2 * Store streams in a separate subdirectory
4 * Copyright (C) Volker Lendecke, 2007
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
21 #include "smbd/smbd.h"
22 #include "system/filesys.h"
25 #define DBGC_CLASS DBGC_VFS
28 * Excerpt from a mail from tridge:
30 * Volker, what I'm thinking of is this:
31 * /mount-point/.streams/XX/YY/aaaa.bbbb/namedstream1
32 * /mount-point/.streams/XX/YY/aaaa.bbbb/namedstream2
34 * where XX/YY is a 2 level hash based on the fsid/inode. "aaaa.bbbb"
35 * is the fsid/inode. "namedstreamX" is a file named after the stream
39 static uint32_t hash_fn(DATA_BLOB key)
41 uint32_t value; /* Used to compute the hash value. */
42 uint32_t i; /* Used to cycle through random values. */
44 /* Set the initial value from the key size. */
45 for (value = 0x238F13AF * key.length, i=0; i < key.length; i++)
46 value = (value + (key.data[i] << (i*5 % 24)));
48 return (1103515243 * value + 12345);
52 * With the hashing scheme based on the inode we need to protect against
53 * streams showing up on files with re-used inodes. This can happen if we
54 * create a stream directory from within Samba, and a local process or NFS
55 * client deletes the file without deleting the streams directory. When the
56 * inode is re-used and the stream directory is still around, the streams in
57 * there would be show up as belonging to the new file.
59 * There are several workarounds for this, probably the easiest one is on
60 * systems which have a true birthtime stat element: When the file has a later
61 * birthtime than the streams directory, then we have to recreate the
64 * The other workaround is to somehow mark the file as generated by Samba with
65 * something that a NFS client would not do. The closest one is a special
66 * xattr value being set. On systems which do not support xattrs, it might be
67 * an option to put in a special ACL entry for a non-existing group.
70 static bool file_is_valid(vfs_handle_struct *handle,
71 const struct smb_filename *smb_fname)
75 DEBUG(10, ("file_is_valid (%s) called\n", smb_fname->base_name));
77 if (SMB_VFS_GETXATTR(handle->conn, smb_fname, SAMBA_XATTR_MARKER,
78 &buf, sizeof(buf)) != sizeof(buf)) {
79 DEBUG(10, ("GETXATTR failed: %s\n", strerror(errno)));
84 DEBUG(10, ("got wrong buffer content: '%c'\n", buf));
91 static bool mark_file_valid(vfs_handle_struct *handle,
92 const struct smb_filename *smb_fname)
97 DEBUG(10, ("marking file %s as valid\n", smb_fname->base_name));
99 ret = SMB_VFS_SETXATTR(handle->conn, smb_fname, SAMBA_XATTR_MARKER,
100 &buf, sizeof(buf), 0);
103 DEBUG(10, ("SETXATTR failed: %s\n", strerror(errno)));
111 * Given an smb_filename, determine the stream directory using the file's
114 static char *stream_dir(vfs_handle_struct *handle,
115 const struct smb_filename *smb_fname,
116 const SMB_STRUCT_STAT *base_sbuf, bool create_it)
119 struct smb_filename *smb_fname_hash = NULL;
121 SMB_STRUCT_STAT base_sbuf_tmp;
122 uint8_t first, second;
128 char *rootdir = NULL;
129 struct smb_filename *rootdir_fname = NULL;
130 struct smb_filename *tmp_fname = NULL;
133 check_valid = lp_parm_bool(SNUM(handle->conn),
134 "streams_depot", "check_valid", true);
136 tmp = talloc_asprintf(talloc_tos(), "%s/.streams",
137 handle->conn->connectpath);
144 rootdir = lp_parm_talloc_string(talloc_tos(),
145 SNUM(handle->conn), "streams_depot", "directory",
147 if (rootdir == NULL) {
152 rootdir_fname = synthetic_smb_fname(talloc_tos(),
157 if (rootdir_fname == NULL) {
162 /* Stat the base file if it hasn't already been done. */
163 if (base_sbuf == NULL) {
164 struct smb_filename *smb_fname_base;
166 smb_fname_base = synthetic_smb_fname(
168 smb_fname->base_name,
172 if (smb_fname_base == NULL) {
176 if (SMB_VFS_NEXT_STAT(handle, smb_fname_base) == -1) {
177 TALLOC_FREE(smb_fname_base);
180 base_sbuf_tmp = smb_fname_base->st;
181 TALLOC_FREE(smb_fname_base);
183 base_sbuf_tmp = *base_sbuf;
186 id = SMB_VFS_FILE_ID_CREATE(handle->conn, &base_sbuf_tmp);
188 push_file_id_16((char *)id_buf, &id);
190 hash = hash_fn(data_blob_const(id_buf, sizeof(id_buf)));
193 second = (hash >> 8) & 0xff;
195 id_hex = hex_encode_talloc(talloc_tos(), id_buf, sizeof(id_buf));
197 if (id_hex == NULL) {
202 result = talloc_asprintf(talloc_tos(), "%s/%2.2X/%2.2X/%s", rootdir,
203 first, second, id_hex);
207 if (result == NULL) {
212 smb_fname_hash = synthetic_smb_fname(talloc_tos(),
217 if (smb_fname_hash == NULL) {
222 if (SMB_VFS_NEXT_STAT(handle, smb_fname_hash) == 0) {
223 struct smb_filename *smb_fname_new = NULL;
227 if (!S_ISDIR(smb_fname_hash->st.st_ex_mode)) {
233 file_is_valid(handle, smb_fname)) {
238 * Someone has recreated a file under an existing inode
239 * without deleting the streams directory.
