#ifndef _IOKIT_IONVRAM_H
#define _IOKIT_IONVRAM_H
#include <IOKit/IOKitKeys.h>
#include <IOKit/IOService.h>
#include <IOKit/IODeviceTreeSupport.h>
#include <IOKit/nvram/IONVRAMController.h>
#define kIODTNVRAMOFPartitionName "common"
#define kIODTNVRAMXPRAMPartitionName "APL,MacOS75"
#define kIODTNVRAMPanicInfoPartitonName "APL,OSXPanic"
#define kIODTNVRAMFreePartitionName "wwwwwwwwwwww"
enum {
kIODTNVRAMImageSize = 0x2000,
kIODTNVRAMXPRAMSize = 0x0100,
kIODTNVRAMNameRegistrySize = 0x0400
};
enum {
kOFVariableTypeBoolean = 1,
kOFVariableTypeNumber,
kOFVariableTypeString,
kOFVariableTypeData
};
enum {
kOFVariablePermRootOnly = 0,
kOFVariablePermUserRead,
kOFVariablePermUserWrite
};
class IODTNVRAM : public IOService
{
OSDeclareDefaultStructors(IODTNVRAM);
private:
IONVRAMController *_nvramController;
const OSSymbol *_registryPropertiesKey;
UInt8 *_nvramImage;
bool _nvramImageDirty;
UInt32 _ofPartitionOffset;
UInt32 _ofPartitionSize;
UInt8 *_ofImage;
bool _ofImageDirty;
OSDictionary *_ofDict;
OSDictionary *_nvramPartitionOffsets;
OSDictionary *_nvramPartitionLengths;
UInt32 _xpramPartitionOffset;
UInt32 _xpramPartitionSize;
UInt8 *_xpramImage;
UInt32 _nrPartitionOffset;
UInt32 _nrPartitionSize;
UInt8 *_nrImage;
UInt32 _piPartitionOffset;
UInt32 _piPartitionSize;
UInt8 *_piImage;
bool _systemPaniced;
virtual UInt8 calculatePartitionChecksum(UInt8 *partitionHeader);
virtual IOReturn initOFVariables(void);
public:
virtual IOReturn syncOFVariables(void);
private:
virtual UInt32 getOFVariableType(const OSSymbol *propSymbol) const;
virtual UInt32 getOFVariablePerm(const OSSymbol *propSymbol) const;
virtual bool getOWVariableInfo(UInt32 variableNumber, const OSSymbol **propSymbol,
UInt32 *propType, UInt32 *propOffset);
virtual bool convertPropToObject(UInt8 *propName, UInt32 propNameLength,
UInt8 *propData, UInt32 propDataLength,
const OSSymbol **propSymbol,
OSObject **propObject);
virtual bool convertObjectToProp(UInt8 *buffer, UInt32 *length,
const OSSymbol *propSymbol, OSObject *propObject);
virtual UInt16 generateOWChecksum(UInt8 *buffer);
virtual bool validateOWChecksum(UInt8 *buffer);
virtual void updateOWBootArgs(const OSSymbol *key, OSObject *value);
virtual bool searchNVRAMProperty(struct IONVRAMDescriptor *hdr,
UInt32 *where);
virtual IOReturn readNVRAMPropertyType0(IORegistryEntry *entry,
const OSSymbol **name,
OSData **value);
virtual IOReturn writeNVRAMPropertyType0(IORegistryEntry *entry,
const OSSymbol *name,
OSData * value);
virtual OSData *unescapeBytesToData(const UInt8 *bytes, UInt32 length);
virtual OSData *escapeDataToData(OSData * value);
virtual IOReturn readNVRAMPropertyType1(IORegistryEntry *entry,
const OSSymbol **name,
OSData **value);
virtual IOReturn writeNVRAMPropertyType1(IORegistryEntry *entry,
const OSSymbol *name,
OSData *value);
public:
virtual bool init(IORegistryEntry *old, const IORegistryPlane *plane);
virtual void registerNVRAMController(IONVRAMController *nvram);
virtual void sync(void);
virtual bool serializeProperties(OSSerialize *s) const;
virtual OSObject *getProperty(const OSSymbol *aKey) const;
virtual OSObject *getProperty(const char *aKey) const;
virtual bool setProperty(const OSSymbol *aKey, OSObject *anObject);
virtual void removeProperty(const OSSymbol *aKey);
virtual IOReturn setProperties(OSObject *properties);
virtual IOReturn readXPRAM(IOByteCount offset, UInt8 *buffer,
IOByteCount length);
virtual IOReturn writeXPRAM(IOByteCount offset, UInt8 *buffer,
IOByteCount length);
virtual IOReturn readNVRAMProperty(IORegistryEntry *entry,
const OSSymbol **name,
OSData **value);
virtual IOReturn writeNVRAMProperty(IORegistryEntry *entry,
const OSSymbol *name,
OSData *value);
virtual OSDictionary *getNVRAMPartitions(void);
virtual IOReturn readNVRAMPartition(const OSSymbol *partitionID,
IOByteCount offset, UInt8 *buffer,
IOByteCount length);
virtual IOReturn writeNVRAMPartition(const OSSymbol *partitionID,
IOByteCount offset, UInt8 *buffer,
IOByteCount length);
virtual IOByteCount savePanicInfo(UInt8 *buffer, IOByteCount length);
};
#endif