2 * Unix SMB/CIFS implementation.
4 * This file began with some code from source3/smbd/open.c and has been
5 * modified it work with ifs_createfile.
7 * ifs_createfile is a CIFS-specific syscall for opening/files and
8 * directories. It adds support for:
9 * - Full in-kernel access checks using a windows access_mask
10 * - Cluster-coherent share mode locks
11 * - Cluster-coherent oplocks
13 * - Setting security descriptors at create time
14 * - Setting dos_attributes at create time
16 * Copyright (C) Andrew Tridgell 1992-1998
17 * Copyright (C) Jeremy Allison 2001-2004
18 * Copyright (C) Volker Lendecke 2005
19 * Copyright (C) Tim Prouty, 2008
21 * This program is free software; you can redistribute it and/or modify
22 * it under the terms of the GNU General Public License as published by
23 * the Free Software Foundation; either version 3 of the License, or
24 * (at your option) any later version.
26 * This program is distributed in the hope that it will be useful,
27 * but WITHOUT ANY WARRANTY; without even the implied warranty of
28 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
29 * GNU General Public License for more details.
31 * You should have received a copy of the GNU General Public License
32 * along with this program; if not, see <http://www.gnu.org/licenses/>.
37 #include "onefs_config.h"
38 #include "oplock_onefs.h"
39 #include "smbd/globals.h"
41 extern const struct generic_mapping file_generic_mapping
;
43 struct onefs_fsp_data
{
44 uint64_t oplock_callback_id
;
47 static NTSTATUS
onefs_create_file_unixpath(connection_struct
*conn
,
48 struct smb_request
*req
,
49 struct smb_filename
*smb_fname
,
51 uint32_t share_access
,
52 uint32_t create_disposition
,
53 uint32_t create_options
,
54 uint32_t file_attributes
,
55 uint32_t oplock_request
,
56 uint64_t allocation_size
,
57 struct security_descriptor
*sd
,
58 struct ea_list
*ea_list
,
59 files_struct
**result
,
61 struct onefs_fsp_data
*fsp_data
);
63 /****************************************************************************
65 ****************************************************************************/
67 static NTSTATUS
onefs_open_file(files_struct
*fsp
,
68 connection_struct
*conn
,
69 struct smb_request
*req
,
70 const char *parent_dir
,
71 struct smb_filename
*smb_fname
,
75 uint32 open_access_mask
,
79 uint32 create_options
,
80 uint32_t new_dos_attributes
,
81 struct security_descriptor
*sd
,
84 struct smb_filename
*smb_fname_onefs
= NULL
;
85 NTSTATUS status
= NT_STATUS_OK
;
86 int accmode
= (flags
& O_ACCMODE
);
87 int local_flags
= flags
;
88 bool file_existed
= VALID_STAT(smb_fname
->st
);
95 /* Check permissions */
98 * This code was changed after seeing a client open request
99 * containing the open mode of (DENY_WRITE/read-only) with
100 * the 'create if not exist' bit set. The previous code
101 * would fail to open the file read only on a read-only share
102 * as it was checking the flags parameter directly against O_RDONLY,
103 * this was failing as the flags parameter was set to O_RDONLY|O_CREAT.
107 if (!CAN_WRITE(conn
)) {
108 /* It's a read-only share - fail if we wanted to write. */
109 if(accmode
!= O_RDONLY
) {
110 DEBUG(3, ("Permission denied opening %s\n",
111 smb_fname_str_dbg(smb_fname
)));
112 return NT_STATUS_ACCESS_DENIED
;
113 } else if(flags
& O_CREAT
) {
114 /* We don't want to write - but we must make sure that
115 O_CREAT doesn't create the file if we have write
116 access into the directory.
119 local_flags
&= ~O_CREAT
;
124 * This little piece of insanity is inspired by the
125 * fact that an NT client can open a file for O_RDONLY,
126 * but set the create disposition to FILE_EXISTS_TRUNCATE.
127 * If the client *can* write to the file, then it expects to
128 * truncate the file, even though it is opening for readonly.
129 * Quicken uses this stupid trick in backup file creation...
130 * Thanks *greatly* to "David W. Chapman Jr." <dwcjr@inethouston.net>
131 * for helping track this one down. It didn't bite us in 2.0.x
132 * as we always opened files read-write in that release. JRA.
135 if ((accmode
== O_RDONLY
) && ((flags
& O_TRUNC
) == O_TRUNC
)) {
136 DEBUG(10,("onefs_open_file: truncate requested on read-only "
137 "open for file %s\n", smb_fname_str_dbg(smb_fname
)));
138 local_flags
= (flags
& ~O_ACCMODE
)|O_RDWR
;
141 #if defined(O_NONBLOCK) && defined(S_ISFIFO)
143 * We would block on opening a FIFO with no one else on the
144 * other end. Do what we used to do and add O_NONBLOCK to the
148 if (file_existed
&& S_ISFIFO(smb_fname
->st
.st_ex_mode
)) {
149 local_flags
|= O_NONBLOCK
;
153 /* Don't create files with Microsoft wildcard characters. */
156 * wildcard characters are allowed in stream names
157 * only test the basefilename
159 wild
= fsp
->base_fsp
->fsp_name
->base_name
;
161 wild
= smb_fname
->base_name
;
163 if ((local_flags
& O_CREAT
) && !file_existed
&&
166 * XXX: may need to remvoe this return...
168 * We dont think this check needs to exist. All it does is
169 * block creating files with Microsoft wildcards, which is
170 * fine if the creation originated from NFS or locally and
171 * then was copied via Samba.
173 DEBUG(1, ("onefs_open_file: creating file with wildcard: %s\n",
174 smb_fname_str_dbg(smb_fname
)));
175 return NT_STATUS_OBJECT_NAME_INVALID
;
178 /* Actually do the open */
182 * Never follow symlinks on a POSIX client. The
183 * client should be doing this.
186 if (fsp
->posix_open
|| !lp_symlinks(SNUM(conn
))) {
190 /* Setup a onefs-style smb_fname struct. */
191 status
= onefs_stream_prep_smb_fname(talloc_tos(), smb_fname
,
193 if (!NT_STATUS_IS_OK(status
)) {
197 /* If it's a stream pass in the base_fd */
198 if ((conn
->fs_capabilities
& FILE_NAMED_STREAMS
) &&
199 is_ntfs_stream_smb_fname(smb_fname_onefs
)) {
200 SMB_ASSERT(fsp
->base_fsp
);
202 DEBUG(10, ("Opening a stream: base=%s(%d), stream=%s\n",
203 smb_fname_onefs
->base_name
, fsp
->base_fsp
->fh
->fd
,
204 smb_fname_onefs
->stream_name
));
206 base_fd
= fsp
->base_fsp
->fh
->fd
;
209 fsp
->fh
->fd
= onefs_sys_create_file(conn
,
211 smb_fname_onefs
->stream_name
!= NULL
?
212 smb_fname_onefs
->stream_name
:
213 smb_fname_onefs
->base_name
,
225 TALLOC_FREE(smb_fname_onefs
);
227 if (fsp
->fh
->fd
== -1) {
228 if (errno
== EMFILE
) {
229 static time_t last_warned
= 0L;
231 if (time((time_t *) NULL
) > last_warned
) {
232 DEBUG(0, ("Too many open files, unable "
233 "to open more! smbd's max "
234 "open files = %d, also check "
235 "sysctl kern.maxfiles and "
236 "sysctl kern.maxfilesperproc\n",
237 lp_max_open_files()));
238 last_warned
= time((time_t *) NULL
);
242 status
= map_nt_error_from_unix(errno
);
243 DEBUG(3, ("Error opening file %s (%s) (local_flags=%d) "
244 "(flags=%d)\n", smb_fname_str_dbg(smb_fname
),
245 strerror(errno
), local_flags
, flags
));
249 if ((local_flags
& O_CREAT
) && !file_existed
) {
251 /* Inherit the ACL if required */
252 if (lp_inherit_perms(SNUM(conn
))) {
253 inherit_access_posix_acl(conn
, parent_dir
,
254 smb_fname
->base_name
, unx_mode
);
257 /* Change the owner if required. */
258 if (lp_inherit_owner(SNUM(conn
))) {
259 change_file_owner_to_parent(conn
, parent_dir
,
263 notify_fname(conn
, NOTIFY_ACTION_ADDED
,
264 FILE_NOTIFY_CHANGE_FILE_NAME
, smb_fname
->base_name
);
270 if (fsp
->fh
->fd
== -1) {
271 ret
= SMB_VFS_STAT(conn
, smb_fname
);
273 ret
= SMB_VFS_FSTAT(fsp
, &smb_fname
->st
);
274 /* If we have an fd, this stat should succeed. */
276 DEBUG(0, ("Error doing fstat on open file %s "
278 smb_fname_str_dbg(smb_fname
),
283 /* For a non-io open, this stat failing means file not found. JRA */
285 status
= map_nt_error_from_unix(errno
);
292 * POSIX allows read-only opens of directories. We don't
293 * want to do this (we use a different code path for this)
294 * so catch a directory open and return an EISDIR. JRA.
