2 Unix SMB/CIFS implementation.
3 Wrap gpfs calls in vfs functions.
5 Copyright (C) Christian Ambach <cambach1@de.ibm.com> 2006
7 Major code contributions by Chetan Shringarpure <chetan.sh@in.ibm.com>
8 and Gomati Mohanan <gomati.mohanan@in.ibm.com>
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>.
25 #include "smbd/smbd.h"
26 #include "librpc/gen_ndr/ndr_xattr.h"
27 #include "include/smbprofile.h"
30 #define DBGC_CLASS DBGC_VFS
33 #include "nfs4_acls.h"
35 #include "system/filesys.h"
37 struct gpfs_config_data
{
44 static int vfs_gpfs_kernel_flock(vfs_handle_struct
*handle
, files_struct
*fsp
,
45 uint32 share_mode
, uint32 access_mask
)
48 struct gpfs_config_data
*config
;
50 SMB_VFS_HANDLE_GET_DATA(handle
, config
,
51 struct gpfs_config_data
,
54 START_PROFILE(syscall_kernel_flock
);
56 kernel_flock(fsp
->fh
->fd
, share_mode
, access_mask
);
58 if (config
->sharemodes
59 && !set_gpfs_sharemode(fsp
, access_mask
, fsp
->share_access
)) {
63 END_PROFILE(syscall_kernel_flock
);
68 static int vfs_gpfs_close(vfs_handle_struct
*handle
, files_struct
*fsp
)
71 struct gpfs_config_data
*config
;
73 SMB_VFS_HANDLE_GET_DATA(handle
, config
,
74 struct gpfs_config_data
,
77 if (config
->sharemodes
&& (fsp
->fh
!= NULL
) && (fsp
->fh
->fd
!= -1)) {
78 set_gpfs_sharemode(fsp
, 0, 0);
81 return SMB_VFS_NEXT_CLOSE(handle
, fsp
);
84 static int vfs_gpfs_setlease(vfs_handle_struct
*handle
, files_struct
*fsp
,
87 struct gpfs_config_data
*config
;
90 SMB_VFS_HANDLE_GET_DATA(handle
, config
,
91 struct gpfs_config_data
,
94 START_PROFILE(syscall_linux_setlease
);
96 if (linux_set_lease_sighandler(fsp
->fh
->fd
) == -1)
101 * Ensure the lease owner is root to allow
102 * correct delivery of lease-break signals.
105 ret
= set_gpfs_lease(fsp
->fh
->fd
,leasetype
);
110 /* This must have come from GPFS not being available */
111 /* or some other error, hence call the default */
112 ret
= linux_setlease(fsp
->fh
->fd
, leasetype
);
115 END_PROFILE(syscall_linux_setlease
);
120 static int vfs_gpfs_get_real_filename(struct vfs_handle_struct
*handle
,
128 char real_pathname
[PATH_MAX
+1];
132 mangled
= mangle_is_mangled(name
, handle
->conn
->params
);
134 return SMB_VFS_NEXT_GET_REAL_FILENAME(handle
, path
, name
,
135 mem_ctx
, found_name
);
138 full_path
= talloc_asprintf(talloc_tos(), "%s/%s", path
, name
);
139 if (full_path
== NULL
) {
144 buflen
= sizeof(real_pathname
) - 1;
146 result
= smbd_gpfs_get_realfilename_path(full_path
, real_pathname
,
149 TALLOC_FREE(full_path
);
151 if ((result
== -1) && (errno
== ENOSYS
)) {
152 return SMB_VFS_NEXT_GET_REAL_FILENAME(
153 handle
, path
, name
, mem_ctx
, found_name
);
157 DEBUG(10, ("smbd_gpfs_get_realfilename_path returned %s\n",
163 * GPFS does not necessarily null-terminate the returned path
164 * but instead returns the buffer length in buflen.
167 if (buflen
< sizeof(real_pathname
)) {
168 real_pathname
[buflen
] = '\0';
170 real_pathname
[sizeof(real_pathname
)-1] = '\0';
173 DEBUG(10, ("smbd_gpfs_get_realfilename_path: %s/%s -> %s\n",
174 path
, name
, real_pathname
));
176 name
= strrchr_m(real_pathname
, '/');
182 *found_name
= talloc_strdup(mem_ctx
, name
+1);
183 if (*found_name
== NULL
) {
191 static void gpfs_dumpacl(int level
, struct gpfs_acl
*gacl
)
196 DEBUG(0, ("gpfs acl is NULL\n"));
200 DEBUG(level
, ("gpfs acl: nace: %d, type:%d, version:%d, level:%d, len:%d\n",
201 gacl
->acl_nace
, gacl
->acl_type
, gacl
->acl_version
, gacl
->acl_level
, gacl
->acl_len
));
202 for(i
=0; i
<gacl
->acl_nace
; i
++)
204 struct gpfs_ace_v4
*gace
= gacl
->ace_v4
+ i
;
205 DEBUG(level
, ("\tace[%d]: type:%d, flags:0x%x, mask:0x%x, iflags:0x%x, who:%u\n",
206 i
, gace
->aceType
, gace
->aceFlags
, gace
->aceMask
,
207 gace
->aceIFlags
, gace
->aceWho
));
211 static struct gpfs_acl
*gpfs_getacl_alloc(const char *fname
, gpfs_aclType_t type
)
213 struct gpfs_acl
*acl
;
216 TALLOC_CTX
*mem_ctx
= talloc_tos();
218 acl
= (struct gpfs_acl
*)TALLOC_SIZE(mem_ctx
, len
);
226 acl
->acl_version
= 0;
227 acl
->acl_type
= type
;
229 ret
= smbd_gpfs_getacl((char *)fname
, GPFS_GETACL_STRUCT
| GPFS_ACL_SAMBA
, acl
);
230 if ((ret
!= 0) && (errno
== ENOSPC
)) {
231 struct gpfs_acl
*new_acl
= (struct gpfs_acl
*)TALLOC_SIZE(
232 mem_ctx
, acl
->acl_len
+ sizeof(struct gpfs_acl
));
233 if (new_acl
== NULL
) {
238 new_acl
->acl_len
= acl
->acl_len
;
239 new_acl
->acl_level
= acl
->acl_level
;
240 new_acl
->acl_version
= acl
->acl_version
;
241 new_acl
->acl_type
= acl
->acl_type
;
244 ret
= smbd_gpfs_getacl((char *)fname
, GPFS_GETACL_STRUCT
| GPFS_ACL_SAMBA
, acl
);
248 DEBUG(8, ("smbd_gpfs_getacl failed with %s\n",strerror(errno
)));
255 /* Tries to get nfs4 acls and returns SMB ACL allocated.
