summaryrefslogtreecommitdiff
path: root/source3/rpc_server/srv_svcctl_nt.c
blob: c868f94f767fe11deedf1849dfbe2e78edd697b9 (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
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
/* 
 *  Unix SMB/CIFS implementation.
 *  RPC Pipe client / server routines
 *
 *  Copyright (C) Marcin Krzysztof Porwit           2005.
 * 
 *  Largely Rewritten (Again) by:
 *  Copyright (C) Gerald (Jerry) Carter             2005.
 *  
 *  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 "includes.h"

#undef DBGC_CLASS
#define DBGC_CLASS DBGC_RPC_SRV

struct service_control_op {
	const char *name;
	SERVICE_CONTROL_OPS *ops;
};

#define SVCCTL_NUM_INTERNAL_SERVICES	4

/* handle external services */
extern SERVICE_CONTROL_OPS rcinit_svc_ops;

/* builtin services (see service_db.c and services/svc_*.c */
extern SERVICE_CONTROL_OPS spoolss_svc_ops;
extern SERVICE_CONTROL_OPS netlogon_svc_ops;
extern SERVICE_CONTROL_OPS winreg_svc_ops;
extern SERVICE_CONTROL_OPS wins_svc_ops;

/* make sure this number patches the number of builtin
   SERVICE_CONTROL_OPS structure listed above */

#define SVCCTL_NUM_INTERNAL_SERVICES	4

struct service_control_op *svcctl_ops;

static const struct generic_mapping scm_generic_map =
	{ SC_MANAGER_READ_ACCESS, SC_MANAGER_WRITE_ACCESS, SC_MANAGER_EXECUTE_ACCESS, SC_MANAGER_ALL_ACCESS };
static const struct generic_mapping svc_generic_map =
	{ SERVICE_READ_ACCESS, SERVICE_WRITE_ACCESS, SERVICE_EXECUTE_ACCESS, SERVICE_ALL_ACCESS };


/********************************************************************
********************************************************************/

BOOL init_service_op_table( void )
{
	const char **service_list = lp_svcctl_list();
	int num_services = SVCCTL_NUM_INTERNAL_SERVICES + str_list_count( service_list );
	int i;
	
	if ( !(svcctl_ops = TALLOC_ARRAY( NULL, struct service_control_op, num_services+1)) ) {
		DEBUG(0,("init_service_op_table: talloc() failed!\n"));
		return False;
	}

	/* services listed in smb.conf get the rc.init interface */
	
	for ( i=0; service_list && service_list[i]; i++ ) {
		svcctl_ops[i].name = talloc_strdup( svcctl_ops, service_list[i] );
		svcctl_ops[i].ops  = &rcinit_svc_ops;
	}
	
	/* add builtin services */
	
	svcctl_ops[i].name = talloc_strdup( svcctl_ops, "Spooler" );
	svcctl_ops[i].ops  = &spoolss_svc_ops;
	i++;
	
	svcctl_ops[i].name = talloc_strdup( svcctl_ops, "NETLOGON" );
	svcctl_ops[i].ops  = &netlogon_svc_ops;
	i++;
	
	svcctl_ops[i].name = talloc_strdup( svcctl_ops, "RemoteRegistry" );
	svcctl_ops[i].ops  = &winreg_svc_ops;
	i++;
	
	svcctl_ops[i].name = talloc_strdup( svcctl_ops, "WINS" );
	svcctl_ops[i].ops  = &wins_svc_ops;
	i++;
	
	/* NULL terminate the array */
	
	svcctl_ops[i].name = NULL;
	svcctl_ops[i].ops  = NULL;
	
	return True;
}

/********************************************************************
********************************************************************/

static struct service_control_op* find_service_by_name( const char *name )
{
	int i;

	for ( i=0; svcctl_ops[i].name; i++ ) {
		if ( strequal( name, svcctl_ops[i].name ) )
			return &svcctl_ops[i];
	}

	return NULL;
}
/********************************************************************
********************************************************************/

static NTSTATUS svcctl_access_check( SEC_DESC *sec_desc, NT_USER_TOKEN *token, 
                                     uint32 access_desired, uint32 *access_granted )
{
	NTSTATUS result;

	if ( geteuid() == sec_initial_uid() ) {
		DEBUG(5,("svcctl_access_check: using root's token\n"));
		token = get_root_nt_token();
	}
	
	se_access_check( sec_desc, token, access_desired, access_granted, &result );

	return result;
}

/********************************************************************
********************************************************************/

static SEC_DESC* construct_scm_sd( TALLOC_CTX *ctx )
{
	SEC_ACE ace[2];	
	SEC_ACCESS mask;
	size_t i = 0;
	SEC_DESC *sd;
	SEC_ACL *acl;
	size_t sd_size;

