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gensec: Cast data for MIT Kerberos correctly
[Samba.git] / source3 / winbindd / winbindd_msrpc.c
blob0d0e4ca6506579357bdc3ad055fe99c443c7d8e6
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 #include "libsmb/samlogon_cache.h"
35
36 #undef DBGC_CLASS
37 #define DBGC_CLASS DBGC_WINBIND
38
39 static NTSTATUS winbindd_lookup_names(TALLOC_CTX *mem_ctx,
40 struct winbindd_domain *domain,
41 uint32_t num_names,
42 const char **names,
43 const char ***domains,
44 struct dom_sid **sids,
45 enum lsa_SidType **types);
46
47 /* Query display info for a domain. This returns enough information plus a
48 bit extra to give an overview of domain users for the User Manager
49 application. */
50 static NTSTATUS msrpc_query_user_list(struct winbindd_domain *domain,
51 TALLOC_CTX *mem_ctx,
52 uint32_t **prids)
53 {
54 struct rpc_pipe_client *samr_pipe = NULL;
55 struct policy_handle dom_pol;
56 uint32_t *rids;
57 TALLOC_CTX *tmp_ctx;
58 NTSTATUS status;
59
60 DEBUG(3, ("msrpc_query_user_list\n"));
61
62 tmp_ctx = talloc_stackframe();
63 if (tmp_ctx == NULL) {
64 return NT_STATUS_NO_MEMORY;
65 }
66
67 if ( !winbindd_can_contact_domain( domain ) ) {
68 DEBUG(10,("query_user_list: No incoming trust for domain %s\n",
69 domain->name));
70 status = NT_STATUS_OK;
71 goto done;
72 }
73
74 status = cm_connect_sam(domain, tmp_ctx, false, &samr_pipe, &dom_pol);
75 if (!NT_STATUS_IS_OK(status)) {
76 goto done;
77 }
78
79 status = rpc_query_user_list(tmp_ctx,
80 samr_pipe,
81 &dom_pol,
82 &domain->sid,
83 &rids);
84 if (!NT_STATUS_IS_OK(status)) {
85 goto done;
86 }
87
88 if (prids) {
89 *prids = talloc_move(mem_ctx, &rids);
90 }
91
92 done:
93 TALLOC_FREE(rids);
94 TALLOC_FREE(tmp_ctx);
95 return status;
96 }
97
98 /* list all domain groups */
99 static NTSTATUS msrpc_enum_dom_groups(struct winbindd_domain *domain,
100 TALLOC_CTX *mem_ctx,
101 uint32_t *pnum_info,
102 struct wb_acct_info **pinfo)
103 {
104 struct rpc_pipe_client *samr_pipe;
105 struct policy_handle dom_pol;
106 struct wb_acct_info *info = NULL;
107 uint32_t num_info = 0;
108 TALLOC_CTX *tmp_ctx;
109 NTSTATUS status;
110
111 DEBUG(3,("msrpc_enum_dom_groups\n"));
112
113 if (pnum_info) {
114 *pnum_info = 0;
115 }
116
117 tmp_ctx = talloc_stackframe();
118 if (tmp_ctx == NULL) {
119 return NT_STATUS_NO_MEMORY;
120 }
121
122 if ( !winbindd_can_contact_domain( domain ) ) {
123 DEBUG(10,("enum_domain_groups: No incoming trust for domain %s\n",
124 domain->name));
125 status = NT_STATUS_OK;
126 goto done;
127 }
128
129 status = cm_connect_sam(domain, tmp_ctx, false, &samr_pipe, &dom_pol);
130 if (!NT_STATUS_IS_OK(status)) {
131 goto done;
132 }
133
134 status = rpc_enum_dom_groups(tmp_ctx,
135 samr_pipe,
136 &dom_pol,
137 &num_info,
138 &info);
139 if (!NT_STATUS_IS_OK(status)) {
140 goto done;
141 }
142
143 if (pnum_info) {
144 *pnum_info = num_info;
145 }
146
147 if (pinfo) {
148 *pinfo = talloc_move(mem_ctx, &info);
149 }
150
151 done:
152 TALLOC_FREE(tmp_ctx);
153 return status;
154 }
155
156 /* List all domain groups */
157
158 static NTSTATUS msrpc_enum_local_groups(struct winbindd_domain *domain,
159 TALLOC_CTX *mem_ctx,
160 uint32_t *pnum_info,
