1#ifndef _LINUX_ICMPV6_H 2#define _LINUX_ICMPV6_H 3 4#include <linux/types.h> 5#include <asm/byteorder.h> 6 7struct icmp6hdr { 8 9 __u8 icmp6_type; 10 __u8 icmp6_code; 11 __sum16 icmp6_cksum; 12 13 14 union { 15 __be32 un_data32[1]; 16 __be16 un_data16[2]; 17 __u8 un_data8[4]; 18 19 struct icmpv6_echo { 20 __be16 identifier; 21 __be16 sequence; 22 } u_echo; 23 24 struct icmpv6_nd_advt { 25#if defined(__LITTLE_ENDIAN_BITFIELD) 26 __u32 reserved:5, 27 override:1, 28 solicited:1, 29 router:1, 30 reserved2:24; 31#elif defined(__BIG_ENDIAN_BITFIELD) 32 __u32 router:1, 33 solicited:1, 34 override:1, 35 reserved:29; 36#else 37#error "Please fix <asm/byteorder.h>" 38#endif 39 } u_nd_advt; 40 41 struct icmpv6_nd_ra { 42 __u8 hop_limit; 43#if defined(__LITTLE_ENDIAN_BITFIELD) 44 __u8 reserved:3, 45 router_pref:2, 46 home_agent:1, 47 other:1, 48 managed:1; 49 50#elif defined(__BIG_ENDIAN_BITFIELD) 51 __u8 managed:1, 52 other:1, 53 home_agent:1, 54 router_pref:2, 55 reserved:3; 56#else 57#error "Please fix <asm/byteorder.h>" 58#endif 59 __be16 rt_lifetime; 60 } u_nd_ra; 61 62 } icmp6_dataun; 63 64#define icmp6_identifier icmp6_dataun.u_echo.identifier 65#define icmp6_sequence icmp6_dataun.u_echo.sequence 66#define icmp6_pointer icmp6_dataun.un_data32[0] 67#define icmp6_mtu icmp6_dataun.un_data32[0] 68#define icmp6_unused icmp6_dataun.un_data32[0] 69#define icmp6_maxdelay icmp6_dataun.un_data16[0] 70#define icmp6_router icmp6_dataun.u_nd_advt.router 71#define icmp6_solicited icmp6_dataun.u_nd_advt.solicited 72#define icmp6_override icmp6_dataun.u_nd_advt.override 73#define icmp6_ndiscreserved icmp6_dataun.u_nd_advt.reserved 74#define icmp6_hop_limit icmp6_dataun.u_nd_ra.hop_limit 75#define icmp6_addrconf_managed icmp6_dataun.u_nd_ra.managed 76#define icmp6_addrconf_other icmp6_dataun.u_nd_ra.other 77#define icmp6_rt_lifetime icmp6_dataun.u_nd_ra.rt_lifetime 78#define icmp6_router_pref icmp6_dataun.u_nd_ra.router_pref 79}; 80 81 82#define ICMPV6_ROUTER_PREF_LOW 0x3 83#define ICMPV6_ROUTER_PREF_MEDIUM 0x0 84#define ICMPV6_ROUTER_PREF_HIGH 0x1 85#define ICMPV6_ROUTER_PREF_INVALID 0x2 86 87#define ICMPV6_DEST_UNREACH 1 88#define ICMPV6_PKT_TOOBIG 2 89#define ICMPV6_TIME_EXCEED 3 90#define ICMPV6_PARAMPROB 4 91 92#define ICMPV6_INFOMSG_MASK 0x80 93 94#define ICMPV6_ECHO_REQUEST 128 95#define ICMPV6_ECHO_REPLY 129 96#define ICMPV6_MGM_QUERY 130 97#define ICMPV6_MGM_REPORT 131 98#define ICMPV6_MGM_REDUCTION 132 99 100#define ICMPV6_NI_QUERY 139 101#define ICMPV6_NI_REPLY 140 102 103#define ICMPV6_MLD2_REPORT 143 104 105#define ICMPV6_DHAAD_REQUEST 144 106#define ICMPV6_DHAAD_REPLY 145 107#define ICMPV6_MOBILE_PREFIX_SOL 146 108#define ICMPV6_MOBILE_PREFIX_ADV 147 109 110/* 111 * Codes for Destination Unreachable 112 */ 113#define ICMPV6_NOROUTE 0 114#define ICMPV6_ADM_PROHIBITED 1 115#define ICMPV6_NOT_NEIGHBOUR 2 116#define ICMPV6_ADDR_UNREACH 3 117#define ICMPV6_PORT_UNREACH 4 118 119/* 120 * Codes for Time Exceeded 121 */ 122#define ICMPV6_EXC_HOPLIMIT 0 123#define ICMPV6_EXC_FRAGTIME 1 124 125/* 126 * Codes for Parameter Problem 127 */ 128#define ICMPV6_HDR_FIELD 0 129#define ICMPV6_UNK_NEXTHDR 1 130#define ICMPV6_UNK_OPTION 2 131 132/* 133 * constants for (set|get)sockopt 134 */ 135 136#define ICMPV6_FILTER 1 137 138/* 139 * ICMPV6 filter 140 */ 141 142#define ICMPV6_FILTER_BLOCK 1 143#define ICMPV6_FILTER_PASS 2 144#define ICMPV6_FILTER_BLOCKOTHERS 3 145#define ICMPV6_FILTER_PASSONLY 4 146 147struct icmp6_filter { 148 __u32 data[8]; 149}; 150 151/* 152 * Definitions for MLDv2 153 */ 154#define MLD2_MODE_IS_INCLUDE 1 155#define MLD2_MODE_IS_EXCLUDE 2 156#define MLD2_CHANGE_TO_INCLUDE 3 157#define MLD2_CHANGE_TO_EXCLUDE 4 158#define MLD2_ALLOW_NEW_SOURCES 5 159#define MLD2_BLOCK_OLD_SOURCES 6 160 161#define MLD2_ALL_MCR_INIT { { { 0xff,0x02,0,0,0,0,0,0,0,0,0,0,0,0,0,0x16 } } } 162 163 164#endif 165