summaryrefslogtreecommitdiff
path: root/source4/rpc_server/lsa/lsa_lookup.c
blob: 7452c73d6f795a7d58a4bf034383a7b2d167ea88 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
/* 
   Unix SMB/CIFS implementation.

   endpoint server for the lsarpc pipe

   Copyright (C) Andrew Tridgell 2004
   Copyright (C) Andrew Bartlett <abartlet@samba.org> 2004-2007
   
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.
   
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   
   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "rpc_server/lsa/lsa.h"

static const struct {
	const char *domain;
	const char *name;
	const char *sid;
	int rtype;
} well_known[] = {
	{
		.name = "EVERYONE",
		.sid = SID_WORLD,
		.rtype = SID_NAME_WKN_GRP,
	},
	{
		.name = "CREATOR OWNER",
		.sid = SID_CREATOR_OWNER,
		.rtype = SID_NAME_WKN_GRP,
	},
	{
		.name = "CREATOR GROUP",
		.sid = SID_CREATOR_GROUP,
		.rtype = SID_NAME_WKN_GRP,
	},
	{
		.name = "Owner Rights",
		.sid = SID_OWNER_RIGHTS,
		.rtype = SID_NAME_WKN_GRP,
	},
	{
		.domain = "NT AUTHORITY",
		.name = "Dialup",
		.sid = SID_NT_DIALUP,
		.rtype = SID_NAME_WKN_GRP,
	},
	{
		.domain = "NT AUTHORITY",
		.name = "Network",
		.sid = SID_NT_NETWORK,
		.rtype = SID_NAME_WKN_GRP,
	},
	{
		.domain = "NT AUTHORITY",
		.name = "Batch",
		.sid = SID_NT_BATCH,
		.rtype = SID_NAME_WKN_GRP,
	},
	{
		.domain = "NT AUTHORITY",
		.name = "Interactive",
		.sid = SID_NT_INTERACTIVE,
		.rtype = SID_NAME_WKN_GRP,
	},
	{
		.domain = "NT AUTHORITY",
		.name = "Service",
		.sid = SID_NT_SERVICE,
		.rtype = SID_NAME_WKN_GRP,
	},
	{
		.domain = "NT AUTHORITY",
		.name = "ANONYMOUS LOGON",
		.sid = SID_NT_ANONYMOUS,
		.rtype = SID_NAME_WKN_GRP,
	},
	{
		.domain = "NT AUTHORITY",
		.name = "Proxy",
		.sid = SID_NT_PROXY,
		.rtype = SID_NAME_WKN_GRP,
	},
	{
		.domain = "NT AUTHORITY",
		.name = "ServerLogon",
		.sid = SID_NT_ENTERPRISE_DCS,
		.rtype = SID_NAME_WKN_GRP,
	},
	{
		.domain = "NT AUTHORITY",
		.name = "Self",
		.sid = SID_NT_SELF,
		.rtype = SID_NAME_WKN_GRP,
	},
	{
		.domain = "NT AUTHORITY",
		.name = "Authenticated Users",
		.sid = SID_NT_AUTHENTICATED_USERS,
		.rtype = SID_NAME_WKN_GRP,
	},
	{
		.domain = "NT AUTHORITY",
		.name = "Restricted",
		.sid = SID_NT_RESTRICTED,
		.rtype = SID_NAME_WKN_GRP,
	},
	{
		.domain = "NT AUTHORITY",
		.name = "Terminal Server User",
		.sid = SID_NT_TERMINAL_SERVER_USERS,
		.rtype = SID_NAME_WKN_GRP,
	},
	{
		.domain = "NT AUTHORITY",
		.name = "Remote Interactive Logon",
		.sid = SID_NT_REMOTE_INTERACTIVE,
		.rtype = SID_NAME_WKN_GRP,
	},
	{
		.domain = "NT AUTHORITY",
		.name = "This Organization",
		.sid = SID_NT_THIS_ORGANISATION,
		.rtype = SID_NAME_WKN_GRP,
	},
	{
		.domain = "NT AUTHORITY",
		.name = "SYSTEM",
		.sid = SID_NT_SYSTEM,
		.rtype = SID_NAME_WKN_GRP,
	},
	{
		.domain = "NT AUTHORITY",
		.name = "Local Service",
		.sid = SID_NT_LOCAL_SERVICE,
		.rtype = SID_NAME_WKN_GRP,
	},
	{
		.domain = "NT AUTHORITY",
		.name = "Network Service",
		.sid = SID_NT_NETWORK_SERVICE,
		.rtype = SID_NAME_WKN_GRP,
	},
	{
		.domain = "NT AUTHORITY",
		.name = "Digest Authentication",
		.sid = SID_NT_DIGEST_AUTHENTICATION,
		.rtype = SID_NAME_WKN_GRP,
	},
	{
		.domain = "NT AUTHORITY",
		.name = "Enterprise Domain Controllers",
		.sid = SID_NT_ENTERPRISE_DCS,
		.rtype = SID_NAME_WKN_GRP,
	},
	{
		.domain = "NT AUTHORITY",
		.name = "NTLM Authentication",
		.sid = SID_NT_NTLM_AUTHENTICATION,
		.rtype = SID_NAME_WKN_GRP,
	},
	{
		.domain = "NT AUTHORITY",
		.name = "Other Organization",
		.sid = SID_NT_OTHER_ORGANISATION,
		.rtype = SID_NAME_WKN_GRP,
	},
	{
		.domain = "NT AUTHORITY",
		.name = "SChannel Authentication",
		.sid = SID_NT_SCHANNEL_AUTHENTICATION,
		.rtype = SID_NAME_WKN_GRP,
	},
	{
		.domain = "NT AUTHORITY",
		.name = "IUSR",
		.sid = SID_NT_IUSR,
		.rtype = SID_NAME_WKN_GRP,
	},
	{
		.sid = NULL,
	}
};

