natm_proto.c revision 122320 
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 122320 2003-11-08 22:28:40Z sam $");
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#ifdef FREEBSD_USRREQS
63  0,
64#else
65  natm_usrreq,
66#endif
67  0,	0,	0,	0,
68#if defined(__NetBSD__) || defined(__OpenBSD__)
69	natm5_sysctl
70#elif defined(FREEBSD_USRREQS)
71        &natm_usrreqs
72#endif
73},
74{ SOCK_DGRAM,	&natmdomain,	PROTO_NATMAAL5,	PR_CONNREQUIRED | PR_ATOMIC,
75  0,	0,	0,	0,
76#ifdef FREEBSD_USRREQS
77  0,
78#else
79  natm_usrreq,
80#endif
81  0,	0,	0,	0,
82#if defined(__NetBSD__) || defined(__OpenBSD__)
83	natm5_sysctl
84#elif defined(FREEBSD_USRREQS)
85        &natm_usrreqs
86#endif
87},
88{ SOCK_STREAM,	&natmdomain,	PROTO_NATMAAL0, PR_CONNREQUIRED,
89  0,	0,	0,	0,
90#ifdef FREEBSD_USRREQS
91  0,
92#else
93  natm_usrreq,
94#endif
95  0,	0,	0,	0,
96#if defined(__NetBSD__) || defined(__OpenBSD__)
97	natm0_sysctl
98#elif defined(FREEBSD_USRREQS)
99        &natm_usrreqs
100#endif
101},
102};
103
104static struct domain natmdomain =
105    { AF_NATM, "natm", natm_init, 0, 0,
106      natmsw, &natmsw[sizeof(natmsw)/sizeof(natmsw[0])], 0,
107      0, 0, 0};
108
109static int natmqmaxlen = 1000 /* IFQ_MAXLEN */;	/* max # of packets on queue */
110static struct ifqueue natmintrq;
111#ifdef NATM_STAT
112u_int natm_sodropcnt;		/* # mbufs dropped due to full sb */
113u_int natm_sodropbytes;		/* # of bytes dropped */
114u_int natm_sookcnt;		/* # mbufs ok */
115u_int natm_sookbytes;		/* # of bytes ok */
116#endif
117
118static void
119natm_init(void)
120{
121	LIST_INIT(&natm_pcbs);
122	bzero(&natmintrq, sizeof(natmintrq));
123	natmintrq.ifq_maxlen = natmqmaxlen;
124	mtx_init(&natmintrq.ifq_mtx, "natm_inq", NULL, MTX_DEF);
125	netisr_register(NETISR_NATM, natmintr, &natmintrq, 0);
126}
127
128#if defined(__FreeBSD__)
129DOMAIN_SET(natm);
130#endif
131