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>
32 #ifndef __LWIP_ICMP_H__
33 #define __LWIP_ICMP_H__
37 #if LWIP_ICMP /* don't build if not configured for use in lwipopts.h */
39 #include "lwip/pbuf.h"
40 #include "lwip/netif.h"
48 #define ICMP6_ECHO 128 /* echo */
49 #define ICMP6_ER 129 /* echo reply */
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 */
62 ICMP_TE_TTL = 0, /* time to live exceeded in transit */
63 ICMP_TE_FRAG = 1 /* fragment reassembly time exceeded */
66 void icmp_input(struct pbuf *p, struct netif *inp);
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);
71 struct icmp_echo_hdr {
97 #endif /* LWIP_ICMP */
99 #endif /* __LWIP_ICMP_H__ */