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Reimport nestpart

This commit is contained in:
Vladimir 'phcoder' Serbinenko 2010-02-06 18:43:37 +01:00
parent bf7fcba2d7
commit 15cb7d433f
26 changed files with 561 additions and 720 deletions
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73
ChangeLog.nestpart Normal file
View File

@ -0,0 +1,73 @@
2009-06-08 Vladimir Serbinenko <phcoder@gmail.com>
Nested partitions
* commands/blocklist.c (grub_cmd_blocklist): Don't check whether
'partition' is NULL, grub_partition_get_start already does that.
* commands/loadenv.c (check_blocklists): Likewise.
(write_blocklists): Likewise.
* conf/common.rmk (grub_probe_SOURCES): Add partmap/bsdlabel.c.
(grub_fstest_SOURCES): Likewise.
(pkglib_MODULES): Add bsdlabel.mod.
(bsdlabel_mod_SOURCES): New variable.
(bsdlabel_mod_CFLAGS): Likewise.
(bsdlabel_mod_LDFLAGS): Likewise.
* conf/i386-coreboot.rmk (grub_emu_SOURCES): Add partmap/bsdlabel.c.
* conf/i386-pc.rmk (grub_setup_SOURCES): Likewise.
(grub_emu_SOURCES): Likewise.
* conf/powerpc-ieee1275.rmk (grub_emu_SOURCES): Likewise.
* conf/sparc64-ieee1275.rmk (grub_emu_SOURCES): Likewise.
* include/grub/bsdlabel.h: New file.
* include/grub/partition.h (grub_partition_map): Remove 'probe' and
'get_name'.
(grub_partition): Add 'parent' and 'number'.
(grub_partition_get_start): Handle nested partitions.
* include/grub/pc_partition.h: Remove bsd-related entries.
(grub_pc_partition): Remove.
* kern/disk.c (grub_disk_close): Free partition data.
(grub_disk_adjust_range): Handle nested partitions.
* kern/partition.c (grub_partition_map_probe): New function.
(grub_partition_probe): Parse name to number, handle subpartitions.
(get_partmap): New function.
(grub_partition_iterate): Handle subpartitions.
(grub_partition_get_name): Likewise.
* loader/i386/pc/bsd.c (grub_bsd_get_device): Likewise.
* loader/i386/multiboot.c (grub_multiboot_get_bootdev): Likewise.
* loader/i386/pc/chainloader.c (grub_chainloader_cmd): Likewise.
* partmap/acorn.c (acorn_partition_map_iterate): Don't force raw access.
Set 'number'.
(acorn_partition_map_probe): Remove.
(acorn_partition_map_get_name): Likewise.
* partmap/amiga.c (amiga_partition_map_iterate): Don't force raw access.
Set 'number'.
Set 'index' to 0 since there can be only one partition entry per sector.
(amiga_partition_map_probe): Remove.
(amiga_partition_map_get_name): Likewise.
* partmap/apple.c (apple_partition_map_iterate): Don't force raw access.
Set 'number'.
Set 'offset' and 'index' to real positions of partitions.
(apple_partition_map_probe): Remove.
(apple_partition_map_get_name): Likewise.
* partmap/bsdlabel.c: New file.
* partmap/gpt.c (gpt_partition_map_iterate): Don't force raw access.
Set 'number'.
Allocate 'data' so it can be correctly freed.
Set 'index' to offset inside sector.
(gpt_partition_map_probe): Remove.
(gpt_partition_map_get_name): Likewise.
* partmap/pc.c (grub_partition_parse): Remove.
(pc_partition_map_iterate): Don't force raw access.
Set 'number'.
Make 'ext_offset' a local variable.
(pc_partition_map_probe): Remove.
(pc_partition_map_get_name): Remove.
* partmap/sun.c (sun_partition_map_iterate): Don't force raw access.
Set 'number'.
(sun_partition_map_probe): Remove.
(sun_partition_map_get_name): Likewise.
* parttool/pcpart.c (grub_pcpart_boot): Handle nested partitions.
(grub_pcpart_type): Likewise.
* util/hostdisk.c (open_device): Handle new numbering scheme.
(grub_util_biosdisk_get_grub_dev): Handle nested partitions.
* util/i386/pc/grub-setup.c (setup): Handle new numbering scheme.
* util/grub-probe.c (probe_partmap): Handle nested paritions.

3
commands/blocklist.c
View File

@ -90,8 +90,7 @@ grub_cmd_blocklist (grub_command_t cmd __attribute__ ((unused)),
return grub_error (GRUB_ERR_BAD_DEVICE,
"this command is available only for disk devices");
if (file->device->disk->partition)
part_start = grub_partition_get_start (file->device->disk->partition);
part_start = grub_partition_get_start (file->device->disk->partition);
file->read_hook = read_blocklist;

11
commands/loadenv.c
View File

@ -235,10 +235,8 @@ check_blocklists (grub_envblk_t envblk, struct blocklist *blocklists,
/* One more sanity check. Re-read all sectors by blocklists, and compare
those with the data read via a file. */
disk = file->device->disk;
if (disk->partition)
part_start = grub_partition_get_start (disk->partition);
else
part_start = 0;
part_start = grub_partition_get_start (disk->partition);
buf = grub_envblk_buffer (envblk);
for (p = blocklists, index = 0; p; index += p->length, p = p->next)
@ -268,10 +266,7 @@ write_blocklists (grub_envblk_t envblk, struct blocklist *blocklists,
buf = grub_envblk_buffer (envblk);
disk = file->device->disk;
if (disk->partition)
part_start = grub_partition_get_start (disk->partition);
else
part_start = 0;
part_start = grub_partition_get_start (disk->partition);
index = 0;
for (p = blocklists; p; index += p->length, p = p->next)

2
conf/any-emu.rmk
View File

@ -34,7 +34,7 @@ grub_emu_SOURCES = commands/minicmd.c commands/cat.c commands/cmp.c \
script/main.c script/execute.c script/function.c \
script/lexer.c script/script.c grub_script.tab.c \
partmap/amiga.c partmap/apple.c partmap/msdos.c partmap/sun.c \
partmap/acorn.c partmap/gpt.c \
partmap/acorn.c partmap/gpt.c partmap/bsd.c \
\
fs/affs.c fs/cpio.c fs/fat.c fs/ext2.c fs/hfs.c \
fs/hfsplus.c fs/iso9660.c fs/udf.c fs/jfs.c fs/minix.c \

12
conf/common.rmk
View File

@ -32,7 +32,8 @@ grub_probe_SOURCES = gnulib/progname.c util/grub-probe.c \
fs/ufs.c fs/ufs2.c fs/xfs.c fs/afs.c fs/afs_be.c \
fs/befs.c fs/befs_be.c fs/tar.c \
\
partmap/msdos.c partmap/apple.c partmap/sun.c partmap/gpt.c\
partmap/msdos.c partmap/bsdlabel.c partmap/apple.c \
partmap/sun.c partmap/gpt.c\
kern/fs.c kern/env.c fs/fshelp.c \
disk/raid.c disk/mdraid_linux.c disk/lvm.c grub_probe_init.c
@ -69,8 +70,8 @@ grub_fstest_SOURCES = gnulib/progname.c util/grub-fstest.c util/hostfs.c \
fs/ufs.c fs/ufs2.c fs/xfs.c fs/afs.c fs/afs_be.c fs/befs.c \
fs/befs_be.c fs/tar.c \
\
kern/partition.c partmap/msdos.c partmap/apple.c partmap/sun.c \
partmap/gpt.c \
kern/partition.c partmap/msdos.c partmap/bsdlabel.c \
partmap/apple.c partmap/sun.c partmap/gpt.c \
kern/fs.c kern/env.c fs/fshelp.c disk/raid.c \
disk/raid5_recover.c disk/raid6_recover.c \
disk/mdraid_linux.c disk/dmraid_nvidia.c disk/lvm.c \
@ -376,6 +377,11 @@ part_gpt_mod_SOURCES = partmap/gpt.c
part_gpt_mod_CFLAGS = $(COMMON_CFLAGS)
part_gpt_mod_LDFLAGS = $(COMMON_LDFLAGS)
pkglib_MODULES += part_bsd.mod
part_bsd_mod_SOURCES = partmap/bsdlabel.c
part_bsd_mod_CFLAGS = $(COMMON_CFLAGS)
part_bsd_mod_LDFLAGS = $(COMMON_LDFLAGS)
# Special disk structures and generic drivers
pkglib_MODULES += raid.mod raid5rec.mod raid6rec.mod mdraid.mod dm_nv.mod \

