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 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26 /*
27 * RDC user level ioctl interface
28 */
29
30 #include <stdio.h>
31 #include <unistd.h>
32 #include <sys/types.h>
33 #include <fcntl.h>
34
35 #include <sys/nsctl/sd_cache.h>
36 #include <sys/nsctl/sd_conf.h>
37 #include <sys/nsctl/rdc_ioctl.h>
38 #include <sys/unistat/spcs_s.h>
39 #include <sys/unistat/spcs_s_u.h>
40
41 const char *__rdc_dev = "/dev/rdc";
42 static int __rdc_fd;
43
44
45 static int
__rdc_open(void)46 __rdc_open(void)
47 {
48 int fd = open(__rdc_dev, O_RDONLY);
49
50 if (fd < 0)
51 return (-1);
52
53 return (__rdc_fd = fd);
54 }
55
56
57 int
rdc_ioctl(long cmd,long a0,long a1,long a2,long a3,long a4,spcs_s_info_t ustatus)58 rdc_ioctl(long cmd, long a0, long a1, long a2, long a3, long a4,
59 spcs_s_info_t ustatus)
60 {
61 _rdc_ioctl_t args;
62
63 if (!__rdc_fd && __rdc_open() < 0)
64 return (-1);
65
66 args.arg0 = a0;
67 args.arg1 = a1;
68 args.arg2 = a2;
69 args.arg3 = a3;
70 args.arg4 = a4;
71 args.magic = RDC_MAGIC; /* for versioning */
72 args.ustatus = ustatus;
73
74 return (ioctl(__rdc_fd, cmd, &args));
75 }
76
77 /*
78 * Simple form of the ioctl, just pass the command and buffer address
79 * to the kernel.
80 */
81 int
rdc_ioctl_simple(long cmd,void * addr)82 rdc_ioctl_simple(long cmd, void *addr)
83 {
84 if (!__rdc_fd && __rdc_open() < 0)
85 return (-1);
86 return (ioctl(__rdc_fd, cmd, addr));
87 }
88