natm_proto.c revision 148158
1/* $NetBSD: natm_proto.c,v 1.3 1996/09/18 00:56:41 chuck Exp $ */ 2/*- 3 * 4 * Copyright (c) 1996 Charles D. Cranor and Washington University. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Charles D. Cranor and 18 * Washington University. 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34/* 35 * protocol layer for access to native mode ATM 36 */ 37 38#include <sys/cdefs.h> 39__FBSDID("$FreeBSD: head/sys/netnatm/natm_proto.c 148158 2005-07-19 13:36:39Z rwatson $"); 40 41#include <sys/param.h> 42#include <sys/systm.h> 43#include <sys/kernel.h> 44#include <sys/socket.h> 45#include <sys/protosw.h> 46#include <sys/domain.h> 47 48#include <net/if.h> 49#include <net/netisr.h> 50 51#include <netinet/in.h> 52 53#include <netnatm/natm.h> 54 55extern struct domain natmdomain; 56 57static void natm_init(void); 58 59static struct protosw natmsw[] = { 60{ SOCK_STREAM, &natmdomain, PROTO_NATMAAL5, PR_CONNREQUIRED, 61 0, 0, 0, 0, 62 0, 63 0, 0, 0, 0, 64 &natm_usrreqs 65}, 66{ SOCK_DGRAM, &natmdomain, PROTO_NATMAAL5, PR_CONNREQUIRED | PR_ATOMIC, 67 0, 0, 0, 0, 68 0, 69 0, 0, 0, 0, 70 &natm_usrreqs 71}, 72{ SOCK_STREAM, &natmdomain, PROTO_NATMAAL0, PR_CONNREQUIRED, 73 0, 0, 0, 0, 74 0, 75 0, 0, 0, 0, 76 &natm_usrreqs 77}, 78}; 79 80static struct domain natmdomain = 81 { AF_NATM, "natm", natm_init, 0, 0, 82 natmsw, &natmsw[sizeof(natmsw)/sizeof(natmsw[0])], 0, 83 0, 0, 0}; 84 85static int natmqmaxlen = 1000 /* IFQ_MAXLEN */; /* max # of packets on queue */ 86static struct ifqueue natmintrq; 87#ifdef NATM_STAT 88u_int natm_sodropcnt; /* # mbufs dropped due to full sb */ 89u_int natm_sodropbytes; /* # of bytes dropped */ 90u_int natm_sookcnt; /* # mbufs ok */ 91u_int natm_sookbytes; /* # of bytes ok */ 92#endif 93 94static void 95natm_init(void) 96{ 97 LIST_INIT(&natm_pcbs); 98 bzero(&natmintrq, sizeof(natmintrq)); 99 natmintrq.ifq_maxlen = natmqmaxlen; 100 NATM_LOCK_INIT(); 101 mtx_init(&natmintrq.ifq_mtx, "natm_inq", NULL, MTX_DEF); 102 netisr_register(NETISR_NATM, natmintr, &natmintrq, NETISR_MPSAFE); 103} 104 105DOMAIN_SET(natm); 106