/* | |
* 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_IP_H__ | |
#define __LWIP_IP_H__ | |
#include "lwip/opt.h" | |
#include "lwip/def.h" | |
#include "lwip/pbuf.h" | |
#include "lwip/ip_addr.h" | |
#include "lwip/err.h" | |
#define IP_HLEN 40 | |
#define IP_PROTO_ICMP 58 | |
#define IP_PROTO_UDP 17 | |
#define IP_PROTO_UDPLITE 170 | |
#define IP_PROTO_TCP 6 | |
/* This is passed as the destination address to ip_output_if (not | |
to ip_output), meaning that an IP header already is constructed | |
in the pbuf. This is used when TCP retransmits. */ | |
#ifdef IP_HDRINCL | |
#undef IP_HDRINCL | |
#endif /* IP_HDRINCL */ | |
#define IP_HDRINCL NULL | |
/* The IPv6 header. */ | |
struct ip_hdr { | |
#if BYTE_ORDER == LITTLE_ENDIAN | |
u8_t tclass1:4, v:4; | |
u8_t flow1:4, tclass2:4; | |
#else | |
u8_t v:4, tclass1:4; | |
u8_t tclass2:8, flow1:4; | |
#endif | |
u16_t flow2; | |
u16_t len; /* payload length */ | |
u8_t nexthdr; /* next header */ | |
u8_t hoplim; /* hop limit (TTL) */ | |
struct ip_addr src, dest; /* source and destination IP addresses */ | |
}; | |
void ip_init(void); | |
#include "lwip/netif.h" | |
struct netif *ip_route(struct ip_addr *dest); | |
void ip_input(struct pbuf *p, struct netif *inp); | |
/* source and destination addresses in network byte order, please */ | |
err_t ip_output(struct pbuf *p, struct ip_addr *src, struct ip_addr *dest, | |
unsigned char ttl, unsigned char proto); | |
err_t ip_output_if(struct pbuf *p, struct ip_addr *src, struct ip_addr *dest, | |
unsigned char ttl, unsigned char proto, | |
struct netif *netif); | |
#if IP_DEBUG | |
void ip_debug_print(struct pbuf *p); | |
#endif /* IP_DEBUG */ | |
#endif /* __LWIP_IP_H__ */ | |