2 Unix SMB/CIFS implementation.
3 file opening and share modes
4 Copyright (C) Andrew Tridgell 1992-1998
5 Copyright (C) Jeremy Allison 2001-2004
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 "../libcli/security/security.h"
29 #include "../librpc/gen_ndr/ndr_security.h"
30 #include "../librpc/gen_ndr/open_files.h"
34 extern const struct generic_mapping file_generic_mapping
;
36 struct deferred_open_record
{
37 bool delayed_for_oplocks
;
41 /****************************************************************************
42 If the requester wanted DELETE_ACCESS and was rejected because
43 the file ACL didn't include DELETE_ACCESS, see if the parent ACL
45 ****************************************************************************/
47 static bool parent_override_delete(connection_struct
*conn
,
48 const struct smb_filename
*smb_fname
,
50 uint32_t rejected_mask
)
52 if ((access_mask
& DELETE_ACCESS
) &&
53 (rejected_mask
& DELETE_ACCESS
) &&
54 can_delete_file_in_directory(conn
, smb_fname
)) {
60 /****************************************************************************
61 Check if we have open rights.
62 ****************************************************************************/
64 NTSTATUS
smbd_check_access_rights(struct connection_struct
*conn
,
65 const struct smb_filename
*smb_fname
,
68 /* Check if we have rights to open. */
70 struct security_descriptor
*sd
= NULL
;
71 uint32_t rejected_share_access
;
72 uint32_t rejected_mask
= access_mask
;
74 rejected_share_access
= access_mask
& ~(conn
->share_access
);
76 if (rejected_share_access
) {
77 DEBUG(10, ("smbd_check_access_rights: rejected share access 0x%x "
79 (unsigned int)access_mask
,
80 smb_fname_str_dbg(smb_fname
),
81 (unsigned int)rejected_share_access
));
82 return NT_STATUS_ACCESS_DENIED
;
85 if (get_current_uid(conn
) == (uid_t
)0) {
86 /* I'm sorry sir, I didn't know you were root... */
87 DEBUG(10,("smbd_check_access_rights: root override "
88 "on %s. Granting 0x%x\n",
89 smb_fname_str_dbg(smb_fname
),
90 (unsigned int)access_mask
));
94 if ((access_mask
& DELETE_ACCESS
) && !lp_acl_check_permissions(SNUM(conn
))) {
95 DEBUG(10,("smbd_check_access_rights: not checking ACL "
96 "on DELETE_ACCESS on file %s. Granting 0x%x\n",
97 smb_fname_str_dbg(smb_fname
),
98 (unsigned int)access_mask
));
102 if (access_mask
== DELETE_ACCESS
&&
103 VALID_STAT(smb_fname
->st
) &&
104 S_ISLNK(smb_fname
->st
.st_ex_mode
)) {
105 /* We can always delete a symlink. */
106 DEBUG(10,("smbd_check_access_rights: not checking ACL "
107 "on DELETE_ACCESS on symlink %s.\n",
108 smb_fname_str_dbg(smb_fname
) ));
112 status
= SMB_VFS_GET_NT_ACL(conn
, smb_fname
->base_name
,
117 if (!NT_STATUS_IS_OK(status
)) {
118 DEBUG(10, ("smbd_check_access_rights: Could not get acl "
120 smb_fname_str_dbg(smb_fname
),
123 if (NT_STATUS_EQUAL(status
, NT_STATUS_ACCESS_DENIED
)) {
131 * Never test FILE_READ_ATTRIBUTES. se_access_check() also takes care of
132 * owner WRITE_DAC and READ_CONTROL.
134 status
= se_access_check(sd
,
135 get_current_nttok(conn
),
136 (access_mask
& ~FILE_READ_ATTRIBUTES
),
139 DEBUG(10,("smbd_check_access_rights: file %s requesting "
140 "0x%x returning 0x%x (%s)\n",
141 smb_fname_str_dbg(smb_fname
),
142 (unsigned int)access_mask
,
143 (unsigned int)rejected_mask
,
144 nt_errstr(status
) ));
146 if (!NT_STATUS_IS_OK(status
)) {
147 if (DEBUGLEVEL
>= 10) {
148 DEBUG(10,("smbd_check_access_rights: acl for %s is:\n",
149 smb_fname_str_dbg(smb_fname
) ));
150 NDR_PRINT_DEBUG(security_descriptor
, sd
);
156 if (NT_STATUS_IS_OK(status
) ||
157 !NT_STATUS_EQUAL(status
, NT_STATUS_ACCESS_DENIED
)) {
161 /* Here we know status == NT_STATUS_ACCESS_DENIED. */
165 if ((access_mask
& FILE_WRITE_ATTRIBUTES
) &&
166 (rejected_mask
& FILE_WRITE_ATTRIBUTES
) &&
167 !lp_store_dos_attributes(SNUM(conn
)) &&
168 (lp_map_readonly(SNUM(conn
)) ||
169 lp_map_archive(SNUM(conn
)) ||
170 lp_map_hidden(SNUM(conn
)) ||
171 lp_map_system(SNUM(conn
)))) {
172 rejected_mask
&= ~FILE_WRITE_ATTRIBUTES
;
174 DEBUG(10,("smbd_check_access_rights: "
176 "FILE_WRITE_ATTRIBUTES "
178 smb_fname_str_dbg(smb_fname
)));
181 if (parent_override_delete(conn
,
185 /* Were we trying to do an open
186 * for delete and didn't get DELETE
187 * access (only) ? Check if the
188 * directory allows DELETE_CHILD.
190 * http://blogs.msdn.com/oldnewthing/archive/2004/06/04/148426.aspx
193 rejected_mask
&= ~DELETE_ACCESS
;
195 DEBUG(10,("smbd_check_access_rights: "
199 smb_fname_str_dbg(smb_fname
)));
202 if (rejected_mask
!= 0) {
203 return NT_STATUS_ACCESS_DENIED
;
208 static NTSTATUS
check_parent_access(struct connection_struct
*conn
,
209 struct smb_filename
*smb_fname
,
210 uint32_t access_mask
)
213 char *parent_dir
= NULL
;
214 struct security_descriptor
*parent_sd
= NULL
;
215 uint32_t access_granted
= 0;
217 if (!parent_dirname(talloc_tos(),
218 smb_fname
->base_name
,
221 return NT_STATUS_NO_MEMORY
;
224 if (get_current_uid(conn
) == (uid_t
)0) {
225 /* I'm sorry sir, I didn't know you were root... */
226 DEBUG(10,("check_parent_access: root override "
227 "on %s. Granting 0x%x\n",
228 smb_fname_str_dbg(smb_fname
),
229 (unsigned int)access_mask
));
233 status
= SMB_VFS_GET_NT_ACL(conn
,
238 if (!NT_STATUS_IS_OK(status
)) {
239 DEBUG(5,("check_parent_access: SMB_VFS_GET_NT_ACL failed for "
240 "%s with error %s\n",
247 * Never test FILE_READ_ATTRIBUTES. se_access_check() also takes care of
248 * owner WRITE_DAC and READ_CONTROL.
250 status
= se_access_check(parent_sd
,
251 get_current_nttok(conn
),
252 (access_mask
& ~FILE_READ_ATTRIBUTES
),
254 if(!NT_STATUS_IS_OK(status
)) {
255 DEBUG(5,("check_parent_access: access check "
256 "on directory %s for "
257 "path %s for mask 0x%x returned (0x%x) %s\n",
259 smb_fname
->base_name
,
262 nt_errstr(status
) ));
269 /****************************************************************************
270 fd support routines - attempt to do a dos_open.
271 ****************************************************************************/
273 static NTSTATUS
fd_open(struct connection_struct
*conn
,
278 struct smb_filename
*smb_fname
= fsp
->fsp_name
;
279 NTSTATUS status
= NT_STATUS_OK
;
283 * Never follow symlinks on a POSIX client. The
284 * client should be doing this.
287 if (fsp
->posix_open
|| !lp_symlinks(SNUM(conn
))) {
292 fsp
->fh
->fd
= SMB_VFS_OPEN(conn
, smb_fname
, fsp
, flags
, mode
);
293 if (fsp
->fh
->fd
== -1) {
294 status
= map_nt_error_from_unix(errno
);
295 if (errno
== EMFILE
) {
296 static time_t last_warned
= 0L;
298 if (time((time_t *) NULL
) > last_warned
) {
299 DEBUG(0,("Too many open files, unable "
300 "to open more! smbd's max "
302 lp_max_open_files()));
303 last_warned
= time((time_t *) NULL
);
309 DEBUG(10,("fd_open: name %s, flags = 0%o mode = 0%o, fd = %d. %s\n",
310 smb_fname_str_dbg(smb_fname
), flags
, (int)mode
, fsp
->fh
->fd
,
311 (fsp
->fh
->fd
== -1) ? strerror(errno
) : "" ));
316 /****************************************************************************
317 Close the file associated with a fsp.
318 ****************************************************************************/
320 NTSTATUS
fd_close(files_struct
*fsp
)
327 if (fsp
->fh
->fd
== -1) {
328 return NT_STATUS_OK
; /* What we used to call a stat open. */
330 if (fsp
->fh
->ref_count
> 1) {
331 return NT_STATUS_OK
; /* Shared handle. Only close last reference. */
334 ret
= SMB_VFS_CLOSE(fsp
);
337 return map_nt_error_from_unix(errno
);
342 /****************************************************************************
343 Change the ownership of a file to that of the parent directory.
344 Do this by fd if possible.
345 ****************************************************************************/
347 void change_file_owner_to_parent(connection_struct
*conn
,
348 const char *inherit_from_dir
,
351 struct smb_filename
*smb_fname_parent
= NULL
;
355 status
= create_synthetic_smb_fname(talloc_tos(), inherit_from_dir
,
356 NULL
, NULL
, &smb_fname_parent
);
357 if (!NT_STATUS_IS_OK(status
)) {
361 ret
= SMB_VFS_STAT(conn
, smb_fname_parent
);
363 DEBUG(0,("change_file_owner_to_parent: failed to stat parent "
364 "directory %s. Error was %s\n",
365 smb_fname_str_dbg(smb_fname_parent
),
367 TALLOC_FREE(smb_fname_parent
);
371 if (smb_fname_parent
->st
.st_ex_uid
== fsp
->fsp_name
->st
.st_ex_uid
) {
372 /* Already this uid - no need to change. */
373 DEBUG(10,("change_file_owner_to_parent: file %s "
374 "is already owned by uid %d\n",
376 (int)fsp
->fsp_name
->st
.st_ex_uid
));
377 TALLOC_FREE(smb_fname_parent
);
382 ret
= SMB_VFS_FCHOWN(fsp
, smb_fname_parent
->st
.st_ex_uid
, (gid_t
)-1);
385 DEBUG(0,("change_file_owner_to_parent: failed to fchown "
386 "file %s to parent directory uid %u. Error "
387 "was %s\n", fsp_str_dbg(fsp
),
388 (unsigned int)smb_fname_parent
->st
.st_ex_uid
,
391 DEBUG(10,("change_file_owner_to_parent: changed new file %s to "
392 "parent directory uid %u.\n", fsp_str_dbg(fsp
),
393 (unsigned int)smb_fname_parent
->st
.st_ex_uid
));
394 /* Ensure the uid entry is updated. */
395 fsp
->fsp_name
->st
.st_ex_uid
= smb_fname_parent
->st
.st_ex_uid
;
398 TALLOC_FREE(smb_fname_parent
);
401 NTSTATUS
change_dir_owner_to_parent(connection_struct
*conn
,
402 const char *inherit_from_dir
,
404 SMB_STRUCT_STAT
*psbuf
)
406 struct smb_filename
*smb_fname_parent
= NULL
;
407 struct smb_filename
*smb_fname_cwd
= NULL
;
408 char *saved_dir
= NULL
;
409 TALLOC_CTX
*ctx
= talloc_tos();
410 NTSTATUS status
= NT_STATUS_OK
;
413 status
= create_synthetic_smb_fname(ctx
, inherit_from_dir
, NULL
, NULL
,
415 if (!NT_STATUS_IS_OK(status
)) {
419 ret
= SMB_VFS_STAT(conn
, smb_fname_parent
);
421 status
= map_nt_error_from_unix(errno
);
422 DEBUG(0,("change_dir_owner_to_parent: failed to stat parent "
423 "directory %s. Error was %s\n",
424 smb_fname_str_dbg(smb_fname_parent
),
429 /* We've already done an lstat into psbuf, and we know it's a
430 directory. If we can cd into the directory and the dev/ino
431 are the same then we can safely chown without races as
432 we're locking the directory in place by being in it. This
433 should work on any UNIX (thanks tridge :-). JRA.
436 saved_dir
= vfs_GetWd(ctx
,conn
);
438 status
= map_nt_error_from_unix(errno
);
439 DEBUG(0,("change_dir_owner_to_parent: failed to get "
440 "current working directory. Error was %s\n",
445 /* Chdir into the new path. */
446 if (vfs_ChDir(conn
, fname
) == -1) {
447 status
= map_nt_error_from_unix(errno
);
448 DEBUG(0,("change_dir_owner_to_parent: failed to change "
449 "current working directory to %s. Error "
450 "was %s\n", fname
, strerror(errno
) ));
454 status
= create_synthetic_smb_fname(ctx
, ".", NULL
, NULL
,
456 if (!NT_STATUS_IS_OK(status
)) {
460 ret
= SMB_VFS_STAT(conn
, smb_fname_cwd
);
462 status
= map_nt_error_from_unix(errno
);
463 DEBUG(0,("change_dir_owner_to_parent: failed to stat "
464 "directory '.' (%s) Error was %s\n",
465 fname
, strerror(errno
)));
469 /* Ensure we're pointing at the same place. */
470 if (smb_fname_cwd
->st
.st_ex_dev
!= psbuf
->st_ex_dev
||
471 smb_fname_cwd
->st
.st_ex_ino
!= psbuf
->st_ex_ino
) {
472 DEBUG(0,("change_dir_owner_to_parent: "
473 "device/inode on directory %s changed. "
474 "Refusing to chown !\n", fname
));
475 status
= NT_STATUS_ACCESS_DENIED
;
479 if (smb_fname_parent
->st
.st_ex_uid
== smb_fname_cwd
->st
.st_ex_uid
) {
480 /* Already this uid - no need to change. */
481 DEBUG(10,("change_dir_owner_to_parent: directory %s "
482 "is already owned by uid %d\n",
484 (int)smb_fname_cwd
->st
.st_ex_uid
));
485 status
= NT_STATUS_OK
;
490 ret
= SMB_VFS_LCHOWN(conn
, ".", smb_fname_parent
->st
.st_ex_uid
,
494 status
= map_nt_error_from_unix(errno
);
495 DEBUG(10,("change_dir_owner_to_parent: failed to chown "
496 "directory %s to parent directory uid %u. "
497 "Error was %s\n", fname
,
498 (unsigned int)smb_fname_parent
->st
.st_ex_uid
,
501 DEBUG(10,("change_dir_owner_to_parent: changed ownership of new "
502 "directory %s to parent directory uid %u.\n",
503 fname
, (unsigned int)smb_fname_parent
->st
.st_ex_uid
));
504 /* Ensure the uid entry is updated. */
505 psbuf
->st_ex_uid
= smb_fname_parent
->st
.st_ex_uid
;
509 vfs_ChDir(conn
,saved_dir
);
511 TALLOC_FREE(smb_fname_parent
);
512 TALLOC_FREE(smb_fname_cwd
);
516 /****************************************************************************
518 ****************************************************************************/
520 static NTSTATUS
open_file(files_struct
*fsp
,
521 connection_struct
*conn
,
522 struct smb_request
*req
,
523 const char *parent_dir
,
526 uint32 access_mask
, /* client requested access mask. */
527 uint32 open_access_mask
) /* what we're actually using in the open. */
529 struct smb_filename
*smb_fname
= fsp
->fsp_name
;
530 NTSTATUS status
= NT_STATUS_OK
;
531 int accmode
= (flags
& O_ACCMODE
);
532 int local_flags
= flags
;
533 bool file_existed
= VALID_STAT(fsp
->fsp_name
->st
);
534 bool file_created
= false;
539 /* Check permissions */
542 * This code was changed after seeing a client open request
543 * containing the open mode of (DENY_WRITE/read-only) with
544 * the 'create if not exist' bit set. The previous code
545 * would fail to open the file read only on a read-only share
546 * as it was checking the flags parameter directly against O_RDONLY,
547 * this was failing as the flags parameter was set to O_RDONLY|O_CREAT.
