Msg File src/inet/networklayer/ldp/LDPPacket.msg

Name	Type	Description
LDP_MESSAGE_TYPES	enum	LDP message types
LDP_STATUS_TYPES	enum	(no description)
FEC_TLV	struct	(no description)
LDPPacket	packet	Base class for LDP packets
LDPLabelMapping	packet	LDP Label Mapping Message
LDPLabelRequest	packet	LDP Label Request Message
LDPHello	packet	LDP Hello Message
LDPNotify	packet	LDP notification message
LDPIni	packet	LDP Ini Message
LDPAddress	packet	LDP Address Message

Source code:

//
// This library is free software, you can redistribute it
// and/or modify
// it under  the terms of the GNU Lesser General Public License
// as published by the Free Software Foundation;
// either version 2 of the License, or any later version.
// The library 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 Lesser General Public License for more details.
//


cplusplus {{
#include "inet/networklayer/contract/ipv4/IPv4Address.h"

// base header: version, length, LSR ID, Label space
#define LDP_BASEHEADER_BYTES  10

// FIXME: the length below is just a guess. TBD find lengths for individual TLVs
// making up different LDP packet types, and determine length for each packet type
#define LDP_HEADER_BYTES  (LDP_BASEHEADER_BYTES+20)
}}

namespace inet;

class noncobject IPv4Address;

//
// LDP message types
//
enum LDP_MESSAGE_TYPES
{

    NOTIFICATION = 10;
    HELLO = 11;
    INITIALIZATION = 12;
    KEEP_ALIVE = 13;
    ADDRESS = 14;
    ADDRESS_WITHDRAW = 15;
    LABEL_MAPPING = 16;
    LABEL_REQUEST = 17;
    LABEL_WITHDRAW = 18;
    LABEL_RELEASE = 19;
    UNKNOWN = 20;
}

enum LDP_STATUS_TYPES
{

    NO_ROUTE = 13;
}

struct FEC_TLV
{
    IPv4Address addr;
    int length;
}

//
// Base class for LDP packets
//
packet LDPPacket
{
    int type;
    IPv4Address senderAddress;
    IPv4Address receiverAddress;
}


//
// LDP Label Mapping Message
//
packet LDPLabelMapping extends LDPPacket
{
    FEC_TLV fec;
    int label;
}

//
// LDP Label Request Message
//
packet LDPLabelRequest extends LDPPacket
{
    FEC_TLV fec;
}


//
// LDP Hello Message
//
packet LDPHello extends LDPPacket
{
    double holdTime;
    bool tbit;
    bool rbit;
}

//
// LDP notification message
//
packet LDPNotify extends LDPPacket
{
    int status;
    FEC_TLV fec;
}

//
// LDP Ini Message
//
//# FIXME currently unused
packet LDPIni extends LDPPacket
{
    double keepAliveTime;
    bool abit;
    bool dbit;
    int pvLim;
    string receiverLDPIdentifier;
}

//
// LDP Address Message
//
//# FIXME currently unused
packet LDPAddress extends LDPPacket
{
    bool isWithdraw;
    string family;
    string addresses[];
}