	/* basic access for Everyone */
	
	init_sec_access(&mask, SC_MANAGER_READ_ACCESS );
	init_sec_ace(&ace[i++], &global_sid_World, SEC_ACE_TYPE_ACCESS_ALLOWED, mask, 0);
	
	/* Full Access 'BUILTIN\Administrators' */
	
	init_sec_access(&mask,SC_MANAGER_ALL_ACCESS );
	init_sec_ace(&ace[i++], &global_sid_Builtin_Administrators, SEC_ACE_TYPE_ACCESS_ALLOWED, mask, 0);
	
	
	/* create the security descriptor */
	
	if ( !(acl = make_sec_acl(ctx, NT4_ACL_REVISION, i, ace)) )
		return NULL;

	if ( !(sd = make_sec_desc(ctx, SEC_DESC_REVISION, SEC_DESC_SELF_RELATIVE, NULL, NULL, NULL, acl, &sd_size)) )
		return NULL;

	return sd;
}

/******************************************************************
 free() function for REGISTRY_KEY
 *****************************************************************/
 
static void free_service_handle_info(void *ptr)
{
	TALLOC_FREE( ptr );
}

/******************************************************************
 Find a registry key handle and return a SERVICE_INFO
 *****************************************************************/

static SERVICE_INFO *find_service_info_by_hnd(pipes_struct *p, POLICY_HND *hnd)
{
	SERVICE_INFO *service_info = NULL;

	if( !find_policy_by_hnd( p, hnd, (void **)(void *)&service_info) ) {
		DEBUG(2,("find_service_info_by_hnd: handle not found"));
		return NULL;
	}

	return service_info;
}

/******************************************************************
 *****************************************************************/
 
static WERROR create_open_service_handle( pipes_struct *p, POLICY_HND *handle, uint32 type,
                                          const char *service, uint32 access_granted )
{
	SERVICE_INFO *info = NULL;
	WERROR result = WERR_OK;
	struct service_control_op *s_op;
	
	if ( !(info = TALLOC_ZERO_P( NULL, SERVICE_INFO )) )
		return WERR_NOMEM;

	/* the Service Manager has a NULL name */
	
	info->type = SVC_HANDLE_IS_SCM;
	
	switch ( type ) {
	case SVC_HANDLE_IS_SCM:
		info->type = SVC_HANDLE_IS_SCM;
		break;

	case SVC_HANDLE_IS_DBLOCK:
		info->type = SVC_HANDLE_IS_DBLOCK;
		break;
		
	case SVC_HANDLE_IS_SERVICE:
		info->type = SVC_HANDLE_IS_SERVICE;
		
		/* lookup the SERVICE_CONTROL_OPS */

		if ( !(s_op = find_service_by_name( service )) ) {
			result = WERR_NO_SUCH_SERVICE;
			goto done;
		}
		
		info->ops = s_op->ops;

		if ( !(info->name  = talloc_strdup( info, s_op->name )) ) {
			result = WERR_NOMEM;
			goto done;
		}
		break;

	default:
		result = WERR_NO_SUCH_SERVICE;
		goto done;
	}

	info->access_granted = access_granted;	
	
	/* store the SERVICE_INFO and create an open handle */
	
	if ( !create_policy_hnd( p, handle, free_service_handle_info, info ) ) {
		result = WERR_ACCESS_DENIED;
		goto done;
	}
		
done:
	if ( !W_ERROR_IS_OK(result) )
		free_service_handle_info( info );

	return result;
}

/********************************************************************
********************************************************************/

WERROR _svcctl_open_scmanager(pipes_struct *p, SVCCTL_Q_OPEN_SCMANAGER *q_u, SVCCTL_R_OPEN_SCMANAGER *r_u)
{
	SEC_DESC *sec_desc;
	uint32 access_granted = 0;
	NTSTATUS status;
	
	/* perform access checks */
	
	if ( !(sec_desc = construct_scm_sd( p->mem_ctx )) )
		return WERR_NOMEM;
		
	se_map_generic( &q_u->access, &scm_generic_map );
	status = svcctl_access_check( sec_desc, p->pipe_user.nt_user_token, q_u->access, &access_granted );
	if ( !NT_STATUS_IS_OK(status) )
		return ntstatus_to_werror( status );
		
	return create_open_service_handle( p, &r_u->handle, SVC_HANDLE_IS_SCM, NULL, access_granted );
}