2
conf/i386-pc.rmk
View File

@ -104,7 +104,7 @@ grub_setup_SOURCES = gnulib/progname.c \
fs/ufs.c fs/ufs2.c fs/xfs.c fs/afs.c fs/afs_be.c \
fs/befs.c fs/befs_be.c fs/tar.c \
\
partmap/msdos.c partmap/gpt.c \
partmap/msdos.c partmap/bsdlabel.c partmap/gpt.c \
\
disk/raid.c disk/mdraid_linux.c disk/lvm.c \
util/raid.c util/lvm.c \

4
conf/sparc64-ieee1275.rmk
View File

@ -78,8 +78,8 @@ grub_setup_SOURCES = util/sparc64/ieee1275/grub-setup.c util/hostdisk.c \
fs/ufs.c fs/ufs2.c fs/xfs.c fs/afs.c fs/afs_be.c \
fs/befs.c fs/befs_be.c fs/tar.c \
\
partmap/amiga.c partmap/apple.c partmap/msdos.c \
partmap/sun.c partmap/acorn.c \
partmap/amiga.c partmap/apple.c partmap/msdos.c \
partmap/bsdlabel.c partmap/sun.c partmap/acorn.c \
\
disk/raid.c disk/mdraid_linux.c disk/lvm.c \
util/raid.c util/lvm.c gnulib/progname.c \

89
include/grub/bsdlabel.h Normal file
View File

@ -0,0 +1,89 @@
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2004,2007 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/>.
*/
#ifndef GRUB_BSDLABEL_PARTITION_HEADER
#define GRUB_BSDLABEL_PARTITION_HEADER 1
/* Constants for BSD disk label. */
#define GRUB_PC_PARTITION_BSD_LABEL_SECTOR 1
#define GRUB_PC_PARTITION_BSD_LABEL_MAGIC 0x82564557
/* BSD partition types. */
#define GRUB_PC_PARTITION_BSD_TYPE_UNUSED 0
#define GRUB_PC_PARTITION_BSD_TYPE_SWAP 1
#define GRUB_PC_PARTITION_BSD_TYPE_V6 2
#define GRUB_PC_PARTITION_BSD_TYPE_V7 3
#define GRUB_PC_PARTITION_BSD_TYPE_SYSV 4
#define GRUB_PC_PARTITION_BSD_TYPE_V71K 5
#define GRUB_PC_PARTITION_BSD_TYPE_V8 6
#define GRUB_PC_PARTITION_BSD_TYPE_BSDFFS 7
#define GRUB_PC_PARTITION_BSD_TYPE_MSDOS 8
#define GRUB_PC_PARTITION_BSD_TYPE_BSDLFS 9
#define GRUB_PC_PARTITION_BSD_TYPE_OTHER 10
#define GRUB_PC_PARTITION_BSD_TYPE_HPFS 11
#define GRUB_PC_PARTITION_BSD_TYPE_ISO9660 12
#define GRUB_PC_PARTITION_BSD_TYPE_BOOT 13
/* FreeBSD-specific types. */
#define GRUB_PC_PARTITION_FREEBSD_TYPE_VINUM 14
#define GRUB_PC_PARTITION_FREEBSD_TYPE_RAID 15
#define GRUB_PC_PARTITION_FREEBSD_TYPE_JFS2 21
/* NetBSD-specific types. */
#define GRUB_PC_PARTITION_NETBSD_TYPE_ADOS 14
#define GRUB_PC_PARTITION_NETBSD_TYPE_HFS 15
#define GRUB_PC_PARTITION_NETBSD_TYPE_FILECORE 16
#define GRUB_PC_PARTITION_NETBSD_TYPE_EXT2FS 17
#define GRUB_PC_PARTITION_NETBSD_TYPE_NTFS 18
#define GRUB_PC_PARTITION_NETBSD_TYPE_RAID 19
#define GRUB_PC_PARTITION_NETBSD_TYPE_CCD 20
#define GRUB_PC_PARTITION_NETBSD_TYPE_JFS2 21
#define GRUB_PC_PARTITION_NETBSD_TYPE_APPLEUFS 22
/* OpenBSD-specific types. */
#define GRUB_PC_PARTITION_OPENBSD_TYPE_ADOS 14
#define GRUB_PC_PARTITION_OPENBSD_TYPE_HFS 15
#define GRUB_PC_PARTITION_OPENBSD_TYPE_FILECORE 16
#define GRUB_PC_PARTITION_OPENBSD_TYPE_EXT2FS 17
#define GRUB_PC_PARTITION_OPENBSD_TYPE_NTFS 18
#define GRUB_PC_PARTITION_OPENBSD_TYPE_RAID 19
/* The BSD partition entry. */
struct grub_partition_bsd_entry
{
grub_uint32_t size;
grub_uint32_t offset;
grub_uint32_t fragment_size;
grub_uint8_t fs_type;
grub_uint8_t fs_fragments;
grub_uint16_t fs_cylinders;
} __attribute__ ((packed));
/* The BSD disk label. Only define members useful for GRUB. */
struct grub_partition_bsd_disk_label
{
grub_uint32_t magic;
grub_uint8_t padding[128];
grub_uint32_t magic2;
grub_uint16_t checksum;
grub_uint16_t num_partitions;
grub_uint32_t boot_size;
grub_uint32_t superblock_size;
} __attribute__ ((packed));
#endif /* ! GRUB_PC_PARTITION_HEADER */

