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in6_pcb.h revision 1.5.2.1
      1  1.5.2.1   bouyer /*	$NetBSD: in6_pcb.h,v 1.5.2.1 2000/11/20 18:10:49 bouyer Exp $	*/
      2  1.5.2.1   bouyer /*	$KAME: in6_pcb.h,v 1.28 2000/06/09 01:10:12 itojun Exp $	*/
      3      1.3  thorpej 
      4      1.2   itojun /*
      5      1.2   itojun  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
      6      1.2   itojun  * All rights reserved.
      7  1.5.2.1   bouyer  *
      8      1.2   itojun  * Redistribution and use in source and binary forms, with or without
      9      1.2   itojun  * modification, are permitted provided that the following conditions
     10      1.2   itojun  * are met:
     11      1.2   itojun  * 1. Redistributions of source code must retain the above copyright
     12      1.2   itojun  *    notice, this list of conditions and the following disclaimer.
     13      1.2   itojun  * 2. Redistributions in binary form must reproduce the above copyright
     14      1.2   itojun  *    notice, this list of conditions and the following disclaimer in the
     15      1.2   itojun  *    documentation and/or other materials provided with the distribution.
     16      1.2   itojun  * 3. Neither the name of the project nor the names of its contributors
     17      1.2   itojun  *    may be used to endorse or promote products derived from this software
     18      1.2   itojun  *    without specific prior written permission.
     19  1.5.2.1   bouyer  *
     20      1.2   itojun  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
     21      1.2   itojun  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     22      1.2   itojun  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     23      1.2   itojun  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
     24      1.2   itojun  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     25      1.2   itojun  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     26      1.2   itojun  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     27      1.2   itojun  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     28      1.2   itojun  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     29      1.2   itojun  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     30      1.2   itojun  * SUCH DAMAGE.
     31      1.2   itojun  */
     32      1.2   itojun 
     33      1.2   itojun /*
     34      1.2   itojun  * Copyright (c) 1982, 1986, 1990, 1993
     35      1.2   itojun  *	The Regents of the University of California.  All rights reserved.
     36      1.2   itojun  *
     37      1.2   itojun  * Redistribution and use in source and binary forms, with or without
     38      1.2   itojun  * modification, are permitted provided that the following conditions
     39      1.2   itojun  * are met:
     40      1.2   itojun  * 1. Redistributions of source code must retain the above copyright
     41      1.2   itojun  *    notice, this list of conditions and the following disclaimer.
     42      1.2   itojun  * 2. Redistributions in binary form must reproduce the above copyright
     43      1.2   itojun  *    notice, this list of conditions and the following disclaimer in the
     44      1.2   itojun  *    documentation and/or other materials provided with the distribution.
     45      1.2   itojun  * 3. All advertising materials mentioning features or use of this software
     46      1.2   itojun  *    must display the following acknowledgement:
     47      1.2   itojun  *	This product includes software developed by the University of
     48      1.2   itojun  *	California, Berkeley and its contributors.
     49      1.2   itojun  * 4. Neither the name of the University nor the names of its contributors
     50      1.2   itojun  *    may be used to endorse or promote products derived from this software
     51      1.2   itojun  *    without specific prior written permission.
     52      1.2   itojun  *
     53      1.2   itojun  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     54      1.2   itojun  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     55      1.2   itojun  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     56      1.2   itojun  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     57      1.2   itojun  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     58      1.2   itojun  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     59      1.2   itojun  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     60      1.2   itojun  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     61      1.2   itojun  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     62      1.2   itojun  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     63      1.2   itojun  * SUCH DAMAGE.
     64      1.2   itojun  *
     65      1.2   itojun  *	@(#)in_pcb.h	8.1 (Berkeley) 6/10/93
     66      1.2   itojun  */
     67      1.2   itojun 
     68      1.2   itojun #ifndef _NETINET6_IN6_PCB_H_
     69      1.2   itojun #define _NETINET6_IN6_PCB_H_
     70      1.2   itojun 
     71      1.2   itojun #include <sys/queue.h>
     72      1.2   itojun 
     73      1.2   itojun /*
     74      1.2   itojun  * Common structure pcb for internet protocol implementation.
     75      1.2   itojun  * Here are stored pointers to local and foreign host table
     76      1.2   itojun  * entries, local and foreign socket numbers, and pointers
     77      1.2   itojun  * up (to a socket structure) and down (to a protocol-specific)
     78      1.2   itojun  * control block.
