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wireshark/epan/dissectors/packet-netperfmeter.c

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/* packet-netperfmeter.c
* Routines for the NetPerfMeter protocol used by the Open Source
* network performance meter application NetPerfMeter:
* https://www.uni-due.de/~be0001/netperfmeter/
*
* Copyright 2009-2021 by Thomas Dreibholz <dreibh [AT] iem.uni-due.de>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* Copied from README.developer
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "config.h"
#include <epan/packet.h>
#include <epan/sctpppids.h>
#include <epan/stat_tap_ui.h>
void proto_register_npm(void);
void proto_reg_handoff_npm(void);
static int proto_npm = -1;
static int tap_npm = -1;
static int ett_npm = -1;
static int ett_addflow_flags = -1;
static int ett_identifyflow_flags = -1;
static int ett_start_flags = -1;
static int ett_data_flags = -1;
static int ett_results_flags = -1;
static int ett_onoffarray = -1;
static guint64 npm_total_msgs = 0;
static guint64 npm_total_bytes = 0;
#define PPID_NETPERFMETER_CONTROL_LEGACY 0x29097605
#define PPID_NETPERFMETER_DATA_LEGACY 0x29097606
/* Initialize the protocol and registered fields */
#define NETPERFMETER_ACKNOWLEDGE 0x01
#define NETPERFMETER_ADD_FLOW 0x02
#define NETPERFMETER_REMOVE_FLOW 0x03
#define NETPERFMETER_IDENTIFY_FLOW 0x04
#define NETPERFMETER_DATA 0x05
#define NETPERFMETER_START 0x06
#define NETPERFMETER_STOP 0x07
#define NETPERFMETER_RESULTS 0x08
static const value_string message_type_values[] = {
{ NETPERFMETER_ACKNOWLEDGE, "NetPerfMeter Acknowledge" },
{ NETPERFMETER_ADD_FLOW, "NetPerfMeter Add Flow" },
{ NETPERFMETER_REMOVE_FLOW, "NetPerfMeter Remove Flow" },
{ NETPERFMETER_IDENTIFY_FLOW, "NetPerfMeter Identify Flow" },
{ NETPERFMETER_DATA, "NetPerfMeter Data" },
{ NETPERFMETER_START, "NetPerfMeter Start Measurement" },
{ NETPERFMETER_STOP, "NetPerfMeter Stop Measurement" },
{ NETPERFMETER_RESULTS, "NetPerfMeter Results" },
{ 0, NULL }
};
static int hf_message_type = -1;
static int hf_message_flags = -1;
static int hf_message_length = -1;
static int hf_acknowledge_flowid = -1;
static int hf_acknowledge_measurementid = -1;
static int hf_acknowledge_streamid = -1;
// static int hf_acknowledge_padding = -1;
static int hf_acknowledge_status = -1;
static int hf_addflow_flag_debug = -1;
static int hf_addflow_flag_nodelay = -1;
static int hf_addflow_flag_repeatonoff = -1;
static int hf_addflow_flowid = -1;
static int hf_addflow_measurementid = -1;
static int hf_addflow_streamid = -1;
static int hf_addflow_protocol = -1;
static int hf_addflow_flags = -1;
static int hf_addflow_description = -1;
static int hf_addflow_ordered = -1;
static int hf_addflow_reliable = -1;
static int hf_addflow_retranstrials = -1;
static int hf_addflow_framerate1 = -1;
static int hf_addflow_framerate2 = -1;
static int hf_addflow_framerate3 = -1;
static int hf_addflow_framerate4 = -1;
static int hf_addflow_framesize1 = -1;
static int hf_addflow_framesize2 = -1;
static int hf_addflow_framesize3 = -1;
static int hf_addflow_framesize4 = -1;
static int hf_addflow_frameraterng = -1;
static int hf_addflow_framesizerng = -1;
static int hf_addflow_rcvbuffersize = -1;
static int hf_addflow_sndbuffersize = -1;
static int hf_addflow_maxmsgsize = -1;
static int hf_addflow_cmt = -1;
static int hf_addflow_ccid = -1;
static int hf_addflow_onoffevents = -1;
static int hf_addflow_onoffeventarray = -1;
static int hf_removeflow_flowid = -1;
static int hf_removeflow_measurementid = -1;
static int hf_removeflow_streamid = -1;
static int hf_identifyflow_flag_compress_vectors = -1;
static int hf_identifyflow_flag_no_vectors = -1;
static int hf_identifyflow_flowid = -1;
static int hf_identifyflow_magicnumber = -1;
static int hf_identifyflow_measurementid = -1;
static int hf_identifyflow_streamid = -1;
#define NETPERFMETER_IDENTIFY_FLOW_MAGIC_NUMBER 0x4bcdf3aa303c6774ULL
static int hf_data_flag_frame_begin = -1;
static int hf_data_flag_frame_end = -1;
static int hf_data_flowid = -1;
static int hf_data_measurementid = -1;
static int hf_data_streamid = -1;
static int hf_data_padding = -1;
static int hf_data_frameid = -1;
static int hf_data_packetseqnumber = -1;
static int hf_data_byteseqnumber = -1;
static int hf_data_timestamp = -1;
static int hf_data_payload = -1;
static int hf_start_flag_compress_vectors = -1;
static int hf_start_flag_compress_scalars = -1;
static int hf_start_flag_no_vectors = -1;
static int hf_start_flag_no_scalars = -1;
// static int hf_start_padding = -1;
static int hf_start_measurementid = -1;
// static int hf_stop_padding = -1;
