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Code Pull Requests Releases Wiki Activity

M3UA (MTP3 User Adaptation layer) support, from Michael Tuexen. 

svn path=/trunk/; revision=2855
This commit is contained in:
Guy Harris 2001-01-10 09:25:13 +00:00
parent 039bd984c0
commit 47b04baac4
4 changed files with 979 additions and 3 deletions
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3
AUTHORS
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@ -362,7 +362,8 @@ Dug Song <dugsong@monkey.org> {
}
Michael Tuexen <Michael.Tuexen@icn.siemens.de> {
SCTP
SCTP support
M3UA support
}
Bruce Korb <bkorb@sco.com> {

3
Makefile.am
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@ -1,7 +1,7 @@
# Makefile.am
# Automake file for Ethereal
#
# $Id: Makefile.am,v 1.269 2001/01/10 09:07:35 guy Exp $
# $Id: Makefile.am,v 1.270 2001/01/10 09:25:13 guy Exp $
#
# Ethereal - Network traffic analyzer
# By Gerald Combs <gerald@zing.org>
@ -99,6 +99,7 @@ DISSECTOR_SOURCES = \
packet-ldp.c \
packet-llc.c \
packet-lpd.c \
packet-m3ua.c \
packet-mapi.c \
packet-mip.c \
packet-mount.c \

3
Makefile.nmake
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@ -1,7 +1,7 @@
## Makefile for building ethereal.exe with Microsoft C and nmake
## Use: nmake -f makefile.nmake
#
# $Id: Makefile.nmake,v 1.71 2001/01/07 22:08:31 guy Exp $
# $Id: Makefile.nmake,v 1.72 2001/01/10 09:25:13 guy Exp $
include config.nmake
@ -86,6 +86,7 @@ DISSECTOR_SOURCES = \
packet-ldp.c \
packet-llc.c \
packet-lpd.c \
packet-m3ua.c \
packet-mapi.c \
packet-mip.c \
packet-mount.c \

973
packet-m3ua.c Normal file
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@ -0,0 +1,973 @@
/* packet-m3ua.c
* Routines for MTP3 User Adaptation Layer dissection
* It is hopefully (needs testing) compilant to
* http://www.ietf.org/internet-drafts/draft-ietf-sigtran-m3ua-05.txt
* To do: - clean up the code
* - provide better handling of length parameters
* - provide good information in summary window
*
* Copyright 2000, Michael Tüxen <Michael.Tuexen@icn.siemens.de>
*
* $Id: packet-m3ua.c,v 1.1 2001/01/10 09:25:13 guy Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@unicom.net>
* 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 <stdio.h>
#include <stdlib.h>
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
#include <string.h>
#include <glib.h>
#ifdef NEED_SNPRINTF_H
# include "snprintf.h"
#endif
#include "packet.h"
#include "packet-ip.h"
#define SCTP_PORT_M3UA 2905
#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 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 NETWORK_APPEARANCE_PARAMETER_TAG 1
#define PROTOCOL_DATA_PARAMETER_TAG 3
#define INFO_PARAMETER_TAG 4
#define AFFECTED_DESTINATIONS_PARAMETER_TAG 5
#define ROUTING_CONTEXT_PARAMETER_TAG 6
#define DIAGNOSTIC_INFORMATION_PARAMETER_TAG 7
#define HEARTBEAT_DATA_PARAMETER_TAG 8
#define USER_CAUSE_PARAMETER_TAG 9
#define REASON_PARAMETER_TAG 10
#define TRAFFIC_MODE_TYPE_PARAMETER_TAG 11
#define ERROR_CODE_PARAMETER_TAG 12
#define STATUS_TYPE_PARAMETER_TAG 13
#define CONGESTION_INDICATION_PARAMETER_TAG 14
static const value_string m3ua_parameter_tag_values[] = {
{ NETWORK_APPEARANCE_PARAMETER_TAG, "Network appearance" },
{ PROTOCOL_DATA_PARAMETER_TAG, "Protocol data" },
{ INFO_PARAMETER_TAG, "Info" },
{ AFFECTED_DESTINATIONS_PARAMETER_TAG, "Affected destinations" },
{ ROUTING_CONTEXT_PARAMETER_TAG, "Routing context" },
{ DIAGNOSTIC_INFORMATION_PARAMETER_TAG, "Diagnostic information" },
{ HEARTBEAT_DATA_PARAMETER_TAG, "Heartbeat data" },
{ USER_CAUSE_PARAMETER_TAG, "User / Cause" },
{ REASON_PARAMETER_TAG, "Reason" },
{ TRAFFIC_MODE_TYPE_PARAMETER_TAG, "Traffic mode type" },
{ ERROR_CODE_PARAMETER_TAG, "Error code" },
{ STATUS_TYPE_PARAMETER_TAG, "Status type" },
{ CONGESTION_INDICATION_PARAMETER_TAG, "Congestion Indication" },
{ 0, NULL } };
#define PROTOCOL_VERSION_RELEASE_1 1
