sys/netnatm/natm_proto.c

   1 /*      $NetBSD: natm_proto.c,v 1.12 2007/12/07 19:46:19 elad 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 1.12 2007/12/07 19:46:19 elad 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 PR_WRAP_USRREQ(natm_usrreq)
  68
  69 #define natm_usrreq     natm_usrreq_wrapper
  70
  71 const struct protosw natmsw[] = {
  72 { .pr_type = SOCK_STREAM,
  73   .pr_domain = &natmdomain,
  74   .pr_protocol = PROTO_NATMAAL5,
  75   .pr_flags = PR_CONNREQUIRED,
  76   .pr_input = 0,
  77   .pr_output = 0,
  78   .pr_ctlinput = 0,
  79   .pr_ctloutput = 0,
  80   .pr_usrreq = natm_usrreq,
  81   .pr_init = 0,
  82   .pr_fasttimo = 0,
  83   .pr_slowtimo = 0,
  84   .pr_drain = 0
  85 },
  86 { .pr_type = SOCK_DGRAM,
  87   .pr_domain = &natmdomain,
  88   .pr_protocol = PROTO_NATMAAL5,
  89   .pr_flags = PR_CONNREQUIRED | PR_ATOMIC,
  90   .pr_input = 0,
  91   .pr_output = 0,
  92   .pr_ctlinput = 0,
  93   .pr_ctloutput = 0,
  94   .pr_usrreq = natm_usrreq,
  95   .pr_init = 0,
  96   .pr_fasttimo = 0,
  97   .pr_slowtimo = 0,
  98   .pr_drain = 0
  99 },
 100 { .pr_type = SOCK_STREAM,
 101   .pr_domain = &natmdomain,
 102   .pr_protocol = PROTO_NATMAAL0,
 103   .pr_flags = PR_CONNREQUIRED,
 104   .pr_input = 0,
 105   .pr_output = 0,
 106   .pr_ctlinput = 0,
 107   .pr_ctloutput = 0,
 108   .pr_usrreq = natm_usrreq,
 109   .pr_init = 0,
 110   .pr_fasttimo = 0,
 111   .pr_slowtimo = 0,
 112   .pr_drain = 0
 113 },
 114 };
 115
 116 struct domain natmdomain = {
 117         .dom_family = PF_NATM,
 118         .dom_name = "natm",
 119         .dom_init = natm_init,
 120         .dom_protosw = natmsw,
 121         .dom_protoswNPROTOSW = &natmsw[sizeof(natmsw)/sizeof(natmsw[0])],
 122         .dom_ifqueues = { &natmintrq, NULL },
 123         .dom_rtcache = LIST_HEAD_INITIALIZER(natmdomain.dom_rtcache)
 124 };
 125 #ifdef NATM_STAT
 126 u_int natm_sodropcnt = 0;               /* # mbufs dropped due to full sb */
 127 u_int natm_sodropbytes = 0;             /* # of bytes dropped */
 128 u_int natm_sookcnt = 0;                 /* # mbufs ok */
 129 u_int natm_sookbytes = 0;               /* # of bytes ok */
 130 #endif
 131
 132 void natm_init(void)
 133 {
 134         natmintrq.ifq_maxlen = natmqmaxlen;
 135 }