xref: /titanic_41/usr/src/cmd/lvm/util/metarecover.c (revision 0bc07884d74faf3093bc1ed2c66a29745a0d5604)
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 2009 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 /*
27  * Recover metadevice configurations that have been lost by scanning
28  * media, intelligent guessing, or other means.
29  */
30 
31 #include <meta.h>
32 #include <sdssc.h>
33 
34 /*
35  * print usage message
36  */
37 static void
38 usage(
39 	mdsetname_t	*sp,
40 	int		eval
41 )
42 {
43 	(void) fprintf(stderr, gettext(
44 	    "usage: %s [-s setname] [-v] raw-device -p\n"), myname);
45 	(void) fprintf(stderr, gettext(
46 	    "       %s [-s setname] [-v] [-n] raw-device -p -d\n"), myname);
47 	(void) fprintf(stderr, gettext(
48 	    "       %s [-s setname] [-v] [-n] raw-device -p -m\n"), myname);
49 
50 	md_exit(sp, eval);
51 }
52 
53 int
54 main(
55 	int	argc,
56 	char	*argv[]
57 )
58 {
59 	char		*sname = MD_LOCAL_NAME;
60 	mdcmdopts_t	options = (MDCMD_DOIT | MDCMD_PRINT);
61 
62 	mdsetname_t	*sp = NULL;
63 	md_error_t	status = mdnullerror;
64 	md_error_t	*ep = &status;
65 	mdname_t	*namep;
66 	char		*devname;
67 	int		error;
68 	int		c;
69 
70 	/*
71 	 * Get the locale set up before calling any other routines
72 	 * with messages to ouput.  Just in case we're not in a build
73 	 * environment, make sure that TEXT_DOMAIN gets set to
74 	 * something.
75 	 */
76 #if !defined(TEXT_DOMAIN)
77 #define	TEXT_DOMAIN "SYS_TEST"
78 #endif
79 	(void) setlocale(LC_ALL, "");
80 	(void) textdomain(TEXT_DOMAIN);
81 
82 	if (sdssc_bind_library() == SDSSC_ERROR) {
83 		(void) printf(gettext(
84 		    "%s: Interface error with libsds_sc.so\n"), argv[0]);
85 		exit(1);
86 	}
87 
88 	if (md_init(argc, argv, 0, 1, ep) != 0 ||
89 	    meta_check_root(ep) != 0) {
90 		mde_perror(ep, "");
91 		md_exit((mdsetname_t *)NULL, 1);
92 	}
93 
94 	/* parse arguments */
95 	optind = 1;
96 	opterr = 1;
97 	while ((c = getopt(argc, argv, "s:hnv?")) != -1) {
98 		switch (c) {
99 		case 's':
100 			sname = optarg;
101 			break;
102 
103 		case 'h':
104 			usage(sp, 0);
105 			break;
106 
107 		case 'v':
108 			options |= MDCMD_VERBOSE;
109 			break;
110 
111 		case 'n':
112 			options &= ~MDCMD_DOIT;
113 			break;
114 
115 		case '?':
116 			if (optopt == '?')
117 				usage(sp, 0);
118 			/*FALLTHROUGH*/
119 		default:
120 			usage(sp, 1);
121 			break;
122 		}
123 	}
124 	argc -= optind;
125 	argv += optind;
126 
127 	/* sname is MD_LOCAL_NAME if not specified on the command line */
128 	if ((sp = metasetname(sname, ep)) == NULL) {
129 		mde_perror(ep, "");
130 		md_exit(sp, 1);
131 	}
132 
133 	if ((argc == 0) || (argv[0] == NULL)) {
134 		usage(sp, 1);
135 	}
136 
137 	/* get raw device name */
138 	devname = Strdup(argv[0]);
139 	argv++;
140 	argc--;
141 
142 	if ((namep = metaname(&sp, devname, UNKNOWN, ep)) == NULL) {
143 		mde_perror(ep, "");
144 		md_exit(sp, 1);
145 	}
146 
147 	/* check for a valid component */
148 	if ((metagetsize(namep, ep) == MD_DISKADDR_ERROR)) {
149 		mde_perror(ep, "");
150 		md_exit(sp, 1);
151 	}
152 
153 	/* check for ownership */
154 	assert(sp != NULL);
155 	if (meta_check_ownership(sp, ep) != 0) {
156 		mde_perror(ep, "");
157 		md_exit(sp, 1);
158 	}
159 
160 	/*
161 	 * If the component is not a metadevice and we have a named set
162 	 * make sure that the component is part of the named set.
163 	 */
164 	if (strcmp(sp->setname, MD_LOCAL_NAME) != 0) {
165 		if (!metaismeta(namep)) {
166 			if (! meta_is_drive_in_thisset(sp, namep->drivenamep,
167 			    FALSE, ep)) {
168 				(void) mddeverror(ep, MDE_NOT_IN_SET,
169 				    namep->dev, namep->cname);
170 				mde_perror(ep, "");
171 				md_exit(sp, 1);
172 			}
173 		}
174 	}
175 
176 	/* parse command line -- currently only soft partitions are supported */
177 	if ((argc > 0) && (*argv != NULL) && strncmp(*argv, "-p", 2) == 0) {
178 		error = meta_recover_sp(sp, namep, --argc, ++argv, options, ep);
179 	} else {
180 		usage(sp, 1);
181 	}
182 
183 	if (error < 0) {
184 		mde_perror(ep, "");
185 		md_exit(sp, 1);
186 	} else {
187 		if (meta_update_md_cf(sp, ep) != 0) {
188 			mde_perror(ep, "");
189 			md_exit(sp, 1);
190 		}
191 	}
192 
193 	md_exit(sp, 0);
194 	/*NOTREACHED*/
195 	return (0);
196 }
197