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WHATSNEW: Update changes since 3.6.0rc1.
[Samba.git] / source3 / winbindd / winbindd_msrpc.c
blob921cdb5a8bc3cd36076df396e8765a36d2f0bb0b
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
39 /* Query display info for a domain. This returns enough information plus a
40 bit extra to give an overview of domain users for the User Manager
41 application. */
42 static NTSTATUS msrpc_query_user_list(struct winbindd_domain *domain,
43 TALLOC_CTX *mem_ctx,
44 uint32_t *pnum_info,
45 struct wbint_userinfo **pinfo)
46 {
47 struct rpc_pipe_client *samr_pipe = NULL;
48 struct policy_handle dom_pol;
49 struct wbint_userinfo *info = NULL;
50 uint32_t num_info = 0;
51 TALLOC_CTX *tmp_ctx;
52 NTSTATUS status;
53
54 DEBUG(3, ("msrpc_query_user_list\n"));
55
56 if (pnum_info) {
57 *pnum_info = 0;
58 }
59
60 tmp_ctx = talloc_stackframe();
61 if (tmp_ctx == NULL) {
62 return NT_STATUS_NO_MEMORY;
63 }
64
65 if ( !winbindd_can_contact_domain( domain ) ) {
66 DEBUG(10,("query_user_list: No incoming trust for domain %s\n",
67 domain->name));
68 status = NT_STATUS_OK;
69 goto done;
70 }
71
72 status = cm_connect_sam(domain, tmp_ctx, &samr_pipe, &dom_pol);
73 if (!NT_STATUS_IS_OK(status)) {
74 goto done;
75 }
76
77 status = rpc_query_user_list(tmp_ctx,
78 samr_pipe,
79 &dom_pol,
80 &domain->sid,
81 &num_info,
82 &info);
83 if (!NT_STATUS_IS_OK(status)) {
84 goto done;
85 }
86
87 if (pnum_info) {
88 *pnum_info = num_info;
89 }
90
91 if (pinfo) {
92 *pinfo = talloc_move(mem_ctx, &info);
93 }
94
95 done:
96 TALLOC_FREE(tmp_ctx);
97 return status;
98 }
99
100 /* list all domain groups */
101 static NTSTATUS msrpc_enum_dom_groups(struct winbindd_domain *domain,
102 TALLOC_CTX *mem_ctx,
103 uint32_t *pnum_info,
104 struct wb_acct_info **pinfo)
105 {
106 struct rpc_pipe_client *samr_pipe;
107 struct policy_handle dom_pol;
108 struct wb_acct_info *info = NULL;
109 uint32_t num_info = 0;
110 TALLOC_CTX *tmp_ctx;
111 NTSTATUS status;
112
113 DEBUG(3,("msrpc_enum_dom_groups\n"));
114
115 if (pnum_info) {
116 *pnum_info = 0;
117 }
118
119 tmp_ctx = talloc_stackframe();
120 if (tmp_ctx == NULL) {
121 return NT_STATUS_NO_MEMORY;
122 }
123
124 if ( !winbindd_can_contact_domain( domain ) ) {
125 DEBUG(10,("enum_domain_groups: No incoming trust for domain %s\n",
126 domain->name));
127 status = NT_STATUS_OK;
128 goto done;
129 }
130
131 status = cm_connect_sam(domain, tmp_ctx, &samr_pipe, &dom_pol);
132 if (!NT_STATUS_IS_OK(status)) {
133 goto done;
134 }
135
136 status = rpc_enum_dom_groups(tmp_ctx,
137 samr_pipe,
138 &dom_pol,
139 &num_info,
140 &info);
141 if (!NT_STATUS_IS_OK(status)) {
142 goto done;
143 }
144
145 if (pnum_info) {
146 *pnum_info = num_info;
147 }
148
149 if (pinfo) {
150 *pinfo = talloc_move(mem_ctx, &info);
151 }
152
153 done:
154 TALLOC_FREE(tmp_ctx);
155 return status;
156 }
157
158 /* List all domain groups */
159
160 static NTSTATUS msrpc_enum_local_groups(struct winbindd_domain *domain,
161 TALLOC_CTX *mem_ctx,
162 uint32_t *pnum_info,
163 struct wb_acct_info **pinfo)
164 {
165 struct rpc_pipe_client *samr_pipe;
166 struct policy_handle dom_pol;
167 struct wb_acct_info *info = NULL;
168 uint32_t num_info = 0;
169 TALLOC_CTX *tmp_ctx;
170 NTSTATUS status;
171
172 DEBUG(3,("msrpc_enum_local_groups\n"));
173
174 if (pnum_info) {
175 *pnum_info = 0;
176 }
177
178 tmp_ctx = talloc_stackframe();
179 if (tmp_ctx == NULL) {
180 return NT_STATUS_NO_MEMORY;
181 }
182
183 if ( !winbindd_can_contact_domain( domain ) ) {
184 DEBUG(10,("enum_local_groups: No incoming trust for domain %s\n",
185 domain->name));
186 status = NT_STATUS_OK;
187 goto done;
188 }
189
190 status = cm_connect_sam(domain, tmp_ctx, &samr_pipe, &dom_pol);
191 if (!NT_STATUS_IS_OK(status)) {
192 goto done;
193 }
194
195 status = rpc_enum_local_groups(mem_ctx,
196 samr_pipe,
197 &dom_pol,
