[deliverable/linux.git] / include / uapi / linux / in6.h

/*
 *	Types and definitions for AF_INET6 
 *	Linux INET6 implementation 
 *
 *	Authors:
 *	Pedro Roque		<roque@di.fc.ul.pt>	
 *
 *	Sources:
 *	IPv6 Program Interfaces for BSD Systems
 *      <draft-ietf-ipngwg-bsd-api-05.txt>
 *
 *	Advanced Sockets API for IPv6
 *	<draft-stevens-advanced-api-00.txt>
 *
 *	This program is free software; you can redistribute it and/or
 *      modify it under the terms of the GNU General Public License
 *      as published by the Free Software Foundation; either version
 *      2 of the License, or (at your option) any later version.
 */

#ifndef _UAPI_LINUX_IN6_H
#define _UAPI_LINUX_IN6_H

#include <linux/types.h>
#include <linux/libc-compat.h>

/*
 *	IPv6 address structure
 */

#if __UAPI_DEF_IN6_ADDR
struct in6_addr {
	union {
		__u8		u6_addr8[16];
#if __UAPI_DEF_IN6_ADDR_ALT
		__be16		u6_addr16[8];
		__be32		u6_addr32[4];
#endif
	} in6_u;
#define s6_addr			in6_u.u6_addr8
#if __UAPI_DEF_IN6_ADDR_ALT
#define s6_addr16		in6_u.u6_addr16
#define s6_addr32		in6_u.u6_addr32
#endif
};
#endif /* __UAPI_DEF_IN6_ADDR */

#if __UAPI_DEF_SOCKADDR_IN6
struct sockaddr_in6 {
	unsigned short int	sin6_family;    /* AF_INET6 */
	__be16			sin6_port;      /* Transport layer port # */
	__be32			sin6_flowinfo;  /* IPv6 flow information */
	struct in6_addr		sin6_addr;      /* IPv6 address */
	__u32			sin6_scope_id;  /* scope id (new in RFC2553) */
};
#endif /* __UAPI_DEF_SOCKADDR_IN6 */

#if __UAPI_DEF_IPV6_MREQ
struct ipv6_mreq {
	/* IPv6 multicast address of group */
	struct in6_addr ipv6mr_multiaddr;

	/* local IPv6 address of interface */
	int		ipv6mr_ifindex;
};
#endif /* __UAPI_DEF_IVP6_MREQ */

#define ipv6mr_acaddr	ipv6mr_multiaddr

struct in6_flowlabel_req {
	struct in6_addr	flr_dst;
	__be32	flr_label;
	__u8	flr_action;
	__u8	flr_share;
	__u16	flr_flags;
	__u16 	flr_expires;
	__u16	flr_linger;
	__u32	__flr_pad;
	/* Options in format of IPV6_PKTOPTIONS */
};

#define IPV6_FL_A_GET	0
#define IPV6_FL_A_PUT	1
#define IPV6_FL_A_RENEW	2

#define IPV6_FL_F_CREATE	1
#define IPV6_FL_F_EXCL		2
#define IPV6_FL_F_REFLECT	4
#define IPV6_FL_F_REMOTE	8

#define IPV6_FL_S_NONE		0
#define IPV6_FL_S_EXCL		1
#define IPV6_FL_S_PROCESS	2
#define IPV6_FL_S_USER		3
#define IPV6_FL_S_ANY		255


/*
 *	Bitmask constant declarations to help applications select out the 
 *	flow label and priority fields.
 *
 *	Note that this are in host byte order while the flowinfo field of
 *	sockaddr_in6 is in network byte order.
 */

#define IPV6_FLOWINFO_FLOWLABEL		0x000fffff
#define IPV6_FLOWINFO_PRIORITY		0x0ff00000

/* These definitions are obsolete */
#define IPV6_PRIORITY_UNCHARACTERIZED	0x0000
#define IPV6_PRIORITY_FILLER		0x0100
#define IPV6_PRIORITY_UNATTENDED	0x0200
#define IPV6_PRIORITY_RESERVED1		0x0300
#define IPV6_PRIORITY_BULK		0x0400
#define IPV6_PRIORITY_RESERVED2		0x0500
#define IPV6_PRIORITY_INTERACTIVE	0x0600
#define IPV6_PRIORITY_CONTROL		0x0700
#define IPV6_PRIORITY_8			0x0800
#define IPV6_PRIORITY_9			0x0900
#define IPV6_PRIORITY_10		0x0a00
#define IPV6_PRIORITY_11		0x0b00
#define IPV6_PRIORITY_12		0x0c00
#define IPV6_PRIORITY_13		0x0d00
#define IPV6_PRIORITY_14		0x0e00
#define IPV6_PRIORITY_15		0x0f00

