meta_patch_root.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 1992-1994, 2000-2002 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* patch /etc/system file for the root device
*/
#include <dlfcn.h>
#include <meta.h>
/*
* set root device name in md.conf and vfstab, patch in mddb locations
*/
int
meta_patch_rootdev(
mdname_t *rootnp, /* root device */
char *sname, /* system file name */
char *vname, /* vfstab file name */
char *cname, /* mddb.cf file name */
char *dbname, /* md.conf file name */
int doit, /* really patch files */
int verbose, /* show what we're doing */
md_error_t *ep /* returned error */
)
{
mdsetname_t *sp;
int ismeta = metaismeta(rootnp);
char *tsname = NULL;
FILE *tsfp = NULL;
char *dbtname = NULL;
FILE *dbtfp = NULL;
char *tvname = NULL;
int rval = -1;
/* check names */
if (sname == NULL)
sname = "/etc/system";
if (vname == NULL)
vname = "/etc/vfstab";
if (cname == NULL)
cname = META_DBCONF;
if (dbname == NULL)
dbname = "/kernel/drv/md.conf";
/* make sure we have a local name */
if ((sp = metagetset(rootnp, TRUE, ep)) == NULL)
return (-1);
if (! metaislocalset(sp)) {
return (mddeverror(ep, MDE_NOT_LOCAL, rootnp->dev,
rootnp->cname));
}
/* replace forceload and rootdev lines in system */
if (meta_systemfile_copy(sname, 1, 0, doit, verbose, &tsname, &tsfp,
ep) != 0) {
goto out;
}
if (meta_systemfile_append_mdroot(rootnp, sname,
tsname, tsfp, ismeta, doit, verbose, ep) != 0) {
goto out;
}
/* replace bootlist lines in /kernel/drv/md.conf */
if (meta_systemfile_copy(dbname, 0, 1, doit, verbose, &dbtname,
&dbtfp, ep) != 0) {
goto out;
}
if (meta_systemfile_append_mddb(cname, dbname, dbtname, dbtfp, doit,
verbose, ep) != 0) {
goto out;
}
/* force the file contents out to disk */
if (doit) {
if ((fflush(tsfp) != 0) ||
(fsync(fileno(tsfp)) != 0) ||
(fclose(tsfp) != 0)) {
(void) mdsyserror(ep, errno, tsname);
goto out;
}
tsfp = NULL;
if ((fflush(dbtfp) != 0) ||
(fsync(fileno(dbtfp)) != 0) ||
(fclose(dbtfp) != 0)) {
(void) mdsyserror(ep, errno, dbtname);
goto out;
}
dbtfp = NULL;
}
/* replace lines in vfstab */
if (meta_patch_vfstab("/", rootnp, vname, NULL, doit, verbose, &tvname,
ep) != 0) {
goto out;
}
/* rename files, better hope both work */
if (doit) {
if (rename(tsname, sname) != 0) {
(void) mdsyserror(ep, errno, sname);
goto out;
}
Free(tsname);
tsname = NULL;
if (rename(dbtname, dbname) != 0) {
(void) mdsyserror(ep, errno, dbname);
goto out;
}
Free(dbtname);
dbtname = NULL;
if (rename(tvname, vname) != 0) {
(void) mdsyserror(ep, errno, vname);
goto out;
}
Free(tvname);
tvname = NULL;
}
rval = 0;
/* cleanup, return error */
out:
if (tsfp != NULL)
(void) fclose(tsfp);
if (tsname != NULL) {
if (doit)
(void) unlink(tsname);
Free(tsname);
}
if (tvname != NULL) {
if (doit)
(void) unlink(tvname);
Free(tvname);
}
/* free the temporary files for md.conf */
if (dbtfp != NULL)
(void) fclose(dbtfp);
if (dbtname != NULL) {
if (doit)
(void) unlink(dbtname);
Free(dbtname);
}
return (rval);
}