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 2 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, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 #define DBGC_CLASS DBGC_IDMAP
28 struct idmap_rid_context {
29 const char *domain_name;
35 /******************************************************************************
36 compat params can't be used because of the completely different way
37 we support multiple domains in the new idmap
38 *****************************************************************************/
40 static NTSTATUS idmap_rid_initialize(struct idmap_domain *dom, const char *compat_params)
43 struct idmap_rid_context *ctx;
44 char *config_option = NULL;
47 if ( (ctx = talloc_zero(dom, struct idmap_rid_context)) == NULL ) {
48 DEBUG(0, ("Out of memory!\n"));
49 return NT_STATUS_NO_MEMORY;
52 config_option = talloc_asprintf(ctx, "idmap config %s", dom->name);
53 if ( ! config_option) {
54 DEBUG(0, ("Out of memory!\n"));
55 ret = NT_STATUS_NO_MEMORY;
59 range = lp_parm_const_string(-1, config_option, "range", NULL);
61 (sscanf(range, "%u - %u", &ctx->low_id, &ctx->high_id) != 2) ||
62 (ctx->low_id > ctx->high_id))
68 if ( !ctx->low_id || !ctx->high_id ) {
69 DEBUG(1, ("ERROR: Invalid configuration, ID range missing\n"));
70 ret = NT_STATUS_UNSUCCESSFUL;
74 ctx->base_rid = lp_parm_int(-1, config_option, "base_rid", 0);
75 ctx->domain_name = talloc_strdup( ctx, dom->name );
77 dom->private_data = ctx;
79 talloc_free(config_option);
87 static NTSTATUS idmap_rid_id_to_sid(TALLOC_CTX *memctx, struct idmap_rid_context *ctx, struct id_map *map)
89 const char *domname, *name;
90 enum lsa_SidType sid_type;
92 struct winbindd_domain *domain;
94 /* apply filters before checking */
95 if ((map->xid.id < ctx->low_id) || (map->xid.id > ctx->high_id)) {
96 DEBUG(5, ("Requested id (%u) out of range (%u - %u). Filtered!\n",
97 map->xid.id, ctx->low_id, ctx->high_id));
98 return NT_STATUS_NONE_MAPPED;
101 if ( (domain = find_domain_from_name_noinit(ctx->domain_name)) == NULL ) {
102 return NT_STATUS_NO_SUCH_DOMAIN;
105 sid_compose(map->sid, &domain->sid, map->xid.id - ctx->low_id + ctx->base_rid);
107 /* by default calls to winbindd are disabled
108 the following call will not recurse so this is safe */
110 ret = winbind_lookup_sid(memctx, map->sid, &domname, &name, &sid_type);
116 if (map->xid.type != ID_TYPE_UID) {
118 map->status = ID_UNMAPPED;
119 DEBUG(5, ("Resulting SID is of wrong ID type\n"));
120 return NT_STATUS_NONE_MAPPED;
123 case SID_NAME_DOM_GRP:
125 case SID_NAME_WKN_GRP:
126 if (map->xid.type != ID_TYPE_GID) {
128 map->status = ID_UNMAPPED;
129 DEBUG(5, ("Resulting SID is of wrong ID type\n"));
130 return NT_STATUS_NONE_MAPPED;
135 map->status = ID_UNKNOWN;
136 DEBUG(10, ("SID %s is UNKNOWN, skip mapping\n", sid_string_static(map->sid)));
137 return NT_STATUS_NONE_MAPPED;
140 /* TODO: how do we known if the lookup was negative
141 * or something just failed? */
142 map->status = ID_UNMAPPED;
143 DEBUG(2, ("Failed: to resolve SID\n"));
144 return NT_STATUS_UNSUCCESSFUL;
147 map->status = ID_MAPPED;