240 * Move it away or remove if streams_depot:delete_lost is set.
244 delete_lost = lp_parm_bool(SNUM(handle->conn), "streams_depot",
245 "delete_lost", false);
248 DEBUG(3, ("Someone has recreated a file under an "
249 "existing inode. Removing: %s\n",
250 smb_fname_hash->base_name));
251 recursive_rmdir(talloc_tos(), handle->conn,
253 SMB_VFS_NEXT_RMDIR(handle, smb_fname_hash);
255 newname = talloc_asprintf(talloc_tos(), "lost-%lu",
257 DEBUG(3, ("Someone has recreated a file under an "
258 "existing inode. Renaming: %s to: %s\n",
259 smb_fname_hash->base_name,
261 if (newname == NULL) {
266 smb_fname_new = synthetic_smb_fname(
272 TALLOC_FREE(newname);
273 if (smb_fname_new == NULL) {
278 if (SMB_VFS_NEXT_RENAMEAT(handle,
279 handle->conn->cwd_fsp,
281 handle->conn->cwd_fsp,
282 smb_fname_new) == -1) {
283 TALLOC_FREE(smb_fname_new);
284 if ((errno == EEXIST) || (errno == ENOTEMPTY)) {
290 TALLOC_FREE(smb_fname_new);
299 ret = SMB_VFS_NEXT_MKDIRAT(handle,
300 handle->conn->cwd_fsp,
303 if ((ret != 0) && (errno != EEXIST)) {
307 tmp = talloc_asprintf(result, "%s/%2.2X", rootdir, first);
313 tmp_fname = synthetic_smb_fname(talloc_tos(),
318 if (tmp_fname == NULL) {
323 ret = SMB_VFS_NEXT_MKDIRAT(handle,
324 handle->conn->cwd_fsp,
327 if ((ret != 0) && (errno != EEXIST)) {
332 TALLOC_FREE(tmp_fname);
334 tmp = talloc_asprintf(result, "%s/%2.2X/%2.2X", rootdir, first,
341 tmp_fname = synthetic_smb_fname(talloc_tos(),
346 if (tmp_fname == NULL) {
351 ret = SMB_VFS_NEXT_MKDIRAT(handle,
352 handle->conn->cwd_fsp,
355 if ((ret != 0) && (errno != EEXIST)) {
360 TALLOC_FREE(tmp_fname);
362 /* smb_fname_hash is the struct smb_filename version of 'result' */
363 ret = SMB_VFS_NEXT_MKDIRAT(handle,
364 handle->conn->cwd_fsp,
367 if ((ret != 0) && (errno != EEXIST)) {
371 if (check_valid && !mark_file_valid(handle, smb_fname)) {
375 TALLOC_FREE(rootdir_fname);
376 TALLOC_FREE(rootdir);
377 TALLOC_FREE(tmp_fname);
378 TALLOC_FREE(smb_fname_hash);
382 TALLOC_FREE(rootdir_fname);
383 TALLOC_FREE(rootdir);
384 TALLOC_FREE(tmp_fname);
385 TALLOC_FREE(smb_fname_hash);
390 * Given a stream name, populate smb_fname_out with the actual location of the
393 static NTSTATUS stream_smb_fname(vfs_handle_struct *handle,
394 const struct smb_filename *smb_fname,
395 struct smb_filename **smb_fname_out,
398 char *dirname, *stream_fname;
402 *smb_fname_out = NULL;
404 stype = strchr_m(smb_fname->stream_name + 1, ':');
407 if (strcasecmp_m(stype, ":$DATA") != 0) {
408 return NT_STATUS_INVALID_PARAMETER;
412 dirname = stream_dir(handle, smb_fname, NULL, create_dir);
414 if (dirname == NULL) {
415 status = map_nt_error_from_unix(errno);
419 stream_fname = talloc_asprintf(talloc_tos(), "%s/%s", dirname,
420 smb_fname->stream_name);
422 if (stream_fname == NULL) {
423 status = NT_STATUS_NO_MEMORY;
428 /* Append an explicit stream type if one wasn't specified. */
429 stream_fname = talloc_asprintf(talloc_tos(), "%s:$DATA",
431 if (stream_fname == NULL) {
432 status = NT_STATUS_NO_MEMORY;
436 /* Normalize the stream type to upercase. */
437 if (!strupper_m(strrchr_m(stream_fname, ':') + 1)) {
438 status = NT_STATUS_INVALID_PARAMETER;