256 * On failure returns 1 if it got non-NFSv4 ACL to prompt
257 * retry with POSIX ACL checks.
258 * On failure returns -1 if there is system (GPFS) error, check errno.
259 * Returns 0 on success
261 static int gpfs_get_nfs4_acl(const char *fname
, SMB4ACL_T
**ppacl
)
264 struct gpfs_acl
*gacl
= NULL
;
265 DEBUG(10, ("gpfs_get_nfs4_acl invoked for %s\n", fname
));
267 /* First get the real acl length */
268 gacl
= gpfs_getacl_alloc(fname
, 0);
270 DEBUG(9, ("gpfs_getacl failed for %s with %s\n",
271 fname
, strerror(errno
)));
275 if (gacl
->acl_type
!= GPFS_ACL_TYPE_NFS4
) {
276 DEBUG(10, ("Got non-nfsv4 acl\n"));
277 /* Retry with POSIX ACLs check */
281 *ppacl
= smb_create_smb4acl();
283 DEBUG(10, ("len: %d, level: %d, version: %d, nace: %d\n",
284 gacl
->acl_len
, gacl
->acl_level
, gacl
->acl_version
,
287 for (i
=0; i
<gacl
->acl_nace
; i
++) {
288 struct gpfs_ace_v4
*gace
= &gacl
->ace_v4
[i
];
289 SMB_ACE4PROP_T smbace
;
290 DEBUG(10, ("type: %d, iflags: %x, flags: %x, mask: %x, "
291 "who: %d\n", gace
->aceType
, gace
->aceIFlags
,
292 gace
->aceFlags
, gace
->aceMask
, gace
->aceWho
));
295 if (gace
->aceIFlags
& ACE4_IFLAG_SPECIAL_ID
) {
296 smbace
.flags
|= SMB_ACE4_ID_SPECIAL
;
297 switch (gace
->aceWho
) {
298 case ACE4_SPECIAL_OWNER
:
299 smbace
.who
.special_id
= SMB_ACE4_WHO_OWNER
;
301 case ACE4_SPECIAL_GROUP
:
302 smbace
.who
.special_id
= SMB_ACE4_WHO_GROUP
;
304 case ACE4_SPECIAL_EVERYONE
:
305 smbace
.who
.special_id
= SMB_ACE4_WHO_EVERYONE
;
308 DEBUG(8, ("invalid special gpfs id %d "
309 "ignored\n", gace
->aceWho
));
310 continue; /* don't add it */
313 if (gace
->aceFlags
& ACE4_FLAG_GROUP_ID
)
314 smbace
.who
.gid
= gace
->aceWho
;
316 smbace
.who
.uid
= gace
->aceWho
;
319 /* remove redundent deny entries */
320 if (i
> 0 && gace
->aceType
== SMB_ACE4_ACCESS_DENIED_ACE_TYPE
) {
321 struct gpfs_ace_v4
*prev
= &gacl
->ace_v4
[i
-1];
322 if (prev
->aceType
== SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE
&&
323 prev
->aceFlags
== gace
->aceFlags
&&
324 prev
->aceIFlags
== gace
->aceIFlags
&&
325 (gace
->aceMask
& prev
->aceMask
) == 0 &&
326 gace
->aceWho
== prev
->aceWho
) {
327 /* its redundent - skip it */
332 smbace
.aceType
= gace
->aceType
;
333 smbace
.aceFlags
= gace
->aceFlags
;
334 smbace
.aceMask
= gace
->aceMask
;
335 smb_add_ace4(*ppacl
, &smbace
);
341 static NTSTATUS
gpfsacl_fget_nt_acl(vfs_handle_struct
*handle
,
342 files_struct
*fsp
, uint32 security_info
,
343 struct security_descriptor
**ppdesc
)
345 SMB4ACL_T
*pacl
= NULL
;
349 result
= gpfs_get_nfs4_acl(fsp
->fsp_name
->base_name
, &pacl
);
352 return smb_fget_nt_acl_nfs4(fsp
, security_info
, ppdesc
, pacl
);
355 DEBUG(10, ("retrying with posix acl...\n"));
356 return posix_fget_nt_acl(fsp
, security_info
, ppdesc
);
359 /* GPFS ACL was not read, something wrong happened, error code is set in errno */
360 return map_nt_error_from_unix(errno
);
363 static NTSTATUS
gpfsacl_get_nt_acl(vfs_handle_struct
*handle
,
365 uint32 security_info
, struct security_descriptor
**ppdesc
)
367 SMB4ACL_T
*pacl
= NULL
;
371 result
= gpfs_get_nfs4_acl(name
, &pacl
);
374 return smb_get_nt_acl_nfs4(handle
->conn
, name
, security_info
, ppdesc
, pacl
);
377 DEBUG(10, ("retrying with posix acl...\n"));
378 return posix_get_nt_acl(handle
->conn
, name
, security_info
, ppdesc
);
381 /* GPFS ACL was not read, something wrong happened, error code is set in errno */
382 return map_nt_error_from_unix(errno
);
385 static bool gpfsacl_process_smbacl(files_struct
*fsp
, SMB4ACL_T
*smbacl
)
388 gpfs_aclLen_t gacl_len
;
390 struct gpfs_acl
*gacl
;
391 TALLOC_CTX
*mem_ctx
= talloc_tos();
393 gacl_len
= sizeof(struct gpfs_acl
) +
394 (smb_get_naces(smbacl
)-1)*sizeof(gpfs_ace_v4_t
);
396 gacl
= (struct gpfs_acl
*)TALLOC_SIZE(mem_ctx
, gacl_len
);
398 DEBUG(0, ("talloc failed\n"));
403 gacl
->acl_len
= gacl_len
;
405 gacl
->acl_version
= GPFS_ACL_VERSION_NFS4
;
406 gacl
->acl_type
= GPFS_ACL_TYPE_NFS4