551 if (!CAN_WRITE(conn
)) {
552 /* It's a read-only share - fail if we wanted to write. */
553 if(accmode
!= O_RDONLY
|| (flags
& O_TRUNC
) || (flags
& O_APPEND
)) {
554 DEBUG(3,("Permission denied opening %s\n",
555 smb_fname_str_dbg(smb_fname
)));
556 return NT_STATUS_ACCESS_DENIED
;
557 } else if(flags
& O_CREAT
) {
558 /* We don't want to write - but we must make sure that
559 O_CREAT doesn't create the file if we have write
560 access into the directory.
562 flags
&= ~(O_CREAT
|O_EXCL
);
563 local_flags
&= ~(O_CREAT
|O_EXCL
);
568 * This little piece of insanity is inspired by the
569 * fact that an NT client can open a file for O_RDONLY,
570 * but set the create disposition to FILE_EXISTS_TRUNCATE.
571 * If the client *can* write to the file, then it expects to
572 * truncate the file, even though it is opening for readonly.
573 * Quicken uses this stupid trick in backup file creation...
574 * Thanks *greatly* to "David W. Chapman Jr." <dwcjr@inethouston.net>
575 * for helping track this one down. It didn't bite us in 2.0.x
576 * as we always opened files read-write in that release. JRA.
579 if ((accmode
== O_RDONLY
) && ((flags
& O_TRUNC
) == O_TRUNC
)) {
580 DEBUG(10,("open_file: truncate requested on read-only open "
581 "for file %s\n", smb_fname_str_dbg(smb_fname
)));
582 local_flags
= (flags
& ~O_ACCMODE
)|O_RDWR
;
585 if ((open_access_mask
& (FILE_READ_DATA
|FILE_WRITE_DATA
|FILE_APPEND_DATA
|FILE_EXECUTE
)) ||
586 (!file_existed
&& (local_flags
& O_CREAT
)) ||
587 ((local_flags
& O_TRUNC
) == O_TRUNC
) ) {
591 * We can't actually truncate here as the file may be locked.
592 * open_file_ntcreate will take care of the truncate later. JRA.
595 local_flags
&= ~O_TRUNC
;
597 #if defined(O_NONBLOCK) && defined(S_ISFIFO)
599 * We would block on opening a FIFO with no one else on the
600 * other end. Do what we used to do and add O_NONBLOCK to the
604 if (file_existed
&& S_ISFIFO(smb_fname
->st
.st_ex_mode
)) {
605 local_flags
|= O_NONBLOCK
;
609 /* Don't create files with Microsoft wildcard characters. */
612 * wildcard characters are allowed in stream names
613 * only test the basefilename
615 wild
= fsp
->base_fsp
->fsp_name
->base_name
;
617 wild
= smb_fname
->base_name
;
619 if ((local_flags
& O_CREAT
) && !file_existed
&&
621 return NT_STATUS_OBJECT_NAME_INVALID
;
624 /* Can we access this file ? */
625 if (!fsp
->base_fsp
) {
626 /* Only do this check on non-stream open. */
628 status
= smbd_check_access_rights(conn
,
631 } else if (local_flags
& O_CREAT
){
632 status
= check_parent_access(conn
,
636 /* File didn't exist and no O_CREAT. */
637 return NT_STATUS_OBJECT_NAME_NOT_FOUND
;
639 if (!NT_STATUS_IS_OK(status
)) {
640 DEBUG(10,("open_file: "
644 "smbd_check_access_rights" :
645 "check_parent_access",
646 smb_fname_str_dbg(smb_fname
),
647 nt_errstr(status
) ));
652 /* Actually do the open */
653 status
= fd_open(conn
, fsp
, local_flags
, unx_mode
);
654 if (!NT_STATUS_IS_OK(status
)) {
655 DEBUG(3,("Error opening file %s (%s) (local_flags=%d) "
656 "(flags=%d)\n", smb_fname_str_dbg(smb_fname
),
657 nt_errstr(status
),local_flags
,flags
));
661 if ((local_flags
& O_CREAT
) && !file_existed
) {
666 fsp
->fh
->fd
= -1; /* What we used to call a stat open. */
668 /* File must exist for a stat open. */
669 return NT_STATUS_OBJECT_NAME_NOT_FOUND
;
672 status
= smbd_check_access_rights(conn
,
676 if (NT_STATUS_EQUAL(status
, NT_STATUS_OBJECT_NAME_NOT_FOUND
) &&
678 S_ISLNK(smb_fname
->st
.st_ex_mode
)) {
679 /* This is a POSIX stat open for delete
680 * or rename on a symlink that points
682 DEBUG(10,("open_file: allowing POSIX "
683 "open on bad symlink %s\n",
684 smb_fname_str_dbg(smb_fname
)));
685 status
= NT_STATUS_OK
;
688 if (!NT_STATUS_IS_OK(status
)) {
689 DEBUG(10,("open_file: "
690 "smbd_check_access_rights on file "
692 smb_fname_str_dbg(smb_fname
),
693 nt_errstr(status
) ));
701 if (fsp
->fh
->fd
== -1) {
702 ret
= SMB_VFS_STAT(conn
, smb_fname
);
704 ret
= SMB_VFS_FSTAT(fsp
, &smb_fname
->st
);
705 /* If we have an fd, this stat should succeed. */
707 DEBUG(0,("Error doing fstat on open file %s "
709 smb_fname_str_dbg(smb_fname
),
714 /* For a non-io open, this stat failing means file not found. JRA */
716 status
= map_nt_error_from_unix(errno
);
722 bool need_re_stat
= false;
723 /* Do all inheritance work after we've
724 done a successful stat call and filled
725 in the stat struct in fsp->fsp_name. */
727 /* Inherit the ACL if required */
728 if (lp_inherit_perms(SNUM(conn
))) {
729 inherit_access_posix_acl(conn
, parent_dir
,
730 smb_fname
->base_name
,
735 /* Change the owner if required. */
736 if (lp_inherit_owner(SNUM(conn
))) {
737 change_file_owner_to_parent(conn
, parent_dir
,
743 if (fsp
->fh
->fd
== -1) {
744 ret
= SMB_VFS_STAT(conn
, smb_fname
);
746 ret
= SMB_VFS_FSTAT(fsp
, &smb_fname
->st
);
747 /* If we have an fd, this stat should succeed. */
749 DEBUG(0,("Error doing fstat on open file %s "
751 smb_fname_str_dbg(smb_fname
),
757 notify_fname(conn
, NOTIFY_ACTION_ADDED
,
758 FILE_NOTIFY_CHANGE_FILE_NAME
,
759 smb_fname
->base_name
);
764 * POSIX allows read-only opens of directories. We don't
765 * want to do this (we use a different code path for this)
766 * so catch a directory open and return an EISDIR. JRA.
769 if(S_ISDIR(smb_fname
->st
.st_ex_mode
)) {
772 return NT_STATUS_FILE_IS_A_DIRECTORY
;
775 fsp
->file_id
= vfs_file_id_from_sbuf(conn
, &smb_fname
->st
);
776 fsp
->vuid
= req
? req
->vuid
: UID_FIELD_INVALID
;
777 fsp
->file_pid
= req
? req
->smbpid
: 0;
778 fsp
->can_lock
= True
;
779 fsp
->can_read
= (access_mask
& (FILE_READ_DATA
)) ? True
: False
;
780 if (!CAN_WRITE(conn
)) {
781 fsp
->can_write
= False
;
783 fsp
->can_write
= (access_mask
& (FILE_WRITE_DATA
| FILE_APPEND_DATA
)) ?
786 fsp
->print_file
= NULL
;
787 fsp
->modified
= False
;
788 fsp
->sent_oplock_break
= NO_BREAK_SENT
;
789 fsp
->is_directory
= False
;
790 if (conn
->aio_write_behind_list
&&
791 is_in_path(smb_fname
->base_name
, conn
->aio_write_behind_list
,
792 conn
->case_sensitive
)) {
793 fsp
->aio_write_behind
= True
;
796 fsp
->wcp
= NULL
; /* Write cache pointer. */
798 DEBUG(2,("%s opened file %s read=%s write=%s (numopen=%d)\n",
799 conn
->session_info
->unix_info
->unix_name
,
800 smb_fname_str_dbg(smb_fname
),
801 BOOLSTR(fsp
->can_read
), BOOLSTR(fsp
->can_write
),
802 conn
->num_files_open
));
808 /****************************************************************************
809 Check if we can open a file with a share mode.
810 Returns True if conflict, False if not.
811 ****************************************************************************/
813 static bool share_conflict(struct share_mode_entry
*entry
,
817 DEBUG(10,("share_conflict: entry->access_mask = 0x%x, "
818 "entry->share_access = 0x%x, "
819 "entry->private_options = 0x%x\n",
820 (unsigned int)entry
->access_mask
,
821 (unsigned int)entry
->share_access
,
822 (unsigned int)entry
->private_options
));
824 DEBUG(10,("share_conflict: access_mask = 0x%x, share_access = 0x%x\n",
825 (unsigned int)access_mask
, (unsigned int)share_access
));
827 if ((entry
->access_mask
& (FILE_WRITE_DATA
|
831 DELETE_ACCESS
)) == 0) {
832 DEBUG(10,("share_conflict: No conflict due to "
833 "entry->access_mask = 0x%x\n",
834 (unsigned int)entry
->access_mask
));
838 if ((access_mask
& (FILE_WRITE_DATA
|
842 DELETE_ACCESS
)) == 0) {
843 DEBUG(10,("share_conflict: No conflict due to "
844 "access_mask = 0x%x\n",
845 (unsigned int)access_mask
));
849 #if 1 /* JRA TEST - Superdebug. */
850 #define CHECK_MASK(num, am, right, sa, share) \
851 DEBUG(10,("share_conflict: [%d] am (0x%x) & right (0x%x) = 0x%x\n", \
852 (unsigned int)(num), (unsigned int)(am), \
853 (unsigned int)(right), (unsigned int)(am)&(right) )); \
854 DEBUG(10,("share_conflict: [%d] sa (0x%x) & share (0x%x) = 0x%x\n", \
855 (unsigned int)(num), (unsigned int)(sa), \
856 (unsigned int)(share), (unsigned int)(sa)&(share) )); \
857 if (((am) & (right)) && !((sa) & (share))) { \
858 DEBUG(10,("share_conflict: check %d conflict am = 0x%x, right = 0x%x, \
859 sa = 0x%x, share = 0x%x\n", (num), (unsigned int)(am), (unsigned int)(right), (unsigned int)(sa), \
860 (unsigned int)(share) )); \
864 #define CHECK_MASK(num, am, right, sa, share) \
865 if (((am) & (right)) && !((sa) & (share))) { \
866 DEBUG(10,("share_conflict: check %d conflict am = 0x%x, right = 0x%x, \
867 sa = 0x%x, share = 0x%x\n", (num), (unsigned int)(am), (unsigned int)(right), (unsigned int)(sa), \
868 (unsigned int)(share) )); \
873 CHECK_MASK(1, entry
->access_mask
, FILE_WRITE_DATA
| FILE_APPEND_DATA
,
874 share_access
, FILE_SHARE_WRITE
);
875 CHECK_MASK(2, access_mask
, FILE_WRITE_DATA
| FILE_APPEND_DATA
,
876 entry
->share_access
, FILE_SHARE_WRITE
);
878 CHECK_MASK(3, entry
->access_mask
, FILE_READ_DATA
| FILE_EXECUTE
,
879 share_access
, FILE_SHARE_READ
);
880 CHECK_MASK(4, access_mask
, FILE_READ_DATA
| FILE_EXECUTE
,
881 entry
->share_access
, FILE_SHARE_READ
);
883 CHECK_MASK(5, entry
->access_mask
, DELETE_ACCESS
,
884 share_access
, FILE_SHARE_DELETE
);
885 CHECK_MASK(6, access_mask
, DELETE_ACCESS
,
886 entry
->share_access
, FILE_SHARE_DELETE
);
888 DEBUG(10,("share_conflict: No conflict.\n"));
892 #if defined(DEVELOPER)
893 static void validate_my_share_entries(struct smbd_server_connection
*sconn
,
895 struct share_mode_entry
*share_entry
)
897 struct server_id self
= messaging_server_id(sconn
->msg_ctx
);
900 if (!procid_equal(&self
, &share_entry
->pid
)) {
904 if (is_deferred_open_entry(share_entry
) &&
905 !open_was_deferred(sconn
, share_entry
->op_mid
)) {
906 char *str
= talloc_asprintf(talloc_tos(),
907 "Got a deferred entry without a request: "
909 share_mode_str(talloc_tos(), num
, share_entry
));
913 if (!is_valid_share_mode_entry(share_entry
)) {
917 fsp
= file_find_dif(sconn
, share_entry
->id
,
918 share_entry
->share_file_id
);
920 DEBUG(0,("validate_my_share_entries: PANIC : %s\n",
921 share_mode_str(talloc_tos(), num
, share_entry
) ));
922 smb_panic("validate_my_share_entries: Cannot match a "
923 "share entry with an open file\n");
926 if (is_deferred_open_entry(share_entry
)) {
930 if ((share_entry
->op_type
== NO_OPLOCK
) &&
931 (fsp
->oplock_type
== FAKE_LEVEL_II_OPLOCK
)) {
932 /* Someone has already written to it, but I haven't yet
937 if (((uint16
)fsp
->oplock_type
) != share_entry
->op_type
) {
946 DEBUG(0,("validate_my_share_entries: PANIC : %s\n",
947 share_mode_str(talloc_tos(), num
, share_entry
) ));
948 str
= talloc_asprintf(talloc_tos(),
949 "validate_my_share_entries: "
950 "file %s, oplock_type = 0x%x, op_type = 0x%x\n",
951 fsp
->fsp_name
->base_name
,
952 (unsigned int)fsp
->oplock_type
,
953 (unsigned int)share_entry
->op_type
);
959 bool is_stat_open(uint32 access_mask
)
961 return (access_mask
&&
962 ((access_mask
& ~(SYNCHRONIZE_ACCESS
| FILE_READ_ATTRIBUTES
|
963 FILE_WRITE_ATTRIBUTES
))==0) &&
964 ((access_mask
& (SYNCHRONIZE_ACCESS
|FILE_READ_ATTRIBUTES
|
965 FILE_WRITE_ATTRIBUTES
)) != 0));
968 /****************************************************************************
969 Deal with share modes
970 Invarient: Share mode must be locked on entry and exit.
971 Returns -1 on error, or number of share modes on success (may be zero).
972 ****************************************************************************/
974 static NTSTATUS
open_mode_check(connection_struct
*conn
,
975 struct share_mode_lock
*lck
,
979 uint32 create_options
,
984 if(lck
->data
->num_share_modes
== 0) {
988 /* A delete on close prohibits everything */
990 if (is_delete_on_close_set(lck
, name_hash
)) {
992 * Check the delete on close token
993 * is valid. It could have been left
994 * after a server crash.
