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s3-svcctl: fix memcpy in _svcctl_EnumServicesStatusW().
[Samba/gbeck.git] / source3 / rpc_server / srv_svcctl_nt.c
blobd73f73f9eccfaad16075f80f144077f544f42e17
1 /*
2 * Unix SMB/CIFS implementation.
3 * RPC Pipe client / server routines
4 *
5 * Copyright (C) Marcin Krzysztof Porwit 2005.
6 *
7 * Largely Rewritten (Again) by:
8 * Copyright (C) Gerald (Jerry) Carter 2005.
9 * Copyright (C) Guenther Deschner 2008,2009.
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 3 of the License, or
14 * (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, see <http://www.gnu.org/licenses/>.
23 */
24
25 #include "includes.h"
26
27 #undef DBGC_CLASS
28 #define DBGC_CLASS DBGC_RPC_SRV
29
30 struct service_control_op {
31 const char *name;
32 SERVICE_CONTROL_OPS *ops;
33 };
34
35 /* handle external services */
36 extern SERVICE_CONTROL_OPS rcinit_svc_ops;
37
38 /* builtin services (see service_db.c and services/svc_*.c */
39 extern SERVICE_CONTROL_OPS spoolss_svc_ops;
40 extern SERVICE_CONTROL_OPS netlogon_svc_ops;
41 extern SERVICE_CONTROL_OPS winreg_svc_ops;
42 extern SERVICE_CONTROL_OPS wins_svc_ops;
43
44 /* make sure this number patches the number of builtin
45 SERVICE_CONTROL_OPS structure listed above */
46
47 #define SVCCTL_NUM_INTERNAL_SERVICES 4
48
49 struct service_control_op *svcctl_ops;
50
51 static const struct generic_mapping scm_generic_map =
52 { SC_MANAGER_READ_ACCESS, SC_MANAGER_WRITE_ACCESS, SC_MANAGER_EXECUTE_ACCESS, SC_MANAGER_ALL_ACCESS };
53 static const struct generic_mapping svc_generic_map =
54 { SERVICE_READ_ACCESS, SERVICE_WRITE_ACCESS, SERVICE_EXECUTE_ACCESS, SERVICE_ALL_ACCESS };
55
56
57 /********************************************************************
58 ********************************************************************/
59
60 bool init_service_op_table( void )
61 {
62 const char **service_list = lp_svcctl_list();
63 int num_services = SVCCTL_NUM_INTERNAL_SERVICES + str_list_length( service_list );
64 int i;
65
66 if ( !(svcctl_ops = TALLOC_ARRAY( NULL, struct service_control_op, num_services+1)) ) {
67 DEBUG(0,("init_service_op_table: talloc() failed!\n"));
68 return False;
69 }
70
71 /* services listed in smb.conf get the rc.init interface */
72
73 for ( i=0; service_list && service_list[i]; i++ ) {
74 svcctl_ops[i].name = talloc_strdup( svcctl_ops, service_list[i] );
75 svcctl_ops[i].ops = &rcinit_svc_ops;
76 }
77
78 /* add builtin services */
79
80 svcctl_ops[i].name = talloc_strdup( svcctl_ops, "Spooler" );
81 svcctl_ops[i].ops = &spoolss_svc_ops;
82 i++;
83
84 svcctl_ops[i].name = talloc_strdup( svcctl_ops, "NETLOGON" );
85 svcctl_ops[i].ops = &netlogon_svc_ops;
86 i++;
87
88 svcctl_ops[i].name = talloc_strdup( svcctl_ops, "RemoteRegistry" );
89 svcctl_ops[i].ops = &winreg_svc_ops;
90 i++;
91
92 svcctl_ops[i].name = talloc_strdup( svcctl_ops, "WINS" );
93 svcctl_ops[i].ops = &wins_svc_ops;
94 i++;
95
96 /* NULL terminate the array */
97
98 svcctl_ops[i].name = NULL;
99 svcctl_ops[i].ops = NULL;
100
101 return True;
102 }
103
104 /********************************************************************
105 ********************************************************************/
106
107 static struct service_control_op* find_service_by_name( const char *name )
108 {
109 int i;
110
111 for ( i=0; svcctl_ops[i].name; i++ ) {
112 if ( strequal( name, svcctl_ops[i].name ) )
113 return &svcctl_ops[i];
114 }
115
116 return NULL;
117 }
118 /********************************************************************
119 ********************************************************************/
120
121 static NTSTATUS svcctl_access_check( SEC_DESC *sec_desc, NT_USER_TOKEN *token,
122 uint32 access_desired, uint32 *access_granted )
123 {
124 if ( geteuid() == sec_initial_uid() ) {
125 DEBUG(5,("svcctl_access_check: using root's token\n"));
126 token = get_root_nt_token();
127 }
128
129 return se_access_check( sec_desc, token, access_desired, access_granted);
130 }
131
132 /********************************************************************
133 ********************************************************************/
134
135 static SEC_DESC* construct_scm_sd( TALLOC_CTX *ctx )
