2 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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3 * All rights reserved.
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5 * Redistribution and use in source and binary forms, with or without modification,
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6 * are permitted provided that the following conditions are met:
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8 * 1. Redistributions of source code must retain the above copyright notice,
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9 * this list of conditions and the following disclaimer.
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10 * 2. Redistributions in binary form must reproduce the above copyright notice,
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11 * this list of conditions and the following disclaimer in the documentation
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12 * and/or other materials provided with the distribution.
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13 * 3. The name of the author may not be used to endorse or promote products
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14 * derived from this software without specific prior written permission.
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16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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19 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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21 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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27 * This file is part of the lwIP TCP/IP stack.
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29 * Author: Adam Dunkels <adam@sics.se>
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32 #ifndef __LWIP_IP_H__
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33 #define __LWIP_IP_H__
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35 #include "lwip/opt.h"
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36 #include "lwip/def.h"
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37 #include "lwip/pbuf.h"
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38 #include "lwip/ip_addr.h"
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40 #include "lwip/err.h"
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44 #define IP_PROTO_ICMP 58
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45 #define IP_PROTO_UDP 17
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46 #define IP_PROTO_UDPLITE 170
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47 #define IP_PROTO_TCP 6
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49 /* This is passed as the destination address to ip_output_if (not
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50 to ip_output), meaning that an IP header already is constructed
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51 in the pbuf. This is used when TCP retransmits. */
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54 #endif /* IP_HDRINCL */
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55 #define IP_HDRINCL NULL
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58 /* The IPv6 header. */
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60 #if BYTE_ORDER == LITTLE_ENDIAN
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61 u8_t tclass1:4, v:4;
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62 u8_t flow1:4, tclass2:4;
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64 u8_t v:4, tclass1:4;
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65 u8_t tclass2:8, flow1:4;
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68 u16_t len; /* payload length */
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69 u8_t nexthdr; /* next header */
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70 u8_t hoplim; /* hop limit (TTL) */
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71 struct ip_addr src, dest; /* source and destination IP addresses */
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76 #include "lwip/netif.h"
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78 struct netif *ip_route(struct ip_addr *dest);
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80 void ip_input(struct pbuf *p, struct netif *inp);
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82 /* source and destination addresses in network byte order, please */
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83 err_t ip_output(struct pbuf *p, struct ip_addr *src, struct ip_addr *dest,
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84 unsigned char ttl, unsigned char proto);
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86 err_t ip_output_if(struct pbuf *p, struct ip_addr *src, struct ip_addr *dest,
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87 unsigned char ttl, unsigned char proto,
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88 struct netif *netif);
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91 void ip_debug_print(struct pbuf *p);
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92 #endif /* IP_DEBUG */
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94 #endif /* __LWIP_IP_H__ */
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