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"
25 #include "../libcli/security/security.h"
27 static const struct mapping_backend
*backend
;
30 initialise a group mapping backend
32 static bool init_group_mapping(void)
34 if (backend
!= NULL
) {
35 /* already initialised */
39 backend
= groupdb_tdb_init();
41 return backend
!= NULL
;
44 /****************************************************************************
45 initialise first time the mapping list
46 ****************************************************************************/
47 NTSTATUS
add_initial_entry(gid_t gid
, const char *sid
, enum lsa_SidType sid_name_use
, const char *nt_name
, const char *comment
)
51 if(!init_group_mapping()) {
52 DEBUG(0,("failed to initialize group mapping\n"));
53 return NT_STATUS_UNSUCCESSFUL
;
57 if (!string_to_sid(&map
.sid
, sid
)) {
58 DEBUG(0, ("string_to_sid failed: %s", sid
));
59 return NT_STATUS_UNSUCCESSFUL
;
62 map
.sid_name_use
=sid_name_use
;
63 fstrcpy(map
.nt_name
, nt_name
);
64 fstrcpy(map
.comment
, comment
);
66 return pdb_add_group_mapping_entry(&map
);
69 static NTSTATUS
alias_memberships(const struct dom_sid
*members
, size_t num_members
,
70 struct dom_sid
**sids
, size_t *num
)
77 for (i
=0; i
<num_members
; i
++) {
78 NTSTATUS status
= backend
->one_alias_membership(&members
[i
], sids
, num
);
79 if (!NT_STATUS_IS_OK(status
))
85 struct aliasmem_closure
{
86 const struct dom_sid
*alias
;
87 struct dom_sid
**sids
;
95 * High level functions
96 * better to use them than the lower ones.
98 * we are checking if the group is in the mapping file
99 * and if the group is an existing unix group
103 /* get a domain group from it's SID */
105 bool get_domain_group_from_sid(struct dom_sid sid
, GROUP_MAP
*map
)
110 if(!init_group_mapping()) {
111 DEBUG(0,("failed to initialize group mapping\n"));
115 DEBUG(10, ("get_domain_group_from_sid\n"));
117 /* if the group is NOT in the database, it CAN NOT be a domain group */
120 ret
= pdb_getgrsid(map
, sid
);
123 /* special case check for rid 513 */
128 sid_peek_rid( &sid
, &rid
);
130 if ( rid
== DOMAIN_RID_USERS
) {
131 fstrcpy( map
->nt_name
, "None" );
132 fstrcpy( map
->comment
, "Ordinary Users" );
133 sid_copy( &map
->sid
, &sid
);
134 map
->sid_name_use
= SID_NAME_DOM_GRP
;
135 map
->gid
= (gid_t
)-1;
141 DEBUG(10, ("get_domain_group_from_sid: SID found in the TDB\n"));
143 /* if it's not a domain group, continue */
144 if (map
->sid_name_use
!=SID_NAME_DOM_GRP
) {
148 DEBUG(10, ("get_domain_group_from_sid: SID is a domain group\n"));
154 DEBUG(10, ("get_domain_group_from_sid: SID is mapped to gid:%lu\n",(unsigned long)map
->gid
));
156 grp
= getgrgid(map
->gid
);
158 DEBUG(10, ("get_domain_group_from_sid: gid DOESN'T exist in UNIX security\n"));
162 DEBUG(10, ("get_domain_group_from_sid: gid exists in UNIX security\n"));
167 /****************************************************************************
168 Create a UNIX group on demand.
169 ****************************************************************************/
171 int smb_create_group(const char *unix_group
, gid_t
*new_gid
)
173 char *add_script
= NULL
;
179 /* defer to scripts */
181 if ( *lp_addgroup_script() ) {
182 TALLOC_CTX
*ctx
= talloc_tos();
184 add_script
= talloc_strdup(ctx
,
185 lp_addgroup_script());
189 add_script
= talloc_string_sub(ctx
,
190 add_script
, "%g", unix_group
);
195 ret
= smbrun(add_script
, &fd
);
196 DEBUG(ret
? 0 : 3,("smb_create_group: Running the command `%s' gave %d\n",add_script
,ret
));
198 smb_nscd_flush_group_cache();
207 if (read(fd
, output
, sizeof(output
)) > 0) {
208 *new_gid
= (gid_t
)strtoul(output
, NULL
, 10);
217 struct group
*grp
= getgrnam(unix_group
);
220 *new_gid
= grp
->gr_gid
;
226 /****************************************************************************