static const value_string m3ua_protocol_version_values[] = {
{ PROTOCOL_VERSION_RELEASE_1, "Release 1" },
{ 0, NULL } };
#define MESSAGE_CLASS_MGMT_MESSAGE 0
#define MESSAGE_CLASS_TFER_MESSAGE 1
#define MESSAGE_CLASS_SSNM_MESSAGE 2
#define MESSAGE_CLASS_ASPSM_MESSAGE 3
#define MESSAGE_CLASS_ASPTM_MESSAGE 4
static const value_string m3ua_message_class_values[] = {
{ MESSAGE_CLASS_MGMT_MESSAGE, "Management messages" },
{ MESSAGE_CLASS_TFER_MESSAGE, "Transfer messages" },
{ MESSAGE_CLASS_SSNM_MESSAGE, "SS7 signalling network management messages" },
{ MESSAGE_CLASS_ASPSM_MESSAGE, "ASP state maintenance messages" },
{ MESSAGE_CLASS_ASPTM_MESSAGE, "ASP traffic maintenance messages" },
{ 0, NULL } };
#define MESSAGE_TYPE_ERR 0
#define MESSAGE_TYPE_NTFY 1
#define MESSAGE_TYPE_DATA 1
#define MESSAGE_TYPE_DUNA 1
#define MESSAGE_TYPE_DAVA 2
#define MESSAGE_TYPE_DAUD 3
#define MESSAGE_TYPE_SCON 4
#define MESSAGE_TYPE_DUPU 5
#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
#define MESSAGE_TYPE_ACTIVE 1
#define MESSAGE_TYPE_INACTIVE 2
#define MESSAGE_TYPE_ACTIVE_ACK 3
#define MESSAGE_TYPE_INACTIVE_ACK 4
static const value_string m3ua_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_TFER_MESSAGE * 256 + MESSAGE_TYPE_DATA, "Payload data (DATA)" },
{ MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DUNA, "Destination unavailable (DUNA)" },
{ MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DAVA, "Destination available (DAVA)" },
{ MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DAUD, "Destination state audit (DAUD)" },
{ MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_SCON, "SS7 Network congestion state (SCON)" },
{ MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DUPU, "Destination userpart unavailable (DUPU)" },
{ 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)" },
{ 0, NULL } };
static const value_string m3ua_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_TFER_MESSAGE * 256 + MESSAGE_TYPE_DATA, "DATA" },
{ MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DUNA, "DUNA" },
{ MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DAVA, "DAVA" },
{ MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DAUD, "DAUD" },
{ MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_SCON, "SCON" },
{ MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DUPU, "DUPU" },
{ 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" },
{ 0, NULL } };
#define NETWORK_APPEARANCE_LENGTH 4
#define NETWORK_APPEARANCE_OFFSET PARAMETER_VALUE_OFFSET
#define PROTOCOL_DATA_OFFSET PARAMETER_VALUE_OFFSET
#define INFO_STRING_OFFSET PARAMETER_VALUE_OFFSET
#define INVALID_VERSION_ERROR_CODE 1
#define INVALID_NETWORK_APPEARANCE_ERROR_CODE 2
#define UNSUPPORTED_MESSAGE_TYPE_ERROR_CODE 3
#define INVALID_MESSAGE_TYPE_ERROR_CODE 4
#define INVALID_TRAFFIC_HANDLING_MODE_ERROR_CODE 5
#define UNEXPECTED_MESSAGE_ERROR_CODE 6
#define PROTOCOL_ERROR_ERROR_CODE 7
#define INVALID_ROUTING_CONTEXT_ERROR_CODE 8
static const value_string m3ua_error_code_values[] = {
{ INVALID_VERSION_ERROR_CODE, "Invalid version" },
{ INVALID_NETWORK_APPEARANCE_ERROR_CODE, "Invalid network appearance" },
{ UNSUPPORTED_MESSAGE_TYPE_ERROR_CODE, "Unsupported message type" },
{ INVALID_MESSAGE_TYPE_ERROR_CODE, "Invalid message type" },
{ INVALID_TRAFFIC_HANDLING_MODE_ERROR_CODE, "Invalid traffic handling mode" },
{ UNEXPECTED_MESSAGE_ERROR_CODE, "Unexpected message" },
{ PROTOCOL_ERROR_ERROR_CODE, "Protocol error" },
{ INVALID_ROUTING_CONTEXT_ERROR_CODE, "Invalid routing contexted" },
{ 0, NULL } };
#define ERROR_CODE_LENGTH 4
#define ERROR_CODE_OFFSET PARAMETER_VALUE_OFFSET
#define AS_STATE_CHANGE_TYPE 1
#define OTHER_TYPE 2
static const value_string m3ua_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
static const value_string m3ua_status_type_info_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" },
{0, NULL } };
#define STATUS_TYPE_LENGTH 2
#define STATUS_INFO_LENGTH 2