198 &num_info,
199 &info);
200 if (!NT_STATUS_IS_OK(status)) {
201 goto done;
202 }
203
204 if (pnum_info) {
205 *pnum_info = num_info;
206 }
207
208 if (pinfo) {
209 *pinfo = talloc_move(mem_ctx, &info);
210 }
211
212 done:
213 TALLOC_FREE(tmp_ctx);
214 return status;
215 }
216
217 /* convert a single name to a sid in a domain */
218 static NTSTATUS msrpc_name_to_sid(struct winbindd_domain *domain,
219 TALLOC_CTX *mem_ctx,
220 const char *domain_name,
221 const char *name,
222 uint32_t flags,
223 struct dom_sid *sid,
224 enum lsa_SidType *type)
225 {
226 NTSTATUS result;
227 struct dom_sid *sids = NULL;
228 enum lsa_SidType *types = NULL;
229 char *full_name = NULL;
230 NTSTATUS name_map_status = NT_STATUS_UNSUCCESSFUL;
231 char *mapped_name = NULL;
232
233 if (name == NULL || *name=='\0') {
234 full_name = talloc_asprintf(mem_ctx, "%s", domain_name);
235 } else if (domain_name == NULL || *domain_name == '\0') {
236 full_name = talloc_asprintf(mem_ctx, "%s", name);
237 } else {
238 full_name = talloc_asprintf(mem_ctx, "%s\\%s", domain_name, name);
239 }
240 if (!full_name) {
241 DEBUG(0, ("talloc_asprintf failed!\n"));
242 return NT_STATUS_NO_MEMORY;
243 }
244
245 DEBUG(3, ("msrpc_name_to_sid: name=%s\n", full_name));
246
247 name_map_status = normalize_name_unmap(mem_ctx, full_name,
248 &mapped_name);
249
250 /* Reset the full_name pointer if we mapped anytthing */
251
252 if (NT_STATUS_IS_OK(name_map_status) ||
253 NT_STATUS_EQUAL(name_map_status, NT_STATUS_FILE_RENAMED))
254 {
255 full_name = mapped_name;
256 }
257
258 DEBUG(3,("name_to_sid [rpc] %s for domain %s\n",
259 full_name?full_name:"", domain_name ));
260
261 result = winbindd_lookup_names(mem_ctx, domain, 1,
262 (const char **)&full_name, NULL,
263 &sids, &types);
264 if (!NT_STATUS_IS_OK(result))
265 return result;
266
267 /* Return rid and type if lookup successful */
268
269 sid_copy(sid, &sids[0]);
270 *type = types[0];
271
272 return NT_STATUS_OK;
273 }
274
275 /*
276 convert a domain SID to a user or group name
277 */
278 static NTSTATUS msrpc_sid_to_name(struct winbindd_domain *domain,
279 TALLOC_CTX *mem_ctx,
280 const struct dom_sid *sid,
281 char **domain_name,
282 char **name,
283 enum lsa_SidType *type)
284 {
285 char **domains;
286 char **names;
287 enum lsa_SidType *types = NULL;
288 NTSTATUS result;
289 NTSTATUS name_map_status = NT_STATUS_UNSUCCESSFUL;
290 char *mapped_name = NULL;
291
292 DEBUG(3, ("msrpc_sid_to_name: %s for domain %s\n", sid_string_dbg(sid),
293 domain->name ));
294
295 result = winbindd_lookup_sids(mem_ctx,
296 domain,
297 1,
298 sid,
299 &domains,
300 &names,
301 &types);
302 if (!NT_STATUS_IS_OK(result)) {
303 DEBUG(2,("msrpc_sid_to_name: failed to lookup sids: %s\n",
304 nt_errstr(result)));
305 return result;
306 }
307
308
309 *type = (enum lsa_SidType)types[0];
310 *domain_name = domains[0];
311 *name = names[0];
312
313 DEBUG(5,("Mapped sid to [%s]\\[%s]\n", domains[0], *name));
314
315 name_map_status = normalize_name_map(mem_ctx, domain, *name,
316 &mapped_name);
317 if (NT_STATUS_IS_OK(name_map_status) ||
318 NT_STATUS_EQUAL(name_map_status, NT_STATUS_FILE_RENAMED))
319 {
320 *name = mapped_name;
321 DEBUG(5,("returning mapped name -- %s\n", *name));
322 }
323
324 return NT_STATUS_OK;
325 }
326
327 static NTSTATUS msrpc_rids_to_names(struct winbindd_domain *domain,
328 TALLOC_CTX *mem_ctx,
329 const struct dom_sid *sid,
330 uint32 *rids,
331 size_t num_rids,
332 char **domain_name,
333 char ***names,
334 enum lsa_SidType **types)
335 {
336 char **domains;
337 NTSTATUS result;
338 struct dom_sid *sids;
339 size_t i;
340 char **ret_names;
341
342 DEBUG(3, ("msrpc_rids_to_names: domain %s\n", domain->name ));
343
344 if (num_rids) {
345 sids = TALLOC_ARRAY(mem_ctx, struct dom_sid, num_rids);
346 if (sids == NULL) {
347 return NT_STATUS_NO_MEMORY;
348 }
349 } else {
350 sids = NULL;
351 }
352
