summaryrefslogtreecommitdiff
path: root/source3/utils/net_rpc_samsync.c
blob: ed69f8a326b15850fdc67df1f1f18d707cabbde9 (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
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
/* 
   Unix SMB/CIFS implementation.
   dump the remote SAM using rpc samsync operations

   Copyright (C) Andrew Tridgell 2002
   Copyright (C) Tim Potter 2001,2002
   Modified by Volker Lendecke 2002

   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 2 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, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#include "includes.h"
#include "../utils/net.h"

extern DOM_SID global_sid_Builtin; 

static void display_group_mem_info(uint32 rid, SAM_GROUP_MEM_INFO *g)
{
	int i;
	d_printf("Group mem %u: ", rid);
	for (i=0;i<g->num_members;i++) {
		d_printf("%u ", g->rids[i]);
	}
	d_printf("\n");
}

static void display_alias_info(uint32 rid, SAM_ALIAS_INFO *a)
{
	d_printf("Alias '%s' ", unistr2_static(&a->uni_als_name));
	d_printf("desc='%s' rid=%u\n", unistr2_static(&a->uni_als_desc), a->als_rid);
}

static void display_alias_mem(uint32 rid, SAM_ALIAS_MEM_INFO *a)
{
	int i;
	d_printf("Alias rid %u: ", rid);
	for (i=0;i<a->num_members;i++) {
		d_printf("%s ", sid_string_static(&a->sids[i].sid));
	}
	d_printf("\n");
}

static void display_account_info(uint32 rid, SAM_ACCOUNT_INFO *a)
{
	fstring hex_nt_passwd, hex_lm_passwd;
	uchar lm_passwd[16], nt_passwd[16];
	static uchar zero_buf[16];

	/* Decode hashes from password hash (if they are not NULL) */
	
	if (memcmp(a->pass.buf_lm_pwd, zero_buf, 16) != 0) {
		sam_pwd_hash(a->user_rid, a->pass.buf_lm_pwd, lm_passwd, 0);
		smbpasswd_sethexpwd(hex_lm_passwd, lm_passwd, a->acb_info);
	} else {
		smbpasswd_sethexpwd(hex_lm_passwd, NULL, 0);
	}

	if (memcmp(a->pass.buf_nt_pwd, zero_buf, 16) != 0) {
		sam_pwd_hash(a->user_rid, a->pass.buf_nt_pwd, nt_passwd, 0);
		smbpasswd_sethexpwd(hex_nt_passwd, nt_passwd, a->acb_info);
	} else {
		smbpasswd_sethexpwd(hex_nt_passwd, NULL, 0);
	}
	
	printf("%s:%d:%s:%s:%s:LCT-0\n", unistr2_static(&a->uni_acct_name),
	       a->user_rid, hex_lm_passwd, hex_nt_passwd,
	       smbpasswd_encode_acb_info(a->acb_info));
}

static void display_domain_info(SAM_DOMAIN_INFO *a)
{
	d_printf("Domain name: %s\n", unistr2_static(&a->uni_dom_name));
}

static void display_group_info(uint32 rid, SAM_GROUP_INFO *a)
{
	d_printf("Group '%s' ", unistr2_static(&a->uni_grp_name));
	d_printf("desc='%s', rid=%u\n", unistr2_static(&a->uni_grp_desc), rid);
}

static void display_sam_entry(SAM_DELTA_HDR *hdr_delta, SAM_DELTA_CTR *delta)
{
	switch (hdr_delta->type) {
	case SAM_DELTA_ACCOUNT_INFO:
		display_account_info(hdr_delta->target_rid, &delta->account_info);
		break;
	case SAM_DELTA_GROUP_MEM:
		display_group_mem_info(hdr_delta->target_rid, &delta->grp_mem_info);
		break;
	case SAM_DELTA_ALIAS_INFO:
		display_alias_info(hdr_delta->target_rid, &delta->alias_info);
		break;
	case SAM_DELTA_ALIAS_MEM:
		display_alias_mem(hdr_delta->target_rid, &delta->als_mem_info);
		break;
	case SAM_DELTA_DOMAIN_INFO:
		display_domain_info(&delta->domain_info);
		break;
	case SAM_DELTA_GROUP_INFO:
		display_group_info(hdr_delta->target_rid, &delta->group_info);
		break;
		/* The following types are recognised but not handled */
	case SAM_DELTA_RENAME_GROUP:
		d_printf("SAM_DELTA_RENAME_GROUP not handled\n");
		break;
	case SAM_DELTA_RENAME_USER:
		d_printf("SAM_DELTA_RENAME_USER not handled\n");
		break;
	case SAM_DELTA_RENAME_ALIAS:
		d_printf("SAM_DELTA_RENAME_ALIAS not handled\n");
		break;
	case SAM_DELTA_POLICY_INFO:
		d_printf("SAM_DELTA_POLICY_INFO not handled\n");
		break;
	case SAM_DELTA_TRUST_DOMS:
		d_printf("SAM_DELTA_TRUST_DOMS not handled\n");
		break;
	case SAM_DELTA_PRIVS_INFO:
		d_printf("SAM_DELTA_PRIVS_INFO not handled\n");
		break;
	case SAM_DELTA_SECRET_INFO:
		d_printf("SAM_DELTA_SECRET_INFO not handled\n");
		break;
	case SAM_DELTA_DELETE_GROUP:
		d_printf("SAM_DELTA_DELETE_GROUP not handled\n");
		break;
	case SAM_DELTA_DELETE_USER:
		d_printf("SAM_DELTA_DELETE_USER not handled\n");
		break;
	case SAM_DELTA_MODIFIED_COUNT:
		d_printf("SAM_DELTA_MODIFIED_COUNT not handled\n");
		break;
	default:
		d_printf("Unknown delta record type %d\n", hdr_delta->type);
		break;
	}
}


