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/* msg_clk_cmp.c
* WiMax MAC Management CLK_CMP Message decoders
*
* Copyright (c) 2007 by Intel Corporation.
*
* Author: Lu Pan <lu.pan@intel.com>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1999 Gerald Combs
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/* Include files */
#include "config.h"
#include <epan/packet.h>
#include "wimax_mac.h"
void proto_register_mac_mgmt_msg_clk_cmp(void);
void proto_reg_handoff_mac_mgmt_msg_clk_cmp(void);
static gint proto_mac_mgmt_msg_clk_cmp_decoder = -1;
static gint ett_mac_mgmt_msg_clk_cmp_decoder = -1;
/* CLK_CMP fields */
static gint hf_clk_cmp_clock_count = -1;
static gint hf_clk_cmp_clock_id = -1;
static gint hf_clk_cmp_seq_number = -1;
static gint hf_clk_cmp_comparison_value = -1;
/* static gint hf_clk_cmp_invalid_tlv = -1; */
/* Decode CLK_CMP messages. */
static int dissect_mac_mgmt_msg_clk_cmp_decoder(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
{
guint offset = 0;
guint i;
guint clock_count;
proto_item *clk_cmp_item;
proto_tree *clk_cmp_tree;
{ /* we are being asked for details */
/* display MAC payload type CLK_CMP */
clk_cmp_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_clk_cmp_decoder, tvb, offset, -1, "Clock Comparison (CLK-CMP)");
/* add MAC CLK_CMP subtree */
clk_cmp_tree = proto_item_add_subtree(clk_cmp_item, ett_mac_mgmt_msg_clk_cmp_decoder);
/* get the clock count */
clock_count = tvb_get_guint8(tvb, offset);
/* display the clock count */
proto_tree_add_item(clk_cmp_tree, hf_clk_cmp_clock_count, tvb, offset, 1, ENC_BIG_ENDIAN);
/* set the offset for clock comparison */
offset++;
for (i = 0; i < clock_count; i++ )
{ /* display the Clock ID */
proto_tree_add_item(clk_cmp_tree, hf_clk_cmp_clock_id, tvb, offset++, 1, ENC_BIG_ENDIAN);
/* display the sequence number */
proto_tree_add_item(clk_cmp_tree, hf_clk_cmp_seq_number, tvb, offset++, 1, ENC_BIG_ENDIAN);
/* display the comparison value */
proto_tree_add_item(clk_cmp_tree, hf_clk_cmp_comparison_value, tvb, offset++, 1, ENC_BIG_ENDIAN);
}
}
return tvb_captured_length(tvb);
}
/* Register Wimax Mac Payload Protocol and Dissector */
void proto_register_mac_mgmt_msg_clk_cmp(void)
{
/* CLK_CMP fields display */
static hf_register_info hf_clk_cmp[] =
{
{
&hf_clk_cmp_clock_count,
{
"Clock Count", "wmx.clk_cmp.clock_count",
FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL
}
},
{
&hf_clk_cmp_clock_id,
{
"Clock ID", "wmx.clk_cmp.clock_id",
FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL
}
},
{
&hf_clk_cmp_comparison_value,
{
"Comparison Value", "wmx.clk_cmp.comparison_value",
FT_INT8, BASE_DEC, NULL, 0x0, NULL, HFILL
}
},
#if 0
{
&hf_clk_cmp_invalid_tlv,
{
"Invalid TLV", "wmx.clk_cmp.invalid_tlv",
FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
}
},
#endif
{
&hf_clk_cmp_seq_number,
{
"Sequence Number", "wmx.clk_cmp.seq_number",
FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL
}
}
};
/* Setup protocol subtree array */
static gint *ett[] =
{
&ett_mac_mgmt_msg_clk_cmp_decoder,
};
proto_mac_mgmt_msg_clk_cmp_decoder = proto_register_protocol (
"WiMax CLK-CMP Message", /* name */
"WiMax CLK-CMP (clk)", /* short name */
"wmx.clk" /* abbrev */
);
proto_register_field_array(proto_mac_mgmt_msg_clk_cmp_decoder, hf_clk_cmp, array_length(hf_clk_cmp));
proto_register_subtree_array(ett, array_length(ett));
}
void
proto_reg_handoff_mac_mgmt_msg_clk_cmp(void)
{
dissector_handle_t handle;
handle = create_dissector_handle(dissect_mac_mgmt_msg_clk_cmp_decoder, proto_mac_mgmt_msg_clk_cmp_decoder);
dissector_add_uint("wmx.mgmtmsg", MAC_MGMT_MSG_CLK_CMP, handle);
}
/*
* Editor modelines - http://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 8
* tab-width: 8
* indent-tabs-mode: t
* End:
*
* vi: set shiftwidth=8 tabstop=8 noexpandtab:
* :indentSize=8:tabSize=8:noTabs=false:
*/
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