353 for (i=0; i<num_rids; i++) {
354 if (!sid_compose(&sids[i], sid, rids[i])) {
355 return NT_STATUS_INTERNAL_ERROR;
356 }
357 }
358
359 result = winbindd_lookup_sids(mem_ctx,
360 domain,
361 num_rids,
362 sids,
363 &domains,
364 names,
365 types);
366
367 if (!NT_STATUS_IS_OK(result) &&
368 !NT_STATUS_EQUAL(result, STATUS_SOME_UNMAPPED)) {
369 return result;
370 }
371
372 ret_names = *names;
373 for (i=0; i<num_rids; i++) {
374 NTSTATUS name_map_status = NT_STATUS_UNSUCCESSFUL;
375 char *mapped_name = NULL;
376
377 if ((*types)[i] != SID_NAME_UNKNOWN) {
378 name_map_status = normalize_name_map(mem_ctx,
379 domain,
380 ret_names[i],
381 &mapped_name);
382 if (NT_STATUS_IS_OK(name_map_status) ||
383 NT_STATUS_EQUAL(name_map_status, NT_STATUS_FILE_RENAMED))
384 {
385 ret_names[i] = mapped_name;
386 }
387
388 *domain_name = domains[i];
389 }
390 }
391
392 return result;
393 }
394
395 /* Lookup user information from a rid or username. */
396 static NTSTATUS msrpc_query_user(struct winbindd_domain *domain,
397 TALLOC_CTX *mem_ctx,
398 const struct dom_sid *user_sid,
399 struct wbint_userinfo *user_info)
400 {
401 struct rpc_pipe_client *samr_pipe;
402 struct policy_handle dom_pol;
403 struct netr_SamInfo3 *user;
404 TALLOC_CTX *tmp_ctx;
405 NTSTATUS status;
406
407 DEBUG(3,("msrpc_query_user sid=%s\n", sid_string_dbg(user_sid)));
408
409 tmp_ctx = talloc_stackframe();
410 if (tmp_ctx == NULL) {
411 return NT_STATUS_NO_MEMORY;
412 }
413
414 if (user_info) {
415 user_info->homedir = NULL;
416 user_info->shell = NULL;
417 user_info->primary_gid = (gid_t)-1;
418 }
419
420 /* try netsamlogon cache first */
421 user = netsamlogon_cache_get(tmp_ctx, user_sid);
422 if (user != NULL) {
423 DEBUG(5,("msrpc_query_user: Cache lookup succeeded for %s\n",
424 sid_string_dbg(user_sid)));
425
426 sid_compose(&user_info->user_sid, &domain->sid, user->base.rid);
427 sid_compose(&user_info->group_sid, &domain->sid,
428 user->base.primary_gid);
429
430 user_info->acct_name = talloc_strdup(user_info,
431 user->base.account_name.string);
432 user_info->full_name = talloc_strdup(user_info,
433 user->base.full_name.string);
434
435 status = NT_STATUS_OK;
436 goto done;
437 }
438
439 if ( !winbindd_can_contact_domain( domain ) ) {
440 DEBUG(10,("query_user: No incoming trust for domain %s\n",
441 domain->name));
442 /* Tell the cache manager not to remember this one */
443 status = NT_STATUS_SYNCHRONIZATION_REQUIRED;
444 goto done;
445 }
446
447 /* no cache; hit the wire */
448 status = cm_connect_sam(domain, tmp_ctx, &samr_pipe, &dom_pol);
449 if (!NT_STATUS_IS_OK(status)) {
450 goto done;
451 }
452
453 status = rpc_query_user(tmp_ctx,
454 samr_pipe,
455 &dom_pol,
456 &domain->sid,
457 user_sid,
458 user_info);
459
460 done:
461 TALLOC_FREE(tmp_ctx);
462 return status;
463 }
464
465 /* Lookup groups a user is a member of. I wish Unix had a call like this! */
466 static NTSTATUS msrpc_lookup_usergroups(struct winbindd_domain *domain,
467 TALLOC_CTX *mem_ctx,
468 const struct dom_sid *user_sid,
469 uint32_t *pnum_groups,
470 struct dom_sid **puser_grpsids)
471 {
472 struct rpc_pipe_client *samr_pipe;
473 struct policy_handle dom_pol;
474 struct dom_sid *user_grpsids = NULL;
475 uint32_t num_groups = 0;
476 TALLOC_CTX *tmp_ctx;
477 NTSTATUS status;
478
479 DEBUG(3,("msrpc_lookup_usergroups sid=%s\n", sid_string_dbg(user_sid)));
480
481 *pnum_groups = 0;
482
483 tmp_ctx = talloc_stackframe();
484 if (tmp_ctx == NULL) {
485 return NT_STATUS_NO_MEMORY;
486 }
487
488 /* Check if we have a cached user_info_3 */
489 status = lookup_usergroups_cached(domain,
490 tmp_ctx,
491 user_sid,
492 &num_groups,
493 &user_grpsids);
494 if (NT_STATUS_IS_OK(status)) {
495 goto cached;
496 }
497
498 if ( !winbindd_can_contact_domain( domain ) ) {
499 DEBUG(10,("lookup_usergroups: No incoming trust for domain %s\n",
500 domain->name));
501