227 Delete a UNIX group on demand.
228 ****************************************************************************/
230 int smb_delete_group(const char *unix_group
)
232 char *del_script
= NULL
;
235 /* defer to scripts */
237 if ( *lp_delgroup_script() ) {
238 TALLOC_CTX
*ctx
= talloc_tos();
240 del_script
= talloc_strdup(ctx
,
241 lp_delgroup_script());
245 del_script
= talloc_string_sub(ctx
,
246 del_script
, "%g", unix_group
);
250 ret
= smbrun(del_script
,NULL
);
251 DEBUG(ret
? 0 : 3,("smb_delete_group: Running the command `%s' gave %d\n",del_script
,ret
));
253 smb_nscd_flush_group_cache();
261 /****************************************************************************
262 Set a user's primary UNIX group.
263 ****************************************************************************/
265 int smb_set_primary_group(const char *unix_group
, const char* unix_user
)
267 char *add_script
= NULL
;
270 /* defer to scripts */
272 if ( *lp_setprimarygroup_script() ) {
273 TALLOC_CTX
*ctx
= talloc_tos();
275 add_script
= talloc_strdup(ctx
,
276 lp_setprimarygroup_script());
280 add_script
= talloc_all_string_sub(ctx
,
281 add_script
, "%g", unix_group
);
285 add_script
= talloc_string_sub(ctx
,
286 add_script
, "%u", unix_user
);
290 ret
= smbrun(add_script
,NULL
);
292 DEBUG(ret
? 0 : 3,("smb_set_primary_group: "
293 "Running the command `%s' gave %d\n",add_script
,ret
));
295 smb_nscd_flush_group_cache();
303 /****************************************************************************
304 Add a user to a UNIX group.
305 ****************************************************************************/
307 int smb_add_user_group(const char *unix_group
, const char *unix_user
)
309 char *add_script
= NULL
;
312 /* defer to scripts */
314 if ( *lp_addusertogroup_script() ) {
315 TALLOC_CTX
*ctx
= talloc_tos();
317 add_script
= talloc_strdup(ctx
,
318 lp_addusertogroup_script());
322 add_script
= talloc_string_sub(ctx
,
323 add_script
, "%g", unix_group
);
327 add_script
= talloc_string_sub(ctx
,
328 add_script
, "%u", unix_user
);
332 ret
= smbrun(add_script
,NULL
);
333 DEBUG(ret
? 0 : 3,("smb_add_user_group: Running the command `%s' gave %d\n",add_script
,ret
));
335 smb_nscd_flush_group_cache();
343 /****************************************************************************
344 Delete a user from a UNIX group
345 ****************************************************************************/
347 int smb_delete_user_group(const char *unix_group
, const char *unix_user
)
349 char *del_script
= NULL
;
352 /* defer to scripts */
354 if ( *lp_deluserfromgroup_script() ) {
355 TALLOC_CTX
*ctx
= talloc_tos();
357 del_script
= talloc_strdup(ctx
,
358 lp_deluserfromgroup_script());
362 del_script
= talloc_string_sub(ctx
,
363 del_script
, "%g", unix_group
);
367 del_script
= talloc_string_sub(ctx
,
368 del_script
, "%u", unix_user
);
372 ret
= smbrun(del_script
,NULL
);
373 DEBUG(ret
? 0 : 3,("smb_delete_user_group: Running the command `%s' gave %d\n",del_script
,ret
));
375 smb_nscd_flush_group_cache();
384 NTSTATUS
pdb_default_getgrsid(struct pdb_methods
*methods
, GROUP_MAP
*map
,
387 if (!init_group_mapping()) {
388 DEBUG(0,("failed to initialize group mapping\n"));
389 return NT_STATUS_UNSUCCESSFUL
;
391 return backend
->get_group_map_from_sid(sid
, map
) ?
392 NT_STATUS_OK
: NT_STATUS_UNSUCCESSFUL
;
395 NTSTATUS
pdb_default_getgrgid(struct pdb_methods
*methods
, GROUP_MAP
*map
,
398 if (!init_group_mapping()) {
399 DEBUG(0,("failed to initialize group mapping\n"));
400 return NT_STATUS_UNSUCCESSFUL
;
402 return backend
->get_group_map_from_gid(gid
, map
) ?
