2 * Unix SMB/CIFS implementation.
3 * RPC Pipe client / server routines
4 * Copyright (C) Andrew Tridgell 1992-2000,
5 * Copyright (C) Jean François Micouleau 1998-2001.
6 * Copyright (C) Volker Lendecke 2006.
7 * Copyright (C) Gerald Carter 2006.
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 3 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, see <http://www.gnu.org/licenses/>.
24 #include "groupdb/mapping.h"
26 static const struct mapping_backend
*backend
;
29 initialise a group mapping backend
31 static bool init_group_mapping(void)
33 if (backend
!= NULL
) {
34 /* already initialised */
38 backend
= groupdb_tdb_init();
40 return backend
!= NULL
;
43 /****************************************************************************
44 initialise first time the mapping list
45 ****************************************************************************/
46 NTSTATUS
add_initial_entry(gid_t gid
, const char *sid
, enum lsa_SidType sid_name_use
, const char *nt_name
, const char *comment
)
50 if(!init_group_mapping()) {
51 DEBUG(0,("failed to initialize group mapping\n"));
52 return NT_STATUS_UNSUCCESSFUL
;
56 if (!string_to_sid(&map
.sid
, sid
)) {
57 DEBUG(0, ("string_to_sid failed: %s", sid
));
58 return NT_STATUS_UNSUCCESSFUL
;
61 map
.sid_name_use
=sid_name_use
;
62 fstrcpy(map
.nt_name
, nt_name
);
63 fstrcpy(map
.comment
, comment
);
65 return pdb_add_group_mapping_entry(&map
);
68 static NTSTATUS
alias_memberships(const DOM_SID
*members
, size_t num_members
,
69 DOM_SID
**sids
, size_t *num
)
76 for (i
=0; i
<num_members
; i
++) {
77 NTSTATUS status
= backend
->one_alias_membership(&members
[i
], sids
, num
);
78 if (!NT_STATUS_IS_OK(status
))
84 struct aliasmem_closure
{
94 * High level functions
95 * better to use them than the lower ones.
97 * we are checking if the group is in the mapping file
98 * and if the group is an existing unix group
102 /* get a domain group from it's SID */
104 bool get_domain_group_from_sid(DOM_SID sid
, GROUP_MAP
*map
)
109 if(!init_group_mapping()) {
110 DEBUG(0,("failed to initialize group mapping\n"));
114 DEBUG(10, ("get_domain_group_from_sid\n"));
116 /* if the group is NOT in the database, it CAN NOT be a domain group */
119 ret
= pdb_getgrsid(map
, sid
);
122 /* special case check for rid 513 */
127 sid_peek_rid( &sid
, &rid
);
129 if ( rid
== DOMAIN_GROUP_RID_USERS
) {
130 fstrcpy( map
->nt_name
, "None" );
131 fstrcpy( map
->comment
, "Ordinary Users" );
132 sid_copy( &map
->sid
, &sid
);
133 map
->sid_name_use
= SID_NAME_DOM_GRP
;
134 map
->gid
= (gid_t
)-1;
142 DEBUG(10, ("get_domain_group_from_sid: SID found in the TDB\n"));
144 /* if it's not a domain group, continue */
145 if (map
->sid_name_use
!=SID_NAME_DOM_GRP
) {
149 DEBUG(10, ("get_domain_group_from_sid: SID is a domain group\n"));
155 DEBUG(10, ("get_domain_group_from_sid: SID is mapped to gid:%lu\n",(unsigned long)map
->gid
));
157 grp
= getgrgid(map
->gid
);
159 DEBUG(10, ("get_domain_group_from_sid: gid DOESN'T exist in UNIX security\n"));
163 DEBUG(10, ("get_domain_group_from_sid: gid exists in UNIX security\n"));
168 /****************************************************************************
169 Create a UNIX group on demand.
170 ****************************************************************************/
172 int smb_create_group(const char *unix_group
, gid_t
*new_gid
)
174 char *add_script
= NULL
;
180 /* defer to scripts */
182 if ( *lp_addgroup_script() ) {
183 TALLOC_CTX
*ctx
= talloc_tos();
185 add_script
= talloc_strdup(ctx
,
186 lp_addgroup_script());
190 add_script
= talloc_string_sub(ctx
,
191 add_script
, "%g", unix_group
);
196 ret
= smbrun(add_script
, &fd
);
197 DEBUG(ret
? 0 : 3,("smb_create_group: Running the command `%s' gave %d\n",add_script
,ret
));
199 smb_nscd_flush_group_cache();
208 if (read(fd
, output
, sizeof(output
)) > 0) {
209 *new_gid
= (gid_t
)strtoul(output
, NULL
, 10);
218 struct group
*grp
= getgrnam(unix_group
);
221 *new_gid
= grp
->gr_gid
;
227 /****************************************************************************
