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s3:winbindd: make use of samba_tevent_context_init()
[Samba/gebeck_regimport.git] / source3 / winbindd / winbindd_msrpc.c
blobe86838cf58582e02a83a23a4cc516ab86c890e50
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, &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, &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, &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 NTSTATUS name_map_status = NT_STATUS_UNSUCCESSFUL;
238 char *mapped_name = NULL;
239
240 if (name == NULL || *name=='\0') {
241 full_name = talloc_asprintf(mem_ctx, "%s", domain_name);
242 } else if (domain_name == NULL || *domain_name == '\0') {
243 full_name = talloc_asprintf(mem_ctx, "%s", name);
244 } else {
245 full_name = talloc_asprintf(mem_ctx, "%s\\%s", domain_name, name);
246 }
247 if (!full_name) {
248 DEBUG(0, ("talloc_asprintf failed!\n"));
249 return NT_STATUS_NO_MEMORY;
250 }
251
252 DEBUG(3, ("msrpc_name_to_sid: name=%s\n", full_name));
253
254 name_map_status = normalize_name_unmap(mem_ctx, full_name,
255 &mapped_name);
256
257 /* Reset the full_name pointer if we mapped anything */
258
259 if (NT_STATUS_IS_OK(name_map_status) ||
260 NT_STATUS_EQUAL(name_map_status, NT_STATUS_FILE_RENAMED))
261 {
262 full_name = mapped_name;
263 }
264
265 DEBUG(3,("name_to_sid [rpc] %s for domain %s\n",
266 full_name?full_name:"", domain_name ));
267
268 result = winbindd_lookup_names(mem_ctx, domain, 1,
269 (const char **)&full_name, NULL,
270 &sids, &types);
271 if (!NT_STATUS_IS_OK(result))
272 return result;
273
274 /* Return rid and type if lookup successful */
275
276 sid_copy(sid, &sids[0]);
277 *type = types[0];
278
279 return NT_STATUS_OK;
280 }
281
282 /*
283 convert a domain SID to a user or group name
284 */
285 static NTSTATUS msrpc_sid_to_name(struct winbindd_domain *domain,
286 TALLOC_CTX *mem_ctx,
287 const struct dom_sid *sid,
288 char **domain_name,
289 char **name,
290 enum lsa_SidType *type)
291 {
292 char **domains;
293 char **names;
294 enum lsa_SidType *types = NULL;
295 NTSTATUS result;
296 NTSTATUS name_map_status = NT_STATUS_UNSUCCESSFUL;
297 char *mapped_name = NULL;
298
299 DEBUG(3, ("msrpc_sid_to_name: %s for domain %s\n", sid_string_dbg(sid),
300 domain->name ));
301
302 result = winbindd_lookup_sids(mem_ctx,
303 domain,
304 1,
305 sid,
306 &domains,
307 &names,
308 &types);
309 if (!NT_STATUS_IS_OK(result)) {
310 DEBUG(2,("msrpc_sid_to_name: failed to lookup sids: %s\n",
311 nt_errstr(result)));
312 return result;
313 }
314
315
316 *type = (enum lsa_SidType)types[0];
317 *domain_name = domains[0];
318 *name = names[0];
319
320 DEBUG(5,("Mapped sid to [%s]\\[%s]\n", domains[0], *name));
321
322 name_map_status = normalize_name_map(mem_ctx, domain, *name,
323 &mapped_name);
324 if (NT_STATUS_IS_OK(name_map_status) ||
325 NT_STATUS_EQUAL(name_map_status, NT_STATUS_FILE_RENAMED))
326 {
327 *name = mapped_name;
328 DEBUG(5,("returning mapped name -- %s\n", *name));
329 }
330
331 return NT_STATUS_OK;
332 }
333
