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 (c) 1998 by Sun Microsystems, Inc.
24 * All rights reserved.
25 */
26
27#ident	"%Z%%M%	%I%	%E% SMI"
28
29#include <sys/systm.h>
30#include <sys/errno.h>
31#include <sys/cladm.h>
32
33/*
34 * cladm(2) cluster administation system call.
35 */
36int
37cladm(int fac, int cmd, void *arg)
38{
39	int error = 0;
40	int copyout_bootflags;
41
42	switch (fac) {
43	case CL_INITIALIZE:
44		if (cmd != CL_GET_BOOTFLAG) {
45			error = EINVAL;
46			break;
47		}
48
49		/*
50		 * The CLUSTER_INSTALLING and CLUSTER_DCS_ENABLED bootflags are
51		 * internal flags. We do not want to expose these to the user
52		 * level.
53		 */
54		copyout_bootflags = (cluster_bootflags &
55		    ~(CLUSTER_INSTALLING | CLUSTER_DCS_ENABLED));
56		if (copyout(&copyout_bootflags, arg, sizeof (int))) {
57			error = EFAULT;
58		}
59		break;
60
61	case CL_CONFIG:
62		/*
63		 * We handle CL_NODEID here so that the node number
64		 * can be returned if the system is configured as part
65		 * of a cluster but not booted as part of the cluster.
66		 */
67		if (cmd == CL_NODEID) {
68			nodeid_t nid;
69
70			/* return error if not configured as a cluster */
71			if (!(cluster_bootflags & CLUSTER_CONFIGURED)) {
72				error = ENOSYS;
73				break;
74			}
75
76			nid = clconf_get_nodeid();
77			error = copyout(&nid, arg, sizeof (nid));
78			break;
79		}
80		/* FALLTHROUGH */
81
82	default:
83		if ((cluster_bootflags & (CLUSTER_CONFIGURED|CLUSTER_BOOTED)) !=
84		    (CLUSTER_CONFIGURED|CLUSTER_BOOTED)) {
85			error = EINVAL;
86			break;
87		}
88		error = cladmin(fac, cmd, arg);
89		/*
90		 * error will be -1 if the cladm module cannot be loaded;
91		 * otherwise, it is the errno value returned
92		 * (see {i86,sparc}/ml/modstubs.s).
93		 */
94		if (error < 0)
95			error = ENOSYS;
96		break;
97	}
98
99	return (error ? set_errno(error) : 0);
100}
101