;
407 gacl
->acl_nace
= 0; /* change later... */
409 for (smbace
=smb_first_ace4(smbacl
); smbace
!=NULL
; smbace
= smb_next_ace4(smbace
)) {
410 struct gpfs_ace_v4
*gace
= &gacl
->ace_v4
[gacl
->acl_nace
];
411 SMB_ACE4PROP_T
*aceprop
= smb_get_ace4(smbace
);
413 gace
->aceType
= aceprop
->aceType
;
414 gace
->aceFlags
= aceprop
->aceFlags
;
415 gace
->aceMask
= aceprop
->aceMask
;
418 * GPFS can't distinguish between WRITE and APPEND on
419 * files, so one being set without the other is an
420 * error. Sorry for the many ()'s :-)
423 if (!fsp
->is_directory
425 ((((gace
->aceMask
& ACE4_MASK_WRITE
) == 0)
426 && ((gace
->aceMask
& ACE4_MASK_APPEND
) != 0))
428 (((gace
->aceMask
& ACE4_MASK_WRITE
) != 0)
429 && ((gace
->aceMask
& ACE4_MASK_APPEND
) == 0)))
431 lp_parm_bool(fsp
->conn
->params
->service
, "gpfs",
432 "merge_writeappend", True
)) {
433 DEBUG(2, ("vfs_gpfs.c: file [%s]: ACE contains "
434 "WRITE^APPEND, setting WRITE|APPEND\n",
436 gace
->aceMask
|= ACE4_MASK_WRITE
|ACE4_MASK_APPEND
;
439 gace
->aceIFlags
= (aceprop
->flags
&SMB_ACE4_ID_SPECIAL
) ? ACE4_IFLAG_SPECIAL_ID
: 0;
441 if (aceprop
->flags
&SMB_ACE4_ID_SPECIAL
)
443 switch(aceprop
->who
.special_id
)
445 case SMB_ACE4_WHO_EVERYONE
:
446 gace
->aceWho
= ACE4_SPECIAL_EVERYONE
;
448 case SMB_ACE4_WHO_OWNER
:
449 gace
->aceWho
= ACE4_SPECIAL_OWNER
;
451 case SMB_ACE4_WHO_GROUP
:
452 gace
->aceWho
= ACE4_SPECIAL_GROUP
;
455 DEBUG(8, ("unsupported special_id %d\n", aceprop
->who
.special_id
));
456 continue; /* don't add it !!! */
459 /* just only for the type safety... */
460 if (aceprop
->aceFlags
&SMB_ACE4_IDENTIFIER_GROUP
)
461 gace
->aceWho
= aceprop
->who
.gid
;
463 gace
->aceWho
= aceprop
->who
.uid
;
469 ret
= smbd_gpfs_putacl(fsp
->fsp_name
->base_name
,
470 GPFS_PUTACL_STRUCT
| GPFS_ACL_SAMBA
, gacl
);
472 DEBUG(8, ("gpfs_putacl failed with %s\n", strerror(errno
)));
473 gpfs_dumpacl(8, gacl
);
477 DEBUG(10, ("gpfs_putacl succeeded\n"));
481 static NTSTATUS
gpfsacl_set_nt_acl_internal(files_struct
*fsp
, uint32 security_info_sent
, const struct security_descriptor
*psd
)
483 struct gpfs_acl
*acl
;
484 NTSTATUS result
= NT_STATUS_ACCESS_DENIED
;
486 acl
= gpfs_getacl_alloc(fsp
->fsp_name
->base_name
, 0);
490 if (acl
->acl_version
&GPFS_ACL_VERSION_NFS4
)
492 if (lp_parm_bool(fsp
->conn
->params
->service
, "gpfs",
493 "refuse_dacl_protected", false)
494 && (psd
->type
&SEC_DESC_DACL_PROTECTED
)) {
495 DEBUG(2, ("Rejecting unsupported ACL with DACL_PROTECTED bit set\n"));
496 return NT_STATUS_NOT_SUPPORTED
;
499 result
= smb_set_nt_acl_nfs4(
500 fsp
, security_info_sent
, psd
,
501 gpfsacl_process_smbacl
);
502 } else { /* assume POSIX ACL - by default... */
503 result
= set_nt_acl(fsp
, security_info_sent
, psd
);
509 static NTSTATUS
gpfsacl_fset_nt_acl(vfs_handle_struct
*handle
, files_struct
*fsp
, uint32 security_info_sent
, const struct security_descriptor
*psd
)
511 return gpfsacl_set_nt_acl_internal(fsp
, security_info_sent
, psd
);
514 static SMB_ACL_T
gpfs2smb_acl(const struct gpfs_acl
*pacl
)
519 result
= sys_acl_init(pacl
->acl_nace
);
520 if (result
== NULL
) {
525 result
->count
= pacl
->acl_nace
;
527 for (i
=0; i
<pacl
->acl_nace
; i
++) {
528 struct smb_acl_entry
*ace
= &result
->acl
[i
];
529 const struct gpfs_ace_v1
*g_ace
= &pacl
->ace_v1
[i
];
531 DEBUG(10, ("Converting type %d id %lu perm %x\n",
532 (int)g_ace
->ace_type
, (unsigned long)g_ace
->ace_who
,
533 (int)g_ace
->ace_perm
));
535 switch (g_ace
->ace_type
) {
537 ace
->a_type
= SMB_ACL_USER
;
538 ace
->uid
= (uid_t
)g_ace
->ace_who
;
540 case GPFS_ACL_USER_OBJ
:
541 ace
->a_type
= SMB_ACL_USER_OBJ
;
544 ace
->a_type
= SMB_ACL_GROUP
;
545 ace
->gid
= (gid_t
)g_ace
->ace_who
;
547 case GPFS_ACL_GROUP_OBJ
:
548 ace
->a_type
= SMB_ACL_GROUP_OBJ
;
551 ace
->a_type
= SMB_ACL_OTHER
;
554 ace
->a_type
= SMB_ACL_MASK
;
557 DEBUG(10, ("Got invalid ace_type: %d\n",
565 ace
->a_perm
|= (g_ace
->ace_perm
& ACL_PERM_READ
) ?
