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 2006 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26 #pragma ident "%Z%%M% %I% %E% SMI"
27
28 /*
29 * patch /etc/system file for the root device
30 */
31
32 #include <dlfcn.h>
33 #include <meta.h>
34
35
36 /*
37 * set root device name in md.conf and vfstab, patch in mddb locations
38 */
39 int
meta_patch_rootdev(mdname_t * rootnp,char * sname,char * vname,char * cname,char * dbname,int doit,int verbose,md_error_t * ep)40 meta_patch_rootdev(
41 mdname_t *rootnp, /* root device */
42 char *sname, /* system file name */
43 char *vname, /* vfstab file name */
44 char *cname, /* mddb.cf file name */
45 char *dbname, /* md.conf file name */
46 int doit, /* really patch files */
47 int verbose, /* show what we're doing */
48 md_error_t *ep /* returned error */
49 )
50 {
51 mdsetname_t *sp;
52 int ismeta = metaismeta(rootnp);
53 char *tsname = NULL;
54 FILE *tsfp = NULL;
55 char *dbtname = NULL;
56 FILE *dbtfp = NULL;
57 char *tvname = NULL;
58 int rval = -1;
59
60 /* check names */
61 if (sname == NULL)
62 sname = "/etc/system";
63 if (vname == NULL)
64 vname = "/etc/vfstab";
65 if (cname == NULL)
66 cname = META_DBCONF;
67 if (dbname == NULL)
68 dbname = "/kernel/drv/md.conf";
69
70 /* make sure we have a local name */
71 if ((sp = metagetset(rootnp, TRUE, ep)) == NULL)
72 return (-1);
73
74 if (! metaislocalset(sp)) {
75 return (mddeverror(ep, MDE_NOT_LOCAL, rootnp->dev,
76 rootnp->cname));
77 }
78
79 /* replace forceload and rootdev lines in system */
80 if (meta_systemfile_copy(sname, 1, 0, doit, verbose, &tsname, &tsfp,
81 ep) != 0) {
82 goto out;
83 }
84 if (meta_systemfile_append_mdroot(rootnp, sname,
85 tsname, tsfp, ismeta, doit, verbose, ep) != 0) {
86 goto out;
87 }
88
89 /* replace bootlist lines in /kernel/drv/md.conf */
90 if (meta_systemfile_copy(dbname, 0, 1, doit, verbose, &dbtname,
91 &dbtfp, ep) != 0) {
92 goto out;
93 }
94 if (meta_systemfile_append_mddb(cname, dbname, dbtname, dbtfp, doit,
95 verbose, 1, ep) != 0) {
96 goto out;
97 }
98
99 /* force the file contents out to disk */
100 if (doit) {
101 if ((fflush(tsfp) != 0) ||
102 (fsync(fileno(tsfp)) != 0) ||
103 (fclose(tsfp) != 0)) {
104 (void) mdsyserror(ep, errno, tsname);
105 goto out;
106 }
107 tsfp = NULL;
108 if ((fflush(dbtfp) != 0) ||
109 (fsync(fileno(dbtfp)) != 0) ||
110 (fclose(dbtfp) != 0)) {
111 (void) mdsyserror(ep, errno, dbtname);
112 goto out;
113 }
114 dbtfp = NULL;
115 }
116
117 /* replace lines in vfstab */
118 if (meta_patch_vfstab("/", rootnp, vname, NULL, doit, verbose, &tvname,
119 ep) != 0) {
120 goto out;
121 }
122
123 /* rename files, better hope both work */
124 if (doit) {
125 if (rename(tsname, sname) != 0) {
126 (void) mdsyserror(ep, errno, sname);
127 goto out;
128 }
129 Free(tsname);
130 tsname = NULL;
131 if (rename(dbtname, dbname) != 0) {
132 (void) mdsyserror(ep, errno, dbname);
133 goto out;
134 }
135 Free(dbtname);
136 dbtname = NULL;
137 if (rename(tvname, vname) != 0) {
138 (void) mdsyserror(ep, errno, vname);
139 goto out;
140 }
141 Free(tvname);
142 tvname = NULL;
143 }
144 rval = 0;
145
146 /* cleanup, return error */
147 out:
148 if (tsfp != NULL)
149 (void) fclose(tsfp);
150 if (tsname != NULL) {
151 if (doit)
152 (void) unlink(tsname);
153 Free(tsname);
154 }
155 if (tvname != NULL) {
156 if (doit)
157 (void) unlink(tvname);
158 Free(tvname);
159 }
160
161 /* free the temporary files for md.conf */
162 if (dbtfp != NULL)
163 (void) fclose(dbtfp);
164 if (dbtname != NULL) {
165 if (doit)
166 (void) unlink(dbtname);
167 Free(dbtname);
168 }
169 return (rval);
170 }
171