The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/netnatm/natm_proto.c

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    1 /*      $NetBSD: natm_proto.c,v 1.9.6.1 2008/02/22 22:00:00 bouyer 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/cdefs.h>
   40 __KERNEL_RCSID(0, "$NetBSD: natm_proto.c,v 1.9.6.1 2008/02/22 22:00:00 bouyer Exp $");
   41 
   42 #include <sys/param.h>
   43 #include <sys/systm.h>
   44 #include <sys/kernel.h>
   45 #include <sys/queue.h>
   46 #include <sys/socket.h>
   47 #include <sys/protosw.h>
   48 #include <sys/domain.h>
   49 #include <sys/mbuf.h>
   50 
   51 #include <net/if.h>
   52 #include <net/radix.h>
   53 #include <net/route.h>
   54 
   55 #include <netinet/in.h>
   56 
   57 #include <netnatm/natm.h>
   58 
   59 DOMAIN_DEFINE(natmdomain);
   60 
   61 static void natm_init(void);
   62 
   63 struct npcblist natm_pcbs = LIST_HEAD_INITIALIZER(natm_pcbs);
   64 struct  ifqueue natmintrq;              /* natm packet input queue */
   65 int     natmqmaxlen = IFQ_MAXLEN;       /* max # of packets on queue */
   66 
   67 const struct protosw natmsw[] = {
   68 { SOCK_STREAM,  &natmdomain,    PROTO_NATMAAL5, PR_CONNREQUIRED,
   69   0,    0,      0,      0,
   70   natm_usrreq,
   71   0,    0,      0,      0,
   72 },
   73 { SOCK_DGRAM,   &natmdomain,    PROTO_NATMAAL5, PR_CONNREQUIRED | PR_ATOMIC,
   74   0,    0,      0,      0,
   75   natm_usrreq,
   76   0,    0,      0,      0,
   77 },
   78 { SOCK_STREAM,  &natmdomain,    PROTO_NATMAAL0, PR_CONNREQUIRED,
   79   0,    0,      0,      0,
   80   natm_usrreq,
   81   0,    0,      0,      0,
   82 },
   83 };
   84 
   85 struct domain natmdomain = {
   86         .dom_family = PF_NATM,
   87         .dom_name = "natm",
   88         .dom_init = natm_init,
   89         .dom_protosw = natmsw,
   90         .dom_protoswNPROTOSW = &natmsw[sizeof(natmsw)/sizeof(natmsw[0])],
   91         .dom_ifqueues = { &natmintrq, NULL },
   92 };
   93 #ifdef NATM_STAT
   94 u_int natm_sodropcnt = 0;               /* # mbufs dropped due to full sb */
   95 u_int natm_sodropbytes = 0;             /* # of bytes dropped */
   96 u_int natm_sookcnt = 0;                 /* # mbufs ok */
   97 u_int natm_sookbytes = 0;               /* # of bytes ok */
   98 #endif
   99 
  100 void natm_init(void)
  101 {
  102         natmintrq.ifq_maxlen = natmqmaxlen;
  103 }

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