xref: /titanic_41/usr/src/cmd/lvm/util/metadevadm.c (revision a2bb96e7d59f447f59bc306e53b7d00e38594667)
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 2005 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 #include	<stdio.h>
30 #include	<stdarg.h>
31 #include	<ctype.h>
32 #include	<sys/fcntl.h>
33 #include	<sys/types.h>
34 #include	<devid.h>
35 #include	<ftw.h>
36 #include	<string.h>
37 #include	<mdiox.h>
38 #include	<sys/lvm/mdio.h>
39 #include 	<meta.h>
40 #include 	<syslog.h>
41 #include	<sdssc.h>
42 
43 /*
44  * print usage message
45  */
46 static void
47 usage(char *myname)
48 {
49 	(void) fprintf(stderr, gettext(
50 "usage:  %s -h\n"
51 "	%s [-s setname] -r [-lnv]\n"
52 "	%s [-s setname] -u cxtxdx [-lnv]\n"),
53 	myname, myname, myname);
54 }
55 
56 int
57 main(int argc, char **argv)
58 {
59 	char		c;
60 	char		*sname = MD_LOCAL_NAME;
61 	mddevopts_t	options = 0;
62 	md_error_t	status = mdnullerror;
63 	md_error_t	*ep = &status;
64 	mdsetname_t	*sp = NULL;
65 	mdsetname_t	*local_sp = NULL;
66 	char		*argname;
67 	int		todo = 0;
68 	int		ret = 0;
69 	int		md_upgd_stat = 0;
70 	int		error;
71 	md_set_desc	*sd;
72 
73 	/*
74 	 * Get the locale set up before calling any other routines
75 	 * with messages to ouput.  Just in case we're not in a build
76 	 * environment, make sure that TEXT_DOMAIN gets set to
77 	 * something.
78 	 */
79 #if !defined(TEXT_DOMAIN)
80 #define	TEXT_DOMAIN "SYS_TEST"
81 #endif
82 	(void) setlocale(LC_ALL, "");
83 	(void) textdomain(TEXT_DOMAIN);
84 
85 	if ((sdssc_bind_library() == SDSSC_OKAY) &&
86 		(sdssc_cmd_proxy(argc, argv, SDSSC_PROXY_PRIMARY,
87 		    &error) == SDSSC_PROXY_DONE))
88 			exit(error);
89 
90 	openlog("metadevadm", LOG_ODELAY, LOG_USER);
91 
92 	/* initialize */
93 	if (md_init(argc, argv, 0, 1, ep) != 0 ||
94 			meta_check_root(ep) != 0) {
95 		closelog();
96 		mde_perror(ep, "");
97 		md_exit(sp, 1);
98 	}
99 
100 	/* parse args */
101 	optind = 1;
102 	opterr = 1;
103 	while ((c = getopt(argc, argv, "vlhnrs:u:")) != -1) {
104 		switch (c) {
105 		case 'v':
106 			options |= DEV_VERBOSE;
107 			break;
108 		case 'n':
109 			options |= DEV_NOACTION;
110 			break;
111 		case 'r':
112 			options |= DEV_RELOAD;
113 			todo = 1;
114 			break;
115 		case 's':
116 			sname = optarg;
117 			break;
118 		case 'u':
119 			todo = 1;
120 			options |= DEV_UPDATE;
121 			argname = optarg;
122 			if (argname == NULL) {
123 				usage("metadevadm");
124 				closelog();
125 				md_exit(sp, 0);
126 			}
127 			break;
128 		case 'l':
129 			options |= DEV_LOG;
130 			break;
131 		case 'h':
132 		default:
133 			usage("metadevadm");
134 			closelog();
135 			md_exit(sp, 0);
136 		}
137 	}
138 
139 	if ((sp = metasetname(sname, ep)) == NULL) {
140 		mde_perror(ep, "");
141 		closelog();
142 		md_exit(sp, 1);
143 	}
144 
145 	if (!metaislocalset(sp)) {
146 		if ((sd = metaget_setdesc(sp, ep)) == NULL) {
147 			mde_perror(ep, "");
148 			closelog();
149 			md_exit(sp, 1);
150 		}
151 		if (MD_MNSET_DESC(sd)) {
152 			printf("%s\n", gettext("metadevadm cannot be "
153 			    "run on multi-owner disksets\n"));
154 			closelog();
155 			md_exit(sp, 0);
156 		}
157 	}
158 
159 	if ((options & DEV_VERBOSE) && (todo != 1)) {
160 		usage("metadevadm");
161 		closelog();
162 		md_exit(sp, 0);
163 	}
164 
165 	if ((options & DEV_NOACTION) && (todo != 1)) {
166 		usage("metadevadm");
167 		closelog();
168 		md_exit(sp, 0);
169 	}
170 
171 	if (todo == 0) {
172 		usage("metadevadm");
173 		closelog();
174 		md_exit(sp, 0);
175 	}
176 
177 	if ((local_sp = metasetname(MD_LOCAL_NAME, ep)) == NULL) {
178 		mde_perror(ep, "");
179 		closelog();
180 		md_exit(local_sp, 1);
181 	}
182 
183 	/* lock the local set */
184 	if (meta_lock(local_sp, TRUE, ep) != 0) {
185 		mde_perror(ep, "");
186 		closelog();
187 		md_exit(local_sp, 1);
188 	}
189 
190 	/* grab set lock */
191 	if (meta_lock(sp, TRUE, ep)) {
192 		mde_perror(ep, "");
193 		closelog();
194 		md_exit(local_sp, 1);
195 	}
196 
197 	/* check for ownership */
198 	if (meta_check_ownership(sp, ep) != 0) {
199 		/*
200 		 * If the set is not owned by this node then only update the
201 		 * local set's replica.
202 		 */
203 		options |= DEV_LOCAL_SET;
204 	}
205 
206 	/*
207 	 * check for upgrade. If upgrade in progress then just exit.
208 	 */
209 	if (metaioctl(MD_UPGRADE_STAT, &md_upgd_stat, ep, NULL) != 0) {
210 			mde_perror(ep, "");
211 			closelog();
212 			(void) meta_unlock(sp, ep);
213 			md_exit(local_sp, 1);
214 	}
215 	if (md_upgd_stat == 0) {
216 		ret = meta_fixdevid(sp, options, argname, ep);
217 		if (ret == METADEVADM_ERR) {
218 			/*
219 			 * If the call failed, for a DEV_RELOAD still need to
220 			 * update the .conf file to provide the latest devid
221 			 * information so exit later.
222 			 */
223 			if (options & DEV_UPDATE) {
224 				closelog();
225 				(void) meta_unlock(sp, ep);
226 				md_exit(local_sp, 1);
227 			}
228 		}
229 	}
230 
231 	/*
232 	 * Sync replica list in kernel to replica list in conf files.
233 	 * This will update driver name and minor number in conf file
234 	 * if reload was run.  Will update device id in conf file if
235 	 * update was run.
236 	 */
237 	meta_sync_db_locations(sp, ep);
238 	closelog();
239 	(void) meta_unlock(sp, ep);
240 	md_exit(local_sp, ret);
241 	return (0);
242 }
243