161 struct wb_acct_info **pinfo)
162 {
163 struct rpc_pipe_client *samr_pipe;
164 struct policy_handle dom_pol;
165 struct wb_acct_info *info = NULL;
166 uint32_t num_info = 0;
167 TALLOC_CTX *tmp_ctx;
168 NTSTATUS status;
169
170 DEBUG(3,("msrpc_enum_local_groups\n"));
171
172 if (pnum_info) {
173 *pnum_info = 0;
174 }
175
176 tmp_ctx = talloc_stackframe();
177 if (tmp_ctx == NULL) {
178 return NT_STATUS_NO_MEMORY;
179 }
180
181 if ( !winbindd_can_contact_domain( domain ) ) {
182 DEBUG(10,("enum_local_groups: No incoming trust for domain %s\n",
183 domain->name));
184 status = NT_STATUS_OK;
185 goto done;
186 }
187
188 status = cm_connect_sam(domain, tmp_ctx, false, &samr_pipe, &dom_pol);
189 if (!NT_STATUS_IS_OK(status)) {
190 goto done;
191 }
192
193 status = rpc_enum_local_groups(mem_ctx,
194 samr_pipe,
195 &dom_pol,
196 &num_info,
197 &info);
198 if (!NT_STATUS_IS_OK(status)) {
199 goto done;
200 }
201
202 if (pnum_info) {
203 *pnum_info = num_info;
204 }
205
206 if (pinfo) {
207 *pinfo = talloc_move(mem_ctx, &info);
208 }
209
210 done:
211 TALLOC_FREE(tmp_ctx);
212 return status;
213 }
214
215 /* convert a single name to a sid in a domain */
216 static NTSTATUS msrpc_name_to_sid(struct winbindd_domain *domain,
217 TALLOC_CTX *mem_ctx,
218 const char *domain_name,
219 const char *name,
220 uint32_t flags,
221 struct dom_sid *sid,
222 enum lsa_SidType *type)
223 {
224 NTSTATUS result;
225 struct dom_sid *sids = NULL;
226 enum lsa_SidType *types = NULL;
227 char *full_name = NULL;
228 const char *names[1];
229 NTSTATUS name_map_status = NT_STATUS_UNSUCCESSFUL;
230 char *mapped_name = NULL;
231
232 if (name == NULL || *name=='\0') {
233 full_name = talloc_asprintf(mem_ctx, "%s", domain_name);
234 } else if (domain_name == NULL || *domain_name == '\0') {
235 full_name = talloc_asprintf(mem_ctx, "%s", name);
236 } else {
237 full_name = talloc_asprintf(mem_ctx, "%s\\%s", domain_name, name);
238 }
239 if (!full_name) {
240 DEBUG(0, ("talloc_asprintf failed!\n"));
241 return NT_STATUS_NO_MEMORY;
242 }
243
244 DEBUG(3, ("msrpc_name_to_sid: name=%s\n", full_name));
245
246 name_map_status = normalize_name_unmap(mem_ctx, full_name,
247 &mapped_name);
248
249 /* Reset the full_name pointer if we mapped anything */
250
251 if (NT_STATUS_IS_OK(name_map_status) ||
252 NT_STATUS_EQUAL(name_map_status, NT_STATUS_FILE_RENAMED))
253 {
254 full_name = mapped_name;
255 }
256
257 DEBUG(3,("name_to_sid [rpc] %s for domain %s\n",
258 full_name?full_name:"", domain_name ));
259
260 names[0] = full_name;
261
262 result = winbindd_lookup_names(mem_ctx, domain, 1,
263 names, NULL,
264 &sids, &types);
265 if (!NT_STATUS_IS_OK(result))
266 return result;
267
268 /* Return rid and type if lookup successful */
269
270 sid_copy(sid, &sids[0]);
271 *type = types[0];
272
273 return NT_STATUS_OK;
274 }
275
276 /*
277 convert a domain SID to a user or group name
278 */
279 static NTSTATUS msrpc_sid_to_name(struct winbindd_domain *domain,
280 TALLOC_CTX *mem_ctx,
281 const struct dom_sid *sid,
282 char **domain_name,
283 char **name,
284 enum lsa_SidType *type)
285 {
286 char **domains;
287 char **names;
288 enum lsa_SidType *types = NULL;
289 NTSTATUS result;
