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icmp6.h
00001 /** 00002 * @file 00003 * ICMP6 protocol definitions 00004 */ 00005 00006 /* 00007 * Copyright (c) 2001-2004 Swedish Institute of Computer Science. 00008 * All rights reserved. 00009 * 00010 * Redistribution and use in source and binary forms, with or without modification, 00011 * are permitted provided that the following conditions are met: 00012 * 00013 * 1. Redistributions of source code must retain the above copyright notice, 00014 * this list of conditions and the following disclaimer. 00015 * 2. Redistributions in binary form must reproduce the above copyright notice, 00016 * this list of conditions and the following disclaimer in the documentation 00017 * and/or other materials provided with the distribution. 00018 * 3. The name of the author may not be used to endorse or promote products 00019 * derived from this software without specific prior written permission. 00020 * 00021 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 00022 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 00023 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 00024 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 00025 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 00026 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00027 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00028 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 00029 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 00030 * OF SUCH DAMAGE. 00031 * 00032 * This file is part of the lwIP TCP/IP stack. 00033 * 00034 * Author: Adam Dunkels <adam@sics.se> 00035 * 00036 */ 00037 #ifndef LWIP_HDR_PROT_ICMP6_H 00038 #define LWIP_HDR_PROT_ICMP6_H 00039 00040 #include "lwip/arch.h" 00041 00042 #ifdef __cplusplus 00043 extern "C" { 00044 #endif 00045 00046 /** ICMP type */ 00047 enum icmp6_type { 00048 /** Destination unreachable */ 00049 ICMP6_TYPE_DUR = 1, 00050 /** Packet too big */ 00051 ICMP6_TYPE_PTB = 2, 00052 /** Time exceeded */ 00053 ICMP6_TYPE_TE = 3, 00054 /** Parameter problem */ 00055 ICMP6_TYPE_PP = 4, 00056 /** Private experimentation */ 00057 ICMP6_TYPE_PE1 = 100, 00058 /** Private experimentation */ 00059 ICMP6_TYPE_PE2 = 101, 00060 /** Reserved for expansion of error messages */ 00061 ICMP6_TYPE_RSV_ERR = 127, 00062 00063 /** Echo request */ 00064 ICMP6_TYPE_EREQ = 128, 00065 /** Echo reply */ 00066 ICMP6_TYPE_EREP = 129, 00067 /** Multicast listener query */ 00068 ICMP6_TYPE_MLQ = 130, 00069 /** Multicast listener report */ 00070 ICMP6_TYPE_MLR = 131, 00071 /** Multicast listener done */ 00072 ICMP6_TYPE_MLD = 132, 00073 /** Router solicitation */ 00074 ICMP6_TYPE_RS = 133, 00075 /** Router advertisement */ 00076 ICMP6_TYPE_RA = 134, 00077 /** Neighbor solicitation */ 00078 ICMP6_TYPE_NS = 135, 00079 /** Neighbor advertisement */ 00080 ICMP6_TYPE_NA = 136, 00081 /** Redirect */ 00082 ICMP6_TYPE_RD = 137, 00083 /** Multicast router advertisement */ 00084 ICMP6_TYPE_MRA = 151, 00085 /** Multicast router solicitation */ 00086 ICMP6_TYPE_MRS = 152, 00087 /** Multicast router termination */ 00088 ICMP6_TYPE_MRT = 153, 00089 /** Private experimentation */ 00090 ICMP6_TYPE_PE3 = 200, 00091 /** Private experimentation */ 00092 ICMP6_TYPE_PE4 = 201, 00093 /** Reserved for expansion of informational messages */ 00094 ICMP6_TYPE_RSV_INF = 255 00095 }; 00096 00097 /** ICMP destination unreachable codes */ 00098 enum icmp6_dur_code { 00099 /** No route to destination */ 00100 ICMP6_DUR_NO_ROUTE = 0, 00101 /** Communication with destination administratively prohibited */ 00102 ICMP6_DUR_PROHIBITED = 1, 00103 /** Beyond scope of source address */ 00104 ICMP6_DUR_SCOPE = 2, 00105 /** Address unreachable */ 00106 ICMP6_DUR_ADDRESS = 3, 00107 /** Port unreachable */ 00108 ICMP6_DUR_PORT = 4, 00109 /** Source address failed ingress/egress policy */ 00110 ICMP6_DUR_POLICY = 5, 00111 /** Reject route to destination */ 00112 ICMP6_DUR_REJECT_ROUTE = 6 00113 }; 00114 00115 /** ICMP time exceeded codes */ 00116 enum icmp6_te_code { 00117 /** Hop limit exceeded in transit */ 00118 ICMP6_TE_HL = 0, 00119 /** Fragment reassembly time exceeded */ 00120 ICMP6_TE_FRAG = 1 00121 }; 00122 00123 /** ICMP parameter code */ 00124 enum icmp6_pp_code { 00125 /** Erroneous header field encountered */ 00126 ICMP6_PP_FIELD = 0, 00127 /** Unrecognized next header type encountered */ 00128 ICMP6_PP_HEADER = 1, 00129 /** Unrecognized IPv6 option encountered */ 00130 ICMP6_PP_OPTION = 2 00131 }; 00132 00133 /** This is the standard ICMP6 header. */ 00134 #ifdef PACK_STRUCT_USE_INCLUDES 00135 # include "arch/bpstruct.h" 00136 #endif 00137 PACK_STRUCT_BEGIN 00138 struct icmp6_hdr { 00139 PACK_STRUCT_FLD_8(u8_t type); 00140 PACK_STRUCT_FLD_8(u8_t code); 00141 PACK_STRUCT_FIELD(u16_t chksum); 00142 PACK_STRUCT_FIELD(u32_t data); 00143 } PACK_STRUCT_STRUCT; 00144 PACK_STRUCT_END 00145 #ifdef PACK_STRUCT_USE_INCLUDES 00146 # include "arch/epstruct.h" 00147 #endif 00148 00149 /** This is the ICMP6 header adapted for echo req/resp. */ 00150 #ifdef PACK_STRUCT_USE_INCLUDES 00151 # include "arch/bpstruct.h" 00152 #endif 00153 PACK_STRUCT_BEGIN 00154 struct icmp6_echo_hdr { 00155 PACK_STRUCT_FLD_8(u8_t type); 00156 PACK_STRUCT_FLD_8(u8_t code); 00157 PACK_STRUCT_FIELD(u16_t chksum); 00158 PACK_STRUCT_FIELD(u16_t id); 00159 PACK_STRUCT_FIELD(u16_t seqno); 00160 } PACK_STRUCT_STRUCT; 00161 PACK_STRUCT_END 00162 #ifdef PACK_STRUCT_USE_INCLUDES 00163 # include "arch/epstruct.h" 00164 #endif 00165 00166 #ifdef __cplusplus 00167 } 00168 #endif 00169 00170 #endif /* LWIP_HDR_PROT_ICMP6_H */
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