diff options
Diffstat (limited to 'epan/dissectors/packet-m2ua.c')
| -rw-r--r-- | epan/dissectors/packet-m2ua.c | 1160 |
1 files changed, 1160 insertions, 0 deletions
diff --git a/epan/dissectors/packet-m2ua.c b/epan/dissectors/packet-m2ua.c new file mode 100644 index 0000000000..48ab05a047 --- /dev/null +++ b/epan/dissectors/packet-m2ua.c @@ -0,0 +1,1160 @@ +/* packet-m2ua.c + * Routines for MTP2 User Adaptation Layer dissection + * It is hopefully (needs testing) compilant to + * http://www.ietf.org/rfc/rfc3331.txt + * To do: - provide better handling of length parameters + * + * Copyright 2002, Michael Tuexen <tuexen [AT] fh-muenster.de> + * + * $Id$ + * + * Ethereal - Network traffic analyzer + * By Gerald Combs <gerald@ethereal.com> + * Copyright 1998 Gerald Combs + * + * Copied from README.developer + * + * 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 <epan/packet.h> +#include "prefs.h" +#include "sctpppids.h" + +#define SCTP_PORT_M2UA 2904 +#define NETWORK_BYTE_ORDER FALSE + + + +/* Initialize the protocol and registered fields */ +static int proto_m2ua = -1; +static int hf_version = -1; +static int hf_reserved = -1; +static int hf_message_class = -1; +static int hf_message_type = -1; +static int hf_message_length = -1; +static int hf_parameter_tag = -1; +static int hf_parameter_length = -1; +static int hf_parameter_value = -1; +static int hf_parameter_padding = -1; +static int hf_interface_id_int = -1; +static int hf_interface_id_text = -1; +static int hf_info_string = -1; +static int hf_diagnostic_information = -1; +static int hf_interface_id_start = -1; +static int hf_interface_id_stop = -1; +static int hf_heartbeat_data = -1; +static int hf_traffic_mode_type = -1; +static int hf_error_code = -1; +static int hf_status_type = -1; +static int hf_status_ident = -1; +static int hf_asp_id = -1; +static int hf_correlation_id = -1; +static int hf_data_2_li = -1; +static int hf_state = -1; +static int hf_event = -1; +static int hf_congestion_status = -1; +static int hf_discard_status = -1; +static int hf_action = -1; +static int hf_sequence_number = -1; +static int hf_retrieval_result = -1; +static int hf_local_lk_id = -1; +static int hf_sdt_reserved = -1; +static int hf_sdt_id = -1; +static int hf_sdl_reserved = -1; +static int hf_sdl_id = -1; +static int hf_registration_status = -1; +static int hf_deregistration_status = -1; + +/* Initialize the subtree pointers */ +static gint ett_m2ua = -1; +static gint ett_m2ua_parameter = -1; + +static dissector_handle_t mtp3_handle; + +static void +dissect_parameters(tvbuff_t *, packet_info *, proto_tree *, proto_tree *); + +#define ADD_PADDING(x) ((((x) + 3) >> 2) << 2) + +#define VERSION_LENGTH 1 +#define RESERVED_LENGTH 1 +#define MESSAGE_CLASS_LENGTH 1 +#define MESSAGE_TYPE_LENGTH 1 +#define MESSAGE_LENGTH_LENGTH 4 +#define COMMON_HEADER_LENGTH (VERSION_LENGTH + RESERVED_LENGTH + MESSAGE_CLASS_LENGTH + \ + MESSAGE_TYPE_LENGTH + MESSAGE_LENGTH_LENGTH) + +#define VERSION_OFFSET 0 +#define RESERVED_OFFSET (VERSION_OFFSET + VERSION_LENGTH) +#define MESSAGE_CLASS_OFFSET (RESERVED_OFFSET + RESERVED_LENGTH) +#define MESSAGE_TYPE_OFFSET (MESSAGE_CLASS_OFFSET + MESSAGE_CLASS_LENGTH) +#define MESSAGE_LENGTH_OFFSET (MESSAGE_TYPE_OFFSET + MESSAGE_TYPE_LENGTH) + +#define PROTOCOL_VERSION_RELEASE_1 1 + +static const value_string protocol_version_values[] = { + { PROTOCOL_VERSION_RELEASE_1, "Release 1" }, + { 0, NULL } }; + +#define MESSAGE_CLASS_MGMT_MESSAGE 0 +#define MESSAGE_CLASS_ASPSM_MESSAGE 3 +#define MESSAGE_CLASS_ASPTM_MESSAGE 4 +#define MESSAGE_CLASS_MAUP_MESSAGE 6 +#define MESSAGE_CLASS_IIM_MESSAGE 10 + +static const value_string message_class_values[] = { + { MESSAGE_CLASS_MGMT_MESSAGE, "Management messages" }, + { MESSAGE_CLASS_ASPSM_MESSAGE, "ASP state maintenance messages" }, + { MESSAGE_CLASS_ASPTM_MESSAGE, "ASP traffic maintenance messages" }, + { MESSAGE_CLASS_MAUP_MESSAGE, "MTP2 user adaptation messages" }, + { MESSAGE_CLASS_IIM_MESSAGE, "Interface identifier management messages" }, + { 0, NULL } }; + +/* MGMT */ +#define MESSAGE_TYPE_ERR 0 +#define MESSAGE_TYPE_NTFY 1 + +/* ASPSM */ +#define MESSAGE_TYPE_UP 1 +#define MESSAGE_TYPE_DOWN 2 +#define MESSAGE_TYPE_BEAT 3 +#define MESSAGE_TYPE_UP_ACK 4 +#define MESSAGE_TYPE_DOWN_ACK 5 +#define MESSAGE_TYPE_BEAT_ACK 6 + +/* ASPTM */ +#define MESSAGE_TYPE_ACTIVE 1 +#define MESSAGE_TYPE_INACTIVE 2 +#define MESSAGE_TYPE_ACTIVE_ACK 3 +#define MESSAGE_TYPE_INACTIVE_ACK 4 + +/* MAUP */ +#define MESSAGE_TYPE_DATA 1 +#define MESSAGE_TYPE_ESTAB_REQ 2 +#define MESSAGE_TYPE_ESTAB_CONF 3 +#define MESSAGE_TYPE_REL_REQ 4 +#define MESSAGE_TYPE_REL_CONF 5 +#define MESSAGE_TYPE_REL_IND 6 +#define MESSAGE_TYPE_STATE_REQ 7 +#define MESSAGE_TYPE_STATE_CONF 8 +#define MESSAGE_TYPE_STATE_IND 9 +#define MESSAGE_TYPE_DATA_RETR_REQ 10 +#define MESSAGE_TYPE_DATA_RETR_CONF 11 +#define MESSAGE_TYPE_DATA_RETR_IND 12 +#define MESSAGE_TYPE_DATA_RETR_COMP_IND 13 +#define MESSAGE_TYPE_CONG_IND 14 +#define MESSAGE_TYPE_DATA_ACK 15 + +/* IIM */ +#define MESSAGE_TYPE_REG_REQ 1 +#define MESSAGE_TYPE_REG_RSP 2 +#define MESSAGE_TYPE_DEREG_REQ 3 +#define MESSAGE_TYPE_DEREG_RSP 4 + +static const value_string message_class_type_values[] = { + { MESSAGE_CLASS_MGMT_MESSAGE * 256 + MESSAGE_TYPE_ERR, "Error (ERR)" }, + { MESSAGE_CLASS_MGMT_MESSAGE * 256 + MESSAGE_TYPE_NTFY, "Notify (NTFY)" }, + { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_UP, "ASP up (UP)" }, + { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_DOWN, "ASP down (DOWN)" }, + { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_BEAT, "Heartbeat (BEAT)" }, + { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_UP_ACK, "ASP up ack (UP ACK)" }, + { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_DOWN_ACK, "ASP down ack (DOWN ACK)" }, + { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_BEAT_ACK, "Heartbeat ack (BEAT ACK)" }, + { MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_ACTIVE , "ASP active (ACTIVE)" }, + { MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_INACTIVE , "ASP inactive (INACTIVE)" }, + { MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_ACTIVE_ACK , "ASP active ack (ACTIVE ACK)" }, + { MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_INACTIVE_ACK , "ASP inactive ack (INACTIVE ACK)" }, + { MESSAGE_CLASS_MAUP_MESSAGE * 256 + MESSAGE_TYPE_DATA, "DATA (DATA)" }, + { MESSAGE_CLASS_MAUP_MESSAGE * 256 + MESSAGE_TYPE_ESTAB_REQ, "Establish request (ESTAB_REQ)" }, + { MESSAGE_CLASS_MAUP_MESSAGE * 256 + MESSAGE_TYPE_ESTAB_CONF, "Establish confirm (ESTAB_CONF)" }, + { MESSAGE_CLASS_MAUP_MESSAGE * 256 + MESSAGE_TYPE_REL_REQ, "Release