290 NTSTATUS name_map_status = NT_STATUS_UNSUCCESSFUL;
291 char *mapped_name = NULL;
292
293 DEBUG(3, ("msrpc_sid_to_name: %s for domain %s\n", sid_string_dbg(sid),
294 domain->name ));
295
296 result = winbindd_lookup_sids(mem_ctx,
297 domain,
298 1,
299 sid,
300 &domains,
301 &names,
302 &types);
303 if (!NT_STATUS_IS_OK(result)) {
304 DEBUG(2,("msrpc_sid_to_name: failed to lookup sids: %s\n",
305 nt_errstr(result)));
306 return result;
307 }
308
309
310 *type = (enum lsa_SidType)types[0];
311 *domain_name = domains[0];
312 *name = names[0];
313
314 DEBUG(5,("Mapped sid to [%s]\\[%s]\n", domains[0], *name));
315
316 name_map_status = normalize_name_map(mem_ctx, domain, *name,
317 &mapped_name);
318 if (NT_STATUS_IS_OK(name_map_status) ||
319 NT_STATUS_EQUAL(name_map_status, NT_STATUS_FILE_RENAMED))
320 {
321 *name = mapped_name;
322 DEBUG(5,("returning mapped name -- %s\n", *name));
323 }
324
325 return NT_STATUS_OK;
326 }
327
328 static NTSTATUS msrpc_rids_to_names(struct winbindd_domain *domain,
329 TALLOC_CTX *mem_ctx,
330 const struct dom_sid *sid,
331 uint32_t *rids,
332 size_t num_rids,
333 char **domain_name,
334 char ***names,
335 enum lsa_SidType **types)
336 {
337 char **domains;
338 NTSTATUS result;
339 struct dom_sid *sids;
340 size_t i;
341 char **ret_names;
342
343 DEBUG(3, ("msrpc_rids_to_names: domain %s\n", domain->name ));
344
345 if (num_rids) {
346 sids = talloc_array(mem_ctx, struct dom_sid, num_rids);
347 if (sids == NULL) {
348 return NT_STATUS_NO_MEMORY;
349 }
350 } else {
351 sids = NULL;
352 }
353
354 for (i=0; i<num_rids; i++) {
355 if (!sid_compose(&sids[i], sid, rids[i])) {
356 return NT_STATUS_INTERNAL_ERROR;
357 }
358 }
359
360 result = winbindd_lookup_sids(mem_ctx,
361 domain,
362 num_rids,
363 sids,
364 &domains,
365 names,
366 types);
367
368 if (!NT_STATUS_IS_OK(result) &&
369 !NT_STATUS_EQUAL(result, STATUS_SOME_UNMAPPED)) {
370 return result;
371 }
372
373 ret_names = *names;
374 for (i=0; i<num_rids; i++) {
375 NTSTATUS name_map_status = NT_STATUS_UNSUCCESSFUL;
376 char *mapped_name = NULL;
377
378 if ((*types)[i] != SID_NAME_UNKNOWN) {
379 name_map_status = normalize_name_map(mem_ctx,
380 domain,
381 ret_names[i],
382 &mapped_name);
383 if (NT_STATUS_IS_OK(name_map_status) ||
384 NT_STATUS_EQUAL(name_map_status, NT_STATUS_FILE_RENAMED))
385 {
386 ret_names[i] = mapped_name;
387 }
388
389 *domain_name = domains[i];
390 }
391 }
392
393 return result;
394 }
395
396 #define MAX_SAM_ENTRIES_W2K 0x400 /* 1024 */
397
398 static NTSTATUS msrpc_lookup_useraliases(struct winbindd_domain *domain,
399 TALLOC_CTX *mem_ctx,
400 uint32_t num_sids, const struct dom_sid *sids,
401 uint32_t *pnum_aliases,
402 uint32_t **palias_rids)
403 {
404 struct rpc_pipe_client *samr_pipe;
405 struct policy_handle dom_pol;
406 uint32_t num_aliases = 0;
407 uint32_t *alias_rids = NULL;
408 TALLOC_CTX *tmp_ctx;
409 NTSTATUS status;
410
411 DEBUG(3,("msrpc_lookup_useraliases\n"));
412
413 if (pnum_aliases) {
414 *pnum_aliases = 0;
415 }
416
417 tmp_ctx = talloc_stackframe();
418 if (tmp_ctx == NULL) {
419 return NT_STATUS_NO_MEMORY;
420 }
421
422 if (!winbindd_can_contact_domain(domain)) {
423 DEBUG(10,("msrpc_lookup_useraliases: No incoming trust for domain %s\n",
