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winbind: Avoid a few talloc_tos() in winbindd_cache.c
[Samba.git] / source3 / winbindd / winbindd_msrpc.c
blob77e5ffc575d369fc2d6c24580d13aadeed47fed8
1 /*
2 Unix SMB/CIFS implementation.
3
4 Winbind rpc backend functions
5
6 Copyright (C) Tim Potter 2000-2001,2003
7 Copyright (C) Andrew Tridgell 2001
8 Copyright (C) Volker Lendecke 2005
9 Copyright (C) Guenther Deschner 2008 (pidl conversion)
10
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 3 of the License, or
14 (at your option) any later version.
15
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
20
21 You should have received a copy of the GNU General Public License
22 along with this program. If not, see <http://www.gnu.org/licenses/>.
23 */
24
25 #include "includes.h"
26 #include "winbindd.h"
27 #include "winbindd_rpc.h"
28
29 #include "../librpc/gen_ndr/ndr_samr_c.h"
30 #include "rpc_client/cli_pipe.h"
31 #include "rpc_client/cli_samr.h"
32 #include "rpc_client/cli_lsarpc.h"
33 #include "../libcli/security/security.h"
34
35 #undef DBGC_CLASS
36 #define DBGC_CLASS DBGC_WINBIND
37
38 static NTSTATUS winbindd_lookup_names(TALLOC_CTX *mem_ctx,
39 struct winbindd_domain *domain,
40 uint32_t num_names,
41 const char **names,
42 const char ***domains,
43 struct dom_sid **sids,
44 enum lsa_SidType **types);
45
46 /* Query display info for a domain. This returns enough information plus a
47 bit extra to give an overview of domain users for the User Manager
48 application. */
49 static NTSTATUS msrpc_query_user_list(struct winbindd_domain *domain,
50 TALLOC_CTX *mem_ctx,
51 uint32_t *pnum_info,
52 struct wbint_userinfo **pinfo)
53 {
54 struct rpc_pipe_client *samr_pipe = NULL;
55 struct policy_handle dom_pol;
56 struct wbint_userinfo *info = NULL;
57 uint32_t num_info = 0;
58 TALLOC_CTX *tmp_ctx;
59 NTSTATUS status;
60
61 DEBUG(3, ("msrpc_query_user_list\n"));
62
63 if (pnum_info) {
64 *pnum_info = 0;
65 }
66
67 tmp_ctx = talloc_stackframe();
68 if (tmp_ctx == NULL) {
69 return NT_STATUS_NO_MEMORY;
70 }
71
72 if ( !winbindd_can_contact_domain( domain ) ) {
73 DEBUG(10,("query_user_list: No incoming trust for domain %s\n",
74 domain->name));
75 status = NT_STATUS_OK;
76 goto done;
77 }
78
79 status = cm_connect_sam(domain, tmp_ctx, false, &samr_pipe, &dom_pol);
80 if (!NT_STATUS_IS_OK(status)) {
81 goto done;
82 }
83
84 status = rpc_query_user_list(tmp_ctx,
85 samr_pipe,
86 &dom_pol,
87 &domain->sid,
88 &num_info,
89 &info);
90 if (!NT_STATUS_IS_OK(status)) {
91 goto done;
92 }
93
94 if (pnum_info) {
95 *pnum_info = num_info;
96 }
97
98 if (pinfo) {
99 *pinfo = talloc_move(mem_ctx, &info);
100 }
101
102 done:
103 TALLOC_FREE(tmp_ctx);
104 return status;
105 }
106
107 /* list all domain groups */
108 static NTSTATUS msrpc_enum_dom_groups(struct winbindd_domain *domain,
109 TALLOC_CTX *mem_ctx,
110 uint32_t *pnum_info,
111 struct wb_acct_info **pinfo)
112 {
113 struct rpc_pipe_client *samr_pipe;
114 struct policy_handle dom_pol;
115 struct wb_acct_info *info = NULL;
116 uint32_t num_info = 0;
117 TALLOC_CTX *tmp_ctx;
118 NTSTATUS status;
119
120 DEBUG(3,("msrpc_enum_dom_groups\n"));
121
122 if (pnum_info) {
123 *pnum_info = 0;
124 }
125
126 tmp_ctx = talloc_stackframe();
127 if (tmp_ctx == NULL) {
128 return NT_STATUS_NO_MEMORY;
129 }
130
131 if ( !winbindd_can_contact_domain( domain ) ) {
132 DEBUG(10,("enum_domain_groups: No incoming trust for domain %s\n",
133 domain->name));
134 status = NT_STATUS_OK;
135 goto done;
136 }
137
138 status = cm_connect_sam(domain, tmp_ctx, false, &samr_pipe, &dom_pol);
139 if (!NT_STATUS_IS_OK(status)) {
140 goto done;
141 }
142
143 status = rpc_enum_dom_groups(tmp_ctx,
144 samr_pipe,
145 &dom_pol,
146 &num_info,
147 &info);
148 if (!NT_STATUS_IS_OK(status)) {
149 goto done;
150 }
151
152 if (pnum_info) {
153 *pnum_info = num_info;
154 }
155
156 if (pinfo) {
157 *pinfo = talloc_move(mem_ctx, &info);
158 }
159
160 done:
161 TALLOC_FREE(tmp_ctx);
162 return status;
163 }
164
165 /* List all domain groups */
166
167 static NTSTATUS msrpc_enum_local_groups(struct winbindd_domain *domain,
168 TALLOC_CTX *mem_ctx,
169 uint32_t *pnum_info,
170 struct wb_acct_info **pinfo)
171 {