static int hf_stop_measurementid = -1;
static int hf_results_flag_eof = -1;
static int hf_results_data = -1;
/* Setup list of Transport Layer protocol types */
static const value_string proto_type_values[] = {
{ 6, "TCP" },
{ 8, "MPTCP" },
{ 17, "UDP" },
{ 33, "DCCP" },
{ 132, "SCTP" },
{ 0, NULL }
};
/* Setup list of CMT values */
static const value_string cmt_values[] = {
{ 0, "Off" },
{ 1, "CMT" },
{ 2, "CMT/RPv1" },
{ 3, "CMT/RPv2" },
{ 4, "MPTCP-Like" },
{ 0, NULL }
};
/* Setup list of random number generator types */
static const value_string rng_type_values[] = {
{ 0, "Constant" },
{ 1, "Uniform" },
{ 2, "Neg. Exponential" },
{ 0, NULL }
};
/* Message flags */
#define NPMAFF_DEBUG (1 << 0)
#define NPMAFF_NODELAY (1 << 1)
#define NPMAFF_REPEATONOFF (1 << 2)
#define NPMIF_COMPRESS_VECTORS (1 << 0)
#define NPMIF_NO_VECTORS (1 << 1)
#define NPMSF_COMPRESS_VECTORS (1 << 0)
#define NPMSF_COMPRESS_SCALARS (1 << 1)
#define NPMSF_NO_VECTORS (1 << 2)
#define NPMSF_NO_SCALARS (1 << 3)
#define NPMDF_FRAME_BEGIN (1 << 0)
#define NPMDF_FRAME_END (1 << 1)
#define NPMRF_EOF (1 << 0)
/* Setup list of header fields */
static hf_register_info hf[] = {
{ &hf_message_type, { "Type", "netperfmeter.message_type", FT_UINT8, BASE_DEC, VALS(message_type_values), 0x0, NULL, HFILL } },
{ &hf_message_flags, { "Flags", "netperfmeter.message_flags", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
{ &hf_message_length, { "Length", "netperfmeter.message_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } },
{ &hf_acknowledge_flowid, { "Flow ID", "netperfmeter.acknowledge_flowid", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL } },
{ &hf_acknowledge_measurementid, { "Measurement ID", "netperfmeter.acknowledge_measurementid", FT_UINT64, BASE_HEX, NULL, 0x0, NULL, HFILL } },
{ &hf_acknowledge_streamid, { "Stream ID", "netperfmeter.acknowledge_streamid", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } },
#if 0
{ &hf_acknowledge_padding, { "Padding", "netperfmeter.acknowledge_padding", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL } },
#endif
{ &hf_acknowledge_status, { "Status", "netperfmeter.acknowledge_status", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
{ &hf_addflow_flowid, { "Flow ID", "netperfmeter.addflow_flowid", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL } },
{ &hf_addflow_measurementid, { "Measurement ID", "netperfmeter.addflow_measurementid", FT_UINT64, BASE_HEX, NULL, 0x0, NULL, HFILL } },
{ &hf_addflow_streamid, { "Stream ID", "netperfmeter.addflow_streamid", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } },
{ &hf_addflow_protocol, { "Protocol", "netperfmeter.addflow_protocol", FT_UINT8, BASE_DEC, VALS(proto_type_values), 0x0, NULL, HFILL } },
{ &hf_addflow_flags, { "Flags", "netperfmeter.addflow_flags", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } },
{ &hf_addflow_description, { "Description", "netperfmeter.addflow_description", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } },
{ &hf_addflow_ordered, { "Ordered", "netperfmeter.addflow_ordered", FT_DOUBLE, BASE_NONE, NULL, 0x0, NULL, HFILL } },
{ &hf_addflow_reliable, { "Reliable", "netperfmeter.addflow_reliable", FT_DOUBLE, BASE_NONE, NULL, 0x0, NULL, HFILL } },
{ &hf_addflow_retranstrials, { "Retransmission Trials", "netperfmeter.addflow_retranstrials", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } },
{ &hf_addflow_frameraterng, { "Frame Rate RNG", "netperfmeter.addflow_frameraterng", FT_UINT8, BASE_DEC, VALS(rng_type_values), 0x0, NULL, HFILL } },
{ &hf_addflow_framerate1, { "Frame Rate 1", "netperfmeter.addflow_framerate1", FT_DOUBLE, BASE_NONE, NULL, 0x0, NULL, HFILL } },
{ &hf_addflow_framerate2, { "Frame Rate 2", "netperfmeter.addflow_framerate2", FT_DOUBLE, BASE_NONE, NULL, 0x0, NULL, HFILL } },
{ &hf_addflow_framerate3, { "Frame Rate 3", "netperfmeter.addflow_framerate3", FT_DOUBLE, BASE_NONE, NULL, 0x0, NULL, HFILL } },
{ &hf_addflow_framerate4, { "Frame Rate 4", "netperfmeter.addflow_framerate4", FT_DOUBLE, BASE_NONE, NULL, 0x0, NULL, HFILL } },
{ &hf_addflow_framesizerng, { "Frame Size RNG", "netperfmeter.addflow_framesizerng", FT_UINT8, BASE_DEC, VALS(rng_type_values), 0x0, NULL, HFILL } },
{ &hf_addflow_framesize1, { "Frame Size 1", "netperfmeter.addflow_framesize1", FT_DOUBLE, BASE_NONE, NULL, 0x0, NULL, HFILL } },
{ &hf_addflow_framesize2, { "Frame Size 2", "netperfmeter.addflow_framesize2", FT_DOUBLE, BASE_NONE, NULL, 0x0, NULL, HFILL } },
{ &hf_addflow_framesize3, { "Frame Size 3", "netperfmeter.addflow_framesize3", FT_DOUBLE, BASE_NONE, NULL, 0x0, NULL, HFILL } },
