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6e6d4a8b JP |
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_ICMP_H__ | |
33 | #define __LWIP_ICMP_H__ | |
34 | ||
35 | #include "lwip/opt.h" | |
36 | ||
37 | #if LWIP_ICMP /* don't build if not configured for use in lwipopts.h */ | |
38 | ||
39 | #include "lwip/pbuf.h" | |
40 | #include "lwip/netif.h" | |
41 | ||
42 | #ifdef __cplusplus | |
43 | extern "C" { | |
44 | #endif | |
45 | ||
46 | #define ICMP6_DUR 1 | |
47 | #define ICMP6_TE 3 | |
48 | #define ICMP6_ECHO 128 /* echo */ | |
49 | #define ICMP6_ER 129 /* echo reply */ | |
50 | ||
51 | ||
52 | enum icmp_dur_type { | |
53 | ICMP_DUR_NET = 0, /* net unreachable */ | |
54 | ICMP_DUR_HOST = 1, /* host unreachable */ | |
55 | ICMP_DUR_PROTO = 2, /* protocol unreachable */ | |
56 | ICMP_DUR_PORT = 3, /* port unreachable */ | |
57 | ICMP_DUR_FRAG = 4, /* fragmentation needed and DF set */ | |
58 | ICMP_DUR_SR = 5 /* source route failed */ | |
59 | }; | |
60 | ||
61 | enum icmp_te_type { | |
62 | ICMP_TE_TTL = 0, /* time to live exceeded in transit */ | |
63 | ICMP_TE_FRAG = 1 /* fragment reassembly time exceeded */ | |
64 | }; | |
65 | ||
66 | void icmp_input(struct pbuf *p, struct netif *inp); | |
67 | ||
68 | void icmp_dest_unreach(struct pbuf *p, enum icmp_dur_type t); | |
69 | void icmp_time_exceeded(struct pbuf *p, enum icmp_te_type t); | |
70 | ||
71 | struct icmp_echo_hdr { | |
72 | u8_t type; | |
73 | u8_t icode; | |
74 | u16_t chksum; | |
75 | u16_t id; | |
76 | u16_t seqno; | |
77 | }; | |
78 | ||
79 | struct icmp_dur_hdr { | |
80 | u8_t type; | |
81 | u8_t icode; | |
82 | u16_t chksum; | |
83 | u32_t unused; | |
84 | }; | |
85 | ||
86 | struct icmp_te_hdr { | |
87 | u8_t type; | |
88 | u8_t icode; | |
89 | u16_t chksum; | |
90 | u32_t unused; | |
91 | }; | |
92 | ||
93 | #ifdef __cplusplus | |
94 | } | |
95 | #endif | |
96 | ||
97 | #endif /* LWIP_ICMP */ | |
98 | ||
99 | #endif /* __LWIP_ICMP_H__ */ | |
100 |