1#ifndef _LINUX_ICMPV6_H 2#define _LINUX_ICMPV6_H 3 4#include <asm/byteorder.h> 5 6struct icmp6hdr { 7 8 __u8 icmp6_type; 9 __u8 icmp6_code; 10 __sum16 icmp6_cksum; 11 12 13 union { 14 __be32 un_data32[1]; 15 __be16 un_data16[2]; 16 __u8 un_data8[4]; 17 18 struct icmpv6_echo { 19 __be16 identifier; 20 __be16 sequence; 21 } u_echo; 22 23 struct icmpv6_nd_advt { 24#if defined(__LITTLE_ENDIAN_BITFIELD) 25 __u32 reserved:5, 26 override:1, 27 solicited:1, 28 router:1, 29 reserved2:24; 30#elif defined(__BIG_ENDIAN_BITFIELD) 31 __u32 router:1, 32 solicited:1, 33 override:1, 34 reserved:29; 35#else 36#error "Please fix <asm/byteorder.h>" 37#endif 38 } u_nd_advt; 39 40 struct icmpv6_nd_ra { 41 __u8 hop_limit; 42#if defined(__LITTLE_ENDIAN_BITFIELD) 43 __u8 reserved:4, 44 router_pref:2, 45 other:1, 46 managed:1; 47 48#elif defined(__BIG_ENDIAN_BITFIELD) 49 __u8 managed:1, 50 other:1, 51 router_pref:2, 52 reserved:4; 53#else 54#error "Please fix <asm/byteorder.h>" 55#endif 56 __be16 rt_lifetime; 57 } u_nd_ra; 58 59 } icmp6_dataun; 60 61#define icmp6_identifier icmp6_dataun.u_echo.identifier 62#define icmp6_sequence icmp6_dataun.u_echo.sequence 63#define icmp6_pointer icmp6_dataun.un_data32[0] 64#define icmp6_mtu icmp6_dataun.un_data32[0] 65#define icmp6_unused icmp6_dataun.un_data32[0] 66#define icmp6_maxdelay icmp6_dataun.un_data16[0] 67#define icmp6_router icmp6_dataun.u_nd_advt.router 68#define icmp6_solicited icmp6_dataun.u_nd_advt.solicited 69#define icmp6_override icmp6_dataun.u_nd_advt.override 70#define icmp6_ndiscreserved icmp6_dataun.u_nd_advt.reserved 71#define icmp6_hop_limit icmp6_dataun.u_nd_ra.hop_limit 72#define icmp6_addrconf_managed icmp6_dataun.u_nd_ra.managed 73#define icmp6_addrconf_other icmp6_dataun.u_nd_ra.other 74#define icmp6_rt_lifetime icmp6_dataun.u_nd_ra.rt_lifetime 75#define icmp6_router_pref icmp6_dataun.u_nd_ra.router_pref 76}; 77 78#ifdef __KERNEL__ 79#include <linux/skbuff.h> 80 81static inline struct icmp6hdr *icmp6_hdr(const struct sk_buff *skb) 82{ 83 return (struct icmp6hdr *)skb_transport_header(skb); 84} 85#endif 86 87#define ICMPV6_ROUTER_PREF_LOW 0x3 88#define ICMPV6_ROUTER_PREF_MEDIUM 0x0 89#define ICMPV6_ROUTER_PREF_HIGH 0x1 90#define ICMPV6_ROUTER_PREF_INVALID 0x2 91 92#define ICMPV6_DEST_UNREACH 1 93#define ICMPV6_PKT_TOOBIG 2 94#define ICMPV6_TIME_EXCEED 3 95#define ICMPV6_PARAMPROB 4 96 97#define ICMPV6_INFOMSG_MASK 0x80 98 99#define ICMPV6_ECHO_REQUEST 128 100#define ICMPV6_ECHO_REPLY 129 101#define ICMPV6_MGM_QUERY 130 102#define ICMPV6_MGM_REPORT 131 103#define ICMPV6_MGM_REDUCTION 132 104 105#define ICMPV6_NI_QUERY 139 106#define ICMPV6_NI_REPLY 140 107 108#define ICMPV6_MLD2_REPORT 143 109 110#define ICMPV6_DHAAD_REQUEST 144 111#define ICMPV6_DHAAD_REPLY 145 112#define ICMPV6_MOBILE_PREFIX_SOL 146 113#define ICMPV6_MOBILE_PREFIX_ADV 147 114 115/* 116 * Codes for Destination Unreachable 117 */ 118#define ICMPV6_NOROUTE 0 119#define ICMPV6_ADM_PROHIBITED 1 120#define ICMPV6_NOT_NEIGHBOUR 2 121#define ICMPV6_ADDR_UNREACH 3 122#define ICMPV6_PORT_UNREACH 4 123 124/* 125 * Codes for Time Exceeded 126 */ 127#define ICMPV6_EXC_HOPLIMIT 0 128#define ICMPV6_EXC_FRAGTIME 1 129 130/* 131 * Codes for Parameter Problem 132 */ 133#define ICMPV6_HDR_FIELD 0 134#define ICMPV6_UNK_NEXTHDR 1 135#define ICMPV6_UNK_OPTION 2 136 137/* 138 * constants for (set|get)sockopt 139 */ 140 141#define ICMPV6_FILTER 1 142 143/* 144 * ICMPV6 filter 145 */ 146 147#define ICMPV6_FILTER_BLOCK 1 148#define ICMPV6_FILTER_PASS 2 149#define ICMPV6_FILTER_BLOCKOTHERS 3 150#define ICMPV6_FILTER_PASSONLY 4 151 152struct icmp6_filter { 153 __u32 data[8]; 154}; 155 156/* 157 * Definitions for MLDv2 158 */ 159#define MLD2_MODE_IS_INCLUDE 1 160#define MLD2_MODE_IS_EXCLUDE 2 161#define MLD2_CHANGE_TO_INCLUDE 3 162#define MLD2_CHANGE_TO_EXCLUDE 4 163#define MLD2_ALLOW_NEW_SOURCES 5 164#define MLD2_BLOCK_OLD_SOURCES 6 165 166#define MLD2_ALL_MCR_INIT { { { 0xff,0x02,0,0,0,0,0,0,0,0,0,0,0,0,0,0x16 } } } 167 168#ifdef __KERNEL__ 169 170#include <linux/netdevice.h> 171#include <linux/skbuff.h> 172 173 174extern void icmpv6_send(struct sk_buff *skb, 175 int type, int code, 176 __u32 info, 177 struct net_device *dev); 178 179extern int icmpv6_init(struct net_proto_family *ops); 180extern int icmpv6_err_convert(int type, int code, 181 int *err); 182extern void icmpv6_cleanup(void); 183extern void icmpv6_param_prob(struct sk_buff *skb, 184 int code, int pos); 185#endif 186 187#endif 188