request (REL_REQ)" }, + { MESSAGE_CLASS_MAUP_MESSAGE * 256 + MESSAGE_TYPE_REL_CONF, "Release confirm (REL_CONF)" }, + { MESSAGE_CLASS_MAUP_MESSAGE * 256 + MESSAGE_TYPE_REL_IND, "Release indication (REL_IND)" }, + { MESSAGE_CLASS_MAUP_MESSAGE * 256 + MESSAGE_TYPE_STATE_REQ, "State request (STATE_REQ)" }, + { MESSAGE_CLASS_MAUP_MESSAGE * 256 + MESSAGE_TYPE_STATE_CONF, "State confirm (STATE_CONF)" }, + { MESSAGE_CLASS_MAUP_MESSAGE * 256 + MESSAGE_TYPE_STATE_IND, "State indication (STATE_IND)" }, + { MESSAGE_CLASS_MAUP_MESSAGE * 256 + MESSAGE_TYPE_DATA_RETR_REQ, "Data retrieval request (DATA_RETR_REQ)" }, + { MESSAGE_CLASS_MAUP_MESSAGE * 256 + MESSAGE_TYPE_DATA_RETR_CONF, "Data retrieval confirm (DATA_RETR_CONF)" }, + { MESSAGE_CLASS_MAUP_MESSAGE * 256 + MESSAGE_TYPE_DATA_RETR_IND, "Data retrieval indication (DATA_RETR_IND)" }, + { MESSAGE_CLASS_MAUP_MESSAGE * 256 + MESSAGE_TYPE_DATA_RETR_COMP_IND, "Data retrieval complete indication (DATA_RETR_COMP_IND)" }, + { MESSAGE_CLASS_MAUP_MESSAGE * 256 + MESSAGE_TYPE_CONG_IND, "Congestion indication (CONG_IND)" }, + { MESSAGE_CLASS_MAUP_MESSAGE * 256 + MESSAGE_TYPE_DATA_ACK, "Data acknowledge (DATA_ACK)" }, + { MESSAGE_CLASS_IIM_MESSAGE * 256 + MESSAGE_TYPE_REG_REQ , "Registration request (REG_REQ)" }, + { MESSAGE_CLASS_IIM_MESSAGE * 256 + MESSAGE_TYPE_REG_RSP , "Registration response (REG_RSP)" }, + { MESSAGE_CLASS_IIM_MESSAGE * 256 + MESSAGE_TYPE_DEREG_REQ , "Deregistration request (DEREG_REQ)" }, + { MESSAGE_CLASS_IIM_MESSAGE * 256 + MESSAGE_TYPE_DEREG_RSP , "Deregistration response (DEREG_RSP)" }, + { 0, NULL } }; + +static const value_string message_class_type_acro_values[] = { + { MESSAGE_CLASS_MGMT_MESSAGE * 256 + MESSAGE_TYPE_ERR, "ERR" }, + { MESSAGE_CLASS_MGMT_MESSAGE * 256 + MESSAGE_TYPE_NTFY, "NTFY" }, + { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_UP, "ASP_UP" }, + { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_DOWN, "ASP_DOWN" }, + { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_BEAT, "BEAT" }, + { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_UP_ACK, "ASP_UP_ACK" }, + { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_DOWN_ACK, "ASP_DOWN_ACK" }, + { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_BEAT_ACK, "BEAT_ACK" }, + { MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_ACTIVE , "ASP_ACTIVE" }, + { MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_INACTIVE , "ASP_INACTIVE" }, + { MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_ACTIVE_ACK , "ASP_ACTIVE_ACK" }, + { MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_INACTIVE_ACK , "ASP_INACTIVE_ACK" }, + { MESSAGE_CLASS_MAUP_MESSAGE * 256 + MESSAGE_TYPE_DATA, "DATA" }, + { MESSAGE_CLASS_MAUP_MESSAGE * 256 + MESSAGE_TYPE_ESTAB_REQ, "ESTAB_REQ" }, + { MESSAGE_CLASS_MAUP_MESSAGE * 256 + MESSAGE_TYPE_ESTAB_CONF, "ESTAB_CONF" }, + { MESSAGE_CLASS_MAUP_MESSAGE * 256 + MESSAGE_TYPE_REL_REQ, "REL_REQ" }, + { MESSAGE_CLASS_MAUP_MESSAGE * 256 + MESSAGE_TYPE_REL_CONF, "REL_CONF" }, + { MESSAGE_CLASS_MAUP_MESSAGE * 256 + MESSAGE_TYPE_REL_IND, "REL_IND" }, + { MESSAGE_CLASS_MAUP_MESSAGE * 256 + MESSAGE_TYPE_STATE_REQ, "STATE_REQ" }, + { MESSAGE_CLASS_MAUP_MESSAGE * 256 + MESSAGE_TYPE_STATE_CONF, "STATE_CONF" }, + { MESSAGE_CLASS_MAUP_MESSAGE * 256 + MESSAGE_TYPE_STATE_IND, "STATE_IND" }, + { MESSAGE_CLASS_MAUP_MESSAGE * 256 + MESSAGE_TYPE_DATA_RETR_REQ, "DATA_RETR_REQ" }, + { MESSAGE_CLASS_MAUP_MESSAGE * 256 + MESSAGE_TYPE_DATA_RETR_CONF, "DATA_RETR_CONF" }, + { MESSAGE_CLASS_MAUP_MESSAGE * 256 + MESSAGE_TYPE_DATA_RETR_IND, "DATA_RETR_IND" }, + { MESSAGE_CLASS_MAUP_MESSAGE * 256 + MESSAGE_TYPE_DATA_RETR_COMP_IND, "DATA_RETR_COMP_IND" }, + { MESSAGE_CLASS_MAUP_MESSAGE * 256 + MESSAGE_TYPE_CONG_IND, "CONG_IND" }, + { MESSAGE_CLASS_MAUP_MESSAGE * 256 + MESSAGE_TYPE_DATA_ACK, "DATA_ACK" }, + { MESSAGE_CLASS_IIM_MESSAGE * 256 + MESSAGE_TYPE_REG_REQ , "REG_REQ" }, + { MESSAGE_CLASS_IIM_MESSAGE * 256 + MESSAGE_TYPE_REG_RSP , "REG_RSP" }, + { MESSAGE_CLASS_IIM_MESSAGE * 256 + MESSAGE_TYPE_DEREG_REQ , "DEREG_REQ" }, + { MESSAGE_CLASS_IIM_MESSAGE * 256 + MESSAGE_TYPE_DEREG_RSP , "DEREG_RSP" }, + { 0, NULL } }; + +static void +dissect_common_header(tvbuff_t *common_header_tvb, packet_info *pinfo, proto_tree *m2ua_tree) +{ + guint8 message_class, message_type; + + /* Extract the common header */ + message_class = tvb_get_guint8(common_header_tvb, MESSAGE_CLASS_OFFSET); + message_type = tvb_get_guint8(common_header_tvb, MESSAGE_TYPE_OFFSET); + + if (check_col(pinfo->cinfo, COL_INFO)) + col_add_fstr(pinfo->cinfo, COL_INFO, "%s ", val_to_str(message_class * 256 + message_type, message_class_type_acro_values, "reserved")); + + if (m2ua_tree) { + /* add the components of the common header to the protocol tree */ + proto_tree_add_item(m2ua_tree, hf_version, common_header_tvb, VERSION_OFFSET, VERSION_LENGTH, NETWORK_BYTE_ORDER); + proto_tree_add_item(m2ua_tree, hf_reserved, common_header_tvb, RESERVED_OFFSET, RESERVED_LENGTH, NETWORK_BYTE_ORDER); + proto_tree_add_item(m2ua_tree, hf_message_class, common_header_tvb, MESSAGE_CLASS_OFFSET, MESSAGE_CLASS_LENGTH, NETWORK_BYTE_ORDER); + proto_tree_add_uint_format(m2ua_tree, hf_message_type, common_header_tvb, MESSAGE_TYPE_OFFSET, MESSAGE_TYPE_LENGTH, message_type, + "Message type: %s (%u)", + val_to_str(message_class * 256 + message_type, message_class_type_values, "reserved"), message_type); + proto_tree_add_item(m2ua_tree, hf_message_length, common_header_tvb, MESSAGE_LENGTH_OFFSET, MESSAGE_LENGTH_LENGTH, NETWORK_BYTE_ORDER); + } +} + +#define PARAMETER_TAG_LENGTH 2 +#define PARAMETER_LENGTH_LENGTH 2 +#define PARAMETER_HEADER_LENGTH (PARAMETER_TAG_LENGTH + PARAMETER_LENGTH_LENGTH) + +#define PARAMETER_TAG_OFFSET 0 +#define PARAMETER_LENGTH_OFFSET (PARAMETER_TAG_OFFSET + PARAMETER_TAG_LENGTH) +#define PARAMETER_VALUE_OFFSET (PARAMETER_LENGTH_OFFSET + PARAMETER_LENGTH_LENGTH) +#define PARAMETER_HEADER_OFFSET PARAMETER_TAG_OFFSET + + +#define INT_INTERFACE_ID_OFFSET PARAMETER_VALUE_OFFSET +#define INT_INTERFACE_ID_LENGTH 4 + +static void +dissect_interface_identifier_int_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item) +{ + proto_tree_add_item(parameter_tree, hf_interface_id_int, parameter_tvb, INT_INTERFACE_ID_OFFSET, INT_INTERFACE_ID_LENGTH, NETWORK_BYTE_ORDER); + proto_item_append_text(parameter_item, " (%d)", tvb_get_ntohl(parameter_tvb, INT_INTERFACE_ID_OFFSET)); +} + +#define TEXT_INTERFACE_ID_OFFSET PARAMETER_VALUE_OFFSET + +static void +dissect_interface_identifier_text_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item) +{ + guint16 interface_id_length; + + interface_id_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH; + + proto_tree_add_item(parameter_tree, hf_interface_id_text, parameter_tvb, TEXT_INTERFACE_ID_OFFSET, interface_id_length, NETWORK_BYTE_ORDER); + proto_item_append_text(parameter_item, " (%.