source3/rpc_server/srv_svcctl_nt.c

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