2 Unix SMB/CIFS implementation.
4 Copyright (C) Volker Lendecke 2011
5 Copyright (C) Michael Adam 2012
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
23 #include "../libcli/security/security.h"
24 #include "idmap_cache.h"
25 #include "librpc/gen_ndr/ndr_winbind_c.h"
26 #include "librpc/gen_ndr/ndr_netlogon.h"
29 struct wb_sids2xids_state {
30 struct tevent_context *ev;
35 struct id_map *cached;
37 struct dom_sid *non_cached;
38 uint32_t num_non_cached;
41 * Domain array to use for the idmap call. The output from
42 * lookupsids cannot be used directly since for migrated
43 * objects the returned domain SID can be different that the
44 * original one. The new domain SID cannot be combined with
45 * the RID from the previous domain.
47 * The proper way would be asking for the correct RID in the
48 * new domain, but this approach avoids id mappings for
51 struct lsa_RefDomainList idmap_doms;
54 struct wbint_TransIDArray *dom_ids;
55 struct lsa_RefDomainList idmap_dom;
58 struct wbint_TransIDArray ids;
62 static bool wb_sids2xids_in_cache(struct dom_sid *sid, struct id_map *map);
63 static void wb_sids2xids_lookupsids_done(struct tevent_req *subreq);
64 static void wb_sids2xids_done(struct tevent_req *subreq);
65 static void wb_sids2xids_gotdc(struct tevent_req *subreq);
67 struct tevent_req *wb_sids2xids_send(TALLOC_CTX *mem_ctx,
68 struct tevent_context *ev,
69 const struct dom_sid *sids,
70 const uint32_t num_sids)
72 struct tevent_req *req, *subreq;
73 struct wb_sids2xids_state *state;
76 req = tevent_req_create(mem_ctx, &state,
77 struct wb_sids2xids_state);
84 state->num_sids = num_sids;
86 state->sids = talloc_zero_array(state, struct dom_sid, num_sids);
87 if (tevent_req_nomem(state->sids, req)) {
88 return tevent_req_post(req, ev);
91 for (i = 0; i < num_sids; i++) {
92 sid_copy(&state->sids[i], &sids[i]);
95 state->cached = talloc_zero_array(state, struct id_map, num_sids);
96 if (tevent_req_nomem(state->cached, req)) {
97 return tevent_req_post(req, ev);
100 state->non_cached = talloc_array(state, struct dom_sid, num_sids);
101 if (tevent_req_nomem(state->non_cached, req)) {
102 return tevent_req_post(req, ev);
106 * Extract those sids that can not be resolved from cache
107 * into a separate list to be handed to id mapping, keeping
110 for (i=0; i<state->num_sids; i++) {
112 DEBUG(10, ("SID %d: %s\n", (int)i,
113 sid_string_dbg(&state->sids[i])));
115 if (wb_sids2xids_in_cache(&state->sids[i], &state->cached[i])) {
118 sid_copy(&state->non_cached[state->num_non_cached],
120 state->num_non_cached += 1;
123 if (state->num_non_cached == 0) {
124 tevent_req_done(req);
125 return tevent_req_post(req, ev);
128 subreq = wb_lookupsids_send(state, ev, state->non_cached,
129 state->num_non_cached);
130 if (tevent_req_nomem(subreq, req)) {
131 return tevent_req_post(req, ev);
133 tevent_req_set_callback(subreq, wb_sids2xids_lookupsids_done, req);
137 static bool wb_sids2xids_in_cache(struct dom_sid *sid, struct id_map *map)
142 if (!winbindd_use_idmap_cache()) {
145 if (idmap_cache_find_sid2unixid(sid, &id, &expired)) {
146 if (expired && is_domain_online(find_our_domain())) {
151 map->status = ID_MAPPED;