334 static NTSTATUS msrpc_rids_to_names(struct winbindd_domain *domain,
335 TALLOC_CTX *mem_ctx,
336 const struct dom_sid *sid,
337 uint32 *rids,
338 size_t num_rids,
339 char **domain_name,
340 char ***names,
341 enum lsa_SidType **types)
342 {
343 char **domains;
344 NTSTATUS result;
345 struct dom_sid *sids;
346 size_t i;
347 char **ret_names;
348
349 DEBUG(3, ("msrpc_rids_to_names: domain %s\n", domain->name ));
350
351 if (num_rids) {
352 sids = talloc_array(mem_ctx, struct dom_sid, num_rids);
353 if (sids == NULL) {
354 return NT_STATUS_NO_MEMORY;
355 }
356 } else {
357 sids = NULL;
358 }
359
360 for (i=0; i<num_rids; i++) {
361 if (!sid_compose(&sids[i], sid, rids[i])) {
362 return NT_STATUS_INTERNAL_ERROR;
363 }
364 }
365
366 result = winbindd_lookup_sids(mem_ctx,
367 domain,
368 num_rids,
369 sids,
370 &domains,
371 names,
372 types);
373
374 if (!NT_STATUS_IS_OK(result) &&
375 !NT_STATUS_EQUAL(result, STATUS_SOME_UNMAPPED)) {
376 return result;
377 }
378
379 ret_names = *names;
380 for (i=0; i<num_rids; i++) {
381 NTSTATUS name_map_status = NT_STATUS_UNSUCCESSFUL;
382 char *mapped_name = NULL;
383
384 if ((*types)[i] != SID_NAME_UNKNOWN) {
385 name_map_status = normalize_name_map(mem_ctx,
386 domain,
387 ret_names[i],
388 &mapped_name);
389 if (NT_STATUS_IS_OK(name_map_status) ||
390 NT_STATUS_EQUAL(name_map_status, NT_STATUS_FILE_RENAMED))
391 {
392 ret_names[i] = mapped_name;
393 }
394
395 *domain_name = domains[i];
396 }
397 }
398
399 return result;
400 }
401
402 /* Lookup user information from a rid or username. */
403 static NTSTATUS msrpc_query_user(struct winbindd_domain *domain,
404 TALLOC_CTX *mem_ctx,
405 const struct dom_sid *user_sid,
406 struct wbint_userinfo *user_info)
407 {
408 struct rpc_pipe_client *samr_pipe;
409 struct policy_handle dom_pol;
410 struct netr_SamInfo3 *user;
411 TALLOC_CTX *tmp_ctx;
412 NTSTATUS status;
413
414 DEBUG(3,("msrpc_query_user sid=%s\n", sid_string_dbg(user_sid)));
415
416 tmp_ctx = talloc_stackframe();
417 if (tmp_ctx == NULL) {
418 return NT_STATUS_NO_MEMORY;
419 }
420
421 if (user_info) {
422 user_info->homedir = NULL;
423 user_info->shell = NULL;
424 user_info->primary_gid = (gid_t)-1;
425 }
426
427 /* try netsamlogon cache first */
428 user = netsamlogon_cache_get(tmp_ctx, user_sid);
429 if (user != NULL) {
430 DEBUG(5,("msrpc_query_user: Cache lookup succeeded for %s\n",
431 sid_string_dbg(user_sid)));
432
433 sid_compose(&user_info->user_sid, &domain->sid, user->base.rid);
434 sid_compose(&user_info->group_sid, &domain->sid,
435 user->base.primary_gid);
436
437 user_info->acct_name = talloc_strdup(user_info,
438 user->base.account_name.string);
439 user_info->full_name = talloc_strdup(user_info,
440 user->base.full_name.string);
441
442 status = NT_STATUS_OK;
443 goto done;
444 }
445
446 if ( !winbindd_can_contact_domain( domain ) ) {
447 DEBUG(10,("query_user: No incoming trust for domain %s\n",
448 domain->name));
449 /* Tell the cache manager not to remember this one */
450 status = NT_STATUS_SYNCHRONIZATION_REQUIRED;
451 goto done;
