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automake commit without merge history

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This commit is contained in:
BVK Chaitanya 2010-05-06 11:34:04 +05:30
parent 265d68cd10
commit 8c41176882
810 changed files with 4980 additions and 2508 deletions
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145
grub-core/partmap/acorn.c Normal file
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/* acorn.c - Read Linux/ADFS partition tables. */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2005,2007 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/>.
*/
#include <grub/disk.h>
#include <grub/misc.h>
#include <grub/mm.h>
#include <grub/partition.h>
#include <grub/acorn_filecore.h>
#define LINUX_NATIVE_MAGIC grub_cpu_to_le32 (0xdeafa1de)
#define LINUX_SWAP_MAGIC grub_cpu_to_le32 (0xdeafab1e)
#define LINUX_MAP_ENTRIES (512 / 12)
#define NONADFS_PARTITION_TYPE_LINUX 9
#define NONADFS_PARTITION_TYPE_MASK 15
struct grub_acorn_boot_block
{
grub_uint8_t misc[0x1C0];
struct grub_filecore_disc_record disc_record;
grub_uint8_t flags;
grub_uint16_t start_cylinder;
grub_uint8_t checksum;
} __attribute__ ((packed, aligned));
struct linux_part
{
grub_uint32_t magic;
grub_uint32_t start;
grub_uint32_t size;
};
static struct grub_partition_map grub_acorn_partition_map;
static grub_err_t
acorn_partition_map_find (grub_disk_t disk, struct linux_part *m,
grub_disk_addr_t *sector)
{
struct grub_acorn_boot_block boot;
grub_err_t err;
unsigned int checksum = 0;
unsigned int heads;
unsigned int sectors_per_cylinder;
int i;
err = grub_disk_read (disk, 0xC00 / GRUB_DISK_SECTOR_SIZE, 0,
sizeof (struct grub_acorn_boot_block),
&boot);
if (err)
return err;
if ((boot.flags & NONADFS_PARTITION_TYPE_MASK) != NONADFS_PARTITION_TYPE_LINUX)
goto fail;
for (i = 0; i != 0x1ff; ++i)
checksum = (checksum & 0xff) + (checksum >> 8) + boot.misc[i];
if ((grub_uint8_t) checksum != boot.checksum)
goto fail;
heads = (boot.disc_record.heads
+ ((boot.disc_record.lowsector >> 6) & 1));
sectors_per_cylinder = boot.disc_record.secspertrack * heads;
*sector = grub_le_to_cpu16 (boot.start_cylinder) * sectors_per_cylinder;
return grub_disk_read (disk, *sector, 0,
sizeof (struct linux_part) * LINUX_MAP_ENTRIES,
m);
fail:
return grub_error (GRUB_ERR_BAD_PART_TABLE,
"Linux/ADFS partition map not found");
}
static grub_err_t
acorn_partition_map_iterate (grub_disk_t disk,
int (*hook) (grub_disk_t disk,
const grub_partition_t partition))
{
struct grub_partition part;
struct linux_part map[LINUX_MAP_ENTRIES];
int i;
grub_disk_addr_t sector = 0;
grub_err_t err;
err = acorn_partition_map_find (disk, map, &sector);
if (err)
return err;
part.partmap = &grub_acorn_partition_map;
for (i = 0; i != LINUX_MAP_ENTRIES; ++i)
{
if (map[i].magic != LINUX_NATIVE_MAGIC
&& map[i].magic != LINUX_SWAP_MAGIC)
return GRUB_ERR_NONE;
part.start = sector + map[i].start;
part.len = map[i].size;
part.offset = 6;
part.number = part.index = i;
if (hook (disk, &part))
return grub_errno;
}
return GRUB_ERR_NONE;
}
/* Partition map type. */
static struct grub_partition_map grub_acorn_partition_map =
{
.name = "acorn",
.iterate = acorn_partition_map_iterate,
};
GRUB_MOD_INIT(part_acorn)
{
grub_partition_map_register (&grub_acorn_partition_map);
}
GRUB_MOD_FINI(part_acorn)
{
grub_partition_map_unregister (&grub_acorn_partition_map);
}

151
grub-core/partmap/amiga.c Normal file
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/* amiga.c - Read amiga partition tables (RDB). */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2002,2004,2005,2006,2007 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/>.