#define STATUS_TYPE_OFFSET PARAMETER_VALUE_OFFSET
#define STATUS_INFO_OFFSET (STATUS_TYPE_OFFSET + STATUS_TYPE_LENGTH)
#define UNKNOWN_UNAVAIL_CAUSE 0
#define UNEQUIPPED_REMOTE_USER_UNAVAIL_CAUSE 1
#define INACCESSABLE_REMOTE_USER_UNAVAIL_CAUSE 2
static const value_string m3ua_unavailability_cause_values[] = {
{ UNKNOWN_UNAVAIL_CAUSE, "Unknown" },
{ UNEQUIPPED_REMOTE_USER_UNAVAIL_CAUSE, "Unequipped remote user" },
{ INACCESSABLE_REMOTE_USER_UNAVAIL_CAUSE, "Inaccessable remote user" },
{0, NULL } };
#define RESERVED_0_USER_ID 0
#define RESERVED_1_USER_ID 1
#define RESERVED_2_USER_ID 2
#define SCCP_USER_ID 3
#define TUP_USER_ID 4
#define ISUP_USER_ID 5
#define RESERVED_6_USER_ID 6
#define RESERVED_7_USER_ID 7
#define RESERVED_8_USER_ID 8
#define BROADBAND_ISUP_USER_ID 9
#define SATELLITE_ISUP_USER_ID 10
static const value_string m3ua_user_identity_values[] = {
{ RESERVED_0_USER_ID, "Reserved" },
{ RESERVED_1_USER_ID, "Reserved" },
{ RESERVED_2_USER_ID, "Reserved" },
{ SCCP_USER_ID, "SCCP" },
{ TUP_USER_ID, "TUP" },
{ ISUP_USER_ID, "ISUP" },
{ RESERVED_6_USER_ID, "Reserved" },
{ RESERVED_7_USER_ID, "Reserved" },
{ RESERVED_8_USER_ID, "Reserved" },
{ BROADBAND_ISUP_USER_ID, "Broadband ISUP" },
{ SATELLITE_ISUP_USER_ID, "Satellite ISUP" },
{0, NULL } };
#define CAUSE_LENGTH 2
#define USER_LENGTH 2
#define CAUSE_OFFSET PARAMETER_VALUE_OFFSET
#define USER_OFFSET (CAUSE_OFFSET + CAUSE_LENGTH)
#define UNSPECIFIED_REASON 0
#define USER_UNAVAILABLE_REASON 1
#define MANAGEMENT_BLOCKING_REASON 2
static const value_string m3ua_reason_values[] = {
{ UNSPECIFIED_REASON, "Unspecified" },
{ USER_UNAVAILABLE_REASON, "User unavailable" },
{ MANAGEMENT_BLOCKING_REASON, "Management blocking" },
{0, NULL } };
#define REASON_LENGTH 4
#define REASON_OFFSET PARAMETER_VALUE_OFFSET
#define OVER_RIDE_TYPE 1
#define LOAD_SHARE_TYPE 2
#define OVER_RIDE_STANDBY_TYPE 3
#define LOAD_SHARE_STANDBY_TYPE 4
static const value_string m3ua_traffic_mode_type_values[] = {
{ OVER_RIDE_TYPE , "Over-ride" },
{ LOAD_SHARE_TYPE, "Load-share" },
{ OVER_RIDE_STANDBY_TYPE, "Over-ride (standby)" },
{ LOAD_SHARE_STANDBY_TYPE, "Load-share (standby)" },
{0, NULL } };
#define TRAFFIC_MODE_TYPE_LENGTH 4
#define TRAFFIC_MODE_TYPE_OFFSET PARAMETER_VALUE_OFFSET
#define ROUTING_CONTEXT_LENGTH 4
#define AFFECTED_DESTINATION_LENGTH 4
#define AFFECTED_MASK_LENGTH 1
#define AFFECTED_DPC_LENGTH 3
#define AFFECTED_MASK_OFFSET 0
#define AFFECTED_DPC_OFFSET (AFFECTED_MASK_OFFSET + AFFECTED_MASK_LENGTH)
#define NO_CONGESTION_LEVEL 0
#define CONGESTION_LEVEL_1_LEVEL 1
#define CONGESTION_LEVEL_2_LEVEL 2
#define CONGESTION_LEVEL_3_LEVEL 3
static const value_string m3ua_congestion_level_values[] = {
{ NO_CONGESTION_LEVEL, "No congestion or undefined" },
{ CONGESTION_LEVEL_1_LEVEL, "Congestion level 1" },
{ CONGESTION_LEVEL_2_LEVEL, "Congestion level 2" },
{ CONGESTION_LEVEL_3_LEVEL, "Congestion level 3" },
{0, NULL } };
#define CONG_IND_RESERVED_LENGTH 3
#define CONG_IND_LEVEL_LENGTH 1
#define CONG_IND_RESERVED_OFFSET PARAMETER_VALUE_OFFSET
#define CONG_IND_LEVEL_OFFSET (CONG_IND_RESERVED_OFFSET + CONG_IND_RESERVED_LENGTH)
/* Initialize the protocol and registered fields */
static int proto_m3ua = -1;
static int hf_m3ua_version = -1;
static int hf_m3ua_reserved = -1;
static int hf_m3ua_message_class = -1;
static int hf_m3ua_message_type = -1;
static int hf_m3ua_message_length = -1;
static int hf_m3ua_parameter_tag = -1;
static int hf_m3ua_parameter_length = -1;
static int hf_m3ua_network_appearance = -1;
static int hf_m3ua_info_string = -1;
static int hf_m3ua_error_code = -1;
static int hf_m3ua_status_type = -1;
static int hf_m3ua_status_info = -1;
static int hf_m3ua_unavailability_cause = -1;
static int hf_m3ua_user_identity = -1;
static int hf_m3ua_reason = -1;
static int hf_m3ua_traffic_mode_type = -1;
static int hf_m3ua_routing_context = -1;
static int hf_m3ua_mask = -1;
static int hf_m3ua_dpc = -1;
