2 * idmap_rid: static map between Active Directory/NT RIDs and RFC 2307 accounts
3 * Copyright (C) Guenther Deschner, 2004
4 * Copyright (C) Sumit Bose, 2004
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
25 #define DBGC_CLASS DBGC_IDMAP
27 struct idmap_rid_context {
28 const char *domain_name;
32 /******************************************************************************
33 compat params can't be used because of the completely different way
34 we support multiple domains in the new idmap
35 *****************************************************************************/
37 static NTSTATUS idmap_rid_initialize(struct idmap_domain *dom,
41 struct idmap_rid_context *ctx;
42 char *config_option = NULL;
44 ctx = TALLOC_ZERO_P(dom, struct idmap_rid_context);
46 DEBUG(0, ("Out of memory!\n"));
47 return NT_STATUS_NO_MEMORY;
50 config_option = talloc_asprintf(ctx, "idmap config %s", dom->name);
51 if ( ! config_option) {
52 DEBUG(0, ("Out of memory!\n"));
53 ret = NT_STATUS_NO_MEMORY;
57 ctx->base_rid = lp_parm_int(-1, config_option, "base_rid", 0);
58 ctx->domain_name = talloc_strdup( ctx, dom->name );
60 dom->private_data = ctx;
62 talloc_free(config_option);
70 static NTSTATUS idmap_rid_id_to_sid(struct idmap_domain *dom, struct id_map *map)
72 struct winbindd_domain *domain;
73 struct idmap_rid_context *ctx;
75 ctx = talloc_get_type(dom->private_data, struct idmap_rid_context);
77 /* apply filters before checking */
78 if (!idmap_unix_id_is_in_range(map->xid.id, dom)) {
79 DEBUG(5, ("Requested id (%u) out of range (%u - %u). Filtered!\n",
80 map->xid.id, dom->low_id, dom->high_id));
81 return NT_STATUS_NONE_MAPPED;
84 domain = find_domain_from_name_noinit(dom->name);
85 if (domain == NULL ) {
86 return NT_STATUS_NO_SUCH_DOMAIN;
89 sid_compose(map->sid, &domain->sid, map->xid.id - dom->low_id + ctx->base_rid);
91 /* We **really** should have some way of validating
92 the SID exists and is the correct type here. But
93 that is a deficiency in the idmap_rid design. */
95 map->status = ID_MAPPED;
100 /**********************************
101 Single sid to id lookup function.
102 **********************************/
104 static NTSTATUS idmap_rid_sid_to_id(struct idmap_domain *dom, struct id_map *map)
107 struct idmap_rid_context *ctx;
109 ctx = talloc_get_type(dom->private_data, struct idmap_rid_context);
111 sid_peek_rid(map->sid, &rid);
112 map->xid.id = rid - ctx->base_rid + dom->low_id;
114 /* apply filters before returning result */
116 if (!idmap_unix_id_is_in_range(map->xid.id, dom)) {
117 DEBUG(5, ("Requested id (%u) out of range (%u - %u). Filtered!\n",
118 map->xid.id, dom->low_id, dom->high_id));
119 map->status = ID_UNMAPPED;
120 return NT_STATUS_NONE_MAPPED;
123 /* We **really** should have some way of validating
124 the SID exists and is the correct type here. But
125 that is a deficiency in the idmap_rid design. */
127 map->status = ID_MAPPED;
132 /**********************************
133 lookup a set of unix ids.
134 **********************************/
136 static NTSTATUS idmap_rid_unixids_to_sids(struct idmap_domain *dom, struct id_map **ids)
141 /* initialize the status to avoid suprise */
142 for (i = 0; ids[i]; i++) {
143 ids[i]->status = ID_UNKNOWN;
146 for (i = 0; ids[i]; i++) {
148 ret = idmap_rid_id_to_sid(dom, ids[i]);
150 if (( ! NT_STATUS_IS_OK(ret)) &&
151 ( ! NT_STATUS_EQUAL(ret, NT_STATUS_NONE_MAPPED))) {
152 /* some fatal error occurred, log it */
153 DEBUG(3, ("Unexpected error resolving an ID (%d)\n", ids[i]->xid.id));
160 /**********************************
161 lookup a set of sids.
162 **********************************/
164 static NTSTATUS idmap_rid_sids_to_unixids(struct idmap_domain *dom, struct id_map **ids)
169 /* initialize the status to avoid suprise */
170 for (i = 0; ids[i]; i++) {
171 ids[i]->status = ID_UNKNOWN;
174 for (i = 0; ids[i]; i++) {
176 ret = idmap_rid_sid_to_id(dom, ids[i]);
178 if (( ! NT_STATUS_IS_OK(ret)) &&
179 ( ! NT_STATUS_EQUAL(ret, NT_STATUS_NONE_MAPPED))) {
180 /* some fatal error occurred, log it */
181 DEBUG(3, ("Unexpected error resolving a SID (%s)\n",
182 sid_string_dbg(ids[i]->sid)));
189 static NTSTATUS idmap_rid_close(struct idmap_domain *dom)
191 if (dom->private_data) {
192 TALLOC_FREE(dom->private_data);
197 static struct idmap_methods rid_methods = {
198 .init = idmap_rid_initialize,
199 .unixids_to_sids = idmap_rid_unixids_to_sids,
200 .sids_to_unixids = idmap_rid_sids_to_unixids,
201 .close_fn = idmap_rid_close
204 NTSTATUS idmap_rid_init(void)
206 return smb_register_idmap(SMB_IDMAP_INTERFACE_VERSION, "rid", &rid_methods);