ec67eee51f
introduce in6_{recover,embed}scope, for in-kernel scoped-address manipulation.
improve in6_pcbnotify.
196 lines
8.5 KiB
C
196 lines
8.5 KiB
C
/* $NetBSD: in6_pcb.h,v 1.12 2000/07/07 15:54:18 itojun Exp $ */
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/* $KAME: in6_pcb.h,v 1.28 2000/06/09 01:10:12 itojun Exp $ */
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/*
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1982, 1986, 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)in_pcb.h 8.1 (Berkeley) 6/10/93
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*/
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#ifndef _NETINET6_IN6_PCB_H_
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#define _NETINET6_IN6_PCB_H_
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#include <sys/queue.h>
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/*
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* Common structure pcb for internet protocol implementation.
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* Here are stored pointers to local and foreign host table
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* entries, local and foreign socket numbers, and pointers
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* up (to a socket structure) and down (to a protocol-specific)
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* control block.
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*/
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struct icmp6_filter;
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struct inpcbpolicy;
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struct in6pcb {
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struct in6pcb *in6p_next, *in6p_prev;
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/* pointers to other pcb's */
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struct in6pcb *in6p_head; /* pointer back to chain of
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in6pcb's for this protocol */
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struct in6_addr in6p_faddr; /* foreign host table entry */
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u_int16_t in6p_fport; /* foreign port */
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struct in6_addr in6p_laddr; /* local host table entry */
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u_int16_t in6p_lport; /* local port */
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u_int32_t in6p_flowinfo; /* priority and flowlabel */
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struct socket *in6p_socket; /* back pointer to socket */
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caddr_t in6p_ppcb; /* pointer to per-protocol pcb */
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struct route_in6 in6p_route; /* placeholder for routing entry */
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int in6p_flags; /* generic IP6/datagram flags */
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int in6p_hops; /* default hop limit */
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struct ip6_hdr in6p_ip6; /* header prototype */
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struct mbuf *in6p_options; /* IP6 options */
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struct ip6_pktopts *in6p_outputopts; /* IP6 options for outgoing packets */
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struct ip6_moptions *in6p_moptions; /* IP6 multicast options */
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u_short in6p_ifindex;
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/* should move the following just after next/prev */
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LIST_ENTRY(in6pcb) in6p_hlist; /* hash chain */
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u_long in6p_hash; /* hash value */
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#if 1 /*IPSEC*/
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struct inpcbpolicy *in6p_sp; /* security policy. */
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#endif
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struct icmp6_filter *in6p_icmp6filt;
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int in6p_cksum; /* IPV6_CHECKSUM setsockopt */
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};
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#define in6p_ip6_nxt in6p_ip6.ip6_nxt /* for KAME src sync over BSD*'s */
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/*
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* Flags in in6p_flags
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* We define KAME's original flags in higher 16 bits as much as possible
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* for compatibility with *bsd*s.
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*/
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#define IN6P_RECVOPTS 0x001000 /* receive incoming IP6 options */
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#define IN6P_RECVRETOPTS 0x002000 /* receive IP6 options for reply */
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#define IN6P_RECVDSTADDR 0x004000 /* receive IP6 dst address */
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#define IN6P_PKTINFO 0x010000 /* receive IP6 dst and I/F */
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#define IN6P_HOPLIMIT 0x020000 /* receive hoplimit */
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#define IN6P_HOPOPTS 0x040000 /* receive hop-by-hop options */
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#define IN6P_DSTOPTS 0x080000 /* receive dst options after rthdr */
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#define IN6P_RTHDR 0x100000 /* receive routing header */
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#define IN6P_RTHDRDSTOPTS 0x200000 /* receive dstoptions before rthdr */
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#define IN6P_HIGHPORT 0x1000000 /* user wants "high" port binding */
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#define IN6P_LOWPORT 0x2000000 /* user wants "low" port binding */
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#define IN6P_ANONPORT 0x4000000 /* port chosen for user */
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#define IN6P_FAITH 0x8000000 /* accept FAITH'ed connections */
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#define IN6P_BINDV6ONLY 0x10000000 /* do not grab IPv4 traffic */
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#define IN6P_CONTROLOPTS (IN6P_PKTINFO|IN6P_HOPLIMIT|IN6P_HOPOPTS|\
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IN6P_DSTOPTS|IN6P_RTHDR|IN6P_RTHDRDSTOPTS)
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#define IN6PLOOKUP_WILDCARD 1
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#define IN6PLOOKUP_SETLOCAL 2
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/* compute hash value for foreign and local in6_addr and port */
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#define IN6_HASH(faddr, fport, laddr, lport) \
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(((faddr)->s6_addr32[0] ^ (faddr)->s6_addr32[1] ^ \
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(faddr)->s6_addr32[2] ^ (faddr)->s6_addr32[3] ^ \
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(laddr)->s6_addr32[0] ^ (laddr)->s6_addr32[1] ^ \
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(laddr)->s6_addr32[2] ^ (laddr)->s6_addr32[3]) \
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+ (fport) + (lport))
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#define sotoin6pcb(so) ((struct in6pcb *)(so)->so_pcb)
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#ifdef _KERNEL
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void in6_losing __P((struct in6pcb *));
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int in6_pcballoc __P((struct socket *, struct in6pcb *));
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int in6_pcbbind __P((struct in6pcb *, struct mbuf *, struct proc *));
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int in6_pcbconnect __P((struct in6pcb *, struct mbuf *));
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void in6_pcbdetach __P((struct in6pcb *));
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void in6_pcbdisconnect __P((struct in6pcb *));
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struct in6pcb *
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in6_pcblookup __P((struct in6pcb *,
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struct in6_addr *, u_int, struct in6_addr *,
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u_int, int));
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int in6_pcbnotify __P((struct in6pcb *, struct sockaddr *,
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u_int, struct in6_addr *, u_int, int,
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void (*)(struct in6pcb *, int)));
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void in6_pcbpurgeif __P((struct in6pcb *, struct ifnet *));
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void in6_rtchange __P((struct in6pcb *, int));
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void in6_setpeeraddr __P((struct in6pcb *, struct mbuf *));
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void in6_setsockaddr __P((struct in6pcb *, struct mbuf *));
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/* in in6_src.c */
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struct in6_addr *in6_selectsrc __P((struct sockaddr_in6 *,
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struct ip6_pktopts *,
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struct ip6_moptions *,
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struct route_in6 *,
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struct in6_addr *, int *));
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int in6_selecthlim __P((struct in6pcb *, struct ifnet *));
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int in6_pcbsetport __P((struct in6_addr *, struct in6pcb *));
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int in6_embedscope __P((struct in6_addr *, const struct sockaddr_in6 *,
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struct in6pcb *, struct ifnet **));
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int in6_recoverscope __P((struct sockaddr_in6 *, const struct in6_addr *,
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struct ifnet *));
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#ifndef TCP6
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extern struct rtentry *
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in6_pcbrtentry __P((struct in6pcb *));
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extern struct in6pcb *in6_pcblookup_connect __P((struct in6pcb *,
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struct in6_addr *, u_int, struct in6_addr *, u_int, int));
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extern struct in6pcb *in6_pcblookup_bind __P((struct in6pcb *,
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struct in6_addr *, u_int, int));
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#endif
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#endif /* _KERNEL */
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#endif /* !_NETINET6_IN6_PCB_H_ */
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