172 struct rpc_pipe_client *samr_pipe;
173 struct policy_handle dom_pol;
174 struct wb_acct_info *info = NULL;
175 uint32_t num_info = 0;
176 TALLOC_CTX *tmp_ctx;
177 NTSTATUS status;
178
179 DEBUG(3,("msrpc_enum_local_groups\n"));
180
181 if (pnum_info) {
182 *pnum_info = 0;
183 }
184
185 tmp_ctx = talloc_stackframe();
186 if (tmp_ctx == NULL) {
187 return NT_STATUS_NO_MEMORY;
188 }
189
190 if ( !winbindd_can_contact_domain( domain ) ) {
191 DEBUG(10,("enum_local_groups: No incoming trust for domain %s\n",
192 domain->name));
193 status = NT_STATUS_OK;
194 goto done;
195 }
196
197 status = cm_connect_sam(domain, tmp_ctx, false, &samr_pipe, &dom_pol);
198 if (!NT_STATUS_IS_OK(status)) {
199 goto done;
200 }
201
202 status = rpc_enum_local_groups(mem_ctx,
203 samr_pipe,
204 &dom_pol,
205 &num_info,
206 &info);
207 if (!NT_STATUS_IS_OK(status)) {
208 goto done;
209 }
210
211 if (pnum_info) {
212 *pnum_info = num_info;
213 }
214
215 if (pinfo) {
216 *pinfo = talloc_move(mem_ctx, &info);
217 }
218
219 done:
220 TALLOC_FREE(tmp_ctx);
221 return status;
222 }
223
224 /* convert a single name to a sid in a domain */
225 static NTSTATUS msrpc_name_to_sid(struct winbindd_domain *domain,
226 TALLOC_CTX *mem_ctx,
227 const char *domain_name,
228 const char *name,
229 uint32_t flags,
230 struct dom_sid *sid,
231 enum lsa_SidType *type)
232 {
233 NTSTATUS result;
234 struct dom_sid *sids = NULL;
235 enum lsa_SidType *types = NULL;
236 char *full_name = NULL;
237 const char *names[1];
238 NTSTATUS name_map_status = NT_STATUS_UNSUCCESSFUL;
239 char *mapped_name = NULL;
240
241 if (name == NULL || *name=='\0') {
242 full_name = talloc_asprintf(mem_ctx, "%s", domain_name);
243 } else if (domain_name == NULL || *domain_name == '\0') {
244 full_name = talloc_asprintf(mem_ctx, "%s", name);
245 } else {
246 full_name = talloc_asprintf(mem_ctx, "%s\\%s", domain_name, name);
247 }
248 if (!full_name) {
249 DEBUG(0, ("talloc_asprintf failed!\n"));
250 return NT_STATUS_NO_MEMORY;
251 }
252
253 DEBUG(3, ("msrpc_name_to_sid: name=%s\n", full_name));
254
255 name_map_status = normalize_name_unmap(mem_ctx, full_name,
256 &mapped_name);
257
258 /* Reset the full_name pointer if we mapped anything */
259
260 if (NT_STATUS_IS_OK(name_map_status) ||
261 NT_STATUS_EQUAL(name_map_status, NT_STATUS_FILE_RENAMED))
262 {
263 full_name = mapped_name;
264 }
265
266 DEBUG(3,("name_to_sid [rpc] %s for domain %s\n",
267 full_name?full_name:"", domain_name ));
268
269 names[0] = full_name;
270
271 result = winbindd_lookup_names(mem_ctx, domain, 1,
272 names, NULL,
273 &sids, &types);
274 if (!NT_STATUS_IS_OK(result))
275 return result;
276
277 /* Return rid and type if lookup successful */
278
279 sid_copy(sid, &sids[0]);
280 *type = types[0];
281
282 return NT_STATUS_OK;
283 }
284
285 /*
286 convert a domain SID to a user or group name
287 */
288 static NTSTATUS msrpc_sid_to_name(struct winbindd_domain *domain,
289 TALLOC_CTX *mem_ctx,
290 const struct dom_sid *sid,
291 char **domain_name,
292 char **name,
293 enum lsa_SidType *type)
294 {
295 char **domains;
296 char **names;
297 enum lsa_SidType *types = NULL;
298 NTSTATUS result;
299 NTSTATUS name_map_status = NT_STATUS_UNSUCCESSFUL;
300 char *mapped_name = NULL;
301
302 DEBUG(3, ("msrpc_sid_to_name: %s for domain %s\n", sid_string_dbg(sid),
303 domain->name ));
304
305 result = winbindd_lookup_sids(mem_ctx,
306 domain,
307 1,
308 sid,
309 &domains,
310 &names,
311 &types);
312 if (!NT_STATUS_IS_OK(result)) {
313 DEBUG(2,("msrpc_sid_to_name: failed to lookup sids: %s\n",
314 nt_errstr(result)));
315 return result;
316 }
317
318
319 *type = (enum lsa_SidType)types[0];
320 *domain_name = domains[0];
321 *name = names[0];
322
323 DEBUG(5,("Mapped sid to [%s]\\[%s]\n", domains[0], *name));
324
325 name_map_status = normalize_name_map(mem_ctx, domain, *name,
326 &mapped_name);
327 if (NT_STATUS_IS_OK(name_map_status) ||
328 NT_STATUS_EQUAL(name_map_status, NT_STATUS_FILE_RENAMED))
329 {
330 *name = mapped_name;
331 DEBUG(5,("returning mapped name -- %s\n", *name));
332 }
333
334 return NT_STATUS_OK;
335 }
336
337 static NTSTATUS msrpc_rids_to_names(struct winbindd_domain *domain,
338 TALLOC_CTX *mem_ctx,
339 const struct dom_sid *sid,
340 uint32 *rids,