*/
#include <grub/disk.h>
#include <grub/misc.h>
#include <grub/mm.h>
#include <grub/partition.h>
#include <grub/dl.h>
struct grub_amiga_rdsk
{
/* "RDSK". */
grub_uint8_t magic[4];
grub_uint32_t size;
grub_int32_t checksum;
grub_uint32_t scsihost;
grub_uint32_t blksz;
grub_uint32_t flags;
grub_uint32_t badblcklst;
grub_uint32_t partitionlst;
grub_uint32_t fslst;
/* The other information is not important for us. */
} __attribute__ ((packed));
struct grub_amiga_partition
{
/* "PART". */
grub_uint8_t magic[4];
grub_int32_t size;
grub_int32_t checksum;
grub_uint32_t scsihost;
grub_uint32_t next;
grub_uint32_t flags;
grub_uint32_t unused1[2];
grub_uint32_t devflags;
grub_uint8_t namelen;
grub_uint8_t name[31];
grub_uint32_t unused2[15];
grub_uint32_t unused3[3];
grub_uint32_t heads;
grub_uint32_t unused4;
grub_uint32_t block_per_track;
grub_uint32_t unused5[3];
grub_uint32_t lowcyl;
grub_uint32_t highcyl;
grub_uint32_t firstcyl;
} __attribute__ ((packed));
static struct grub_partition_map grub_amiga_partition_map;
static grub_err_t
amiga_partition_map_iterate (grub_disk_t disk,
int (*hook) (grub_disk_t disk,
const grub_partition_t partition))
{
struct grub_partition part;
struct grub_amiga_rdsk rdsk;
int partno = 0;
int next = -1;
unsigned pos;
/* 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 (disk, pos, 0, sizeof (rdsk), &rdsk))
return grub_errno;
if (grub_strcmp ((char *) rdsk.magic, "RDSK") == 0)
{
/* Found the first PART block. */
next = grub_be_to_cpu32 (rdsk.partitionlst);
break;
}
}
if (next == -1)
return grub_error (GRUB_ERR_BAD_PART_TABLE,
"Amiga partition map not found");
/* 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 (disk, next, 0, sizeof (apart), &apart))
return grub_errno;
/* Calculate the first block and the size of the partition. */
part.start = (grub_be_to_cpu32 (apart.lowcyl)
* grub_be_to_cpu32 (apart.heads)
* grub_be_to_cpu32 (apart.block_per_track));
part.len = ((grub_be_to_cpu32 (apart.highcyl)
- grub_be_to_cpu32 (apart.lowcyl) + 1)
* grub_be_to_cpu32 (apart.heads)
* grub_be_to_cpu32 (apart.block_per_track));
part.offset = (grub_off_t) next * 512;
part.number = partno;
part.index = 0;
part.partmap = &grub_amiga_partition_map;
if (hook (disk, &part))
return grub_errno;
next = grub_be_to_cpu32 (apart.next);
partno++;
}
return 0;
}
/* Partition map type. */
static struct grub_partition_map grub_amiga_partition_map =
{
.name = "amiga",
.iterate = amiga_partition_map_iterate,
};
GRUB_MOD_INIT(part_amiga)
{
grub_partition_map_register (&grub_amiga_partition_map);
}
GRUB_MOD_FINI(part_amiga)
{
grub_partition_map_unregister (&grub_amiga_partition_map);
}

197
grub-core/partmap/apple.c Normal file
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/* apple.c - Read macintosh 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/disk.h>
#include <grub/misc.h>
#include <grub/mm.h>
#include <grub/partition.h>
#define GRUB_APPLE_HEADER_MAGIC 0x4552
#define GRUB_APPLE_PART_MAGIC 0x504D
struct grub_apple_header
{
/* The magic number to identify the partition map, it should have
the value `0x4552'. */
grub_uint16_t magic;
grub_uint16_t blocksize;
};
struct grub_apple_part
{
/* The magic number to identify this as a partition, it should have
the value `0x504D'. */
grub_uint16_t magic;
/* Reserved. */
grub_uint16_t reserved;
/* The size of the partition map in blocks. */
grub_uint32_t partmap_size;
/* The first physical block of the partition. */
grub_uint32_t first_phys_block;
/* The amount of blocks. */
