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ph_eigrp.cc
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/*
* Copyright (c) 2001 - 2003
* Sebastian Majewski. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Sebastian Majewski
* and his contributors.
* 4. Neither the name of Sebastian Majewski nor the names of his contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <netz.h>
#include "support.h"
#include "ph_packet.h"
c_string eigrp_packet_handler(c_packet_info packet_info)
{
c_string output_string;
c_eigrp_header header(packet_info.packet);
output_string.add((char*)"EIGRP\t");
output_string.add((char*)"VER %u OPCODE %u ",
header.get_ver(),
header.get_opcode());
switch(header.get_opcode()) {
case EIGRP_OPCODE_UPDATE:
output_string += "(Update)";
break;
case EIGRP_OPCODE_QUERY:
output_string += "(Query)";
break;
case EIGRP_OPCODE_REPLY:
output_string += "(Reply)";
break;
case EIGRP_OPCODE_HELLO:
output_string += "(Hello)";
break;
case EIGRP_OPCODE_IPXSAP:
output_string += "(IPX Sap)";
break;
case EIGRP_OPCODE_SIA_QUERY:
output_string += "(SIA Query)";
break;
case EIGRP_OPCODE_SIA_REPLY:
output_string += "(SIA Reply)";
break;
default:
output_string += "(Unknown)";
}
output_string.add((char*)" AS %u SEQ %u ACK %u\n",
header.get_as(),
header.get_seq(),
header.get_ack());
output_string.add_hex((char*)"\tFLAGS 0x%02X%02X |",
header.get_flags());
if(header.get_flag_init())
{
output_string.add((char*)"INIT|");
}
else
{
output_string.add((char*)" |");
}
if(header.get_flag_cr())
{
output_string.add((char*)" CR |");
}
else
{
output_string.add((char*)" |");
}
output_string.add((char*)" CKSUM %u ", header.get_cksum());
if(!cksum(packet_info.packet, packet_info.packet_len))
{
output_string.add((char*)"(OK)");
}
else
{
output_string.add((char*)"(BAD)");
}
output_string.add((char*)"\n");
u_int i = 0;
while(i < packet_info.packet_len - EIGRP_HEADER_LEN)
{
c_eigrp_tlv tlv(packet_info.packet + EIGRP_HEADER_LEN + i);
output_string.add((char*)"\nTLV\tTYPE %u ",
tlv.get_type());
switch(tlv.get_type())
{
case EIGRP_TLV_TYPE_PARAMETERS:
output_string += "(Parameters)";
break;
case EIGRP_TLV_TYPE_SEQUENCE:
output_string += "(Sequence)";
break;
case EIGRP_TLV_TYPE_SOFTWARE_VERSION:
output_string += "(Software Version)";
break;
case EIGRP_TLV_TYPE_NEXT_MULTICAST_SEQUENCE:
output_string += "(Multicast Sequence)";
break;
case EIGRP_TLV_TYPE_IP_INTERNAL_ROUTE:
output_string += "(Internal Route)";
break;
case EIGRP_TLV_TYPE_IP_EXTERNAL_ROUTE:
output_string += "(External Route)";
break;
case EIGRP_TLV_TYPE_APPLETALK_INTENAL_ROUTE:
output_string += "(Appletalk Internal Route)";
break;
case EIGRP_TLV_TYPE_APPLETALK_EXTERNAL_ROUTE:
output_string += "(Appletalk External Route)";
break;
case EIGRP_TLV_TYPE_APPLETALK_CABLE_CONFIG:
output_string += "(Appletalk Cable Config)";
break;
case EIGRP_TLV_TYPE_IPX_INTERNAL_ROUTE:
output_string += "(IPX Internal Route)";
break;
case EIGRP_TLV_TYPE_IPX_EXTERNAL_ROUTE:
output_string += "(IPX External Route)";
break;
default:
output_string += "(Unknown)";
break;
}
output_string.add((char*)" LEN %u\n",
tlv.get_len());
switch(tlv.get_type())
{
case EIGRP_TLV_TYPE_PARAMETERS: {
c_eigrp_tlv_parameters tlv_parameters(packet_info.packet
+ EIGRP_HEADER_LEN + i);
output_string.add((char*)"\tK1 %u K2 %u K3 %u K4 %u K5 %u HOLD TIME %u\n",