/********************************************************************
********************************************************************/

WERROR _svcctl_open_service(pipes_struct *p, SVCCTL_Q_OPEN_SERVICE *q_u, SVCCTL_R_OPEN_SERVICE *r_u)
{
	SEC_DESC *sec_desc;
	uint32 access_granted = 0;
	NTSTATUS status;
	pstring service;

	rpcstr_pull(service, q_u->servicename.buffer, sizeof(service), q_u->servicename.uni_str_len*2, 0);
	
  	DEBUG(5, ("_svcctl_open_service: Attempting to open Service [%s], \n", service));

	
	/* based on my tests you can open a service if you have a valid scm handle */
	
	if ( !find_service_info_by_hnd( p, &q_u->handle ) )
		return WERR_BADFID;
			
	/* perform access checks.  Use the root token in order to ensure that we 
	   retrieve the security descriptor */
	
	if ( !(sec_desc = svcctl_get_secdesc( p->mem_ctx, service, get_root_nt_token() )) )
		return WERR_NOMEM;
		
	se_map_generic( &q_u->access, &svc_generic_map );
	status = svcctl_access_check( sec_desc, p->pipe_user.nt_user_token, q_u->access, &access_granted );
	if ( !NT_STATUS_IS_OK(status) )
		return ntstatus_to_werror( status );
	
	return create_open_service_handle( p, &r_u->handle, SVC_HANDLE_IS_SERVICE, service, access_granted );
}

/********************************************************************
********************************************************************/

WERROR _svcctl_CloseServiceHandle(pipes_struct *p, struct svcctl_CloseServiceHandle *r)
{
	if ( !close_policy_hnd( p, r->in.handle ) )
		return  WERR_BADFID;

	return WERR_OK;	
}

/********************************************************************
********************************************************************/

WERROR _svcctl_get_display_name(pipes_struct *p, SVCCTL_Q_GET_DISPLAY_NAME *q_u, SVCCTL_R_GET_DISPLAY_NAME *r_u)
{
	fstring service;
	const char *display_name;
	SERVICE_INFO *info = find_service_info_by_hnd( p, &q_u->handle );
	
	/* can only use an SCM handle here */
	
	if ( !info || (info->type != SVC_HANDLE_IS_SCM) )
		return WERR_BADFID;
		
	rpcstr_pull(service, q_u->servicename.buffer, sizeof(service), q_u->servicename.uni_str_len*2, 0);
	
	display_name = svcctl_lookup_dispname( service, p->pipe_user.nt_user_token );
	init_svcctl_r_get_display_name( r_u, display_name );

	return WERR_OK;
}

/********************************************************************
********************************************************************/

WERROR _svcctl_query_status(pipes_struct *p, SVCCTL_Q_QUERY_STATUS *q_u, SVCCTL_R_QUERY_STATUS *r_u)
{
	SERVICE_INFO *info = find_service_info_by_hnd( p, &q_u->handle );
	
	/* perform access checks */

	if ( !info || (info->type != SVC_HANDLE_IS_SERVICE) )
		return WERR_BADFID;
		
	if ( !(info->access_granted & SC_RIGHT_SVC_QUERY_STATUS) )
		return WERR_ACCESS_DENIED;
		
	/* try the service specific status call */

	return info->ops->service_status( info->name, &r_u->svc_status );
}

/********************************************************************
********************************************************************/

static int enumerate_status( TALLOC_CTX *ctx, ENUM_SERVICES_STATUS **status, NT_USER_TOKEN *token )
{
	int num_services = 0;
	int i;
	ENUM_SERVICES_STATUS *st;
	const char *display_name;
	
	/* just count */
	while ( svcctl_ops[num_services].name )
		num_services++;

	if ( !(st = TALLOC_ARRAY( ctx, ENUM_SERVICES_STATUS, num_services )) ) {
		DEBUG(0,("enumerate_status: talloc() failed!\n"));
		return -1;
	}
	
	for ( i=0; i<num_services; i++ ) {
		init_unistr( &st[i].servicename, svcctl_ops[i].name );
		
		display_name = svcctl_lookup_dispname( svcctl_ops[i].name, token );
		init_unistr( &st[i].displayname, display_name );
		
		svcctl_ops[i].ops->service_status( svcctl_ops[i].name, &st[i].status );
	}
	
	*status = st;

	return num_services;
}

/********************************************************************
********************************************************************/

