1 |
583 |
jeremybenn |
/*
|
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 |
|
|
unsigned char ttl, unsigned char proto);
|
85 |
|
|
|
86 |
|
|
err_t ip_output_if(struct pbuf *p, struct ip_addr *src, struct ip_addr *dest,
|
87 |
|
|
unsigned char ttl, unsigned char 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 |
|
|
|