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 */
36 int
cladm(int fac,int cmd,void * arg)37 cladm(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(©out_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