/*
 *	IPV6 extension headers
 */
#if __UAPI_DEF_IPPROTO_V6
#define IPPROTO_HOPOPTS		0	/* IPv6 hop-by-hop options	*/
#define IPPROTO_ROUTING		43	/* IPv6 routing header		*/
#define IPPROTO_FRAGMENT	44	/* IPv6 fragmentation header	*/
#define IPPROTO_ICMPV6		58	/* ICMPv6			*/
#define IPPROTO_NONE		59	/* IPv6 no next header		*/
#define IPPROTO_DSTOPTS		60	/* IPv6 destination options	*/
#define IPPROTO_MH		135	/* IPv6 mobility header		*/
#endif /* __UAPI_DEF_IPPROTO_V6 */

/*
 *	IPv6 TLV options.
 */
#define IPV6_TLV_PAD1		0
#define IPV6_TLV_PADN		1
#define IPV6_TLV_ROUTERALERT	5
#define IPV6_TLV_CALIPSO	7	/* RFC 5570 */
#define IPV6_TLV_JUMBO		194
#define IPV6_TLV_HAO		201	/* home address option */

/*
 *	IPV6 socket options
 */
#if __UAPI_DEF_IPV6_OPTIONS
#define IPV6_ADDRFORM		1
#define IPV6_2292PKTINFO	2
#define IPV6_2292HOPOPTS	3
#define IPV6_2292DSTOPTS	4
#define IPV6_2292RTHDR		5
#define IPV6_2292PKTOPTIONS	6
#define IPV6_CHECKSUM		7
#define IPV6_2292HOPLIMIT	8
#define IPV6_NEXTHOP		9
#define IPV6_AUTHHDR		10	/* obsolete */
#define IPV6_FLOWINFO		11

#define IPV6_UNICAST_HOPS	16
#define IPV6_MULTICAST_IF	17
#define IPV6_MULTICAST_HOPS	18
#define IPV6_MULTICAST_LOOP	19
#define IPV6_ADD_MEMBERSHIP	20
#define IPV6_DROP_MEMBERSHIP	21
#define IPV6_ROUTER_ALERT	22
#define IPV6_MTU_DISCOVER	23
#define IPV6_MTU		24
#define IPV6_RECVERR		25
#define IPV6_V6ONLY		26
#define IPV6_JOIN_ANYCAST	27
#define IPV6_LEAVE_ANYCAST	28

/* IPV6_MTU_DISCOVER values */
#define IPV6_PMTUDISC_DONT		0
#define IPV6_PMTUDISC_WANT		1
#define IPV6_PMTUDISC_DO		2
#define IPV6_PMTUDISC_PROBE		3
/* same as IPV6_PMTUDISC_PROBE, provided for symetry with IPv4
 * also see comments on IP_PMTUDISC_INTERFACE
 */
#define IPV6_PMTUDISC_INTERFACE		4
/* weaker version of IPV6_PMTUDISC_INTERFACE, which allows packets to
 * get fragmented if they exceed the interface mtu
 */
#define IPV6_PMTUDISC_OMIT		5

/* Flowlabel */
#define IPV6_FLOWLABEL_MGR	32
#define IPV6_FLOWINFO_SEND	33

#define IPV6_IPSEC_POLICY	34
#define IPV6_XFRM_POLICY	35
#define IPV6_HDRINCL		36
#endif

/*
 * Multicast:
 * Following socket options are shared between IPv4 and IPv6.
 *
 * MCAST_JOIN_GROUP		42
 * MCAST_BLOCK_SOURCE		43
 * MCAST_UNBLOCK_SOURCE		44
 * MCAST_LEAVE_GROUP		45
 * MCAST_JOIN_SOURCE_GROUP	46
 * MCAST_LEAVE_SOURCE_GROUP	47
 * MCAST_MSFILTER		48
 */

