2007-05-25 23:40:42 +00:00
|
|
|
/* msg_dsa.c
|
|
|
|
* WiMax MAC Management DSA-REQ/RSP/ACK Messages decoder
|
|
|
|
*
|
|
|
|
* Copyright (c) 2007 by Intel Corporation.
|
|
|
|
*
|
|
|
|
* Author: Lu Pan <lu.pan@intel.com>
|
|
|
|
*
|
|
|
|
* $Id$
|
|
|
|
*
|
|
|
|
* 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
|
2012-06-28 22:56:06 +00:00
|
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
2007-05-25 23:40:42 +00:00
|
|
|
*/
|
|
|
|
|
|
|
|
/* Include files */
|
|
|
|
|
|
|
|
#include "config.h"
|
|
|
|
|
|
|
|
/*
|
|
|
|
#define DEBUG
|
|
|
|
*/
|
|
|
|
|
2007-05-27 18:33:13 +00:00
|
|
|
#include <glib.h>
|
2007-05-25 23:40:42 +00:00
|
|
|
#include <epan/packet.h>
|
|
|
|
#include "wimax_tlv.h"
|
|
|
|
#include "wimax_mac.h"
|
|
|
|
#include "wimax_utils.h"
|
|
|
|
|
|
|
|
gint proto_mac_mgmt_msg_dsa_decoder = -1;
|
|
|
|
static gint ett_mac_mgmt_msg_dsa_req_decoder = -1;
|
|
|
|
static gint ett_mac_mgmt_msg_dsa_rsp_decoder = -1;
|
|
|
|
static gint ett_mac_mgmt_msg_dsa_ack_decoder = -1;
|
|
|
|
|
2009-08-04 19:01:34 +00:00
|
|
|
static const value_string vals_dsa_msgs[] = {
|
2009-08-04 23:14:40 +00:00
|
|
|
{ MAC_MGMT_MSG_DSA_REQ, "Dynamic Service Addition Request (DSA-REQ)" },
|
|
|
|
{ MAC_MGMT_MSG_DSA_RSP, "Dynamic Service Addition Response (DSA-RSP)" },
|
|
|
|
{ MAC_MGMT_MSG_DSA_ACK, "Dynamic Service Addition Acknowledge (DSA-ACK)" },
|
|
|
|
{ 0, NULL }
|
2007-05-25 23:40:42 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
/* fix fields */
|
|
|
|
static gint hf_dsa_req_message_type = -1;
|
|
|
|
static gint hf_dsa_transaction_id = -1;
|
|
|
|
static gint hf_dsa_rsp_message_type = -1;
|
|
|
|
static gint hf_dsa_confirmation_code = -1;
|
|
|
|
static gint hf_dsa_ack_message_type = -1;
|
|
|
|
|
|
|
|
|
|
|
|
void dissect_mac_mgmt_msg_dsa_req_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
|
|
{
|
|
|
|
guint offset = 0;
|
|
|
|
guint tvb_len, payload_type;
|
|
|
|
proto_item *dsa_item = NULL;
|
|
|
|
proto_tree *dsa_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 DSA REQ */
|
|
|
|
if(payload_type != MAC_MGMT_MSG_DSA_REQ)
|
|
|
|
return;
|
2007-05-27 18:33:13 +00:00
|
|
|
/* Get the tvb reported length */
|
|
|
|
tvb_len = tvb_reported_length(tvb);
|
2007-05-25 23:40:42 +00:00
|
|
|
/* display MAC message type */
|
2009-08-04 19:01:34 +00:00
|
|
|
dsa_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_dsa_decoder, tvb, offset, tvb_len,
|
|
|
|
"%s (%u bytes)", val_to_str(payload_type, vals_dsa_msgs, "Unknown"), tvb_len);
|
2007-05-25 23:40:42 +00:00
|
|
|
/* add MAC DSx subtree */
|
|
|
|
dsa_tree = proto_item_add_subtree(dsa_item, ett_mac_mgmt_msg_dsa_req_decoder);
|
|
|
|
/* Decode and display the Uplink Channel Descriptor (UCD) */
|
|
|
|
/* display the Message Type */
|
2011-10-06 14:46:34 +00:00
|
|
|
proto_tree_add_item(dsa_tree, hf_dsa_req_message_type, tvb, offset, 1, ENC_BIG_ENDIAN);
|
2007-05-25 23:40:42 +00:00
|
|
|
/* move to next field */
|
|
|
|
offset++;
|
|
|
|
/* display the Transaction ID */
|
2011-10-06 14:46:34 +00:00
|
|
|
proto_tree_add_item(dsa_tree, hf_dsa_transaction_id, tvb, offset, 2, ENC_BIG_ENDIAN);
|
2007-05-25 23:40:42 +00:00
|
|
|
/* move to next field */
|
|
|
|
offset += 2;
|
|
|
|
/* process DSA-REQ message TLV Encode Information */
|
|
|
|
