377 lines
8.9 KiB
C
377 lines
8.9 KiB
C
/*-
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* Copyright (c) 2002 Marcel Moolenaar
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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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*
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#if HAVE_NBTOOL_CONFIG_H
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#include "nbtool_config.h"
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#endif
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#include <sys/cdefs.h>
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#ifdef __FBSDID
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__FBSDID("$FreeBSD: src/sbin/gpt/migrate.c,v 1.16 2005/09/01 02:42:52 marcel Exp $");
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#endif
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#ifdef __RCSID
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__RCSID("$NetBSD: migrate.c,v 1.35 2019/03/03 02:28:14 jnemeth Exp $");
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#endif
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#include <sys/types.h>
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#include <sys/param.h>
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#define FSTYPENAMES
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#define MBRPTYPENAMES
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#ifdef HAVE_NBTOOL_CONFIG_H
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#include <nbinclude/sys/bootblock.h>
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#include <nbinclude/sys/disklabel.h>
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#else
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#include <sys/bootblock.h>
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#include <sys/disklabel.h>
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#endif
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#include <err.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "map.h"
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#include "gpt.h"
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#include "gpt_private.h"
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/*
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* Allow compilation on platforms that do not have a BSD label.
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* The values are valid for amd64, i386 and ia64 disklabels.
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* XXX: use disklabel_params from disklabel.c
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*/
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#ifndef LABELOFFSET
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#define LABELOFFSET 0
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#endif
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#ifndef LABELSECTOR
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#define LABELSECTOR 1
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#endif
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#ifndef RAW_PART
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#define RAW_PART 3
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#endif
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/* FreeBSD filesystem types that don't match corresponding NetBSD types */
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#define FREEBSD_FS_VINUM 14
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#define FREEBSD_FS_ZFS 27
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static int cmd_migrate(gpt_t, int, char *[]);
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static const char *migratehelp[] = {
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"[-Afs] [-p partitions]",
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};
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struct gpt_cmd c_migrate = {
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"migrate",
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cmd_migrate,
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migratehelp, __arraycount(migratehelp),
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GPT_SYNC,
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};
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#define usage() gpt_usage(NULL, &c_migrate)
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static const char *
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fstypename(u_int t)
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{
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static char buf[64];
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if (t >= __arraycount(fstypenames)) {
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snprintf(buf, sizeof(buf), "*%u*", t);
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return buf;
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}
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return fstypenames[t];
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}
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static const char *
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mbrptypename(u_int t)
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{
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static char buf[64];
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size_t i;
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for (i = 0; i < __arraycount(mbr_ptypes); i++)
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if ((u_int)mbr_ptypes[i].id == t)
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return mbr_ptypes[i].name;
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snprintf(buf, sizeof(buf), "*%u*", t);
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return buf;
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}
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static gpt_type_t
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freebsd_fstype_to_gpt_type(gpt_t gpt, u_int i, u_int fstype)
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{
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switch (fstype) {
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case FS_UNUSED:
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return GPT_TYPE_INVALID;
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case FS_SWAP:
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return GPT_TYPE_FREEBSD_SWAP;
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case FS_BSDFFS:
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return GPT_TYPE_FREEBSD_UFS;
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case FREEBSD_FS_VINUM:
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return GPT_TYPE_FREEBSD_VINUM;
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case FREEBSD_FS_ZFS:
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return GPT_TYPE_FREEBSD_ZFS;
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default:
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gpt_warnx(gpt, "Unknown FreeBSD partition (%d)", fstype);
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return GPT_TYPE_INVALID;
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}
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}
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static gpt_type_t
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netbsd_fstype_to_gpt_type(gpt_t gpt, u_int i, u_int fstype)
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{
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switch (fstype) {
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case FS_UNUSED:
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return GPT_TYPE_INVALID;
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case FS_HFS:
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return GPT_TYPE_APPLE_HFS;
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case FS_EX2FS:
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return GPT_TYPE_LINUX_DATA;
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case FS_SWAP:
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return GPT_TYPE_NETBSD_SWAP;
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case FS_BSDFFS:
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return GPT_TYPE_NETBSD_FFS;
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case FS_BSDLFS:
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return GPT_TYPE_NETBSD_LFS;
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case FS_RAID:
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return GPT_TYPE_NETBSD_RAIDFRAME;
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case FS_CCD:
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return GPT_TYPE_NETBSD_CCD;
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case FS_CGD:
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return GPT_TYPE_NETBSD_CGD;
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default:
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gpt_warnx(gpt, "Partition %u unknown type %s, "
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"using \"Microsoft Basic Data\"", i, fstypename(fstype));
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return GPT_TYPE_MS_BASIC_DATA;
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}
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}
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static struct gpt_ent *
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migrate_disklabel(gpt_t gpt, off_t start, struct gpt_ent *ent,
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gpt_type_t (*convert)(gpt_t, u_int, u_int))
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{
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char *buf;
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struct disklabel *dl;
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off_t ofs, rawofs;
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unsigned int i;
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gpt_type_t type;
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buf = gpt_read(gpt, start + LABELSECTOR, 1);
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if (buf == NULL) {
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gpt_warn(gpt, "Error reading label");
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return NULL;
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}
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dl = (void*)(buf + LABELOFFSET);
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if (le32toh(dl->d_magic) != DISKMAGIC ||
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le32toh(dl->d_magic2) != DISKMAGIC) {
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gpt_warnx(gpt, "MBR partition without disklabel");
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free(buf);
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return ent;
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}
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rawofs = le32toh(dl->d_partitions[RAW_PART].p_offset) *
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le32toh(dl->d_secsize);
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for (i = 0; i < le16toh(dl->d_npartitions); i++) {
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if (dl->d_partitions[i].p_fstype == FS_UNUSED)
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continue;
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ofs = le32toh(dl->d_partitions[i].p_offset) *
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le32toh(dl->d_secsize);
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if (ofs < rawofs)
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rawofs = 0;
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}
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if (gpt->verbose > 1)
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gpt_msg(gpt, "rawofs=%ju", (uintmax_t)rawofs);
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rawofs /= gpt->secsz;
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for (i = 0; i < le16toh(dl->d_npartitions); i++) {
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if (gpt->verbose > 1)
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gpt_msg(gpt, "Disklabel partition %u type %s", i,
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fstypename(dl->d_partitions[i].p_fstype));
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type = (*convert)(gpt, i, dl->d_partitions[i].p_fstype);
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if (type == GPT_TYPE_INVALID)
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continue;
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gpt_uuid_create(type, ent->ent_type,
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ent->ent_name, sizeof(ent->ent_name));
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ofs = (le32toh(dl->d_partitions[i].p_offset) *
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le32toh(dl->d_secsize)) / gpt->secsz;
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ofs = (ofs > 0) ? ofs - rawofs : 0;
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ent->ent_lba_start = htole64((uint64_t)ofs);
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ent->ent_lba_end = htole64((uint64_t)(ofs +
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(off_t)le32toh((uint64_t)dl->d_partitions[i].p_size)
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- 1LL));
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ent++;
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}
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free(buf);
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return ent;
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}
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static int
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migrate(gpt_t gpt, u_int parts, int force, int slice, int active)
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{
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off_t last = gpt_last(gpt);
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map_t map;
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struct gpt_ent *ent;
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struct mbr *mbr;
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uint32_t start, size;
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unsigned int i;
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gpt_type_t type = GPT_TYPE_INVALID;
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map = map_find(gpt, MAP_TYPE_MBR);
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if (map == NULL || map->map_start != 0) {
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gpt_warnx(gpt, "No MBR in disk to convert");
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return -1;
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}
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mbr = map->map_data;
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if (gpt_create(gpt, last, parts, 0) == -1)
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return -1;
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ent = gpt->tbl->map_data;
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/* Mirror partitions. */
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for (i = 0; i < 4; i++) {