502 /* Tell the cache manager not to remember this one */
503 status = NT_STATUS_SYNCHRONIZATION_REQUIRED;
504 goto done;
505 }
506
507 /* no cache; hit the wire */
508 status = cm_connect_sam(domain, tmp_ctx, &samr_pipe, &dom_pol);
509 if (!NT_STATUS_IS_OK(status)) {
510 goto done;
511 }
512
513 status = rpc_lookup_usergroups(tmp_ctx,
514 samr_pipe,
515 &dom_pol,
516 &domain->sid,
517 user_sid,
518 &num_groups,
519 &user_grpsids);
520 if (!NT_STATUS_IS_OK(status)) {
521 goto done;
522 }
523
524 cached:
525 *pnum_groups = num_groups;
526
527 if (puser_grpsids) {
528 *puser_grpsids = talloc_move(mem_ctx, &user_grpsids);
529 }
530
531 done:
532 TALLOC_FREE(tmp_ctx);
533 return status;
534 return NT_STATUS_OK;
535 }
536
537 #define MAX_SAM_ENTRIES_W2K 0x400 /* 1024 */
538
539 static NTSTATUS msrpc_lookup_useraliases(struct winbindd_domain *domain,
540 TALLOC_CTX *mem_ctx,
541 uint32 num_sids, const struct dom_sid *sids,
542 uint32 *pnum_aliases,
543 uint32 **palias_rids)
544 {
545 struct rpc_pipe_client *samr_pipe;
546 struct policy_handle dom_pol;
547 uint32_t num_aliases = 0;
548 uint32_t *alias_rids = NULL;
549 TALLOC_CTX *tmp_ctx;
550 NTSTATUS status;
551
552 DEBUG(3,("msrpc_lookup_useraliases\n"));
553
554 if (pnum_aliases) {
555 *pnum_aliases = 0;
556 }
557
558 tmp_ctx = talloc_stackframe();
559 if (tmp_ctx == NULL) {
560 return NT_STATUS_NO_MEMORY;
561 }
562
563 if (!winbindd_can_contact_domain(domain)) {
564 DEBUG(10,("msrpc_lookup_useraliases: No incoming trust for domain %s\n",
565 domain->name));
566 /* Tell the cache manager not to remember this one */
567 status = NT_STATUS_SYNCHRONIZATION_REQUIRED;
568 goto done;
569 }
570
571 status = cm_connect_sam(domain, tmp_ctx, &samr_pipe, &dom_pol);
572 if (!NT_STATUS_IS_OK(status)) {
573 goto done;
574 }
575
576 status = rpc_lookup_useraliases(tmp_ctx,
577 samr_pipe,
578 &dom_pol,
579 num_sids,
580 sids,
581 &num_aliases,
582 &alias_rids);
583 if (!NT_STATUS_IS_OK(status)) {
584 goto done;
585 }
586
587 if (pnum_aliases) {
588 *pnum_aliases = num_aliases;
589 }
590
591 if (palias_rids) {
592 *palias_rids = talloc_move(mem_ctx, &alias_rids);
593 }
594
595 done:
596 TALLOC_FREE(tmp_ctx);
597 return status;
598 }
599
600
601 /* Lookup group membership given a rid. */
602 static NTSTATUS msrpc_lookup_groupmem(struct winbindd_domain *domain,
603 TALLOC_CTX *mem_ctx,
604 const struct dom_sid *group_sid,
605 enum lsa_SidType type,
606 uint32_t *num_names,
607 struct dom_sid **sid_mem,
608 char ***names,
609 uint32_t **name_types)
610 {
611 NTSTATUS status, result;
612 uint32 i, total_names = 0;
613 struct policy_handle dom_pol, group_pol;
614 uint32 des_access = SEC_FLAG_MAXIMUM_ALLOWED;
615 uint32 *rid_mem = NULL;
616 uint32 group_rid;
617 unsigned int j, r;
618 struct rpc_pipe_client *cli;
619 unsigned int orig_timeout;
620 struct samr_RidAttrArray *rids = NULL;
621 struct dcerpc_binding_handle *b;
622
623 DEBUG(3,("msrpc_lookup_groupmem: %s sid=%s\n", domain->name,
624 sid_string_dbg(group_sid)));
625
626 if ( !winbindd_can_contact_domain( domain ) ) {
627 DEBUG(10,("lookup_groupmem: No incoming trust for domain %s\n",
628 domain->name));
629 return NT_STATUS_OK;
630 }
631
632 if (!sid_peek_check_rid(&domain->sid, group_sid, &group_rid))
633 return NT_STATUS_UNSUCCESSFUL;
634
635 *num_names = 0;
636
637 result = cm_connect_sam(domain, mem_ctx, &cli, &dom_pol);
638 if (!NT_STATUS_IS_OK(result))
639 return result;
640
641 b = cli->binding_handle;
642
643 status = dcerpc_samr_OpenGroup(b, mem_ctx,
644 &dom_pol,
645 des_access,
646 group_rid,
647 &group_pol,
648 &result);
649 if (!NT_STATUS_IS_OK(status)) {
650 return status;
651 }
652 if (!NT_STATUS_IS_OK(result)) {
653 return result;
654 }
655
656 /* Step #1: Get a list of user rids that are the members of the
657 group. */
658
659 /* This call can take a long time - allow the server to time out.
