xref: /illumos-gate/usr/src/uts/common/inet/ip6.h (revision c61a1653)
17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate  * CDDL HEADER START
37c478bd9Sstevel@tonic-gate  *
47c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
545916cd2Sjpk  * Common Development and Distribution License (the "License").
645916cd2Sjpk  * You may not use this file except in compliance with the License.
77c478bd9Sstevel@tonic-gate  *
87c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
97c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
107c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
117c478bd9Sstevel@tonic-gate  * and limitations under the License.
127c478bd9Sstevel@tonic-gate  *
137c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
147c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
157c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
167c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
177c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
187c478bd9Sstevel@tonic-gate  *
197c478bd9Sstevel@tonic-gate  * CDDL HEADER END
207c478bd9Sstevel@tonic-gate  */
2159927d31SYuri Pankov 
227c478bd9Sstevel@tonic-gate /*
23e11c3f44Smeem  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
247c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
2559927d31SYuri Pankov  * Copyright 2014 Nexenta Systems, Inc.  All rights reserved.
26*c61a1653SRyan Zezeski  * Copyright 2019 Joyent, Inc.
277c478bd9Sstevel@tonic-gate  */
287c478bd9Sstevel@tonic-gate 
297c478bd9Sstevel@tonic-gate #ifndef	_INET_IP6_H
307c478bd9Sstevel@tonic-gate #define	_INET_IP6_H
317c478bd9Sstevel@tonic-gate 
327c478bd9Sstevel@tonic-gate #ifdef	__cplusplus
337c478bd9Sstevel@tonic-gate extern "C" {
347c478bd9Sstevel@tonic-gate #endif
357c478bd9Sstevel@tonic-gate 
367c478bd9Sstevel@tonic-gate #include <sys/isa_defs.h>
377c478bd9Sstevel@tonic-gate 
387c478bd9Sstevel@tonic-gate #ifdef	_KERNEL
397c478bd9Sstevel@tonic-gate /* icmp6_t is used in the prototype of icmp_inbound_error_fanout_v6() */
407c478bd9Sstevel@tonic-gate #include <netinet/icmp6.h>
417c478bd9Sstevel@tonic-gate #endif	/* _KERNEL */
427c478bd9Sstevel@tonic-gate 
437c478bd9Sstevel@tonic-gate /* version number for IPv6 - hard to get this one wrong! */
447c478bd9Sstevel@tonic-gate #define	IPV6_VERSION		6
457c478bd9Sstevel@tonic-gate 
467c478bd9Sstevel@tonic-gate #define	IPV6_HDR_LEN		40
477c478bd9Sstevel@tonic-gate 
487c478bd9Sstevel@tonic-gate #define	IPV6_ADDR_LEN		16
497c478bd9Sstevel@tonic-gate 
507c478bd9Sstevel@tonic-gate /*
517c478bd9Sstevel@tonic-gate  * IPv6 address scopes.  The values of these enums also match the scope
527c478bd9Sstevel@tonic-gate  * field of multicast addresses.
