs_handle_struct *handle, struct smb_filename *smb_fname)
289 char *tmp_base_name = NULL;
292 cappath = capencode(talloc_tos(), smb_fname->base_name);
299 tmp_base_name = smb_fname->base_name;
300 smb_fname->base_name = cappath;
302 ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
304 smb_fname->base_name = tmp_base_name;
305 TALLOC_FREE(cappath);
310 static int cap_unlink(vfs_handle_struct *handle,
311 const struct smb_filename *smb_fname)
313 struct smb_filename *smb_fname_tmp = NULL;
314 char *cappath = NULL;
317 cappath = capencode(talloc_tos(), smb_fname->base_name);
323 /* Setup temporary smb_filename structs. */
324 smb_fname_tmp = cp_smb_filename(talloc_tos(), smb_fname);
325 if (smb_fname_tmp == NULL) {
330 smb_fname_tmp->base_name = cappath;
332 ret = SMB_VFS_NEXT_UNLINK(handle, smb_fname_tmp);
334 TALLOC_FREE(smb_fname_tmp);
338 static int cap_chmod(vfs_handle_struct *handle,
339 const struct smb_filename *smb_fname,
342 struct smb_filename *cap_smb_fname = NULL;
343 char *cappath = capencode(talloc_tos(), smb_fname->base_name);
352 cap_smb_fname = synthetic_smb_fname(talloc_tos(),
357 if (cap_smb_fname == NULL) {
358 TALLOC_FREE(cappath);
363 ret = SMB_VFS_NEXT_CHMOD(handle, cap_smb_fname, mode);
365 TALLOC_FREE(cappath);
366 TALLOC_FREE(cap_smb_fname);
371 static int cap_chown(vfs_handle_struct *handle,
372 const struct smb_filename *smb_fname,
376 struct smb_filename *cap_smb_fname = NULL;
377 char *cappath = capencode(talloc_tos(), smb_fname->base_name);
386 cap_smb_fname = synthetic_smb_fname(talloc_tos(),
391 if (cap_smb_fname == NULL) {
392 TALLOC_FREE(cappath);
397 ret = SMB_VFS_NEXT_CHOWN(handle, cap_smb_fname, uid, gid);
399 TALLOC_FREE(cappath);
400 TALLOC_FREE(cap_smb_fname);
405 static int cap_lchown(vfs_handle_struct *handle,
406 const struct smb_filename *smb_fname,
410 struct smb_filename *cap_smb_fname = NULL;
411 char *cappath = capencode(talloc_tos(), smb_fname->base_name);
420 cap_smb_fname = synthetic_smb_fname(talloc_tos(),
425 if (cap_smb_fname == NULL) {
426 TALLOC_FREE(cappath);
431 ret = SMB_VFS_NEXT_LCHOWN(handle, cap_smb_fname, uid, gid);
433 TALLOC_FREE(cappath);
434 TALLOC_FREE(cap_smb_fname);
439 static int cap_chdir(vfs_handle_struct *handle, const char *path)
441 char *cappath = capencode(talloc_tos(), path);
447 DEBUG(3,("cap: cap_chdir for %s\n", path));
448 return SMB_VFS_NEXT_CHDIR(handle, cappath);
451 static int cap_ntimes(vfs_handle_struct *handle,
452 const struct smb_filename *smb_fname,
453 struct smb_file_time *ft)
455 struct smb_filename *smb_fname_tmp = NULL;
456 char *cappath = NULL;
459 cappath = capencode(talloc_tos(), smb_fname->base_name);
466 /* Setup temporary smb_filename structs. */
467 smb_fname_tmp = cp_smb_filename(talloc_tos(), smb_fname);
468 if (smb_fname_tmp == NULL) {
473 smb_fname_tmp->base_name = cappath;
475 ret = SMB_VFS_NEXT_NTIMES(handle, smb_fname_tmp, ft);
477 TALLOC_FREE(smb_fname_tmp);
482 static int cap_symlink(vfs_handle_struct *handle, const char *oldpath,
485 char *capold = capencode(talloc_tos(), oldpath);
486 char *capnew = capencode(talloc_tos(), newpath);
488 if (!capold || !capnew) {
492 return SMB_VFS_NEXT_SYMLINK(handle, capold, capnew);
495 static int cap_readlink(vfs_handle_struct *handle, const char *path,
