/* packet-dcerpc-svcctl.c * Routines for SMB \PIPE\svcctl packet disassembly * Copyright 2003, Tim Potter * Copyright 2003, Ronnie Sahlberg, added function dissectors * * $Id: packet-dcerpc-svcctl.c,v 1.15 2004/03/30 07:39:05 sharpe Exp $ * * Ethereal - Network traffic analyzer * By Gerald Combs * Copyright 1998 Gerald Combs * * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include #include #include "packet-dcerpc.h" #include "packet-dcerpc-svcctl.h" #include "packet-dcerpc-nt.h" #include "smb.h" #include "packet-smb-common.h" static int proto_dcerpc_svcctl = -1; static int hf_svcctl_opnum = -1; static int hf_svcctl_machinename = -1; static int hf_svcctl_database = -1; static int hf_svcctl_access_mask = -1; static int hf_svcctl_scm_rights_connect = -1; static int hf_svcctl_scm_rights_create_service = -1; static int hf_svcctl_scm_rights_enumerate_service = -1; static int hf_svcctl_scm_rights_lock = -1; static int hf_svcctl_scm_rights_query_lock_status = -1; static int hf_svcctl_scm_rights_modify_boot_config = -1; static int hf_svcctl_hnd = -1; static int hf_svcctl_lock = -1; static int hf_svcctl_rc = -1; static int hf_svcctl_size = -1; static int hf_svcctl_required_size = -1; static int hf_svcctl_is_locked = -1; static int hf_svcctl_lock_duration = -1; static int hf_svcctl_lock_owner = -1; static int hf_svcctl_service_type = -1; static int hf_svcctl_service_state = -1; static int hf_svcctl_resume = -1; static gint ett_dcerpc_svcctl = -1; static e_uuid_t uuid_dcerpc_svcctl = { 0x367abb81, 0x9844, 0x35f1, { 0xad, 0x32, 0x98, 0xf0, 0x38, 0x00, 0x10, 0x03 } }; static guint16 ver_dcerpc_svcctl = 2; static int svcctl_dissect_pointer_long(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, guint8 *drep) { dcerpc_info *di; di=pinfo->private_data; offset = dissect_ndr_uint32 (tvb, offset, pinfo, tree, drep, di->hf_index, NULL); return offset; } static void svcctl_scm_specific_rights(tvbuff_t *tvb, gint offset, proto_tree *tree, guint32 access) { proto_tree_add_boolean(tree, hf_svcctl_scm_rights_modify_boot_config, tvb, offset, 4, access); proto_tree_add_boolean(tree, hf_svcctl_scm_rights_query_lock_status, tvb, offset, 4, access); proto_tree_add_boolean(tree, hf_svcctl_scm_rights_lock, tvb, offset, 4, access); proto_tree_add_boolean(tree, hf_svcctl_scm_rights_enumerate_service, tvb, offset, 4, access); proto_tree_add_boolean(tree, hf_svcctl_scm_rights_create_service, tvb, offset, 4, access); proto_tree_add_boolean(tree, hf_svcctl_scm_rights_connect, tvb, offset, 4, access); } struct access_mask_info svcctl_scm_access_mask_info = { "SVCCTL", svcctl_scm_specific_rights, NULL, /* Generic mapping table */ NULL /* Standard mapping table */ }; /* * IDL long OpenSCManager( * IDL [in] [string] [unique] char *MachineName, * IDL [in] [string] [unique] char *DatabaseName, * IDL [in] long access_mask, * IDL [out] SC_HANDLE handle, * IDL ); */ static int svcctl_dissect_OpenSCManager_rqst(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, guint8 *drep) { /* MachineName */ offset = dissect_ndr_pointer_cb( tvb, offset, pinfo, tree, drep, dissect_ndr_char_cvstring, NDR_POINTER_UNIQUE, "MachineName", hf_svcctl_machinename, cb_str_postprocess, GINT_TO_POINTER(CB_STR_COL_INFO | CB_STR_SAVE | 1)); /* DatabaseName */ offset = dissect_ndr_pointer_cb( tvb, offset, pinfo, tree, drep, dissect_ndr_char_cvstring, NDR_POINTER_UNIQUE, "Database", hf_svcctl_database, cb_str_postprocess, GINT_TO_POINTER(CB_STR_COL_INFO | 1)); /* access mask */ offset = dissect_nt_access_mask( tvb, offset, pinfo, tree, drep, hf_svcctl_access_mask, &svcctl_scm_access_mask_info, NULL); return offset; } static int svcctl_dissect_OpenSCManager_reply(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, guint8 *drep) { dcerpc_info *di = (dcerpc_info *)pinfo->private_data; dcerpc_call_value *dcv = (dcerpc_call_value *)di->call_data; e_ctx_hnd policy_hnd; proto_item *hnd_item; guint32 status; /* Parse packet */ offset = dissect_nt_policy_hnd( tvb, offset, pinfo, tree, drep, hf_svcctl_hnd, &policy_hnd, &hnd_item, TRUE, FALSE); offset = dissect_doserror( tvb, offset, pinfo, tree, drep, hf_svcctl_rc, &status); if (status == 0) { /* Associate the returned svcctl with a name */ if (dcv->private_data) { char *pol_name; pol_name = g_strdup_printf( "OpenSCManager(%s)", (char *)dcv->private_data); dcerpc_smb_store_pol_name(&policy_hnd, pinfo, pol_name); g_free(pol_name); g_free(dcv->private_data); dcv->private_data = NULL; } /* * If we have a name for the handle, attach it to the item. * * XXX - we can't just do that above, as this may be called * twice (see "dissect_pipe_dcerpc()", which calls the * DCE RPC dissector twice), and in the first call we're * not building a protocol tree (so we don't have an item * to which to attach it) and in the second call * "dcv->private_data" is NULL so we don't construct a * name. */ if (hnd_item != NULL) { char *name; if (dcerpc_smb_fetch_pol(&policy_hnd, &name, NULL, NULL, pinfo->fd->num) && name != NULL) proto_item_append_text(hnd_item, ": %s", name); } } return offset; } /* * IDL BOOL CloseServiceHandle( * IDL [in][out] SC_HANDLE handle * IDL ); */ static int svcctl_dissect_CloseServiceHandle_rqst(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, guint8 *drep) { e_ctx_hnd policy_hnd; char *pol_name; /* Parse packet */ offset = dissect_nt_policy_hnd( tvb, offset, pinfo, tree, drep, hf_svcctl_hnd, &policy_hnd, NULL, FALSE, TRUE); dcerpc_smb_fetch_pol(&policy_hnd, &pol_name, NULL, NULL, pinfo->fd->num); if (check_col(pinfo->cinfo, COL_INFO) && pol_name) col_append_fstr(pinfo->cinfo, COL_INFO, ", %s", pol_name); return offset; } static int svcctl_dissect_CloseServiceHandle_reply(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, guint8 *drep) { offset = dissect_nt_policy_hnd( tvb, offset, pinfo, tree, drep, hf_svcctl_hnd, NULL, NULL, FALSE, TRUE); offset = dissect_doserror( tvb, offset, pinfo, tree, drep, hf_svcctl_rc, NULL); return