{ &hf_addflow_framesize4, { "Frame Size 4", "netperfmeter.addflow_framesize4", FT_DOUBLE, BASE_NONE, NULL, 0x0, NULL, HFILL } },
{ &hf_addflow_rcvbuffersize, { "Receive Buffer Size", "netperfmeter.addflow_rcvbuffersize", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
{ &hf_addflow_sndbuffersize, { "Send Buffer Size", "netperfmeter.addflow_sndbuffersize", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
{ &hf_addflow_maxmsgsize, { "Max. Message Size", "netperfmeter.addflow_maxmsgsize", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } },
{ &hf_addflow_cmt, { "CMT", "netperfmeter.addflow_cmt", FT_UINT8, BASE_HEX, VALS(cmt_values), 0x0, NULL, HFILL } },
{ &hf_addflow_ccid, { "CCID", "netperfmeter.addflow_ccid", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } },
{ &hf_addflow_onoffevents, { "On/Off Events", "netperfmeter.addflow_onoffevents", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } },
{ &hf_addflow_onoffeventarray, { "On/Off Event", "netperfmeter.addflow_onoffeventarray", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
{ &hf_addflow_flag_debug, { "Debug", "netperfmeter.addflow_flags.debug", FT_BOOLEAN, 8, TFS(&tfs_set_notset), NPMAFF_DEBUG, NULL, HFILL } },
{ &hf_addflow_flag_nodelay, { "No Delay", "netperfmeter.addflow_flags.nodelay", FT_BOOLEAN, 8, TFS(&tfs_set_notset), NPMAFF_NODELAY, NULL, HFILL } },
{ &hf_addflow_flag_repeatonoff, { "Repeat On/Off", "netperfmeter.addflow_flags.repeatonoff", FT_BOOLEAN, 8, TFS(&tfs_set_notset), NPMAFF_REPEATONOFF, NULL, HFILL } },
{ &hf_removeflow_flowid, { "Flow ID", "netperfmeter.removeflow_flowid", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL } },
{ &hf_removeflow_measurementid, { "Measurement ID", "netperfmeter.removeflow_measurementid", FT_UINT64, BASE_HEX, NULL, 0x0, NULL, HFILL } },
{ &hf_removeflow_streamid, { "Stream ID", "netperfmeter.removeflow_streamid", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } },
{ &hf_identifyflow_flowid, { "Flow ID", "netperfmeter.identifyflow_flowid", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL } },
{ &hf_identifyflow_magicnumber, { "Magic Number", "netperfmeter.identifyflow_magicnumber", FT_UINT64, BASE_HEX, NULL, 0x0, NULL, HFILL } },
{ &hf_identifyflow_measurementid, { "Measurement ID", "netperfmeter.identifyflow_measurementid", FT_UINT64, BASE_HEX, NULL, 0x0, NULL, HFILL } },
{ &hf_identifyflow_streamid, { "Stream ID", "netperfmeter.identifyflow_streamid", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } },
{ &hf_identifyflow_flag_compress_vectors, { "Compress Vectors", "netperfmeter.dentifyflow_flags.compress_vectors", FT_BOOLEAN, 8, TFS(&tfs_set_notset), NPMIF_COMPRESS_VECTORS, NULL, HFILL } },
{ &hf_identifyflow_flag_no_vectors, { "No Vectors", "netperfmeter.dentifyflow_flags.no_vectors", FT_BOOLEAN, 8, TFS(&tfs_set_notset), NPMIF_NO_VECTORS, NULL, HFILL } },
{ &hf_data_flowid, { "Flow ID", "netperfmeter.data_flowid", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL } },
{ &hf_data_measurementid, { "Measurement ID", "netperfmeter.data_measurementid", FT_UINT64, BASE_HEX, NULL, 0x0, NULL, HFILL } },
{ &hf_data_streamid, { "Stream ID", "netperfmeter.data_streamid", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } },
{ &hf_data_padding, { "Padding", "netperfmeter.data_padding", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL } },
{ &hf_data_frameid, { "Frame ID", "netperfmeter.data_frameid", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
{ &hf_data_packetseqnumber, { "Packet Seq Number", "netperfmeter.data_packetseqnumber", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL } },
{ &hf_data_byteseqnumber, { "Byte Seq Number", "netperfmeter.data_byteseqnumber", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL } },
{ &hf_data_timestamp, { "Time Stamp", "netperfmeter.data_timestamp", FT_ABSOLUTE_TIME, ABSOLUTE_TIME_UTC, NULL, 0x0, NULL, HFILL } },
{ &hf_data_payload, { "Payload", "netperfmeter.data_payload", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
{ &hf_data_flag_frame_begin, { "Begin of Frame", "netperfmeter.data_flags.frame_begin", FT_BOOLEAN, 8, TFS(&tfs_set_notset), NPMDF_FRAME_BEGIN, NULL, HFILL } },
{ &hf_data_flag_frame_end, { "End of Frame", "netperfmeter.data_flags.frame_end", FT_BOOLEAN, 8, TFS(&tfs_set_notset), NPMDF_FRAME_END, NULL, HFILL } },
#if 0
{ &hf_start_padding, { "Padding", "netperfmeter.start_padding", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL } },
#endif
{ &hf_start_measurementid, { "Measurement ID", "netperfmeter.start_measurementid", FT_UINT64, BASE_HEX, NULL, 0x0, NULL, HFILL } },
{ &hf_start_flag_compress_vectors,{ "Compress Vectors", "netperfmeter.start_flags.compress_vectors", FT_BOOLEAN, 8, TFS(&tfs_set_notset), NPMSF_COMPRESS_VECTORS, NULL, HFILL } },
