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/*

 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.

 * 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.

 *

 * This file is part of the lwIP TCP/IP stack.

 *

 * Author: Adam Dunkels <adam@sics.se>

 *

 */

#ifndef __LWIP_RAW_H__

#define __LWIP_RAW_H__

#include "lwip/opt.h"

#if LWIP_RAW /* don't build if not configured for use in lwipopts.h */

#include "lwip/pbuf.h"

#include "lwip/inet.h"

#include "lwip/ip.h"

#include "lwip/ip_addr.h"

#ifdef __cplusplus

extern "C" {

#endif

struct raw_pcb {

/* Common members of all PCB types */

  IP_PCB;

  struct raw_pcb *next;

  u8_t protocol;

  /* receive callback function

   * @param arg user supplied argument (raw_pcb.recv_arg)

   * @param pcb the raw_pcb which received data

   * @param p the packet buffer that was received

   * @param addr the remote IP address from which the packet was received

   * @return 1 if the packet was 'eaten' (aka. deleted),

   *         0 if the packet lives on

   * If returning 1, the callback is responsible for freeing the pbuf

   * if it's not used any more.

   */

  u8_t (* recv)(void *arg, struct raw_pcb *pcb, struct pbuf *p,

    struct ip_addr *addr);

  /* user-supplied argument for the recv callback */

  void *recv_arg;

};

/* The following functions is the application layer interface to the

   RAW code. */

struct raw_pcb * raw_new        (u8_t proto);

void             raw_remove     (struct raw_pcb *pcb);

err_t            raw_bind       (struct raw_pcb *pcb, struct ip_addr *ipaddr);

err_t            raw_connect    (struct raw_pcb *pcb, struct ip_addr *ipaddr);

void             raw_recv       (struct raw_pcb *pcb,

                                 u8_t (* recv)(void *arg, struct raw_pcb *pcb,

                                              struct pbuf *p,

                                              struct ip_addr *addr),

                                 void *recv_arg);

err_t            raw_sendto     (struct raw_pcb *pcb, struct pbuf *p, struct ip_addr *ipaddr);

err_t            raw_send       (struct raw_pcb *pcb, struct pbuf *p);

/* The following functions are the lower layer interface to RAW. */

u8_t             raw_input      (struct pbuf *p, struct netif *inp);

#define raw_init() /* Compatibility define, not init needed. */

#ifdef __cplusplus

}

#endif

#endif /* LWIP_RAW */

#endif /* __LWIP_RAW_H__ */