UDP (User Datagram Protocol) datagram: PHP parsing library

UDP is a simple stateless transport layer (AKA OSI layer 4) protocol, one of the core Internet protocols. It provides source and destination ports, basic checksumming, but provides not guarantees of delivery, order of packets, or duplicate delivery.

KS implementation details

License: CC0-1.0

This page hosts a formal specification of UDP (User Datagram Protocol) datagram using Kaitai Struct. This specification can be automatically translated into a variety of programming languages to get a parsing library.

PHP source code to parse UDP (User Datagram Protocol) datagram

UdpDatagram.php

<?php
// This is a generated file! Please edit source .ksy file and use kaitai-struct-compiler to rebuild

/**
 * UDP is a simple stateless transport layer (AKA OSI layer 4)
 * protocol, one of the core Internet protocols. It provides source and
 * destination ports, basic checksumming, but provides not guarantees
 * of delivery, order of packets, or duplicate delivery.
 */

class UdpDatagram extends \Kaitai\Struct\Struct {
    public function __construct(\Kaitai\Struct\Stream $_io, \Kaitai\Struct\Struct $_parent = null, \UdpDatagram $_root = null) {
        parent::__construct($_io, $_parent, $_root);
        $this->_read();
    }

    private function _read() {
        $this->_m_srcPort = $this->_io->readU2be();
        $this->_m_dstPort = $this->_io->readU2be();
        $this->_m_length = $this->_io->readU2be();
        $this->_m_checksum = $this->_io->readU2be();
        $this->_m_body = $this->_io->readBytesFull();
    }
    protected $_m_srcPort;
    protected $_m_dstPort;
    protected $_m_length;
    protected $_m_checksum;
    protected $_m_body;
    public function srcPort() { return $this->_m_srcPort; }
    public function dstPort() { return $this->_m_dstPort; }
    public function length() { return $this->_m_length; }
    public function checksum() { return $this->_m_checksum; }
    public function body() { return $this->_m_body; }
}