grub/grub-core/commands/gptsync.c

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/* gptsync.c - fill the mbr based on gpt entries */
/* XXX: I don't know what to do if sector size isn't 512 bytes */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2009 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grub/command.h>
#include <grub/dl.h>
#include <grub/device.h>
#include <grub/disk.h>
2009-08-23 Robert Millan <rmh.grub@aybabtu.com> * partmap/pc.c: Rename to ... * partmap/msdos.c: ... this. Update all users. (grub_pc_partition_map): Rename to ... (grub_msdos_partition_map): ... this. Update all users. * parttool/pcpart.c: Rename to ... * parttool/msdospart.c: ... this. Update all users. * include/grub/pc_partition.h: Rename to ... * include/grub/msdos_partition.h: ... this. Update all users. (grub_pc_partition_bsd_entry): Rename to ... (grub_msdos_partition_bsd_entry): ... this. Update all users. (grub_pc_partition_disk_label): Rename to ... (grub_msdos_partition_disk_label): ... this. Update all users. (grub_pc_partition_entry): Rename to ... (grub_msdos_partition_entry): ... this. Update all users. (grub_pc_partition_mbr): Rename to ... (grub_msdos_partition_mbr): ... this. Update all users. (grub_pc_partition): Rename to ... (grub_msdos_partition): ... this. Update all users. (grub_pc_partition_is_empty): Rename to ... (grub_msdos_partition_is_empty): ... this. Update all users. (grub_pc_partition_is_extended): Rename to ... (grub_msdos_partition_is_extended): ... this. Update all users. (grub_pc_partition_is_bsd): Rename to ... (grub_msdos_partition_is_bsd): ... this. Update all users. * conf/common.rmk (amiga_mod_SOURCES, amiga_mod_CFLAGS) (amiga_mod_LDFLAGS, apple_mod_SOURCES, apple_mod_CFLAGS) (apple_mod_LDFLAGS, msdos_mod_SOURCES, msdos_mod_CFLAGS) (msdos_mod_LDFLAGS, sun_mod_SOURCES, sun_mod_CFLAGS) (sun_mod_LDFLAGS, acorn_mod_SOURCES, acorn_mod_CFLAGS) (acorn_mod_LDFLAGS, gpt_mod_SOURCES, gpt_mod_CFLAGS) (gpt_mod_LDFLAGS): Rename to ... (part_amiga_mod_SOURCES, part_amiga_mod_CFLAGS, part_amiga_mod_LDFLAGS) (part_apple_mod_SOURCES, part_apple_mod_CFLAGS, part_apple_mod_LDFLAGS) (part_msdos_mod_SOURCES, part_msdos_mod_CFLAGS, part_msdos_mod_LDFLAGS) (part_sun_mod_SOURCES, part_sun_mod_CFLAGS, part_sun_mod_LDFLAGS) (part_acorn_mod_SOURCES, part_acorn_mod_CFLAGS, part_acorn_mod_LDFLAGS) (part_gpt_mod_SOURCES, part_gpt_mod_CFLAGS) (part_gpt_mod_LDFLAGS): ... this. (pkglib_MODULES): Prefix partition modules with `part_'. Rename `pcpart.mod' to `msdospart.mod'. (pcpart_mod_SOURCES, pcpart_mod_CFLAGS, pcpart_mod_LDFLAGS): Rename to ... (msdospart_mod_SOURCES, msdospart_mod_CFLAGS) (msdospart_mod_LDFLAGS): ... this.