297 if(S_ISDIR(smb_fname
->st
.st_ex_mode
)) {
300 return NT_STATUS_FILE_IS_A_DIRECTORY
;
303 fsp
->mode
= smb_fname
->st
.st_ex_mode
;
304 fsp
->file_id
= vfs_file_id_from_sbuf(conn
, &smb_fname
->st
);
305 fsp
->vuid
= req
? req
->vuid
: UID_FIELD_INVALID
;
306 fsp
->file_pid
= req
? req
->smbpid
: 0;
307 fsp
->can_lock
= True
;
308 fsp
->can_read
= (access_mask
& (FILE_READ_DATA
)) ? True
: False
;
309 if (!CAN_WRITE(conn
)) {
310 fsp
->can_write
= False
;
312 fsp
->can_write
= (access_mask
& (FILE_WRITE_DATA
| FILE_APPEND_DATA
)) ?
315 fsp
->print_file
= False
;
316 fsp
->modified
= False
;
317 fsp
->sent_oplock_break
= NO_BREAK_SENT
;
318 fsp
->is_directory
= False
;
319 if (conn
->aio_write_behind_list
&&
320 is_in_path(smb_fname
->base_name
, conn
->aio_write_behind_list
,
321 conn
->case_sensitive
)) {
322 fsp
->aio_write_behind
= True
;
325 fsp
->wcp
= NULL
; /* Write cache pointer. */
327 DEBUG(2,("%s opened file %s read=%s write=%s (numopen=%d)\n",
328 conn
->server_info
->unix_name
,
329 smb_fname_str_dbg(smb_fname
),
330 BOOLSTR(fsp
->can_read
), BOOLSTR(fsp
->can_write
),
331 conn
->num_files_open
));
337 /****************************************************************************
338 Handle the 1 second delay in returning a SHARING_VIOLATION error.
339 ****************************************************************************/
341 static void defer_open(struct share_mode_lock
*lck
,
342 struct timeval request_time
,
343 struct timeval timeout
,
344 struct smb_request
*req
,
345 struct deferred_open_record
*state
)
351 for (i
=0; i
<lck
->num_share_modes
; i
++) {
352 struct share_mode_entry
*e
= &lck
->share_modes
[i
];
354 if (!is_deferred_open_entry(e
)) {
358 if (procid_is_me(&e
->pid
) && (e
->op_mid
== req
->mid
)) {
359 DEBUG(0, ("Trying to defer an already deferred "
360 "request: mid=%d, exiting\n", req
->mid
));
361 exit_server("attempt to defer a deferred request");
365 /* End paranoia check */
367 DEBUG(10,("defer_open_sharing_error: time [%u.%06u] adding deferred "
368 "open entry for mid %u\n",
369 (unsigned int)request_time
.tv_sec
,
370 (unsigned int)request_time
.tv_usec
,
371 (unsigned int)req
->mid
));
373 if (!push_deferred_smb_message(req
, request_time
, timeout
,
374 (char *)state
, sizeof(*state
))) {
375 exit_server("push_deferred_smb_message failed");
377 add_deferred_open(lck
, req
->mid
, request_time
, state
->id
);
380 static void schedule_defer_open(struct share_mode_lock
*lck
,
381 struct timeval request_time
,
382 struct smb_request
*req
)
384 struct deferred_open_record state
;
386 /* This is a relative time, added to the absolute
387 request_time value to get the absolute timeout time.
388 Note that if this is the second or greater time we enter
389 this codepath for this particular request mid then
390 request_time is left as the absolute time of the *first*
391 time this request mid was processed. This is what allows
392 the request to eventually time out. */
394 struct timeval timeout
;
396 /* Normally the smbd we asked should respond within
397 * OPLOCK_BREAK_TIMEOUT seconds regardless of whether
398 * the client did, give twice the timeout as a safety
399 * measure here in case the other smbd is stuck
403 * On OneFS, the kernel will always send an oplock_revoked message
404 * before this timeout is hit.
406 timeout
= timeval_set(OPLOCK_BREAK_TIMEOUT
*10, 0);
408 /* Nothing actually uses state.delayed_for_oplocks
409 but it's handy to differentiate in debug messages
410 between a 30 second delay due to oplock break, and
411 a 1 second delay for share mode conflicts. */
413 state
.delayed_for_oplocks
= True
;
414 state
.failed
= false;
417 if (!request_timed_out(request_time
, timeout
)) {
418 defer_open(lck
, request_time
, timeout
, req
, &state
);
420 /* A delayed-for-oplocks deferred open timing out should only
421 * happen if there is a bug or extreme load, since we set the
422 * timeout to 300 seconds. */
423 DEBUG(0, ("Deferred open timeout! request_time=%d.%d, "
424 "mid=%d\n", request_time
.tv_sec
, request_time
.tv_usec
,
429 /****************************************************************************
430 Open a file with a share mode. Passed in an already created files_struct.
431 ****************************************************************************/
432 NTSTATUS
onefs_open_file_ntcreate(connection_struct
*conn
,
433 struct smb_request
*req
,
434 struct smb_filename
*smb_fname
,
437 uint32 create_disposition
,
438 uint32 create_options
,
439 uint32 new_dos_attributes
,
441 struct security_descriptor
*sd
,
444 struct onefs_fsp_data
*fsp_data
)
448 bool file_existed
= VALID_STAT(smb_fname
->st
);
449 bool def_acl
= False
;
450 bool posix_open
= False
;
451 bool new_file_created
= False
;
452 bool clear_ads
= False
;
454 mode_t new_unx_mode
= (mode_t
)0;
455 mode_t unx_mode
= (mode_t
)0;
457 uint32 existing_dos_attributes
= 0;
458 struct pending_message_list
*pml
= NULL
;
459 struct timeval request_time
= timeval_zero();
460 struct share_mode_lock
*lck
= NULL
;
461 uint32 open_access_mask
= access_mask
;
466 uint64_t oplock_callback_id
= 0;
467 uint32 createfile_attributes
= 0;
473 * Printers are handled completely differently.
474 * Most of the passed parameters are ignored.
478 *pinfo
= FILE_WAS_CREATED
;
481 DEBUG(10, ("onefs_open_file_ntcreate: printer open fname=%s\n",
482 smb_fname_str_dbg(smb_fname
)));
484 return print_fsp_open(req
, conn
, smb_fname
->base_name
,
488 if (!parent_dirname(talloc_tos(), smb_fname
->base_name
, &parent_dir
,
490 return NT_STATUS_NO_MEMORY
;
493 if (new_dos_attributes
& FILE_FLAG_POSIX_SEMANTICS
) {
495 unx_mode
= (mode_t
)(new_dos_attributes
& ~FILE_FLAG_POSIX_SEMANTICS
);
496 new_dos_attributes
= 0;
498 /* We add aARCH to this as this mode is only used if the file is
500 unx_mode
= unix_mode(conn
, new_dos_attributes
| aARCH
,
501 smb_fname
, parent_dir
);
504 DEBUG(10,("onefs_open_file_ntcreate: fname=%s, dos_attrs=0x%x "
505 "access_mask=0x%x share_access=0x%x "
506 "create_disposition = 0x%x create_options=0x%x "
507 "unix mode=0%o oplock_request=0x%x\n",
508 smb_fname_str_dbg(smb_fname
), new_dos_attributes
,
509 access_mask
, share_access
, create_disposition
,
510 create_options
, unx_mode
, oplock_request
));
513 * Any non-stat-only open has the potential to contend oplocks, which
514 * means to avoid blocking in the kernel (which is unacceptable), the
515 * open must be deferred. In order to defer opens, req must not be
516 * NULL. The known cases of calling with a NULL req:
518 * 1. Open the base file of a stream: Always done stat-only
520 * 2. open_file_fchmod(), which is called from 3 places:
521 * A. try_chown: Posix acls only. Never called on onefs.
522 * B. set_ea_dos_attributes: Can't be called from onefs, because
523 * SMB_VFS_SETXATTR return ENOSYS.
