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 "smbd/globals.h"
25 extern const struct generic_mapping file_generic_mapping
;
27 struct deferred_open_record
{
28 bool delayed_for_oplocks
;
32 static NTSTATUS
create_file_unixpath(connection_struct
*conn
,
33 struct smb_request
*req
,
34 struct smb_filename
*smb_fname
,
36 uint32_t share_access
,
37 uint32_t create_disposition
,
38 uint32_t create_options
,
39 uint32_t file_attributes
,
40 uint32_t oplock_request
,
41 uint64_t allocation_size
,
42 struct security_descriptor
*sd
,
43 struct ea_list
*ea_list
,
45 files_struct
**result
,
48 /****************************************************************************
49 SMB1 file varient of se_access_check. Never test FILE_READ_ATTRIBUTES.
50 ****************************************************************************/
52 NTSTATUS
smb1_file_se_access_check(const struct security_descriptor
*sd
,
53 const NT_USER_TOKEN
*token
,
54 uint32_t access_desired
,
55 uint32_t *access_granted
)
57 return se_access_check(sd
,
59 (access_desired
& ~FILE_READ_ATTRIBUTES
),
63 /****************************************************************************
64 Check if we have open rights.
65 ****************************************************************************/
67 static NTSTATUS
check_open_rights(struct connection_struct
*conn
,
68 const struct smb_filename
*smb_fname
,
70 uint32_t *access_granted
)
72 /* Check if we have rights to open. */
74 struct security_descriptor
*sd
;
78 if (conn
->server_info
->utok
.uid
== 0 || conn
->admin_user
) {
79 /* I'm sorry sir, I didn't know you were root... */
80 *access_granted
= access_mask
;
81 if (access_mask
& SEC_FLAG_MAXIMUM_ALLOWED
) {
82 *access_granted
|= FILE_GENERIC_ALL
;
87 status
= SMB_VFS_GET_NT_ACL(conn
, smb_fname
->base_name
,
88 (OWNER_SECURITY_INFORMATION
|
89 GROUP_SECURITY_INFORMATION
|
90 DACL_SECURITY_INFORMATION
),&sd
);
92 if (!NT_STATUS_IS_OK(status
)) {
93 DEBUG(10, ("check_open_rights: Could not get acl "
95 smb_fname_str_dbg(smb_fname
),
101 status
= smb1_file_se_access_check(sd
,
102 conn
->server_info
->ptok
,
108 DEBUG(10,("check_open_rights: file %s requesting "
109 "0x%x returning 0x%x (%s)\n",
110 smb_fname_str_dbg(smb_fname
),
111 (unsigned int)access_mask
,
112 (unsigned int)*access_granted
,
113 nt_errstr(status
) ));
118 /****************************************************************************
119 fd support routines - attempt to do a dos_open.
120 ****************************************************************************/
122 static NTSTATUS
fd_open(struct connection_struct
*conn
,
123 struct smb_filename
*smb_fname
,
128 NTSTATUS status
= NT_STATUS_OK
;
132 * Never follow symlinks on a POSIX client. The
133 * client should be doing this.
136 if (fsp
->posix_open
|| !lp_symlinks(SNUM(conn
))) {
141 fsp
->fh
->fd
= SMB_VFS_OPEN(conn
, smb_fname
, fsp
, flags
, mode
);
142 if (fsp
->fh
->fd
== -1) {
143 status
= map_nt_error_from_unix(errno
);
144 if (errno
== EMFILE
) {
145 static time_t last_warned
= 0L;
147 if (time((time_t *) NULL
) > last_warned
) {
148 DEBUG(0,("Too many open files, unable "
149 "to open more! smbd's max "
151 lp_max_open_files()));
152 last_warned
= time((time_t *) NULL
);
158 DEBUG(10,("fd_open: name %s, flags = 0%o mode = 0%o, fd = %d. %s\n",
159 smb_fname_str_dbg(smb_fname
), flags
, (int)mode
, fsp
->fh
->fd
,
160 (fsp
->fh
->fd
== -1) ? strerror(errno
) : "" ));
165 /****************************************************************************
166 Close the file associated with a fsp.
167 ****************************************************************************/
169 NTSTATUS
fd_close(files_struct
*fsp
)
173 if (fsp
->fh
->fd
== -1) {
174 return NT_STATUS_OK
; /* What we used to call a stat open. */
176 if (fsp
->fh
->ref_count
> 1) {
177 return NT_STATUS_OK
; /* Shared handle. Only close last reference. */
180 ret
= SMB_VFS_CLOSE(fsp
);
183 return map_nt_error_from_unix(errno
);
188 /****************************************************************************
189 Change the ownership of a file to that of the parent directory.
190 Do this by fd if possible.
191 ****************************************************************************/
193 void change_file_owner_to_parent(connection_struct
*conn
,
194 const char *inherit_from_dir
,
197 struct smb_filename
*smb_fname_parent
= NULL
;
201 status
= create_synthetic_smb_fname(talloc_tos(), inherit_from_dir
,
202 NULL
, NULL
, &smb_fname_parent
);
203 if (!NT_STATUS_IS_OK(status
)) {
207 ret
= SMB_VFS_STAT(conn
, smb_fname_parent
);
209 DEBUG(0,("change_file_owner_to_parent: failed to stat parent "
210 "directory %s. Error was %s\n",
211 smb_fname_str_dbg(smb_fname_parent
),
217 ret
= SMB_VFS_FCHOWN(fsp
, smb_fname_parent
->st
.st_ex_uid
, (gid_t
)-1);
220 DEBUG(0,("change_file_owner_to_parent: failed to fchown "
221 "file %s to parent directory uid %u. Error "
222 "was %s\n", fsp_str_dbg(fsp
),
223 (unsigned int)smb_fname_parent
->st
.st_ex_uid
,
227 DEBUG(10,("change_file_owner_to_parent: changed new file %s to "
228 "parent directory uid %u.\n", fsp_str_dbg(fsp
),
229 (unsigned int)smb_fname_parent
->st
.st_ex_uid
));
231 TALLOC_FREE(smb_fname_parent
);
234 NTSTATUS
change_dir_owner_to_parent(connection_struct
*conn
,
235 const char *inherit_from_dir
,
237 SMB_STRUCT_STAT
*psbuf
)
239 struct smb_filename
*smb_fname_parent
= NULL
;
240 struct smb_filename
*smb_fname_cwd
= NULL
;
241 char *saved_dir
= NULL
;
242 TALLOC_CTX
*ctx
= talloc_tos();
243 NTSTATUS status
= NT_STATUS_OK
;
246 status
= create_synthetic_smb_fname(ctx
, inherit_from_dir
, NULL
, NULL
,
248 if (!NT_STATUS_IS_OK(status
)) {
252 ret
= SMB_VFS_STAT(conn
, smb_fname_parent
);
254 status
= map_nt_error_from_unix(errno
);
255 DEBUG(0,("change_dir_owner_to_parent: failed to stat parent "
256 "directory %s. Error was %s\n",
257 smb_fname_str_dbg(smb_fname_parent
),
262 /* We've already done an lstat into psbuf, and we know it's a
263 directory. If we can cd into the directory and the dev/ino
264 are the same then we can safely chown without races as
265 we're locking the directory in place by being in it. This
266 should work on any UNIX (thanks tridge :-). JRA.
269 saved_dir
= vfs_GetWd(ctx
,conn
);
271 status
= map_nt_error_from_unix(errno
);
272 DEBUG(0,("change_dir_owner_to_parent: failed to get "
273 "current working directory. Error was %s\n",
278 /* Chdir into the new path. */
279 if (vfs_ChDir(conn
, fname
) == -1) {
280 status
= map_nt_error_from_unix(errno
);
281 DEBUG(0,("change_dir_owner_to_parent: failed to change "
282 "current working directory to %s. Error "
283 "was %s\n", fname
, strerror(errno
) ));
287 status
= create_synthetic_smb_fname(ctx
, ".", NULL
, NULL
,
289 if (!NT_STATUS_IS_OK(status
)) {
293 ret
= SMB_VFS_STAT(conn
, smb_fname_cwd
);
295 status
= map_nt_error_from_unix(errno
);
296 DEBUG(0,("change_dir_owner_to_parent: failed to stat "
297 "directory '.' (%s) Error was %s\n",
298 fname
, strerror(errno
)));
302 /* Ensure we're pointing at the same place. */
303 if (smb_fname_cwd
->st
.st_ex_dev
!= psbuf
->st_ex_dev
||
304 smb_fname_cwd
->st
.st_ex_ino
!= psbuf
->st_ex_ino
||
305 smb_fname_cwd
->st
.st_ex_mode
!= psbuf
->st_ex_mode
) {
306 DEBUG(0,("change_dir_owner_to_parent: "
307 "device/inode/mode on directory %s changed. "
308 "Refusing to chown !\n", fname
));
309 status
= NT_STATUS_ACCESS_DENIED
;
314 ret
= SMB_VFS_CHOWN(conn
, ".", smb_fname_parent
->st
.st_ex_uid
,
318 status
= map_nt_error_from_unix(errno
);
319 DEBUG(10,("change_dir_owner_to_parent: failed to chown "
320 "directory %s to parent directory uid %u. "
321 "Error was %s\n", fname
,
322 (unsigned int)smb_fname_parent
->st
.st_ex_uid
,
327 DEBUG(10,("change_dir_owner_to_parent: changed ownership of new "
328 "directory %s to parent directory uid %u.\n",
329 fname
, (unsigned int)smb_fname_parent
->st
.st_ex_uid
));
332 vfs_ChDir(conn
,saved_dir
);
334 TALLOC_FREE(smb_fname_parent
);
335 TALLOC_FREE(smb_fname_cwd
);
339 /****************************************************************************
341 ****************************************************************************/
343 static NTSTATUS
open_file(files_struct
*fsp
,
344 connection_struct
*conn
,
345 struct smb_request
*req
,
346 const char *parent_dir
,
347 struct smb_filename
*smb_fname
,
350 uint32 access_mask
, /* client requested access mask. */
351 uint32 open_access_mask
) /* what we're actually using in the open. */
353 NTSTATUS status
= NT_STATUS_OK
;
354 int accmode
= (flags
& O_ACCMODE
);
355 int local_flags
= flags
;
356 bool file_existed
= VALID_STAT(smb_fname
->st
);
361 /* Check permissions */
364 * This code was changed after seeing a client open request
365 * containing the open mode of (DENY_WRITE/read-only) with
366 * the 'create if not exist' bit set. The previous code
367 * would fail to open the file read only on a read-only share
368 * as it was checking the flags parameter directly against O_RDONLY,
369 * this was failing as the flags parameter was set to O_RDONLY|O_CREAT.
373 if (!CAN_WRITE(conn
)) {
374 /* It's a read-only share - fail if we wanted to write. */
375 if(accmode
!= O_RDONLY
|| (flags
& O_TRUNC
) || (flags
& O_APPEND
)) {
376 DEBUG(3,("Permission denied opening %s\n",
377 smb_fname_str_dbg(smb_fname
)));
378 return NT_STATUS_ACCESS_DENIED
;
379 } else if(flags
& O_CREAT
) {
380 /* We don't want to write - but we must make sure that
381 O_CREAT doesn't create the file if we have write
382 access into the directory.
384 flags
&= ~(O_CREAT
|O_EXCL
);
385 local_flags
&= ~(O_CREAT
|O_EXCL
);
390 * This little piece of insanity is inspired by the
391 * fact that an NT client can open a file for O_RDONLY,
392 * but set the create disposition to FILE_EXISTS_TRUNCATE.
393 * If the client *can* write to the file, then it expects to
394 * truncate the file, even though it is opening for readonly.
395 * Quicken uses this stupid trick in backup file creation...
396 * Thanks *greatly* to "David W. Chapman Jr." <dwcjr@inethouston.net>
397 * for helping track this one down. It didn't bite us in 2.0.x
398 * as we always opened files read-write in that release. JRA.
401 if ((accmode
== O_RDONLY
) && ((flags
& O_TRUNC
) == O_TRUNC
)) {
402 DEBUG(10,("open_file: truncate requested on read-only open "
403 "for file %s\n", smb_fname_str_dbg(smb_fname
)));
404 local_flags
= (flags
& ~O_ACCMODE
)|O_RDWR
;
407 if ((open_access_mask
& (FILE_READ_DATA
|FILE_WRITE_DATA
|FILE_APPEND_DATA
|FILE_EXECUTE
)) ||
408 (!file_existed
&& (local_flags
& O_CREAT
)) ||
409 ((local_flags
& O_TRUNC
) == O_TRUNC
) ) {
413 * We can't actually truncate here as the file may be locked.
414 * open_file_ntcreate will take care of the truncate later. JRA.
417 local_flags
&= ~O_TRUNC
;
419 #if defined(O_NONBLOCK) && defined(S_ISFIFO)
421 * We would block on opening a FIFO with no one else on the
422 * other end. Do what we used to do and add O_NONBLOCK to the
426 if (file_existed
&& S_ISFIFO(smb_fname
->st
.st_ex_mode
)) {
427 local_flags
|= O_NONBLOCK
;
431 /* Don't create files with Microsoft wildcard characters. */
434 * wildcard characters are allowed in stream names
435 * only test the basefilename
437 wild
= fsp
->base_fsp
->fsp_name
->base_name
;
439 wild
= smb_fname
->base_name
;
441 if ((local_flags
& O_CREAT
) && !file_existed
&&
443 return NT_STATUS_OBJECT_NAME_INVALID
;
446 /* Actually do the open */
447 status
= fd_open(conn
, smb_fname
, fsp
, local_flags
, unx_mode
);
448 if (!NT_STATUS_IS_OK(status
)) {
449 DEBUG(3,("Error opening file %s (%s) (local_flags=%d) "
450 "(flags=%d)\n", smb_fname_str_dbg(smb_fname
),
451 nt_errstr(status
),local_flags
,flags
));
455 if ((local_flags
& O_CREAT
) && !file_existed
) {
457 /* Inherit the ACL if required */
458 if (lp_inherit_perms(SNUM(conn
))) {
459 inherit_access_posix_acl(conn
, parent_dir
,
460 smb_fname
->base_name
,
464 /* Change the owner if required. */
465 if (lp_inherit_owner(SNUM(conn
))) {
466 change_file_owner_to_parent(conn
, parent_dir
,
470 notify_fname(conn
, NOTIFY_ACTION_ADDED
,
471 FILE_NOTIFY_CHANGE_FILE_NAME
,
472 smb_fname
->base_name
);
476 fsp
->fh
->fd
= -1; /* What we used to call a stat open. */
478 uint32_t access_granted
= 0;
480 status
= check_open_rights(conn
,
484 if (!NT_STATUS_IS_OK(status
)) {
485 if (NT_STATUS_EQUAL(status
, NT_STATUS_ACCESS_DENIED
)) {
487 * On NT_STATUS_ACCESS_DENIED, access_granted
488 * contains the denied bits.