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#include <grub/msdos_partition.h>
#include <grub/partition.h>
#include <grub/misc.h>
#include <grub/mm.h>
#include <grub/fs.h>
2010-01-03 Carles Pina i Estany <carles@pina.cat> * commands/acpi.c: Gettextizze help strings and/or options. Include `grub/i18n.h' if needed. * commands/blocklist.c: Likewise. * commands/boot.c: Likewise. * commands/cat.c: Likewise. * commands/cmp.c: Likewise. * commands/configfile.c: Likewise. * commands/crc.c: Likewise. * commands/date.c: Likewise. * commands/echo.c: Likewise. * commands/efi/fixvideo.c: Likewise. * commands/efi/loadbios.c: Likewise. * commands/gptsync.c: Likewise. * commands/halt.c: Likewise. * commands/handler.c: Likewise. * commands/hdparm.c: Likewise. * commands/hexdump.c: Likewise. * commands/i386/cpuid.c: Likewise. * commands/i386/pc/drivemap.c: Likewise. * commands/i386/pc/halt.c: Likewise. * commands/i386/pc/pxecmd.c: Likewise. * commands/i386/pc/vbeinfo.c: Likewise. * commands/i386/pc/vbetest.c: Likewise. * commands/ieee1275/suspend.c: Likewise. * commands/keystatus.c: Likewise. * commands/loadenv.c: Likewise. * commands/ls.c: Likewise. * commands/lsmmap.c: Likewise. * commands/lspci.c: Likewise. * commands/memrw.c: Likewise. * commands/minicmd.c: Likewise. * commands/parttool.c: Likewise. * commands/password.c: Likewise. * commands/probe.c: Likewise. * commands/read.c: Likewise. * commands/reboot.c: Likewise. * commands/search.c: Likewise. * commands/sleep.c: Likewise. * commands/test.c: Likewise. * commands/true.c: Likewise. * commands/usbtest.c: Likewise. * commands/videotest.c: Likewise. * commands/xnu_uuid.c: Likewise. * disk/loopback.c: Likewise. * hello/hello.c: Likewise. * loader/i386/bsd.c: Likewise. * term/i386/pc/serial.c: Likewise. * po/POTFILES: Add new files.
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#include <grub/i18n.h>
GRUB_MOD_LICENSE ("GPLv3+");
/* Convert a LBA address to a CHS address in the INT 13 format. */
/* Taken from grub1. */
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/* XXX: use hardcoded geometry of C = 1024, H = 255, S = 63.
Is it a problem?
*/
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static void
lba_to_chs (grub_uint32_t lba, grub_uint8_t *cl, grub_uint8_t *ch,
grub_uint8_t *dh)
{
grub_uint32_t cylinder, head, sector;
grub_uint32_t sectors = 63, heads = 255, cylinders = 1024;
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sector = lba % sectors + 1;
head = (lba / sectors) % heads;
cylinder = lba / (sectors * heads);
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if (cylinder >= cylinders)
{
*cl = *ch = *dh = 0xff;
return;
}
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*cl = sector | ((cylinder & 0x300) >> 2);
*ch = cylinder & 0xFF;
*dh = head;
}
static grub_err_t
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grub_cmd_gptsync (grub_command_t cmd __attribute__ ((unused)),
int argc, char **args)
{
grub_device_t dev;
2009-08-23 Robert Millan <rmh.grub@aybabtu.com> * partmap/pc.c: Rename to ... * partmap/msdos.c: ... this. Update all users. (grub_pc_partition_map): Rename to ... (grub_msdos_partition_map): ... this. Update all users. * parttool/pcpart.c: Rename to ... * parttool/msdospart.c: ... this. Update all users. * include/grub/pc_partition.h: Rename to ... * include/grub/msdos_partition.h: ... this. Update all users. (grub_pc_partition_bsd_entry): Rename to ... (grub_msdos_partition_bsd_entry): ... this. Update all users. (grub_pc_partition_disk_label): Rename to ... (grub_msdos_partition_disk_label): ... this. Update all users. (grub_pc_partition_entry): Rename to ... (grub_msdos_partition_entry): ... this. Update all users. (grub_pc_partition_mbr): Rename to ... (grub_msdos_partition_mbr): ... this. Update all users. (grub_pc_partition): Rename to ... (grub_msdos_partition): ... this. Update all users. (grub_pc_partition_is_empty): Rename to ... (grub_msdos_partition_is_empty): ... this. Update all users. (grub_pc_partition_is_extended): Rename to ... (grub_msdos_partition_is_extended): ... this. Update all users. (grub_pc_partition_is_bsd): Rename to ... (grub_msdos_partition_is_bsd): ... this. Update all users. * conf/common.rmk (amiga_mod_SOURCES, amiga_mod_CFLAGS) (amiga_mod_LDFLAGS, apple_mod_SOURCES, apple_mod_CFLAGS) (apple_mod_LDFLAGS, msdos_mod_SOURCES, msdos_mod_CFLAGS) (msdos_mod_LDFLAGS, sun_mod_SOURCES, sun_mod_CFLAGS) (sun_mod_LDFLAGS, acorn_mod_SOURCES, acorn_mod_CFLAGS) (acorn_mod_LDFLAGS, gpt_mod_SOURCES, gpt_mod_CFLAGS) (gpt_mod_LDFLAGS): Rename to ... (part_amiga_mod_SOURCES, part_amiga_mod_CFLAGS, part_amiga_mod_LDFLAGS) (part_apple_mod_SOURCES, part_apple_mod_CFLAGS, part_apple_mod_LDFLAGS) (part_msdos_mod_SOURCES, part_msdos_mod_CFLAGS, part_msdos_mod_LDFLAGS) (part_sun_mod_SOURCES, part_sun_mod_CFLAGS, part_sun_mod_LDFLAGS) (part_acorn_mod_SOURCES, part_acorn_mod_CFLAGS, part_acorn_mod_LDFLAGS) (part_gpt_mod_SOURCES, part_gpt_mod_CFLAGS) (part_gpt_mod_LDFLAGS): ... this. (pkglib_MODULES): Prefix partition modules with `part_'. Rename `pcpart.mod' to `msdospart.mod'. (pcpart_mod_SOURCES, pcpart_mod_CFLAGS, pcpart_mod_LDFLAGS): Rename to ... (msdospart_mod_SOURCES, msdospart_mod_CFLAGS) (msdospart_mod_LDFLAGS): ... this.
