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/>.
29 #define DBGC_CLASS DBGC_VFS
32 #include "nfs4_acls.h"
35 static int vfs_gpfs_kernel_flock(vfs_handle_struct
*handle
, files_struct
*fsp
,
36 int fd
, uint32 share_mode
)
39 START_PROFILE(syscall_kernel_flock
);
41 kernel_flock(fsp
->fh
->fd
, share_mode
);
43 if (!set_gpfs_sharemode(fsp
, fsp
->access_mask
, fsp
->share_access
)) {
49 END_PROFILE(syscall_kernel_flock
);
54 static int vfs_gpfs_setlease(vfs_handle_struct
*handle
, files_struct
*fsp
,
55 int fd
, int leasetype
)
59 START_PROFILE(syscall_linux_setlease
);
61 if ( linux_set_lease_sighandler(fd
) == -1)
64 ret
= set_gpfs_lease(fd
,leasetype
);
67 /* This must have come from GPFS not being available */
68 /* or some other error, hence call the default */
69 ret
= linux_setlease(fd
, leasetype
);
72 END_PROFILE(syscall_linux_setlease
);
79 static void gpfs_dumpacl(int level
, struct gpfs_acl
*gacl
)
84 DEBUG(0, ("gpfs acl is NULL\n"));
88 DEBUG(level
, ("gpfs acl: nace: %d, type:%d, version:%d, level:%d, len:%d\n",
89 gacl
->acl_nace
, gacl
->acl_type
, gacl
->acl_version
, gacl
->acl_level
, gacl
->acl_len
));
90 for(i
=0; i
<gacl
->acl_nace
; i
++)
92 struct gpfs_ace_v4
*gace
= gacl
->ace_v4
+ i
;
93 DEBUG(level
, ("\tace[%d]: type:%d, flags:0x%x, mask:0x%x, iflags:0x%x, who:%u\n",
94 i
, gace
->aceType
, gace
->aceFlags
, gace
->aceMask
,
95 gace
->aceIFlags
, gace
->aceWho
));
99 static struct gpfs_acl
*gpfs_getacl_alloc(const char *fname
, gpfs_aclType_t type
)
101 struct gpfs_acl
*acl
;
104 TALLOC_CTX
*mem_ctx
= talloc_tos();
106 acl
= (struct gpfs_acl
*)TALLOC_SIZE(mem_ctx
, len
);
114 acl
->acl_version
= 0;
115 acl
->acl_type
= type
;
117 ret
= smbd_gpfs_getacl((char *)fname
, GPFS_GETACL_STRUCT
| GPFS_ACL_SAMBA
, acl
);
118 if ((ret
!= 0) && (errno
== ENOSPC
)) {
119 struct gpfs_acl
*new_acl
= (struct gpfs_acl
*)TALLOC_SIZE(
120 mem_ctx
, acl
->acl_len
+ sizeof(struct gpfs_acl
));
121 if (new_acl
== NULL
) {
126 new_acl
->acl_len
= acl
->acl_len
;
127 new_acl
->acl_level
= acl
->acl_level
;
128 new_acl
->acl_version
= acl
->acl_version
;
129 new_acl
->acl_type
= acl
->acl_type
;
132 ret
= smbd_gpfs_getacl((char *)fname
, GPFS_GETACL_STRUCT
| GPFS_ACL_SAMBA
, acl
);
136 DEBUG(8, ("smbd_gpfs_getacl failed with %s\n",strerror(errno
)));
143 /* Tries to get nfs4 acls and returns SMB ACL allocated.
144 * On failure returns 1 if it got non-NFSv4 ACL to prompt
145 * retry with POSIX ACL checks.
146 * On failure returns -1 if there is system (GPFS) error, check errno.