static int hf_m3ua_congestion_level = -1;
/* Initialize the subtree pointers */
static gint ett_m3ua = -1;
static gint ett_m3ua_parameter = -1;
static gint ett_m3ua_affected_destination = -1;
static guint
nr_of_padding_bytes (guint length)
{
guint remainder;
remainder = length % 4;
if (remainder == 0)
return 0;
else
return 4 - remainder;
}
static void
dissect_m3ua_common_header(tvbuff_t *common_header_tvb, packet_info *pinfo, proto_tree *m3ua_tree)
{
guint8 version, reserved, message_class, message_type;
guint32 message_length;
/* Extract the common header */
version = tvb_get_guint8(common_header_tvb, VERSION_OFFSET);
reserved = tvb_get_guint8(common_header_tvb, RESERVED_OFFSET);
message_class = tvb_get_guint8(common_header_tvb, MESSAGE_CLASS_OFFSET);
message_type = tvb_get_guint8(common_header_tvb, MESSAGE_TYPE_OFFSET);
message_length = tvb_get_ntohl (common_header_tvb, MESSAGE_LENGTH_OFFSET);
if (check_col(pinfo->fd, COL_INFO)) {
col_append_str(pinfo->fd, COL_INFO, val_to_str(message_class * 256 + message_type, m3ua_message_class_type_acro_values, "reserved"));
col_append_str(pinfo->fd, COL_INFO, " ");
};
/* add the components of the common header to the protocol tree */
proto_tree_add_uint_format(m3ua_tree, hf_m3ua_version,
common_header_tvb, VERSION_OFFSET, VERSION_LENGTH,
version, "Version: %u (%s)",
version, val_to_str(version, m3ua_protocol_version_values, "unknown"));
proto_tree_add_uint(m3ua_tree, hf_m3ua_reserved,
common_header_tvb, RESERVED_OFFSET, RESERVED_LENGTH,
reserved);
proto_tree_add_uint_format(m3ua_tree, hf_m3ua_message_class,
common_header_tvb, MESSAGE_CLASS_OFFSET, MESSAGE_CLASS_LENGTH,
message_class, "Message class: %u (%s)",
message_class, val_to_str(message_class, m3ua_message_class_values, "reserved"));
proto_tree_add_uint_format(m3ua_tree, hf_m3ua_message_type,
common_header_tvb, MESSAGE_TYPE_OFFSET, MESSAGE_TYPE_LENGTH,
message_type, "Message type: %u (%s)",
message_type, val_to_str(message_class * 256 + message_type, m3ua_message_class_type_values, "reserved"));
proto_tree_add_uint(m3ua_tree, hf_m3ua_message_length,
common_header_tvb, MESSAGE_LENGTH_OFFSET, MESSAGE_LENGTH_LENGTH,
message_length);
}
static void
dissect_m3ua_network_appearance_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
{
guint32 network_appearance;
network_appearance = tvb_get_ntohl(parameter_tvb, NETWORK_APPEARANCE_OFFSET);
proto_tree_add_uint(parameter_tree, hf_m3ua_network_appearance,
parameter_tvb, NETWORK_APPEARANCE_OFFSET, NETWORK_APPEARANCE_LENGTH,
network_appearance);
proto_item_set_text(parameter_item, "Network appearance: %u", network_appearance);
}
static void
dissect_m3ua_protocol_data_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
{
guint16 length, protocol_data_length;
length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET);
protocol_data_length = length - PARAMETER_HEADER_LENGTH;
proto_tree_add_text(parameter_tree, parameter_tvb, PROTOCOL_DATA_OFFSET, protocol_data_length,
"Protocol data (%u byte%s)",
protocol_data_length, plurality(protocol_data_length, "", "s"));
proto_item_set_text(parameter_item, "Protocol data (SS7 message of %u byte%s)",
protocol_data_length, plurality(protocol_data_length, "", "s"));
}
static void
dissect_m3ua_info_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
{
guint16 length, info_string_length;
char *info_string;
length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET);
info_string_length = length - PARAMETER_HEADER_LENGTH;
info_string = (char *)tvb_get_ptr(parameter_tvb, INFO_STRING_OFFSET, info_string_length);
proto_tree_add_string(parameter_tree, hf_m3ua_info_string,
parameter_tvb, INFO_STRING_OFFSET, info_string_length ,
info_string);
proto_item_set_text(parameter_item, "Info String (%s)", info_string);
}
static void
dissect_m3ua_affected_destinations_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
{
guint8 mask;
