LCOM1920-T02G10

/*        $NetBSD: in_pcb.h,v 1.59 2015/05/24 15:43:45 rtr 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 _NETINET_IN_PCB_H_

#define _NETINET_IN_PCB_H_

#include <sys/queue.h>

#include <netinet/in_pcb_hdr.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 inpcb {

        struct inpcb_hdr inp_head;

#define inp_hash        inp_head.inph_hash

#define inp_queue        inp_head.inph_queue

#define inp_af                inp_head.inph_af

#define inp_ppcb        inp_head.inph_ppcb

#define inp_state        inp_head.inph_state

#define inp_portalgo        inp_head.inph_portalgo

#define inp_socket        inp_head.inph_socket

#define inp_table        inp_head.inph_table

#define inp_sp                inp_head.inph_sp

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

        u_int16_t inp_fport;                /* foreign port */

        u_int16_t inp_lport;                /* local port */

        int          inp_flags;                /* generic IP/datagram flags */

        struct          ip inp_ip;                /* header prototype; should have more */

        struct          mbuf *inp_options;        /* IP options */

        struct          ip_moptions *inp_moptions; /* IP multicast options */

        int          inp_errormtu;                /* MTU of last xmit status = EMSGSIZE */

        uint8_t          inp_ip_minttl;

        bool      inp_bindportonsend;

};

#define        inp_faddr        inp_ip.ip_dst

#define        inp_laddr        inp_ip.ip_src

/* flags in inp_flags: */

#define        INP_RECVOPTS                0x0001        /* receive incoming IP options */

#define        INP_RECVRETOPTS                0x0002        /* receive IP options for reply */

#define        INP_RECVDSTADDR                0x0004        /* receive IP dst address */

#define        INP_HDRINCL                0x0008        /* user supplies entire IP header */

#define        INP_HIGHPORT                0x0010        /* (unused; FreeBSD compat) */

#define        INP_LOWPORT                0x0020        /* user wants "low" port binding */

#define        INP_ANONPORT                0x0040        /* port chosen for user */

#define        INP_RECVIF                0x0080        /* receive incoming interface */

/* XXX should move to an UDP control block */

#define INP_ESPINUDP                0x0100        /* ESP over UDP for NAT-T */

#define INP_ESPINUDP_NON_IKE        0x0200        /* ESP over UDP for NAT-T */

#define INP_ESPINUDP_ALL        (INP_ESPINUDP|INP_ESPINUDP_NON_IKE)

#define INP_NOHEADER                0x0400        /* Kernel removes IP header

                                         * before feeding a packet

                                         * to the raw socket user.

                                         * The socket user will

                                         * not supply an IP header.

                                         * Cancels INP_HDRINCL.

                                         */

#define        INP_RECVTTL                0x0800        /* receive incoming IP TTL */

#define        INP_PKTINFO                0x1000        /* receive dst packet info */

#define        INP_RECVPKTINFO                0x2000        /* receive dst packet info */

#define        INP_CONTROLOPTS                (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\

                                INP_RECVIF|INP_RECVTTL|INP_RECVPKTINFO|\

                                INP_PKTINFO)

#define        sotoinpcb(so)                ((struct inpcb *)(so)->so_pcb)

#ifdef _KERNEL

void        in_losing(struct inpcb *);

int        in_pcballoc(struct socket *, void *);

int        in_pcbbind(void *, struct sockaddr_in *, struct lwp *);

int        in_pcbconnect(void *, struct sockaddr_in *, struct lwp *);

void        in_pcbdetach(void *);

void        in_pcbdisconnect(void *);

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

struct inpcb *

        in_pcblookup_port(struct inpcbtable *,

                          struct in_addr, u_int, int, struct vestigial_inpcb *);

struct inpcb *

        in_pcblookup_bind(struct inpcbtable *,

            struct in_addr, u_int);

struct inpcb *

        in_pcblookup_connect(struct inpcbtable *,

                             struct in_addr, u_int, struct in_addr, u_int,

                             struct vestigial_inpcb *);

int        in_pcbnotify(struct inpcbtable *, struct in_addr, u_int,

            struct in_addr, u_int, int, void (*)(struct inpcb *, int));

void        in_pcbnotifyall(struct inpcbtable *, struct in_addr, int,

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

void        in_pcbpurgeif0(struct inpcbtable *, struct ifnet *);

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

void        in_purgeifmcast(struct ip_moptions *, struct ifnet *);

void        in_pcbstate(struct inpcb *, int);

void        in_rtchange(struct inpcb *, int);

void        in_setpeeraddr(struct inpcb *, struct sockaddr_in *);

void        in_setsockaddr(struct inpcb *, struct sockaddr_in *);

struct rtentry *

        in_pcbrtentry(struct inpcb *);

#endif

#endif /* !_NETINET_IN_PCB_H_ */