496 char *buf, size_t bufsiz)
498 char *cappath = capencode(talloc_tos(), path);
504 return SMB_VFS_NEXT_READLINK(handle, cappath, buf, bufsiz);
507 static int cap_link(vfs_handle_struct *handle, const char *oldpath, const char *newpath)
509 char *capold = capencode(talloc_tos(), oldpath);
510 char *capnew = capencode(talloc_tos(), newpath);
512 if (!capold || !capnew) {
516 return SMB_VFS_NEXT_LINK(handle, capold, capnew);
519 static int cap_mknod(vfs_handle_struct *handle,
520 const struct smb_filename *smb_fname,
524 struct smb_filename *cap_smb_fname = NULL;
525 char *cappath = capencode(talloc_tos(), smb_fname->base_name);
533 cap_smb_fname = synthetic_smb_fname(talloc_tos(),
538 if (cap_smb_fname == NULL) {
539 TALLOC_FREE(cappath);
543 ret = SMB_VFS_NEXT_MKNOD(handle, cap_smb_fname, mode, dev);
547 TALLOC_FREE(cappath);
548 TALLOC_FREE(cap_smb_fname);
549 if (saved_errno != 0) {
555 static char *cap_realpath(vfs_handle_struct *handle, const char *path)
557 /* monyo need capencode'ed and capdecode'ed? */
558 char *cappath = capencode(talloc_tos(), path);
564 return SMB_VFS_NEXT_REALPATH(handle, cappath);
567 static int cap_chmod_acl(vfs_handle_struct *handle,
568 const struct smb_filename *smb_fname,
571 struct smb_filename *cap_smb_fname = NULL;
572 char *cappath = capencode(talloc_tos(), smb_fname->base_name);
576 /* If the underlying VFS doesn't have ACL support... */
581 cap_smb_fname = synthetic_smb_fname(talloc_tos(),
586 if (cap_smb_fname == NULL) {
587 TALLOC_FREE(cappath);
592 ret = SMB_VFS_NEXT_CHMOD_ACL(handle, cap_smb_fname, mode);
594 TALLOC_FREE(cappath);
595 TALLOC_FREE(cap_smb_fname);
600 static SMB_ACL_T cap_sys_acl_get_file(vfs_handle_struct *handle,
601 const struct smb_filename *smb_fname,
605 struct smb_filename *cap_smb_fname = NULL;
606 char *cappath = capencode(talloc_tos(), smb_fname->base_name);
612 return (SMB_ACL_T)NULL;
614 cap_smb_fname = synthetic_smb_fname(talloc_tos(),
619 if (cap_smb_fname == NULL) {
620 TALLOC_FREE(cappath);
622 return (SMB_ACL_T)NULL;
624 ret = SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, cap_smb_fname,
629 TALLOC_FREE(cappath);
630 TALLOC_FREE(cap_smb_fname);
631 if (saved_errno != 0) {
637 static int cap_sys_acl_set_file(vfs_handle_struct *handle,
638 const struct smb_filename *smb_fname,
639 SMB_ACL_TYPE_T acltype,
642 struct smb_filename *cap_smb_fname = NULL;
643 char *cappath = capencode(talloc_tos(), smb_fname->base_name);
651 cap_smb_fname = synthetic_smb_fname(talloc_tos(),
656 if (cap_smb_fname == NULL) {
657 TALLOC_FREE(cappath);
661 ret = SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, cap_smb_fname,
666 TALLOC_FREE(cappath);
667 TALLOC_FREE(cap_smb_fname);
668 if (saved_errno != 0) {
674 static int cap_sys_acl_delete_def_file(vfs_handle_struct *handle,
675 const struct smb_filename *smb_fname)
677 struct smb_filename *cap_smb_fname = NULL;
678 char *cappath = capencode(talloc_tos(), smb_fname->base_name);
686 cap_smb_fname = synthetic_smb_fname(talloc_tos(),
691 if (cap_smb_fname == NULL) {
692 TALLOC_FREE(cappath);
696 ret = SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, cap_smb_fname);
700 TALLOC_FREE(cappath);
701 TALLOC_FREE(cap_smb_fname);
708 static ssize_t cap_getxattr(vfs_handle_struct *handle,