491 if ((access_mask
& FILE_WRITE_ATTRIBUTES
) &&
492 (access_granted
& FILE_WRITE_ATTRIBUTES
) &&
493 (lp_map_readonly(SNUM(conn
)) ||
494 lp_map_archive(SNUM(conn
)) ||
495 lp_map_hidden(SNUM(conn
)) ||
496 lp_map_system(SNUM(conn
)))) {
497 access_granted
&= ~FILE_WRITE_ATTRIBUTES
;
499 DEBUG(10,("open_file: "
508 if ((access_mask
& DELETE_ACCESS
) &&
509 (access_granted
& DELETE_ACCESS
) &&
510 can_delete_file_in_directory(conn
,
512 /* Were we trying to do a stat open
513 * for delete and didn't get DELETE
514 * access (only) ? Check if the
515 * directory allows DELETE_CHILD.
517 * http://blogs.msdn.com/oldnewthing/archive/2004/06/04/148426.aspx
520 access_granted
&= ~DELETE_ACCESS
;
522 DEBUG(10,("open_file: "
530 if (access_granted
!= 0) {
531 DEBUG(10,("open_file: Access "
538 } else if (NT_STATUS_EQUAL(status
, NT_STATUS_OBJECT_NAME_NOT_FOUND
) &&
540 S_ISLNK(smb_fname
->st
.st_ex_mode
)) {
541 /* This is a POSIX stat open for delete
542 * or rename on a symlink that points
544 DEBUG(10,("open_file: allowing POSIX "
545 "open on bad symlink %s\n",
549 DEBUG(10,("open_file: "
550 "check_open_rights on file "
552 smb_fname_str_dbg(smb_fname
),
553 nt_errstr(status
) ));
563 if (fsp
->fh
->fd
== -1) {
564 ret
= SMB_VFS_STAT(conn
, smb_fname
);
566 ret
= SMB_VFS_FSTAT(fsp
, &smb_fname
->st
);
567 /* If we have an fd, this stat should succeed. */
569 DEBUG(0,("Error doing fstat on open file %s "
571 smb_fname_str_dbg(smb_fname
),
576 /* For a non-io open, this stat failing means file not found. JRA */
578 status
= map_nt_error_from_unix(errno
);
585 * POSIX allows read-only opens of directories. We don't
586 * want to do this (we use a different code path for this)
587 * so catch a directory open and return an EISDIR. JRA.
590 if(S_ISDIR(smb_fname
->st
.st_ex_mode
)) {
593 return NT_STATUS_FILE_IS_A_DIRECTORY
;
596 fsp
->mode
= smb_fname
->st
.st_ex_mode
;
597 fsp
->file_id
= vfs_file_id_from_sbuf(conn
, &smb_fname
->st
);
598 fsp
->vuid
= req
? req
->vuid
: UID_FIELD_INVALID
;
599 fsp
->file_pid
= req
? req
->smbpid
: 0;
600 fsp
->can_lock
= True
;
601 fsp
->can_read
= (access_mask
& (FILE_READ_DATA
)) ? True
: False
;
602 if (!CAN_WRITE(conn
)) {
603 fsp
->can_write
= False
;
605 fsp
->can_write
= (access_mask
& (FILE_WRITE_DATA
| FILE_APPEND_DATA
)) ?
608 fsp
->print_file
= False
;
609 fsp
->modified
= False
;
610 fsp
->sent_oplock_break
= NO_BREAK_SENT
;
611 fsp
->is_directory
= False
;
612 if (conn
->aio_write_behind_list
&&
613 is_in_path(smb_fname
->base_name
, conn
->aio_write_behind_list
,
614 conn
->case_sensitive
)) {
615 fsp
->aio_write_behind
= True
;
617 status
= fsp_set_smb_fname(fsp
, smb_fname
);
618 if (!NT_STATUS_IS_OK(status
)) {
620 errno
= map_errno_from_nt_status(status
);
624 fsp
->wcp
= NULL
; /* Write cache pointer. */
626 DEBUG(2,("%s opened file %s read=%s write=%s (numopen=%d)\n",
627 conn
->server_info
->unix_name
,
628 smb_fname_str_dbg(smb_fname
),
629 BOOLSTR(fsp
->can_read
), BOOLSTR(fsp
->can_write
),
630 conn
->num_files_open
));
636 /*******************************************************************
637 Return True if the filename is one of the special executable types.
638 ********************************************************************/
640 bool is_executable(const char *fname
)
642 if ((fname
= strrchr_m(fname
,'.'))) {
643 if (strequal(fname
,".com") ||
644 strequal(fname
,".dll") ||
645 strequal(fname
,".exe") ||
646 strequal(fname
,".sym")) {
653 /****************************************************************************
654 Check if we can open a file with a share mode.
655 Returns True if conflict, False if not.
656 ****************************************************************************/
658 static bool share_conflict(struct share_mode_entry
*entry
,
662 DEBUG(10,("share_conflict: entry->access_mask = 0x%x, "
663 "entry->share_access = 0x%x, "
664 "entry->private_options = 0x%x\n",
665 (unsigned int)entry
->access_mask
,
666 (unsigned int)entry
->share_access
,
667 (unsigned int)entry
->private_options
));
669 DEBUG(10,("share_conflict: access_mask = 0x%x, share_access = 0x%x\n",
670 (unsigned int)access_mask
, (unsigned int)share_access
));
672 if ((entry
->access_mask
& (FILE_WRITE_DATA
|
676 DELETE_ACCESS
)) == 0) {
677 DEBUG(10,("share_conflict: No conflict due to "
678 "entry->access_mask = 0x%x\n",
679 (unsigned int)entry
->access_mask
));
683 if ((access_mask
& (FILE_WRITE_DATA
|
687 DELETE_ACCESS
)) == 0) {
688 DEBUG(10,("share_conflict: No conflict due to "
689 "access_mask = 0x%x\n",
690 (unsigned int)access_mask
));
694 #if 1 /* JRA TEST - Superdebug. */
695 #define CHECK_MASK(num, am, right, sa, share) \
696 DEBUG(10,("share_conflict: [%d] am (0x%x) & right (0x%x) = 0x%x\n", \
697 (unsigned int)(num), (unsigned int)(am), \
698 (unsigned int)(right), (unsigned int)(am)&(right) )); \
699 DEBUG(10,("share_conflict: [%d] sa (0x%x) & share (0x%x) = 0x%x\n", \
700 (unsigned int)(num), (unsigned int)(sa), \
701 (unsigned int)(share), (unsigned int)(sa)&(share) )); \
702 if (((am) & (right)) && !((sa) & (share))) { \
703 DEBUG(10,("share_conflict: check %d conflict am = 0x%x, right = 0x%x, \
704 sa = 0x%x, share = 0x%x\n", (num), (unsigned int)(am), (unsigned int)(right), (unsigned int)(sa), \
705 (unsigned int)(share) )); \
709 #define CHECK_MASK(num, am, right, sa, share) \
710 if (((am) & (right)) && !((sa) & (share))) { \
711 DEBUG(10,("share_conflict: check %d conflict am = 0x%x, right = 0x%x, \
712 sa = 0x%x, share = 0x%x\n", (num), (unsigned int)(am), (unsigned int)(right), (unsigned int)(sa), \
713 (unsigned int)(share) )); \
718 CHECK_MASK(1, entry
->access_mask
, FILE_WRITE_DATA
| FILE_APPEND_DATA
,
719 share_access
, FILE_SHARE_WRITE
);
720 CHECK_MASK(2, access_mask
, FILE_WRITE_DATA
| FILE_APPEND_DATA
,
721 entry
->share_access
, FILE_SHARE_WRITE
);
723 CHECK_MASK(3, entry
->access_mask
, FILE_READ_DATA
| FILE_EXECUTE
,
724 share_access
, FILE_SHARE_READ
);
725 CHECK_MASK(4, access_mask
, FILE_READ_DATA
| FILE_EXECUTE
,
726 entry
->share_access
, FILE_SHARE_READ
);
728 CHECK_MASK(5, entry
->access_mask
, DELETE_ACCESS
,
729 share_access
, FILE_SHARE_DELETE
);
730 CHECK_MASK(6, access_mask
, DELETE_ACCESS
,
731 entry
->share_access
, FILE_SHARE_DELETE
);
733 DEBUG(10,("share_conflict: No conflict.\n"));
737 #if defined(DEVELOPER)
738 static void validate_my_share_entries(int num
,
739 struct share_mode_entry
*share_entry
)
743 if (!procid_is_me(&share_entry
->pid
)) {
747 if (is_deferred_open_entry(share_entry
) &&
748 !open_was_deferred(share_entry
->op_mid
)) {
749 char *str
= talloc_asprintf(talloc_tos(),
750 "Got a deferred entry without a request: "
752 share_mode_str(talloc_tos(), num
, share_entry
));
756 if (!is_valid_share_mode_entry(share_entry
)) {
760 fsp
= file_find_dif(share_entry
->id
,
761 share_entry
->share_file_id
);
763 DEBUG(0,("validate_my_share_entries: PANIC : %s\n",
764 share_mode_str(talloc_tos(), num
, share_entry
) ));
765 smb_panic("validate_my_share_entries: Cannot match a "
766 "share entry with an open file\n");
769 if (is_deferred_open_entry(share_entry
) ||
770 is_unused_share_mode_entry(share_entry
)) {
774 if ((share_entry
->op_type
== NO_OPLOCK
) &&
775 (fsp
->oplock_type
== FAKE_LEVEL_II_OPLOCK
)) {
776 /* Someone has already written to it, but I haven't yet
781 if (((uint16
)fsp
->oplock_type
) != share_entry
->op_type
) {
790 DEBUG(0,("validate_my_share_entries: PANIC : %s\n",
791 share_mode_str(talloc_tos(), num
, share_entry
) ));
792 str
= talloc_asprintf(talloc_tos(),
793 "validate_my_share_entries: "
794 "file %s, oplock_type = 0x%x, op_type = 0x%x\n",
795 fsp
->fsp_name
->base_name
,
796 (unsigned int)fsp
->oplock_type
,
797 (unsigned int)share_entry
->op_type
);
803 bool is_stat_open(uint32 access_mask
)
805 return (access_mask
&&
806 ((access_mask
& ~(SYNCHRONIZE_ACCESS
| FILE_READ_ATTRIBUTES
|
807 FILE_WRITE_ATTRIBUTES
))==0) &&
808 ((access_mask
& (SYNCHRONIZE_ACCESS
|FILE_READ_ATTRIBUTES
|
809 FILE_WRITE_ATTRIBUTES
)) != 0));
812 /****************************************************************************
813 Deal with share modes
814 Invarient: Share mode must be locked on entry and exit.
815 Returns -1 on error, or number of share modes on success (may be zero).
816 ****************************************************************************/
818 static NTSTATUS
open_mode_check(connection_struct
*conn
,
819 struct share_mode_lock
*lck
,
822 uint32 create_options
,
827 if(lck
->num_share_modes
== 0) {
831 *file_existed
= True
;
833 /* A delete on close prohibits everything */
835 if (lck
->delete_on_close
) {
836 return NT_STATUS_DELETE_PENDING
;
839 if (is_stat_open(access_mask
)) {
840 /* Stat open that doesn't trigger oplock breaks or share mode
841 * checks... ! JRA. */
846 * Check if the share modes will give us access.
849 #if defined(DEVELOPER)
850 for(i
= 0; i
< lck
->num_share_modes
; i
++) {
851 validate_my_share_entries(i
, &lck
->share_modes
[i
]);
855 if (!lp_share_modes(SNUM(conn
))) {
859 /* Now we check the share modes, after any oplock breaks. */
860 for(i
= 0; i
< lck
->num_share_modes
; i
++) {
862 if (!is_valid_share_mode_entry(&lck
->share_modes
[i
])) {
866 /* someone else has a share lock on it, check to see if we can
868 if (share_conflict(&lck
->share_modes
[i
],
869 access_mask
, share_access
)) {
870 return NT_STATUS_SHARING_VIOLATION
;
877 static bool is_delete_request(files_struct
*fsp
) {
878 return ((fsp
->access_mask
== DELETE_ACCESS
) &&
879 (fsp
->oplock_type
== NO_OPLOCK
));
883 * Send a break message to the oplock holder and delay the open for
887 static NTSTATUS
send_break_message(files_struct
*fsp
,
888 struct share_mode_entry
*exclusive
,
893 char msg
[MSG_SMB_SHARE_MODE_ENTRY_SIZE
];
895 DEBUG(10, ("Sending break request to PID %s\n",
896 procid_str_static(&exclusive
->pid
)));
897 exclusive
->op_mid
= mid
;
899 /* Create the message. */
900 share_mode_entry_to_message(msg
, exclusive
);
902 /* Add in the FORCE_OPLOCK_BREAK_TO_NONE bit in the message if set. We
903 don't want this set in the share mode struct pointed to by lck. */
905 if (oplock_request
& FORCE_OPLOCK_BREAK_TO_NONE
) {
906 SSVAL(msg
,6,exclusive
->op_type
| FORCE_OPLOCK_BREAK_TO_NONE
);
909 status
= messaging_send_buf(smbd_messaging_context(), exclusive
->pid
,
910 MSG_SMB_BREAK_REQUEST
,
912 MSG_SMB_SHARE_MODE_ENTRY_SIZE
);
913 if (!NT_STATUS_IS_OK(status
)) {
914 DEBUG(3, ("Could not send oplock break message: %s\n",
922 * 1) No files open at all or internal open: Grant whatever the client wants.
