Tcg2Protocol.h

Go to the documentation of this file.

 
#ifndef __TCG2_PROTOCOL_H__
#define __TCG2_PROTOCOL_H__
 
#include <IndustryStandard/UefiTcgPlatform.h>
#include <IndustryStandard/Tpm20.h>
 
#define EFI_TCG2_PROTOCOL_GUID \
  {0x607f766c, 0x7455, 0x42be, { 0x93, 0x0b, 0xe4, 0xd7, 0x6d, 0xb2, 0x72, 0x0f }}
 
typedef struct tdEFI_TCG2_PROTOCOL EFI_TCG2_PROTOCOL;
 
typedef struct tdEFI_TCG2_VERSION {
  UINT8 Major;
  UINT8 Minor;
} EFI_TCG2_VERSION;
 
typedef UINT32 EFI_TCG2_EVENT_LOG_BITMAP;
typedef UINT32 EFI_TCG2_EVENT_LOG_FORMAT;
typedef UINT32 EFI_TCG2_EVENT_ALGORITHM_BITMAP;
 
#define EFI_TCG2_EVENT_LOG_FORMAT_TCG_1_2       0x00000001
#define EFI_TCG2_EVENT_LOG_FORMAT_TCG_2         0x00000002
 
typedef struct tdEFI_TCG2_BOOT_SERVICE_CAPABILITY {
  //
  // Allocated size of the structure
  //
  UINT8                            Size;
  //
  // Version of the EFI_TCG2_BOOT_SERVICE_CAPABILITY structure itself.
  // For this version of the protocol, the Major version shall be set to 1
  // and the Minor version shall be set to 1.
  //
  EFI_TCG2_VERSION                 StructureVersion;
  //
  // Version of the EFI TCG2 protocol.
  // For this version of the protocol, the Major version shall be set to 1
  // and the Minor version shall be set to 1.
  //
  EFI_TCG2_VERSION                 ProtocolVersion;
  //
  // Supported hash algorithms (this bitmap is determined by the supported PCR
  // banks in the TPM and the hashing algorithms supported by the firmware)
  //
  EFI_TCG2_EVENT_ALGORITHM_BITMAP  HashAlgorithmBitmap;
  //
  // Bitmap of supported event log formats
  //
  EFI_TCG2_EVENT_LOG_BITMAP        SupportedEventLogs;
  //
  // False = TPM not present
  //
  BOOLEAN                          TPMPresentFlag;
  //
  // Max size (in bytes) of a command that can be sent to the TPM
  //
  UINT16                           MaxCommandSize;
  //
  // Max size (in bytes) of a response that can be provided by the TPM
  //
  UINT16                           MaxResponseSize;
  //
  // 4-byte Vendor ID
  // (see TCG Vendor ID registry, Section "TPM Capabilities Vendor ID")
  //
  UINT32                           ManufacturerID;
  //
  // Maximum number of PCR banks (hashing algorithms) supported.
  // No granularity is provided to support a specific set of algorithms.
  // Minimum value is 1.
  //
  UINT32                           NumberOfPCRBanks;
  //
  // A bitmap of currently active PCR banks (hashing algorithms).
  // This is a subset of the supported hashing algorithms reported in HashAlgorithmBitMap.
  // NumberOfPcrBanks defines the number of bits that are set.
  //
  EFI_TCG2_EVENT_ALGORITHM_BITMAP  ActivePcrBanks;
} EFI_TCG2_BOOT_SERVICE_CAPABILITY;
 
#define EFI_TCG2_BOOT_HASH_ALG_SHA1    0x00000001
#define EFI_TCG2_BOOT_HASH_ALG_SHA256  0x00000002
#define EFI_TCG2_BOOT_HASH_ALG_SHA384  0x00000004
#define EFI_TCG2_BOOT_HASH_ALG_SHA512  0x00000008
#define EFI_TCG2_BOOT_HASH_ALG_SM3_256 0x00000010
 