static void dump_database(struct cli_state *cli, unsigned db_type, DOM_CRED *ret_creds)
{
	unsigned sync_context = 0;
        NTSTATUS result;
	int i;
        TALLOC_CTX *mem_ctx;
        SAM_DELTA_HDR *hdr_deltas;
        SAM_DELTA_CTR *deltas;
        uint32 num_deltas;

	if (!(mem_ctx = talloc_init("dump_database"))) {
		return;
	}

	switch( db_type ) {
	case SAM_DATABASE_DOMAIN:
		d_printf("Dumping DOMAIN database\n");
		break;
	case SAM_DATABASE_BUILTIN:
		d_printf("Dumping BUILTIN database\n");
		break;
	case SAM_DATABASE_PRIVS:
		d_printf("Dumping PRIVS databases\n");
		break;
	default:
		d_printf("Dumping unknown database type %u\n", db_type );
		break;
	}

	do {
		result = cli_netlogon_sam_sync(cli, mem_ctx, ret_creds, db_type,
					       sync_context,
					       &num_deltas, &hdr_deltas, &deltas);
		clnt_deal_with_creds(cli->sess_key, &(cli->clnt_cred), ret_creds);
                for (i = 0; i < num_deltas; i++) {
			display_sam_entry(&hdr_deltas[i], &deltas[i]);
                }
		sync_context += 1;
	} while (NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES));

	talloc_destroy(mem_ctx);
}

/* dump sam database via samsync rpc calls */
int rpc_samdump(int argc, const char **argv)
{
	struct cli_state *cli = NULL;
	uchar trust_password[16];
	DOM_CRED ret_creds;
	uint32 sec_channel;

	ZERO_STRUCT(ret_creds);

	/* Connect to remote machine */
	if (!(cli = net_make_ipc_connection(NET_FLAGS_ANONYMOUS | NET_FLAGS_PDC))) {
		return 1;
	}

	fstrcpy(cli->domain, lp_workgroup());

	if (!cli_nt_session_open(cli, PI_NETLOGON)) {
		DEBUG(0,("Could not open connection to NETLOGON pipe\n"));
		goto fail;
	}

	if (!secrets_fetch_trust_account_password(lp_workgroup(),
						  trust_password,
						  NULL, &sec_channel)) {
		DEBUG(0,("Could not fetch trust account password\n"));
		goto fail;
	}

	if (!NT_STATUS_IS_OK(cli_nt_establish_netlogon(cli, sec_channel,
						       trust_password))) {
		DEBUG(0,("Error connecting to NETLOGON pipe\n"));
		goto fail;
	}

	dump_database(cli, SAM_DATABASE_DOMAIN, &ret_creds);
	dump_database(cli, SAM_DATABASE_BUILTIN, &ret_creds);
	dump_database(cli, SAM_DATABASE_PRIVS, &ret_creds);

	cli_nt_session_close(cli);
        
        return 0;

fail:
	if (cli) {
		cli_nt_session_close(cli);
	}
	return -1;
}

/* Convert a SAM_ACCOUNT_DELTA to a SAM_ACCOUNT. */
#define STRING_CHANGED (old_string && !new_string) ||\
		    (!old_string && new_string) ||\
		(old_string && new_string && (strcmp(old_string, new_string) != 0))

static NTSTATUS
sam_account_from_delta(SAM_ACCOUNT *account, SAM_ACCOUNT_INFO *delta)
{
	const char *old_string, *new_string;
	time_t unix_time, stored_time;
	uchar lm_passwd[16], nt_passwd[16];
	static uchar zero_buf[16];