452 }
453
454 /* no cache; hit the wire */
455 status = cm_connect_sam(domain, tmp_ctx, &samr_pipe, &dom_pol);
456 if (!NT_STATUS_IS_OK(status)) {
457 goto done;
458 }
459
460 status = rpc_query_user(tmp_ctx,
461 samr_pipe,
462 &dom_pol,
463 &domain->sid,
464 user_sid,
465 user_info);
466
467 done:
468 TALLOC_FREE(tmp_ctx);
469 return status;
470 }
471
472 /* Lookup groups a user is a member of. I wish Unix had a call like this! */
473 static NTSTATUS msrpc_lookup_usergroups(struct winbindd_domain *domain,
474 TALLOC_CTX *mem_ctx,
475 const struct dom_sid *user_sid,
476 uint32_t *pnum_groups,
477 struct dom_sid **puser_grpsids)
478 {
479 struct rpc_pipe_client *samr_pipe;
480 struct policy_handle dom_pol;
481 struct dom_sid *user_grpsids = NULL;
482 uint32_t num_groups = 0;
483 TALLOC_CTX *tmp_ctx;
484 NTSTATUS status;
485
486 DEBUG(3,("msrpc_lookup_usergroups sid=%s\n", sid_string_dbg(user_sid)));
487
488 *pnum_groups = 0;
489
490 tmp_ctx = talloc_stackframe();
491 if (tmp_ctx == NULL) {
492 return NT_STATUS_NO_MEMORY;
493 }
494
495 /* Check if we have a cached user_info_3 */
496 status = lookup_usergroups_cached(domain,
497 tmp_ctx,
498 user_sid,
499 &num_groups,
500 &user_grpsids);
501 if (NT_STATUS_IS_OK(status)) {
502 goto cached;
503 }
504
505 if ( !winbindd_can_contact_domain( domain ) ) {
506 DEBUG(10,("lookup_usergroups: No incoming trust for domain %s\n",
507 domain->name));
508
509 /* Tell the cache manager not to remember this one */
510 status = NT_STATUS_SYNCHRONIZATION_REQUIRED;
511 goto done;
512 }
513
514 /* no cache; hit the wire */
515 status = cm_connect_sam(domain, tmp_ctx, &samr_pipe, &dom_pol);
516 if (!NT_STATUS_IS_OK(status)) {
517 goto done;
518 }
519
520 status = rpc_lookup_usergroups(tmp_ctx,
521 samr_pipe,
522 &dom_pol,
523 &domain->sid,
524 user_sid,
525 &num_groups,
526 &user_grpsids);
527 if (!NT_STATUS_IS_OK(status)) {
528 goto done;
529 }
530
531 cached:
532 *pnum_groups = num_groups;
533
534 if (puser_grpsids) {
535 *puser_grpsids = talloc_move(mem_ctx, &user_grpsids);
536 }
537
538 done:
539 TALLOC_FREE(tmp_ctx);
540 return status;
541 return NT_STATUS_OK;
542 }
543
544 #define MAX_SAM_ENTRIES_W2K 0x400 /* 1024 */
545
546 static NTSTATUS msrpc_lookup_useraliases(struct winbindd_domain *domain,
547 TALLOC_CTX *mem_ctx,
548 uint32 num_sids, const struct dom_sid *sids,
549 uint32 *pnum_aliases,
550 uint32 **palias_rids)
551 {
552 struct rpc_pipe_client *samr_pipe;
553 struct policy_handle dom_pol;
554 uint32_t num_aliases = 0;
555 uint32_t *alias_rids = NULL;
556 TALLOC_CTX *tmp_ctx;
557 NTSTATUS status;
558
559 DEBUG(3,("msrpc_lookup_useraliases\n"));
560
561 if (pnum_aliases) {
562 *pnum_aliases = 0;
563 }
564
565 tmp_ctx = talloc_stackframe();
566 if (tmp_ctx == NULL) {
567 return NT_STATUS_NO_MEMORY;
568 }
569
570 if (!winbindd_can_contact_domain(domain)) {
571 DEBUG(10,("msrpc_lookup_useraliases: No incoming trust for domain %s\n",
572 domain->name));
573 /* Tell the cache manager not to remember this one */
574 status = NT_STATUS_SYNCHRONIZATION_REQUIRED;