grub_uint32_t blockcnt;
/* The partition name. */
char partname[32];
/* The partition type. */
char parttype[32];
/* The first datablock of the partition. */
grub_uint32_t datablocks_first;
/* The amount datablocks. */
grub_uint32_t datablocks_count;
/* The status of the partition. (???) */
grub_uint32_t status;
/* The first block on which the bootcode can be found. */
grub_uint32_t bootcode_pos;
/* The size of the bootcode in bytes. */
grub_uint32_t bootcode_size;
/* The load address of the bootcode. */
grub_uint32_t bootcode_loadaddr;
/* Reserved. */
grub_uint32_t reserved2;
/* The entry point of the bootcode. */
grub_uint32_t bootcode_entrypoint;
/* Reserved. */
grub_uint32_t reserved3;
/* A checksum of the bootcode. */
grub_uint32_t bootcode_checksum;
/* The processor type. */
char processor[16];
/* Padding. */
grub_uint16_t pad[187];
};
static struct grub_partition_map grub_apple_partition_map;
static grub_err_t
apple_partition_map_iterate (grub_disk_t disk,
int (*hook) (grub_disk_t disk,
const grub_partition_t partition))
{
struct grub_partition part;
struct grub_apple_header aheader;
struct grub_apple_part apart;
int partno = 0, partnum = 0;
unsigned pos;
part.partmap = &grub_apple_partition_map;
if (grub_disk_read (disk, 0, 0, sizeof (aheader), &aheader))
return grub_errno;
if (grub_be_to_cpu16 (aheader.magic) != GRUB_APPLE_HEADER_MAGIC)
{
grub_dprintf ("partition",
"bad magic (found 0x%x; wanted 0x%x\n",
grub_be_to_cpu16 (aheader.magic),
GRUB_APPLE_HEADER_MAGIC);
goto fail;
}
pos = grub_be_to_cpu16 (aheader.blocksize);
do
{
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)
{
grub_dprintf ("partition",
"partition %d: bad magic (found 0x%x; wanted 0x%x\n",
partno, grub_be_to_cpu16 (apart.magic),
GRUB_APPLE_PART_MAGIC);
break;
}
if (partnum == 0)
partnum = grub_be_to_cpu32 (apart.partmap_size);
part.start = ((grub_disk_addr_t) grub_be_to_cpu32 (apart.first_phys_block)
* grub_be_to_cpu16 (aheader.blocksize))
/ GRUB_DISK_SECTOR_SIZE;
part.len = ((grub_disk_addr_t) grub_be_to_cpu32 (apart.blockcnt)
* grub_be_to_cpu16 (aheader.blocksize))
/ 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",
partno, apart.partname, apart.parttype,
grub_be_to_cpu32 (apart.first_phys_block),
grub_be_to_cpu32 (apart.blockcnt));
if (hook (disk, &part))
return grub_errno;
pos += grub_be_to_cpu16 (aheader.blocksize);
partno++;
}
while (partno < partnum);
if (partno != 0)
return 0;
fail:
return grub_error (GRUB_ERR_BAD_PART_TABLE,
"Apple partition map not found");
}
/* Partition map type. */
static struct grub_partition_map grub_apple_partition_map =
{
.name = "apple",
.iterate = apple_partition_map_iterate,
};
GRUB_MOD_INIT(part_apple)
{
grub_partition_map_register (&grub_apple_partition_map);
}
GRUB_MOD_FINI(part_apple)
{
grub_partition_map_unregister (&grub_apple_partition_map);
}

97
grub-core/partmap/bsdlabel.c Normal file
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/* 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 = "bsd",
.iterate = bsdlabel_partition_map_iterate,
};
GRUB_MOD_INIT(part_bsd)
{
grub_partition_map_register (&grub_bsdlabel_partition_map);
}
GRUB_MOD_FINI(part_bsd)
{
grub_partition_map_unregister (&grub_bsdlabel_partition_map);
}

127
grub-core/partmap/gpt.c Normal file
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/* gpt.c - Read GUID Partition Tables (GPT). */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2002,2005,2006,2007,2008 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/disk.h>