152 /**********************************
153 Single sid to id lookup function.
154 **********************************/
156 static NTSTATUS idmap_rid_sid_to_id(TALLOC_CTX *memctx, struct idmap_rid_context *ctx, struct id_map *map)
158 const char *domname, *name;
159 enum lsa_SidType sid_type;
163 sid_peek_rid(map->sid, &rid);
164 map->xid.id = rid - ctx->base_rid + ctx->low_id;
166 /* by default calls to winbindd are disabled
167 the following call will not recurse so this is safe */
169 /* check if this is a valid SID and set the type */
170 ret = winbind_lookup_sid(memctx, map->sid, &domname, &name, &sid_type);
176 map->xid.type = ID_TYPE_UID;
178 case SID_NAME_DOM_GRP:
180 case SID_NAME_WKN_GRP:
181 map->xid.type = ID_TYPE_GID;
184 /* invalid sid, let's just leave it unmapped */
185 DEBUG(10, ("SID %s is UNKNOWN, skip mapping\n", sid_string_static(map->sid)));
186 map->status = ID_UNKNOWN;
187 return NT_STATUS_NONE_MAPPED;
190 /* TODO: how do we known if the lookup was negative
191 * or something just failed? */
192 map->status = ID_UNMAPPED;
193 DEBUG(2, ("Failed: to resolve SID\n"));
194 return NT_STATUS_UNSUCCESSFUL;
197 /* apply filters before returning result */
198 if ((map->xid.id < ctx->low_id) || (map->xid.id > ctx->high_id)) {
199 DEBUG(5, ("Requested id (%u) out of range (%u - %u). Filtered!\n",
200 map->xid.id, ctx->low_id, ctx->high_id));
201 map->status = ID_UNMAPPED;
202 return NT_STATUS_NONE_MAPPED;
205 map->status = ID_MAPPED;
210 /**********************************
211 lookup a set of unix ids.
212 **********************************/
214 static NTSTATUS idmap_rid_unixids_to_sids(struct idmap_domain *dom, struct id_map **ids)
216 struct idmap_rid_context *ridctx;
221 ridctx = talloc_get_type(dom->private_data, struct idmap_rid_context);
223 ctx = talloc_new(dom);
225 DEBUG(0, ("Out of memory!\n"));
226 return NT_STATUS_NO_MEMORY;
229 for (i = 0; ids[i]; i++) {
231 ret = idmap_rid_id_to_sid(ctx, ridctx, ids[i]);
233 if (( ! NT_STATUS_IS_OK(ret)) &&
234 ( ! NT_STATUS_EQUAL(ret, NT_STATUS_NONE_MAPPED))) {
235 /* some fatal error occurred, log it */
236 DEBUG(3, ("Unexpected error resolving an ID (%d)\n", ids[i]->xid.id));
244 /**********************************
245 lookup a set of sids.
246 **********************************/
248 static NTSTATUS idmap_rid_sids_to_unixids(struct idmap_domain *dom, struct id_map **ids)
250 struct idmap_rid_context *ridctx;
255 ridctx = talloc_get_type(dom->private_data, struct idmap_rid_context);
257 ctx = talloc_new(dom);
259 DEBUG(0, ("Out of memory!\n"));
260 return NT_STATUS_NO_MEMORY;
263 for (i = 0; ids[i]; i++) {
265 ret = idmap_rid_sid_to_id(ctx, ridctx, ids[i]);
267 if (( ! NT_STATUS_IS_OK(ret)) &&
268 ( ! NT_STATUS_EQUAL(ret, NT_STATUS_NONE_MAPPED))) {
269 /* some fatal error occurred, log it */
270 DEBUG(3, ("Unexpected error resolving a SID (%s)\n",
271 sid_string_static(ids[i]->sid)));
279 static NTSTATUS idmap_rid_close(struct idmap_domain *dom)
281 if (dom->private_data) {
282 TALLOC_FREE(dom->private_data);
287 static struct idmap_methods rid_methods = {
288 .init = idmap_rid_initialize,
289 .unixids_to_sids = idmap_rid_unixids_to_sids,
290 .sids_to_unixids = idmap_rid_sids_to_unixids,
291 .close_fn = idmap_rid_close
294 NTSTATUS idmap_rid_init(void)
296 return smb_register_idmap(SMB_IDMAP_INTERFACE_VERSION, "rid", &rid_methods);