WERROR _svcctl_enum_services_status(pipes_struct *p, SVCCTL_Q_ENUM_SERVICES_STATUS *q_u, SVCCTL_R_ENUM_SERVICES_STATUS *r_u)
{
	ENUM_SERVICES_STATUS *services = NULL;
	int num_services;
	int i = 0;
	size_t buffer_size = 0;
	WERROR result = WERR_OK;
	SERVICE_INFO *info = find_service_info_by_hnd( p, &q_u->handle );
	NT_USER_TOKEN *token = p->pipe_user.nt_user_token;
	
	/* perform access checks */

	if ( !info || (info->type != SVC_HANDLE_IS_SCM) )
		return WERR_BADFID;
		
	if ( !(info->access_granted & SC_RIGHT_MGR_ENUMERATE_SERVICE) ) {
		return WERR_ACCESS_DENIED;
	}

	num_services = enumerate_status( p->mem_ctx, &services, token );
	if (num_services == -1 ) {
		return WERR_NOMEM;
	}

        for ( i=0; i<num_services; i++ ) {
		buffer_size += svcctl_sizeof_enum_services_status(&services[i]);
	}

	buffer_size += buffer_size % 4;

	if (buffer_size > q_u->buffer_size ) {
		num_services = 0;
		result = WERR_MORE_DATA;
	}

	rpcbuf_init(&r_u->buffer, q_u->buffer_size, p->mem_ctx);

	if ( W_ERROR_IS_OK(result) ) {
		for ( i=0; i<num_services; i++ )
			svcctl_io_enum_services_status( "", &services[i], &r_u->buffer, 0 );
	}

	r_u->needed      = (buffer_size > q_u->buffer_size) ? buffer_size : q_u->buffer_size;
	r_u->returned    = (uint32)num_services;

	if ( !(r_u->resume = TALLOC_P( p->mem_ctx, uint32 )) )
		return WERR_NOMEM;

	*r_u->resume = 0x0;

	return result;
}

/********************************************************************
********************************************************************/

WERROR _svcctl_start_service(pipes_struct *p, SVCCTL_Q_START_SERVICE *q_u, SVCCTL_R_START_SERVICE *r_u)
{
	SERVICE_INFO *info = find_service_info_by_hnd( p, &q_u->handle );
	
	/* perform access checks */

	if ( !info || (info->type != SVC_HANDLE_IS_SERVICE) )
		return WERR_BADFID;
	
	if ( !(info->access_granted & SC_RIGHT_SVC_START) )
		return WERR_ACCESS_DENIED;
		
	return info->ops->start_service( info->name );
}

/********************************************************************
********************************************************************/

WERROR _svcctl_control_service(pipes_struct *p, SVCCTL_Q_CONTROL_SERVICE *q_u, SVCCTL_R_CONTROL_SERVICE *r_u)
{
	SERVICE_INFO *info = find_service_info_by_hnd( p, &q_u->handle );
	
	/* perform access checks */
	
	if ( !info || (info->type != SVC_HANDLE_IS_SERVICE) )
		return WERR_BADFID;	
	
	switch ( q_u->control ) {
	case SVCCTL_CONTROL_STOP:
		if ( !(info->access_granted & SC_RIGHT_SVC_STOP) )
			return WERR_ACCESS_DENIED;
			
		return info->ops->stop_service( info->name, &r_u->svc_status );
		
	case SVCCTL_CONTROL_INTERROGATE:
		if ( !(info->access_granted & SC_RIGHT_SVC_QUERY_STATUS) )
			return WERR_ACCESS_DENIED;
			
		return info->ops->service_status( info->name, &r_u->svc_status );
	}
	
	/* default control action */
	
	return WERR_ACCESS_DENIED;
}

/********************************************************************
********************************************************************/

WERROR _svcctl_enum_dependent_services( pipes_struct *p, SVCCTL_Q_ENUM_DEPENDENT_SERVICES *q_u, SVCCTL_R_ENUM_DEPENDENT_SERVICES *r_u )
{
	SERVICE_INFO *info = find_service_info_by_hnd( p, &q_u->handle );
	
	/* perform access checks */

	if ( !info || (info->type != SVC_HANDLE_IS_SERVICE) )
		return WERR_BADFID;	
	
	if ( !(info->access_granted & SC_RIGHT_SVC_ENUMERATE_DEPENDENTS) )
		return WERR_ACCESS_DENIED;
			