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struct grub_msdos_partition_mbr mbr;
struct grub_partition *partition;
grub_disk_addr_t first_sector;
int numactive = 0;
int i;
if (argc < 1)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "device name required");
if (argc > 4)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "only 3 partitions can be "
"in hybrid MBR");
if (args[0][0] == '(' && args[0][grub_strlen (args[0]) - 1] == ')')
{
args[0][grub_strlen (args[0]) - 1] = 0;
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dev = grub_device_open (args[0] + 1);
args[0][grub_strlen (args[0])] = ')';
}
else
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dev = grub_device_open (args[0]);
if (! dev)
return grub_errno;
if (! dev->disk)
{
grub_device_close (dev);
return grub_error (GRUB_ERR_BAD_ARGUMENT, "not a disk");
}
/* Read the protective MBR. */
if (grub_disk_read (dev->disk, 0, 0, sizeof (mbr), &mbr))
{
grub_device_close (dev);
return grub_errno;
}
/* Check if it is valid. */
if (mbr.signature != grub_cpu_to_le16_compile_time (GRUB_PC_PARTITION_SIGNATURE))
{
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grub_device_close (dev);
return grub_error (GRUB_ERR_BAD_PART_TABLE, "no signature");
}
/* Make sure the MBR is a protective MBR and not a normal MBR. */
for (i = 0; i < 4; i++)
if (mbr.entries[i].type == GRUB_PC_PARTITION_TYPE_GPT_DISK)
break;
if (i == 4)
{
grub_device_close (dev);
return grub_error (GRUB_ERR_BAD_PART_TABLE, "no GPT partition map found");
}
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first_sector = dev->disk->total_sectors;
for (i = 1; i < argc; i++)
{
char *separator, csep = 0;
grub_uint8_t type;
separator = grub_strchr (args[i], '+');
if (! separator)
separator = grub_strchr (args[i], '-');
if (separator)
{
csep = *separator;
*separator = 0;
}
partition = grub_partition_probe (dev->disk, args[i]);
if (separator)
*separator = csep;
if (! partition)
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{
grub_device_close (dev);
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return grub_error (GRUB_ERR_UNKNOWN_DEVICE,
N_("no such partition"));
}
if (partition->start + partition->len > 0xffffffff)
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{
grub_device_close (dev);
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return grub_error (GRUB_ERR_OUT_OF_RANGE,
"only partitions residing in the first 2TB "
"can be present in hybrid MBR");
}
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if (first_sector > partition->start)
first_sector = partition->start;
if (separator && *(separator + 1))
type = grub_strtoul (separator + 1, 0, 0);
else
{
grub_fs_t fs = 0;
dev->disk->partition = partition;
fs = grub_fs_probe (dev);
/* Unknown filesystem isn't fatal. */
if (grub_errno == GRUB_ERR_UNKNOWN_FS)
{
fs = 0;
grub_errno = GRUB_ERR_NONE;
}
if (fs && grub_strcmp (fs->name, "ntfs") == 0)
type = GRUB_PC_PARTITION_TYPE_NTFS;
else if (fs && grub_strcmp (fs->name, "fat") == 0)
/* FIXME: detect FAT16. */
type = GRUB_PC_PARTITION_TYPE_FAT32_LBA;
else if (fs && (grub_strcmp (fs->name, "hfsplus") == 0
|| grub_strcmp (fs->name, "hfs") == 0))
type = GRUB_PC_PARTITION_TYPE_HFS;
else
/* FIXME: detect more types. */
type = GRUB_PC_PARTITION_TYPE_EXT2FS;
dev->disk->partition = 0;
}
mbr.entries[i].flag = (csep == '+') ? 0x80 : 0;
if (csep == '+')
{
numactive++;
if (numactive == 2)
{
grub_device_close (dev);
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return grub_error (GRUB_ERR_BAD_ARGUMENT,
