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192 lines
6.3 KiB
C
192 lines
6.3 KiB
C
/*
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*
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* (c) 2004-2007 Laurent Vivier <Laurent@Vivier.EU>
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*
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*/
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#ifndef _LIBMAP_H
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#define _LIBMAP_H
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#include <sys/types.h>
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#include "libstream.h"
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#include "emile.h"
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enum {
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kPartitionAUXIsValid= 0x00000001,
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kPartitionAUXIsAllocated = 0x00000002,
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kPartitionAUXIsInUse= 0x00000004,
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kPartitionAUXIsBootValid = 0x00000008,
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kPartitionAUXIsReadable = 0x00000010,
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kPartitionAUXIsWriteable = 0x00000020,
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kPartitionAUXIsBootCodePositionIndependent = 0x00000040,
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kPartitionIsMountedAtStartup = 0x40000000,
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kPartitionIsStartup = 0x80000000,
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kPartitionIsChainCompatible = 0x00000100,
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kPartitionIsRealDeviceDriver = 0x00000200,
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kPartitionCanChainToNext = 0x00000400,
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};
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/* Constants for the Type field */
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enum {
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kDriverTypeMacSCSI = 0x0001,
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kDriverTypeMacATA = 0x0701,
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kDriverTypeMacSCSIChained = 0xFFFF,
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kDriverTypeMacATAChained = 0xF8FF
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};
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struct DriverInfo {
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int32_t Block;
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int16_t Size;
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int16_t Type;
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} __attribute__((packed));
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#define DD_MAX_DRIVER 61
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struct DriverDescriptor {
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int16_t Sig;
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int16_t BlkSize;
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int32_t BlkCount;
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int16_t DevType;
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int16_t DevId;
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int32_t Data;
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int16_t DrvrCount;
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struct DriverInfo DrvInfo[DD_MAX_DRIVER];
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int8_t Pad[6];
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} __attribute__((packed));
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#define ASSERT_DD(a) if ( sizeof(struct DriverDescriptor) != 512 ) { a }
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/* Driver signatures, stored in the first four byte of pmPad. */
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enum {
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kPatchDriverSignature = 0x70744452, /* 'ptDR', SCSI and ATA[PI] patch driver */
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kSCSIDriverSignature = 0x00010600, /* SCSI hard disk driver */
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kATADriverSignature = 0x77696b69, /*'wiki', ATA hard disk driver */
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kSCSICDDriverSignature = 0x43447672, /* 'CDvr', SCSI CD-ROM driver */
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kATAPIDriverSignature = 0x41545049, /* 'ATPI', ATAPI CD-ROM driver */
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kDriveSetupHFSSignature = 0x44535531, /* 'DSU1', Drive Setup HFS partition */
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};
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enum {
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kPatchMesh = 0x6d657368, /* 'mesh', fixes MESH bug */
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kPatchSCSI = 0x73637369, /* 'scsi' enable booting from CDROM */
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kPatchRuby = 0x72756279, /* 'ruby', volume larger than 2GB */
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kPatchSnag = 0x736e6167, /* 'snag', enable C key to boot CDROM */
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};
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struct Partition {
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int16_t Sig;
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int16_t SigPad;
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int32_t MapBlkCnt;
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int32_t PyPartStart;
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int32_t PartBlkCnt;
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char PartName[32];
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char PartType[32];
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int32_t LgDataStart;
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int32_t DataCnt;
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int32_t PartStatus;
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int32_t LgBootStart;
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int32_t BootSize;
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int32_t BootAddr;
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int32_t BootAddr2;
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int32_t BootEntry;
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int32_t BootEntry2;
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int32_t BootCksum;
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char Processor[16];
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int16_t Pad[188];
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} __attribute__((packed));
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#define ASSERT_P(a) if ( sizeof(struct Partition) != 512 ) { a }
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#define DD_SIGNATURE 0x4552
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#define MAP_SIGNATURE 0x504D
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#define APPLE_PARTITION_MAP "Apple_partition_map"
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#define APPLE_DRIVER "Apple_Driver"
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#define APPLE_DRIVER43 "Apple_Driver43"
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#define APPLE_MFS "Apple_MFS"
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#define APPLE_HFS "Apple_HFS"
