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