tlv_parameters.get_k1(),
tlv_parameters.get_k2(),
tlv_parameters.get_k3(),
tlv_parameters.get_k4(),
tlv_parameters.get_k5(),
tlv_parameters.get_holdtime());
break;
}
case EIGRP_TLV_TYPE_SOFTWARE_VERSION: {
c_eigrp_tlv_softver tlv_softver(packet_info.packet
+ EIGRP_HEADER_LEN + i);
output_string.add((char*)"\tSOFTWARE VERSION %u.%u %u %u\n",
tlv_softver.get_ver(0),
tlv_softver.get_ver(1),
tlv_softver.get_ver(2),
tlv_softver.get_ver(3));
break;
}
case EIGRP_TLV_TYPE_IP_INTERNAL_ROUTE: {
c_eigrp_tlv_ipintup tlv_ipintup(packet_info.packet
+ EIGRP_HEADER_LEN + i);
string destination_string[16];
conv_ip_str(destination_string, tlv_ipintup.get_destination());
output_string.add((char*)"\tNETWORK %s ",
destination_string);
output_string.add((char*)"/%u",
tlv_ipintup.get_prefixlen());
string nexthop_string[16];
conv_ip_str(nexthop_string, tlv_ipintup.get_nexthop());
output_string.add((char*)" NEXTHOP %s\n",
nexthop_string);
output_string.add(
(char*)"\tDELAY %u BW %u MTU %u HOPCOUNT %u REL %u LOAD %u \n",
tlv_ipintup.get_delay(),
tlv_ipintup.get_bandwidth(),
tlv_ipintup.get_mtu(),
tlv_ipintup.get_hopcount(),
tlv_ipintup.get_reliability(),
tlv_ipintup.get_load());
break;
}
case EIGRP_TLV_TYPE_IP_EXTERNAL_ROUTE: {
c_eigrp_tlv_ipextup tlv_ipextup(packet_info.packet
+ EIGRP_HEADER_LEN + i);
string destination_string[16];
conv_ip_str(destination_string, tlv_ipextup.get_destination());
output_string.add((char*)"\tNETWORK %s ",
destination_string);
output_string.add((char*)"/%u",
tlv_ipextup.get_prefixlen());
string nexthop_string[16];
conv_ip_str(nexthop_string, tlv_ipextup.get_nexthop());
output_string.add((char*)" NEXTHOP %s\n",
nexthop_string);
string orouter_string[16];
conv_ip_str(orouter_string, tlv_ipextup.get_orouter());
output_string.add((char*)"\tOROUTER %s ",
orouter_string);
output_string.add((char*)"OAS %u BW %u ATAG %u EPMETRIC %u \n",
tlv_ipextup.get_oas(),
tlv_ipextup.get_atag(),
tlv_ipextup.get_epmetric());
output_string.add_hex((char*)"\tEPID 0x%02X (",
tlv_ipextup.get_epid());
switch(tlv_ipextup.get_epid())
{
case EIGRP_TLV_IEU_EPID_IGRP:
output_string.add((char*)"IGRP");
break;
case EIGRP_TLV_IEU_EPID_EIGRP:
output_string.add((char*)"EIGRP");
break;
case EIGRP_TLV_IEU_EPID_STATIC:
output_string.add((char*)"STATIC");
break;
case EIGRP_TLV_IEU_EPID_RIP:
output_string.add((char*)"RIP");
break;
case EIGRP_TLV_IEU_EPID_HELLO:
output_string.add((char*)"HELLO");
break;
case EIGRP_TLV_IEU_EPID_OSPF:
output_string.add((char*)"OSPF");
break;
case EIGRP_TLV_IEU_EPID_ISIS:
output_string.add((char*)"ISIS");
break;
case EIGRP_TLV_IEU_EPID_EGP:
output_string.add((char*)"EGP");
break;
case EIGRP_TLV_IEU_EPID_BGP:
output_string.add((char*)"BGP");
break;
case EIGRP_TLV_IEU_EPID_IDRP:
output_string.add((char*)"IDRP");
break;
case EIGRP_TLV_IEU_EPID_CONNECTED:
output_string.add((char*)"IDRP");
break;
default:
output_string.add((char*)"NONE");
}
output_string.add_hex((char*)") FLAGS 0x%02X\n",
tlv_ipextup.get_flags());
output_string.add(
(char*)"\tDELAY %u BW %u MTU %u HOPCOUNT %u REL %u LOAD %u \n",
tlv_ipextup.get_delay(),
tlv_ipextup.get_bandwidth(),
tlv_ipextup.get_mtu(),
tlv_ipextup.get_hopcount(),
tlv_ipextup.get_reliability(),
tlv_ipextup.get_load());
break;
}
}
i += tlv.get_len();
}
output_string += debug(packet_info);
output_string += print_line();
return output_string;
}