537c478bd9Sstevel@tonic-gate  */
547c478bd9Sstevel@tonic-gate typedef enum {
557c478bd9Sstevel@tonic-gate 	IP6_SCOPE_INTFLOCAL = 1,	/* Multicast addresses only */
567c478bd9Sstevel@tonic-gate 	IP6_SCOPE_LINKLOCAL,
577c478bd9Sstevel@tonic-gate 	IP6_SCOPE_SUBNETLOCAL,		/* Multicast addresses only */
587c478bd9Sstevel@tonic-gate 	IP6_SCOPE_ADMINLOCAL,		/* Multicast addresses only */
597c478bd9Sstevel@tonic-gate 	IP6_SCOPE_SITELOCAL,
607c478bd9Sstevel@tonic-gate 	IP6_SCOPE_GLOBAL
617c478bd9Sstevel@tonic-gate } in6addr_scope_t;
627c478bd9Sstevel@tonic-gate 
63bd670b35SErik Nordmark /* From RFC 3542 - setting for IPV6_USE_MIN_MTU socket option */
64bd670b35SErik Nordmark #define	IPV6_USE_MIN_MTU_MULTICAST	-1	/* Default */
65bd670b35SErik Nordmark #define	IPV6_USE_MIN_MTU_NEVER		0
66bd670b35SErik Nordmark #define	IPV6_USE_MIN_MTU_ALWAYS		1
677c478bd9Sstevel@tonic-gate 
68bd670b35SErik Nordmark #ifdef	_KERNEL
697c478bd9Sstevel@tonic-gate 
707c478bd9Sstevel@tonic-gate /* Extract the scope from a multicast address */
717c478bd9Sstevel@tonic-gate #ifdef _BIG_ENDIAN
727c478bd9Sstevel@tonic-gate #define	IN6_ADDR_MC_SCOPE(addr) \
737c478bd9Sstevel@tonic-gate 	(((addr)->s6_addr32[0] & 0x000f0000) >> 16)
747c478bd9Sstevel@tonic-gate #else
757c478bd9Sstevel@tonic-gate #define	IN6_ADDR_MC_SCOPE(addr) \
767c478bd9Sstevel@tonic-gate 	(((addr)->s6_addr32[0] & 0x00000f00) >> 8)
777c478bd9Sstevel@tonic-gate #endif
787c478bd9Sstevel@tonic-gate 
797c478bd9Sstevel@tonic-gate /* Default IPv4 TTL for IPv6-in-IPv4 encapsulated packets */
807c478bd9Sstevel@tonic-gate #define	IPV6_DEFAULT_HOPS	60	/* XXX What should it be? */
817c478bd9Sstevel@tonic-gate 
827c478bd9Sstevel@tonic-gate /* Max IPv6 TTL */
837c478bd9Sstevel@tonic-gate #define	IPV6_MAX_HOPS	255
847c478bd9Sstevel@tonic-gate 
857c478bd9Sstevel@tonic-gate /* Minimum IPv6 MTU from rfc2460 */
867c478bd9Sstevel@tonic-gate #define	IPV6_MIN_MTU		1280
877c478bd9Sstevel@tonic-gate 
887c478bd9Sstevel@tonic-gate /* EUI-64 based token length */
897c478bd9Sstevel@tonic-gate #define	IPV6_TOKEN_LEN		64
907c478bd9Sstevel@tonic-gate 
917c478bd9Sstevel@tonic-gate /* Length of an advertised IPv6 prefix */
927c478bd9Sstevel@tonic-gate #define	IPV6_PREFIX_LEN		64
937c478bd9Sstevel@tonic-gate 
947c478bd9Sstevel@tonic-gate /* Default and maximum tunnel encapsulation limits.  See RFC 2473. */
957c478bd9Sstevel@tonic-gate #define	IPV6_DEFAULT_ENCAPLIMIT	4
967c478bd9Sstevel@tonic-gate #define	IPV6_MAX_ENCAPLIMIT	255
977c478bd9Sstevel@tonic-gate 
987c478bd9Sstevel@tonic-gate /*
997c478bd9Sstevel@tonic-gate  * Minimum and maximum extension header lengths for IPv6.  The 8-bit
1007c478bd9Sstevel@tonic-gate  * length field of each extension header (see rfc2460) specifies the
1017c478bd9Sstevel@tonic-gate  * number of 8 octet units of data in the header not including the
1027c478bd9Sstevel@tonic-gate  * first 8 octets.  A value of 0 would indicate 8 bytes (0 * 8 + 8),
1037c478bd9Sstevel@tonic-gate  * and 255 would indicate 2048 bytes (255 * 8 + 8).