424 domain->name));
425 /* Tell the cache manager not to remember this one */
426 status = NT_STATUS_SYNCHRONIZATION_REQUIRED;
427 goto done;
428 }
429
430 status = cm_connect_sam(domain, tmp_ctx, false, &samr_pipe, &dom_pol);
431 if (!NT_STATUS_IS_OK(status)) {
432 goto done;
433 }
434
435 status = rpc_lookup_useraliases(tmp_ctx,
436 samr_pipe,
437 &dom_pol,
438 num_sids,
439 sids,
440 &num_aliases,
441 &alias_rids);
442 if (!NT_STATUS_IS_OK(status)) {
443 goto done;
444 }
445
446 if (pnum_aliases) {
447 *pnum_aliases = num_aliases;
448 }
449
450 if (palias_rids) {
451 *palias_rids = talloc_move(mem_ctx, &alias_rids);
452 }
453
454 done:
455 TALLOC_FREE(tmp_ctx);
456 return status;
457 }
458
459
460 /* Lookup group membership given a rid. */
461 static NTSTATUS msrpc_lookup_groupmem(struct winbindd_domain *domain,
462 TALLOC_CTX *mem_ctx,
463 const struct dom_sid *group_sid,
464 enum lsa_SidType type,
465 uint32_t *num_names,
466 struct dom_sid **sid_mem,
467 char ***names,
468 uint32_t **name_types)
469 {
470 NTSTATUS status, result;
471 uint32_t i, total_names = 0;
472 struct policy_handle dom_pol, group_pol;
473 uint32_t des_access = SEC_FLAG_MAXIMUM_ALLOWED;
474 uint32_t *rid_mem = NULL;
475 uint32_t group_rid;
476 unsigned int j, r;
477 struct rpc_pipe_client *cli;
478 unsigned int orig_timeout;
479 struct samr_RidAttrArray *rids = NULL;
480 struct dcerpc_binding_handle *b;
481
482 DEBUG(3,("msrpc_lookup_groupmem: %s sid=%s\n", domain->name,
483 sid_string_dbg(group_sid)));
484
485 if ( !winbindd_can_contact_domain( domain ) ) {
486 DEBUG(10,("lookup_groupmem: No incoming trust for domain %s\n",
487 domain->name));
488 return NT_STATUS_OK;
489 }
490
491 if (!sid_peek_check_rid(&domain->sid, group_sid, &group_rid))
492 return NT_STATUS_UNSUCCESSFUL;
493
494 *num_names = 0;
495
496 result = cm_connect_sam(domain, mem_ctx, false, &cli, &dom_pol);
497 if (!NT_STATUS_IS_OK(result))
498 return result;
499
500 b = cli->binding_handle;
501
502 status = dcerpc_samr_OpenGroup(b, mem_ctx,
503 &dom_pol,
504 des_access,
505 group_rid,
506 &group_pol,
507 &result);
508 if (!NT_STATUS_IS_OK(status)) {
509 return status;
510 }
511 if (!NT_STATUS_IS_OK(result)) {
512 return result;
513 }
514
515 /* Step #1: Get a list of user rids that are the members of the
516 group. */
517
518 /* This call can take a long time - allow the server to time out.
519 35 seconds should do it. */
520
521 orig_timeout = rpccli_set_timeout(cli, 35000);
522
523 status = dcerpc_samr_QueryGroupMember(b, mem_ctx,
524 &group_pol,
525 &rids,
526 &result);
527
528 /* And restore our original timeout. */
529 rpccli_set_timeout(cli, orig_timeout);
530
531 {
532 NTSTATUS _result;
533 dcerpc_samr_Close(b, mem_ctx, &group_pol, &_result);
534 }
535
536 if (!NT_STATUS_IS_OK(status)) {
537 return status;
538 }
539
540 if (!NT_STATUS_IS_OK(result)) {
541 return result;
542 }
543
544 if (!rids || !rids->count) {
545 names = NULL;
546 name_types = NULL;
547 sid_mem = NULL;
548 return NT_STATUS_OK;
549 }
550
551 *num_names = rids->count;
552 rid_mem = rids->rids;
553
554 /* Step #2: Convert list of rids into list of usernames. Do this
555 in bunches of ~1000 to avoid crashing NT4. It looks like there