	/* Username, fullname, home dir, dir drive, logon script, acct
	   desc, workstations, profile. */

	if (delta->hdr_acct_name.buffer) {
		old_string = pdb_get_nt_username(account);
		new_string = unistr2_static(&delta->uni_acct_name);

		if (STRING_CHANGED) {
			pdb_set_nt_username(account, new_string, PDB_CHANGED);
              
		}
         
		/* Unix username is the same - for sanity */
		old_string = pdb_get_username( account );
		if (STRING_CHANGED) {
			pdb_set_username(account, new_string, PDB_CHANGED);
		}
	}

	if (delta->hdr_full_name.buffer) {
		old_string = pdb_get_fullname(account);
		new_string = unistr2_static(&delta->uni_full_name);

		if (STRING_CHANGED)
			pdb_set_fullname(account, new_string, PDB_CHANGED);
	}

	if (delta->hdr_home_dir.buffer) {
		old_string = pdb_get_homedir(account);
		new_string = unistr2_static(&delta->uni_home_dir);

		if (STRING_CHANGED)
			pdb_set_homedir(account, new_string, PDB_CHANGED);
	}

	if (delta->hdr_dir_drive.buffer) {
		old_string = pdb_get_dir_drive(account);
		new_string = unistr2_static(&delta->uni_dir_drive);

		if (STRING_CHANGED)
			pdb_set_dir_drive(account, new_string, PDB_CHANGED);
	}

	if (delta->hdr_logon_script.buffer) {
		old_string = pdb_get_logon_script(account);
		new_string = unistr2_static(&delta->uni_logon_script);

		if (STRING_CHANGED)
			pdb_set_logon_script(account, new_string, PDB_CHANGED);
	}

	if (delta->hdr_acct_desc.buffer) {
		old_string = pdb_get_acct_desc(account);
		new_string = unistr2_static(&delta->uni_acct_desc);

		if (STRING_CHANGED)
			pdb_set_acct_desc(account, new_string, PDB_CHANGED);
	}

	if (delta->hdr_workstations.buffer) {
		old_string = pdb_get_workstations(account);
		new_string = unistr2_static(&delta->uni_workstations);

		if (STRING_CHANGED)
			pdb_set_workstations(account, new_string, PDB_CHANGED);
	}

	if (delta->hdr_profile.buffer) {
		old_string = pdb_get_profile_path(account);
		new_string = unistr2_static(&delta->uni_profile);

		if (STRING_CHANGED)
			pdb_set_profile_path(account, new_string, PDB_CHANGED);
	}

	/* User and group sid */
	if (pdb_get_user_rid(account) != delta->user_rid)
		pdb_set_user_sid_from_rid(account, delta->user_rid, PDB_CHANGED);
	if (pdb_get_group_rid(account) != delta->group_rid)
		pdb_set_group_sid_from_rid(account, delta->group_rid, PDB_CHANGED);

	/* Logon and password information */
	if (!nt_time_is_zero(&delta->logon_time)) {
		unix_time = nt_time_to_unix(&delta->logon_time);
		stored_time = pdb_get_logon_time(account);
		if (stored_time != unix_time)
			pdb_set_logon_time(account, unix_time, PDB_CHANGED);
	}

	if (!nt_time_is_zero(&delta->logoff_time)) {
		unix_time = nt_time_to_unix(&delta->logoff_time);
		stored_time = pdb_get_logoff_time(account);
		if (stored_time != unix_time)
			pdb_set_logoff_time(account, unix_time,PDB_CHANGED);
	}

	if (pdb_get_logon_divs(account) != delta->logon_divs)
		pdb_set_logon_divs(account, delta->logon_divs, PDB_CHANGED);

	/* TODO: logon hours */
	/* TODO: bad password count */
	/* TODO: logon count */

	if (!nt_time_is_zero(&delta->pwd_last_set_time)) {
		unix_time = nt_time_to_unix(&delta->pwd_last_set_time);
		stored_time = pdb_get_pass_last_set_time(account);
		if (stored_time != unix_time)
			pdb_set_pass_last_set_time(account, unix_time, PDB_CHANGED);
	}

#if 0
/*	No kickoff time in the delta? */
	if (!nt_time_is_zero(&delta->kickoff_time)) {
		unix_time = nt_time_to_unix(&delta->kickoff_time);
		stored_time = pdb_get_kickoff_time(account);
		if (stored_time != unix_time)
			pdb_set_kickoff_time(account, unix_time, PDB_CHANGED);
	}
#endif