136 {
137 SEC_ACE ace[2];
138 size_t i = 0;
139 SEC_DESC *sd;
140 SEC_ACL *theacl;
141 size_t sd_size;
142
143 /* basic access for Everyone */
144
145 init_sec_ace(&ace[i++], &global_sid_World,
146 SEC_ACE_TYPE_ACCESS_ALLOWED, SC_MANAGER_READ_ACCESS, 0);
147
148 /* Full Access 'BUILTIN\Administrators' */
149
150 init_sec_ace(&ace[i++], &global_sid_Builtin_Administrators,
151 SEC_ACE_TYPE_ACCESS_ALLOWED, SC_MANAGER_ALL_ACCESS, 0);
152
153
154 /* create the security descriptor */
155
156 if ( !(theacl = make_sec_acl(ctx, NT4_ACL_REVISION, i, ace)) )
157 return NULL;
158
159 if ( !(sd = make_sec_desc(ctx, SECURITY_DESCRIPTOR_REVISION_1,
160 SEC_DESC_SELF_RELATIVE, NULL, NULL, NULL,
161 theacl, &sd_size)) )
162 return NULL;
163
164 return sd;
165 }
166
167 /******************************************************************
168 Find a registry key handle and return a SERVICE_INFO
169 *****************************************************************/
170
171 static SERVICE_INFO *find_service_info_by_hnd(pipes_struct *p, struct policy_handle *hnd)
172 {
173 SERVICE_INFO *service_info = NULL;
174
175 if( !find_policy_by_hnd( p, hnd, (void **)(void *)&service_info) ) {
176 DEBUG(2,("find_service_info_by_hnd: handle not found\n"));
177 return NULL;
178 }
179
180 return service_info;
181 }
182
183 /******************************************************************
184 *****************************************************************/
185
186 static WERROR create_open_service_handle( pipes_struct *p, struct policy_handle *handle, uint32 type,
187 const char *service, uint32 access_granted )
188 {
189 SERVICE_INFO *info = NULL;
190 WERROR result = WERR_OK;
191 struct service_control_op *s_op;
192
193 if ( !(info = TALLOC_ZERO_P( NULL, SERVICE_INFO )) )
194 return WERR_NOMEM;
195
196 /* the Service Manager has a NULL name */
197
198 info->type = SVC_HANDLE_IS_SCM;
199
200 switch ( type ) {
201 case SVC_HANDLE_IS_SCM:
202 info->type = SVC_HANDLE_IS_SCM;
203 break;
204
205 case SVC_HANDLE_IS_DBLOCK:
206 info->type = SVC_HANDLE_IS_DBLOCK;
207 break;
208
209 case SVC_HANDLE_IS_SERVICE:
210 info->type = SVC_HANDLE_IS_SERVICE;
211
212 /* lookup the SERVICE_CONTROL_OPS */
213
214 if ( !(s_op = find_service_by_name( service )) ) {
215 result = WERR_NO_SUCH_SERVICE;
216 goto done;
217 }
218
219 info->ops = s_op->ops;
220
221 if ( !(info->name = talloc_strdup( info, s_op->name )) ) {
222 result = WERR_NOMEM;
223 goto done;
224 }
225 break;
226
227 default:
228 result = WERR_NO_SUCH_SERVICE;
229 goto done;
230 }
231
232 info->access_granted = access_granted;
233
234 /* store the SERVICE_INFO and create an open handle */
235
236 if ( !create_policy_hnd( p, handle, info ) ) {
237 result = WERR_ACCESS_DENIED;
238 goto done;
239 }
240
241 done:
242 if ( !W_ERROR_IS_OK(result) )
243 TALLOC_FREE(info);
244
245 return result;
246 }
247
248 /********************************************************************
249 _svcctl_OpenSCManagerW
250 ********************************************************************/
251
252 WERROR _svcctl_OpenSCManagerW(pipes_struct *p,
253 struct svcctl_OpenSCManagerW *r)
254 {
255 SEC_DESC *sec_desc;
256 uint32 access_granted = 0;
257 NTSTATUS status;
258
259 /* perform access checks */
260
261 if ( !(sec_desc = construct_scm_sd( p->mem_ctx )) )
262 return WERR_NOMEM;
263
264 se_map_generic( &r->in.access_mask, &scm_generic_map );
265 status = svcctl_access_check( sec_desc, p->server_info->ptok,
266 r->in.access_mask, &access_granted );
267 if ( !NT_STATUS_IS_OK(status) )
268 return ntstatus_to_werror( status );
269
270 return create_open_service_handle( p, r->out.handle, SVC_HANDLE_IS_SCM, NULL, access_granted );
271 }
272
273 /********************************************************************
274 _svcctl_OpenServiceW
275 ********************************************************************/
276
277 WERROR _svcctl_OpenServiceW(pipes_struct *p,
278 struct svcctl_OpenServiceW *r)
279 {
280 SEC_DESC *sec_desc;
281 uint32 access_granted = 0;
282 NTSTATUS status;
283 const char *service = NULL;
284
285 service = r->in.ServiceName;
286 if (!service) {
287 return WERR_NOMEM;
288 }
