2 Unix SMB/CIFS implementation.
4 Copyright (C) Andrew Tridgell 1992-1998
5 Copyright (C) Jeremy Allison 1992-2007.
6 Copyright (C) Volker Lendecke 2005
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>.
23 #include "system/filesys.h"
25 #include "smbd/smbd.h"
26 #include "smbd/globals.h"
27 #include "fake_file.h"
28 #include "transfer_file.h"
31 #include "../librpc/gen_ndr/open_files.h"
33 /****************************************************************************
34 Run a file if it is a magic script.
35 ****************************************************************************/
37 static NTSTATUS
check_magic(struct files_struct
*fsp
)
40 const char *magic_output
= NULL
;
43 TALLOC_CTX
*ctx
= NULL
;
45 struct connection_struct
*conn
= fsp
->conn
;
49 if (!*lp_magicscript(talloc_tos(), SNUM(conn
))) {
53 DEBUG(5,("checking magic for %s\n", fsp_str_dbg(fsp
)));
55 ctx
= talloc_stackframe();
57 fname
= fsp
->fsp_name
->base_name
;
59 if (!(p
= strrchr_m(fname
,'/'))) {
65 if (!strequal(lp_magicscript(talloc_tos(), SNUM(conn
)),p
)) {
66 status
= NT_STATUS_OK
;
70 if (*lp_magicoutput(talloc_tos(), SNUM(conn
))) {
71 magic_output
= lp_magicoutput(talloc_tos(), SNUM(conn
));
73 magic_output
= talloc_asprintf(ctx
,
78 status
= NT_STATUS_NO_MEMORY
;
82 /* Ensure we don't depend on user's PATH. */
83 p
= talloc_asprintf(ctx
, "./%s", fname
);
85 status
= NT_STATUS_NO_MEMORY
;
89 if (chmod(fname
, 0755) == -1) {
90 status
= map_nt_error_from_unix(errno
);
93 ret
= smbrun(p
,&tmp_fd
);
94 DEBUG(3,("Invoking magic command %s gave %d\n",
98 if (ret
!= 0 || tmp_fd
== -1) {
102 status
= NT_STATUS_UNSUCCESSFUL
;
105 outfd
= open(magic_output
, O_CREAT
|O_EXCL
|O_RDWR
, 0600);
109 status
= map_nt_error_from_unix(err
);
113 if (sys_fstat(tmp_fd
, &st
, false) == -1) {
117 status
= map_nt_error_from_unix(err
);
121 if (transfer_file(tmp_fd
,outfd
,(off_t
)st
.st_ex_size
) == (off_t
)-1) {
125 status
= map_nt_error_from_unix(err
);
129 if (close(outfd
) == -1) {
130 status
= map_nt_error_from_unix(errno
);
134 status
= NT_STATUS_OK
;
141 /****************************************************************************
142 Common code to close a file or a directory.
143 ****************************************************************************/
145 static NTSTATUS
close_filestruct(files_struct
*fsp
)
147 NTSTATUS status
= NT_STATUS_OK
;
149 if (fsp
->fh
->fd
!= -1) {
150 if(flush_write_cache(fsp
, CLOSE_FLUSH
) == -1) {
151 status
= map_nt_error_from_unix(errno
);
153 delete_write_cache(fsp
);
159 static int compare_share_mode_times(const void *p1
, const void *p2
)
161 const struct share_mode_entry
*s1
= (const struct share_mode_entry
*)p1
;
162 const struct share_mode_entry
*s2
= (const struct share_mode_entry
*)p2
;
163 return timeval_compare(&s1
->time
, &s2
->time
);
166 /****************************************************************************
167 If any deferred opens are waiting on this close, notify them.
168 ****************************************************************************/
170 static void notify_deferred_opens(struct smbd_server_connection
*sconn
,
171 struct share_mode_lock
*lck
)
173 struct server_id self
= messaging_server_id(sconn
->msg_ctx
);
174 uint32_t i
, num_deferred
;
175 struct share_mode_entry
*deferred
;
177 if (!should_notify_deferred_opens(sconn
)) {
182 for (i
=0; i
<lck
->data
->num_share_modes
; i
++) {
183 struct share_mode_entry
*e
= &lck
->data
->share_modes
[i
];
185 if (!is_deferred_open_entry(e
)) {
188 if (share_mode_stale_pid(lck
->data
, i
)) {
193 if (num_deferred
== 0) {
197 deferred
= talloc_array(talloc_tos(), struct share_mode_entry
,
199 if (deferred
== NULL
) {
204 for (i
=0; i
<lck
->data
->num_share_modes
; i
++) {
205 struct share_mode_entry
*e
= &lck
->data
->share_modes
[i
];
206 if (is_deferred_open_entry(e
)) {
207 deferred
[num_deferred
] = *e
;
213 * We need to sort the notifications by initial request time. Imagine
214 * two opens come in asyncronously, both conflicting with the open we
215 * just close here. If we don't sort the notifications, the one that
216 * came in last might get the response before the one that came in
217 * first. This is demonstrated with the smbtorture4 raw.mux test.