660 35 seconds should do it. */
661
662 orig_timeout = rpccli_set_timeout(cli, 35000);
663
664 status = dcerpc_samr_QueryGroupMember(b, mem_ctx,
665 &group_pol,
666 &rids,
667 &result);
668
669 /* And restore our original timeout. */
670 rpccli_set_timeout(cli, orig_timeout);
671
672 {
673 NTSTATUS _result;
674 dcerpc_samr_Close(b, mem_ctx, &group_pol, &_result);
675 }
676
677 if (!NT_STATUS_IS_OK(status)) {
678 return status;
679 }
680
681 if (!NT_STATUS_IS_OK(result)) {
682 return result;
683 }
684
685 if (!rids || !rids->count) {
686 names = NULL;
687 name_types = NULL;
688 sid_mem = NULL;
689 return NT_STATUS_OK;
690 }
691
692 *num_names = rids->count;
693 rid_mem = rids->rids;
694
695 /* Step #2: Convert list of rids into list of usernames. Do this
696 in bunches of ~1000 to avoid crashing NT4. It looks like there
697 is a buffer overflow or something like that lurking around
698 somewhere. */
699
700 #define MAX_LOOKUP_RIDS 900
701
702 *names = TALLOC_ZERO_ARRAY(mem_ctx, char *, *num_names);
703 *name_types = TALLOC_ZERO_ARRAY(mem_ctx, uint32, *num_names);
704 *sid_mem = TALLOC_ZERO_ARRAY(mem_ctx, struct dom_sid, *num_names);
705
706 for (j=0;j<(*num_names);j++)
707 sid_compose(&(*sid_mem)[j], &domain->sid, rid_mem[j]);
708
709 if (*num_names>0 && (!*names || !*name_types))
710 return NT_STATUS_NO_MEMORY;
711
712 for (i = 0; i < *num_names; i += MAX_LOOKUP_RIDS) {
713 int num_lookup_rids = MIN(*num_names - i, MAX_LOOKUP_RIDS);
714 struct lsa_Strings tmp_names;
715 struct samr_Ids tmp_types;
716
717 /* Lookup a chunk of rids */
718
719 status = dcerpc_samr_LookupRids(b, mem_ctx,
720 &dom_pol,
721 num_lookup_rids,
722 &rid_mem[i],
723 &tmp_names,
724 &tmp_types,
725 &result);
726 if (!NT_STATUS_IS_OK(status)) {
727 return status;
728 }
729
730 /* see if we have a real error (and yes the
731 STATUS_SOME_UNMAPPED is the one returned from 2k) */
732
733 if (!NT_STATUS_IS_OK(result) &&
734 !NT_STATUS_EQUAL(result, STATUS_SOME_UNMAPPED))
735 return result;
736
737 /* Copy result into array. The talloc system will take
738 care of freeing the temporary arrays later on. */
739
740 if (tmp_names.count != tmp_types.count) {
741 return NT_STATUS_UNSUCCESSFUL;
742 }
743
744 for (r=0; r<tmp_names.count; r++) {
745 if (tmp_types.ids[r] == SID_NAME_UNKNOWN) {
746 continue;
747 }
748 (*names)[total_names] = fill_domain_username_talloc(
749 mem_ctx, domain->name,
750 tmp_names.names[r].string, true);
751 (*name_types)[total_names] = tmp_types.ids[r];
752 total_names += 1;
753 }
754 }
755
756 *num_names = total_names;
757
758 return NT_STATUS_OK;
759 }
760
761 #ifdef HAVE_LDAP
762
763 #include <ldap.h>
764
765 static int get_ldap_seq(const char *server, int port, uint32 *seq)
766 {
767 int ret = -1;
768 struct timeval to;
769 const char *attrs[] = {"highestCommittedUSN", NULL};
770 LDAPMessage *res = NULL;
771 char **values = NULL;
772 LDAP *ldp = NULL;
773
774 *seq = DOM_SEQUENCE_NONE;
775
776 /*
777 * Parameterised (5) second timeout on open. This is needed as the
778 * search timeout doesn't seem to apply to doing an open as well. JRA.