/*
 * Advanced API (RFC3542) (1)
 *
 * Note: IPV6_RECVRTHDRDSTOPTS does not exist. see net/ipv6/datagram.c.
 */

#define IPV6_RECVPKTINFO	49
#define IPV6_PKTINFO		50
#define IPV6_RECVHOPLIMIT	51
#define IPV6_HOPLIMIT		52
#define IPV6_RECVHOPOPTS	53
#define IPV6_HOPOPTS		54
#define IPV6_RTHDRDSTOPTS	55
#define IPV6_RECVRTHDR		56
#define IPV6_RTHDR		57
#define IPV6_RECVDSTOPTS	58
#define IPV6_DSTOPTS		59
#define IPV6_RECVPATHMTU	60
#define IPV6_PATHMTU		61
#define IPV6_DONTFRAG		62
#if 0	/* not yet */
#define IPV6_USE_MIN_MTU	63
#endif

/*
 * Netfilter (1)
 *
 * Following socket options are used in ip6_tables;
 * see include/linux/netfilter_ipv6/ip6_tables.h.
 *
 * IP6T_SO_SET_REPLACE / IP6T_SO_GET_INFO		64
 * IP6T_SO_SET_ADD_COUNTERS / IP6T_SO_GET_ENTRIES	65
 */

/*
 * Advanced API (RFC3542) (2)
 */
#define IPV6_RECVTCLASS		66
#define IPV6_TCLASS		67

/*
 * Netfilter (2)
 *
 * Following socket options are used in ip6_tables;
 * see include/linux/netfilter_ipv6/ip6_tables.h.
 *
 * IP6T_SO_GET_REVISION_MATCH	68
 * IP6T_SO_GET_REVISION_TARGET	69
 * IP6T_SO_ORIGINAL_DST		80
 */

#define IPV6_AUTOFLOWLABEL	70
/* RFC5014: Source address selection */
#define IPV6_ADDR_PREFERENCES	72

#define IPV6_PREFER_SRC_TMP		0x0001
#define IPV6_PREFER_SRC_PUBLIC		0x0002
#define IPV6_PREFER_SRC_PUBTMP_DEFAULT	0x0100
#define IPV6_PREFER_SRC_COA		0x0004
#define IPV6_PREFER_SRC_HOME		0x0400
#define IPV6_PREFER_SRC_CGA		0x0008
#define IPV6_PREFER_SRC_NONCGA		0x0800

/* RFC5082: Generalized Ttl Security Mechanism */
#define IPV6_MINHOPCOUNT		73

#define IPV6_ORIGDSTADDR        74
#define IPV6_RECVORIGDSTADDR    IPV6_ORIGDSTADDR
#define IPV6_TRANSPARENT        75
#define IPV6_UNICAST_IF         76

