LCOM1920-T02G10

/*        $NetBSD: domain.h,v 1.32 2015/04/22 19:46:08 roy 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. 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.

 *

 *        @(#)domain.h        8.1 (Berkeley) 6/2/93

 */

#ifndef _SYS_DOMAIN_H_

#define _SYS_DOMAIN_H_

/*

 * Structure per communications domain.

 */

#include <sys/mbuf.h>

#include <sys/socket.h>

#include <net/route.h>

/*

 * Forward structure declarations for function prototypes [sic].

 */

struct        lwp;

struct        mbuf;

struct        ifnet;

struct        ifqueue;

struct  sockaddr;

LIST_HEAD(dom_rtlist, route);

struct        domain {

        int        dom_family;                /* AF_xxx */

        const char *dom_name;

        void        (*dom_init)                /* initialize domain data structures */

                        (void);

        int        (*dom_externalize)        /* externalize access rights */

                        (struct mbuf *, struct lwp *, int);

        void        (*dom_dispose)                /* dispose of internalized rights */

                        (struct mbuf *);

        const struct protosw *dom_protosw, *dom_protoswNPROTOSW;

        int        (*dom_rtattach)                /* initialize routing table */

                        (rtbl_t **, int);

        int        dom_rtoffset;                /* an arg to rtattach, in bits */

        int        dom_maxrtkey;                /* for routing layer */

        void        (*dom_if_up)                /* ifnet brought up */

                        (struct ifnet *);

        void        (*dom_if_down)                /* ifnet brought down */

                        (struct ifnet *);

        void        *(*dom_ifattach)        /* attach af-dependent data on ifnet */

                        (struct ifnet *);

        void        (*dom_ifdetach)                /* detach af-dependent data on ifnet */

                        (struct ifnet *, void *);

        void        (*dom_if_link_state_change)

                        (struct ifnet *, int);

        const void *(*dom_sockaddr_const_addr)(const struct sockaddr *,

                                               socklen_t *);

        void        *(*dom_sockaddr_addr)(struct sockaddr *, socklen_t *);

        int        (*dom_sockaddr_cmp)(const struct sockaddr *,

                                    const struct sockaddr *);

        struct sockaddr *(*dom_sockaddr_externalize)(struct sockaddr *,

                                                     socklen_t,

                                                     const struct sockaddr *);

        const struct sockaddr *dom_sa_any;

        struct ifqueue *dom_ifqueues[2]; /* ifqueue for domain */

        STAILQ_ENTRY(domain) dom_link;

        struct        mowner dom_mowner;

        uint_fast8_t        dom_sa_cmpofs;

        uint_fast8_t        dom_sa_cmplen;

        struct dom_rtlist dom_rtcache;

};

STAILQ_HEAD(domainhead,domain);

#ifdef _KERNEL

#define        DOMAIN_DEFINE(name)        \

        extern struct domain name; \

        __link_set_add_data(domains, name)

#define        DOMAIN_FOREACH(dom)        STAILQ_FOREACH(dom, &domains, dom_link)

extern struct domainhead domains;

void domain_attach(struct domain *);

void domaininit(bool);

#endif

#endif /* !_SYS_DOMAIN_H_ */