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start = le16toh(mbr->mbr_part[i].part_start_hi);
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start = (start << 16) + le16toh(mbr->mbr_part[i].part_start_lo);
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size = le16toh(mbr->mbr_part[i].part_size_hi);
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size = (size << 16) + le16toh(mbr->mbr_part[i].part_size_lo);
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if (gpt->verbose > 1)
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gpt_msg(gpt, "MBR partition %u type %s", i,
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mbrptypename(mbr->mbr_part[i].part_typ));
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switch (mbr->mbr_part[i].part_typ) {
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case MBR_PTYPE_UNUSED:
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continue;
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case MBR_PTYPE_386BSD: /* FreeBSD */
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if (slice) {
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type = GPT_TYPE_FREEBSD;
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break;
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} else {
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ent = migrate_disklabel(gpt, start, ent,
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freebsd_fstype_to_gpt_type);
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continue;
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}
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case MBR_PTYPE_NETBSD: /* NetBSD */
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ent = migrate_disklabel(gpt, start, ent,
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netbsd_fstype_to_gpt_type);
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continue;
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case MBR_PTYPE_EFI:
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type = GPT_TYPE_EFI;
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break;
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case MBR_PTYPE_FAT12:
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case MBR_PTYPE_FAT16S:
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case MBR_PTYPE_FAT16B:
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case MBR_PTYPE_NTFS:
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case MBR_PTYPE_FAT32:
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case MBR_PTYPE_FAT32L:
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case MBR_PTYPE_FAT16L:
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case MBR_PTYPE_OS2_DOS12:
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case MBR_PTYPE_OS2_DOS16S:
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case MBR_PTYPE_OS2_DOS16B:
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case MBR_PTYPE_OS2_IFS:
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case MBR_PTYPE_HID_FAT32:
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case MBR_PTYPE_HID_FAT32_LBA:
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case MBR_PTYPE_HID_FAT16_LBA:
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type = GPT_TYPE_MS_BASIC_DATA;
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break;
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default:
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if (!force) {
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gpt_warnx(gpt, "unknown partition type (%d)",
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mbr->mbr_part[i].part_typ);
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return -1;
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}
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continue;
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}
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gpt_uuid_create(type, ent->ent_type, ent->ent_name,
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sizeof(ent->ent_name));
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ent->ent_lba_start = htole64((uint64_t)start);
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ent->ent_lba_end = htole64((uint64_t)(start + size - 1LL));
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ent++;
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}
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if (gpt_write_primary(gpt) == -1)
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return -1;
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if (gpt_write_backup(gpt) == -1)
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return -1;
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/*
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* Turn the MBR into a Protective MBR.
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*/
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memset(mbr->mbr_part, 0, sizeof(mbr->mbr_part));
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gpt_create_pmbr_part(mbr->mbr_part, last, active);
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if (gpt_write(gpt, map) == -1) {
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gpt_warn(gpt, "Cant write PMBR");
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return -1;
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}
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return 0;
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}
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static int
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cmd_migrate(gpt_t gpt, int argc, char *argv[])
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{
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int ch;
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int force = 0;
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int slice = 0;
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int active = 0;
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u_int parts = 128;
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/* Get the migrate options */
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while ((ch = getopt(argc, argv, "Afp:s")) != -1) {
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switch(ch) {
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case 'A':
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active = 1;
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break;
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case 'f':
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force = 1;
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break;
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case 'p':
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if (gpt_uint_get(gpt, &parts) == -1)
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return usage();
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break;
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case 's':
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slice = 1;
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break;
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default:
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return usage();
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}
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}
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if (argc != optind)
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return usage();
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return migrate(gpt, parts, force, slice, active);
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}
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