#include <grub/misc.h>
#include <grub/mm.h>
#include <grub/partition.h>
#include <grub/dl.h>
#include <grub/msdos_partition.h>
#include <grub/gpt_partition.h>
static grub_uint8_t grub_gpt_magic[8] =
{
0x45, 0x46, 0x49, 0x20, 0x50, 0x41, 0x52, 0x54
};
static const grub_gpt_part_type_t grub_gpt_partition_type_empty = GRUB_GPT_PARTITION_TYPE_EMPTY;
static struct grub_partition_map grub_gpt_partition_map;
static grub_err_t
gpt_partition_map_iterate (grub_disk_t disk,
int (*hook) (grub_disk_t disk,
const grub_partition_t partition))
{
struct grub_partition part;
struct grub_gpt_header gpt;
struct grub_gpt_partentry entry;
struct grub_msdos_partition_mbr mbr;
grub_uint64_t entries;
unsigned int i;
int last_offset = 0;
/* Read the protective MBR. */
if (grub_disk_read (disk, 0, 0, sizeof (mbr), &mbr))
return grub_errno;
/* Check if it is valid. */
if (mbr.signature != grub_cpu_to_le16 (GRUB_PC_PARTITION_SIGNATURE))
return grub_error (GRUB_ERR_BAD_PART_TABLE, "no signature");
/* Make sure the MBR is a protective MBR and not a normal MBR. */
if (mbr.entries[0].type != GRUB_PC_PARTITION_TYPE_GPT_DISK)
return grub_error (GRUB_ERR_BAD_PART_TABLE, "no GPT partition map found");
/* Read the GPT header. */
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)))
return grub_error (GRUB_ERR_BAD_PART_TABLE, "no valid GPT header");
grub_dprintf ("gpt", "Read a valid GPT header\n");
entries = grub_le_to_cpu64 (gpt.partitions);
for (i = 0; i < grub_le_to_cpu32 (gpt.maxpart); i++)
{
if (grub_disk_read (disk, entries, last_offset,
sizeof (entry), &entry))
return grub_errno;
if (grub_memcmp (&grub_gpt_partition_type_empty, &entry.type,
sizeof (grub_gpt_partition_type_empty)))
{
/* Calculate the first block and the size of the partition. */
part.start = grub_le_to_cpu64 (entry.start);
part.len = (grub_le_to_cpu64 (entry.end)
- grub_le_to_cpu64 (entry.start) + 1);
part.offset = entries;
part.number = i;
part.index = last_offset;
part.partmap = &grub_gpt_partition_map;
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 grub_errno;
}
last_offset += grub_le_to_cpu32 (gpt.partentry_size);
if (last_offset == GRUB_DISK_SECTOR_SIZE)
{
last_offset = 0;
entries++;
}
}
return GRUB_ERR_NONE;
}
/* Partition map type. */
static struct grub_partition_map grub_gpt_partition_map =
{
.name = "gpt",
.iterate = gpt_partition_map_iterate,
};
GRUB_MOD_INIT(part_gpt)
{
grub_partition_map_register (&grub_gpt_partition_map);
}
GRUB_MOD_FINI(part_gpt)
{
grub_partition_map_unregister (&grub_gpt_partition_map);
}

152
grub-core/partmap/msdos.c Normal file
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/* pc.c - Read PC 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/msdos_partition.h>
#include <grub/disk.h>
#include <grub/mm.h>
#include <grub/misc.h>
#include <grub/dl.h>
static struct grub_partition_map grub_msdos_partition_map;
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_mbr mbr;
int labeln = 0;
grub_disk_addr_t lastaddr;
grub_disk_addr_t ext_offset;
p.offset = 0;
ext_offset = 0;
p.number = -1;
p.partmap = &grub_msdos_partition_map;
/* Any value different than `p.offset' will satisfy the check during
first loop. */
lastaddr = !p.offset;
while (1)
{
int i;
struct grub_msdos_partition_entry *e;
/* Read the 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:
It saves last position which was a power of two. Then it compares the
saved value with a current one. This way it's guaranteed that the loop
will be broken by at most third walk.
