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parted
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v2.3
include/parted/disk.h
394 строки
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Hans de Goede
dos: add a partition flag for diagnostics / recovery partitions
29 апр 2010, 18:04
29 апр 2010, 18:04
131354f
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/* libparted - a library for manipulating disk partitions Copyright (C) 1999-2002, 2007-2010 Free Software Foundation, Inc. This program 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. This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */ /** * \addtogroup PedDisk * @{ */ /** \file disk.h */ #ifndef PED_DISK_H_INCLUDED #define PED_DISK_H_INCLUDED /** * Disk flags */ enum _PedDiskFlag { /* This flag (which defaults to true) controls if disk types for which cylinder alignment is optional do cylinder alignment when a new partition gets added. This flag is available for msdos and sun disklabels (for sun labels it only controls the aligning of the end of the partition) */ PED_DISK_CYLINDER_ALIGNMENT=1, }; #define PED_DISK_FIRST_FLAG PED_DISK_CYLINDER_ALIGNMENT #define PED_DISK_LAST_FLAG PED_DISK_CYLINDER_ALIGNMENT /** * Partition types */ enum _PedPartitionType { PED_PARTITION_NORMAL = 0x00, PED_PARTITION_LOGICAL = 0x01, PED_PARTITION_EXTENDED = 0x02, PED_PARTITION_FREESPACE = 0x04, PED_PARTITION_METADATA = 0x08, PED_PARTITION_PROTECTED = 0x10 }; /** * Partition flags. */ enum _PedPartitionFlag { PED_PARTITION_BOOT=1, PED_PARTITION_ROOT=2, PED_PARTITION_SWAP=3, PED_PARTITION_HIDDEN=4, PED_PARTITION_RAID=5, PED_PARTITION_LVM=6, PED_PARTITION_LBA=7, PED_PARTITION_HPSERVICE=8, PED_PARTITION_PALO=9, PED_PARTITION_PREP=10, PED_PARTITION_MSFT_RESERVED=11, PED_PARTITION_BIOS_GRUB=12, PED_PARTITION_APPLE_TV_RECOVERY=13, PED_PARTITION_DIAG=14 }; #define PED_PARTITION_FIRST_FLAG PED_PARTITION_BOOT #define PED_PARTITION_LAST_FLAG PED_PARTITION_DIAG enum _PedDiskTypeFeature { PED_DISK_TYPE_EXTENDED=1, /**< supports extended partitions */ PED_DISK_TYPE_PARTITION_NAME=2 /**< supports partition names */ }; #define PED_DISK_TYPE_FIRST_FEATURE PED_DISK_TYPE_EXTENDED #define PED_DISK_TYPE_LAST_FEATURE PED_DISK_TYPE_PARTITION_NAME struct _PedDisk; struct _PedPartition; struct _PedDiskOps; struct _PedDiskType; struct _PedDiskArchOps; typedef enum _PedDiskFlag PedDiskFlag; typedef enum _PedPartitionType PedPartitionType; typedef enum _PedPartitionFlag PedPartitionFlag; typedef enum _PedDiskTypeFeature PedDiskTypeFeature; typedef struct _PedDisk PedDisk; typedef struct _PedPartition PedPartition; typedef const struct _PedDiskOps PedDiskOps; typedef struct _PedDiskType PedDiskType; typedef const struct _PedDiskArchOps PedDiskArchOps; #include <parted/device.h> #include <parted/filesys.h> #include <parted/natmath.h> #include <parted/geom.h> #include <stdbool.h> /** @} */ /** * \addtogroup PedPartition * * @{ */ /** \file disk.h */ /** * PedPartition structure represents a partition. */ struct _PedPartition { PedPartition* prev; PedPartition* next; /**< the partition table of the partition */ PedDisk* disk; PedGeometry geom; /**< geometry of the partition */ /**< the partition number: In Linux, this is the same as the minor number. No assumption should be made about "num" and "type" - different disk labels have different rules. */ int num; PedPartitionType type; /**< the type of partition: a bit field of PED_PARTITION_LOGICAL, PED_PARTITION_EXTENDED, PED_PARTITION_METADATA and PED_PARTITION_FREESPACE. Both the first two, and the last two are mutually exclusive. An extended partition is a primary partition that may contain logical partitions. There is at most one extended partition on a disk. A logical partition is like a primary partition, except it's inside an extended partition. Internally, pseudo partitions are allocated to represent free space, or disk label meta-data. These have the PED_PARTITION_FREESPACE or PED_PARTITION_METADATA bit set. */ /**< The type of file system on the partition. NULL if unknown. */ const PedFileSystemType* fs_type; /**< Only used for an extended partition. The list of logical partitions (and free space and metadata within the extended partition). */ PedPartition* part_list; void* disk_specific; }; /** @} */ /** * \addtogroup PedDisk * @{ */ /** * Represents a disk label (partition table). */ struct _PedDisk { PedDevice* dev; /**< the device where the partition table lies */ const PedDiskType* type; /**< type of disk label */ const int* block_sizes; /**< block sizes supported by this label */ PedPartition* part_list; /**< list of partitions. Access with ped_disk_next_partition() */ void* disk_specific; /* office use only ;-) */ int needs_clobber; /**< clobber before write? */ int update_mode; /**< mode without free/metadata partitions, for easier update */ }; struct _PedDiskOps { /* disk label operations */ int (*probe) (const PedDevice *dev); int (*clobber) (PedDevice* dev); PedDisk* (*alloc) (const PedDevice* dev); PedDisk* (*duplicate) (const PedDisk* disk); void (*free) (PedDisk* disk); int (*read) (PedDisk* disk); int (*write) (const PedDisk* disk); int (*disk_set_flag) ( PedDisk *disk, PedDiskFlag flag, int state); int (*disk_get_flag) ( const PedDisk *disk, PedDiskFlag flag); int (*disk_is_flag_available) ( const PedDisk *disk, PedDiskFlag flag); /** \todo add label guessing op here */ /* partition operations */ PedPartition* (*partition_new) ( const PedDisk* disk, PedPartitionType part_type, const PedFileSystemType* fs_type, PedSector start, PedSector end); PedPartition* (*partition_duplicate) (const PedPartition* part); void (*partition_destroy) (PedPartition* part); int (*partition_set_system) (PedPartition* part, const PedFileSystemType* fs_type); int (*partition_set_flag) ( PedPartition* part, PedPartitionFlag flag, int state); int (*partition_get_flag) ( const PedPartition* part, PedPartitionFlag flag); int (*partition_is_flag_available) ( const PedPartition* part, PedPartitionFlag flag); void (*partition_set_name) (PedPartition* part, const char* name); const char* (*partition_get_name) (const PedPartition* part); int (*partition_align) (PedPartition* part, const PedConstraint* constraint); int (*partition_enumerate) (PedPartition* part); bool (*partition_check) (const PedPartition* part); /* other */ int (*alloc_metadata) (PedDisk* disk); int (*get_max_primary_partition_count) (const PedDisk* disk); bool (*get_max_supported_partition_count) (const PedDisk* disk, int* supported); PedAlignment *(*get_partition_alignment)(const PedDisk *disk); PedSector (*max_length) (void); PedSector (*max_start_sector) (void); }; struct _PedDiskType { PedDiskType* next; const char* name; /**< the name of the partition table type. \todo not very intuitive name */ PedDiskOps* const ops; PedDiskTypeFeature features; /**< bitmap of supported features */ }; /** * Architecture-specific operations. i.e. communication with kernel (or * whatever) about changes, etc. */ struct _PedDiskArchOps { char* (*partition_get_path) (const PedPartition* part); int (*partition_is_busy) (const PedPartition* part); int (*disk_commit) (PedDisk* disk); }; extern void ped_disk_type_register (PedDiskType* type); extern void ped_disk_type_unregister (PedDiskType* type); extern PedDiskType* ped_disk_type_get_next (PedDiskType const *type); extern PedDiskType* ped_disk_type_get (const char* name); extern int ped_disk_type_check_feature (const PedDiskType* disk_type, PedDiskTypeFeature feature); extern PedDiskType* ped_disk_probe (PedDevice* dev); extern int ped_disk_clobber (PedDevice* dev); extern PedDisk* ped_disk_new (PedDevice* dev); extern PedDisk* ped_disk_new_fresh (PedDevice* dev, const PedDiskType* disk_type); extern PedDisk* ped_disk_duplicate (const PedDisk* old_disk); extern void ped_disk_destroy (PedDisk* disk); extern int ped_disk_commit (PedDisk* disk); extern int ped_disk_commit_to_dev (PedDisk* disk); extern int ped_disk_commit_to_os (PedDisk* disk); extern int ped_disk_check (const PedDisk* disk); extern void ped_disk_print (const PedDisk* disk); extern int ped_disk_get_primary_partition_count (const PedDisk* disk); extern int ped_disk_get_last_partition_num (const PedDisk* disk); extern int ped_disk_get_max_primary_partition_count (const PedDisk* disk); extern bool ped_disk_get_max_supported_partition_count(const PedDisk* disk, int* supported); extern PedAlignment *ped_disk_get_partition_alignment(const PedDisk *disk); extern int ped_disk_set_flag(PedDisk *disk, PedDiskFlag flag, int state); extern int ped_disk_get_flag(const PedDisk *disk, PedDiskFlag flag); extern int ped_disk_is_flag_available(const PedDisk *disk, PedDiskFlag flag); extern const char *ped_disk_flag_get_name(PedDiskFlag flag); extern PedDiskFlag ped_disk_flag_get_by_name(const char *name); extern PedDiskFlag ped_disk_flag_next(PedDiskFlag flag); /** @} */ /** * \addtogroup PedPartition * * @{ */ extern PedPartition* ped_partition_new (const PedDisk* disk, PedPartitionType type, const PedFileSystemType* fs_type, PedSector start, PedSector end); extern void ped_partition_destroy (PedPartition* part); extern int ped_partition_is_active (const PedPartition* part); extern int ped_partition_set_flag (PedPartition* part, PedPartitionFlag flag, int state); extern int ped_partition_get_flag (const PedPartition* part, PedPartitionFlag flag); extern int ped_partition_is_flag_available (const PedPartition* part, PedPartitionFlag flag); extern int ped_partition_set_system (PedPartition* part, const PedFileSystemType* fs_type); extern int ped_partition_set_name (PedPartition* part, const char* name); extern const char* ped_partition_get_name (const PedPartition* part); extern int ped_partition_is_busy (const PedPartition* part); extern char* ped_partition_get_path (const PedPartition* part); extern const char* ped_partition_type_get_name (PedPartitionType part_type); extern const char* ped_partition_flag_get_name (PedPartitionFlag flag); extern PedPartitionFlag ped_partition_flag_get_by_name (const char* name); extern PedPartitionFlag ped_partition_flag_next (PedPartitionFlag flag); /** @} */ /** * \addtogroup PedDisk * @{ */ extern int ped_disk_add_partition (PedDisk* disk, PedPartition* part, const PedConstraint* constraint); extern int ped_disk_remove_partition (PedDisk* disk, PedPartition* part); extern int ped_disk_delete_partition (PedDisk* disk, PedPartition* part); extern int ped_disk_delete_all (PedDisk* disk); extern int ped_disk_set_partition_geom (PedDisk* disk, PedPartition* part, const PedConstraint* constraint, PedSector start, PedSector end); extern int ped_disk_maximize_partition (PedDisk* disk, PedPartition* part, const PedConstraint* constraint); extern PedGeometry* ped_disk_get_max_partition_geometry (PedDisk* disk, PedPartition* part, const PedConstraint* constraint); extern int ped_disk_minimize_extended_partition (PedDisk* disk); extern PedPartition* ped_disk_next_partition (const PedDisk* disk, const PedPartition* part); extern PedPartition* ped_disk_get_partition (const PedDisk* disk, int num); extern PedPartition* ped_disk_get_partition_by_sector (const PedDisk* disk, PedSector sect); extern PedPartition* ped_disk_extended_partition (const PedDisk* disk); extern PedSector ped_disk_max_partition_length (const PedDisk *disk); extern PedSector ped_disk_max_partition_start_sector (const PedDisk *disk); /* internal functions */ extern PedDisk* _ped_disk_alloc (const PedDevice* dev, const PedDiskType* type); extern void _ped_disk_free (PedDisk* disk); /** @} */ /** * \addtogroup PedPartition * * @{ */ extern PedPartition* _ped_partition_alloc (const PedDisk* disk, PedPartitionType type, const PedFileSystemType* fs_type, PedSector start, PedSector end); extern void _ped_partition_free (PedPartition* part); extern int _ped_partition_attempt_align ( PedPartition* part, const PedConstraint* external, PedConstraint* internal); #endif /* PED_DISK_H_INCLUDED */ /** @} */