556 is a buffer overflow or something like that lurking around
557 somewhere. */
558
559 #define MAX_LOOKUP_RIDS 900
560
561 *names = talloc_zero_array(mem_ctx, char *, *num_names);
562 *name_types = talloc_zero_array(mem_ctx, uint32_t, *num_names);
563 *sid_mem = talloc_zero_array(mem_ctx, struct dom_sid, *num_names);
564
565 for (j=0;j<(*num_names);j++)
566 sid_compose(&(*sid_mem)[j], &domain->sid, rid_mem[j]);
567
568 if (*num_names>0 && (!*names || !*name_types))
569 return NT_STATUS_NO_MEMORY;
570
571 for (i = 0; i < *num_names; i += MAX_LOOKUP_RIDS) {
572 int num_lookup_rids = MIN(*num_names - i, MAX_LOOKUP_RIDS);
573 struct lsa_Strings tmp_names;
574 struct samr_Ids tmp_types;
575
576 /* Lookup a chunk of rids */
577
578 status = dcerpc_samr_LookupRids(b, mem_ctx,
579 &dom_pol,
580 num_lookup_rids,
581 &rid_mem[i],
582 &tmp_names,
583 &tmp_types,
584 &result);
585 if (!NT_STATUS_IS_OK(status)) {
586 return status;
587 }
588
589 /* see if we have a real error (and yes the
590 STATUS_SOME_UNMAPPED is the one returned from 2k) */
591
592 if (!NT_STATUS_IS_OK(result) &&
593 !NT_STATUS_EQUAL(result, STATUS_SOME_UNMAPPED))
594 return result;
595
596 /* Copy result into array. The talloc system will take
597 care of freeing the temporary arrays later on. */
598
599 if (tmp_names.count != num_lookup_rids) {
600 return NT_STATUS_INVALID_NETWORK_RESPONSE;
601 }
602 if (tmp_types.count != num_lookup_rids) {
603 return NT_STATUS_INVALID_NETWORK_RESPONSE;
604 }
605
606 for (r=0; r<tmp_names.count; r++) {
607 if (tmp_types.ids[r] == SID_NAME_UNKNOWN) {
608 continue;
609 }
610 if (total_names >= *num_names) {
611 break;
612 }
613 (*names)[total_names] = fill_domain_username_talloc(
614 mem_ctx, domain->name,
615 tmp_names.names[r].string, true);
616 (*name_types)[total_names] = tmp_types.ids[r];
617 total_names += 1;
618 }
619 }
620
621 *num_names = total_names;
622
623 return NT_STATUS_OK;
624 }
625
626 #ifdef HAVE_LDAP
627
628 #include "ads.h"
629
630 static int get_ldap_seq(const char *server, struct sockaddr_storage *ss, int port, uint32_t *seq)
631 {
632 int ret = -1;
633 struct timeval to;
634 const char *attrs[] = {"highestCommittedUSN", NULL};
635 LDAPMessage *res = NULL;
636 char **values = NULL;
637 LDAP *ldp = NULL;
638
639 *seq = DOM_SEQUENCE_NONE;
640
641 /*
642 * Parameterised (5) second timeout on open. This is needed as the
643 * search timeout doesn't seem to apply to doing an open as well. JRA.
644 */
645
646 ldp = ldap_open_with_timeout(server, ss, port, lp_ldap_timeout());
647 if (ldp == NULL)
648 return -1;
649
650 /* Timeout if no response within 20 seconds. */
651 to.tv_sec = 10;
652 to.tv_usec = 0;
653
654 if (ldap_search_st(ldp, "", LDAP_SCOPE_BASE, "(objectclass=*)",
655 discard_const_p(char *, attrs), 0, &to, &res))
656 goto done;
657
658 if (ldap_count_entries(ldp, res) != 1)
659 goto done;
660
661 values = ldap_get_values(ldp, res, "highestCommittedUSN");
662 if (!values || !values[0])
663 goto done;
664
665 *seq = atoi(values[0]);
666 ret = 0;
667
668 done:
669
670 if (values)
671 ldap_value_free(values);
672 if (res)
673 ldap_msgfree(res);
674 if (ldp)
675 ldap_unbind(ldp);
676 return ret;