"only one partition can be active");
}
}
mbr.entries[i].type = type;
mbr.entries[i].start = grub_cpu_to_le32 (partition->start);
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lba_to_chs (partition->start,
&(mbr.entries[i].start_sector),
&(mbr.entries[i].start_cylinder),
&(mbr.entries[i].start_head));
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lba_to_chs (partition->start + partition->len - 1,
&(mbr.entries[i].end_sector),
&(mbr.entries[i].end_cylinder),
&(mbr.entries[i].end_head));
mbr.entries[i].length = grub_cpu_to_le32 (partition->len);
grub_free (partition);
}
for (; i < 4; i++)
grub_memset (&(mbr.entries[i]), 0, sizeof (mbr.entries[i]));
/* The protective partition. */
if (first_sector > 0xffffffff)
first_sector = 0xffffffff;
else
first_sector--;
mbr.entries[0].flag = 0;
mbr.entries[0].type = GRUB_PC_PARTITION_TYPE_GPT_DISK;
mbr.entries[0].start = grub_cpu_to_le32_compile_time (1);
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lba_to_chs (1,
&(mbr.entries[0].start_sector),
&(mbr.entries[0].start_cylinder),
&(mbr.entries[0].start_head));
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lba_to_chs (first_sector,
&(mbr.entries[0].end_sector),
&(mbr.entries[0].end_cylinder),
&(mbr.entries[0].end_head));
mbr.entries[0].length = grub_cpu_to_le32 (first_sector);
mbr.signature = grub_cpu_to_le16_compile_time (GRUB_PC_PARTITION_SIGNATURE);
if (grub_disk_write (dev->disk, 0, 0, sizeof (mbr), &mbr))
{
grub_device_close (dev);
return grub_errno;
}
grub_device_close (dev);
grub_printf_ (N_("New MBR is written to `%s'\n"), args[0]);
return GRUB_ERR_NONE;
}
static grub_command_t cmd;
GRUB_MOD_INIT(gptsync)
{
(void) mod; /* To stop warning. */
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cmd = grub_register_command ("gptsync", grub_cmd_gptsync,
2010-01-03 Carles Pina i Estany <carles@pina.cat> * commands/acpi.c: Gettextizze help strings and/or options. Include `grub/i18n.h' if needed. * commands/blocklist.c: Likewise. * commands/boot.c: Likewise. * commands/cat.c: Likewise. * commands/cmp.c: Likewise. * commands/configfile.c: Likewise. * commands/crc.c: Likewise. * commands/date.c: Likewise. * commands/echo.c: Likewise. * commands/efi/fixvideo.c: Likewise. * commands/efi/loadbios.c: Likewise. * commands/gptsync.c: Likewise. * commands/halt.c: Likewise. * commands/handler.c: Likewise. * commands/hdparm.c: Likewise. * commands/hexdump.c: Likewise. * commands/i386/cpuid.c: Likewise. * commands/i386/pc/drivemap.c: Likewise. * commands/i386/pc/halt.c: Likewise. * commands/i386/pc/pxecmd.c: Likewise. * commands/i386/pc/vbeinfo.c: Likewise. * commands/i386/pc/vbetest.c: Likewise. * commands/ieee1275/suspend.c: Likewise. * commands/keystatus.c: Likewise. * commands/loadenv.c: Likewise. * commands/ls.c: Likewise. * commands/lsmmap.c: Likewise. * commands/lspci.c: Likewise. * commands/memrw.c: Likewise. * commands/minicmd.c: Likewise. * commands/parttool.c: Likewise. * commands/password.c: Likewise. * commands/probe.c: Likewise. * commands/read.c: Likewise. * commands/reboot.c: Likewise. * commands/search.c: Likewise. * commands/sleep.c: Likewise. * commands/test.c: Likewise. * commands/true.c: Likewise. * commands/usbtest.c: Likewise. * commands/videotest.c: Likewise. * commands/xnu_uuid.c: Likewise. * disk/loopback.c: Likewise. * hello/hello.c: Likewise. * loader/i386/bsd.c: Likewise. * term/i386/pc/serial.c: Likewise. * po/POTFILES: Add new files.