219 * As long as we had the UNUSED_SHARE_MODE_ENTRY, we happened to
220 * survive this particular test. Without UNUSED_SHARE_MODE_ENTRY, we
221 * shuffle the share mode entries around a bit, so that we do not
222 * survive raw.mux anymore.
224 * We could have kept the ordering in del_share_mode, but as the
225 * ordering was never formalized I think it is better to do it here
226 * where it is necessary.
229 qsort(deferred
, num_deferred
, sizeof(struct share_mode_entry
),
230 compare_share_mode_times
);
232 for (i
=0; i
<num_deferred
; i
++) {
233 struct share_mode_entry
*e
= &deferred
[i
];
235 if (serverid_equal(&self
, &e
->pid
)) {
237 * We need to notify ourself to retry the open. Do
238 * this by finding the queued SMB record, moving it to
239 * the head of the queue and changing the wait time to
242 schedule_deferred_open_message_smb(sconn
, e
->op_mid
);
244 char msg
[MSG_SMB_SHARE_MODE_ENTRY_SIZE
];
246 share_mode_entry_to_message(msg
, e
);
248 messaging_send_buf(sconn
->msg_ctx
, e
->pid
,
251 MSG_SMB_SHARE_MODE_ENTRY_SIZE
);
254 TALLOC_FREE(deferred
);
257 /****************************************************************************
259 ****************************************************************************/
261 NTSTATUS
delete_all_streams(connection_struct
*conn
, const char *fname
)
263 struct stream_struct
*stream_info
= NULL
;
265 unsigned int num_streams
= 0;
266 TALLOC_CTX
*frame
= talloc_stackframe();
269 status
= vfs_streaminfo(conn
, NULL
, fname
, talloc_tos(),
270 &num_streams
, &stream_info
);
272 if (NT_STATUS_EQUAL(status
, NT_STATUS_NOT_IMPLEMENTED
)) {
273 DEBUG(10, ("no streams around\n"));
278 if (!NT_STATUS_IS_OK(status
)) {
279 DEBUG(10, ("vfs_streaminfo failed: %s\n",
284 DEBUG(10, ("delete_all_streams found %d streams\n",
287 if (num_streams
== 0) {
292 for (i
=0; i
<num_streams
; i
++) {
294 struct smb_filename
*smb_fname_stream
= NULL
;
296 if (strequal(stream_info
[i
].name
, "::$DATA")) {
300 status
= create_synthetic_smb_fname(talloc_tos(), fname
,
301 stream_info
[i
].name
, NULL
,
304 if (!NT_STATUS_IS_OK(status
)) {
305 DEBUG(0, ("talloc_aprintf failed\n"));
309 res
= SMB_VFS_UNLINK(conn
, smb_fname_stream
);
312 status
= map_nt_error_from_unix(errno
);
313 DEBUG(10, ("Could not delete stream %s: %s\n",
314 smb_fname_str_dbg(smb_fname_stream
),
316 TALLOC_FREE(smb_fname_stream
);
319 TALLOC_FREE(smb_fname_stream
);
327 /****************************************************************************
328 Deal with removing a share mode on last close.
329 ****************************************************************************/
331 static NTSTATUS
close_remove_share_mode(files_struct
*fsp
,
332 enum file_close_type close_type
)
334 connection_struct
*conn
= fsp
->conn
;
335 struct server_id self
= messaging_server_id(conn
->sconn
->msg_ctx
);
336 bool delete_file
= false;
337 bool changed_user
= false;
338 struct share_mode_lock
*lck
= NULL
;
339 NTSTATUS status
= NT_STATUS_OK
;
342 const struct security_unix_token
*del_token
= NULL
;
343 const struct security_token
*del_nt_token
= NULL
;
344 bool got_tokens
= false;
347 /* Ensure any pending write time updates are done. */
348 if (fsp
->update_write_time_event
) {
349 update_write_time_handler(fsp
->conn
->sconn
->ev_ctx
,
350 fsp
->update_write_time_event
,
356 * Lock the share entries, and determine if we should delete
357 * on close. If so delete whilst the lock is still in effect.
