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/*
* anytun
*
* The secure anycast tunneling protocol (satp) defines a protocol used
* for communication between any combination of unicast and anycast
* tunnel endpoints. It has less protocol overhead than IPSec in Tunnel
* mode and allows tunneling of every ETHER TYPE protocol (e.g.
* ethernet, ip, arp ...). satp directly includes cryptography and
* message authentication based on the methodes used by SRTP. It is
* intended to deliver a generic, scaleable and secure solution for
* tunneling and relaying of packets of any protocol.
*
*
* Copyright (C) 2007-2008 Othmar Gsenger, Erwin Nindl,
* Christian Pointner <satp@wirdorange.org>
*
* This file is part of Anytun.
*
* Anytun is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* Anytun 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with anytun. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _PLAIN_PACKET_H_
#define _PLAIN_PACKET_H_
#include "datatypes.h"
#include "buffer.h"
#include "networkAddress.h"
class Cipher;
/**
* plain SATP packet class<br>
* includes payload_type and payload
*/
#define PAYLOAD_TYPE_TAP 0x6558
#define PAYLOAD_TYPE_TUN 0x0000
#define PAYLOAD_TYPE_TUN4 0x0800
#define PAYLOAD_TYPE_TUN6 0x86DD
class PlainPacket : public Buffer
{
public:
/**
* Packet constructor
* @param the length of the payload
* @param allow reallocation of buffer
*/
PlainPacket(u_int32_t payload_length, bool allow_realloc = false);
/**
* Packet destructor
*/
~PlainPacket() {};
/**
* Get the length of the header
* @return the length of the header
*/
static u_int32_t getHeaderLength();
/**
* Get the payload type
* @return the id of the payload type
*/
payload_type_t getPayloadType() const;
/**
* Set the payload type
* @param payload_type payload type id
*/
void setPayloadType(payload_type_t payload_type);
/**
* Get the length of the payload
* @return the length of the payload
*/
u_int32_t getPayloadLength() const;
/**
* Set the length of the payload
* @param length length of the payload
*/
void setPayloadLength(u_int32_t payload_length);
/**
* Get the the payload
* @return the Pointer to the payload
*/
u_int8_t* getPayload();
// NetworkAddress getSrcAddr() const;
NetworkAddress getDstAddr() const;
private:
PlainPacket();
PlainPacket(const PlainPacket &src);
void reinit();
payload_type_t* payload_type_;
u_int8_t* payload_;
};
#endif
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