static NTSTATUS lookup_well_known_names(TALLOC_CTX *mem_ctx, const char *domain,
					const char *name, const char **authority_name, 
					struct dom_sid **sid, enum lsa_SidType *rtype)
{
	unsigned int i;
	for (i=0; well_known[i].sid; i++) {
		if (domain) {
			if (strcasecmp_m(domain, well_known[i].domain) == 0
			    && strcasecmp_m(name, well_known[i].name) == 0) {
				*authority_name = well_known[i].domain;
				*sid = dom_sid_parse_talloc(mem_ctx, well_known[i].sid);
				*rtype = well_known[i].rtype;
				return NT_STATUS_OK;
			}
		} else {
			if (strcasecmp_m(name, well_known[i].name) == 0) {
				*authority_name = well_known[i].domain;
				*sid = dom_sid_parse_talloc(mem_ctx, well_known[i].sid);
				*rtype = well_known[i].rtype;
				return NT_STATUS_OK;
			}
		}
	}
	return NT_STATUS_NOT_FOUND;	
}

static NTSTATUS lookup_well_known_sids(TALLOC_CTX *mem_ctx, 
				       const char *sid_str, const char **authority_name, 
				       const char **name, uint32_t *rtype) 
{
	unsigned int i;
	for (i=0; well_known[i].sid; i++) {
		if (strcasecmp_m(sid_str, well_known[i].sid) == 0) {
			*authority_name = well_known[i].domain;
			*name = well_known[i].name;
			*rtype = well_known[i].rtype;
			return NT_STATUS_OK;
		}
	}
	return NT_STATUS_NOT_FOUND;	
}

/*
  lookup a SID for 1 name
*/
static NTSTATUS dcesrv_lsa_lookup_name(struct tevent_context *ev_ctx, 
				       struct loadparm_context *lp_ctx,
				       struct lsa_policy_state *state, TALLOC_CTX *mem_ctx,
				       const char *name, const char **authority_name, 
				       struct dom_sid **sid, enum lsa_SidType *rtype,
				       uint32_t *rid)
{
	int ret, i;
	uint32_t atype;
	struct ldb_message **res;
	const char * const attrs[] = { "objectSid", "sAMAccountType", NULL};
	const char *p;
	const char *domain;
	const char *username;
	struct ldb_dn *domain_dn;
	struct dom_sid *domain_sid;
	NTSTATUS status;

	p = strchr_m(name, '\\');
	if (p != NULL) {
		domain = talloc_strndup(mem_ctx, name, p-name);
		if (!domain) {
			return NT_STATUS_NO_MEMORY;
		}
		username = p + 1;
	} else if (strchr_m(name, '@')) {
		status = crack_name_to_nt4_name(mem_ctx, ev_ctx, lp_ctx, DRSUAPI_DS_NAME_FORMAT_USER_PRINCIPAL, name, &domain, &username);
		if (!NT_STATUS_IS_OK(status)) {
			DEBUG(3, ("Failed to crack name %s into an NT4 name: %s\n", name, nt_errstr(status)));
			return status;
		}
	} else {
		domain = NULL;
		username = name;
	}
	