403 NT_STATUS_OK
: NT_STATUS_UNSUCCESSFUL
;
406 NTSTATUS
pdb_default_getgrnam(struct pdb_methods
*methods
, GROUP_MAP
*map
,
409 if (!init_group_mapping()) {
410 DEBUG(0,("failed to initialize group mapping\n"));
411 return NT_STATUS_UNSUCCESSFUL
;
413 return backend
->get_group_map_from_ntname(name
, map
) ?
414 NT_STATUS_OK
: NT_STATUS_UNSUCCESSFUL
;
417 NTSTATUS
pdb_default_add_group_mapping_entry(struct pdb_methods
*methods
,
420 if (!init_group_mapping()) {
421 DEBUG(0,("failed to initialize group mapping\n"));
422 return NT_STATUS_UNSUCCESSFUL
;
424 return backend
->add_mapping_entry(map
, TDB_INSERT
) ?
425 NT_STATUS_OK
: NT_STATUS_UNSUCCESSFUL
;
428 NTSTATUS
pdb_default_update_group_mapping_entry(struct pdb_methods
*methods
,
431 if (!init_group_mapping()) {
432 DEBUG(0,("failed to initialize group mapping\n"));
433 return NT_STATUS_UNSUCCESSFUL
;
435 return backend
->add_mapping_entry(map
, TDB_REPLACE
) ?
436 NT_STATUS_OK
: NT_STATUS_UNSUCCESSFUL
;
439 NTSTATUS
pdb_default_delete_group_mapping_entry(struct pdb_methods
*methods
,
442 if (!init_group_mapping()) {
443 DEBUG(0,("failed to initialize group mapping\n"));
444 return NT_STATUS_UNSUCCESSFUL
;
446 return backend
->group_map_remove(&sid
) ?
447 NT_STATUS_OK
: NT_STATUS_UNSUCCESSFUL
;
450 NTSTATUS
pdb_default_enum_group_mapping(struct pdb_methods
*methods
,
451 const struct dom_sid
*sid
, enum lsa_SidType sid_name_use
,
452 GROUP_MAP
**pp_rmap
, size_t *p_num_entries
,
455 if (!init_group_mapping()) {
456 DEBUG(0,("failed to initialize group mapping\n"));
457 return NT_STATUS_UNSUCCESSFUL
;
459 return backend
->enum_group_mapping(sid
, sid_name_use
, pp_rmap
, p_num_entries
, unix_only
) ?
460 NT_STATUS_OK
: NT_STATUS_UNSUCCESSFUL
;
463 NTSTATUS
pdb_default_create_alias(struct pdb_methods
*methods
,
464 const char *name
, uint32
*rid
)
467 enum lsa_SidType type
;
475 DEBUG(10, ("Trying to create alias %s\n", name
));
477 mem_ctx
= talloc_new(NULL
);
478 if (mem_ctx
== NULL
) {
479 return NT_STATUS_NO_MEMORY
;
482 exists
= lookup_name(mem_ctx
, name
, LOOKUP_NAME_LOCAL
,
483 NULL
, NULL
, &sid
, &type
);
484 TALLOC_FREE(mem_ctx
);
487 return NT_STATUS_ALIAS_EXISTS
;
490 if (!pdb_new_rid(&new_rid
)) {
491 DEBUG(0, ("Could not allocate a RID.\n"));
492 return NT_STATUS_ACCESS_DENIED
;
495 sid_compose(&sid
, get_global_sam_sid(), new_rid
);
497 if (!winbind_allocate_gid(&gid
)) {
498 DEBUG(3, ("Could not get a gid out of winbind - "
499 "wasted a rid :-(\n"));
500 return NT_STATUS_ACCESS_DENIED
;
503 DEBUG(10, ("Creating alias %s with gid %u and rid %u\n",
504 name
, (unsigned int)gid
, (unsigned int)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
,
526 const struct dom_sid
*sid
)
528 return pdb_delete_group_mapping_entry(*sid
);
531 NTSTATUS
pdb_default_get_aliasinfo(struct pdb_methods
*methods
,
532 const struct dom_sid
*sid
,
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
,
555 const struct dom_sid
*sid
,
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 struct dom_sid
*alias
, const struct 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 struct dom_sid
*alias
, const struct 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 struct dom_sid
*alias
, TALLOC_CTX
*mem_ctx
,
591 struct 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 struct dom_sid
*domain_sid
,
604 const struct dom_sid
*members
,
606 uint32
**pp_alias_rids
,
607 size_t *p_num_alias_rids
)
609 struct dom_sid
*alias_sids
;
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 struct 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 struct 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
)));