	/* we have to set the outgoing buffer size to the same as the 
	   incoming buffer size (even in the case of failure */

	rpcbuf_init( &r_u->buffer, q_u->buffer_size, p->mem_ctx );
				
	r_u->needed      = q_u->buffer_size;
	
	/* no dependent services...basically a stub function */
	r_u->returned    = 0;

	return WERR_OK;
}

/********************************************************************
********************************************************************/

WERROR _svcctl_query_service_status_ex( pipes_struct *p, SVCCTL_Q_QUERY_SERVICE_STATUSEX *q_u, SVCCTL_R_QUERY_SERVICE_STATUSEX *r_u )
{
	SERVICE_INFO *info = find_service_info_by_hnd( p, &q_u->handle );
	uint32 buffer_size;
	
	/* perform access checks */

	if ( !info || (info->type != SVC_HANDLE_IS_SERVICE) )
		return WERR_BADFID;	
	
	if ( !(info->access_granted & SC_RIGHT_SVC_QUERY_STATUS) )
		return WERR_ACCESS_DENIED;

	/* we have to set the outgoing buffer size to the same as the 
	   incoming buffer size (even in the case of failure) */

	rpcbuf_init( &r_u->buffer, q_u->buffer_size, p->mem_ctx );
	r_u->needed = q_u->buffer_size;
	
	switch ( q_u->level ) {
		case SVC_STATUS_PROCESS_INFO:
		{
			SERVICE_STATUS_PROCESS svc_stat_proc;

			/* Get the status of the service.. */
			info->ops->service_status( info->name, &svc_stat_proc.status );
			svc_stat_proc.process_id     = sys_getpid();
			svc_stat_proc.service_flags  = 0x0;

			svcctl_io_service_status_process( "", &svc_stat_proc, &r_u->buffer, 0 );
	                buffer_size = sizeof(SERVICE_STATUS_PROCESS);
			break;
		}
			
		default:
			return WERR_UNKNOWN_LEVEL; 
	}

	
        buffer_size += buffer_size % 4;
	r_u->needed = (buffer_size > q_u->buffer_size) ? buffer_size : q_u->buffer_size;

        if (buffer_size > q_u->buffer_size ) 
                return WERR_MORE_DATA;
	
	return WERR_OK;
}

/********************************************************************
********************************************************************/

static WERROR fill_svc_config( TALLOC_CTX *ctx, const char *name, SERVICE_CONFIG *config, NT_USER_TOKEN *token )
{
	REGVAL_CTR *values;
	REGISTRY_VALUE *val;

	/* retrieve the registry values for this service */
	
	if ( !(values = svcctl_fetch_regvalues( name, token )) )
		return WERR_REG_CORRUPT;
	
	/* now fill in the individual values */
		
	config->displayname = TALLOC_ZERO_P( ctx, UNISTR2 );
	if ( (val = regval_ctr_getvalue( values, "DisplayName" )) != NULL )
		init_unistr2( config->displayname, regval_sz( val ), UNI_STR_TERMINATE );
	else
		init_unistr2( config->displayname, name, UNI_STR_TERMINATE );

	if ( (val = regval_ctr_getvalue( values, "ObjectName" )) != NULL ) {
		config->startname = TALLOC_ZERO_P( ctx, UNISTR2 );		
		init_unistr2( config->startname, regval_sz( val ), UNI_STR_TERMINATE );
	}
		
	if ( (val = regval_ctr_getvalue( values, "ImagePath" )) != NULL ) {
		config->executablepath = TALLOC_ZERO_P( ctx, UNISTR2 );		
		init_unistr2( config->executablepath, regval_sz( val ), UNI_STR_TERMINATE );
	}

	/* a few hard coded values */
	/* loadordergroup and dependencies are empty */
	
	config->tag_id           = 0x00000000;			/* unassigned loadorder group */
	config->service_type     = SVCCTL_WIN32_OWN_PROC;
	config->error_control    = SVCCTL_SVC_ERROR_NORMAL;

	/* set the start type.  NetLogon and WINS are disabled to prevent 
	   the client from showing the "Start" button (if of course the services
	   are not running */

	if ( strequal( name, "NETLOGON" ) && ( lp_servicenumber(name) == -1 ) )
		config->start_type = SVCCTL_DISABLED;
	else if ( strequal( name, "WINS" ) && ( !lp_wins_support() ))
		config->start_type = SVCCTL_DISABLED;
	else
		config->start_type = SVCCTL_DEMAND_START;
	