709 const struct smb_filename *smb_fname,
714 struct smb_filename *cap_smb_fname = NULL;
715 char *cappath = capencode(talloc_tos(), smb_fname->base_name);
716 char *capname = capencode(talloc_tos(), name);
720 if (!cappath || !capname) {
724 cap_smb_fname = synthetic_smb_fname(talloc_tos(),
729 if (cap_smb_fname == NULL) {
730 TALLOC_FREE(cappath);
731 TALLOC_FREE(capname);
735 ret = SMB_VFS_NEXT_GETXATTR(handle, cap_smb_fname,
736 capname, value, size);
740 TALLOC_FREE(cappath);
741 TALLOC_FREE(capname);
742 TALLOC_FREE(cap_smb_fname);
749 static ssize_t cap_fgetxattr(vfs_handle_struct *handle, struct files_struct *fsp, const char *path, void *value, size_t size)
751 char *cappath = capencode(talloc_tos(), path);
757 return SMB_VFS_NEXT_FGETXATTR(handle, fsp, cappath, value, size);
760 static ssize_t cap_listxattr(vfs_handle_struct *handle,
761 const struct smb_filename *smb_fname,
765 struct smb_filename *cap_smb_fname = NULL;
766 char *cappath = capencode(talloc_tos(), smb_fname->base_name);
774 cap_smb_fname = synthetic_smb_fname(talloc_tos(),
779 if (cap_smb_fname == NULL) {
780 TALLOC_FREE(cappath);
784 ret = SMB_VFS_NEXT_LISTXATTR(handle, cap_smb_fname, list, size);
788 TALLOC_FREE(cappath);
789 TALLOC_FREE(cap_smb_fname);
796 static int cap_removexattr(vfs_handle_struct *handle,
797 const struct smb_filename *smb_fname,
800 struct smb_filename *cap_smb_fname = NULL;
801 char *cappath = capencode(talloc_tos(), smb_fname->base_name);
802 char *capname = capencode(talloc_tos(), name);
806 if (!cappath || !capname) {
810 cap_smb_fname = synthetic_smb_fname(talloc_tos(),
815 if (cap_smb_fname == NULL) {
816 TALLOC_FREE(cappath);
817 TALLOC_FREE(capname);
821 ret = SMB_VFS_NEXT_REMOVEXATTR(handle, cap_smb_fname, capname);
825 TALLOC_FREE(cappath);
826 TALLOC_FREE(capname);
827 TALLOC_FREE(cap_smb_fname);
834 static int cap_fremovexattr(vfs_handle_struct *handle, struct files_struct *fsp, const char *path)
836 char *cappath = capencode(talloc_tos(), path);
842 return SMB_VFS_NEXT_FREMOVEXATTR(handle, fsp, cappath);
845 static int cap_setxattr(vfs_handle_struct *handle,
846 const struct smb_filename *smb_fname,
852 struct smb_filename *cap_smb_fname = NULL;
853 char *cappath = capencode(talloc_tos(), smb_fname->base_name);
854 char *capname = capencode(talloc_tos(), name);
858 if (!cappath || !capname) {
862 cap_smb_fname = synthetic_smb_fname(talloc_tos(),
867 if (cap_smb_fname == NULL) {
868 TALLOC_FREE(cappath);
869 TALLOC_FREE(capname);
873 ret = SMB_VFS_NEXT_SETXATTR(handle, cap_smb_fname,
874 capname, value, size, flags);
878 TALLOC_FREE(cappath);
879 TALLOC_FREE(capname);
880 TALLOC_FREE(cap_smb_fname);
887 static int cap_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp, const char *path, const void *value, size_t size, int flags)
889 char *cappath = capencode(talloc_tos(), path);
895 return SMB_VFS_NEXT_FSETXATTR(handle, fsp, cappath, value, size, flags);
898 static struct vfs_fn_pointers vfs_cap_fns = {
899 .disk_free_fn = cap_disk_free,
900 .get_quota_fn = cap_get_quota,
901 .opendir_fn = cap_opendir,
902 .readdir_fn = cap_readdir,
903 .mkdir_fn = cap_mkdir,
904 .rmdir_fn = cap_rmdir,
906 .rename_fn = cap_rename,
908 .lstat_fn = cap_lstat,
909 .unlink_fn = cap_unlink,
910 .chmod_fn = cap_chmod,