94
include/grub/msdos_partition.h
View File

@ -53,75 +53,6 @@
#define GRUB_PC_PARTITION_TYPE_GPT_DISK 0xee
#define GRUB_PC_PARTITION_TYPE_LINUX_RAID 0xfd
/* Constants for BSD disk label. */
#define GRUB_PC_PARTITION_BSD_LABEL_SECTOR 1
#define GRUB_PC_PARTITION_BSD_LABEL_MAGIC 0x82564557
#define GRUB_PC_PARTITION_BSD_MAX_ENTRIES 8
/* BSD partition types. */
#define GRUB_PC_PARTITION_BSD_TYPE_UNUSED 0
#define GRUB_PC_PARTITION_BSD_TYPE_SWAP 1
#define GRUB_PC_PARTITION_BSD_TYPE_V6 2
#define GRUB_PC_PARTITION_BSD_TYPE_V7 3
#define GRUB_PC_PARTITION_BSD_TYPE_SYSV 4
#define GRUB_PC_PARTITION_BSD_TYPE_V71K 5
#define GRUB_PC_PARTITION_BSD_TYPE_V8 6
#define GRUB_PC_PARTITION_BSD_TYPE_BSDFFS 7
#define GRUB_PC_PARTITION_BSD_TYPE_MSDOS 8
#define GRUB_PC_PARTITION_BSD_TYPE_BSDLFS 9
#define GRUB_PC_PARTITION_BSD_TYPE_OTHER 10
#define GRUB_PC_PARTITION_BSD_TYPE_HPFS 11
#define GRUB_PC_PARTITION_BSD_TYPE_ISO9660 12
#define GRUB_PC_PARTITION_BSD_TYPE_BOOT 13
/* FreeBSD-specific types. */
#define GRUB_PC_PARTITION_FREEBSD_TYPE_VINUM 14
#define GRUB_PC_PARTITION_FREEBSD_TYPE_RAID 15
#define GRUB_PC_PARTITION_FREEBSD_TYPE_JFS2 21
/* NetBSD-specific types. */
#define GRUB_PC_PARTITION_NETBSD_TYPE_ADOS 14
#define GRUB_PC_PARTITION_NETBSD_TYPE_HFS 15
#define GRUB_PC_PARTITION_NETBSD_TYPE_FILECORE 16
#define GRUB_PC_PARTITION_NETBSD_TYPE_EXT2FS 17
#define GRUB_PC_PARTITION_NETBSD_TYPE_NTFS 18
#define GRUB_PC_PARTITION_NETBSD_TYPE_RAID 19
#define GRUB_PC_PARTITION_NETBSD_TYPE_CCD 20
#define GRUB_PC_PARTITION_NETBSD_TYPE_JFS2 21
#define GRUB_PC_PARTITION_NETBSD_TYPE_APPLEUFS 22
/* OpenBSD-specific types. */
#define GRUB_PC_PARTITION_OPENBSD_TYPE_ADOS 14
#define GRUB_PC_PARTITION_OPENBSD_TYPE_HFS 15
#define GRUB_PC_PARTITION_OPENBSD_TYPE_FILECORE 16
#define GRUB_PC_PARTITION_OPENBSD_TYPE_EXT2FS 17
#define GRUB_PC_PARTITION_OPENBSD_TYPE_NTFS 18
#define GRUB_PC_PARTITION_OPENBSD_TYPE_RAID 19
/* The BSD partition entry. */
struct grub_msdos_partition_bsd_entry
{
grub_uint32_t size;
grub_uint32_t offset;
grub_uint32_t fragment_size;
grub_uint8_t fs_type;
grub_uint8_t fs_fragments;
grub_uint16_t fs_cylinders;
} __attribute__ ((packed));
/* The BSD disk label. Only define members useful for GRUB. */
struct grub_msdos_partition_disk_label
{
grub_uint32_t magic;
grub_uint8_t padding[128];
grub_uint32_t magic2;
grub_uint16_t checksum;
grub_uint16_t num_partitions;
grub_uint32_t boot_size;
grub_uint32_t superblock_size;
struct grub_msdos_partition_bsd_entry entries[GRUB_PC_PARTITION_BSD_MAX_ENTRIES];
} __attribute__ ((packed));
/* The partition entry. */
struct grub_msdos_partition_entry
{
@ -168,23 +99,6 @@ struct grub_msdos_partition_mbr
} __attribute__ ((packed));
struct grub_msdos_partition
{
/* The DOS partition number. */
int dos_part;
/* The BSD partition number (a == 0). */
int bsd_part;
/* The DOS partition type. */
int dos_type;
/* The BSD partition type. */
int bsd_type;
/* The offset of the extended partition. */
unsigned long ext_offset;
};
static inline int
grub_msdos_partition_is_empty (int type)
@ -200,12 +114,4 @@ grub_msdos_partition_is_extended (int type)
|| type == GRUB_PC_PARTITION_TYPE_LINUX_EXTENDED);
}
static inline int
grub_msdos_partition_is_bsd (int type)
{
return (type == GRUB_PC_PARTITION_TYPE_FREEBSD
|| type == GRUB_PC_PARTITION_TYPE_OPENBSD
|| type == GRUB_PC_PARTITION_TYPE_NETBSD);
}
#endif /* ! GRUB_PC_PARTITION_HEADER */

21
include/grub/partition.h
View File

@ -36,13 +36,6 @@ struct grub_partition_map
int (*hook) (struct grub_disk *disk,
const grub_partition_t partition));
/* Return the partition named STR on the disk DISK. */
grub_partition_t (*probe) (struct grub_disk *disk,
const char *str);
/* Return the name of the partition PARTITION. */
char *(*get_name) (const grub_partition_t partition);
/* The next partition map type. */
struct grub_partition_map *next;
};
@ -51,6 +44,9 @@ typedef struct grub_partition_map *grub_partition_map_t;
/* Partition description. */
struct grub_partition
{
/* The partition number. */
int number;
/* The start sector. */
grub_disk_addr_t start;
@ -66,6 +62,9 @@ struct grub_partition
/* Partition map type specific data. */
void *data;
/* Parent partition map. */
struct grub_partition *parent;
/* The type partition map. */
grub_partition_map_t partmap;
};
@ -101,7 +100,13 @@ void grub_apple_partition_map_fini (void);
static inline grub_disk_addr_t
grub_partition_get_start (const grub_partition_t p)
{
return p->start;
grub_partition_t part;
grub_uint64_t part_start = 0;
for (part = p; part; part = part->parent)
part_start += part->start;
return part_start;
}
static inline grub_uint64_t

18
kern/disk.c
View File

@ -330,6 +330,7 @@ grub_disk_open (const char *name)
void
grub_disk_close (grub_disk_t disk)
{
grub_partition_t part;
grub_dprintf ("disk", "Closing `%s'.\n", disk->name);
if (disk->dev && disk->dev->close)
@ -338,7 +339,13 @@ grub_disk_close (grub_disk_t disk)
/* Reset the timer. */
grub_last_time = grub_get_time_ms ();
grub_free (disk->partition);
while (disk->partition)
{
part = disk->partition->parent;
grub_free (disk->partition->data);
grub_free (disk->partition);
disk->partition = part;
}
grub_free ((void *) disk->name);
grub_free (disk);
}
@ -349,18 +356,19 @@ grub_disk_close (grub_disk_t disk)
- Verify that the range is inside the partition. */
static grub_err_t
grub_disk_adjust_range (grub_disk_t disk, grub_disk_addr_t *sector,
grub_off_t *offset, grub_size_t size)
grub_off_t *offset, grub_size_t size)
{
grub_partition_t part;
*sector += *offset >> GRUB_DISK_SECTOR_BITS;
*offset &= GRUB_DISK_SECTOR_SIZE - 1;
if (disk->partition)
for (part = disk->partition; part; part = part->parent)
{
grub_disk_addr_t start;
grub_uint64_t len;
start = grub_partition_get_start (disk->partition);
len = grub_partition_get_len (disk->partition);
start = part->start;
len = part->len;
if (*sector >= len
|| len - *sector < ((*offset + size + GRUB_DISK_SECTOR_SIZE - 1)