358 * This prevents race conditions with the file being created. JRA.
361 lck
= get_existing_share_mode_lock(talloc_tos(), fsp
->file_id
);
363 DEBUG(0, ("close_remove_share_mode: Could not get share mode "
364 "lock for file %s\n", fsp_str_dbg(fsp
)));
365 return NT_STATUS_INVALID_PARAMETER
;
368 if (fsp
->write_time_forced
) {
369 DEBUG(10,("close_remove_share_mode: write time forced "
372 set_close_write_time(fsp
, lck
->data
->changed_write_time
);
373 } else if (fsp
->update_write_time_on_close
) {
374 /* Someone had a pending write. */
375 if (null_timespec(fsp
->close_write_time
)) {
376 DEBUG(10,("close_remove_share_mode: update to current time "
379 /* Update to current time due to "normal" write. */
380 set_close_write_time(fsp
, timespec_current());
382 DEBUG(10,("close_remove_share_mode: write time pending "
385 /* Update to time set on close call. */
386 set_close_write_time(fsp
, fsp
->close_write_time
);
390 if (fsp
->initial_delete_on_close
&&
391 !is_delete_on_close_set(lck
, fsp
->name_hash
)) {
392 bool became_user
= False
;
394 /* Initial delete on close was set and no one else
395 * wrote a real delete on close. */
397 if (get_current_vuid(conn
) != fsp
->vuid
) {
398 become_user(conn
, fsp
->vuid
);
401 fsp
->delete_on_close
= true;
402 set_delete_on_close_lck(fsp
, lck
, True
,
403 get_current_nttok(conn
),
404 get_current_utok(conn
));
410 delete_file
= is_delete_on_close_set(lck
, fsp
->name_hash
);
414 /* See if others still have the file open via this pathname.
415 If this is the case, then don't delete. If all opens are
417 for (i
=0; i
<lck
->data
->num_share_modes
; i
++) {
418 struct share_mode_entry
*e
= &lck
->data
->share_modes
[i
];
420 if (!is_valid_share_mode_entry(e
)) {
423 if (e
->name_hash
!= fsp
->name_hash
) {
427 && (e
->flags
& SHARE_MODE_FLAG_POSIX_OPEN
)) {
430 if (serverid_equal(&self
, &e
->pid
) &&
431 (e
->share_file_id
== fsp
->fh
->gen_id
)) {
434 if (share_mode_stale_pid(lck
->data
, i
)) {
442 /* Notify any deferred opens waiting on this close. */
443 notify_deferred_opens(conn
->sconn
, lck
);
444 reply_to_oplock_break_requests(fsp
);
447 * NT can set delete_on_close of the last open
448 * reference to a file.
451 normal_close
= (close_type
== NORMAL_CLOSE
|| close_type
== SHUTDOWN_CLOSE
);
453 if (!normal_close
|| !delete_file
) {
455 if (!del_share_mode(lck
, fsp
)) {
456 DEBUG(0, ("close_remove_share_mode: Could not delete "
457 "share entry for file %s\n",
466 * Ok, we have to delete the file
469 DEBUG(5,("close_remove_share_mode: file %s. Delete on close was set "
470 "- deleting file.\n", fsp_str_dbg(fsp
)));
473 * Don't try to update the write time when we delete the file
475 fsp
->update_write_time_on_close
= false;
477 got_tokens
= get_delete_on_close_token(lck
, fsp
->name_hash
,
478 &del_nt_token
, &del_token
);
479 SMB_ASSERT(got_tokens
);
481 if (!unix_token_equal(del_token
, get_current_utok(conn
))) {
482 /* Become the user who requested the delete. */
484 DEBUG(5,("close_remove_share_mode: file %s. "
485 "Change user to uid %u\n",
487 (unsigned int)del_token
->uid
));
489 if (!push_sec_ctx()) {
490 smb_panic("close_remove_share_mode: file %s. failed to push "
494 set_sec_ctx(del_token
->uid
,
503 /* We can only delete the file if the name we have is still valid and
504 hasn't been renamed. */
506 tmp_status
= vfs_stat_fsp(fsp
);
507 if (!NT_STATUS_IS_OK(tmp_status
)) {
508 DEBUG(5,("close_remove_share_mode: file %s. Delete on close "
509 "was set and stat failed with error %s\n",
510 fsp_str_dbg(fsp
), nt_errstr(tmp_status
)));
512 * Don't save the errno here, we ignore this error
517 id
= vfs_file_id_from_sbuf(conn
, &fsp
->fsp_name
->st
);
519 if (!file_id_equal(&fsp
->file_id
, &id
)) {
520 DEBUG(5,("close_remove_share_mode: file %s. Delete on close "
521 "was set and dev and/or inode does not match\n",
523 DEBUG(5,("close_remove_share_mode: file %s. stored file_id %s, "
526 file_id_string_tos(&fsp
->file_id
),
527 file_id_string_tos(&id
)));
529 * Don't save the errno here, we ignore this error
534 if ((conn
->fs_capabilities
& FILE_NAMED_STREAMS
)
535 && !is_ntfs_stream_smb_fname(fsp