575 goto done;
576 }
577
578 status = cm_connect_sam(domain, tmp_ctx, &samr_pipe, &dom_pol);
579 if (!NT_STATUS_IS_OK(status)) {
580 goto done;
581 }
582
583 status = rpc_lookup_useraliases(tmp_ctx,
584 samr_pipe,
585 &dom_pol,
586 num_sids,
587 sids,
588 &num_aliases,
589 &alias_rids);
590 if (!NT_STATUS_IS_OK(status)) {
591 goto done;
592 }
593
594 if (pnum_aliases) {
595 *pnum_aliases = num_aliases;
596 }
597
598 if (palias_rids) {
599 *palias_rids = talloc_move(mem_ctx, &alias_rids);
600 }
601
602 done:
603 TALLOC_FREE(tmp_ctx);
604 return status;
605 }
606
607
608 /* Lookup group membership given a rid. */
609 static NTSTATUS msrpc_lookup_groupmem(struct winbindd_domain *domain,
610 TALLOC_CTX *mem_ctx,
611 const struct dom_sid *group_sid,
612 enum lsa_SidType type,
613 uint32_t *num_names,
614 struct dom_sid **sid_mem,
615 char ***names,
616 uint32_t **name_types)
617 {
618 NTSTATUS status, result;
619 uint32 i, total_names = 0;
620 struct policy_handle dom_pol, group_pol;
621 uint32 des_access = SEC_FLAG_MAXIMUM_ALLOWED;
622 uint32 *rid_mem = NULL;
623 uint32 group_rid;
624 unsigned int j, r;
625 struct rpc_pipe_client *cli;
626 unsigned int orig_timeout;
627 struct samr_RidAttrArray *rids = NULL;
628 struct dcerpc_binding_handle *b;
629
630 DEBUG(3,("msrpc_lookup_groupmem: %s sid=%s\n", domain->name,
631 sid_string_dbg(group_sid)));
632
633 if ( !winbindd_can_contact_domain( domain ) ) {
634 DEBUG(10,("lookup_groupmem: No incoming trust for domain %s\n",
635 domain->name));
636 return NT_STATUS_OK;
637 }
638
639 if (!sid_peek_check_rid(&domain->sid, group_sid, &group_rid))
640 return NT_STATUS_UNSUCCESSFUL;
641
642 *num_names = 0;
643
644 result = cm_connect_sam(domain, mem_ctx, &cli, &dom_pol);
645 if (!NT_STATUS_IS_OK(result))
646 return result;
647
648 b = cli->binding_handle;
649
650 status = dcerpc_samr_OpenGroup(b, mem_ctx,
651 &dom_pol,
652 des_access,
653 group_rid,
654 &group_pol,
655 &result);
656 if (!NT_STATUS_IS_OK(status)) {
657 return status;
658 }
659 if (!NT_STATUS_IS_OK(result)) {
660 return result;
661 }
662
663 /* Step #1: Get a list of user rids that are the members of the
664 group. */
665
666 /* This call can take a long time - allow the server to time out.
667 35 seconds should do it. */
668
669 orig_timeout = rpccli_set_timeout(cli, 35000);
670
671 status = dcerpc_samr_QueryGroupMember(b, mem_ctx,
672 &group_pol,
673 &rids,
674 &result);
675
676 /* And restore our original timeout. */
677 rpccli_set_timeout(cli, orig_timeout);
678
679 {
680 NTSTATUS _result;
681 dcerpc_samr_Close(b, mem_ctx, &group_pol, &_result);
682 }
683
684 if (!NT_STATUS_IS_OK(status)) {
685 return status;
686 }
687
688 if (!NT_STATUS_IS_OK(result)) {
689 return result;
690 }
691
692 if (!rids || !rids->count) {
693 names = NULL;
694 name_types = NULL;
695 sid_mem = NULL;
696 return NT_STATUS_OK;
697 }
698
699 *num_names = rids->count;
700 rid_mem = rids->rids;
701
702 /* Step #2: Convert list of rids into list of usernames. Do this
