| Travis Geiselbrecht | 1d0df69 | 2008-09-01 02:26:09 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2001-2004 Swedish Institute of Computer Science. |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without modification, |
| 6 | * are permitted provided that the following conditions are met: |
| 7 | * |
| 8 | * 1. Redistributions of source code must retain the above copyright notice, |
| 9 | * this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| 11 | * this list of conditions and the following disclaimer in the documentation |
| 12 | * and/or other materials provided with the distribution. |
| 13 | * 3. The name of the author may not be used to endorse or promote products |
| 14 | * derived from this software without specific prior written permission. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 18 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT |
| 19 | * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| 20 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT |
| 21 | * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 22 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 23 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| 24 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY |
| 25 | * OF SUCH DAMAGE. |
| 26 | * |
| 27 | * This file is part of the lwIP TCP/IP stack. |
| 28 | * |
| 29 | * Author: Adam Dunkels <adam@sics.se> |
| 30 | * |
| 31 | */ |
| 32 | #ifndef __LWIP_IP_H__ |
| 33 | #define __LWIP_IP_H__ |
| 34 | |
| 35 | #include "lwip/opt.h" |
| 36 | #include "lwip/def.h" |
| 37 | #include "lwip/pbuf.h" |
| 38 | #include "lwip/ip_addr.h" |
| 39 | |
| 40 | #include "lwip/err.h" |
| 41 | |
| 42 | #define IP_HLEN 40 |
| 43 | |
| 44 | #define IP_PROTO_ICMP 58 |
| 45 | #define IP_PROTO_UDP 17 |
| 46 | #define IP_PROTO_UDPLITE 170 |
| 47 | #define IP_PROTO_TCP 6 |
| 48 | |
| 49 | /* This is passed as the destination address to ip_output_if (not |
| 50 | to ip_output), meaning that an IP header already is constructed |
| 51 | in the pbuf. This is used when TCP retransmits. */ |
| 52 | #ifdef IP_HDRINCL |
| 53 | #undef IP_HDRINCL |
| 54 | #endif /* IP_HDRINCL */ |
| 55 | #define IP_HDRINCL NULL |
| 56 | |
| 57 | |
| 58 | /* The IPv6 header. */ |
| 59 | struct ip_hdr { |
| 60 | #if BYTE_ORDER == LITTLE_ENDIAN |
| 61 | u8_t tclass1:4, v:4; |
| 62 | u8_t flow1:4, tclass2:4; |
| 63 | #else |
| 64 | u8_t v:4, tclass1:4; |
| 65 | u8_t tclass2:8, flow1:4; |
| 66 | #endif |
| 67 | u16_t flow2; |
| 68 | u16_t len; /* payload length */ |
| 69 | u8_t nexthdr; /* next header */ |
| 70 | u8_t hoplim; /* hop limit (TTL) */ |
| 71 | struct ip_addr src, dest; /* source and destination IP addresses */ |
| 72 | }; |
| 73 | |
| 74 | void ip_init(void); |
| 75 | |
| 76 | #include "lwip/netif.h" |
| 77 | |
| 78 | struct netif *ip_route(struct ip_addr *dest); |
| 79 | |
| 80 | void ip_input(struct pbuf *p, struct netif *inp); |
| 81 | |
| 82 | /* source and destination addresses in network byte order, please */ |
| 83 | err_t ip_output(struct pbuf *p, struct ip_addr *src, struct ip_addr *dest, |
| 84 | u8_t ttl, u8_t proto); |
| 85 | |
| 86 | err_t ip_output_if(struct pbuf *p, struct ip_addr *src, struct ip_addr *dest, |
| 87 | u8_t ttl, u8_t proto, |
| 88 | struct netif *netif); |
| 89 | |
| 90 | #if IP_DEBUG |
| 91 | void ip_debug_print(struct pbuf *p); |
| 92 | #endif /* IP_DEBUG */ |
| 93 | |
| 94 | #endif /* __LWIP_IP_H__ */ |
| 95 | |
| 96 | |