->fsp_name
)) {
537 status
= delete_all_streams(conn
, fsp
->fsp_name
->base_name
);
539 if (!NT_STATUS_IS_OK(status
)) {
540 DEBUG(5, ("delete_all_streams failed: %s\n",
547 if (SMB_VFS_UNLINK(conn
, fsp
->fsp_name
) != 0) {
549 * This call can potentially fail as another smbd may
550 * have had the file open with delete on close set and
551 * deleted it when its last reference to this file
552 * went away. Hence we log this but not at debug level
556 DEBUG(5,("close_remove_share_mode: file %s. Delete on close "
557 "was set and unlink failed with error %s\n",
558 fsp_str_dbg(fsp
), strerror(errno
)));
560 status
= map_nt_error_from_unix(errno
);
563 /* As we now have POSIX opens which can unlink
564 * with other open files we may have taken
565 * this code path with more than one share mode
566 * entry - ensure we only delete once by resetting
567 * the delete on close flag. JRA.
570 fsp
->delete_on_close
= false;
571 set_delete_on_close_lck(fsp
, lck
, false, NULL
, NULL
);
580 if (!del_share_mode(lck
, fsp
)) {
581 DEBUG(0, ("close_remove_share_mode: Could not delete share "
582 "entry for file %s\n", fsp_str_dbg(fsp
)));
589 * Do the notification after we released the share
590 * mode lock. Inside notify_fname we take out another
591 * tdb lock. With ctdb also accessing our databases,
592 * this can lead to deadlocks. Putting this notify
593 * after the TALLOC_FREE(lck) above we avoid locking
594 * two records simultaneously. Notifies are async and
595 * informational only, so calling the notify_fname
596 * without holding the share mode lock should not do
599 notify_fname(conn
, NOTIFY_ACTION_REMOVED
,
600 FILE_NOTIFY_CHANGE_FILE_NAME
,
601 fsp
->fsp_name
->base_name
);
607 void set_close_write_time(struct files_struct
*fsp
, struct timespec ts
)
609 DEBUG(6,("close_write_time: %s" , time_to_asc(convert_timespec_to_time_t(ts
))));
611 if (null_timespec(ts
)) {
614 fsp
->write_time_forced
= false;
615 fsp
->update_write_time_on_close
= true;
616 fsp
->close_write_time
= ts
;
619 static NTSTATUS
update_write_time_on_close(struct files_struct
*fsp
)
621 struct smb_file_time ft
;
623 struct share_mode_lock
*lck
= NULL
;
627 if (!fsp
->update_write_time_on_close
) {
631 if (null_timespec(fsp
->close_write_time
)) {
632 fsp
->close_write_time
= timespec_current();
635 /* Ensure we have a valid stat struct for the source. */
636 status
= vfs_stat_fsp(fsp
);
637 if (!NT_STATUS_IS_OK(status
)) {
641 if (!VALID_STAT(fsp
->fsp_name
->st
)) {
642 /* if it doesn't seem to be a real file */
647 * get_existing_share_mode_lock() isn't really the right
648 * call here, as we're being called after
649 * close_remove_share_mode() inside close_normal_file()
650 * so it's quite normal to not have an existing share
651 * mode here. However, get_share_mode_lock() doesn't
652 * work because that will create a new share mode if
653 * one doesn't exist - so stick with this call (just
654 * ignore any error we get if the share mode doesn't
658 lck
= get_existing_share_mode_lock(talloc_tos(), fsp
->file_id
);
660 /* On close if we're changing the real file time we
661 * must update it in the open file db too. */
662 (void)set_write_time(fsp
->file_id
, fsp
->close_write_time
);
664 /* Close write times overwrite sticky write times
665 so we must replace any sticky write time here. */
666 if (!null_timespec(lck
->data
->changed_write_time
)) {
667 (void)set_sticky_write_time(fsp
->file_id
, fsp
->close_write_time
);
672 ft
.mtime
= fsp
->close_write_time
;
673 /* As this is a close based update, we are not directly changing the
674 file attributes from a client call, but indirectly from a write. */
675 status
= smb_set_file_time(fsp
->conn
, fsp
, fsp
->fsp_name
, &ft
, false);
676 if (!NT_STATUS_IS_OK(status
)) {
677 DEBUG(10,("update_write_time_on_close: smb_set_file_time "
678 "on file %s returned %s\n",
687 static NTSTATUS
ntstatus_keeperror(NTSTATUS s1
, NTSTATUS s2
)
689 if (!NT_STATUS_IS_OK(s1
)) {
695 /****************************************************************************
698 close_type can be NORMAL_CLOSE=0,SHUTDOWN_CLOSE,ERROR_CLOSE.
