LCOM1920-T02G10

/*        $NetBSD: in6_pcb.h,v 1.46 2015/05/24 15:43:45 rtr 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. 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>

#include <netinet/in_pcb_hdr.h>

#include <netinet/ip6.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        in6pcb {

        struct inpcb_hdr in6p_head;

#define in6p_hash         in6p_head.inph_hash

#define in6p_queue         in6p_head.inph_queue

#define in6p_af                 in6p_head.inph_af

#define in6p_ppcb         in6p_head.inph_ppcb

#define in6p_state         in6p_head.inph_state

#define in6p_portalgo         in6p_head.inph_portalgo

#define in6p_socket         in6p_head.inph_socket

#define in6p_table         in6p_head.inph_table

#define in6p_sp                 in6p_head.inph_sp

        struct        route in6p_route;        /* placeholder for routing entry */

        u_int16_t in6p_fport;                /* foreign port */

        u_int16_t in6p_lport;                /* local port */

        u_int32_t in6p_flowinfo;        /* priority and flowlabel */

        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 */

        struct icmp6_filter *in6p_icmp6filt;

        int        in6p_cksum;                /* IPV6_CHECKSUM setsockopt */

        bool    in6p_bindportonsend;

        struct ip_moptions *in6p_v4moptions;/* IP4 multicast options */

};

#define in6p_faddr        in6p_ip6.ip6_dst

#define in6p_laddr        in6p_ip6.ip6_src

/* states in inp_state: */

#define        IN6P_ATTACHED                INP_ATTACHED

#define        IN6P_BOUND                INP_BOUND

#define        IN6P_CONNECTED                INP_CONNECTED

/*

 * 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_TCLASS                0x400000 /* traffic class */

#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 */

#define IN6P_RFC2292                0x40000000 /* RFC2292 */

#define IN6P_MTU                0x80000000 /* use minimum MTU */

#define IN6P_CONTROLOPTS        (IN6P_PKTINFO|IN6P_HOPLIMIT|IN6P_HOPOPTS|\

                                 IN6P_DSTOPTS|IN6P_RTHDR|IN6P_RTHDRDSTOPTS|\

                                 IN6P_TCLASS|IN6P_RFC2292|\

                                 IN6P_MTU)

#ifdef _KERNEL

/* 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)

void        in6_losing(struct in6pcb *);

void        in6_pcbinit(struct inpcbtable *, int, int);

int        in6_pcballoc(struct socket *, void *);

int        in6_pcbbind(void *, struct sockaddr_in6 *, struct lwp *);

int        in6_pcbconnect(void *, struct sockaddr_in6 *, struct lwp *);

void        in6_pcbdetach(struct in6pcb *);

void        in6_pcbdisconnect(struct in6pcb *);

struct        in6pcb *in6_pcblookup_port(struct inpcbtable *, struct in6_addr *,

                                   u_int, int, struct vestigial_inpcb *);

int        in6_pcbnotify(struct inpcbtable *, const struct sockaddr *,

        u_int, const struct sockaddr *, u_int, int, void *,

        void (*)(struct in6pcb *, int));

void        in6_pcbpurgeif0(struct inpcbtable *, struct ifnet *);

void        in6_pcbpurgeif(struct inpcbtable *, struct ifnet *);

void        in6_pcbstate(struct in6pcb *, int);

void        in6_rtchange(struct in6pcb *, int);

void        in6_setpeeraddr(struct in6pcb *, struct sockaddr_in6 *);

void        in6_setsockaddr(struct in6pcb *, struct sockaddr_in6 *);

/* in in6_src.c */

int        in6_selecthlim(struct in6pcb *, struct ifnet *);

int        in6_selecthlim_rt(struct in6pcb *);

int        in6_pcbsetport(struct sockaddr_in6 *, struct in6pcb *, struct lwp *);

extern struct rtentry *

        in6_pcbrtentry(struct in6pcb *);

extern struct in6pcb *in6_pcblookup_connect(struct inpcbtable *,

                                            const struct in6_addr *, u_int, const struct in6_addr *, u_int, int,

                                            struct vestigial_inpcb *);

extern struct in6pcb *in6_pcblookup_bind(struct inpcbtable *,

        const struct in6_addr *, u_int, int);

#endif /* _KERNEL */

#endif /* !_NETINET6_IN6_PCB_H_ */