	/* Decode hashes from password hash 
	   Note that win2000 may send us all zeros for the hashes if it doesn't 
	   think this channel is secure enough - don't set the passwords at all
	   in that case
	*/
	if (memcmp(delta->pass.buf_lm_pwd, zero_buf, 16) != 0) {
		sam_pwd_hash(delta->user_rid, delta->pass.buf_lm_pwd, lm_passwd, 0);
		pdb_set_lanman_passwd(account, lm_passwd, PDB_CHANGED);
	}

	if (memcmp(delta->pass.buf_nt_pwd, zero_buf, 16) != 0) {
		sam_pwd_hash(delta->user_rid, delta->pass.buf_nt_pwd, nt_passwd, 0);
		pdb_set_nt_passwd(account, nt_passwd, PDB_CHANGED);
	}

	/* TODO: account expiry time */

	if (pdb_get_acct_ctrl(account) != delta->acb_info)
		pdb_set_acct_ctrl(account, delta->acb_info, PDB_CHANGED);

	pdb_set_domain(account, lp_workgroup(), PDB_CHANGED);

	return NT_STATUS_OK;
}

static NTSTATUS fetch_account_info(uint32 rid, SAM_ACCOUNT_INFO *delta)
{
	NTSTATUS nt_ret;
	fstring account;
	pstring add_script;
	SAM_ACCOUNT *sam_account=NULL;
	GROUP_MAP map;
	struct group *grp;
	DOM_SID user_sid;
	DOM_SID group_sid;
	struct passwd *passwd;
	fstring sid_string;

	fstrcpy(account, unistr2_static(&delta->uni_acct_name));
	d_printf("Creating account: %s\n", account);

	if (!NT_STATUS_IS_OK(nt_ret = pdb_init_sam(&sam_account)))
		return nt_ret;

	if (!(passwd = Get_Pwnam(account))) {
		/* Create appropriate user */
		if (delta->acb_info & ACB_NORMAL) {
			pstrcpy(add_script, lp_adduser_script());
		} else if ( (delta->acb_info & ACB_WSTRUST) ||
			    (delta->acb_info & ACB_SVRTRUST) ||
			    (delta->acb_info & ACB_DOMTRUST) ) {
			pstrcpy(add_script, lp_addmachine_script());
		} else {
			*add_script = '\0';
			DEBUG(1, ("Unknown user type: %s\n",
				  smbpasswd_encode_acb_info(delta->acb_info)));
		}
		if (*add_script) {
			int add_ret;
			all_string_sub(add_script, "%u", account,
				       sizeof(account));
			add_ret = smbrun(add_script,NULL);
			DEBUG(1,("fetch_account: Running the command `%s' "
				 "gave %d\n", add_script, add_ret));
		} else {
			DEBUG(8,("fetch_account_info: no add user/machine script.  Asking winbindd\n"));
			
			/* don't need a RID allocated since the user already has a SID */
			if ( !winbind_create_user( account, NULL ) )
				DEBUG(4,("fetch_account_info: winbind_create_user() failed\n"));
		}
		
		/* try and find the possible unix account again */
		if ( !(passwd = Get_Pwnam(account)) )
			return NT_STATUS_NO_SUCH_USER;
			
	}
	
	sid_copy(&user_sid, get_global_sam_sid());
	sid_append_rid(&user_sid, delta->user_rid);

	DEBUG(3, ("Attempting to find SID %s for user %s in the passdb\n", sid_to_string(sid_string, &user_sid), account));
	if (!pdb_getsampwsid(sam_account, &user_sid)) {
		sam_account_from_delta(sam_account, delta);
		DEBUG(3, ("Attempting to add user SID %s for user %s in the passdb\n", 
			  sid_to_string(sid_string, &user_sid), pdb_get_username(sam_account)));
		if (!pdb_add_sam_account(sam_account)) {
			DEBUG(1, ("SAM Account for %s failed to be added to the passdb!\n",
				  account));
			return NT_STATUS_ACCESS_DENIED; 
		}
	} else {
		sam_account_from_delta(sam_account, delta);
		DEBUG(3, ("Attempting to update user SID %s for user %s in the passdb\n", 
			  sid_to_string(sid_string, &user_sid), pdb_get_username(sam_account)));
		if (!pdb_update_sam_account(sam_account)) {
			DEBUG(1, ("SAM Account for %s failed to be updated in the passdb!\n",
				  account));
			pdb_free_sam(&sam_account);
			return NT_STATUS_ACCESS_DENIED; 
		}
	}

	group_sid = *pdb_get_group_sid(sam_account);

	if (!pdb_getgrsid(&map, group_sid)) {
		DEBUG(0, ("Primary group of %s has no mapping!\n",
			  pdb_get_username(sam_account)));
	} else {
		if (map.gid != passwd->pw_gid) {
			if (!(grp = getgrgid(map.gid))) {
				DEBUG(0, ("Could not find unix group %lu for user %s (group SID=%s)\n", 
					  (unsigned long)map.gid, pdb_get_username(sam_account), sid_string_static(&group_sid)));
			} else {
				smb_set_primary_group(grp->gr_name, pdb_get_username(sam_account));
			}
		}
	}	

