198 lines
8.6 KiB
C
198 lines
8.6 KiB
C
/* $NetBSD: in6_pcb.h,v 1.50 2018/11/22 04:48:34 knakahara Exp $ */
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/* $KAME: in6_pcb.h,v 1.45 2001/02/09 05:59:46 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. 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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#include <netinet/in_pcb_hdr.h>
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#include <netinet/ip6.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 in6pcb {
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struct inpcb_hdr in6p_head;
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#define in6p_hash in6p_head.inph_hash
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#define in6p_queue in6p_head.inph_queue
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#define in6p_af in6p_head.inph_af
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#define in6p_ppcb in6p_head.inph_ppcb
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#define in6p_state in6p_head.inph_state
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#define in6p_portalgo in6p_head.inph_portalgo
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#define in6p_socket in6p_head.inph_socket
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#define in6p_table in6p_head.inph_table
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#define in6p_sp in6p_head.inph_sp
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struct route in6p_route; /* placeholder for routing entry */
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u_int16_t in6p_fport; /* foreign port */
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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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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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struct icmp6_filter *in6p_icmp6filt;
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int in6p_cksum; /* IPV6_CHECKSUM setsockopt */
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bool in6p_bindportonsend;
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struct ip_moptions *in6p_v4moptions;/* IP4 multicast options */
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};
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#define in6p_faddr in6p_ip6.ip6_dst
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#define in6p_laddr in6p_ip6.ip6_src
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#define in6p_lock(in6p) solock((in6p)->in6p_socket)
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#define in6p_unlock(in6p) sounlock((in6p)->in6p_socket)
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#define in6p_locked(in6p) solocked((in6p)->in6p_socket)
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/* states in inp_state: */
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#define IN6P_ATTACHED INP_ATTACHED
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#define IN6P_BOUND INP_BOUND
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#define IN6P_CONNECTED INP_CONNECTED
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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_IPV6_V6ONLY 0x008000 /* restrict AF_INET6 socket for v6 */
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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_TCLASS 0x400000 /* traffic class */
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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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/* XXX should move to an UDP control block */
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#define IN6P_ESPINUDP INP_ESPINUDP /* ESP over UDP for NAT-T */
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#define IN6P_RFC2292 0x40000000 /* RFC2292 */
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#define IN6P_MTU 0x80000000 /* use minimum MTU */
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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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IN6P_TCLASS|IN6P_RFC2292|\
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IN6P_MTU)
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#ifdef _KERNEL
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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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void in6_losing(struct in6pcb *);
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void in6_pcbinit(struct inpcbtable *, int, int);
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int in6_pcballoc(struct socket *, void *);
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int in6_pcbbind(void *, struct sockaddr_in6 *, struct lwp *);
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int in6_pcbconnect(void *, struct sockaddr_in6 *, struct lwp *);
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void in6_pcbdetach(struct in6pcb *);
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void in6_pcbdisconnect(struct in6pcb *);
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struct in6pcb *in6_pcblookup_port(struct inpcbtable *, struct in6_addr *,
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u_int, int, struct vestigial_inpcb *);
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int in6_pcbnotify(struct inpcbtable *, const struct sockaddr *,
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u_int, const struct sockaddr *, u_int, int, void *,
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void (*)(struct in6pcb *, int));
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void in6_pcbpurgeif0(struct inpcbtable *, struct ifnet *);
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void in6_pcbpurgeif(struct inpcbtable *, struct ifnet *);
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void in6_pcbstate(struct in6pcb *, int);
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void in6_rtchange(struct in6pcb *, int);
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void in6_setpeeraddr(struct in6pcb *, struct sockaddr_in6 *);
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void in6_setsockaddr(struct in6pcb *, struct sockaddr_in6 *);
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/* in in6_src.c */
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int in6_selecthlim(struct in6pcb *, struct ifnet *);
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int in6_selecthlim_rt(struct in6pcb *);
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int in6_pcbsetport(struct sockaddr_in6 *, struct in6pcb *, struct lwp *);
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extern struct rtentry *
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in6_pcbrtentry(struct in6pcb *);
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extern void
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in6_pcbrtentry_unref(struct rtentry *, struct in6pcb *);
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extern struct in6pcb *in6_pcblookup_connect(struct inpcbtable *,
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const struct in6_addr *, u_int, const struct in6_addr *, u_int, int,
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struct vestigial_inpcb *);
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extern struct in6pcb *in6_pcblookup_bind(struct inpcbtable *,
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const struct in6_addr *, u_int, int);
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#endif /* _KERNEL */
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#endif /* !_NETINET6_IN6_PCB_H_ */
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