341 size_t num_rids,
342 char **domain_name,
343 char ***names,
344 enum lsa_SidType **types)
345 {
346 char **domains;
347 NTSTATUS result;
348 struct dom_sid *sids;
349 size_t i;
350 char **ret_names;
351
352 DEBUG(3, ("msrpc_rids_to_names: domain %s\n", domain->name ));
353
354 if (num_rids) {
355 sids = talloc_array(mem_ctx, struct dom_sid, num_rids);
356 if (sids == NULL) {
357 return NT_STATUS_NO_MEMORY;
358 }
359 } else {
360 sids = NULL;
361 }
362
363 for (i=0; i<num_rids; i++) {
364 if (!sid_compose(&sids[i], sid, rids[i])) {
365 return NT_STATUS_INTERNAL_ERROR;
366 }
367 }
368
369 result = winbindd_lookup_sids(mem_ctx,
370 domain,
371 num_rids,
372 sids,
373 &domains,
374 names,
375 types);
376
377 if (!NT_STATUS_IS_OK(result) &&
378 !NT_STATUS_EQUAL(result, STATUS_SOME_UNMAPPED)) {
379 return result;
380 }
381
382 ret_names = *names;
383 for (i=0; i<num_rids; i++) {
384 NTSTATUS name_map_status = NT_STATUS_UNSUCCESSFUL;
385 char *mapped_name = NULL;
386
387 if ((*types)[i] != SID_NAME_UNKNOWN) {
388 name_map_status = normalize_name_map(mem_ctx,
389 domain,
390 ret_names[i],
391 &mapped_name);
392 if (NT_STATUS_IS_OK(name_map_status) ||
393 NT_STATUS_EQUAL(name_map_status, NT_STATUS_FILE_RENAMED))
394 {
395 ret_names[i] = mapped_name;
396 }
397
398 *domain_name = domains[i];
399 }
400 }
401
402 return result;
403 }
404
405 /* Lookup user information from a rid or username. */
406 static NTSTATUS msrpc_query_user(struct winbindd_domain *domain,
407 TALLOC_CTX *mem_ctx,
408 const struct dom_sid *user_sid,
409 struct wbint_userinfo *user_info)
410 {
411 struct rpc_pipe_client *samr_pipe;
412 struct policy_handle dom_pol;
413 struct netr_SamInfo3 *user;
414 TALLOC_CTX *tmp_ctx;
415 NTSTATUS status;
416
417 DEBUG(3,("msrpc_query_user sid=%s\n", sid_string_dbg(user_sid)));
418
419 tmp_ctx = talloc_stackframe();
420 if (tmp_ctx == NULL) {
421 return NT_STATUS_NO_MEMORY;
422 }
423
424 if (user_info) {
425 user_info->homedir = NULL;
426 user_info->shell = NULL;
427 user_info->primary_gid = (gid_t)-1;
428 }
429
430 /* try netsamlogon cache first */
431 user = netsamlogon_cache_get(tmp_ctx, user_sid);
432 if (user != NULL) {
433 DEBUG(5,("msrpc_query_user: Cache lookup succeeded for %s\n",
434 sid_string_dbg(user_sid)));
435
436 sid_compose(&user_info->user_sid, &domain->sid, user->base.rid);
437 sid_compose(&user_info->group_sid, &domain->sid,
438 user->base.primary_gid);
439
440 user_info->acct_name = talloc_strdup(user_info,
441 user->base.account_name.string);
442 user_info->full_name = talloc_strdup(user_info,
443 user->base.full_name.string);
444
445 if (user_info->full_name == NULL) {
446 /* this might fail so we dont check the return code */
447 wcache_query_user_fullname(domain,
448 mem_ctx,
449 user_sid,
450 &user_info->full_name);
451 }
452
453 status = NT_STATUS_OK;
454 goto done;
455 }
456
457 if ( !winbindd_can_contact_domain( domain ) ) {
458 DEBUG(10,("query_user: No incoming trust for domain %s\n",
459 domain->name));
460 /* Tell the cache manager not to remember this one */
461 status = NT_STATUS_SYNCHRONIZATION_REQUIRED;
462 goto done;
463 }
464
465 /* no cache; hit the wire */
466 status = cm_connect_sam(domain, tmp_ctx, false, &samr_pipe, &dom_pol);
467 if (!NT_STATUS_IS_OK(status)) {
468 goto done;
469 }
470
471 status = rpc_query_user(tmp_ctx,
472 samr_pipe,
473 &dom_pol,
474 &domain->sid,
475 user_sid,
476 user_info);
477
478 done:
479 TALLOC_FREE(tmp_ctx);
480 return status;
481 }
482
483 /* Lookup groups a user is a member of. I wish Unix had a call like this! */
484 static NTSTATUS msrpc_lookup_usergroups(struct winbindd_domain *domain,
485 TALLOC_CTX *mem_ctx,
486 const struct dom_sid *user_sid,
487 uint32_t *pnum_groups,
488 struct dom_sid **puser_grpsids)
489 {
490 struct rpc_pipe_client *samr_pipe;
491 struct policy_handle dom_pol;
492 struct dom_sid *user_grpsids = NULL;
493 uint32_t num_groups = 0;
494 TALLOC_CTX *tmp_ctx;
495 NTSTATUS status;
496
497 DEBUG(3,("msrpc_lookup_usergroups sid=%s\n", sid_string_dbg(user_sid)));
498
499 *pnum_groups = 0;
500
501 tmp_ctx = talloc_stackframe();
502 if (tmp_ctx == NULL) {
503 return NT_STATUS_NO_MEMORY;
504 }
505
506 /* Check if we have a cached user_info_3 */
