Archipelago » blktap-utils

#ifndef _PARTITION_H_

#define _PARTITION_H_

#include <inttypes.h>

#define PARTITION_BOOTABLE            0x80

#define PARTITION_NON_BOOTABLE        0x00

#define MBR_SIGNATURE                 0xAA55

#define MBR_START_SECTOR              0x80

struct partition_geometry {

        unsigned char                 heads;

        unsigned char                 sectors;

        unsigned int                  cylinders;

};

struct partition_chs {

        uint8_t                       chs[3];

} __attribute__((__packed__));

struct primary_partition {

        uint8_t                       status;

        struct partition_chs          chs_first;

        uint8_t                       type;

        struct partition_chs          chs_last;

        uint32_t                      lba;

        uint32_t                      blocks;

} __attribute__((__packed__));

struct partition_table {

        uint8_t                       code[0x1b8];

        uint32_t                      disk_signature;

        uint8_t                       pad[0x2];

        struct primary_partition      partitions[4];

        uint16_t                      mbr_signature;

} __attribute__((__packed__));

void partition_table_in(struct partition_table *);

void partition_table_out(struct partition_table *);

int partition_table_validate(struct partition_table *);

void partition_table_dump(struct partition_table *);

struct partition_chs lba_to_chs(struct partition_geometry *, uint64_t);

#endif