1047c478bd9Sstevel@tonic-gate  */
1057c478bd9Sstevel@tonic-gate #define	MIN_EHDR_LEN		8
1067c478bd9Sstevel@tonic-gate #define	MAX_EHDR_LEN		2048
1077c478bd9Sstevel@tonic-gate 
1087c478bd9Sstevel@tonic-gate #ifdef _BIG_ENDIAN
1097c478bd9Sstevel@tonic-gate #define	IPV6_DEFAULT_VERS_AND_FLOW	0x60000000
1107c478bd9Sstevel@tonic-gate #define	IPV6_VERS_AND_FLOW_MASK		0xF0000000
1117c478bd9Sstevel@tonic-gate #define	V6_MCAST			0xFF000000
1127c478bd9Sstevel@tonic-gate #define	V6_LINKLOCAL			0xFE800000
1137c478bd9Sstevel@tonic-gate 
1147c478bd9Sstevel@tonic-gate #define	IPV6_FLOW_TCLASS(x)		(((x) & IPV6_FLOWINFO_TCLASS) >> 20)
1157c478bd9Sstevel@tonic-gate #define	IPV6_TCLASS_FLOW(f, c)		(((f) & ~IPV6_FLOWINFO_TCLASS) |\
1167c478bd9Sstevel@tonic-gate 					((c) << 20))
1177c478bd9Sstevel@tonic-gate #else
1187c478bd9Sstevel@tonic-gate #define	IPV6_DEFAULT_VERS_AND_FLOW	0x00000060
1197c478bd9Sstevel@tonic-gate #define	IPV6_VERS_AND_FLOW_MASK		0x000000F0
1207c478bd9Sstevel@tonic-gate #define	V6_MCAST			0x000000FF
1217c478bd9Sstevel@tonic-gate #define	V6_LINKLOCAL			0x000080FE
1227c478bd9Sstevel@tonic-gate 
1237c478bd9Sstevel@tonic-gate #define	IPV6_FLOW_TCLASS(x)		((((x) & 0xf000U) >> 12) |\
1247c478bd9Sstevel@tonic-gate 					(((x) & 0xf) << 4))
1257c478bd9Sstevel@tonic-gate #define	IPV6_TCLASS_FLOW(f, c)		(((f) & ~IPV6_FLOWINFO_TCLASS) |\
1267c478bd9Sstevel@tonic-gate 					((((c) & 0xf) << 12) |\
1277c478bd9Sstevel@tonic-gate 					(((c) & 0xf0) >> 4)))
1287c478bd9Sstevel@tonic-gate #endif
1297c478bd9Sstevel@tonic-gate 
1307c478bd9Sstevel@tonic-gate /*
1317c478bd9Sstevel@tonic-gate  * UTILITY MACROS FOR ADDRESSES.
1327c478bd9Sstevel@tonic-gate  */
1337c478bd9Sstevel@tonic-gate 
1347c478bd9Sstevel@tonic-gate /*
1357c478bd9Sstevel@tonic-gate  * Convert an IPv4 address mask to an IPv6 mask.   Pad with 1-bits.
1367c478bd9Sstevel@tonic-gate  */
1377c478bd9Sstevel@tonic-gate #define	V4MASK_TO_V6(v4, v6)	((v6).s6_addr32[0] = 0xffffffffUL,	\
1387c478bd9Sstevel@tonic-gate 				(v6).s6_addr32[1] = 0xffffffffUL,	\
1397c478bd9Sstevel@tonic-gate 				(v6).s6_addr32[2] = 0xffffffffUL,	\
1407c478bd9Sstevel@tonic-gate 				(v6).s6_addr32[3] = (v4))
1417c478bd9Sstevel@tonic-gate 
1427c478bd9Sstevel@tonic-gate /*
1437c478bd9Sstevel@tonic-gate  * Convert aligned IPv4-mapped IPv6 address into an IPv4 address.
1447c478bd9Sstevel@tonic-gate  * Note: We use "v6" here in definition of macro instead of "(v6)"
1457c478bd9Sstevel@tonic-gate  * Not possible to use "(v6)" here since macro is used with struct
1467c478bd9Sstevel@tonic-gate  * field names as arguments.