703 in bunches of ~1000 to avoid crashing NT4. It looks like there
704 is a buffer overflow or something like that lurking around
705 somewhere. */
706
707 #define MAX_LOOKUP_RIDS 900
708
709 *names = talloc_zero_array(mem_ctx, char *, *num_names);
710 *name_types = talloc_zero_array(mem_ctx, uint32, *num_names);
711 *sid_mem = talloc_zero_array(mem_ctx, struct dom_sid, *num_names);
712
713 for (j=0;j<(*num_names);j++)
714 sid_compose(&(*sid_mem)[j], &domain->sid, rid_mem[j]);
715
716 if (*num_names>0 && (!*names || !*name_types))
717 return NT_STATUS_NO_MEMORY;
718
719 for (i = 0; i < *num_names; i += MAX_LOOKUP_RIDS) {
720 int num_lookup_rids = MIN(*num_names - i, MAX_LOOKUP_RIDS);
721 struct lsa_Strings tmp_names;
722 struct samr_Ids tmp_types;
723
724 /* Lookup a chunk of rids */
725
726 status = dcerpc_samr_LookupRids(b, mem_ctx,
727 &dom_pol,
728 num_lookup_rids,
729 &rid_mem[i],
730 &tmp_names,
731 &tmp_types,
732 &result);
733 if (!NT_STATUS_IS_OK(status)) {
734 return status;
735 }
736
737 /* see if we have a real error (and yes the
738 STATUS_SOME_UNMAPPED is the one returned from 2k) */
739
740 if (!NT_STATUS_IS_OK(result) &&
741 !NT_STATUS_EQUAL(result, STATUS_SOME_UNMAPPED))
742 return result;
743
744 /* Copy result into array. The talloc system will take
745 care of freeing the temporary arrays later on. */
746
747 if (tmp_names.count != tmp_types.count) {
748 return NT_STATUS_UNSUCCESSFUL;
749 }
750
751 for (r=0; r<tmp_names.count; r++) {
752 if (tmp_types.ids[r] == SID_NAME_UNKNOWN) {
753 continue;
754 }
755 (*names)[total_names] = fill_domain_username_talloc(
756 mem_ctx, domain->name,
757 tmp_names.names[r].string, true);
758 (*name_types)[total_names] = tmp_types.ids[r];
759 total_names += 1;
760 }
761 }
762
763 *num_names = total_names;
764
765 return NT_STATUS_OK;
766 }
767
768 #ifdef HAVE_LDAP
769
770 #include "ads.h"
771
772 static int get_ldap_seq(const char *server, struct sockaddr_storage *ss, int port, uint32 *seq)
773 {
774 int ret = -1;
775 struct timeval to;
776 const char *attrs[] = {"highestCommittedUSN", NULL};
777 LDAPMessage *res = NULL;
778 char **values = NULL;
779 LDAP *ldp = NULL;
780
781 *seq = DOM_SEQUENCE_NONE;
782
783 /*
784 * Parameterised (5) second timeout on open. This is needed as the
785 * search timeout doesn't seem to apply to doing an open as well. JRA.
786 */
787
788 ldp = ldap_open_with_timeout(server, ss, port, lp_ldap_timeout());
789 if (ldp == NULL)
790 return -1;
791
792 /* Timeout if no response within 20 seconds. */
793 to.tv_sec = 10;
794 to.tv_usec = 0;
795
796 if (ldap_search_st(ldp, "", LDAP_SCOPE_BASE, "(objectclass=*)",
797 discard_const_p(char *, attrs), 0, &to, &res))
798 goto done;
799
800 if (ldap_count_entries(ldp, res) != 1)
801 goto done;
802
803 values = ldap_get_values(ldp, res, "highestCommittedUSN");
804 if (!values || !values[0])
805 goto done;
806
807 *seq = atoi(values[0]);
808 ret = 0;
809
810 done:
811
812 if (values)
813 ldap_value_free(values);
814 if (res)
815 ldap_msgfree(res);
816 if (ldp)
817 ldap_unbind(ldp);
818 return ret;