*s)", interface_id_length, + (const char *)tvb_get_ptr(parameter_tvb, TEXT_INTERFACE_ID_OFFSET, interface_id_length)); +} + +#define INFO_STRING_OFFSET PARAMETER_VALUE_OFFSET + +static void +dissect_info_string_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item) +{ + guint16 info_string_length; + + info_string_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH; + proto_tree_add_item(parameter_tree, hf_info_string, parameter_tvb, INFO_STRING_OFFSET, info_string_length, NETWORK_BYTE_ORDER); + proto_item_append_text(parameter_item, " (%.*s)", info_string_length, + (const char *)tvb_get_ptr(parameter_tvb, INFO_STRING_OFFSET, info_string_length)); +} + +#define DIAGNOSTIC_INFO_OFFSET PARAMETER_VALUE_OFFSET + +static void +dissect_diagnostic_information_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item) +{ + guint16 diag_info_length; + + diag_info_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH; + proto_tree_add_item(parameter_tree, hf_diagnostic_information, parameter_tvb, DIAGNOSTIC_INFO_OFFSET, diag_info_length, NETWORK_BYTE_ORDER); + proto_item_append_text(parameter_item, " (%u byte%s)", diag_info_length, plurality(diag_info_length, "", "s")); +} + +#define START_LENGTH 4 +#define END_LENGTH 4 +#define INTERVAL_LENGTH (START_LENGTH + END_LENGTH) + +#define START_OFFSET 0 +#define END_OFFSET (START_OFFSET + START_LENGTH) + +static void +dissect_interface_identifier_range_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item) +{ + guint16 number_of_ranges, range_number; + gint offset; + + number_of_ranges = (tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH) / INTERVAL_LENGTH; + offset = PARAMETER_VALUE_OFFSET; + for(range_number = 1; range_number <= number_of_ranges; range_number++) { + proto_tree_add_item(parameter_tree, hf_interface_id_start, parameter_tvb, offset + START_OFFSET, START_LENGTH, NETWORK_BYTE_ORDER); + proto_tree_add_item(parameter_tree, hf_interface_id_stop, parameter_tvb, offset + END_OFFSET, END_LENGTH, NETWORK_BYTE_ORDER); + offset += INTERVAL_LENGTH; + }; + + proto_item_append_text(parameter_item, " (%u range%s)", number_of_ranges, plurality(number_of_ranges, "", "s")); +} + +#define HEARTBEAT_DATA_OFFSET PARAMETER_VALUE_OFFSET + +static void +dissect_heartbeat_data_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item) +{ + guint16 heartbeat_data_length; + + heartbeat_data_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH; + proto_tree_add_item(parameter_tree, hf_heartbeat_data, parameter_tvb, HEARTBEAT_DATA_OFFSET, heartbeat_data_length, NETWORK_BYTE_ORDER); + proto_item_append_text(parameter_item, " (%u byte%s)", heartbeat_data_length, plurality(heartbeat_data_length, "", "s")); +} + +#define OVER_RIDE_TYPE 1 +#define LOAD_SHARE_TYPE 2 +#define BROADCAST_TYPE 3 + +static const value_string traffic_mode_type_values[] = { + { OVER_RIDE_TYPE , "Override" }, + { LOAD_SHARE_TYPE, "Load-share" }, + { BROADCAST_TYPE, "Broadcast" }, + { 0, NULL } }; + +#define TRAFFIC_MODE_TYPE_LENGTH 4 +#define TRAFFIC_MODE_TYPE_OFFSET PARAMETER_VALUE_OFFSET + +static void +dissect_traffic_mode_type_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item) +{ + proto_tree_add_item(parameter_tree, hf_traffic_mode_type, parameter_tvb, TRAFFIC_MODE_TYPE_OFFSET, TRAFFIC_MODE_TYPE_LENGTH, NETWORK_BYTE_ORDER); + proto_item_append_text(parameter_item, " (%s)", + val_to_str(tvb_get_ntohl(parameter_tvb, TRAFFIC_MODE_TYPE_OFFSET), traffic_mode_type_values, "unknown")); +} + +#define INVALID_VERSION_ERROR_CODE 0x01 +#define INVALID_INTERFACE_IDENTIFIER_ERROR_CODE 0x02 +#define UNSUPPORTED_MESSAGE_CLASS_ERROR_CODE 0x03 +#define UNSUPPORTED_MESSAGE_TYPE_ERROR_CODE 0x04 +#define UNSUPPORTED_TRAFFIC_HANDLING_MODE_ERROR_CODE 0x05 +#define UNEXPECTED_MESSAGE_ERROR_CODE 0x06 +#define PROTOCOL_ERROR_ERROR_CODE 0x07 +#define UNSUPPORTED_INTERFACE_IDENTIFIER_TYPE_ERROR_CODE 0x08 +#define INVALID_STREAM_IDENTIFIER_ERROR_CODE 0x09 +#define REFUSED_ERROR_CODE 0x0d +#define ASP_IDENTIFIER_REQUIRED_ERROR_CODE 0x0e +#define INVALID_ASP_IDENTIFIER_ERROR_CODE 0x0f +#define ASP_ACTIVE_FOR_INTERFACE_IDENTIFIER_ERROR_CODE 0x10 +#define INVALID_PARAMETER_VALUE_ERROR_CODE 0x11 +#define PARAMETER_FIELD_ERROR_CODE 0x12 +#define UNEXPECTED_PARAMETER_ERROR_CODE 0x13 +#define MISSING_PARAMETER_ERROR_CODE 0x16 + +static const value_string error_code_values[] = { + { INVALID_VERSION_ERROR_CODE, "Invalid version" }, + { INVALID_INTERFACE_IDENTIFIER_ERROR_CODE, "Invalid interface identifier" }, + { UNSUPPORTED_MESSAGE_CLASS_ERROR_CODE, "Unsupported message class" }, + { UNSUPPORTED_MESSAGE_TYPE_ERROR_CODE, "Unsupported message type" }, + { UNSUPPORTED_TRAFFIC_HANDLING_MODE_ERROR_CODE, "Unsupported traffic handling mode" }, + { UNEXPECTED_MESSAGE_ERROR_CODE, "Unexpected message" }, + { PROTOCOL_ERROR_ERROR_CODE, "Protocol error" }, + { UNSUPPORTED_INTERFACE_IDENTIFIER_TYPE_ERROR_CODE, "Unsupported interface identifier type" }, + { INVALID_STREAM_IDENTIFIER_ERROR_CODE, "Invalid stream identifier" }, + { REFUSED_ERROR_CODE, "Refused - management blocking" }, + { ASP_IDENTIFIER_REQUIRED_ERROR_CODE, "ASP identifier required" }, + { INVALID_ASP_IDENTIFIER_ERROR_CODE, "Invalid ASP identifier" }, + { ASP_ACTIVE_FOR_INTERFACE_IDENTIFIER_ERROR_CODE, "ASP active for interface identifier" }, + { INVALID_PARAMETER_VALUE_ERROR_CODE, "Invalid parameter value" }, + { PARAMETER_FIELD_ERROR_CODE, "Parameter field error" }, + { UNEXPECTED_PARAMETER_ERROR_CODE, "Unexpected parameter" }, + { MISSING_PARAMETER_ERROR_CODE, "Missing parameter" }, + { 0, NULL } }; + +#define ERROR_CODE_LENGTH 4 +#define ERROR_CODE_OFFSET PARAMETER_VALUE_OFFSET + +static void +dissect_error_code_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item) +{ + proto_tree_add_item(parameter_tree, hf_error_code, parameter_tvb, ERROR_CODE_OFFSET, ERROR_CODE_LENGTH, NETWORK_BYTE_ORDER); + proto_item_append_text(parameter_item, " (%s)", + val_to_str(tvb_get_ntohl(parameter_tvb, ERROR_CODE_OFFSET), error_code_values, "unknown")); +} + +#define AS_STATE_CHANGE_TYPE 1 +#define OTHER_TYPE 2 + +static const value_string status_type_values[] = { + { AS_STATE_CHANGE_TYPE, "Application server state change" }, + { OTHER_TYPE, "Other" }, + { 0, NULL } }; + +#define RESERVED_INFO 1 +#define AS_INACTIVE_INFO 2 +#define AS_ACTIVE_INFO 3 +#define AS_PENDING_INFO 4 + +#define INSUFFICIENT_ASP_RES_INFO 1 +#define ALTERNATE_ASP_ACTIVE_INFO 2 +#define ASP_FAILURE_INFO 3 + +static