164
kern/partition.c
View File

@ -17,6 +17,7 @@
*/
#include <grub/misc.h>
#include <grub/mm.h>
#include <grub/partition.h>
#include <grub/disk.h>
@ -54,17 +55,58 @@ grub_partition_map_iterate (int (*hook) (const grub_partition_map_t partmap))
return 0;
}
static grub_partition_t
grub_partition_map_probe (const grub_partition_map_t partmap,
grub_disk_t disk, int partnum)
{
grub_partition_t p = 0;
auto int find_func (grub_disk_t d, const grub_partition_t partition);
int find_func (grub_disk_t d __attribute__ ((unused)),
const grub_partition_t partition)
{
if (partnum == partition->number)
{
p = (grub_partition_t) grub_malloc (sizeof (*p));
if (! p)
return 1;
grub_memcpy (p, partition, sizeof (*p));
return 1;
}
return 0;
}
partmap->iterate (disk, find_func);
if (grub_errno)
goto fail;
return p;
fail:
grub_free (p);
return 0;
}
grub_partition_t
grub_partition_probe (struct grub_disk *disk, const char *str)
{
grub_partition_t part = 0;
grub_partition_t curpart = 0;
grub_partition_t tail;
const char *ptr;
int num;
auto int part_map_probe (const grub_partition_map_t partmap);
int part_map_probe (const grub_partition_map_t partmap)
{
part = partmap->probe (disk, str);
if (part)
disk->partition = part;
curpart = grub_partition_map_probe (partmap, disk, num);
disk->partition = tail;
if (curpart)
return 1;
if (grub_errno == GRUB_ERR_BAD_PART_TABLE)
@ -77,27 +119,54 @@ grub_partition_probe (struct grub_disk *disk, const char *str)
return 1;
}
/* Use the first partition map type found. */
grub_partition_map_iterate (part_map_probe);
part = tail = disk->partition;
for (ptr = str; *ptr;)
{
/* BSD-like partition specification. */
if (*ptr >= 'a' && *ptr <= 'z')
num = *(ptr++) - 'a';
else
num = grub_strtoul (ptr, (char **) &ptr, 0) - 1;
curpart = 0;
/* Use the first partition map type found. */
grub_partition_map_iterate (part_map_probe);
if (! curpart)
{
while (part)
{
curpart = part->parent;
grub_free (part);
part = curpart;
}
return 0;
}
curpart->parent = part;
part = curpart;
if (! ptr || *ptr != ',')
break;
ptr++;
}
return part;
}
int
grub_partition_iterate (struct grub_disk *disk,
int (*hook) (grub_disk_t disk,
const grub_partition_t partition))
static grub_partition_map_t
get_partmap (struct grub_disk *disk)
{
grub_partition_map_t partmap = 0;
int ret = 0;
struct grub_partition part;
int found = 0;
auto int part_map_iterate (const grub_partition_map_t p);
auto int part_map_iterate_hook (grub_disk_t d,
const grub_partition_t partition);
int part_map_iterate_hook (grub_disk_t d __attribute__ ((unused)),
const grub_partition_t partition __attribute__ ((unused)))
const grub_partition_t partition)
{
found = 1;
part = *partition;
return 1;
}
@ -106,22 +175,58 @@ grub_partition_iterate (struct grub_disk *disk,
grub_dprintf ("partition", "Detecting %s...\n", p->name);
p->iterate (disk, part_map_iterate_hook);
if (grub_errno != GRUB_ERR_NONE)
if (grub_errno != GRUB_ERR_NONE || ! found)
{
/* Continue to next partition map type. */
grub_dprintf ("partition", "%s detection failed.\n", p->name);
grub_errno = GRUB_ERR_NONE;
return 0;
}
grub_free (part.data);
grub_dprintf ("partition", "%s detection succeeded.\n", p->name);
partmap = p;
return 1;
}
grub_partition_map_iterate (part_map_iterate);
if (partmap)
ret = partmap->iterate (disk, hook);
return partmap;
}
int
grub_partition_iterate (struct grub_disk *disk,
int (*hook) (grub_disk_t disk,
const grub_partition_t partition))
{
int ret = 0;
auto int part_iterate (grub_disk_t dsk, const grub_partition_t p);
int part_iterate (grub_disk_t dsk,
const grub_partition_t partition)
{
struct grub_partition p = *partition;
grub_partition_map_t partmap = 0;
p.parent = dsk->partition;
dsk->partition = 0;
if (hook (dsk, &p))
return 1;
if (p.start != 0)
{
dsk->partition = &p;
partmap = get_partmap (dsk);
if (partmap)
ret = partmap->iterate (dsk, part_iterate);
}
dsk->partition = p.parent;
return ret;
}
{
grub_partition_map_t partmap = 0;
partmap = get_partmap (disk);
if (partmap)
ret = partmap->iterate (disk, part_iterate);
}
return ret;
}
@ -129,5 +234,30 @@ grub_partition_iterate (struct grub_disk *disk,
char *
grub_partition_get_name (const grub_partition_t partition)
{
return partition->partmap->get_name (partition);
char *out = 0;
/* Even on 64-bit machines this buffer is enough to hold longest number. */
char buf[25];
int curlen = 0;
grub_partition_t part;
for (part = partition; part; part = part->parent)
{
int strl;
grub_snprintf (buf, sizeof (buf), "%d", part->number + 1);
strl = grub_strlen (buf);
if (curlen)
{
out = grub_realloc (out, curlen + strl + 2);
grub_memcpy (out + strl + 1, out, curlen);
out[curlen + 1 + strl] = 0;
grub_memcpy (out, buf, strl);
out[strl] = ',';
curlen = curlen + 1 + strl;
}
else
{
curlen = strl;
out = grub_strdup (buf);
}
}
return out;
}

19
loader/i386/bsd.c
View File

@ -140,7 +140,6 @@ grub_bsd_get_device (grub_uint32_t * biosdev,
grub_uint32_t * unit,
grub_uint32_t * slice, grub_uint32_t * part)
{
char *p;
grub_device_t dev;
#ifdef GRUB_MACHINE_PCBIOS
@ -154,21 +153,13 @@ grub_bsd_get_device (grub_uint32_t * biosdev,
dev = grub_device_open (0);
if (dev && dev->disk && dev->disk->partition)
{
p = dev->disk->partition->partmap->get_name (dev->disk->partition);
if (p)
if (dev->disk->partition->parent)
{
if ((p[0] >= '0') && (p[0] <= '9'))
{
*slice = grub_strtoul (p, &p, 0);
if ((p) && (p[0] == ','))
p++;
}
if ((p[0] >= 'a') && (p[0] <= 'z'))
*part = p[0] - 'a';
*part = dev->disk->partition->number;
*slice = dev->disk->partition->parent->number + 1;
}
else
*slice = dev->disk->partition->number + 1;
}
if (dev)
grub_device_close (dev);

21
loader/i386/multiboot_mbi.c
View File

@ -435,7 +435,6 @@ grub_multiboot_add_module (grub_addr_t start, grub_size_t size,
void
grub_multiboot_set_bootdev (void)
{
char *p;
grub_uint32_t biosdev, slice = ~0, part = ~0;
grub_device_t dev;
@ -448,21 +447,13 @@ grub_multiboot_set_bootdev (void)
dev = grub_device_open (0);
if (dev && dev->disk && dev->disk->partition)
{
p = dev->disk->partition->partmap->get_name (dev->disk->partition);
if (p)
{
if ((p[0] >= '0') && (p[0] <= '9'))
{
slice = grub_strtoul (p, &p, 0) - 1;
if ((p) && (p[0] == ','))
p++;
}
if ((p[0] >= 'a') && (p[0] <= 'z'))
part = p[0] - 'a';
if (dev->disk->partition->parent)
{
part = dev->disk->partition->number;
slice = dev->disk->partition->parent->number;
}
else
slice = dev->disk->partition->number;
}
if (dev)
grub_device_close (dev);

21
loader/i386/pc/chainloader.c
View File

@ -31,6 +31,7 @@
#include <grub/machine/memory.h>
#include <grub/dl.h>
#include <grub/command.h>
#include <grub/msdos_partition.h>
#include <grub/machine/biosnum.h>
#include <grub/i18n.h>
#include <grub/video.h>
@ -98,10 +99,22 @@ grub_chainloader_cmd (const char *filename, grub_chainloader_flags_t flags)
dev = grub_device_open (0);
if (dev && dev->disk && dev->disk->partition)
{
grub_disk_read (dev->disk, dev->disk->partition->offset, 446, 64,
(void *) GRUB_MEMORY_MACHINE_PART_TABLE_ADDR);
part_addr = (void *) (GRUB_MEMORY_MACHINE_PART_TABLE_ADDR
+ (dev->disk->partition->index << 4));
grub_disk_t disk = dev->disk;
if (disk)
{
grub_partition_t p = disk->partition;
if (p && grub_strcmp (p->partmap->name, "part_msdos") == 0)
{
disk->partition = p->parent;
grub_disk_read (disk, p->offset, 446, 64,
(void *) GRUB_MEMORY_MACHINE_PART_TABLE_ADDR);
part_addr = (void *) (GRUB_MEMORY_MACHINE_PART_TABLE_ADDR
+ (p->index << 4));
disk->partition = p;
}
}
}
if (dev)