924 * 2) Exclusive (or batch) oplock around: If the requested access is a delete
925 * request, break if the oplock around is a batch oplock. If it's another
926 * requested access type, break.
928 * 3) Only level2 around: Grant level2 and do nothing else.
931 static bool delay_for_oplocks(struct share_mode_lock
*lck
,
938 struct share_mode_entry
*exclusive
= NULL
;
939 bool valid_entry
= false;
940 bool have_level2
= false;
941 bool have_a_none_oplock
= false;
942 bool allow_level2
= (global_client_caps
& CAP_LEVEL_II_OPLOCKS
) &&
943 lp_level2_oplocks(SNUM(fsp
->conn
));
945 if (oplock_request
& INTERNAL_OPEN_ONLY
) {
946 fsp
->oplock_type
= NO_OPLOCK
;
949 if ((oplock_request
& INTERNAL_OPEN_ONLY
) || is_stat_open(fsp
->access_mask
)) {
953 for (i
=0; i
<lck
->num_share_modes
; i
++) {
955 if (!is_valid_share_mode_entry(&lck
->share_modes
[i
])) {
959 /* At least one entry is not an invalid or deferred entry. */
962 if (pass_number
== 1) {
963 if (BATCH_OPLOCK_TYPE(lck
->share_modes
[i
].op_type
)) {
964 SMB_ASSERT(exclusive
== NULL
);
965 exclusive
= &lck
->share_modes
[i
];
968 if (EXCLUSIVE_OPLOCK_TYPE(lck
->share_modes
[i
].op_type
)) {
969 SMB_ASSERT(exclusive
== NULL
);
970 exclusive
= &lck
->share_modes
[i
];
974 if (LEVEL_II_OPLOCK_TYPE(lck
->share_modes
[i
].op_type
)) {
975 SMB_ASSERT(exclusive
== NULL
);
979 if (lck
->share_modes
[i
].op_type
== NO_OPLOCK
) {
980 have_a_none_oplock
= true;
984 if (exclusive
!= NULL
) { /* Found an exclusive oplock */
985 bool delay_it
= is_delete_request(fsp
) ?
986 BATCH_OPLOCK_TYPE(exclusive
->op_type
) : true;
987 SMB_ASSERT(!have_level2
);
989 send_break_message(fsp
, exclusive
, mid
, oplock_request
);
995 * Match what was requested (fsp->oplock_type) with
996 * what was found in the existing share modes.
1000 /* All entries are placeholders or deferred.
1001 * Directly grant whatever the client wants. */
1002 if (fsp
->oplock_type
== NO_OPLOCK
) {
1003 /* Store a level2 oplock, but don't tell the client */
1004 fsp
->oplock_type
= FAKE_LEVEL_II_OPLOCK
;
1006 } else if (have_a_none_oplock
) {
1007 fsp
->oplock_type
= NO_OPLOCK
;
1008 } else if (have_level2
) {
1009 if (fsp
->oplock_type
== NO_OPLOCK
||
1010 fsp
->oplock_type
== FAKE_LEVEL_II_OPLOCK
) {
1011 /* Store a level2 oplock, but don't tell the client */
1012 fsp
->oplock_type
= FAKE_LEVEL_II_OPLOCK
;
1014 fsp
->oplock_type
= LEVEL_II_OPLOCK
;
1017 /* This case can never happen. */
1022 * Don't grant level2 to clients that don't want them
1023 * or if we've turned them off.
1025 if (fsp
->oplock_type
== LEVEL_II_OPLOCK
&& !allow_level2
) {
1026 fsp
->oplock_type
= FAKE_LEVEL_II_OPLOCK
;
1029 DEBUG(10,("delay_for_oplocks: oplock type 0x%x on file %s\n",
1030 fsp
->oplock_type
, fsp_str_dbg(fsp
)));
1036 bool request_timed_out(struct timeval request_time
,
1037 struct timeval timeout
)
1039 struct timeval now
, end_time
;
1041 end_time
= timeval_sum(&request_time
, &timeout
);
1042 return (timeval_compare(&end_time
, &now
) < 0);
1045 /****************************************************************************
1046 Handle the 1 second delay in returning a SHARING_VIOLATION error.
1047 ****************************************************************************/
1049 static void defer_open(struct share_mode_lock
*lck
,
1050 struct timeval request_time
,
1051 struct timeval timeout
,
1052 struct smb_request
*req
,
1053 struct deferred_open_record
*state
)
1057 /* Paranoia check */
1059 for (i
=0; i
<lck
->num_share_modes
; i
++) {
1060 struct share_mode_entry
*e
= &lck
->share_modes
[i
];
1062 if (!is_deferred_open_entry(e
)) {
1066 if (procid_is_me(&e
->pid
) && (e
->op_mid
== req
->mid
)) {
1067 DEBUG(0, ("Trying to defer an already deferred "
1068 "request: mid=%d, exiting\n", req
->mid
));
1069 exit_server("attempt to defer a deferred request");
1073 /* End paranoia check */
1075 DEBUG(10,("defer_open_sharing_error: time [%u.%06u] adding deferred "
1076 "open entry for mid %u\n",
1077 (unsigned int)request_time
.tv_sec
,
1078 (unsigned int)request_time
.tv_usec
,
1079 (unsigned int)req
->mid
));
1081 if (!push_deferred_smb_message(req
, request_time
, timeout
,
1082 (char *)state
, sizeof(*state
))) {
1083 exit_server("push_deferred_smb_message failed");
1085 add_deferred_open(lck
, req
->mid
, request_time
, state
->id
);
1089 /****************************************************************************
1090 On overwrite open ensure that the attributes match.
1091 ****************************************************************************/
1093 bool open_match_attributes(connection_struct
*conn
,
1094 uint32 old_dos_attr
,
1095 uint32 new_dos_attr
,
1096 mode_t existing_unx_mode
,
1097 mode_t new_unx_mode
,
1098 mode_t
*returned_unx_mode
)
1100 uint32 noarch_old_dos_attr
, noarch_new_dos_attr
;
1102 noarch_old_dos_attr
= (old_dos_attr
& ~FILE_ATTRIBUTE_ARCHIVE
);
1103 noarch_new_dos_attr
= (new_dos_attr
& ~FILE_ATTRIBUTE_ARCHIVE
);
1105 if((noarch_old_dos_attr
== 0 && noarch_new_dos_attr
!= 0) ||
1106 (noarch_old_dos_attr
!= 0 && ((noarch_old_dos_attr
& noarch_new_dos_attr
) == noarch_old_dos_attr
))) {
1107 *returned_unx_mode
= new_unx_mode
;
1109 *returned_unx_mode
= (mode_t
)0;
1112 DEBUG(10,("open_match_attributes: old_dos_attr = 0x%x, "
1113 "existing_unx_mode = 0%o, new_dos_attr = 0x%x "
1114 "returned_unx_mode = 0%o\n",
1115 (unsigned int)old_dos_attr
,
1116 (unsigned int)existing_unx_mode
,
1117 (unsigned int)new_dos_attr
,
1118 (unsigned int)*returned_unx_mode
));
1120 /* If we're mapping SYSTEM and HIDDEN ensure they match. */
1121 if (lp_map_system(SNUM(conn
)) || lp_store_dos_attributes(SNUM(conn
))) {
1122 if ((old_dos_attr
& FILE_ATTRIBUTE_SYSTEM
) &&
1123 !(new_dos_attr
& FILE_ATTRIBUTE_SYSTEM
)) {
1127 if (lp_map_hidden(SNUM(conn
)) || lp_store_dos_attributes(SNUM(conn
))) {
1128 if ((old_dos_attr
& FILE_ATTRIBUTE_HIDDEN
) &&
1129 !(new_dos_attr
& FILE_ATTRIBUTE_HIDDEN
)) {
1136 /****************************************************************************
1137 Special FCB or DOS processing in the case of a sharing violation.
1138 Try and find a duplicated file handle.
1139 ****************************************************************************/
1141 NTSTATUS
fcb_or_dos_open(struct smb_request
*req
,
1142 connection_struct
*conn
,
1143 files_struct
*fsp_to_dup_into
,
1144 const struct smb_filename
*smb_fname
,
1149 uint32 share_access
,
1150 uint32 create_options
)
1154 DEBUG(5,("fcb_or_dos_open: attempting old open semantics for "
1155 "file %s.\n", smb_fname_str_dbg(smb_fname
)));
1157 for(fsp
= file_find_di_first(id
); fsp
;
1158 fsp
= file_find_di_next(fsp
)) {
1160 DEBUG(10,("fcb_or_dos_open: checking file %s, fd = %d, "
1161 "vuid = %u, file_pid = %u, private_options = 0x%x "
1162 "access_mask = 0x%x\n", fsp_str_dbg(fsp
),
1163 fsp
->fh
->fd
, (unsigned int)fsp
->vuid
,
1164 (unsigned int)fsp
->file_pid
,
1165 (unsigned int)fsp
->fh
->private_options
,
1166 (unsigned int)fsp
->access_mask
));
1168 if (fsp
->fh
->fd
!= -1 &&
1169 fsp
->vuid
== vuid
&&
1170 fsp
->file_pid
== file_pid
&&
1171 (fsp
->fh
->private_options
& (NTCREATEX_OPTIONS_PRIVATE_DENY_DOS
|
1172 NTCREATEX_OPTIONS_PRIVATE_DENY_FCB
)) &&
1173 (fsp
->access_mask
& FILE_WRITE_DATA
) &&
1174 strequal(fsp
->fsp_name
->base_name
, smb_fname
->base_name
) &&
1175 strequal(fsp
->fsp_name
->stream_name
,
1176 smb_fname
->stream_name
)) {
1177 DEBUG(10,("fcb_or_dos_open: file match\n"));
1183 return NT_STATUS_NOT_FOUND
;
1186 /* quite an insane set of semantics ... */
1187 if (is_executable(smb_fname
->base_name
) &&
1188 (fsp
->fh
->private_options
& NTCREATEX_OPTIONS_PRIVATE_DENY_DOS
)) {
1189 DEBUG(10,("fcb_or_dos_open: file fail due to is_executable.\n"));
1190 return NT_STATUS_INVALID_PARAMETER
;
1193 /* We need to duplicate this fsp. */
1194 return dup_file_fsp(req
, fsp
, access_mask
, share_access
,
1195 create_options
, fsp_to_dup_into
);
1198 /****************************************************************************
1199 Open a file with a share mode - old openX method - map into NTCreate.
1200 ****************************************************************************/
1202 bool map_open_params_to_ntcreate(const struct smb_filename
*smb_fname
,
1203 int deny_mode
, int open_func
,
1204 uint32
*paccess_mask
,
1205 uint32
*pshare_mode
,
1206 uint32
*pcreate_disposition
,
1207 uint32
*pcreate_options
)
1211 uint32 create_disposition
;
1212 uint32 create_options
= FILE_NON_DIRECTORY_FILE
;
1214 DEBUG(10,("map_open_params_to_ntcreate: fname = %s, deny_mode = 0x%x, "
1215 "open_func = 0x%x\n",
1216 smb_fname_str_dbg(smb_fname
), (unsigned int)deny_mode
,
1217 (unsigned int)open_func
));
1219 /* Create the NT compatible access_mask. */
1220 switch (GET_OPENX_MODE(deny_mode
)) {
1221 case DOS_OPEN_EXEC
: /* Implies read-only - used to be FILE_READ_DATA */
1222 case DOS_OPEN_RDONLY
:
1223 access_mask
= FILE_GENERIC_READ
;
1225 case DOS_OPEN_WRONLY
:
1226 access_mask
= FILE_GENERIC_WRITE
;
1230 access_mask
= FILE_GENERIC_READ
|FILE_GENERIC_WRITE
;
1233 DEBUG(10,("map_open_params_to_ntcreate: bad open mode = 0x%x\n",
1234 (unsigned int)GET_OPENX_MODE(deny_mode
)));
1238 /* Create the NT compatible create_disposition. */
1239 switch (open_func
) {
1240 case OPENX_FILE_EXISTS_FAIL
|OPENX_FILE_CREATE_IF_NOT_EXIST
:
1241 create_disposition
= FILE_CREATE
;
1244 case OPENX_FILE_EXISTS_OPEN
:
1245 create_disposition
= FILE_OPEN
;
1248 case OPENX_FILE_EXISTS_OPEN
|OPENX_FILE_CREATE_IF_NOT_EXIST
:
1249 create_disposition
= FILE_OPEN_IF
;
1252 case OPENX_FILE_EXISTS_TRUNCATE
:
1253 create_disposition
= FILE_OVERWRITE
;
1256 case OPENX_FILE_EXISTS_TRUNCATE
|OPENX_FILE_CREATE_IF_NOT_EXIST
:
1257 create_disposition
= FILE_OVERWRITE_IF
;
1261 /* From samba4 - to be confirmed. */
1262 if (GET_OPENX_MODE(deny_mode
) == DOS_OPEN_EXEC
) {
1263 create_disposition
= FILE_CREATE
;
1266 DEBUG(10,("map_open_params_to_ntcreate: bad "
1267 "open_func 0x%x\n", (unsigned int)open_func
));
1271 /* Create the NT compatible share modes. */
1272 switch (GET_DENY_MODE(deny_mode
)) {
1274 share_mode
= FILE_SHARE_NONE
;
1278 share_mode
= FILE_SHARE_READ
;
1282 share_mode
= FILE_SHARE_WRITE
;
1286 share_mode
= FILE_SHARE_READ
|FILE_SHARE_WRITE
;
1290 create_options
|= NTCREATEX_OPTIONS_PRIVATE_DENY_DOS
;
1291 if (is_executable(smb_fname
->base_name
)) {
1292 share_mode
= FILE_SHARE_READ
|FILE_SHARE_WRITE
;
1294 if (GET_OPENX_MODE(deny_mode
) == DOS_OPEN_RDONLY
) {
1295 share_mode
= FILE_SHARE_READ
;
1297 share_mode
= FILE_SHARE_NONE
;
1303 create_options
|= NTCREATEX_OPTIONS_PRIVATE_DENY_FCB
;
1304 share_mode
= FILE_SHARE_NONE
;
1308 DEBUG(10,("map_open_params_to_ntcreate: bad deny_mode 0x%x\n",
1309 (unsigned int)GET_DENY_MODE(deny_mode
) ));
1313 DEBUG(10,("map_open_params_to_ntcreate: file %s, access_mask = 0x%x, "
1314 "share_mode = 0x%x, create_disposition = 0x%x, "
1315 "create_options = 0x%x\n",
1316 smb_fname_str_dbg(smb_fname
),
1317 (unsigned int)access_mask
,
1318 (unsigned int)share_mode
,
1319 (unsigned int)create_disposition
,
1320 (unsigned int)create_options
));
1323 *paccess_mask
= access_mask
;
1326 *pshare_mode
= share_mode
;
1328 if (pcreate_disposition
) {
1329 *pcreate_disposition
= create_disposition
;
1331 if (pcreate_options
) {
1332 *pcreate_options
= create_options
;
1339 static void schedule_defer_open(struct share_mode_lock
*lck
,
1340 struct timeval request_time
,
1341 struct smb_request
*req
)
1343 struct deferred_open_record state
;
1345 /* This is a relative time, added to the absolute
1346 request_time value to get the absolute timeout time.