524 * C. file_set_dos_mode: This would only happen if the "dos
525 * filemode" smb.conf parameter is set to yes. We ship with
526 * it off, but if a customer were to turn it on it would be
529 if (req
== NULL
&& !is_stat_open(access_mask
) &&
530 !is_ntfs_stream_smb_fname(smb_fname
)) {
531 smb_panic("NULL req on a non-stat-open!");
534 if ((req
== NULL
) && ((oplock_request
& INTERNAL_OPEN_ONLY
) == 0)) {
535 DEBUG(0, ("No smb request but not an internal only open!\n"));
536 return NT_STATUS_INTERNAL_ERROR
;
540 * Only non-internal opens can be deferred at all
544 && ((pml
= get_open_deferred_message(req
->mid
)) != NULL
)) {
545 struct deferred_open_record
*state
=
546 (struct deferred_open_record
*)pml
->private_data
.data
;
548 /* Remember the absolute time of the original
549 request with this mid. We'll use it later to
550 see if this has timed out. */
552 request_time
= pml
->request_time
;
554 /* Remove the deferred open entry under lock. */
555 lck
= get_share_mode_lock(talloc_tos(), state
->id
, NULL
, NULL
,
558 DEBUG(0, ("could not get share mode lock\n"));
560 del_deferred_open_entry(lck
, req
->mid
);
564 /* Ensure we don't reprocess this message. */
565 remove_deferred_open_smb_message(req
->mid
);
568 * When receiving a semlock_async_failure message, the
569 * deferred open will be marked as "failed". Returning
573 DEBUG(0, ("onefs_open_file_ntcreate: "
574 "semlock_async_failure detected!\n"));
575 return NT_STATUS_INTERNAL_ERROR
;
579 status
= check_name(conn
, smb_fname
->base_name
);
580 if (!NT_STATUS_IS_OK(status
)) {
585 new_dos_attributes
&= SAMBA_ATTRIBUTES_MASK
;
587 existing_dos_attributes
= dos_mode(conn
, smb_fname
);
591 /* Setup dos_attributes to be set by ifs_createfile */
592 if (lp_store_dos_attributes(SNUM(conn
))) {
593 createfile_attributes
= (new_dos_attributes
| aARCH
) &
594 ~(FILE_ATTRIBUTE_NONINDEXED
| FILE_ATTRIBUTE_COMPRESSED
);
597 /* Ignore oplock requests if oplocks are disabled. */
598 if (!lp_oplocks(SNUM(conn
)) || global_client_failed_oplock_break
||
599 IS_VETO_OPLOCK_PATH(conn
, smb_fname
->base_name
)) {
600 /* Mask off everything except the private Samba bits. */
601 oplock_request
&= SAMBA_PRIVATE_OPLOCK_MASK
;
604 /* this is for OS/2 long file names - say we don't support them */
605 if (!lp_posix_pathnames() && strstr(smb_fname
->base_name
,".+,;=[].")) {
606 /* OS/2 Workplace shell fix may be main code stream in a later
608 DEBUG(5,("onefs_open_file_ntcreate: OS/2 long filenames are "
609 "not supported.\n"));
610 if (use_nt_status()) {
611 return NT_STATUS_OBJECT_NAME_NOT_FOUND
;
613 return NT_STATUS_DOS(ERRDOS
, ERRcannotopen
);
616 switch( create_disposition
) {
618 * Currently we're using FILE_SUPERSEDE as the same as
619 * FILE_OVERWRITE_IF but they really are
620 * different. FILE_SUPERSEDE deletes an existing file
621 * (requiring delete access) then recreates it.
625 * @todo: Clear all file attributes?
626 * http://www.osronline.com/article.cfm?article=302
627 * create if not exist, trunc if exist
629 * If file exists replace/overwrite. If file doesn't
632 flags2
|= (O_CREAT
| O_TRUNC
);
636 case FILE_OVERWRITE_IF
:
637 /* If file exists replace/overwrite. If file doesn't
639 flags2
|= (O_CREAT
| O_TRUNC
);
644 /* If file exists open. If file doesn't exist error. */
646 DEBUG(5,("onefs_open_file_ntcreate: FILE_OPEN "
647 "requested for file %s and file "
649 smb_fname_str_dbg(smb_fname
)));
651 return NT_STATUS_OBJECT_NAME_NOT_FOUND
;
656 /* If file exists overwrite. If file doesn't exist
659 DEBUG(5, ("onefs_open_file_ntcreate: "
660 "FILE_OVERWRITE requested for file "
661 "%s and file doesn't exist.\n",
662 smb_fname_str_dbg(smb_fname
)));
664 return NT_STATUS_OBJECT_NAME_NOT_FOUND
;
671 /* If file exists error. If file doesn't exist
674 DEBUG(5, ("onefs_open_file_ntcreate: "
675 "FILE_CREATE requested for file %s "
676 "and file already exists.\n",
677 smb_fname_str_dbg(smb_fname
)));
678 if (S_ISDIR(smb_fname
->st
.st_ex_mode
)) {
683 return map_nt_error_from_unix(errno
);
685 flags2
|= (O_CREAT
|O_EXCL
);
689 /* If file exists open. If file doesn't exist
695 return NT_STATUS_INVALID_PARAMETER
;
698 /* Match attributes on file exists and overwrite. */
699 if (!posix_open
&& file_existed
&&
700 ((create_disposition
== FILE_OVERWRITE
) ||
701 (create_disposition
== FILE_OVERWRITE_IF
))) {
702 if (!open_match_attributes(conn
, existing_dos_attributes
,
704 smb_fname
->st
.st_ex_mode
,
705 unx_mode
, &new_unx_mode
)) {
706 DEBUG(5, ("onefs_open_file_ntcreate: attributes "
707 "missmatch for file %s (%x %x) (0%o, 0%o)\n",
708 smb_fname_str_dbg(smb_fname
),
709 existing_dos_attributes
,
711 (unsigned int)smb_fname
->st
.st_ex_mode
,
712 (unsigned int)unx_mode
));
714 return NT_STATUS_ACCESS_DENIED
;
719 * OneFS understands MAXIMUM_ALLOWED_ACCESS, so only hack the
720 * access_mask, but leave the MAA for the actual open in
723 open_access_mask
= access_mask
;
724 if (open_access_mask
& MAXIMUM_ALLOWED_ACCESS
) {
725 access_mask
|= FILE_GENERIC_ALL
;
728 /* Convert GENERIC bits to specific bits. */
729 se_map_generic(&access_mask
, &file_generic_mapping
);
730 se_map_generic(&open_access_mask
, &file_generic_mapping
);
732 if ((flags2
& O_TRUNC
) || (oplock_request
& FORCE_OPLOCK_BREAK_TO_NONE
)) {
733 /* This will cause oplock breaks. */
734 open_access_mask
|= FILE_WRITE_DATA
;
737 DEBUG(10, ("onefs_open_file_ntcreate: fname=%s, after mapping "
738 "open_access_mask=%#x, access_mask=0x%x\n",
739 smb_fname_str_dbg(smb_fname
), open_access_mask
,
743 * Note that we ignore the append flag as append does not
744 * mean the same thing under DOS and Unix.
747 if ((access_mask
& (FILE_WRITE_DATA
| FILE_APPEND_DATA
)) ||
748 (oplock_request
& FORCE_OPLOCK_BREAK_TO_NONE
)) {
751 * DENY_DOS opens are always underlying read-write on the
752 * file handle, no matter what the requested access mask
753 * says. Stock samba just sets the flags, but since
754 * ifs_createfile uses the access_mask, it must be updated as
755 * well. This allows BASE-DENY* to pass.
757 if (create_options
& NTCREATEX_OPTIONS_PRIVATE_DENY_DOS
) {
759 DEBUG(10,("onefs_open_file_ntcreate: deny_dos: "
760 "Adding O_RDWR to flags "
761 "(0x%x) and some READ bits to "
762 "open_access_mask (0x%x)\n",
763 flags
, open_access_mask
));
766 open_access_mask
|= (FILE_READ_ATTRIBUTES
|
767 FILE_READ_DATA
| FILE_READ_EA
| FILE_EXECUTE
);
769 } else if (access_mask
& (FILE_READ_ATTRIBUTES
|
781 /* Currently we only look at FILE_WRITE_THROUGH for create options. */
783 if ((create_options
& FILE_WRITE_THROUGH
) &&
784 lp_strict_sync(SNUM(conn
))) {
789 if (posix_open
&& (access_mask
& FILE_APPEND_DATA
)) {
793 if (!posix_open
&& !CAN_WRITE(conn
)) {
795 * We should really return a permission denied error if either
796 * O_CREAT or O_TRUNC are set, but for compatibility with
797 * older versions of Samba we just AND them out.
