132 lines
4.7 KiB
C
132 lines
4.7 KiB
C
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/*
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* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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* Author: Adam Dunkels <adam@sics.se>
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*
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*/
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#ifndef __LWIP_RAW_H__
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#define __LWIP_RAW_H__
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#include "lwip/opt.h"
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#if LWIP_RAW /* don't build if not configured for use in lwipopts.h */
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#include "lwip/pbuf.h"
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#include "lwip/def.h"
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#include "lwip/ip.h"
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#include "lwip/ip_addr.h"
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#include "lwip/ip6_addr.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct raw_pcb;
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/** Function prototype for raw pcb receive callback functions.
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* @param arg user supplied argument (raw_pcb.recv_arg)
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* @param pcb the raw_pcb which received data
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* @param p the packet buffer that was received
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* @param addr the remote IP address from which the packet was received
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* @return 1 if the packet was 'eaten' (aka. deleted),
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* 0 if the packet lives on
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* If returning 1, the callback is responsible for freeing the pbuf
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* if it's not used any more.
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*/
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typedef u8_t (*raw_recv_fn)(void *arg, struct raw_pcb *pcb, struct pbuf *p,
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ip_addr_t *addr);
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#if LWIP_IPV6
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/** Function prototype for raw pcb IPv6 receive callback functions.
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* @param arg user supplied argument (raw_pcb.recv_arg)
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* @param pcb the raw_pcb which received data
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* @param p the packet buffer that was received
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* @param addr the remote IPv6 address from which the packet was received
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* @return 1 if the packet was 'eaten' (aka. deleted),
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* 0 if the packet lives on
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* If returning 1, the callback is responsible for freeing the pbuf
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* if it's not used any more.
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*/
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typedef u8_t (*raw_recv_ip6_fn)(void *arg, struct raw_pcb *pcb, struct pbuf *p,
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ip6_addr_t *addr);
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#endif /* LWIP_IPV6 */
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#if LWIP_IPV6
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#define RAW_PCB_RECV_IP6 raw_recv_ip6_fn ip6;
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#else
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#define RAW_PCB_RECV_IP6
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#endif /* LWIP_IPV6 */
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struct raw_pcb {
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/* Common members of all PCB types */
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IP_PCB;
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struct raw_pcb *next;
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u8_t protocol;
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/** receive callback function */
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union {
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raw_recv_fn ip4;
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RAW_PCB_RECV_IP6
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} recv;
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/* user-supplied argument for the recv callback */
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void *recv_arg;
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};
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/* The following functions is the application layer interface to the
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RAW code. */
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struct raw_pcb * raw_new (u8_t proto);
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void raw_remove (struct raw_pcb *pcb);
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err_t raw_bind (struct raw_pcb *pcb, ip_addr_t *ipaddr);
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err_t raw_connect (struct raw_pcb *pcb, ip_addr_t *ipaddr);
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void raw_recv (struct raw_pcb *pcb, raw_recv_fn recv, void *recv_arg);
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err_t raw_sendto (struct raw_pcb *pcb, struct pbuf *p, ip_addr_t *ipaddr);
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err_t raw_send (struct raw_pcb *pcb, struct pbuf *p);
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#if LWIP_IPV6
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struct raw_pcb * raw_new_ip6 (u8_t proto);
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#define raw_bind_ip6(pcb, ip6addr) raw_bind(pcb, ip6_2_ip(ip6addr))
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#define raw_connect_ip6(pcb, ip6addr) raw_connect(pcb, ip6_2_ip(ip6addr))
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#define raw_recv_ip6(pcb, recv_ip6_fn, recv_arg) raw_recv(pcb, (raw_recv_fn)recv_ip6_fn, recv_arg)
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#define raw_sendto_ip6(pcb, pbuf, ip6addr) raw_sendto(pcb, pbuf, ip6_2_ip(ip6addr))
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#endif /* LWIP_IPV6 */
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/* The following functions are the lower layer interface to RAW. */
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u8_t raw_input (struct pbuf *p, struct netif *inp);
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#define raw_init() /* Compatibility define, not init needed. */
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#ifdef __cplusplus
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}
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#endif
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#endif /* LWIP_RAW */
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#endif /* __LWIP_RAW_H__ */
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