	if ( !passwd ) {
		DEBUG(1, ("No unix user for this account (%s), cannot adjust mappings\n", 
			pdb_get_username(sam_account)));
	}

	pdb_free_sam(&sam_account);
	return nt_ret;
}

static NTSTATUS
fetch_group_info(uint32 rid, SAM_GROUP_INFO *delta)
{
	fstring name;
	fstring comment;
	struct group *grp = NULL;
	DOM_SID group_sid;
	fstring sid_string;
	GROUP_MAP map;
	BOOL insert = True;

	unistr2_to_ascii(name, &delta->uni_grp_name, sizeof(name)-1);
	unistr2_to_ascii(comment, &delta->uni_grp_desc, sizeof(comment)-1);

	/* add the group to the mapping table */
	sid_copy(&group_sid, get_global_sam_sid());
	sid_append_rid(&group_sid, rid);
	sid_to_string(sid_string, &group_sid);

	if (pdb_getgrsid(&map, group_sid)) {
		if ( map.gid != -1 )
			grp = getgrgid(map.gid);
		insert = False;
	}

	if (grp == NULL) {
		gid_t gid;

		/* No group found from mapping, find it from its name. */
		if ((grp = getgrnam(name)) == NULL) {
		
			/* No appropriate group found, create one */
			
			d_printf("Creating unix group: '%s'\n", name);
			
			if (smb_create_group(name, &gid) != 0)
				return NT_STATUS_ACCESS_DENIED;
				
			if ((grp = getgrnam(name)) == NULL)
				return NT_STATUS_ACCESS_DENIED;
		}
	}

	map.gid = grp->gr_gid;
	map.sid = group_sid;
	map.sid_name_use = SID_NAME_DOM_GRP;
	fstrcpy(map.nt_name, name);
	if (delta->hdr_grp_desc.buffer) {
		fstrcpy(map.comment, comment);
	} else {
		fstrcpy(map.comment, "");
	}

	if (insert)
		pdb_add_group_mapping_entry(&map);
	else
		pdb_update_group_mapping_entry(&map);

	return NT_STATUS_OK;
}

static NTSTATUS
fetch_group_mem_info(uint32 rid, SAM_GROUP_MEM_INFO *delta)
{
	int i;
	TALLOC_CTX *t = NULL;
	char **nt_members = NULL;
	char **unix_members;
	DOM_SID group_sid;
	GROUP_MAP map;
	struct group *grp;

	if (delta->num_members == 0) {
		return NT_STATUS_OK;
	}

	sid_copy(&group_sid, get_global_sam_sid());
	sid_append_rid(&group_sid, rid);

	if (!get_domain_group_from_sid(group_sid, &map)) {
		DEBUG(0, ("Could not find global group %d\n", rid));
		return NT_STATUS_NO_SUCH_GROUP;
	}

	if (!(grp = getgrgid(map.gid))) {
		DEBUG(0, ("Could not find unix group %lu\n", (unsigned long)map.gid));
		return NT_STATUS_NO_SUCH_GROUP;
	}

	d_printf("Group members of %s: ", grp->gr_name);

	if (!(t = talloc_init("fetch_group_mem_info"))) {
		DEBUG(0, ("could not talloc_init\n"));
		return NT_STATUS_NO_MEMORY;
	}

	nt_members = talloc_zero(t, sizeof(char *) * delta->num_members);

	for (i=0; i<delta->num_members; i++) {
		NTSTATUS nt_status;
		SAM_ACCOUNT *member = NULL;
		DOM_SID member_sid;

		if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam_talloc(t, &member))) {
			talloc_destroy(t);
			return nt_status;
		}

		sid_copy(&member_sid, get_global_sam_sid());
		sid_append_rid(&member_sid, delta->rids[i]);

		if (!pdb_getsampwsid(member, &member_sid)) {
			DEBUG(1, ("Found bogus group member: %d (member_sid=%s group=%s)\n",
				  delta->rids[i], sid_string_static(&member_sid), grp->gr_name));
			pdb_free_sam(&member);
			continue;
		}

		if (pdb_get_group_rid(member) == rid) {
			d_printf("%s(primary),", pdb_get_username(member));
			pdb_free_sam(&member);
			continue;
		}
		
		d_printf("%s,", pdb_get_username(member));
		nt_members[i] = talloc_strdup(t, pdb_get_username(member));
		pdb_free_sam(&member);
	}

	d_printf("\n");

	unix_members = grp->gr_mem;

	while (*unix_members) {
		BOOL is_nt_member = False;
		for (i=0; i<delta->num_members; i++) {
			if (nt_members[i] == NULL) {
				/* This was a primary group */
				continue;
			}

