- abandon to maintain disksubr.c in favour of kern/subr_disk_mbr.c.
This commit is contained in:
nisimura
parent
6d7713a9a1
commit
1e77327a1b
@ -1,6 +1,6 @@
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# $NetBSD: files.sandpoint,v 1.24 2008/02/20 21:43:35 drochner Exp $
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# $NetBSD: files.sandpoint,v 1.25 2008/04/09 01:56:19 nisimura Exp $
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#
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# Motorola's "SandPoint" evaluation board's specific configuration info
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# Motorola's "SandPoint" evaluation board and multiplied descendents.
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#
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maxpartitions 16
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@ -10,14 +10,11 @@ include "arch/powerpc/pic/files.pic"
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file arch/sandpoint/sandpoint/machdep.c
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file arch/sandpoint/sandpoint/autoconf.c
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file arch/sandpoint/sandpoint/disksubr.c disk
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file arch/powerpc/powerpc/bus_dma.c
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file arch/powerpc/powerpc/bus_space.c
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file arch/powerpc/powerpc/procfs_machdep.c procfs
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file arch/powerpc/powerpc/clock.c
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file arch/powerpc/powerpc/procfs_machdep.c procfs
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# General files
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file kern/subr_disk_mbr.c disk
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file dev/cons.c
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#
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@ -1,4 +1,4 @@
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/* $NetBSD: autoconf.c,v 1.17 2008/04/05 04:05:06 nisimura Exp $ */
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/* $NetBSD: autoconf.c,v 1.18 2008/04/09 01:56:19 nisimura Exp $ */
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/*-
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* Copyright (c) 1990 The Regents of the University of California.
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@ -35,7 +35,7 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.17 2008/04/05 04:05:06 nisimura Exp $");
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__KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.18 2008/04/09 01:56:19 nisimura Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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@ -66,17 +66,6 @@ cpu_configure()
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panic("configure: mainbus not configured");
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genppc_cpu_configure();
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#if 1
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{
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uint8_t spd[64];
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extern int iic_seep_bootstrap_read(int, int, uint8_t *, size_t);
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printf("reading 0x50 SDRAM SPD\n");
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iic_seep_bootstrap_read(0x50, 0, spd, sizeof(spd));
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printf("SPD: %02x %02x %02x - %02x %02x %02x %02x %02x\n",
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spd[0], spd[1], spd[2], spd[3], spd[4], spd[5], spd[6], spd[7]);
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}
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#endif
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}
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char *booted_kernel; /* should be a genuine filename */
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@ -1,467 +0,0 @@
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/* $NetBSD: disksubr.c,v 1.17 2008/01/02 11:48:28 ad Exp $ */
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/*
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* Copyright (c) 1982, 1986, 1988 Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)ufs_disksubr.c 7.16 (Berkeley) 5/4/91
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: disksubr.c,v 1.17 2008/01/02 11:48:28 ad Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/buf.h>
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#include <sys/disklabel.h>
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#include <sys/disk.h>
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#include <sys/syslog.h>
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#include "opt_mbr.h"
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int fat_types[] = { MBR_PTYPE_FAT12, MBR_PTYPE_FAT16S,
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MBR_PTYPE_FAT16B, MBR_PTYPE_FAT32,
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MBR_PTYPE_FAT32L, MBR_PTYPE_FAT16L,
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-1 };
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#define NO_MBR_SIGNATURE ((struct mbr_partition *) -1)
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static struct mbr_partition *
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mbr_findslice __P((struct mbr_partition* dp, struct buf *bp));
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/*
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* Scan MBR for NetBSD partittion. Return NO_MBR_SIGNATURE if no MBR found
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* Otherwise, copy valid MBR partition-table into dp, and if a NetBSD
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* partition is found, return a pointer to it; else return NULL.
