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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 methods 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) 2007-2014 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 UANYTUN_seq_window_h_INCLUDED
#define UANYTUN_seq_window_h_INCLUDED
struct seq_win_element_struct {
sender_id_t sender_id_;
seq_nr_t max_;
window_size_t pos_;
u_int8_t* window_;
struct seq_win_element_struct* next_;
};
typedef struct seq_win_element_struct seq_win_element_t;
struct seq_win_struct {
window_size_t size_;
seq_win_element_t* first_;
};
typedef struct seq_win_struct seq_win_t;
int seq_win_init(seq_win_t* win, window_size_t size);
void seq_win_clear(seq_win_t* win);
int seq_win_check_and_add(seq_win_t* win, sender_id_t sender_id, seq_nr_t seq_nr);
void seq_win_print(seq_win_t* win);
#endif
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