/*
 * Multicast Routing:
 * see include/uapi/linux/mroute6.h.
 *
 * MRT6_BASE			200
 * ...
 * MRT6_MAX
 */
#endif /* _UAPI_LINUX_IN6_H */
Commit	Line	Data
607ca46e DH	1	/*
	2	* Types and definitions for AF_INET6
	3	* Linux INET6 implementation
	4	*
	5	* Authors:
	6	* Pedro Roque <roque@di.fc.ul.pt>
	7	*
	8	* Sources:
	9	* IPv6 Program Interfaces for BSD Systems
	10	* <draft-ietf-ipngwg-bsd-api-05.txt>
	11	*
	12	* Advanced Sockets API for IPv6
	13	* <draft-stevens-advanced-api-00.txt>
	14	*
	15	* This program is free software; you can redistribute it and/or
	16	* modify it under the terms of the GNU General Public License
	17	* as published by the Free Software Foundation; either version
	18	* 2 of the License, or (at your option) any later version.
	19	*/
	20
	21	#ifndef _UAPI_LINUX_IN6_H
	22	#define _UAPI_LINUX_IN6_H
	23
	24	#include <linux/types.h>
cfd280c9	25	#include <linux/libc-compat.h>
607ca46e DH	26
	27	/*
	28	* IPv6 address structure
	29	*/
	30
cfd280c9	31	#if __UAPI_DEF_IN6_ADDR
607ca46e DH	32	struct in6_addr {
	33	union {
	34	__u8 u6_addr8[16];
cfd280c9	35	#if __UAPI_DEF_IN6_ADDR_ALT
607ca46e DH	36	__be16 u6_addr16[8];
607ca46e DH	37	__be32 u6_addr32[4];
cfd280c9	38	#endif
607ca46e DH	39	} in6_u;
607ca46e DH	40	#define s6_addr in6_u.u6_addr8
cfd280c9	41	#if __UAPI_DEF_IN6_ADDR_ALT
607ca46e DH	42	#define s6_addr16 in6_u.u6_addr16
607ca46e DH	43	#define s6_addr32 in6_u.u6_addr32
cfd280c9	44	#endif
607ca46e	45	};
cfd280c9	46	#endif /* __UAPI_DEF_IN6_ADDR */
607ca46e	47
cfd280c9	48	#if __UAPI_DEF_SOCKADDR_IN6
607ca46e DH	49	struct sockaddr_in6 {
	50	unsigned short int sin6_family; /* AF_INET6 */
	51	__be16 sin6_port; /* Transport layer port # */
	52	__be32 sin6_flowinfo; /* IPv6 flow information */
	53	struct in6_addr sin6_addr; /* IPv6 address */
	54	__u32 sin6_scope_id; /* scope id (new in RFC2553) */
	55	};
cfd280c9	56	#endif /* __UAPI_DEF_SOCKADDR_IN6 */
607ca46e	57
cfd280c9	58	#if __UAPI_DEF_IPV6_MREQ
607ca46e DH	59	struct ipv6_mreq {
	60	/* IPv6 multicast address of group */
	61	struct in6_addr ipv6mr_multiaddr;
	62
	63	/* local IPv6 address of interface */
	64	int ipv6mr_ifindex;
	65	};
cfd280c9	66	#endif /* __UAPI_DEF_IVP6_MREQ */
607ca46e DH	67
	68	#define ipv6mr_acaddr ipv6mr_multiaddr
	69
	70	struct in6_flowlabel_req {
	71	struct in6_addr flr_dst;
	72	__be32 flr_label;
	73	__u8 flr_action;
	74	__u8 flr_share;
	75	__u16 flr_flags;
	76	__u16 flr_expires;
	77	__u16 flr_linger;
	78	__u32 __flr_pad;
	79	/* Options in format of IPV6_PKTOPTIONS */
	80	};
	81
	82	#define IPV6_FL_A_GET 0
	83	#define IPV6_FL_A_PUT 1
	84	#define IPV6_FL_A_RENEW 2
	85
	86	#define IPV6_FL_F_CREATE 1
	87	#define IPV6_FL_F_EXCL 2
df3687ff	88	#define IPV6_FL_F_REFLECT 4
46e5f401	89	#define IPV6_FL_F_REMOTE 8
607ca46e DH	90
	91	#define IPV6_FL_S_NONE 0
	92	#define IPV6_FL_S_EXCL 1
	93	#define IPV6_FL_S_PROCESS 2
	94	#define IPV6_FL_S_USER 3
	95	#define IPV6_FL_S_ANY 255
	96
	97
	98	/*
	99	* Bitmask constant declarations to help applications select out the
	100	* flow label and priority fields.