996 for(i
= 0; i
< lck
->data
->num_share_modes
; i
++) {
997 if (!share_mode_stale_pid(lck
->data
, i
)) {
999 *file_existed
= true;
1001 return NT_STATUS_DELETE_PENDING
;
1004 return NT_STATUS_OK
;
1007 if (is_stat_open(access_mask
)) {
1008 /* Stat open that doesn't trigger oplock breaks or share mode
1009 * checks... ! JRA. */
1010 return NT_STATUS_OK
;
1014 * Check if the share modes will give us access.
1017 #if defined(DEVELOPER)
1018 for(i
= 0; i
< lck
->data
->num_share_modes
; i
++) {
1019 validate_my_share_entries(conn
->sconn
, i
,
1020 &lck
->data
->share_modes
[i
]);
1024 if (!lp_share_modes(SNUM(conn
))) {
1025 return NT_STATUS_OK
;
1028 /* Now we check the share modes, after any oplock breaks. */
1029 for(i
= 0; i
< lck
->data
->num_share_modes
; i
++) {
1031 if (!is_valid_share_mode_entry(&lck
->data
->share_modes
[i
])) {
1035 /* someone else has a share lock on it, check to see if we can
1037 if (share_conflict(&lck
->data
->share_modes
[i
],
1038 access_mask
, share_access
)) {
1040 if (share_mode_stale_pid(lck
->data
, i
)) {
1044 *file_existed
= true;
1046 return NT_STATUS_SHARING_VIOLATION
;
1050 if (lck
->data
->num_share_modes
!= 0) {
1051 *file_existed
= true;
1054 return NT_STATUS_OK
;
1057 static bool is_delete_request(files_struct
*fsp
) {
1058 return ((fsp
->access_mask
== DELETE_ACCESS
) &&
1059 (fsp
->oplock_type
== NO_OPLOCK
));
1063 * Send a break message to the oplock holder and delay the open for
1067 static NTSTATUS
send_break_message(files_struct
*fsp
,
1068 struct share_mode_entry
*exclusive
,
1073 char msg
[MSG_SMB_SHARE_MODE_ENTRY_SIZE
];
1075 DEBUG(10, ("Sending break request to PID %s\n",
1076 procid_str_static(&exclusive
->pid
)));
1077 exclusive
->op_mid
= mid
;
1079 /* Create the message. */
1080 share_mode_entry_to_message(msg
, exclusive
);
1082 /* Add in the FORCE_OPLOCK_BREAK_TO_NONE bit in the message if set. We
1083 don't want this set in the share mode struct pointed to by lck. */
1085 if (oplock_request
& FORCE_OPLOCK_BREAK_TO_NONE
) {
1086 SSVAL(msg
,OP_BREAK_MSG_OP_TYPE_OFFSET
,
1087 exclusive
->op_type
| FORCE_OPLOCK_BREAK_TO_NONE
);
1090 status
= messaging_send_buf(fsp
->conn
->sconn
->msg_ctx
, exclusive
->pid
,
1091 MSG_SMB_BREAK_REQUEST
,
1093 MSG_SMB_SHARE_MODE_ENTRY_SIZE
);
1094 if (!NT_STATUS_IS_OK(status
)) {
1095 DEBUG(3, ("Could not send oplock break message: %s\n",
1096 nt_errstr(status
)));
1103 * Return share_mode_entry pointers for :
1104 * 1). Batch oplock entry.
1105 * 2). Batch or exclusive oplock entry (may be identical to #1).
1106 * bool have_level2_oplock
1107 * bool have_no_oplock.
1108 * Do internal consistency checks on the share mode for a file.
1111 static void find_oplock_types(files_struct
*fsp
,
1113 const struct share_mode_lock
*lck
,
1114 struct share_mode_entry
**pp_batch
,
1115 struct share_mode_entry
**pp_ex_or_batch
,
1117 bool *got_no_oplock
)
1122 *pp_ex_or_batch
= NULL
;
1123 *got_level2
= false;
1124 *got_no_oplock
= false;
1126 /* Ignore stat or internal opens, as is done in
1127 delay_for_batch_oplocks() and
1128 delay_for_exclusive_oplocks().
1130 if ((oplock_request
& INTERNAL_OPEN_ONLY
) || is_stat_open(fsp
->access_mask
)) {
1134 for (i
=0; i
<lck
->data
->num_share_modes
; i
++) {
1135 if (!is_valid_share_mode_entry(&lck
->data
->share_modes
[i
])) {
1139 if (lck
->data
->share_modes
[i
].op_type
== NO_OPLOCK
&&
1140 is_stat_open(lck
->data
->share_modes
[i
].access_mask
)) {
1141 /* We ignore stat opens in the table - they
1142 always have NO_OPLOCK and never get or
1143 cause breaks. JRA. */
1147 if (BATCH_OPLOCK_TYPE(lck
->data
->share_modes
[i
].op_type
)) {
1148 /* batch - can only be one. */
1149 if (share_mode_stale_pid(lck
->data
, i
)) {
1150 DEBUG(10, ("Found stale batch oplock\n"));
1153 if (*pp_ex_or_batch
|| *pp_batch
|| *got_level2
|| *got_no_oplock
) {
1154 smb_panic("Bad batch oplock entry.");
1156 *pp_batch
= &lck
->data
->share_modes
[i
];
1159 if (EXCLUSIVE_OPLOCK_TYPE(lck
->data
->share_modes
[i
].op_type
)) {
1160 if (share_mode_stale_pid(lck
->data
, i
)) {
1161 DEBUG(10, ("Found stale duplicate oplock\n"));
1164 /* Exclusive or batch - can only be one. */
1165 if (*pp_ex_or_batch
|| *got_level2
|| *got_no_oplock
) {
1166 smb_panic("Bad exclusive or batch oplock entry.");
1168 *pp_ex_or_batch
= &lck
->data
->share_modes
[i
];
1171 if (LEVEL_II_OPLOCK_TYPE(lck
->data
->share_modes
[i
].op_type
)) {
1172 if (*pp_batch
|| *pp_ex_or_batch
) {
1173 if (share_mode_stale_pid(lck
->data
, i
)) {
1174 DEBUG(10, ("Found stale LevelII "
1178 smb_panic("Bad levelII oplock entry.");
1183 if (lck
->data
->share_modes
[i
].op_type
== NO_OPLOCK
) {
1184 if (*pp_batch
|| *pp_ex_or_batch
) {
1185 if (share_mode_stale_pid(lck
->data
, i
)) {
1186 DEBUG(10, ("Found stale NO_OPLOCK "
1190 smb_panic("Bad no oplock entry.");
1192 *got_no_oplock
= true;
1197 static bool delay_for_batch_oplocks(files_struct
*fsp
,
1200 struct share_mode_entry
*batch_entry
)
1202 if ((oplock_request
& INTERNAL_OPEN_ONLY
) || is_stat_open(fsp
->access_mask
)) {
1205 if (batch_entry
== NULL
) {
1209 /* Found a batch oplock */
1210 send_break_message(fsp
, batch_entry
, mid
, oplock_request
);
1214 static bool delay_for_exclusive_oplocks(files_struct
*fsp
,
1217 struct share_mode_entry
*ex_entry
)
1221 if ((oplock_request
& INTERNAL_OPEN_ONLY
) || is_stat_open(fsp
->access_mask
)) {
1224 if (ex_entry
== NULL
) {
1228 /* Found an exclusive or batch oplock */
1230 delay_it
= is_delete_request(fsp
) ?
1231 BATCH_OPLOCK_TYPE(ex_entry
->op_type
) : true;
1237 send_break_message(fsp
, ex_entry
, mid
, oplock_request
);
1241 static bool file_has_brlocks(files_struct
*fsp
)
1243 struct byte_range_lock
*br_lck
;
1245 br_lck
= brl_get_locks_readonly(fsp
);
1249 return br_lck
->num_locks
> 0 ? true : false;
1252 static void grant_fsp_oplock_type(files_struct
*fsp
,
1254 bool got_level2_oplock
,
1255 bool got_a_none_oplock
)
1257 bool allow_level2
= (global_client_caps
& CAP_LEVEL_II_OPLOCKS
) &&
1258 lp_level2_oplocks(SNUM(fsp
->conn
));
1260 /* Start by granting what the client asked for,
1261 but ensure no SAMBA_PRIVATE bits can be set. */
1262 fsp
->oplock_type
= (oplock_request
& ~SAMBA_PRIVATE_OPLOCK_MASK
);
1264 if (oplock_request
& INTERNAL_OPEN_ONLY
) {
1265 /* No oplocks on internal open. */
1266 fsp
->oplock_type
= NO_OPLOCK
;
1267 DEBUG(10,("grant_fsp_oplock_type: oplock type 0x%x on file %s\n",
1268 fsp
->oplock_type
, fsp_str_dbg(fsp
)));
1270 } else if (lp_locking(fsp
->conn
->params
) && file_has_brlocks(fsp
)) {
1271 DEBUG(10,("grant_fsp_oplock_type: file %s has byte range locks\n",
1273 fsp
->oplock_type
= NO_OPLOCK
;
1276 if (is_stat_open(fsp
->access_mask
)) {
1277 /* Leave the value already set. */
1278 DEBUG(10,("grant_fsp_oplock_type: oplock type 0x%x on file %s\n",
1279 fsp
->oplock_type
, fsp_str_dbg(fsp
)));
1284 * Match what was requested (fsp->oplock_type) with
1285 * what was found in the existing share modes.
1288 if (got_a_none_oplock
) {
1289 fsp
->oplock_type
= NO_OPLOCK
;
1290 } else if (got_level2_oplock
) {
1291 if (fsp
->oplock_type
== NO_OPLOCK
||
1292 fsp
->oplock_type
== FAKE_LEVEL_II_OPLOCK
) {
1293 /* Store a level2 oplock, but don't tell the client */
1294 fsp
->oplock_type
= FAKE_LEVEL_II_OPLOCK
;
1296 fsp
->oplock_type
= LEVEL_II_OPLOCK
;
1299 /* All share_mode_entries are placeholders or deferred.
1300 * Silently upgrade to fake levelII if the client didn't
1301 * ask for an oplock. */
1302 if (fsp
->oplock_type
== NO_OPLOCK
) {
1303 /* Store a level2 oplock, but don't tell the client */
1304 fsp
->oplock_type
= FAKE_LEVEL_II_OPLOCK
;
1309 * Don't grant level2 to clients that don't want them
1310 * or if we've turned them off.
1312 if (fsp
->oplock_type
== LEVEL_II_OPLOCK
&& !allow_level2
) {
1313 fsp
->oplock_type
= FAKE_LEVEL_II_OPLOCK
;
1316 DEBUG(10,("grant_fsp_oplock_type: oplock type 0x%x on file %s\n",
1317 fsp
->oplock_type
, fsp_str_dbg(fsp
)));
1320 bool request_timed_out(struct timeval request_time
,
1321 struct timeval timeout
)
1323 struct timeval now
, end_time
;
1325 end_time
= timeval_sum(&request_time
, &timeout
);
1326 return (timeval_compare(&end_time
, &now
) < 0);
1329 /****************************************************************************
1330 Handle the 1 second delay in returning a SHARING_VIOLATION error.
1331 ****************************************************************************/
1333 static void defer_open(struct share_mode_lock
*lck
,
1334 struct timeval request_time
,
1335 struct timeval timeout
,
1336 struct smb_request
*req
,
1337 struct deferred_open_record
*state
)
1339 struct server_id self
= messaging_server_id(req
->sconn
->msg_ctx
);
1342 /* Paranoia check */
1344 for (i
=0; i
<lck
->data
->num_share_modes
; i
++) {
1345 struct share_mode_entry
*e
= &lck
->data
->share_modes
[i
];
1347 if (is_deferred_open_entry(e
) &&
1348 procid_equal(&self
, &e
->pid
) &&
1349 (e
->op_mid
== req
->mid
)) {
1350 DEBUG(0, ("Trying to defer an already deferred "
1351 "request: mid=%llu, exiting\n",
1352 (unsigned long long)req
->mid
));
1353 exit_server("attempt to defer a deferred request");
1357 /* End paranoia check */
1359 DEBUG(10,("defer_open_sharing_error: time [%u.%06u] adding deferred "
1360 "open entry for mid %llu\n",
1361 (unsigned int)request_time
.tv_sec
,
1362 (unsigned int)request_time
.tv_usec
,
1363 (unsigned long long)req
->mid
));
1365 if (!push_deferred_open_message_smb(req
, request_time
, timeout
,
1366 state
->id
, (char *)state
, sizeof(*state
))) {
1367 exit_server("push_deferred_open_message_smb failed");
1369 add_deferred_open(lck
, req
->mid
, request_time
, self
, state
->id
);
1373 /****************************************************************************
1374 On overwrite open ensure that the attributes match.
1375 ****************************************************************************/
1377 bool open_match_attributes(connection_struct
*conn
,
1378 uint32 old_dos_attr
,
1379 uint32 new_dos_attr
,
1380 mode_t existing_unx_mode
,
1381 mode_t new_unx_mode
,
1382 mode_t
*returned_unx_mode
)
1384 uint32 noarch_old_dos_attr
, noarch_new_dos_attr
;
1386 noarch_old_dos_attr
= (old_dos_attr
& ~FILE_ATTRIBUTE_ARCHIVE
);
1387 noarch_new_dos_attr
= (new_dos_attr
& ~FILE_ATTRIBUTE_ARCHIVE
);
1389 if((noarch_old_dos_attr
== 0 && noarch_new_dos_attr
!= 0) ||
1390 (noarch_old_dos_attr
!= 0 && ((noarch_old_dos_attr
& noarch_new_dos_attr
) == noarch_old_dos_attr
))) {
1391 *returned_unx_mode
= new_unx_mode
;
1393 *returned_unx_mode
= (mode_t
)0;
1396 DEBUG(10,("open_match_attributes: old_dos_attr = 0x%x, "
1397 "existing_unx_mode = 0%o, new_dos_attr = 0x%x "
1398 "returned_unx_mode = 0%o\n",
1399 (unsigned int)old_dos_attr
,
1400 (unsigned int)existing_unx_mode
,
1401 (unsigned int)new_dos_attr
,
1402 (unsigned int)*returned_unx_mode
));
1404 /* If we're mapping SYSTEM and HIDDEN ensure they match. */
1405 if (lp_map_system(SNUM(conn
)) || lp_store_dos_attributes(SNUM(conn
))) {
1406 if ((old_dos_attr
& FILE_ATTRIBUTE_SYSTEM
) &&
1407 !(new_dos_attr
& FILE_ATTRIBUTE_SYSTEM
)) {
1411 if (lp_map_hidden(SNUM(conn
)) || lp_store_dos_attributes(SNUM(conn
))) {
1412 if ((old_dos_attr
& FILE_ATTRIBUTE_HIDDEN
) &&
1413 !(new_dos_attr
& FILE_ATTRIBUTE_HIDDEN
)) {
1420 /****************************************************************************
1421 Special FCB or DOS processing in the case of a sharing violation.
1422 Try and find a duplicated file handle.
1423 ****************************************************************************/
1425 NTSTATUS
fcb_or_dos_open(struct smb_request
*req
,
1426 connection_struct
*conn
,
1427 files_struct
*fsp_to_dup_into
,
1428 const struct smb_filename
*smb_fname
,
1433 uint32 share_access
,
1434 uint32 create_options
)
1438 DEBUG(5,("fcb_or_dos_open: attempting old open semantics for "
1439 "file %s.\n", smb_fname_str_dbg(smb_fname
)));
1441 for(fsp
= file_find_di_first(conn
->sconn
, id
); fsp
;
1442 fsp
= file_find_di_next(fsp
)) {
1444 DEBUG(10,("fcb_or_dos_open: checking file %s, fd = %d, "
1445 "vuid = %u, file_pid = %u, private_options = 0x%x "
1446 "access_mask = 0x%x\n", fsp_str_dbg(fsp
),
1447 fsp
->fh
->fd
, (unsigned int)fsp
->vuid
,
1448 (unsigned int)fsp
->file_pid
,
1449 (unsigned int)fsp
->fh
->private_options
,
1450 (unsigned int)fsp
->access_mask
));
1452 if (fsp
->fh
->fd
!= -1 &&
1453 fsp
->vuid
== vuid
&&
1454 fsp
->file_pid
== file_pid
&&
1455 (fsp
->fh
->private_options
& (NTCREATEX_OPTIONS_PRIVATE_DENY_DOS
|
1456 NTCREATEX_OPTIONS_PRIVATE_DENY_FCB
)) &&
1457 (fsp
->access_mask
& FILE_WRITE_DATA
) &&
1458 strequal(fsp
->fsp_name
->base_name
, smb_fname
->base_name
) &&
1459 strequal(fsp
->fsp_name
->stream_name
,
1460 smb_fname
->stream_name
)) {
1461 DEBUG(10,("fcb_or_dos_open: file match\n"));
1467 return NT_STATUS_NOT_FOUND
;
1470 /* quite an insane set of semantics ... */
1471 if (is_executable(smb_fname
->base_name
) &&
1472 (fsp
->fh
->private_options
& NTCREATEX_OPTIONS_PRIVATE_DENY_DOS
)) {
1473 DEBUG(10,("fcb_or_dos_open: file fail due to is_executable.\n"));
1474 return NT_STATUS_INVALID_PARAMETER
;
1477 /* We need to duplicate this fsp. */
1478 return dup_file_fsp(req
, fsp
, access_mask
, share_access
,
1479 create_options
, fsp_to_dup_into
);
1482 static void schedule_defer_open(struct share_mode_lock
*lck
,
1483 struct timeval request_time
,
1484 struct smb_request
*req
)
1486 struct deferred_open_record state
;
1488 /* This is a relative time, added to the absolute
1489 request_time value to get the absolute timeout time.