61
partmap/acorn.c
View File

@ -96,21 +96,17 @@ acorn_partition_map_iterate (grub_disk_t disk,
const grub_partition_t partition))
{
struct grub_partition part;
struct grub_disk raw;
struct linux_part map[LINUX_MAP_ENTRIES];
int i;
grub_disk_addr_t sector;
grub_disk_addr_t sector = 0;
grub_err_t err;
/* Enforce raw disk access. */
raw = *disk;
raw.partition = 0;
err = acorn_partition_map_find (&raw, map, &sector);
err = acorn_partition_map_find (disk, map, &sector);
if (err)
return err;
part.partmap = &grub_acorn_partition_map;
part.data = 0;
for (i = 0; i != LINUX_MAP_ENTRIES; ++i)
{
@ -121,7 +117,7 @@ acorn_partition_map_iterate (grub_disk_t disk,
part.start = sector + map[i].start;
part.len = map[i].size;
part.offset = 6;
part.index = i;
part.number = part.index = i;
if (hook (disk, &part))
return grub_errno;
@ -130,53 +126,6 @@ acorn_partition_map_iterate (grub_disk_t disk,
return GRUB_ERR_NONE;
}
static grub_partition_t
acorn_partition_map_probe (grub_disk_t disk, const char *str)
{
struct linux_part map[LINUX_MAP_ENTRIES];
struct grub_disk raw = *disk;
unsigned long partnum = grub_strtoul (str, 0, 10) - 1;
grub_disk_addr_t sector;
grub_err_t err;
grub_partition_t p;
/* Enforce raw disk access. */
raw.partition = 0;
/* Get the partition number. */
if (partnum > LINUX_MAP_ENTRIES)
goto fail;
err = acorn_partition_map_find (&raw, map, &sector);
if (err)
return 0;
if (map[partnum].magic != LINUX_NATIVE_MAGIC
&& map[partnum].magic != LINUX_SWAP_MAGIC)
goto fail;
p = grub_malloc (sizeof (struct grub_partition));
if (! p)
return 0;
p->start = sector + map[partnum].start;
p->len = map[partnum].size;
p->offset = 6;
p->index = partnum;
return p;
fail:
grub_error (GRUB_ERR_BAD_FILENAME, "invalid partition");
return 0;
}
static char *
acorn_partition_map_get_name (const grub_partition_t p)
{
return grub_xasprintf ("%d", p->index + 1);
}
/* Partition map type. */
@ -184,8 +133,6 @@ static struct grub_partition_map grub_acorn_partition_map =
{
.name = "part_acorn",
.iterate = acorn_partition_map_iterate,
.probe = acorn_partition_map_probe,
.get_name = acorn_partition_map_get_name
};
GRUB_MOD_INIT(acorn_partition_map)

67
partmap/amiga.c
View File

@ -76,20 +76,15 @@ amiga_partition_map_iterate (grub_disk_t disk,
{
struct grub_partition part;
struct grub_amiga_rdsk rdsk;
struct grub_disk raw;
int partno = 0;
int next = -1;
unsigned pos;
/* Enforce raw disk access. */
raw = *disk;
raw.partition = 0;
/* The RDSK block is one of the first 15 blocks. */
for (pos = 0; pos < 15; pos++)
{
/* Read the RDSK block which is a descriptor for the entire disk. */
if (grub_disk_read (&raw, pos, 0, sizeof (rdsk), &rdsk))
if (grub_disk_read (disk, pos, 0, sizeof (rdsk), &rdsk))
return grub_errno;
if (grub_strcmp ((char *) rdsk.magic, "RDSK") == 0)
@ -104,13 +99,15 @@ amiga_partition_map_iterate (grub_disk_t disk,
return grub_error (GRUB_ERR_BAD_PART_TABLE,
"Amiga partition map not found");
part.data = 0;
/* The end of the partition list is marked using "-1". */
while (next != -1)
{
struct grub_amiga_partition apart;
/* Read the RDSK block which is a descriptor for the entire disk. */
if (grub_disk_read (&raw, next, 0, sizeof (apart), &apart))
if (grub_disk_read (disk, next, 0, sizeof (apart), &apart))
return grub_errno;
/* Calculate the first block and the size of the partition. */
@ -123,7 +120,8 @@ amiga_partition_map_iterate (grub_disk_t disk,
* grub_be_to_cpu32 (apart.block_per_track));
part.offset = (grub_off_t) next * 512;
part.index = partno;
part.number = partno;
part.index = 0;
part.partmap = &grub_amiga_partition_map;
if (hook (disk, &part))
@ -136,65 +134,12 @@ amiga_partition_map_iterate (grub_disk_t disk,
return 0;
}
static grub_partition_t
amiga_partition_map_probe (grub_disk_t disk, const char *str)
{
grub_partition_t p = 0;
int partnum = 0;
char *s = (char *) str;
auto int find_func (grub_disk_t d, const grub_partition_t partition);
int find_func (grub_disk_t d __attribute__ ((unused)),
const grub_partition_t partition)
{
if (partnum == partition->index)
{
p = (grub_partition_t) grub_malloc (sizeof (*p));
if (! p)
return 1;
grub_memcpy (p, partition, sizeof (*p));
return 1;
}
return 0;
}
/* Get the partition number. */
partnum = grub_strtoul (s, 0, 10) - 1;
if (grub_errno)
{
grub_error (GRUB_ERR_BAD_FILENAME, "invalid partition");
return 0;
}
if (amiga_partition_map_iterate (disk, find_func))
goto fail;
return p;
fail:
grub_free (p);
return 0;
}
static char *
amiga_partition_map_get_name (const grub_partition_t p)
{
return grub_xasprintf ("%d", p->index + 1);
}
/* Partition map type. */
static struct grub_partition_map grub_amiga_partition_map =
{
.name = "part_amiga",
.iterate = amiga_partition_map_iterate,
.probe = amiga_partition_map_probe,
.get_name = amiga_partition_map_get_name
};
GRUB_MOD_INIT(amiga_partition_map)

72
partmap/apple.c
View File

@ -105,17 +105,12 @@ apple_partition_map_iterate (grub_disk_t disk,
struct grub_partition part;
struct grub_apple_header aheader;
struct grub_apple_part apart;
struct grub_disk raw;
int partno = 0, partnum = 0;
unsigned pos;
/* Enforce raw disk access. */
raw = *disk;
raw.partition = 0;
part.partmap = &grub_apple_partition_map;
if (grub_disk_read (&raw, 0, 0, sizeof (aheader), &aheader))
if (grub_disk_read (disk, 0, 0, sizeof (aheader), &aheader))
return grub_errno;
if (grub_be_to_cpu16 (aheader.magic) != GRUB_APPLE_HEADER_MAGIC)
@ -127,14 +122,17 @@ apple_partition_map_iterate (grub_disk_t disk,
goto fail;
}
part.data = 0;
pos = grub_be_to_cpu16 (aheader.blocksize);
do
{
if (grub_disk_read (&raw, pos / GRUB_DISK_SECTOR_SIZE,
pos % GRUB_DISK_SECTOR_SIZE,
sizeof (struct grub_apple_part), &apart))
return grub_errno;
part.offset = pos / GRUB_DISK_SECTOR_SIZE;
part.index = pos % GRUB_DISK_SECTOR_SIZE;
if (grub_disk_read (disk, part.offset, part.index,
sizeof (struct grub_apple_part), &apart))
return grub_errno;
if (grub_be_to_cpu16 (apart.magic) != GRUB_APPLE_PART_MAGIC)
{
@ -156,6 +154,7 @@ apple_partition_map_iterate (grub_disk_t disk,
/ GRUB_DISK_SECTOR_SIZE;
part.offset = pos;
part.index = partno;
part.number = partno;
grub_dprintf ("partition",
"partition %d: name %s, type %s, start 0x%x, len 0x%x\n",
@ -179,65 +178,12 @@ apple_partition_map_iterate (grub_disk_t disk,
"Apple partition map not found");
}
static grub_partition_t
apple_partition_map_probe (grub_disk_t disk, const char *str)
{
grub_partition_t p = 0;
int partnum = 0;
char *s = (char *) str;
auto int find_func (grub_disk_t d, const grub_partition_t partition);
int find_func (grub_disk_t d __attribute__ ((unused)),
const grub_partition_t partition)
{
if (partnum == partition->index)
{
p = (grub_partition_t) grub_malloc (sizeof (*p));
if (! p)
return 1;
grub_memcpy (p, partition, sizeof (*p));
return 1;
}
return 0;
}
/* Get the partition number. */
partnum = grub_strtoul (s, 0, 10) - 1;
if (grub_errno)
{
grub_error (GRUB_ERR_BAD_FILENAME, "invalid partition");
return 0;
}
if (apple_partition_map_iterate (disk, find_func))
goto fail;
return p;
fail:
grub_free (p);
return 0;
}
static char *
apple_partition_map_get_name (const grub_partition_t p)
{
return grub_xasprintf ("%d", p->index + 1);
}
/* Partition map type. */
static struct grub_partition_map grub_apple_partition_map =
{
.name = "part_apple",
.iterate = apple_partition_map_iterate,
.probe = apple_partition_map_probe,
.get_name = apple_partition_map_get_name
};
GRUB_MOD_INIT(apple_partition_map)