{ &hf_start_flag_compress_scalars,{ "Compress Scalars", "netperfmeter.start_flags.compress_scalars", FT_BOOLEAN, 8, TFS(&tfs_set_notset), NPMSF_COMPRESS_SCALARS, NULL, HFILL } },
{ &hf_start_flag_no_vectors, { "No Vectors", "netperfmeter.start_flags.no_vectors", FT_BOOLEAN, 8, TFS(&tfs_set_notset), NPMSF_NO_VECTORS, NULL, HFILL } },
{ &hf_start_flag_no_scalars, { "No Scalars", "netperfmeter.start_flags.no_scalars", FT_BOOLEAN, 8, TFS(&tfs_set_notset), NPMSF_NO_SCALARS, NULL, HFILL } },
#if 0
{ &hf_stop_padding, { "Padding", "netperfmeter.stop_padding", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL } },
#endif
{ &hf_stop_measurementid, { "Measurement ID", "netperfmeter.stop_measurementid", FT_UINT64, BASE_HEX, NULL, 0x0, NULL, HFILL } },
{ &hf_results_data, { "Data", "netperfmeter.results_data", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
{ &hf_results_flag_eof, { "End of File", "netperfmeter.results_flags.eof", FT_BOOLEAN, 8, TFS(&tfs_set_notset), NPMRF_EOF, NULL, HFILL } }
};
typedef struct _tap_npm_rec_t {
guint8 type;
guint16 size;
const char* type_string;
} tap_npm_rec_t;
static void
dissect_npm_acknowledge_message(tvbuff_t *message_tvb, proto_tree *message_tree)
{
proto_tree_add_item(message_tree, hf_acknowledge_flowid, message_tvb, 4, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_acknowledge_measurementid, message_tvb, 8, 8, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_acknowledge_streamid, message_tvb, 16, 2, ENC_BIG_ENDIAN);
/* proto_tree_add_item(message_tree, acknowledge_padding, message_tvb, 18, 2, ENC_BIG_ENDIAN); */
proto_tree_add_item(message_tree, hf_acknowledge_status, message_tvb, 20, 4, ENC_BIG_ENDIAN);
}
static void
dissect_npm_add_flow_message(tvbuff_t *message_tvb, proto_tree *message_tree, proto_item *flags_item)
{
guint32 retranstrials;
proto_item* onoffitem;
proto_tree* onofftree;
proto_tree* flags_tree;
guint16 onoffevents;
guint32 onoffvalue;
unsigned int i;
flags_tree = proto_item_add_subtree(flags_item, ett_addflow_flags);
proto_tree_add_item(flags_tree, hf_addflow_flag_debug, message_tvb, 1, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flags_tree, hf_addflow_flag_nodelay, message_tvb, 1, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flags_tree, hf_addflow_flag_repeatonoff, message_tvb, 1, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_addflow_flowid, message_tvb, 4, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_addflow_measurementid, message_tvb, 8, 8, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_addflow_streamid, message_tvb, 16, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_addflow_protocol, message_tvb, 18, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_addflow_flags, message_tvb, 19, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_addflow_description, message_tvb, 20, 32, ENC_UTF_8|ENC_NA);
proto_tree_add_double_format_value(message_tree, hf_addflow_ordered, message_tvb, 52, 4,
100.0 * tvb_get_ntohl(message_tvb, 52) / (double)0xffffffff, "%1.3f%%",
100.0 * tvb_get_ntohl(message_tvb, 52) / (double)0xffffffff);
proto_tree_add_double_format_value(message_tree, hf_addflow_reliable, message_tvb, 56, 4,
100.0 * tvb_get_ntohl(message_tvb, 56) / (double)0xffffffff, "%1.3f%%",
100.0 * tvb_get_ntohl(message_tvb, 56) / (double)0xffffffff);
retranstrials = tvb_get_ntohl(message_tvb, 60);
proto_tree_add_uint_format_value(message_tree, hf_addflow_retranstrials, message_tvb, 60, 4,
retranstrials, (retranstrials & (1U << 31)) ? "%u ms" : "%u trials",
retranstrials &~ (1U << 31));
proto_tree_add_item(message_tree, hf_addflow_frameraterng, message_tvb, 128, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_addflow_framerate1, message_tvb, 64, 8, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_addflow_framerate2, message_tvb, 72, 8, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_addflow_framerate3, message_tvb, 80, 8, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_addflow_framerate4, message_tvb, 88, 8, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_addflow_framesizerng, message_tvb, 129, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_addflow_framesize1, message_tvb, 96, 8, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_addflow_framesize2, message_tvb, 104, 8, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_addflow_framesize3, message_tvb, 112, 8, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_addflow_framesize4, message_tvb, 120, 8, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_addflow_rcvbuffersize, message_tvb, 130, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_addflow_sndbuffersize, message_tvb, 134, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_addflow_maxmsgsize, message_tvb, 138, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_addflow_cmt, message_tvb, 140, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_addflow_ccid, message_tvb, 141, 1, ENC_BIG_ENDIAN);