567 ace
->a_perm
|= (g_ace
->ace_perm
& ACL_PERM_WRITE
) ?
569 ace
->a_perm
|= (g_ace
->ace_perm
& ACL_PERM_EXECUTE
) ?
572 DEBUGADD(10, ("Converted to %d perm %x\n",
573 ace
->a_type
, ace
->a_perm
));
579 static SMB_ACL_T
gpfsacl_get_posix_acl(const char *path
, gpfs_aclType_t type
)
581 struct gpfs_acl
*pacl
;
582 SMB_ACL_T result
= NULL
;
584 pacl
= gpfs_getacl_alloc(path
, type
);
587 DEBUG(10, ("gpfs_getacl failed for %s with %s\n",
588 path
, strerror(errno
)));
595 if (pacl
->acl_version
!= GPFS_ACL_VERSION_POSIX
) {
596 DEBUG(10, ("Got acl version %d, expected %d\n",
597 pacl
->acl_version
, GPFS_ACL_VERSION_POSIX
));
602 DEBUG(10, ("len: %d, level: %d, version: %d, nace: %d\n",
603 pacl
->acl_len
, pacl
->acl_level
, pacl
->acl_version
,
606 result
= gpfs2smb_acl(pacl
);
607 if (result
!= NULL
) {
619 static SMB_ACL_T
gpfsacl_sys_acl_get_file(vfs_handle_struct
*handle
,
623 gpfs_aclType_t gpfs_type
;
626 case SMB_ACL_TYPE_ACCESS
:
627 gpfs_type
= GPFS_ACL_TYPE_ACCESS
;
629 case SMB_ACL_TYPE_DEFAULT
:
630 gpfs_type
= GPFS_ACL_TYPE_DEFAULT
;
633 DEBUG(0, ("Got invalid type: %d\n", type
));
634 smb_panic("exiting");
637 return gpfsacl_get_posix_acl(path_p
, gpfs_type
);
640 static SMB_ACL_T
gpfsacl_sys_acl_get_fd(vfs_handle_struct
*handle
,
643 return gpfsacl_get_posix_acl(fsp
->fsp_name
->base_name
,
644 GPFS_ACL_TYPE_ACCESS
);
647 static struct gpfs_acl
*smb2gpfs_acl(const SMB_ACL_T pacl
,
651 struct gpfs_acl
*result
;
655 gpfs_ace_v1_t ace_v1
[1]; /* when GPFS_ACL_VERSION_POSIX */
656 gpfs_ace_v4_t ace_v4
[1]; /* when GPFS_ACL_VERSION_NFS4 */
659 DEBUG(10, ("smb2gpfs_acl: Got ACL with %d entries\n", pacl
->count
));
661 len
= sizeof(struct gpfs_acl
) - sizeof(union gpfs_ace_union
) +
662 (pacl
->count
)*sizeof(gpfs_ace_v1_t
);
664 result
= (struct gpfs_acl
*)SMB_MALLOC(len
);
665 if (result
== NULL
) {
670 result
->acl_len
= len
;
671 result
->acl_level
= 0;
672 result
->acl_version
= GPFS_ACL_VERSION_POSIX
;
673 result
->acl_type
= (type
== SMB_ACL_TYPE_DEFAULT
) ?
674 GPFS_ACL_TYPE_DEFAULT
: GPFS_ACL_TYPE_ACCESS
;
675 result
->acl_nace
= pacl
->count
;
677 for (i
=0; i
<pacl
->count
; i
++) {
678 const struct smb_acl_entry
*ace
= &pacl
->acl
[i
];
679 struct gpfs_ace_v1
*g_ace
= &result
->ace_v1
[i
];
681 DEBUG(10, ("Converting type %d perm %x\n",
682 (int)ace
->a_type
, (int)ace
->a_perm
));
686 switch(ace
->a_type
) {
688 g_ace
->ace_type
= GPFS_ACL_USER
;
689 g_ace
->ace_who
= (gpfs_uid_t
)ace
->uid
;
691 case SMB_ACL_USER_OBJ
:
692 g_ace
->ace_type
= GPFS_ACL_USER_OBJ
;
693 g_ace
->ace_perm
|= ACL_PERM_CONTROL
;
697 g_ace
->ace_type
= GPFS_ACL_GROUP
;
698 g_ace
->ace_who
= (gpfs_uid_t
)ace
->gid
;
700 case SMB_ACL_GROUP_OBJ
:
701 g_ace
->ace_type
= GPFS_ACL_GROUP_OBJ
;
705 g_ace
->ace_type
= GPFS_ACL_MASK
;
706 g_ace
->ace_perm
= 0x8f;
710 g_ace
->ace_type
= GPFS_ACL_OTHER
;
714 DEBUG(10, ("Got invalid ace_type: %d\n", ace
->a_type
));
720 g_ace
->ace_perm
|= (ace
->a_perm
& SMB_ACL_READ
) ?