289 DEBUG(5, ("_svcctl_OpenServiceW: Attempting to open Service [%s], \n", service));
290
291 /* based on my tests you can open a service if you have a valid scm handle */
292
293 if ( !find_service_info_by_hnd( p, r->in.scmanager_handle) )
294 return WERR_BADFID;
295
296 /* perform access checks. Use the root token in order to ensure that we
297 retrieve the security descriptor */
298
299 if ( !(sec_desc = svcctl_get_secdesc( p->mem_ctx, service, get_root_nt_token() )) )
300 return WERR_NOMEM;
301
302 se_map_generic( &r->in.access_mask, &svc_generic_map );
303 status = svcctl_access_check( sec_desc, p->server_info->ptok,
304 r->in.access_mask, &access_granted );
305 if ( !NT_STATUS_IS_OK(status) )
306 return ntstatus_to_werror( status );
307
308 return create_open_service_handle( p, r->out.handle, SVC_HANDLE_IS_SERVICE, service, access_granted );
309 }
310
311 /********************************************************************
312 _svcctl_CloseServiceHandle
313 ********************************************************************/
314
315 WERROR _svcctl_CloseServiceHandle(pipes_struct *p,
316 struct svcctl_CloseServiceHandle *r)
317 {
318 if ( !close_policy_hnd( p, r->in.handle ) )
319 return WERR_BADFID;
320
321 ZERO_STRUCTP(r->out.handle);
322
323 return WERR_OK;
324 }
325
326 /********************************************************************
327 _svcctl_GetServiceDisplayNameW
328 ********************************************************************/
329
330 WERROR _svcctl_GetServiceDisplayNameW(pipes_struct *p,
331 struct svcctl_GetServiceDisplayNameW *r)
332 {
333 const char *service;
334 const char *display_name;
335 SERVICE_INFO *info = find_service_info_by_hnd( p, r->in.handle );
336
337 /* can only use an SCM handle here */
338
339 if ( !info || (info->type != SVC_HANDLE_IS_SCM) )
340 return WERR_BADFID;
341
342 service = r->in.service_name;
343
344 display_name = svcctl_lookup_dispname(p->mem_ctx, service,
345 p->server_info->ptok);
346 if (!display_name) {
347 display_name = "";
348 }
349
350 *r->out.display_name = display_name;
351 *r->out.display_name_length = strlen(display_name);
352
353 return WERR_OK;
354 }
355
356 /********************************************************************
357 _svcctl_QueryServiceStatus
358 ********************************************************************/
359
360 WERROR _svcctl_QueryServiceStatus(pipes_struct *p,
361 struct svcctl_QueryServiceStatus *r)
362 {
363 SERVICE_INFO *info = find_service_info_by_hnd( p, r->in.handle );
364
365 /* perform access checks */
366
367 if ( !info || (info->type != SVC_HANDLE_IS_SERVICE) )
368 return WERR_BADFID;
369
370 if ( !(info->access_granted & SC_RIGHT_SVC_QUERY_STATUS) )
371 return WERR_ACCESS_DENIED;
372
373 /* try the service specific status call */
374
375 return info->ops->service_status( info->name, r->out.service_status );
376 }
377
378 /********************************************************************
379 ********************************************************************/
380
381 static int enumerate_status( TALLOC_CTX *ctx, struct ENUM_SERVICE_STATUSW **status, NT_USER_TOKEN *token )
382 {
383 int num_services = 0;
384 int i;
385 struct ENUM_SERVICE_STATUSW *st;
386 const char *display_name;
387
388 /* just count */
389 while ( svcctl_ops[num_services].name )
390 num_services++;
391
392 if ( !(st = TALLOC_ARRAY( ctx, struct ENUM_SERVICE_STATUSW, num_services )) ) {
393 DEBUG(0,("enumerate_status: talloc() failed!\n"));
394 return -1;
395 }
396
397 for ( i=0; i<num_services; i++ ) {
398 st[i].service_name = talloc_strdup(st, svcctl_ops[i].name );
399
400 display_name = svcctl_lookup_dispname(ctx, svcctl_ops[i].name, token );
401 st[i].display_name = talloc_strdup(st, display_name ? display_name : "");
402
403 svcctl_ops[i].ops->service_status( svcctl_ops[i].name, &st[i].status );
404 }
405
406 *status = st;
407
408 return num_services;
409 }
410
411 /********************************************************************
412 _svcctl_EnumServicesStatusW
413 ********************************************************************/
414
415 WERROR _svcctl_EnumServicesStatusW(pipes_struct *p,
416 struct svcctl_EnumServicesStatusW *r)
417 {
