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
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.
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
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__
35 #include "lwip/arch.h"
38 #include "lwip/pbuf.h"
40 #include "lwip/netif.h"
44 #define ICMP6_ECHO 128 /* echo */
45 #define ICMP6_ER 129 /* echo reply */
49 ICMP_DUR_NET = 0, /* net unreachable */
50 ICMP_DUR_HOST = 1, /* host unreachable */
51 ICMP_DUR_PROTO = 2, /* protocol unreachable */
52 ICMP_DUR_PORT = 3, /* port unreachable */
53 ICMP_DUR_FRAG = 4, /* fragmentation needed and DF set */
54 ICMP_DUR_SR = 5 /* source route failed */
58 ICMP_TE_TTL = 0, /* time to live exceeded in transit */
59 ICMP_TE_FRAG = 1 /* fragment reassembly time exceeded */
62 void icmp_input(struct pbuf *p, struct netif *inp);
64 void icmp_dest_unreach(struct pbuf *p, enum icmp_dur_type t);
65 void icmp_time_exceeded(struct pbuf *p, enum icmp_te_type t);
67 struct icmp_echo_hdr {
89 #endif /* __LWIP_ICMP_H__ */