779 */
780
781 ldp = ldap_open_with_timeout(server, port, lp_ldap_timeout());
782 if (ldp == NULL)
783 return -1;
784
785 /* Timeout if no response within 20 seconds. */
786 to.tv_sec = 10;
787 to.tv_usec = 0;
788
789 if (ldap_search_st(ldp, "", LDAP_SCOPE_BASE, "(objectclass=*)",
790 CONST_DISCARD(char **, attrs), 0, &to, &res))
791 goto done;
792
793 if (ldap_count_entries(ldp, res) != 1)
794 goto done;
795
796 values = ldap_get_values(ldp, res, "highestCommittedUSN");
797 if (!values || !values[0])
798 goto done;
799
800 *seq = atoi(values[0]);
801 ret = 0;
802
803 done:
804
805 if (values)
806 ldap_value_free(values);
807 if (res)
808 ldap_msgfree(res);
809 if (ldp)
810 ldap_unbind(ldp);
811 return ret;
812 }
813
814 /**********************************************************************
815 Get the sequence number for a Windows AD native mode domain using
816 LDAP queries.
817 **********************************************************************/
818
819 static int get_ldap_sequence_number(struct winbindd_domain *domain, uint32 *seq)
820 {
821 int ret = -1;
822 char addr[INET6_ADDRSTRLEN];
823
824 print_sockaddr(addr, sizeof(addr), &domain->dcaddr);
825 if ((ret = get_ldap_seq(addr, LDAP_PORT, seq)) == 0) {
826 DEBUG(3, ("get_ldap_sequence_number: Retrieved sequence "
827 "number for Domain (%s) from DC (%s)\n",
828 domain->name, addr));
829 }
830 return ret;
831 }
832
833 #endif /* HAVE_LDAP */
834
835 /* find the sequence number for a domain */
836 static NTSTATUS msrpc_sequence_number(struct winbindd_domain *domain,
837 uint32_t *pseq)
838 {
839 struct rpc_pipe_client *samr_pipe;
840 struct policy_handle dom_pol;
841 uint32_t seq;
842 TALLOC_CTX *tmp_ctx;
843 NTSTATUS status;
844
845 DEBUG(3, ("msrpc_sequence_number: fetch sequence_number for %s\n", domain->name));
846
847 if (pseq) {
848 *pseq = DOM_SEQUENCE_NONE;
849 }
850
851 tmp_ctx = talloc_stackframe();
852 if (tmp_ctx == NULL) {
853 return NT_STATUS_NO_MEMORY;
854 }
855
856 if ( !winbindd_can_contact_domain( domain ) ) {
857 DEBUG(10,("sequence_number: No incoming trust for domain %s\n",
858 domain->name));
859 if (pseq) {
860 *pseq = time(NULL);
861 }
862 status = NT_STATUS_OK;
863 goto done;
864 }
865
866 #ifdef HAVE_LDAP
867 if (domain->active_directory) {
868 int rc;
869
870 DEBUG(8,("using get_ldap_seq() to retrieve the "
871 "sequence number\n"));
872
873 rc = get_ldap_sequence_number(domain, &seq);
874 if (rc == 0) {
875 DEBUG(10,("domain_sequence_number: LDAP for "
876 "domain %s is %u\n",
877 domain->name, seq));
878
879 if (pseq) {
880 *pseq = seq;
881 }
882
883 status = NT_STATUS_OK;
884 goto done;
885 }
886
887 DEBUG(10,("domain_sequence_number: failed to get LDAP "
888 "sequence number for domain %s\n",
889 domain->name ));
890 }
891 #endif /* HAVE_LDAP */
892
893 status = cm_connect_sam(domain, tmp_ctx, &samr_pipe, &dom_pol);
894 if (!NT_STATUS_IS_OK(status)) {
895 goto done;
896 }
897
898 status = rpc_sequence_number(tmp_ctx,
899 samr_pipe,
900 &dom_pol,
901 domain->name,
902 &seq);
903 if (!NT_STATUS_IS_OK(status)) {
904 goto done;
905 }
906
907 if (pseq) {
908 *pseq = seq;
909 }
910
911 done:
912 TALLOC_FREE(tmp_ctx);
913 return status;
914 }
915
916 /* get a list of trusted domains */
917 static NTSTATUS msrpc_trusted_domains(struct winbindd_domain *domain,
918 TALLOC_CTX *mem_ctx,
919 struct netr_DomainTrustList *ptrust_list)
920 {
921 struct rpc_pipe_client *lsa_pipe;
922 struct policy_handle lsa_policy;
923 struct netr_DomainTrust *trusts = NULL;
924 uint32_t num_trusts = 0;
925 TALLOC_CTX *tmp_ctx;
926 NTSTATUS status;
927
928 DEBUG(3,("msrpc_trusted_domains\n"));
929
930 if (ptrust_list) {
931 ZERO_STRUCTP(ptrust_list);
932 }
933
934 tmp_ctx = talloc_stackframe();
935 if (tmp_ctx == NULL) {
936 return NT_STATUS_NO_MEMORY;
937 }
938
939 status = cm_connect_lsa(domain, tmp_ctx, &lsa_pipe, &lsa_policy);
940 if (!NT_STATUS_IS_OK(status))
941 return status;
942
943 status = rpc_trusted_domains(tmp_ctx,
944 lsa_pipe,
945 &lsa_policy,
946 &num_trusts,
947 &trusts);
948 if (!NT_STATUS_IS_OK(status)) {
949 goto done;
