plugins-wimax-msg_dsc.c

Intel的WIMAX代码,主要是mac层code

plugins/wimax/msg_dsc.c - Google Code Search这是 Google 取自 
      http://anonsvn.wireshark.org/wireshark/trunk 的 plugins/wimax/msg_dsc.c 
缓存副本

      Google 和网页作者无关，不对网页的内容负责。



http://anonsvn.wireshark.org/wireshark/trunk/plugins/wimax/
          AUTHORS
COPYING
ChangeLog
Makefile.am
Makefile.common
Makefile.nmake
README.wimax
crc.c
crc.h
crc_data.c
mac_hd_generic_decoder.c
mac_hd_type1_decoder.c
mac_hd_type2_decoder.c
mac_mgmt_msg_decoder.c
moduleinfo.h
moduleinfo.nmake
msg_aas_beam.c
msg_aas_fbck.c
msg_arq.c
msg_clk_cmp.c
msg_dcd.c
msg_dlmap.c
msg_dreg.c
msg_dsa.c
msg_dsc.c
msg_dsd.c
msg_dsx_rvd.c
msg_fpc.c
msg_pkm.c
msg_pmc.c
msg_prc_lt_ctrl.c
msg_reg_req.c
msg_reg_rsp.c
msg_rep.c
msg_res_cmd.c
msg_rng_req.c
msg_rng_rsp.c
msg_sbc.c
msg_ucd.c
msg_ulmap.c
packet-wmx.c
plugin.rc.in
wimax_bits.h
wimax_cdma_code_decoder.c
wimax_compact_dlmap_ie_decoder.c
wimax_compact_ulmap_ie_decoder.c
wimax_fch_decoder.c
wimax_ffb_decoder.c
wimax_hack_decoder.c
wimax_harq_map_decoder.c
wimax_mac.h
wimax_pdu_decoder.c
wimax_phy_attributes_decoder.c
wimax_tlv.c
wimax_tlv.h
wimax_utils.c
wimax_utils.h
    /* msg_dsc.c
 * WiMax MAC Management DSC-REQ/RSP/ACK Messages decoder
 *
 * Copyright (c) 2007 by Intel Corporation.
 *
 * Author: Lu Pan <[e-mail]>
 *
 * $Id$
 *
 * Wireshark - Network traffic analyzer
 * By Gerald Combs <[e-mail]>
 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

/* Include files */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

/*
#define DEBUG
*/

#include <glib.h>
#include <epan/packet.h>
#include "wimax_tlv.h"
#include "wimax_mac.h"
#include "wimax_utils.h"

extern gint proto_mac_mgmt_msg_dsa_decoder;

/* forward reference */
void proto_register_mac_mgmt_msg_dsc(void);
void dissect_mac_mgmt_msg_dsc_req_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
void dissect_mac_mgmt_msg_dsc_rsp_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
void dissect_mac_mgmt_msg_dsc_ack_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);

static gint proto_mac_mgmt_msg_dsc_decoder = -1;
static gint ett_mac_mgmt_msg_dsc_req_decoder = -1;
static gint ett_mac_mgmt_msg_dsc_rsp_decoder = -1;
static gint ett_mac_mgmt_msg_dsc_ack_decoder = -1;

/* Setup protocol subtree array */
static gint *ett[] =
{
	&ett_mac_mgmt_msg_dsc_req_decoder,
	&ett_mac_mgmt_msg_dsc_rsp_decoder,
	&ett_mac_mgmt_msg_dsc_ack_decoder
};

static gchar *dsc_msgs[] =
{
	"Dynamic Service Change Request (DSC-REQ)",
	"Dynamic Service Change Response (DSC-RSP)",
	"Dynamic Service Change Acknowledge (DSC-ACK)"
};

/* fix fields */
static gint hf_dsc_req_message_type = -1;
static gint hf_dsc_transaction_id = -1;
static gint hf_dsc_rsp_message_type = -1;
static gint hf_dsc_confirmation_code = -1;
static gint hf_dsc_ack_message_type = -1;

/* DSx display */
static hf_register_info hf[] =
{
	{
		&hf_dsc_ack_message_type,
		{
			"MAC Management Message Type", "wimax.macmgtmsgtype.dsc_ack",
			FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
		}
	},
	{
		&hf_dsc_req_message_type,
		{
			"MAC Management Message Type", "wimax.macmgtmsgtype.dsc_req",
			FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
		}
	},
	{
		&hf_dsc_rsp_message_type,
		{
			"MAC Management Message Type", "wimax.macmgtmsgtype.dsc_rsp",
			FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
		}
	},
	{
		&hf_dsc_confirmation_code,
		{
			"Confirmation code", "wimax.dsc.confirmation_code",
			FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
		}
	},
	{
		&hf_dsc_transaction_id,
		{
			"Transaction ID", "wimax.dsc.transaction_id",
			FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL
		}
	}
};