418 struct ENUM_SERVICE_STATUSW *services = NULL;
419 int num_services;
420 int i = 0;
421 size_t buffer_size = 0;
422 WERROR result = WERR_OK;
423 SERVICE_INFO *info = find_service_info_by_hnd( p, r->in.handle );
424 NT_USER_TOKEN *token = p->server_info->ptok;
425 DATA_BLOB blob = data_blob_null;
426
427 /* perform access checks */
428
429 if ( !info || (info->type != SVC_HANDLE_IS_SCM) )
430 return WERR_BADFID;
431
432 if ( !(info->access_granted & SC_RIGHT_MGR_ENUMERATE_SERVICE) ) {
433 return WERR_ACCESS_DENIED;
434 }
435
436 num_services = enumerate_status( p->mem_ctx, &services, token );
437 if (num_services == -1 ) {
438 return WERR_NOMEM;
439 }
440
441 for ( i=0; i<num_services; i++ ) {
442 buffer_size += ndr_size_ENUM_SERVICE_STATUSW(&services[i], NULL, 0);
443 }
444
445 buffer_size += buffer_size % 4;
446
447 if (buffer_size > r->in.offered) {
448 num_services = 0;
449 result = WERR_MORE_DATA;
450 }
451
452 if ( W_ERROR_IS_OK(result) ) {
453
454 enum ndr_err_code ndr_err;
455 struct ndr_push *ndr;
456
457 ndr = ndr_push_init_ctx(p->mem_ctx, NULL);
458 if (ndr == NULL) {
459 return WERR_INVALID_PARAM;
460 }
461
462 ndr_err = ndr_push_ENUM_SERVICE_STATUSW_array(
463 ndr, num_services, services);
464 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
465 return ntstatus_to_werror(ndr_map_error2ntstatus(ndr_err));
466 }
467 blob = ndr_push_blob(ndr);
468 memcpy(r->out.service, blob.data, MIN(blob.length, r->in.offered));
469 }
470
471 *r->out.needed = (buffer_size > r->in.offered) ? buffer_size : r->in.offered;
472 *r->out.services_returned = (uint32)num_services;
473 *r->out.resume_handle = 0x0;
474
475 return result;
476 }
477
478 /********************************************************************
479 _svcctl_StartServiceW
480 ********************************************************************/
481
482 WERROR _svcctl_StartServiceW(pipes_struct *p,
483 struct svcctl_StartServiceW *r)
484 {
485 SERVICE_INFO *info = find_service_info_by_hnd( p, r->in.handle );
486
487 /* perform access checks */
488
489 if ( !info || (info->type != SVC_HANDLE_IS_SERVICE) )
490 return WERR_BADFID;
491
492 if ( !(info->access_granted & SC_RIGHT_SVC_START) )
493 return WERR_ACCESS_DENIED;
494
495 return info->ops->start_service( info->name );
496 }
497
498 /********************************************************************
499 _svcctl_ControlService
500 ********************************************************************/
501
502 WERROR _svcctl_ControlService(pipes_struct *p,
503 struct svcctl_ControlService *r)
504 {
505 SERVICE_INFO *info = find_service_info_by_hnd( p, r->in.handle );
506
507 /* perform access checks */
508
509 if ( !info || (info->type != SVC_HANDLE_IS_SERVICE) )
510 return WERR_BADFID;
511
512 switch ( r->in.control ) {
513 case SVCCTL_CONTROL_STOP:
514 if ( !(info->access_granted & SC_RIGHT_SVC_STOP) )
515 return WERR_ACCESS_DENIED;
516
517 return info->ops->stop_service( info->name,
518 r->out.service_status );
519
520 case SVCCTL_CONTROL_INTERROGATE:
521 if ( !(info->access_granted & SC_RIGHT_SVC_QUERY_STATUS) )
522 return WERR_ACCESS_DENIED;
523
524 return info->ops->service_status( info->name,
525 r->out.service_status );
526 default:
527 return WERR_ACCESS_DENIED;
528 }
529 }
530
531 /********************************************************************
532 _svcctl_EnumDependentServicesW
533 ********************************************************************/
534
535 WERROR _svcctl_EnumDependentServicesW(pipes_struct *p,
536 struct svcctl_EnumDependentServicesW *r)
537 {
538 SERVICE_INFO *info = find_service_info_by_hnd( p, r->in.service );
539
540 /* perform access checks */
541
542 if ( !info || (info->type != SVC_HANDLE_IS_SERVICE) )
543 return WERR_BADFID;
544
545 if ( !(info->access_granted & SC_RIGHT_SVC_ENUMERATE_DEPENDENTS) )
546 return WERR_ACCESS_DENIED;
547
548 switch (r->in.state) {
549 case SERVICE_STATE_ACTIVE:
550 case SERVICE_STATE_INACTIVE:
551 case SERVICE_STATE_ALL:
552 break;
553 default:
554 return WERR_INVALID_PARAM;
555 }
556
557 /* we have to set the outgoing buffer size to the same as the
558 incoming buffer size (even in the case of failure */
559 /* this is done in the autogenerated server already - gd */