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*/
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static
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struct mbr_partition *
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mbr_findslice(dp, bp)
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struct mbr_partition *dp;
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struct buf *bp;
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{
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struct mbr_partition *ourdp = NULL;
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u_int16_t *mbrmagicp;
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int i;
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/* Note: Magic number is little-endian. */
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mbrmagicp = (u_int16_t *)((char *)bp->b_data + MBR_MAGIC_OFFSET);
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if (*mbrmagicp != MBR_MAGIC)
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return (NO_MBR_SIGNATURE);
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/* XXX how do we check veracity/bounds of this? */
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memcpy(dp, (char *)bp->b_data + MBR_PART_OFFSET,
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MBR_PART_COUNT * sizeof(*dp));
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/* look for NetBSD partition */
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for (i = 0; i < MBR_PART_COUNT; i++) {
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if (dp[i].mbrp_type == MBR_PTYPE_NETBSD) {
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ourdp = &dp[i];
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break;
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}
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}
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#ifdef COMPAT_386BSD_MBRPART
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/* didn't find it -- look for 386BSD partition */
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if (!ourdp) {
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for (i = 0; i < MBR_PART_COUNT; i++) {
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if (dp[i].mbrp_type == MBR_PTYPE_386BSD) {
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printf("WARNING: old BSD partition ID!\n");
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ourdp = &dp[i];
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/*
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* If more than one matches, take last,
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* as NetBSD install tool does.
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*/
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#if 0
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break;
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#endif
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}
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}
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}
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#endif /* COMPAT_386BSD_MBRPART */
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return (ourdp);
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}
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/*
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* Attempt to read a disk label from a device
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* using the indicated strategy routine.
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* The label must be partly set up before this:
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* secpercyl, secsize and anything required for a block i/o read
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* operation in the driver's strategy/start routines
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* must be filled in before calling us.
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*
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* If dos partition table requested, attempt to load it and
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* find disklabel inside a DOS partition. Also, if bad block
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* table needed, attempt to extract it as well. Return buffer
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* for use in signalling errors if requested.
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*
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* Returns null on success and an error string on failure.
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*/
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const char *
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readdisklabel(dev, strat, lp, osdep)
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dev_t dev;
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void (*strat) __P((struct buf *));
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struct disklabel *lp;
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struct cpu_disklabel *osdep;
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{
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struct mbr_partition *dp;
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struct partition *pp;
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struct dkbad *bdp;
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struct buf *bp;
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struct disklabel *dlp;
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const char *msg = NULL;
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int dospartoff, cyl, i, *ip;
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/* minimal requirements for archtypal disk label */
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if (lp->d_secsize == 0)
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lp->d_secsize = DEV_BSIZE;
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if (lp->d_secperunit == 0)
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lp->d_secperunit = 0x1fffffff;
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#if 0
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if (lp->d_ncylinders == 16383) {
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printf("disklabel: Disk > 8G ... readjusting chs %d/%d/%d to ",
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lp->d_ncylinders, lp->d_ntracks, lp->d_nsectors);
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lp->d_ncylinders = lp->d_secperunit / lp->d_ntracks / lp->d_nsectors;
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printf("%d/%d/%d\n",
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lp->d_ncylinders, lp->d_ntracks, lp->d_nsectors);
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}
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#endif
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lp->d_npartitions = RAW_PART + 1;
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for (i = 0; i < RAW_PART; i++) {
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lp->d_partitions[i].p_size = 0;
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lp->d_partitions[i].p_offset = 0;
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}
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if (lp->d_partitions[i].p_size == 0)
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lp->d_partitions[i].p_size = 0x1fffffff;
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lp->d_partitions[i].p_offset = 0;
