xref: /illumos-gate/usr/src/uts/common/inet/ip/icmpddi.c (revision 88f8b78a88cbdc6d8c1af5c3e54bc49d25095c98)
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 2004 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 
36 #define	INET_NAME	"icmp"
37 #define	INET_MODDESC	"ICMP STREAMS module %I%"
38 #define	INET_DEVDESC	"ICMP STREAMS driver %I%"
39 #define	INET_DEVMINOR	IPV4_MINOR
40 #define	INET_STRTAB	icmpinfo
41 #define	INET_DEVMTFLAGS	IP_DEVMTFLAGS	/* since as a driver we're ip */
42 #define	INET_MODMTFLAGS (D_MP|D_MTPERQ|D_MTOUTPERIM|D_MTOCEXCL)
43 
44 #include "../inetddi.c"
45 
46 extern void icmp_ddi_init(void);
47 extern void icmp_ddi_destroy(void);
48 
49 int
50 _init(void)
51 {
52 	int error;
53 
54 	INET_BECOME_IP();
55 
56 	/*
57 	 * Note: After mod_install succeeds, another thread can enter
58 	 * therefore all initialization is done before it and any
59 	 * de-initialization needed done if it fails.
60 	 */
61 	icmp_ddi_init();
62 	error = mod_install(&modlinkage);
63 	if (error != 0)
64 		icmp_ddi_destroy();
65 
66 	return (error);
67 }
68 
69 int
70 _fini(void)
71 {
72 	int	error;
73 
74 	error = mod_remove(&modlinkage);
75 	if (error != 0)
76 		return (error);
77 
78 	icmp_ddi_destroy();
79 	return (0);
80 }
81 
82 int
83 _info(struct modinfo *modinfop)
84 {
85 	return (mod_info(&modlinkage, modinfop));
86 }
87