147 * Returns 0 on success
149 static int gpfs_get_nfs4_acl(const char *fname
, SMB4ACL_T
**ppacl
)
152 struct gpfs_acl
*gacl
= NULL
;
153 DEBUG(10, ("gpfs_get_nfs4_acl invoked for %s\n", fname
));
155 /* First get the real acl length */
156 gacl
= gpfs_getacl_alloc(fname
, GPFS_ACL_TYPE_NFS4
);
158 DEBUG(9, ("gpfs_getacl failed for %s with %s\n",
159 fname
, strerror(errno
)));
163 if (gacl
->acl_type
!= GPFS_ACL_TYPE_NFS4
) {
164 DEBUG(10, ("Got non-nfsv4 acl\n"));
165 /* Retry with POSIX ACLs check */
169 *ppacl
= smb_create_smb4acl();
171 DEBUG(10, ("len: %d, level: %d, version: %d, nace: %d\n",
172 gacl
->acl_len
, gacl
->acl_level
, gacl
->acl_version
,
175 for (i
=0; i
<gacl
->acl_nace
; i
++) {
176 struct gpfs_ace_v4
*gace
= &gacl
->ace_v4
[i
];
177 SMB_ACE4PROP_T smbace
;
178 DEBUG(10, ("type: %d, iflags: %x, flags: %x, mask: %x, "
179 "who: %d\n", gace
->aceType
, gace
->aceIFlags
,
180 gace
->aceFlags
, gace
->aceMask
, gace
->aceWho
));
182 memset(&smbace
, 0, sizeof(SMB4ACE_T
));
183 if (gace
->aceIFlags
& ACE4_IFLAG_SPECIAL_ID
) {
184 smbace
.flags
|= SMB_ACE4_ID_SPECIAL
;
185 switch (gace
->aceWho
) {
186 case ACE4_SPECIAL_OWNER
:
187 smbace
.who
.special_id
= SMB_ACE4_WHO_OWNER
;
189 case ACE4_SPECIAL_GROUP
:
190 smbace
.who
.special_id
= SMB_ACE4_WHO_GROUP
;
192 case ACE4_SPECIAL_EVERYONE
:
193 smbace
.who
.special_id
= SMB_ACE4_WHO_EVERYONE
;
196 DEBUG(8, ("invalid special gpfs id %d "
197 "ignored\n", gace
->aceWho
));
198 continue; /* don't add it */
201 if (gace
->aceFlags
& ACE4_FLAG_GROUP_ID
)
202 smbace
.who
.gid
= gace
->aceWho
;
204 smbace
.who
.uid
= gace
->aceWho
;
207 /* remove redundent deny entries */
208 if (i
> 0 && gace
->aceType
== SMB_ACE4_ACCESS_DENIED_ACE_TYPE
) {
209 struct gpfs_ace_v4
*prev
= &gacl
->ace_v4
[i
-1];
210 if (prev
->aceType
== SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE
&&
211 prev
->aceFlags
== gace
->aceFlags
&&
212 prev
->aceIFlags
== gace
->aceIFlags
&&
213 (gace
->aceMask
& prev
->aceMask
) == 0 &&
214 gace
->aceWho
== prev
->aceWho
) {
215 /* its redundent - skip it */
220 smbace
.aceType
= gace
->aceType
;
221 smbace
.aceFlags
= gace
->aceFlags
;
222 smbace
.aceMask
= gace
->aceMask
;
223 smb_add_ace4(*ppacl
, &smbace
);
229 static NTSTATUS
gpfsacl_get_nt_acl_common(files_struct
*fsp
,
230 uint32 security_info
, SEC_DESC
**ppdesc
)
232 SMB4ACL_T
*pacl
= NULL
;
236 result
= gpfs_get_nfs4_acl(fsp
->fsp_name
, &pacl
);
239 return smb_get_nt_acl_nfs4(fsp
, security_info
, ppdesc
, pacl
);
242 DEBUG(10, ("retrying with posix acl...\n"));
243 return get_nt_acl(fsp
, security_info
, ppdesc
);
246 /* GPFS ACL was not read, something wrong happened, error code is set in errno */
247 return map_nt_error_from_unix(errno
);
250 NTSTATUS
gpfsacl_fget_nt_acl(vfs_handle_struct
*handle
,
251 files_struct
*fsp
, int fd
, uint32 security_info
,
254 return gpfsacl_get_nt_acl_common(fsp
, security_info
, ppdesc
);
257 NTSTATUS
