natm_proto.c revision 142017 
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 142017 2005-02-17 14:21:22Z 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
59NET_NEEDS_GIANT("netnatm");
60
61static struct protosw natmsw[] = {
62{ SOCK_STREAM,	&natmdomain,	PROTO_NATMAAL5, PR_CONNREQUIRED,
63  0,	0,	0,	0,
64#ifdef FREEBSD_USRREQS
65  0,
66#else
67  natm_usrreq,
68#endif
69  0,	0,	0,	0,
70#if defined(__NetBSD__) || defined(__OpenBSD__)
71	natm5_sysctl
72#elif defined(FREEBSD_USRREQS)
73        &natm_usrreqs
74#endif
75},
76{ SOCK_DGRAM,	&natmdomain,	PROTO_NATMAAL5,	PR_CONNREQUIRED | PR_ATOMIC,
77  0,	0,	0,	0,
78#ifdef FREEBSD_USRREQS
79  0,
80#else
81  natm_usrreq,
82#endif
83  0,	0,	0,	0,
84#if defined(__NetBSD__) || defined(__OpenBSD__)
85	natm5_sysctl
86#elif defined(FREEBSD_USRREQS)
87        &natm_usrreqs
88#endif
89},
90{ SOCK_STREAM,	&natmdomain,	PROTO_NATMAAL0, PR_CONNREQUIRED,
91  0,	0,	0,	0,
92#ifdef FREEBSD_USRREQS
93  0,
94#else
95  natm_usrreq,
96#endif
97  0,	0,	0,	0,
98#if defined(__NetBSD__) || defined(__OpenBSD__)
99	natm0_sysctl
100#elif defined(FREEBSD_USRREQS)
101        &natm_usrreqs
102#endif
103},
104};
105
106static struct domain natmdomain =
107    { AF_NATM, "natm", natm_init, 0, 0,
108      natmsw, &natmsw[sizeof(natmsw)/sizeof(natmsw[0])], 0,
109      0, 0, 0};
110
111static int natmqmaxlen = 1000 /* IFQ_MAXLEN */;	/* max # of packets on queue */
112static struct ifqueue natmintrq;
113#ifdef NATM_STAT
114u_int natm_sodropcnt;		/* # mbufs dropped due to full sb */
115u_int natm_sodropbytes;		/* # of bytes dropped */
116u_int natm_sookcnt;		/* # mbufs ok */
117u_int natm_sookbytes;		/* # of bytes ok */
118#endif
119
120static void
121natm_init(void)
122{
123	LIST_INIT(&natm_pcbs);
124	bzero(&natmintrq, sizeof(natmintrq));
125	natmintrq.ifq_maxlen = natmqmaxlen;
126	mtx_init(&natmintrq.ifq_mtx, "natm_inq", NULL, MTX_DEF);
127	netisr_register(NETISR_NATM, natmintr, &natmintrq, 0);
128}
129
130#if defined(__FreeBSD__)
131DOMAIN_SET(natm);
132#endif
133