guint16 length, number_of_destinations, destination_number;
guint32 dpc;
gint destination_offset;
proto_item *destination_item;
proto_tree *destination_tree;
length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET);
number_of_destinations= (length - PARAMETER_HEADER_LENGTH) / 4;
destination_offset = PARAMETER_VALUE_OFFSET;
for(destination_number=1; destination_number <= number_of_destinations; destination_number++) {
mask = tvb_get_guint8(parameter_tvb, destination_offset + AFFECTED_MASK_OFFSET);
dpc = tvb_get_ntoh24(parameter_tvb, destination_offset + AFFECTED_DPC_OFFSET);
destination_item = proto_tree_add_text(parameter_tree, parameter_tvb, destination_offset, AFFECTED_DESTINATION_LENGTH,
"Affected destination");
destination_tree = proto_item_add_subtree(destination_item, ett_m3ua_affected_destination);
proto_tree_add_uint(destination_tree, hf_m3ua_mask,
parameter_tvb, destination_offset + AFFECTED_MASK_OFFSET, AFFECTED_MASK_LENGTH,
mask);
proto_tree_add_uint(destination_tree, hf_m3ua_dpc,
parameter_tvb, destination_offset + AFFECTED_DPC_OFFSET, AFFECTED_DPC_LENGTH,
dpc);
destination_offset += AFFECTED_DESTINATION_LENGTH;
};
proto_item_set_text(parameter_item, "Affected destinations parameter (%u destination%s)",
number_of_destinations, plurality(number_of_destinations, "", "s"));
}
static void
dissect_m3ua_routing_context_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
{
guint16 length, number_of_contexts, context_number;
guint32 context;
gint context_offset;
length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET);
number_of_contexts = (length - PARAMETER_HEADER_LENGTH) / 4;
context_offset = PARAMETER_VALUE_OFFSET;
for(context_number=1; context_number <= number_of_contexts; context_number++) {
context = tvb_get_ntohl(parameter_tvb, context_offset);
proto_tree_add_uint(parameter_tree, hf_m3ua_routing_context,
parameter_tvb, context_offset, ROUTING_CONTEXT_LENGTH,
context);
context_offset += ROUTING_CONTEXT_LENGTH;
};
proto_item_set_text(parameter_item, "Routing context parameter (%u context%s)",
number_of_contexts, plurality(number_of_contexts, "", "s"));
}
static void
dissect_m3ua_diagnostic_information_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
{
guint16 length, diagnostic_info_length;
length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET);
diagnostic_info_length = length - PARAMETER_HEADER_LENGTH;
proto_tree_add_text(parameter_tree, parameter_tvb, PARAMETER_VALUE_OFFSET, diagnostic_info_length,
"Diagnostic information (%u byte%s)",
diagnostic_info_length, plurality(diagnostic_info_length, "", "s"));
proto_item_set_text(parameter_item, "Diagnostic information (%u byte%s)",
diagnostic_info_length, plurality(diagnostic_info_length, "", "s"));
}
static void
dissect_m3ua_heartbeat_data_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
{
guint16 length, heartbeat_data_length;
length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET);
heartbeat_data_length = length - PARAMETER_HEADER_LENGTH;
proto_tree_add_text(parameter_tree, parameter_tvb, PARAMETER_VALUE_OFFSET, heartbeat_data_length,
"Heartbeat data (%u byte%s)",
heartbeat_data_length, plurality(heartbeat_data_length, "", "s"));
proto_item_set_text(parameter_item, "Heartbeat data (%u byte%s)",
heartbeat_data_length, plurality(heartbeat_data_length, "", "s"));
}
static void
dissect_m3ua_user_cause_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
{
guint16 cause, user;
cause = tvb_get_ntohs(parameter_tvb, CAUSE_OFFSET);
user = tvb_get_ntohs(parameter_tvb, USER_OFFSET);
proto_tree_add_uint_format(parameter_tree, hf_m3ua_unavailability_cause,
parameter_tvb, CAUSE_OFFSET, CAUSE_LENGTH,
cause, "Unavailability cause: %u (%s)",
cause, val_to_str(cause, m3ua_unavailability_cause_values, "unknown"));
proto_tree_add_uint_format(parameter_tree, hf_m3ua_user_identity,
parameter_tvb, USER_OFFSET, USER_LENGTH,
user, "User identity: %u (%s)",