onoffitem = proto_tree_add_item(message_tree, hf_addflow_onoffevents, message_tvb, 142, 2, ENC_BIG_ENDIAN);
onoffevents = tvb_get_ntohs(message_tvb, 142);
if (onoffevents > 0) {
onofftree = proto_item_add_subtree(onoffitem, ett_onoffarray);
for(i = 0;i < onoffevents;i++) {
onoffvalue = tvb_get_ntohl(message_tvb, 144 + (int)(sizeof(guint32) * i));
proto_tree_add_uint_format(onofftree, hf_addflow_onoffeventarray, message_tvb,
144 + (int)(sizeof(guint32) * i), (int)sizeof(guint32),
onoffvalue, "%1.3f s: set to %s", onoffvalue / 1000.0, (i & 1) ? "OFF" : "ON");
}
}
}
static void
dissect_npm_remove_flow_message(tvbuff_t *message_tvb, proto_tree *message_tree)
{
proto_tree_add_item(message_tree, hf_removeflow_flowid, message_tvb, 4, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_removeflow_measurementid, message_tvb, 8, 8, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_removeflow_streamid, message_tvb, 16, 2, ENC_BIG_ENDIAN);
}
static void
dissect_npm_identify_flow_message(tvbuff_t *message_tvb, proto_tree *message_tree, proto_item *flags_item)
{
proto_tree* flags_tree;
flags_tree = proto_item_add_subtree(flags_item, ett_identifyflow_flags);
proto_tree_add_item(flags_tree, hf_identifyflow_flag_compress_vectors, message_tvb, 1, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flags_tree, hf_identifyflow_flag_no_vectors, message_tvb, 1, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_identifyflow_flowid, message_tvb, 4, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_identifyflow_magicnumber, message_tvb, 8, 8, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_identifyflow_measurementid, message_tvb, 16, 8, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_identifyflow_streamid, message_tvb, 24, 2, ENC_BIG_ENDIAN);
}
static void
dissect_npm_data_message(tvbuff_t *message_tvb, proto_tree *message_tree, proto_item *flags_item)
{
proto_tree* flags_tree;
const guint16 message_length = tvb_get_ntohs(message_tvb, 2);
guint64 timestamp;
nstime_t t;
flags_tree = proto_item_add_subtree(flags_item, ett_data_flags);
proto_tree_add_item(flags_tree, hf_data_flag_frame_begin, message_tvb, 1, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flags_tree, hf_data_flag_frame_end, message_tvb, 1, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_data_flowid, message_tvb, 4, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_data_measurementid, message_tvb, 8, 8, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_data_streamid, message_tvb, 16, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_data_padding, message_tvb, 18, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_data_frameid, message_tvb, 20, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_data_packetseqnumber, message_tvb, 24, 8, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_data_byteseqnumber, message_tvb, 32, 8, ENC_BIG_ENDIAN);
timestamp = tvb_get_ntoh64(message_tvb, 40);
t.secs = (time_t)(timestamp / 1000000);
t.nsecs = (int)((timestamp - 1000000 * t.secs) * 1000);
proto_tree_add_time(message_tree, hf_data_timestamp, message_tvb, 40, 8, &t);
if (message_length > 4) {
proto_tree_add_item(message_tree, hf_data_payload, message_tvb, 48, message_length - 48, ENC_NA);
}
}
static void
dissect_npm_start_message(tvbuff_t *message_tvb, proto_tree *message_tree, proto_item *flags_item)
{
proto_tree* flags_tree;
flags_tree = proto_item_add_subtree(flags_item, ett_start_flags);
proto_tree_add_item(flags_tree, hf_start_flag_compress_vectors, message_tvb, 1, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flags_tree, hf_start_flag_compress_scalars, message_tvb, 1, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flags_tree, hf_start_flag_no_vectors, message_tvb, 1, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flags_tree, hf_start_flag_no_scalars, message_tvb, 1, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(message_tree, hf_start_measurementid, message_tvb, 8, 8, ENC_BIG_ENDIAN);
}
static void
dissect_npm_stop_message(tvbuff_t *message_tvb, proto_tree *message_tree)
{
proto_tree_add_item(message_tree, hf_stop_measurementid, message_tvb, 8, 8, ENC_BIG_ENDIAN);
}
static void
dissect_npm_results_message(tvbuff_t *message_tvb, proto_tree *message_tree, proto_item *flags_item)