	101	*
	102	* Note that this are in host byte order while the flowinfo field of
	103	* sockaddr_in6 is in network byte order.
	104	*/
	105
	106	#define IPV6_FLOWINFO_FLOWLABEL 0x000fffff
	107	#define IPV6_FLOWINFO_PRIORITY 0x0ff00000
	108
	109	/* These definitions are obsolete */
	110	#define IPV6_PRIORITY_UNCHARACTERIZED 0x0000
	111	#define IPV6_PRIORITY_FILLER 0x0100
	112	#define IPV6_PRIORITY_UNATTENDED 0x0200
	113	#define IPV6_PRIORITY_RESERVED1 0x0300
	114	#define IPV6_PRIORITY_BULK 0x0400
	115	#define IPV6_PRIORITY_RESERVED2 0x0500
	116	#define IPV6_PRIORITY_INTERACTIVE 0x0600
	117	#define IPV6_PRIORITY_CONTROL 0x0700
	118	#define IPV6_PRIORITY_8 0x0800
	119	#define IPV6_PRIORITY_9 0x0900
	120	#define IPV6_PRIORITY_10 0x0a00
	121	#define IPV6_PRIORITY_11 0x0b00
	122	#define IPV6_PRIORITY_12 0x0c00
	123	#define IPV6_PRIORITY_13 0x0d00
	124	#define IPV6_PRIORITY_14 0x0e00
	125	#define IPV6_PRIORITY_15 0x0f00
	126
	127	/*
	128	* IPV6 extension headers
	129	*/
cfd280c9	130	#if __UAPI_DEF_IPPROTO_V6
ee262ad8 JMM	131	#define IPPROTO_HOPOPTS 0 /* IPv6 hop-by-hop options */
	132	#define IPPROTO_ROUTING 43 /* IPv6 routing header */
	133	#define IPPROTO_FRAGMENT 44 /* IPv6 fragmentation header */
	134	#define IPPROTO_ICMPV6 58 /* ICMPv6 */
	135	#define IPPROTO_NONE 59 /* IPv6 no next header */
	136	#define IPPROTO_DSTOPTS 60 /* IPv6 destination options */
	137	#define IPPROTO_MH 135 /* IPv6 mobility header */
cfd280c9	138	#endif /* __UAPI_DEF_IPPROTO_V6 */
607ca46e DH	139
	140	/*
	141	* IPv6 TLV options.
	142	*/
	143	#define IPV6_TLV_PAD1 0
	144	#define IPV6_TLV_PADN 1
	145	#define IPV6_TLV_ROUTERALERT 5
ceba1832	146	#define IPV6_TLV_CALIPSO 7 /* RFC 5570 */
607ca46e DH	147	#define IPV6_TLV_JUMBO 194
	148	#define IPV6_TLV_HAO 201 /* home address option */
	149
	150	/*
	151	* IPV6 socket options
	152	*/
6d08acd2	153	#if __UAPI_DEF_IPV6_OPTIONS
607ca46e DH	154	#define IPV6_ADDRFORM 1
	155	#define IPV6_2292PKTINFO 2
	156	#define IPV6_2292HOPOPTS 3
	157	#define IPV6_2292DSTOPTS 4
	158	#define IPV6_2292RTHDR 5
	159	#define IPV6_2292PKTOPTIONS 6
	160	#define IPV6_CHECKSUM 7
	161	#define IPV6_2292HOPLIMIT 8
	162	#define IPV6_NEXTHOP 9
	163	#define IPV6_AUTHHDR 10 /* obsolete */
	164	#define IPV6_FLOWINFO 11
	165
	166	#define IPV6_UNICAST_HOPS 16
	167	#define IPV6_MULTICAST_IF 17
	168	#define IPV6_MULTICAST_HOPS 18
	169	#define IPV6_MULTICAST_LOOP 19
	170	#define IPV6_ADD_MEMBERSHIP 20
	171	#define IPV6_DROP_MEMBERSHIP 21
	172	#define IPV6_ROUTER_ALERT 22
	173	#define IPV6_MTU_DISCOVER 23
	174	#define IPV6_MTU 24
	175	#define IPV6_RECVERR 25
	176	#define IPV6_V6ONLY 26
	177	#define IPV6_JOIN_ANYCAST 27
	178	#define IPV6_LEAVE_ANYCAST 28
	179
	180	/* IPV6_MTU_DISCOVER values */
	181	#define IPV6_PMTUDISC_DONT 0
	182	#define IPV6_PMTUDISC_WANT 1
	183	#define IPV6_PMTUDISC_DO 2
	184	#define IPV6_PMTUDISC_PROBE 3
93b36cf3 HFS	185	/* same as IPV6_PMTUDISC_PROBE, provided for symetry with IPv4
	186	* also see comments on IP_PMTUDISC_INTERFACE
	187	*/
	188	#define IPV6_PMTUDISC_INTERFACE 4