const value_string status_type_id_values[] = { + { AS_STATE_CHANGE_TYPE * 256 * 256 + RESERVED_INFO, "Reserved" }, + { AS_STATE_CHANGE_TYPE * 256 * 256 + AS_INACTIVE_INFO, "Application server inactive" }, + { AS_STATE_CHANGE_TYPE * 256 * 256 + AS_ACTIVE_INFO, "Application server active" }, + { AS_STATE_CHANGE_TYPE * 256 * 256 + AS_PENDING_INFO, "Application server pending" }, + { OTHER_TYPE * 256 * 256 + INSUFFICIENT_ASP_RES_INFO, "Insufficient ASP resources active in AS" }, + { OTHER_TYPE * 256 * 256 + ALTERNATE_ASP_ACTIVE_INFO, "Alternate ASP active" }, + { OTHER_TYPE * 256 * 256 + ASP_FAILURE_INFO, "ASP Failure" }, + {0, NULL } }; + +#define STATUS_TYPE_LENGTH 2 +#define STATUS_IDENT_LENGTH 2 + +#define STATUS_TYPE_OFFSET PARAMETER_VALUE_OFFSET +#define STATUS_IDENT_OFFSET (STATUS_TYPE_OFFSET + STATUS_TYPE_LENGTH) + +static void +dissect_status_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item) +{ + guint16 status_type, status_id; + + status_type = tvb_get_ntohs(parameter_tvb, STATUS_TYPE_OFFSET); + status_id = tvb_get_ntohs(parameter_tvb, STATUS_IDENT_OFFSET); + + proto_tree_add_item(parameter_tree, hf_status_type, parameter_tvb, STATUS_TYPE_OFFSET, STATUS_TYPE_LENGTH, NETWORK_BYTE_ORDER); + proto_tree_add_uint_format(parameter_tree, hf_status_ident, parameter_tvb, STATUS_IDENT_OFFSET, STATUS_IDENT_LENGTH, + status_id, "Status identification: %u (%s)", status_id, + val_to_str(status_type * 256 * 256 + status_id, status_type_id_values, "unknown")); + + proto_item_append_text(parameter_item, " (%s)", + val_to_str(status_type * 256 * 256 + status_id, status_type_id_values, "unknown status information")); +} + +#define ASP_IDENTIFIER_OFFSET PARAMETER_VALUE_OFFSET +#define ASP_IDENTIFIER_LENGTH 4 + +static void +dissect_asp_identifier_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item) +{ + proto_tree_add_item(parameter_tree, hf_asp_id, parameter_tvb, ASP_IDENTIFIER_OFFSET, ASP_IDENTIFIER_LENGTH, NETWORK_BYTE_ORDER); + proto_item_append_text(parameter_item, " (%u)", tvb_get_ntohl(parameter_tvb, ASP_IDENTIFIER_OFFSET)); +} + +#define CORRELATION_ID_LENGTH 4 +#define CORRELATION_ID_OFFSET PARAMETER_VALUE_OFFSET + +static void +dissect_correlation_identifier_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item) +{ + proto_tree_add_item(parameter_tree, hf_correlation_id, parameter_tvb, CORRELATION_ID_OFFSET, CORRELATION_ID_LENGTH, NETWORK_BYTE_ORDER); + proto_item_append_text(parameter_item, " (%u)", tvb_get_ntohl(parameter_tvb, CORRELATION_ID_OFFSET)); +} + +#define DATA_1_MTP3_OFFSET PARAMETER_VALUE_OFFSET + +static void +dissect_protocol_data_1_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *tree, proto_item *parameter_item) +{ + tvbuff_t *payload_tvb; + guint32 payload_length; + + payload_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH; + + payload_tvb = tvb_new_subset(parameter_tvb, DATA_1_MTP3_OFFSET, payload_length, payload_length); + proto_item_set_len(parameter_item, PARAMETER_HEADER_LENGTH); + call_dissector(mtp3_handle, payload_tvb, pinfo, tree); + + proto_item_set_text(parameter_item, "Data 1 parameter"); +} + +#define DATA_2_LI_LENGTH 1 +#define DATA_2_LI_OFFSET PARAMETER_VALUE_OFFSET +#define DATA_2_MTP3_OFFSET (DATA_2_LI_OFFSET + DATA_2_LI_LENGTH) + +static void +dissect_protocol_data_2_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *tree, proto_tree *parameter_tree, proto_item *parameter_item) +{ + tvbuff_t *payload_tvb; + guint32 payload_length; + + payload_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH - DATA_2_LI_LENGTH; + + proto_tree_add_item(parameter_tree, hf_data_2_li, parameter_tvb, DATA_2_LI_OFFSET, DATA_2_LI_LENGTH, NETWORK_BYTE_ORDER); + payload_tvb = tvb_new_subset(parameter_tvb, DATA_2_MTP3_OFFSET, payload_length, payload_length); + proto_item_set_len(parameter_item, PARAMETER_HEADER_LENGTH + DATA_2_LI_LENGTH); + call_dissector(mtp3_handle, payload_tvb, pinfo, tree); +} + + +#define STATUS_LPO_SET 0x0 +#define STATUS_LPO_CLEAR 0x1 +#define STATUS_EMER_SET 0x2 +#define STATUS_EMER_CLEAR 0x3 +#define STATUS_FLUSH_BUFFERS 0x4 +#define STATUS_CONTINUE 0x5 +#define STATUS_CLEAR_RTB 0x6 +#define STATUS_AUDIT 0x7 +#define STATUS_CONG_CLEAR 0x8 +#define STATUS_CONG_ACCEPT 0x9 +#define STATUS_CONG_DISCARD 0xa + +static const value_string state_values[] = { + { STATUS_LPO_SET, "Request local processor outage" }, + { STATUS_LPO_CLEAR, "Request local processor outage recovered" }, + { STATUS_EMER_SET, "Request emergency alignment" }, + { STATUS_EMER_CLEAR, "Request normal alignment (cancel emergency)" }, + { STATUS_FLUSH_BUFFERS, "Flush or clear receive, transmit and retransmit queues" }, + { STATUS_CONTINUE, "Continue or Resume" }, + { STATUS_CLEAR_RTB, "Clear the retransmit queue" }, + { STATUS_AUDIT, "Audit state of link" }, + { STATUS_CONG_CLEAR, "Congestion cleared" }, + { STATUS_CONG_ACCEPT, "Congestion accept" }, + { STATUS_CONG_DISCARD, "Congestion discard" }, + {0, NULL } }; + +#define STATE_LENGTH 4 +#define STATE_OFFSET PARAMETER_VALUE_OFFSET + +static void +dissect_state_request_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item) +{ + proto_tree_add_item(parameter_tree, hf_state, parameter_tvb, STATE_OFFSET, STATE_LENGTH, NETWORK_BYTE_ORDER); + proto_item_append_text(parameter_item, " (%s)", val_to_str(tvb_get_ntohl(parameter_tvb, STATE_OFFSET), state_values, "unknown")); +} + +#define EVENT_RPO_ENTER 0x1 +#define EVENT_RPO_EXIT 0x2 +#define EVENT_LPO_ENTER 0x3 +#define EVENT_LPO_EXIT 0x4 + +static const value_string event_values[] = { + { EVENT_RPO_ENTER, "Remote entered processor outage" }, + { EVENT_RPO_EXIT, "Remote exited processor outage" }, + { EVENT_LPO_ENTER, "Link entered processor outage" }, + { EVENT_LPO_EXIT, "Link exited processor outage" }, + {0, NULL } }; + +#define EVENT_LENGTH 4 +#define EVENT_OFFSET PARAMETER_VALUE_OFFSET + +static void +dissect_state_event_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item) +{ + proto_tree_add_item(parameter_tree, hf_event, parameter_tvb, EVENT_OFFSET, EVENT_LENGTH, NETWORK_BYTE_ORDER); + proto_item_append_text(parameter_item, " (%s)", val_to_str(tvb_get_ntohl(parameter_tvb, STATE_OFFSET), event_values, "unknown")); +} + +#define LEVEL_NONE 0x0 +#define LEVEL_1 0x1 +#define LEVEL_2 0x2 +#define LEVEL_3 0x3 + +static const value_string level_values[] = { + { LEVEL_NONE, "No congestion" }, + { LEVEL_1, "Congestion Level 1" }, + { LEVEL_2, "Congestion Level 2" }, + { LEVEL_3, "Congestion Level 3" }, + {0, NULL } }; + +#define CONGESTION_STATUS_LENGTH 4 +#define CONGESTION_STATUS_OFFSET PARAMETER_VALUE_OFFSET + +static void +dissect_congestion_status_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item) +{ + proto_tree_add_item(parameter_tree, hf_congestion_status, parameter_tvb, CONGESTION_STATUS_OFFSET, CONGESTION_STATUS_LENGTH, NETWORK_BYTE_ORDER); + proto_item_append_text(parameter_item, " (%s)", val_to_str(tvb_get_ntohl(parameter_tvb, CONGESTION_STATUS_OFFSET), level_values, "unknown")); +} + +#define DISCARD_STATUS_LENGTH 4 +#define DISCARD_STATUS_OFFSET PARAMETER_VALUE_OFFSET + +static void +dissect_discard_status_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item) +{ + proto_tree_add_item(parameter_tree, hf_discard_status, parameter_tvb, DISCARD_STATUS_OFFSET, DISCARD_STATUS_LENGTH, NETWORK_BYTE_ORDER); + proto_item_append_text(parameter_item, " (%s)", val_to_str(tvb_get_ntohl(parameter_tvb, DISCARD_STATUS_OFFSET), level_values, "unknown")); +} + +#define ACTION_RTRV_BSN 0x1 +#define ACTION_RTRV_MSGS 0x2 + +static const value_string action_values[] = { + { ACTION_RTRV_BSN, "Retrieve the backward sequence number" }, + { ACTION_RTRV_MSGS, "Retrieve the PDUs from the transmit and retransmit queues" }, + {0, NULL } }; + + +#define ACTION_LENGTH 4 +#define ACTION_OFFSET PARAMETER_VALUE_OFFSET + +static void +dissect_action_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item) +{ + proto_tree_add_uint(parameter_tree, hf_action, parameter_tvb, ACTION_OFFSET, ACTION_LENGTH, NETWORK_BYTE_ORDER); + proto_item_append_text(parameter_item, " (%s)", val_to_str(tvb_get_ntohl(parameter_tvb, ACTION_OFFSET), action_values, "unknown")); +} + +#define SEQUENCE_NUMBER_LENGTH 4 +#define SEQUENCE_NUMBER_OFFSET PARAMETER_VALUE_OFFSET + +static void +dissect_sequence_number_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item) +{ + proto_tree_add_item(parameter_tree, hf_sequence_number, parameter_tvb, SEQUENCE_NUMBER_OFFSET, SEQUENCE_NUMBER_LENGTH, NETWORK_BYTE_ORDER); + proto_item_append_text(parameter_item, " (%u)", tvb_get_ntohl(parameter_tvb, SEQUENCE_NUMBER_OFFSET)); +} + +#define RESULT_SUCCESS 0x0 +#define RESULT_FAILURE 0x1 + +static const value_string retrieval_result_values[] = { + { RESULT_SUCCESS, "Action successful" }, + { RESULT_FAILURE , "Action failed" }, + { 0, NULL } }; + + +#define RETRIEVAL_RESULT_LENGTH 4 +#define RETRIEVAL_RESULT_OFFSET PARAMETER_VALUE_OFFSET + +static void +dissect_retrieval_result_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item) +{ + proto_tree_add_item(parameter_tree, hf_retrieval_result, parameter_tvb, RETRIEVAL_RESULT_OFFSET, RETRIEVAL_RESULT_LENGTH, NETWORK_BYTE_ORDER); + proto_item_append_text(parameter_item, " (%s)", val_to_str(tvb_get_ntohl(parameter_tvb, RETRIEVAL_RESULT_OFFSET), retrieval_result_values, "unknown")); +} + +static void +dissect_link_key_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *tree, proto_tree *parameter_tree) +{ + tvbuff_t *parameters_tvb; + guint16 parameters_length; + + parameters_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH; + parameters_tvb = tvb_new_subset(parameter_tvb, PARAMETER_VALUE_OFFSET, parameters_length, parameters_length); + dissect_parameters(parameters_tvb, pinfo, tree, parameter_tree); +} + +#define LOCAL_LK_ID_LENGTH 4 +#define LOCAL_LK_ID_OFFSET PARAMETER_VALUE_OFFSET + +static void +dissect_local_lk_identifier_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item) +{ + proto_tree_add_item(parameter_tree, hf_local_lk_id, parameter_tvb, LOCAL_LK_ID_OFFSET, LOCAL_LK_ID_LENGTH, NETWORK_BYTE_ORDER); + proto_item_append_text(parameter_item, " (%u)", tvb_get_ntohl(parameter_tvb, LOCAL_LK_ID_OFFSET)); +} + +#define SDT_RESERVED_LENGTH 2 +#define SDT_ID_LENGTH 2 +#define SDT_RESERVED_OFFSET PARAMETER_VALUE_OFFSET +#define SDT_ID_OFFSET (SDT_RESERVED_OFFSET + SDT_RESERVED_LENGTH) + +static void +dissect_sdt_identifier_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item) +{ + proto_tree_add_item(parameter_tree, hf_sdt_reserved, parameter_tvb, SDT_RESERVED_OFFSET, SDT_RESERVED_LENGTH, NETWORK_BYTE_ORDER); + proto_tree_add_item(parameter_tree, hf_sdt_id, parameter_tvb, SDT_ID_OFFSET, SDT_ID_LENGTH, NETWORK_BYTE_ORDER); + proto_item_append_text(parameter_item, " (%u)", tvb_get_ntohs(parameter_tvb, SDT_ID_OFFSET)); +} + +#define SDL_RESERVED_LENGTH 2 +#define SDL_ID_LENGTH 2 +#define SDL_RESERVED_OFFSET PARAMETER_VALUE_OFFSET +#define SDL_ID_OFFSET (SDL_RESERVED_OFFSET + SDL_RESERVED_LENGTH) + +static void +dissect_sdl_identifier_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item) +{ + proto_tree_add_item(parameter_tree, hf_sdl_reserved, parameter_tvb, SDL_RESERVED_OFFSET, SDL_RESERVED_LENGTH, NETWORK_BYTE_ORDER); + proto_tree_add_item(parameter_tree, hf_sdl_id, parameter_tvb, SDL_ID_OFFSET, SDL_ID_LENGTH, NETWORK_BYTE_ORDER); + proto_item_append_text(parameter_item, " (%u)", tvb_get_ntohs(parameter_tvb, SDL_ID_OFFSET)); +} + +static void +dissect_registration_result_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *tree, proto_tree *parameter_tree) +{ + tvbuff_t *parameters_tvb; + guint16 parameters_length; + + parameters_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH; + parameters_tvb = tvb_new_subset(parameter_tvb, PARAMETER_VALUE_OFFSET, parameters_length, parameters_length); + dissect_parameters(parameters_tvb, pinfo, tree, parameter_tree); +} + +#define SUCCESSFULL_REGISTRATION_STATUS 0 +#define UNKNOWN_REGISTRATION_STATUS 1 +#define INVALID_SDLI_REGISTRATION_STATUS 2 +#define INVALID_SDTI_REGISTRATION_STATUS 3 +#define INVALID_LINK_KEY_REGISTRATION_STATUS 4 +#define PERMISSION_DENIED_REGISTRATION_STATUS 5 +#define OVERLAPPING_LINK_KEY_REGISTRATION_STATUS 6 +#define LINK_KEY_NOT_PROVISIONED_REGISTRATION_STATUS 7 +#define INSUFFICIENT_RESOURCES_REGISTRATION_STATUS 8 + +static const value_string registration_status_values[] = { + { SUCCESSFULL_REGISTRATION_STATUS, "Successfully registered" }, + { UNKNOWN_REGISTRATION_STATUS, "Error - Unknown" }, + { INVALID_SDLI_REGISTRATION_STATUS, "Error - Invalid SDLI" }, + { INVALID_SDTI_REGISTRATION_STATUS, "Error - Invalid SDTI" }, + { INVALID_LINK_KEY_REGISTRATION_STATUS, "Error - Invalid link key" }, + { PERMISSION_DENIED_REGISTRATION_STATUS, "Error - Permission denied" }, + { OVERLAPPING_LINK_KEY_REGISTRATION_STATUS, "Error - Overlapping (Non-unique) link key" }, + { LINK_KEY_NOT_PROVISIONED_REGISTRATION_STATUS, "Error - Link key not provisioned" }, + { INSUFFICIENT_RESOURCES_REGISTRATION_STATUS, "Error - Insufficient resources" }, + { 0, NULL } }; + +#define REGISTRATION_STATUS_LENGTH 4 +#define REGISTRATION_STATUS_OFFSET PARAMETER_VALUE_OFFSET + +static void +dissect_registration_status_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item) +{ + proto_tree_add_item(parameter_tree, hf_registration_status, parameter_tvb, REGISTRATION_STATUS_OFFSET, REGISTRATION_STATUS_LENGTH, NETWORK_BYTE_ORDER); + proto_item_append_text(parameter_item, " (%s)", val_to_str(tvb_get_ntohl(parameter_tvb, REGISTRATION_STATUS_OFFSET), registration_status_values, "unknown")); +} + +static void +dissect_deregistration_result_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *tree, proto_tree *parameter_tree) +{ + tvbuff_t *parameters_tvb; + guint16 parameters_length; + + parameters_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH; + parameters_tvb = tvb_new_subset(parameter_tvb, PARAMETER_VALUE_OFFSET, parameters_length, parameters_length); + dissect_parameters(parameters_tvb, pinfo, tree, parameter_tree); +} + +#define SUCCESSFULL_DEREGISTRATION_STATUS 0 +#define UNKNOWN_DEREGISTRATION_STATUS 1 +#define INVALID_INTERFACE_IDENTIFIER_DEREGISTRATION_STATUS 2 +#define PERMISSION_DENIED_DEREGISTRATION_STATUS 3 +#define NOT_REGISTRED_DEREGISTRATION_STATUS 4 + +static const value_string deregistration_status_values[] = { + { SUCCESSFULL_DEREGISTRATION_STATUS, "Successfully deregistered" }, + { UNKNOWN_DEREGISTRATION_STATUS, "Error - Unknown" }, + { INVALID_INTERFACE_IDENTIFIER_DEREGISTRATION_STATUS, "Error - Invalid interface identifier" }, + { PERMISSION_DENIED_DEREGISTRATION_STATUS, "Error - Permission denied" }, + { NOT_REGISTRED_DEREGISTRATION_STATUS, "Error - Not registered" }, + { 0, NULL } }; + +#define DEREGISTRATION_STATUS_LENGTH 4 +#define DEREGISTRATION_STATUS_OFFSET PARAMETER_VALUE_OFFSET + +static void +dissect_deregistration_status_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item) +{ + proto_tree_add_item(parameter_tree, hf_deregistration_status, parameter_tvb, DEREGISTRATION_STATUS_OFFSET, DEREGISTRATION_STATUS_LENGTH, NETWORK_BYTE_ORDER); + proto_item_append_text(parameter_item, " (%s)", val_to_str(tvb_get_ntohl(parameter_tvb, DEREGISTRATION_STATUS_OFFSET), deregistration_status_values, "unknown")); +} + +static void +dissect_unknown_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item) +{ + guint16 parameter_value_length; + + parameter_value_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH; + if (parameter_value_length > 0) + proto_tree_add_item(parameter_tree, hf_parameter_value, parameter_tvb, PARAMETER_VALUE_OFFSET, parameter_value_length, NETWORK_BYTE_ORDER); + proto_item_append_text(parameter_item, " with tag %u and %u byte%s value", + tvb_get_ntohs(parameter_tvb, PARAMETER_TAG_OFFSET), parameter_value_length, plurality(parameter_value_length, "", "s")); +} + +/* Common parameter tags */ +#define INTERFACE_IDENTIFIER_INT_PARAMETER_TAG 0x0001 +#define INTERFACE_IDENTIFIER_TEXT_PARAMETER_TAG 0x0003 +#define INFO_STRING_PARAMETER_TAG 0x0004 +#define DIAGNOSTIC_INFORMATION_PARAMETER_TAG 0x0007 +#define INTERFACE_IDENTIFIER_RANGE_PARAMETER_TAG 0x0008 +#define HEARTBEAT_DATA_PARAMETER_TAG 0x0009 +#define TRAFFIC_MODE_TYPE_PARAMETER_TAG 0x000b +#define ERROR_CODE_PARAMETER_TAG 0x000c +#define STATUS_PARAMETER_TAG 0x000d +#define ASP_IDENTIFIER_PARAMETER_TAG 0x0011 +#define CORRELATION_IDENTIFIER_PARAMETER_TAG 0x0013 + +/* M2PA specific parameter tags */ +#define PROTOCOL_DATA_1_PARAMETER_TAG 0x0300 +#define PROTOCOL_DATA_2_PARAMETER_TAG 0x0301 +#define STATE_REQUEST_PARAMETER_TAG 0x0302 +#define STATE_EVENT_PARAMETER_TAG 0x0303 +#define CONGESTION_STATUS_PARAMETER_TAG 0x0304 +#define DISCARD_STATUS_PARAMETER_TAG 0x0305 +#define ACTION_PARAMETER_TAG 0x0306 +#define SEQUENCE_NUMBER_PARAMETER_TAG 0x0307 +#define RETRIEVAL_RESULT_PARAMETER_TAG 0x0308 +#define LINK_KEY_PARAMETER_TAG 0x0309 +#define LOCAL_LK_IDENTIFIER_PARAMETER_TAG 0x030a +#define SDT_IDENTIFIER_PARAMETER_TAG 0x030b +#define SDL_IDENTIFIER_PARAMETER_TAG 0x030c +#define REG_RESULT_PARAMETER_TAG 0x030d +#define REG_STATUS_PARAMETER_TAG 0x030e +#define DEREG_RESULT_PARAMETER_TAG 0x030f +#define DEREG_STATUS_PARAMETER_TAG 0x0310 + +static const value_string parameter_tag_values[] = { + { INTERFACE_IDENTIFIER_INT_PARAMETER_TAG, "Interface identifier (integer)" }, + { INTERFACE_IDENTIFIER_TEXT_PARAMETER_TAG, "Interface identifier (text)" }, + { INFO_STRING_PARAMETER_TAG, "Info string" }, + { DIAGNOSTIC_INFORMATION_PARAMETER_TAG, "Diagnostic information" }, + { INTERFACE_IDENTIFIER_RANGE_PARAMETER_TAG, "Interface identifier (integer range)" }, + { HEARTBEAT_DATA_PARAMETER_TAG, "Heartbeat data" }, + { TRAFFIC_MODE_TYPE_PARAMETER_TAG, "Traffic mode type" }, + { ERROR_CODE_PARAMETER_TAG, "Error code" }, + { STATUS_PARAMETER_TAG, "Status type / information" }, + { ASP_IDENTIFIER_PARAMETER_TAG, "ASP identifier" }, + { CORRELATION_IDENTIFIER_PARAMETER_TAG, "Correlation identifier" }, + { PROTOCOL_DATA_1_PARAMETER_TAG, "Protocol data 1" }, + { PROTOCOL_DATA_2_PARAMETER_TAG, "Protocol data 2" }, + { STATE_REQUEST_PARAMETER_TAG, "State request" }, + { STATE_EVENT_PARAMETER_TAG, "State event" }, + { CONGESTION_STATUS_PARAMETER_TAG, "Congestion state" }, + { DISCARD_STATUS_PARAMETER_TAG, "Discard state" }, + { ACTION_PARAMETER_TAG, "Action" }, + { SEQUENCE_NUMBER_PARAMETER_TAG, "Sequence number" }, + { RETRIEVAL_RESULT_PARAMETER_TAG, "Retrieval result" }, + { LINK_KEY_PARAMETER_TAG, "Link key" }, + { LOCAL_LK_IDENTIFIER_PARAMETER_TAG, "Local LK identifier" }, + { SDT_IDENTIFIER_PARAMETER_TAG, "SDT identifier" }, + { SDL_IDENTIFIER_PARAMETER_TAG, "SDL identifer" }, + { REG_RESULT_PARAMETER_TAG, "Registration result" }, + { REG_STATUS_PARAMETER_TAG, "Registration status" }, + { DEREG_RESULT_PARAMETER_TAG, "Deregistration result" }, + { DEREG_STATUS_PARAMETER_TAG, "Deregistration status" }, + { 0, NULL } }; + +/* + * Default preference for 'Protocol Data 1 Parameter Tag' is RFC3331 value + * defined above (PROTOCOL_DATA_1_PARAMETER_TAG) + * + * The other option is the old Draft 7 value defined below. + */ +#define PROTOCOL_DATA_1_DRAFT_7 0x000e +static guint protocol_data_1_global = PROTOCOL_DATA_1_PARAMETER_TAG; + +static void +dissect_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *tree, proto_tree *m2ua_tree) +{ + guint16 tag, length, padding_length; + proto_item *parameter_item; + proto_tree *parameter_tree; + + /* extract tag and length from the parameter */ + tag = tvb_get_ntohs(parameter_tvb, PARAMETER_TAG_OFFSET); + length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET); + + /* calculate padding and total length */ + padding_length = tvb_length(parameter_tvb) - length; + + /* create proto_tree stuff */ + parameter_item = proto_tree_add_text(m2ua_tree, parameter_tvb, PARAMETER_HEADER_OFFSET, tvb_length(parameter_tvb), + val_to_str(tag, parameter_tag_values, "Unknown parameter")); + parameter_tree = proto_item_add_subtree(parameter_item, ett_m2ua_parameter); + + if ((protocol_data_1_global == PROTOCOL_DATA_1_DRAFT_7) && + (tag == PROTOCOL_DATA_1_DRAFT_7)) + { + proto_tree_add_uint_hidden(parameter_tree, hf_parameter_tag, parameter_tvb, PARAMETER_TAG_OFFSET, PARAMETER_TAG_LENGTH, tag); + + /* add tag and length to the m2ua tree */ + proto_tree_add_text(parameter_tree, parameter_tvb, PARAMETER_TAG_OFFSET, PARAMETER_TAG_LENGTH, + "Parameter Tag: Protocol data 1 (0x000e)"); + + proto_tree_add_item(parameter_tree, hf_parameter_length, parameter_tvb, PARAMETER_LENGTH_OFFSET, PARAMETER_LENGTH_LENGTH, NETWORK_BYTE_ORDER); + tag = PROTOCOL_DATA_1_PARAMETER_TAG; + } + else + { + /* add tag and length to the m2ua tree */ + proto_tree_add_item(parameter_tree, hf_parameter_tag, parameter_tvb, PARAMETER_TAG_OFFSET, PARAMETER_TAG_LENGTH, NETWORK_BYTE_ORDER); + proto_tree_add_item(parameter_tree, hf_parameter_length, parameter_tvb, PARAMETER_LENGTH_OFFSET, PARAMETER_LENGTH_LENGTH, NETWORK_BYTE_ORDER); + } + + switch(tag) { + case INTERFACE_IDENTIFIER_INT_PARAMETER_TAG: + dissect_interface_identifier_int_parameter(parameter_tvb, parameter_tree, parameter_item); + break; + case INTERFACE_IDENTIFIER_TEXT_PARAMETER_TAG: + dissect_interface_identifier_text_parameter(parameter_tvb, parameter_tree, parameter_item); + break; + case INFO_STRING_PARAMETER_TAG: + dissect_info_string_parameter(parameter_tvb, parameter_tree, parameter_item); + break; + case DIAGNOSTIC_INFORMATION_PARAMETER_TAG: + dissect_diagnostic_information_parameter(parameter_tvb, parameter_tree, parameter_item); + break; + case INTERFACE_IDENTIFIER_RANGE_PARAMETER_TAG: + dissect_interface_identifier_range_parameter(parameter_tvb, parameter_tree, parameter_item); + break; + case HEARTBEAT_DATA_PARAMETER_TAG: + dissect_heartbeat_data_parameter(parameter_tvb, parameter_tree, parameter_item); + break; + case TRAFFIC_MODE_TYPE_PARAMETER_TAG: + dissect_traffic_mode_type_parameter(parameter_tvb, parameter_tree, parameter_item); + break; + case ERROR_CODE_PARAMETER_TAG: + dissect_error_code_parameter(parameter_tvb, parameter_tree, parameter_item); + break; + case STATUS_PARAMETER_TAG: + dissect_status_parameter(parameter_tvb, parameter_tree, parameter_item); + break; + case ASP_IDENTIFIER_PARAMETER_TAG: + dissect_asp_identifier_parameter(parameter_tvb, parameter_tree, parameter_item); + break; + case CORRELATION_IDENTIFIER_PARAMETER_TAG: + dissect_correlation_identifier_parameter(parameter_tvb, parameter_tree, parameter_item); + break; + case PROTOCOL_DATA_1_PARAMETER_TAG: + if (protocol_data_1_global == PROTOCOL_DATA_1_DRAFT_7) + { + tag = PROTOCOL_DATA_1_DRAFT_7; + } + dissect_protocol_data_1_parameter(parameter_tvb, pinfo, tree, parameter_item); + break; + case PROTOCOL_DATA_2_PARAMETER_TAG: + dissect_protocol_data_2_parameter(parameter_tvb, pinfo, tree, parameter_tree, parameter_item); + break; + case STATE_REQUEST_PARAMETER_TAG: + dissect_state_request_parameter(parameter_tvb, parameter_tree, parameter_item); + break; + case STATE_EVENT_PARAMETER_TAG: + dissect_state_event_parameter(parameter_tvb, parameter_tree, parameter_item); + break; + case CONGESTION_STATUS_PARAMETER_TAG: + dissect_congestion_status_parameter(parameter_tvb, parameter_tree, parameter_item); + break; + case DISCARD_STATUS_PARAMETER_TAG: + dissect_discard_status_parameter(parameter_tvb, parameter_tree, parameter_item); + break; + case ACTION_PARAMETER_TAG: + dissect_action_parameter(parameter_tvb, parameter_tree, parameter_item); + break; + case SEQUENCE_NUMBER_PARAMETER_TAG: + dissect_sequence_number_parameter(parameter_tvb, parameter_tree, parameter_item); + break; + case RETRIEVAL_RESULT_PARAMETER_TAG: + dissect_retrieval_result_parameter(parameter_tvb, parameter_tree, parameter_item); + break; + case LINK_KEY_PARAMETER_TAG: + dissect_link_key_parameter(parameter_tvb, pinfo, tree, parameter_tree); + break; + case LOCAL_LK_IDENTIFIER_PARAMETER_TAG: + dissect_local_lk_identifier_parameter(parameter_tvb, parameter_tree, parameter_item); + break; + case SDT_IDENTIFIER_PARAMETER_TAG: + dissect_sdt_identifier_parameter(parameter_tvb, parameter_tree, parameter_item); + break; + case SDL_IDENTIFIER_PARAMETER_TAG: + dissect_sdl_identifier_parameter(parameter_tvb, parameter_tree, parameter_item); + break; + case REG_RESULT_PARAMETER_TAG: + dissect_registration_result_parameter(parameter_tvb, pinfo, tree, parameter_tree); + break; + case REG_STATUS_PARAMETER_TAG: + dissect_registration_status_parameter(parameter_tvb, parameter_tree, parameter_item); + break; + case DEREG_RESULT_PARAMETER_TAG: + dissect_deregistration_result_parameter(parameter_tvb, pinfo, tree, parameter_tree); + break; + case DEREG_STATUS_PARAMETER_TAG: + dissect_deregistration_status_parameter(parameter_tvb, parameter_tree, parameter_item); + break; + default: + dissect_unknown_parameter(parameter_tvb, parameter_tree, parameter_item); + break; + }; + + if (padding_length > 0) + proto_tree_add_item(parameter_tree, hf_parameter_padding, parameter_tvb, PARAMETER_HEADER_OFFSET + length, padding_length, NETWORK_BYTE_ORDER); +} + + +static void +dissect_parameters(tvbuff_t *parameters_tvb, packet_info *pinfo, proto_tree *tree, proto_tree *m2ua_tree) +{ + gint offset, length, total_length, remaining_length; + tvbuff_t *parameter_tvb; + + offset = 0; + while((remaining_length = tvb_reported_length_remaining(parameters_tvb, offset))) { + length = tvb_get_ntohs(parameters_tvb, offset + PARAMETER_LENGTH_OFFSET); + total_length = ADD_PADDING(length); + if (remaining_length >= length) + total_length = MIN(total_length, remaining_length); + /* create a tvb for the parameter including the padding bytes */ + parameter_tvb = tvb_new_subset(parameters_tvb, offset, total_length, total_length); + dissect_parameter(parameter_tvb, pinfo, tree, m2ua_tree); + /* get rid of the handled parameter */ + offset += total_length; + } +} + + +static void +dissect_message(tvbuff_t *message_tvb, packet_info *pinfo, proto_tree *tree, proto_tree *m2ua_tree) +{ + tvbuff_t *common_header_tvb, *parameters_tvb; + + common_header_tvb = tvb_new_subset(message_tvb, 0, COMMON_HEADER_LENGTH, COMMON_HEADER_LENGTH); + parameters_tvb = tvb_new_subset(message_tvb, COMMON_HEADER_LENGTH, -1, -1); + dissect_common_header(common_header_tvb, pinfo, m2ua_tree); + dissect_parameters(parameters_tvb, pinfo, tree, m2ua_tree); +} + +static void +dissect_m2ua(tvbuff_t *message_tvb, packet_info *pinfo, proto_tree *tree) +{ + proto_item *m2ua_item; + proto_tree *m2ua_tree; + + /* make entry in the Protocol column on summary display */ + if (check_col(pinfo->cinfo, COL_PROTOCOL)) + col_set_str(pinfo->cinfo, COL_PROTOCOL, "M2UA"); + + /* In