{
proto_tree* flags_tree;
flags_tree = proto_item_add_subtree(flags_item, ett_data_flags);
proto_tree_add_item(flags_tree, hf_results_flag_eof, message_tvb, 1, 1, ENC_BIG_ENDIAN);
const guint16 message_length = tvb_get_ntohs(message_tvb, 2);
if (message_length > 4) {
proto_tree_add_item(message_tree, hf_results_data, message_tvb, 4, message_length - 4, ENC_NA);
}
}
static void
dissect_npm_message(tvbuff_t *message_tvb, packet_info *pinfo, proto_tree *npm_tree)
{
proto_tree* flags_tree;
tap_npm_rec_t* tap_rec = wmem_new0(pinfo->pool, tap_npm_rec_t);
tap_rec->type = tvb_get_guint8(message_tvb, 0);
tap_rec->size = tvb_get_ntohs(message_tvb, 2);
tap_rec->type_string = val_to_str_const(tap_rec->type, message_type_values, "Unknown NetPerfMeter message type");
tap_queue_packet(tap_npm, pinfo, tap_rec);
col_add_fstr(pinfo->cinfo, COL_INFO, "%s ", tap_rec->type_string);
proto_tree_add_item(npm_tree, hf_message_type, message_tvb, 0, 1, ENC_BIG_ENDIAN);
flags_tree = proto_tree_add_item(npm_tree, hf_message_flags, message_tvb, 1, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(npm_tree, hf_message_length, message_tvb, 2, 2, ENC_BIG_ENDIAN);
switch (tap_rec->type) {
case NETPERFMETER_ACKNOWLEDGE:
dissect_npm_acknowledge_message(message_tvb, npm_tree);
break;
case NETPERFMETER_ADD_FLOW:
dissect_npm_add_flow_message(message_tvb, npm_tree, flags_tree);
break;
case NETPERFMETER_REMOVE_FLOW:
dissect_npm_remove_flow_message(message_tvb, npm_tree);
break;
case NETPERFMETER_IDENTIFY_FLOW:
dissect_npm_identify_flow_message(message_tvb, npm_tree, flags_tree);
break;
case NETPERFMETER_DATA:
dissect_npm_data_message(message_tvb, npm_tree, flags_tree);
break;
case NETPERFMETER_START:
dissect_npm_start_message(message_tvb, npm_tree, flags_tree);
break;
case NETPERFMETER_STOP:
dissect_npm_stop_message(message_tvb, npm_tree);
break;
case NETPERFMETER_RESULTS:
dissect_npm_results_message(message_tvb, npm_tree, flags_tree);
break;
}
}
static int
dissect_npm(tvbuff_t *message_tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
{
proto_item *npm_item;
proto_tree *npm_tree;
col_append_sep_fstr(pinfo->cinfo, COL_PROTOCOL, NULL, "NetPerfMeter");
/* 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 npm protocol tree */
npm_item = proto_tree_add_item(tree, proto_npm, message_tvb, 0, -1, ENC_NA);
npm_tree = proto_item_add_subtree(npm_item, ett_npm);
} else {
npm_tree = NULL;
};
/* dissect the message */
dissect_npm_message(message_tvb, pinfo, npm_tree);
return TRUE;
}
static int
heur_dissect_npm(tvbuff_t *message_tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
{
const guint length = tvb_captured_length(message_tvb);
if (length < 4)
return FALSE;
/* For TCP, UDP or DCCP:
Type must either be NETPERFMETER_DATA or NETPERFMETER_IDENTIFY_FLOW */
const guint8 type = tvb_get_guint8(message_tvb, 0);
switch(type) {
case NETPERFMETER_DATA:
if (length < 48 + 8)
return FALSE;
/* Identify NetPerfMeter flow by payload pattern */
for(int i = 0; i < 8; i++) {
guint8 d = tvb_get_guint8(message_tvb, 48 + i);
if( (d != 30 + i) && (d != 127 - i) )
return FALSE;
}
break;
case NETPERFMETER_IDENTIFY_FLOW:
if (length < 24 + 2)
return FALSE;
if (tvb_get_ntoh64(message_tvb, 8) != NETPERFMETER_IDENTIFY_FLOW_MAGIC_NUMBER) {
/* Identify NetPerfMeter flow by NETPERFMETER_IDENTIFY_FLOW_MAGIC_NUMBER */
return FALSE;
}
break;
default:
/* Not a NetPerfMeter packet */
return FALSE;
break;
}
return dissect_npm(message_tvb, pinfo, tree, data);
}
/* TAP STAT INFO */
typedef enum
{
MESSAGE_TYPE_COLUMN = 0,
MESSAGES_COLUMN,
MESSAGES_SHARE_COLUMN,
BYTES_COLUMN,
BYTES_SHARE_COLUMN,
FIRST_SEEN_COLUMN,
LAST_SEEN_COLUMN,
INTERVAL_COLUMN,
MESSAGE_RATE_COLUMN,
BYTE_RATE_COLUMN
} npm_stat_columns;
static stat_tap_table_item npm_stat_fields[] = {
{ TABLE_ITEM_STRING, TAP_ALIGN_LEFT, "NetPerfMeter Message Type", "%-25s" },
{ TABLE_ITEM_UINT, TAP_ALIGN_RIGHT, "Messages ", "%u" },
{ TABLE_ITEM_UINT, TAP_ALIGN_RIGHT, "Messages Share (%)" , "%1.3f %%" },
{ TABLE_ITEM_UINT, TAP_ALIGN_RIGHT, "Bytes (B)", "%u" },
{ TABLE_ITEM_UINT, TAP_ALIGN_RIGHT, "Bytes Share (%) ", "%1.3f %%" },
{ TABLE_ITEM_FLOAT, TAP_ALIGN_LEFT, "First Seen (s)", "%1.6f" },
{ TABLE_ITEM_FLOAT, TAP_ALIGN_LEFT, "Last Seen (s)", "%1.6f" },
{ TABLE_ITEM_FLOAT, TAP_ALIGN_LEFT, "Interval (s)", "%1.6f" },
{ TABLE_ITEM_FLOAT, TAP_ALIGN_LEFT, "Message Rate (Msg/s)", "%1.2f" },
{ TABLE_ITEM_FLOAT, TAP_ALIGN_LEFT, "Byte Rate (B/s)", "%1.2f" }
};
static void npm_stat_init(stat_tap_table_ui* new_stat)
{
const char *table_name = "NetPerfMeter Statistics";
int num_fields = sizeof(npm_stat_fields)/sizeof(stat_tap_table_item);
stat_tap_table *table;