950 }
951
952 if (ptrust_list) {
953 ptrust_list->count = num_trusts;
954 ptrust_list->array = talloc_move(mem_ctx, &trusts);
955 }
956
957 done:
958 TALLOC_FREE(tmp_ctx);
959 return status;
960 }
961
962 /* find the lockout policy for a domain */
963 static NTSTATUS msrpc_lockout_policy(struct winbindd_domain *domain,
964 TALLOC_CTX *mem_ctx,
965 struct samr_DomInfo12 *lockout_policy)
966 {
967 NTSTATUS status, result;
968 struct rpc_pipe_client *cli;
969 struct policy_handle dom_pol;
970 union samr_DomainInfo *info = NULL;
971 struct dcerpc_binding_handle *b;
972
973 DEBUG(3, ("msrpc_lockout_policy: fetch lockout policy for %s\n", domain->name));
974
975 if ( !winbindd_can_contact_domain( domain ) ) {
976 DEBUG(10,("msrpc_lockout_policy: No incoming trust for domain %s\n",
977 domain->name));
978 return NT_STATUS_NOT_SUPPORTED;
979 }
980
981 status = cm_connect_sam(domain, mem_ctx, &cli, &dom_pol);
982 if (!NT_STATUS_IS_OK(status)) {
983 goto done;
984 }
985
986 b = cli->binding_handle;
987
988 status = dcerpc_samr_QueryDomainInfo(b, mem_ctx,
989 &dom_pol,
990 DomainLockoutInformation,
991 &info,
992 &result);
993 if (!NT_STATUS_IS_OK(status)) {
994 goto done;
995 }
996 if (!NT_STATUS_IS_OK(result)) {
997 status = result;
998 goto done;
999 }
1000
1001 *lockout_policy = info->info12;
1002
1003 DEBUG(10,("msrpc_lockout_policy: lockout_threshold %d\n",
1004 info->info12.lockout_threshold));
1005
1006 done:
1007
1008 return status;
1009 }
1010
1011 /* find the password policy for a domain */
1012 static NTSTATUS msrpc_password_policy(struct winbindd_domain *domain,
1013 TALLOC_CTX *mem_ctx,
1014 struct samr_DomInfo1 *password_policy)
1015 {
1016 NTSTATUS status, result;
1017 struct rpc_pipe_client *cli;
1018 struct policy_handle dom_pol;
1019 union samr_DomainInfo *info = NULL;
1020 struct dcerpc_binding_handle *b;
1021
1022 DEBUG(3, ("msrpc_password_policy: fetch password policy for %s\n",
1023 domain->name));
1024
1025 if ( !winbindd_can_contact_domain( domain ) ) {
1026 DEBUG(10,("msrpc_password_policy: No incoming trust for domain %s\n",
1027 domain->name));
1028 return NT_STATUS_NOT_SUPPORTED;
1029 }
1030
1031 status = cm_connect_sam(domain, mem_ctx, &cli, &dom_pol);
1032 if (!NT_STATUS_IS_OK(status)) {
1033 goto done;
1034 }
1035
1036 b = cli->binding_handle;
1037
1038 status = dcerpc_samr_QueryDomainInfo(b, mem_ctx,
1039 &dom_pol,
1040 DomainPasswordInformation,
1041 &info,
1042 &result);
1043 if (!NT_STATUS_IS_OK(status)) {
1044 goto done;
1045 }
1046 if (!NT_STATUS_IS_OK(result)) {
1047 goto done;
1048 }
1049
1050 *password_policy = info->info1;
1051
1052 DEBUG(10,("msrpc_password_policy: min_length_password %d\n",
1053 info->info1.min_password_length));
1054
1055 done:
1056
1057 return status;
1058 }
1059
1060 typedef NTSTATUS (*lookup_sids_fn_t)(struct dcerpc_binding_handle *h,
1061 TALLOC_CTX *mem_ctx,
1062 struct policy_handle *pol,
1063 int num_sids,
1064 const struct dom_sid *sids,
1065 char ***pdomains,
1066 char ***pnames,
1067 enum lsa_SidType **ptypes,
1068 NTSTATUS *result);
1069
1070 NTSTATUS winbindd_lookup_sids(TALLOC_CTX *mem_ctx,
1071 struct winbindd_domain *domain,
1072 uint32_t num_sids,
1073 const struct dom_sid *sids,
1074 char ***domains,
1075 char ***names,
1076 enum lsa_SidType **types)
1077 {
1078 NTSTATUS status;
1079 NTSTATUS result;
1080 struct rpc_pipe_client *cli = NULL;
1081 struct dcerpc_binding_handle *b = NULL;
1082 struct policy_handle lsa_policy;
1083 unsigned int orig_timeout;
1084 lookup_sids_fn_t lookup_sids_fn = dcerpc_lsa_lookup_sids;
1085
1086 if (domain->can_do_ncacn_ip_tcp) {
1087 status = cm_connect_lsa_tcp(domain, mem_ctx, &cli);
1088 if (NT_STATUS_IS_OK(status)) {
1089 lookup_sids_fn = dcerpc_lsa_lookup_sids3;
1090 goto lookup;
1091 }
1092 domain->can_do_ncacn_ip_tcp = false;
1093 }
1094 status = cm_connect_lsa(domain, mem_ctx, &cli, &lsa_policy);
1095
1096 if (!NT_STATUS_IS_OK(status)) {
1097 return status;
1098 }
1099
1100 lookup:
1101 b = cli->binding_handle;
1102
1103 /*
1104 * This call can take a long time
1105 * allow the server to time out.