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/* get a buffer and initialize it */
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bp = geteblk((int)lp->d_secsize);
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bp->b_dev = dev;
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/* do dos partitions in the process of getting disklabel? */
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dospartoff = 0;
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cyl = LABELSECTOR / lp->d_secpercyl;
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if (!osdep)
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goto nombrpart;
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dp = osdep->dosparts;
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/* read master boot record */
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bp->b_blkno = MBR_BBSECTOR;
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bp->b_bcount = lp->d_secsize;
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bp->b_cflags = BC_BUSY;
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bp->b_flags = B_READ;
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bp->b_cylinder = MBR_BBSECTOR / lp->d_secpercyl;
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(*strat)(bp);
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/* if successful, wander through dos partition table */
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if (biowait(bp)) {
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msg = "dos partition I/O error";
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goto done;
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} else {
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struct mbr_partition *ourdp = NULL;
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ourdp = mbr_findslice(dp, bp);
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if (ourdp == NO_MBR_SIGNATURE)
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goto nombrpart;
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for (i = 0; i < MBR_PART_COUNT; i++, dp++) {
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/* Install in partition e, f, g, or h. */
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pp = &lp->d_partitions[RAW_PART + 1 + i];
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pp->p_offset = dp->mbrp_start;
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pp->p_size = dp->mbrp_size;
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for (ip = fat_types; *ip != -1; ip++) {
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if (dp->mbrp_type == *ip)
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pp->p_fstype = FS_MSDOS;
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}
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if (dp->mbrp_type == MBR_PTYPE_LNXEXT2)
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pp->p_fstype = FS_EX2FS;
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if (dp->mbrp_type == MBR_PTYPE_NTFS)
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pp->p_fstype = FS_NTFS;
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/* is this ours? */
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if (dp == ourdp) {
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/* need sector address for SCSI/IDE,
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cylinder for ESDI/ST506/RLL */
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dospartoff = dp->mbrp_start;
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cyl = MBR_PCYL(dp->mbrp_scyl, dp->mbrp_ssect);
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/* update disklabel with details */
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lp->d_partitions[2].p_size =
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dp->mbrp_size;
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lp->d_partitions[2].p_offset =
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dp->mbrp_start;
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#if 0
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if (lp->d_ntracks != dp->mbrp_ehd + 1 ||
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lp->d_nsectors != DPSECT(dp->mbrp_esect)) {
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printf("disklabel: BIOS sees chs %d/%d/%d as ",
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lp->d_ncylinders, lp->d_ntracks,
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lp->d_nsectors);
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lp->d_ntracks = dp->mbrp_ehd + 1;
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lp->d_nsectors = DPSECT(dp->mbrp_esect);
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lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors;
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lp->d_ncylinders = lp->d_secperunit / lp->d_secpercyl;
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if (! lp->d_ncylinders)
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lp->d_ncylinders = 1;
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printf("%d/%d/%d\n",
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lp->d_ncylinders, lp->d_ntracks,
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lp->d_nsectors);
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}
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#endif
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}
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}
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lp->d_npartitions = RAW_PART + 1 + i;
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}
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nombrpart:
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/* next, dig out disk label */
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bp->b_blkno = dospartoff + LABELSECTOR;
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bp->b_cylinder = cyl;
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bp->b_bcount = lp->d_secsize;
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bp->b_cflags = BC_BUSY;
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bp->b_flags = B_READ;
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(*strat)(bp);
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/* if successful, locate disk label within block and validate */
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if (biowait(bp)) {
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msg = "disk label I/O error";
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goto done;
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}
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for (dlp = (struct disklabel *)bp->b_data;
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dlp <= (struct disklabel *)((char *)bp->b_data +
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lp->d_secsize - sizeof(*dlp));
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dlp = (struct disklabel *)((char *)dlp + sizeof(long))) {
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if (dlp->d_magic != DISKMAGIC || dlp->d_magic2 != DISKMAGIC) {
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if (msg == NULL)
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msg = "no disk label";
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} else if (dlp->d_npartitions > MAXPARTITIONS ||
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dkcksum(dlp) != 0)
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msg = "disk label corrupted";
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else {
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*lp = *dlp;