799 flags2
&= ~(O_CREAT
|O_TRUNC
);
801 /* Deny DELETE_ACCESS explicitly if the share is read only. */
802 if (access_mask
& DELETE_ACCESS
) {
803 return map_nt_error_from_unix(EACCES
);
807 /* Ensure we can't write on a read-only share or file. */
808 if (flags
!= O_RDONLY
&& file_existed
&&
809 (!CAN_WRITE(conn
) || IS_DOS_READONLY(existing_dos_attributes
))) {
810 DEBUG(5, ("onefs_open_file_ntcreate: write access requested "
811 "for file %s on read only %s\n",
812 smb_fname_str_dbg(smb_fname
),
813 !CAN_WRITE(conn
) ? "share" : "file" ));
815 return NT_STATUS_ACCESS_DENIED
;
818 DEBUG(10, ("fsp = %p\n", fsp
));
820 fsp
->share_access
= share_access
;
821 fsp
->fh
->private_options
= create_options
;
822 fsp
->access_mask
= open_access_mask
; /* We change this to the
823 * requested access_mask after
824 * the open is done. */
825 fsp
->posix_open
= posix_open
;
827 /* Ensure no SAMBA_PRIVATE bits can be set. */
828 fsp
->oplock_type
= (oplock_request
& ~SAMBA_PRIVATE_OPLOCK_MASK
);
830 if (timeval_is_zero(&request_time
)) {
831 request_time
= fsp
->open_time
;
835 struct timespec old_write_time
= smb_fname
->st
.st_ex_mtime
;
836 id
= vfs_file_id_from_sbuf(conn
, &smb_fname
->st
);
838 lck
= get_share_mode_lock(talloc_tos(), id
,
840 smb_fname
, &old_write_time
);
843 DEBUG(0, ("Could not get share mode lock\n"));
844 return NT_STATUS_SHARING_VIOLATION
;
847 if (lck
->delete_on_close
) {
848 /* DELETE_PENDING is not deferred for a second */
850 return NT_STATUS_DELETE_PENDING
;
854 SMB_ASSERT(!file_existed
|| (lck
!= NULL
));
857 * Ensure we pay attention to default ACLs on directories. May be
858 * neccessary depending on ACL policies.
860 if ((flags2
& O_CREAT
) && lp_inherit_acls(SNUM(conn
)) &&
861 (def_acl
= directory_has_default_acl(conn
, parent_dir
))) {
865 DEBUG(4,("calling onefs_open_file with flags=0x%X flags2=0x%X "
866 "mode=0%o, access_mask = 0x%x, open_access_mask = 0x%x\n",
867 (unsigned int)flags
, (unsigned int)flags2
,
868 (unsigned int)unx_mode
, (unsigned int)access_mask
,
869 (unsigned int)open_access_mask
));
872 * Since the open is guaranteed to be stat only if req == NULL, a
873 * callback record is only needed if req != NULL.
876 SMB_ASSERT(fsp_data
);
877 oplock_callback_id
= onefs_oplock_wait_record(req
->mid
);
878 if (oplock_callback_id
== 0) {
879 return NT_STATUS_NO_MEMORY
;
883 * It is also already asserted it's either a stream or a
884 * stat-only open at this point.
886 SMB_ASSERT(fsp
->oplock_type
== NO_OPLOCK
);
888 /* The kernel and Samba's version of stat-only differs
889 * slightly: The kernel doesn't think its stat-only if we're
890 * truncating. We'd better have a req in order to defer the
892 SMB_ASSERT(!((flags
|flags2
) & O_TRUNC
));
896 status
= onefs_open_file(fsp
,
909 createfile_attributes
,
913 if (!NT_STATUS_IS_OK(status
)) {
915 /* OneFS Oplock Handling */
916 if (errno
== EINPROGRESS
) {
918 /* If we get EINPROGRESS, the kernel will send us an
919 * asynchronous semlock event back. Ensure we can defer
920 * the open, by asserting req. */
925 * We hit the race that when we did the stat
926 * on the file it did not exist, and someone
927 * has created it in between the stat and the
928 * open_file() call. Defer our open waiting,
929 * to break the oplock of the first opener.
932 struct timespec old_write_time
;
934 DEBUG(3, ("Someone created file %s with an "
935 "oplock after we looked: Retrying\n",
936 smb_fname_str_dbg(smb_fname
)));
938 * We hit the race that when we did the stat
939 * on the file it did not exist, and someone
940 * has created it in between the stat and the
941 * open_file() call. Just retry immediately.
943 id
= vfs_file_id_from_sbuf(conn
,
945 if (!(lck
= get_share_mode_lock(talloc_tos(),
946 id
, conn
->connectpath
, smb_fname
,
951 DEBUG(0, ("onefs_open_file_ntcreate: "
952 "Could not get share mode "
954 smb_fname_str_dbg(smb_fname
)));
955 status
= NT_STATUS_SHARING_VIOLATION
;
957 /* XXXZLK: This will cause us to get a
958 * semlock event when we aren't
960 goto cleanup_destroy
;
963 schedule_defer_open(lck
, request_time
, req
);
966 /* Waiting for an oplock */
967 DEBUG(5,("Async createfile because a client has an "
969 smb_fname_str_dbg(smb_fname
)));
972 schedule_defer_open(lck
, request_time
, req
);
976 /* Check for a sharing violation */
977 if ((errno
== EAGAIN
) || (errno
== EWOULDBLOCK
)) {
978 uint32 can_access_mask
;
979 bool can_access
= True
;
981 /* If we raced on open we may not have a valid file_id
982 * or stat buf. Get them again. */
983 if (SMB_VFS_STAT(conn
, fname
, psbuf
) == -1) {
984 DEBUG(0,("Error doing stat on file %s "
985 "(%s)\n", fname
, strerror(errno
)));
986 status
= NT_STATUS_SHARING_VIOLATION
;
987 goto cleanup_destroy
;
989 id
= vfs_file_id_from_sbuf(conn
, psbuf
);
991 /* Check if this can be done with the deny_dos and fcb
994 /* Try to find dup fsp if possible. */
996 (NTCREATEX_OPTIONS_PRIVATE_DENY_DOS
|
997 NTCREATEX_OPTIONS_PRIVATE_DENY_FCB
)) {
1000 DEBUG(0, ("DOS open without an SMB "
1002 status
= NT_STATUS_INTERNAL_ERROR
;
1003 goto cleanup_destroy
;
1006 /* Use the client requested access mask here,
1007 * not the one we open with. */
1008 status
= fcb_or_dos_open(req
,
1019 if (NT_STATUS_IS_OK(status
)) {
1021 *pinfo
= FILE_WAS_OPENED
;
1023 status
= NT_STATUS_OK
;
1029 * This next line is a subtlety we need for
1030 * MS-Access. If a file open will fail due to share
1031 * permissions and also for security (access) reasons,
1032 * we need to return the access failed error, not the
1033 * share error. We can't open the file due to kernel
1034 * oplock deadlock (it's possible we failed above on
1035 * the open_mode_check()) so use a userspace check.
1038 if (flags
& O_RDWR
) {
1039 can_access_mask
= FILE_READ_DATA
|FILE_WRITE_DATA
;
1040 } else if (flags
& O_WRONLY
) {
1041 can_access_mask
= FILE_WRITE_DATA
;
1043 can_access_mask
= FILE_READ_DATA
;
1046 if (((can_access_mask
& FILE_WRITE_DATA
) &&
1047 !CAN_WRITE(conn
)) ||
1048 !can_access_file_data(conn
, smb_fname
,
1054 * If we're returning a share violation, ensure we
1055 * cope with the braindead 1 second delay.
1057 if (!(oplock_request
& INTERNAL_OPEN_ONLY
) &&
1058 lp_defer_sharing_violations()) {
1059 struct timeval timeout
;
1060 struct deferred_open_record state
;
1063 /* this is a hack to speed up torture tests
1065 timeout_usecs
= lp_parm_int(SNUM(conn
),
1066 "smbd","sharedelay",
1067 SHARING_VIOLATION_USEC_WAIT
);
1069 /* This is a relative time, added to the
1070 absolute request_time value to get the
1071 absolute timeout time. Note that if this
1072 is the second or greater time we enter this
1073 codepath for this particular request mid
1074 then request_time is left as the absolute
1075 time of the *first* time this request mid
1076 was processed. This is what allows the
1077 request to eventually time out. */
1079 timeout
= timeval_set(0, timeout_usecs
);
1081 /* Nothing actually uses
1082 state.delayed_for_oplocks but it's handy to
1083 differentiate in debug messages between a
1084 30 second delay due to oplock break, and a
1085 1 second delay for share mode conflicts. */
1087 state
.delayed_for_oplocks
= False
;
1089 state
.failed
= false;
1092 * We hit the race that when we did the stat
1093 * on the file it did not exist, and someone
1094 * has created it in between the stat and the
1095 * open_file() call. Retrieve the share_mode
1096 * lock on the newly opened file so we can
1097 * defer our request.