443 DEBUG(10, ("stream filename = %s\n", stream_fname));
445 /* Create an smb_filename with stream_name == NULL. */
446 *smb_fname_out = synthetic_smb_fname(talloc_tos(),
451 if (*smb_fname_out == NULL) {
452 return NT_STATUS_NO_MEMORY;
458 DEBUG(5, ("stream_name failed: %s\n", strerror(errno)));
459 TALLOC_FREE(*smb_fname_out);
463 static NTSTATUS walk_streams(vfs_handle_struct *handle,
464 struct smb_filename *smb_fname_base,
466 bool (*fn)(const char *dirname,
472 struct smb_filename *dir_smb_fname = NULL;
473 DIR *dirhandle = NULL;
474 const char *dirent = NULL;
475 char *talloced = NULL;
477 dirname = stream_dir(handle, smb_fname_base, &smb_fname_base->st,
480 if (dirname == NULL) {
481 if (errno == ENOENT) {
487 return map_nt_error_from_unix(errno);
490 DEBUG(10, ("walk_streams: dirname=%s\n", dirname));
492 dir_smb_fname = synthetic_smb_fname(talloc_tos(),
496 smb_fname_base->flags);
497 if (dir_smb_fname == NULL) {
498 TALLOC_FREE(dirname);
499 return NT_STATUS_NO_MEMORY;
502 dirhandle = SMB_VFS_NEXT_OPENDIR(handle, dir_smb_fname, NULL, 0);
504 TALLOC_FREE(dir_smb_fname);
506 if (dirhandle == NULL) {
507 TALLOC_FREE(dirname);
508 return map_nt_error_from_unix(errno);
511 while ((dirent = vfs_readdirname(handle->conn, dirhandle, NULL,
512 &talloced)) != NULL) {
514 if (ISDOT(dirent) || ISDOTDOT(dirent)) {
515 TALLOC_FREE(talloced);
519 DEBUG(10, ("walk_streams: dirent=%s\n", dirent));
521 if (!fn(dirname, dirent, private_data)) {
522 TALLOC_FREE(talloced);
525 TALLOC_FREE(talloced);
528 SMB_VFS_NEXT_CLOSEDIR(handle, dirhandle);
530 if (pdirname != NULL) {
534 TALLOC_FREE(dirname);
540 static int streams_depot_stat(vfs_handle_struct *handle,
541 struct smb_filename *smb_fname)
543 struct smb_filename *smb_fname_stream = NULL;
547 DEBUG(10, ("streams_depot_stat called for [%s]\n",
548 smb_fname_str_dbg(smb_fname)));
550 if (!is_named_stream(smb_fname)) {
551 return SMB_VFS_NEXT_STAT(handle, smb_fname);
554 /* Stat the actual stream now. */
555 status = stream_smb_fname(handle, smb_fname, &smb_fname_stream,
557 if (!NT_STATUS_IS_OK(status)) {
559 errno = map_errno_from_nt_status(status);
563 ret = SMB_VFS_NEXT_STAT(handle, smb_fname_stream);
565 /* Update the original smb_fname with the stat info. */
566 smb_fname->st = smb_fname_stream->st;
568 TALLOC_FREE(smb_fname_stream);
574 static int streams_depot_lstat(vfs_handle_struct *handle,
575 struct smb_filename *smb_fname)
577 struct smb_filename *smb_fname_stream = NULL;
581 DEBUG(10, ("streams_depot_lstat called for [%s]\n",
582 smb_fname_str_dbg(smb_fname)));
584 if (!is_named_stream(smb_fname)) {
585 return SMB_VFS_NEXT_LSTAT(handle, smb_fname);
588 /* Stat the actual stream now. */
589 status = stream_smb_fname(handle, smb_fname, &smb_fname_stream,
591 if (!NT_STATUS_IS_OK(status)) {
593 errno = map_errno_from_nt_status(status);
597 ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname_stream);
600 TALLOC_FREE(smb_fname_stream);
604 static int streams_depot_open(vfs_handle_struct *handle,
605 struct smb_filename *smb_fname,
606 files_struct *fsp, int flags, mode_t mode)
608 struct smb_filename *smb_fname_stream = NULL;