wimax_common_tlv_encoding_decoder(tvb_new_subset(tvb, offset, (tvb_len - offset), (tvb_len - offset)), pinfo, dsa_tree);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void dissect_mac_mgmt_msg_dsa_rsp_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
|
|
{
|
|
|
|
guint offset = 0;
|
|
|
|
guint tvb_len, payload_type;
|
|
|
|
proto_item *dsa_item = NULL;
|
|
|
|
proto_tree *dsa_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 DSA RSP */
|
|
|
|
if(payload_type != MAC_MGMT_MSG_DSA_RSP)
|
|
|
|
return;
|
2007-05-27 18:33:13 +00:00
|
|
|
/* Get the tvb reported length */
|
|
|
|
tvb_len = tvb_reported_length(tvb);
|
2007-05-25 23:40:42 +00:00
|
|
|
/* display MAC message type */
|
2009-08-04 19:01:34 +00:00
|
|
|
dsa_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_dsa_decoder, tvb, offset, tvb_len,
|
|
|
|
"%s (%u bytes)", val_to_str(payload_type, vals_dsa_msgs, "Unknown"), tvb_len);
|
2007-05-25 23:40:42 +00:00
|
|
|
/* add MAC DSx subtree */
|
|
|
|
dsa_tree = proto_item_add_subtree(dsa_item, ett_mac_mgmt_msg_dsa_rsp_decoder);
|
|
|
|
/* Decode and display the Uplink Channel Descriptor (UCD) */
|
|
|
|
/* display the Message Type */
|
2011-10-06 14:46:34 +00:00
|
|
|
proto_tree_add_item(dsa_tree, hf_dsa_rsp_message_type, tvb, offset, 1, ENC_BIG_ENDIAN);
|
2007-05-25 23:40:42 +00:00
|
|
|
/* move to next field */
|
|
|
|
offset++;
|
|
|
|
/* display the Transaction ID */
|
2011-10-06 14:46:34 +00:00
|
|
|
proto_tree_add_item(dsa_tree, hf_dsa_transaction_id, tvb, offset, 2, ENC_BIG_ENDIAN);
|
2007-05-25 23:40:42 +00:00
|
|
|
/* move to next field */
|
|
|
|
offset += 2;
|
|
|
|
/* display the Confirmation Code */
|
2011-10-06 14:46:34 +00:00
|
|
|
proto_tree_add_item(dsa_tree, hf_dsa_confirmation_code, tvb, offset, 1, ENC_BIG_ENDIAN);
|
2007-05-25 23:40:42 +00:00
|
|
|
/* move to next field */
|
|
|
|
offset++;
|
|
|
|
/* process DSA RSP message TLV Encode Information */
|
|
|
|
wimax_common_tlv_encoding_decoder(tvb_new_subset(tvb, offset, (tvb_len - offset), (tvb_len - offset)), pinfo, dsa_tree);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void dissect_mac_mgmt_msg_dsa_ack_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
|
|
{
|
|
|
|
guint offset = 0;
|
|
|
|
guint tvb_len, payload_type;
|
|
|
|
proto_item *dsa_item = NULL;
|
|
|
|
proto_tree *dsa_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 DSA ACK */
|
|
|
|
if(payload_type != MAC_MGMT_MSG_DSA_ACK)
|
|
|
|
return;
|
2007-05-27 18:33:13 +00:00
|
|
|
/* Get the tvb reported length */
|
|
|
|
tvb_len = tvb_reported_length(tvb);
|
2007-05-25 23:40:42 +00:00
|
|
|
/* display MAC message type */
|
2009-08-04 19:01:34 +00:00
|
|
|
dsa_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_dsa_decoder, tvb, offset, tvb_len,
|
|
|
|
"%s (%u bytes)", val_to_str(payload_type, vals_dsa_msgs, "Unknown"), tvb_len);
|
2007-05-25 23:40:42 +00:00
|
|
|
/* add MAC DSx subtree */
|
|
|
|
dsa_tree = proto_item_add_subtree(dsa_item, ett_mac_mgmt_msg_dsa_ack_decoder);
|
|
|
|
/* Decode and display the Uplink Channel Descriptor (UCD) */
|
|
|
|
/* display the Message Type */
|
2011-10-06 14:46:34 +00:00
|
|
|
proto_tree_add_item(dsa_tree, hf_dsa_ack_message_type, tvb, offset, 1, ENC_BIG_ENDIAN);
|
2007-05-25 23:40:42 +00:00
|
|
|
/* move to next field */
|
|
|
|
offset++;
|
|
|
|
/* display the Transaction ID */
|
2011-10-06 14:46:34 +00:00
|
|