507 status = lookup_usergroups_cached(domain,
508 tmp_ctx,
509 user_sid,
510 &num_groups,
511 &user_grpsids);
512 if (NT_STATUS_IS_OK(status)) {
513 goto cached;
514 }
515
516 if ( !winbindd_can_contact_domain( domain ) ) {
517 DEBUG(10,("lookup_usergroups: No incoming trust for domain %s\n",
518 domain->name));
519
520 /* Tell the cache manager not to remember this one */
521 status = NT_STATUS_SYNCHRONIZATION_REQUIRED;
522 goto done;
523 }
524
525 /* no cache; hit the wire */
526 status = cm_connect_sam(domain, tmp_ctx, false, &samr_pipe, &dom_pol);
527 if (!NT_STATUS_IS_OK(status)) {
528 goto done;
529 }
530
531 status = rpc_lookup_usergroups(tmp_ctx,
532 samr_pipe,
533 &dom_pol,
534 &domain->sid,
535 user_sid,
536 &num_groups,
537 &user_grpsids);
538 if (!NT_STATUS_IS_OK(status)) {
539 goto done;
540 }
541
542 cached:
543 *pnum_groups = num_groups;
544
545 if (puser_grpsids) {
546 *puser_grpsids = talloc_move(mem_ctx, &user_grpsids);
547 }
548
549 done:
550 TALLOC_FREE(tmp_ctx);
551 return status;
552 return NT_STATUS_OK;
553 }
554
555 #define MAX_SAM_ENTRIES_W2K 0x400 /* 1024 */
556
557 static NTSTATUS msrpc_lookup_useraliases(struct winbindd_domain *domain,
558 TALLOC_CTX *mem_ctx,
559 uint32 num_sids, const struct dom_sid *sids,
560 uint32 *pnum_aliases,
561 uint32 **palias_rids)
562 {
563 struct rpc_pipe_client *samr_pipe;
564 struct policy_handle dom_pol;
565 uint32_t num_aliases = 0;
566 uint32_t *alias_rids = NULL;
567 TALLOC_CTX *tmp_ctx;
568 NTSTATUS status;
569
570 DEBUG(3,("msrpc_lookup_useraliases\n"));
571
572 if (pnum_aliases) {
573 *pnum_aliases = 0;
574 }
575
576 tmp_ctx = talloc_stackframe();
577 if (tmp_ctx == NULL) {
578 return NT_STATUS_NO_MEMORY;
579 }
580
581 if (!winbindd_can_contact_domain(domain)) {
582 DEBUG(10,("msrpc_lookup_useraliases: No incoming trust for domain %s\n",
583 domain->name));
584 /* Tell the cache manager not to remember this one */
585 status = NT_STATUS_SYNCHRONIZATION_REQUIRED;
586 goto done;
587 }
588
589 status = cm_connect_sam(domain, tmp_ctx, false, &samr_pipe, &dom_pol);
590 if (!NT_STATUS_IS_OK(status)) {
591 goto done;
592 }
593
594 status = rpc_lookup_useraliases(tmp_ctx,
595 samr_pipe,
596 &dom_pol,
597 num_sids,
598 sids,
599 &num_aliases,
600 &alias_rids);
601 if (!NT_STATUS_IS_OK(status)) {
602 goto done;
603 }
604
605 if (pnum_aliases) {
606 *pnum_aliases = num_aliases;
607 }
608
609 if (palias_rids) {
610 *palias_rids = talloc_move(mem_ctx, &alias_rids);
611 }
612
613 done:
614 TALLOC_FREE(tmp_ctx);
615 return status;
616 }
617
618
619 /* Lookup group membership given a rid. */
620 static NTSTATUS msrpc_lookup_groupmem(struct winbindd_domain *domain,
621 TALLOC_CTX *mem_ctx,
622 const struct dom_sid *group_sid,
623 enum lsa_SidType type,
624 uint32_t *num_names,
625 struct dom_sid **sid_mem,
626 char ***names,
627 uint32_t **name_types)
628 {
629 NTSTATUS status, result;
630 uint32 i, total_names = 0;
631 struct policy_handle dom_pol, group_pol;
632 uint32 des_access = SEC_FLAG_MAXIMUM_ALLOWED;
633 uint32 *rid_mem = NULL;
634 uint32 group_rid;
635 unsigned int j, r;
636 struct rpc_pipe_client *cli;
637 unsigned int orig_timeout;
638 struct samr_RidAttrArray *rids = NULL;
639 struct dcerpc_binding_handle *b;
640
641 DEBUG(3,("msrpc_lookup_groupmem: %s sid=%s\n", domain->name,
642 sid_string_dbg(group_sid)));
643
644 if ( !winbindd_can_contact_domain( domain ) ) {
645 DEBUG(10,("lookup_groupmem: No incoming trust for domain %s\n",
646 domain->name));
647 return NT_STATUS_OK;
648 }
649
650 if (!sid_peek_check_rid(&domain->sid, group_sid, &group_rid))
651 return NT_STATUS_UNSUCCESSFUL;
652
653 *num_names = 0;
654
655 result = cm_connect_sam(domain, mem_ctx, false, &cli, &dom_pol);
656 if (!NT_STATUS_IS_OK(result))
657 return result;
658
659 b = cli->binding_handle;
660
661 status = dcerpc_samr_OpenGroup(b, mem_ctx,
662 &dom_pol,
663 des_access,
664 group_rid,
665 &group_pol,
666 &result);
667 if (!NT_STATUS_IS_OK(status)) {
668 return status;
669 }
670 if (!NT_STATUS_IS_OK(result)) {
671 return result;
672 }
673
674 /* Step #1: Get a list of user rids that are the members of the
675 group. */
676
677 /* This call can take a long time - allow the server to time out.