gpfsacl_get_nt_acl(vfs_handle_struct
*handle
,
258 files_struct
*fsp
, const char *name
,
259 uint32 security_info
, SEC_DESC
**ppdesc
)
261 return gpfsacl_get_nt_acl_common(fsp
, security_info
, ppdesc
);
264 static bool gpfsacl_process_smbacl(files_struct
*fsp
, SMB4ACL_T
*smbacl
)
267 gpfs_aclLen_t gacl_len
;
269 struct gpfs_acl
*gacl
;
270 TALLOC_CTX
*mem_ctx
= talloc_tos();
272 gacl_len
= sizeof(struct gpfs_acl
) +
273 (smb_get_naces(smbacl
)-1)*sizeof(gpfs_ace_v4_t
);
275 gacl
= TALLOC_SIZE(mem_ctx
, gacl_len
);
277 DEBUG(0, ("talloc failed\n"));
282 gacl
->acl_len
= gacl_len
;
284 gacl
->acl_version
= GPFS_ACL_VERSION_NFS4
;
285 gacl
->acl_type
= GPFS_ACL_TYPE_NFS4
;
286 gacl
->acl_nace
= 0; /* change later... */
288 for (smbace
=smb_first_ace4(smbacl
); smbace
!=NULL
; smbace
= smb_next_ace4(smbace
)) {
289 struct gpfs_ace_v4
*gace
= &gacl
->ace_v4
[gacl
->acl_nace
];
290 SMB_ACE4PROP_T
*aceprop
= smb_get_ace4(smbace
);
292 gace
->aceType
= aceprop
->aceType
;
293 gace
->aceFlags
= aceprop
->aceFlags
;
294 gace
->aceMask
= aceprop
->aceMask
;
295 gace
->aceIFlags
= (aceprop
->flags
&SMB_ACE4_ID_SPECIAL
) ? ACE4_IFLAG_SPECIAL_ID
: 0;
297 if (aceprop
->flags
&SMB_ACE4_ID_SPECIAL
)
299 switch(aceprop
->who
.special_id
)
301 case SMB_ACE4_WHO_EVERYONE
:
302 gace
->aceWho
= ACE4_SPECIAL_EVERYONE
;
304 case SMB_ACE4_WHO_OWNER
:
305 gace
->aceWho
= ACE4_SPECIAL_OWNER
;
307 case SMB_ACE4_WHO_GROUP
:
308 gace
->aceWho
= ACE4_SPECIAL_GROUP
;
311 DEBUG(8, ("unsupported special_id %d\n", aceprop
->who
.special_id
));
312 continue; /* don't add it !!! */
315 /* just only for the type safety... */
316 if (aceprop
->aceFlags
&SMB_ACE4_IDENTIFIER_GROUP
)
317 gace
->aceWho
= aceprop
->who
.gid
;
319 gace
->aceWho
= aceprop
->who
.uid
;
325 ret
= smbd_gpfs_putacl(fsp
->fsp_name
, GPFS_PUTACL_STRUCT
| GPFS_ACL_SAMBA
, gacl
);
327 DEBUG(8, ("gpfs_putacl failed with %s\n", strerror(errno
)));
328 gpfs_dumpacl(8, gacl
);
332 DEBUG(10, ("gpfs_putacl succeeded\n"));
336 static NTSTATUS
gpfsacl_set_nt_acl_internal(files_struct
*fsp
, uint32 security_info_sent
, SEC_DESC
*psd
)
338 struct gpfs_acl
*acl
;
339 NTSTATUS result
= NT_STATUS_ACCESS_DENIED
;
341 acl
= gpfs_getacl_alloc(fsp
->fsp_name
, GPFS_ACL_TYPE_ACCESS
);
345 if (acl
->acl_version
&GPFS_ACL_VERSION_NFS4
)
347 result
= smb_set_nt_acl_nfs4(
348 fsp
, security_info_sent
, psd
,
349 gpfsacl_process_smbacl
);
350 } else { /* assume POSIX ACL - by default... */
351 result
= set_nt_acl(fsp
, security_info_sent
, psd
);
357 static NTSTATUS
gpfsacl_fset_nt_acl(vfs_handle_struct
*handle
, files_struct
*fsp
, int fd
, uint32 security_info_sent
, SEC_DESC
*psd
)
359 return gpfsacl_set_nt_acl_internal(fsp
, security_info_sent
, psd
);
362 static NTSTATUS
gpfsacl_set_nt_acl(vfs_handle_struct
*handle
, files_struct
*fsp
, char *name
, uint32 security_info_sent
, SEC_DESC
*psd
)
364 return gpfsacl_set_nt_acl_internal(fsp
, security_info_sent
, psd
);