|
proto_tree_add_item(dsa_tree, hf_dsa_transaction_id, tvb, offset, 2, ENC_BIG_ENDIAN);
|
2007-05-25 23:40:42 +00:00
|
|
|
/* move to next field */
|
|
|
|
offset += 2;
|
|
|
|
/* display the Confirmation Code */
|
2011-10-06 14:46:34 +00:00
|
|
|
proto_tree_add_item(dsa_tree, hf_dsa_confirmation_code, tvb, offset, 1, ENC_BIG_ENDIAN);
|
2007-05-25 23:40:42 +00:00
|
|
|
/* move to next field */
|
|
|
|
offset++;
|
|
|
|
/* process DSA-REQ message TLV Encode Information */
|
|
|
|
wimax_common_tlv_encoding_decoder(tvb_new_subset(tvb, offset, (tvb_len - offset), (tvb_len - offset)), pinfo, dsa_tree);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2009-08-04 19:01:34 +00:00
|
|
|
/* Register Wimax Mac Payload Protocol and Dissector */
|
|
|
|
void proto_register_mac_mgmt_msg_dsa(void)
|
|
|
|
{
|
|
|
|
/* DSx display */
|
|
|
|
static hf_register_info hf[] =
|
|
|
|
{
|
|
|
|
{
|
|
|
|
&hf_dsa_ack_message_type,
|
|
|
|
{
|
|
|
|
"MAC Management Message Type", "wmx.macmgtmsgtype.dsa_ack",
|
|
|
|
FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL
|
|
|
|
}
|
|
|
|
},
|
|
|
|
{
|
|
|
|
&hf_dsa_req_message_type,
|
|
|
|
{
|
|
|
|
"MAC Management Message Type", "wmx.macmgtmsgtype.dsa_req",
|
|
|
|
FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL
|
|
|
|
}
|
|
|
|
},
|
|
|
|
{
|
|
|
|
&hf_dsa_rsp_message_type,
|
|
|
|
{
|
|
|
|
"MAC Management Message Type", "wmx.macmgtmsgtype.dsa_rsp",
|
|
|
|
FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL
|
|
|
|
}
|
|
|
|
},
|
|
|
|
{
|
|
|
|
&hf_dsa_confirmation_code,
|
|
|
|
{
|
|
|
|
"Confirmation code", "wmx.dsa.confirmation_code",
|
|
|
|
FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL
|
|
|
|
}
|
|
|
|
},
|
|
|
|
{
|
|
|
|
&hf_dsa_transaction_id,
|
|
|
|
{
|
|
|
|
"Transaction ID", "wmx.dsa.transaction_id",
|
|
|
|
FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL
|
|
|
|
}
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
|
|
|
/* Setup protocol subtree array */
|
|
|
|
static gint *ett[] =
|
|
|
|
{
|
|
|
|
&ett_mac_mgmt_msg_dsa_req_decoder,
|
|
|
|
&ett_mac_mgmt_msg_dsa_rsp_decoder,
|
|
|
|
&ett_mac_mgmt_msg_dsa_ack_decoder,
|
|
|
|
};
|
|
|
|
|
|
|
|
proto_mac_mgmt_msg_dsa_decoder = proto_register_protocol (
|
2013-09-22 00:50:24 +00:00
|
|
|
"WiMax DSA Messages", /* name */
|
|
|
|
"WiMax DSA", /* short name */
|
|
|
|
"wmx.dsa" /* abbrev */
|
2009-08-04 19:01:34 +00:00
|
|
|
);
|
|
|
|
|
|
|
|
proto_register_field_array(proto_mac_mgmt_msg_dsa_decoder, hf, array_length(hf));
|
|
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
|
|
}
|
2013-09-22 00:50:24 +00:00
|
|
|
|
|
|
|
void
|
|
|
|
proto_reg_handoff_mac_mgmt_msg_dsa (void)
|
|
|
|
{
|
|
|
|
dissector_handle_t dsa_handle;
|
|
|
|
|
|
|
|
dsa_handle = create_dissector_handle(dissect_mac_mgmt_msg_dsa_req_decoder, proto_mac_mgmt_msg_dsa_decoder);
|
|
|
|
dissector_add_uint("wmx.mgmtmsg", MAC_MGMT_MSG_DSA_REQ, dsa_handle);
|
|
|
|
|
|
|
|
dsa_handle = create_dissector_handle(dissect_mac_mgmt_msg_dsa_rsp_decoder, proto_mac_mgmt_msg_dsa_decoder);
|
|
|
|
dissector_add_uint("wmx.mgmtmsg", MAC_MGMT_MSG_DSA_RSP, dsa_handle);
|
|
|
|
|
|
|
|
dsa_handle = create_dissector_handle(dissect_mac_mgmt_msg_dsa_ack_decoder, proto_mac_mgmt_msg_dsa_decoder);
|
|
|
|
dissector_add_uint("wmx.mgmtmsg", MAC_MGMT_MSG_DSA_ACK, dsa_handle);
|
|
|
|
}
|