int i = 0;
stat_tap_table_item_type items[sizeof(npm_stat_fields)/sizeof(stat_tap_table_item)];
table = stat_tap_find_table(new_stat, table_name);
if (table) {
if (new_stat->stat_tap_reset_table_cb) {
new_stat->stat_tap_reset_table_cb(table);
}
return;
}
table = stat_tap_init_table(table_name, num_fields, 0, NULL);
stat_tap_add_table(new_stat, table);
/* Add a row for each value type */
while (message_type_values[i].strptr) {
items[MESSAGE_TYPE_COLUMN].type = TABLE_ITEM_STRING;
items[MESSAGE_TYPE_COLUMN].value.string_value = message_type_values[i].strptr;
items[MESSAGES_COLUMN].type = TABLE_ITEM_UINT;
items[MESSAGES_COLUMN].value.uint_value = 0;
items[MESSAGES_SHARE_COLUMN].type = TABLE_ITEM_NONE;
items[MESSAGES_SHARE_COLUMN].value.float_value = -1.0;
items[BYTES_COLUMN].type = TABLE_ITEM_UINT;
items[BYTES_COLUMN].value.uint_value = 0;
items[BYTES_SHARE_COLUMN].type = TABLE_ITEM_NONE;
items[BYTES_SHARE_COLUMN].value.float_value = -1.0;
items[FIRST_SEEN_COLUMN].type = TABLE_ITEM_NONE;
items[FIRST_SEEN_COLUMN].value.float_value = DBL_MAX;
items[LAST_SEEN_COLUMN].type = TABLE_ITEM_NONE;
items[LAST_SEEN_COLUMN].value.float_value = DBL_MIN;
items[INTERVAL_COLUMN].type = TABLE_ITEM_NONE;
items[INTERVAL_COLUMN].value.float_value = -1.0;
items[MESSAGE_RATE_COLUMN].type = TABLE_ITEM_NONE;
items[MESSAGE_RATE_COLUMN].value.float_value = -1.0;
items[BYTE_RATE_COLUMN].type = TABLE_ITEM_NONE;
items[BYTE_RATE_COLUMN].value.float_value = -1.0;
stat_tap_init_table_row(table, i, num_fields, items);
i++;
}
}
static tap_packet_status
npm_stat_packet(void* tapdata, packet_info* pinfo _U_, epan_dissect_t* edt _U_, const void* data)
{
stat_data_t* stat_data = (stat_data_t*)tapdata;
const tap_npm_rec_t* tap_rec = (const tap_npm_rec_t*)data;
stat_tap_table* table;
stat_tap_table_item_type* msg_data;
gint idx;
guint64 messages;
guint64 bytes;
int i = 0;
double firstSeen = -1.0;
double lastSeen = -1.0;
idx = str_to_val_idx(tap_rec->type_string, message_type_values);
if (idx < 0)
return TAP_PACKET_DONT_REDRAW;
table = g_array_index(stat_data->stat_tap_data->tables, stat_tap_table*, 0);
/* Update packets counter */
npm_total_msgs++;
msg_data = stat_tap_get_field_data(table, idx, MESSAGES_COLUMN);
msg_data->value.uint_value++;
messages = msg_data->value.uint_value;
stat_tap_set_field_data(table, idx, MESSAGES_COLUMN, msg_data);
/* Update bytes counter */
npm_total_bytes += tap_rec->size;
msg_data = stat_tap_get_field_data(table, idx, BYTES_COLUMN);
msg_data->value.uint_value += tap_rec->size;
bytes = msg_data->value.uint_value;
stat_tap_set_field_data(table, idx, BYTES_COLUMN, msg_data);
/* Update messages and bytes share */
while (message_type_values[i].strptr) {
msg_data = stat_tap_get_field_data(table, i, MESSAGES_COLUMN);
const guint m = msg_data->value.uint_value;
msg_data = stat_tap_get_field_data(table, i, BYTES_COLUMN);
const guint b = msg_data->value.uint_value;
msg_data = stat_tap_get_field_data(table, i, MESSAGES_SHARE_COLUMN);
msg_data->type = TABLE_ITEM_FLOAT;
msg_data->value.float_value = 100.0 * m / (double)npm_total_msgs;
stat_tap_set_field_data(table, i, MESSAGES_SHARE_COLUMN, msg_data);
msg_data = stat_tap_get_field_data(table, i, BYTES_SHARE_COLUMN);
msg_data->type = TABLE_ITEM_FLOAT;
msg_data->value.float_value = 100.0 * b / (double)npm_total_bytes;
stat_tap_set_field_data(table, i, BYTES_SHARE_COLUMN, msg_data);
i++;
}
/* Update first seen time */
if (pinfo->presence_flags & PINFO_HAS_TS) {
msg_data = stat_tap_get_field_data(table, idx, FIRST_SEEN_COLUMN);
msg_data->type = TABLE_ITEM_FLOAT;
msg_data->value.float_value = MIN(msg_data->value.float_value, nstime_to_sec(&pinfo->rel_ts));
firstSeen = msg_data->value.float_value;
stat_tap_set_field_data(table, idx, FIRST_SEEN_COLUMN, msg_data);
}
/* Update last seen time */
if (pinfo->presence_flags & PINFO_HAS_TS) {
msg_data = stat_tap_get_field_data(table, idx, LAST_SEEN_COLUMN);
msg_data->type = TABLE_ITEM_FLOAT;
msg_data->value.float_value = MAX(msg_data->value.float_value, nstime_to_sec(&pinfo->rel_ts));
lastSeen = msg_data->value.float_value;
stat_tap_set_field_data(table, idx, LAST_SEEN_COLUMN, msg_data);
}
if ((lastSeen - firstSeen) > 0.0) {
/* Update interval */
msg_data = stat_tap_get_field_data(table, idx, INTERVAL_COLUMN);
msg_data->type = TABLE_ITEM_FLOAT;
msg_data->value.float_value = lastSeen - firstSeen;
stat_tap_set_field_data(table, idx, INTERVAL_COLUMN, msg_data);
/* Update message rate */
msg_data = stat_tap_get_field_data(table, idx, MESSAGE_RATE_COLUMN);
msg_data->type = TABLE_ITEM_FLOAT;
msg_data->value.float_value = messages / (lastSeen - firstSeen);
stat_tap_set_field_data(table, idx, MESSAGE_RATE_COLUMN, msg_data);