722 g_ace
->ace_perm
|= (ace
->a_perm
& SMB_ACL_WRITE
) ?
724 g_ace
->ace_perm
|= (ace
->a_perm
& SMB_ACL_EXECUTE
) ?
725 ACL_PERM_EXECUTE
: 0;
727 DEBUGADD(10, ("Converted to %d id %d perm %x\n",
728 g_ace
->ace_type
, g_ace
->ace_who
, g_ace
->ace_perm
));
734 static int gpfsacl_sys_acl_set_file(vfs_handle_struct
*handle
,
739 struct gpfs_acl
*gpfs_acl
;
742 gpfs_acl
= smb2gpfs_acl(theacl
, type
);
743 if (gpfs_acl
== NULL
) {
747 result
= smbd_gpfs_putacl((char *)name
, GPFS_PUTACL_STRUCT
| GPFS_ACL_SAMBA
, gpfs_acl
);
753 static int gpfsacl_sys_acl_set_fd(vfs_handle_struct
*handle
,
757 return gpfsacl_sys_acl_set_file(handle
, fsp
->fsp_name
->base_name
,
758 SMB_ACL_TYPE_ACCESS
, theacl
);
761 static int gpfsacl_sys_acl_delete_def_file(vfs_handle_struct
*handle
,
769 * Assumed: mode bits are shiftable and standard
770 * Output: the new aceMask field for an smb nfs4 ace
772 static uint32
gpfsacl_mask_filter(uint32 aceType
, uint32 aceMask
, uint32 rwx
)
774 const uint32 posix_nfs4map
[3] = {
775 SMB_ACE4_EXECUTE
, /* execute */
776 SMB_ACE4_WRITE_DATA
| SMB_ACE4_APPEND_DATA
, /* write; GPFS specific */
777 SMB_ACE4_READ_DATA
/* read */
780 uint32_t posix_mask
= 0x01;
785 nfs4_bits
= posix_nfs4map
[i
];
786 posix_bit
= rwx
& posix_mask
;
788 if (aceType
==SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE
) {
790 aceMask
|= nfs4_bits
;
792 aceMask
&= ~nfs4_bits
;
794 /* add deny bits when suitable */
796 aceMask
|= nfs4_bits
;
798 aceMask
&= ~nfs4_bits
;
799 } /* other ace types are unexpected */
807 static int gpfsacl_emu_chmod(const char *path
, mode_t mode
)
809 SMB4ACL_T
*pacl
= NULL
;
811 bool haveAllowEntry
[SMB_ACE4_WHO_EVERYONE
+ 1] = {False
, False
, False
, False
};
813 files_struct fake_fsp
; /* TODO: rationalize parametrization */
817 DEBUG(10, ("gpfsacl_emu_chmod invoked for %s mode %o\n", path
, mode
));
819 result
= gpfs_get_nfs4_acl(path
, &pacl
);
823 if (mode
& ~(S_IRWXU
| S_IRWXG
| S_IRWXO
)) {
824 DEBUG(2, ("WARNING: cutting extra mode bits %o on %s\n", mode
, path
));
827 for (smbace
=smb_first_ace4(pacl
); smbace
!=NULL
; smbace
= smb_next_ace4(smbace
)) {
828 SMB_ACE4PROP_T
*ace
= smb_get_ace4(smbace
);
829 uint32_t specid
= ace
->who
.special_id
;
831 if (ace
->flags
&SMB_ACE4_ID_SPECIAL
&&
832 ace
->aceType
<=SMB_ACE4_ACCESS_DENIED_ACE_TYPE
&&
833 specid
<= SMB_ACE4_WHO_EVERYONE
) {
837 if (ace
->aceType
==SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE
)
838 haveAllowEntry
[specid
] = True
;
840 /* mode >> 6 for @owner, mode >> 3 for @group,
841 * mode >> 0 for @everyone */
842 newMask
= gpfsacl_mask_filter(ace
->aceType
, ace
->aceMask
,
843 mode
>> ((SMB_ACE4_WHO_EVERYONE
- specid
) * 3));
844 if (ace
->aceMask
!=newMask
) {
845 DEBUG(10, ("ace changed for %s (%o -> %o) id=%d\n",
846 path
, ace
->aceMask
, newMask
, specid
));
848 ace
->aceMask
= newMask
;
852 /* make sure we have at least ALLOW entries
853 * for all the 3 special ids (@EVERYONE, @OWNER, @GROUP)
856 for(i
= SMB_ACE4_WHO_OWNER
; i
<=SMB_ACE4_WHO_EVERYONE
; i
++) {
859 if (haveAllowEntry
[i
]==True
)
863 ace
.aceType
= SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE
;
864 ace
.flags
|= SMB_ACE4_ID_SPECIAL
;
865 ace
.who
.special_id
= i
;
867 if (i
==SMB_ACE4_WHO_GROUP
) /* not sure it's necessary... */
868 ace
.aceFlags
|= SMB_ACE4_IDENTIFIER_GROUP
;
870 ace
.aceMask
= gpfsacl_mask_filter(ace
.aceType
, ace
.aceMask
,
871 mode
>> ((SMB_ACE4_WHO_EVERYONE
- i
) * 3));
873 /* don't add unnecessary aces */
877 /* we add it to the END - as windows expects allow aces */
878 smb_add_ace4(pacl
, &ace
);
879 DEBUG(10, ("Added ALLOW ace for %s, mode=%o, id=%d, aceMask=%x\n",
880 path
, mode
, i
, ace
.aceMask
));
883 /* don't add complementary DENY ACEs here */
884 ZERO_STRUCT(fake_fsp
);
885 status
= create_synthetic_smb_fname(talloc_tos(), path