228 Delete a UNIX group on demand.
229 ****************************************************************************/
231 int smb_delete_group(const char *unix_group
)
233 char *del_script
= NULL
;
236 /* defer to scripts */
238 if ( *lp_delgroup_script() ) {
239 TALLOC_CTX
*ctx
= talloc_tos();
241 del_script
= talloc_strdup(ctx
,
242 lp_delgroup_script());
246 del_script
= talloc_string_sub(ctx
,
247 del_script
, "%g", unix_group
);
251 ret
= smbrun(del_script
,NULL
);
252 DEBUG(ret
? 0 : 3,("smb_delete_group: Running the command `%s' gave %d\n",del_script
,ret
));
254 smb_nscd_flush_group_cache();
262 /****************************************************************************
263 Set a user's primary UNIX group.
264 ****************************************************************************/
266 int smb_set_primary_group(const char *unix_group
, const char* unix_user
)
268 char *add_script
= NULL
;
271 /* defer to scripts */
273 if ( *lp_setprimarygroup_script() ) {
274 TALLOC_CTX
*ctx
= talloc_tos();
276 add_script
= talloc_strdup(ctx
,
277 lp_setprimarygroup_script());
281 add_script
= talloc_all_string_sub(ctx
,
282 add_script
, "%g", unix_group
);
286 add_script
= talloc_string_sub(ctx
,
287 add_script
, "%u", unix_user
);
291 ret
= smbrun(add_script
,NULL
);
293 DEBUG(ret
? 0 : 3,("smb_set_primary_group: "
294 "Running the command `%s' gave %d\n",add_script
,ret
));
296 smb_nscd_flush_group_cache();
304 /****************************************************************************
305 Add a user to a UNIX group.
306 ****************************************************************************/
308 int smb_add_user_group(const char *unix_group
, const char *unix_user
)
310 char *add_script
= NULL
;
313 /* defer to scripts */
315 if ( *lp_addusertogroup_script() ) {
316 TALLOC_CTX
*ctx
= talloc_tos();
318 add_script
= talloc_strdup(ctx
,
319 lp_addusertogroup_script());
323 add_script
= talloc_string_sub(ctx
,
324 add_script
, "%g", unix_group
);
328 add_script
= talloc_string_sub(ctx
,
329 add_script
, "%u", unix_user
);
333 ret
= smbrun(add_script
,NULL
);
334 DEBUG(ret
? 0 : 3,("smb_add_user_group: Running the command `%s' gave %d\n",add_script
,ret
));
336 smb_nscd_flush_group_cache();
344 /****************************************************************************
345 Delete a user from a UNIX group
346 ****************************************************************************/
348 int smb_delete_user_group(const char *unix_group
, const char *unix_user
)
350 char *del_script
= NULL
;
353 /* defer to scripts */
355 if ( *lp_deluserfromgroup_script() ) {
356 TALLOC_CTX
*ctx
= talloc_tos();
358 del_script
= talloc_strdup(ctx
,
359 lp_deluserfromgroup_script());
363 del_script
= talloc_string_sub(ctx
,
364 del_script
, "%g", unix_group
);
368 del_script
= talloc_string_sub(ctx
,
369 del_script
, "%u", unix_user
);
373 ret
= smbrun(del_script
,NULL
);
374 DEBUG(ret
? 0 : 3,("smb_delete_user_group: Running the command `%s' gave %d\n",del_script
,ret
));
376 smb_nscd_flush_group_cache();
385 NTSTATUS
pdb_default_getgrsid(struct pdb_methods
*methods
, GROUP_MAP
*map
,
388 if (!init_group_mapping()) {
389 DEBUG(0,("failed to initialize group mapping\n"));
390 return NT_STATUS_UNSUCCESSFUL
;
392 return backend
->get_group_map_from_sid(sid
, map
) ?