the interest of speed, if "tree" is NULL, don't do any work not + necessary to generate protocol tree items. */ + if (tree) { + /* create the m2ua protocol tree */ + m2ua_item = proto_tree_add_item(tree, proto_m2ua, message_tvb, 0, -1, FALSE); + m2ua_tree = proto_item_add_subtree(m2ua_item, ett_m2ua); + } else { + m2ua_tree = NULL; + }; + /* dissect the message */ + dissect_message(message_tvb, pinfo, tree, m2ua_tree); +} + +/* Register the protocol with Ethereal */ +void +proto_register_m2ua(void) +{ + + /* Setup list of header fields */ + static hf_register_info hf[] = { + { &hf_version, { "Version", "m2ua.version", FT_UINT8, BASE_DEC, VALS(protocol_version_values), 0x0, "", HFILL } }, + { &hf_reserved, { "Reserved", "m2ua.reserved", FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL } }, + { &hf_message_class, { "Message class", "m2ua.message_class", FT_UINT8, BASE_DEC, VALS(message_class_values), 0x0, "", HFILL } }, + { &hf_message_type, { "Message Type", "m2ua.message_type", FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL } }, + { &hf_message_length, { "Message length", "m2ua.message_length", FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL } }, + { &hf_parameter_tag, { "Parameter Tag", "m2ua.parameter_tag", FT_UINT16, BASE_HEX, VALS(parameter_tag_values), 0x0, "", HFILL } }, + { &hf_parameter_length, { "Parameter length", "m2ua.parameter_length", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL } }, + { &hf_parameter_value, { "Parameter value", "m2ua.parameter_value", FT_BYTES, BASE_NONE, NULL, 0x0, "", HFILL } }, + { &hf_parameter_padding, { "Padding", "m2ua.parameter_padding", FT_BYTES, BASE_NONE, NULL, 0x0, "", HFILL } }, + { &hf_interface_id_int, { "Interface Identifier (integer)", "m2ua.interface_identifier_int", FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL } }, + { &hf_interface_id_text, { "Interface identifier (text)", "m2ua.interface_identifier_text", FT_STRING, BASE_DEC, NULL, 0x0, "", HFILL } }, + { &hf_info_string, { "Info string", "m2ua.info_string", FT_STRING, BASE_DEC, NULL, 0x0, "", HFILL } }, + { &hf_diagnostic_information, { "Diagnostic information", "m2ua.diagnostic_information", FT_BYTES, BASE_NONE, NULL, 0x0, "", HFILL } }, + { &hf_interface_id_start, { "Interface Identifier (start)", "m2ua.interface_identifier_start", FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL } }, + { &hf_interface_id_stop, { "Interface Identifier (stop)", "m2ua.interface_identifier_stop", FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL } }, + { &hf_heartbeat_data, { "Heartbeat data", "m2ua.heartbeat_data", FT_BYTES, BASE_NONE, NULL, 0x0, "", HFILL } }, + { &hf_traffic_mode_type, { "Traffic mode Type", "m2ua.traffic_mode_type", FT_UINT32, BASE_DEC, VALS(traffic_mode_type_values), 0x0, "", HFILL } }, + { &hf_error_code, { "Error code", "m2ua.error_code", FT_UINT32, BASE_DEC, VALS(error_code_values), 0x0, "", HFILL } }, + { &hf_status_type, { "Status type", "m2ua.status_type", FT_UINT16, BASE_DEC, VALS(status_type_values), 0x0, "", HFILL } }, + { &hf_status_ident, { "Status info", "m2ua.status_info", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL } }, + { &hf_asp_id, { "ASP identifier", "m2ua.asp_identifier", FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL } }, + { &hf_correlation_id, { "Correlation identifier", "m2ua.correlation_identifier", FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL } }, + { &hf_data_2_li, { "Length indicator", "m2ua.data_2_li", FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL } }, + { &hf_state, { "State", "m2ua.state", FT_UINT32, BASE_DEC, VALS(state_values), 0x0, "", HFILL } }, + { &hf_event, { "Event", "m2ua.event", FT_UINT32, BASE_DEC, VALS(event_values), 0x0, "", HFILL } }, + { &hf_congestion_status, { "Congestion status", "m2ua.congestion_status", FT_UINT32, BASE_DEC, VALS(level_values), 0x0, "", HFILL } }, + { &hf_discard_status, { "Discard status", "m2ua.discard_status", FT_UINT32, BASE_DEC, VALS(level_values), 0x0, "", HFILL } }, + { &hf_action, { "Actions", "m2ua.action", FT_UINT32, BASE_DEC, VALS(action_values), 0x0, "", HFILL } }, + { &hf_sequence_number, { "Sequence number", "m2ua.sequence_number", FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL } }, + { &hf_retrieval_result, { "Retrieval result", "m2ua.retrieval_result", FT_UINT32, BASE_DEC, VALS(retrieval_result_values), 0x0, "", HFILL } }, + { &hf_local_lk_id, { "Local LK identifier", "m2ua.local_lk_identifier", FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL } }, + { &hf_sdt_reserved, { "Reserved", "m2ua.sdt_reserved", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL } }, + { &hf_sdt_id, { "SDT identifier", "m2ua.sdt_identifier", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL } }, + { &hf_sdl_reserved, { "Reserved", "m2ua.sdl_reserved", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL } }, + { &hf_sdl_id, { "SDL identifier", "m2ua.sdl_identifier", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL } }, + { &hf_registration_status, { "Registration status", "m2ua.registration_status", FT_UINT32, BASE_DEC, VALS(registration_status_values), 0x0, "", HFILL } }, + { &hf_deregistration_status, { "Deregistration status", "m2ua.deregistration_status", FT_UINT32, BASE_DEC, VALS(deregistration_status_values), 0x0, "", HFILL } }, + }; + + /* Setup protocol subtree array */ + static gint *ett[] = { + &ett_m2ua, + &ett_m2ua_parameter, + }; + + static enum_val_t protocol_data_1_options[] = { + { "draft-7", "0x000e (Draft 7)", PROTOCOL_DATA_1_DRAFT_7 }, + { "rfc3331", "0x0300 (RFC3331)", PROTOCOL_DATA_1_PARAMETER_TAG }, + { NULL, NULL, 0 } + }; + + module_t *m2ua_module; + + /* Register the protocol name and description */ + proto_m2ua = proto_register_protocol("MTP 2 User Adaptation Layer", "M2UA", "m2ua"); + + /* Required function calls to register the header fields and subtrees used */ + proto_register_field_array(proto_m2ua, hf, array_length(hf)); + proto_register_subtree_array(ett, array_length(ett)); + + m2ua_module = prefs_register_protocol(proto_m2ua, NULL); + + prefs_register_enum_preference(m2ua_module, + "protocol_data_1_tag", + "Protocol Data 1 Parameter Tag", + "The value of the parameter tag for protocol data 1", + &protocol_data_1_global, + protocol_data_1_options, + FALSE); +} + +void +proto_reg_handoff_m2ua(void) +{ + dissector_handle_t m2ua_handle; + + mtp3_handle = find_dissector("mtp3"); + m2ua_handle = create_dissector_handle(dissect_m2ua, proto_m2ua); + dissector_add("sctp.ppi", M2UA_PAYLOAD_PROTOCOL_ID, m2ua_handle); + dissector_add("sctp.port", SCTP_PORT_M2UA, m2ua_handle); +} |