user, val_to_str(user, m3ua_user_identity_values, "unknown"));
proto_item_set_text(parameter_item, "User / Cause parameter (%s: %s)",
val_to_str(user, m3ua_user_identity_values, "Unknown user"),
val_to_str(cause, m3ua_unavailability_cause_values, "unknown cause"));
}
static void
dissect_m3ua_reason_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
{
guint32 reason;
reason = tvb_get_ntohl(parameter_tvb, REASON_OFFSET);
proto_tree_add_uint_format(parameter_tree, hf_m3ua_reason,
parameter_tvb, REASON_OFFSET, REASON_LENGTH,
reason, "Reason: %u (%s)",
reason, val_to_str(reason, m3ua_reason_values, "unknown"));
proto_item_set_text(parameter_item, "Reason parameter (%s)",
val_to_str(reason, m3ua_reason_values, "unknown"));
}
static void
dissect_m3ua_traffic_mode_type_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
{
guint32 traffic_mode_type;
traffic_mode_type = tvb_get_ntohl(parameter_tvb, TRAFFIC_MODE_TYPE_OFFSET);
proto_tree_add_uint_format(parameter_tree, hf_m3ua_traffic_mode_type,
parameter_tvb, TRAFFIC_MODE_TYPE_OFFSET, TRAFFIC_MODE_TYPE_LENGTH,
traffic_mode_type, "Traffic mode type: %u (%s)",
traffic_mode_type, val_to_str(traffic_mode_type, m3ua_traffic_mode_type_values, "unknown"));
proto_item_set_text(parameter_item, "Traffic mode type parameter (%s)",
val_to_str(traffic_mode_type, m3ua_traffic_mode_type_values, "unknown"));
}
static void
dissect_m3ua_error_code_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
{
guint32 error_code;
error_code = tvb_get_ntohl(parameter_tvb, ERROR_CODE_OFFSET);
proto_tree_add_uint_format(parameter_tree, hf_m3ua_error_code,
parameter_tvb, ERROR_CODE_OFFSET, ERROR_CODE_LENGTH,
error_code, "Error code: %u (%s)",
error_code, val_to_str(error_code, m3ua_error_code_values, "unknown"));
proto_item_set_text(parameter_item, "Error code parameter (%s)",
val_to_str(error_code, m3ua_error_code_values, "unknown"));
}
static void
dissect_m3ua_status_type_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
{
guint16 status_type, status_info;
status_type = tvb_get_ntohs(parameter_tvb, STATUS_TYPE_OFFSET);
status_info = tvb_get_ntohs(parameter_tvb, STATUS_INFO_OFFSET);
proto_tree_add_uint_format(parameter_tree, hf_m3ua_status_type,
parameter_tvb, STATUS_TYPE_OFFSET, STATUS_TYPE_LENGTH,
status_type, "Status type: %u (%s)",
status_type, val_to_str(status_type, m3ua_status_type_values, "unknown"));
proto_tree_add_uint_format(parameter_tree, hf_m3ua_status_info,
parameter_tvb, STATUS_INFO_OFFSET, STATUS_INFO_LENGTH,
status_info, "Status info: %u (%s)",
status_info, val_to_str(status_type * 256 * 256 +
status_info, m3ua_status_type_info_values, "unknown"));
proto_item_set_text(parameter_item, "Status type / ID (%s)",
val_to_str(status_type * 256 * 256 +
status_info, m3ua_status_type_info_values, "unknown status information"));
}
static void
dissect_m3ua_congestion_indication_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
{
guint8 level;
level = tvb_get_guint8(parameter_tvb, CONG_IND_LEVEL_OFFSET);
proto_tree_add_text(parameter_tree, parameter_tvb, CONG_IND_RESERVED_OFFSET, CONG_IND_RESERVED_LENGTH,
"Reserved: %u byte%s",
CONG_IND_RESERVED_LENGTH, plurality(CONG_IND_RESERVED_LENGTH, "", "s"));
proto_tree_add_uint_format(parameter_tree, hf_m3ua_congestion_level,
parameter_tvb, CONG_IND_LEVEL_OFFSET, CONG_IND_LEVEL_LENGTH,
level, "Congestion level: %u (%s)",
level, val_to_str(level, m3ua_congestion_level_values, "unknown"));
proto_item_set_text(parameter_item, "Congestion indication (%s)",
val_to_str(level, m3ua_congestion_level_values, "unknown"));
}
static void
dissect_m3ua_unknown_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
{
guint16 tag, length, parameter_value_length;
tag = tvb_get_ntohs(parameter_tvb, PARAMETER_TAG_OFFSET);
length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET);
parameter_value_length = length - PARAMETER_HEADER_LENGTH;