1100 struct timespec old_write_time
;
1101 old_write_time
= get_mtimespec(psbuf
);
1103 lck
= get_share_mode_lock(talloc_tos(),
1104 id
, conn
->connectpath
, fname
,
1108 ("onefs_open_file_ntcreate:"
1109 " Could not get share "
1110 "mode lock for %s\n",
1112 /* This will cause us to return
1113 * immediately skipping the
1114 * the 1 second delay, which
1115 * isn't a big deal */
1116 status
= NT_STATUS_SHARING_VIOLATION
;
1117 goto cleanup_destroy
;
1121 if ((req
!= NULL
) &&
1122 !request_timed_out(request_time
, timeout
))
1124 defer_open(lck
, request_time
, timeout
,
1131 * We have detected a sharing violation here
1132 * so return the correct error code
1134 status
= NT_STATUS_SHARING_VIOLATION
;
1136 status
= NT_STATUS_ACCESS_DENIED
;
1139 goto cleanup_destroy
;
1143 * Normal error, for example EACCES
1146 if (oplock_callback_id
!= 0) {
1147 destroy_onefs_callback_record(oplock_callback_id
);
1154 fsp
->oplock_type
= granted_oplock
;
1156 if (oplock_callback_id
!= 0) {
1157 onefs_set_oplock_callback(oplock_callback_id
, fsp
);
1158 fsp_data
->oplock_callback_id
= oplock_callback_id
;
1160 SMB_ASSERT(fsp
->oplock_type
== NO_OPLOCK
);
1163 if (!file_existed
) {
1164 struct timespec old_write_time
= smb_fname
->st
.st_ex_mtime
;
1166 * Deal with the race condition where two smbd's detect the
1167 * file doesn't exist and do the create at the same time. One
1168 * of them will win and set a share mode, the other (ie. this
1169 * one) should check if the requested share mode for this
1170 * create is allowed.
1174 * Now the file exists and fsp is successfully opened,
1175 * fsp->file_id is valid and should replace the
1176 * dev=0, inode=0 from a non existent file. Spotted by
1177 * Nadav Danieli <nadavd@exanet.com>. JRA.
1182 lck
= get_share_mode_lock(talloc_tos(), id
,
1184 smb_fname
, &old_write_time
);
1187 DEBUG(0, ("onefs_open_file_ntcreate: Could not get "
1188 "share mode lock for %s\n",
1189 smb_fname_str_dbg(smb_fname
)));
1191 return NT_STATUS_SHARING_VIOLATION
;
1194 if (lck
->delete_on_close
) {
1195 status
= NT_STATUS_DELETE_PENDING
;
1198 if (!NT_STATUS_IS_OK(status
)) {
1199 struct deferred_open_record state
;
1203 state
.delayed_for_oplocks
= False
;
1206 /* Do it all over again immediately. In the second
1207 * round we will find that the file existed and handle
1208 * the DELETE_PENDING and FCB cases correctly. No need
1209 * to duplicate the code here. Essentially this is a
1210 * "goto top of this function", but don't tell
1214 defer_open(lck
, request_time
, timeval_zero(),
1222 * We exit this block with the share entry *locked*.....
1227 SMB_ASSERT(lck
!= NULL
);
1229 /* Delete streams if create_disposition requires it */
1230 if (file_existed
&& clear_ads
&&
1231 !is_ntfs_stream_smb_fname(smb_fname
)) {
1232 status
= delete_all_streams(conn
, smb_fname
->base_name
);
1233 if (!NT_STATUS_IS_OK(status
)) {
1240 /* note that we ignore failure for the following. It is
1241 basically a hack for NFS, and NFS will never set one of
1242 these only read them. Nobody but Samba can ever set a deny
1243 mode and we have already checked our more authoritative
1244 locking database for permission to set this deny mode. If
1245 the kernel refuses the operations then the kernel is wrong.
1246 note that GPFS supports it as well - jmcd */
1248 if (fsp
->fh
->fd
!= -1) {
1249 ret_flock
= SMB_VFS_KERNEL_FLOCK(fsp
, share_access
, access_mask
);
1250 if(ret_flock
== -1 ){
1254 return NT_STATUS_SHARING_VIOLATION
;
1259 * At this point onwards, we can guarentee that the share entry
1260 * is locked, whether we created the file or not, and that the
1261 * deny mode is compatible with all current opens.
1264 /* Record the options we were opened with. */
1265 fsp
->share_access
= share_access
;
1266 fsp
->fh
->private_options
= create_options
;
1268 * According to Samba4, SEC_FILE_READ_ATTRIBUTE is always granted,
1270 fsp
->access_mask
= access_mask
| FILE_READ_ATTRIBUTES
;
1273 /* stat opens on existing files don't get oplocks. */
1274 if (is_stat_open(open_access_mask
)) {
1275 fsp
->oplock_type
= NO_OPLOCK
;
1278 if (!(flags2
& O_TRUNC
)) {
1279 info
= FILE_WAS_OPENED
;
1281 info
= FILE_WAS_OVERWRITTEN
;
1284 info
= FILE_WAS_CREATED
;
1292 * Setup the oplock info in both the shared memory and
1296 if ((fsp
->oplock_type
!= NO_OPLOCK
) &&
1297 (fsp
->oplock_type
!= FAKE_LEVEL_II_OPLOCK
)) {
1298 if (!set_file_oplock(fsp
, fsp
->oplock_type
)) {
1299 /* Could not get the kernel oplock */
1300 fsp
->oplock_type
= NO_OPLOCK
;
1304 if (fsp
->oplock_type
== LEVEL_II_OPLOCK
&&
1305 (!lp_level2_oplocks(SNUM(conn
)) ||
1306 !(global_client_caps
& CAP_LEVEL_II_OPLOCKS
))) {
1308 DEBUG(5, ("Downgrading level2 oplock on open "
1309 "because level2 oplocks = off\n"));
1311 release_file_oplock(fsp
);
1314 if (info
== FILE_WAS_OVERWRITTEN
|| info
== FILE_WAS_CREATED
||
1315 info
== FILE_WAS_SUPERSEDED
) {
1316 new_file_created
= True
;
1319 set_share_mode(lck
, fsp
, conn
->server_info
->utok
.uid
, 0,
1322 /* Handle strange delete on close create semantics. */
1323 if (create_options
& FILE_DELETE_ON_CLOSE
) {
1324 status
= can_set_delete_on_close(fsp
, new_dos_attributes
);
1326 if (!NT_STATUS_IS_OK(status
)) {
1327 /* Remember to delete the mode we just added. */
1328 del_share_mode(lck
, fsp
);
1333 /* Note that here we set the *inital* delete on close flag,
1334 not the regular one. The magic gets handled in close. */
1335 fsp
->initial_delete_on_close
= True
;
1339 * Take care of inherited ACLs on created files - if default ACL not
1341 * May be necessary depending on acl policies.
1343 if (!posix_open
&& !file_existed
&& !def_acl
&&
1344 !(VALID_STAT(smb_fname
->st
) &&
1345 (smb_fname
->st
.st_ex_flags
& SF_HASNTFSACL
))) {
1347 int saved_errno
= errno
; /* We might get ENOSYS in the next
1350 if (SMB_VFS_FCHMOD_ACL(fsp
, unx_mode
) == -1 &&
1352 errno
= saved_errno
; /* Ignore ENOSYS */
1355 } else if (new_unx_mode
) {
1359 /* Attributes need changing. File already existed. */
1362 int saved_errno
= errno
; /* We might get ENOSYS in the
1364 ret
= SMB_VFS_FCHMOD_ACL(fsp
, new_unx_mode
);
1366 if (ret
== -1 && errno
== ENOSYS
) {
1367 errno
= saved_errno
; /* Ignore ENOSYS */
1369 DEBUG(5, ("onefs_open_file_ntcreate: reset "
1370 "attributes of file %s to 0%o\n",
1371 smb_fname_str_dbg(smb_fname
),
1372 (unsigned int)new_unx_mode
));
1373 ret
= 0; /* Don't do the fchmod below. */
1378 (SMB_VFS_FCHMOD(fsp
, new_unx_mode
) == -1))
1379 DEBUG(5, ("onefs_open_file_ntcreate: failed to reset "
1380 "attributes of file %s to 0%o\n",
1381 smb_fname_str_dbg(smb_fname
),
1382 (unsigned int)new_unx_mode
));
1385 /* If this is a successful open, we must remove any deferred open
1388 del_deferred_open_entry(lck
, req
->mid
);
1392 return NT_STATUS_OK
;
1396 /****************************************************************************