367 static SMB_ACL_T
gpfs2smb_acl(const struct gpfs_acl
*pacl
)
372 result
= sys_acl_init(pacl
->acl_nace
);
373 if (result
== NULL
) {
378 result
->count
= pacl
->acl_nace
;
380 for (i
=0; i
<pacl
->acl_nace
; i
++) {
381 struct smb_acl_entry
*ace
= &result
->acl
[i
];
382 const struct gpfs_ace_v1
*g_ace
= &pacl
->ace_v1
[i
];
384 DEBUG(10, ("Converting type %d id %lu perm %x\n",
385 (int)g_ace
->ace_type
, (unsigned long)g_ace
->ace_who
,
386 (int)g_ace
->ace_perm
));
388 switch (g_ace
->ace_type
) {
390 ace
->a_type
= SMB_ACL_USER
;
391 ace
->uid
= (uid_t
)g_ace
->ace_who
;
393 case GPFS_ACL_USER_OBJ
:
394 ace
->a_type
= SMB_ACL_USER_OBJ
;
397 ace
->a_type
= SMB_ACL_GROUP
;
398 ace
->gid
= (gid_t
)g_ace
->ace_who
;
400 case GPFS_ACL_GROUP_OBJ
:
401 ace
->a_type
= SMB_ACL_GROUP_OBJ
;
404 ace
->a_type
= SMB_ACL_OTHER
;
407 ace
->a_type
= SMB_ACL_MASK
;
410 DEBUG(10, ("Got invalid ace_type: %d\n",
418 ace
->a_perm
|= (g_ace
->ace_perm
& ACL_PERM_READ
) ?
420 ace
->a_perm
|= (g_ace
->ace_perm
& ACL_PERM_WRITE
) ?
422 ace
->a_perm
|= (g_ace
->ace_perm
& ACL_PERM_EXECUTE
) ?
425 DEBUGADD(10, ("Converted to %d perm %x\n",
426 ace
->a_type
, ace
->a_perm
));
432 static SMB_ACL_T
gpfsacl_get_posix_acl(const char *path
, gpfs_aclType_t type
)
434 struct gpfs_acl
*pacl
;
435 SMB_ACL_T result
= NULL
;
437 pacl
= gpfs_getacl_alloc(path
, type
);
440 DEBUG(10, ("gpfs_getacl failed for %s with %s\n",
441 path
, strerror(errno
)));
448 if (pacl
->acl_version
!= GPFS_ACL_VERSION_POSIX
) {
449 DEBUG(10, ("Got acl version %d, expected %d\n",
450 pacl
->acl_version
, GPFS_ACL_VERSION_POSIX
));
455 DEBUG(10, ("len: %d, level: %d, version: %d, nace: %d\n",
456 pacl
->acl_len
, pacl
->acl_level
, pacl
->acl_version
,
459 result
= gpfs2smb_acl(pacl
);
460 if (result
== NULL
) {
472 SMB_ACL_T
gpfsacl_sys_acl_get_file(vfs_handle_struct
*handle
,
477 gpfs_aclType_t gpfs_type
;
480 case SMB_ACL_TYPE_ACCESS
:
481 gpfs_type
= GPFS_ACL_TYPE_ACCESS
;
483 case SMB_ACL_TYPE_DEFAULT
:
484 gpfs_type
= GPFS_ACL_TYPE_DEFAULT
;
487 DEBUG(0, ("Got invalid type: %d\n", type
));
488 smb_panic("exiting");
491 return gpfsacl_get_posix_acl(path_p
, gpfs_type
);
494 SMB_ACL_T
gpfsacl_sys_acl_get_fd(vfs_handle_struct
*handle
,
498 return gpfsacl_get_posix_acl(fsp
->fsp_name
, GPFS_ACL_TYPE_ACCESS
);
501 static struct gpfs_acl
*smb2gpfs_acl(const SMB_ACL_T pacl
,
505 struct gpfs_acl
*result
;
509 gpfs_ace_v1_t ace_v1
[1]; /* when GPFS_ACL_VERSION_POSIX */
510 gpfs_ace_v4_t ace_v4
[1]; /* when GPFS_ACL_VERSION_NFS4 */
513 DEBUG(10, ("smb2gpfs_acl: Got ACL with %d entries\n", pacl
->count
));
515 len
= sizeof(struct gpfs_acl
) - sizeof(union gpfs_ace_union
) +
516 (pacl
->count
)*sizeof(gpfs_ace_v1_t
);
518 result
= SMB_MALLOC(len
);
519 if (result
== NULL
) {
524 result
->acl_len
= len
;
525 result
->acl_level
= 0;
526 result
->acl_version
= GPFS_ACL_VERSION_POSIX
;
527 result
->acl_type
= (type
== SMB_ACL_TYPE_DEFAULT
) ?
