xref: /titanic_51/usr/src/cmd/devfsadm/dtrace_link.c (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
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 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 #include <devfsadm.h>
30 #include <strings.h>
31 #include <sys/dtrace.h>
32 
33 static int dtrace(di_minor_t minor, di_node_t node);
34 
35 static devfsadm_create_t dtrace_create_cbt[] = {
36 	{ "pseudo", "ddi_pseudo", "dtrace",
37 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, dtrace
38 	}
39 };
40 
41 DEVFSADM_CREATE_INIT_V0(dtrace_create_cbt);
42 
43 static int
44 dtrace(di_minor_t minor, di_node_t node)
45 {
46 	char *mname = di_minor_name(minor);
47 
48 	if (strcmp(DTRACEMNR_HELPER, mname) == 0) {
49 		(void) devfsadm_mklink("dtrace/" DTRACEMNR_HELPER,
50 		    node, minor, 0);
51 	}
52 
53 	return (DEVFSADM_CONTINUE);
54 }
55