1347 Note that if this is the second or greater time we enter
1348 this codepath for this particular request mid then
1349 request_time is left as the absolute time of the *first*
1350 time this request mid was processed. This is what allows
1351 the request to eventually time out. */
1353 struct timeval timeout
;
1355 /* Normally the smbd we asked should respond within
1356 * OPLOCK_BREAK_TIMEOUT seconds regardless of whether
1357 * the client did, give twice the timeout as a safety
1358 * measure here in case the other smbd is stuck
1359 * somewhere else. */
1361 timeout
= timeval_set(OPLOCK_BREAK_TIMEOUT
*2, 0);
1363 /* Nothing actually uses state.delayed_for_oplocks
1364 but it's handy to differentiate in debug messages
1365 between a 30 second delay due to oplock break, and
1366 a 1 second delay for share mode conflicts. */
1368 state
.delayed_for_oplocks
= True
;
1371 if (!request_timed_out(request_time
, timeout
)) {
1372 defer_open(lck
, request_time
, timeout
, req
, &state
);
1376 /****************************************************************************
1377 Work out what access_mask to use from what the client sent us.
1378 ****************************************************************************/
1380 static NTSTATUS
calculate_access_mask(connection_struct
*conn
,
1381 const struct smb_filename
*smb_fname
,
1383 uint32_t access_mask
,
1384 uint32_t *access_mask_out
)
1389 * Convert GENERIC bits to specific bits.
1392 se_map_generic(&access_mask
, &file_generic_mapping
);
1394 /* Calculate MAXIMUM_ALLOWED_ACCESS if requested. */
1395 if (access_mask
& MAXIMUM_ALLOWED_ACCESS
) {
1398 struct security_descriptor
*sd
;
1399 uint32_t access_granted
= 0;
1401 status
= SMB_VFS_GET_NT_ACL(conn
, smb_fname
->base_name
,
1402 (OWNER_SECURITY_INFORMATION
|
1403 GROUP_SECURITY_INFORMATION
|
1404 DACL_SECURITY_INFORMATION
),&sd
);
1406 if (!NT_STATUS_IS_OK(status
)) {
1407 DEBUG(10, ("calculate_access_mask: Could not get acl "
1409 smb_fname_str_dbg(smb_fname
),
1410 nt_errstr(status
)));
1411 return NT_STATUS_ACCESS_DENIED
;
1414 status
= smb1_file_se_access_check(sd
,
1415 conn
->server_info
->ptok
,
1421 if (!NT_STATUS_IS_OK(status
)) {
1422 DEBUG(10, ("calculate_access_mask: Access denied on "
1423 "file %s: when calculating maximum access\n",
1424 smb_fname_str_dbg(smb_fname
)));
1425 return NT_STATUS_ACCESS_DENIED
;
1428 access_mask
= access_granted
;
1430 access_mask
= FILE_GENERIC_ALL
;
1434 *access_mask_out
= access_mask
;
1435 return NT_STATUS_OK
;
1438 /****************************************************************************
1439 Open a file with a share mode. Passed in an already created files_struct *.
1440 ****************************************************************************/
1442 static NTSTATUS
open_file_ntcreate(connection_struct
*conn
,
1443 struct smb_request
*req
,
1444 struct smb_filename
*smb_fname
,
1445 uint32 access_mask
, /* access bits (FILE_READ_DATA etc.) */
1446 uint32 share_access
, /* share constants (FILE_SHARE_READ etc) */
1447 uint32 create_disposition
, /* FILE_OPEN_IF etc. */
1448 uint32 create_options
, /* options such as delete on close. */
1449 uint32 new_dos_attributes
, /* attributes used for new file. */
1450 int oplock_request
, /* internal Samba oplock codes. */
1451 /* Information (FILE_EXISTS etc.) */
1457 bool file_existed
= VALID_STAT(smb_fname
->st
);
1458 bool def_acl
= False
;
1459 bool posix_open
= False
;
1460 bool new_file_created
= False
;
1461 bool clear_ads
= false;
1463 NTSTATUS fsp_open
= NT_STATUS_ACCESS_DENIED
;
1464 mode_t new_unx_mode
= (mode_t
)0;
1465 mode_t unx_mode
= (mode_t
)0;
1467 uint32 existing_dos_attributes
= 0;
1468 struct pending_message_list
*pml
= NULL
;
1469 struct timeval request_time
= timeval_zero();
1470 struct share_mode_lock
*lck
= NULL
;
1471 uint32 open_access_mask
= access_mask
;
1478 if (conn
->printer
) {
1480 * Printers are handled completely differently.
1481 * Most of the passed parameters are ignored.
1485 *pinfo
= FILE_WAS_CREATED
;
1488 DEBUG(10, ("open_file_ntcreate: printer open fname=%s\n",
1489 smb_fname_str_dbg(smb_fname
)));
1492 DEBUG(0,("open_file_ntcreate: printer open without "
1493 "an SMB request!\n"));
1494 return NT_STATUS_INTERNAL_ERROR
;
1497 return print_fsp_open(req
, conn
, smb_fname
->base_name
,
1498 req
->vuid
, fsp
, &smb_fname
->st
);
1501 if (!parent_dirname(talloc_tos(), smb_fname
->base_name
, &parent_dir
,
1503 return NT_STATUS_NO_MEMORY
;
1506 if (new_dos_attributes
& FILE_FLAG_POSIX_SEMANTICS
) {
1508 unx_mode
= (mode_t
)(new_dos_attributes
& ~FILE_FLAG_POSIX_SEMANTICS
);
1509 new_dos_attributes
= 0;
1511 /* We add aARCH to this as this mode is only used if the file is
1513 unx_mode
= unix_mode(conn
, new_dos_attributes
| aARCH
,
1514 smb_fname
, parent_dir
);
1517 DEBUG(10, ("open_file_ntcreate: fname=%s, dos_attrs=0x%x "
1518 "access_mask=0x%x share_access=0x%x "
1519 "create_disposition = 0x%x create_options=0x%x "
1520 "unix mode=0%o oplock_request=%d\n",
1521 smb_fname_str_dbg(smb_fname
), new_dos_attributes
,
1522 access_mask
, share_access
, create_disposition
,
1523 create_options
, (unsigned int)unx_mode
, oplock_request
));
1525 if ((req
== NULL
) && ((oplock_request
& INTERNAL_OPEN_ONLY
) == 0)) {
1526 DEBUG(0, ("No smb request but not an internal only open!\n"));
1527 return NT_STATUS_INTERNAL_ERROR
;
1531 * Only non-internal opens can be deferred at all
1535 && ((pml
= get_open_deferred_message(req
->mid
)) != NULL
)) {
1536 struct deferred_open_record
*state
=
1537 (struct deferred_open_record
*)pml
->private_data
.data
;
1539 /* Remember the absolute time of the original
1540 request with this mid. We'll use it later to
1541 see if this has timed out. */
1543 request_time
= pml
->request_time
;
1545 /* Remove the deferred open entry under lock. */
1546 lck
= get_share_mode_lock(talloc_tos(), state
->id
, NULL
, NULL
,
1549 DEBUG(0, ("could not get share mode lock\n"));
1551 del_deferred_open_entry(lck
, req
->mid
);
1555 /* Ensure we don't reprocess this message. */
1556 remove_deferred_open_smb_message(req
->mid
);
1559 status
= check_name(conn
, smb_fname
->base_name
);
1560 if (!NT_STATUS_IS_OK(status
)) {
1565 new_dos_attributes
&= SAMBA_ATTRIBUTES_MASK
;
1567 existing_dos_attributes
= dos_mode(conn
, smb_fname
);
1571 /* ignore any oplock requests if oplocks are disabled */
1572 if (!lp_oplocks(SNUM(conn
)) || global_client_failed_oplock_break
||
1573 IS_VETO_OPLOCK_PATH(conn
, smb_fname
->base_name
)) {
1574 /* Mask off everything except the private Samba bits. */
1575 oplock_request
&= SAMBA_PRIVATE_OPLOCK_MASK
;
1578 /* this is for OS/2 long file names - say we don't support them */
1579 if (!lp_posix_pathnames() && strstr(smb_fname
->base_name
,".+,;=[].")) {
1580 /* OS/2 Workplace shell fix may be main code stream in a later
1582 DEBUG(5,("open_file_ntcreate: OS/2 long filenames are not "
1584 if (use_nt_status()) {
1585 return NT_STATUS_OBJECT_NAME_NOT_FOUND
;
1587 return NT_STATUS_DOS(ERRDOS
, ERRcannotopen
);
1590 switch( create_disposition
) {
1592 * Currently we're using FILE_SUPERSEDE as the same as
1593 * FILE_OVERWRITE_IF but they really are
1594 * different. FILE_SUPERSEDE deletes an existing file
1595 * (requiring delete access) then recreates it.
1597 case FILE_SUPERSEDE
:
1598 /* If file exists replace/overwrite. If file doesn't
1600 flags2
|= (O_CREAT
| O_TRUNC
);
1604 case FILE_OVERWRITE_IF
:
1605 /* If file exists replace/overwrite. If file doesn't
1607 flags2
|= (O_CREAT
| O_TRUNC
);
1612 /* If file exists open. If file doesn't exist error. */
1613 if (!file_existed
) {
1614 DEBUG(5,("open_file_ntcreate: FILE_OPEN "
1615 "requested for file %s and file "
1617 smb_fname_str_dbg(smb_fname
)));
1619 return NT_STATUS_OBJECT_NAME_NOT_FOUND
;
1623 case FILE_OVERWRITE
:
1624 /* If file exists overwrite. If file doesn't exist
1626 if (!file_existed
) {
1627 DEBUG(5,("open_file_ntcreate: FILE_OVERWRITE "
1628 "requested for file %s and file "
1630 smb_fname_str_dbg(smb_fname
) ));
1632 return NT_STATUS_OBJECT_NAME_NOT_FOUND
;
1639 /* If file exists error. If file doesn't exist
1642 DEBUG(5,("open_file_ntcreate: FILE_CREATE "
1643 "requested for file %s and file "
1644 "already exists.\n",
1645 smb_fname_str_dbg(smb_fname
)));
1646 if (S_ISDIR(smb_fname
->st
.st_ex_mode
)) {
1651 return map_nt_error_from_unix(errno
);
1653 flags2
|= (O_CREAT
|O_EXCL
);
1657 /* If file exists open. If file doesn't exist
1663 return NT_STATUS_INVALID_PARAMETER
;
1666 /* We only care about matching attributes on file exists and
1669 if (!posix_open
&& file_existed
&& ((create_disposition
== FILE_OVERWRITE
) ||
1670 (create_disposition
== FILE_OVERWRITE_IF
))) {
1671 if (!open_match_attributes(conn
, existing_dos_attributes
,
1673 smb_fname
->st
.st_ex_mode
,
1674 unx_mode
, &new_unx_mode
)) {
1675 DEBUG(5,("open_file_ntcreate: attributes missmatch "
1676 "for file %s (%x %x) (0%o, 0%o)\n",
1677 smb_fname_str_dbg(smb_fname
),
1678 existing_dos_attributes
,
1680 (unsigned int)smb_fname
->st
.st_ex_mode
,
1681 (unsigned int)unx_mode
));
1683 return NT_STATUS_ACCESS_DENIED
;
1687 status
= calculate_access_mask(conn
, smb_fname
, file_existed
,
1690 if (!NT_STATUS_IS_OK(status
)) {
1691 DEBUG(10, ("open_file_ntcreate: calculate_access_mask "
1692 "on file %s returned %s\n",
1693 smb_fname_str_dbg(smb_fname
), nt_errstr(status
)));
1697 open_access_mask
= access_mask
;
1699 if ((flags2
& O_TRUNC
) || (oplock_request
& FORCE_OPLOCK_BREAK_TO_NONE
)) {
1700 open_access_mask
|= FILE_WRITE_DATA
; /* This will cause oplock breaks. */
1703 DEBUG(10, ("open_file_ntcreate: fname=%s, after mapping "
1704 "access_mask=0x%x\n", smb_fname_str_dbg(smb_fname
),
1708 * Note that we ignore the append flag as append does not
1709 * mean the same thing under DOS and Unix.
