EMILE/libemile/partition.h
2006-09-21 21:56:43 +00:00

130 lines
3.4 KiB
C

/*
*
* (c) 2004 Laurent Vivier <Laurent@lvivier.info>
*
*/
#include <sys/types.h>
#ifndef _PARTITION_H
#define _PARTITION_H
static __attribute__((used)) char* partition_header = "$CVSHeader$";
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 MAP_NAME_LEN 256
typedef struct {
int fd;
char name[MAP_NAME_LEN];
int current;
struct DriverDescriptor drivers;
struct Partition partition;
} emile_map_t;
#endif