1477c478bd9Sstevel@tonic-gate  */
1487c478bd9Sstevel@tonic-gate #define	V4_PART_OF_V6(v6)	v6.s6_addr32[3]
1497c478bd9Sstevel@tonic-gate 
1507c478bd9Sstevel@tonic-gate #ifdef _BIG_ENDIAN
1517c478bd9Sstevel@tonic-gate #define	V6_OR_V4_INADDR_ANY(a)	((a).s6_addr32[3] == 0 &&		\
1527c478bd9Sstevel@tonic-gate 				((a).s6_addr32[2] == 0xffffU ||	\
1537c478bd9Sstevel@tonic-gate 				(a).s6_addr32[2] == 0) &&		\
1547c478bd9Sstevel@tonic-gate 				(a).s6_addr32[1] == 0 &&		\
1557c478bd9Sstevel@tonic-gate 				(a).s6_addr32[0] == 0)
1567c478bd9Sstevel@tonic-gate 
1577c478bd9Sstevel@tonic-gate #else
1588a06b3d6SToomas Soome #define	V6_OR_V4_INADDR_ANY(a)	((a).s6_addr32[3] == 0 &&		\
1597c478bd9Sstevel@tonic-gate 				((a).s6_addr32[2] == 0xffff0000U ||	\
1607c478bd9Sstevel@tonic-gate 				(a).s6_addr32[2] == 0) &&		\
1617c478bd9Sstevel@tonic-gate 				(a).s6_addr32[1] == 0 &&		\
1627c478bd9Sstevel@tonic-gate 				(a).s6_addr32[0] == 0)
1637c478bd9Sstevel@tonic-gate #endif /* _BIG_ENDIAN */
1647c478bd9Sstevel@tonic-gate 
1657c478bd9Sstevel@tonic-gate /* IPv4-mapped CLASSD addresses */
1667c478bd9Sstevel@tonic-gate #ifdef _BIG_ENDIAN
1677c478bd9Sstevel@tonic-gate #define	IN6_IS_ADDR_V4MAPPED_CLASSD(addr) \
1687c478bd9Sstevel@tonic-gate 	(((addr)->_S6_un._S6_u32[2] == 0x0000ffff) && \
1697c478bd9Sstevel@tonic-gate 	(CLASSD((addr)->_S6_un._S6_u32[3])) && \
1707c478bd9Sstevel@tonic-gate 	((addr)->_S6_un._S6_u32[1] == 0) && \
1717c478bd9Sstevel@tonic-gate 	((addr)->_S6_un._S6_u32[0] == 0))
1727c478bd9Sstevel@tonic-gate #else  /* _BIG_ENDIAN */
1737c478bd9Sstevel@tonic-gate #define	IN6_IS_ADDR_V4MAPPED_CLASSD(addr) \
1747c478bd9Sstevel@tonic-gate 	(((addr)->_S6_un._S6_u32[2] == 0xffff0000U) && \
1757c478bd9Sstevel@tonic-gate 	(CLASSD((addr)->_S6_un._S6_u32[3])) && \
1767c478bd9Sstevel@tonic-gate 	((addr)->_S6_un._S6_u32[1] == 0) && \
1777c478bd9Sstevel@tonic-gate 	((addr)->_S6_un._S6_u32[0] == 0))
1787c478bd9Sstevel@tonic-gate #endif /* _BIG_ENDIAN */
1797c478bd9Sstevel@tonic-gate 
1807c478bd9Sstevel@tonic-gate /* Clear an IPv6 addr */
1817c478bd9Sstevel@tonic-gate #define	V6_SET_ZERO(a)		((a).s6_addr32[0] = 0,			\
1827c478bd9Sstevel@tonic-gate 				(a).s6_addr32[1] = 0,			\
1837c478bd9Sstevel@tonic-gate 				(a).s6_addr32[2] = 0,			\
1847c478bd9Sstevel@tonic-gate 				(a).s6_addr32[3] = 0)
1857c478bd9Sstevel@tonic-gate 
1867c478bd9Sstevel@tonic-gate /* Mask comparison: is IPv6 addr a, and'ed with mask m, equal to addr b? */
1877c478bd9Sstevel@tonic-gate #define	V6_MASK_EQ(a, m, b)						\