97
partmap/bsdlabel.c Normal file
View File

@ -0,0 +1,97 @@
/* bsdlabel.c - Read BSD style partition tables. */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2002,2004,2005,2006,2007,2008,2009 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/partition.h>
#include <grub/bsdlabel.h>
#include <grub/disk.h>
#include <grub/mm.h>
#include <grub/misc.h>
#include <grub/dl.h>
static struct grub_partition_map grub_bsdlabel_partition_map;
static grub_err_t
bsdlabel_partition_map_iterate (grub_disk_t disk,
int (*hook) (grub_disk_t disk,
const grub_partition_t partition))
{
struct grub_partition_bsd_disk_label label;
struct grub_partition p;
grub_disk_addr_t delta = 0;
unsigned pos;
/* BSDLabel offsets are absolute even when it's embed inside partition. */
delta = grub_partition_get_start (disk->partition);
/* Read the BSD label. */
if (grub_disk_read (disk, GRUB_PC_PARTITION_BSD_LABEL_SECTOR,
0, sizeof (label), &label))
return grub_errno;
/* Check if it is valid. */
if (label.magic != grub_cpu_to_le32 (GRUB_PC_PARTITION_BSD_LABEL_MAGIC))
return grub_error (GRUB_ERR_BAD_PART_TABLE, "no signature");
pos = sizeof (label) + GRUB_PC_PARTITION_BSD_LABEL_SECTOR
* GRUB_DISK_SECTOR_SIZE;
for (p.number = 0;
p.number < grub_cpu_to_le16 (label.num_partitions);
p.number++)
{
struct grub_partition_bsd_entry be;
p.offset = pos / GRUB_DISK_SECTOR_SIZE;
p.index = pos % GRUB_DISK_SECTOR_SIZE;
if (grub_disk_read (disk, p.offset, p.index, sizeof (be), &be))
return grub_errno;
p.start = grub_le_to_cpu32 (be.offset) - delta;
p.len = grub_le_to_cpu32 (be.size);
p.partmap = &grub_bsdlabel_partition_map;
if (be.fs_type != GRUB_PC_PARTITION_BSD_TYPE_UNUSED)
if (hook (disk, &p))
return grub_errno;
pos += sizeof (struct grub_partition_bsd_entry);
}
return GRUB_ERR_NONE;
}
/* Partition map type. */
static struct grub_partition_map grub_bsdlabel_partition_map =
{
.name = "part_bsd",
.iterate = bsdlabel_partition_map_iterate,
};
GRUB_MOD_INIT(bsd_partition_map)
{
grub_partition_map_register (&grub_bsdlabel_partition_map);
}
GRUB_MOD_FINI(bsd_partition_map)
{
grub_partition_map_unregister (&grub_bsdlabel_partition_map);
}

80
partmap/gpt.c
View File

@ -44,18 +44,13 @@ gpt_partition_map_iterate (grub_disk_t disk,
struct grub_partition part;
struct grub_gpt_header gpt;
struct grub_gpt_partentry entry;
struct grub_disk raw;
struct grub_msdos_partition_mbr mbr;
grub_uint64_t entries;
unsigned int i;
int last_offset = 0;
/* Enforce raw disk access. */
raw = *disk;
raw.partition = 0;
/* Read the protective MBR. */
if (grub_disk_read (&raw, 0, 0, sizeof (mbr), &mbr))
if (grub_disk_read (disk, 0, 0, sizeof (mbr), &mbr))
return grub_errno;
/* Check if it is valid. */
@ -67,7 +62,7 @@ gpt_partition_map_iterate (grub_disk_t disk,
return grub_error (GRUB_ERR_BAD_PART_TABLE, "no GPT partition map found");
/* Read the GPT header. */
if (grub_disk_read (&raw, 1, 0, sizeof (gpt), &gpt))
if (grub_disk_read (disk, 1, 0, sizeof (gpt), &gpt))
return grub_errno;
if (grub_memcmp (gpt.magic, grub_gpt_magic, sizeof (grub_gpt_magic)))
@ -76,11 +71,15 @@ gpt_partition_map_iterate (grub_disk_t disk,
grub_dprintf ("gpt", "Read a valid GPT header\n");
entries = grub_le_to_cpu64 (gpt.partitions);
part.data = grub_malloc (sizeof (entry));
for (i = 0; i < grub_le_to_cpu32 (gpt.maxpart); i++)
{
if (grub_disk_read (&raw, entries, last_offset,
if (grub_disk_read (disk, entries, last_offset,
sizeof (entry), &entry))
return grub_errno;
{
grub_free (part.data);
return grub_errno;
}
if (grub_memcmp (&grub_gpt_partition_type_empty, &entry.type,
sizeof (grub_gpt_partition_type_empty)))
@ -90,16 +89,17 @@ gpt_partition_map_iterate (grub_disk_t disk,
part.len = (grub_le_to_cpu64 (entry.end)
- grub_le_to_cpu64 (entry.start) + 1);
part.offset = entries;
part.index = i;
part.number = i;
part.index = last_offset;
part.partmap = &grub_gpt_partition_map;
part.data = &entry;
grub_memcpy (part.data, &entry, sizeof (entry));
grub_dprintf ("gpt", "GPT entry %d: start=%lld, length=%lld\n", i,
(unsigned long long) part.start,
(unsigned long long) part.len);
if (hook (disk, &part))
return 1;
return grub_errno;
}
last_offset += grub_le_to_cpu32 (gpt.partentry_size);
@ -110,59 +110,9 @@ gpt_partition_map_iterate (grub_disk_t disk,
}
}
return 0;
}
grub_free (part.data);
static grub_partition_t
gpt_partition_map_probe (grub_disk_t disk, const char *str)
{
grub_partition_t p = 0;
int partnum = 0;
char *s = (char *) str;
auto int find_func (grub_disk_t d, const grub_partition_t partition);
int find_func (grub_disk_t d __attribute__ ((unused)),
const grub_partition_t partition)
{
if (partnum == partition->index)
{
p = (grub_partition_t) grub_malloc (sizeof (*p));
if (! p)
return 1;
grub_memcpy (p, partition, sizeof (*p));
return 1;
}
return 0;
}
/* Get the partition number. */
partnum = grub_strtoul (s, 0, 10) - 1;
if (grub_errno)
{
grub_error (GRUB_ERR_BAD_FILENAME, "invalid partition");
return 0;
}
gpt_partition_map_iterate (disk, find_func);
if (grub_errno)
goto fail;
return p;
fail:
grub_free (p);
return 0;
}
static char *
gpt_partition_map_get_name (const grub_partition_t p)
{
return grub_xasprintf ("%d", p->index + 1);
return GRUB_ERR_NONE;
}
@ -171,8 +121,6 @@ static struct grub_partition_map grub_gpt_partition_map =
{
.name = "part_gpt",
.iterate = gpt_partition_map_iterate,
.probe = gpt_partition_map_probe,
.get_name = gpt_partition_map_get_name
};
GRUB_MOD_INIT(gpt_partition_map)