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#define APPLE_UNIX_SVR2 "Apple_Unix_SVR2"
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#define APPLE_PRODOS "Apple_PRODOS"
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#define APPLE_FREE "Apple_Free"
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#define APPLE_SCRATCH "Apple_Scratch"
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#define APPLE_DRIVER_ATA "Apple_Driver_ATA"
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#define APPLE_DRIVER_ATAPI "Apple_Driver_ATAPI"
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#define APPLE_DRIVER43_CD "Apple_Driver43_CD"
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#define APPLE_FWDRIVER "Apple_FWDriver"
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#define APPLE_VOID "Apple_Void"
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#define APPLE_PATCHES "Apple_Patches"
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#define APPLE_DRIVER_EMILE "Apple_Driver_EMILE"
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#define MAP_NAME_LEN 256
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#define MAP_BLOCKSIZE 2048
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typedef struct {
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device_io_t *device;
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int current;
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struct DriverDescriptor drivers;
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char filler1[MAP_BLOCKSIZE-512];
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struct Partition partition;
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char filler2[MAP_BLOCKSIZE-512];
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} map_t;
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enum {
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INVALID_BOOTBLOCK = -1,
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APPLE_BOOTBLOCK = 0,
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EMILE_BOOTBLOCK,
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UNKNOWN_BOOTBLOCK,
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};
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#define FLOPPY_SECTOR_SIZE 512
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#define FIRST_LEVEL_SIZE (FLOPPY_SECTOR_SIZE * 2)
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#define BOOTBLOCK_SIZE (FLOPPY_SECTOR_SIZE * 2)
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extern int map_init(device_io_t *device, int partition);
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extern map_t* map_open(device_io_t *device);
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extern void map_close(map_t *map);
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extern int map_get_number(map_t *map);
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extern int map_read(map_t *map, int part);
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extern int map_write(map_t *map, int part);
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extern int map_partition_is_valid(map_t *map);
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extern int map_get_partition_geometry(map_t *map, int *start, int *count);
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extern char* map_get_partition_type(map_t *map);
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extern char* map_get_partition_name(map_t *map);
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extern int map_partition_is_bootable(map_t *map);
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extern int map_partition_is_startup(map_t *map);
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extern int map_set_partition_type(map_t *map, char* type);
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extern int map_set_partition_name(map_t *map, char* name);
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extern int map_partition_set_bootable(map_t *map, int enable);
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extern int map_partition_set_startup(map_t *map, int enable);
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extern int map_is_valid(map_t *map);
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extern int map_partition_get_flags(map_t *map);
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extern int map_partition_set_flags(map_t *map, int flags);
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extern int map_geometry(map_t *map, int *block_size,
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int *block_count);
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extern int map_get_driver_number(map_t *map);
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extern int map_get_driver_info(map_t *map, int number,
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int *block, int *size, int* type);
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extern int map_bootblock_read(map_t* map, char* bootblock);
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extern int map_bootblock_write(map_t* map, char* bootblock);
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extern int map_bootblock_get_type(char* bootblock);
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extern int map_bootblock_is_valid(char *bootblock);
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extern int map_set_startup(map_t *map, int partition);
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extern int emile_is_apple_driver(map_t *map);
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extern int map_has_apple_driver(map_t *map);
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extern int map_seek_driver_partition(map_t *map, int start);
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extern int map_get_bootinfo(map_t* map, int* bootstart, int *bootsize, int *bootaddr, int *bootentry, int* checksum, char* processor);
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extern int map_set_bootinfo(map_t *map, int bootstart, int bootsize, int bootaddr, int bootentry, int checksum, char* processor);
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extern int map_set_driver_info(map_t *map, int number, int block, int size, int type);
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extern int map_set_driver_number(map_t *map, int number);
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extern unsigned long map_get_driver_signature(map_t* map);
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extern int map_block0_write(map_t *map);
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extern int map_read_sector(map_t* map, off_t block, char *buffer, size_t nb);
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extern int map_write_sector(map_t* map, off_t block, char *buffer, size_t nb);
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extern int map_get_blocksize(map_t *map);
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extern unsigned short map_checksum(unsigned char *addr, unsigned int length);
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extern unsigned short map_checksum_ATA(unsigned char *addr, unsigned int length);
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extern char *map_read_driver(map_t *map, int driver_number);
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extern int map_write_driver(map_t *map, int driver_number, char *driver);
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#endif
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