FreeBSD/Linux Kernel Cross Reference
sys/kern/uipc_proto.c

     /*-
      * 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.
     *
     *      @(#)uipc_proto.c        8.1 (Berkeley) 6/10/93
     * $FreeBSD: src/sys/kern/uipc_proto.c,v 1.21.2.1 2002/03/09 05:22:23 dd Exp $
     */
    
    #include <sys/param.h>
    #include <sys/kernel.h>
    #include <sys/domain.h>
    #include <sys/protosw.h>
    #include <sys/socket.h>
    #include <sys/queue.h>
    #include <sys/sysctl.h>
    #include <sys/un.h>
    
    #include <net/raw_cb.h>
    
    /*
     * Definitions of protocols supported in the LOCAL domain.
     */
    
    static struct protosw localsw[] = {
        {
            .pr_type = SOCK_STREAM,
            .pr_domain = &localdomain,
            .pr_protocol = 0,
            .pr_flags = PR_CONNREQUIRED|PR_WANTRCVD|PR_RIGHTS|PR_SYNC_PORT,
            .pr_ctloutput = uipc_ctloutput,
            .pr_usrreqs = &uipc_usrreqs
        },
        {
            .pr_type = SOCK_SEQPACKET,
            .pr_domain = &localdomain,
            .pr_protocol = 0,
            .pr_flags = PR_CONNREQUIRED|PR_WANTRCVD|PR_RIGHTS|PR_SYNC_PORT|
                        PR_ATOMIC,
            .pr_ctloutput = uipc_ctloutput,
            .pr_usrreqs = &uipc_usrreqs
        },
        {
            .pr_type = SOCK_DGRAM,
            .pr_domain = &localdomain,
            .pr_protocol = 0,
            .pr_flags = PR_RIGHTS|PR_SYNC_PORT|PR_ATOMIC|PR_ADDR,
            .pr_ctloutput = NULL,
            .pr_usrreqs = &uipc_usrreqs
        },
        {
            .pr_type = 0,
            .pr_protocol = 0,
            .pr_flags = PR_SYNC_PORT,
            .pr_ctlinput = raw_ctlinput,
            .pr_ctloutput = NULL,
            .pr_init = raw_init,
            .pr_usrreqs = &raw_usrreqs
        }
    };
    
    struct domain localdomain = {
            AF_LOCAL, "local", unp_init, unp_externalize, unp_dispose,
            localsw, &localsw[NELEM(localsw)],
    };
    
    DOMAIN_SET(local);
    
    SYSCTL_NODE(_net, PF_LOCAL, local, CTLFLAG_RW, 0, "Local domain");
    SYSCTL_NODE(_net_local, SOCK_STREAM, stream, CTLFLAG_RW, 0, "SOCK_STREAM");
    SYSCTL_NODE(_net_local, SOCK_SEQPACKET, seqpacket, CTLFLAG_RW, 0,
                            "SOCK_SEQPACKET");
    SYSCTL_NODE(_net_local, SOCK_DGRAM, dgram, CTLFLAG_RW, 0, "SOCK_DGRAM");

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