natm_proto.c revision 298310 
1/*-
2 * Copyright (c) 1996 Charles D. Cranor and Washington University.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *      This product includes software developed by Charles D. Cranor and
16 *      Washington University.
17 * 4. The name of the author may not be used to endorse or promote products
18 *    derived from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 *
31 * $NetBSD: natm_proto.c,v 1.3 1996/09/18 00:56:41 chuck Exp $
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 298310 2016-04-19 23:48:27Z pfg $");
40
41#include <sys/param.h>
42#include <sys/systm.h>
43#include <sys/kernel.h>
44#include <sys/lock.h>
45#include <sys/mutex.h>
46#include <sys/socket.h>
47#include <sys/protosw.h>
48#include <sys/domain.h>
49
50#include <net/if.h>
51#include <net/netisr.h>
52
53#include <netinet/in.h>
54
55#include <netnatm/natm.h>
56
57static	void natm_init(void);
58
59static struct domain natmdomain;
60
61static struct protosw natmsw[] = {
62{
63	.pr_type =		SOCK_STREAM,
64	.pr_domain =		&natmdomain,
65	.pr_protocol =		PROTO_NATMAAL5,
66	.pr_flags =		PR_CONNREQUIRED,
67	.pr_usrreqs =		&natm_usrreqs
68},
69{
70	.pr_type =		SOCK_DGRAM,
71	.pr_domain =		&natmdomain,
72	.pr_protocol =		PROTO_NATMAAL5,
73	.pr_flags =		PR_CONNREQUIRED|PR_ATOMIC,
74	.pr_usrreqs =		&natm_usrreqs
75},
76{
77	.pr_type =		SOCK_STREAM,
78	.pr_domain =		&natmdomain,
79	.pr_protocol =		PROTO_NATMAAL0,
80	.pr_flags =		PR_CONNREQUIRED,
81	.pr_usrreqs =		&natm_usrreqs
82},
83};
84
85static struct domain natmdomain = {
86	.dom_family =		AF_NATM,
87	.dom_name =		"natm",
88	.dom_init =		natm_init,
89	.dom_protosw =		natmsw,
90	.dom_protoswNPROTOSW =	&natmsw[nitems(natmsw)],
91};
92
93static struct netisr_handler natm_nh = {
94	.nh_name = "natm",
95	.nh_handler = natmintr,
96	.nh_proto = NETISR_NATM,
97	.nh_qlimit = 1000,
98	.nh_policy = NETISR_POLICY_SOURCE,
99};
100
101#ifdef NATM_STAT
102u_int natm_sodropcnt;		/* # mbufs dropped due to full sb */
103u_int natm_sodropbytes;		/* # of bytes dropped */
104u_int natm_sookcnt;		/* # mbufs ok */
105u_int natm_sookbytes;		/* # of bytes ok */
106#endif
107
108static void
109natm_init(void)
110{
111	LIST_INIT(&natm_pcbs);
112	NATM_LOCK_INIT();
113	netisr_register(&natm_nh);
114}
115
116DOMAIN_SET(natm);
117