699 printing and magic scripts are only run on normal close.
700 delete on close is done on normal and shutdown close.
701 ****************************************************************************/
703 static NTSTATUS
close_normal_file(struct smb_request
*req
, files_struct
*fsp
,
704 enum file_close_type close_type
)
706 NTSTATUS status
= NT_STATUS_OK
;
708 connection_struct
*conn
= fsp
->conn
;
710 if (fsp
->num_aio_requests
!= 0) {
712 * reply_close and the smb2 close must have taken care of
713 * this. No other callers of close_file should ever have
716 * We need to panic here because if we close() the fd while we
717 * have outstanding async I/O requests, in the worst case we
718 * could end up writing to the wrong file.
720 DEBUG(0, ("fsp->num_aio_requests=%u\n",
721 fsp
->num_aio_requests
));
722 smb_panic("can not close with outstanding aio requests");
726 * If we're flushing on a close we can get a write
727 * error here, we must remember this.
730 tmp
= close_filestruct(fsp
);
731 status
= ntstatus_keeperror(status
, tmp
);
733 if (fsp
->print_file
) {
734 /* FIXME: return spool errors */
735 print_spool_end(fsp
, close_type
);
740 /* Remove the oplock before potentially deleting the file. */
741 if(fsp
->oplock_type
) {
742 release_file_oplock(fsp
);
745 /* If this is an old DOS or FCB open and we have multiple opens on
746 the same handle we only have one share mode. Ensure we only remove
747 the share mode on the last close. */
749 if (fsp
->fh
->ref_count
== 1) {
750 /* Should we return on error here... ? */
751 tmp
= close_remove_share_mode(fsp
, close_type
);
752 status
= ntstatus_keeperror(status
, tmp
);
755 locking_close_file(conn
->sconn
->msg_ctx
, fsp
, close_type
);
758 status
= ntstatus_keeperror(status
, tmp
);
760 /* check for magic scripts */
761 if (close_type
== NORMAL_CLOSE
) {
762 tmp
= check_magic(fsp
);
763 status
= ntstatus_keeperror(status
, tmp
);
767 * Ensure pending modtime is set after close.
770 tmp
= update_write_time_on_close(fsp
);
771 if (NT_STATUS_EQUAL(tmp
, NT_STATUS_OBJECT_NAME_NOT_FOUND
)) {
772 /* Someone renamed the file or a parent directory containing
773 * this file. We can't do anything about this, we don't have
774 * an "update timestamp by fd" call in POSIX. Eat the error. */
779 status
= ntstatus_keeperror(status
, tmp
);
781 DEBUG(2,("%s closed file %s (numopen=%d) %s\n",
782 conn
->session_info
->unix_info
->unix_name
, fsp_str_dbg(fsp
),
783 conn
->num_files_open
- 1,
784 nt_errstr(status
) ));
789 /****************************************************************************
790 Static function used by reply_rmdir to delete an entire directory
791 tree recursively. Return True on ok, False on fail.
