--- /dev/null
+/*
+ * 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "includes.h"
+
+#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 struct generic_mapping scm_generic_map =
+ { SC_MANAGER_READ_ACCESS, SC_MANAGER_WRITE_ACCESS, SC_MANAGER_EXECUTE_ACCESS, SC_MANAGER_ALL_ACCESS };
+static 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
+ retreive 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_close_service(pipes_struct *p, SVCCTL_Q_CLOSE_SERVICE *q_u, SVCCTL_R_CLOSE_SERVICE *r_u)
+{
+ return close_policy_hnd( p, &q_u->handle ) ? WERR_OK : WERR_BADFID;
+}
+
+/********************************************************************
+********************************************************************/
+
+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;
+ uint32 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;
+
+ if ( (num_services = enumerate_status( p->mem_ctx, &services, token )) == -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 = 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;
+}
+
+
projects / samba / blobdiff