1712 if ((access_mask
& (FILE_WRITE_DATA
| FILE_APPEND_DATA
)) ||
1713 (oplock_request
& FORCE_OPLOCK_BREAK_TO_NONE
)) {
1714 /* DENY_DOS opens are always underlying read-write on the
1715 file handle, no matter what the requested access mask
1717 if ((create_options
& NTCREATEX_OPTIONS_PRIVATE_DENY_DOS
) ||
1718 access_mask
& (FILE_READ_ATTRIBUTES
|FILE_READ_DATA
|FILE_READ_EA
|FILE_EXECUTE
)) {
1728 * Currently we only look at FILE_WRITE_THROUGH for create options.
1732 if ((create_options
& FILE_WRITE_THROUGH
) && lp_strict_sync(SNUM(conn
))) {
1737 if (posix_open
&& (access_mask
& FILE_APPEND_DATA
)) {
1741 if (!posix_open
&& !CAN_WRITE(conn
)) {
1743 * We should really return a permission denied error if either
1744 * O_CREAT or O_TRUNC are set, but for compatibility with
1745 * older versions of Samba we just AND them out.
1747 flags2
&= ~(O_CREAT
|O_TRUNC
);
1751 * Ensure we can't write on a read-only share or file.
1754 if (flags
!= O_RDONLY
&& file_existed
&&
1755 (!CAN_WRITE(conn
) || IS_DOS_READONLY(existing_dos_attributes
))) {
1756 DEBUG(5,("open_file_ntcreate: write access requested for "
1757 "file %s on read only %s\n",
1758 smb_fname_str_dbg(smb_fname
),
1759 !CAN_WRITE(conn
) ? "share" : "file" ));
1761 return NT_STATUS_ACCESS_DENIED
;
1764 fsp
->file_id
= vfs_file_id_from_sbuf(conn
, &smb_fname
->st
);
1765 fsp
->share_access
= share_access
;
1766 fsp
->fh
->private_options
= create_options
;
1767 fsp
->access_mask
= open_access_mask
; /* We change this to the
1768 * requested access_mask after
1769 * the open is done. */
1770 fsp
->posix_open
= posix_open
;
1772 /* Ensure no SAMBA_PRIVATE bits can be set. */
1773 fsp
->oplock_type
= (oplock_request
& ~SAMBA_PRIVATE_OPLOCK_MASK
);
1775 if (timeval_is_zero(&request_time
)) {
1776 request_time
= fsp
->open_time
;
1780 struct timespec old_write_time
= smb_fname
->st
.st_ex_mtime
;
1781 id
= vfs_file_id_from_sbuf(conn
, &smb_fname
->st
);
1783 lck
= get_share_mode_lock(talloc_tos(), id
,
1785 smb_fname
, &old_write_time
);
1788 DEBUG(0, ("Could not get share mode lock\n"));
1789 return NT_STATUS_SHARING_VIOLATION
;
1792 /* First pass - send break only on batch oplocks. */
1794 && delay_for_oplocks(lck
, fsp
, req
->mid
, 1,
1796 schedule_defer_open(lck
, request_time
, req
);
1798 return NT_STATUS_SHARING_VIOLATION
;
1801 /* Use the client requested access mask here, not the one we
1803 status
= open_mode_check(conn
, lck
, access_mask
, share_access
,
1804 create_options
, &file_existed
);
1806 if (NT_STATUS_IS_OK(status
)) {
1807 /* We might be going to allow this open. Check oplock
1809 /* Second pass - send break for both batch or
1810 * exclusive oplocks. */
1812 && delay_for_oplocks(lck
, fsp
, req
->mid
, 2,
1814 schedule_defer_open(lck
, request_time
, req
);
1816 return NT_STATUS_SHARING_VIOLATION
;
1820 if (NT_STATUS_EQUAL(status
, NT_STATUS_DELETE_PENDING
)) {
1821 /* DELETE_PENDING is not deferred for a second */
1826 if (!NT_STATUS_IS_OK(status
)) {
1827 uint32 can_access_mask
;
1828 bool can_access
= True
;
1830 SMB_ASSERT(NT_STATUS_EQUAL(status
, NT_STATUS_SHARING_VIOLATION
));
1832 /* Check if this can be done with the deny_dos and fcb
1834 if (create_options
&
1835 (NTCREATEX_OPTIONS_PRIVATE_DENY_DOS
|
1836 NTCREATEX_OPTIONS_PRIVATE_DENY_FCB
)) {
1838 DEBUG(0, ("DOS open without an SMB "
1841 return NT_STATUS_INTERNAL_ERROR
;
1844 /* Use the client requested access mask here,
1845 * not the one we open with. */
1846 status
= fcb_or_dos_open(req
,
1857 if (NT_STATUS_IS_OK(status
)) {
1860 *pinfo
= FILE_WAS_OPENED
;
1862 return NT_STATUS_OK
;
1867 * This next line is a subtlety we need for
1868 * MS-Access. If a file open will fail due to share
1869 * permissions and also for security (access) reasons,
1870 * we need to return the access failed error, not the
1871 * share error. We can't open the file due to kernel
1872 * oplock deadlock (it's possible we failed above on
1873 * the open_mode_check()) so use a userspace check.
1876 if (flags
& O_RDWR
) {
1877 can_access_mask
= FILE_READ_DATA
|FILE_WRITE_DATA
;
1878 } else if (flags
& O_WRONLY
) {
1879 can_access_mask
= FILE_WRITE_DATA
;
1881 can_access_mask
= FILE_READ_DATA
;
1884 if (((can_access_mask
& FILE_WRITE_DATA
) &&
1885 !CAN_WRITE(conn
)) ||
1886 !can_access_file_data(conn
, smb_fname
,
1892 * If we're returning a share violation, ensure we
1893 * cope with the braindead 1 second delay.
1896 if (!(oplock_request
& INTERNAL_OPEN_ONLY
) &&
1897 lp_defer_sharing_violations()) {
1898 struct timeval timeout
;
1899 struct deferred_open_record state
;
1902 /* this is a hack to speed up torture tests
1904 timeout_usecs
= lp_parm_int(SNUM(conn
),
1905 "smbd","sharedelay",
1906 SHARING_VIOLATION_USEC_WAIT
);
1908 /* This is a relative time, added to the absolute
1909 request_time value to get the absolute timeout time.
1910 Note that if this is the second or greater time we enter
1911 this codepath for this particular request mid then
1912 request_time is left as the absolute time of the *first*
1913 time this request mid was processed. This is what allows
1914 the request to eventually time out. */
1916 timeout
= timeval_set(0, timeout_usecs
);
1918 /* Nothing actually uses state.delayed_for_oplocks
1919 but it's handy to differentiate in debug messages
1920 between a 30 second delay due to oplock break, and
1921 a 1 second delay for share mode conflicts. */
1923 state
.delayed_for_oplocks
= False
;
1927 && !request_timed_out(request_time
,
1929 defer_open(lck
, request_time
, timeout
,
1937 * We have detected a sharing violation here
1938 * so return the correct error code
1940 status
= NT_STATUS_SHARING_VIOLATION
;
1942 status
= NT_STATUS_ACCESS_DENIED
;
1948 * We exit this block with the share entry *locked*.....
1952 SMB_ASSERT(!file_existed
|| (lck
!= NULL
));
1955 * Ensure we pay attention to default ACLs on directories if required.
1958 if ((flags2
& O_CREAT
) && lp_inherit_acls(SNUM(conn
)) &&
1959 (def_acl
= directory_has_default_acl(conn
, parent_dir
))) {
1963 DEBUG(4,("calling open_file with flags=0x%X flags2=0x%X mode=0%o, "
1964 "access_mask = 0x%x, open_access_mask = 0x%x\n",
1965 (unsigned int)flags
, (unsigned int)flags2
,
1966 (unsigned int)unx_mode
, (unsigned int)access_mask
,
1967 (unsigned int)open_access_mask
));
1970 * open_file strips any O_TRUNC flags itself.
1973 fsp_open
= open_file(fsp
, conn
, req
, parent_dir
, smb_fname
,
1974 flags
|flags2
, unx_mode
, access_mask
,
1977 if (!NT_STATUS_IS_OK(fsp_open
)) {
1984 if (!file_existed
) {
1985 struct timespec old_write_time
= smb_fname
->st
.st_ex_mtime
;
1987 * Deal with the race condition where two smbd's detect the
1988 * file doesn't exist and do the create at the same time. One
1989 * of them will win and set a share mode, the other (ie. this
1990 * one) should check if the requested share mode for this
1991 * create is allowed.
1995 * Now the file exists and fsp is successfully opened,
1996 * fsp->dev and fsp->inode are valid and should replace the
1997 * dev=0,inode=0 from a non existent file. Spotted by
1998 * Nadav Danieli <nadavd@exanet.com>. JRA.
2003 lck
= get_share_mode_lock(talloc_tos(), id
,
2005 smb_fname
, &old_write_time
);
2008 DEBUG(0, ("open_file_ntcreate: Could not get share "
2009 "mode lock for %s\n",
2010 smb_fname_str_dbg(smb_fname
)));
2012 return NT_STATUS_SHARING_VIOLATION
;
2015 /* First pass - send break only on batch oplocks. */
2017 && delay_for_oplocks(lck
, fsp
, req
->mid
, 1,
2019 schedule_defer_open(lck
, request_time
, req
);
2022 return NT_STATUS_SHARING_VIOLATION
;
2025 status
= open_mode_check(conn
, lck
, access_mask
, share_access
,
2026 create_options
, &file_existed
);
2028 if (NT_STATUS_IS_OK(status
)) {
2029 /* We might be going to allow this open. Check oplock
2031 /* Second pass - send break for both batch or
2032 * exclusive oplocks. */
2034 && delay_for_oplocks(lck
, fsp
, req
->mid
, 2,
2036 schedule_defer_open(lck
, request_time
, req
);
2039 return NT_STATUS_SHARING_VIOLATION
;
2043 if (!NT_STATUS_IS_OK(status
)) {
2044 struct deferred_open_record state
;
2048 state
.delayed_for_oplocks
= False
;
2051 /* Do it all over again immediately. In the second
2052 * round we will find that the file existed and handle
2053 * the DELETE_PENDING and FCB cases correctly. No need
2054 * to duplicate the code here. Essentially this is a
2055 * "goto top of this function", but don't tell
2059 defer_open(lck
, request_time
, timeval_zero(),
2067 * We exit this block with the share entry *locked*.....
2072 SMB_ASSERT(lck
!= NULL
);
2074 /* Delete streams if create_disposition requires it */
2075 if (file_existed
&& clear_ads
&&
2076 !is_ntfs_stream_smb_fname(smb_fname
)) {
2077 status
= delete_all_streams(conn
, smb_fname
->base_name
);
2078 if (!NT_STATUS_IS_OK(status
)) {
2085 /* note that we ignore failure for the following. It is
2086 basically a hack for NFS, and NFS will never set one of
2087 these only read them. Nobody but Samba can ever set a deny
2088 mode and we have already checked our more authoritative
2089 locking database for permission to set this deny mode. If
2090 the kernel refuses the operations then the kernel is wrong.
2091 note that GPFS supports it as well - jmcd */
2093 if (fsp
->fh
->fd
!= -1) {
2094 ret_flock
= SMB_VFS_KERNEL_FLOCK(fsp
, share_access
);
2095 if(ret_flock
== -1 ){
2100 return NT_STATUS_SHARING_VIOLATION
;
2105 * At this point onwards, we can guarentee that the share entry
2106 * is locked, whether we created the file or not, and that the
2107 * deny mode is compatible with all current opens.
2111 * If requested, truncate the file.
2114 if (flags2
&O_TRUNC
) {
2116 * We are modifing the file after open - update the stat
2119 if ((SMB_VFS_FTRUNCATE(fsp
, 0) == -1) ||
2120 (SMB_VFS_FSTAT(fsp
, &smb_fname
->st
)==-1)) {
2121 status
= map_nt_error_from_unix(errno
);
2128 /* Record the options we were opened with. */
2129 fsp
->share_access
= share_access
;
2130 fsp
->fh
->private_options
= create_options
;
2132 * According to Samba4, SEC_FILE_READ_ATTRIBUTE is always granted,
2134 fsp
->access_mask
= access_mask
| FILE_READ_ATTRIBUTES
;
2137 /* stat opens on existing files don't get oplocks. */
2138 if (is_stat_open(open_access_mask
)) {
2139 fsp
->oplock_type
= NO_OPLOCK
;
2142 if (!(flags2
& O_TRUNC
)) {
2143 info
= FILE_WAS_OPENED
;
2145 info
= FILE_WAS_OVERWRITTEN
;
2148 info
= FILE_WAS_CREATED
;
2156 * Setup the oplock info in both the shared memory and
2160 if (!set_file_oplock(fsp
, fsp
->oplock_type
)) {
2161 /* Could not get the kernel oplock */
2162 fsp
->oplock_type
= NO_OPLOCK
;
2165 if (info
== FILE_WAS_OVERWRITTEN
|| info
== FILE_WAS_CREATED
|| info
== FILE_WAS_SUPERSEDED
) {
2166 new_file_created
= True
;
2169 set_share_mode(lck
, fsp
, conn
->server_info
->utok
.uid
, 0,
2172 /* Handle strange delete on close create semantics. */
2173 if (create_options
& FILE_DELETE_ON_CLOSE
) {
2175 status
= can_set_delete_on_close(fsp
, True
, new_dos_attributes
);
2177 if (!NT_STATUS_IS_OK(status
)) {
2178 /* Remember to delete the mode we just added. */
2179 del_share_mode(lck
, fsp
);
2184 /* Note that here we set the *inital* delete on close flag,
2185 not the regular one. The magic gets handled in close. */
2186 fsp
->initial_delete_on_close
= True
;
2189 if (new_file_created
) {
2190 /* Files should be initially set as archive */
2191 if (lp_map_archive(SNUM(conn
)) ||
2192 lp_store_dos_attributes(SNUM(conn
))) {
2194 if (file_set_dosmode(conn
, smb_fname
,
2195 new_dos_attributes
| aARCH
,
2196 parent_dir
, true) == 0) {
2197 unx_mode
= smb_fname
->st
.st_ex_mode
;
2204 * Take care of inherited ACLs on created files - if default ACL not
2208 if (!posix_open
&& !file_existed
&& !def_acl
) {
2210 int saved_errno
= errno
; /* We might get ENOSYS in the next
2213 if (SMB_VFS_FCHMOD_ACL(fsp
, unx_mode
) == -1 &&
2215 errno
= saved_errno
; /* Ignore ENOSYS */
2218 } else if (new_unx_mode
) {
2222 /* Attributes need changing. File already existed. */
2225 int saved_errno
= errno
; /* We might get ENOSYS in the
2227 ret
= SMB_VFS_FCHMOD_ACL(fsp
, new_unx_mode
);
2229 if (ret
== -1 && errno
== ENOSYS
) {
2230 errno
= saved_errno
; /* Ignore ENOSYS */
2232 DEBUG(5, ("open_file_ntcreate: reset "
2233 "attributes of file %s to 0%o\n",
2234 smb_fname_str_dbg(smb_fname
),
2235 (unsigned int)new_unx_mode
));
2236 ret
= 0; /* Don't do the fchmod below. */
2241 (SMB_VFS_FCHMOD(fsp
, new_unx_mode
) == -1))
2242 DEBUG(5, ("open_file_ntcreate: failed to reset "
2243 "attributes of file %s to 0%o\n",
2244 smb_fname_str_dbg(smb_fname
),
2245 (unsigned int)new_unx_mode
));
2248 /* If this is a successful open, we must remove any deferred open
2251 del_deferred_open_entry(lck
, req
->mid
);
2255 return NT_STATUS_OK
;
2259 /****************************************************************************
