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Annotation of XNU/bsd/kern/uipc_proto.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * The contents of this file constitute Original Code as defined in and
        !             7:  * are subject to the Apple Public Source License Version 1.1 (the
        !             8:  * "License").  You may not use this file except in compliance with the
        !             9:  * License.  Please obtain a copy of the License at
        !            10:  * http://www.apple.com/publicsource and read it before using this file.
        !            11:  * 
        !            12:  * This Original Code and all software distributed under the License are
        !            13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            17:  * License for the specific language governing rights and limitations
        !            18:  * under the License.
        !            19:  * 
        !            20:  * @APPLE_LICENSE_HEADER_END@
        !            21:  */
        !            22: /* Copyright (c) 1998, 1999 Apple Computer, Inc. All Rights Reserved */
        !            23: /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
        !            24: /*-
        !            25:  * Copyright (c) 1982, 1986, 1993
        !            26:  *     The Regents of the University of California.  All rights reserved.
        !            27:  *
        !            28:  * Redistribution and use in source and binary forms, with or without
        !            29:  * modification, are permitted provided that the following conditions
        !            30:  * are met:
        !            31:  * 1. Redistributions of source code must retain the above copyright
        !            32:  *    notice, this list of conditions and the following disclaimer.
        !            33:  * 2. Redistributions in binary form must reproduce the above copyright
        !            34:  *    notice, this list of conditions and the following disclaimer in the
        !            35:  *    documentation and/or other materials provided with the distribution.
        !            36:  * 3. All advertising materials mentioning features or use of this software
        !            37:  *    must display the following acknowledgement:
        !            38:  *     This product includes software developed by the University of
        !            39:  *     California, Berkeley and its contributors.
        !            40:  * 4. Neither the name of the University nor the names of its contributors
        !            41:  *    may be used to endorse or promote products derived from this software
        !            42:  *    without specific prior written permission.
        !            43:  *
        !            44:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            45:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            46:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            47:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            48:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            49:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            50:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            51:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            52:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            53:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            54:  * SUCH DAMAGE.
        !            55:  *
        !            56:  *     @(#)uipc_proto.c        8.2 (Berkeley) 2/14/95
        !            57:  */
        !            58: 
        !            59: #include <sys/param.h>
        !            60: #include <sys/socket.h>
        !            61: #include <sys/protosw.h>
        !            62: #include <sys/domain.h>
        !            63: #include <sys/mbuf.h>
        !            64: #include <sys/un.h>
        !            65: #include <net/raw_cb.h>
        !            66: #include <sys/sysctl.h>
        !            67: 
        !            68: /*
        !            69:  * Definitions of protocols supported in the UNIX domain.
        !            70:  */
        !            71: 
        !            72: int    uipc_usrreq(), raw_usrreq();
        !            73: void   raw_init(), raw_input(), raw_ctlinput();
        !            74: extern struct domain localdomain;              /* or at least forward */
        !            75: 
        !            76: static struct protosw localsw[] = {
        !            77: { SOCK_STREAM, &localdomain,   0,      PR_CONNREQUIRED|PR_WANTRCVD|PR_RIGHTS,
        !            78:   0,           0,              0,              0,
        !            79:   0,
        !            80:   0,           0,              0,              0,
        !            81:   0,           &uipc_usrreqs
        !            82: },
        !            83: { SOCK_DGRAM,  &localdomain,   0,              PR_ATOMIC|PR_ADDR|PR_RIGHTS,
        !            84:   0,           0,              0,              0,
        !            85:   0,
        !            86:   0,           0,              0,              0,
        !            87:   0,           &uipc_usrreqs
        !            88: },
        !            89: { 0,           0,              0,              0,
        !            90:   raw_input,   0,              raw_ctlinput,   0,
        !            91:   0,
        !            92:   raw_init,    0,              0,              0,
        !            93:   0, &raw_usrreqs
        !            94: }
        !            95: };
        !            96: 
        !            97: int local_proto_count = (sizeof (localsw) / sizeof (struct protosw));
        !            98: 
        !            99: static void pre_unp_init()
        !           100: {      static int localdomain_initted = 0;
        !           101:        register int i;
        !           102:        register struct protosw *pr;
        !           103:        register struct domain *dp = &localdomain;
        !           104: 
        !           105:        for (i=0, pr = &localsw[0]; i<local_proto_count; i++, pr++)
        !           106:                net_add_proto(pr, dp);
        !           107:        unp_init();
        !           108: }
        !           109: 
        !           110: struct domain localdomain =
        !           111:     { AF_LOCAL, "unix", pre_unp_init, unp_externalize, unp_dispose,
        !           112:       localsw};
        !           113: 
        !           114: 
        !           115: 
        !           116: 
        !           117: SYSCTL_NODE(_net, PF_LOCAL, local, CTLFLAG_RW, 0, "Local domain");
        !           118: SYSCTL_NODE(_net_local, SOCK_STREAM, stream, CTLFLAG_RW, 0, "SOCK_STREAM");
        !           119: SYSCTL_NODE(_net_local, SOCK_DGRAM, dgram, CTLFLAG_RW, 0, "SOCK_DGRAM");
        !           120: 

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