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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (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 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* get timestamp from device
*/
#include <meta.h>
/*
* get timestamp
*/
int
getdevstamp(
mddrivename_t *dnp,
time_t *stamp, /* return timestamp here */
md_error_t *ep
)
{
int fd;
int partno;
struct extvtoc vtocbuf;
mdname_t *np;
if ((np = metaslicename(dnp, MD_SLICE0, ep)) == NULL)
return (-1);
/* open given device */
if ((fd = open(np->rname, O_RDONLY | O_NDELAY, 0)) < 0)
return (mdsyserror(ep, errno, np->cname));
/* re-read vtoc */
if (meta_getvtoc(fd, np->cname, &vtocbuf, &partno, ep) == -1) {
(void) close(fd);
return (-1);
}
/* close device */
(void) close(fd); /* sd/ssd bug */
/* return timestamp, success */
*stamp = vtocbuf.timestamp[partno];
return (0);
}
/*
* returns
* 0 on success,
* ENOTSUP if it's not a device with a vtoc
* -1 on failure
*/
int
setdevstamp(
mddrivename_t *dnp,
time_t *stamp, /* returned timestamp */
md_error_t *ep
)
{
int fd;
int partno;
struct extvtoc vtocbuf;
time_t now = time(NULL);
mdname_t *np;
if ((np = metaslicename(dnp, MD_SLICE0, ep)) == NULL)
return (-1);
/* open for vtoc */
if ((fd = open(np->rname, O_RDWR | O_NDELAY, 0)) < 0)
return (mdsyserror(ep, errno, np->cname));
if (meta_getvtoc(fd, np->cname, &vtocbuf, &partno, ep) == -1) {
(void) close(fd);
if (partno == VT_ENOTSUP)
return (ENOTSUP);
else
return (-1);
}
*stamp = vtocbuf.timestamp[partno] = now;
if (meta_setvtoc(fd, np->cname, &vtocbuf, ep) == -1) {
(void) close(fd);
return (-1);
}
/* Clear the timestamp */
vtocbuf.timestamp[partno] = 0;
if (meta_getvtoc(fd, np->cname, &vtocbuf, &partno, ep) == -1) {
(void) close(fd);
return (-1);
}
(void) close(fd); /* sd/ssd bug */
if (*stamp != vtocbuf.timestamp[partno])
return (mddeverror(ep, MDE_CANTVERIFY_VTOC, NODEV64,
np->cname));
return (0);
}
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