1397 Open a directory from an NT SMB call.
1398 ****************************************************************************/
1399 static NTSTATUS
onefs_open_directory(connection_struct
*conn
,
1400 struct smb_request
*req
,
1401 struct smb_filename
*smb_dname
,
1403 uint32 share_access
,
1404 uint32 create_disposition
,
1405 uint32 create_options
,
1406 uint32 file_attributes
,
1407 struct security_descriptor
*sd
,
1408 files_struct
**result
,
1411 files_struct
*fsp
= NULL
;
1412 struct share_mode_lock
*lck
= NULL
;
1414 struct timespec mtimespec
;
1417 bool posix_open
= false;
1418 uint32 create_flags
= 0;
1419 uint32 mode
= lp_dir_mask(SNUM(conn
));
1421 DEBUG(5, ("onefs_open_directory: opening directory %s, "
1422 "access_mask = 0x%x, "
1423 "share_access = 0x%x create_options = 0x%x, "
1424 "create_disposition = 0x%x, file_attributes = 0x%x\n",
1425 smb_fname_str_dbg(smb_dname
), (unsigned int)access_mask
,
1426 (unsigned int)share_access
, (unsigned int)create_options
,
1427 (unsigned int)create_disposition
,
1428 (unsigned int)file_attributes
));
1430 if (!(file_attributes
& FILE_FLAG_POSIX_SEMANTICS
) &&
1431 (conn
->fs_capabilities
& FILE_NAMED_STREAMS
) &&
1432 is_ntfs_stream_smb_fname(smb_dname
)) {
1433 DEBUG(2, ("onefs_open_directory: %s is a stream name!\n",
1434 smb_fname_str_dbg(smb_dname
)));
1435 return NT_STATUS_NOT_A_DIRECTORY
;
1438 switch (create_disposition
) {
1440 /* If directory exists open. If directory doesn't
1443 info
= FILE_WAS_OPENED
;
1446 /* If directory exists error. If directory doesn't
1448 create_flags
= O_CREAT
| O_EXCL
;
1449 info
= FILE_WAS_CREATED
;
1452 /* If directory exists open. If directory doesn't
1455 /* Note: in order to return whether the directory was
1456 * opened or created, we first try to open and then try
1459 info
= FILE_WAS_OPENED
;
1461 case FILE_SUPERSEDE
:
1462 case FILE_OVERWRITE
:
1463 case FILE_OVERWRITE_IF
:
1465 DEBUG(5, ("onefs_open_directory: invalid "
1466 "create_disposition 0x%x for directory %s\n",
1467 (unsigned int)create_disposition
,
1468 smb_fname_str_dbg(smb_dname
)));
1469 return NT_STATUS_INVALID_PARAMETER
;
1473 * Check for write access to the share. Done in mkdir_internal() in
1476 if (!CAN_WRITE(conn
) && (create_flags
& O_CREAT
)) {
1477 return NT_STATUS_ACCESS_DENIED
;
1480 /* Get parent dirname */
1481 if (!parent_dirname(talloc_tos(), smb_dname
->base_name
, &parent_dir
,
1483 return NT_STATUS_NO_MEMORY
;
1486 if (file_attributes
& FILE_FLAG_POSIX_SEMANTICS
) {
1488 mode
= (mode_t
)(file_attributes
& ~FILE_FLAG_POSIX_SEMANTICS
);
1489 file_attributes
= 0;
1491 mode
= unix_mode(conn
, aDIR
, smb_dname
, parent_dir
);
1495 * The NONINDEXED and COMPRESSED bits seem to always be cleared on
1496 * directories, no matter if you specify that they should be set.
1499 ~(FILE_ATTRIBUTE_NONINDEXED
| FILE_ATTRIBUTE_COMPRESSED
);
1501 status
= file_new(req
, conn
, &fsp
);
1502 if(!NT_STATUS_IS_OK(status
)) {
1507 * Actual open with retry magic to handle FILE_OPEN_IF which is
1508 * unique because the kernel won't tell us if the file was opened or
1512 fsp
->fh
->fd
= onefs_sys_create_file(conn
,
1514 smb_dname
->base_name
,
1519 create_flags
| O_DIRECTORY
,
1527 if (fsp
->fh
->fd
== -1) {
1528 DEBUG(3, ("Error opening %s. Errno=%d (%s).\n",
1529 smb_fname_str_dbg(smb_dname
), errno
,
1531 SMB_ASSERT(errno
!= EINPROGRESS
);
1533 if (create_disposition
== FILE_OPEN_IF
) {
1534 if (errno
== ENOENT
) {
1535 /* Try again, creating it this time. */
1536 create_flags
= O_CREAT
| O_EXCL
;
1537 info
= FILE_WAS_CREATED
;
1539 } else if (errno
== EEXIST
) {
1540 /* Uggh. Try again again. */
1542 info
= FILE_WAS_OPENED
;
1547 /* Error cases below: */
1548 file_free(req
, fsp
);
1550 if ((errno
== ENOENT
) && (create_disposition
== FILE_OPEN
)) {
1551 DEBUG(5, ("onefs_open_directory: FILE_OPEN requested "
1552 "for directory %s and it doesn't "
1553 "exist.\n", smb_fname_str_dbg(smb_dname
)));
1554 return NT_STATUS_OBJECT_NAME_NOT_FOUND
;
1555 } else if ((errno
== EEXIST
) &&
1556 (create_disposition
== FILE_CREATE
)) {
1557 DEBUG(5, ("onefs_open_directory: FILE_CREATE "
1558 "requested for directory %s and it "
1559 "already exists.\n",
1560 smb_fname_str_dbg(smb_dname
)));
1561 return NT_STATUS_OBJECT_NAME_COLLISION
;
1562 } else if ((errno
== EAGAIN
) || (errno
== EWOULDBLOCK
)) {
1563 /* Catch sharing violations. */
1564 return NT_STATUS_SHARING_VIOLATION
;
1567 return map_nt_error_from_unix(errno
);
1570 if (info
== FILE_WAS_CREATED
) {
1572 /* Pulled from mkdir_internal() */
1573 if (SMB_VFS_LSTAT(conn
, smb_dname
) == -1) {
1574 DEBUG(2, ("Could not stat directory '%s' just "
1576 smb_fname_str_dbg(smb_dname
),
1578 return map_nt_error_from_unix(errno
);
1581 if (!S_ISDIR(smb_dname
->st
.st_ex_mode
)) {
1582 DEBUG(0, ("Directory just '%s' created is not a "
1584 smb_fname_str_dbg(smb_dname
)));
1585 return NT_STATUS_ACCESS_DENIED
;
1590 * Check if high bits should have been set, then (if
1591 * bits are missing): add them. Consider bits
1592 * automagically set by UNIX, i.e. SGID bit from
1595 if (mode
& ~(S_IRWXU
|S_IRWXG
|S_IRWXO
) &&
1596 (mode
& ~smb_dname
->st
.st_ex_mode
)) {
1597 SMB_VFS_CHMOD(conn
, smb_dname
->base_name
,
1598 (smb_dname
->st
.st_ex_mode
|
1599 (mode
& ~smb_dname
->st
.st_ex_mode
)));
1603 /* Change the owner if required. */
1604 if (lp_inherit_owner(SNUM(conn
))) {
1605 change_dir_owner_to_parent(conn
, parent_dir
,
1606 smb_dname
->base_name
,
1610 notify_fname(conn
, NOTIFY_ACTION_ADDED
,
1611 FILE_NOTIFY_CHANGE_DIR_NAME
,
1612 smb_dname
->base_name
);
1615 /* Stat the fd for Samba bookkeeping. */
1616 if(SMB_VFS_FSTAT(fsp
, &smb_dname
->st
) != 0) {
1618 file_free(req
, fsp
);
1619 return map_nt_error_from_unix(errno
);
1622 /* Setup the files_struct for it. */
1623 fsp
->mode
= smb_dname
->st
.st_ex_mode
;
1624 fsp
->file_id
= vfs_file_id_from_sbuf(conn
, &smb_dname
->st
);
1625 fsp
->vuid
= req
? req
->vuid
: UID_FIELD_INVALID
;
1626 fsp
->file_pid
= req
? req
->smbpid
: 0;
1627 fsp
->can_lock
= False
;
1628 fsp
->can_read
= False
;
1629 fsp
->can_write
= False
;
1631 fsp
->share_access
= share_access
;
1632 fsp
->fh
->private_options
= create_options
;
1634 * According to Samba4, SEC_FILE_READ_ATTRIBUTE is always granted,
1636 fsp
->access_mask
= access_mask
| FILE_READ_ATTRIBUTES
;
1637 fsp
->print_file
= False
;
1638 fsp
->modified
= False
;
1639 fsp
->oplock_type
= NO_OPLOCK
;
1640 fsp
->sent_oplock_break
= NO_BREAK_SENT
;
1641 fsp
->is_directory
= True
;
1642 fsp
->posix_open
= posix_open
;
1644 status
= fsp_set_smb_fname(fsp
, smb_dname
);
1645 if (!NT_STATUS_IS_OK(status
)) {
1647 file_free(req
, fsp
);
1651 mtimespec
= smb_dname
->st
.st_ex_mtime
;
1654 * Still set the samba share mode lock for correct delete-on-close
1655 * semantics and to make smbstatus more useful.
