/* *	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_ADDRstruct 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_IN6struct 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_MREQstruct 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_JUMBO		194#define IPV6_TLV_HAO		201	/* home address option */ /* *	IPV6 socket 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 /* * 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 */ /* 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 */