1490 Note that if this is the second or greater time we enter
1491 this codepath for this particular request mid then
1492 request_time is left as the absolute time of the *first*
1493 time this request mid was processed. This is what allows
1494 the request to eventually time out. */
1496 struct timeval timeout
;
1498 /* Normally the smbd we asked should respond within
1499 * OPLOCK_BREAK_TIMEOUT seconds regardless of whether
1500 * the client did, give twice the timeout as a safety
1501 * measure here in case the other smbd is stuck
1502 * somewhere else. */
1504 timeout
= timeval_set(OPLOCK_BREAK_TIMEOUT
*2, 0);
1506 /* Nothing actually uses state.delayed_for_oplocks
1507 but it's handy to differentiate in debug messages
1508 between a 30 second delay due to oplock break, and
1509 a 1 second delay for share mode conflicts. */
1511 state
.delayed_for_oplocks
= True
;
1512 state
.id
= lck
->data
->id
;
1514 if (!request_timed_out(request_time
, timeout
)) {
1515 defer_open(lck
, request_time
, timeout
, req
, &state
);
1519 /****************************************************************************
1520 Work out what access_mask to use from what the client sent us.
1521 ****************************************************************************/
1523 static NTSTATUS
smbd_calculate_maximum_allowed_access(
1524 connection_struct
*conn
,
1525 const struct smb_filename
*smb_fname
,
1526 uint32_t *p_access_mask
)
1528 struct security_descriptor
*sd
;
1529 uint32_t access_granted
;
1532 if (get_current_uid(conn
) == (uid_t
)0) {
1533 *p_access_mask
|= FILE_GENERIC_ALL
;
1534 return NT_STATUS_OK
;
1537 status
= SMB_VFS_GET_NT_ACL(conn
, smb_fname
->base_name
,
1542 if (NT_STATUS_EQUAL(status
, NT_STATUS_OBJECT_NAME_NOT_FOUND
)) {
1544 * File did not exist
1546 *p_access_mask
= FILE_GENERIC_ALL
;
1547 return NT_STATUS_OK
;
1549 if (!NT_STATUS_IS_OK(status
)) {
1550 DEBUG(10,("smbd_calculate_access_mask: "
1551 "Could not get acl on file %s: %s\n",
1552 smb_fname_str_dbg(smb_fname
),
1553 nt_errstr(status
)));
1554 return NT_STATUS_ACCESS_DENIED
;
1558 * Never test FILE_READ_ATTRIBUTES. se_access_check()
1559 * also takes care of owner WRITE_DAC and READ_CONTROL.
1561 status
= se_access_check(sd
,
1562 get_current_nttok(conn
),
1563 (*p_access_mask
& ~FILE_READ_ATTRIBUTES
),
1568 if (!NT_STATUS_IS_OK(status
)) {
1569 DEBUG(10, ("smbd_calculate_access_mask: "
1570 "Access denied on file %s: "
1571 "when calculating maximum access\n",
1572 smb_fname_str_dbg(smb_fname
)));
1573 return NT_STATUS_ACCESS_DENIED
;
1575 *p_access_mask
= (access_granted
| FILE_READ_ATTRIBUTES
);
1576 return NT_STATUS_OK
;
1579 NTSTATUS
smbd_calculate_access_mask(connection_struct
*conn
,
1580 const struct smb_filename
*smb_fname
,
1581 uint32_t access_mask
,
1582 uint32_t *access_mask_out
)
1585 uint32_t orig_access_mask
= access_mask
;
1586 uint32_t rejected_share_access
;
1589 * Convert GENERIC bits to specific bits.
1592 se_map_generic(&access_mask
, &file_generic_mapping
);
1594 /* Calculate MAXIMUM_ALLOWED_ACCESS if requested. */
1595 if (access_mask
& MAXIMUM_ALLOWED_ACCESS
) {
1597 status
= smbd_calculate_maximum_allowed_access(
1598 conn
, smb_fname
, &access_mask
);
1600 if (!NT_STATUS_IS_OK(status
)) {
1604 access_mask
&= conn
->share_access
;
1607 rejected_share_access
= access_mask
& ~(conn
->share_access
);
1609 if (rejected_share_access
) {
1610 DEBUG(10, ("smbd_calculate_access_mask: Access denied on "
1611 "file %s: rejected by share access mask[0x%08X] "
1612 "orig[0x%08X] mapped[0x%08X] reject[0x%08X]\n",
1613 smb_fname_str_dbg(smb_fname
),
1615 orig_access_mask
, access_mask
,
1616 rejected_share_access
));
1617 return NT_STATUS_ACCESS_DENIED
;
1620 *access_mask_out
= access_mask
;
1621 return NT_STATUS_OK
;
1624 /****************************************************************************
1625 Remove the deferred open entry under lock.
1626 ****************************************************************************/
1628 void remove_deferred_open_entry(struct file_id id
, uint64_t mid
,
1629 struct server_id pid
)
1631 struct share_mode_lock
*lck
= get_existing_share_mode_lock(
1634 DEBUG(0, ("could not get share mode lock\n"));
1637 del_deferred_open_entry(lck
, mid
, pid
);
1641 /****************************************************************************
1642 Open a file with a share mode. Passed in an already created files_struct *.
1643 ****************************************************************************/
1645 static NTSTATUS
open_file_ntcreate(connection_struct
*conn
,
1646 struct smb_request
*req
,
1647 uint32 access_mask
, /* access bits (FILE_READ_DATA etc.) */
1648 uint32 share_access
, /* share constants (FILE_SHARE_READ etc) */
1649 uint32 create_disposition
, /* FILE_OPEN_IF etc. */
1650 uint32 create_options
, /* options such as delete on close. */
1651 uint32 new_dos_attributes
, /* attributes used for new file. */
1652 int oplock_request
, /* internal Samba oplock codes. */
1653 /* Information (FILE_EXISTS etc.) */
1654 uint32_t private_flags
, /* Samba specific flags. */
1658 struct smb_filename
*smb_fname
= fsp
->fsp_name
;
1661 bool file_existed
= VALID_STAT(smb_fname
->st
);
1662 bool def_acl
= False
;
1663 bool posix_open
= False
;
1664 bool new_file_created
= False
;
1665 bool clear_ads
= false;
1666 NTSTATUS fsp_open
= NT_STATUS_ACCESS_DENIED
;
1667 mode_t new_unx_mode
= (mode_t
)0;
1668 mode_t unx_mode
= (mode_t
)0;
1670 uint32 existing_dos_attributes
= 0;
1671 struct timeval request_time
= timeval_zero();
1672 struct share_mode_lock
*lck
= NULL
;
1673 uint32 open_access_mask
= access_mask
;
1677 if (conn
->printer
) {
1679 * Printers are handled completely differently.
1680 * Most of the passed parameters are ignored.
1684 *pinfo
= FILE_WAS_CREATED
;
1687 DEBUG(10, ("open_file_ntcreate: printer open fname=%s\n",
1688 smb_fname_str_dbg(smb_fname
)));
1691 DEBUG(0,("open_file_ntcreate: printer open without "
1692 "an SMB request!\n"));
1693 return NT_STATUS_INTERNAL_ERROR
;
1696 return print_spool_open(fsp
, smb_fname
->base_name
,
1700 if (!parent_dirname(talloc_tos(), smb_fname
->base_name
, &parent_dir
,
1702 return NT_STATUS_NO_MEMORY
;
1705 if (new_dos_attributes
& FILE_FLAG_POSIX_SEMANTICS
) {
1707 unx_mode
= (mode_t
)(new_dos_attributes
& ~FILE_FLAG_POSIX_SEMANTICS
);
1708 new_dos_attributes
= 0;
1710 /* Windows allows a new file to be created and
1711 silently removes a FILE_ATTRIBUTE_DIRECTORY
1712 sent by the client. Do the same. */
1714 new_dos_attributes
&= ~FILE_ATTRIBUTE_DIRECTORY
;
1716 /* We add FILE_ATTRIBUTE_ARCHIVE to this as this mode is only used if the file is
1718 unx_mode
= unix_mode(conn
, new_dos_attributes
| FILE_ATTRIBUTE_ARCHIVE
,
1719 smb_fname
, parent_dir
);
1722 DEBUG(10, ("open_file_ntcreate: fname=%s, dos_attrs=0x%x "
1723 "access_mask=0x%x share_access=0x%x "
1724 "create_disposition = 0x%x create_options=0x%x "
1725 "unix mode=0%o oplock_request=%d private_flags = 0x%x\n",
1726 smb_fname_str_dbg(smb_fname
), new_dos_attributes
,
1727 access_mask
, share_access
, create_disposition
,
1728 create_options
, (unsigned int)unx_mode
, oplock_request
,
1729 (unsigned int)private_flags
));
1731 if ((req
== NULL
) && ((oplock_request
& INTERNAL_OPEN_ONLY
) == 0)) {
1732 DEBUG(0, ("No smb request but not an internal only open!\n"));
1733 return NT_STATUS_INTERNAL_ERROR
;
1737 * Only non-internal opens can be deferred at all
1742 if (get_deferred_open_message_state(req
,
1746 struct deferred_open_record
*state
= (struct deferred_open_record
*)ptr
;
1747 /* Remember the absolute time of the original
1748 request with this mid. We'll use it later to
1749 see if this has timed out. */
1751 /* Remove the deferred open entry under lock. */
1752 remove_deferred_open_entry(
1753 state
->id
, req
->mid
,
1754 messaging_server_id(req
->sconn
->msg_ctx
));
1756 /* Ensure we don't reprocess this message. */
1757 remove_deferred_open_message_smb(req
->sconn
, req
->mid
);
1762 new_dos_attributes
&= SAMBA_ATTRIBUTES_MASK
;
1764 existing_dos_attributes
= dos_mode(conn
, smb_fname
);
1768 /* ignore any oplock requests if oplocks are disabled */
1769 if (!lp_oplocks(SNUM(conn
)) ||
1770 IS_VETO_OPLOCK_PATH(conn
, smb_fname
->base_name
)) {
1771 /* Mask off everything except the private Samba bits. */
1772 oplock_request
&= SAMBA_PRIVATE_OPLOCK_MASK
;
1775 /* this is for OS/2 long file names - say we don't support them */
1776 if (!lp_posix_pathnames() && strstr(smb_fname
->base_name
,".+,;=[].")) {
1777 /* OS/2 Workplace shell fix may be main code stream in a later
1779 DEBUG(5,("open_file_ntcreate: OS/2 long filenames are not "
1781 if (use_nt_status()) {
1782 return NT_STATUS_OBJECT_NAME_NOT_FOUND
;
1784 return NT_STATUS_DOS(ERRDOS
, ERRcannotopen
);
1787 switch( create_disposition
) {
1789 * Currently we're using FILE_SUPERSEDE as the same as
1790 * FILE_OVERWRITE_IF but they really are
1791 * different. FILE_SUPERSEDE deletes an existing file
1792 * (requiring delete access) then recreates it.
1794 case FILE_SUPERSEDE
:
1795 /* If file exists replace/overwrite. If file doesn't
1797 flags2
|= (O_CREAT
| O_TRUNC
);
1801 case FILE_OVERWRITE_IF
:
1802 /* If file exists replace/overwrite. If file doesn't
1804 flags2
|= (O_CREAT
| O_TRUNC
);
1809 /* If file exists open. If file doesn't exist error. */
1810 if (!file_existed
) {
1811 DEBUG(5,("open_file_ntcreate: FILE_OPEN "
1812 "requested for file %s and file "
1814 smb_fname_str_dbg(smb_fname
)));
1816 return NT_STATUS_OBJECT_NAME_NOT_FOUND
;
1820 case FILE_OVERWRITE
:
1821 /* If file exists overwrite. If file doesn't exist
1823 if (!file_existed
) {
1824 DEBUG(5,("open_file_ntcreate: FILE_OVERWRITE "
1825 "requested for file %s and file "
1827 smb_fname_str_dbg(smb_fname
) ));
1829 return NT_STATUS_OBJECT_NAME_NOT_FOUND
;
1836 /* If file exists error. If file doesn't exist
1839 DEBUG(5,("open_file_ntcreate: FILE_CREATE "
1840 "requested for file %s and file "
1841 "already exists.\n",
1842 smb_fname_str_dbg(smb_fname
)));
1843 if (S_ISDIR(smb_fname
->st
.st_ex_mode
)) {
1848 return map_nt_error_from_unix(errno
);
1850 flags2
|= (O_CREAT
|O_EXCL
);
1854 /* If file exists open. If file doesn't exist
1860 return NT_STATUS_INVALID_PARAMETER
;
1863 /* We only care about matching attributes on file exists and
1866 if (!posix_open
&& file_existed
&& ((create_disposition
== FILE_OVERWRITE
) ||
1867 (create_disposition
== FILE_OVERWRITE_IF
))) {
1868 if (!open_match_attributes(conn
, existing_dos_attributes
,
1870 smb_fname
->st
.st_ex_mode
,
1871 unx_mode
, &new_unx_mode
)) {
1872 DEBUG(5,("open_file_ntcreate: attributes missmatch "
1873 "for file %s (%x %x) (0%o, 0%o)\n",
1874 smb_fname_str_dbg(smb_fname
),
1875 existing_dos_attributes
,
1877 (unsigned int)smb_fname
->st
.st_ex_mode
,
1878 (unsigned int)unx_mode
));
1880 return NT_STATUS_ACCESS_DENIED
;
1884 status
= smbd_calculate_access_mask(conn
, smb_fname
,
1887 if (!NT_STATUS_IS_OK(status
)) {
1888 DEBUG(10, ("open_file_ntcreate: smbd_calculate_access_mask "
1889 "on file %s returned %s\n",
1890 smb_fname_str_dbg(smb_fname
), nt_errstr(status
)));
1894 open_access_mask
= access_mask
;
1896 if ((flags2
& O_TRUNC
) || (oplock_request
& FORCE_OPLOCK_BREAK_TO_NONE
)) {
1897 open_access_mask
|= FILE_WRITE_DATA
; /* This will cause oplock breaks. */
1900 DEBUG(10, ("open_file_ntcreate: fname=%s, after mapping "
1901 "access_mask=0x%x\n", smb_fname_str_dbg(smb_fname
),
1905 * Note that we ignore the append flag as append does not
1906 * mean the same thing under DOS and Unix.
