/*
* $Id$
*
* Copyright (C) 2003-2014 JNode.org
*
* 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 2.1 of the License, or
* (at your option) any later version.
*
* This 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.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; If not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
package org.jnode.net.ipv4.bootp;
import java.net.DatagramPacket;
import org.jnode.net.SocketBuffer;
/**
* RFC 1542.
*
* @author markhale
*/
public class BOOTPMessage {
/** Size of the BOOTP vendor-specific area (64 bytes) */
public static final int OPTIONS_SIZE = 64;
/** Size of the BOOTP message (300 bytes) */
public static final int SIZE = BOOTPHeader.SIZE + OPTIONS_SIZE;
private final BOOTPHeader header;
/**
* Create a new message
*/
public BOOTPMessage(BOOTPHeader hdr) {
header = hdr;
}
public BOOTPMessage(SocketBuffer skbuf) {
this(new BOOTPHeader(skbuf));
}
public BOOTPMessage(DatagramPacket packet) {
this(new BOOTPHeader(
new SocketBuffer(packet.getData(), packet.getOffset(), packet.getLength())));
}
public BOOTPHeader getHeader() {
return header;
}
/**
* Gets this message as a DatagramPacket
*/
public DatagramPacket toDatagramPacket() {
final SocketBuffer skbuf = new SocketBuffer();
skbuf.insert(OPTIONS_SIZE);
header.prefixTo(skbuf);
final byte[] data = skbuf.toByteArray();
return new DatagramPacket(data, data.length);
}
}