792 ****************************************************************************/
794 static bool recursive_rmdir(TALLOC_CTX
*ctx
,
795 connection_struct
*conn
,
796 struct smb_filename
*smb_dname
)
798 const char *dname
= NULL
;
799 char *talloced
= NULL
;
803 struct smb_Dir
*dir_hnd
;
805 SMB_ASSERT(!is_ntfs_stream_smb_fname(smb_dname
));
807 dir_hnd
= OpenDir(talloc_tos(), conn
, smb_dname
->base_name
, NULL
, 0);
811 while((dname
= ReadDirName(dir_hnd
, &offset
, &st
, &talloced
))) {
812 struct smb_filename
*smb_dname_full
= NULL
;
813 char *fullname
= NULL
;
814 bool do_break
= true;
817 if (ISDOT(dname
) || ISDOTDOT(dname
)) {
818 TALLOC_FREE(talloced
);
822 if (!is_visible_file(conn
, smb_dname
->base_name
, dname
, &st
,
824 TALLOC_FREE(talloced
);
828 /* Construct the full name. */
829 fullname
= talloc_asprintf(ctx
,
831 smb_dname
->base_name
,
838 status
= create_synthetic_smb_fname(talloc_tos(), fullname
,
841 if (!NT_STATUS_IS_OK(status
)) {
845 if(SMB_VFS_LSTAT(conn
, smb_dname_full
) != 0) {
849 if(smb_dname_full
->st
.st_ex_mode
& S_IFDIR
) {
850 if(!recursive_rmdir(ctx
, conn
, smb_dname_full
)) {
853 if(SMB_VFS_RMDIR(conn
,
854 smb_dname_full
->base_name
) != 0) {
857 } else if(SMB_VFS_UNLINK(conn
, smb_dname_full
) != 0) {
861 /* Successful iteration. */
865 TALLOC_FREE(smb_dname_full
);
866 TALLOC_FREE(fullname
);
867 TALLOC_FREE(talloced
);
873 TALLOC_FREE(dir_hnd
);
877 /****************************************************************************
878 The internals of the rmdir code - called elsewhere.
879 ****************************************************************************/
881 static NTSTATUS
rmdir_internals(TALLOC_CTX
*ctx
, files_struct
*fsp
)
883 connection_struct
*conn
= fsp
->conn
;
884 struct smb_filename
*smb_dname
= fsp
->fsp_name
;
887 SMB_ASSERT(!is_ntfs_stream_smb_fname(smb_dname
));
889 /* Might be a symlink. */
890 if(SMB_VFS_LSTAT(conn
, smb_dname
) != 0) {
891 return map_nt_error_from_unix(errno
);
894 if (S_ISLNK(smb_dname
->st
.st_ex_mode
)) {
895 /* Is what it points to a directory ? */
896 if(SMB_VFS_STAT(conn
, smb_dname
) != 0) {
897 return map_nt_error_from_unix(errno
);
899 if (!(S_ISDIR(smb_dname
->st
.st_ex_mode
))) {
900 return NT_STATUS_NOT_A_DIRECTORY
;
902 ret
= SMB_VFS_UNLINK(conn
, smb_dname
);
904 ret
= SMB_VFS_RMDIR(conn
, smb_dname
->base_name
);
907 notify_fname(conn
, NOTIFY_ACTION_REMOVED
,
908 FILE_NOTIFY_CHANGE_DIR_NAME
,
909 smb_dname
->base_name
);
913 if(((errno
== ENOTEMPTY
)||(errno
== EEXIST
)) && *lp_veto_files(talloc_tos(), SNUM(conn
))) {
915 * Check to see if the only thing in this directory are
916 * vetoed files/directories. If so then delete them and
917 * retry. If we fail to delete any of them (and we *don't*
918 * do a recursive delete) then fail the rmdir.
921 const char *dname
= NULL
;
922 char *talloced
= NULL
;
924 struct smb_Dir
*dir_hnd
= OpenDir(talloc_tos(), conn
,
925 smb_dname
->base_name
, NULL
,
928 if(dir_hnd
== NULL
) {
933 while ((dname
= ReadDirName(dir_hnd
, &dirpos
, &st
,
934 &talloced
)) != NULL
) {
935 if((strcmp(dname
, ".") == 0) || (strcmp(dname
, "..")==0)) {
936 TALLOC_FREE(talloced
);
939 if (!is_visible_file(conn
, smb_dname
->base_name
, dname
,
941 TALLOC_FREE(talloced
);
944 if(!IS_VETO_PATH(conn
, dname
)) {
945 TALLOC_FREE(dir_hnd
);
946 TALLOC_FREE(talloced
);
950 TALLOC_FREE(talloced
);
953 /* We only have veto files/directories.