1909 if ((access_mask
& (FILE_WRITE_DATA
| FILE_APPEND_DATA
)) ||
1910 (oplock_request
& FORCE_OPLOCK_BREAK_TO_NONE
)) {
1911 /* DENY_DOS opens are always underlying read-write on the
1912 file handle, no matter what the requested access mask
1914 if ((private_flags
& NTCREATEX_OPTIONS_PRIVATE_DENY_DOS
) ||
1915 access_mask
& (FILE_READ_ATTRIBUTES
|FILE_READ_DATA
|FILE_READ_EA
|FILE_EXECUTE
)) {
1925 * Currently we only look at FILE_WRITE_THROUGH for create options.
1929 if ((create_options
& FILE_WRITE_THROUGH
) && lp_strict_sync(SNUM(conn
))) {
1934 if (posix_open
&& (access_mask
& FILE_APPEND_DATA
)) {
1938 if (!posix_open
&& !CAN_WRITE(conn
)) {
1940 * We should really return a permission denied error if either
1941 * O_CREAT or O_TRUNC are set, but for compatibility with
1942 * older versions of Samba we just AND them out.
1944 flags2
&= ~(O_CREAT
|O_TRUNC
);
1948 * Ensure we can't write on a read-only share or file.
1951 if (flags
!= O_RDONLY
&& file_existed
&&
1952 (!CAN_WRITE(conn
) || IS_DOS_READONLY(existing_dos_attributes
))) {
1953 DEBUG(5,("open_file_ntcreate: write access requested for "
1954 "file %s on read only %s\n",
1955 smb_fname_str_dbg(smb_fname
),
1956 !CAN_WRITE(conn
) ? "share" : "file" ));
1958 return NT_STATUS_ACCESS_DENIED
;
1961 fsp
->file_id
= vfs_file_id_from_sbuf(conn
, &smb_fname
->st
);
1962 fsp
->share_access
= share_access
;
1963 fsp
->fh
->private_options
= private_flags
;
1964 fsp
->access_mask
= open_access_mask
; /* We change this to the
1965 * requested access_mask after
1966 * the open is done. */
1967 fsp
->posix_open
= posix_open
;
1969 /* Ensure no SAMBA_PRIVATE bits can be set. */
1970 fsp
->oplock_type
= (oplock_request
& ~SAMBA_PRIVATE_OPLOCK_MASK
);
1972 if (timeval_is_zero(&request_time
)) {
1973 request_time
= fsp
->open_time
;
1977 struct share_mode_entry
*batch_entry
= NULL
;
1978 struct share_mode_entry
*exclusive_entry
= NULL
;
1979 bool got_level2_oplock
= false;
1980 bool got_a_none_oplock
= false;
1983 struct timespec old_write_time
= smb_fname
->st
.st_ex_mtime
;
1984 id
= vfs_file_id_from_sbuf(conn
, &smb_fname
->st
);
1986 lck
= get_share_mode_lock(talloc_tos(), id
,
1988 smb_fname
, &old_write_time
);
1990 DEBUG(0, ("Could not get share mode lock\n"));
1991 return NT_STATUS_SHARING_VIOLATION
;
1994 /* Get the types we need to examine. */
1995 find_oplock_types(fsp
,
2001 &got_a_none_oplock
);
2003 /* First pass - send break only on batch oplocks. */
2004 if ((req
!= NULL
) &&
2005 delay_for_batch_oplocks(fsp
,
2009 schedule_defer_open(lck
, request_time
, req
);
2011 return NT_STATUS_SHARING_VIOLATION
;
2014 /* Use the client requested access mask here, not the one we
2016 status
= open_mode_check(conn
, lck
, fsp
->name_hash
,
2017 access_mask
, share_access
,
2018 create_options
, &file_existed
);
2020 if (NT_STATUS_IS_OK(status
)) {
2021 /* We might be going to allow this open. Check oplock
2023 /* Second pass - send break for both batch or
2024 * exclusive oplocks. */
2025 if ((req
!= NULL
) &&
2026 delay_for_exclusive_oplocks(
2031 schedule_defer_open(lck
, request_time
, req
);
2033 return NT_STATUS_SHARING_VIOLATION
;
2037 if (NT_STATUS_EQUAL(status
, NT_STATUS_DELETE_PENDING
)) {
2038 /* DELETE_PENDING is not deferred for a second */
2043 grant_fsp_oplock_type(fsp
,
2048 if (!NT_STATUS_IS_OK(status
)) {
2049 uint32 can_access_mask
;
2050 bool can_access
= True
;
2052 SMB_ASSERT(NT_STATUS_EQUAL(status
, NT_STATUS_SHARING_VIOLATION
));
2054 /* Check if this can be done with the deny_dos and fcb
2057 (NTCREATEX_OPTIONS_PRIVATE_DENY_DOS
|
2058 NTCREATEX_OPTIONS_PRIVATE_DENY_FCB
)) {
2060 DEBUG(0, ("DOS open without an SMB "
2063 return NT_STATUS_INTERNAL_ERROR
;
2066 /* Use the client requested access mask here,
2067 * not the one we open with. */
2068 status
= fcb_or_dos_open(req
,
2079 if (NT_STATUS_IS_OK(status
)) {
2082 *pinfo
= FILE_WAS_OPENED
;
2084 return NT_STATUS_OK
;
2089 * This next line is a subtlety we need for
2090 * MS-Access. If a file open will fail due to share
2091 * permissions and also for security (access) reasons,
2092 * we need to return the access failed error, not the
2093 * share error. We can't open the file due to kernel
2094 * oplock deadlock (it's possible we failed above on
2095 * the open_mode_check()) so use a userspace check.
2098 if (flags
& O_RDWR
) {
2099 can_access_mask
= FILE_READ_DATA
|FILE_WRITE_DATA
;
2100 } else if (flags
& O_WRONLY
) {
2101 can_access_mask
= FILE_WRITE_DATA
;
2103 can_access_mask
= FILE_READ_DATA
;
2106 if (((can_access_mask
& FILE_WRITE_DATA
) &&
2107 !CAN_WRITE(conn
)) ||
2108 !NT_STATUS_IS_OK(smbd_check_access_rights(conn
,
2109 smb_fname
, can_access_mask
))) {
2114 * If we're returning a share violation, ensure we
2115 * cope with the braindead 1 second delay.
2118 if (!(oplock_request
& INTERNAL_OPEN_ONLY
) &&
2119 lp_defer_sharing_violations()) {
2120 struct timeval timeout
;
2121 struct deferred_open_record state
;
2124 /* this is a hack to speed up torture tests
2126 timeout_usecs
= lp_parm_int(SNUM(conn
),
2127 "smbd","sharedelay",
2128 SHARING_VIOLATION_USEC_WAIT
);
2130 /* This is a relative time, added to the absolute
2131 request_time value to get the absolute timeout time.
2132 Note that if this is the second or greater time we enter
2133 this codepath for this particular request mid then
2134 request_time is left as the absolute time of the *first*
2135 time this request mid was processed. This is what allows
2136 the request to eventually time out. */
2138 timeout
= timeval_set(0, timeout_usecs
);
2140 /* Nothing actually uses state.delayed_for_oplocks
2141 but it's handy to differentiate in debug messages
2142 between a 30 second delay due to oplock break, and
2143 a 1 second delay for share mode conflicts. */
2145 state
.delayed_for_oplocks
= False
;
2149 && !request_timed_out(request_time
,
2151 defer_open(lck
, request_time
, timeout
,
2159 * We have detected a sharing violation here
2160 * so return the correct error code
2162 status
= NT_STATUS_SHARING_VIOLATION
;
2164 status
= NT_STATUS_ACCESS_DENIED
;
2170 * We exit this block with the share entry *locked*.....
2174 SMB_ASSERT(!file_existed
|| (lck
!= NULL
));
2177 * Ensure we pay attention to default ACLs on directories if required.
2180 if ((flags2
& O_CREAT
) && lp_inherit_acls(SNUM(conn
)) &&
2181 (def_acl
= directory_has_default_acl(conn
, parent_dir
))) {
2182 unx_mode
= (0777 & lp_create_mask(SNUM(conn
)));
2185 DEBUG(4,("calling open_file with flags=0x%X flags2=0x%X mode=0%o, "
2186 "access_mask = 0x%x, open_access_mask = 0x%x\n",
2187 (unsigned int)flags
, (unsigned int)flags2
,
2188 (unsigned int)unx_mode
, (unsigned int)access_mask
,
2189 (unsigned int)open_access_mask
));
2192 * open_file strips any O_TRUNC flags itself.
2195 fsp_open
= open_file(fsp
, conn
, req
, parent_dir
,
2196 flags
|flags2
, unx_mode
, access_mask
,
2199 if (!NT_STATUS_IS_OK(fsp_open
)) {
2204 if (!file_existed
) {
2205 struct share_mode_entry
*batch_entry
= NULL
;
2206 struct share_mode_entry
*exclusive_entry
= NULL
;
2207 bool got_level2_oplock
= false;
2208 bool got_a_none_oplock
= false;
2209 struct timespec old_write_time
= smb_fname
->st
.st_ex_mtime
;
2212 * Deal with the race condition where two smbd's detect the
2213 * file doesn't exist and do the create at the same time. One
2214 * of them will win and set a share mode, the other (ie. this
2215 * one) should check if the requested share mode for this
2216 * create is allowed.
2220 * Now the file exists and fsp is successfully opened,
2221 * fsp->dev and fsp->inode are valid and should replace the
2222 * dev=0,inode=0 from a non existent file. Spotted by
2223 * Nadav Danieli <nadavd@exanet.com>. JRA.
2228 lck
= get_share_mode_lock(talloc_tos(), id
,
2230 smb_fname
, &old_write_time
);
2233 DEBUG(0, ("open_file_ntcreate: Could not get share "
2234 "mode lock for %s\n",
2235 smb_fname_str_dbg(smb_fname
)));
2237 return NT_STATUS_SHARING_VIOLATION
;
2240 /* Get the types we need to examine. */
2241 find_oplock_types(fsp
,
2247 &got_a_none_oplock
);
2249 /* First pass - send break only on batch oplocks. */
2250 if ((req
!= NULL
) &&
2251 delay_for_batch_oplocks(fsp
,
2255 schedule_defer_open(lck
, request_time
, req
);
2258 return NT_STATUS_SHARING_VIOLATION
;
2261 status
= open_mode_check(conn
, lck
, fsp
->name_hash
,
2262 access_mask
, share_access
,
2263 create_options
, &file_existed
);
2265 if (NT_STATUS_IS_OK(status
)) {
2266 /* We might be going to allow this open. Check oplock
2268 /* Second pass - send break for both batch or
2269 * exclusive oplocks. */
2270 if ((req
!= NULL
) &&
2271 delay_for_exclusive_oplocks(
2276 schedule_defer_open(lck
, request_time
, req
);
2279 return NT_STATUS_SHARING_VIOLATION
;
2283 if (!NT_STATUS_IS_OK(status
)) {
2284 struct deferred_open_record state
;
2286 state
.delayed_for_oplocks
= False
;
2289 /* Do it all over again immediately. In the second
2290 * round we will find that the file existed and handle
2291 * the DELETE_PENDING and FCB cases correctly. No need
2292 * to duplicate the code here. Essentially this is a
2293 * "goto top of this function", but don't tell
2297 defer_open(lck
, request_time
, timeval_zero(),
2305 grant_fsp_oplock_type(fsp
,
2311 * We exit this block with the share entry *locked*.....
2316 SMB_ASSERT(lck
!= NULL
);
2318 /* Delete streams if create_disposition requires it */
2319 if (file_existed
&& clear_ads
&&
2320 !is_ntfs_stream_smb_fname(smb_fname
)) {
2321 status
= delete_all_streams(conn
, smb_fname
->base_name
);
2322 if (!NT_STATUS_IS_OK(status
)) {
2329 /* note that we ignore failure for the following. It is
2330 basically a hack for NFS, and NFS will never set one of
2331 these only read them. Nobody but Samba can ever set a deny
2332 mode and we have already checked our more authoritative
2333 locking database for permission to set this deny mode. If
2334 the kernel refuses the operations then the kernel is wrong.
2335 note that GPFS supports it as well - jmcd */
2337 if (fsp
->fh
->fd
!= -1) {
2339 ret_flock
= SMB_VFS_KERNEL_FLOCK(fsp
, share_access
, access_mask
);
2340 if(ret_flock
== -1 ){
2345 return NT_STATUS_SHARING_VIOLATION
;
2350 * At this point onwards, we can guarentee that the share entry
2351 * is locked, whether we created the file or not, and that the
2352 * deny mode is compatible with all current opens.
2356 * If requested, truncate the file.
2359 if (file_existed
&& (flags2
&O_TRUNC
)) {
2361 * We are modifing the file after open - update the stat
2364 if ((SMB_VFS_FTRUNCATE(fsp
, 0) == -1) ||
2365 (SMB_VFS_FSTAT(fsp
, &smb_fname
->st
)==-1)) {
2366 status
= map_nt_error_from_unix(errno
);
2374 * According to Samba4, SEC_FILE_READ_ATTRIBUTE is always granted,
2375 * but we don't have to store this - just ignore it on access check.
2377 if (conn
->sconn
->using_smb2
) {
2379 * SMB2 doesn't return it (according to Microsoft tests).
2380 * Test Case: TestSuite_ScenarioNo009GrantedAccessTestS0
2381 * File created with access = 0x7 (Read, Write, Delete)
2382 * Query Info on file returns 0x87 (Read, Write, Delete, Read Attributes)
2384 fsp
->access_mask
= access_mask
;
2386 /* But SMB1 does. */
2387 fsp
->access_mask
= access_mask
| FILE_READ_ATTRIBUTES
;
2391 /* stat opens on existing files don't get oplocks. */
2392 if (is_stat_open(open_access_mask
)) {
2393 fsp
->oplock_type
= NO_OPLOCK
;
2396 if (flags2
& O_TRUNC
) {
2397 info
= FILE_WAS_OVERWRITTEN
;
2399 info
= FILE_WAS_OPENED
;
2402 info
= FILE_WAS_CREATED
;
2410 * Setup the oplock info in both the shared memory and
2414 if (!set_file_oplock(fsp
, fsp
->oplock_type
)) {
2416 * Could not get the kernel oplock or there are byte-range
2417 * locks on the file.
