freebsd-dev/sys/netnatm/natm_proto.c

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/*-
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* 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.
*
* $NetBSD: natm_proto.c,v 1.3 1996/09/18 00:56:41 chuck Exp $
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*/
/*
* protocol layer for access to native mode ATM
*/
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#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
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#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/protosw.h>
#include <sys/domain.h>
#include <net/if.h>
#include <net/netisr.h>
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#include <netinet/in.h>
#include <netnatm/natm.h>
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static void natm_init(void);
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static struct domain natmdomain;
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static struct protosw natmsw[] = {
{
.pr_type = SOCK_STREAM,
.pr_domain = &natmdomain,
.pr_protocol = PROTO_NATMAAL5,
.pr_flags = PR_CONNREQUIRED,
.pr_usrreqs = &natm_usrreqs
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},
{
.pr_type = SOCK_DGRAM,
.pr_domain = &natmdomain,
.pr_protocol = PROTO_NATMAAL5,
.pr_flags = PR_CONNREQUIRED|PR_ATOMIC,
.pr_usrreqs = &natm_usrreqs
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},
{
.pr_type = SOCK_STREAM,
.pr_domain = &natmdomain,
.pr_protocol = PROTO_NATMAAL0,
.pr_flags = PR_CONNREQUIRED,
.pr_usrreqs = &natm_usrreqs
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},
};
static struct domain natmdomain = {
.dom_family = AF_NATM,
.dom_name = "natm",
.dom_init = natm_init,
.dom_protosw = natmsw,
.dom_protoswNPROTOSW = &natmsw[sizeof(natmsw)/sizeof(natmsw[0])],
};
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static int natmqmaxlen = 1000 /* IFQ_MAXLEN */; /* max # of packets on queue */
static struct ifqueue natmintrq;
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#ifdef NATM_STAT
u_int natm_sodropcnt; /* # mbufs dropped due to full sb */
u_int natm_sodropbytes; /* # of bytes dropped */
u_int natm_sookcnt; /* # mbufs ok */
u_int natm_sookbytes; /* # of bytes ok */
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#endif
static void
natm_init(void)
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{
LIST_INIT(&natm_pcbs);
bzero(&natmintrq, sizeof(natmintrq));
natmintrq.ifq_maxlen = natmqmaxlen;
NATM_LOCK_INIT();
mtx_init(&natmintrq.ifq_mtx, "natm_inq", NULL, MTX_DEF);
netisr_register(NETISR_NATM, natmintr, &natmintrq, NETISR_MPSAFE);
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}
DOMAIN_SET(natm);