1 /*
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.
8  *
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.
13  *
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.
18  *
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/>.
21  */
22 
23 #define DATABASE_VERSION_V1 1 /* native byte format. */
24 #define DATABASE_VERSION_V2 2 /* le format. */
25 
26 #define GROUP_PREFIX "UNIXGROUP/"
27 #define GROUP_PREFIX_LEN 10
28 
29 /* Alias memberships are stored reverse, as memberships. The performance
30  * critical operation is to determine the aliases a SID is member of, not
31  * listing alias members. So we store a list of alias SIDs a SID is member of
32  * hanging of the member as key.
33  */
34 #define MEMBEROF_PREFIX "MEMBEROF/"
35 #define MEMBEROF_PREFIX_LEN 9
36 
37 /*
38   groupdb mapping backend abstraction
39  */
40 struct mapping_backend {
41 	bool (*init_group_mapping)(void);
42 	bool (*add_mapping_entry)(GROUP_MAP *map, int flag);
43 	bool (*get_group_map_from_sid)(struct dom_sid sid, GROUP_MAP *map);
44 	bool (*get_group_map_from_gid)(gid_t gid, GROUP_MAP *map);
45 	bool (*get_group_map_from_ntname)(const char *name, GROUP_MAP *map);
46 	bool (*group_map_remove)(const struct dom_sid *sid);
47 	bool (*enum_group_mapping)(const struct dom_sid *domsid, enum lsa_SidType sid_name_use,
48 				   GROUP_MAP ***pp_rmap,
49 				   size_t *p_num_entries, bool unix_only);
50 	NTSTATUS (*one_alias_membership)(const struct dom_sid *member,
51 					 struct dom_sid **sids, size_t *num);
52 	NTSTATUS (*add_aliasmem)(const struct dom_sid *alias, const struct dom_sid *member);
53 	NTSTATUS (*del_aliasmem)(const struct dom_sid *alias, const struct dom_sid *member);
54 	NTSTATUS (*enum_aliasmem)(const struct dom_sid *alias, TALLOC_CTX *mem_ctx,
55 				  struct dom_sid **sids, size_t *num);
56 };
57