560
561 *r->out.needed = r->in.offered;
562
563 /* no dependent services...basically a stub function */
564 *r->out.services_returned = 0;
565
566 return WERR_OK;
567 }
568
569 /********************************************************************
570 _svcctl_QueryServiceStatusEx
571 ********************************************************************/
572
573 WERROR _svcctl_QueryServiceStatusEx(pipes_struct *p,
574 struct svcctl_QueryServiceStatusEx *r)
575 {
576 SERVICE_INFO *info = find_service_info_by_hnd( p, r->in.handle );
577 uint32 buffer_size;
578
579 /* perform access checks */
580
581 if ( !info || (info->type != SVC_HANDLE_IS_SERVICE) )
582 return WERR_BADFID;
583
584 if ( !(info->access_granted & SC_RIGHT_SVC_QUERY_STATUS) )
585 return WERR_ACCESS_DENIED;
586
587 /* we have to set the outgoing buffer size to the same as the
588 incoming buffer size (even in the case of failure) */
589 *r->out.needed = r->in.offered;
590
591 switch ( r->in.info_level ) {
592 case SVC_STATUS_PROCESS_INFO:
593 {
594 struct SERVICE_STATUS_PROCESS svc_stat_proc;
595 enum ndr_err_code ndr_err;
596 DATA_BLOB blob;
597
598 /* Get the status of the service.. */
599 info->ops->service_status( info->name, &svc_stat_proc.status );
600 svc_stat_proc.process_id = sys_getpid();
601 svc_stat_proc.service_flags = 0x0;
602
603 ndr_err = ndr_push_struct_blob(&blob, p->mem_ctx, NULL,
604 &svc_stat_proc,
605 (ndr_push_flags_fn_t)ndr_push_SERVICE_STATUS_PROCESS);
606 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
607 return WERR_INVALID_PARAM;
608 }
609
610 r->out.buffer = blob.data;
611 buffer_size = sizeof(struct SERVICE_STATUS_PROCESS);
612 break;
613 }
614
615 default:
616 return WERR_UNKNOWN_LEVEL;
617 }
618
619
620 buffer_size += buffer_size % 4;
621 *r->out.needed = (buffer_size > r->in.offered) ? buffer_size : r->in.offered;
622
623 if (buffer_size > r->in.offered ) {
624 return WERR_INSUFFICIENT_BUFFER;
625 }
626
627 return WERR_OK;
628 }
629
630 /********************************************************************
631 ********************************************************************/
632
633 static WERROR fill_svc_config( TALLOC_CTX *ctx, const char *name,
634 struct QUERY_SERVICE_CONFIG *config,
635 NT_USER_TOKEN *token )
636 {
637 REGVAL_CTR *values;
638 REGISTRY_VALUE *val;
639
640 /* retrieve the registry values for this service */
641
642 if ( !(values = svcctl_fetch_regvalues( name, token )) )
643 return WERR_REG_CORRUPT;
644
645 /* now fill in the individual values */
646
647 if ( (val = regval_ctr_getvalue( values, "DisplayName" )) != NULL )
648 config->displayname = regval_sz(val);
649 else
650 config->displayname = name;
651
652 if ( (val = regval_ctr_getvalue( values, "ObjectName" )) != NULL ) {
653 config->startname = regval_sz(val);
654 }
655
656 if ( (val = regval_ctr_getvalue( values, "ImagePath" )) != NULL ) {
657 config->executablepath = regval_sz(val);
658 }
659
660 /* a few hard coded values */
661 /* loadordergroup and dependencies are empty */
662
663 config->tag_id = 0x00000000; /* unassigned loadorder group */
664 config->service_type = SERVICE_TYPE_WIN32_OWN_PROCESS;
665 config->error_control = SVCCTL_SVC_ERROR_NORMAL;
666
667 /* set the start type. NetLogon and WINS are disabled to prevent
668 the client from showing the "Start" button (if of course the services
669 are not running */
670
671 if ( strequal( name, "NETLOGON" ) && ( lp_servicenumber(name) == -1 ) )
672 config->start_type = SVCCTL_DISABLED;
673 else if ( strequal( name, "WINS" ) && ( !lp_wins_support() ))
674 config->start_type = SVCCTL_DISABLED;
675 else
676 config->start_type = SVCCTL_DEMAND_START;
677
678
679 TALLOC_FREE( values );
680
681 return WERR_OK;
682 }
683
684 /********************************************************************
685 _svcctl_QueryServiceConfigW
686 ********************************************************************/
687
688 WERROR _svcctl_QueryServiceConfigW(pipes_struct *p,
689 struct svcctl_QueryServiceConfigW *r)
690 {
691 SERVICE_INFO *info = find_service_info_by_hnd( p, r->in.handle );
692 uint32 buffer_size;
693 WERROR wresult;
694
695 /* perform access checks */
696