	if (!domain) {
		/* Look up table of well known names */
		status = lookup_well_known_names(mem_ctx, NULL, username, authority_name, sid, rtype);
		if (NT_STATUS_IS_OK(status)) {
			dom_sid_split_rid(NULL, *sid, NULL, rid);
			return NT_STATUS_OK;
		}

		if (username == NULL) {
			*authority_name = NAME_BUILTIN;
			*sid = dom_sid_parse_talloc(mem_ctx, SID_BUILTIN);
			*rtype = SID_NAME_DOMAIN;
			*rid = 0xFFFFFFFF;
			return NT_STATUS_OK;
		}

		if (strcasecmp_m(username, NAME_NT_AUTHORITY) == 0) { 
			*authority_name = NAME_NT_AUTHORITY;
			*sid =  dom_sid_parse_talloc(mem_ctx, SID_NT_AUTHORITY);
			*rtype = SID_NAME_DOMAIN;
			dom_sid_split_rid(NULL, *sid, NULL, rid);
			return NT_STATUS_OK;
		}
		if (strcasecmp_m(username, NAME_BUILTIN) == 0) { 
			*authority_name = NAME_BUILTIN;
			*sid = dom_sid_parse_talloc(mem_ctx, SID_BUILTIN);
			*rtype = SID_NAME_DOMAIN;
			*rid = 0xFFFFFFFF;
			return NT_STATUS_OK;
		}
		if (strcasecmp_m(username, state->domain_dns) == 0) { 
			*authority_name = state->domain_name;
			*sid =  state->domain_sid;
			*rtype = SID_NAME_DOMAIN;
			*rid = 0xFFFFFFFF;
			return NT_STATUS_OK;
		}
		if (strcasecmp_m(username, state->domain_name) == 0) { 
			*authority_name = state->domain_name;
			*sid =  state->domain_sid;
			*rtype = SID_NAME_DOMAIN;
			*rid = 0xFFFFFFFF;
			return NT_STATUS_OK;
		}
		
		/* Perhaps this is a well known user? */
		name = talloc_asprintf(mem_ctx, "%s\\%s", NAME_NT_AUTHORITY, username);
		if (!name) {
			return NT_STATUS_NO_MEMORY;
		}
		status = dcesrv_lsa_lookup_name(ev_ctx, lp_ctx, state, mem_ctx, name, authority_name, sid, rtype, rid);
		if (NT_STATUS_IS_OK(status)) {
			return status;
		}

		/* Perhaps this is a BUILTIN user? */
		name = talloc_asprintf(mem_ctx, "%s\\%s", NAME_BUILTIN, username);
		if (!name) {
			return NT_STATUS_NO_MEMORY;
		}
		status = dcesrv_lsa_lookup_name(ev_ctx, lp_ctx, state, mem_ctx, name, authority_name, sid, rtype, rid);
		if (NT_STATUS_IS_OK(status)) {
			return status;
		}

		/* OK, I give up - perhaps we need to assume the user is in our domain? */
		name = talloc_asprintf(mem_ctx, "%s\\%s", state->domain_name, username);
		if (!name) {
			return NT_STATUS_NO_MEMORY;
		}
		status = dcesrv_lsa_lookup_name(ev_ctx, lp_ctx, state, mem_ctx, name, authority_name, sid, rtype, rid);
		if (NT_STATUS_IS_OK(status)) {
			return status;
		}

		return STATUS_SOME_UNMAPPED;
	} else if (strcasecmp_m(domain, NAME_NT_AUTHORITY) == 0) {
		if (!*username) {
			*authority_name = NAME_NT_AUTHORITY;
			*sid = dom_sid_parse_talloc(mem_ctx, SID_NT_AUTHORITY);
			*rtype = SID_NAME_DOMAIN;
			dom_sid_split_rid(NULL, *sid, NULL, rid);
			return NT_STATUS_OK;
		}

		/* Look up table of well known names */
		status = lookup_well_known_names(mem_ctx, domain, username, authority_name, 
						 sid, rtype);
		if (NT_STATUS_IS_OK(status)) {
			dom_sid_split_rid(NULL, *sid, NULL, rid);
		}
		return status;
	} else if (strcasecmp_m(domain, NAME_BUILTIN) == 0) {
		*authority_name = NAME_BUILTIN;
		domain_dn = state->builtin_dn;
	} else if (strcasecmp_m(domain, state->domain_dns) == 0) { 
		*authority_name = state->domain_name;
		domain_dn = state->domain_dn;
	} else if (strcasecmp_m(domain, state->domain_name) == 0) { 
		*authority_name = state->domain_name;
		domain_dn = state->domain_dn;
	} else {
		/* Not local, need to ask winbind in future */
		return STATUS_SOME_UNMAPPED;
	}