offset; } /* * IDL long LockServiceDatabase( * IDL [in] SC_HANDLE dbhandle, * IDL [out] SC_HANDLE lock, * IDL ); */ static int svcctl_dissect_LockServiceDatabase_rqst(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, guint8 *drep) { /* XXX - why is the "is a close" argument TRUE? */ offset = dissect_nt_policy_hnd( tvb, offset, pinfo, tree, drep, hf_svcctl_hnd, NULL, NULL, FALSE, TRUE); return offset; } static int svcctl_dissect_LockServiceDatabase_reply(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, guint8 *drep) { /* XXX - why is the "is an open" argument TRUE? */ offset = dissect_nt_policy_hnd( tvb, offset, pinfo, tree, drep, hf_svcctl_lock, NULL, NULL, TRUE, FALSE); offset = dissect_doserror( tvb, offset, pinfo, tree, drep, hf_svcctl_rc, NULL); return offset; } /* * IDL long UnlockServiceDatabase( * IDL [in][out] SC_HANDLE lock, * IDL ); */ static int svcctl_dissect_UnlockServiceDatabase_rqst(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, guint8 *drep) { /* XXX - why is the "is a close" argument TRUE? */ offset = dissect_nt_policy_hnd( tvb, offset, pinfo, tree, drep, hf_svcctl_lock, NULL, NULL, FALSE, TRUE); return offset; } static int svcctl_dissect_UnlockServiceDatabase_reply(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, guint8 *drep) { /* XXX - why is the "is an open" argument TRUE? */ offset = dissect_nt_policy_hnd( tvb, offset, pinfo, tree, drep, hf_svcctl_lock, NULL, NULL, TRUE, FALSE); offset = dissect_doserror( tvb, offset, pinfo, tree, drep, hf_svcctl_rc, NULL); return offset; } /* * IDL typedef struct { * IDL long is_locked, * IDL [unique][string] char *lock_owner, * IDL long lock_duration, * IDL }; */ static int svcctl_dissect_QUERY_SERVICE_LOCK_STATUS(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, guint8 *drep) { offset = dissect_ndr_uint32 (tvb, offset, pinfo, tree, drep, hf_svcctl_is_locked, NULL); offset = dissect_ndr_pointer( tvb, offset, pinfo, tree, drep, dissect_ndr_char_cvstring, NDR_POINTER_UNIQUE, "Owner", hf_svcctl_lock_owner); offset = dissect_ndr_uint32 (tvb, offset, pinfo, tree, drep, hf_svcctl_lock_duration, NULL); return offset; } /* * IDL long QueryServiceLockStatus( * IDL [in] SC_HANDLE db_handle, * IDL [in] long buf_size, * IDL [out][ref] QUERY_SERVICE_LOCK_STATUS *status, * IDL [out][ref] long *required_buf_size * IDL ); */ static int svcctl_dissect_QueryServiceLockStatus_rqst(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, guint8 *drep) { /* XXX - why is the "is a close" argument TRUE? */ offset = dissect_nt_policy_hnd( tvb, offset, pinfo, tree, drep, hf_svcctl_hnd, NULL, NULL, FALSE, TRUE); offset = dissect_ndr_uint32 (tvb, offset, pinfo, tree, drep, hf_svcctl_size, NULL); return offset; } static int svcctl_dissect_QueryServiceLockStatus_reply(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, guint8 *drep) { offset = dissect_ndr_pointer(tvb, offset, pinfo, tree, drep, svcctl_dissect_QUERY_SERVICE_LOCK_STATUS, NDR_POINTER_REF, "LOCK_STATUS", -1); offset = dissect_ndr_uint32 (tvb, offset, pinfo, tree, drep, hf_svcctl_required_size, NULL); offset = dissect_doserror( tvb, offset, pinfo, tree, drep, hf_svcctl_rc, NULL); return offset; } #define SVCCTL_SERVICE_DRIVER 0x0b #define SVCCTL_SERVICE_WIN32 0x30 static const value_string svcctl_service_type_vals[] = { { SVCCTL_SERVICE_DRIVER, "SERVICE_DRIVER" }, { SVCCTL_SERVICE_WIN32, "SERVICE_WIN32" }, { 0, NULL } }; #define SVCCTL_SERVICE_ACTIVE 0x01 #define SVCCTL_SERVICE_INACTIVE 0x02 #define SVCCTL_SERVICE_STATE_ALL 0x03 static const value_string svcctl_service_status_vals[] = { { SVCCTL_SERVICE_ACTIVE, "SERVICE_ACTIVE" }, { SVCCTL_SERVICE_INACTIVE, "SERVICE_INACTIVE" }, { SVCCTL_SERVICE_STATE_ALL, "SERVICE_STATE_ALL" }, { 0, NULL } }; /* * IDL long EnumServicesStatus( * IDL [in] SC_HANDLE db_handle, * IDL [in] long type, * IDL [in] long status, * IDL [in] long buf_size, * IDL [in][unique] long *resume_handle, * IDL ); */ static int svcctl_dissect_EnumServicesStatus_rqst(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, guint8 *drep) { /* XXX - why is the "is a close" argument TRUE? */ offset = dissect_nt_policy_hnd( tvb, offset, pinfo, tree, drep, hf_svcctl_hnd, NULL, NULL, FALSE, TRUE); offset = dissect_ndr_uint32 (tvb, offset, pinfo, tree, drep, hf_svcctl_service_type, NULL); offset = dissect_ndr_uint32 (tvb, offset, pinfo, tree, drep, hf_svcctl_service_state, NULL); offset = dissect_ndr_uint32 (tvb, offset, pinfo, tree, drep, hf_svcctl_size, NULL); offset = dissect_ndr_pointer(tvb, offset, pinfo, tree, drep, svcctl_dissect_pointer_long, NDR_POINTER_UNIQUE, "Resume Handle", hf_svcctl_resume); return offset; } static dcerpc_sub_dissector dcerpc_svcctl_dissectors[] = { { SVC_CLOSE_SERVICE_HANDLE, "CloseServiceHandle", svcctl_dissect_CloseServiceHandle_rqst, svcctl_dissect_CloseServiceHandle_reply }, { SVC_CONTROL_SERVICE, "ControlService", NULL, NULL }, { SVC_DELETE_SERVICE, "DeleteService", NULL, NULL }, { SVC_LOCK_SERVICE_DATABASE, "LockServiceDatabase", svcctl_dissect_LockServiceDatabase_rqst, svcctl_dissect_LockServiceDatabase_reply }, { SVC_QUERY_SERVICE_OBJECT_SECURITY, "QueryServiceObjectSecurity", NULL, NULL }, { SVC_SET_SERVICE_OBJECT_SECURITY, "SetServiceObjectSecurity", NULL, NULL }, { SVC_QUERY_SERVICE_STATUS, "QueryServiceStatus", NULL, NULL }, { SVC_SET_SERVICE_STATUS, "SetServiceStatus", NULL, NULL }, { SVC_UNLOCK_SERVICE_DATABASE, "UnlockServiceDatabase", svcctl_dissect_UnlockServiceDatabase_rqst, svcctl_dissect_UnlockServiceDatabase_reply }, { SVC_NOTIFY_BOOT_CONFIG_STATUS, "NotifyBootConfigStatus", NULL, NULL }, { SVC_SC_SET_SERVICE_BITS_W, "ScSetServiceBitsW", NULL, NULL }, { SVC_CHANGE_SERVICE_CONFIG_W, "ChangeServiceConfigW", NULL, NULL }, { SVC_CREATE_SERVICE_W, "CreateServiceW", NULL, NULL }, { SVC_ENUM_DEPENDENT_SERVICES_W, "EnumDependentServicesW", NULL, NULL }, { SVC_ENUM_SERVICES_STATUS_W, "EnumServicesStatusW", NULL, NULL }, { SVC_OPEN_SC_MANAGER_W, "OpenSCManagerW", NULL, NULL }, { SVC_OPEN_SERVICE_W, "OpenServiceW", NULL, NULL }, { SVC_QUERY_SERVICE_CONFIG_W, "QueryServiceConfigW", NULL, NULL }, { SVC_QUERY_SERVICE_LOCK_STATUS_W, "QueryServiceLockStatusW", NULL, NULL }, { SVC_START_SERVICE_W, "StartServiceW", NULL, NULL }, { SVC_GET_SERVICE_DISPLAY_NAME_W, "GetServiceDisplayNameW", NULL, NULL }, { SVC_GET_SERVICE_KEY_NAME_W, "GetServiceKeyNameW", NULL, NULL }, { SVC_SC_SET_SERVICE_BITS_A, "ScSetServiceBitsA", NULL, NULL }, { SVC_CHANGE_SERVICE_CONFIG_A, "ChangeServiceConfigA", NULL, NULL }, { SVC_CREATE_SERVICE_A, "CreateServiceA", NULL, NULL }, { SVC_ENUM_DEPENDENT_SERVICES_A, "EnumDependentServicesA", NULL, NULL }, { SVC_ENUM_SERVICES_STATUS_A, "EnumServicesStatusA", svcctl_dissect_EnumServicesStatus_rqst, NULL }, { SVC_OPEN_SC_MANAGER_A, "OpenSCManagerA", svcctl_dissect_OpenSCManager_rqst, svcctl_dissect_OpenSCManager_reply }, { SVC_OPEN_SERVICE_A, "OpenServiceA", NULL, NULL }, { SVC_QUERY_SERVICE_CONFIG_A, "QueryServiceConfigA", NULL, NULL }, { SVC_QUERY_SERVICE_LOCK_STATUS_A, "QueryServiceLockStatusA", svcctl_dissect_QueryServiceLockStatus_rqst, svcctl_dissect_QueryServiceLockStatus_reply }, { SVC_START_SERVICE_A, "StartServiceA", NULL, NULL }, { SVC_GET_SERVICE_DISPLAY_NAME_A, "GetServiceDisplayNameA", NULL, NULL }, { SVC_GET_SERVICE_KEY_NAME_A, "GetServiceKeyNameA", NULL, NULL }, { SVC_SC_GET_CURRENT_GROUPE_STATE_W, "ScGetCurrentGroupStateW", NULL, NULL }, { SVC_ENUM_SERVICE_GROUP_W, "EnumServiceGroupW", NULL, NULL }, { SVC_CHANGE_SERVICE_CONFIG2_A, "ChangeServiceConfig2A", NULL, NULL }, { SVC_CHANGE_SERVICE_CONFIG2_W, "ChangeServiceConfig2W", NULL, NULL }, { SVC_QUERY_SERVICE_CONFIG2_A, "QueryServiceConfig2A", NULL, NULL }, { SVC_QUERY_SERVICE_CONFIG2_W, "QueryServiceConfig2W", NULL, NULL }, { SVC_QUERY_SERVICE_STATUS_EX, "QueryServiceStatusEx", NULL, NULL }, { SVC_ENUM_SERVICES_STATUS_EX_A, "EnumServicesStatusExA", NULL, NULL }, { SVC_ENUM_SERVICES_STATUS_EX_W, "EnumServicesStatusExW", NULL, NULL }, { SVC_SC_SEND_TS_MESSAGE, "ScSendTSMessage", NULL, NULL }, {0, NULL, NULL, NULL} }; void proto_register_dcerpc_svcctl(void) { static hf_register_info hf[] = { { &hf_svcctl_opnum, { "Operation", "svcctl.opnum", FT_UINT16, BASE_DEC, NULL, 0x0, "Operation", HFILL }}, { &hf_svcctl_machinename, { "MachineName", "svcctl.machinename", FT_STRING, BASE_NONE, NULL, 0x0, "Name of the host we want to open the database on", HFILL }}, { &hf_svcctl_database, { "Database", "svcctl.database", FT_STRING, BASE_NONE, NULL, 0x0, "Name of the database to open", HFILL }}, { &hf_svcctl_access_mask, { "Access Mask", "svcctl.access_mask", FT_UINT32, BASE_HEX, NULL, 0x0, "SVCCTL Access Mask", HFILL }}, { &hf_svcctl_scm_rights_connect, { "Connect", "svcctl.scm_rights_connect", FT_BOOLEAN, 32, TFS(&flags_set_truth), 0x00000001, "SVCCTL Rights to connect to SCM", HFILL }}, { &hf_svcctl_scm_rights_create_service, { "Create