609 struct smb_filename *smb_fname_base = NULL;
613 if (!is_named_stream(smb_fname)) {
614 return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
617 /* Ensure the base file still exists. */
618 smb_fname_base = synthetic_smb_fname(talloc_tos(),
619 smb_fname->base_name,
623 if (smb_fname_base == NULL) {
629 ret = SMB_VFS_NEXT_STAT(handle, smb_fname_base);
634 /* Determine the stream name, and then open it. */
635 status = stream_smb_fname(handle, smb_fname, &smb_fname_stream, true);
636 if (!NT_STATUS_IS_OK(status)) {
638 errno = map_errno_from_nt_status(status);
642 ret = SMB_VFS_NEXT_OPEN(handle, smb_fname_stream, fsp, flags, mode);
645 TALLOC_FREE(smb_fname_stream);
646 TALLOC_FREE(smb_fname_base);
650 static int streams_depot_unlink_internal(vfs_handle_struct *handle,
651 struct files_struct *dirfsp,
652 const struct smb_filename *smb_fname,
655 struct smb_filename *smb_fname_base = NULL;
658 DEBUG(10, ("streams_depot_unlink called for %s\n",
659 smb_fname_str_dbg(smb_fname)));
661 /* If there is a valid stream, just unlink the stream and return. */
662 if (is_named_stream(smb_fname)) {
663 struct smb_filename *smb_fname_stream = NULL;
666 status = stream_smb_fname(handle, smb_fname, &smb_fname_stream,
668 if (!NT_STATUS_IS_OK(status)) {
669 errno = map_errno_from_nt_status(status);
673 ret = SMB_VFS_NEXT_UNLINKAT(handle,
678 TALLOC_FREE(smb_fname_stream);
683 * We potentially need to delete the per-inode streams directory
686 smb_fname_base = synthetic_smb_fname(talloc_tos(),
687 smb_fname->base_name,
691 if (smb_fname_base == NULL) {
696 if (smb_fname_base->flags & SMB_FILENAME_POSIX_PATH) {
697 ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname_base);
699 ret = SMB_VFS_NEXT_STAT(handle, smb_fname_base);
703 TALLOC_FREE(smb_fname_base);
708 * We know the unlink should succeed as the ACL
709 * check is already done in the caller. Remove the
710 * file *after* the streams.
713 char *dirname = stream_dir(handle, smb_fname_base,
714 &smb_fname_base->st, false);
716 if (dirname != NULL) {
717 struct smb_filename *smb_fname_dir =
718 synthetic_smb_fname(talloc_tos(),
723 if (smb_fname_dir == NULL) {
724 TALLOC_FREE(smb_fname_base);
725 TALLOC_FREE(dirname);
729 SMB_VFS_NEXT_RMDIR(handle, smb_fname_dir);
730 TALLOC_FREE(smb_fname_dir);
732 TALLOC_FREE(dirname);
735 ret = SMB_VFS_NEXT_UNLINKAT(handle,
739 TALLOC_FREE(smb_fname_base);
743 static int streams_depot_rmdir_internal(vfs_handle_struct *handle,
744 struct files_struct *dirfsp,
745 const struct smb_filename *smb_fname)
747 struct smb_filename *smb_fname_base = NULL;
750 DBG_DEBUG("called for %s\n", smb_fname->base_name);
753 * We potentially need to delete the per-inode streams directory
756 smb_fname_base = synthetic_smb_fname(talloc_tos(),
757 smb_fname->base_name,
761 if (smb_fname_base == NULL) {
766 if (smb_fname_base->flags & SMB_FILENAME_POSIX_PATH) {
767 ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname_base);
769 ret = SMB_VFS_NEXT_STAT(handle, smb_fname_base);
773 TALLOC_FREE(smb_fname_base);
778 * We know the rmdir should succeed as the ACL
779 * check is already done in the caller. Remove the
780 * directory *after* the streams.