1887c478bd9Sstevel@tonic-gate 	((((a).s6_addr32[0] & (m).s6_addr32[0]) == (b).s6_addr32[0]) &&	\
1897c478bd9Sstevel@tonic-gate 	(((a).s6_addr32[1] & (m).s6_addr32[1]) == (b).s6_addr32[1]) &&	\
1907c478bd9Sstevel@tonic-gate 	(((a).s6_addr32[2] & (m).s6_addr32[2]) == (b).s6_addr32[2]) &&	\
1917c478bd9Sstevel@tonic-gate 	(((a).s6_addr32[3] & (m).s6_addr32[3]) == (b).s6_addr32[3]))
1927c478bd9Sstevel@tonic-gate 
1937c478bd9Sstevel@tonic-gate #define	V6_MASK_EQ_2(a, m, b)						\
1947c478bd9Sstevel@tonic-gate 	((((a).s6_addr32[0] & (m).s6_addr32[0]) ==			\
1957c478bd9Sstevel@tonic-gate 	    ((b).s6_addr32[0]  & (m).s6_addr32[0])) &&			\
1967c478bd9Sstevel@tonic-gate 	(((a).s6_addr32[1] & (m).s6_addr32[1]) ==			\
1977c478bd9Sstevel@tonic-gate 	    ((b).s6_addr32[1]  & (m).s6_addr32[1])) &&			\
1987c478bd9Sstevel@tonic-gate 	(((a).s6_addr32[2] & (m).s6_addr32[2]) ==			\
1997c478bd9Sstevel@tonic-gate 	    ((b).s6_addr32[2]  & (m).s6_addr32[2])) &&			\
2007c478bd9Sstevel@tonic-gate 	(((a).s6_addr32[3] & (m).s6_addr32[3]) ==			\
2017c478bd9Sstevel@tonic-gate 	    ((b).s6_addr32[3]  & (m).s6_addr32[3])))
2027c478bd9Sstevel@tonic-gate 
2037c478bd9Sstevel@tonic-gate /* Copy IPv6 address (s), logically and'ed with mask (m), into (d) */
2047c478bd9Sstevel@tonic-gate #define	V6_MASK_COPY(s, m, d)						\
2057c478bd9Sstevel@tonic-gate 	((d).s6_addr32[0] = (s).s6_addr32[0] & (m).s6_addr32[0],	\
2067c478bd9Sstevel@tonic-gate 	(d).s6_addr32[1] = (s).s6_addr32[1] & (m).s6_addr32[1],		\
2077c478bd9Sstevel@tonic-gate 	(d).s6_addr32[2] = (s).s6_addr32[2] & (m).s6_addr32[2],		\
2087c478bd9Sstevel@tonic-gate 	(d).s6_addr32[3] = (s).s6_addr32[3] & (m).s6_addr32[3])
2097c478bd9Sstevel@tonic-gate 
2107c478bd9Sstevel@tonic-gate #define	ILL_FRAG_HASH_V6(v6addr, i)					\
2118a06b3d6SToomas Soome 	((ntohl((v6addr).s6_addr32[3]) ^ (i ^ (i >> 8))) %		\
2127c478bd9Sstevel@tonic-gate 						ILL_FRAG_HASH_TBL_COUNT)
2137c478bd9Sstevel@tonic-gate 
214f4b3ec61Sdh 
2157c478bd9Sstevel@tonic-gate /*
2167c478bd9Sstevel@tonic-gate  * GLOBAL EXTERNALS
2177c478bd9Sstevel@tonic-gate  */
2187c478bd9Sstevel@tonic-gate extern const in6_addr_t	ipv6_all_ones;
2197c478bd9Sstevel@tonic-gate extern const in6_addr_t	ipv6_all_zeros;
2207c478bd9Sstevel@tonic-gate extern const in6_addr_t	ipv6_loopback;
2217c478bd9Sstevel@tonic-gate extern const in6_addr_t	ipv6_all_hosts_mcast;
2227c478bd9Sstevel@tonic-gate extern const in6_addr_t	ipv6_all_rtrs_mcast;