1657 lck
= get_share_mode_lock(talloc_tos(), fsp
->file_id
,
1658 conn
->connectpath
, smb_dname
, &mtimespec
);
1661 DEBUG(0, ("onefs_open_directory: Could not get share mode "
1662 "lock for %s\n", smb_fname_str_dbg(smb_dname
)));
1664 file_free(req
, fsp
);
1665 return NT_STATUS_SHARING_VIOLATION
;
1668 if (lck
->delete_on_close
) {
1671 file_free(req
, fsp
);
1672 return NT_STATUS_DELETE_PENDING
;
1675 set_share_mode(lck
, fsp
, conn
->server_info
->utok
.uid
, 0, NO_OPLOCK
);
1678 * For directories the delete on close bit at open time seems
1679 * always to be honored on close... See test 19 in Samba4 BASE-DELETE.
1681 if (create_options
& FILE_DELETE_ON_CLOSE
) {
1682 status
= can_set_delete_on_close(fsp
, 0);
1683 if (!NT_STATUS_IS_OK(status
) &&
1684 !NT_STATUS_EQUAL(status
, NT_STATUS_DIRECTORY_NOT_EMPTY
)) {
1687 file_free(req
, fsp
);
1691 if (NT_STATUS_IS_OK(status
)) {
1692 /* Note that here we set the *inital* delete on close flag,
1693 not the regular one. The magic gets handled in close. */
1694 fsp
->initial_delete_on_close
= True
;
1705 return NT_STATUS_OK
;
1709 * Wrapper around onefs_open_file_ntcreate and onefs_open_directory.
1711 static NTSTATUS
onefs_create_file_unixpath(connection_struct
*conn
,
1712 struct smb_request
*req
,
1713 struct smb_filename
*smb_fname
,
1714 uint32_t access_mask
,
1715 uint32_t share_access
,
1716 uint32_t create_disposition
,
1717 uint32_t create_options
,
1718 uint32_t file_attributes
,
1719 uint32_t oplock_request
,
1720 uint64_t allocation_size
,
1721 struct security_descriptor
*sd
,
1722 struct ea_list
*ea_list
,
1723 files_struct
**result
,
1725 struct onefs_fsp_data
*fsp_data
)
1727 int info
= FILE_WAS_OPENED
;
1728 files_struct
*base_fsp
= NULL
;
1729 files_struct
*fsp
= NULL
;
1732 DEBUG(10,("onefs_create_file_unixpath: access_mask = 0x%x "
1733 "file_attributes = 0x%x, share_access = 0x%x, "
1734 "create_disposition = 0x%x create_options = 0x%x "
1735 "oplock_request = 0x%x ea_list = 0x%p, sd = 0x%p, "
1737 (unsigned int)access_mask
,
1738 (unsigned int)file_attributes
,
1739 (unsigned int)share_access
,
1740 (unsigned int)create_disposition
,
1741 (unsigned int)create_options
,
1742 (unsigned int)oplock_request
,
1743 ea_list
, sd
, smb_fname_str_dbg(smb_fname
)));
1745 if (create_options
& FILE_OPEN_BY_FILE_ID
) {
1746 status
= NT_STATUS_NOT_SUPPORTED
;
1750 if (create_options
& NTCREATEX_OPTIONS_INVALID_PARAM_MASK
) {
1751 status
= NT_STATUS_INVALID_PARAMETER
;
1756 SMB_ASSERT((oplock_request
& ~SAMBA_PRIVATE_OPLOCK_MASK
) ==
1758 oplock_request
|= INTERNAL_OPEN_ONLY
;
1761 if (lp_parm_bool(SNUM(conn
), PARM_ONEFS_TYPE
,
1762 PARM_IGNORE_SACLS
, PARM_IGNORE_SACLS_DEFAULT
)) {
1763 access_mask
&= ~SYSTEM_SECURITY_ACCESS
;
1766 if ((conn
->fs_capabilities
& FILE_NAMED_STREAMS
)
1767 && (access_mask
& DELETE_ACCESS
)
1768 && !is_ntfs_stream_smb_fname(smb_fname
)) {
1770 * We can't open a file with DELETE access if any of the
1771 * streams is open without FILE_SHARE_DELETE
1773 status
= open_streams_for_delete(conn
, smb_fname
->base_name
);
1775 if (!NT_STATUS_IS_OK(status
)) {
1780 if ((conn
->fs_capabilities
& FILE_NAMED_STREAMS
)
1781 && is_ntfs_stream_smb_fname(smb_fname
)) {
1782 uint32 base_create_disposition
;
1783 struct smb_filename
*smb_fname_base
= NULL
;
1785 if (create_options
& FILE_DIRECTORY_FILE
) {
1786 status
= NT_STATUS_NOT_A_DIRECTORY
;
1790 switch (create_disposition
) {
1792 base_create_disposition
= FILE_OPEN
;
1795 base_create_disposition
= FILE_OPEN_IF
;
1799 /* Create an smb_filename with stream_name == NULL. */
1800 status
= create_synthetic_smb_fname(talloc_tos(),
1801 smb_fname
->base_name
,
1804 if (!NT_STATUS_IS_OK(status
)) {
1808 if (SMB_VFS_STAT(conn
, smb_fname_base
) == -1) {
1809 DEBUG(10, ("Unable to stat stream: %s\n",
1810 smb_fname_str_dbg(smb_fname_base
)));
1813 status
= onefs_create_file_unixpath(
1816 smb_fname_base
, /* fname */
1817 SYNCHRONIZE_ACCESS
, /* access_mask */
1820 FILE_SHARE_DELETE
), /* share_access */
1821 base_create_disposition
, /* create_disposition*/
1822 0, /* create_options */
1823 file_attributes
, /* file_attributes */
1824 NO_OPLOCK
, /* oplock_request */
1825 0, /* allocation_size */
1828 &base_fsp
, /* result */
1830 NULL
); /* fsp_data */
1832 TALLOC_FREE(smb_fname_base
);
1834 if (!NT_STATUS_IS_OK(status
)) {
1835 DEBUG(10, ("onefs_create_file_unixpath for base %s "
1836 "failed: %s\n", smb_fname
->base_name
,
1837 nt_errstr(status
)));
1842 * Testing against windows xp/2003/vista shows that oplocks
1843 * can actually be requested and granted on streams (see the
1844 * RAW-OPLOCK-STREAM1 smbtorture test).
1846 if ((oplock_request
& ~SAMBA_PRIVATE_OPLOCK_MASK
) !=
1848 DEBUG(5, ("Oplock(%d) being requested on a stream! "
1849 "Ignoring oplock request: fname=%s\n",
1850 oplock_request
& ~SAMBA_PRIVATE_OPLOCK_MASK
,
1851 smb_fname_str_dbg(smb_fname
)));
1852 /* Request NO_OPLOCK instead. */
1853 oplock_request
&= SAMBA_PRIVATE_OPLOCK_MASK
;
1857 /* Covert generic bits in the security descriptor. */
1859 security_acl_map_generic(sd
->dacl
, &file_generic_mapping
);
1860 security_acl_map_generic(sd
->sacl
, &file_generic_mapping
);
1864 * If it's a request for a directory open, deal with it separately.
