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

     /*      $NetBSD: natm_proto.c,v 1.13 2008/04/24 11:38:39 ad Exp $       */
     
     /*
      *
      * Copyright (c) 1996 Charles D. Cranor and Washington University.
      * 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. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by Charles D. Cranor and
     *      Washington University.
     * 4. The name of the author may not be used to endorse or promote products
     *    derived from this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
     */
    
    /*
     * protocol layer for access to native mode ATM
     */
    
    #include <sys/cdefs.h>
    __KERNEL_RCSID(0, "$NetBSD: natm_proto.c,v 1.13 2008/04/24 11:38:39 ad Exp $");
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/kernel.h>
    #include <sys/queue.h>
    #include <sys/socket.h>
    #include <sys/protosw.h>
    #include <sys/domain.h>
    #include <sys/mbuf.h>
    
    #include <net/if.h>
    #include <net/radix.h>
    #include <net/route.h>
    
    #include <netinet/in.h>
    
    #include <netnatm/natm.h>
    
    DOMAIN_DEFINE(natmdomain);
    
    static void natm_init(void);
    
    struct npcblist natm_pcbs = LIST_HEAD_INITIALIZER(natm_pcbs);
    struct  ifqueue natmintrq;              /* natm packet input queue */
    int     natmqmaxlen = IFQ_MAXLEN;       /* max # of packets on queue */
    
    PR_WRAP_USRREQ(natm_usrreq)
    
    #define natm_usrreq     natm_usrreq_wrapper
    
    const struct protosw natmsw[] = {
    { .pr_type = SOCK_STREAM,
      .pr_domain = &natmdomain,
      .pr_protocol = PROTO_NATMAAL5,
      .pr_flags = PR_CONNREQUIRED,
      .pr_input = 0,
      .pr_output = 0,
      .pr_ctlinput = 0,
      .pr_ctloutput = 0,
      .pr_usrreq = natm_usrreq,
      .pr_init = 0,
      .pr_fasttimo = 0,
      .pr_slowtimo = 0,
      .pr_drain = 0
    },
    { .pr_type = SOCK_DGRAM,
      .pr_domain = &natmdomain,
      .pr_protocol = PROTO_NATMAAL5,
      .pr_flags = PR_CONNREQUIRED | PR_ATOMIC,
      .pr_input = 0,
      .pr_output = 0,
      .pr_ctlinput = 0,
      .pr_ctloutput = 0,
      .pr_usrreq = natm_usrreq,
      .pr_init = 0,
      .pr_fasttimo = 0,
      .pr_slowtimo = 0,
      .pr_drain = 0
    },
   { .pr_type = SOCK_STREAM,
     .pr_domain = &natmdomain,
     .pr_protocol = PROTO_NATMAAL0,
     .pr_flags = PR_CONNREQUIRED,
     .pr_input = 0,
     .pr_output = 0,
     .pr_ctlinput = 0,
     .pr_ctloutput = 0,
     .pr_usrreq = natm_usrreq,
     .pr_init = 0,
     .pr_fasttimo = 0,
     .pr_slowtimo = 0,
     .pr_drain = 0
   },
   };
   
   struct domain natmdomain = {
           .dom_family = PF_NATM,
           .dom_name = "natm",
           .dom_init = natm_init,
           .dom_protosw = natmsw,
           .dom_protoswNPROTOSW = &natmsw[sizeof(natmsw)/sizeof(natmsw[0])],
           .dom_ifqueues = { &natmintrq, NULL },
           .dom_rtcache = LIST_HEAD_INITIALIZER(natmdomain.dom_rtcache)
   };
   #ifdef NATM_STAT
   u_int natm_sodropcnt = 0;               /* # mbufs dropped due to full sb */
   u_int natm_sodropbytes = 0;             /* # of bytes dropped */
   u_int natm_sookcnt = 0;                 /* # mbufs ok */
   u_int natm_sookbytes = 0;               /* # of bytes ok */
   #endif
   
   void natm_init(void)
   {
           natmintrq.ifq_maxlen = natmqmaxlen;
   }

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