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