393 NT_STATUS_OK
: NT_STATUS_UNSUCCESSFUL
;
396 NTSTATUS
pdb_default_getgrgid(struct pdb_methods
*methods
, GROUP_MAP
*map
,
399 if (!init_group_mapping()) {
400 DEBUG(0,("failed to initialize group mapping\n"));
401 return NT_STATUS_UNSUCCESSFUL
;
403 return backend
->get_group_map_from_gid(gid
, map
) ?
404 NT_STATUS_OK
: NT_STATUS_UNSUCCESSFUL
;
407 NTSTATUS
pdb_default_getgrnam(struct pdb_methods
*methods
, GROUP_MAP
*map
,
410 if (!init_group_mapping()) {
411 DEBUG(0,("failed to initialize group mapping\n"));
412 return NT_STATUS_UNSUCCESSFUL
;
414 return backend
->get_group_map_from_ntname(name
, map
) ?
415 NT_STATUS_OK
: NT_STATUS_UNSUCCESSFUL
;
418 NTSTATUS
pdb_default_add_group_mapping_entry(struct pdb_methods
*methods
,
421 if (!init_group_mapping()) {
422 DEBUG(0,("failed to initialize group mapping\n"));
423 return NT_STATUS_UNSUCCESSFUL
;
425 return backend
->add_mapping_entry(map
, TDB_INSERT
) ?
426 NT_STATUS_OK
: NT_STATUS_UNSUCCESSFUL
;
429 NTSTATUS
pdb_default_update_group_mapping_entry(struct pdb_methods
*methods
,
432 if (!init_group_mapping()) {
433 DEBUG(0,("failed to initialize group mapping\n"));
434 return NT_STATUS_UNSUCCESSFUL
;
436 return backend
->add_mapping_entry(map
, TDB_REPLACE
) ?
437 NT_STATUS_OK
: NT_STATUS_UNSUCCESSFUL
;
440 NTSTATUS
pdb_default_delete_group_mapping_entry(struct pdb_methods
*methods
,
443 if (!init_group_mapping()) {
444 DEBUG(0,("failed to initialize group mapping\n"));
445 return NT_STATUS_UNSUCCESSFUL
;
447 return backend
->group_map_remove(&sid
) ?
448 NT_STATUS_OK
: NT_STATUS_UNSUCCESSFUL
;
451 NTSTATUS
pdb_default_enum_group_mapping(struct pdb_methods
*methods
,
452 const DOM_SID
*sid
, enum lsa_SidType sid_name_use
,
453 GROUP_MAP
**pp_rmap
, size_t *p_num_entries
,
456 if (!init_group_mapping()) {
457 DEBUG(0,("failed to initialize group mapping\n"));
458 return NT_STATUS_UNSUCCESSFUL
;
460 return backend
->enum_group_mapping(sid
, sid_name_use
, pp_rmap
, p_num_entries
, unix_only
) ?
461 NT_STATUS_OK
: NT_STATUS_UNSUCCESSFUL
;
464 NTSTATUS
pdb_default_create_alias(struct pdb_methods
*methods
,
465 const char *name
, uint32
*rid
)
468 enum lsa_SidType type
;
476 DEBUG(10, ("Trying to create alias %s\n", name
));
478 mem_ctx
= talloc_new(NULL
);
479 if (mem_ctx
== NULL
) {
480 return NT_STATUS_NO_MEMORY
;
483 exists
= lookup_name(mem_ctx
, name
, LOOKUP_NAME_LOCAL
,
484 NULL
, NULL
, &sid
, &type
);
485 TALLOC_FREE(mem_ctx
);
488 return NT_STATUS_ALIAS_EXISTS
;
491 if (!winbind_allocate_gid(&gid
)) {
492 DEBUG(3, ("Could not get a gid out of winbind\n"));
493 return NT_STATUS_ACCESS_DENIED
;
496 if (!pdb_new_rid(&new_rid
)) {
497 DEBUG(0, ("Could not allocate a RID -- wasted a gid :-(\n"));
498 return NT_STATUS_ACCESS_DENIED
;
501 DEBUG(10, ("Creating alias %s with gid %u and rid %u\n",
502 name
, (unsigned int)gid
, (unsigned int)new_rid
));
504 sid_compose(&sid
, get_global_sam_sid(), new_rid
);
507 sid_copy(&map
.sid
, &sid
);
508 map
.sid_name_use
= SID_NAME_ALIAS
;
509 fstrcpy(map
.nt_name
, name
);
510 fstrcpy(map
.comment
, "");
512 status
= pdb_add_group_mapping_entry(&map
);
