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NetBSD/sys/netinet6/in6_pcb.h

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/* $NetBSD: in6_pcb.h,v 1.19 2001/10/24 06:36:38 itojun Exp $ */
/* $KAME: in6_pcb.h,v 1.45 2001/02/09 05:59:46 itojun Exp $ */
/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* Copyright (c) 1982, 1986, 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)in_pcb.h 8.1 (Berkeley) 6/10/93
*/
#ifndef _NETINET6_IN6_PCB_H_
#define _NETINET6_IN6_PCB_H_
#include <sys/queue.h>
/*
* Common structure pcb for internet protocol implementation.
* Here are stored pointers to local and foreign host table
* entries, local and foreign socket numbers, and pointers
* up (to a socket structure) and down (to a protocol-specific)
* control block.
*/
struct icmp6_filter;
struct inpcbpolicy;
struct in6pcb {
struct in6pcb *in6p_next, *in6p_prev;
/* pointers to other pcb's */
struct in6pcb *in6p_head; /* pointer back to chain of
in6pcb's for this protocol */
struct in6_addr in6p_faddr; /* foreign host table entry */
u_int16_t in6p_fport; /* foreign port */
struct in6_addr in6p_laddr; /* local host table entry */
u_int16_t in6p_lport; /* local port */
u_int32_t in6p_flowinfo; /* priority and flowlabel */
struct socket *in6p_socket; /* back pointer to socket */
caddr_t in6p_ppcb; /* pointer to per-protocol pcb */
struct route_in6 in6p_route; /* placeholder for routing entry */
int in6p_flags; /* generic IP6/datagram flags */
int in6p_hops; /* default hop limit */
struct ip6_hdr in6p_ip6; /* header prototype */
struct mbuf *in6p_options; /* IP6 options */
struct ip6_pktopts *in6p_outputopts; /* IP6 options for outgoing packets */
struct ip6_moptions *in6p_moptions; /* IP6 multicast options */
u_short in6p_ifindex;
/* should move the following just after next/prev */
LIST_ENTRY(in6pcb) in6p_hlist; /* hash chain */
u_long in6p_hash; /* hash value */
#if 1 /* IPSEC */
struct inpcbpolicy *in6p_sp; /* security policy. */
#endif
struct icmp6_filter *in6p_icmp6filt;
int in6p_cksum; /* IPV6_CHECKSUM setsockopt */
};
#ifdef _KERNEL
#define in6p_ip6_nxt in6p_ip6.ip6_nxt /* for KAME src sync over BSD*'s */
#endif
/*
* Flags in in6p_flags
* We define KAME's original flags in higher 16 bits as much as possible
* for compatibility with *bsd*s.
*/
#define IN6P_RECVOPTS 0x001000 /* receive incoming IP6 options */
#define IN6P_RECVRETOPTS 0x002000 /* receive IP6 options for reply */
#define IN6P_RECVDSTADDR 0x004000 /* receive IP6 dst address */
#define IN6P_IPV6_V6ONLY 0x008000 /* restrict AF_INET6 socket for v6 */
#define IN6P_PKTINFO 0x010000 /* receive IP6 dst and I/F */
#define IN6P_HOPLIMIT 0x020000 /* receive hoplimit */
#define IN6P_HOPOPTS 0x040000 /* receive hop-by-hop options */
#define IN6P_DSTOPTS 0x080000 /* receive dst options after rthdr */
#define IN6P_RTHDR 0x100000 /* receive routing header */
#define IN6P_RTHDRDSTOPTS 0x200000 /* receive dstoptions before rthdr */
#define IN6P_HIGHPORT 0x1000000 /* user wants "high" port binding */
#define IN6P_LOWPORT 0x2000000 /* user wants "low" port binding */
#define IN6P_ANONPORT 0x4000000 /* port chosen for user */
#define IN6P_FAITH 0x8000000 /* accept FAITH'ed connections */
#if 0 /* obsoleted */
#define IN6P_BINDV6ONLY 0x10000000 /* do not grab IPv4 traffic */
#endif
#define IN6P_CONTROLOPTS (IN6P_PKTINFO|IN6P_HOPLIMIT|IN6P_HOPOPTS|\
IN6P_DSTOPTS|IN6P_RTHDR|IN6P_RTHDRDSTOPTS)
#define IN6PLOOKUP_WILDCARD 1
#define IN6PLOOKUP_SETLOCAL 2
/* compute hash value for foreign and local in6_addr and port */
#define IN6_HASH(faddr, fport, laddr, lport) \
(((faddr)->s6_addr32[0] ^ (faddr)->s6_addr32[1] ^ \
(faddr)->s6_addr32[2] ^ (faddr)->s6_addr32[3] ^ \
(laddr)->s6_addr32[0] ^ (laddr)->s6_addr32[1] ^ \
(laddr)->s6_addr32[2] ^ (laddr)->s6_addr32[3]) \
+ (fport) + (lport))
#define sotoin6pcb(so) ((struct in6pcb *)(so)->so_pcb)
#ifdef _KERNEL
void in6_losing __P((struct in6pcb *));
int in6_pcballoc __P((struct socket *, struct in6pcb *));
int in6_pcbbind __P((struct in6pcb *, struct mbuf *, struct proc *));
int in6_pcbconnect __P((struct in6pcb *, struct mbuf *));
void in6_pcbdetach __P((struct in6pcb *));
void in6_pcbdisconnect __P((struct in6pcb *));
struct in6pcb *
in6_pcblookup __P((struct in6pcb *,
struct in6_addr *, u_int, struct in6_addr *,
u_int, int));
int in6_pcbnotify __P((struct in6pcb *, struct sockaddr *,
u_int, struct sockaddr *, u_int, int, void *,
void (*)(struct in6pcb *, int)));
void in6_pcbpurgeif0 __P((struct in6pcb *, struct ifnet *));
void in6_pcbpurgeif __P((struct in6pcb *, struct ifnet *));
void in6_rtchange __P((struct in6pcb *, int));
void in6_setpeeraddr __P((struct in6pcb *, struct mbuf *));
void in6_setsockaddr __P((struct in6pcb *, struct mbuf *));
/* in in6_src.c */
struct in6_addr *in6_selectsrc __P((struct sockaddr_in6 *,
struct ip6_pktopts *,
struct ip6_moptions *,
struct route_in6 *,
struct in6_addr *, int *));
int in6_selecthlim __P((struct in6pcb *, struct ifnet *));
int in6_pcbsetport __P((struct in6_addr *, struct in6pcb *));
extern struct rtentry *
in6_pcbrtentry __P((struct in6pcb *));
extern struct in6pcb *in6_pcblookup_connect __P((struct in6pcb *,
struct in6_addr *, u_int, struct in6_addr *, u_int, int));
extern struct in6pcb *in6_pcblookup_bind __P((struct in6pcb *,
struct in6_addr *, u_int, int));
#endif /* _KERNEL */
#endif /* !_NETINET6_IN6_PCB_H_ */
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