528 GPFS_ACL_TYPE_DEFAULT
: GPFS_ACL_TYPE_ACCESS
;
529 result
->acl_nace
= pacl
->count
;
531 for (i
=0; i
<pacl
->count
; i
++) {
532 const struct smb_acl_entry
*ace
= &pacl
->acl
[i
];
533 struct gpfs_ace_v1
*g_ace
= &result
->ace_v1
[i
];
535 DEBUG(10, ("Converting type %d perm %x\n",
536 (int)ace
->a_type
, (int)ace
->a_perm
));
540 switch(ace
->a_type
) {
542 g_ace
->ace_type
= GPFS_ACL_USER
;
543 g_ace
->ace_who
= (gpfs_uid_t
)ace
->uid
;
545 case SMB_ACL_USER_OBJ
:
546 g_ace
->ace_type
= GPFS_ACL_USER_OBJ
;
547 g_ace
->ace_perm
|= ACL_PERM_CONTROL
;
551 g_ace
->ace_type
= GPFS_ACL_GROUP
;
552 g_ace
->ace_who
= (gpfs_uid_t
)ace
->gid
;
554 case SMB_ACL_GROUP_OBJ
:
555 g_ace
->ace_type
= GPFS_ACL_GROUP_OBJ
;
559 g_ace
->ace_type
= GPFS_ACL_MASK
;
560 g_ace
->ace_perm
= 0x8f;
564 g_ace
->ace_type
= GPFS_ACL_OTHER
;
568 DEBUG(10, ("Got invalid ace_type: %d\n", ace
->a_type
));
574 g_ace
->ace_perm
|= (ace
->a_perm
& SMB_ACL_READ
) ?
576 g_ace
->ace_perm
|= (ace
->a_perm
& SMB_ACL_WRITE
) ?
578 g_ace
->ace_perm
|= (ace
->a_perm
& SMB_ACL_EXECUTE
) ?