	TALLOC_FREE( values );

	return WERR_OK;
}

/********************************************************************
********************************************************************/

WERROR _svcctl_query_service_config( pipes_struct *p, SVCCTL_Q_QUERY_SERVICE_CONFIG *q_u, SVCCTL_R_QUERY_SERVICE_CONFIG *r_u )
{
	SERVICE_INFO *info = find_service_info_by_hnd( p, &q_u->handle );
	uint32 buffer_size;
	WERROR wresult;
	
	/* perform access checks */

	if ( !info || (info->type != SVC_HANDLE_IS_SERVICE) )
		return WERR_BADFID;	
	
	if ( !(info->access_granted & SC_RIGHT_SVC_QUERY_CONFIG) )
		return WERR_ACCESS_DENIED;

	/* we have to set the outgoing buffer size to the same as the 
	   incoming buffer size (even in the case of failure */

	r_u->needed      = q_u->buffer_size;
	
	wresult = fill_svc_config( p->mem_ctx, info->name, &r_u->config, p->pipe_user.nt_user_token );
	if ( !W_ERROR_IS_OK(wresult) )
		return wresult;
	
	buffer_size = svcctl_sizeof_service_config( &r_u->config );
	r_u->needed = (buffer_size > q_u->buffer_size) ? buffer_size : q_u->buffer_size;

        if (buffer_size > q_u->buffer_size ) {
		ZERO_STRUCTP( &r_u->config );
                return WERR_INSUFFICIENT_BUFFER;
	}
		
	return WERR_OK;
}

/********************************************************************
********************************************************************/

WERROR _svcctl_query_service_config2( pipes_struct *p, SVCCTL_Q_QUERY_SERVICE_CONFIG2 *q_u, SVCCTL_R_QUERY_SERVICE_CONFIG2 *r_u )
{
	SERVICE_INFO *info = find_service_info_by_hnd( p, &q_u->handle );
	uint32 buffer_size;
	
	/* perform access checks */

	if ( !info || (info->type != SVC_HANDLE_IS_SERVICE) )
		return WERR_BADFID;	
	
	if ( !(info->access_granted & SC_RIGHT_SVC_QUERY_CONFIG) )
		return WERR_ACCESS_DENIED;
 
	/* we have to set the outgoing buffer size to the same as the 
	   incoming buffer size (even in the case of failure */

	rpcbuf_init( &r_u->buffer, q_u->buffer_size, p->mem_ctx );
	r_u->needed = q_u->buffer_size;

	switch ( q_u->level ) {
	case SERVICE_CONFIG_DESCRIPTION:
		{
			SERVICE_DESCRIPTION desc_buf;
			const char *description;
			
			description = svcctl_lookup_description( info->name, p->pipe_user.nt_user_token );
			
			ZERO_STRUCTP( &desc_buf );

			init_service_description_buffer( &desc_buf, description );
			svcctl_io_service_description( "", &desc_buf, &r_u->buffer, 0 );
	                buffer_size = svcctl_sizeof_service_description( &desc_buf );

			break;
		}
		break;
	case SERVICE_CONFIG_FAILURE_ACTIONS:
		{
			SERVICE_FAILURE_ACTIONS actions;

			/* nothing to say...just service the request */

			ZERO_STRUCTP( &actions );
			svcctl_io_service_fa( "", &actions, &r_u->buffer, 0 );
	                buffer_size = svcctl_sizeof_service_fa( &actions );

			break;
		}
		break;

	default:
		return WERR_UNKNOWN_LEVEL;
	}
	
	buffer_size += buffer_size % 4;
	r_u->needed = (buffer_size > q_u->buffer_size) ? buffer_size : q_u->buffer_size;

        if (buffer_size > q_u->buffer_size )
                return WERR_INSUFFICIENT_BUFFER;

	return WERR_OK;
}

/********************************************************************
********************************************************************/

WERROR _svcctl_lock_service_db( pipes_struct *p, SVCCTL_Q_LOCK_SERVICE_DB *q_u, SVCCTL_R_LOCK_SERVICE_DB *r_u )
{
	SERVICE_INFO *info = find_service_info_by_hnd( p, &q_u->handle );
	
	/* perform access checks */

	if ( !info || (info->type != SVC_HANDLE_IS_SCM) )
		return WERR_BADFID;	
	
	if ( !(info->access_granted & SC_RIGHT_MGR_LOCK) )
		return WERR_ACCESS_DENIED;