514 if (!NT_STATUS_IS_OK(status
)) {
515 DEBUG(0, ("Could not add group mapping entry for alias %s "
516 "(%s)\n", name
, nt_errstr(status
)));
525 NTSTATUS
pdb_default_delete_alias(struct pdb_methods
*methods
,
528 return pdb_delete_group_mapping_entry(*sid
);
531 NTSTATUS
pdb_default_get_aliasinfo(struct pdb_methods
*methods
,
533 struct acct_info
*info
)
537 if (!pdb_getgrsid(&map
, *sid
))
538 return NT_STATUS_NO_SUCH_ALIAS
;
540 if ((map
.sid_name_use
!= SID_NAME_ALIAS
) &&
541 (map
.sid_name_use
!= SID_NAME_WKN_GRP
)) {
542 DEBUG(2, ("%s is a %s, expected an alias\n",
544 sid_type_lookup(map
.sid_name_use
)));
545 return NT_STATUS_NO_SUCH_ALIAS
;
548 fstrcpy(info
->acct_name
, map
.nt_name
);
549 fstrcpy(info
->acct_desc
, map
.comment
);
550 sid_peek_rid(&map
.sid
, &info
->rid
);
554 NTSTATUS
pdb_default_set_aliasinfo(struct pdb_methods
*methods
,
556 struct acct_info
*info
)
560 if (!pdb_getgrsid(&map
, *sid
))
561 return NT_STATUS_NO_SUCH_ALIAS
;
563 fstrcpy(map
.nt_name
, info
->acct_name
);
564 fstrcpy(map
.comment
, info
->acct_desc
);
566 return pdb_update_group_mapping_entry(&map
);
569 NTSTATUS
pdb_default_add_aliasmem(struct pdb_methods
*methods
,
570 const DOM_SID
*alias
, const DOM_SID
*member
)
572 if (!init_group_mapping()) {
573 DEBUG(0,("failed to initialize group mapping\n"));
574 return NT_STATUS_UNSUCCESSFUL
;
576 return backend
->add_aliasmem(alias
, member
);
579 NTSTATUS
pdb_default_del_aliasmem(struct pdb_methods
*methods
,
580 const DOM_SID
*alias
, const DOM_SID
*member
)
582 if (!init_group_mapping()) {
583 DEBUG(0,("failed to initialize group mapping\n"));
584 return NT_STATUS_UNSUCCESSFUL
;
586 return backend
->del_aliasmem(alias
, member
);
589 NTSTATUS
pdb_default_enum_aliasmem(struct pdb_methods
*methods
,
590 const DOM_SID
*alias
, TALLOC_CTX
*mem_ctx
,
591 DOM_SID
**pp_members
, size_t *p_num_members
)
593 if (!init_group_mapping()) {
594 DEBUG(0,("failed to initialize group mapping\n"));
595 return NT_STATUS_UNSUCCESSFUL
;
597 return backend
->enum_aliasmem(alias
, mem_ctx
, pp_members
,
601 NTSTATUS
pdb_default_alias_memberships(struct pdb_methods
*methods
,
603 const DOM_SID
*domain_sid
,
604 const DOM_SID
*members
,
606 uint32
**pp_alias_rids
,
607 size_t *p_num_alias_rids
)
610 size_t i
, num_alias_sids
;
613 if (!init_group_mapping()) {
614 DEBUG(0,("failed to initialize group mapping\n"));
615 return NT_STATUS_UNSUCCESSFUL
;
621 result
= alias_memberships(members
, num_members
,
622 &alias_sids
, &num_alias_sids
);
624 if (!NT_STATUS_IS_OK(result
))
627 *p_num_alias_rids
= 0;
629 if (num_alias_sids
== 0) {
630 TALLOC_FREE(alias_sids
);
634 *pp_alias_rids
= TALLOC_ARRAY(mem_ctx
, uint32
, num_alias_sids
);
635 if (*pp_alias_rids
== NULL
)
636 return NT_STATUS_NO_MEMORY
;
638 for (i
=0; i
<num_alias_sids
; i
++) {
639 if (!sid_peek_check_rid(domain_sid
, &alias_sids
[i
],
640 &(*pp_alias_rids
)[*p_num_alias_rids
]))
642 *p_num_alias_rids
+= 1;
645 TALLOC_FREE(alias_sids
);
650 /**********************************************************************
651 no ops for passdb backends that don't implement group mapping