	ret = gendb_search_dn(state->sam_ldb, mem_ctx, domain_dn, &res, attrs);
	if (ret != 1) {
		return NT_STATUS_INTERNAL_DB_CORRUPTION;
	}
	domain_sid = samdb_result_dom_sid(mem_ctx, res[0], "objectSid");
	if (domain_sid == NULL) {
		return NT_STATUS_INVALID_SID;
	}

	if (!*username) {
		*sid = domain_sid;
		*rtype = SID_NAME_DOMAIN;
		*rid = 0xFFFFFFFF;
		return NT_STATUS_OK;
	}
	
	ret = gendb_search(state->sam_ldb, mem_ctx, domain_dn, &res, attrs, 
			   "(&(sAMAccountName=%s)(objectSid=*))", 
			   ldb_binary_encode_string(mem_ctx, username));
	if (ret < 0) {
		return NT_STATUS_INTERNAL_DB_CORRUPTION;
	}

	for (i=0; i < ret; i++) {
		*sid = samdb_result_dom_sid(mem_ctx, res[i], "objectSid");
		if (*sid == NULL) {
			return NT_STATUS_INVALID_SID;
		}

		/* Check that this is in the domain */
		if (!dom_sid_in_domain(domain_sid, *sid)) {
			continue;
		}

		atype = samdb_result_uint(res[i], "sAMAccountType", 0);
			
		*rtype = ds_atype_map(atype);
		if (*rtype == SID_NAME_UNKNOWN) {
			return STATUS_SOME_UNMAPPED;
		}

		dom_sid_split_rid(NULL, *sid, NULL, rid);
		return NT_STATUS_OK;
	}

	/* need to check for an allocated sid */

	return NT_STATUS_INVALID_SID;
}


/*
  add to the lsa_RefDomainList for LookupSids and LookupNames
*/
static NTSTATUS dcesrv_lsa_authority_list(struct lsa_policy_state *state, TALLOC_CTX *mem_ctx, 
					  enum lsa_SidType rtype,
					  const char *authority_name,
					  struct dom_sid *sid, 
					  struct lsa_RefDomainList *domains,
					  uint32_t *sid_index)
{
	struct dom_sid *authority_sid;
	uint32_t i;

	if (rtype != SID_NAME_DOMAIN) {
		authority_sid = dom_sid_dup(mem_ctx, sid);
		if (authority_sid == NULL) {
			return NT_STATUS_NO_MEMORY;
		}
		authority_sid->num_auths--;
	} else {
		authority_sid = sid;
	}

	/* see if we've already done this authority name */
	for (i=0;i<domains->count;i++) {
		if (strcasecmp_m(authority_name, domains->domains[i].name.string) == 0) {
			*sid_index = i;
			return NT_STATUS_OK;
		}
	}

	domains->domains = talloc_realloc(domains, 
					  domains->domains,
					  struct lsa_DomainInfo,
					  domains->count+1);
	if (domains->domains == NULL) {
		return NT_STATUS_NO_MEMORY;
	}
	domains->domains[i].name.string = authority_name;
	domains->domains[i].sid         = authority_sid;
	domains->count++;
	domains->max_size = LSA_REF_DOMAIN_LIST_MULTIPLIER * domains->count;
	*sid_index = i;
	
	return NT_STATUS_OK;
}

/*
  lookup a name for 1 SID
*/
static NTSTATUS dcesrv_lsa_lookup_sid(struct lsa_policy_state *state, TALLOC_CTX *mem_ctx,
				      struct dom_sid *sid, const char *sid_str,
				      const char **authority_name, 
				      const char **name, enum lsa_SidType *rtype)
{
	NTSTATUS status;
	int ret;
	uint32_t atype;
	struct ldb_message **res;
	struct ldb_dn *domain_dn;
	const char * const attrs[] = { "sAMAccountName", "sAMAccountType", "cn", NULL};

	status = lookup_well_known_sids(mem_ctx, sid_str, authority_name, name, rtype);
	if (NT_STATUS_IS_OK(status)) {
		return status;
	}

	if (dom_sid_in_domain(state->domain_sid, sid)) {
		*authority_name = state->domain_name;
		domain_dn = state->domain_dn;
	} else if (dom_sid_in_domain(state->builtin_sid, sid)) {
		*authority_name = NAME_BUILTIN;
		domain_dn = state->builtin_dn;
	} else {
		/* Not well known, our domain or built in */