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msg = NULL;
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break;
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}
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}
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if (msg)
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goto done;
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/* obtain bad sector table if requested and present */
|
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if (osdep && (lp->d_flags & D_BADSECT)) {
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struct dkbad *db;
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bdp = &osdep->bad;
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i = 0;
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do {
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/* read a bad sector table */
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bp->b_cflags = BC_BUSY;
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bp->b_flags = B_READ;
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bp->b_blkno = lp->d_secperunit - lp->d_nsectors + i;
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if (lp->d_secsize > DEV_BSIZE)
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bp->b_blkno *= lp->d_secsize / DEV_BSIZE;
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else
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bp->b_blkno /= DEV_BSIZE / lp->d_secsize;
|
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bp->b_bcount = lp->d_secsize;
|
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bp->b_cylinder = lp->d_ncylinders - 1;
|
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(*strat)(bp);
|
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|
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/* if successful, validate, otherwise try another */
|
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if (biowait(bp)) {
|
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msg = "bad sector table I/O error";
|
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} else {
|
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db = (struct dkbad *)(bp->b_data);
|
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#define DKBAD_MAGIC 0x4321
|
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if (db->bt_mbz == 0
|
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&& db->bt_flag == DKBAD_MAGIC) {
|
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msg = NULL;
|
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*bdp = *db;
|
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break;
|
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} else
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msg = "bad sector table corrupted";
|
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}
|
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} while (bp->b_error != 0 && (i += 2) < 10 &&
|
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i < lp->d_nsectors);
|
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}
|
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|
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done:
|
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brelse(bp, BC_INVAL);
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return (msg);
|
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}
|
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|
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/*
|
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* Check new disk label for sensibility
|
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* before setting it.
|
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*/
|
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int
|
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setdisklabel(olp, nlp, openmask, osdep)
|
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struct disklabel *olp, *nlp;
|
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u_long openmask;
|
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struct cpu_disklabel *osdep;
|
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{
|
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int i;
|
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struct partition *opp, *npp;
|
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|
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/* sanity clause */
|
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if (nlp->d_secpercyl == 0 || nlp->d_secsize == 0
|
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|| (nlp->d_secsize % DEV_BSIZE) != 0)
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return(EINVAL);
|
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|
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/* special case to allow disklabel to be invalidated */
|
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if (nlp->d_magic == 0xffffffff) {
|
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*olp = *nlp;
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return (0);
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}
|
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|
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if (nlp->d_magic != DISKMAGIC || nlp->d_magic2 != DISKMAGIC ||
|
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dkcksum(nlp) != 0)
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return (EINVAL);
|
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|
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/* XXX missing check if other dos partitions will be overwritten */
|
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|
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while (openmask != 0) {
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i = ffs(openmask) - 1;
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openmask &= ~(1 << i);
|
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if (nlp->d_npartitions <= i)
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return (EBUSY);
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opp = &olp->d_partitions[i];
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npp = &nlp->d_partitions[i];
|
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if (npp->p_offset != opp->p_offset || npp->p_size < opp->p_size)
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return (EBUSY);
|
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/*
|
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* Copy internally-set partition information
|
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* if new label doesn't include it. XXX
|
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*/
|
||||
if (npp->p_fstype == FS_UNUSED && opp->p_fstype != FS_UNUSED) {
|
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npp->p_fstype = opp->p_fstype;
|
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npp->p_fsize = opp->p_fsize;
|
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npp->p_frag = opp->p_frag;
|
||||
npp->p_cpg = opp->p_cpg;
|
||||
}
|
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}
|
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nlp->d_checksum = 0;
|
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nlp->d_checksum = dkcksum(nlp);
|
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*olp = *nlp;
|
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return (0);
|
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}
|
||||
|
||||
|
||||
/*
|
||||
* Write disk label back to device after modification.