911 .chown_fn = cap_chown,
912 .lchown_fn = cap_lchown,
913 .chdir_fn = cap_chdir,
914 .ntimes_fn = cap_ntimes,
915 .symlink_fn = cap_symlink,
916 .readlink_fn = cap_readlink,
918 .mknod_fn = cap_mknod,
919 .realpath_fn = cap_realpath,
920 .chmod_acl_fn = cap_chmod_acl,
921 .sys_acl_get_file_fn = cap_sys_acl_get_file,
922 .sys_acl_set_file_fn = cap_sys_acl_set_file,
923 .sys_acl_delete_def_file_fn = cap_sys_acl_delete_def_file,
924 .getxattr_fn = cap_getxattr,
925 .fgetxattr_fn = cap_fgetxattr,
926 .listxattr_fn = cap_listxattr,
927 .removexattr_fn = cap_removexattr,
928 .fremovexattr_fn = cap_fremovexattr,
929 .setxattr_fn = cap_setxattr,
930 .fsetxattr_fn = cap_fsetxattr
933 NTSTATUS vfs_cap_init(TALLOC_CTX *);
934 NTSTATUS vfs_cap_init(TALLOC_CTX *ctx)
936 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "cap",
940 /* For CAP functions */
942 #define hex2bin(c) hex2bin_table[(unsigned char)(c)]
943 #define bin2hex(c) bin2hex_table[(unsigned char)(c)]
944 #define is_hex(s) ((s)[0] == hex_tag)
946 static unsigned char hex2bin_table[256] = {
947 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x00 */
948 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x10 */
949 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x20 */
950 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0, /* 0x30 */
951 0000, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0000, /* 0x40 */
952 0000, 0000, 0000, 0000, 0000, 0000, 0000, 0000,
953 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x50 */
954 0000, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0000, /* 0x60 */
955 0000, 0000, 0000, 0000, 0000, 0000, 0000, 0000,
956 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x70 */
957 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x80 */
958 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x90 */
959 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xa0 */
960 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xb0 */
961 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xc0 */
962 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xd0 */
963 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xe0 */
964 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 /* 0xf0 */
966 static unsigned char bin2hex_table[256] = "0123456789abcdef";
968 /*******************************************************************
969 original code -> ":xx" - CAP format
970 ********************************************************************/
972 static char *capencode(TALLOC_CTX *ctx, const char *from)
979 for (p1 = from; *p1; p1++) {
980 if ((unsigned char)*p1 >= 0x80) {
988 to = talloc_array(ctx, char, len);
993 for (out = to; *from;) {
994 /* buffer husoku error */
995 if ((unsigned char)*from >= 0x80) {
997 *out++ = bin2hex (((*from)>>4)&0x0f);
998 *out++ = bin2hex ((*from)&0x0f);
1008 /*******************************************************************
1009 CAP -> original code
1010 ********************************************************************/
1011 /* ":xx" -> a byte */
1013 static char *capdecode(TALLOC_CTX *ctx, const char *from)
1020 for (p1 = from; *p1; len++) {
1029 to = talloc_array(ctx, char, len);
1034 for (out = to; *from;) {
1036 *out++ = (hex2bin(from[1])<<4) | (hex2bin(from[2]));