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N_("DEVICE [PARTITION[+/-[TYPE]]] ..."),
/* TRANSLATORS: MBR type is one-byte partition
type id. */
2010-01-03 Carles Pina i Estany <carles@pina.cat> * commands/acpi.c: Gettextizze help strings and/or options. Include `grub/i18n.h' if needed. * commands/blocklist.c: Likewise. * commands/boot.c: Likewise. * commands/cat.c: Likewise. * commands/cmp.c: Likewise. * commands/configfile.c: Likewise. * commands/crc.c: Likewise. * commands/date.c: Likewise. * commands/echo.c: Likewise. * commands/efi/fixvideo.c: Likewise. * commands/efi/loadbios.c: Likewise. * commands/gptsync.c: Likewise. * commands/halt.c: Likewise. * commands/handler.c: Likewise. * commands/hdparm.c: Likewise. * commands/hexdump.c: Likewise. * commands/i386/cpuid.c: Likewise. * commands/i386/pc/drivemap.c: Likewise. * commands/i386/pc/halt.c: Likewise. * commands/i386/pc/pxecmd.c: Likewise. * commands/i386/pc/vbeinfo.c: Likewise. * commands/i386/pc/vbetest.c: Likewise. * commands/ieee1275/suspend.c: Likewise. * commands/keystatus.c: Likewise. * commands/loadenv.c: Likewise. * commands/ls.c: Likewise. * commands/lsmmap.c: Likewise. * commands/lspci.c: Likewise. * commands/memrw.c: Likewise. * commands/minicmd.c: Likewise. * commands/parttool.c: Likewise. * commands/password.c: Likewise. * commands/probe.c: Likewise. * commands/read.c: Likewise. * commands/reboot.c: Likewise. * commands/search.c: Likewise. * commands/sleep.c: Likewise. * commands/test.c: Likewise. * commands/true.c: Likewise. * commands/usbtest.c: Likewise. * commands/videotest.c: Likewise. * commands/xnu_uuid.c: Likewise. * disk/loopback.c: Likewise. * hello/hello.c: Likewise. * loader/i386/bsd.c: Likewise. * term/i386/pc/serial.c: Likewise. * po/POTFILES: Add new files.
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N_("Fill hybrid MBR of GPT drive DEVICE. "
"Specified partitions will be a part "
"of hybrid MBR. Up to 3 partitions are "
"allowed. TYPE is an MBR type. "
"+ means that partition is active. "
2010-01-03 Carles Pina i Estany <carles@pina.cat> * commands/acpi.c: Gettextizze help strings and/or options. Include `grub/i18n.h' if needed. * commands/blocklist.c: Likewise. * commands/boot.c: Likewise. * commands/cat.c: Likewise. * commands/cmp.c: Likewise. * commands/configfile.c: Likewise. * commands/crc.c: Likewise. * commands/date.c: Likewise. * commands/echo.c: Likewise. * commands/efi/fixvideo.c: Likewise. * commands/efi/loadbios.c: Likewise. * commands/gptsync.c: Likewise. * commands/halt.c: Likewise. * commands/handler.c: Likewise. * commands/hdparm.c: Likewise. * commands/hexdump.c: Likewise. * commands/i386/cpuid.c: Likewise. * commands/i386/pc/drivemap.c: Likewise. * commands/i386/pc/halt.c: Likewise. * commands/i386/pc/pxecmd.c: Likewise. * commands/i386/pc/vbeinfo.c: Likewise. * commands/i386/pc/vbetest.c: Likewise. * commands/ieee1275/suspend.c: Likewise. * commands/keystatus.c: Likewise. * commands/loadenv.c: Likewise. * commands/ls.c: Likewise. * commands/lsmmap.c: Likewise. * commands/lspci.c: Likewise. * commands/memrw.c: Likewise. * commands/minicmd.c: Likewise. * commands/parttool.c: Likewise. * commands/password.c: Likewise. * commands/probe.c: Likewise. * commands/read.c: Likewise. * commands/reboot.c: Likewise. * commands/search.c: Likewise. * commands/sleep.c: Likewise. * commands/test.c: Likewise. * commands/true.c: Likewise. * commands/usbtest.c: Likewise. * commands/videotest.c: Likewise. * commands/xnu_uuid.c: Likewise. * disk/loopback.c: Likewise. * hello/hello.c: Likewise. * loader/i386/bsd.c: Likewise. * term/i386/pc/serial.c: Likewise. * po/POTFILES: Add new files.
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"Only one partition can be active."));
}
GRUB_MOD_FINI(gptsync)
{
grub_unregister_command (cmd);
}