2419 fsp
->oplock_type
= NO_OPLOCK
;
2422 set_share_mode(lck
, fsp
, get_current_uid(conn
),
2426 /* Handle strange delete on close create semantics. */
2427 if (create_options
& FILE_DELETE_ON_CLOSE
) {
2429 status
= can_set_delete_on_close(fsp
, new_dos_attributes
);
2431 if (!NT_STATUS_IS_OK(status
)) {
2432 /* Remember to delete the mode we just added. */
2433 del_share_mode(lck
, fsp
);
2438 /* Note that here we set the *inital* delete on close flag,
2439 not the regular one. The magic gets handled in close. */
2440 fsp
->initial_delete_on_close
= True
;
2443 if (info
== FILE_WAS_OVERWRITTEN
2444 || info
== FILE_WAS_CREATED
2445 || info
== FILE_WAS_SUPERSEDED
) {
2446 new_file_created
= True
;
2449 if (new_file_created
) {
2450 /* Files should be initially set as archive */
2451 if (lp_map_archive(SNUM(conn
)) ||
2452 lp_store_dos_attributes(SNUM(conn
))) {
2454 if (file_set_dosmode(conn
, smb_fname
,
2455 new_dos_attributes
| FILE_ATTRIBUTE_ARCHIVE
,
2456 parent_dir
, true) == 0) {
2457 unx_mode
= smb_fname
->st
.st_ex_mode
;
2463 /* Determine sparse flag. */
2465 /* POSIX opens are sparse by default. */
2466 fsp
->is_sparse
= true;
2468 fsp
->is_sparse
= (file_existed
&&
2469 (existing_dos_attributes
& FILE_ATTRIBUTE_SPARSE
));
2473 * Take care of inherited ACLs on created files - if default ACL not
2477 if (!posix_open
&& !file_existed
&& !def_acl
) {
2479 int saved_errno
= errno
; /* We might get ENOSYS in the next
2482 if (SMB_VFS_FCHMOD_ACL(fsp
, unx_mode
) == -1 &&
2484 errno
= saved_errno
; /* Ignore ENOSYS */
2487 } else if (new_unx_mode
) {
2491 /* Attributes need changing. File already existed. */
2494 int saved_errno
= errno
; /* We might get ENOSYS in the
2496 ret
= SMB_VFS_FCHMOD_ACL(fsp
, new_unx_mode
);
2498 if (ret
== -1 && errno
== ENOSYS
) {
2499 errno
= saved_errno
; /* Ignore ENOSYS */
2501 DEBUG(5, ("open_file_ntcreate: reset "
2502 "attributes of file %s to 0%o\n",
2503 smb_fname_str_dbg(smb_fname
),
2504 (unsigned int)new_unx_mode
));
2505 ret
= 0; /* Don't do the fchmod below. */
2510 (SMB_VFS_FCHMOD(fsp
, new_unx_mode
) == -1))
2511 DEBUG(5, ("open_file_ntcreate: failed to reset "
2512 "attributes of file %s to 0%o\n",
2513 smb_fname_str_dbg(smb_fname
),
2514 (unsigned int)new_unx_mode
));
2517 /* If this is a successful open, we must remove any deferred open
2520 del_deferred_open_entry(lck
, req
->mid
,
2521 messaging_server_id(req
->sconn
->msg_ctx
));
2525 return NT_STATUS_OK
;
2529 /****************************************************************************
2530 Open a file for for write to ensure that we can fchmod it.
2531 ****************************************************************************/
2533 NTSTATUS
open_file_fchmod(connection_struct
*conn
,
2534 struct smb_filename
*smb_fname
,
2535 files_struct
**result
)
2537 if (!VALID_STAT(smb_fname
->st
)) {
2538 return NT_STATUS_INVALID_PARAMETER
;
2541 return SMB_VFS_CREATE_FILE(
2544 0, /* root_dir_fid */
2545 smb_fname
, /* fname */
2546 FILE_WRITE_DATA
, /* access_mask */
2547 (FILE_SHARE_READ
| FILE_SHARE_WRITE
| /* share_access */
2549 FILE_OPEN
, /* create_disposition*/
2550 0, /* create_options */
2551 0, /* file_attributes */
2552 INTERNAL_OPEN_ONLY
, /* oplock_request */
2553 0, /* allocation_size */
2554 0, /* private_flags */
2557 result
, /* result */
2561 static NTSTATUS
mkdir_internal(connection_struct
*conn
,
2562 struct smb_filename
*smb_dname
,
2563 uint32 file_attributes
)
2566 char *parent_dir
= NULL
;
2568 bool posix_open
= false;
2569 bool need_re_stat
= false;
2570 uint32_t access_mask
= SEC_DIR_ADD_SUBDIR
;
2572 if(access_mask
& ~(conn
->share_access
)) {
2573 DEBUG(5,("mkdir_internal: failing share access "
2574 "%s\n", lp_servicename(SNUM(conn
))));
2575 return NT_STATUS_ACCESS_DENIED
;
2578 if (!parent_dirname(talloc_tos(), smb_dname
->base_name
, &parent_dir
,
2580 return NT_STATUS_NO_MEMORY
;
2583 if (file_attributes
& FILE_FLAG_POSIX_SEMANTICS
) {
2585 mode
= (mode_t
)(file_attributes
& ~FILE_FLAG_POSIX_SEMANTICS
);
2587 mode
= unix_mode(conn
, FILE_ATTRIBUTE_DIRECTORY
, smb_dname
, parent_dir
);
2590 status
= check_parent_access(conn
,
2593 if(!NT_STATUS_IS_OK(status
)) {
2594 DEBUG(5,("mkdir_internal: check_parent_access "
2595 "on directory %s for path %s returned %s\n",
2597 smb_dname
->base_name
,
2598 nt_errstr(status
) ));
2602 if (SMB_VFS_MKDIR(conn
, smb_dname
->base_name
, mode
) != 0) {
2603 return map_nt_error_from_unix(errno
);
2606 /* Ensure we're checking for a symlink here.... */
2607 /* We don't want to get caught by a symlink racer. */
2609 if (SMB_VFS_LSTAT(conn
, smb_dname
) == -1) {
2610 DEBUG(2, ("Could not stat directory '%s' just created: %s\n",
2611 smb_fname_str_dbg(smb_dname
), strerror(errno
)));
2612 return map_nt_error_from_unix(errno
);
2615 if (!S_ISDIR(smb_dname
->st
.st_ex_mode
)) {
2616 DEBUG(0, ("Directory '%s' just created is not a directory !\n",
2617 smb_fname_str_dbg(smb_dname
)));
2618 return NT_STATUS_NOT_A_DIRECTORY
;
2621 if (lp_store_dos_attributes(SNUM(conn
))) {
2623 file_set_dosmode(conn
, smb_dname
,
2624 file_attributes
| FILE_ATTRIBUTE_DIRECTORY
,
2629 if (lp_inherit_perms(SNUM(conn
))) {
2630 inherit_access_posix_acl(conn
, parent_dir
,
2631 smb_dname
->base_name
, mode
);
2632 need_re_stat
= true;
2637 * Check if high bits should have been set,
2638 * then (if bits are missing): add them.
2639 * Consider bits automagically set by UNIX, i.e. SGID bit from parent
2642 if ((mode
& ~(S_IRWXU
|S_IRWXG
|S_IRWXO
)) &&
2643 (mode
& ~smb_dname
->st
.st_ex_mode
)) {
2644 SMB_VFS_CHMOD(conn
, smb_dname
->base_name
,
2645 (smb_dname
->st
.st_ex_mode
|
2646 (mode
& ~smb_dname
->st
.st_ex_mode
)));
2647 need_re_stat
= true;
2651 /* Change the owner if required. */
2652 if (lp_inherit_owner(SNUM(conn
))) {
2653 change_dir_owner_to_parent(conn
, parent_dir
,
2654 smb_dname
->base_name
,
2656 need_re_stat
= true;
2660 if (SMB_VFS_LSTAT(conn
, smb_dname
) == -1) {
2661 DEBUG(2, ("Could not stat directory '%s' just created: %s\n",
2662 smb_fname_str_dbg(smb_dname
), strerror(errno
)));
2663 return map_nt_error_from_unix(errno
);
2667 notify_fname(conn
, NOTIFY_ACTION_ADDED
, FILE_NOTIFY_CHANGE_DIR_NAME
,
2668 smb_dname
->base_name
);
2670 return NT_STATUS_OK
;
2673 /****************************************************************************
2674 Ensure we didn't get symlink raced on opening a directory.
2675 ****************************************************************************/
2677 bool check_same_stat(const SMB_STRUCT_STAT
*sbuf1
,
2678 const SMB_STRUCT_STAT
*sbuf2
)
2680 if (sbuf1
->st_ex_uid
!= sbuf2
->st_ex_uid
||
2681 sbuf1
->st_ex_gid
!= sbuf2
->st_ex_gid
||
2682 sbuf1
->st_ex_dev
!= sbuf2
->st_ex_dev
||
2683 sbuf1
->st_ex_ino
!= sbuf2
->st_ex_ino
) {
2689 /****************************************************************************
2690 Open a directory from an NT SMB call.
2691 ****************************************************************************/
2693 static NTSTATUS
open_directory(connection_struct
*conn
,
2694 struct smb_request
*req
,
2695 struct smb_filename
*smb_dname
,
2697 uint32 share_access
,
2698 uint32 create_disposition
,
2699 uint32 create_options
,
2700 uint32 file_attributes
,
2702 files_struct
**result
)
2704 files_struct
*fsp
= NULL
;
2705 bool dir_existed
= VALID_STAT(smb_dname
->st
) ? True
: False
;
2706 struct share_mode_lock
*lck
= NULL
;
2708 struct timespec mtimespec
;
2711 if (is_ntfs_stream_smb_fname(smb_dname
)) {
2712 DEBUG(2, ("open_directory: %s is a stream name!\n",
2713 smb_fname_str_dbg(smb_dname
)));
2714 return NT_STATUS_NOT_A_DIRECTORY
;
2717 if (!(file_attributes
& FILE_FLAG_POSIX_SEMANTICS
)) {
2718 /* Ensure we have a directory attribute. */
2719 file_attributes
|= FILE_ATTRIBUTE_DIRECTORY
;
2722 DEBUG(5,("open_directory: opening directory %s, access_mask = 0x%x, "
2723 "share_access = 0x%x create_options = 0x%x, "
2724 "create_disposition = 0x%x, file_attributes = 0x%x\n",
2725 smb_fname_str_dbg(smb_dname
),
2726 (unsigned int)access_mask
,
2727 (unsigned int)share_access
,
2728 (unsigned int)create_options
,
2729 (unsigned int)create_disposition
,
2730 (unsigned int)file_attributes
));
2732 status
= smbd_calculate_access_mask(conn
, smb_dname
,
2733 access_mask
, &access_mask
);
2734 if (!NT_STATUS_IS_OK(status
)) {
2735 DEBUG(10, ("open_directory: smbd_calculate_access_mask "
2736 "on file %s returned %s\n",
2737 smb_fname_str_dbg(smb_dname
),
2738 nt_errstr(status
)));
2742 if ((access_mask
& SEC_FLAG_SYSTEM_SECURITY
) &&
2743 !security_token_has_privilege(get_current_nttok(conn
),
2744 SEC_PRIV_SECURITY
)) {
2745 DEBUG(10, ("open_directory: open on %s "
2746 "failed - SEC_FLAG_SYSTEM_SECURITY denied.\n",
2747 smb_fname_str_dbg(smb_dname
)));
2748 return NT_STATUS_PRIVILEGE_NOT_HELD
;
2751 switch( create_disposition
) {
2755 return NT_STATUS_OBJECT_NAME_NOT_FOUND
;
2758 info
= FILE_WAS_OPENED
;
2763 /* If directory exists error. If directory doesn't
2767 status
= NT_STATUS_OBJECT_NAME_COLLISION
;
2768 DEBUG(2, ("open_directory: unable to create "
2769 "%s. Error was %s\n",
2770 smb_fname_str_dbg(smb_dname
),
2771 nt_errstr(status
)));
2775 status
= mkdir_internal(conn
, smb_dname
,
2778 if (!NT_STATUS_IS_OK(status
)) {
2779 DEBUG(2, ("open_directory: unable to create "
2780 "%s. Error was %s\n",
2781 smb_fname_str_dbg(smb_dname
),
2782 nt_errstr(status
)));
2786 info
= FILE_WAS_CREATED
;
2791 * If directory exists open. If directory doesn't
2796 status
= NT_STATUS_OK
;
2797 info
= FILE_WAS_OPENED
;
2799 status
= mkdir_internal(conn
, smb_dname
,
2802 if (NT_STATUS_IS_OK(status
)) {
2803 info
= FILE_WAS_CREATED
;
2805 /* Cope with create race. */
2806 if (!NT_STATUS_EQUAL(status
,
2807 NT_STATUS_OBJECT_NAME_COLLISION
)) {
2808 DEBUG(2, ("open_directory: unable to create "
2809 "%s. Error was %s\n",
2810 smb_fname_str_dbg(smb_dname
),
2811 nt_errstr(status
)));
2814 info
= FILE_WAS_OPENED
;
2820 case FILE_SUPERSEDE
:
2821 case FILE_OVERWRITE
:
2822 case FILE_OVERWRITE_IF
:
2824 DEBUG(5,("open_directory: invalid create_disposition "
2825 "0x%x for directory %s\n",
2826 (unsigned int)create_disposition
,
2827 smb_fname_str_dbg(smb_dname
)));
2828 return NT_STATUS_INVALID_PARAMETER
;
2831 if(!S_ISDIR(smb_dname
->st
.st_ex_mode
)) {
2832 DEBUG(5,("open_directory: %s is not a directory !\n",
2833 smb_fname_str_dbg(smb_dname
)));
2834 return NT_STATUS_NOT_A_DIRECTORY
;
2837 if (info
== FILE_WAS_OPENED
) {
2838 status
= smbd_check_access_rights(conn
, smb_dname
, access_mask
);
2839 if (!NT_STATUS_IS_OK(status
)) {
2840 DEBUG(10, ("open_directory: smbd_check_access_rights on "
2841 "file %s failed with %s\n",
2842 smb_fname_str_dbg(smb_dname
),
2843 nt_errstr(status
)));
2848 status
= file_new(req
, conn
, &fsp
);
2849 if(!NT_STATUS_IS_OK(status
)) {
2854 * Setup the files_struct for it.