677 }
678
679 /**********************************************************************
680 Get the sequence number for a Windows AD native mode domain using
681 LDAP queries.
682 **********************************************************************/
683
684 static int get_ldap_sequence_number(struct winbindd_domain *domain, uint32_t *seq)
685 {
686 int ret = -1;
687 char addr[INET6_ADDRSTRLEN];
688
689 print_sockaddr(addr, sizeof(addr), &domain->dcaddr);
690 if ((ret = get_ldap_seq(addr, &domain->dcaddr, LDAP_PORT, seq)) == 0) {
691 DEBUG(3, ("get_ldap_sequence_number: Retrieved sequence "
692 "number for Domain (%s) from DC (%s)\n",
693 domain->name, addr));
694 }
695 return ret;
696 }
697
698 #endif /* HAVE_LDAP */
699
700 /* find the sequence number for a domain */
701 static NTSTATUS msrpc_sequence_number(struct winbindd_domain *domain,
702 uint32_t *pseq)
703 {
704 struct rpc_pipe_client *samr_pipe;
705 struct policy_handle dom_pol;
706 uint32_t seq = DOM_SEQUENCE_NONE;
707 TALLOC_CTX *tmp_ctx;
708 NTSTATUS status;
709
710 DEBUG(3, ("msrpc_sequence_number: fetch sequence_number for %s\n", domain->name));
711
712 if (pseq) {
713 *pseq = DOM_SEQUENCE_NONE;
714 }
715
716 tmp_ctx = talloc_stackframe();
717 if (tmp_ctx == NULL) {
718 return NT_STATUS_NO_MEMORY;
719 }
720
721 if ( !winbindd_can_contact_domain( domain ) ) {
722 DEBUG(10,("sequence_number: No incoming trust for domain %s\n",
723 domain->name));
724 if (pseq) {
725 *pseq = time(NULL);
726 }
727 status = NT_STATUS_OK;
728 goto done;
729 }
730
731 #ifdef HAVE_LDAP
732 if (domain->active_directory) {
733 int rc;
734
735 DEBUG(8,("using get_ldap_seq() to retrieve the "
736 "sequence number\n"));
737
738 rc = get_ldap_sequence_number(domain, &seq);
739 if (rc == 0) {
740 DEBUG(10,("domain_sequence_number: LDAP for "
741 "domain %s is %u\n",
742 domain->name, seq));
743
744 if (pseq) {
745 *pseq = seq;
746 }
747
748 status = NT_STATUS_OK;
749 goto done;
750 }
751
752 DEBUG(10,("domain_sequence_number: failed to get LDAP "
753 "sequence number for domain %s\n",
754 domain->name ));
755 }
756 #endif /* HAVE_LDAP */
757
758 status = cm_connect_sam(domain, tmp_ctx, false, &samr_pipe, &dom_pol);
759 if (!NT_STATUS_IS_OK(status)) {
760 goto done;
761 }
762
763 status = rpc_sequence_number(tmp_ctx,
764 samr_pipe,
765 &dom_pol,
766 domain->name,
767 &seq);
768 if (!NT_STATUS_IS_OK(status)) {
769 goto done;
770 }
771
772 if (pseq) {
773 *pseq = seq;
774 }
775
776 done:
777 TALLOC_FREE(tmp_ctx);
778 return status;
779 }
780
781 /* get a list of trusted domains */
782 static NTSTATUS msrpc_trusted_domains(struct winbindd_domain *domain,
783 TALLOC_CTX *mem_ctx,
784 struct netr_DomainTrustList *ptrust_list)
785 {
786 struct rpc_pipe_client *lsa_pipe;
787 struct policy_handle lsa_policy;
788 struct netr_DomainTrust *trusts = NULL;
789 uint32_t num_trusts = 0;
790 TALLOC_CTX *tmp_ctx;
791 NTSTATUS status;
792
793 DEBUG(3,("msrpc_trusted_domains\n"));
794
795 if (ptrust_list) {
796 ZERO_STRUCTP(ptrust_list);
797 }
798
799 tmp_ctx = talloc_stackframe();
800 if (tmp_ctx == NULL) {
801 return NT_STATUS_NO_MEMORY;
802 }
803
804 status = cm_connect_lsa(domain, tmp_ctx, &lsa_pipe, &lsa_policy);
805 if (!NT_STATUS_IS_OK(status)) {
806 goto done;
807 }
808
809 status = rpc_trusted_domains(tmp_ctx,
810 lsa_pipe,
811 &lsa_policy,
812 &num_trusts,
813 &trusts);
814 if (!NT_STATUS_IS_OK(status)) {
815 goto done;
816 }
817
818 if (ptrust_list) {
819 ptrust_list->count = num_trusts;