697 if ( !info || (info->type != SVC_HANDLE_IS_SERVICE) )
698 return WERR_BADFID;
699
700 if ( !(info->access_granted & SC_RIGHT_SVC_QUERY_CONFIG) )
701 return WERR_ACCESS_DENIED;
702
703 /* we have to set the outgoing buffer size to the same as the
704 incoming buffer size (even in the case of failure */
705
706 *r->out.needed = r->in.offered;
707
708 wresult = fill_svc_config( p->mem_ctx, info->name, r->out.query,
709 p->server_info->ptok);
710 if ( !W_ERROR_IS_OK(wresult) )
711 return wresult;
712
713 buffer_size = ndr_size_QUERY_SERVICE_CONFIG(r->out.query, NULL, 0);
714 *r->out.needed = (buffer_size > r->in.offered) ? buffer_size : r->in.offered;
715
716 if (buffer_size > r->in.offered ) {
717 ZERO_STRUCTP(r->out.query);
718 return WERR_INSUFFICIENT_BUFFER;
719 }
720
721 return WERR_OK;
722 }
723
724 /********************************************************************
725 _svcctl_QueryServiceConfig2W
726 ********************************************************************/
727
728 WERROR _svcctl_QueryServiceConfig2W(pipes_struct *p,
729 struct svcctl_QueryServiceConfig2W *r)
730 {
731 SERVICE_INFO *info = find_service_info_by_hnd( p, r->in.handle );
732 uint32 buffer_size;
733
734 /* perform access checks */
735
736 if ( !info || (info->type != SVC_HANDLE_IS_SERVICE) )
737 return WERR_BADFID;
738
739 if ( !(info->access_granted & SC_RIGHT_SVC_QUERY_CONFIG) )
740 return WERR_ACCESS_DENIED;
741
742 /* we have to set the outgoing buffer size to the same as the
743 incoming buffer size (even in the case of failure */
744 *r->out.needed = r->in.offered;
745
746 switch ( r->in.info_level ) {
747 case SERVICE_CONFIG_DESCRIPTION:
748 {
749 struct SERVICE_DESCRIPTION desc_buf;
750 const char *description;
751 enum ndr_err_code ndr_err;
752 DATA_BLOB blob;
753
754 description = svcctl_lookup_description(
755 p->mem_ctx, info->name, p->server_info->ptok);
756
757 desc_buf.description = description;
758
759 ndr_err = ndr_push_struct_blob(&blob, p->mem_ctx, NULL,
760 &desc_buf,
761 (ndr_push_flags_fn_t)ndr_push_SERVICE_DESCRIPTION);
762 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
763 return WERR_INVALID_PARAM;
764 }
765
766 buffer_size = ndr_size_SERVICE_DESCRIPTION(&desc_buf, NULL, 0);
767 r->out.buffer = blob.data;
768
769 break;
770 }
771 break;
772 case SERVICE_CONFIG_FAILURE_ACTIONS:
773 {
774 struct SERVICE_FAILURE_ACTIONS actions;
775 enum ndr_err_code ndr_err;
776 DATA_BLOB blob;
777
778 /* nothing to say...just service the request */
779
780 ZERO_STRUCT( actions );
781
782 ndr_err = ndr_push_struct_blob(&blob, p->mem_ctx, NULL,
783 &actions,
784 (ndr_push_flags_fn_t)ndr_push_SERVICE_FAILURE_ACTIONS);
785 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
786 return WERR_INVALID_PARAM;
787 }
788
789 buffer_size = ndr_size_SERVICE_FAILURE_ACTIONS(&actions, NULL, 0);
790 r->out.buffer = blob.data;
791
792 break;
793 }
794 break;
795
796 default:
797 return WERR_UNKNOWN_LEVEL;
798 }
799
800 buffer_size += buffer_size % 4;
801 *r->out.needed = (buffer_size > r->in.offered) ? buffer_size : r->in.offered;
802
803 if (buffer_size > r->in.offered)
804 return WERR_INSUFFICIENT_BUFFER;
805
806 return WERR_OK;
807 }
808
809 /********************************************************************
810 _svcctl_LockServiceDatabase
811 ********************************************************************/
812
813 WERROR _svcctl_LockServiceDatabase(pipes_struct *p,
814 struct svcctl_LockServiceDatabase *r)
815 {
816 SERVICE_INFO *info = find_service_info_by_hnd( p, r->in.handle );
817
818 /* perform access checks */
819
820 if ( !info || (info->type != SVC_HANDLE_IS_SCM) )
821 return WERR_BADFID;
822
823 if ( !(info->access_granted & SC_RIGHT_MGR_LOCK) )
824 return WERR_ACCESS_DENIED;
825
826 /* Just open a handle. Doesn't actually lock anything */
827
828 return create_open_service_handle( p, r->out.lock, SVC_HANDLE_IS_DBLOCK, NULL, 0 );
829 }
830
831 /********************************************************************
832 _svcctl_UnlockServiceDatabase
833 ********************************************************************/
834
835 WERROR _svcctl_UnlockServiceDatabase(pipes_struct *p,
836 struct svcctl_UnlockServiceDatabase *r)
837 {
