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Annotation of sys/netnatm/natm_proto.c, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: natm_proto.c,v 1.4 2002/03/14 01:27:12 millert Exp $  */
        !             2:
        !             3: /*
        !             4:  *
        !             5:  * Copyright (c) 1996 Charles D. Cranor and Washington University.
        !             6:  * All rights reserved.
        !             7:  *
        !             8:  * Redistribution and use in source and binary forms, with or without
        !             9:  * modification, are permitted provided that the following conditions
        !            10:  * are met:
        !            11:  * 1. Redistributions of source code must retain the above copyright
        !            12:  *    notice, this list of conditions and the following disclaimer.
        !            13:  * 2. Redistributions in binary form must reproduce the above copyright
        !            14:  *    notice, this list of conditions and the following disclaimer in the
        !            15:  *    documentation and/or other materials provided with the distribution.
        !            16:  * 3. All advertising materials mentioning features or use of this software
        !            17:  *    must display the following acknowledgement:
        !            18:  *      This product includes software developed by Charles D. Cranor and
        !            19:  *      Washington University.
        !            20:  * 4. The name of the author may not be used to endorse or promote products
        !            21:  *    derived from this software without specific prior written permission.
        !            22:  *
        !            23:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
        !            24:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
        !            25:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
        !            26:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
        !            27:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
        !            28:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
        !            29:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
        !            30:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
        !            31:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
        !            32:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
        !            33:  */
        !            34:
        !            35: /*
        !            36:  * protocol layer for access to native mode ATM
        !            37:  */
        !            38:
        !            39: #include <sys/param.h>
        !            40: #include <sys/systm.h>
        !            41: #include <sys/kernel.h>
        !            42: #include <sys/queue.h>
        !            43: #include <sys/socket.h>
        !            44: #include <sys/protosw.h>
        !            45: #include <sys/domain.h>
        !            46: #include <sys/mbuf.h>
        !            47:
        !            48: #include <net/if.h>
        !            49: #include <net/radix.h>
        !            50: #include <net/route.h>
        !            51:
        !            52: #include <netinet/in.h>
        !            53:
        !            54: #include <netnatm/natm.h>
        !            55:
        !            56: extern struct domain natmdomain;
        !            57:
        !            58: static void natm_init(void);
        !            59:
        !            60: struct protosw natmsw[] = {
        !            61: { SOCK_STREAM, &natmdomain,    PROTO_NATMAAL5, PR_CONNREQUIRED,
        !            62:   0,   0,      0,      0,
        !            63:   natm_usrreq,
        !            64:   0,   0,      0,      0,
        !            65: #if defined(__NetBSD__) || defined(__OpenBSD__)
        !            66:        natm5_sysctl
        !            67: #endif
        !            68: },
        !            69: { SOCK_DGRAM,  &natmdomain,    PROTO_NATMAAL5, PR_CONNREQUIRED | PR_ATOMIC,
        !            70:   0,   0,      0,      0,
        !            71:   natm_usrreq,
        !            72:   0,   0,      0,      0,
        !            73: #if defined(__NetBSD__) || defined(__OpenBSD__)
        !            74:        natm5_sysctl
        !            75: #endif
        !            76: },
        !            77: { SOCK_STREAM, &natmdomain,    PROTO_NATMAAL0, PR_CONNREQUIRED,
        !            78:   0,   0,      0,      0,
        !            79:   natm_usrreq,
        !            80:   0,   0,      0,      0,
        !            81: #if defined(__NetBSD__) || defined(__OpenBSD__)
        !            82:        natm0_sysctl
        !            83: #endif
        !            84: },
        !            85: };
        !            86:
        !            87: struct domain natmdomain =
        !            88:     { AF_NATM, "natm", natm_init, 0, 0,
        !            89:       natmsw, &natmsw[sizeof(natmsw)/sizeof(natmsw[0])], 0,
        !            90:       0, 0, 0};
        !            91:
        !            92: struct ifqueue natmintrq;              /* natm packet input queue */
        !            93: int    natmqmaxlen = IFQ_MAXLEN;       /* max # of packets on queue */
        !            94: #ifdef NATM_STAT
        !            95: u_int natm_sodropcnt = 0;              /* # mbufs dropped due to full sb */
        !            96: u_int natm_sodropbytes = 0;            /* # of bytes dropped */
        !            97: u_int natm_sookcnt = 0;                        /* # mbufs ok */
        !            98: u_int natm_sookbytes = 0;              /* # of bytes ok */
        !            99: #endif
        !           100:
        !           101:
        !           102:
        !           103: void natm_init()
        !           104:
        !           105: {
        !           106:   LIST_INIT(&natm_pcbs);
        !           107:   bzero(&natmintrq, sizeof(natmintrq));
        !           108:   natmintrq.ifq_maxlen = natmqmaxlen;
        !           109: }
        !           110:
        !           111: #if defined(__FreeBSD__)
        !           112: DOMAIN_SET(natm);
        !           113: #endif