2260 Open a file for for write to ensure that we can fchmod it.
2261 ****************************************************************************/
2263 NTSTATUS
open_file_fchmod(struct smb_request
*req
, connection_struct
*conn
,
2264 struct smb_filename
*smb_fname
,
2265 files_struct
**result
)
2267 files_struct
*fsp
= NULL
;
2270 if (!VALID_STAT(smb_fname
->st
)) {
2271 return NT_STATUS_INVALID_PARAMETER
;
2274 status
= file_new(req
, conn
, &fsp
);
2275 if(!NT_STATUS_IS_OK(status
)) {
2279 status
= SMB_VFS_CREATE_FILE(
2282 0, /* root_dir_fid */
2283 smb_fname
, /* fname */
2284 FILE_WRITE_DATA
, /* access_mask */
2285 (FILE_SHARE_READ
| FILE_SHARE_WRITE
| /* share_access */
2287 FILE_OPEN
, /* create_disposition*/
2288 0, /* create_options */
2289 0, /* file_attributes */
2290 0, /* oplock_request */
2291 0, /* allocation_size */
2298 * This is not a user visible file open.
2299 * Don't set a share mode.
2302 if (!NT_STATUS_IS_OK(status
)) {
2303 file_free(req
, fsp
);
2308 return NT_STATUS_OK
;
2311 /****************************************************************************
2312 Close the fchmod file fd - ensure no locks are lost.
2313 ****************************************************************************/
2315 NTSTATUS
close_file_fchmod(struct smb_request
*req
, files_struct
*fsp
)
2317 NTSTATUS status
= fd_close(fsp
);
2318 file_free(req
, fsp
);
2322 static NTSTATUS
mkdir_internal(connection_struct
*conn
,
2323 struct smb_filename
*smb_dname
,
2324 uint32 file_attributes
)
2329 bool posix_open
= false;
2331 if(!CAN_WRITE(conn
)) {
2332 DEBUG(5,("mkdir_internal: failing create on read-only share "
2333 "%s\n", lp_servicename(SNUM(conn
))));
2334 return NT_STATUS_ACCESS_DENIED
;
2337 status
= check_name(conn
, smb_dname
->base_name
);
2338 if (!NT_STATUS_IS_OK(status
)) {
2342 if (!parent_dirname(talloc_tos(), smb_dname
->base_name
, &parent_dir
,
2344 return NT_STATUS_NO_MEMORY
;
2347 if (file_attributes
& FILE_FLAG_POSIX_SEMANTICS
) {
2349 mode
= (mode_t
)(file_attributes
& ~FILE_FLAG_POSIX_SEMANTICS
);
2351 mode
= unix_mode(conn
, aDIR
, smb_dname
, parent_dir
);
2354 if (SMB_VFS_MKDIR(conn
, smb_dname
->base_name
, mode
) != 0) {
2355 return map_nt_error_from_unix(errno
);
2358 /* Ensure we're checking for a symlink here.... */
2359 /* We don't want to get caught by a symlink racer. */
2361 if (SMB_VFS_LSTAT(conn
, smb_dname
) == -1) {
2362 DEBUG(2, ("Could not stat directory '%s' just created: %s\n",
2363 smb_fname_str_dbg(smb_dname
), strerror(errno
)));
2364 return map_nt_error_from_unix(errno
);
2367 if (!S_ISDIR(smb_dname
->st
.st_ex_mode
)) {
2368 DEBUG(0, ("Directory just '%s' created is not a directory\n",
2369 smb_fname_str_dbg(smb_dname
)));
2370 return NT_STATUS_ACCESS_DENIED
;
2373 if (lp_store_dos_attributes(SNUM(conn
))) {
2375 file_set_dosmode(conn
, smb_dname
,
2376 file_attributes
| aDIR
,
2381 if (lp_inherit_perms(SNUM(conn
))) {
2382 inherit_access_posix_acl(conn
, parent_dir
,
2383 smb_dname
->base_name
, mode
);
2386 if (!(file_attributes
& FILE_FLAG_POSIX_SEMANTICS
)) {
2388 * Check if high bits should have been set,
2389 * then (if bits are missing): add them.
2390 * Consider bits automagically set by UNIX, i.e. SGID bit from parent
2393 if ((mode
& ~(S_IRWXU
|S_IRWXG
|S_IRWXO
)) &&
2394 (mode
& ~smb_dname
->st
.st_ex_mode
)) {
2395 SMB_VFS_CHMOD(conn
, smb_dname
->base_name
,
2396 (smb_dname
->st
.st_ex_mode
|
2397 (mode
& ~smb_dname
->st
.st_ex_mode
)));
2401 /* Change the owner if required. */
2402 if (lp_inherit_owner(SNUM(conn
))) {
2403 change_dir_owner_to_parent(conn
, parent_dir
,
2404 smb_dname
->base_name
,
2408 notify_fname(conn
, NOTIFY_ACTION_ADDED
, FILE_NOTIFY_CHANGE_DIR_NAME
,
2409 smb_dname
->base_name
);
2411 return NT_STATUS_OK
;
2414 /****************************************************************************
2415 Open a directory from an NT SMB call.
2416 ****************************************************************************/
2418 static NTSTATUS
open_directory(connection_struct
*conn
,
2419 struct smb_request
*req
,
2420 struct smb_filename
*smb_dname
,
2422 uint32 share_access
,
2423 uint32 create_disposition
,
2424 uint32 create_options
,
2425 uint32 file_attributes
,
2427 files_struct
**result
)
2429 files_struct
*fsp
= NULL
;
2430 bool dir_existed
= VALID_STAT(smb_dname
->st
) ? True
: False
;
2431 struct share_mode_lock
*lck
= NULL
;
2433 struct timespec mtimespec
;
2436 SMB_ASSERT(!is_ntfs_stream_smb_fname(smb_dname
));
2438 DEBUG(5,("open_directory: opening directory %s, access_mask = 0x%x, "
2439 "share_access = 0x%x create_options = 0x%x, "
2440 "create_disposition = 0x%x, file_attributes = 0x%x\n",
2441 smb_fname_str_dbg(smb_dname
),
2442 (unsigned int)access_mask
,
2443 (unsigned int)share_access
,
2444 (unsigned int)create_options
,
2445 (unsigned int)create_disposition
,
2446 (unsigned int)file_attributes
));
2448 if (!(file_attributes
& FILE_FLAG_POSIX_SEMANTICS
) &&
2449 (conn
->fs_capabilities
& FILE_NAMED_STREAMS
) &&
2450 is_ntfs_stream_smb_fname(smb_dname
)) {
2451 DEBUG(2, ("open_directory: %s is a stream name!\n",
2452 smb_fname_str_dbg(smb_dname
)));
2453 return NT_STATUS_NOT_A_DIRECTORY
;
2456 status
= calculate_access_mask(conn
, smb_dname
, dir_existed
,
2457 access_mask
, &access_mask
);
2458 if (!NT_STATUS_IS_OK(status
)) {
2459 DEBUG(10, ("open_directory: calculate_access_mask "
2460 "on file %s returned %s\n",
2461 smb_fname_str_dbg(smb_dname
),
2462 nt_errstr(status
)));
2466 /* We need to support SeSecurityPrivilege for this. */
2467 if (access_mask
& SEC_FLAG_SYSTEM_SECURITY
) {
2468 DEBUG(10, ("open_directory: open on %s "
2469 "failed - SEC_FLAG_SYSTEM_SECURITY denied.\n",
2470 smb_fname_str_dbg(smb_dname
)));
2471 return NT_STATUS_PRIVILEGE_NOT_HELD
;
2474 switch( create_disposition
) {
2477 info
= FILE_WAS_OPENED
;
2480 * We want to follow symlinks here.
2483 if (SMB_VFS_STAT(conn
, smb_dname
) != 0) {
2484 return map_nt_error_from_unix(errno
);
2491 /* If directory exists error. If directory doesn't
2494 status
= mkdir_internal(conn
, smb_dname
,
2497 if (!NT_STATUS_IS_OK(status
)) {
2498 DEBUG(2, ("open_directory: unable to create "
2499 "%s. Error was %s\n",
2500 smb_fname_str_dbg(smb_dname
),
2501 nt_errstr(status
)));
2505 info
= FILE_WAS_CREATED
;
2510 * If directory exists open. If directory doesn't
2514 status
= mkdir_internal(conn
, smb_dname
,
2517 if (NT_STATUS_IS_OK(status
)) {
2518 info
= FILE_WAS_CREATED
;
2521 if (NT_STATUS_EQUAL(status
,
2522 NT_STATUS_OBJECT_NAME_COLLISION
)) {
2523 info
= FILE_WAS_OPENED
;
2524 status
= NT_STATUS_OK
;
2529 case FILE_SUPERSEDE
:
2530 case FILE_OVERWRITE
:
2531 case FILE_OVERWRITE_IF
:
2533 DEBUG(5,("open_directory: invalid create_disposition "
2534 "0x%x for directory %s\n",
2535 (unsigned int)create_disposition
,
2536 smb_fname_str_dbg(smb_dname
)));
2537 return NT_STATUS_INVALID_PARAMETER
;
2540 if(!S_ISDIR(smb_dname
->st
.st_ex_mode
)) {
2541 DEBUG(5,("open_directory: %s is not a directory !\n",
2542 smb_fname_str_dbg(smb_dname
)));
2543 return NT_STATUS_NOT_A_DIRECTORY
;
2546 if (info
== FILE_WAS_OPENED
) {
2547 uint32_t access_granted
= 0;
2548 status
= check_open_rights(conn
, smb_dname
, access_mask
,
2551 /* Were we trying to do a directory open
2552 * for delete and didn't get DELETE
2553 * access (only) ? Check if the
2554 * directory allows DELETE_CHILD.
2556 * http://blogs.msdn.com/oldnewthing/archive/2004/06/04/148426.aspx
2559 if ((NT_STATUS_EQUAL(status
, NT_STATUS_ACCESS_DENIED
) &&
2560 (access_mask
& DELETE_ACCESS
) &&
2561 (access_granted
== DELETE_ACCESS
) &&
2562 can_delete_file_in_directory(conn
, smb_dname
))) {
2563 DEBUG(10,("open_directory: overrode ACCESS_DENIED "
2564 "on directory %s\n",
2565 smb_fname_str_dbg(smb_dname
)));
2566 status
= NT_STATUS_OK
;
2569 if (!NT_STATUS_IS_OK(status
)) {
2570 DEBUG(10, ("open_directory: check_open_rights on "
2571 "file %s failed with %s\n",
2572 smb_fname_str_dbg(smb_dname
),
2573 nt_errstr(status
)));
2578 status
= file_new(req
, conn
, &fsp
);
2579 if(!NT_STATUS_IS_OK(status
)) {
2584 * Setup the files_struct for it.