2857 fsp
->file_id
= vfs_file_id_from_sbuf(conn
, &smb_dname
->st
);
2858 fsp
->vuid
= req
? req
->vuid
: UID_FIELD_INVALID
;
2859 fsp
->file_pid
= req
? req
->smbpid
: 0;
2860 fsp
->can_lock
= False
;
2861 fsp
->can_read
= False
;
2862 fsp
->can_write
= False
;
2864 fsp
->share_access
= share_access
;
2865 fsp
->fh
->private_options
= 0;
2867 * According to Samba4, SEC_FILE_READ_ATTRIBUTE is always granted,
2869 fsp
->access_mask
= access_mask
| FILE_READ_ATTRIBUTES
;
2870 fsp
->print_file
= NULL
;
2871 fsp
->modified
= False
;
2872 fsp
->oplock_type
= NO_OPLOCK
;
2873 fsp
->sent_oplock_break
= NO_BREAK_SENT
;
2874 fsp
->is_directory
= True
;
2875 fsp
->posix_open
= (file_attributes
& FILE_FLAG_POSIX_SEMANTICS
) ? True
: False
;
2876 status
= fsp_set_smb_fname(fsp
, smb_dname
);
2877 if (!NT_STATUS_IS_OK(status
)) {
2878 file_free(req
, fsp
);
2882 mtimespec
= smb_dname
->st
.st_ex_mtime
;
2885 status
= fd_open(conn
, fsp
, O_RDONLY
|O_DIRECTORY
, 0);
2887 /* POSIX allows us to open a directory with O_RDONLY. */
2888 status
= fd_open(conn
, fsp
, O_RDONLY
, 0);
2890 if (!NT_STATUS_IS_OK(status
)) {
2891 DEBUG(5, ("open_directory: Could not open fd for "
2893 smb_fname_str_dbg(smb_dname
),
2894 nt_errstr(status
)));
2895 file_free(req
, fsp
);
2899 status
= vfs_stat_fsp(fsp
);
2900 if (!NT_STATUS_IS_OK(status
)) {
2902 file_free(req
, fsp
);
2906 /* Ensure there was no race condition. */
2907 if (!check_same_stat(&smb_dname
->st
, &fsp
->fsp_name
->st
)) {
2908 DEBUG(5,("open_directory: stat struct differs for "
2910 smb_fname_str_dbg(smb_dname
)));
2912 file_free(req
, fsp
);
2913 return NT_STATUS_ACCESS_DENIED
;
2916 lck
= get_share_mode_lock(talloc_tos(), fsp
->file_id
,
2917 conn
->connectpath
, smb_dname
,
2921 DEBUG(0, ("open_directory: Could not get share mode lock for "
2922 "%s\n", smb_fname_str_dbg(smb_dname
)));
2924 file_free(req
, fsp
);
2925 return NT_STATUS_SHARING_VIOLATION
;
2928 status
= open_mode_check(conn
, lck
, fsp
->name_hash
,
2929 access_mask
, share_access
,
2930 create_options
, &dir_existed
);
2932 if (!NT_STATUS_IS_OK(status
)) {
2935 file_free(req
, fsp
);
2939 set_share_mode(lck
, fsp
, get_current_uid(conn
),
2940 req
? req
->mid
: 0, NO_OPLOCK
);
2942 /* For directories the delete on close bit at open time seems
2943 always to be honored on close... See test 19 in Samba4 BASE-DELETE. */
2944 if (create_options
& FILE_DELETE_ON_CLOSE
) {
2945 status
= can_set_delete_on_close(fsp
, 0);
2946 if (!NT_STATUS_IS_OK(status
) && !NT_STATUS_EQUAL(status
, NT_STATUS_DIRECTORY_NOT_EMPTY
)) {
2949 file_free(req
, fsp
);
2953 if (NT_STATUS_IS_OK(status
)) {
2954 /* Note that here we set the *inital* delete on close flag,
2955 not the regular one. The magic gets handled in close. */
2956 fsp
->initial_delete_on_close
= True
;
2967 return NT_STATUS_OK
;
2970 NTSTATUS
create_directory(connection_struct
*conn
, struct smb_request
*req
,
2971 struct smb_filename
*smb_dname
)
2976 status
= SMB_VFS_CREATE_FILE(
2979 0, /* root_dir_fid */
2980 smb_dname
, /* fname */
2981 FILE_READ_ATTRIBUTES
, /* access_mask */
2982 FILE_SHARE_NONE
, /* share_access */
2983 FILE_CREATE
, /* create_disposition*/
2984 FILE_DIRECTORY_FILE
, /* create_options */
2985 FILE_ATTRIBUTE_DIRECTORY
, /* file_attributes */
2986 0, /* oplock_request */
2987 0, /* allocation_size */
2988 0, /* private_flags */
2994 if (NT_STATUS_IS_OK(status
)) {
2995 close_file(req
, fsp
, NORMAL_CLOSE
);
3001 /****************************************************************************
3002 Receive notification that one of our open files has been renamed by another
3004 ****************************************************************************/
3006 void msg_file_was_renamed(struct messaging_context
*msg
,
3009 struct server_id server_id
,
3013 char *frm
= (char *)data
->data
;
3015 const char *sharepath
;
3016 const char *base_name
;
3017 const char *stream_name
;
3018 struct smb_filename
*smb_fname
= NULL
;
3019 size_t sp_len
, bn_len
;
3021 struct smbd_server_connection
*sconn
=
3022 talloc_get_type_abort(private_data
,
3023 struct smbd_server_connection
);
3025 if (data
->data
== NULL
3026 || data
->length
< MSG_FILE_RENAMED_MIN_SIZE
+ 2) {
3027 DEBUG(0, ("msg_file_was_renamed: Got invalid msg len %d\n",
3028 (int)data
->length
));
3032 /* Unpack the message. */
3033 pull_file_id_24(frm
, &id
);
3034 sharepath
= &frm
[24];
3035 sp_len
= strlen(sharepath
);
3036 base_name
= sharepath
+ sp_len
+ 1;
3037 bn_len
= strlen(base_name
);
3038 stream_name
= sharepath
+ sp_len
+ 1 + bn_len
+ 1;
3040 /* stream_name must always be NULL if there is no stream. */
3041 if (stream_name
[0] == '\0') {
3045 status
= create_synthetic_smb_fname(talloc_tos(), base_name
,
3046 stream_name
, NULL
, &smb_fname
);
3047 if (!NT_STATUS_IS_OK(status
)) {
3051 DEBUG(10,("msg_file_was_renamed: Got rename message for sharepath %s, new name %s, "
3053 sharepath
, smb_fname_str_dbg(smb_fname
),
3054 file_id_string_tos(&id
)));
3056 for(fsp
= file_find_di_first(sconn
, id
); fsp
;
3057 fsp
= file_find_di_next(fsp
)) {
3058 if (memcmp(fsp
->conn
->connectpath
, sharepath
, sp_len
) == 0) {
3060 DEBUG(10,("msg_file_was_renamed: renaming file fnum %d from %s -> %s\n",
3061 fsp
->fnum
, fsp_str_dbg(fsp
),
3062 smb_fname_str_dbg(smb_fname
)));
3063 status
= fsp_set_smb_fname(fsp
, smb_fname
);
3064 if (!NT_STATUS_IS_OK(status
)) {
3069 /* Now we have the complete path we can work out if this is
3070 actually within this share and adjust newname accordingly. */
3071 DEBUG(10,("msg_file_was_renamed: share mismatch (sharepath %s "
3072 "not sharepath %s) "
3073 "fnum %d from %s -> %s\n",
3074 fsp
->conn
->connectpath
,
3078 smb_fname_str_dbg(smb_fname
)));
3082 TALLOC_FREE(smb_fname
);
3087 * If a main file is opened for delete, all streams need to be checked for
3088 * !FILE_SHARE_DELETE. Do this by opening with DELETE_ACCESS.
3089 * If that works, delete them all by setting the delete on close and close.
3092 NTSTATUS
open_streams_for_delete(connection_struct
*conn
,
3095 struct stream_struct
*stream_info
= NULL
;
3096 files_struct
**streams
= NULL
;
3098 unsigned int num_streams
= 0;
3099 TALLOC_CTX
*frame
= talloc_stackframe();
3102 status
= vfs_streaminfo(conn
, NULL
, fname
, talloc_tos(),
3103 &num_streams
, &stream_info
);
3105 if (NT_STATUS_EQUAL(status
, NT_STATUS_NOT_IMPLEMENTED
)
3106 || NT_STATUS_EQUAL(status
, NT_STATUS_OBJECT_NAME_NOT_FOUND
)) {
3107 DEBUG(10, ("no streams around\n"));
3109 return NT_STATUS_OK
;
3112 if (!NT_STATUS_IS_OK(status
)) {
3113 DEBUG(10, ("vfs_streaminfo failed: %s\n",
3114 nt_errstr(status
)));
3118 DEBUG(10, ("open_streams_for_delete found %d streams\n",
3121 if (num_streams
== 0) {
3123 return NT_STATUS_OK
;
3126 streams
= talloc_array(talloc_tos(), files_struct
*, num_streams
);
3127 if (streams
== NULL
) {
3128 DEBUG(0, ("talloc failed\n"));
3129 status
= NT_STATUS_NO_MEMORY
;
3133 for (i
=0; i
<num_streams
; i
++) {
3134 struct smb_filename
*smb_fname
= NULL
;
3136 if (strequal(stream_info
[i
].name
, "::$DATA")) {
3141 status
= create_synthetic_smb_fname(talloc_tos(), fname
,
3142 stream_info
[i
].name
,
3144 if (!NT_STATUS_IS_OK(status
)) {
3148 if (SMB_VFS_STAT(conn
, smb_fname
) == -1) {
3149 DEBUG(10, ("Unable to stat stream: %s\n",
3150 smb_fname_str_dbg(smb_fname
)));
3153 status
= SMB_VFS_CREATE_FILE(
3156 0, /* root_dir_fid */
3157 smb_fname
, /* fname */
3158 DELETE_ACCESS
, /* access_mask */
3159 (FILE_SHARE_READ
| /* share_access */
3160 FILE_SHARE_WRITE
| FILE_SHARE_DELETE
),
3161 FILE_OPEN
, /* create_disposition*/
3162 0, /* create_options */
3163 FILE_ATTRIBUTE_NORMAL
, /* file_attributes */
3164 0, /* oplock_request */
3165 0, /* allocation_size */
3166 NTCREATEX_OPTIONS_PRIVATE_STREAM_DELETE
, /* private_flags */
3169 &streams
[i
], /* result */
3172 if (!NT_STATUS_IS_OK(status
)) {
3173 DEBUG(10, ("Could not open stream %s: %s\n",
3174 smb_fname_str_dbg(smb_fname
),
3175 nt_errstr(status
)));
3177 TALLOC_FREE(smb_fname
);
3180 TALLOC_FREE(smb_fname
);
3184 * don't touch the variable "status" beyond this point :-)
3187 for (i
-= 1 ; i
>= 0; i
--) {
3188 if (streams
[i
] == NULL
) {
3192 DEBUG(10, ("Closing stream # %d, %s\n", i
,
3193 fsp_str_dbg(streams
[i
])));
3194 close_file(NULL
, streams
[i
], NORMAL_CLOSE
);
3202 /*********************************************************************
3203 Create a default ACL by inheriting from the parent. If no inheritance
3204 from the parent available, don't set anything. This will leave the actual
3205 permissions the new file or directory already got from the filesystem
3206 as the NT ACL when read.
3207 *********************************************************************/
3209 static NTSTATUS
inherit_new_acl(files_struct
*fsp
)
3211 TALLOC_CTX
*ctx
= talloc_tos();
3212 char *parent_name
= NULL
;
3213 struct security_descriptor
*parent_desc
= NULL
;
3214 NTSTATUS status
= NT_STATUS_OK
;
3215 struct security_descriptor
*psd
= NULL
;
3216 struct dom_sid
*owner_sid
= NULL
;
3217 struct dom_sid
*group_sid
= NULL
;
3218 uint32_t security_info_sent
= (SECINFO_OWNER
| SECINFO_GROUP
| SECINFO_DACL
);
3219 bool inherit_owner
= lp_inherit_owner(SNUM(fsp
->conn
));
3220 bool inheritable_components
= false;
3223 if (!parent_dirname(ctx
, fsp
->fsp_name
->base_name
, &parent_name
, NULL
)) {
3224 return NT_STATUS_NO_MEMORY
;
3227 status
= SMB_VFS_GET_NT_ACL(fsp
->conn
,
3229 (SECINFO_OWNER
| SECINFO_GROUP
| SECINFO_DACL
),
3231 if (!NT_STATUS_IS_OK(status
)) {
3235 inheritable_components
= sd_has_inheritable_components(parent_desc
,
3238 if (!inheritable_components
&& !inherit_owner
) {
3239 /* Nothing to inherit and not setting owner. */
3240 return NT_STATUS_OK
;
3243 /* Create an inherited descriptor from the parent. */
3245 if (DEBUGLEVEL
>= 10) {
3246 DEBUG(10,("inherit_new_acl: parent acl for %s is:\n",
3247 fsp_str_dbg(fsp
) ));
3248 NDR_PRINT_DEBUG(security_descriptor
, parent_desc
);
3251 /* Inherit from parent descriptor if "inherit owner" set. */
3252 if (inherit_owner
) {
3253 owner_sid
= parent_desc
->owner_sid
;
3254 group_sid
= parent_desc
->group_sid
;
3257 if (owner_sid
== NULL
) {
3258 owner_sid
= &fsp
->conn
->session_info
->security_token
->sids
[PRIMARY_USER_SID_INDEX
];
3260 if (group_sid
== NULL
) {
3261 group_sid
= &fsp
->conn
->session_info
->security_token
->sids
[PRIMARY_GROUP_SID_INDEX
];
3264 status
= se_create_child_secdesc(ctx
,
3271 if (!NT_STATUS_IS_OK(status
)) {
3275 /* If inheritable_components == false,
3276 se_create_child_secdesc()
3277 creates a security desriptor with a NULL dacl
3278 entry, but with SEC_DESC_DACL_PRESENT. We need
3279 to remove that flag. */
3281 if (!inheritable_components
) {
3282 security_info_sent
&= ~SECINFO_DACL
;
3283 psd
->type
&= ~SEC_DESC_DACL_PRESENT
;
3286 if (DEBUGLEVEL
>= 10) {
3287 DEBUG(10,("inherit_new_acl: child acl for %s is:\n",
3288 fsp_str_dbg(fsp
) ));
3289 NDR_PRINT_DEBUG(security_descriptor
, psd
);
3292 if (inherit_owner
) {
3293 /* We need to be root to force this. */
3296 status
= SMB_VFS_FSET_NT_ACL(fsp
,
3299 if (inherit_owner
) {
3306 * Wrapper around open_file_ntcreate and open_directory
3309 static NTSTATUS
create_file_unixpath(connection_struct
*conn
,
3310 struct smb_request
*req
,
3311 struct smb_filename
*smb_fname
,
3312 uint32_t access_mask
,
3313 uint32_t share_access
,
3314 uint32_t create_disposition
,
3315 uint32_t create_options
,
3316 uint32_t file_attributes
,
3317 uint32_t oplock_request
,
3318 uint64_t allocation_size
,
3319 uint32_t private_flags
,
3320 struct security_descriptor
*sd
,
3321 struct ea_list
*ea_list
,
3323 files_struct
**result
,
3326 int info
= FILE_WAS_OPENED
;
3327 files_struct
*base_fsp
= NULL
;
3328 files_struct
*fsp
= NULL
;
3331 DEBUG(10,("create_file_unixpath: access_mask = 0x%x "
3332 "file_attributes = 0x%x, share_access = 0x%x, "
3333 "create_disposition = 0x%x create_options = 0x%x "
3334 "oplock_request = 0x%x private_flags = 0x%x "
3335 "ea_list = 0x%p, sd = 0x%p, "
3337 (unsigned int)access_mask
,
3338 (unsigned int)file_attributes
,
3339 (unsigned int)share_access
,
3340 (unsigned int)create_disposition
,
3341 (unsigned int)create_options
,
3342 (unsigned int)oplock_request
,
3343 (unsigned int)private_flags
,
3344 ea_list
, sd
, smb_fname_str_dbg(smb_fname
)));
3346 if (create_options
& FILE_OPEN_BY_FILE_ID
) {
3347 status
= NT_STATUS_NOT_SUPPORTED
;
3351 if (create_options
& NTCREATEX_OPTIONS_INVALID_PARAM_MASK
) {
3352 status
= NT_STATUS_INVALID_PARAMETER
;
3357 oplock_request
|= INTERNAL_OPEN_ONLY
;
3360 if ((conn
->fs_capabilities
& FILE_NAMED_STREAMS
)
3361 && (access_mask
& DELETE_ACCESS
)
3362 && !is_ntfs_stream_smb_fname(smb_fname
)) {
3364 * We can't open a file with DELETE access if any of the
3365 * streams is open without FILE_SHARE_DELETE
3367 status
= open_streams_for_delete(conn
, smb_fname
->base_name
);
3369 if (!NT_STATUS_IS_OK(status
)) {
3374 if ((access_mask
& SEC_FLAG_SYSTEM_SECURITY
) &&
3375 !security_token_has_privilege(get_current_nttok(conn
),
3376 SEC_PRIV_SECURITY
)) {
3377 DEBUG(10, ("create_file_unixpath: open on %s "
3378 "failed - SEC_FLAG_SYSTEM_SECURITY denied.\n",
3379 smb_fname_str_dbg(smb_fname
)));
3380 status
= NT_STATUS_PRIVILEGE_NOT_HELD
;
3384 if ((conn
->fs_capabilities
& FILE_NAMED_STREAMS
)
3385 && is_ntfs_stream_smb_fname(smb_fname
)
3386 && (!(private_flags
& NTCREATEX_OPTIONS_PRIVATE_STREAM_DELETE
))) {
3387 uint32 base_create_disposition
;
3388 struct smb_filename
*smb_fname_base
= NULL
;
3390 if (create_options
& FILE_DIRECTORY_FILE
) {
3391 status
= NT_STATUS_NOT_A_DIRECTORY
;
3395 switch (create_disposition
) {
3397 base_create_disposition
= FILE_OPEN
;
3400 base_create_disposition
= FILE_OPEN_IF
;
3404 /* Create an smb_filename with stream_name == NULL. */
3405 status
= create_synthetic_smb_fname(talloc_tos(),
3406 smb_fname
->base_name
,
3409 if (!NT_STATUS_IS_OK(status
)) {
3413 if (SMB_VFS_STAT(conn
, smb_fname_base
) == -1) {
3414 DEBUG(10, ("Unable to stat stream: %s\n",
3415 smb_fname_str_dbg(smb_fname_base
)));
3418 /* Open the base file. */
3419 status
= create_file_unixpath(conn
, NULL
, smb_fname_base
, 0,
3422 | FILE_SHARE_DELETE
,
3423 base_create_disposition
,
3424 0, 0, 0, 0, 0, NULL
, NULL
,
3426 TALLOC_FREE(smb_fname_base
);
3428 if (!NT_STATUS_IS_OK(status
)) {
3429 DEBUG(10, ("create_file_unixpath for base %s failed: "
3430 "%s\n", smb_fname
->base_name
,
3431 nt_errstr(status
)));
3434 /* we don't need to low level fd */
3439 * If it's a request for a directory open, deal with it separately.
