UDPSerializer Class Reference

#include <UDPSerializer.h>

List of all members.

Public Member Functions
	UDPSerializer ()
int	serialize (const UDPPacket *pkt, unsigned char *buf, unsigned int bufsize)
void	parse (const unsigned char *buf, unsigned int bufsize, UDPPacket *pkt)

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Detailed Description

Converts between UDPPacket and binary (network byte order) UDP header.

Definition at line 28 of file UDPSerializer.h.

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Constructor & Destructor Documentation

UDPSerializer::UDPSerializer

(

)

[inline]

Definition at line 31 of file UDPSerializer.h.

{}

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Member Function Documentation

void UDPSerializer::parse	(	const unsigned char *	buf,
		unsigned int	bufsize,
		UDPPacket *	pkt
	)

Puts a packet sniffed from the wire into an UDPPacket.

Definition at line 53 of file UDPSerializer.cc.

{

    struct udphdr *udphdr = (struct udphdr*) buf;

    dest->setSourcePort(ntohs(udphdr->uh_sport));
    dest->setDestinationPort(ntohs(udphdr->uh_dport));
    dest->setByteLength(8);
    cPacket *encapPacket = new cPacket("Payload-from-wire");
    encapPacket->setByteLength(ntohs(udphdr->uh_ulen) - sizeof(struct udphdr));
    dest->encapsulate(encapPacket);
    dest->setName(encapPacket->getName());
}

int UDPSerializer::serialize	(	const UDPPacket *	pkt,
		unsigned char *	buf,
		unsigned int	bufsize
	)

Serializes an UDPPacket for transmission on the wire. Returns the length of data written into buffer.

Definition at line 40 of file UDPSerializer.cc.

{
    struct udphdr *udphdr = (struct udphdr *) (buf);
    int packetLength;

    packetLength = pkt->getByteLength();
    udphdr->uh_sport = htons(pkt->getSourcePort());
    udphdr->uh_dport = htons(pkt->getDestinationPort());
    udphdr->uh_ulen  = htons(packetLength);
    udphdr->uh_sum   = TCPIPchecksum::checksum(buf, packetLength);
    return packetLength;
}

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

• UDPSerializer.h
• UDPSerializer.cc