0b95227a HFS	189	/* weaker version of IPV6_PMTUDISC_INTERFACE, which allows packets to
	190	* get fragmented if they exceed the interface mtu
	191	*/
	192	#define IPV6_PMTUDISC_OMIT 5
607ca46e DH	193
	194	/* Flowlabel */
	195	#define IPV6_FLOWLABEL_MGR 32
	196	#define IPV6_FLOWINFO_SEND 33
	197
	198	#define IPV6_IPSEC_POLICY 34
	199	#define IPV6_XFRM_POLICY 35
715f504b	200	#define IPV6_HDRINCL 36
6d08acd2	201	#endif
607ca46e DH	202
	203	/*
	204	* Multicast:
	205	* Following socket options are shared between IPv4 and IPv6.
	206	*
	207	* MCAST_JOIN_GROUP 42
	208	* MCAST_BLOCK_SOURCE 43
	209	* MCAST_UNBLOCK_SOURCE 44
	210	* MCAST_LEAVE_GROUP 45
	211	* MCAST_JOIN_SOURCE_GROUP 46
	212	* MCAST_LEAVE_SOURCE_GROUP 47
	213	* MCAST_MSFILTER 48
	214	*/
	215
	216	/*
	217	* Advanced API (RFC3542) (1)
	218	*
	219	* Note: IPV6_RECVRTHDRDSTOPTS does not exist. see net/ipv6/datagram.c.
	220	*/
	221
	222	#define IPV6_RECVPKTINFO 49
	223	#define IPV6_PKTINFO 50
	224	#define IPV6_RECVHOPLIMIT 51
	225	#define IPV6_HOPLIMIT 52
	226	#define IPV6_RECVHOPOPTS 53
	227	#define IPV6_HOPOPTS 54
	228	#define IPV6_RTHDRDSTOPTS 55
	229	#define IPV6_RECVRTHDR 56
	230	#define IPV6_RTHDR 57
	231	#define IPV6_RECVDSTOPTS 58
	232	#define IPV6_DSTOPTS 59
	233	#define IPV6_RECVPATHMTU 60
	234	#define IPV6_PATHMTU 61
	235	#define IPV6_DONTFRAG 62
	236	#if 0 /* not yet */
	237	#define IPV6_USE_MIN_MTU 63
	238	#endif
	239
	240	/*
	241	* Netfilter (1)
	242	*
	243	* Following socket options are used in ip6_tables;
	244	* see include/linux/netfilter_ipv6/ip6_tables.h.
	245	*
	246	* IP6T_SO_SET_REPLACE / IP6T_SO_GET_INFO 64
	247	* IP6T_SO_SET_ADD_COUNTERS / IP6T_SO_GET_ENTRIES 65
	248	*/
	249
	250	/*
	251	* Advanced API (RFC3542) (2)
	252	*/
	253	#define IPV6_RECVTCLASS 66
	254	#define IPV6_TCLASS 67
	255
	256	/*
	257	* Netfilter (2)
	258	*
	259	* Following socket options are used in ip6_tables;
	260	* see include/linux/netfilter_ipv6/ip6_tables.h.
	261	*
	262	* IP6T_SO_GET_REVISION_MATCH 68
	263	* IP6T_SO_GET_REVISION_TARGET 69
121d1e09	264	* IP6T_SO_ORIGINAL_DST 80
607ca46e DH	265	*/
607ca46e DH	266
753a2ad5	267	#define IPV6_AUTOFLOWLABEL 70
607ca46e DH	268	/* RFC5014: Source address selection */
	269	#define IPV6_ADDR_PREFERENCES 72
	270
	271	#define IPV6_PREFER_SRC_TMP 0x0001
	272	#define IPV6_PREFER_SRC_PUBLIC 0x0002
	273	#define IPV6_PREFER_SRC_PUBTMP_DEFAULT 0x0100
	274	#define IPV6_PREFER_SRC_COA 0x0004
	275	#define IPV6_PREFER_SRC_HOME 0x0400
	276	#define IPV6_PREFER_SRC_CGA 0x0008
	277	#define IPV6_PREFER_SRC_NONCGA 0x0800
	278
	279	/* RFC5082: Generalized Ttl Security Mechanism */
	280	#define IPV6_MINHOPCOUNT 73
	281
	282	#define IPV6_ORIGDSTADDR 74
	283	#define IPV6_RECVORIGDSTADDR IPV6_ORIGDSTADDR
	284	#define IPV6_TRANSPARENT 75
	285	#define IPV6_UNICAST_IF 76
	286
	287	/*
	288	* Multicast Routing:
bbb923a4	289	* see include/uapi/linux/mroute6.h.
607ca46e	290	*
bbb923a4 ND	291	* MRT6_BASE 200
	292	* ...
	293	* MRT6_MAX
607ca46e DH	294	*/
607ca46e DH	295	#endif /* _UAPI_LINUX_IN6_H */