     79      1.2   itojun  */
     80      1.2   itojun struct icmp6_filter;
     81  1.5.2.1   bouyer struct inpcbpolicy;
     82      1.2   itojun 
     83      1.2   itojun struct	in6pcb {
     84      1.2   itojun 	struct	in6pcb *in6p_next, *in6p_prev;
     85      1.2   itojun 					/* pointers to other pcb's */
     86      1.2   itojun 	struct	in6pcb *in6p_head;	/* pointer back to chain of
     87      1.2   itojun 					   in6pcb's for this protocol */
     88      1.2   itojun 	struct	in6_addr in6p_faddr;	/* foreign host table entry */
     89  1.5.2.1   bouyer 	u_int16_t in6p_fport;		/* foreign port */
     90      1.2   itojun 	struct	in6_addr in6p_laddr;	/* local host table entry */
     91  1.5.2.1   bouyer 	u_int16_t in6p_lport;		/* local port */
     92      1.5   itojun 	u_int32_t in6p_flowinfo;	/* priority and flowlabel */
     93      1.2   itojun 	struct	socket *in6p_socket;	/* back pointer to socket */
     94      1.2   itojun 	caddr_t	in6p_ppcb;		/* pointer to per-protocol pcb */
     95      1.2   itojun 	struct	route_in6 in6p_route;	/* placeholder for routing entry */
     96      1.2   itojun 	int	in6p_flags;		/* generic IP6/datagram flags */
     97      1.2   itojun 	int	in6p_hops;		/* default hop limit */
     98      1.2   itojun 	struct	ip6_hdr in6p_ip6;	/* header prototype */
     99      1.2   itojun 	struct	mbuf *in6p_options;   /* IP6 options */
    100      1.2   itojun 	struct	ip6_pktopts *in6p_outputopts; /* IP6 options for outgoing packets */
    101      1.2   itojun 	struct	ip6_moptions *in6p_moptions; /* IP6 multicast options */
    102      1.2   itojun 	u_short	in6p_ifindex;
    103      1.2   itojun 	/* should move the following just after next/prev */
    104      1.2   itojun 	LIST_ENTRY(in6pcb) in6p_hlist;	/* hash chain */
    105      1.2   itojun 	u_long	in6p_hash;		/* hash value */
    106      1.2   itojun #if 1 /*IPSEC*/
    107  1.5.2.1   bouyer 	struct inpcbpolicy *in6p_sp;	/* security policy. */
    108      1.2   itojun #endif
    109      1.2   itojun 	struct icmp6_filter *in6p_icmp6filt;
    110      1.2   itojun 	int	in6p_cksum;		/* IPV6_CHECKSUM setsockopt */
    111      1.2   itojun };
    112      1.2   itojun 
    113      1.2   itojun #define in6p_ip6_nxt in6p_ip6.ip6_nxt  /* for KAME src sync over BSD*'s */
    114      1.2   itojun 
    115  1.5.2.1   bouyer /*
    116  1.5.2.1   bouyer  * Flags in in6p_flags
    117  1.5.2.1   bouyer  * We define KAME's original flags in higher 16 bits as much as possible
    118  1.5.2.1   bouyer  * for compatibility with *bsd*s.
    119  1.5.2.1   bouyer  */
    120  1.5.2.1   bouyer #define IN6P_RECVOPTS		0x001000 /* receive incoming IP6 options */
    121  1.5.2.1   bouyer #define IN6P_RECVRETOPTS	0x002000 /* receive IP6 options for reply */
    122  1.5.2.1   bouyer #define IN6P_RECVDSTADDR	0x004000 /* receive IP6 dst address */
    123  1.5.2.1   bouyer #define IN6P_PKTINFO		0x010000 /* receive IP6 dst and I/F */
    124  1.5.2.1   bouyer #define IN6P_HOPLIMIT		0x020000 /* receive hoplimit */
    125  1.5.2.1   bouyer #define IN6P_HOPOPTS		0x040000 /* receive hop-by-hop options */
    126  1.5.2.1   bouyer #define IN6P_DSTOPTS		0x080000 /* receive dst options after rthdr */
    127  1.5.2.1   bouyer #define IN6P_RTHDR		0x100000 /* receive routing header */
    128  1.5.2.1   bouyer #define IN6P_RTHDRDSTOPTS	0x200000 /* receive dstoptions before rthdr */
    129  1.5.2.1   bouyer 
    130  1.5.2.1   bouyer #define IN6P_HIGHPORT		0x1000000 /* user wants "high" port binding */
    131  1.5.2.1   bouyer #define IN6P_LOWPORT		0x2000000 /* user wants "low" port binding */
    132  1.5.2.1   bouyer #define IN6P_ANONPORT		0x4000000 /* port chosen for user */
    133  1.5.2.1   bouyer #define IN6P_FAITH		0x8000000 /* accept FAITH'ed connections */
    134  1.5.2.1   bouyer #define IN6P_BINDV6ONLY		0x10000000 /* do not grab IPv4 traffic */