205
partmap/msdos.c
View File

@ -27,87 +27,21 @@
static struct grub_partition_map grub_msdos_partition_map;
/* Parse the partition representation in STR and return a partition. */
static grub_partition_t
grub_partition_parse (const char *str)
{
grub_partition_t p;
struct grub_msdos_partition *pcdata;
char *s = (char *) str;
p = (grub_partition_t) grub_malloc (sizeof (*p));
if (! p)
return 0;
pcdata = (struct grub_msdos_partition *) grub_malloc (sizeof (*pcdata));
if (! pcdata)
goto fail;
p->data = pcdata;
p->partmap = &grub_msdos_partition_map;
/* Initialize some of the fields with invalid values. */
pcdata->bsd_part = pcdata->dos_type = pcdata->bsd_type = p->index = -1;
/* Get the DOS partition number. The number is counted from one for
the user interface, and from zero internally. */
pcdata->dos_part = grub_strtoul (s, &s, 0) - 1;
if (grub_errno)
{
/* Not found. Maybe only a BSD label is specified. */
pcdata->dos_part = -1;
grub_errno = GRUB_ERR_NONE;
}
else if (*s == ',')
s++;
if (*s)
{
if (*s >= 'a' && *s <= 'h')
{
pcdata->bsd_part = *s - 'a';
s++;
}
if (*s)
goto fail;
}
if (pcdata->dos_part == -1 && pcdata->bsd_part == -1)
goto fail;
return p;
fail:
grub_free (p);
grub_free (pcdata);
grub_error (GRUB_ERR_BAD_FILENAME, "invalid partition");
return 0;
}
static grub_err_t
pc_partition_map_iterate (grub_disk_t disk,
int (*hook) (grub_disk_t disk,
const grub_partition_t partition))
{
struct grub_partition p;
struct grub_msdos_partition pcdata;
struct grub_msdos_partition_mbr mbr;
struct grub_msdos_partition_disk_label label;
struct grub_disk raw;
int labeln = 0;
grub_disk_addr_t lastaddr;
/* Enforce raw disk access. */
raw = *disk;
raw.partition = 0;
grub_disk_addr_t ext_offset;
p.offset = 0;
pcdata.ext_offset = 0;
pcdata.dos_part = -1;
p.data = &pcdata;
ext_offset = 0;
p.data = 0;
p.number = -1;
p.partmap = &grub_msdos_partition_map;
/* Any value different than `p.offset' will satisfy the check during
@ -120,7 +54,7 @@ pc_partition_map_iterate (grub_disk_t disk,
struct grub_msdos_partition_entry *e;
/* Read the MBR. */
if (grub_disk_read (&raw, p.offset, 0, sizeof (mbr), &mbr))
if (grub_disk_read (disk, p.offset, 0, sizeof (mbr), &mbr))
goto finish;
/* This is our loop-detection algorithm. It works the following way:
@ -150,13 +84,10 @@ pc_partition_map_iterate (grub_disk_t disk,
p.start = p.offset + grub_le_to_cpu32 (e->start);
p.len = grub_le_to_cpu32 (e->length);
pcdata.bsd_part = -1;
pcdata.dos_type = e->type;
pcdata.bsd_type = -1;
grub_dprintf ("partition",
"partition %d: flag 0x%x, type 0x%x, start 0x%llx, len 0x%llx\n",
p.index, e->flag, pcdata.dos_type,
p.index, e->flag, e->type,
(unsigned long long) p.start,
(unsigned long long) p.len);
@ -168,59 +99,15 @@ pc_partition_map_iterate (grub_disk_t disk,
if (! grub_msdos_partition_is_empty (e->type)
&& ! grub_msdos_partition_is_extended (e->type))
{
pcdata.dos_part++;
p.number++;
if (hook (disk, &p))
return 1;
/* Check if this is a BSD partition. */
if (grub_msdos_partition_is_bsd (e->type))
{
/* Check if the BSD label is within the DOS partition. */
if (p.len <= GRUB_PC_PARTITION_BSD_LABEL_SECTOR)
{
grub_dprintf ("partition", "no space for disk label\n");
continue;
}
/* Read the BSD label. */
if (grub_disk_read (&raw,
(p.start
+ GRUB_PC_PARTITION_BSD_LABEL_SECTOR),
0,
sizeof (label),
&label))
goto finish;
/* Check if it is valid. */
if (label.magic
!= grub_cpu_to_le32 (GRUB_PC_PARTITION_BSD_LABEL_MAGIC))
{
grub_dprintf ("partition",
"invalid disk label magic 0x%x on partition %d\n",
label.magic, p.index);
continue;
}
for (pcdata.bsd_part = 0;
pcdata.bsd_part < grub_cpu_to_le16 (label.num_partitions);
pcdata.bsd_part++)
{
struct grub_msdos_partition_bsd_entry *be
= label.entries + pcdata.bsd_part;
p.start = grub_le_to_cpu32 (be->offset);
p.len = grub_le_to_cpu32 (be->size);
pcdata.bsd_type = be->fs_type;
if (be->fs_type != GRUB_PC_PARTITION_BSD_TYPE_UNUSED)
if (hook (disk, &p))
return 1;
}
}
return grub_errno;
}
else if (pcdata.dos_part < 4)
else if (p.number < 4)
/* If this partition is a logical one, shouldn't increase the
partition number. */
pcdata.dos_part++;
p.number++;
}
/* Find an extended partition. */
@ -230,9 +117,9 @@ pc_partition_map_iterate (grub_disk_t disk,
if (grub_msdos_partition_is_extended (e->type))
{
p.offset = pcdata.ext_offset + grub_le_to_cpu32 (e->start);
if (! pcdata.ext_offset)
pcdata.ext_offset = p.offset;
p.offset = ext_offset + grub_le_to_cpu32 (e->start);
if (! ext_offset)
ext_offset = p.offset;
break;
}
@ -247,78 +134,12 @@ pc_partition_map_iterate (grub_disk_t disk,
return grub_errno;
}
static grub_partition_t
pc_partition_map_probe (grub_disk_t disk, const char *str)
{
grub_partition_t p;
struct grub_msdos_partition *pcdata;
auto int find_func (grub_disk_t d, const grub_partition_t partition);
int find_func (grub_disk_t d __attribute__ ((unused)),
const grub_partition_t partition)
{
struct grub_msdos_partition *partdata = partition->data;
if ((pcdata->dos_part == partdata->dos_part || pcdata->dos_part == -1)
&& pcdata->bsd_part == partdata->bsd_part)
{
grub_memcpy (p, partition, sizeof (*p));
p->data = pcdata;
grub_memcpy (pcdata, partdata, sizeof (*pcdata));
return 1;
}
return 0;
}
p = grub_partition_parse (str);
if (! p)
return 0;
pcdata = p->data;
pc_partition_map_iterate (disk, find_func);
if (grub_errno)
goto fail;
if (p->index < 0)
{
grub_error (GRUB_ERR_BAD_DEVICE, "no such partition");
goto fail;
}
return p;
fail:
grub_free (p);
grub_free (pcdata);
return 0;
}
static char *
pc_partition_map_get_name (const grub_partition_t p)
{
struct grub_msdos_partition *pcdata = p->data;
if (pcdata->bsd_part < 0)
return grub_xasprintf ("%d", pcdata->dos_part + 1);
else if (pcdata->dos_part < 0)
return grub_xasprintf ("%c", pcdata->bsd_part + 'a');
else
return grub_xasprintf ("%d,%c", pcdata->dos_part + 1,
pcdata->bsd_part + 'a');
}
/* Partition map type. */
static struct grub_partition_map grub_msdos_partition_map =
{
.name = "part_msdos",
.iterate = pc_partition_map_iterate,
.probe = pc_partition_map_probe,
.get_name = pc_partition_map_get_name
};
GRUB_MOD_INIT(pc_partition_map)