157 static enum id_type lsa_SidType_to_id_type(const enum lsa_SidType sid_type);
158 static struct wbint_TransIDArray *wb_sids2xids_extract_for_domain_index(
159 TALLOC_CTX *mem_ctx, const struct wbint_TransIDArray *src,
160 uint32_t domain_index);
162 static void wb_sids2xids_lookupsids_done(struct tevent_req *subreq)
164 struct tevent_req *req = tevent_req_callback_data(
165 subreq, struct tevent_req);
166 struct wb_sids2xids_state *state = tevent_req_data(
167 req, struct wb_sids2xids_state);
168 struct lsa_RefDomainList *domains = NULL;
169 struct lsa_TransNameArray *names = NULL;
170 struct winbindd_child *child;
174 status = wb_lookupsids_recv(subreq, state, &domains, &names);
176 if (tevent_req_nterror(req, status)) {
180 state->ids.num_ids = state->num_non_cached;
181 state->ids.ids = talloc_array(state, struct wbint_TransID,
182 state->num_non_cached);
183 if (tevent_req_nomem(state->ids.ids, req)) {
187 for (i=0; i<state->num_non_cached; i++) {
188 struct dom_sid dom_sid;
189 struct lsa_DomainInfo *info;
190 struct lsa_TranslatedName *n = &names->names[i];
191 struct wbint_TransID *t = &state->ids.ids[i];
194 sid_copy(&dom_sid, &state->non_cached[i]);
195 sid_split_rid(&dom_sid, &t->rid);
197 info = &domains->domains[n->sid_index];
198 t->type = lsa_SidType_to_id_type(n->sid_type);
200 domain_index = init_lsa_ref_domain_list(
201 state, &state->idmap_doms, info->name.string, &dom_sid);
202 if (domain_index == -1) {
206 t->domain_index = domain_index;
208 t->xid.id = UINT32_MAX;
209 t->xid.type = t->type;
213 TALLOC_FREE(domains);
215 child = idmap_child();
217 state->dom_ids = wb_sids2xids_extract_for_domain_index(
218 state, &state->ids, state->dom_index);
219 if (tevent_req_nomem(state->dom_ids, req)) {
223 state->idmap_dom = (struct lsa_RefDomainList) {
225 .domains = &state->idmap_doms.domains[state->dom_index],
229 subreq = dcerpc_wbint_Sids2UnixIDs_send(
230 state, state->ev, child->binding_handle, &state->idmap_dom,
232 if (tevent_req_nomem(subreq, req)) {
235 tevent_req_set_callback(subreq, wb_sids2xids_done, req);
238 static enum id_type lsa_SidType_to_id_type(const enum lsa_SidType sid_type)
243 case SID_NAME_COMPUTER:
247 case SID_NAME_DOM_GRP:
249 case SID_NAME_WKN_GRP:
253 type = ID_TYPE_NOT_SPECIFIED;
260 static void wb_sids2xids_done(struct tevent_req *subreq)
262 struct tevent_req *req = tevent_req_callback_data(
263 subreq, struct tevent_req);
264 struct wb_sids2xids_state *state = tevent_req_data(
265 req, struct wb_sids2xids_state);
266 NTSTATUS status, result;
267 struct winbindd_child *child;
269 struct wbint_TransIDArray *src, *dst;
272 status = dcerpc_wbint_Sids2UnixIDs_recv(subreq, state, &result);
275 if (tevent_req_nterror(req, status)) {
279 if (NT_STATUS_EQUAL(result, NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND) &&
280 !state->tried_dclookup) {
282 struct lsa_DomainInfo *d;
284 d = &state->idmap_doms.domains[state->dom_index];
286 subreq = wb_dsgetdcname_send(
287 state, state->ev, d->name.string, NULL, NULL,
289 if (tevent_req_nomem(subreq, req)) {
292 tevent_req_set_callback(subreq, wb_sids2xids_gotdc, req);
296 src = state->dom_ids;
300 if (any_nt_status_not_ok(status, result, &status)) {
301 DBG_DEBUG("status=%s, result=%s\n", nt_errstr(status),
