xref: /illumos-gate/usr/src/uts/common/inet/udp/udpddi.c (revision 3db86aab)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 /* Copyright (c) 1990 Mentat Inc. */
27 
28 #pragma ident	"%Z%%M%	%I%	%E% SMI"
29 
30 #include <sys/types.h>
31 #include <sys/conf.h>
32 #include <sys/modctl.h>
33 #include <inet/common.h>
34 #include <inet/ip.h>
35 #include <inet/udp_impl.h>
36 
37 #define	INET_NAME	"udp"
38 #define	INET_MODDESC	"UDP STREAMS module %I%"
39 #define	INET_DEVDESC	"UDP STREAMS driver %I%"
40 #define	INET_DEVMINOR	IPV4_MINOR
41 #define	INET_STRTAB	udpinfo
42 #define	INET_DEVMTFLAGS	IP_DEVMTFLAGS
43 /*
44  * We define both synchronous STREAMS and sockfs direct-access
45  * mode for UDP module instance, because it is autopushed on
46  * top of /dev/ip for the sockets case.
47  */
48 #define	INET_MODMTFLAGS (D_MP|D_SYNCSTR|_D_DIRECT)
49 
50 #include "../inetddi.c"
51 
52 int
53 _init(void)
54 {
55 	int	error;
56 
57 	INET_BECOME_IP();
58 
59 	/*
60 	 * Note: After mod_install succeeds, another thread can enter
61 	 * therefore all initialization is done before it and any
62 	 * de-initialization needed done if it fails.
63 	 */
64 	udp_ddi_init();
65 	error = mod_install(&modlinkage);
66 	if (error != 0)
67 		udp_ddi_destroy();
68 
69 	return (error);
70 }
71 
72 int
73 _fini(void)
74 {
75 	int	error;
76 
77 	error = mod_remove(&modlinkage);
78 	if (error != 0)
79 		return (error);
80 
81 	udp_ddi_destroy();
82 	return (0);
83 }
84 
85 int
86 _info(struct modinfo *modinfop)
87 {
88 	return (mod_info(&modlinkage, modinfop));
89 }
90