			if (strcmp(*unix_members, nt_members[i]) == 0) {
				is_nt_member = True;
				break;
			}
		}
		if (!is_nt_member) {
			/* We look at a unix group member that is not
			   an nt group member. So, remove it. NT is
			   boss here. */
			smb_delete_user_group(grp->gr_name, *unix_members);
		}
		unix_members += 1;
	}

	for (i=0; i<delta->num_members; i++) {
		BOOL is_unix_member = False;

		if (nt_members[i] == NULL) {
			/* This was the primary group */
			continue;
		}

		unix_members = grp->gr_mem;

		while (*unix_members) {
			if (strcmp(*unix_members, nt_members[i]) == 0) {
				is_unix_member = True;
				break;
			}
			unix_members += 1;
		}

		if (!is_unix_member) {
			/* We look at a nt group member that is not a
                           unix group member currently. So, add the nt
                           group member. */
			smb_add_user_group(grp->gr_name, nt_members[i]);
		}
	}
	
	talloc_destroy(t);
	return NT_STATUS_OK;
}

static NTSTATUS fetch_alias_info(uint32 rid, SAM_ALIAS_INFO *delta,
				 DOM_SID dom_sid)
{
	fstring name;
	fstring comment;
	struct group *grp = NULL;
	DOM_SID alias_sid;
	fstring sid_string;
	GROUP_MAP map;
	BOOL insert = True;

	unistr2_to_ascii(name, &delta->uni_als_name, sizeof(name)-1);
	unistr2_to_ascii(comment, &delta->uni_als_desc, sizeof(comment)-1);

	/* Find out whether the group is already mapped */
	sid_copy(&alias_sid, &dom_sid);
	sid_append_rid(&alias_sid, rid);
	sid_to_string(sid_string, &alias_sid);

	if (pdb_getgrsid(&map, alias_sid)) {
		grp = getgrgid(map.gid);
		insert = False;
	}

	if (grp == NULL) {
		gid_t gid;

		/* No group found from mapping, find it from its name. */
		if ((grp = getgrnam(name)) == NULL) {
			/* No appropriate group found, create one */
			d_printf("Creating unix group: '%s'\n", name);
			if (smb_create_group(name, &gid) != 0)
				return NT_STATUS_ACCESS_DENIED;
			if ((grp = getgrgid(gid)) == NULL)
				return NT_STATUS_ACCESS_DENIED;
		}
	}

	map.gid = grp->gr_gid;
	map.sid = alias_sid;

	if (sid_equal(&dom_sid, &global_sid_Builtin))
		map.sid_name_use = SID_NAME_WKN_GRP;
	else
		map.sid_name_use = SID_NAME_ALIAS;

	fstrcpy(map.nt_name, name);
	fstrcpy(map.comment, comment);

	if (insert)
		pdb_add_group_mapping_entry(&map);
	else
		pdb_update_group_mapping_entry(&map);

	return NT_STATUS_OK;
}

static NTSTATUS
fetch_alias_mem(uint32 rid, SAM_ALIAS_MEM_INFO *delta, DOM_SID dom_sid)
{
#if 0 	/* 
	 * commented out right now after talking to Volker.  Can't
	 * do much with the membership but seemed a shame to waste
	 * somewhat working code.  Needs testing because the membership
	 * that shows up surprises me.  Also can't do much with groups
	 * in groups (e.g. Domain Admins being a member of Adminsitrators).
	 * --jerry
	 */
	
	int i;
	TALLOC_CTX *t = NULL;
	char **nt_members = NULL;
	char **unix_members;
	DOM_SID group_sid;
	GROUP_MAP map;
	struct group *grp;
	enum SID_NAME_USE sid_type;

	if (delta->num_members == 0) {
		return NT_STATUS_OK;
	}

	sid_copy(&group_sid, &dom_sid);
	sid_append_rid(&group_sid, rid);

	if (sid_equal(&dom_sid, &global_sid_Builtin)) {
		sid_type = SID_NAME_WKN_GRP;
		if (!get_builtin_group_from_sid(group_sid, &map, False)) {
			DEBUG(0, ("Could not find builtin group %s\n", sid_string_static(&group_sid)));
			return NT_STATUS_NO_SUCH_GROUP;
		}
	} else {
		sid_type = SID_NAME_ALIAS;
		if (!get_local_group_from_sid(group_sid, &map, False)) {
			DEBUG(0, ("Could not find local group %s\n", sid_string_static(&group_sid)));
			return NT_STATUS_NO_SUCH_GROUP;
		}
	}	

	if (!(grp = getgrgid(map.gid))) {
		DEBUG(0, ("Could not find unix group %d\n", map.gid));
		return NT_STATUS_NO_SUCH_GROUP;
	}