proto_tree_add_text(parameter_tree, parameter_tvb, PARAMETER_VALUE_OFFSET, parameter_value_length,
"Parameter value (%u byte%s)",
parameter_value_length, plurality(parameter_value_length, "", "s"));
proto_item_set_text(parameter_item, "Parameter with tag %u and %u byte%s value",
tag, parameter_value_length, plurality(parameter_value_length, "", "s"));
}
static void
dissect_m3ua_parameter(tvbuff_t *parameter_tvb, proto_tree *m3ua_tree)
{
guint16 tag, length, padding_length, total_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 = nr_of_padding_bytes(length);
total_length = length + padding_length;
/* create proto_tree stuff */
parameter_item = proto_tree_add_text(m3ua_tree, parameter_tvb,
PARAMETER_HEADER_OFFSET, total_length, "Incomplete parameter");
parameter_tree = proto_item_add_subtree(parameter_item, ett_m3ua_parameter);
/* add tag and length to the m3ua tree */
proto_tree_add_uint_format(parameter_tree, hf_m3ua_parameter_tag,
parameter_tvb, PARAMETER_TAG_OFFSET, PARAMETER_TAG_LENGTH,
tag, "Identifier: %u (%s)",
tag, val_to_str(tag, m3ua_parameter_tag_values, "unknown"));
proto_tree_add_uint(parameter_tree, hf_m3ua_parameter_length,
parameter_tvb, PARAMETER_LENGTH_OFFSET, PARAMETER_LENGTH_LENGTH,
length);
switch(tag) {
case NETWORK_APPEARANCE_PARAMETER_TAG:
dissect_m3ua_network_appearance_parameter(parameter_tvb, parameter_tree, parameter_item);
break;
case PROTOCOL_DATA_PARAMETER_TAG:
dissect_m3ua_protocol_data_parameter(parameter_tvb, parameter_tree, parameter_item);
break;
case INFO_PARAMETER_TAG:
dissect_m3ua_info_parameter(parameter_tvb, parameter_tree, parameter_item);
break;
case AFFECTED_DESTINATIONS_PARAMETER_TAG:
dissect_m3ua_affected_destinations_parameter(parameter_tvb, parameter_tree, parameter_item);
break;
case ROUTING_CONTEXT_PARAMETER_TAG:
dissect_m3ua_routing_context_parameter(parameter_tvb, parameter_tree, parameter_item);
break;
case DIAGNOSTIC_INFORMATION_PARAMETER_TAG:
dissect_m3ua_diagnostic_information_parameter(parameter_tvb, parameter_tree, parameter_item);
break;
case HEARTBEAT_DATA_PARAMETER_TAG:
dissect_m3ua_heartbeat_data_parameter(parameter_tvb, parameter_tree, parameter_item);
break;
case USER_CAUSE_PARAMETER_TAG:
dissect_m3ua_user_cause_parameter(parameter_tvb, parameter_tree, parameter_item);
break;
case REASON_PARAMETER_TAG:
dissect_m3ua_reason_parameter(parameter_tvb, parameter_tree, parameter_item);
break;
case TRAFFIC_MODE_TYPE_PARAMETER_TAG:
dissect_m3ua_traffic_mode_type_parameter(parameter_tvb, parameter_tree, parameter_item);
break;
case ERROR_CODE_PARAMETER_TAG:
dissect_m3ua_error_code_parameter(parameter_tvb, parameter_tree, parameter_item);
break;
case STATUS_TYPE_PARAMETER_TAG:
dissect_m3ua_status_type_parameter(parameter_tvb, parameter_tree, parameter_item);
break;
case CONGESTION_INDICATION_PARAMETER_TAG:
dissect_m3ua_congestion_indication_parameter(parameter_tvb, parameter_tree, parameter_item);
break;
default:
dissect_m3ua_unknown_parameter(parameter_tvb, parameter_tree, parameter_item);
break;
};
if (padding_length > 0)
proto_tree_add_text(parameter_tree, parameter_tvb, PARAMETER_HEADER_OFFSET + length, padding_length,
"Padding: %u byte%s",
padding_length, plurality(padding_length, "", "s"));
}
static void
dissect_m3ua_message(tvbuff_t *message_tvb, packet_info *pinfo, proto_tree *m3ua_tree)
{
gint offset, length, padding_length, total_length;
tvbuff_t *common_header_tvb, *parameter_tvb;
offset = 0;
/* extract and process the common header */
common_header_tvb = tvb_new_subset(message_tvb, offset, COMMON_HEADER_LENGTH, COMMON_HEADER_LENGTH);
dissect_m3ua_common_header(common_header_tvb, pinfo, m3ua_tree);
offset += COMMON_HEADER_LENGTH;
/* extract zero or more parameters and process them individually */
while(tvb_length_remaining(message_tvb, offset)) {
length = tvb_get_ntohs(message_tvb, offset + PARAMETER_LENGTH_OFFSET);
padding_length = nr_of_padding_bytes(length);
total_length = length + padding_length;