820 ptrust_list->array = talloc_move(mem_ctx, &trusts);
821 }
822
823 done:
824 TALLOC_FREE(tmp_ctx);
825 return status;
826 }
827
828 /* find the lockout policy for a domain */
829 static NTSTATUS msrpc_lockout_policy(struct winbindd_domain *domain,
830 TALLOC_CTX *mem_ctx,
831 struct samr_DomInfo12 *lockout_policy)
832 {
833 NTSTATUS status, result;
834 struct rpc_pipe_client *cli;
835 struct policy_handle dom_pol;
836 union samr_DomainInfo *info = NULL;
837 struct dcerpc_binding_handle *b;
838
839 DEBUG(3, ("msrpc_lockout_policy: fetch lockout policy for %s\n", domain->name));
840
841 if ( !winbindd_can_contact_domain( domain ) ) {
842 DEBUG(10,("msrpc_lockout_policy: No incoming trust for domain %s\n",
843 domain->name));
844 return NT_STATUS_NOT_SUPPORTED;
845 }
846
847 status = cm_connect_sam(domain, mem_ctx, false, &cli, &dom_pol);
848 if (!NT_STATUS_IS_OK(status)) {
849 goto done;
850 }
851
852 b = cli->binding_handle;
853
854 status = dcerpc_samr_QueryDomainInfo(b, mem_ctx,
855 &dom_pol,
856 DomainLockoutInformation,
857 &info,
858 &result);
859 if (!NT_STATUS_IS_OK(status)) {
860 goto done;
861 }
862 if (!NT_STATUS_IS_OK(result)) {
863 status = result;
864 goto done;
865 }
866
867 *lockout_policy = info->info12;
868
869 DEBUG(10,("msrpc_lockout_policy: lockout_threshold %d\n",
870 info->info12.lockout_threshold));
871
872 done:
873
874 return status;
875 }
876
877 /* find the password policy for a domain */
878 static NTSTATUS msrpc_password_policy(struct winbindd_domain *domain,
879 TALLOC_CTX *mem_ctx,
880 struct samr_DomInfo1 *password_policy)
881 {
882 NTSTATUS status, result;
883 struct rpc_pipe_client *cli;
884 struct policy_handle dom_pol;
885 union samr_DomainInfo *info = NULL;
886 struct dcerpc_binding_handle *b;
887
888 DEBUG(3, ("msrpc_password_policy: fetch password policy for %s\n",
889 domain->name));
890
891 if ( !winbindd_can_contact_domain( domain ) ) {
892 DEBUG(10,("msrpc_password_policy: No incoming trust for domain %s\n",
893 domain->name));
894 return NT_STATUS_NOT_SUPPORTED;
895 }
896
897 status = cm_connect_sam(domain, mem_ctx, false, &cli, &dom_pol);
898 if (!NT_STATUS_IS_OK(status)) {
899 goto done;
900 }
901
902 b = cli->binding_handle;
903
904 status = dcerpc_samr_QueryDomainInfo(b, mem_ctx,
905 &dom_pol,
906 DomainPasswordInformation,
907 &info,
908 &result);
909 if (!NT_STATUS_IS_OK(status)) {
910 goto done;
911 }
912 if (!NT_STATUS_IS_OK(result)) {
913 goto done;
914 }
915
916 *password_policy = info->info1;
917
918 DEBUG(10,("msrpc_password_policy: min_length_password %d\n",
919 info->info1.min_password_length));
920
921 done:
922
923 return status;
924 }
925
926 NTSTATUS winbindd_lookup_sids(TALLOC_CTX *mem_ctx,
927 struct winbindd_domain *domain,
928 uint32_t num_sids,
929 const struct dom_sid *sids,
930 char ***domains,
931 char ***names,
932 enum lsa_SidType **types)
933 {
934 NTSTATUS status;
935 NTSTATUS result;
936 struct rpc_pipe_client *cli = NULL;
937 struct dcerpc_binding_handle *b = NULL;
938 struct policy_handle lsa_policy;
939 unsigned int orig_timeout;
940 bool use_lookupsids3 = false;
941 bool retried = false;
942
943 connect:
944 status = cm_connect_lsat(domain, mem_ctx, &cli, &lsa_policy);
945 if (!NT_STATUS_IS_OK(status)) {
946 return status;
947 }
948
949 b = cli->binding_handle;
950
951 if (cli->transport->transport == NCACN_IP_TCP) {
952 use_lookupsids3 = true;
953 }
954
955 /*
956 * This call can take a long time
957 * allow the server to time out.
958 * 35 seconds should do it.