	d_printf("Group members of %s: ", grp->gr_name);

	if (!(t = talloc_init("fetch_group_mem_info"))) {
		DEBUG(0, ("could not talloc_init\n"));
		return NT_STATUS_NO_MEMORY;
	}

	nt_members = talloc_zero(t, sizeof(char *) * delta->num_members);

	for (i=0; i<delta->num_members; i++) {
		NTSTATUS nt_status;
		SAM_ACCOUNT *member = NULL;
		DOM_SID member_sid;

		if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam_talloc(t, &member))) {
			talloc_destroy(t);
			return nt_status;
		}

		sid_copy(&member_sid, &delta->sids[i].sid);

		if (!pdb_getsampwsid(member, &member_sid)) {
			DEBUG(1, ("Found bogus group member: (member_sid=%s group=%s)\n",
				  sid_string_static(&member_sid), grp->gr_name));
			pdb_free_sam(&member);
			continue;
		}

		if (pdb_get_group_rid(member) == rid) {
			d_printf("%s(primary),", pdb_get_username(member));
			pdb_free_sam(&member);
			continue;
		}
		
		d_printf("%s,", pdb_get_username(member));
		nt_members[i] = talloc_strdup(t, pdb_get_username(member));
		pdb_free_sam(&member);
	}

	d_printf("\n");

	unix_members = grp->gr_mem;

	while (*unix_members) {
		BOOL is_nt_member = False;
		for (i=0; i<delta->num_members; i++) {
			if (nt_members[i] == NULL) {
				/* This was a primary group */
				continue;
			}

			if (strcmp(*unix_members, nt_members[i]) == 0) {
				is_nt_member = True;
				break;
			}
		}
		if (!is_nt_member) {
			/* We look at a unix group member that is not
			   an nt group member. So, remove it. NT is
			   boss here. */
			smb_delete_user_group(grp->gr_name, *unix_members);
		}
		unix_members += 1;
	}

	for (i=0; i<delta->num_members; i++) {
		BOOL is_unix_member = False;

		if (nt_members[i] == NULL) {
			/* This was the primary group */
			continue;
		}

		unix_members = grp->gr_mem;

		while (*unix_members) {
			if (strcmp(*unix_members, nt_members[i]) == 0) {
				is_unix_member = True;
				break;
			}
			unix_members += 1;
		}

		if (!is_unix_member) {
			/* We look at a nt group member that is not a
                           unix group member currently. So, add the nt
                           group member. */
			smb_add_user_group(grp->gr_name, nt_members[i]);
		}
	}
	
	talloc_destroy(t);

#endif	/* end of fetch_alias_mem() */

	return NT_STATUS_OK;
}

static void
fetch_sam_entry(SAM_DELTA_HDR *hdr_delta, SAM_DELTA_CTR *delta,
		DOM_SID dom_sid)
{
	switch(hdr_delta->type) {
	case SAM_DELTA_ACCOUNT_INFO:
		fetch_account_info(hdr_delta->target_rid,
				   &delta->account_info);
		break;
	case SAM_DELTA_GROUP_INFO:
		fetch_group_info(hdr_delta->target_rid,
				 &delta->group_info);
		break;
	case SAM_DELTA_GROUP_MEM:
		fetch_group_mem_info(hdr_delta->target_rid,
				     &delta->grp_mem_info);
		break;
	case SAM_DELTA_ALIAS_INFO:
		fetch_alias_info(hdr_delta->target_rid,
				 &delta->alias_info, dom_sid);
		break;
	case SAM_DELTA_ALIAS_MEM:
		fetch_alias_mem(hdr_delta->target_rid,
				&delta->als_mem_info, dom_sid);
		break;
	/* The following types are recognised but not handled */
	case SAM_DELTA_DOMAIN_INFO:
		d_printf("SAM_DELTA_DOMAIN_INFO not handled\n");
		break;
	case SAM_DELTA_RENAME_GROUP:
		d_printf("SAM_DELTA_RENAME_GROUP not handled\n");
		break;
	case SAM_DELTA_RENAME_USER:
		d_printf("SAM_DELTA_RENAME_USER not handled\n");
		break;
	case SAM_DELTA_RENAME_ALIAS:
		d_printf("SAM_DELTA_RENAME_ALIAS not handled\n");
		break;
	case SAM_DELTA_POLICY_INFO:
		d_printf("SAM_DELTA_POLICY_INFO not handled\n");
		break;
	case SAM_DELTA_TRUST_DOMS:
		d_printf("SAM_DELTA_TRUST_DOMS not handled\n");
		break;
	case SAM_DELTA_PRIVS_INFO:
		d_printf("SAM_DELTA_PRIVS_INFO not handled\n");
		break;
	case SAM_DELTA_SECRET_INFO:
		d_printf("SAM_DELTA_SECRET_INFO not handled\n");
		break;
	case SAM_DELTA_DELETE_GROUP:
		d_printf("SAM_DELTA_DELETE_GROUP not handled\n");
		break;
	case SAM_DELTA_DELETE_USER:
		d_printf("SAM_DELTA_DELETE_USER not handled\n");
		break;
	case SAM_DELTA_MODIFIED_COUNT:
		d_printf("SAM_DELTA_MODIFIED_COUNT not handled\n");
		break;
	default:
		d_printf("Unknown delta record type %d\n", hdr_delta->type);
		break;
	}
}