/* create a tvb for the parameter including the padding bytes */
parameter_tvb = tvb_new_subset(message_tvb, offset, total_length, total_length);
dissect_m3ua_parameter(parameter_tvb, m3ua_tree);
/* get rid of the handled parameter */
offset += total_length;
}
}
static void
dissect_m3ua(tvbuff_t *message_tvb, packet_info *pinfo, proto_tree *tree)
{
proto_item *ti;
proto_tree *m3ua_tree;
CHECK_DISPLAY_AS_DATA(proto_m3ua, message_tvb, pinfo, tree);
pinfo->current_proto = "M3UA";
/* make entry in the Protocol column on summary display */
if (check_col(pinfo->fd, COL_PROTOCOL))
col_set_str(pinfo->fd, COL_PROTOCOL, "M3UA");
/* clear the Info column so that if we throw an exception it doesn't
show stuff from the protocol above us */
if (check_col(pinfo->fd, COL_INFO))
col_clear(pinfo->fd, COL_INFO);
/* 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 m3ua protocol tree */
ti = proto_tree_add_protocol_format(tree, proto_m3ua, message_tvb, 0, tvb_length(message_tvb),
"MTP 3 User Adaptation Layer");
m3ua_tree = proto_item_add_subtree(ti, ett_m3ua);
/* dissect the message */
dissect_m3ua_message(message_tvb, pinfo, m3ua_tree);
};
}
/* Register the protocol with Ethereal */
void
proto_register_m3ua(void)
{
/* Setup list of header fields */
static hf_register_info hf[] = {
{ &hf_m3ua_version,
{ "Version", "m3ua.version",
FT_UINT8, BASE_DEC, NULL, 0x0,
""}
},
{ &hf_m3ua_reserved,
{ "Reserved", "m3ua.reserved",
FT_UINT8, BASE_HEX, NULL, 0x0,
""}
},
{ &hf_m3ua_message_class,
{ "Message class", "m3ua.message_class",
FT_UINT8, BASE_DEC, NULL, 0x0,
""}
},
{ &hf_m3ua_message_type,
{ "Message Type", "m3ua.message_type",
FT_UINT8, BASE_DEC, NULL, 0x0,
""}
},
{ &hf_m3ua_message_length,
{ "Message length", "m3ua.message_length",
FT_UINT32, BASE_DEC, NULL, 0x0,
""}
},
{ &hf_m3ua_parameter_tag,
{ "Parameter Tag", "m3ua.parameter_tag",
FT_UINT16, BASE_DEC, NULL, 0x0,
""}
},
{ &hf_m3ua_parameter_length,
{ "Parameter length", "m3ua.parameter_length",
FT_UINT16, BASE_DEC, NULL, 0x0,
""}
},
{ &hf_m3ua_network_appearance,
{ "Network appearance", "m3ua.network_appearance",
FT_UINT32, BASE_DEC, NULL, 0x0,
""}
},
{ &hf_m3ua_info_string,
{ "Info string", "m3ua.info_string",
FT_STRING, BASE_DEC, NULL, 0x0,
""}
},
{ &hf_m3ua_error_code,
{ "Error code", "m3ua.error_code",
FT_UINT32, BASE_DEC, NULL, 0x0,
""}
},
{ &hf_m3ua_status_type,
{ "Status type", "m3ua.status_type",
FT_UINT16, BASE_DEC, NULL, 0x0,
""}
},
{ &hf_m3ua_status_info,
{ "Status info", "m3ua.status_info",
FT_UINT16, BASE_DEC, NULL, 0x0,
""}
},
{ &hf_m3ua_unavailability_cause,
{ "Unavailability cause", "m3ua.unavailability_cause",
FT_UINT16, BASE_DEC, NULL, 0x0,
""}
},
{ &hf_m3ua_user_identity,
{ "User Identity", "m3ua.user_identity",
FT_UINT16, BASE_DEC, NULL, 0x0,
""}
},
{ &hf_m3ua_reason,
{ "Reason", "m3ua.reason",
FT_UINT32, BASE_DEC, NULL, 0x0,
""}
},
{ &hf_m3ua_traffic_mode_type,
{ "Traffic mode Type", "m3ua.traffic_mode_type",
FT_UINT32, BASE_DEC, NULL, 0x0,
""}
},
{ &hf_m3ua_routing_context,
{ "Routing context", "m3ua.routing_context",
FT_UINT32, BASE_DEC, NULL, 0x0,
""}
},
{ &hf_m3ua_mask,
{ "Mask", "m3ua.mask",
FT_UINT8, BASE_DEC, NULL, 0x0,
""}
},
{ &hf_m3ua_dpc,
{ "Affected DPC", "m3ua.affected_dpc",
FT_UINT24, BASE_DEC, NULL, 0x0,
""}
},
{ &hf_m3ua_congestion_level,
{ "Congestion level", "m3ua.congestion_level",
FT_UINT8, BASE_DEC, NULL, 0x0,
""}
},
};
/* Setup protocol subtree array */
static gint *ett[] = {
&ett_m3ua,
&ett_m3ua_parameter,
&ett_m3ua_affected_destination,
};
/* Register the protocol name and description */
proto_m3ua = proto_register_protocol("MTP 3 User Adaptation Layer",
"M3UA", "m3ua");
/* Required function calls to register the header fields and subtrees used */
proto_register_field_array(proto_m3ua, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
};
void
proto_reg_handoff_m3ua(void)
{
dissector_add("sctp.port", SCTP_PORT_M3UA, dissect_m3ua, proto_m3ua);
}