678 35 seconds should do it. */
679
680 orig_timeout = rpccli_set_timeout(cli, 35000);
681
682 status = dcerpc_samr_QueryGroupMember(b, mem_ctx,
683 &group_pol,
684 &rids,
685 &result);
686
687 /* And restore our original timeout. */
688 rpccli_set_timeout(cli, orig_timeout);
689
690 {
691 NTSTATUS _result;
692 dcerpc_samr_Close(b, mem_ctx, &group_pol, &_result);
693 }
694
695 if (!NT_STATUS_IS_OK(status)) {
696 return status;
697 }
698
699 if (!NT_STATUS_IS_OK(result)) {
700 return result;
701 }
702
703 if (!rids || !rids->count) {
704 names = NULL;
705 name_types = NULL;
706 sid_mem = NULL;
707 return NT_STATUS_OK;
708 }
709
710 *num_names = rids->count;
711 rid_mem = rids->rids;
712
713 /* Step #2: Convert list of rids into list of usernames. Do this
714 in bunches of ~1000 to avoid crashing NT4. It looks like there
715 is a buffer overflow or something like that lurking around
716 somewhere. */
717
718 #define MAX_LOOKUP_RIDS 900
719
720 *names = talloc_zero_array(mem_ctx, char *, *num_names);
721 *name_types = talloc_zero_array(mem_ctx, uint32, *num_names);
722 *sid_mem = talloc_zero_array(mem_ctx, struct dom_sid, *num_names);
723
724 for (j=0;j<(*num_names);j++)
725 sid_compose(&(*sid_mem)[j], &domain->sid, rid_mem[j]);
726
727 if (*num_names>0 && (!*names || !*name_types))
728 return NT_STATUS_NO_MEMORY;
729
730 for (i = 0; i < *num_names; i += MAX_LOOKUP_RIDS) {
731 int num_lookup_rids = MIN(*num_names - i, MAX_LOOKUP_RIDS);
732 struct lsa_Strings tmp_names;
733 struct samr_Ids tmp_types;
734
735 /* Lookup a chunk of rids */
736
737 status = dcerpc_samr_LookupRids(b, mem_ctx,
738 &dom_pol,
739 num_lookup_rids,
740 &rid_mem[i],
741 &tmp_names,
742 &tmp_types,
743 &result);
744 if (!NT_STATUS_IS_OK(status)) {
745 return status;
746 }
747
748 /* see if we have a real error (and yes the
749 STATUS_SOME_UNMAPPED is the one returned from 2k) */
750
751 if (!NT_STATUS_IS_OK(result) &&
752 !NT_STATUS_EQUAL(result, STATUS_SOME_UNMAPPED))
753 return result;
754
755 /* Copy result into array. The talloc system will take
756 care of freeing the temporary arrays later on. */
757
758 if (tmp_names.count != num_lookup_rids) {
759 return NT_STATUS_INVALID_NETWORK_RESPONSE;
760 }
761 if (tmp_types.count != num_lookup_rids) {
762 return NT_STATUS_INVALID_NETWORK_RESPONSE;
763 }
764
765 for (r=0; r<tmp_names.count; r++) {
766 if (tmp_types.ids[r] == SID_NAME_UNKNOWN) {
767 continue;
768 }
769 if (total_names >= *num_names) {
770 break;
771 }
772 (*names)[total_names] = fill_domain_username_talloc(
773 mem_ctx, domain->name,
774 tmp_names.names[r].string, true);
775 (*name_types)[total_names] = tmp_types.ids[r];
776 total_names += 1;
777 }
778 }
779
780 *num_names = total_names;
781
782 return NT_STATUS_OK;
783 }
784
785 #ifdef HAVE_LDAP
786
787 #include "ads.h"
788
789 static int get_ldap_seq(const char *server, struct sockaddr_storage *ss, int port, uint32 *seq)
790 {
791 int ret = -1;
792 struct timeval to;
793 const char *attrs[] = {"highestCommittedUSN", NULL};
794 LDAPMessage *res = NULL;
795 char **values = NULL;
796 LDAP *ldp = NULL;
797
798 *seq = DOM_SEQUENCE_NONE;
799
800 /*
801 * Parameterised (5) second timeout on open. This is needed as the
802 * search timeout doesn't seem to apply to doing an open as well. JRA.
