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Check disklabel just read from disk and warn if:

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(a) total sector size is different from the size of ccd, or
	(b) size of a partition exceeds the size of ccd.
This commit is contained in:
enami 1998-02-22 06:50:08 +00:00
parent 6e8ffbdd58
commit 512a01869c
1 changed files with 27 additions and 1 deletions
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28
sys/dev/ccd.c
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@ -1,4 +1,4 @@
/* $NetBSD: ccd.c,v 1.46 1998/02/06 08:13:07 thorpej Exp $ */
/* $NetBSD: ccd.c,v 1.47 1998/02/22 06:50:08 enami Exp $ */
/*-
* Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc.
@ -1466,6 +1466,32 @@ ccdgetdisklabel(dev)
cs->sc_dkdev.dk_label, cs->sc_dkdev.dk_cpulabel);
if (errstring)
ccdmakedisklabel(cs);
else {
int i;
struct partition *pp;
/*
* Sanity check whether the found disklabel is valid.
*
* This is necessary since total size of ccd may vary
* when an interleave is changed even though exactly
* same componets are used, and old disklabel may used
* if that is found.
*/
if (lp->d_secperunit != cs->sc_size)
printf("WARNING: %s: "
"total sector size in disklabel (%d) != "
"the size of ccd (%d)\n", cs->sc_xname,
lp->d_secperunit, cs->sc_size);
for (i = 0; i < lp->d_npartitions; i++) {
pp = &lp->d_partitions[i];
if (pp->p_offset + pp->p_size > cs->sc_size)
printf("WARNING: %s: size of partition `%c' "
"(%d) exceeds the size of ccd (%d)\n",
cs->sc_xname, 'a' + i, pp->p_size,
cs->sc_size);
}
}
#ifdef DEBUG
/* It's actually extremely common to have unlabeled ccds. */