652 *********************************************************************/
654 NTSTATUS
pdb_nop_getgrsid(struct pdb_methods
*methods
, GROUP_MAP
*map
,
657 return NT_STATUS_UNSUCCESSFUL
;
660 NTSTATUS
pdb_nop_getgrgid(struct pdb_methods
*methods
, GROUP_MAP
*map
,
663 return NT_STATUS_UNSUCCESSFUL
;
666 NTSTATUS
pdb_nop_getgrnam(struct pdb_methods
*methods
, GROUP_MAP
*map
,
669 return NT_STATUS_UNSUCCESSFUL
;
672 NTSTATUS
pdb_nop_add_group_mapping_entry(struct pdb_methods
*methods
,
675 return NT_STATUS_UNSUCCESSFUL
;
678 NTSTATUS
pdb_nop_update_group_mapping_entry(struct pdb_methods
*methods
,
681 return NT_STATUS_UNSUCCESSFUL
;
684 NTSTATUS
pdb_nop_delete_group_mapping_entry(struct pdb_methods
*methods
,
687 return NT_STATUS_UNSUCCESSFUL
;
690 NTSTATUS
pdb_nop_enum_group_mapping(struct pdb_methods
*methods
,
691 enum lsa_SidType sid_name_use
,
692 GROUP_MAP
**rmap
, size_t *num_entries
,
695 return NT_STATUS_UNSUCCESSFUL
;
698 /****************************************************************************
699 These need to be redirected through pdb_interface.c
700 ****************************************************************************/
701 bool pdb_get_dom_grp_info(const DOM_SID
*sid
, struct acct_info
*info
)
707 res
= get_domain_group_from_sid(*sid
, &map
);
713 fstrcpy(info
->acct_name
, map
.nt_name
);
714 fstrcpy(info
->acct_desc
, map
.comment
);
715 sid_peek_rid(sid
, &info
->rid
);
719 bool pdb_set_dom_grp_info(const DOM_SID
*sid
, const struct acct_info
*info
)
723 if (!get_domain_group_from_sid(*sid
, &map
))
726 fstrcpy(map
.nt_name
, info
->acct_name
);
727 fstrcpy(map
.comment
, info
->acct_desc
);
729 return NT_STATUS_IS_OK(pdb_update_group_mapping_entry(&map
));
732 /********************************************************************
733 Really just intended to be called by smbd
734 ********************************************************************/
736 NTSTATUS
pdb_create_builtin_alias(uint32 rid
)
739 enum lsa_SidType type
;
744 const char *name
= NULL
;
747 DEBUG(10, ("Trying to create builtin alias %d\n", rid
));
749 if ( !sid_compose( &sid
, &global_sid_Builtin
, rid
) ) {
750 return NT_STATUS_NO_SUCH_ALIAS
;
753 if ( (mem_ctx
= talloc_new(NULL
)) == NULL
) {
754 return NT_STATUS_NO_MEMORY
;
757 if ( !lookup_sid(mem_ctx
, &sid
, NULL
, &name
, &type
) ) {
758 TALLOC_FREE( mem_ctx
);
759 return NT_STATUS_NO_SUCH_ALIAS
;
762 /* validate RID so copy the name and move on */
764 fstrcpy( groupname
, name
);
765 TALLOC_FREE( mem_ctx
);
767 if (!winbind_allocate_gid(&gid
)) {
768 DEBUG(3, ("pdb_create_builtin_alias: Could not get a gid out of winbind\n"));
769 return NT_STATUS_ACCESS_DENIED
;
772 DEBUG(10,("Creating alias %s with gid %u\n", groupname
, (unsigned int)gid
));
775 sid_copy(&map
.sid
, &sid
);
776 map
.sid_name_use
= SID_NAME_ALIAS
;
777 fstrcpy(map
.nt_name
, groupname
);
778 fstrcpy(map
.comment
, "");
780 status
= pdb_add_group_mapping_entry(&map
);
782 if (!NT_STATUS_IS_OK(status
)) {
783 DEBUG(0, ("pdb_create_builtin_alias: Could not add group mapping entry for alias %d "
784 "(%s)\n", rid
, nt_errstr(status
)));