579 ACL_PERM_EXECUTE
: 0;
581 DEBUGADD(10, ("Converted to %d id %d perm %x\n",
582 g_ace
->ace_type
, g_ace
->ace_who
, g_ace
->ace_perm
));
588 int gpfsacl_sys_acl_set_file(vfs_handle_struct
*handle
,
594 struct gpfs_acl
*gpfs_acl
;
597 gpfs_acl
= smb2gpfs_acl(theacl
, type
);
598 if (gpfs_acl
== NULL
) {
602 result
= smbd_gpfs_putacl((char *)name
, GPFS_PUTACL_STRUCT
| GPFS_ACL_SAMBA
, gpfs_acl
);
608 int gpfsacl_sys_acl_set_fd(vfs_handle_struct
*handle
,
610 int fd
, SMB_ACL_T theacl
)
612 return gpfsacl_sys_acl_set_file(handle
, fsp
->fsp_name
, SMB_ACL_TYPE_ACCESS
, theacl
);
615 int gpfsacl_sys_acl_delete_def_file(vfs_handle_struct
*handle
,
623 static int vfs_gpfs_chmod(vfs_handle_struct
*handle
, const char *path
, mode_t mode
)
626 if (SMB_VFS_NEXT_STAT(handle
, path
, &st
) != 0) {
629 /* avoid chmod() if possible, to preserve acls */
630 if ((st
.st_mode
& ~S_IFMT
) == mode
) {
633 return SMB_VFS_NEXT_CHMOD(handle
, path
, mode
);
636 static int vfs_gpfs_fchmod(vfs_handle_struct
*handle
, files_struct
*fsp
, int fd
, mode_t mode
)
639 if (SMB_VFS_NEXT_FSTAT(handle
, fsp
, fd
, &st
) != 0) {
642 /* avoid chmod() if possible, to preserve acls */
643 if ((st
.st_mode
& ~S_IFMT
) == mode
) {
646 return SMB_VFS_NEXT_FCHMOD(handle
, fsp
, fd
, mode
);
649 /* VFS operations structure */
651 static vfs_op_tuple gpfs_op_tuples
[] = {
653 { SMB_VFS_OP(vfs_gpfs_kernel_flock
), SMB_VFS_OP_KERNEL_FLOCK
,
654 SMB_VFS_LAYER_OPAQUE
},
656 { SMB_VFS_OP(vfs_gpfs_setlease
), SMB_VFS_OP_LINUX_SETLEASE
,
657 SMB_VFS_LAYER_OPAQUE
},
659 { SMB_VFS_OP(gpfsacl_fget_nt_acl
), SMB_VFS_OP_FGET_NT_ACL
,
660 SMB_VFS_LAYER_TRANSPARENT
},
662 { SMB_VFS_OP(gpfsacl_get_nt_acl
), SMB_VFS_OP_GET_NT_ACL
,
663 SMB_VFS_LAYER_TRANSPARENT
},
665 { SMB_VFS_OP(gpfsacl_fset_nt_acl
), SMB_VFS_OP_FSET_NT_ACL
,
666 SMB_VFS_LAYER_TRANSPARENT
},
668 { SMB_VFS_OP(gpfsacl_set_nt_acl
), SMB_VFS_OP_SET_NT_ACL
,
669 SMB_VFS_LAYER_TRANSPARENT
},
671 { SMB_VFS_OP(gpfsacl_sys_acl_get_file
), SMB_VFS_OP_SYS_ACL_GET_FILE
,
672 SMB_VFS_LAYER_TRANSPARENT
},
674 { SMB_VFS_OP(gpfsacl_sys_acl_get_fd
), SMB_VFS_OP_SYS_ACL_GET_FD
,
675 SMB_VFS_LAYER_TRANSPARENT
},
677 { SMB_VFS_OP(gpfsacl_sys_acl_set_file
), SMB_VFS_OP_SYS_ACL_SET_FILE
,
678 SMB_VFS_LAYER_TRANSPARENT
},
680 { SMB_VFS_OP(gpfsacl_sys_acl_set_fd
), SMB_VFS_OP_SYS_ACL_SET_FD
,
681 SMB_VFS_LAYER_TRANSPARENT
},
683 { SMB_VFS_OP(gpfsacl_sys_acl_delete_def_file
),
684 SMB_VFS_OP_SYS_ACL_DELETE_DEF_FILE
,
685 SMB_VFS_LAYER_TRANSPARENT
},
687 { SMB_VFS_OP(vfs_gpfs_chmod
), SMB_VFS_OP_CHMOD
,
688 SMB_VFS_LAYER_TRANSPARENT
},
690 { SMB_VFS_OP(vfs_gpfs_fchmod
), SMB_VFS_OP_FCHMOD
,
691 SMB_VFS_LAYER_TRANSPARENT
},
693 { SMB_VFS_OP(NULL
), SMB_VFS_OP_NOOP
, SMB_VFS_LAYER_NOOP
}
698 NTSTATUS
vfs_gpfs_init(void);
699 NTSTATUS
vfs_gpfs_init(void)
703 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION
, "gpfs",