, NULL
, NULL
,
887 if (!NT_STATUS_IS_OK(status
)) {
888 errno
= map_errno_from_nt_status(status
);
892 if (gpfsacl_process_smbacl(&fake_fsp
, pacl
) == False
) {
893 TALLOC_FREE(fake_fsp
.fsp_name
);
897 TALLOC_FREE(fake_fsp
.fsp_name
);
898 return 0; /* ok for [f]chmod */
901 static int vfs_gpfs_chmod(vfs_handle_struct
*handle
, const char *path
, mode_t mode
)
903 struct smb_filename
*smb_fname_cpath
;
907 status
= create_synthetic_smb_fname(
908 talloc_tos(), path
, NULL
, NULL
, &smb_fname_cpath
);
910 if (SMB_VFS_NEXT_STAT(handle
, smb_fname_cpath
) != 0) {
914 /* avoid chmod() if possible, to preserve acls */
915 if ((smb_fname_cpath
->st
.st_ex_mode
& ~S_IFMT
) == mode
) {
919 rc
= gpfsacl_emu_chmod(path
, mode
);
921 return SMB_VFS_NEXT_CHMOD(handle
, path
, mode
);
925 static int vfs_gpfs_fchmod(vfs_handle_struct
*handle
, files_struct
*fsp
, mode_t mode
)
930 if (SMB_VFS_NEXT_FSTAT(handle
, fsp
, &st
) != 0) {
934 /* avoid chmod() if possible, to preserve acls */
935 if ((st
.st_ex_mode
& ~S_IFMT
) == mode
) {
939 rc
= gpfsacl_emu_chmod(fsp
->fsp_name
->base_name
, mode
);
941 return SMB_VFS_NEXT_FCHMOD(handle
, fsp
, mode
);
945 static int gpfs_set_xattr(struct vfs_handle_struct
*handle
, const char *path
,
946 const char *name
, const void *value
, size_t size
, int flags
){
947 struct xattr_DOSATTRIB dosattrib
;
948 enum ndr_err_code ndr_err
;
950 const char *attrstr
= value
;
951 unsigned int dosmode
=0;
952 struct gpfs_winattr attrs
;
955 DEBUG(10, ("gpfs_set_xattr: %s \n",path
));
957 /* Only handle DOS Attributes */
958 if (strcmp(name
,SAMBA_XATTR_DOS_ATTRIB
) != 0){
959 DEBUG(5, ("gpfs_set_xattr:name is %s\n",name
));
960 return SMB_VFS_NEXT_SETXATTR(handle
,path
,name
,value
,size
,flags
);
963 blob
.data
= (uint8_t *)attrstr
;
966 ndr_err
= ndr_pull_struct_blob(&blob
, talloc_tos(), &dosattrib
,
967 (ndr_pull_flags_fn_t
)ndr_pull_xattr_DOSATTRIB
);
969 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err
)) {
970 DEBUG(1, ("gpfs_set_xattr: bad ndr decode "
971 "from EA on file %s: Error = %s\n",
972 path
, ndr_errstr(ndr_err
)));
976 if (dosattrib
.version
!= 3) {
977 DEBUG(1, ("gpfs_set_xattr: expected dosattrib version 3, got "
978 "%d\n", (int)dosattrib
.version
));
981 if (!(dosattrib
.info
.info3
.valid_flags
& XATTR_DOSINFO_ATTRIB
)) {
982 DEBUG(10, ("gpfs_set_xattr: XATTR_DOSINFO_ATTRIB not "
983 "valid, ignoring\n"));
987 dosmode
= dosattrib
.info
.info3
.attrib
;
990 /*Just map RD_ONLY, ARCHIVE, SYSTEM HIDDEN and SPARSE. Ignore the others*/
991 if (dosmode
& FILE_ATTRIBUTE_ARCHIVE
){
992 attrs
.winAttrs
|= GPFS_WINATTR_ARCHIVE
;
994 if (dosmode
& FILE_ATTRIBUTE_HIDDEN
){
995 attrs
.winAttrs
|= GPFS_WINATTR_HIDDEN
;
997 if (dosmode
& FILE_ATTRIBUTE_SYSTEM
){
998 attrs
.winAttrs
|= GPFS_WINATTR_SYSTEM
;
1000 if (dosmode
& FILE_ATTRIBUTE_READONLY
){
1001 attrs
.winAttrs
|= GPFS_WINATTR_READONLY
;
1003 if (dosmode
& FILE_ATTRIBUTE_SPARSE
) {
1004 attrs
.winAttrs
|= GPFS_WINATTR_SPARSE_FILE
;
1008 ret
= set_gpfs_winattrs(CONST_DISCARD(char *, path
),
1009 GPFS_WINATTR_SET_ATTRS
, &attrs
);
1011 if (errno
== ENOSYS
) {
1012 return SMB_VFS_NEXT_SETXATTR(handle
, path
, name
, value
,
1016 DEBUG(1, ("gpfs_set_xattr:Set GPFS attributes failed %d\n",ret
));
1020 DEBUG(10, ("gpfs_set_xattr:Set attributes: 0x%x\n",attrs
.winAttrs
));
1024 static ssize_t
gpfs_get_xattr(struct vfs_handle_struct
*handle
, const char *path
,
1025 const char *name
, void *value
, size_t size
){
1026 char *attrstr
= value
;
1027 unsigned int dosmode
= 0;
1028 struct gpfs_winattr attrs
;
1031 DEBUG(10, ("gpfs_get_xattr: %s \n",path
));
1033 /* Only handle DOS Attributes */
1034 if (strcmp(name
,SAMBA_XATTR_DOS_ATTRIB
) != 0){
1035 DEBUG(5, ("gpfs_get_xattr:name is %s\n",name
));
1036 return SMB_VFS_NEXT_GETXATTR(handle
,path
,name
,value
,size
);
1039 ret
