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: src/sys/netnatm/natm_proto.c,v 1.21 2008/07/04 00:21:38 rwatson Exp $");
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
55 static void natm_init(void);
56
57 static struct domain natmdomain;
58
59 static struct protosw natmsw[] = {
60 {
61 .pr_type = SOCK_STREAM,
62 .pr_domain = &natmdomain,
63 .pr_protocol = PROTO_NATMAAL5,
64 .pr_flags = PR_CONNREQUIRED,
65 .pr_usrreqs = &natm_usrreqs
66 },
67 {
68 .pr_type = SOCK_DGRAM,
69 .pr_domain = &natmdomain,
70 .pr_protocol = PROTO_NATMAAL5,
71 .pr_flags = PR_CONNREQUIRED|PR_ATOMIC,
72 .pr_usrreqs = &natm_usrreqs
73 },
74 {
75 .pr_type = SOCK_STREAM,
76 .pr_domain = &natmdomain,
77 .pr_protocol = PROTO_NATMAAL0,
78 .pr_flags = PR_CONNREQUIRED,
79 .pr_usrreqs = &natm_usrreqs
80 },
81 };
82
83 static struct domain natmdomain = {
84 .dom_family = AF_NATM,
85 .dom_name = "natm",
86 .dom_init = natm_init,
87 .dom_protosw = natmsw,
88 .dom_protoswNPROTOSW = &natmsw[sizeof(natmsw)/sizeof(natmsw[0])],
89 };
90
91 static int natmqmaxlen = 1000 /* IFQ_MAXLEN */; /* max # of packets on queue */
92 static struct ifqueue natmintrq;
93 #ifdef NATM_STAT
94 u_int natm_sodropcnt; /* # mbufs dropped due to full sb */
95 u_int natm_sodropbytes; /* # of bytes dropped */
96 u_int natm_sookcnt; /* # mbufs ok */
97 u_int natm_sookbytes; /* # of bytes ok */
98 #endif
99
100 static void
101 natm_init(void)
102 {
103 LIST_INIT(&natm_pcbs);
104 bzero(&natmintrq, sizeof(natmintrq));
105 natmintrq.ifq_maxlen = natmqmaxlen;
106 NATM_LOCK_INIT();
107 mtx_init(&natmintrq.ifq_mtx, "natm_inq", NULL, MTX_DEF);
108 netisr_register(NETISR_NATM, natmintr, &natmintrq, 0);
109 }
110
111 DOMAIN_SET(natm);
112
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