305 * All we can do here is to report "not mapped"
307 for (i=0; i<src->num_ids; i++) {
308 src->ids[i].xid.type = ID_TYPE_NOT_SPECIFIED;
312 for (i=0; i<dst->num_ids; i++) {
313 if (dst->ids[i].domain_index == state->dom_index) {
314 dst->ids[i].type = src->ids[src_idx].type;
315 dst->ids[i].xid = src->ids[src_idx].xid;
320 TALLOC_FREE(state->dom_ids);
322 state->dom_index += 1;
323 state->tried_dclookup = false;
325 if (state->dom_index == state->idmap_doms.count) {
326 tevent_req_done(req);
330 child = idmap_child();
332 state->dom_ids = wb_sids2xids_extract_for_domain_index(
333 state, &state->ids, state->dom_index);
334 if (tevent_req_nomem(state->dom_ids, req)) {
338 state->idmap_dom = (struct lsa_RefDomainList) {
340 .domains = &state->idmap_doms.domains[state->dom_index],
344 subreq = dcerpc_wbint_Sids2UnixIDs_send(
345 state, state->ev, child->binding_handle, &state->idmap_dom,
347 if (tevent_req_nomem(subreq, req)) {
350 tevent_req_set_callback(subreq, wb_sids2xids_done, req);
353 static void wb_sids2xids_gotdc(struct tevent_req *subreq)
355 struct tevent_req *req = tevent_req_callback_data(
356 subreq, struct tevent_req);
357 struct wb_sids2xids_state *state = tevent_req_data(
358 req, struct wb_sids2xids_state);
359 struct winbindd_child *child = idmap_child();
360 struct netr_DsRGetDCNameInfo *dcinfo;
363 status = wb_dsgetdcname_recv(subreq, state, &dcinfo);
365 if (tevent_req_nterror(req, status)) {
369 state->tried_dclookup = true;
372 struct lsa_DomainInfo *d =
373 &state->idmap_doms.domains[state->dom_index];
374 const char *dom_name = d->name.string;
376 status = wb_dsgetdcname_gencache_set(dom_name, dcinfo);
377 if (tevent_req_nterror(req, status)) {
382 subreq = dcerpc_wbint_Sids2UnixIDs_send(
383 state, state->ev, child->binding_handle, &state->idmap_dom,
385 if (tevent_req_nomem(subreq, req)) {
388 tevent_req_set_callback(subreq, wb_sids2xids_done, req);
391 NTSTATUS wb_sids2xids_recv(struct tevent_req *req,
392 struct unixid xids[], uint32_t num_xids)
394 struct wb_sids2xids_state *state = tevent_req_data(
395 req, struct wb_sids2xids_state);
397 uint32_t i, num_non_cached;
399 if (tevent_req_is_nterror(req, &status)) {
400 DEBUG(5, ("wb_sids_to_xids failed: %s\n", nt_errstr(status)));
404 if (num_xids != state->num_sids) {
405 DEBUG(1, ("%s: Have %u xids, caller wants %u\n", __func__,
406 (unsigned)state->num_sids, num_xids));
407 return NT_STATUS_INTERNAL_ERROR;
412 for (i=0; i<state->num_sids; i++) {
417 if (state->cached[i].sid != NULL) {
418 xid = state->cached[i].xid;
420 xid = state->ids.ids[num_non_cached].xid;
422 idmap_cache_set_sid2unixid(
423 &state->non_cached[num_non_cached],
435 static struct wbint_TransIDArray *wb_sids2xids_extract_for_domain_index(
436 TALLOC_CTX *mem_ctx, const struct wbint_TransIDArray *src,
437 uint32_t domain_index)
439 struct wbint_TransIDArray *ret;
442 ret = talloc_zero(mem_ctx, struct wbint_TransIDArray);
446 ret->ids = talloc_array(ret, struct wbint_TransID, src->num_ids);
447 if (ret->ids == NULL) {
452 for (i=0; i<src->num_ids; i++) {
453 if (src->ids[i].domain_index == domain_index) {
454 ret->ids[ret->num_ids] = src->ids[i];
455 ret->ids[ret->num_ids].domain_index = 0;