[mirror_iproute2.git] / include / uapi / linux / icmpv6.h

/* 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_datagram_len	icmp6_dataun.un_data8[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_ERRMSG_MAX       127

#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

#define ICMPV6_MSG_MAX          255

/*
 *	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 /* _LINUX_ICMPV6_H */
Commit	Line	Data
ba914908	1	/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
65047fa6 SH	2	#ifndef _LINUX_ICMPV6_H
	3	#define _LINUX_ICMPV6_H
	4
	5	#include <linux/types.h>
	6	#include <asm/byteorder.h>
	7
	8	struct icmp6hdr {
	9
	10	__u8 icmp6_type;
	11	__u8 icmp6_code;
	12	__sum16 icmp6_cksum;
	13
	14
	15	union {
	16	__be32 un_data32[1];
	17	__be16 un_data16[2];
	18	__u8 un_data8[4];
	19
	20	struct icmpv6_echo {
	21	__be16 identifier;
	22	__be16 sequence;
	23	} u_echo;
	24
	25	struct icmpv6_nd_advt {
	26	#if defined(__LITTLE_ENDIAN_BITFIELD)
	27	__u32 reserved:5,
	28	override:1,
	29	solicited:1,
	30	router:1,
	31	reserved2:24;
	32	#elif defined(__BIG_ENDIAN_BITFIELD)
	33	__u32 router:1,
	34	solicited:1,
	35	override:1,
	36	reserved:29;
	37	#else
	38	#error "Please fix <asm/byteorder.h>"
	39	#endif
	40	} u_nd_advt;
	41
	42	struct icmpv6_nd_ra {
	43	__u8 hop_limit;
	44	#if defined(__LITTLE_ENDIAN_BITFIELD)
	45	__u8 reserved:3,
	46	router_pref:2,
	47	home_agent:1,
	48	other:1,
	49	managed:1;
	50
	51	#elif defined(__BIG_ENDIAN_BITFIELD)
	52	__u8 managed:1,
	53	other:1,
	54	home_agent:1,
	55	router_pref:2,
	56	reserved:3;
	57	#else
	58	#error "Please fix <asm/byteorder.h>"
	59	#endif
	60	__be16 rt_lifetime;
	61	} u_nd_ra;
	62
	63	} icmp6_dataun;
	64
	65	#define icmp6_identifier icmp6_dataun.u_echo.identifier
66	#define icmp6_sequence icmp6_dataun.u_echo.sequence
67	#define icmp6_pointer icmp6_dataun.un_data32[0]
68	#define icmp6_mtu icmp6_dataun.un_data32[0]
69	#define icmp6_unused icmp6_dataun.un_data32[0]
70	#define icmp6_maxdelay icmp6_dataun.un_data16[0]
91922a41	71	#define icmp6_datagram_len icmp6_dataun.un_data8[0]
65047fa6 SH	72	#define icmp6_router icmp6_dataun.u_nd_advt.router
	73	#define icmp6_solicited icmp6_dataun.u_nd_advt.solicited
	74	#define icmp6_override icmp6_dataun.u_nd_advt.override
	75	#define icmp6_ndiscreserved icmp6_dataun.u_nd_advt.reserved
	76	#define icmp6_hop_limit icmp6_dataun.u_nd_ra.hop_limit
	77	#define icmp6_addrconf_managed icmp6_dataun.u_nd_ra.managed
	78	#define icmp6_addrconf_other icmp6_dataun.u_nd_ra.other
	79	#define icmp6_rt_lifetime icmp6_dataun.u_nd_ra.rt_lifetime
	80	#define icmp6_router_pref icmp6_dataun.u_nd_ra.router_pref
	81	};
	82
	83
	84	#define ICMPV6_ROUTER_PREF_LOW 0x3
	85	#define ICMPV6_ROUTER_PREF_MEDIUM 0x0
	86	#define ICMPV6_ROUTER_PREF_HIGH 0x1
	87	#define ICMPV6_ROUTER_PREF_INVALID 0x2
	88
	89	#define ICMPV6_DEST_UNREACH 1
	90	#define ICMPV6_PKT_TOOBIG 2
	91	#define ICMPV6_TIME_EXCEED 3
	92	#define ICMPV6_PARAMPROB 4
	93
70de8a7f DA	94	#define ICMPV6_ERRMSG_MAX 127
70de8a7f DA	95
65047fa6 SH	96	#define ICMPV6_INFOMSG_MASK 0x80
	97
	98	#define ICMPV6_ECHO_REQUEST 128
	99	#define ICMPV6_ECHO_REPLY 129
	100	#define ICMPV6_MGM_QUERY 130
	101	#define ICMPV6_MGM_REPORT 131
	102	#define ICMPV6_MGM_REDUCTION 132
	103
	104	#define ICMPV6_NI_QUERY 139
	105	#define ICMPV6_NI_REPLY 140
	106
	107	#define ICMPV6_MLD2_REPORT 143
	108
	109	#define ICMPV6_DHAAD_REQUEST 144
	110	#define ICMPV6_DHAAD_REPLY 145
	111	#define ICMPV6_MOBILE_PREFIX_SOL 146
	112	#define ICMPV6_MOBILE_PREFIX_ADV 147
	113
f79b7733 DA	114	#define ICMPV6_MRDISC_ADV 151
f79b7733 DA	115
70de8a7f DA	116	#define ICMPV6_MSG_MAX 255
70de8a7f DA	117
65047fa6 SH	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_POLICY_FAIL 5
	127	#define ICMPV6_REJECT_ROUTE 6
	128
	129	/*
	130	* Codes for Time Exceeded
	131	*/
	132	#define ICMPV6_EXC_HOPLIMIT 0
	133	#define ICMPV6_EXC_FRAGTIME 1
	134
	135	/*
	136	* Codes for Parameter Problem
	137	*/
	138	#define ICMPV6_HDR_FIELD 0
	139	#define ICMPV6_UNK_NEXTHDR 1
	140	#define ICMPV6_UNK_OPTION 2
	141
	142	/*
	143	* constants for (set\|get)sockopt
	144	*/
	145
	146	#define ICMPV6_FILTER 1
	147
	148	/*
	149	* ICMPV6 filter
	150	*/
	151
	152	#define ICMPV6_FILTER_BLOCK 1
	153	#define ICMPV6_FILTER_PASS 2
	154	#define ICMPV6_FILTER_BLOCKOTHERS 3
	155	#define ICMPV6_FILTER_PASSONLY 4
	156
	157	struct icmp6_filter {
	158	__u32 data[8];
	159	};
	160
	161	/*
	162	* Definitions for MLDv2
	163	*/
	164	#define MLD2_MODE_IS_INCLUDE 1
	165	#define MLD2_MODE_IS_EXCLUDE 2
	166	#define MLD2_CHANGE_TO_INCLUDE 3
	167	#define MLD2_CHANGE_TO_EXCLUDE 4
	168	#define MLD2_ALLOW_NEW_SOURCES 5
	169	#define MLD2_BLOCK_OLD_SOURCES 6
	170
	171	#define MLD2_ALL_MCR_INIT { { { 0xff,0x02,0,0,0,0,0,0,0,0,0,0,0,0,0,0x16 } } }
	172
	173
	174	#endif /* _LINUX_ICMPV6_H */