		/* In future, we must look at SID histories, and at trusted domains via winbind */

		return NT_STATUS_NOT_FOUND;
	}

	/* need to re-add a check for an allocated sid */

	ret = gendb_search(state->sam_ldb, mem_ctx, domain_dn, &res, attrs, 
			   "objectSid=%s", ldap_encode_ndr_dom_sid(mem_ctx, sid));
	if ((ret < 0) || (ret > 1)) {
		return NT_STATUS_INTERNAL_DB_CORRUPTION;
	}
	if (ret == 0) {
		return NT_STATUS_NOT_FOUND;
	}

	*name = ldb_msg_find_attr_as_string(res[0], "sAMAccountName", NULL);
	if (!*name) {
		*name = ldb_msg_find_attr_as_string(res[0], "cn", NULL);
		if (!*name) {
			*name = talloc_strdup(mem_ctx, sid_str);
			NT_STATUS_HAVE_NO_MEMORY(*name);
		}
	}

	atype = samdb_result_uint(res[0], "sAMAccountType", 0);
	*rtype = ds_atype_map(atype);

	return NT_STATUS_OK;
}


/*
  lsa_LookupSids2
*/
NTSTATUS dcesrv_lsa_LookupSids2(struct dcesrv_call_state *dce_call,
				TALLOC_CTX *mem_ctx,
				struct lsa_LookupSids2 *r)
{
	struct lsa_policy_state *state;
	struct lsa_RefDomainList *domains = NULL;
	uint32_t i;
	NTSTATUS status = NT_STATUS_OK;

	if (r->in.level < LSA_LOOKUP_NAMES_ALL ||
	    r->in.level > LSA_LOOKUP_NAMES_RODC_REFERRAL_TO_FULL_DC) {
		return NT_STATUS_INVALID_PARAMETER;
	}

	*r->out.domains = NULL;

	/* NOTE: the WSPP test suite tries SIDs with invalid revision numbers,
	   and expects NT_STATUS_INVALID_PARAMETER back - we just treat it as 
	   an unknown SID. We could add a SID validator here. (tridge) 
	   MS-DTYP 2.4.2
	*/

	status = dcesrv_lsa_get_policy_state(dce_call, mem_ctx, &state);
	if (!NT_STATUS_IS_OK(status)) {
		return status;
	}

	domains = talloc_zero(r->out.domains,  struct lsa_RefDomainList);
	if (domains == NULL) {
		return NT_STATUS_NO_MEMORY;
	}
	*r->out.domains = domains;

	r->out.names = talloc_zero(mem_ctx,  struct lsa_TransNameArray2);
	if (r->out.names == NULL) {
		return NT_STATUS_NO_MEMORY;
	}

	*r->out.count = 0;

	r->out.names->names = talloc_array(r->out.names, struct lsa_TranslatedName2, 
					     r->in.sids->num_sids);
	if (r->out.names->names == NULL) {
		return NT_STATUS_NO_MEMORY;
	}

	for (i=0;i<r->in.sids->num_sids;i++) {
		struct dom_sid *sid = r->in.sids->sids[i].sid;
		char *sid_str = dom_sid_string(mem_ctx, sid);
		const char *name, *authority_name;
		enum lsa_SidType rtype;
		uint32_t sid_index;
		NTSTATUS status2;

		r->out.names->count++;

		r->out.names->names[i].sid_type    = SID_NAME_UNKNOWN;
		r->out.names->names[i].name.string = sid_str;
		r->out.names->names[i].sid_index   = 0xFFFFFFFF;
		r->out.names->names[i].unknown     = 0;

		if (sid_str == NULL) {
			r->out.names->names[i].name.string = "(SIDERROR)";
			status = STATUS_SOME_UNMAPPED;
			continue;
		}

		status2 = dcesrv_lsa_lookup_sid(state, mem_ctx, sid, sid_str, 
						&authority_name, &name, &rtype);
		if (!NT_STATUS_IS_OK(status2)) {
			status = STATUS_SOME_UNMAPPED;
			continue;
		}

		/* set up the authority table */
		status2 = dcesrv_lsa_authority_list(state, mem_ctx, rtype, 
						    authority_name, sid, 
						    domains, &sid_index);
		if (!NT_STATUS_IS_OK(status2)) {
			continue;
		}

		r->out.names->names[i].sid_type    = rtype;
		r->out.names->names[i].name.string = name;
		r->out.names->names[i].sid_index   = sid_index;
		r->out.names->names[i].unknown     = 0;