803 */
804
805 ldp = ldap_open_with_timeout(server, ss, port, lp_ldap_timeout());
806 if (ldp == NULL)
807 return -1;
808
809 /* Timeout if no response within 20 seconds. */
810 to.tv_sec = 10;
811 to.tv_usec = 0;
812
813 if (ldap_search_st(ldp, "", LDAP_SCOPE_BASE, "(objectclass=*)",
814 discard_const_p(char *, attrs), 0, &to, &res))
815 goto done;
816
817 if (ldap_count_entries(ldp, res) != 1)
818 goto done;
819
820 values = ldap_get_values(ldp, res, "highestCommittedUSN");
821 if (!values || !values[0])
822 goto done;
823
824 *seq = atoi(values[0]);
825 ret = 0;
826
827 done:
828
829 if (values)
830 ldap_value_free(values);
831 if (res)
832 ldap_msgfree(res);
833 if (ldp)
834 ldap_unbind(ldp);
835 return ret;
836 }
837
838 /**********************************************************************
839 Get the sequence number for a Windows AD native mode domain using
840 LDAP queries.
841 **********************************************************************/
842
843 static int get_ldap_sequence_number(struct winbindd_domain *domain, uint32 *seq)
844 {
845 int ret = -1;
846 char addr[INET6_ADDRSTRLEN];
847
848 print_sockaddr(addr, sizeof(addr), &domain->dcaddr);
849 if ((ret = get_ldap_seq(addr, &domain->dcaddr, LDAP_PORT, seq)) == 0) {
850 DEBUG(3, ("get_ldap_sequence_number: Retrieved sequence "
851 "number for Domain (%s) from DC (%s)\n",
852 domain->name, addr));
853 }
854 return ret;
855 }
856
857 #endif /* HAVE_LDAP */
858
859 /* find the sequence number for a domain */
860 static NTSTATUS msrpc_sequence_number(struct winbindd_domain *domain,
861 uint32_t *pseq)
862 {
863 struct rpc_pipe_client *samr_pipe;
864 struct policy_handle dom_pol;
865 uint32_t seq;
866 TALLOC_CTX *tmp_ctx;
867 NTSTATUS status;
868
869 DEBUG(3, ("msrpc_sequence_number: fetch sequence_number for %s\n", domain->name));
870
871 if (pseq) {
872 *pseq = DOM_SEQUENCE_NONE;
873 }
874
875 tmp_ctx = talloc_stackframe();
876 if (tmp_ctx == NULL) {
877 return NT_STATUS_NO_MEMORY;
878 }
879
880 if ( !winbindd_can_contact_domain( domain ) ) {
881 DEBUG(10,("sequence_number: No incoming trust for domain %s\n",
882 domain->name));
883 if (pseq) {
884 *pseq = time(NULL);
885 }
886 status = NT_STATUS_OK;
887 goto done;
888 }
889
890 #ifdef HAVE_LDAP
891 if (domain->active_directory) {
892 int rc;
893
894 DEBUG(8,("using get_ldap_seq() to retrieve the "
895 "sequence number\n"));
896
897 rc = get_ldap_sequence_number(domain, &seq);
898 if (rc == 0) {
899 DEBUG(10,("domain_sequence_number: LDAP for "
900 "domain %s is %u\n",
901 domain->name, seq));
902
903 if (pseq) {
904 *pseq = seq;
905 }
906
907 status = NT_STATUS_OK;
908 goto done;
909 }
910
911 DEBUG(10,("domain_sequence_number: failed to get LDAP "
912 "sequence number for domain %s\n",
913 domain->name ));
914 }
915 #endif /* HAVE_LDAP */
916
917 status = cm_connect_sam(domain, tmp_ctx, false, &samr_pipe, &dom_pol);
918 if (!NT_STATUS_IS_OK(status)) {
919 goto done;
920 }
921
922 status = rpc_sequence_number(tmp_ctx,
923 samr_pipe,
924 &dom_pol,
925 domain->name,
926 &seq);
927 if (!NT_STATUS_IS_OK(status)) {
928 goto done;
929 }
930
931 if (pseq) {
932 *pseq = seq;
933 }
934
935 done:
936 TALLOC_FREE(tmp_ctx);
937 return status;
938 }
939
940 /* get a list of trusted domains */
941 static NTSTATUS msrpc_trusted_domains(struct winbindd_domain *domain,
942 TALLOC_CTX *mem_ctx,
943 struct netr_DomainTrustList *ptrust_list)
944 {
945 struct rpc_pipe_client *lsa_pipe;
946 struct policy_handle lsa_policy;
947 struct netr_DomainTrust *trusts = NULL;
948 uint32_t num_trusts = 0;
949 TALLOC_CTX *tmp_ctx;
950 NTSTATUS status;
951
952 DEBUG(3,("msrpc_trusted_domains\n"));
953
954 if (ptrust_list) {
955 ZERO_STRUCTP(ptrust_list);
956 }
957
958 tmp_ctx = talloc_stackframe();
959 if (tmp_ctx == NULL) {
960 return NT_STATUS_NO_MEMORY;
961 }
962
963 status = cm_connect_lsa(domain, tmp_ctx, &lsa_pipe, &lsa_policy);
