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icmpv6.h
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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _LINUX_ICMPV6_H #define _LINUX_ICMPV6_H #include <linux/types.h> #include <asm/byteorder.h> struct icmp6hdr { __u8 icmp6_type; __u8 icmp6_code; __sum16 icmp6_cksum; union { __be32 un_data32[1]; __be16 un_data16[2]; __u8 un_data8[4]; struct icmpv6_echo { __be16 identifier; __be16 sequence; } u_echo; struct icmpv6_nd_advt { #if defined(__LITTLE_ENDIAN_BITFIELD) __u32 reserved:5, override:1, solicited:1, router:1, reserved2:24; #elif defined(__BIG_ENDIAN_BITFIELD) __u32 router:1, solicited:1, override:1, reserved:29; #else #error "Please fix <asm/byteorder.h>" #endif } u_nd_advt; struct icmpv6_nd_ra { __u8 hop_limit; #if defined(__LITTLE_ENDIAN_BITFIELD) __u8 reserved:3, router_pref:2, home_agent:1, other:1, managed:1; #elif defined(__BIG_ENDIAN_BITFIELD) __u8 managed:1, other:1, home_agent:1, router_pref:2, reserved:3; #else #error "Please fix <asm/byteorder.h>" #endif __be16 rt_lifetime; } u_nd_ra; } icmp6_dataun; #define icmp6_identifier icmp6_dataun.u_echo.identifier #define icmp6_sequence icmp6_dataun.u_echo.sequence #define icmp6_pointer icmp6_dataun.un_data32[0] #define icmp6_mtu icmp6_dataun.un_data32[0] #define icmp6_unused icmp6_dataun.un_data32[0] #define icmp6_maxdelay icmp6_dataun.un_data16[0] #define icmp6_router icmp6_dataun.u_nd_advt.router #define icmp6_solicited icmp6_dataun.u_nd_advt.solicited #define icmp6_override icmp6_dataun.u_nd_advt.override #define icmp6_ndiscreserved icmp6_dataun.u_nd_advt.reserved #define icmp6_hop_limit icmp6_dataun.u_nd_ra.hop_limit #define icmp6_addrconf_managed icmp6_dataun.u_nd_ra.managed #define icmp6_addrconf_other icmp6_dataun.u_nd_ra.other #define icmp6_rt_lifetime icmp6_dataun.u_nd_ra.rt_lifetime #define icmp6_router_pref icmp6_dataun.u_nd_ra.router_pref }; #define ICMPV6_ROUTER_PREF_LOW 0x3 #define ICMPV6_ROUTER_PREF_MEDIUM 0x0 #define ICMPV6_ROUTER_PREF_HIGH 0x1 #define ICMPV6_ROUTER_PREF_INVALID 0x2 #define ICMPV6_DEST_UNREACH 1 #define ICMPV6_PKT_TOOBIG 2 #define ICMPV6_TIME_EXCEED 3 #define ICMPV6_PARAMPROB 4 #define ICMPV6_INFOMSG_MASK 0x80 #define ICMPV6_ECHO_REQUEST 128 #define ICMPV6_ECHO_REPLY 129 #define ICMPV6_MGM_QUERY 130 #define ICMPV6_MGM_REPORT 131 #define ICMPV6_MGM_REDUCTION 132 #define ICMPV6_NI_QUERY 139 #define ICMPV6_NI_REPLY 140 #define ICMPV6_MLD2_REPORT 143 #define ICMPV6_DHAAD_REQUEST 144 #define ICMPV6_DHAAD_REPLY 145 #define ICMPV6_MOBILE_PREFIX_SOL 146 #define ICMPV6_MOBILE_PREFIX_ADV 147 #define ICMPV6_MRDISC_ADV 151 /* * Codes for Destination Unreachable */ #define ICMPV6_NOROUTE 0 #define ICMPV6_ADM_PROHIBITED 1 #define ICMPV6_NOT_NEIGHBOUR 2 #define ICMPV6_ADDR_UNREACH 3 #define ICMPV6_PORT_UNREACH 4 #define ICMPV6_POLICY_FAIL 5 #define ICMPV6_REJECT_ROUTE 6 /* * Codes for Time Exceeded */ #define ICMPV6_EXC_HOPLIMIT 0 #define ICMPV6_EXC_FRAGTIME 1 /* * Codes for Parameter Problem */ #define ICMPV6_HDR_FIELD 0 #define ICMPV6_UNK_NEXTHDR 1 #define ICMPV6_UNK_OPTION 2 #define ICMPV6_HDR_INCOMP 3 /* * constants for (set|get)sockopt */ #define ICMPV6_FILTER 1 /* * ICMPV6 filter */ #define ICMPV6_FILTER_BLOCK 1 #define ICMPV6_FILTER_PASS 2 #define ICMPV6_FILTER_BLOCKOTHERS 3 #define ICMPV6_FILTER_PASSONLY 4 struct icmp6_filter { __u32 data[8]; }; /* * Definitions for MLDv2 */ #define MLD2_MODE_IS_INCLUDE 1 #define MLD2_MODE_IS_EXCLUDE 2 #define MLD2_CHANGE_TO_INCLUDE 3 #define MLD2_CHANGE_TO_EXCLUDE 4 #define MLD2_ALLOW_NEW_SOURCES 5 #define MLD2_BLOCK_OLD_SOURCES 6 #define MLD2_ALL_MCR_INIT { { { 0xff,0x02,0,0,0,0,0,0,0,0,0,0,0,0,0,0x16 } } } #endif /* _LINUX_ICMPV6_H */