File: tcp_isn.h

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/*
 * Copyright (c) 2016 The MINIX 3 Project.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
 * OF SUCH DAMAGE.
 *
 * Author: David van Moolenbroek <david@minix3.org>
 */

#ifndef LWIP_HDR_CONTRIB_ADDONS_TCP_ISN_H
#define LWIP_HDR_CONTRIB_ADDONS_TCP_ISN_H

#include "lwip/opt.h"
#include "lwip/ip_addr.h"

#ifdef __cplusplus
extern "C" {
#endif

void lwip_init_tcp_isn(u32_t boot_time, const u8_t *secret_16_bytes);
u32_t lwip_hook_tcp_isn(const ip_addr_t *local_ip, u16_t local_port,
                        const ip_addr_t *remote_ip, u16_t remote_port);

#ifdef __cplusplus
}
#endif

#endif /* LWIP_HDR_CONTRIB_ADDONS_TCP_ISN_H */