1867 if (create_options
& FILE_DIRECTORY_FILE
) {
1869 if (create_options
& FILE_NON_DIRECTORY_FILE
) {
1870 status
= NT_STATUS_INVALID_PARAMETER
;
1874 /* Can't open a temp directory. IFS kit test. */
1875 if (!(file_attributes
& FILE_FLAG_POSIX_SEMANTICS
) &&
1876 (file_attributes
& FILE_ATTRIBUTE_TEMPORARY
)) {
1877 status
= NT_STATUS_INVALID_PARAMETER
;
1882 * We will get a create directory here if the Win32
1883 * app specified a security descriptor in the
1884 * CreateDirectory() call.
1887 status
= onefs_open_directory(
1890 smb_fname
, /* fname */
1891 access_mask
, /* access_mask */
1892 share_access
, /* share_access */
1893 create_disposition
, /* create_disposition*/
1894 create_options
, /* create_options */
1895 file_attributes
, /* file_attributes */
1902 * Ordinary file case.
1905 status
= file_new(req
, conn
, &fsp
);
1906 if(!NT_STATUS_IS_OK(status
)) {
1911 * We're opening the stream element of a base_fsp
1912 * we already opened. Set up the base_fsp pointer.
1915 fsp
->base_fsp
= base_fsp
;
1918 status
= onefs_open_file_ntcreate(
1921 smb_fname
, /* fname */
1922 access_mask
, /* access_mask */
1923 share_access
, /* share_access */
1924 create_disposition
, /* create_disposition*/
1925 create_options
, /* create_options */
1926 file_attributes
, /* file_attributes */
1927 oplock_request
, /* oplock_request */
1931 fsp_data
); /* fsp_data */
1933 if(!NT_STATUS_IS_OK(status
)) {
1934 file_free(req
, fsp
);
1938 if (NT_STATUS_EQUAL(status
, NT_STATUS_FILE_IS_A_DIRECTORY
)) {
1940 /* A stream open never opens a directory */
1943 status
= NT_STATUS_FILE_IS_A_DIRECTORY
;
1948 * Fail the open if it was explicitly a non-directory
1952 if (create_options
& FILE_NON_DIRECTORY_FILE
) {
1953 status
= NT_STATUS_FILE_IS_A_DIRECTORY
;
1957 create_options
|= FILE_DIRECTORY_FILE
;
1959 status
= onefs_open_directory(
1962 smb_fname
, /* fname */
1963 access_mask
, /* access_mask */
1964 share_access
, /* share_access */
1965 create_disposition
, /* create_disposition*/
1966 create_options
, /* create_options */
1967 file_attributes
, /* file_attributes */
1974 if (!NT_STATUS_IS_OK(status
)) {
1978 fsp
->base_fsp
= base_fsp
;
1982 if ((ea_list
!= NULL
) && (info
== FILE_WAS_CREATED
)) {
1983 status
= set_ea(conn
, fsp
, smb_fname
, ea_list
);
1984 if (!NT_STATUS_IS_OK(status
)) {
1989 if (!fsp
->is_directory
&& S_ISDIR(smb_fname
->st
.st_ex_mode
)) {
1990 status
= NT_STATUS_ACCESS_DENIED
;
1994 /* Save the requested allocation size. */
1995 if ((info
== FILE_WAS_CREATED
) || (info
== FILE_WAS_OVERWRITTEN
)) {
1997 && (allocation_size
> smb_fname
->st
.st_ex_size
)) {
1998 fsp
->initial_allocation_size
= smb_roundup(
1999 fsp
->conn
, allocation_size
);
2000 if (fsp
->is_directory
) {
2001 /* Can't set allocation size on a directory. */
2002 status
= NT_STATUS_ACCESS_DENIED
;
2005 if (vfs_allocate_file_space(
2006 fsp
, fsp
->initial_allocation_size
) == -1) {
2007 status
= NT_STATUS_DISK_FULL
;
2011 fsp
->initial_allocation_size
= smb_roundup(
2012 fsp
->conn
, (uint64_t)smb_fname
->st
.st_ex_size
);
2016 DEBUG(10, ("onefs_create_file_unixpath: info=%d\n", info
));
2019 if (pinfo
!= NULL
) {
2022 if ((fsp
->fh
!= NULL
) && (fsp
->fh
->fd
!= -1)) {
2023 SMB_VFS_FSTAT(fsp
, &smb_fname
->st
);
2025 return NT_STATUS_OK
;
2028 DEBUG(10, ("onefs_create_file_unixpath: %s\n", nt_errstr(status
)));
2031 if (base_fsp
&& fsp
->base_fsp
== base_fsp
) {
2033 * The close_file below will close
2038 close_file(req
, fsp
, ERROR_CLOSE
);
2041 if (base_fsp
!= NULL
) {
2042 close_file(req
, base_fsp
, ERROR_CLOSE
);
2048 static void destroy_onefs_fsp_data(void *p_data
)
2050 struct onefs_fsp_data
*fsp_data
= (struct onefs_fsp_data
*)p_data
;
2052 destroy_onefs_callback_record(fsp_data
->oplock_callback_id
);
2056 * SMB_VFS_CREATE_FILE interface to onefs.
2058 NTSTATUS
onefs_create_file(vfs_handle_struct
*handle
,
2059 struct smb_request
*req
,
2060 uint16_t root_dir_fid
,
2061 struct smb_filename
*smb_fname
,
2062 uint32_t access_mask
,
2063 uint32_t share_access
,
2064 uint32_t create_disposition
,
2065 uint32_t create_options
,
2066 uint32_t file_attributes
,
2067 uint32_t oplock_request
,
2068 uint64_t allocation_size
,
2069 struct security_descriptor
*sd
,
2070 struct ea_list
*ea_list
,
2071 files_struct
**result
,
2074 connection_struct
*conn
= handle
->conn
;
2075 struct onefs_fsp_data fsp_data
= {};
2076 int info
= FILE_WAS_OPENED
;
2077 files_struct
*fsp
= NULL
;
2080 DEBUG(10,("onefs_create_file: access_mask = 0x%x "
2081 "file_attributes = 0x%x, share_access = 0x%x, "
2082 "create_disposition = 0x%x create_options = 0x%x "
2083 "oplock_request = 0x%x "
2084 "root_dir_fid = 0x%x, ea_list = 0x%p, sd = 0x%p, "
2086 (unsigned int)access_mask
,
2087 (unsigned int)file_attributes
,
2088 (unsigned int)share_access
,
2089 (unsigned int)create_disposition
,
2090 (unsigned int)create_options
,
2091 (unsigned int)oplock_request
,
2092 (unsigned int)root_dir_fid
,
2093 ea_list
, sd
, smb_fname_str_dbg(smb_fname
)));
2095 /* Get the file name if root_dir_fid was specified. */
2096 if (root_dir_fid
!= 0) {
2097 struct smb_filename
*smb_fname_out
= NULL
;
2098 status
= get_relative_fid_filename(conn
, req
, root_dir_fid
,
2099 smb_fname
, &smb_fname_out
);
2100 if (!NT_STATUS_IS_OK(status
)) {
2103 smb_fname
= smb_fname_out
;
2106 /* All file access must go through check_name() */
2107 status
= check_name(conn
, smb_fname
->base_name
);
2108 if (!NT_STATUS_IS_OK(status
)) {
2112 status
= onefs_create_file_unixpath(
2115 smb_fname
, /* fname */
2116 access_mask
, /* access_mask */
2117 share_access
, /* share_access */
2118 create_disposition
, /* create_disposition*/
2119 create_options
, /* create_options */
2120 file_attributes
, /* file_attributes */
2121 oplock_request
, /* oplock_request */
2122 allocation_size
, /* allocation_size */
2124 ea_list
, /* ea_list */
2127 &fsp_data
); /* psbuf */
2129 if (!NT_STATUS_IS_OK(status
)) {
2133 DEBUG(10, ("onefs_create_file: info=%d\n", info
));
2136 * Setup private onefs_fsp_data. Currently the private data struct is
2137 * only used to store the oplock_callback_id so that when the file is
2138 * closed, the onefs_callback_record can be properly cleaned up in the
2139 * oplock_onefs sub-system.
2142 struct onefs_fsp_data
*fsp_data_tmp
= NULL
;
2143 fsp_data_tmp
= (struct onefs_fsp_data
*)
2144 VFS_ADD_FSP_EXTENSION(handle
, fsp
, struct onefs_fsp_data
,
2145 &destroy_onefs_fsp_data
);
2147 if (fsp_data_tmp
== NULL
) {
2148 status
= NT_STATUS_NO_MEMORY
;
2152 *fsp_data_tmp
= fsp_data
;
2156 if (pinfo
!= NULL
) {
2159 return NT_STATUS_OK
;
2162 DEBUG(10, ("onefs_create_file: %s\n", nt_errstr(status
)));
2165 close_file(req
, fsp
, ERROR_CLOSE
);