/* Register Wimax Mac Payload Protocol and Dissector */
void proto_register_mac_mgmt_msg_dsc(void)
{
	if (proto_mac_mgmt_msg_dsc_decoder == -1)
	{
		proto_mac_mgmt_msg_dsc_decoder = proto_mac_mgmt_msg_dsa_decoder;

		proto_register_field_array(proto_mac_mgmt_msg_dsc_decoder, hf, array_length(hf));
		proto_register_subtree_array(ett, array_length(ett));
	}
}

void dissect_mac_mgmt_msg_dsc_req_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
	guint offset = 0;
	guint tvb_len, payload_type;
	guint dsc_transaction_id;
	proto_item *dsc_item = NULL;
	proto_tree *dsc_tree = NULL;

	if(tree)
	{	/* we are being asked for details */
		/* get the message type */
		payload_type = tvb_get_guint8(tvb, offset);
		/* ensure the message type is DSC REQ/RSP/ACK */
		if(payload_type != MAC_MGMT_MSG_DSC_REQ)
			return;
		/* Get the tvb reported length */
		tvb_len =  tvb_reported_length(tvb);
		/* display MAC message type */
		dsc_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_dsc_decoder, tvb, offset, tvb_len, "%s (%u bytes)", dsc_msgs[payload_type - MAC_MGMT_MSG_DSC_REQ], tvb_len);
		/* add MAC DSx subtree */
		dsc_tree = proto_item_add_subtree(dsc_item, ett_mac_mgmt_msg_dsc_req_decoder);
		/* Decode and display the Uplink Channel Descriptor (UCD) */
		/* display the Message Type */
		proto_tree_add_item(dsc_tree, hf_dsc_req_message_type, tvb, offset, 1, FALSE);
		/* move to next field */
		offset++;
		/* get the Configuration Change Count */
		dsc_transaction_id = tvb_get_ntohs(tvb, offset);
		/* display the Transaction ID */
		proto_tree_add_item(dsc_tree, hf_dsc_transaction_id, tvb, offset, 2, FALSE);
		/* move to next field */
		offset += 2;
		/* process DSC REQ message TLV Encode Information */
		wimax_common_tlv_encoding_decoder(tvb_new_subset(tvb, offset, (tvb_len - offset), (tvb_len - offset)), pinfo, dsc_tree);
	}
}

void dissect_mac_mgmt_msg_dsc_rsp_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
	guint offset = 0;
	guint tvb_len, payload_type;
	guint dsc_transaction_id;
	proto_item *dsc_item = NULL;
	proto_tree *dsc_tree = NULL;

	if(tree)
	{	/* we are being asked for details */
		/* get the message type */
		payload_type = tvb_get_guint8(tvb, offset);
		/* ensure the message type is DSC REQ/RSP/ACK */
		if(payload_type != MAC_MGMT_MSG_DSC_RSP)
			return;
		/* Get the tvb reported length */
		tvb_len =  tvb_reported_length(tvb);
		/* display MAC message type */
		dsc_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_dsc_decoder, tvb, offset, tvb_len, "%s (%u bytes)", dsc_msgs[payload_type - MAC_MGMT_MSG_DSC_REQ], tvb_len);
		/* add MAC DSx subtree */
		dsc_tree = proto_item_add_subtree(dsc_item, ett_mac_mgmt_msg_dsc_rsp_decoder);
		/* Decode and display the Uplink Channel Descriptor (UCD) */
		/* display the Message Type */
		proto_tree_add_item(dsc_tree, hf_dsc_rsp_message_type, tvb, offset, 1, FALSE);
		/* move to next field */
		offset++;
		/* get the Configuration Change Count */
		dsc_transaction_id = tvb_get_ntohs(tvb, offset);
		/* display the Transaction ID */
		proto_tree_add_item(dsc_tree, hf_dsc_transaction_id, tvb, offset, 2, FALSE);
		/* move to next field */
		offset += 2;
		/* display the Confirmation Code */
		proto_tree_add_item(dsc_tree, hf_dsc_confirmation_code, tvb, offset, 1, FALSE);
		/* move to next field */
		offset++;
		/* process DSC RSP message TLV Encode Information */
		wimax_common_tlv_encoding_decoder(tvb_new_subset(tvb, offset, (tvb_len - offset), (tvb_len - offset)), pinfo, dsc_tree);
	}
}

void dissect_mac_mgmt_msg_dsc_ack_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
	guint offset = 0;
	guint tvb_len, payload_type;
	guint dsc_transaction_id;
	proto_item *dsc_item = NULL;
	proto_tree *dsc_tree = NULL;

	if(tree)
	{	/* we are being asked for details */
		/* get the message type */
		payload_type = tvb_get_guint8(tvb, offset);
		/* ensure the message type is DSC REQ/RSP/ACK */
		if((payload_type < MAC_MGMT_MSG_DSC_REQ) || (payload_type > MAC_MGMT_MSG_DSC_ACK))
			return;
		/* Get the tvb reported length */
		tvb_len =  tvb_reported_length(tvb);
		/* display MAC message type */
		dsc_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_dsc_decoder, tvb, offset, tvb_len, "%s (%u bytes)", dsc_msgs[payload_type - MAC_MGMT_MSG_DSC_REQ], tvb_len);
		/* add MAC DSx subtree */
		dsc_tree = proto_item_add_subtree(dsc_item, ett_mac_mgmt_msg_dsc_ack_decoder);
		/* Decode and display the Uplink Channel Descriptor (UCD) */
		/* display the Message Type */
		proto_tree_add_item(dsc_tree, hf_dsc_ack_message_type, tvb, offset, 1, FALSE);
		/* move to next field */
		offset++;
		/* get the Configuration Change Count */
		dsc_transaction_id = tvb_get_ntohs(tvb, offset);
		/* display the Transaction ID */
		proto_tree_add_item(dsc_tree, hf_dsc_transaction_id, tvb, offset, 2, FALSE);
		/* move to next field */
		offset += 2;
		/* display the Confirmation Code */
		proto_tree_add_item(dsc_tree, hf_dsc_confirmation_code, tvb, offset, 1, FALSE);
		/* move to next field */
		offset++;
		/* process DSC ACK message TLV Encode Information */
		wimax_common_tlv_encoding_decoder(tvb_new_subset(tvb, offset, (tvb_len - offset), (tvb_len - offset)), pinfo, dsc_tree);
	}
}




      取自 
      http://anonsvn.wireshark.org/wireshark/trunk 的 plugins/wimax/msg_dsc.c - 
      LGPL - C