151 lines
4.0 KiB
C
151 lines
4.0 KiB
C
/* msg_clk_cmp.c
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* WiMax MAC Management CLK_CMP Message decoders
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*
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* Copyright (c) 2007 by Intel Corporation.
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*
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* Author: Lu Pan <lu.pan@intel.com>
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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 1999 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 files */
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#include "config.h"
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#include <epan/packet.h>
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#include "wimax_mac.h"
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void proto_register_mac_mgmt_msg_clk_cmp(void);
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void proto_reg_handoff_mac_mgmt_msg_clk_cmp(void);
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static gint proto_mac_mgmt_msg_clk_cmp_decoder = -1;
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static gint ett_mac_mgmt_msg_clk_cmp_decoder = -1;
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/* CLK_CMP fields */
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static gint hf_clk_cmp_clock_count = -1;
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static gint hf_clk_cmp_clock_id = -1;
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static gint hf_clk_cmp_seq_number = -1;
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static gint hf_clk_cmp_comparison_value = -1;
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/* static gint hf_clk_cmp_invalid_tlv = -1; */
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/* Decode CLK_CMP messages. */
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static int dissect_mac_mgmt_msg_clk_cmp_decoder(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
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{
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guint offset = 0;
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guint i;
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guint clock_count;
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proto_item *clk_cmp_item;
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proto_tree *clk_cmp_tree;
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{ /* we are being asked for details */
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/* display MAC payload type CLK_CMP */
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clk_cmp_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_clk_cmp_decoder, tvb, offset, -1, "Clock Comparison (CLK-CMP)");
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/* add MAC CLK_CMP subtree */
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clk_cmp_tree = proto_item_add_subtree(clk_cmp_item, ett_mac_mgmt_msg_clk_cmp_decoder);
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/* get the clock count */
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clock_count = tvb_get_guint8(tvb, offset);
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/* display the clock count */
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proto_tree_add_item(clk_cmp_tree, hf_clk_cmp_clock_count, tvb, offset, 1, ENC_BIG_ENDIAN);
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/* set the offset for clock comparison */
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offset++;
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for (i = 0; i < clock_count; i++ )
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{ /* display the Clock ID */
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proto_tree_add_item(clk_cmp_tree, hf_clk_cmp_clock_id, tvb, offset++, 1, ENC_BIG_ENDIAN);
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/* display the sequence number */
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proto_tree_add_item(clk_cmp_tree, hf_clk_cmp_seq_number, tvb, offset++, 1, ENC_BIG_ENDIAN);
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/* display the comparison value */
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proto_tree_add_item(clk_cmp_tree, hf_clk_cmp_comparison_value, tvb, offset++, 1, ENC_BIG_ENDIAN);
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}
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}
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return tvb_captured_length(tvb);
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}
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/* Register Wimax Mac Payload Protocol and Dissector */
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void proto_register_mac_mgmt_msg_clk_cmp(void)
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{
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/* CLK_CMP fields display */
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static hf_register_info hf_clk_cmp[] =
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{
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{
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&hf_clk_cmp_clock_count,
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{
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"Clock Count", "wmx.clk_cmp.clock_count",
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FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL
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}
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},
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{
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&hf_clk_cmp_clock_id,
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{
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"Clock ID", "wmx.clk_cmp.clock_id",
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FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL
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}
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},
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{
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&hf_clk_cmp_comparison_value,
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{
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"Comparison Value", "wmx.clk_cmp.comparison_value",
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FT_INT8, BASE_DEC, NULL, 0x0, NULL, HFILL
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}
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},
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#if 0
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{
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&hf_clk_cmp_invalid_tlv,
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{
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"Invalid TLV", "wmx.clk_cmp.invalid_tlv",
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FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
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}
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},
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#endif
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{
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&hf_clk_cmp_seq_number,
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{
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"Sequence Number", "wmx.clk_cmp.seq_number",
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FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL
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}
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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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{
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&ett_mac_mgmt_msg_clk_cmp_decoder,
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};
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proto_mac_mgmt_msg_clk_cmp_decoder = proto_register_protocol (
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"WiMax CLK-CMP Message", /* name */
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"WiMax CLK-CMP (clk)", /* short name */
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"wmx.clk" /* abbrev */
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);
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proto_register_field_array(proto_mac_mgmt_msg_clk_cmp_decoder, hf_clk_cmp, array_length(hf_clk_cmp));
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proto_register_subtree_array(ett, array_length(ett));
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}
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void
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proto_reg_handoff_mac_mgmt_msg_clk_cmp(void)
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{
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dissector_handle_t handle;
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handle = create_dissector_handle(dissect_mac_mgmt_msg_clk_cmp_decoder, proto_mac_mgmt_msg_clk_cmp_decoder);
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dissector_add_uint("wmx.mgmtmsg", MAC_MGMT_MSG_CLK_CMP, 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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