3442 if (create_options
& FILE_DIRECTORY_FILE
) {
3444 if (create_options
& FILE_NON_DIRECTORY_FILE
) {
3445 status
= NT_STATUS_INVALID_PARAMETER
;
3449 /* Can't open a temp directory. IFS kit test. */
3450 if (!(file_attributes
& FILE_FLAG_POSIX_SEMANTICS
) &&
3451 (file_attributes
& FILE_ATTRIBUTE_TEMPORARY
)) {
3452 status
= NT_STATUS_INVALID_PARAMETER
;
3457 * We will get a create directory here if the Win32
3458 * app specified a security descriptor in the
3459 * CreateDirectory() call.
3463 status
= open_directory(
3464 conn
, req
, smb_fname
, access_mask
, share_access
,
3465 create_disposition
, create_options
, file_attributes
,
3470 * Ordinary file case.
3473 status
= file_new(req
, conn
, &fsp
);
3474 if(!NT_STATUS_IS_OK(status
)) {
3478 status
= fsp_set_smb_fname(fsp
, smb_fname
);
3479 if (!NT_STATUS_IS_OK(status
)) {
3484 * We're opening the stream element of a base_fsp
3485 * we already opened. Set up the base_fsp pointer.
3488 fsp
->base_fsp
= base_fsp
;
3491 status
= open_file_ntcreate(conn
,
3503 if(!NT_STATUS_IS_OK(status
)) {
3504 file_free(req
, fsp
);
3508 if (NT_STATUS_EQUAL(status
, NT_STATUS_FILE_IS_A_DIRECTORY
)) {
3510 /* A stream open never opens a directory */
3513 status
= NT_STATUS_FILE_IS_A_DIRECTORY
;
3518 * Fail the open if it was explicitly a non-directory
3522 if (create_options
& FILE_NON_DIRECTORY_FILE
) {
3523 status
= NT_STATUS_FILE_IS_A_DIRECTORY
;
3528 status
= open_directory(
3529 conn
, req
, smb_fname
, access_mask
,
3530 share_access
, create_disposition
,
3531 create_options
, file_attributes
,
3536 if (!NT_STATUS_IS_OK(status
)) {
3540 fsp
->base_fsp
= base_fsp
;
3542 if ((ea_list
!= NULL
) &&
3543 ((info
== FILE_WAS_CREATED
) || (info
== FILE_WAS_OVERWRITTEN
))) {
3544 status
= set_ea(conn
, fsp
, fsp
->fsp_name
, ea_list
);
3545 if (!NT_STATUS_IS_OK(status
)) {
3550 if (!fsp
->is_directory
&& S_ISDIR(fsp
->fsp_name
->st
.st_ex_mode
)) {
3551 status
= NT_STATUS_ACCESS_DENIED
;
3555 /* Save the requested allocation size. */
3556 if ((info
== FILE_WAS_CREATED
) || (info
== FILE_WAS_OVERWRITTEN
)) {
3558 && (allocation_size
> fsp
->fsp_name
->st
.st_ex_size
)) {
3559 fsp
->initial_allocation_size
= smb_roundup(
3560 fsp
->conn
, allocation_size
);
3561 if (fsp
->is_directory
) {
3562 /* Can't set allocation size on a directory. */
3563 status
= NT_STATUS_ACCESS_DENIED
;
3566 if (vfs_allocate_file_space(
3567 fsp
, fsp
->initial_allocation_size
) == -1) {
3568 status
= NT_STATUS_DISK_FULL
;
3572 fsp
->initial_allocation_size
= smb_roundup(
3573 fsp
->conn
, (uint64_t)fsp
->fsp_name
->st
.st_ex_size
);
3577 if ((info
== FILE_WAS_CREATED
) && lp_nt_acl_support(SNUM(conn
)) &&
3578 fsp
->base_fsp
== NULL
) {
3581 * According to the MS documentation, the only time the security
3582 * descriptor is applied to the opened file is iff we *created* the
3583 * file; an existing file stays the same.
3585 * Also, it seems (from observation) that you can open the file with
3586 * any access mask but you can still write the sd. We need to override
3587 * the granted access before we call set_sd
3588 * Patch for bug #2242 from Tom Lackemann <cessnatomny@yahoo.com>.
3591 uint32_t sec_info_sent
;
3592 uint32_t saved_access_mask
= fsp
->access_mask
;
3594 sec_info_sent
= get_sec_info(sd
);
3596 fsp
->access_mask
= FILE_GENERIC_ALL
;
3598 /* Convert all the generic bits. */
3599 security_acl_map_generic(sd
->dacl
, &file_generic_mapping
);
3600 security_acl_map_generic(sd
->sacl
, &file_generic_mapping
);
3602 if (sec_info_sent
& (SECINFO_OWNER
|
3606 status
= SMB_VFS_FSET_NT_ACL(fsp
, sec_info_sent
, sd
);
3609 fsp
->access_mask
= saved_access_mask
;
3611 if (!NT_STATUS_IS_OK(status
)) {
3614 } else if (lp_inherit_acls(SNUM(conn
))) {
3615 /* Inherit from parent. Errors here are not fatal. */
3616 status
= inherit_new_acl(fsp
);
3617 if (!NT_STATUS_IS_OK(status
)) {
3618 DEBUG(10,("inherit_new_acl: failed for %s with %s\n",
3620 nt_errstr(status
) ));
3625 DEBUG(10, ("create_file_unixpath: info=%d\n", info
));
3628 if (pinfo
!= NULL
) {
3632 smb_fname
->st
= fsp
->fsp_name
->st
;
3634 return NT_STATUS_OK
;
3637 DEBUG(10, ("create_file_unixpath: %s\n", nt_errstr(status
)));
3640 if (base_fsp
&& fsp
->base_fsp
== base_fsp
) {
3642 * The close_file below will close
3647 close_file(req
, fsp
, ERROR_CLOSE
);
3650 if (base_fsp
!= NULL
) {
3651 close_file(req
, base_fsp
, ERROR_CLOSE
);
3658 * Calculate the full path name given a relative fid.
3660 NTSTATUS
get_relative_fid_filename(connection_struct
*conn
,
3661 struct smb_request
*req
,
3662 uint16_t root_dir_fid
,
3663 const struct smb_filename
*smb_fname
,
3664 struct smb_filename
**smb_fname_out
)
3666 files_struct
*dir_fsp
;
3667 char *parent_fname
= NULL
;
3668 char *new_base_name
= NULL
;
3671 if (root_dir_fid
== 0 || !smb_fname
) {
3672 status
= NT_STATUS_INTERNAL_ERROR
;
3676 dir_fsp
= file_fsp(req
, root_dir_fid
);
3678 if (dir_fsp
== NULL
) {
3679 status
= NT_STATUS_INVALID_HANDLE
;
3683 if (is_ntfs_stream_smb_fname(dir_fsp
->fsp_name
)) {
3684 status
= NT_STATUS_INVALID_HANDLE
;
3688 if (!dir_fsp
->is_directory
) {
3691 * Check to see if this is a mac fork of some kind.
3694 if ((conn
->fs_capabilities
& FILE_NAMED_STREAMS
) &&
3695 is_ntfs_stream_smb_fname(smb_fname
)) {
3696 status
= NT_STATUS_OBJECT_PATH_NOT_FOUND
;
3701 we need to handle the case when we get a
3702 relative open relative to a file and the
3703 pathname is blank - this is a reopen!
3704 (hint from demyn plantenberg)
3707 status
= NT_STATUS_INVALID_HANDLE
;
3711 if (ISDOT(dir_fsp
->fsp_name
->base_name
)) {
3713 * We're at the toplevel dir, the final file name
3714 * must not contain ./, as this is filtered out
3715 * normally by srvstr_get_path and unix_convert
3716 * explicitly rejects paths containing ./.
3718 parent_fname
= talloc_strdup(talloc_tos(), "");
3719 if (parent_fname
== NULL
) {
3720 status
= NT_STATUS_NO_MEMORY
;
3724 size_t dir_name_len
= strlen(dir_fsp
->fsp_name
->base_name
);
3727 * Copy in the base directory name.
3730 parent_fname
= talloc_array(talloc_tos(), char,
3732 if (parent_fname
== NULL
) {
3733 status
= NT_STATUS_NO_MEMORY
;
3736 memcpy(parent_fname
, dir_fsp
->fsp_name
->base_name
,
3740 * Ensure it ends in a '/'.
3741 * We used TALLOC_SIZE +2 to add space for the '/'.
3745 && (parent_fname
[dir_name_len
-1] != '\\')
3746 && (parent_fname
[dir_name_len
-1] != '/')) {
3747 parent_fname
[dir_name_len
] = '/';
3748 parent_fname
[dir_name_len
+1] = '\0';
3752 new_base_name
= talloc_asprintf(talloc_tos(), "%s%s", parent_fname
,
3753 smb_fname
->base_name
);
3754 if (new_base_name
== NULL
) {
3755 status
= NT_STATUS_NO_MEMORY
;
3759 status
= filename_convert(req
,
3761 req
->flags2
& FLAGS2_DFS_PATHNAMES
,
3766 if (!NT_STATUS_IS_OK(status
)) {
3771 TALLOC_FREE(parent_fname
);
3772 TALLOC_FREE(new_base_name
);
3776 NTSTATUS
create_file_default(connection_struct
*conn
,
3777 struct smb_request
*req
,
3778 uint16_t root_dir_fid
,
3779 struct smb_filename
*smb_fname
,
3780 uint32_t access_mask
,
3781 uint32_t share_access
,
3782 uint32_t create_disposition
,
3783 uint32_t create_options
,
3784 uint32_t file_attributes
,
3785 uint32_t oplock_request
,
3786 uint64_t allocation_size
,
3787 uint32_t private_flags
,
3788 struct security_descriptor
*sd
,
3789 struct ea_list
*ea_list
,
3790 files_struct
**result
,
3793 int info
= FILE_WAS_OPENED
;
3794 files_struct
*fsp
= NULL
;
3796 bool stream_name
= false;
3798 DEBUG(10,("create_file: access_mask = 0x%x "
3799 "file_attributes = 0x%x, share_access = 0x%x, "
3800 "create_disposition = 0x%x create_options = 0x%x "
3801 "oplock_request = 0x%x "
3802 "private_flags = 0x%x "
3803 "root_dir_fid = 0x%x, ea_list = 0x%p, sd = 0x%p, "
3805 (unsigned int)access_mask
,
3806 (unsigned int)file_attributes
,
3807 (unsigned int)share_access
,
3808 (unsigned int)create_disposition
,
3809 (unsigned int)create_options
,
3810 (unsigned int)oplock_request
,
3811 (unsigned int)private_flags
,
3812 (unsigned int)root_dir_fid
,
3813 ea_list
, sd
, smb_fname_str_dbg(smb_fname
)));
3816 * Calculate the filename from the root_dir_if if necessary.
3819 if (root_dir_fid
!= 0) {
3820 struct smb_filename
*smb_fname_out
= NULL
;
3821 status
= get_relative_fid_filename(conn
, req
, root_dir_fid
,
3822 smb_fname
, &smb_fname_out
);
3823 if (!NT_STATUS_IS_OK(status
)) {
3826 smb_fname
= smb_fname_out
;
3830 * Check to see if this is a mac fork of some kind.
3833 stream_name
= is_ntfs_stream_smb_fname(smb_fname
);
3835 enum FAKE_FILE_TYPE fake_file_type
;
3837 fake_file_type
= is_fake_file(smb_fname
);
3839 if (fake_file_type
!= FAKE_FILE_TYPE_NONE
) {
3842 * Here we go! support for changing the disk quotas
3845 * We need to fake up to open this MAGIC QUOTA file
3846 * and return a valid FID.
3848 * w2k close this file directly after openening xp
3849 * also tries a QUERY_FILE_INFO on the file and then
3852 status
= open_fake_file(req
, conn
, req
->vuid
,
3853 fake_file_type
, smb_fname
,
3855 if (!NT_STATUS_IS_OK(status
)) {
3859 ZERO_STRUCT(smb_fname
->st
);
3863 if (!(conn
->fs_capabilities
& FILE_NAMED_STREAMS
)) {
3864 status
= NT_STATUS_OBJECT_NAME_NOT_FOUND
;
3869 if (is_ntfs_default_stream_smb_fname(smb_fname
)) {
3871 smb_fname
->stream_name
= NULL
;
3872 /* We have to handle this error here. */
3873 if (create_options
& FILE_DIRECTORY_FILE
) {
3874 status
= NT_STATUS_NOT_A_DIRECTORY
;
3877 if (lp_posix_pathnames()) {
3878 ret
= SMB_VFS_LSTAT(conn
, smb_fname
);
3880 ret
= SMB_VFS_STAT(conn
, smb_fname
);
3883 if (ret
== 0 && VALID_STAT_OF_DIR(smb_fname
->st
)) {
3884 status
= NT_STATUS_FILE_IS_A_DIRECTORY
;
3889 status
= create_file_unixpath(
3890 conn
, req
, smb_fname
, access_mask
, share_access
,
3891 create_disposition
, create_options
, file_attributes
,
3892 oplock_request
, allocation_size
, private_flags
,
3896 if (!NT_STATUS_IS_OK(status
)) {
3901 DEBUG(10, ("create_file: info=%d\n", info
));
3904 if (pinfo
!= NULL
) {
3907 return NT_STATUS_OK
;
3910 DEBUG(10, ("create_file: %s\n", nt_errstr(status
)));
3913 close_file(req
, fsp
, ERROR_CLOSE
);