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/*
* uAnytun
*
* uAnytun is a tiny implementation of SATP. Unlike Anytun which is a full
* featured implementation uAnytun has no support for multiple connections
* or synchronisation. It is a small single threaded implementation intended
* to act as a client on small platforms.
* 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 Christian Pointner <equinox@anytun.org>
*
* This file is part of uAnytun.
*
* uAnytun is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* uAnytun 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 uAnytun. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _PLAIN_PACKET_H_
#define _PLAIN_PACKET_H_
#define PLAIN_PACKET_SIZE_MAX 1600
#define PAYLOAD_TYPE_TAP 0x6558
#define PAYLOAD_TYPE_TUN 0x0000
#define PAYLOAD_TYPE_TUN4 0x0800
#define PAYLOAD_TYPE_TUN6 0x86DD
#define PAYLOAD_TYPE_UNKNOWN 0xFFFF
struct plain_packet_struct {
u_int32_t payload_length_;
union __attribute__ ((__packed__)) {
u_int8_t buf_[PLAIN_PACKET_SIZE_MAX];
payload_type_t payload_type_;
} data_;
};
typedef struct plain_packet_struct plain_packet_t;
void plain_packet_init(plain_packet_t* packet);
u_int32_t plain_packet_get_header_length();
u_int8_t* plain_packet_get_packet(plain_packet_t* packet);
u_int32_t plain_packet_get_length(plain_packet_t* packet);
void plain_packet_set_length(plain_packet_t* packet, u_int32_t len);
u_int8_t* plain_packet_get_payload(plain_packet_t* packet);
u_int32_t plain_packet_get_payload_length(plain_packet_t* packet);
void plain_packet_set_payload_length(plain_packet_t* packet, u_int32_t len);
payload_type_t plain_packet_get_type(plain_packet_t* packet);
void plain_packet_set_type(plain_packet_t* packet, payload_type_t type);
#endif
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