forked from osmocom/wireshark
154 lines
4.4 KiB
C
154 lines
4.4 KiB
C
/* packet-ax4000.c
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* Routines for Spirent AX/4000 Test Block dissection
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* Copyright 2004, SEKINE Hideki <sekineh@gf7.so-net.ne.jp>
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "config.h"
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#include <epan/packet.h>
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#include <epan/ipproto.h>
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void proto_register_ax4000(void);
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void proto_reg_handoff_ax4000(void);
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/* Initialize the protocol and registered fields */
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static int proto_ax4000 = -1;
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static int hf_ax4000_port = -1;
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static int hf_ax4000_chassis = -1;
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static int hf_ax4000_fill = -1;
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static int hf_ax4000_index = -1;
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static int hf_ax4000_timestamp = -1;
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static int hf_ax4000_seq = -1;
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static int hf_ax4000_crc = -1;
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/* Initialize the subtree pointers */
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static gint ett_ax4000 = -1;
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/* Code to actually dissect the packets */
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static int
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dissect_ax4000(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
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{
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proto_item *ti;
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proto_tree *ax4000_tree;
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guint32 ax_port, ax_chassis, ax_index, ax_seq, ax_timestamp;
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/* Make entries in Protocol column and Info column on summary display */
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "AX4000");
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col_clear(pinfo->cinfo, COL_INFO);
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/* create display subtree for the protocol */
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ti = proto_tree_add_item(tree, proto_ax4000, tvb, 0, -1, ENC_NA);
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ax4000_tree = proto_item_add_subtree(ti, ett_ax4000);
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proto_tree_add_item_ret_uint(ax4000_tree, hf_ax4000_port, tvb, 0, 1, ENC_LITTLE_ENDIAN, &ax_port);
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proto_tree_add_item_ret_uint(ax4000_tree, hf_ax4000_chassis, tvb, 1, 1, ENC_LITTLE_ENDIAN, &ax_chassis);
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proto_tree_add_item(ax4000_tree, hf_ax4000_fill, tvb, 2, 1, ENC_BIG_ENDIAN);
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proto_tree_add_item_ret_uint(ax4000_tree, hf_ax4000_index, tvb, 2, 2, ENC_BIG_ENDIAN, &ax_index);
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proto_tree_add_item_ret_uint(ax4000_tree, hf_ax4000_timestamp, tvb, 6, 4, ENC_LITTLE_ENDIAN, &ax_timestamp);
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proto_tree_add_item_ret_uint(ax4000_tree, hf_ax4000_seq, tvb, 10, 4, ENC_LITTLE_ENDIAN, &ax_seq);
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proto_tree_add_item(ax4000_tree, hf_ax4000_crc, tvb, 14, 2, ENC_LITTLE_ENDIAN);
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col_append_fstr(pinfo->cinfo, COL_INFO,
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"Chss:%u Prt:%u Idx:%u Seq:0x%08x TS:%.6f[msec]",
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ax_chassis, ax_port, ax_index, ax_seq, ax_timestamp*1e-5);
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return tvb_captured_length(tvb);
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}
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/* Register the protocol with Wireshark */
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/* this format is require because a script is used to build the C function
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that calls all the protocol registration.
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*/
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void
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proto_register_ax4000(void)
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{
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static hf_register_info hf[] = {
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{ &hf_ax4000_port,
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{ "Port Number", "ax4000.port",
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FT_UINT8, BASE_DEC, NULL, 0x0,
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NULL, HFILL }
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},
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{ &hf_ax4000_chassis,
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{ "Chassis Number", "ax4000.chassis",
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FT_UINT8, BASE_DEC, NULL, 0x0,
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NULL, HFILL }
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},
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{ &hf_ax4000_fill,
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{ "Fill Type", "ax4000.fill",
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FT_UINT8, BASE_DEC, NULL, 0xc0,
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NULL, HFILL }
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},
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{ &hf_ax4000_index,
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{ "Index", "ax4000.index",
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FT_UINT16, BASE_DEC, NULL, 0x0FFF,
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NULL, HFILL }
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},
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{ &hf_ax4000_timestamp,
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{ "Timestamp", "ax4000.timestamp",
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FT_UINT32, BASE_HEX, NULL, 0x0,
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NULL, HFILL }
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},
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{ &hf_ax4000_seq,
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{ "Sequence Number", "ax4000.seq",
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FT_UINT32, BASE_HEX, NULL, 0x0,
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NULL, HFILL }
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},
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{ &hf_ax4000_crc,
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{ "CRC (unchecked)", "ax4000.crc",
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FT_UINT16, BASE_HEX, NULL, 0x0,
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NULL, HFILL }
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}
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};
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/* Setup protocol subtree array */
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static gint *ett[] = {
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&ett_ax4000
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};
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/* Register the protocol name and description */
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proto_ax4000 = proto_register_protocol("AX/4000 Test Block",
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"AX4000", "ax4000");
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/* Required function calls to register the header fields and subtrees used */
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proto_register_field_array(proto_ax4000, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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}
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#define AX4000_TCP_PORT 3357 /* assigned by IANA */
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#define AX4000_UDP_PORT 3357 /* assigned by IANA */
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void
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proto_reg_handoff_ax4000(void)
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{
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dissector_handle_t ax4000_handle;
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ax4000_handle = create_dissector_handle(dissect_ax4000, proto_ax4000);
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dissector_add_uint("ip.proto", IP_PROTO_AX4000, ax4000_handle);
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dissector_add_uint_with_preference("tcp.port", AX4000_TCP_PORT, ax4000_handle);
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dissector_add_uint_with_preference("udp.port", AX4000_UDP_PORT, ax4000_handle);
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}
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/*
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* Editor modelines - https://www.wireshark.org/tools/modelines.html
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*
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* Local variables:
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* c-basic-offset: 8
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* tab-width: 8
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* indent-tabs-mode: t
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* End:
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*
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* vi: set shiftwidth=8 tabstop=8 noexpandtab:
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* :indentSize=8:tabSize=8:noTabs=false:
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*/
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