Service", "svcctl.scm_rights_create_service", FT_BOOLEAN, 32, TFS(&flags_set_truth), 0x00000002, "SVCCTL Rights to create services", HFILL }}, { &hf_svcctl_scm_rights_enumerate_service, { "Enumerate Service", "svcctl.scm_rights_enumerate_service", FT_BOOLEAN, 32, TFS(&flags_set_truth), 0x00000004, "SVCCTL Rights to enumerate services", HFILL }}, { &hf_svcctl_scm_rights_lock, { "Lock", "svcctl.scm_rights_lock", FT_BOOLEAN, 32, TFS(&flags_set_truth), 0x00000008, "SVCCTL Rights to lock database", HFILL }}, { &hf_svcctl_scm_rights_query_lock_status, { "Query Lock Status", "svcctl.scm_rights_query_lock_status", FT_BOOLEAN, 32, TFS(&flags_set_truth), 0x00000010, "SVCCTL Rights to query database lock status", HFILL }}, { &hf_svcctl_scm_rights_modify_boot_config, { "Modify Boot Config", "svcctl.scm_rights_modify_boot_config", FT_BOOLEAN, 32, TFS(&flags_set_truth), 0x00000020, "SVCCTL Rights to modify boot config", HFILL }}, { &hf_svcctl_hnd, { "Context Handle", "svcctl.hnd", FT_BYTES, BASE_NONE, NULL, 0x0, "SVCCTL Context handle", HFILL }}, { &hf_svcctl_lock, { "Lock", "svcctl.lock", FT_BYTES, BASE_NONE, NULL, 0x0, "SVCCTL Database Lock", HFILL }}, { &hf_svcctl_rc, { "Return code", "svcctl.rc", FT_UINT32, BASE_HEX, VALS(DOS_errors), 0x0, "SVCCTL return code", HFILL }}, { &hf_svcctl_size, { "Size", "svcctl.size", FT_UINT32, BASE_DEC, NULL, 0x0, "SVCCTL size of buffer", HFILL }}, { &hf_svcctl_required_size, { "Required Size", "svcctl.required_size", FT_UINT32, BASE_DEC, NULL, 0x0, "SVCCTL required size of buffer for data to fit", HFILL }}, { &hf_svcctl_is_locked, { "IsLocked", "svcctl.is_locked", FT_UINT32, BASE_DEC, NULL, 0x0, "SVCCTL whether the database is locked or not", HFILL }}, { &hf_svcctl_lock_duration, { "Duration", "svcctl.lock_duration", FT_UINT32, BASE_DEC, NULL, 0x0, "SVCCTL number of seconds the database has been locked", HFILL }}, { &hf_svcctl_lock_owner, { "Owner", "svcctl.lock_owner", FT_STRING, BASE_NONE, NULL, 0x0, "SVCCTL the user that holds the database lock", HFILL }}, { &hf_svcctl_service_type, { "Type", "svcctl.service_type", FT_UINT32, BASE_DEC, VALS(svcctl_service_type_vals), 0x0, "SVCCTL type of service", HFILL }}, { &hf_svcctl_service_state, { "State", "svcctl.service_state", FT_UINT32, BASE_DEC, VALS(svcctl_service_status_vals), 0x0, "SVCCTL service state", HFILL }}, { &hf_svcctl_resume, { "Resume Handle", "svcctl.resume", FT_UINT32, BASE_DEC, NULL, 0x0, "SVCCTL resume handle", HFILL }}, }; static gint *ett[] = { &ett_dcerpc_svcctl, }; proto_dcerpc_svcctl = proto_register_protocol( "Microsoft Service Control", "SVCCTL", "svcctl"); proto_register_field_array(proto_dcerpc_svcctl, hf, array_length(hf)); proto_register_subtree_array(ett, array_length(ett)); } void proto_reg_handoff_dcerpc_svcctl(void) { /* Register protocol as dcerpc */ dcerpc_init_uuid(proto_dcerpc_svcctl, ett_dcerpc_svcctl, &uuid_dcerpc_svcctl, ver_dcerpc_svcctl, dcerpc_svcctl_dissectors, hf_svcctl_opnum); }