1106 * 35 seconds should do it.
1107 */
1108 orig_timeout = dcerpc_binding_handle_set_timeout(b, 35000);
1109
1110 status = lookup_sids_fn(b,
1111 mem_ctx,
1112 &lsa_policy,
1113 num_sids,
1114 sids,
1115 domains,
1116 names,
1117 types,
1118 &result);
1119
1120 /* And restore our original timeout. */
1121 dcerpc_binding_handle_set_timeout(b, orig_timeout);
1122
1123 if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED) ||
1124 NT_STATUS_EQUAL(status, NT_STATUS_RPC_SEC_PKG_ERROR)) {
1125 /*
1126 * This can happen if the schannel key is not
1127 * valid anymore, we need to invalidate the
1128 * all connections to the dc and reestablish
1129 * a netlogon connection first.
1130 */
1131 invalidate_cm_connection(&domain->conn);
1132 status = NT_STATUS_ACCESS_DENIED;
1133 }
1134
1135 if (!NT_STATUS_IS_OK(status)) {
1136 return status;
1137 }
1138
1139 if (!NT_STATUS_IS_OK(result)) {
1140 return result;
1141 }
1142
1143 return NT_STATUS_OK;
1144 }
1145
1146 typedef NTSTATUS (*lookup_names_fn_t)(struct dcerpc_binding_handle *h,
1147 TALLOC_CTX *mem_ctx,
1148 struct policy_handle *pol,
1149 uint32_t num_names,
1150 const char **names,
1151 const char ***dom_names,
1152 enum lsa_LookupNamesLevel level,
1153 struct dom_sid **sids,
1154 enum lsa_SidType **types,
1155 NTSTATUS *result);
1156
1157 NTSTATUS winbindd_lookup_names(TALLOC_CTX *mem_ctx,
1158 struct winbindd_domain *domain,
1159 uint32_t num_names,
1160 const char **names,
1161 const char ***domains,
1162 struct dom_sid **sids,
1163 enum lsa_SidType **types)
1164 {
1165 NTSTATUS status;
1166 NTSTATUS result;
1167 struct rpc_pipe_client *cli = NULL;
1168 struct dcerpc_binding_handle *b = NULL;
1169 struct policy_handle lsa_policy;
1170 unsigned int orig_timeout = 0;
1171 lookup_names_fn_t lookup_names_fn = dcerpc_lsa_lookup_names;
1172
1173 if (domain->can_do_ncacn_ip_tcp) {
1174 status = cm_connect_lsa_tcp(domain, mem_ctx, &cli);
1175 if (NT_STATUS_IS_OK(status)) {
1176 lookup_names_fn = dcerpc_lsa_lookup_names4;
1177 goto lookup;
1178 }
1179 domain->can_do_ncacn_ip_tcp = false;
1180 }
1181 status = cm_connect_lsa(domain, mem_ctx, &cli, &lsa_policy);
1182
1183 if (!NT_STATUS_IS_OK(status)) {
1184 return status;
1185 }
1186
1187 lookup:
1188 b = cli->binding_handle;
1189
1190 /*
1191 * This call can take a long time
1192 * allow the server to time out.
1193 * 35 seconds should do it.
1194 */
1195 orig_timeout = dcerpc_binding_handle_set_timeout(b, 35000);
1196
1197 status = lookup_names_fn(b,
1198 mem_ctx,
1199 &lsa_policy,
1200 num_names,
1201 (const char **) names,
1202 domains,
1203 1,
1204 sids,
1205 types,
1206 &result);
1207
1208 /* And restore our original timeout. */
1209 dcerpc_binding_handle_set_timeout(b, orig_timeout);
1210
1211 if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED) ||
1212 NT_STATUS_EQUAL(status, NT_STATUS_RPC_SEC_PKG_ERROR)) {
1213 /*
1214 * This can happen if the schannel key is not
1215 * valid anymore, we need to invalidate the
1216 * all connections to the dc and reestablish
1217 * a netlogon connection first.
1218 */
1219 invalidate_cm_connection(&domain->conn);
1220 status = NT_STATUS_ACCESS_DENIED;
1221 }
1222
1223 if (!NT_STATUS_IS_OK(status)) {
1224 return status;
1225 }
1226
1227 if (!NT_STATUS_IS_OK(result)) {
1228 return result;
1229 }
1230
1231 return NT_STATUS_OK;
1232 }
1233
1234 /* the rpc backend methods are exposed via this structure */
1235 struct winbindd_methods msrpc_methods = {
1236 False,
1237 msrpc_query_user_list,
1238 msrpc_enum_dom_groups,
1239 msrpc_enum_local_groups,
1240 msrpc_name_to_sid,
1241 msrpc_sid_to_name,
1242 msrpc_rids_to_names,
1243 msrpc_query_user,
1244 msrpc_lookup_usergroups,
1245 msrpc_lookup_useraliases,
1246 msrpc_lookup_groupmem,
1247 msrpc_sequence_number,
1248 msrpc_lockout_policy,
1249 msrpc_password_policy,
1250 msrpc_trusted_domains,
1251 };
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