#ifndef _UAPI_LINUX_ICMPV6_H#define _UAPI_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 /* *	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 /* *	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 /* _UAPI_LINUX_ICMPV6_H */