2 * GRUB -- GRand Unified Bootloader
3 * Copyright (C) 1999,2000,2001,2002,2004,2006,2007 Free Software Foundation, Inc.
5 * GRUB is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
10 * GRUB is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
19 #ifndef GRUB_PART_HEADER
20 #define GRUB_PART_HEADER 1
23 #include <grub/list.h>
27 typedef struct grub_partition
*grub_partition_t
;
36 /* Partition map type. */
37 struct grub_partition_map
39 /* The next partition map type. */
40 struct grub_partition_map
*next
;
41 struct grub_partition_map
**prev
;
43 /* The name of the partition map type. */
46 /* Call HOOK with each partition, until HOOK returns non-zero. */
47 grub_err_t (*iterate
) (struct grub_disk
*disk
,
48 int (*hook
) (struct grub_disk
*disk
,
49 const grub_partition_t partition
));
51 /* Determine sectors available for embedding. */
52 grub_err_t (*embed
) (struct grub_disk
*disk
, unsigned int *nsectors
,
53 unsigned int max_nsectors
,
54 grub_embed_type_t embed_type
,
55 grub_disk_addr_t
**sectors
);
58 typedef struct grub_partition_map
*grub_partition_map_t
;
60 /* Partition description. */
63 /* The partition number. */
66 /* The start sector (relative to parent). */
67 grub_disk_addr_t start
;
69 /* The length in sector units. */
72 /* The offset of the partition table. */
73 grub_disk_addr_t offset
;
75 /* The index of this partition in the partition table. */
78 /* Parent partition (physically contains this partition). */
79 struct grub_partition
*parent
;
81 /* The type partition map. */
82 grub_partition_map_t partmap
;
84 /* The type of partition whne it's on MSDOS.
85 Used for embedding detection. */
86 grub_uint8_t msdostype
;
89 grub_partition_t
EXPORT_FUNC(grub_partition_probe
) (struct grub_disk
*disk
,
91 int EXPORT_FUNC(grub_partition_iterate
) (struct grub_disk
*disk
,
92 int (*hook
) (struct grub_disk
*disk
,
93 const grub_partition_t partition
));
94 char *EXPORT_FUNC(grub_partition_get_name
) (const grub_partition_t partition
);
97 extern grub_partition_map_t
EXPORT_VAR(grub_partition_map_list
);
99 #ifndef GRUB_LST_GENERATOR
101 grub_partition_map_register (grub_partition_map_t partmap
)
103 grub_list_push (GRUB_AS_LIST_P (&grub_partition_map_list
),
104 GRUB_AS_LIST (partmap
));
109 grub_partition_map_unregister (grub_partition_map_t partmap
)
111 grub_list_remove (GRUB_AS_LIST (partmap
));
114 #define FOR_PARTITION_MAPS(var) FOR_LIST_ELEMENTS((var), (grub_partition_map_list))
117 static inline grub_disk_addr_t
118 grub_partition_get_start (const grub_partition_t p
)
120 grub_partition_t part
;
121 grub_uint64_t part_start
= 0;
123 for (part
= p
; part
; part
= part
->parent
)
124 part_start
+= part
->start
;
129 static inline grub_uint64_t
130 grub_partition_get_len (const grub_partition_t p
)
135 #endif /* ! GRUB_PART_HEADER */