		(*r->out.count)++;
	}

	if (*r->out.count == 0) {
		return NT_STATUS_NONE_MAPPED;
	}
	if (*r->out.count != r->in.sids->num_sids) {
		return STATUS_SOME_UNMAPPED;
	}

	return NT_STATUS_OK;
}


/*
  lsa_LookupSids3

  Identical to LookupSids2, but doesn't take a policy handle
  
*/
NTSTATUS dcesrv_lsa_LookupSids3(struct dcesrv_call_state *dce_call,
				TALLOC_CTX *mem_ctx,
				struct lsa_LookupSids3 *r)
{
	struct lsa_LookupSids2 r2;
	struct lsa_OpenPolicy2 pol;
	NTSTATUS status;
	struct dcesrv_handle *h;

	ZERO_STRUCT(r2);
	
	/* No policy handle on the wire, so make one up here */
	r2.in.handle = talloc(mem_ctx, struct policy_handle);
	if (!r2.in.handle) {
		return NT_STATUS_NO_MEMORY;
	}

	pol.out.handle = r2.in.handle;
	pol.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
	pol.in.attr = NULL;
	pol.in.system_name = NULL;
	status = dcesrv_lsa_OpenPolicy2(dce_call, mem_ctx, &pol);
	if (!NT_STATUS_IS_OK(status)) {
		return status;
	}

	/* ensure this handle goes away at the end of this call */
	DCESRV_PULL_HANDLE(h, r2.in.handle, LSA_HANDLE_POLICY);
	talloc_steal(mem_ctx, h);

	r2.in.sids     = r->in.sids;
	r2.in.names    = r->in.names;
	r2.in.level    = r->in.level;
	r2.in.count    = r->in.count;
	r2.in.lookup_options = r->in.lookup_options;
	r2.in.client_revision = r->in.client_revision;
	r2.out.count   = r->out.count;
	r2.out.names   = r->out.names;
	r2.out.domains = r->out.domains;

	status = dcesrv_lsa_LookupSids2(dce_call, mem_ctx, &r2);

	r->out.domains = r2.out.domains;
	r->out.names   = r2.out.names;
	r->out.count   = r2.out.count;

	return status;
}


/* 
  lsa_LookupSids 
*/
NTSTATUS dcesrv_lsa_LookupSids(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
			       struct lsa_LookupSids *r)
{
	struct lsa_LookupSids2 r2;
	NTSTATUS status;
	uint32_t i;

	ZERO_STRUCT(r2);

	r2.in.handle   = r->in.handle;
	r2.in.sids     = r->in.sids;
	r2.in.names    = NULL;
	r2.in.level    = r->in.level;
	r2.in.count    = r->in.count;
	r2.in.lookup_options = 0;
	r2.in.client_revision = 0;
	r2.out.count   = r->out.count;
	r2.out.names   = NULL;
	r2.out.domains = r->out.domains;

	status = dcesrv_lsa_LookupSids2(dce_call, mem_ctx, &r2);
	/* we deliberately don't check for error from the above,
	   as even on error we are supposed to return the names  */

	r->out.domains = r2.out.domains;
	if (!r2.out.names) {
		r->out.names = NULL;
		return status;
	}

	r->out.names = talloc(mem_ctx, struct lsa_TransNameArray);
	if (r->out.names == NULL) {
		return NT_STATUS_NO_MEMORY;
	}
	r->out.names->count = r2.out.names->count;
	r->out.names->names = talloc_array(r->out.names, struct lsa_TranslatedName, 
					     r->out.names->count);
	if (r->out.names->names == NULL) {
		return NT_STATUS_NO_MEMORY;
	}
	for (i=0;i<r->out.names->count;i++) {
		r->out.names->names[i].sid_type    = r2.out.names->names[i].sid_type;
		r->out.names->names[i].name.string = r2.out.names->names[i].name.string;
		r->out.names->names[i].sid_index   = r2.out.names->names[i].sid_index;
	}

	return status;
}


/*
  lsa_LookupNames3
*/
NTSTATUS dcesrv_lsa_LookupNames3(struct dcesrv_call_state *dce_call,
				 TALLOC_CTX *mem_ctx,
				 struct lsa_LookupNames3 *r)
{
	struct lsa_policy_state *policy_state;
	struct dcesrv_handle *policy_handle;
	uint32_t i;
	struct loadparm_context *lp_ctx = dce_call->conn->dce_ctx->lp_ctx;
	struct lsa_RefDomainList *domains;

	DCESRV_PULL_HANDLE(policy_handle, r->in.handle, LSA_HANDLE_POLICY);

	if (r->in.level < LSA_LOOKUP_NAMES_ALL ||
	    r->in.level > LSA_LOOKUP_NAMES_RODC_REFERRAL_TO_FULL_DC) {
		return NT_STATUS_INVALID_PARAMETER;
	}

	policy_state = policy_handle->data;

