2 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
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
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16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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27 * This file is part of the lwIP TCP/IP stack.
29 * Author: Adam Dunkels <adam@sics.se>
37 #include "lwip/pbuf.h"
38 #include "lwip/ip_addr.h"
48 #define IP_PROTO_ICMP 58
49 #define IP_PROTO_UDP 17
50 #define IP_PROTO_UDPLITE 136
51 #define IP_PROTO_TCP 6
53 /* This is passed as the destination address to ip_output_if (not
54 to ip_output), meaning that an IP header already is constructed
55 in the pbuf. This is used when TCP retransmits. */
58 #endif /* IP_HDRINCL */
59 #define IP_HDRINCL NULL
61 #if LWIP_NETIF_HWADDRHINT
62 #define IP_PCB_ADDRHINT ;u8_t addr_hint
64 #define IP_PCB_ADDRHINT
65 #endif /* LWIP_NETIF_HWADDRHINT */
67 /* This is the common part of all PCB types. It needs to be at the
68 beginning of a PCB type definition. It is located here so that
69 changes to this common part are made in one location instead of
70 having to change all PCB structs. */
71 #define IP_PCB struct ip_addr local_ip; \
72 struct ip_addr remote_ip; \
73 /* Socket options */ \
75 /* Type Of Service */ \
79 /* link layer address resolution hint */ \
83 /* The IPv6 header. */
85 #if BYTE_ORDER == LITTLE_ENDIAN
87 u8_t flow1:4, tclass2:4;
90 u8_t tclass2:8, flow1:4;
93 u16_t len; /* payload length */
94 u8_t nexthdr; /* next header */
95 u8_t hoplim; /* hop limit (TTL) */
96 struct ip_addr src, dest; /* source and destination IP addresses */
99 #define IPH_PROTO(hdr) (iphdr->nexthdr)
103 #include "lwip/netif.h"
105 struct netif *ip_route(struct ip_addr *dest);
107 void ip_input(struct pbuf *p, struct netif *inp);
109 /* source and destination addresses in network byte order, please */
110 err_t ip_output(struct pbuf *p, struct ip_addr *src, struct ip_addr *dest,
111 u8_t ttl, u8_t proto);
113 err_t ip_output_if(struct pbuf *p, struct ip_addr *src, struct ip_addr *dest,
114 u8_t ttl, u8_t proto,
115 struct netif *netif);
118 void ip_debug_print(struct pbuf *p);
119 #endif /* IP_DEBUG */
125 #endif /* __LWIP_IP_H__ */