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in6_pcb.h revision 1.11
      1  1.11   itojun /*	$NetBSD: in6_pcb.h,v 1.11 2000/06/05 06:38:23 itojun Exp $	*/
      2  1.11   itojun /*	$KAME: in6_pcb.h,v 1.25 2000/06/05 00:41:58 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  1.11   itojun  *
      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  1.11   itojun  *
     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   1.8   itojun 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  1.10   itojun 	u_int16_t in6p_fport;		/* foreign port */
     90   1.2   itojun 	struct	in6_addr in6p_laddr;	/* local host table entry */
     91  1.10   itojun 	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   1.8   itojun 	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   1.7   itojun /*
    116   1.7   itojun  * Flags in in6p_flags
    117   1.7   itojun  * We define KAME's original flags in higher 16 bits as much as possible
    118   1.7   itojun  * for compatibility with *bsd*s.
    119   1.7   itojun  */
    120   1.7   itojun #define IN6P_RECVOPTS		0x001000 /* receive incoming IP6 options */
    121   1.7   itojun #define IN6P_RECVRETOPTS	0x002000 /* receive IP6 options for reply */
    122   1.7   itojun #define IN6P_RECVDSTADDR	0x004000 /* receive IP6 dst address */
    123   1.7   itojun #define IN6P_PKTINFO		0x010000 /* receive IP6 dst and I/F */
    124   1.7   itojun #define IN6P_HOPLIMIT		0x020000 /* receive hoplimit */
    125   1.7   itojun #define IN6P_HOPOPTS		0x040000 /* receive hop-by-hop options */
    126   1.7   itojun #define IN6P_DSTOPTS		0x080000 /* receive dst options after rthdr */
    127   1.7   itojun #define IN6P_RTHDR		0x100000 /* receive routing header */
    128   1.7   itojun #define IN6P_RTHDRDSTOPTS	0x200000 /* receive dstoptions before rthdr */
    129   1.7   itojun 
    130   1.7   itojun #define IN6P_HIGHPORT		0x1000000 /* user wants "high" port binding */
    131   1.7   itojun #define IN6P_LOWPORT		0x2000000 /* user wants "low" port binding */
    132   1.7   itojun #define IN6P_ANONPORT		0x4000000 /* port chosen for user */
    133   1.7   itojun #define IN6P_FAITH		0x8000000 /* accept FAITH'ed connections */
    134   1.7   itojun #define IN6P_BINDV6ONLY		0x10000000 /* do not grab IPv4 traffic */
    135   1.7   itojun 
    136   1.7   itojun #define IN6P_CONTROLOPTS	(IN6P_PKTINFO|IN6P_HOPLIMIT|IN6P_HOPOPTS|\
    137   1.7   itojun 				 IN6P_DSTOPTS|IN6P_RTHDR|IN6P_RTHDRDSTOPTS)
    138   1.7   itojun 
    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  1.11   itojun 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   1.9  thorpej void	in6_pcbpurgeif __P((struct in6pcb *, struct ifnet *));
    168   1.6   itojun int	in6_pcbsetport __P((struct in6_addr *, struct in6pcb *));
    169   1.2   itojun void	in6_rtchange __P((struct in6pcb *, int));
    170   1.2   itojun void	in6_setpeeraddr __P((struct in6pcb *, struct mbuf *));
    171   1.2   itojun void	in6_setsockaddr __P((struct in6pcb *, struct mbuf *));
    172   1.2   itojun struct 	in6_addr *in6_selectsrc __P((struct sockaddr_in6 *,
    173   1.6   itojun 				     struct ip6_pktopts *,
    174   1.6   itojun 				     struct ip6_moptions *,
    175   1.6   itojun 				     struct route_in6 *,
    176   1.6   itojun 				     struct in6_addr *, int *));
    177   1.6   itojun int	in6_selecthlim __P((struct in6pcb *, struct ifnet *));
    178   1.2   itojun 
    179   1.2   itojun #ifndef TCP6
    180   1.2   itojun extern struct rtentry *
    181   1.2   itojun 	in6_pcbrtentry __P((struct in6pcb *));
    182   1.2   itojun extern struct in6pcb *in6_pcblookup_connect __P((struct in6pcb *,
    183   1.4   itojun 	struct in6_addr *, u_int, struct in6_addr *, u_int, int));
    184   1.2   itojun extern struct in6pcb *in6_pcblookup_bind __P((struct in6pcb *,
    185   1.4   itojun 	struct in6_addr *, u_int, int));
    186   1.2   itojun #endif
    187   1.2   itojun #endif /* _KERNEL */
    188   1.2   itojun 
    189   1.2   itojun #endif /* !_NETINET6_IN6_PCB_H_ */
    190