*/
if (labeln && lastaddr == p.offset)
return grub_error (GRUB_ERR_BAD_PART_TABLE, "loop detected");
labeln++;
if ((labeln & (labeln - 1)) == 0)
lastaddr = p.offset;
/* Check if it is valid. */
if (mbr.signature != grub_cpu_to_le16 (GRUB_PC_PARTITION_SIGNATURE))
return grub_error (GRUB_ERR_BAD_PART_TABLE, "no signature");
for (i = 0; i < 4; i++)
if (mbr.entries[i].flag & 0x7f)
return grub_error (GRUB_ERR_BAD_PART_TABLE, "bad boot flag");
/* Analyze DOS partitions. */
for (p.index = 0; p.index < 4; p.index++)
{
e = mbr.entries + p.index;
p.start = p.offset + grub_le_to_cpu32 (e->start);
p.len = grub_le_to_cpu32 (e->length);
grub_dprintf ("partition",
"partition %d: flag 0x%x, type 0x%x, start 0x%llx, len 0x%llx\n",
p.index, e->flag, e->type,
(unsigned long long) p.start,
(unsigned long long) p.len);
/* If this is a GPT partition, this MBR is just a dummy. */
if (e->type == GRUB_PC_PARTITION_TYPE_GPT_DISK && p.index == 0)
return grub_error (GRUB_ERR_BAD_PART_TABLE, "dummy mbr");
/* If this partition is a normal one, call the hook. */
if (! grub_msdos_partition_is_empty (e->type)
&& ! grub_msdos_partition_is_extended (e->type))
{
p.number++;
if (hook (disk, &p))
return grub_errno;
}
else if (p.number < 4)
/* If this partition is a logical one, shouldn't increase the
partition number. */
p.number++;
}
/* Find an extended partition. */
for (i = 0; i < 4; i++)
{
e = mbr.entries + i;
if (grub_msdos_partition_is_extended (e->type))
{
p.offset = ext_offset + grub_le_to_cpu32 (e->start);
if (! ext_offset)
ext_offset = p.offset;
break;
}
}
/* If no extended partition, the end. */
if (i == 4)
break;
}
finish:
return grub_errno;
}
/* Partition map type. */
static struct grub_partition_map grub_msdos_partition_map =
{
.name = "msdos",
.iterate = pc_partition_map_iterate,
};
GRUB_MOD_INIT(part_msdos)
{
grub_partition_map_register (&grub_msdos_partition_map);
}
GRUB_MOD_FINI(part_msdos)
{
grub_partition_map_unregister (&grub_msdos_partition_map);
}

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/* sun.c - Read SUN style partition tables. */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2002,2005,2006,2007 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/>.