	/* Just open a handle.  Doesn't actually lock anything */
	
	return create_open_service_handle( p, &r_u->h_lock, SVC_HANDLE_IS_DBLOCK, NULL, 0 );
;
}

/********************************************************************
********************************************************************/

WERROR _svcctl_unlock_service_db( pipes_struct *p, SVCCTL_Q_UNLOCK_SERVICE_DB *q_u, SVCCTL_R_UNLOCK_SERVICE_DB *r_u )
{
	SERVICE_INFO *info = find_service_info_by_hnd( p, &q_u->h_lock );


	if ( !info || (info->type != SVC_HANDLE_IS_DBLOCK) )
		return WERR_BADFID;	
		
	return close_policy_hnd( p, &q_u->h_lock) ? WERR_OK : WERR_BADFID;
}

/********************************************************************
********************************************************************/

WERROR _svcctl_query_service_sec( pipes_struct *p, SVCCTL_Q_QUERY_SERVICE_SEC *q_u, SVCCTL_R_QUERY_SERVICE_SEC *r_u )
{
	SERVICE_INFO *info = find_service_info_by_hnd( p, &q_u->handle );
	SEC_DESC *sec_desc;


	/* only support the SCM and individual services */

	if ( !info || !(info->type & (SVC_HANDLE_IS_SERVICE|SVC_HANDLE_IS_SCM)) )
		return WERR_BADFID;	

	/* check access reights (according to MSDN) */

	if ( !(info->access_granted & STD_RIGHT_READ_CONTROL_ACCESS) )
		return WERR_ACCESS_DENIED;

	/* TODO: handle something besides DACL_SECURITY_INFORMATION */

	if ( (q_u->security_flags & DACL_SECURITY_INFORMATION) != DACL_SECURITY_INFORMATION )
		return WERR_INVALID_PARAM;

	/* lookup the security descriptor and marshall it up for a reply */

	if ( !(sec_desc = svcctl_get_secdesc( p->mem_ctx, info->name, get_root_nt_token() )) )
                return WERR_NOMEM;

	r_u->needed = sec_desc_size( sec_desc );

	if ( r_u->needed > q_u->buffer_size ) {
		ZERO_STRUCTP( &r_u->buffer );
		return WERR_INSUFFICIENT_BUFFER;
	}

	rpcbuf_init( &r_u->buffer, q_u->buffer_size, p->mem_ctx );

	if ( !sec_io_desc("", &sec_desc, &r_u->buffer.prs, 0 ) )
		return WERR_NOMEM;
		
	return WERR_OK;
}

/********************************************************************
********************************************************************/

WERROR _svcctl_set_service_sec( pipes_struct *p, SVCCTL_Q_SET_SERVICE_SEC *q_u, SVCCTL_R_SET_SERVICE_SEC *r_u )
{
	SERVICE_INFO *info = find_service_info_by_hnd( p, &q_u->handle );
	SEC_DESC *sec_desc = NULL;
	uint32 required_access;

	if ( !info || !(info->type & (SVC_HANDLE_IS_SERVICE|SVC_HANDLE_IS_SCM))  )
		return WERR_BADFID;

	/* can't set the security de4scriptor on the ServiceControlManager */

	if ( info->type == SVC_HANDLE_IS_SCM )
		return WERR_ACCESS_DENIED;	

	/* check the access on the open handle */
	
	switch ( q_u->security_flags ) {
		case DACL_SECURITY_INFORMATION:
			required_access = STD_RIGHT_WRITE_DAC_ACCESS;
			break;
			
		case OWNER_SECURITY_INFORMATION:
		case GROUP_SECURITY_INFORMATION:
			required_access = STD_RIGHT_WRITE_OWNER_ACCESS;
			break;
			
		case SACL_SECURITY_INFORMATION:
			return WERR_INVALID_PARAM;
		default:
			return WERR_INVALID_PARAM;
	}
	
	if ( !(info->access_granted & required_access) )
		return WERR_ACCESS_DENIED;
	
	/* read the security descfriptor */
		
	if ( !sec_io_desc("", &sec_desc, &q_u->buffer.prs, 0 ) )
		return WERR_NOMEM;
		
