A version of LWIP, provided for backwards compatibility.
Dependents: AA_DemoBoard DemoBoard HelloServerDemo DemoBoard_RangeIndicator ... more
icmp.h
00001 /* 00002 * Copyright (c) 2001-2004 Swedish Institute of Computer Science. 00003 * All rights reserved. 00004 * 00005 * Redistribution and use in source and binary forms, with or without modification, 00006 * are permitted provided that the following conditions are met: 00007 * 00008 * 1. Redistributions of source code must retain the above copyright notice, 00009 * this list of conditions and the following disclaimer. 00010 * 2. Redistributions in binary form must reproduce the above copyright notice, 00011 * this list of conditions and the following disclaimer in the documentation 00012 * and/or other materials provided with the distribution. 00013 * 3. The name of the author may not be used to endorse or promote products 00014 * derived from this software without specific prior written permission. 00015 * 00016 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 00017 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 00018 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 00019 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 00020 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 00021 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00022 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00023 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 00024 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 00025 * OF SUCH DAMAGE. 00026 * 00027 * This file is part of the lwIP TCP/IP stack. 00028 * 00029 * Author: Adam Dunkels <adam@sics.se> 00030 * 00031 */ 00032 #ifndef __LWIP_ICMP_H__ 00033 #define __LWIP_ICMP_H__ 00034 00035 #include "lwip/opt.h" 00036 00037 #if LWIP_ICMP /* don't build if not configured for use in lwipopts.h */ 00038 00039 #include "lwip/pbuf.h" 00040 #include "lwip/netif.h" 00041 00042 #ifdef __cplusplus 00043 extern "C" { 00044 #endif 00045 00046 #define ICMP6_DUR 1 00047 #define ICMP6_TE 3 00048 #define ICMP6_ECHO 128 /* echo */ 00049 #define ICMP6_ER 129 /* echo reply */ 00050 00051 00052 enum icmp_dur_type { 00053 ICMP_DUR_NET = 0, /* net unreachable */ 00054 ICMP_DUR_HOST = 1, /* host unreachable */ 00055 ICMP_DUR_PROTO = 2, /* protocol unreachable */ 00056 ICMP_DUR_PORT = 3, /* port unreachable */ 00057 ICMP_DUR_FRAG = 4, /* fragmentation needed and DF set */ 00058 ICMP_DUR_SR = 5 /* source route failed */ 00059 }; 00060 00061 enum icmp_te_type { 00062 ICMP_TE_TTL = 0, /* time to live exceeded in transit */ 00063 ICMP_TE_FRAG = 1 /* fragment reassembly time exceeded */ 00064 }; 00065 00066 void icmp_input(struct pbuf *p, struct netif *inp); 00067 00068 void icmp_dest_unreach(struct pbuf *p, enum icmp_dur_type t); 00069 void icmp_time_exceeded(struct pbuf *p, enum icmp_te_type t); 00070 00071 struct icmp_echo_hdr { 00072 u8_t type; 00073 u8_t icode; 00074 u16_t chksum; 00075 u16_t id; 00076 u16_t seqno; 00077 }; 00078 00079 struct icmp_dur_hdr { 00080 u8_t type; 00081 u8_t icode; 00082 u16_t chksum; 00083 u32_t unused; 00084 }; 00085 00086 struct icmp_te_hdr { 00087 u8_t type; 00088 u8_t icode; 00089 u16_t chksum; 00090 u32_t unused; 00091 }; 00092 00093 #ifdef __cplusplus 00094 } 00095 #endif 00096 00097 #endif /* LWIP_ICMP */ 00098 00099 #endif /* __LWIP_ICMP_H__ */ 00100
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