2237c478bd9Sstevel@tonic-gate extern const in6_addr_t	ipv6_all_v2rtrs_mcast;
2247c478bd9Sstevel@tonic-gate extern const in6_addr_t	ipv6_solicited_node_mcast;
2257c478bd9Sstevel@tonic-gate extern const in6_addr_t	ipv6_unspecified_group;
2267c478bd9Sstevel@tonic-gate 
2277c478bd9Sstevel@tonic-gate /*
2287c478bd9Sstevel@tonic-gate  * FUNCTION PROTOTYPES
2297c478bd9Sstevel@tonic-gate  */
230bd670b35SErik Nordmark extern void	icmp_param_problem_nexthdr_v6(mblk_t *, boolean_t,
231bd670b35SErik Nordmark     ip_recv_attr_t *);
232bd670b35SErik Nordmark extern void	icmp_pkt2big_v6(mblk_t *, uint32_t, boolean_t,
233bd670b35SErik Nordmark     ip_recv_attr_t *);
234bd670b35SErik Nordmark extern void	icmp_time_exceeded_v6(mblk_t *, uint8_t, boolean_t,
235bd670b35SErik Nordmark     ip_recv_attr_t *);
236bd670b35SErik Nordmark extern void	icmp_unreachable_v6(mblk_t *, uint8_t, boolean_t,
237bd670b35SErik Nordmark     ip_recv_attr_t *);
238bd670b35SErik Nordmark extern mblk_t	*icmp_inbound_v6(mblk_t *, ip_recv_attr_t *);
239bd670b35SErik Nordmark extern void	icmp_inbound_error_fanout_v6(mblk_t *, icmp6_t *,
240bd670b35SErik Nordmark     ip_recv_attr_t *);
241bd670b35SErik Nordmark extern void	icmp_update_out_mib_v6(ill_t *, icmp6_t *);
242bd670b35SErik Nordmark 
243bd670b35SErik Nordmark extern boolean_t conn_wantpacket_v6(conn_t *, ip_recv_attr_t *, ip6_t *);
244bd670b35SErik Nordmark 
2457c478bd9Sstevel@tonic-gate extern in6addr_scope_t	ip_addr_scope_v6(const in6_addr_t *);
246bd670b35SErik Nordmark extern void	ip_build_hdrs_v6(uchar_t *, uint_t, const ip_pkt_t *, uint8_t,
247bd670b35SErik Nordmark     uint32_t);
248bd670b35SErik Nordmark extern void	ip_fanout_udp_multi_v6(mblk_t *, ip6_t *, uint16_t, uint16_t,
249bd670b35SErik Nordmark     ip_recv_attr_t *);
250bd670b35SErik Nordmark extern void	ip_fanout_send_icmp_v6(mblk_t *, uint_t, uint8_t,
251bd670b35SErik Nordmark     ip_recv_attr_t *);
252bd670b35SErik Nordmark extern void	ip_fanout_proto_v6(mblk_t *, ip6_t *, ip_recv_attr_t *);
253bd670b35SErik Nordmark extern int	ip_find_hdr_v6(mblk_t *, ip6_t *, boolean_t, ip_pkt_t *,
254bd670b35SErik Nordmark     uint8_t *);
255bd670b35SErik Nordmark extern in6_addr_t ip_get_dst_v6(ip6_t *, const mblk_t *, boolean_t *);
2567c478bd9Sstevel@tonic-gate extern ip6_rthdr_t	*ip_find_rthdr_v6(ip6_t *, uint8_t *);
2577c478bd9Sstevel@tonic-gate extern boolean_t	ip_hdr_length_nexthdr_v6(mblk_t *, ip6_t *,
25845916cd2Sjpk     uint16_t *, uint8_t **);