819 }
820
821 /**********************************************************************
822 Get the sequence number for a Windows AD native mode domain using
823 LDAP queries.
824 **********************************************************************/
825
826 static int get_ldap_sequence_number(struct winbindd_domain *domain, uint32 *seq)
827 {
828 int ret = -1;
829 char addr[INET6_ADDRSTRLEN];
830
831 print_sockaddr(addr, sizeof(addr), &domain->dcaddr);
832 if ((ret = get_ldap_seq(addr, &domain->dcaddr, LDAP_PORT, seq)) == 0) {
833 DEBUG(3, ("get_ldap_sequence_number: Retrieved sequence "
834 "number for Domain (%s) from DC (%s)\n",
835 domain->name, addr));
836 }
837 return ret;
838 }
839
840 #endif /* HAVE_LDAP */
841
842 /* find the sequence number for a domain */
843 static NTSTATUS msrpc_sequence_number(struct winbindd_domain *domain,
844 uint32_t *pseq)
845 {
846 struct rpc_pipe_client *samr_pipe;
847 struct policy_handle dom_pol;
848 uint32_t seq;
849 TALLOC_CTX *tmp_ctx;
850 NTSTATUS status;
851
852 DEBUG(3, ("msrpc_sequence_number: fetch sequence_number for %s\n", domain->name));
853
854 if (pseq) {
855 *pseq = DOM_SEQUENCE_NONE;
856 }
857
858 tmp_ctx = talloc_stackframe();
859 if (tmp_ctx == NULL) {
860 return NT_STATUS_NO_MEMORY;
861 }
862
863 if ( !winbindd_can_contact_domain( domain ) ) {
864 DEBUG(10,("sequence_number: No incoming trust for domain %s\n",
865 domain->name));
866 if (pseq) {
867 *pseq = time(NULL);
868 }
869 status = NT_STATUS_OK;
870 goto done;
871 }
872
873 #ifdef HAVE_LDAP
874 if (domain->active_directory) {
875 int rc;
876
877 DEBUG(8,("using get_ldap_seq() to retrieve the "
878 "sequence number\n"));
879
880 rc = get_ldap_sequence_number(domain, &seq);
881 if (rc == 0) {
882 DEBUG(10,("domain_sequence_number: LDAP for "
883 "domain %s is %u\n",
884 domain->name, seq));
885
886 if (pseq) {
887 *pseq = seq;
888 }
889
890 status = NT_STATUS_OK;
891 goto done;
892 }
893
894 DEBUG(10,("domain_sequence_number: failed to get LDAP "
895 "sequence number for domain %s\n",
896 domain->name ));
897 }
898 #endif /* HAVE_LDAP */
899
900 status = cm_connect_sam(domain, tmp_ctx, &samr_pipe, &dom_pol);
901 if (!NT_STATUS_IS_OK(status)) {
902 goto done;
903 }
904
905 status = rpc_sequence_number(tmp_ctx,
906 samr_pipe,
907 &dom_pol,
908 domain->name,
909 &seq);
910 if (!NT_STATUS_IS_OK(status)) {
911 goto done;
912 }
913
914 if (pseq) {
915 *pseq = seq;
916 }
917
918 done:
919 TALLOC_FREE(tmp_ctx);
920 return status;
921 }
922
923 /* get a list of trusted domains */
924 static NTSTATUS msrpc_trusted_domains(struct winbindd_domain *domain,
925 TALLOC_CTX *mem_ctx,
926 struct netr_DomainTrustList *ptrust_list)
927 {
928 struct rpc_pipe_client *lsa_pipe;
929 struct policy_handle lsa_policy;
930 struct netr_DomainTrust *trusts = NULL;
931 uint32_t num_trusts = 0;
932 TALLOC_CTX *tmp_ctx;
933 NTSTATUS status;
934
935 DEBUG(3,("msrpc_trusted_domains\n"));
936
937 if (ptrust_list) {
938 ZERO_STRUCTP(ptrust_list);
939 }
940
941 tmp_ctx = talloc_stackframe();
942 if (tmp_ctx == NULL) {
943 return NT_STATUS_NO_MEMORY;
944 }
945
946 status = cm_connect_lsa(domain, tmp_ctx, &lsa_pipe, &lsa_policy);
947 if (!NT_STATUS_IS_OK(status))
948 return status;
949
950 status = rpc_trusted_domains(tmp_ctx,
951 lsa_pipe,
952 &lsa_policy,
953 &num_trusts,
954 &trusts);
955 if (!NT_STATUS_IS_OK(status)) {
956 goto done;
957 }
958
959 if (ptrust_list) {
960 ptrust_list->count = num_trusts;
961 ptrust_list->array = talloc_move(mem_ctx, &trusts);
962 }
963
964 done:
965 TALLOC_FREE(tmp_ctx);
966 return status;
967 }
968
969 /* find the lockout policy for a domain */
970 static NTSTATUS msrpc_lockout_policy(struct winbindd_domain *domain,
971 TALLOC_CTX *mem_ctx,
972 struct samr_DomInfo12 *lockout_policy)
973 {
974 NTSTATUS status, result;
975 struct rpc_pipe_client *cli;
976 struct policy_handle dom_pol;
977 union samr_DomainInfo *info = NULL;
978 struct dcerpc_binding_handle *b;
979
980 DEBUG(3, ("msrpc_lockout_policy: fetch lockout policy for %s\n", domain->name));
981
982 if ( !winbindd_can_contact_domain( domain ) ) {
983 DEBUG(10,("msrpc_lockout_policy: No incoming trust for domain %s\n",
984 domain->name));
985 return NT_STATUS_NOT_SUPPORTED;
986 }
987
988 status = cm_connect_sam(domain, mem_ctx, &cli, &dom_pol);
989 if (!NT_STATUS_IS_OK(status)) {
990 goto done;
991 }
992
993 b = cli->binding_handle;
994
995 status = dcerpc_samr_QueryDomainInfo(b, mem_ctx,
996 &dom_pol,
997 DomainLockoutInformation,
998 &info,
999 &result);
1000 if (!NT_STATUS_IS_OK(status)) {
1001 goto done;
1002 }
1003 if (!NT_STATUS_IS_OK(result)) {
1004 status = result;
1005 goto done;
1006 }
1007
1008 *lockout_policy = info->info12;
1009
1010 DEBUG(10,("msrpc_lockout_policy: lockout_threshold %d\n",
1011 info->info12.lockout_threshold));
1012
1013 done:
1014
1015 return status;
1016 }
1017
1018 /* find the password policy for a domain */
1019 static NTSTATUS msrpc_password_policy(struct winbindd_domain *domain,
1020 TALLOC_CTX *mem_ctx,
1021 struct samr_DomInfo1 *password_policy)
1022 {
1023 NTSTATUS status, result;
1024 struct rpc_pipe_client *cli;
1025 struct policy_handle dom_pol;
1026 union samr_DomainInfo *info = NULL;
1027 struct dcerpc_binding_handle *b;
1028
1029 DEBUG(3, ("msrpc_password_policy: fetch password policy for %s\n",
1030 domain->name));
1031
1032 if ( !winbindd_can_contact_domain( domain ) ) {
1033 DEBUG(10,("msrpc_password_policy: No incoming trust for domain %s\n",
1034 domain->name));
1035 return NT_STATUS_NOT_SUPPORTED;
1036 }
1037
1038 status = cm_connect_sam(domain, mem_ctx, &cli, &dom_pol);
1039 if (!NT_STATUS_IS_OK(status)) {
1040 goto done;
1041 }
1042
1043 b = cli->binding_handle;
1044
1045 status = dcerpc_samr_QueryDomainInfo(b, mem_ctx,
1046 &dom_pol,
1047 DomainPasswordInformation,
1048 &info,
1049 &result);
1050 if (!NT_STATUS_IS_OK(status)) {
1051 goto done;
1052 }
1053 if (!NT_STATUS_IS_OK(result)) {
1054 goto done;
1055 }
1056
1057 *password_policy = info->info1;
1058
1059 DEBUG(10,("msrpc_password_policy: min_length_password %d\n",
1060 info->info1.min_password_length));
1061
1062 done:
1063
1064 return status;
1065 }
1066
1067 NTSTATUS winbindd_lookup_sids(TALLOC_CTX *mem_ctx,
1068 struct winbindd_domain *domain,
1069 uint32_t num_sids,
1070 const struct dom_sid *sids,
1071 char ***domains,
1072 char ***names,
1073 enum lsa_SidType **types)
1074 {
1075 NTSTATUS status;
1076 NTSTATUS result;
1077 struct rpc_pipe_client *cli = NULL;
1078 struct dcerpc_binding_handle *b = NULL;
1079 struct policy_handle lsa_policy;
1080 unsigned int orig_timeout;
1081 bool use_lookupsids3 = false;
1082 bool retried = false;
1083
1084 connect:
1085 status = cm_connect_lsat(domain, mem_ctx, &cli, &lsa_policy);
1086 if (!NT_STATUS_IS_OK(status)) {
1087 return status;
1088 }
1089
1090 b = cli->binding_handle;
1091
1092 if (cli->transport->transport == NCACN_IP_TCP) {
1093 use_lookupsids3 = true;
1094 }
1095
1096 /*
1097 * This call can take a long time
1098 * allow the server to time out.
1099 * 35 seconds should do it.