838 SERVICE_INFO *info = find_service_info_by_hnd( p, r->in.lock );
839
840
841 if ( !info || (info->type != SVC_HANDLE_IS_DBLOCK) )
842 return WERR_BADFID;
843
844 return close_policy_hnd( p, r->out.lock) ? WERR_OK : WERR_BADFID;
845 }
846
847 /********************************************************************
848 _svcctl_QueryServiceObjectSecurity
849 ********************************************************************/
850
851 WERROR _svcctl_QueryServiceObjectSecurity(pipes_struct *p,
852 struct svcctl_QueryServiceObjectSecurity *r)
853 {
854 SERVICE_INFO *info = find_service_info_by_hnd( p, r->in.handle );
855 SEC_DESC *sec_desc;
856 NTSTATUS status;
857 uint8_t *buffer = NULL;
858 size_t len = 0;
859
860
861 /* only support the SCM and individual services */
862
863 if ( !info || !(info->type & (SVC_HANDLE_IS_SERVICE|SVC_HANDLE_IS_SCM)) )
864 return WERR_BADFID;
865
866 /* check access reights (according to MSDN) */
867
868 if ( !(info->access_granted & STD_RIGHT_READ_CONTROL_ACCESS) )
869 return WERR_ACCESS_DENIED;
870
871 /* TODO: handle something besides DACL_SECURITY_INFORMATION */
872
873 if ( (r->in.security_flags & DACL_SECURITY_INFORMATION) != DACL_SECURITY_INFORMATION )
874 return WERR_INVALID_PARAM;
875
876 /* lookup the security descriptor and marshall it up for a reply */
877
878 if ( !(sec_desc = svcctl_get_secdesc( p->mem_ctx, info->name, get_root_nt_token() )) )
879 return WERR_NOMEM;
880
881 *r->out.needed = ndr_size_security_descriptor( sec_desc, NULL, 0 );
882
883 if ( *r->out.needed > r->in.offered) {
884 return WERR_INSUFFICIENT_BUFFER;
885 }
886
887 status = marshall_sec_desc(p->mem_ctx, sec_desc, &buffer, &len);
888 if (!NT_STATUS_IS_OK(status)) {
889 return ntstatus_to_werror(status);
890 }
891
892 *r->out.needed = len;
893 r->out.buffer = buffer;
894
895 return WERR_OK;
896 }
897
898 /********************************************************************
899 _svcctl_SetServiceObjectSecurity
900 ********************************************************************/
901
902 WERROR _svcctl_SetServiceObjectSecurity(pipes_struct *p,
903 struct svcctl_SetServiceObjectSecurity *r)
904 {
905 SERVICE_INFO *info = find_service_info_by_hnd( p, r->in.handle );
906 SEC_DESC *sec_desc = NULL;
907 uint32 required_access;
908 NTSTATUS status;
909
910 if ( !info || !(info->type & (SVC_HANDLE_IS_SERVICE|SVC_HANDLE_IS_SCM)) )
911 return WERR_BADFID;
912
913 /* can't set the security de4scriptor on the ServiceControlManager */
914
915 if ( info->type == SVC_HANDLE_IS_SCM )
916 return WERR_ACCESS_DENIED;
917
918 /* check the access on the open handle */
919
920 switch ( r->in.security_flags ) {
921 case DACL_SECURITY_INFORMATION:
922 required_access = STD_RIGHT_WRITE_DAC_ACCESS;
923 break;
924
925 case OWNER_SECURITY_INFORMATION:
926 case GROUP_SECURITY_INFORMATION:
927 required_access = STD_RIGHT_WRITE_OWNER_ACCESS;
928 break;
929
930 case SACL_SECURITY_INFORMATION:
931 return WERR_INVALID_PARAM;
932 default:
933 return WERR_INVALID_PARAM;
934 }
935
936 if ( !(info->access_granted & required_access) )
937 return WERR_ACCESS_DENIED;
938
939 /* read the security descfriptor */
940
941 status = unmarshall_sec_desc(p->mem_ctx,
942 r->in.buffer,
943 r->in.offered,
944 &sec_desc);
945 if (!NT_STATUS_IS_OK(status)) {
946 return ntstatus_to_werror(status);
947 }
948
949 /* store the new SD */
950
951 if ( !svcctl_set_secdesc( p->mem_ctx, info->name, sec_desc,
952 p->server_info->ptok) )
953 return WERR_ACCESS_DENIED;
954
955 return WERR_OK;
956 }
957
958
959 WERROR _svcctl_DeleteService(pipes_struct *p, struct svcctl_DeleteService *r)
960 {
961 p->rng_fault_state = True;
962 return WERR_NOT_SUPPORTED;
963 }
964
965 WERROR _svcctl_SetServiceStatus(pipes_struct *p, struct svcctl_SetServiceStatus *r)
966 {
967 p->rng_fault_state = True;
968 return WERR_NOT_SUPPORTED;
969 }
970
971 WERROR _svcctl_NotifyBootConfigStatus(pipes_struct *p, struct svcctl_NotifyBootConfigStatus *r)
972 {
973 p->rng_fault_state = True;
974 return WERR_NOT_SUPPORTED;
975 }
976
977 WERROR _svcctl_SCSetServiceBitsW(pipes_struct *p, struct svcctl_SCSetServiceBitsW *r)
978 {
979 p->rng_fault_state = True;
980 return WERR_NOT_SUPPORTED;
981 }
982
