1 #ifndef _LINUX_ICMPV6_H 2 #define _LINUX_ICMPV6_H 3 4 #include <asm/byteorder.h> 5 6 struct icmp6hdr { 7 8 __u8 icmp6_type; 9 __u8 icmp6_code; 10 __u16 icmp6_cksum; 11 12 13 union { 14 __u32 un_data32[1]; 15 __u16 un_data16[2]; 16 __u8 un_data8[4]; 17 18 struct icmpv6_echo { 19 __u16 identifier; 20 __u16 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:6, 44 other:1, 45 managed:1; 46 47 #elif defined(__BIG_ENDIAN_BITFIELD) 48 __u8 managed:1, 49 other:1, 50 reserved:6; 51 #else 52 #error "Please fix <asm/byteorder.h>" 53 #endif 54 __u16 rt_lifetime; 55 } u_nd_ra; 56 57 } icmp6_dataun; 58 59 #define icmp6_identifier icmp6_dataun.u_echo.identifier 60 #define icmp6_sequence icmp6_dataun.u_echo.sequence 61 #define icmp6_pointer icmp6_dataun.un_data32[0] 62 #define icmp6_mtu icmp6_dataun.un_data32[0] 63 #define icmp6_unused icmp6_dataun.un_data32[0] 64 #define icmp6_maxdelay icmp6_dataun.un_data16[0] 65 #define icmp6_router icmp6_dataun.u_nd_advt.router 66 #define icmp6_solicited icmp6_dataun.u_nd_advt.solicited 67 #define icmp6_override icmp6_dataun.u_nd_advt.override 68 #define icmp6_ndiscreserved icmp6_dataun.u_nd_advt.reserved 69 #define icmp6_hop_limit icmp6_dataun.u_nd_ra.hop_limit 70 #define icmp6_addrconf_managed icmp6_dataun.u_nd_ra.managed 71 #define icmp6_addrconf_other icmp6_dataun.u_nd_ra.other 72 #define icmp6_rt_lifetime icmp6_dataun.u_nd_ra.rt_lifetime 73 }; 74 75 76 #define ICMPV6_DEST_UNREACH 1 77 #define ICMPV6_PKT_TOOBIG 2 78 #define ICMPV6_TIME_EXCEED 3 79 #define ICMPV6_PARAMPROB 4 80 81 #define ICMPV6_INFOMSG_MASK 0x80 82 83 #define ICMPV6_ECHO_REQUEST 128 84 #define ICMPV6_ECHO_REPLY 129 85 #define ICMPV6_MGM_QUERY 130 86 #define ICMPV6_MGM_REPORT 131 87 #define ICMPV6_MGM_REDUCTION 132 88 89 /* definitions for MLDv2 */ 90 91 #define MLD2_MODE_IS_INCLUDE 1 92 #define MLD2_MODE_IS_EXCLUDE 2 93 #define MLD2_CHANGE_TO_INCLUDE 3 94 #define MLD2_CHANGE_TO_EXCLUDE 4 95 #define MLD2_ALLOW_NEW_SOURCES 5 96 #define MLD2_BLOCK_OLD_SOURCES 6 97 98 #define ICMPV6_MLD2_REPORT 143 99 #define MLD2_ALL_MCR_INIT { { { 0xff,0x02,0,0,0,0,0,0,0,0,0,0,0,0,0,0x16 } } } 100 101 /* 102 * Codes for Destination Unreachable 103 */ 104 #define ICMPV6_NOROUTE 0 105 #define ICMPV6_ADM_PROHIBITED 1 106 #define ICMPV6_NOT_NEIGHBOUR 2 107 #define ICMPV6_ADDR_UNREACH 3 108 #define ICMPV6_PORT_UNREACH 4 109 110 /* 111 * Codes for Time Exceeded 112 */ 113 #define ICMPV6_EXC_HOPLIMIT 0 114 #define ICMPV6_EXC_FRAGTIME 1 115 116 /* 117 * Codes for Parameter Problem 118 */ 119 #define ICMPV6_HDR_FIELD 0 120 #define ICMPV6_UNK_NEXTHDR 1 121 #define ICMPV6_UNK_OPTION 2 122 123 /* 124 * constants for (set|get)sockopt 125 */ 126 127 #define ICMPV6_FILTER 1 128 129 /* 130 * ICMPV6 filter 131 */ 132 133 #define ICMPV6_FILTER_BLOCK 1 134 #define ICMPV6_FILTER_PASS 2 135 #define ICMPV6_FILTER_BLOCKOTHERS 3 136 #define ICMPV6_FILTER_PASSONLY 4 137 138 struct icmp6_filter { 139 __u32 data[8]; 140 }; 141 142 #ifdef __KERNEL__ 143 144 #include <linux/netdevice.h> 145 #include <linux/skbuff.h> 146 147 148 extern void icmpv6_send(struct sk_buff *skb, 149 int type, int code, 150 __u32 info, 151 struct net_device *dev); 152 153 extern int icmpv6_init(struct net_proto_family *ops); 154 extern int icmpv6_err_convert(int type, int code, 155 int *err); 156 extern void icmpv6_cleanup(void); 157 extern void icmpv6_param_prob(struct sk_buff *skb, 158 int code, int pos); 159 #endif 160 161 #endif 162