1100 */
1101 orig_timeout = dcerpc_binding_handle_set_timeout(b, 35000);
1102
1103 status = dcerpc_lsa_lookup_sids_generic(b,
1104 mem_ctx,
1105 &lsa_policy,
1106 num_sids,
1107 sids,
1108 domains,
1109 names,
1110 types,
1111 use_lookupsids3,
1112 &result);
1113
1114 /* And restore our original timeout. */
1115 dcerpc_binding_handle_set_timeout(b, orig_timeout);
1116
1117 if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED) ||
1118 NT_STATUS_EQUAL(status, NT_STATUS_RPC_SEC_PKG_ERROR) ||
1119 NT_STATUS_EQUAL(status, NT_STATUS_NETWORK_ACCESS_DENIED)) {
1120 /*
1121 * This can happen if the schannel key is not
1122 * valid anymore, we need to invalidate the
1123 * all connections to the dc and reestablish
1124 * a netlogon connection first.
1125 */
1126 invalidate_cm_connection(&domain->conn);
1127 domain->can_do_ncacn_ip_tcp = domain->active_directory;
1128 if (!retried) {
1129 retried = true;
1130 goto connect;
1131 }
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 static NTSTATUS winbindd_lookup_names(TALLOC_CTX *mem_ctx,
1147 struct winbindd_domain *domain,
1148 uint32_t num_names,
1149 const char **names,
1150 const char ***domains,
1151 struct dom_sid **sids,
1152 enum lsa_SidType **types)
1153 {
1154 NTSTATUS status;
1155 NTSTATUS result;
1156 struct rpc_pipe_client *cli = NULL;
1157 struct dcerpc_binding_handle *b = NULL;
1158 struct policy_handle lsa_policy;
1159 unsigned int orig_timeout = 0;
1160 bool use_lookupnames4 = false;
1161 bool retried = false;
1162
1163 connect:
1164 status = cm_connect_lsat(domain, mem_ctx, &cli, &lsa_policy);
1165 if (!NT_STATUS_IS_OK(status)) {
1166 return status;
1167 }
1168
1169 b = cli->binding_handle;
1170
1171 if (cli->transport->transport == NCACN_IP_TCP) {
1172 use_lookupnames4 = true;
1173 }
1174
1175 /*
1176 * This call can take a long time
1177 * allow the server to time out.
1178 * 35 seconds should do it.
1179 */
1180 orig_timeout = dcerpc_binding_handle_set_timeout(b, 35000);
1181
1182 status = dcerpc_lsa_lookup_names_generic(b,
1183 mem_ctx,
1184 &lsa_policy,
1185 num_names,
1186 (const char **) names,
1187 domains,
1188 1,
1189 sids,
1190 types,
1191 use_lookupnames4,
1192 &result);
1193
1194 /* And restore our original timeout. */
1195 dcerpc_binding_handle_set_timeout(b, orig_timeout);
1196
1197 if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED) ||
1198 NT_STATUS_EQUAL(status, NT_STATUS_RPC_SEC_PKG_ERROR) ||
1199 NT_STATUS_EQUAL(status, NT_STATUS_NETWORK_ACCESS_DENIED)) {
1200 /*
1201 * This can happen if the schannel key is not
1202 * valid anymore, we need to invalidate the
1203 * all connections to the dc and reestablish
1204 * a netlogon connection first.
1205 */
1206 invalidate_cm_connection(&domain->conn);
1207 if (!retried) {
1208 retried = true;
1209 goto connect;
1210 }
1211 status = NT_STATUS_ACCESS_DENIED;
1212 }
1213
1214 if (!NT_STATUS_IS_OK(status)) {
1215 return status;
1216 }
1217
1218 if (!NT_STATUS_IS_OK(result)) {
1219 return result;
1220 }
1221
1222 return NT_STATUS_OK;
1223 }
1224
1225 /* the rpc backend methods are exposed via this structure */
1226 struct winbindd_methods msrpc_methods = {
1227 False,
1228 msrpc_query_user_list,
1229 msrpc_enum_dom_groups,
1230 msrpc_enum_local_groups,
1231 msrpc_name_to_sid,
1232 msrpc_sid_to_name,
1233 msrpc_rids_to_names,
1234 msrpc_query_user,
1235 msrpc_lookup_usergroups,
1236 msrpc_lookup_useraliases,
1237 msrpc_lookup_groupmem,
1238 msrpc_sequence_number,
1239 msrpc_lockout_policy,
1240 msrpc_password_policy,
1241 msrpc_trusted_domains,
1242 };
reg import