142 lines
4.0 KiB
C
142 lines
4.0 KiB
C
/*
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* VAS_EBOOT -- GRand Unified Bootloader
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* Copyright (C) 1999,2000,2001,2002,2004,2006,2007 Free Software Foundation, Inc.
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*
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* VAS_EBOOT is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* VAS_EBOOT is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with VAS_EBOOT. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef VAS_EBOOT_PART_HEADER
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#define VAS_EBOOT_PART_HEADER 1
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#include <VasEBoot/dl.h>
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#include <VasEBoot/list.h>
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struct VasEBoot_disk;
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typedef struct VasEBoot_partition *VasEBoot_partition_t;
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#ifdef VAS_EBOOT_UTIL
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typedef enum
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{
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VAS_EBOOT_EMBED_PCBIOS
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} VasEBoot_embed_type_t;
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#endif
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typedef int (*VasEBoot_partition_iterate_hook_t) (struct VasEBoot_disk *disk,
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const VasEBoot_partition_t partition,
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void *data);
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/* Partition map type. */
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struct VasEBoot_partition_map
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{
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/* The next partition map type. */
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struct VasEBoot_partition_map *next;
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struct VasEBoot_partition_map **prev;
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/* The name of the partition map type. */
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const char *name;
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/* Call HOOK with each partition, until HOOK returns non-zero. */
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VasEBoot_err_t (*iterate) (struct VasEBoot_disk *disk,
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VasEBoot_partition_iterate_hook_t hook, void *hook_data);
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#ifdef VAS_EBOOT_UTIL
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#define VAS_EBOOT_MIN_RECOMMENDED_MBR_GAP 1900
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/* Determine sectors available for embedding. */
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VasEBoot_err_t (*embed) (struct VasEBoot_disk *disk, unsigned int *nsectors,
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unsigned int max_nsectors,
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VasEBoot_embed_type_t embed_type,
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VasEBoot_disk_addr_t **sectors,
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int warn_short);
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#endif
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};
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typedef struct VasEBoot_partition_map *VasEBoot_partition_map_t;
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/* Partition description. */
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struct VasEBoot_partition
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{
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/* The partition number. */
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int number;
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/* The start sector (relative to parent). */
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VasEBoot_disk_addr_t start;
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/* The length in sector units. */
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VasEBoot_uint64_t len;
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/* The offset of the partition table. */
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VasEBoot_disk_addr_t offset;
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/* The index of this partition in the partition table. */
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int index;
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/* Parent partition (physically contains this partition). */
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struct VasEBoot_partition *parent;
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/* The type partition map. */
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VasEBoot_partition_map_t partmap;
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/* The type of partition when it's on MSDOS.
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Used for embedding detection. */
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VasEBoot_uint8_t msdostype;
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};
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VasEBoot_partition_t EXPORT_FUNC(VasEBoot_partition_probe) (struct VasEBoot_disk *disk,
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const char *str);
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int EXPORT_FUNC(VasEBoot_partition_iterate) (struct VasEBoot_disk *disk,
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VasEBoot_partition_iterate_hook_t hook,
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void *hook_data);
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char *EXPORT_FUNC(VasEBoot_partition_get_name) (const VasEBoot_partition_t partition);
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extern VasEBoot_partition_map_t EXPORT_VAR(VasEBoot_partition_map_list);
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#ifndef VAS_EBOOT_LST_GENERATOR
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static inline void
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VasEBoot_partition_map_register (VasEBoot_partition_map_t partmap)
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{
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VasEBoot_list_push (VAS_EBOOT_AS_LIST_P (&VasEBoot_partition_map_list),
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VAS_EBOOT_AS_LIST (partmap));
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}
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#endif
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static inline void
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VasEBoot_partition_map_unregister (VasEBoot_partition_map_t partmap)
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{
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VasEBoot_list_remove (VAS_EBOOT_AS_LIST (partmap));
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}
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#define FOR_PARTITION_MAPS(var) FOR_LIST_ELEMENTS((var), (VasEBoot_partition_map_list))
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static inline VasEBoot_disk_addr_t
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VasEBoot_partition_get_start (const VasEBoot_partition_t p)
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{
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VasEBoot_partition_t part;
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VasEBoot_uint64_t part_start = 0;
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for (part = p; part; part = part->parent)
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part_start += part->start;
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return part_start;
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}
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static inline VasEBoot_uint64_t
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VasEBoot_partition_get_len (const VasEBoot_partition_t p)
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{
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return p->len;
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}
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#endif /* ! VAS_EBOOT_PART_HEADER */
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