xref: /illumos-gate/usr/src/uts/sparc/zfs/spa_boot.c (revision b24ab6762772a3f6a89393947930c7fa61306783)
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 (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #include <sys/zio.h>
28 #include <sys/spa.h>
29 #include <sys/bootconf.h>
30 
31 char *
32 spa_get_bootprop(char *propname)
33 {
34 	int proplen;
35 	char *value;
36 
37 	proplen = BOP_GETPROPLEN(bootops, propname);
38 	if (proplen <= 0)
39 		return (NULL);
40 
41 	value = kmem_zalloc(proplen, KM_SLEEP);
42 	if (BOP_GETPROP(bootops, propname, value) == -1) {
43 		kmem_free(value, proplen);
44 		return (NULL);
45 	}
46 
47 	return (value);
48 }
49 
50 void
51 spa_free_bootprop(char *propname)
52 {
53 	kmem_free(propname, strlen(propname) + 1);
54 }
55