964 if (!NT_STATUS_IS_OK(status)) {
965 goto done;
966 }
967
968 status = rpc_trusted_domains(tmp_ctx,
969 lsa_pipe,
970 &lsa_policy,
971 &num_trusts,
972 &trusts);
973 if (!NT_STATUS_IS_OK(status)) {
974 goto done;
975 }
976
977 if (ptrust_list) {
978 ptrust_list->count = num_trusts;
979 ptrust_list->array = talloc_move(mem_ctx, &trusts);
980 }
981
982 done:
983 TALLOC_FREE(tmp_ctx);
984 return status;
985 }
986
987 /* find the lockout policy for a domain */
988 static NTSTATUS msrpc_lockout_policy(struct winbindd_domain *domain,
989 TALLOC_CTX *mem_ctx,
990 struct samr_DomInfo12 *lockout_policy)
991 {
992 NTSTATUS status, result;
993 struct rpc_pipe_client *cli;
994 struct policy_handle dom_pol;
995 union samr_DomainInfo *info = NULL;
996 struct dcerpc_binding_handle *b;
997
998 DEBUG(3, ("msrpc_lockout_policy: fetch lockout policy for %s\n", domain->name));
999
1000 if ( !winbindd_can_contact_domain( domain ) ) {
1001 DEBUG(10,("msrpc_lockout_policy: No incoming trust for domain %s\n",
1002 domain->name));
1003 return NT_STATUS_NOT_SUPPORTED;
1004 }
1005
1006 status = cm_connect_sam(domain, mem_ctx, false, &cli, &dom_pol);
1007 if (!NT_STATUS_IS_OK(status)) {
1008 goto done;
1009 }
1010
1011 b = cli->binding_handle;
1012
1013 status = dcerpc_samr_QueryDomainInfo(b, mem_ctx,
1014 &dom_pol,
1015 DomainLockoutInformation,
1016 &info,
1017 &result);
1018 if (!NT_STATUS_IS_OK(status)) {
1019 goto done;
1020 }
1021 if (!NT_STATUS_IS_OK(result)) {
1022 status = result;
1023 goto done;
1024 }
1025
1026 *lockout_policy = info->info12;
1027
1028 DEBUG(10,("msrpc_lockout_policy: lockout_threshold %d\n",
1029 info->info12.lockout_threshold));
1030
1031 done:
1032
1033 return status;
1034 }
1035
1036 /* find the password policy for a domain */
1037 static NTSTATUS msrpc_password_policy(struct winbindd_domain *domain,
1038 TALLOC_CTX *mem_ctx,
1039 struct samr_DomInfo1 *password_policy)
1040 {
1041 NTSTATUS status, result;
1042 struct rpc_pipe_client *cli;
1043 struct policy_handle dom_pol;
1044 union samr_DomainInfo *info = NULL;
1045 struct dcerpc_binding_handle *b;
1046
1047 DEBUG(3, ("msrpc_password_policy: fetch password policy for %s\n",
1048 domain->name));
1049
1050 if ( !winbindd_can_contact_domain( domain ) ) {
1051 DEBUG(10,("msrpc_password_policy: No incoming trust for domain %s\n",
1052 domain->name));
1053 return NT_STATUS_NOT_SUPPORTED;
1054 }
1055
1056 status = cm_connect_sam(domain, mem_ctx, false, &cli, &dom_pol);
1057 if (!NT_STATUS_IS_OK(status)) {
1058 goto done;
1059 }
1060
1061 b = cli->binding_handle;
1062
1063 status = dcerpc_samr_QueryDomainInfo(b, mem_ctx,
1064 &dom_pol,
1065 DomainPasswordInformation,
1066 &info,
1067 &result);
1068 if (!NT_STATUS_IS_OK(status)) {
1069 goto done;
1070 }
1071 if (!NT_STATUS_IS_OK(result)) {
1072 goto done;
1073 }
1074
1075 *password_policy = info->info1;
1076
1077 DEBUG(10,("msrpc_password_policy: min_length_password %d\n",
1078 info->info1.min_password_length));
1079
1080 done:
1081
1082 return status;
1083 }
1084
1085 NTSTATUS winbindd_lookup_sids(TALLOC_CTX *mem_ctx,
1086 struct winbindd_domain *domain,
1087 uint32_t num_sids,
1088 const struct dom_sid *sids,
1089 char ***domains,
1090 char ***names,
1091 enum lsa_SidType **types)
1092 {
1093 NTSTATUS status;
1094 NTSTATUS result;
1095 struct rpc_pipe_client *cli = NULL;
1096 struct dcerpc_binding_handle *b = NULL;
1097 struct policy_handle lsa_policy;
1098 unsigned int orig_timeout;
1099 bool use_lookupsids3 = false;
1100 bool retried = false;
1101
1102 connect:
1103 status = cm_connect_lsat(domain, mem_ctx, &cli, &lsa_policy);
1104 if (!NT_STATUS_IS_OK(status)) {
1105 return status;
1106 }
1107
1108 b = cli->binding_handle;
1109
1110 if (cli->transport->transport == NCACN_IP_TCP) {
1111 use_lookupsids3 = true;
1112 }
1113
1114 /*
1115 * This call can take a long time
1116 * allow the server to time out.
