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#ifdef __KERNEL__ 82#include <linux/skbuff.h> 83 84static inline struct icmp6hdr *icmp6_hdr(const struct sk_buff *skb) 85{ 86 return (struct icmp6hdr *)skb_transport_header(skb); 87} 88#endif 89 90#define ICMPV6_ROUTER_PREF_LOW 0x3 91#define ICMPV6_ROUTER_PREF_MEDIUM 0x0 92#define ICMPV6_ROUTER_PREF_HIGH 0x1 93#define ICMPV6_ROUTER_PREF_INVALID 0x2 94 95#define ICMPV6_DEST_UNREACH 1 96#define ICMPV6_PKT_TOOBIG 2 97#define ICMPV6_TIME_EXCEED 3 98#define ICMPV6_PARAMPROB 4 99 100#define ICMPV6_INFOMSG_MASK 0x80 101 102#define ICMPV6_ECHO_REQUEST 128 103#define ICMPV6_ECHO_REPLY 129 104#define ICMPV6_MGM_QUERY 130 105#define ICMPV6_MGM_REPORT 131 106#define ICMPV6_MGM_REDUCTION 132 107 108#define ICMPV6_NI_QUERY 139 109#define ICMPV6_NI_REPLY 140 110 111#define ICMPV6_MLD2_REPORT 143 112 113#define ICMPV6_DHAAD_REQUEST 144 114#define ICMPV6_DHAAD_REPLY 145 115#define ICMPV6_MOBILE_PREFIX_SOL 146 116#define ICMPV6_MOBILE_PREFIX_ADV 147 117 118/* 119 * Codes for Destination Unreachable 120 */ 121#define ICMPV6_NOROUTE 0 122#define ICMPV6_ADM_PROHIBITED 1 123#define ICMPV6_NOT_NEIGHBOUR 2 124#define ICMPV6_ADDR_UNREACH 3 125#define ICMPV6_PORT_UNREACH 4 126#define ICMPV6_SRC_ADDR_FAIL_POLICY 5 127 128/* 129 * Codes for Time Exceeded 130 */ 131#define ICMPV6_EXC_HOPLIMIT 0 132#define ICMPV6_EXC_FRAGTIME 1 133 134/* 135 * Codes for Parameter Problem 136 */ 137#define ICMPV6_HDR_FIELD 0 138#define ICMPV6_UNK_NEXTHDR 1 139#define ICMPV6_UNK_OPTION 2 140 141/* 142 * constants for (set|get)sockopt 143 */ 144 145#define ICMPV6_FILTER 1 146 147/* 148 * ICMPV6 filter 149 */ 150 151#define ICMPV6_FILTER_BLOCK 1 152#define ICMPV6_FILTER_PASS 2 153#define ICMPV6_FILTER_BLOCKOTHERS 3 154#define ICMPV6_FILTER_PASSONLY 4 155 156struct icmp6_filter { 157 __u32 data[8]; 158}; 159 160/* 161 * Definitions for MLDv2 162 */ 163#define MLD2_MODE_IS_INCLUDE 1 164#define MLD2_MODE_IS_EXCLUDE 2 165#define MLD2_CHANGE_TO_INCLUDE 3 166#define MLD2_CHANGE_TO_EXCLUDE 4 167#define MLD2_ALLOW_NEW_SOURCES 5 168#define MLD2_BLOCK_OLD_SOURCES 6 169 170#define MLD2_ALL_MCR_INIT { { { 0xff,0x02,0,0,0,0,0,0,0,0,0,0,0,0,0,0x16 } } } 171 172#ifdef __KERNEL__ 173 174#include <linux/netdevice.h> 175 176extern void icmpv6_send(struct sk_buff *skb, 177 u8 type, u8 code, 178 __u32 info); 179 180extern int icmpv6_init(void); 181extern int icmpv6_err_convert(u8 type, u8 code, 182 int *err); 183extern void icmpv6_cleanup(void); 184extern void icmpv6_param_prob(struct sk_buff *skb, 185 u8 code, int pos); 186 187struct flowi; 188struct in6_addr; 189extern void icmpv6_flow_init(struct sock *sk, 190 struct flowi *fl, 191 u8 type, 192 const struct in6_addr *saddr, 193 const struct in6_addr *daddr, 194 int oif); 195#endif 196 197#endif 198