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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2004,2006,2007 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/>.
*/
#ifndef GRUB_PART_HEADER
#define GRUB_PART_HEADER 1
#include <grub/dl.h>
#include <grub/list.h>
struct grub_disk;
typedef struct grub_partition *grub_partition_t;
#ifdef GRUB_UTIL
typedef enum
{
GRUB_EMBED_PCBIOS
} grub_embed_type_t;
#endif
typedef int (*grub_partition_iterate_hook_t) (struct grub_disk *disk,
const grub_partition_t partition,
void *data);
/* Partition map type. */
struct grub_partition_map
{
/* The next partition map type. */
struct grub_partition_map *next;
struct grub_partition_map **prev;
/* The name of the partition map type. */
const char *name;
/* Call HOOK with each partition, until HOOK returns non-zero. */
grub_err_t (*iterate) (struct grub_disk *disk,
grub_partition_iterate_hook_t hook, void *hook_data);
#ifdef GRUB_UTIL
#define GRUB_MIN_RECOMMENDED_MBR_GAP 1900
/* Determine sectors available for embedding. */
grub_err_t (*embed) (struct grub_disk *disk, unsigned int *nsectors,
unsigned int max_nsectors,
grub_embed_type_t embed_type,
grub_disk_addr_t **sectors,
int warn_short);
#endif
};
typedef struct grub_partition_map *grub_partition_map_t;
/* Partition description. */
struct grub_partition
{
/* The partition number. */
int number;
/* The start sector (relative to parent). */
grub_disk_addr_t start;
/* The length in sector units. */
grub_uint64_t len;
/* The offset of the partition table. */
grub_disk_addr_t offset;
/* The index of this partition in the partition table. */
int index;
/* Parent partition (physically contains this partition). */
struct grub_partition *parent;
/* The type partition map. */
grub_partition_map_t partmap;
/* The type of partition whne it's on MSDOS.
Used for embedding detection. */
grub_uint8_t msdostype;
};
grub_partition_t EXPORT_FUNC(grub_partition_probe) (struct grub_disk *disk,
const char *str);
int EXPORT_FUNC(grub_partition_iterate) (struct grub_disk *disk,
grub_partition_iterate_hook_t hook,
void *hook_data);
char *EXPORT_FUNC(grub_partition_get_name) (const grub_partition_t partition);
extern grub_partition_map_t EXPORT_VAR(grub_partition_map_list);
#ifndef GRUB_LST_GENERATOR
static inline void
grub_partition_map_register (grub_partition_map_t partmap)
{
grub_list_push (GRUB_AS_LIST_P (&grub_partition_map_list),
GRUB_AS_LIST (partmap));
}
#endif
static inline void
grub_partition_map_unregister (grub_partition_map_t partmap)
{
grub_list_remove (GRUB_AS_LIST (partmap));
}
#define FOR_PARTITION_MAPS(var) FOR_LIST_ELEMENTS((var), (grub_partition_map_list))
static inline grub_disk_addr_t
grub_partition_get_start (const grub_partition_t p)
{
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
grub_partition_get_len (const grub_partition_t p)
{
return p->len;
}
#endif /* ! GRUB_PART_HEADER */
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