1117 * 35 seconds should do it.
1118 */
1119 orig_timeout = dcerpc_binding_handle_set_timeout(b, 35000);
1120
1121 status = dcerpc_lsa_lookup_sids_generic(b,
1122 mem_ctx,
1123 &lsa_policy,
1124 num_sids,
1125 sids,
1126 domains,
1127 names,
1128 types,
1129 use_lookupsids3,
1130 &result);
1131
1132 /* And restore our original timeout. */
1133 dcerpc_binding_handle_set_timeout(b, orig_timeout);
1134
1135 if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED) ||
1136 NT_STATUS_EQUAL(status, NT_STATUS_RPC_SEC_PKG_ERROR) ||
1137 NT_STATUS_EQUAL(status, NT_STATUS_NETWORK_ACCESS_DENIED)) {
1138 /*
1139 * This can happen if the schannel key is not
1140 * valid anymore, we need to invalidate the
1141 * all connections to the dc and reestablish
1142 * a netlogon connection first.
1143 */
1144 invalidate_cm_connection(domain);
1145 domain->can_do_ncacn_ip_tcp = domain->active_directory;
1146 if (!retried) {
1147 retried = true;
1148 goto connect;
1149 }
1150 status = NT_STATUS_ACCESS_DENIED;
1151 }
1152
1153 if (!NT_STATUS_IS_OK(status)) {
1154 return status;
1155 }
1156
1157 if (!NT_STATUS_IS_OK(result)) {
1158 return result;
1159 }
1160
1161 return NT_STATUS_OK;
1162 }
1163
1164 static NTSTATUS winbindd_lookup_names(TALLOC_CTX *mem_ctx,
1165 struct winbindd_domain *domain,
1166 uint32_t num_names,
1167 const char **names,
1168 const char ***domains,
1169 struct dom_sid **sids,
1170 enum lsa_SidType **types)
1171 {
1172 NTSTATUS status;
1173 NTSTATUS result;
1174 struct rpc_pipe_client *cli = NULL;
1175 struct dcerpc_binding_handle *b = NULL;
1176 struct policy_handle lsa_policy;
1177 unsigned int orig_timeout = 0;
1178 bool use_lookupnames4 = false;
1179 bool retried = false;
1180
1181 connect:
1182 status = cm_connect_lsat(domain, mem_ctx, &cli, &lsa_policy);
1183 if (!NT_STATUS_IS_OK(status)) {
1184 return status;
1185 }
1186
1187 b = cli->binding_handle;
1188
1189 if (cli->transport->transport == NCACN_IP_TCP) {
1190 use_lookupnames4 = true;
1191 }
1192
1193 /*
1194 * This call can take a long time
1195 * allow the server to time out.
1196 * 35 seconds should do it.
1197 */
1198 orig_timeout = dcerpc_binding_handle_set_timeout(b, 35000);
1199
1200 status = dcerpc_lsa_lookup_names_generic(b,
1201 mem_ctx,
1202 &lsa_policy,
1203 num_names,
1204 (const char **) names,
1205 domains,
1206 1,
1207 sids,
1208 types,
1209 use_lookupnames4,
1210 &result);
1211
1212 /* And restore our original timeout. */
1213 dcerpc_binding_handle_set_timeout(b, orig_timeout);
1214
1215 if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED) ||
1216 NT_STATUS_EQUAL(status, NT_STATUS_RPC_SEC_PKG_ERROR) ||
1217 NT_STATUS_EQUAL(status, NT_STATUS_NETWORK_ACCESS_DENIED)) {
1218 /*
1219 * This can happen if the schannel key is not
1220 * valid anymore, we need to invalidate the
1221 * all connections to the dc and reestablish
1222 * a netlogon connection first.
1223 */
1224 invalidate_cm_connection(domain);
1225 if (!retried) {
1226 retried = true;
1227 goto connect;
1228 }
1229 status = NT_STATUS_ACCESS_DENIED;
1230 }
1231
1232 if (!NT_STATUS_IS_OK(status)) {
1233 return status;
1234 }
1235
1236 if (!NT_STATUS_IS_OK(result)) {
1237 return result;
1238 }
1239
1240 return NT_STATUS_OK;
1241 }
1242
1243 /* the rpc backend methods are exposed via this structure */
1244 struct winbindd_methods msrpc_methods = {
1245 False,
1246 msrpc_query_user_list,
1247 msrpc_enum_dom_groups,
1248 msrpc_enum_local_groups,
1249 msrpc_name_to_sid,
1250 msrpc_sid_to_name,
1251 msrpc_rids_to_names,
1252 msrpc_query_user,
1253 msrpc_lookup_usergroups,
1254 msrpc_lookup_useraliases,
1255 msrpc_lookup_groupmem,
1256 msrpc_sequence_number,
1257 msrpc_lockout_policy,
1258 msrpc_password_policy,
1259 msrpc_trusted_domains,
1260 };
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