783 char *dirname = stream_dir(handle, smb_fname_base,
784 &smb_fname_base->st, false);
786 if (dirname != NULL) {
787 struct smb_filename *smb_fname_dir =
788 synthetic_smb_fname(talloc_tos(),
793 if (smb_fname_dir == NULL) {
794 TALLOC_FREE(smb_fname_base);
795 TALLOC_FREE(dirname);
799 SMB_VFS_NEXT_UNLINKAT(handle,
803 TALLOC_FREE(smb_fname_dir);
805 TALLOC_FREE(dirname);
808 ret = SMB_VFS_NEXT_UNLINKAT(handle,
812 TALLOC_FREE(smb_fname_base);
816 static int streams_depot_unlinkat(vfs_handle_struct *handle,
817 struct files_struct *dirfsp,
818 const struct smb_filename *smb_fname,
822 SMB_ASSERT(dirfsp == dirfsp->conn->cwd_fsp);
823 if (flags & AT_REMOVEDIR) {
824 ret = streams_depot_rmdir_internal(handle,
828 ret = streams_depot_unlink_internal(handle,
836 static int streams_depot_rmdir(vfs_handle_struct *handle,
837 const struct smb_filename *smb_fname)
839 return streams_depot_rmdir_internal(handle,
840 handle->conn->cwd_fsp,
844 static int streams_depot_renameat(vfs_handle_struct *handle,
845 files_struct *srcfsp,
846 const struct smb_filename *smb_fname_src,
847 files_struct *dstfsp,
848 const struct smb_filename *smb_fname_dst)
850 struct smb_filename *smb_fname_src_stream = NULL;
851 struct smb_filename *smb_fname_dst_stream = NULL;
852 bool src_is_stream, dst_is_stream;
856 DEBUG(10, ("streams_depot_renameat called for %s => %s\n",
857 smb_fname_str_dbg(smb_fname_src),
858 smb_fname_str_dbg(smb_fname_dst)));
860 src_is_stream = is_ntfs_stream_smb_fname(smb_fname_src);
861 dst_is_stream = is_ntfs_stream_smb_fname(smb_fname_dst);
863 if (!src_is_stream && !dst_is_stream) {
864 return SMB_VFS_NEXT_RENAMEAT(handle,
871 /* for now don't allow renames from or to the default stream */
872 if (is_ntfs_default_stream_smb_fname(smb_fname_src) ||
873 is_ntfs_default_stream_smb_fname(smb_fname_dst)) {
878 status = stream_smb_fname(handle, smb_fname_src, &smb_fname_src_stream,
880 if (!NT_STATUS_IS_OK(status)) {
881 errno = map_errno_from_nt_status(status);
885 status = stream_smb_fname(handle, smb_fname_dst,
886 &smb_fname_dst_stream, false);
887 if (!NT_STATUS_IS_OK(status)) {
888 errno = map_errno_from_nt_status(status);
892 ret = SMB_VFS_NEXT_RENAMEAT(handle,
894 smb_fname_src_stream,
896 smb_fname_dst_stream);
899 TALLOC_FREE(smb_fname_src_stream);
900 TALLOC_FREE(smb_fname_dst_stream);
904 static bool add_one_stream(TALLOC_CTX *mem_ctx, unsigned int *num_streams,
905 struct stream_struct **streams,
906 const char *name, off_t size,
909 struct stream_struct *tmp;
911 tmp = talloc_realloc(mem_ctx, *streams, struct stream_struct,
917 tmp[*num_streams].name = talloc_strdup(tmp, name);
918 if (tmp[*num_streams].name == NULL) {
922 tmp[*num_streams].size = size;
923 tmp[*num_streams].alloc_size = alloc_size;
930 struct streaminfo_state {
932 vfs_handle_struct *handle;
933 unsigned int num_streams;
934 struct stream_struct *streams;
938 static bool collect_one_stream(const char *dirname,
942 struct streaminfo_state *state =
943 (struct streaminfo_state *)private_data;
944 struct smb_filename *smb_fname = NULL;