954 * Are we allowed to delete them ? */
956 if(!lp_recursive_veto_delete(SNUM(conn
))) {
957 TALLOC_FREE(dir_hnd
);
962 /* Do a recursive delete. */
963 RewindDir(dir_hnd
,&dirpos
);
964 while ((dname
= ReadDirName(dir_hnd
, &dirpos
, &st
,
965 &talloced
)) != NULL
) {
966 struct smb_filename
*smb_dname_full
= NULL
;
967 char *fullname
= NULL
;
968 bool do_break
= true;
971 if (ISDOT(dname
) || ISDOTDOT(dname
)) {
972 TALLOC_FREE(talloced
);
975 if (!is_visible_file(conn
, smb_dname
->base_name
, dname
,
977 TALLOC_FREE(talloced
);
981 fullname
= talloc_asprintf(ctx
,
983 smb_dname
->base_name
,
991 status
= create_synthetic_smb_fname(talloc_tos(),
995 if (!NT_STATUS_IS_OK(status
)) {
996 errno
= map_errno_from_nt_status(status
);
1000 if(SMB_VFS_LSTAT(conn
, smb_dname_full
) != 0) {
1003 if(smb_dname_full
->st
.st_ex_mode
& S_IFDIR
) {
1004 if(!recursive_rmdir(ctx
, conn
,
1008 if(SMB_VFS_RMDIR(conn
,
1009 smb_dname_full
->base_name
) != 0) {
1012 } else if(SMB_VFS_UNLINK(conn
, smb_dname_full
) != 0) {
1016 /* Successful iteration. */
1020 TALLOC_FREE(fullname
);
1021 TALLOC_FREE(smb_dname_full
);
1022 TALLOC_FREE(talloced
);
1026 TALLOC_FREE(dir_hnd
);
1027 /* Retry the rmdir */
1028 ret
= SMB_VFS_RMDIR(conn
, smb_dname
->base_name
);
1034 DEBUG(3,("rmdir_internals: couldn't remove directory %s : "
1035 "%s\n", smb_fname_str_dbg(smb_dname
),
1037 return map_nt_error_from_unix(errno
);
1040 notify_fname(conn
, NOTIFY_ACTION_REMOVED
,
1041 FILE_NOTIFY_CHANGE_DIR_NAME
,
1042 smb_dname
->base_name
);
1044 return NT_STATUS_OK
;
1047 /****************************************************************************
1048 Close a directory opened by an NT SMB call.
1049 ****************************************************************************/
1051 static NTSTATUS
close_directory(struct smb_request
*req
, files_struct
*fsp
,
1052 enum file_close_type close_type
)
1054 struct server_id self
= messaging_server_id(fsp
->conn
->sconn
->msg_ctx
);
1055 struct share_mode_lock
*lck
= NULL
;
1056 bool delete_dir
= False
;
1057 NTSTATUS status
= NT_STATUS_OK
;
1058 NTSTATUS status1
= NT_STATUS_OK
;
1059 const struct security_token
*del_nt_token
= NULL
;
1060 const struct security_unix_token
*del_token
= NULL
;
1063 * NT can set delete_on_close of the last open
1064 * reference to a directory also.
1067 lck
= get_existing_share_mode_lock(talloc_tos(), fsp
->file_id
);
1069 DEBUG(0, ("close_directory: Could not get share mode lock for "
1070 "%s\n", fsp_str_dbg(fsp
)));
1071 return NT_STATUS_INVALID_PARAMETER
;
1074 if (fsp
->initial_delete_on_close
) {
1075 bool became_user
= False
;
1077 /* Initial delete on close was set - for
1078 * directories we don't care if anyone else
1079 * wrote a real delete on close. */
1081 if (get_current_vuid(fsp
->conn
) != fsp
->vuid
) {
1082 become_user(fsp
->conn
, fsp
->vuid
);
1085 send_stat_cache_delete_message(fsp
->conn
->sconn
->msg_ctx
,
1086 fsp
->fsp_name
->base_name
);
1087 set_delete_on_close_lck(fsp
, lck
, true,
1088 get_current_nttok(fsp
->conn
),
1089 get_current_utok(fsp
->conn
));
1090 fsp
->delete_on_close
= true;
1096 delete_dir
= get_delete_on_close_token(lck
, fsp
->name_hash
,
1097 &del_nt_token
, &del_token
);
1101 /* See if others still have the dir open. If this is the
1102 * case, then don't delete. If all opens are POSIX delete now. */
1103 for (i
=0; i
<lck
->data
->num_share_modes
; i
++) {
1104 struct share_mode_entry
*e
= &lck
->data
->share_modes
[i
];
1105 if (is_valid_share_mode_entry(e
) &&
1106 e
->name_hash
== fsp
->name_hash
) {
1107 if (fsp
->posix_open
&& (e
->flags
& SHARE_MODE_FLAG_POSIX_OPEN
)) {
1110 if (serverid_equal(&self
, &e
->pid
) &&
1111 (e
->share_file_id
== fsp
->fh
->gen_id
)) {
1114 if (share_mode_stale_pid(lck
->data
, i
)) {
1123 if ((close_type
== NORMAL_CLOSE
|| close_type
== SHUTDOWN_CLOSE
) &&
1126 /* Become the user who requested the delete. */
1128 if (!push_sec_ctx()) {
1129 smb_panic("close_directory: failed to push sec_ctx.\n");
1132 set_sec_ctx(del_token
->uid
,
1138 if (!del_share_mode(lck
, fsp
)) {
1139 DEBUG(0, ("close_directory: Could not delete share entry for "
1140 "%s\n", fsp_str_dbg(fsp
)));
1145 if ((fsp
->conn
->fs_capabilities
& FILE_NAMED_STREAMS
)
1146 && !is_ntfs_stream_smb_fname(fsp
->fsp_name
)) {
1148 status
= delete_all_streams(fsp
->conn
, fsp
->fsp_name
->base_name
);
1149 if (!NT_STATUS_IS_OK(status
)) {
1150 DEBUG(5, ("delete_all_streams failed: %s\n",
1151 nt_errstr(status
)));
1156 status
= rmdir_internals(talloc_tos(), fsp
);
1158 DEBUG(5,("close_directory: %s. Delete on close was set - "
1159 "deleting directory returned %s.\n",
1160 fsp_str_dbg(fsp
), nt_errstr(status
)));
1162 /* unbecome user. */
1166 * Ensure we remove any change notify requests that would
1167 * now fail as the directory has been deleted.