983 WERROR _svcctl_ChangeServiceConfigW(pipes_struct *p, struct svcctl_ChangeServiceConfigW *r)
984 {
985 p->rng_fault_state = True;
986 return WERR_NOT_SUPPORTED;
987 }
988
989 WERROR _svcctl_CreateServiceW(pipes_struct *p, struct svcctl_CreateServiceW *r)
990 {
991 p->rng_fault_state = True;
992 return WERR_NOT_SUPPORTED;
993 }
994
995 WERROR _svcctl_QueryServiceLockStatusW(pipes_struct *p, struct svcctl_QueryServiceLockStatusW *r)
996 {
997 p->rng_fault_state = True;
998 return WERR_NOT_SUPPORTED;
999 }
1000
1001 WERROR _svcctl_GetServiceKeyNameW(pipes_struct *p, struct svcctl_GetServiceKeyNameW *r)
1002 {
1003 p->rng_fault_state = True;
1004 return WERR_NOT_SUPPORTED;
1005 }
1006
1007 WERROR _svcctl_SCSetServiceBitsA(pipes_struct *p, struct svcctl_SCSetServiceBitsA *r)
1008 {
1009 p->rng_fault_state = True;
1010 return WERR_NOT_SUPPORTED;
1011 }
1012
1013 WERROR _svcctl_ChangeServiceConfigA(pipes_struct *p, struct svcctl_ChangeServiceConfigA *r)
1014 {
1015 p->rng_fault_state = True;
1016 return WERR_NOT_SUPPORTED;
1017 }
1018
1019 WERROR _svcctl_CreateServiceA(pipes_struct *p, struct svcctl_CreateServiceA *r)
1020 {
1021 p->rng_fault_state = True;
1022 return WERR_NOT_SUPPORTED;
1023 }
1024
1025 WERROR _svcctl_EnumDependentServicesA(pipes_struct *p, struct svcctl_EnumDependentServicesA *r)
1026 {
1027 p->rng_fault_state = True;
1028 return WERR_NOT_SUPPORTED;
1029 }
1030
1031 WERROR _svcctl_EnumServicesStatusA(pipes_struct *p, struct svcctl_EnumServicesStatusA *r)
1032 {
1033 p->rng_fault_state = True;
1034 return WERR_NOT_SUPPORTED;
1035 }
1036
1037 WERROR _svcctl_OpenSCManagerA(pipes_struct *p, struct svcctl_OpenSCManagerA *r)
1038 {
1039 p->rng_fault_state = True;
1040 return WERR_NOT_SUPPORTED;
1041 }
1042
1043 WERROR _svcctl_OpenServiceA(pipes_struct *p, struct svcctl_OpenServiceA *r)
1044 {
1045 p->rng_fault_state = True;
1046 return WERR_NOT_SUPPORTED;
1047 }
1048
1049 WERROR _svcctl_QueryServiceConfigA(pipes_struct *p, struct svcctl_QueryServiceConfigA *r)
1050 {
1051 p->rng_fault_state = True;
1052 return WERR_NOT_SUPPORTED;
1053 }
1054
1055 WERROR _svcctl_QueryServiceLockStatusA(pipes_struct *p, struct svcctl_QueryServiceLockStatusA *r)
1056 {
1057 p->rng_fault_state = True;
1058 return WERR_NOT_SUPPORTED;
1059 }
1060
1061 WERROR _svcctl_StartServiceA(pipes_struct *p, struct svcctl_StartServiceA *r)
1062 {
1063 p->rng_fault_state = True;
1064 return WERR_NOT_SUPPORTED;
1065 }
1066
1067 WERROR _svcctl_GetServiceDisplayNameA(pipes_struct *p, struct svcctl_GetServiceDisplayNameA *r)
1068 {
1069 p->rng_fault_state = True;
1070 return WERR_NOT_SUPPORTED;
1071 }
1072
1073 WERROR _svcctl_GetServiceKeyNameA(pipes_struct *p, struct svcctl_GetServiceKeyNameA *r)
1074 {
1075 p->rng_fault_state = True;
1076 return WERR_NOT_SUPPORTED;
1077 }
1078
1079 WERROR _svcctl_GetCurrentGroupeStateW(pipes_struct *p, struct svcctl_GetCurrentGroupeStateW *r)
1080 {
1081 p->rng_fault_state = True;
1082 return WERR_NOT_SUPPORTED;
1083 }
1084
1085 WERROR _svcctl_EnumServiceGroupW(pipes_struct *p, struct svcctl_EnumServiceGroupW *r)
1086 {
1087 p->rng_fault_state = True;
1088 return WERR_NOT_SUPPORTED;
1089 }
1090
1091 WERROR _svcctl_ChangeServiceConfig2A(pipes_struct *p, struct svcctl_ChangeServiceConfig2A *r)
1092 {
1093 p->rng_fault_state = True;
1094 return WERR_NOT_SUPPORTED;
1095 }
1096
1097 WERROR _svcctl_ChangeServiceConfig2W(pipes_struct *p, struct svcctl_ChangeServiceConfig2W *r)
1098 {
1099 p->rng_fault_state = True;
1100 return WERR_NOT_SUPPORTED;
1101 }
1102
1103 WERROR _svcctl_QueryServiceConfig2A(pipes_struct *p, struct svcctl_QueryServiceConfig2A *r)
1104 {
1105 p->rng_fault_state = True;
1106 return WERR_NOT_SUPPORTED;
1107 }
1108
1109 WERROR _EnumServicesStatusExA(pipes_struct *p, struct EnumServicesStatusExA *r)
1110 {
1111 p->rng_fault_state = True;
1112 return WERR_NOT_SUPPORTED;
1113 }
1114
1115 WERROR _EnumServicesStatusExW(pipes_struct *p, struct EnumServicesStatusExW *r)
1116 {
1117 p->rng_fault_state = True;
1118 return WERR_NOT_SUPPORTED;
1119 }
1120
1121 WERROR _svcctl_SCSendTSMessage(pipes_struct *p, struct svcctl_SCSendTSMessage *r)
1122 {
1123 p->rng_fault_state = True;
1124 return WERR_NOT_SUPPORTED;
1125 }
1126
WIP