*/
#include <grub/partition.h>
#include <grub/disk.h>
#include <grub/mm.h>
#include <grub/misc.h>
#include <grub/dl.h>
#include <grub/symbol.h>
#include <grub/types.h>
#include <grub/err.h>
#define GRUB_PARTMAP_SUN_MAGIC 0xDABE
#define GRUB_PARTMAP_SUN_MAX_PARTS 8
#define GRUB_PARTMAP_SUN_WHOLE_DISK_ID 0x05
struct grub_sun_partition_info
{
grub_uint8_t spare1;
grub_uint8_t id;
grub_uint8_t spare2;
grub_uint8_t flags;
} __attribute__ ((packed));
struct grub_sun_partition_descriptor
{
grub_uint32_t start_cylinder;
grub_uint32_t num_sectors;
} __attribute__ ((packed));
struct grub_sun_block
{
grub_uint8_t info[128]; /* Informative text string. */
grub_uint8_t spare0[14];
struct grub_sun_partition_info infos[8];
grub_uint8_t spare1[246]; /* Boot information etc. */
grub_uint16_t rspeed; /* Disk rotational speed. */
grub_uint16_t pcylcount; /* Physical cylinder count. */
grub_uint16_t sparecyl; /* extra sects per cylinder. */
grub_uint8_t spare2[4]; /* More magic... */
grub_uint16_t ilfact; /* Interleave factor. */
grub_uint16_t ncyl; /* Data cylinder count. */
grub_uint16_t nacyl; /* Alt. cylinder count. */
grub_uint16_t ntrks; /* Tracks per cylinder. */
grub_uint16_t nsect; /* Sectors per track. */
grub_uint8_t spare3[4]; /* Even more magic... */
struct grub_sun_partition_descriptor partitions[8];
grub_uint16_t magic; /* Magic number. */
grub_uint16_t csum; /* Label xor'd checksum. */
} __attribute__ ((packed));
static struct grub_partition_map grub_sun_partition_map;
/* Verify checksum (true=ok). */
static int
grub_sun_is_valid (struct grub_sun_block *label)
{
grub_uint16_t *pos;
grub_uint16_t sum = 0;
for (pos = (grub_uint16_t *) label;
pos < (grub_uint16_t *) (label + 1);
pos++)
sum ^= *pos;
return ! sum;
}
static grub_err_t
sun_partition_map_iterate (grub_disk_t disk,
int (*hook) (grub_disk_t disk,
const grub_partition_t partition))
{
grub_partition_t p;
struct grub_sun_block block;
int partnum;
grub_err_t err;
p = (grub_partition_t) grub_zalloc (sizeof (struct grub_partition));
if (! p)
return grub_errno;
p->partmap = &grub_sun_partition_map;
err = grub_disk_read (disk, 0, 0, sizeof (struct grub_sun_block),
&block);
if (err)
{
grub_free (p);
return err;
}
if (GRUB_PARTMAP_SUN_MAGIC != grub_be_to_cpu16 (block.magic))
{
grub_free (p);
return grub_error (GRUB_ERR_BAD_PART_TABLE, "not a sun partition table");
}
if (! grub_sun_is_valid (&block))
{
grub_free (p);
return grub_error (GRUB_ERR_BAD_PART_TABLE, "invalid checksum");
}
/* Maybe another error value would be better, because partition
table _is_ recognized but invalid. */
for (partnum = 0; partnum < GRUB_PARTMAP_SUN_MAX_PARTS; partnum++)
{
struct grub_sun_partition_descriptor *desc;
if (block.infos[partnum].id == 0
|| block.infos[partnum].id == GRUB_PARTMAP_SUN_WHOLE_DISK_ID)
continue;
desc = &block.partitions[partnum];
p->start = ((grub_uint64_t) grub_be_to_cpu32 (desc->start_cylinder)
* grub_be_to_cpu16 (block.ntrks)
* grub_be_to_cpu16 (block.nsect));
p->len = grub_be_to_cpu32 (desc->num_sectors);
p->number = p->index = partnum;
if (p->len)
{
if (hook (disk, p))
partnum = GRUB_PARTMAP_SUN_MAX_PARTS;
}
}
grub_free (p);
return grub_errno;
}
/* Partition map type. */
