147 lines
4.3 KiB
C
147 lines
4.3 KiB
C
/* $NetBSD: check.c,v 1.2 2000/10/23 06:56:00 jdc Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1999 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Julian Coleman, Waldi Ravens and Leo Weppelman.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the NetBSD
|
|
* Foundation, Inc. and its contributors.
|
|
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "privahdi.h"
|
|
|
|
/* Partitions which have errors */
|
|
int ahdi_errp1;
|
|
int ahdi_errp2;
|
|
|
|
/*
|
|
* Check partitions for consistency :
|
|
* GEM vs BGM
|
|
* Start sector > 2
|
|
* End sector < secperunit
|
|
* other partition overlap
|
|
* auxiliary root overlap
|
|
* Number of partitions in root/auxiliary root
|
|
*/
|
|
int
|
|
ahdi_checklabel (ptable)
|
|
struct ahdi_ptable *ptable;
|
|
{
|
|
int i, j, rcount, acount;
|
|
u_int32_t i_end, j_end;
|
|
|
|
ahdi_errp1 = -1;
|
|
ahdi_errp2 = -1;
|
|
|
|
if (ptable->nparts < 1 || ptable->nparts > MAXPARTITIONS)
|
|
return (-2);
|
|
|
|
rcount = 0;
|
|
acount = 0;
|
|
|
|
for (i = 0; i < ptable->nparts; i++) {
|
|
|
|
/* GEM vs BGM */
|
|
if (ptable->parts[i].size > 32768) {
|
|
if (AHDI_MKPID (ptable->parts[i].id[0],
|
|
ptable->parts[i].id[1], ptable->parts[i].id[2])
|
|
== AHDI_PID_GEM) {
|
|
ahdi_errp1 = i;
|
|
return (-3);
|
|
}
|
|
} else {
|
|
if (AHDI_MKPID (ptable->parts[i].id[0],
|
|
ptable->parts[i].id[1], ptable->parts[i].id[2])
|
|
== AHDI_PID_BGM) {
|
|
ahdi_errp1 = i;
|
|
return (-3);
|
|
}
|
|
}
|
|
|
|
/* Need 2 free sectors at start for root and bad sector list */
|
|
if (ptable->parts[i].start < 2) {
|
|
ahdi_errp1 = i;
|
|
return (-4);
|
|
}
|
|
|
|
i_end = ptable->parts[i].start + ptable->parts[i].size - 1;
|
|
|
|
/* Check partition does not extend past end of disk */
|
|
if (i_end >= ptable->secperunit) {
|
|
ahdi_errp1 = i;
|
|
return (-5);
|
|
}
|
|
|
|
for (j = i + 1; j < ptable->nparts; j++) {
|
|
/* Check for overlap with other partitions */
|
|
j_end = ptable->parts[j].start + ptable->parts[j].size
|
|
- 1;
|
|
if ((ptable->parts[j].start >= ptable->parts[i].start
|
|
&& ptable->parts[j].start <= i_end) ||
|
|
(j_end >= ptable->parts[i].start &&
|
|
j_end <= i_end)) {
|
|
ahdi_errp1 = i;
|
|
ahdi_errp2 = j;
|
|
return (-6);
|
|
}
|
|
/* Check number of partitions in auxiliary root */
|
|
if (ptable->parts[i].root &&
|
|
ptable->parts[i].root == ptable->parts[j].root) {
|
|
ahdi_errp1 = i;
|
|
ahdi_errp2 = j;
|
|
return (-9);
|
|
}
|
|
}
|
|
|
|
for (j = i; j < ptable->nparts; j++)
|
|
/* Check for overlap with auxiliary root(s) */
|
|
if (ptable->parts[j].root >= ptable->parts[i].start &&
|
|
ptable->parts[j].root <= i_end) {
|
|
ahdi_errp1 = i;
|
|
return (-7);
|
|
}
|
|
|
|
/* Count partitions in root/auxiliary roots */
|
|
if (ptable->parts[i].root)
|
|
acount ++;
|
|
else
|
|
rcount ++;
|
|
|
|
}
|
|
/* Check number of partitions in root sector */
|
|
if (acount)
|
|
rcount++;
|
|
if (rcount > 4)
|
|
return (-8);
|
|
else
|
|
return (1);
|
|
}
|