|
||||
*/
|
||||
int
|
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writedisklabel(dev, strat, lp, osdep)
|
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dev_t dev;
|
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void (*strat) __P((struct buf *));
|
||||
struct disklabel *lp;
|
||||
struct cpu_disklabel *osdep;
|
||||
{
|
||||
struct mbr_partition *dp;
|
||||
struct buf *bp;
|
||||
struct disklabel *dlp;
|
||||
int error, dospartoff, cyl;
|
||||
|
||||
/* get a buffer and initialize it */
|
||||
bp = geteblk((int)lp->d_secsize);
|
||||
bp->b_dev = dev;
|
||||
|
||||
/* do dos partitions in the process of getting disklabel? */
|
||||
dospartoff = 0;
|
||||
cyl = LABELSECTOR / lp->d_secpercyl;
|
||||
if (!osdep)
|
||||
goto nombrpart;
|
||||
dp = osdep->dosparts;
|
||||
|
||||
/* read master boot record */
|
||||
bp->b_blkno = MBR_BBSECTOR;
|
||||
bp->b_bcount = lp->d_secsize;
|
||||
bp->b_cflags = BC_BUSY;
|
||||
bp->b_flags = B_READ;
|
||||
bp->b_cylinder = MBR_BBSECTOR / lp->d_secpercyl;
|
||||
(*strat)(bp);
|
||||
|
||||
if ((error = biowait(bp)) == 0) {
|
||||
struct mbr_partition *ourdp = NULL;
|
||||
|
||||
ourdp = mbr_findslice(dp, bp);
|
||||
if (ourdp == NO_MBR_SIGNATURE)
|
||||
goto nombrpart;
|
||||
|
||||
if (ourdp) {
|
||||
/* need sector address for SCSI/IDE,
|
||||
cylinder for ESDI/ST506/RLL */
|
||||
dospartoff = ourdp->mbrp_start;
|
||||
cyl = MBR_PCYL(ourdp->mbrp_scyl, ourdp->mbrp_ssect);
|
||||
}
|
||||
}
|
||||
|
||||
nombrpart:
|
||||
#ifdef maybe
|
||||
/* disklabel in appropriate location? */
|
||||
if (lp->d_partitions[2].p_offset != 0
|
||||
&& lp->d_partitions[2].p_offset != dospartoff) {
|
||||
error = EXDEV;
|
||||
goto done;
|
||||
}
|
||||
#endif
|
||||
|
||||
/* next, dig out disk label */
|
||||
bp->b_blkno = dospartoff + LABELSECTOR;
|
||||
bp->b_cylinder = cyl;
|
||||
bp->b_bcount = lp->d_secsize;
|
||||
bp->b_cflags = BC_BUSY;
|
||||
bp->b_flags = B_READ;
|
||||
(*strat)(bp);
|
||||
|
||||
/* if successful, locate disk label within block and validate */
|
||||
if ((error = biowait(bp)) != 0)
|
||||
goto done;
|
||||
for (dlp = (struct disklabel *)bp->b_data;
|
||||
dlp <= (struct disklabel *)((char *)bp->b_data +
|
||||
lp->d_secsize - sizeof(*dlp));
|
||||
dlp = (struct disklabel *)((char *)dlp + sizeof(long))) {
|
||||
if (dlp->d_magic == DISKMAGIC && dlp->d_magic2 == DISKMAGIC &&
|
||||
dkcksum(dlp) == 0) {
|
||||
*dlp = *lp;
|
||||
bp->b_cflags = BC_BUSY;
|
||||
bp->b_flags = B_WRITE;
|
||||
(*strat)(bp);
|
||||
error = biowait(bp);
|
||||
goto done;
|
||||
}
|
||||
}
|
||||
error = ESRCH;
|
||||
|
||||
done:
|
||||
brelse(bp, BC_INVAL);
|
||||
return (error);
|
||||
}
|
||||
Loading…
x
Reference in New Issue
Block a user