    135  1.5.2.1   bouyer 
    136  1.5.2.1   bouyer #define IN6P_CONTROLOPTS	(IN6P_PKTINFO|IN6P_HOPLIMIT|IN6P_HOPOPTS|\
    137  1.5.2.1   bouyer 				 IN6P_DSTOPTS|IN6P_RTHDR|IN6P_RTHDRDSTOPTS)
    138  1.5.2.1   bouyer 
    139      1.2   itojun 
    140      1.2   itojun #define IN6PLOOKUP_WILDCARD	1
    141      1.2   itojun #define IN6PLOOKUP_SETLOCAL	2
    142      1.2   itojun 
    143      1.2   itojun /* compute hash value for foreign and local in6_addr and port */
    144      1.2   itojun #define IN6_HASH(faddr, fport, laddr, lport) 			\
    145      1.2   itojun 	(((faddr)->s6_addr32[0] ^ (faddr)->s6_addr32[1] ^	\
    146      1.2   itojun 	  (faddr)->s6_addr32[2] ^ (faddr)->s6_addr32[3] ^	\
    147      1.2   itojun 	  (laddr)->s6_addr32[0] ^ (laddr)->s6_addr32[1] ^	\
    148      1.2   itojun 	  (laddr)->s6_addr32[2] ^ (laddr)->s6_addr32[3])	\
    149      1.2   itojun 	 + (fport) + (lport))
    150      1.2   itojun 
    151      1.2   itojun #define sotoin6pcb(so)	((struct in6pcb *)(so)->so_pcb)
    152      1.2   itojun 
    153      1.2   itojun #ifdef _KERNEL
    154      1.2   itojun void	in6_losing __P((struct in6pcb *));
    155      1.2   itojun int	in6_pcballoc __P((struct socket *, struct in6pcb *));
    156  1.5.2.1   bouyer int	in6_pcbbind __P((struct in6pcb *, struct mbuf *, struct proc *));
    157      1.2   itojun int	in6_pcbconnect __P((struct in6pcb *, struct mbuf *));
    158      1.2   itojun void	in6_pcbdetach __P((struct in6pcb *));
    159      1.2   itojun void	in6_pcbdisconnect __P((struct in6pcb *));
    160      1.2   itojun struct	in6pcb *
    161      1.2   itojun 	in6_pcblookup __P((struct in6pcb *,
    162      1.2   itojun 			   struct in6_addr *, u_int, struct in6_addr *,
    163      1.2   itojun 			   u_int, int));
    164      1.2   itojun int	in6_pcbnotify __P((struct in6pcb *, struct sockaddr *,
    165      1.2   itojun 			   u_int, struct in6_addr *, u_int, int,
    166      1.2   itojun 			   void (*)(struct in6pcb *, int)));
    167  1.5.2.1   bouyer void	in6_pcbpurgeif __P((struct in6pcb *, struct ifnet *));
    168      1.2   itojun void	in6_rtchange __P((struct in6pcb *, int));
    169      1.2   itojun void	in6_setpeeraddr __P((struct in6pcb *, struct mbuf *));
    170      1.2   itojun void	in6_setsockaddr __P((struct in6pcb *, struct mbuf *));
    171  1.5.2.1   bouyer 
    172  1.5.2.1   bouyer /* in in6_src.c */
    173      1.2   itojun struct 	in6_addr *in6_selectsrc __P((struct sockaddr_in6 *,
    174  1.5.2.1   bouyer 				     struct ip6_pktopts *,
    175  1.5.2.1   bouyer 				     struct ip6_moptions *,
    176  1.5.2.1   bouyer 				     struct route_in6 *,
    177  1.5.2.1   bouyer 				     struct in6_addr *, int *));
    178  1.5.2.1   bouyer int	in6_selecthlim __P((struct in6pcb *, struct ifnet *));
    179  1.5.2.1   bouyer int	in6_pcbsetport __P((struct in6_addr *, struct in6pcb *));
    180  1.5.2.1   bouyer int in6_embedscope __P((struct in6_addr *, const struct sockaddr_in6 *,
    181  1.5.2.1   bouyer 	struct in6pcb *, struct ifnet **));
    182  1.5.2.1   bouyer int in6_recoverscope __P((struct sockaddr_in6 *, const struct in6_addr *,
    183  1.5.2.1   bouyer 	struct ifnet *));
    184      1.2   itojun 
    185      1.2   itojun extern struct rtentry *
    186      1.2   itojun 	in6_pcbrtentry __P((struct in6pcb *));
    187      1.2   itojun extern struct in6pcb *in6_pcblookup_connect __P((struct in6pcb *,
    188      1.4   itojun 	struct in6_addr *, u_int, struct in6_addr *, u_int, int));
    189      1.2   itojun extern struct in6pcb *in6_pcblookup_bind __P((struct in6pcb *,
    190      1.4   itojun 	struct in6_addr *, u_int, int));
    191      1.2   itojun #endif /* _KERNEL */
    192      1.2   itojun 
    193      1.2   itojun #endif /* !_NETINET6_IN6_PCB_H_ */
    194