2587 fsp
->mode
= smb_dname
->st
.st_ex_mode
;
2588 fsp
->file_id
= vfs_file_id_from_sbuf(conn
, &smb_dname
->st
);
2589 fsp
->vuid
= req
? req
->vuid
: UID_FIELD_INVALID
;
2590 fsp
->file_pid
= req
? req
->smbpid
: 0;
2591 fsp
->can_lock
= False
;
2592 fsp
->can_read
= False
;
2593 fsp
->can_write
= False
;
2595 fsp
->share_access
= share_access
;
2596 fsp
->fh
->private_options
= create_options
;
2598 * According to Samba4, SEC_FILE_READ_ATTRIBUTE is always granted,
2600 fsp
->access_mask
= access_mask
| FILE_READ_ATTRIBUTES
;
2601 fsp
->print_file
= False
;
2602 fsp
->modified
= False
;
2603 fsp
->oplock_type
= NO_OPLOCK
;
2604 fsp
->sent_oplock_break
= NO_BREAK_SENT
;
2605 fsp
->is_directory
= True
;
2606 fsp
->posix_open
= (file_attributes
& FILE_FLAG_POSIX_SEMANTICS
) ? True
: False
;
2607 status
= fsp_set_smb_fname(fsp
, smb_dname
);
2608 if (!NT_STATUS_IS_OK(status
)) {
2612 mtimespec
= smb_dname
->st
.st_ex_mtime
;
2614 lck
= get_share_mode_lock(talloc_tos(), fsp
->file_id
,
2615 conn
->connectpath
, smb_dname
, &mtimespec
);
2618 DEBUG(0, ("open_directory: Could not get share mode lock for "
2619 "%s\n", smb_fname_str_dbg(smb_dname
)));
2620 file_free(req
, fsp
);
2621 return NT_STATUS_SHARING_VIOLATION
;
2624 status
= open_mode_check(conn
, lck
, access_mask
, share_access
,
2625 create_options
, &dir_existed
);
2627 if (!NT_STATUS_IS_OK(status
)) {
2629 file_free(req
, fsp
);
2633 set_share_mode(lck
, fsp
, conn
->server_info
->utok
.uid
, 0, NO_OPLOCK
);
2635 /* For directories the delete on close bit at open time seems
2636 always to be honored on close... See test 19 in Samba4 BASE-DELETE. */
2637 if (create_options
& FILE_DELETE_ON_CLOSE
) {
2638 status
= can_set_delete_on_close(fsp
, True
, 0);
2639 if (!NT_STATUS_IS_OK(status
) && !NT_STATUS_EQUAL(status
, NT_STATUS_DIRECTORY_NOT_EMPTY
)) {
2641 file_free(req
, fsp
);
2645 if (NT_STATUS_IS_OK(status
)) {
2646 /* Note that here we set the *inital* delete on close flag,
2647 not the regular one. The magic gets handled in close. */
2648 fsp
->initial_delete_on_close
= True
;
2659 return NT_STATUS_OK
;
2662 NTSTATUS
create_directory(connection_struct
*conn
, struct smb_request
*req
,
2663 struct smb_filename
*smb_dname
)
2668 status
= SMB_VFS_CREATE_FILE(
2671 0, /* root_dir_fid */
2672 smb_dname
, /* fname */
2673 FILE_READ_ATTRIBUTES
, /* access_mask */
2674 FILE_SHARE_NONE
, /* share_access */
2675 FILE_CREATE
, /* create_disposition*/
2676 FILE_DIRECTORY_FILE
, /* create_options */
2677 FILE_ATTRIBUTE_DIRECTORY
, /* file_attributes */
2678 0, /* oplock_request */
2679 0, /* allocation_size */
2685 if (NT_STATUS_IS_OK(status
)) {
2686 close_file(req
, fsp
, NORMAL_CLOSE
);
2692 /****************************************************************************
2693 Receive notification that one of our open files has been renamed by another
2695 ****************************************************************************/
2697 void msg_file_was_renamed(struct messaging_context
*msg
,
2700 struct server_id server_id
,
2704 char *frm
= (char *)data
->data
;
2706 const char *sharepath
;
2707 const char *base_name
;
2708 const char *stream_name
;
2709 struct smb_filename
*smb_fname
= NULL
;
2710 size_t sp_len
, bn_len
;
2713 if (data
->data
== NULL
2714 || data
->length
< MSG_FILE_RENAMED_MIN_SIZE
+ 2) {
2715 DEBUG(0, ("msg_file_was_renamed: Got invalid msg len %d\n",
2716 (int)data
->length
));
2720 /* Unpack the message. */
2721 pull_file_id_24(frm
, &id
);
2722 sharepath
= &frm
[24];
2723 sp_len
= strlen(sharepath
);
2724 base_name
= sharepath
+ sp_len
+ 1;
2725 bn_len
= strlen(base_name
);
2726 stream_name
= sharepath
+ sp_len
+ 1 + bn_len
+ 1;
2728 /* stream_name must always be NULL if there is no stream. */
2729 if (stream_name
[0] == '\0') {
2733 status
= create_synthetic_smb_fname(talloc_tos(), base_name
,
2734 stream_name
, NULL
, &smb_fname
);
2735 if (!NT_STATUS_IS_OK(status
)) {
2739 DEBUG(10,("msg_file_was_renamed: Got rename message for sharepath %s, new name %s, "
2741 sharepath
, smb_fname_str_dbg(smb_fname
),
2742 file_id_string_tos(&id
)));
2744 for(fsp
= file_find_di_first(id
); fsp
; fsp
= file_find_di_next(fsp
)) {
2745 if (memcmp(fsp
->conn
->connectpath
, sharepath
, sp_len
) == 0) {
2747 DEBUG(10,("msg_file_was_renamed: renaming file fnum %d from %s -> %s\n",
2748 fsp
->fnum
, fsp_str_dbg(fsp
),
2749 smb_fname_str_dbg(smb_fname
)));
2750 status
= fsp_set_smb_fname(fsp
, smb_fname
);
2751 if (!NT_STATUS_IS_OK(status
)) {
2756 /* Now we have the complete path we can work out if this is
2757 actually within this share and adjust newname accordingly. */
2758 DEBUG(10,("msg_file_was_renamed: share mismatch (sharepath %s "
2759 "not sharepath %s) "
2760 "fnum %d from %s -> %s\n",
2761 fsp
->conn
->connectpath
,
2765 smb_fname_str_dbg(smb_fname
)));
2769 TALLOC_FREE(smb_fname
);
2773 struct case_semantics_state
{
2774 connection_struct
*conn
;
2775 bool case_sensitive
;
2777 bool short_case_preserve
;
2780 /****************************************************************************
2781 Restore case semantics.
2782 ****************************************************************************/
2783 static int restore_case_semantics(struct case_semantics_state
*state
)
2785 state
->conn
->case_sensitive
= state
->case_sensitive
;
2786 state
->conn
->case_preserve
= state
->case_preserve
;
2787 state
->conn
->short_case_preserve
= state
->short_case_preserve
;
2791 /****************************************************************************
2792 Save case semantics.
2793 ****************************************************************************/
2794 struct case_semantics_state
*set_posix_case_semantics(TALLOC_CTX
*mem_ctx
,
2795 connection_struct
*conn
)
2797 struct case_semantics_state
*result
;
2799 if (!(result
= talloc(mem_ctx
, struct case_semantics_state
))) {
2800 DEBUG(0, ("talloc failed\n"));
2804 result
->conn
= conn
;
2805 result
->case_sensitive
= conn
->case_sensitive
;
2806 result
->case_preserve
= conn
->case_preserve
;
2807 result
->short_case_preserve
= conn
->short_case_preserve
;
2810 conn
->case_sensitive
= True
;
2811 conn
->case_preserve
= True
;
2812 conn
->short_case_preserve
= True
;
2814 talloc_set_destructor(result
, restore_case_semantics
);
2820 * If a main file is opened for delete, all streams need to be checked for
2821 * !FILE_SHARE_DELETE. Do this by opening with DELETE_ACCESS.
2822 * If that works, delete them all by setting the delete on close and close.
2825 NTSTATUS
open_streams_for_delete(connection_struct
*conn
,
2828 struct stream_struct
*stream_info
;
2829 files_struct
**streams
;
2831 unsigned int num_streams
;
2832 TALLOC_CTX
*frame
= talloc_stackframe();
2835 status
= SMB_VFS_STREAMINFO(conn
, NULL
, fname
, talloc_tos(),
2836 &num_streams
, &stream_info
);
2838 if (NT_STATUS_EQUAL(status
, NT_STATUS_NOT_IMPLEMENTED
)
2839 || NT_STATUS_EQUAL(status
, NT_STATUS_OBJECT_NAME_NOT_FOUND
)) {
2840 DEBUG(10, ("no streams around\n"));
2842 return NT_STATUS_OK
;
2845 if (!NT_STATUS_IS_OK(status
)) {
2846 DEBUG(10, ("SMB_VFS_STREAMINFO failed: %s\n",
2847 nt_errstr(status
)));
2851 DEBUG(10, ("open_streams_for_delete found %d streams\n",
2854 if (num_streams
== 0) {
2856 return NT_STATUS_OK
;
2859 streams
= TALLOC_ARRAY(talloc_tos(), files_struct
*, num_streams
);
2860 if (streams
== NULL
) {
2861 DEBUG(0, ("talloc failed\n"));
2862 status
= NT_STATUS_NO_MEMORY
;
2866 for (i
=0; i
<num_streams
; i
++) {
2867 struct smb_filename
*smb_fname
= NULL
;
2869 if (strequal(stream_info
[i
].name
, "::$DATA")) {
2874 status
= create_synthetic_smb_fname(talloc_tos(), fname
,
2875 stream_info
[i
].name
,
2877 if (!NT_STATUS_IS_OK(status
)) {
2881 if (SMB_VFS_STAT(conn
, smb_fname
) == -1) {
2882 DEBUG(10, ("Unable to stat stream: %s\n",
2883 smb_fname_str_dbg(smb_fname
)));
2886 status
= SMB_VFS_CREATE_FILE(
2889 0, /* root_dir_fid */
2890 smb_fname
, /* fname */
2891 DELETE_ACCESS
, /* access_mask */
2892 (FILE_SHARE_READ
| /* share_access */
2893 FILE_SHARE_WRITE
| FILE_SHARE_DELETE
),
2894 FILE_OPEN
, /* create_disposition*/
2895 NTCREATEX_OPTIONS_PRIVATE_STREAM_DELETE
, /* create_options */
2896 FILE_ATTRIBUTE_NORMAL
, /* file_attributes */
2897 0, /* oplock_request */
2898 0, /* allocation_size */
2901 &streams
[i
], /* result */
2904 if (!NT_STATUS_IS_OK(status
)) {
2905 DEBUG(10, ("Could not open stream %s: %s\n",
2906 smb_fname_str_dbg(smb_fname
),
2907 nt_errstr(status
)));
2909 TALLOC_FREE(smb_fname
);
2912 TALLOC_FREE(smb_fname
);
2916 * don't touch the variable "status" beyond this point :-)
2919 for (i
-= 1 ; i
>= 0; i
--) {
2920 if (streams
[i
] == NULL
) {
2924 DEBUG(10, ("Closing stream # %d, %s\n", i
,
2925 fsp_str_dbg(streams
[i
])));
2926 close_file(NULL
, streams
[i
], NORMAL_CLOSE
);
2935 * Wrapper around open_file_ntcreate and open_directory
2938 static NTSTATUS
create_file_unixpath(connection_struct
*conn
,
2939 struct smb_request
*req
,
2940 struct smb_filename
*smb_fname
,
2941 uint32_t access_mask
,
2942 uint32_t share_access
,
2943 uint32_t create_disposition
,
2944 uint32_t create_options
,
2945 uint32_t file_attributes
,
2946 uint32_t oplock_request
,
2947 uint64_t allocation_size
,
2948 struct security_descriptor
*sd
,
2949 struct ea_list
*ea_list
,
2951 files_struct
**result
,
2954 int info
= FILE_WAS_OPENED
;
2955 files_struct
*base_fsp
= NULL
;
2956 files_struct
*fsp
= NULL
;
2959 DEBUG(10,("create_file_unixpath: access_mask = 0x%x "
2960 "file_attributes = 0x%x, share_access = 0x%x, "
2961 "create_disposition = 0x%x create_options = 0x%x "
2962 "oplock_request = 0x%x ea_list = 0x%p, sd = 0x%p, "
2964 (unsigned int)access_mask
,
2965 (unsigned int)file_attributes
,
2966 (unsigned int)share_access
,
2967 (unsigned int)create_disposition
,
2968 (unsigned int)create_options
,
2969 (unsigned int)oplock_request
,
2970 ea_list
, sd
, smb_fname_str_dbg(smb_fname
)));
2972 if (create_options
& FILE_OPEN_BY_FILE_ID
) {
2973 status
= NT_STATUS_NOT_SUPPORTED
;
2977 if (create_options
& NTCREATEX_OPTIONS_INVALID_PARAM_MASK
) {
2978 status
= NT_STATUS_INVALID_PARAMETER
;
2983 oplock_request
|= INTERNAL_OPEN_ONLY
;
2986 if ((conn
->fs_capabilities
& FILE_NAMED_STREAMS
)
2987 && (access_mask
& DELETE_ACCESS
)
2988 && !is_ntfs_stream_smb_fname(smb_fname
)) {
2990 * We can't open a file with DELETE access if any of the
2991 * streams is open without FILE_SHARE_DELETE
2993 status
= open_streams_for_delete(conn
, smb_fname
->base_name
);
2995 if (!NT_STATUS_IS_OK(status
)) {
3000 /* This is the correct thing to do (check every time) but can_delete
3001 * is expensive (it may have to read the parent directory
3002 * permissions). So for now we're not doing it unless we have a strong
3003 * hint the client is really going to delete this file. If the client
3004 * is forcing FILE_CREATE let the filesystem take care of the
3007 /* Setting FILE_SHARE_DELETE is the hint. */
3009 if (lp_acl_check_permissions(SNUM(conn
))
3010 && (create_disposition
!= FILE_CREATE
)
3011 && (share_access
& FILE_SHARE_DELETE
)
3012 && (access_mask
& DELETE_ACCESS
)
3013 && (!(can_delete_file_in_directory(conn
, smb_fname
) ||
3014 can_access_file_acl(conn
, smb_fname
, DELETE_ACCESS
)))) {
3015 status
= NT_STATUS_ACCESS_DENIED
;
3016 DEBUG(10,("create_file_unixpath: open file %s "
3017 "for delete ACCESS_DENIED\n",
3018 smb_fname_str_dbg(smb_fname
)));
3023 /* We need to support SeSecurityPrivilege for this. */
3024 if ((access_mask
& SEC_FLAG_SYSTEM_SECURITY
) &&
3025 !user_has_privileges(current_user
.nt_user_token
,
3027 status
= NT_STATUS_PRIVILEGE_NOT_HELD
;
3031 /* We need to support SeSecurityPrivilege for this. */
3032 if (access_mask
& SEC_FLAG_SYSTEM_SECURITY
) {
3033 status
= NT_STATUS_PRIVILEGE_NOT_HELD
;
3036 /* Don't allow a SACL set from an NTtrans create until we
3037 * support SeSecurityPrivilege. */
3038 if (!VALID_STAT(smb_fname
->st
) &&
3039 lp_nt_acl_support(SNUM(conn
)) &&
3040 sd
&& (sd
->sacl
!= NULL
)) {
3041 status
= NT_STATUS_PRIVILEGE_NOT_HELD
;
3046 if ((conn
->fs_capabilities
& FILE_NAMED_STREAMS
)
3047 && is_ntfs_stream_smb_fname(smb_fname
)
3048 && (!(create_options
& NTCREATEX_OPTIONS_PRIVATE_STREAM_DELETE
))) {
3049 uint32 base_create_disposition
;
3050 struct smb_filename
*smb_fname_base
= NULL
;
3052 if (create_options
& FILE_DIRECTORY_FILE
) {
3053 status
= NT_STATUS_NOT_A_DIRECTORY
;
3057 switch (create_disposition
) {
3059 base_create_disposition
= FILE_OPEN
;
3062 base_create_disposition
= FILE_OPEN_IF
;
3066 /* Create an smb_filename with stream_name == NULL. */
3067 status
= create_synthetic_smb_fname(talloc_tos(),
3068 smb_fname
->base_name
,
3071 if (!NT_STATUS_IS_OK(status
)) {
3075 if (SMB_VFS_STAT(conn
, smb_fname_base
) == -1) {
3076 DEBUG(10, ("Unable to stat stream: %s\n",
3077 smb_fname_str_dbg(smb_fname_base
)));
3080 /* Open the base file. */
3081 status
= create_file_unixpath(conn
, NULL
, smb_fname_base
, 0,
3084 | FILE_SHARE_DELETE
,
3085 base_create_disposition
,
3086 0, 0, 0, 0, NULL
, NULL
,
3088 TALLOC_FREE(smb_fname_base
);
3090 if (!NT_STATUS_IS_OK(status
)) {
3091 DEBUG(10, ("create_file_unixpath for base %s failed: "
3092 "%s\n", smb_fname
->base_name
,
3093 nt_errstr(status
)));
3096 /* we don't need to low level fd */
3101 * If it's a request for a directory open, deal with it separately.