	/* store the new SD */

	if ( !svcctl_set_secdesc( p->mem_ctx, info->name, sec_desc, p->pipe_user.nt_user_token ) ) 
		return WERR_ACCESS_DENIED;

	return WERR_OK;
}


WERROR _svcctl_ControlService(pipes_struct *p, struct svcctl_ControlService *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_DeleteService(pipes_struct *p, struct svcctl_DeleteService *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_LockServiceDatabase(pipes_struct *p, struct svcctl_LockServiceDatabase *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_QueryServiceObjectSecurity(pipes_struct *p, struct svcctl_QueryServiceObjectSecurity *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_SetServiceObjectSecurity(pipes_struct *p, struct svcctl_SetServiceObjectSecurity *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_QueryServiceStatus(pipes_struct *p, struct svcctl_QueryServiceStatus *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_SetServiceStatus(pipes_struct *p, struct svcctl_SetServiceStatus *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_UnlockServiceDatabase(pipes_struct *p, struct svcctl_UnlockServiceDatabase *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_NotifyBootConfigStatus(pipes_struct *p, struct svcctl_NotifyBootConfigStatus *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_SCSetServiceBitsW(pipes_struct *p, struct svcctl_SCSetServiceBitsW *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_ChangeServiceConfigW(pipes_struct *p, struct svcctl_ChangeServiceConfigW *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_CreateServiceW(pipes_struct *p, struct svcctl_CreateServiceW *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_EnumDependentServicesW(pipes_struct *p, struct svcctl_EnumDependentServicesW *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_EnumServicesStatusW(pipes_struct *p, struct svcctl_EnumServicesStatusW *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_OpenSCManagerW(pipes_struct *p, struct svcctl_OpenSCManagerW *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_OpenServiceW(pipes_struct *p, struct svcctl_OpenServiceW *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_QueryServiceConfigW(pipes_struct *p, struct svcctl_QueryServiceConfigW *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_QueryServiceLockStatusW(pipes_struct *p, struct svcctl_QueryServiceLockStatusW *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_StartServiceW(pipes_struct *p, struct svcctl_StartServiceW *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_GetServiceDisplayNameW(pipes_struct *p, struct svcctl_GetServiceDisplayNameW *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_GetServiceKeyNameW(pipes_struct *p, struct svcctl_GetServiceKeyNameW *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_SCSetServiceBitsA(pipes_struct *p, struct svcctl_SCSetServiceBitsA *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_ChangeServiceConfigA(pipes_struct *p, struct svcctl_ChangeServiceConfigA *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_CreateServiceA(pipes_struct *p, struct svcctl_CreateServiceA *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_EnumDependentServicesA(pipes_struct *p, struct svcctl_EnumDependentServicesA *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_EnumServicesStatusA(pipes_struct *p, struct svcctl_EnumServicesStatusA *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_OpenSCManagerA(pipes_struct *p, struct svcctl_OpenSCManagerA *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_OpenServiceA(pipes_struct *p, struct svcctl_OpenServiceA *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_QueryServiceConfigA(pipes_struct *p, struct svcctl_QueryServiceConfigA *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_QueryServiceLockStatusA(pipes_struct *p, struct svcctl_QueryServiceLockStatusA *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_StartServiceA(pipes_struct *p, struct svcctl_StartServiceA *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_GetServiceDisplayNameA(pipes_struct *p, struct svcctl_GetServiceDisplayNameA *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_GetServiceKeyNameA(pipes_struct *p, struct svcctl_GetServiceKeyNameA *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_GetCurrentGroupeStateW(pipes_struct *p, struct svcctl_GetCurrentGroupeStateW *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_EnumServiceGroupW(pipes_struct *p, struct svcctl_EnumServiceGroupW *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_ChangeServiceConfig2A(pipes_struct *p, struct svcctl_ChangeServiceConfig2A *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_ChangeServiceConfig2W(pipes_struct *p, struct svcctl_ChangeServiceConfig2W *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_QueryServiceConfig2A(pipes_struct *p, struct svcctl_QueryServiceConfig2A *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_QueryServiceConfig2W(pipes_struct *p, struct svcctl_QueryServiceConfig2W *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_QueryServiceStatusEx(pipes_struct *p, struct svcctl_QueryServiceStatusEx *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _EnumServicesStatusExA(pipes_struct *p, struct EnumServicesStatusExA *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _EnumServicesStatusExW(pipes_struct *p, struct EnumServicesStatusExW *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}

WERROR _svcctl_SCSendTSMessage(pipes_struct *p, struct svcctl_SCSendTSMessage *r)
{
	p->rng_fault_state = True;
	return WERR_NOT_SUPPORTED;	
}