inet::serializer::ARPSerializer Class Reference

Converts between ARPPacket and binary (network byte order) ARP header. More...

#include <ARPSerializer.h>

Inheritance diagram for inet::serializer::ARPSerializer:

Public Member Functions
	ARPSerializer (const char *name=nullptr)
int	serialize (const ARPPacket *pkt, unsigned char *buf, unsigned int bufsize)
	Serializes an ARPPacket for transmission on the wire. More...
ARPPacket *	parse (const unsigned char *buf, unsigned int bufsize)
	Puts a packet sniffed from the wire into an ARPPacket. More...
Public Member Functions inherited from inet::serializer::SerializerBase
	SerializerBase (const char *name=nullptr)
void	serializePacket (const cPacket *pkt, Buffer &b, Context &context)
cPacket *	deserializePacket (const Buffer &b, Context &context)

Protected Member Functions
virtual void	serialize (const cPacket *pkt, Buffer &b, Context &context) override
	Serializes an ARPPacket for transmission on the wire. More...
virtual cPacket *	deserialize (const Buffer &b, Context &context) override
	Puts a packet sniffed from the wire into an ARPPacket. More...
MACAddress	readMACAddress (const Buffer &b, unsigned int size)
IPv4Address	readIPv4Address (const Buffer &b, unsigned int size)

Additional Inherited Members
Static Public Member Functions inherited from inet::serializer::SerializerBase
static SerializerBase &	lookupSerializer (const cPacket *pkt, Context &context, ProtocolGroup group, int id)
static void	lookupAndSerialize (const cPacket *pkt, Buffer &b, Context &context, ProtocolGroup group, int id, unsigned int maxLength=(unsigned int)(-1))
static SerializerBase &	lookupDeserializer (Context &context, ProtocolGroup group, int id)
static cPacket *	lookupAndDeserialize (const Buffer &b, Context &context, ProtocolGroup group, int id, unsigned int maxLength=(unsigned int)(-1))

Detailed Description

Converts between ARPPacket and binary (network byte order) ARP header.

Constructor & Destructor Documentation

inet::serializer::ARPSerializer::ARPSerializer ( const char *  name = nullptr )

inline

: SerializerBase(name) {}

Member Function Documentation

cPacket * inet::serializer::ARPSerializer::deserialize ( const Buffer &  b, Context &  context  )

overrideprotectedvirtual

Puts a packet sniffed from the wire into an ARPPacket.

Implements inet::serializer::SerializerBase.

{
    ARPPacket *pkt = new ARPPacket("parsed ARP");

    uint16_t x;
    x = b.readUint16();   // 1
    if (x != 1)
        pkt->setBitError(true);
    x = b.readUint16();   // ETHERTYPE_IP
    if (x != ETHERTYPE_IPv4)
        pkt->setBitError(true);
    uint8_t n = b.readByte();     //ar_hln
    uint8_t m = b.readByte();     //ar_pln
    pkt->setOpcode(b.readUint16());   // arphdr->ar_op
    MACAddress temp;
    pkt->setSrcMACAddress(readMACAddress(b, n));
    pkt->setSrcIPAddress(readIPv4Address(b, m));    // ar_spa
    pkt->setDestMACAddress(readMACAddress(b, n));
    pkt->setDestIPAddress(readIPv4Address(b, m));   // ar_tpa
    pkt->setByteLength(b.getPos());
    return pkt;
}

ARPPacket* inet::serializer::ARPSerializer::parse ( const unsigned char *  buf, unsigned int  bufsize  )

inline

Puts a packet sniffed from the wire into an ARPPacket.

        { Buffer b(const_cast<unsigned char *>(buf), bufsize); Context c; return check_and_cast<ARPPacket *>(deserialize(b, c)); }

IPv4Address inet::serializer::ARPSerializer::readIPv4Address ( const Buffer &  b, unsigned int  size  )

protected

Referenced by deserialize().

{
    unsigned int curpos = b.getPos();
    IPv4Address addr = b.readIPv4Address();
    b.seek(curpos + size);
    return addr;
}

MACAddress inet::serializer::ARPSerializer::readMACAddress ( const Buffer &  b, unsigned int  size  )

protected

Referenced by deserialize().

{
    unsigned int curpos = b.getPos();
    MACAddress addr = b.readMACAddress();
    b.seek(curpos + size);
    return addr;
}

void inet::serializer::ARPSerializer::serialize ( const cPacket *  pkt, Buffer &  b, Context &  context  )

overrideprotectedvirtual

Serializes an ARPPacket for transmission on the wire.

Returns the length of data written into buffer.

Implements inet::serializer::SerializerBase.

{
    const ARPPacket *pkt = check_and_cast<const ARPPacket *>(_pkt);
    b.writeUint16(1); //ethernet
    b.writeUint16(ETHERTYPE_IPv4);
    b.writeByte(ETHER_ADDR_LEN);
    b.writeByte(4);  // size of IPv4 address
    b.writeUint16(pkt->getOpcode());
    b.writeMACAddress(pkt->getSrcMACAddress());
    b.writeIPv4Address(pkt->getSrcIPAddress());
    b.writeMACAddress(pkt->getDestMACAddress());
    b.writeIPv4Address(pkt->getDestIPAddress());
    if (pkt->getEncapsulatedPacket())
        throw cRuntimeError("ARPSerializer: encapsulated packet not supported!");
}

int inet::serializer::ARPSerializer::serialize ( const ARPPacket *  pkt, unsigned char *  buf, unsigned int  bufsize  )

inline

Serializes an ARPPacket for transmission on the wire.

Returns the length of data written into buffer.

        { Buffer b(buf, bufsize); Context c; serialize(pkt, b, c); return b.getPos(); }

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The documentation for this class was generated from the following files:

• ARPSerializer.h
• ARPSerializer.cc