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//==========================================================================

//

//      sys/kern/uipc_domain.c

//

//     

//

//==========================================================================

// ####BSDALTCOPYRIGHTBEGIN####                                             

// -------------------------------------------                              

// Portions of this software may have been derived from OpenBSD             

// or other sources, and if so are covered by the appropriate copyright     

// and license included herein.                                             

// -------------------------------------------                              

// ####BSDALTCOPYRIGHTEND####                                               

//==========================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):    gthomas

// Contributors: gthomas

// Date:         2000-01-10

// Purpose:      

// Description:  

//              

//

//####DESCRIPTIONEND####

//

//==========================================================================

/*      $OpenBSD: uipc_domain.c,v 1.9 1999/12/08 06:50:17 itojun Exp $  */

/*      $NetBSD: uipc_domain.c,v 1.14 1996/02/09 19:00:44 christos Exp $        */

/*

 * Copyright (c) 1982, 1986, 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.

 *

 *      @(#)uipc_domain.c       8.2 (Berkeley) 10/18/93

 */

#include <sys/param.h>

#include <sys/socket.h>

#include <sys/protosw.h>

#include <sys/domain.h>

#include <sys/mbuf.h>

#include <sys/time.h>

#include <sys/kernel.h>

#ifndef __ECOS

#include <sys/systm.h>

#include <sys/proc.h>

#include <vm/vm.h>

#include <sys/sysctl.h>

#endif

void    pffasttimo __P((void *));

void    pfslowtimo __P((void *));

#if defined (KEY) || defined (IPSEC)

int pfkey_init __P((void));

#endif /* KEY || IPSEC */

#define ADDDOMAIN(x)    { \

        extern struct domain __CONCAT(x,domain); \

        __CONCAT(x,domain.dom_next) = domains; \

        domains = &__CONCAT(x,domain); \

}

void

domaininit()

{

        register struct domain *dp;

        register struct protosw *pr;

#undef unix

        /*

         * KAME NOTE: ADDDOMAIN(route) is moved to the last part so that

         * it will be initialized as the *first* element.  confusing!

         */

#ifndef lint

#ifndef __ECOS

        ADDDOMAIN(unix);

#endif

#ifdef INET

        ADDDOMAIN(inet);

#endif

#ifdef INET6

        ADDDOMAIN(inet6);

#endif /* INET6 */

#if defined (KEY) || defined (IPSEC)

        pfkey_init();

#endif /* KEY || IPSEC */

#ifdef IPX

        ADDDOMAIN(ipx);

#endif

#ifdef NETATALK

        ADDDOMAIN(atalk);

#endif

#ifdef NS

        ADDDOMAIN(ns);

#endif

#ifdef ISO

        ADDDOMAIN(iso);

#endif

#ifdef CCITT

        ADDDOMAIN(ccitt);

#endif

#ifdef notdef /* XXXX */

#include "imp.h"

#if NIMP > 0

        ADDDOMAIN(imp);

#endif

#endif

#ifdef IPSEC

#ifdef __KAME__

        ADDDOMAIN(key);

#endif

#endif

        ADDDOMAIN(route);

#endif

        for (dp = domains; dp; dp = dp->dom_next) {

                if (dp->dom_init)

                        (*dp->dom_init)();

                for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)

                        if (pr->pr_init)

                                (*pr->pr_init)();

        }

if (max_linkhdr < 16)           /* XXX */

max_linkhdr = 16;

        max_hdr = max_linkhdr + max_protohdr;

        max_datalen = MHLEN - max_hdr;

        timeout(pffasttimo, NULL, 1);

        timeout(pfslowtimo, NULL, 1);

}

struct protosw *

pffindtype(family, type)

        int family, type;

{

        register struct domain *dp;

        register struct protosw *pr;

        for (dp = domains; dp; dp = dp->dom_next)

                if (dp->dom_family == family)

                        goto found;

        return (0);

found:

        for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)

                if (pr->pr_type && pr->pr_type == type)

                        return (pr);

        return (0);

}

struct protosw *

pffindproto(family, protocol, type)

        int family, protocol, type;

{

        register struct domain *dp;

        register struct protosw *pr;

        struct protosw *maybe = 0;

        if (family == 0)

                return (0);

        for (dp = domains; dp; dp = dp->dom_next)

                if (dp->dom_family == family)

                        goto found;

        return (0);

found:

        for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) {

                if ((pr->pr_protocol == protocol) && (pr->pr_type == type))

                        return (pr);

                if (type == SOCK_RAW && pr->pr_type == SOCK_RAW &&

                    pr->pr_protocol == 0 && maybe == (struct protosw *)0)

                        maybe = pr;

        }

        return (maybe);

}

#ifndef __ECOS

int

net_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p)

        int *name;

        u_int namelen;

        void *oldp;

        size_t *oldlenp;

        void *newp;

        size_t newlen;

        struct proc *p;

{

        register struct domain *dp;

        register struct protosw *pr;

        int family, protocol;

        /*

         * All sysctl names at this level are nonterminal.

         * PF_KEY: next component is protocol family, and then at least one

         *      additional component.

         * usually: next two components are protocol family and protocol

         *      number, then at least one addition component.

         */

        if (namelen < 2)

                return (EISDIR);                /* overloaded */

        family = name[0];

        if (family == 0)

                return (0);

        for (dp = domains; dp; dp = dp->dom_next)

                if (dp->dom_family == family)

                        goto found;

        return (ENOPROTOOPT);

found:

        switch (family) {

#ifdef IPSEC

#ifdef __KAME__

        case PF_KEY:

                pr = dp->dom_protosw;

                if (pr->pr_sysctl)

                        return ((*pr->pr_sysctl)(name + 1, namelen - 1,

                                oldp, oldlenp, newp, newlen));

                return (ENOPROTOOPT);

#endif

#endif

        default:

                break;

        }

        if (namelen < 3)

                return (EISDIR);                /* overloaded */

        protocol = name[1];

        for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)

                if (pr->pr_protocol == protocol && pr->pr_sysctl)

                        return ((*pr->pr_sysctl)(name + 2, namelen - 2,

                            oldp, oldlenp, newp, newlen));

        return (ENOPROTOOPT);

}

#endif

void

pfctlinput(cmd, sa)

        int cmd;

        struct sockaddr *sa;

{

        register struct domain *dp;

        register struct protosw *pr;

        for (dp = domains; dp; dp = dp->dom_next)

                for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)

                        if (pr->pr_ctlinput)

                                (*pr->pr_ctlinput)(cmd, sa, NULL);

}

void

pfslowtimo(arg)

        void *arg;

{

        register struct domain *dp;

        register struct protosw *pr;

        for (dp = domains; dp; dp = dp->dom_next)

                for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)

                    if (pr->pr_slowtimo) {

                                (*pr->pr_slowtimo)();

                    }

        timeout(pfslowtimo, NULL, hz/2);

}

void

pffasttimo(arg)

        void *arg;

{

        register struct domain *dp;

        register struct protosw *pr;

        for (dp = domains; dp; dp = dp->dom_next)

                for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)

                    if (pr->pr_fasttimo) {

                                (*pr->pr_fasttimo)();

                    }

        timeout(pffasttimo, NULL, hz/5);

}