948 sname = talloc_asprintf(talloc_tos(), "%s/%s", dirname, dirent);
950 state->status = NT_STATUS_NO_MEMORY;
955 smb_fname = synthetic_smb_fname(talloc_tos(), sname, NULL, NULL, 0);
956 if (smb_fname == NULL) {
957 state->status = NT_STATUS_NO_MEMORY;
962 if (SMB_VFS_NEXT_STAT(state->handle, smb_fname) == -1) {
963 DEBUG(10, ("Could not stat %s: %s\n", sname,
969 if (!add_one_stream(state->mem_ctx,
970 &state->num_streams, &state->streams,
971 dirent, smb_fname->st.st_ex_size,
972 SMB_VFS_GET_ALLOC_SIZE(state->handle->conn, NULL,
974 state->status = NT_STATUS_NO_MEMORY;
982 TALLOC_FREE(smb_fname);
986 static NTSTATUS streams_depot_streaminfo(vfs_handle_struct *handle,
987 struct files_struct *fsp,
988 const struct smb_filename *smb_fname,
990 unsigned int *pnum_streams,
991 struct stream_struct **pstreams)
993 struct smb_filename *smb_fname_base = NULL;
996 struct streaminfo_state state;
998 smb_fname_base = synthetic_smb_fname(talloc_tos(),
999 smb_fname->base_name,
1003 if (smb_fname_base == NULL) {
1004 return NT_STATUS_NO_MEMORY;
1007 if ((fsp != NULL) && (fsp->fh->fd != -1)) {
1008 ret = SMB_VFS_NEXT_FSTAT(handle, fsp, &smb_fname_base->st);
1011 if (smb_fname_base->flags & SMB_FILENAME_POSIX_PATH) {
1012 ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname_base);
1014 ret = SMB_VFS_NEXT_STAT(handle, smb_fname_base);
1019 status = map_nt_error_from_unix(errno);
1023 state.streams = *pstreams;
1024 state.num_streams = *pnum_streams;
1025 state.mem_ctx = mem_ctx;
1026 state.handle = handle;
1027 state.status = NT_STATUS_OK;
1029 if (S_ISLNK(smb_fname_base->st.st_ex_mode)) {
1031 * Currently we do't have SMB_VFS_LLISTXATTR
1032 * inside the VFS which means there's no way
1033 * to cope with a symlink when lp_posix_pathnames().
1034 * returns true. For now ignore links.
1035 * FIXME - by adding SMB_VFS_LLISTXATTR. JRA.
1037 status = NT_STATUS_OK;
1039 status = walk_streams(handle, smb_fname_base, NULL, collect_one_stream,
1043 if (!NT_STATUS_IS_OK(status)) {
1044 TALLOC_FREE(state.streams);
1048 if (!NT_STATUS_IS_OK(state.status)) {
1049 TALLOC_FREE(state.streams);
1050 status = state.status;
1054 *pnum_streams = state.num_streams;
1055 *pstreams = state.streams;
1056 status = SMB_VFS_NEXT_STREAMINFO(handle,
1064 TALLOC_FREE(smb_fname_base);
1068 static uint32_t streams_depot_fs_capabilities(struct vfs_handle_struct *handle,
1069 enum timestamp_set_resolution *p_ts_res)
1071 return SMB_VFS_NEXT_FS_CAPABILITIES(handle, p_ts_res) | FILE_NAMED_STREAMS;
1074 static struct vfs_fn_pointers vfs_streams_depot_fns = {
1075 .fs_capabilities_fn = streams_depot_fs_capabilities,
1076 .open_fn = streams_depot_open,
1077 .stat_fn = streams_depot_stat,
1078 .lstat_fn = streams_depot_lstat,
1079 .unlinkat_fn = streams_depot_unlinkat,
1080 .rmdir_fn = streams_depot_rmdir,
1081 .renameat_fn = streams_depot_renameat,
1082 .streaminfo_fn = streams_depot_streaminfo,
1086 NTSTATUS vfs_streams_depot_init(TALLOC_CTX *ctx)
1088 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "streams_depot",
1089 &vfs_streams_depot_fns);