static NTSTATUS
fetch_database(struct cli_state *cli, unsigned db_type, DOM_CRED *ret_creds,
	       DOM_SID dom_sid)
{
	unsigned sync_context = 0;
        NTSTATUS result;
	int i;
        TALLOC_CTX *mem_ctx;
        SAM_DELTA_HDR *hdr_deltas;
        SAM_DELTA_CTR *deltas;
        uint32 num_deltas;

	if (!(mem_ctx = talloc_init("fetch_database")))
		return NT_STATUS_NO_MEMORY;

	switch( db_type ) {
	case SAM_DATABASE_DOMAIN:
		d_printf("Fetching DOMAIN database\n");
		break;
	case SAM_DATABASE_BUILTIN:
		d_printf("Fetching BUILTIN database\n");
		break;
	case SAM_DATABASE_PRIVS:
		d_printf("Fetching PRIVS databases\n");
		break;
	default:
		d_printf("Fetching unknown database type %u\n", db_type );
		break;
	}

	do {
		result = cli_netlogon_sam_sync(cli, mem_ctx, ret_creds,
					       db_type, sync_context,
					       &num_deltas,
					       &hdr_deltas, &deltas);

		if (NT_STATUS_IS_OK(result) ||
		    NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES)) {

			clnt_deal_with_creds(cli->sess_key, &(cli->clnt_cred),
					     ret_creds);

			for (i = 0; i < num_deltas; i++) {
				fetch_sam_entry(&hdr_deltas[i], &deltas[i], dom_sid);
			}
		} else
			return result;

		sync_context += 1;
	} while (NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES));

	talloc_destroy(mem_ctx);

	return result;
}

/* dump sam database via samsync rpc calls */
int rpc_vampire(int argc, const char **argv)
{
        NTSTATUS result;
	struct cli_state *cli = NULL;
	uchar trust_password[16];
	DOM_CRED ret_creds;
	DOM_SID dom_sid;
	uint32 sec_channel;

	ZERO_STRUCT(ret_creds);

	/* Connect to remote machine */
	if (!(cli = net_make_ipc_connection(NET_FLAGS_ANONYMOUS |
					    NET_FLAGS_PDC))) {
		return 1;
	}

	if (!cli_nt_session_open(cli, PI_NETLOGON)) {
		DEBUG(0,("Error connecting to NETLOGON pipe\n"));
		goto fail;
	}

	if (!secrets_fetch_trust_account_password(lp_workgroup(),
						  trust_password, NULL,
						  &sec_channel)) {
		d_printf("Could not retrieve domain trust secret\n");
		goto fail;
	}
	
	result = cli_nt_establish_netlogon(cli, sec_channel,  trust_password);

	if (!NT_STATUS_IS_OK(result)) {
		d_printf("Failed to setup BDC creds\n");
		goto fail;
	}

	sid_copy( &dom_sid, get_global_sam_sid() );
	result = fetch_database(cli, SAM_DATABASE_DOMAIN, &ret_creds, dom_sid);

	if (!NT_STATUS_IS_OK(result)) {
		d_printf("Failed to fetch domain database: %s\n",
			 nt_errstr(result));
		if (NT_STATUS_EQUAL(result, NT_STATUS_NOT_SUPPORTED))
			d_printf("Perhaps %s is a Windows 2000 native mode "
				 "domain?\n", lp_workgroup());
		goto fail;
	}

	sid_copy(&dom_sid, &global_sid_Builtin);

	result = fetch_database(cli, SAM_DATABASE_BUILTIN, &ret_creds, 
				dom_sid);

	if (!NT_STATUS_IS_OK(result)) {
		d_printf("Failed to fetch builtin database: %s\n",
			 nt_errstr(result));
		goto fail;
	}	

	/* Currently we crash on PRIVS somewhere in unmarshalling */
	/* Dump_database(cli, SAM_DATABASE_PRIVS, &ret_creds); */

	cli_nt_session_close(cli);
        
        return 0;

fail:
	if (cli)
		cli_nt_session_close(cli);

	return -1;
}