1170 if(NT_STATUS_IS_OK(status
)) {
1171 remove_pending_change_notify_requests_by_fid(fsp
, NT_STATUS_DELETE_PENDING
);
1174 if (!del_share_mode(lck
, fsp
)) {
1175 DEBUG(0, ("close_directory: Could not delete share entry for "
1176 "%s\n", fsp_str_dbg(fsp
)));
1180 remove_pending_change_notify_requests_by_fid(
1184 status1
= fd_close(fsp
);
1186 if (!NT_STATUS_IS_OK(status1
)) {
1187 DEBUG(0, ("Could not close dir! fname=%s, fd=%d, err=%d=%s\n",
1188 fsp_str_dbg(fsp
), fsp
->fh
->fd
, errno
,
1193 * Do the code common to files and directories.
1195 close_filestruct(fsp
);
1196 file_free(req
, fsp
);
1198 if (NT_STATUS_IS_OK(status
) && !NT_STATUS_IS_OK(status1
)) {
1204 /****************************************************************************
1205 Close a files_struct.
1206 ****************************************************************************/
1208 NTSTATUS
close_file(struct smb_request
*req
, files_struct
*fsp
,
1209 enum file_close_type close_type
)
1212 struct files_struct
*base_fsp
= fsp
->base_fsp
;
1214 if(fsp
->is_directory
) {
1215 status
= close_directory(req
, fsp
, close_type
);
1216 } else if (fsp
->fake_file_handle
!= NULL
) {
1217 status
= close_fake_file(req
, fsp
);
1219 status
= close_normal_file(req
, fsp
, close_type
);
1222 if ((base_fsp
!= NULL
) && (close_type
!= SHUTDOWN_CLOSE
)) {
1225 * fsp was a stream, the base fsp can't be a stream as well
1227 * For SHUTDOWN_CLOSE this is not possible here, because
1228 * SHUTDOWN_CLOSE only happens from files.c which walks the
1229 * complete list of files. If we mess with more than one fsp
1230 * those loops will become confused.
1233 SMB_ASSERT(base_fsp
->base_fsp
== NULL
);
1234 close_file(req
, base_fsp
, close_type
);
1240 /****************************************************************************
1241 Deal with an (authorized) message to close a file given the share mode
1243 ****************************************************************************/
1245 void msg_close_file(struct messaging_context
*msg_ctx
,
1248 struct server_id server_id
,
1251 files_struct
*fsp
= NULL
;
1252 struct share_mode_entry e
;
1253 struct smbd_server_connection
*sconn
=
1254 talloc_get_type_abort(private_data
,
1255 struct smbd_server_connection
);
1257 message_to_share_mode_entry(&e
, (char *)data
->data
);
1260 char *sm_str
= share_mode_str(NULL
, 0, &e
);
1262 smb_panic("talloc failed");
1264 DEBUG(10,("msg_close_file: got request to close share mode "
1265 "entry %s\n", sm_str
));
1266 TALLOC_FREE(sm_str
);
1269 fsp
= file_find_dif(sconn
, e
.id
, e
.share_file_id
);
1271 DEBUG(10,("msg_close_file: failed to find file.\n"));
1274 close_file(NULL
, fsp
, NORMAL_CLOSE
);