static struct grub_partition_map grub_sun_partition_map =
{
.name = "sun",
.iterate = sun_partition_map_iterate,
};
GRUB_MOD_INIT(part_sun)
{
grub_partition_map_register (&grub_sun_partition_map);
}
GRUB_MOD_FINI(part_sun)
{
grub_partition_map_unregister (&grub_sun_partition_map);
}

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/* sunpc.c - Read SUN PC style partition tables. */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2002,2005,2006,2007,2009 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/disk.h>
#include <grub/mm.h>
#include <grub/misc.h>
#include <grub/dl.h>
#include <grub/symbol.h>
#include <grub/types.h>
#include <grub/err.h>
#define GRUB_PARTMAP_SUN_PC_MAGIC 0xDABE
#define GRUB_PARTMAP_SUN_PC_MAX_PARTS 16
#define GRUB_PARTMAP_SUN_PC_WHOLE_DISK_ID 0x05
struct grub_sun_pc_partition_descriptor
{
grub_uint16_t id;
grub_uint16_t unused;
grub_uint32_t start_sector;
grub_uint32_t num_sectors;
} __attribute__ ((packed));
struct grub_sun_pc_block
{
grub_uint8_t unused[72];
struct grub_sun_pc_partition_descriptor partitions[GRUB_PARTMAP_SUN_PC_MAX_PARTS];
grub_uint8_t unused2[244];
grub_uint16_t magic; /* Magic number. */
grub_uint16_t csum; /* Label xor'd checksum. */
} __attribute__ ((packed));
static struct grub_partition_map grub_sun_pc_partition_map;
/* Verify checksum (true=ok). */
static int
grub_sun_is_valid (struct grub_sun_pc_block *label)
{
grub_uint16_t *pos;
grub_uint16_t sum = 0;
for (pos = (grub_uint16_t *) label;
pos < (grub_uint16_t *) (label + 1);
pos++)
sum ^= *pos;
return ! sum;
}
static grub_err_t
sun_pc_partition_map_iterate (grub_disk_t disk,
int (*hook) (grub_disk_t disk,
const grub_partition_t partition))
{
grub_partition_t p;
struct grub_sun_pc_block block;
int partnum;
grub_err_t err;
p = (grub_partition_t) grub_zalloc (sizeof (struct grub_partition));
if (! p)
return grub_errno;
p->partmap = &grub_sun_pc_partition_map;
err = grub_disk_read (disk, 1, 0, sizeof (struct grub_sun_pc_block), &block);
if (err)
{
grub_free (p);
return err;
}
if (GRUB_PARTMAP_SUN_PC_MAGIC != grub_le_to_cpu16 (block.magic))
{
grub_free (p);
return grub_error (GRUB_ERR_BAD_PART_TABLE,
"not a sun_pc partition table");
}
if (! grub_sun_is_valid (&block))
{
grub_free (p);
return grub_error (GRUB_ERR_BAD_PART_TABLE, "invalid checksum");
}
/* Maybe another error value would be better, because partition
table _is_ recognized but invalid. */
for (partnum = 0; partnum < GRUB_PARTMAP_SUN_PC_MAX_PARTS; partnum++)
{
struct grub_sun_pc_partition_descriptor *desc;
if (block.partitions[partnum].id == 0
|| block.partitions[partnum].id == GRUB_PARTMAP_SUN_PC_WHOLE_DISK_ID)
continue;
desc = &block.partitions[partnum];
p->start = grub_le_to_cpu32 (desc->start_sector);
p->len = grub_le_to_cpu32 (desc->num_sectors);
p->number = partnum;
if (p->len)
{
if (hook (disk, p))
partnum = GRUB_PARTMAP_SUN_PC_MAX_PARTS;
}
}
grub_free (p);
return grub_errno;
}
/* Partition map type. */
static struct grub_partition_map grub_sun_pc_partition_map =
{
.name = "sunpc",
.iterate = sun_pc_partition_map_iterate,
};
GRUB_MOD_INIT(part_sunpc)
{
grub_partition_map_register (&grub_sun_pc_partition_map);
}
GRUB_MOD_FINI(part_sunpc)
{
grub_partition_map_unregister (&grub_sun_pc_partition_map);
}