	*r->out.domains = NULL;

	domains = talloc_zero(mem_ctx,  struct lsa_RefDomainList);
	if (domains == NULL) {
		return NT_STATUS_NO_MEMORY;
	}
	*r->out.domains = domains;

	r->out.sids = talloc_zero(mem_ctx,  struct lsa_TransSidArray3);
	if (r->out.sids == NULL) {
		return NT_STATUS_NO_MEMORY;
	}

	*r->out.count = 0;

	r->out.sids->sids = talloc_array(r->out.sids, struct lsa_TranslatedSid3, 
					   r->in.num_names);
	if (r->out.sids->sids == NULL) {
		return NT_STATUS_NO_MEMORY;
	}

	for (i=0;i<r->in.num_names;i++) {
		const char *name = r->in.names[i].string;
		const char *authority_name;
		struct dom_sid *sid;
		uint32_t sid_index, rid;
		enum lsa_SidType rtype;
		NTSTATUS status2;

		r->out.sids->count++;

		r->out.sids->sids[i].sid_type    = SID_NAME_UNKNOWN;
		r->out.sids->sids[i].sid         = NULL;
		r->out.sids->sids[i].sid_index   = 0xFFFFFFFF;
		r->out.sids->sids[i].flags       = 0;

		status2 = dcesrv_lsa_lookup_name(dce_call->event_ctx, lp_ctx, policy_state, mem_ctx, name, 
						 &authority_name, &sid, &rtype, &rid);
		if (!NT_STATUS_IS_OK(status2) || sid->num_auths == 0) {
			continue;
		}

		status2 = dcesrv_lsa_authority_list(policy_state, mem_ctx, rtype, authority_name, 
						    sid, domains, &sid_index);
		if (!NT_STATUS_IS_OK(status2)) {
			continue;
		}

		r->out.sids->sids[i].sid_type    = rtype;
		r->out.sids->sids[i].sid         = sid;
		r->out.sids->sids[i].sid_index   = sid_index;
		r->out.sids->sids[i].flags       = 0;

		(*r->out.count)++;
	}
	
	if (*r->out.count == 0) {
		return NT_STATUS_NONE_MAPPED;
	}
	if (*r->out.count != r->in.num_names) {
		return STATUS_SOME_UNMAPPED;
	}

	return NT_STATUS_OK;
}

/* 
  lsa_LookupNames4

  Identical to LookupNames3, but doesn't take a policy handle
  
*/
NTSTATUS dcesrv_lsa_LookupNames4(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
				 struct lsa_LookupNames4 *r)
{
	struct lsa_LookupNames3 r2;
	struct lsa_OpenPolicy2 pol;
	NTSTATUS status;
	struct dcesrv_handle *h;

	ZERO_STRUCT(r2);

	/* No policy handle on the wire, so make one up here */
	r2.in.handle = talloc(mem_ctx, struct policy_handle);
	if (!r2.in.handle) {
		return NT_STATUS_NO_MEMORY;
	}

	pol.out.handle = r2.in.handle;
	pol.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
	pol.in.attr = NULL;
	pol.in.system_name = NULL;
	status = dcesrv_lsa_OpenPolicy2(dce_call, mem_ctx, &pol);
	if (!NT_STATUS_IS_OK(status)) {
		return status;
	}

	/* ensure this handle goes away at the end of this call */
	DCESRV_PULL_HANDLE(h, r2.in.handle, LSA_HANDLE_POLICY);
	talloc_steal(mem_ctx, h);

	r2.in.num_names = r->in.num_names;
	r2.in.names = r->in.names;
	r2.in.level = r->in.level;
	r2.in.sids = r->in.sids;
	r2.in.count = r->in.count;
	r2.in.lookup_options = r->in.lookup_options;
	r2.in.client_revision = r->in.client_revision;
	r2.out.domains = r->out.domains;
	r2.out.sids = r->out.sids;
	r2.out.count = r->out.count;
	
	status = dcesrv_lsa_LookupNames3(dce_call, mem_ctx, &r2);
	
	r->out.domains = r2.out.domains;
	r->out.sids = r2.out.sids;
	r->out.count = r2.out.count;
	return status;
}

/*
  lsa_LookupNames2
*/
NTSTATUS dcesrv_lsa_LookupNames2(struct dcesrv_call_state *dce_call,
				 TALLOC_CTX *mem_ctx,
				 struct lsa_LookupNames2 *r)
{
	struct lsa_policy_state *state;
	struct dcesrv_handle *h;
	uint32_t i;
	struct loadparm_context *lp_ctx = dce_call->conn->dce_ctx->lp_ctx;
	struct lsa_RefDomainList *domains;