3104 if (create_options
& FILE_DIRECTORY_FILE
) {
3106 if (create_options
& FILE_NON_DIRECTORY_FILE
) {
3107 status
= NT_STATUS_INVALID_PARAMETER
;
3111 /* Can't open a temp directory. IFS kit test. */
3112 if (!(file_attributes
& FILE_FLAG_POSIX_SEMANTICS
) &&
3113 (file_attributes
& FILE_ATTRIBUTE_TEMPORARY
)) {
3114 status
= NT_STATUS_INVALID_PARAMETER
;
3119 * We will get a create directory here if the Win32
3120 * app specified a security descriptor in the
3121 * CreateDirectory() call.
3125 status
= open_directory(
3126 conn
, req
, smb_fname
, access_mask
, share_access
,
3127 create_disposition
, create_options
, file_attributes
,
3132 * Ordinary file case.
3135 status
= file_new(req
, conn
, &fsp
);
3136 if(!NT_STATUS_IS_OK(status
)) {
3141 * We're opening the stream element of a base_fsp
3142 * we already opened. Set up the base_fsp pointer.
3145 fsp
->base_fsp
= base_fsp
;
3148 status
= open_file_ntcreate(conn
,
3160 if(!NT_STATUS_IS_OK(status
)) {
3161 file_free(req
, fsp
);
3165 if (NT_STATUS_EQUAL(status
, NT_STATUS_FILE_IS_A_DIRECTORY
)) {
3167 /* A stream open never opens a directory */
3170 status
= NT_STATUS_FILE_IS_A_DIRECTORY
;
3175 * Fail the open if it was explicitly a non-directory
3179 if (create_options
& FILE_NON_DIRECTORY_FILE
) {
3180 status
= NT_STATUS_FILE_IS_A_DIRECTORY
;
3185 status
= open_directory(
3186 conn
, req
, smb_fname
, access_mask
,
3187 share_access
, create_disposition
,
3188 create_options
, file_attributes
,
3193 if (!NT_STATUS_IS_OK(status
)) {
3197 fsp
->base_fsp
= base_fsp
;
3200 * According to the MS documentation, the only time the security
3201 * descriptor is applied to the opened file is iff we *created* the
3202 * file; an existing file stays the same.
3204 * Also, it seems (from observation) that you can open the file with
3205 * any access mask but you can still write the sd. We need to override
3206 * the granted access before we call set_sd
3207 * Patch for bug #2242 from Tom Lackemann <cessnatomny@yahoo.com>.
3210 if ((sd
!= NULL
) && (info
== FILE_WAS_CREATED
)
3211 && lp_nt_acl_support(SNUM(conn
))) {
3213 uint32_t sec_info_sent
;
3214 uint32_t saved_access_mask
= fsp
->access_mask
;
3216 sec_info_sent
= get_sec_info(sd
);
3218 fsp
->access_mask
= FILE_GENERIC_ALL
;
3220 /* Convert all the generic bits. */
3221 security_acl_map_generic(sd
->dacl
, &file_generic_mapping
);
3222 security_acl_map_generic(sd
->sacl
, &file_generic_mapping
);
3224 if (sec_info_sent
& (OWNER_SECURITY_INFORMATION
|
3225 GROUP_SECURITY_INFORMATION
|
3226 DACL_SECURITY_INFORMATION
|
3227 SACL_SECURITY_INFORMATION
)) {
3228 status
= SMB_VFS_FSET_NT_ACL(fsp
, sec_info_sent
, sd
);
3231 fsp
->access_mask
= saved_access_mask
;
3233 if (!NT_STATUS_IS_OK(status
)) {
3238 if ((ea_list
!= NULL
) &&
3239 ((info
== FILE_WAS_CREATED
) || (info
== FILE_WAS_OVERWRITTEN
))) {
3240 status
= set_ea(conn
, fsp
, smb_fname
, ea_list
);
3241 if (!NT_STATUS_IS_OK(status
)) {
3246 if (!fsp
->is_directory
&& S_ISDIR(smb_fname
->st
.st_ex_mode
)) {
3247 status
= NT_STATUS_ACCESS_DENIED
;
3251 /* Save the requested allocation size. */
3252 if ((info
== FILE_WAS_CREATED
) || (info
== FILE_WAS_OVERWRITTEN
)) {
3254 && (allocation_size
> smb_fname
->st
.st_ex_size
)) {
3255 fsp
->initial_allocation_size
= smb_roundup(
3256 fsp
->conn
, allocation_size
);
3257 if (fsp
->is_directory
) {
3258 /* Can't set allocation size on a directory. */
3259 status
= NT_STATUS_ACCESS_DENIED
;
3262 if (vfs_allocate_file_space(
3263 fsp
, fsp
->initial_allocation_size
) == -1) {
3264 status
= NT_STATUS_DISK_FULL
;
3268 fsp
->initial_allocation_size
= smb_roundup(
3269 fsp
->conn
, (uint64_t)smb_fname
->st
.st_ex_size
);
3273 DEBUG(10, ("create_file_unixpath: info=%d\n", info
));
3276 if (pinfo
!= NULL
) {
3279 if ((fsp
->fh
!= NULL
) && (fsp
->fh
->fd
!= -1)) {
3280 SMB_VFS_FSTAT(fsp
, &smb_fname
->st
);
3282 return NT_STATUS_OK
;
3285 DEBUG(10, ("create_file_unixpath: %s\n", nt_errstr(status
)));
3288 if (base_fsp
&& fsp
->base_fsp
== base_fsp
) {
3290 * The close_file below will close
3295 close_file(req
, fsp
, ERROR_CLOSE
);
3298 if (base_fsp
!= NULL
) {
3299 close_file(req
, base_fsp
, ERROR_CLOSE
);
3306 * Calculate the full path name given a relative fid.
3308 NTSTATUS
get_relative_fid_filename(connection_struct
*conn
,
3309 struct smb_request
*req
,
3310 uint16_t root_dir_fid
,
3311 struct smb_filename
*smb_fname
)
3313 files_struct
*dir_fsp
;
3314 char *parent_fname
= NULL
;
3315 char *new_base_name
= NULL
;
3318 if (root_dir_fid
== 0 || !smb_fname
) {
3319 status
= NT_STATUS_INTERNAL_ERROR
;
3323 dir_fsp
= file_fsp(req
, root_dir_fid
);
3325 if (is_ntfs_stream_smb_fname(dir_fsp
->fsp_name
)) {
3326 status
= NT_STATUS_INVALID_HANDLE
;
3330 if (dir_fsp
== NULL
) {
3331 status
= NT_STATUS_INVALID_HANDLE
;
3335 if (!dir_fsp
->is_directory
) {
3338 * Check to see if this is a mac fork of some kind.
3341 if ((conn
->fs_capabilities
& FILE_NAMED_STREAMS
) &&
3342 is_ntfs_stream_smb_fname(smb_fname
)) {
3343 status
= NT_STATUS_OBJECT_PATH_NOT_FOUND
;
3348 we need to handle the case when we get a
3349 relative open relative to a file and the
3350 pathname is blank - this is a reopen!
3351 (hint from demyn plantenberg)
3354 status
= NT_STATUS_INVALID_HANDLE
;
3358 if (ISDOT(dir_fsp
->fsp_name
->base_name
)) {
3360 * We're at the toplevel dir, the final file name
3361 * must not contain ./, as this is filtered out
3362 * normally by srvstr_get_path and unix_convert
3363 * explicitly rejects paths containing ./.
3365 parent_fname
= talloc_strdup(talloc_tos(), "");
3366 if (parent_fname
== NULL
) {
3367 status
= NT_STATUS_NO_MEMORY
;
3371 size_t dir_name_len
= strlen(dir_fsp
->fsp_name
->base_name
);
3374 * Copy in the base directory name.
3377 parent_fname
= TALLOC_ARRAY(talloc_tos(), char,
3379 if (parent_fname
== NULL
) {
3380 status
= NT_STATUS_NO_MEMORY
;
3383 memcpy(parent_fname
, dir_fsp
->fsp_name
->base_name
,
3387 * Ensure it ends in a '/'.
3388 * We used TALLOC_SIZE +2 to add space for the '/'.
3392 && (parent_fname
[dir_name_len
-1] != '\\')
3393 && (parent_fname
[dir_name_len
-1] != '/')) {
3394 parent_fname
[dir_name_len
] = '/';
3395 parent_fname
[dir_name_len
+1] = '\0';
3399 new_base_name
= talloc_asprintf(smb_fname
, "%s%s", parent_fname
,
3400 smb_fname
->base_name
);
3401 if (new_base_name
== NULL
) {
3402 status
= NT_STATUS_NO_MEMORY
;
3406 TALLOC_FREE(smb_fname
->base_name
);
3407 smb_fname
->base_name
= new_base_name
;
3408 status
= NT_STATUS_OK
;
3411 TALLOC_FREE(parent_fname
);
3415 NTSTATUS
create_file_default(connection_struct
*conn
,
3416 struct smb_request
*req
,
3417 uint16_t root_dir_fid
,
3418 struct smb_filename
*smb_fname
,
3419 uint32_t access_mask
,
3420 uint32_t share_access
,
3421 uint32_t create_disposition
,
3422 uint32_t create_options
,
3423 uint32_t file_attributes
,
3424 uint32_t oplock_request
,
3425 uint64_t allocation_size
,
3426 struct security_descriptor
*sd
,
3427 struct ea_list
*ea_list
,
3428 files_struct
**result
,
3431 int info
= FILE_WAS_OPENED
;
3432 files_struct
*fsp
= NULL
;
3435 DEBUG(10,("create_file: access_mask = 0x%x "
3436 "file_attributes = 0x%x, share_access = 0x%x, "
3437 "create_disposition = 0x%x create_options = 0x%x "
3438 "oplock_request = 0x%x "
3439 "root_dir_fid = 0x%x, ea_list = 0x%p, sd = 0x%p, "
3441 (unsigned int)access_mask
,
3442 (unsigned int)file_attributes
,
3443 (unsigned int)share_access
,
3444 (unsigned int)create_disposition
,
3445 (unsigned int)create_options
,
3446 (unsigned int)oplock_request
,
3447 (unsigned int)root_dir_fid
,
3448 ea_list
, sd
, smb_fname_str_dbg(smb_fname
)));
3451 * Calculate the filename from the root_dir_if if necessary.
3454 if (root_dir_fid
!= 0) {
3455 status
= get_relative_fid_filename(conn
, req
, root_dir_fid
,
3457 if (!NT_STATUS_IS_OK(status
)) {
3463 * Check to see if this is a mac fork of some kind.
3466 if (is_ntfs_stream_smb_fname(smb_fname
)) {
3467 enum FAKE_FILE_TYPE fake_file_type
;
3469 fake_file_type
= is_fake_file(smb_fname
);
3471 if (fake_file_type
!= FAKE_FILE_TYPE_NONE
) {
3474 * Here we go! support for changing the disk quotas
3477 * We need to fake up to open this MAGIC QUOTA file
3478 * and return a valid FID.
3480 * w2k close this file directly after openening xp
3481 * also tries a QUERY_FILE_INFO on the file and then
3484 status
= open_fake_file(req
, conn
, req
->vuid
,
3485 fake_file_type
, smb_fname
,
3487 if (!NT_STATUS_IS_OK(status
)) {
3491 ZERO_STRUCT(smb_fname
->st
);
3495 if (!(conn
->fs_capabilities
& FILE_NAMED_STREAMS
)) {
3496 status
= NT_STATUS_OBJECT_NAME_NOT_FOUND
;
3501 /* All file access must go through check_name() */
3503 status
= check_name(conn
, smb_fname
->base_name
);
3504 if (!NT_STATUS_IS_OK(status
)) {
3508 status
= create_file_unixpath(
3509 conn
, req
, smb_fname
, access_mask
, share_access
,
3510 create_disposition
, create_options
, file_attributes
,
3511 oplock_request
, allocation_size
, sd
, ea_list
,
3514 if (!NT_STATUS_IS_OK(status
)) {
3519 DEBUG(10, ("create_file: info=%d\n", info
));
3522 if (pinfo
!= NULL
) {
3525 return NT_STATUS_OK
;
3528 DEBUG(10, ("create_file: %s\n", nt_errstr(status
)));
3531 close_file(req
, fsp
, ERROR_CLOSE
);