259*c61a1653SRyan Zezeski extern uint16_t	ip_hdr_length_v6(mblk_t *, ip6_t *);
260f4b3ec61Sdh extern uint32_t	ip_massage_options_v6(ip6_t *, ip6_rthdr_t *, netstack_t *);
261bd670b35SErik Nordmark extern void	ip_forward_xmit_v6(nce_t *, mblk_t *, ip6_t *, ip_recv_attr_t *,
262bd670b35SErik Nordmark     uint32_t, uint32_t);
263bd670b35SErik Nordmark extern mblk_t	*ip_fraghdr_add_v6(mblk_t *, uint32_t, ip_xmit_attr_t *);
264bd670b35SErik Nordmark extern int	ip_fragment_v6(mblk_t *, nce_t *, iaflags_t, uint_t, uint32_t,
265bd670b35SErik Nordmark     uint32_t, zoneid_t, zoneid_t, pfirepostfrag_t postfragfn,
266bd670b35SErik Nordmark     uintptr_t *ixa_cookie);
267bd670b35SErik Nordmark extern int	ip_process_options_v6(mblk_t *, ip6_t *,
268bd670b35SErik Nordmark     uint8_t *, uint_t, uint8_t, ip_recv_attr_t *);
269bd670b35SErik Nordmark extern void	ip_process_rthdr(mblk_t *, ip6_t *, ip6_rthdr_t *,
270bd670b35SErik Nordmark     ip_recv_attr_t *);
271bd670b35SErik Nordmark extern int	ip_total_hdrs_len_v6(const ip_pkt_t *);
272bd670b35SErik Nordmark extern mblk_t	*ipsec_early_ah_v6(mblk_t *, ip_recv_attr_t *);
2737c478bd9Sstevel@tonic-gate extern int	ipsec_ah_get_hdr_size_v6(mblk_t *, boolean_t);
274bd670b35SErik Nordmark extern void	ip_send_potential_redirect_v6(mblk_t *, ip6_t *, ire_t *,
275bd670b35SErik Nordmark     ip_recv_attr_t *);
2768a06b3d6SToomas Soome extern int	ip_rput_v6(queue_t *, mblk_t *);
277bd670b35SErik Nordmark extern mblk_t	*mld_input(mblk_t *, ip_recv_attr_t *);
2787c478bd9Sstevel@tonic-gate extern void	mld_joingroup(ilm_t *);
2797c478bd9Sstevel@tonic-gate extern void	mld_leavegroup(ilm_t *);
2807c478bd9Sstevel@tonic-gate extern void	mld_timeout_handler(void *);
2817c478bd9Sstevel@tonic-gate 
2827c478bd9Sstevel@tonic-gate extern void	pr_addr_dbg(char *, int, const void *);
283f4b3ec61Sdh extern void	*ip6_kstat_init(netstackid_t, ip6_stat_t *);
284f4b3ec61Sdh extern void	ip6_kstat_fini(netstackid_t, kstat_t *);
285bd670b35SErik Nordmark extern size_t	ip6_get_src_preferences(ip_xmit_attr_t *, uint32_t *);
286bd670b35SErik Nordmark extern int	ip6_set_src_preferences(ip_xmit_attr_t *, uint32_t);
2877c478bd9Sstevel@tonic-gate 
2887c478bd9Sstevel@tonic-gate #endif	/* _KERNEL */
2897c478bd9Sstevel@tonic-gate 
2907c478bd9Sstevel@tonic-gate #ifdef	__cplusplus
2917c478bd9Sstevel@tonic-gate }
2927c478bd9Sstevel@tonic-gate #endif
2937c478bd9Sstevel@tonic-gate 
2947c478bd9Sstevel@tonic-gate #endif	/* _INET_IP6_H */
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