= get_gpfs_winattrs(CONST_DISCARD(char *, path
), &attrs
);
1041 if (errno
== ENOSYS
) {
1042 return SMB_VFS_NEXT_GETXATTR(handle
, path
, name
, value
,
1046 DEBUG(1, ("gpfs_get_xattr: Get GPFS attributes failed: "
1047 "%d (%s)\n", ret
, strerror(errno
)));
1051 DEBUG(10, ("gpfs_get_xattr:Got attributes: 0x%x\n",attrs
.winAttrs
));
1053 /*Just map RD_ONLY, ARCHIVE, SYSTEM, HIDDEN and SPARSE. Ignore the others*/
1054 if (attrs
.winAttrs
& GPFS_WINATTR_ARCHIVE
){
1055 dosmode
|= FILE_ATTRIBUTE_ARCHIVE
;
1057 if (attrs
.winAttrs
& GPFS_WINATTR_HIDDEN
){
1058 dosmode
|= FILE_ATTRIBUTE_HIDDEN
;
1060 if (attrs
.winAttrs
& GPFS_WINATTR_SYSTEM
){
1061 dosmode
|= FILE_ATTRIBUTE_SYSTEM
;
1063 if (attrs
.winAttrs
& GPFS_WINATTR_READONLY
){
1064 dosmode
|= FILE_ATTRIBUTE_READONLY
;
1066 if (attrs
.winAttrs
& GPFS_WINATTR_SPARSE_FILE
) {
1067 dosmode
|= FILE_ATTRIBUTE_SPARSE
;
1070 snprintf(attrstr
, size
, "0x%2.2x",
1071 (unsigned int)(dosmode
& SAMBA_ATTRIBUTES_MASK
));
1072 DEBUG(10, ("gpfs_get_xattr: returning %s\n",attrstr
));
1076 static int vfs_gpfs_stat(struct vfs_handle_struct
*handle
,
1077 struct smb_filename
*smb_fname
)
1079 struct gpfs_winattr attrs
;
1084 ret
= SMB_VFS_NEXT_STAT(handle
, smb_fname
);
1088 status
= get_full_smb_filename(talloc_tos(), smb_fname
, &fname
);
1089 if (!NT_STATUS_IS_OK(status
)) {
1090 errno
= map_errno_from_nt_status(status
);
1093 ret
= get_gpfs_winattrs(CONST_DISCARD(char *, fname
), &attrs
);
1096 smb_fname
->st
.st_ex_btime
.tv_sec
= attrs
.creationTime
.tv_sec
;
1097 smb_fname
->st
.st_ex_btime
.tv_nsec
= attrs
.creationTime
.tv_nsec
;
1098 smb_fname
->st
.vfs_private
= attrs
.winAttrs
;
1103 static int vfs_gpfs_fstat(struct vfs_handle_struct
*handle
,
1104 struct files_struct
*fsp
, SMB_STRUCT_STAT
*sbuf
)
1106 struct gpfs_winattr attrs
;
1109 ret
= SMB_VFS_NEXT_FSTAT(handle
, fsp
, sbuf
);
1113 if ((fsp
->fh
== NULL
) || (fsp
->fh
->fd
== -1)) {
1116 ret
= smbd_fget_gpfs_winattrs(fsp
->fh
->fd
, &attrs
);
1118 sbuf
->st_ex_btime
.tv_sec
= attrs
.creationTime
.tv_sec
;
1119 sbuf
->st_ex_btime
.tv_nsec
= attrs
.creationTime
.tv_nsec
;
1124 static int vfs_gpfs_lstat(struct vfs_handle_struct
*handle
,
1125 struct smb_filename
*smb_fname
)
1127 struct gpfs_winattr attrs
;
1132 ret
= SMB_VFS_NEXT_LSTAT(handle
, smb_fname
);
1136 status
= get_full_smb_filename(talloc_tos(), smb_fname
, &path
);
1137 if (!NT_STATUS_IS_OK(status
)) {
1138 errno
= map_errno_from_nt_status(status
);
1141 ret
= get_gpfs_winattrs(CONST_DISCARD(char *, path
), &attrs
);
1144 smb_fname
->st
.st_ex_btime
.tv_sec
= attrs
.creationTime
.tv_sec
;
1145 smb_fname
->st
.st_ex_btime
.tv_nsec
= attrs
.creationTime
.tv_nsec
;
1146 smb_fname
->st
.vfs_private
= attrs
.winAttrs
;
1151 static int vfs_gpfs_ntimes(struct vfs_handle_struct
*handle
,
1152 const struct smb_filename
*smb_fname
,
1153 struct smb_file_time
*ft
)
1156 struct gpfs_winattr attrs
;
1161 ret
= SMB_VFS_NEXT_NTIMES(handle
, smb_fname
, ft
);
1163 DEBUG(1,("vfs_gpfs_ntimes: SMB_VFS_NEXT_NTIMES failed\n"));
1167 if(null_timespec(ft
->create_time
)){
1168 DEBUG(10,("vfs_gpfs_ntimes:Create Time is NULL\n"));
1172 status
= get_full_smb_filename(talloc_tos(), smb_fname
, &path
);
1173 if (!NT_STATUS_IS_OK(status
)) {
1174 errno
= map_errno_from_nt_status(status
);
1179 attrs
.creationTime
.tv_sec
= ft
->create_time
.tv_sec
;
1180 attrs
.creationTime
.tv_nsec
= ft
->create_time
.tv_nsec
;
1182 ret
= set_gpfs_winattrs(CONST_DISCARD(char *, path
),
1183 GPFS_WINATTR_SET_CREATION_TIME
, &attrs
);
1184 if(ret
== -1 && errno
!= ENOSYS
){
1185 DEBUG(1,("vfs_gpfs_ntimes: set GPFS ntimes failed %d\n",ret
));
1192 static int vfs_gpfs_ftruncate(vfs_handle_struct
*handle
, files_struct
*fsp
,
1197 result
= smbd_gpfs_ftruncate(fsp
->fh
->fd
, len
);
1198 if ((result
== -1) && (errno
== ENOSYS
)) {