959 */
960 orig_timeout = dcerpc_binding_handle_set_timeout(b, 35000);
961
962 status = dcerpc_lsa_lookup_sids_generic(b,
963 mem_ctx,
964 &lsa_policy,
965 num_sids,
966 sids,
967 domains,
968 names,
969 types,
970 use_lookupsids3,
971 &result);
972
973 /* And restore our original timeout. */
974 dcerpc_binding_handle_set_timeout(b, orig_timeout);
975
976 if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED) ||
977 NT_STATUS_EQUAL(status, NT_STATUS_RPC_SEC_PKG_ERROR) ||
978 NT_STATUS_EQUAL(status, NT_STATUS_NETWORK_ACCESS_DENIED)) {
979 /*
980 * This can happen if the schannel key is not
981 * valid anymore, we need to invalidate the
982 * all connections to the dc and reestablish
983 * a netlogon connection first.
984 */
985 invalidate_cm_connection(domain);
986 domain->can_do_ncacn_ip_tcp = domain->active_directory;
987 if (!retried) {
988 retried = true;
989 goto connect;
990 }
991 status = NT_STATUS_ACCESS_DENIED;
992 }
993
994 if (!NT_STATUS_IS_OK(status)) {
995 return status;
996 }
997
998 if (!NT_STATUS_IS_OK(result)) {
999 return result;
1000 }
1001
1002 return NT_STATUS_OK;
1003 }
1004
1005 static NTSTATUS winbindd_lookup_names(TALLOC_CTX *mem_ctx,
1006 struct winbindd_domain *domain,
1007 uint32_t num_names,
1008 const char **names,
1009 const char ***domains,
1010 struct dom_sid **sids,
1011 enum lsa_SidType **types)
1012 {
1013 NTSTATUS status;
1014 NTSTATUS result;
1015 struct rpc_pipe_client *cli = NULL;
1016 struct dcerpc_binding_handle *b = NULL;
1017 struct policy_handle lsa_policy;
1018 unsigned int orig_timeout = 0;
1019 bool use_lookupnames4 = false;
1020 bool retried = false;
1021
1022 connect:
1023 status = cm_connect_lsat(domain, mem_ctx, &cli, &lsa_policy);
1024 if (!NT_STATUS_IS_OK(status)) {
1025 return status;
1026 }
1027
1028 b = cli->binding_handle;
1029
1030 if (cli->transport->transport == NCACN_IP_TCP) {
1031 use_lookupnames4 = true;
1032 }
1033
1034 /*
1035 * This call can take a long time
1036 * allow the server to time out.
1037 * 35 seconds should do it.
1038 */
1039 orig_timeout = dcerpc_binding_handle_set_timeout(b, 35000);
1040
1041 status = dcerpc_lsa_lookup_names_generic(b,
1042 mem_ctx,
1043 &lsa_policy,
1044 num_names,
1045 (const char **) names,
1046 domains,
1047 1,
1048 sids,
1049 types,
1050 use_lookupnames4,
1051 &result);
1052
1053 /* And restore our original timeout. */
1054 dcerpc_binding_handle_set_timeout(b, orig_timeout);
1055
1056 if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED) ||
1057 NT_STATUS_EQUAL(status, NT_STATUS_RPC_SEC_PKG_ERROR) ||
1058 NT_STATUS_EQUAL(status, NT_STATUS_NETWORK_ACCESS_DENIED)) {
1059 /*
1060 * This can happen if the schannel key is not
1061 * valid anymore, we need to invalidate the
1062 * all connections to the dc and reestablish
1063 * a netlogon connection first.
1064 */
1065 invalidate_cm_connection(domain);
1066 if (!retried) {
1067 retried = true;
1068 goto connect;
1069 }
1070 status = NT_STATUS_ACCESS_DENIED;
1071 }
1072
1073 if (!NT_STATUS_IS_OK(status)) {
1074 return status;
1075 }
1076
1077 if (!NT_STATUS_IS_OK(result)) {
1078 return result;
1079 }
1080
1081 return NT_STATUS_OK;
1082 }
1083
1084 /* the rpc backend methods are exposed via this structure */
1085 struct winbindd_methods msrpc_methods = {
1086 False,
1087 msrpc_query_user_list,
1088 msrpc_enum_dom_groups,
1089 msrpc_enum_local_groups,
1090 msrpc_name_to_sid,
1091 msrpc_sid_to_name,
1092 msrpc_rids_to_names,
1093 msrpc_lookup_useraliases,
1094 msrpc_lookup_groupmem,
1095 msrpc_sequence_number,
1096 msrpc_lockout_policy,
1097 msrpc_password_policy,
1098 msrpc_trusted_domains,
1099 };
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