59
partmap/sun.c
View File

@ -88,19 +88,15 @@ sun_partition_map_iterate (grub_disk_t disk,
const grub_partition_t partition))
{
grub_partition_t p;
struct grub_disk raw;
struct grub_sun_block block;
int partnum;
raw = *disk;
raw.partition = 0;
p = (grub_partition_t) grub_zalloc (sizeof (struct grub_partition));
if (! p)
return grub_errno;
p->partmap = &grub_sun_partition_map;
if (grub_disk_read (&raw, 0, 0, sizeof (struct grub_sun_block),
if (grub_disk_read (disk, 0, 0, sizeof (struct grub_sun_block),
&block) == GRUB_ERR_NONE)
{
if (GRUB_PARTMAP_SUN_MAGIC != grub_be_to_cpu16 (block.magic))
@ -124,7 +120,7 @@ sun_partition_map_iterate (grub_disk_t disk,
* grub_be_to_cpu16 (block.ntrks)
* grub_be_to_cpu16 (block.nsect));
p->len = grub_be_to_cpu32 (desc->num_sectors);
p->index = partnum;
p->number = p->index = partnum;
if (p->len)
{
if (hook (disk, p))
@ -138,62 +134,11 @@ sun_partition_map_iterate (grub_disk_t disk,
return grub_errno;
}
static grub_partition_t
sun_partition_map_probe (grub_disk_t disk, const char *str)
{
grub_partition_t p = 0;
int partnum = 0;
char *s = (char *) str;
auto int find_func (grub_disk_t d, const grub_partition_t partition);
int find_func (grub_disk_t d __attribute__ ((unused)),
const grub_partition_t partition)
{
if (partnum == partition->index)
{
p = (grub_partition_t) grub_malloc (sizeof (*p));
if (p)
grub_memcpy (p, partition, sizeof (*p));
return 1;
}
return 0;
}
grub_errno = GRUB_ERR_NONE;
partnum = grub_strtoul (s, 0, 10) - 1;
if (grub_errno == GRUB_ERR_NONE)
{
if (sun_partition_map_iterate (disk, find_func))
{
grub_free (p);
p = 0;
}
}
else
{
grub_error (GRUB_ERR_BAD_FILENAME, "invalid partition");
p = 0;
}
return p;
}
static char *
sun_partition_map_get_name (const grub_partition_t p)
{
return grub_xasprintf ("%d", p->index + 1);
}
/* Partition map type. */
static struct grub_partition_map grub_sun_partition_map =
{
.name = "part_sun",
.iterate = sun_partition_map_iterate,
.probe = sun_partition_map_probe,
.get_name = sun_partition_map_get_name
};
GRUB_MOD_INIT(sun_partition_map)

4
parttool/msdospart.c
View File

@ -49,7 +49,7 @@ static grub_err_t grub_pcpart_boot (const grub_device_t dev,
index = dev->disk->partition->index;
part = dev->disk->partition;
dev->disk->partition = 0;
dev->disk->partition = part->parent;
/* Read the MBR. */
if (grub_disk_read (dev->disk, 0, 0, sizeof (mbr), &mbr))
@ -96,7 +96,7 @@ static grub_err_t grub_pcpart_type (const grub_device_t dev,
index = dev->disk->partition->index;
part = dev->disk->partition;
dev->disk->partition = 0;
dev->disk->partition = part->parent;
/* Read the parttable. */
if (grub_disk_read (dev->disk, part->offset, 0,

5
util/grub-probe.c
View File

@ -82,13 +82,16 @@ grub_refresh (void)
static void
probe_partmap (grub_disk_t disk)
{
grub_partition_t part;
if (disk->partition == NULL)
{
grub_util_info ("no partition map found for %s", disk->name);
return;
}
printf ("%s\n", disk->partition->partmap->name);
for (part = disk->partition; part; part = part->parent)
printf ("%s\n", part->partmap->name);
}
static int

41
util/hostdisk.c
View File

@ -334,10 +334,13 @@ open_device (const grub_disk_t disk, grub_disk_addr_t sector, int flags)
{
int is_partition = 0;
char dev[PATH_MAX];
grub_disk_addr_t part_start = 0;
part_start = grub_partition_get_start (disk->partition);
strcpy (dev, map[disk->id].device);
if (disk->partition && strncmp (map[disk->id].device, "/dev/", 5) == 0)
is_partition = linux_find_partition (dev, disk->partition->start);
is_partition = linux_find_partition (dev, part_start);
/* Open the partition. */
grub_dprintf ("hostdisk", "opening the device `%s' in open_device()\n", dev);
@ -353,7 +356,7 @@ open_device (const grub_disk_t disk, grub_disk_addr_t sector, int flags)
ioctl (fd, BLKFLSBUF, 0);
if (is_partition)
sector -= disk->partition->start;
sector -= part_start;
}
#else /* ! __linux__ */
#if defined (__FreeBSD__) || defined(__FreeBSD_kernel__)
@ -952,39 +955,25 @@ grub_util_biosdisk_get_grub_dev (const char *os_dev)
int find_partition (grub_disk_t disk __attribute__ ((unused)),
const grub_partition_t partition)
{
struct grub_msdos_partition *pcdata = NULL;
grub_disk_addr_t part_start = 0;
grub_util_info ("Partition %d starts from %lu",
partition->number, partition->start);
if (strcmp (partition->partmap->name, "part_msdos") == 0)
pcdata = partition->data;
part_start = grub_partition_get_start (partition);
if (pcdata)
if (hdg.start == part_start)
{
if (pcdata->bsd_part < 0)
grub_util_info ("DOS partition %d starts from %lu",
pcdata->dos_part, partition->start);
else
grub_util_info ("BSD partition %d,%c starts from %lu",
pcdata->dos_part, pcdata->bsd_part + 'a',
partition->start);
}
else
{
grub_util_info ("Partition %d starts from %lu",
partition->index, partition->start);
}
if (hdg.start == partition->start)
{
if (pcdata)
if (partition->parent)
{
dos_part = pcdata->dos_part;
bsd_part = pcdata->bsd_part;
dos_part = partition->parent->number;
bsd_part = partition->number;
}
else
{
dos_part = partition->index;
dos_part = partition->number;
bsd_part = -1;
}
return 1;
}

36
util/i386/pc/grub-setup.c
View File

@ -116,15 +116,10 @@ setup (const char *dir,
int NESTED_FUNC_ATTR find_usable_region_msdos (grub_disk_t disk __attribute__ ((unused)),
const grub_partition_t p)
{
struct grub_msdos_partition *pcdata = p->data;
/* There's always an embed region, and it starts right after the MBR. */
embed_region.start = 1;
/* For its end offset, include as many dummy partitions as we can. */
if (! grub_msdos_partition_is_empty (pcdata->dos_type)
&& ! grub_msdos_partition_is_bsd (pcdata->dos_type)
&& embed_region.end > p->start)
if (embed_region.end > p->start)
embed_region.end = p->start;
return 0;
@ -289,22 +284,19 @@ setup (const char *dir,
/* Embed information about the installed location. */
if (root_dev->disk->partition)
{
if (strcmp (root_dev->disk->partition->partmap->name,
"part_msdos") == 0)
{
struct grub_msdos_partition *pcdata =
root_dev->disk->partition->data;
dos_part = pcdata->dos_part;
bsd_part = pcdata->bsd_part;
}
else if (strcmp (root_dev->disk->partition->partmap->name,
"part_gpt") == 0)
{
dos_part = root_dev->disk->partition->index;
bsd_part = -1;
}
if (root_dev->disk->partition->parent)
{
if (root_dev->disk->partition->parent->parent)
grub_util_error ("Installing on doubly nested partitions is "
"not supported");
dos_part = root_dev->disk->partition->parent->number;
bsd_part = root_dev->disk->partition->number;
}
else
grub_util_error (_("no DOS-style partitions found"));
{
dos_part = root_dev->disk->partition->number;
bsd_part = -1;
}
}
else
dos_part = bsd_part = -1;
@ -337,6 +329,8 @@ setup (const char *dir,
int NESTED_FUNC_ATTR identify_partmap (grub_disk_t disk __attribute__ ((unused)),
const grub_partition_t p)
{
if (p->parent)
return 0;
dest_partmap = p->partmap->name;
return 1;
}