1199 return SMB_VFS_NEXT_FTRUNCATE(handle
, fsp
, len
);
1204 static bool vfs_gpfs_is_offline(struct vfs_handle_struct
*handle
,
1205 const struct smb_filename
*fname
,
1206 SMB_STRUCT_STAT
*sbuf
)
1208 struct gpfs_winattr attrs
;
1212 status
= get_full_smb_filename(talloc_tos(), fname
, &path
);
1213 if (!NT_STATUS_IS_OK(status
)) {
1214 errno
= map_errno_from_nt_status(status
);
1218 if (VALID_STAT(*sbuf
)) {
1219 attrs
.winAttrs
= sbuf
->vfs_private
;
1222 ret
= get_gpfs_winattrs(path
, &attrs
);
1229 if ((attrs
.winAttrs
& GPFS_WINATTR_OFFLINE
) != 0) {
1230 DEBUG(10, ("%s is offline\n", path
));
1234 DEBUG(10, ("%s is online\n", path
));
1236 return SMB_VFS_NEXT_IS_OFFLINE(handle
, fname
, sbuf
);
1239 static bool vfs_gpfs_aio_force(struct vfs_handle_struct
*handle
,
1240 struct files_struct
*fsp
)
1242 return vfs_gpfs_is_offline(handle
, fsp
->fsp_name
, &fsp
->fsp_name
->st
);
1245 static ssize_t
vfs_gpfs_sendfile(vfs_handle_struct
*handle
, int tofd
,
1246 files_struct
*fsp
, const DATA_BLOB
*hdr
,
1247 SMB_OFF_T offset
, size_t n
)
1249 if ((fsp
->fsp_name
->st
.vfs_private
& GPFS_WINATTR_OFFLINE
) != 0) {
1253 return SMB_VFS_NEXT_SENDFILE(handle
, tofd
, fsp
, hdr
, offset
, n
);
1256 int vfs_gpfs_connect(struct vfs_handle_struct
*handle
, const char *service
,
1259 struct gpfs_config_data
*config
;
1261 smbd_gpfs_lib_init();
1263 int ret
= SMB_VFS_NEXT_CONNECT(handle
, service
, user
);
1269 config
= talloc_zero(handle
->conn
, struct gpfs_config_data
);
1271 SMB_VFS_NEXT_DISCONNECT(handle
);
1272 DEBUG(0, ("talloc_zero() failed\n")); return -1;
1275 config
->sharemodes
= lp_parm_bool(SNUM(handle
->conn
), "gpfs",
1276 "sharemodes", true);
1278 config
->leases
= lp_parm_bool(SNUM(handle
->conn
), "gpfs",
1281 config
->hsm
= lp_parm_bool(SNUM(handle
->conn
), "gpfs",
1284 SMB_VFS_HANDLE_SET_DATA(handle
, config
,
1285 NULL
, struct gpfs_config_data
,
1291 static uint32_t vfs_gpfs_capabilities(struct vfs_handle_struct
*handle
,
1292 enum timestamp_set_resolution
*p_ts_res
)
1294 struct gpfs_config_data
*config
;
1297 next
= SMB_VFS_NEXT_FS_CAPABILITIES(handle
, p_ts_res
);
1299 SMB_VFS_HANDLE_GET_DATA(handle
, config
,
1300 struct gpfs_config_data
,
1304 next
|= FILE_SUPPORTS_REMOTE_STORAGE
;
1309 static int vfs_gpfs_open(struct vfs_handle_struct
*handle
,
1310 struct smb_filename
*smb_fname
, files_struct
*fsp
,
1311 int flags
, mode_t mode
)
1313 if (lp_parm_bool(fsp
->conn
->params
->service
, "gpfs", "syncio",
1317 return SMB_VFS_NEXT_OPEN(handle
, smb_fname
, fsp
, flags
, mode
);
1321 static struct vfs_fn_pointers vfs_gpfs_fns
= {
1322 .connect_fn
= vfs_gpfs_connect
,
1323 .fs_capabilities
= vfs_gpfs_capabilities
,
1324 .kernel_flock
= vfs_gpfs_kernel_flock
,
1325 .linux_setlease
= vfs_gpfs_setlease
,
1326 .get_real_filename
= vfs_gpfs_get_real_filename
,
1327 .fget_nt_acl
= gpfsacl_fget_nt_acl
,
1328 .get_nt_acl
= gpfsacl_get_nt_acl
,
1329 .fset_nt_acl
= gpfsacl_fset_nt_acl
,
1330 .sys_acl_get_file
= gpfsacl_sys_acl_get_file
,
1331 .sys_acl_get_fd
= gpfsacl_sys_acl_get_fd
,
1332 .sys_acl_set_file
= gpfsacl_sys_acl_set_file
,
1333 .sys_acl_set_fd
= gpfsacl_sys_acl_set_fd
,
1334 .sys_acl_delete_def_file
= gpfsacl_sys_acl_delete_def_file
,
1335 .chmod
= vfs_gpfs_chmod
,
1336 .fchmod
= vfs_gpfs_fchmod
,
1337 .close_fn
= vfs_gpfs_close
,
1338 .setxattr
= gpfs_set_xattr
,
1339 .getxattr
= gpfs_get_xattr
,
1340 .stat
= vfs_gpfs_stat
,
1341 .fstat
= vfs_gpfs_fstat
,
1342 .lstat
= vfs_gpfs_lstat
,
1343 .ntimes
= vfs_gpfs_ntimes
,
1344 .is_offline
= vfs_gpfs_is_offline
,
1345 .aio_force
= vfs_gpfs_aio_force
,
1346 .sendfile
= vfs_gpfs_sendfile
,
1347 .open_fn
= vfs_gpfs_open
,
1348 .ftruncate
= vfs_gpfs_ftruncate
1351 NTSTATUS
vfs_gpfs_init(void);
1352 NTSTATUS
vfs_gpfs_init(void)
1356 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION
, "gpfs",