	*r->out.domains = NULL;

	DCESRV_PULL_HANDLE(h, r->in.handle, LSA_HANDLE_POLICY);

	if (r->in.level < LSA_LOOKUP_NAMES_ALL ||
	    r->in.level > LSA_LOOKUP_NAMES_RODC_REFERRAL_TO_FULL_DC) {
		return NT_STATUS_INVALID_PARAMETER;
	}

	state = h->data;

	domains = talloc_zero(mem_ctx,  struct lsa_RefDomainList);
	if (domains == NULL) {
		return NT_STATUS_NO_MEMORY;
	}
	*r->out.domains = domains;

	r->out.sids = talloc_zero(mem_ctx,  struct lsa_TransSidArray2);
	if (r->out.sids == NULL) {
		return NT_STATUS_NO_MEMORY;
	}

	*r->out.count = 0;

	r->out.sids->sids = talloc_array(r->out.sids, struct lsa_TranslatedSid2, 
					   r->in.num_names);
	if (r->out.sids->sids == NULL) {
		return NT_STATUS_NO_MEMORY;
	}

	for (i=0;i<r->in.num_names;i++) {
		const char *name = r->in.names[i].string;
		const char *authority_name;
		struct dom_sid *sid;
		uint32_t rtype, sid_index, rid=0;
		NTSTATUS status2;

		r->out.sids->count++;

		r->out.sids->sids[i].sid_type    = SID_NAME_UNKNOWN;
		/* MS-LSAT 3.1.4.7 - rid zero is considered equivalent
		   to sid NULL - so we should return 0 rid for
		   unmapped entries */
		r->out.sids->sids[i].rid         = 0;
		r->out.sids->sids[i].sid_index   = 0xFFFFFFFF;
		r->out.sids->sids[i].unknown     = 0;

		status2 = dcesrv_lsa_lookup_name(dce_call->event_ctx, lp_ctx, state, mem_ctx, name, 
						 &authority_name, &sid, &rtype, &rid);
		if (!NT_STATUS_IS_OK(status2)) {
			continue;
		}

		status2 = dcesrv_lsa_authority_list(state, mem_ctx, rtype, authority_name, 
						    sid, domains, &sid_index);
		if (!NT_STATUS_IS_OK(status2)) {
			continue;
		}

		r->out.sids->sids[i].sid_type    = rtype;
		r->out.sids->sids[i].rid         = rid;
		r->out.sids->sids[i].sid_index   = sid_index;
		r->out.sids->sids[i].unknown     = 0;

		(*r->out.count)++;
	}
	
	if (*r->out.count == 0) {
		return NT_STATUS_NONE_MAPPED;
	}
	if (*r->out.count != r->in.num_names) {
		return STATUS_SOME_UNMAPPED;
	}

	return NT_STATUS_OK;
}

/* 
  lsa_LookupNames 
*/
NTSTATUS dcesrv_lsa_LookupNames(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
		       struct lsa_LookupNames *r)
{
	struct lsa_LookupNames2 r2;
	NTSTATUS status;
	uint32_t i;

	ZERO_STRUCT(r2);

	r2.in.handle    = r->in.handle;
	r2.in.num_names = r->in.num_names;
	r2.in.names     = r->in.names;
	r2.in.sids      = NULL;
	r2.in.level     = r->in.level;
	r2.in.count     = r->in.count;
	r2.in.lookup_options = 0;
	r2.in.client_revision = 0;
	r2.out.count    = r->out.count;
	r2.out.domains	= r->out.domains;

	status = dcesrv_lsa_LookupNames2(dce_call, mem_ctx, &r2);
	if (r2.out.sids == NULL) {
		return status;
	}

	r->out.sids = talloc(mem_ctx, struct lsa_TransSidArray);
	if (r->out.sids == NULL) {
		return NT_STATUS_NO_MEMORY;
	}
	r->out.sids->count = r2.out.sids->count;
	r->out.sids->sids = talloc_array(r->out.sids, struct lsa_TranslatedSid, 
					   r->out.sids->count);
	if (r->out.sids->sids == NULL) {
		return NT_STATUS_NO_MEMORY;
	}
	for (i=0;i<r->out.sids->count;i++) {
		r->out.sids->sids[i].sid_type    = r2.out.sids->sids[i].sid_type;
		r->out.sids->sids[i].rid         = r2.out.sids->sids[i].rid;
		r->out.sids->sids[i].sid_index   = r2.out.sids->sids[i].sid_index;
	}

	return status;
}