/* Update byte rate */
msg_data = stat_tap_get_field_data(table, idx, BYTE_RATE_COLUMN);
msg_data->type = TABLE_ITEM_FLOAT;
msg_data->value.float_value = bytes / (lastSeen - firstSeen);
stat_tap_set_field_data(table, idx, BYTE_RATE_COLUMN, msg_data);
}
return TAP_PACKET_REDRAW;
}
static void
npm_stat_reset(stat_tap_table* table)
{
guint element;
stat_tap_table_item_type* item_data;
for (element = 0; element < table->num_elements; element++) {
item_data = stat_tap_get_field_data(table, element, MESSAGES_COLUMN);
item_data->value.uint_value = 0;
stat_tap_set_field_data(table, element, MESSAGES_COLUMN, item_data);
item_data = stat_tap_get_field_data(table, element, MESSAGES_SHARE_COLUMN);
item_data->type = TABLE_ITEM_NONE;
item_data->value.float_value = -1.0;
stat_tap_set_field_data(table, element, MESSAGES_SHARE_COLUMN, item_data);
item_data = stat_tap_get_field_data(table, element, BYTES_COLUMN);
item_data->value.uint_value = 0;
stat_tap_set_field_data(table, element, BYTES_COLUMN, item_data);
item_data = stat_tap_get_field_data(table, element, BYTES_SHARE_COLUMN);
item_data->type = TABLE_ITEM_NONE;
item_data->value.float_value = -1.0;
stat_tap_set_field_data(table, element, BYTES_SHARE_COLUMN, item_data);
item_data = stat_tap_get_field_data(table, element, FIRST_SEEN_COLUMN);
item_data->type = TABLE_ITEM_NONE;
item_data->value.float_value = DBL_MAX;
stat_tap_set_field_data(table, element, FIRST_SEEN_COLUMN, item_data);
item_data = stat_tap_get_field_data(table, element, LAST_SEEN_COLUMN);
item_data->type = TABLE_ITEM_NONE;
item_data->value.float_value = DBL_MIN;
stat_tap_set_field_data(table, element, LAST_SEEN_COLUMN, item_data);
item_data = stat_tap_get_field_data(table, element, INTERVAL_COLUMN);
item_data->type = TABLE_ITEM_NONE;
item_data->value.float_value = -1.0;
stat_tap_set_field_data(table, element, INTERVAL_COLUMN, item_data);
item_data = stat_tap_get_field_data(table, element, MESSAGE_RATE_COLUMN);
item_data->type = TABLE_ITEM_NONE;
item_data->value.float_value = -1.0;
stat_tap_set_field_data(table, element, MESSAGE_RATE_COLUMN, item_data);
item_data = stat_tap_get_field_data(table, element, BYTE_RATE_COLUMN);
item_data->type = TABLE_ITEM_NONE;
item_data->value.float_value = -1.0;
stat_tap_set_field_data(table, element, BYTE_RATE_COLUMN, item_data);
}
npm_total_msgs = 0;
npm_total_bytes = 0;
}
/* Register the protocol with Wireshark */
void
proto_register_npm(void)
{
/* Setup protocol subtree array */
static gint *ett[] = {
&ett_npm,
&ett_addflow_flags,
&ett_identifyflow_flags,
&ett_start_flags,
&ett_data_flags,
&ett_results_flags,
&ett_onoffarray
};
static tap_param npm_stat_params[] = {
{ PARAM_FILTER, "filter", "Filter", NULL, TRUE }
};
static stat_tap_table_ui npm_stat_table = {
REGISTER_STAT_GROUP_UNSORTED,
"NetPerfMeter Statistics",
"npm",
"npm,stat",
npm_stat_init,
npm_stat_packet,
npm_stat_reset,
NULL,
NULL,
sizeof(npm_stat_fields)/sizeof(stat_tap_table_item), npm_stat_fields,
sizeof(npm_stat_params)/sizeof(tap_param), npm_stat_params,
NULL,
0
};
/* Register the protocol name and description */
proto_npm = proto_register_protocol("NetPerfMeter Protocol", "NetPerfMeter", "netperfmeter");
/* Required function calls to register the header fields and subtrees used */
proto_register_field_array(proto_npm, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
tap_npm = register_tap("npm");
register_stat_tap_table_ui(&npm_stat_table);
}
void
proto_reg_handoff_npm(void)
{
dissector_handle_t npm_handle;
/* NetPerfMeter protocol over SCTP is detected by PPIDs */
npm_handle = create_dissector_handle(dissect_npm, proto_npm);
dissector_add_uint("sctp.ppi", PPID_NETPERFMETER_CONTROL_LEGACY, npm_handle);
dissector_add_uint("sctp.ppi", PPID_NETPERFMETER_DATA_LEGACY, npm_handle);
dissector_add_uint("sctp.ppi", NPMP_CTRL_PAYLOAD_PROTOCOL_ID, npm_handle);
dissector_add_uint("sctp.ppi", NPMP_DATA_PAYLOAD_PROTOCOL_ID, npm_handle);
/* Heuristic dissector for TCP, UDP and DCCP */
heur_dissector_add("tcp", heur_dissect_npm, "NetPerfMeter over TCP", "netperfmeter_tcp", proto_npm, HEURISTIC_ENABLE);
heur_dissector_add("udp", heur_dissect_npm, "NetPerfMeter over UDP", "netperfmeter_udp", proto_npm, HEURISTIC_ENABLE);
heur_dissector_add("dccp", heur_dissect_npm, "NetPerfMeter over DCCP", "netperfmeter_dccp", proto_npm, HEURISTIC_ENABLE);
}
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* Local Variables:
* c-basic-offset: 2
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* ex: set shiftwidth=2 tabstop=8 expandtab:
* :indentSize=2:tabSize=8:noTabs=true:
*/
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