//
// This bit is shall be set when an event shall be extended but not logged.
//
#define EFI_TCG2_EXTEND_ONLY  0x0000000000000001
//
// This bit shall be set when the intent is to measure a PE/COFF image.
//
#define PE_COFF_IMAGE     0x0000000000000010
 
#define MAX_PCR_INDEX  23
 
#pragma pack(1)
 
#define EFI_TCG2_EVENT_HEADER_VERSION  1
 
typedef struct {
  //
  // Size of the event header itself (sizeof(EFI_TCG2_EVENT_HEADER)).
  //
  UINT32            HeaderSize;
  //
  // Header version. For this version of this specification, the value shall be 1.
  //
  UINT16            HeaderVersion;
  //
  // Index of the PCR that shall be extended (0 - 23).
  //
  TCG_PCRINDEX      PCRIndex;
  //
  // Type of the event that shall be extended (and optionally logged).
  //
  TCG_EVENTTYPE     EventType;
} EFI_TCG2_EVENT_HEADER;
 
typedef struct tdEFI_TCG2_EVENT {
  //
  // Total size of the event including the Size component, the header and the Event data.
  //
  UINT32                Size;
  EFI_TCG2_EVENT_HEADER Header;
  UINT8                 Event[1];
} EFI_TCG2_EVENT;
 
#pragma pack()
 
typedef
EFI_STATUS
(EFIAPI *EFI_TCG2_GET_CAPABILITY) (
  IN EFI_TCG2_PROTOCOL                    *This,
  IN OUT EFI_TCG2_BOOT_SERVICE_CAPABILITY *ProtocolCapability
  );
 
typedef
EFI_STATUS
(EFIAPI *EFI_TCG2_GET_EVENT_LOG) (
  IN EFI_TCG2_PROTOCOL         *This,
  IN EFI_TCG2_EVENT_LOG_FORMAT EventLogFormat,
  OUT EFI_PHYSICAL_ADDRESS     *EventLogLocation,
  OUT EFI_PHYSICAL_ADDRESS     *EventLogLastEntry,
  OUT BOOLEAN                  *EventLogTruncated
  );
 
typedef
EFI_STATUS
(EFIAPI * EFI_TCG2_HASH_LOG_EXTEND_EVENT) (
  IN EFI_TCG2_PROTOCOL    *This,
  IN UINT64               Flags,
  IN EFI_PHYSICAL_ADDRESS DataToHash,
  IN UINT64               DataToHashLen,
  IN EFI_TCG2_EVENT       *EfiTcgEvent
  );
 
typedef
EFI_STATUS
(EFIAPI *EFI_TCG2_SUBMIT_COMMAND) (
  IN EFI_TCG2_PROTOCOL *This,
  IN UINT32            InputParameterBlockSize,
  IN UINT8             *InputParameterBlock,
  IN UINT32            OutputParameterBlockSize,
  IN UINT8             *OutputParameterBlock
  );
 
typedef
EFI_STATUS
(EFIAPI *EFI_TCG2_GET_ACTIVE_PCR_BANKS) (
  IN  EFI_TCG2_PROTOCOL *This,
  OUT UINT32            *ActivePcrBanks
  );
 
typedef
EFI_STATUS
(EFIAPI *EFI_TCG2_SET_ACTIVE_PCR_BANKS) (
  IN EFI_TCG2_PROTOCOL *This,
  IN UINT32            ActivePcrBanks
  );
 
typedef
EFI_STATUS
(EFIAPI *EFI_TCG2_GET_RESULT_OF_SET_ACTIVE_PCR_BANKS) (
  IN  EFI_TCG2_PROTOCOL  *This,
  OUT UINT32             *OperationPresent,
  OUT UINT32             *Response
  );
 
struct tdEFI_TCG2_PROTOCOL {
  EFI_TCG2_GET_CAPABILITY                     GetCapability;
  EFI_TCG2_GET_EVENT_LOG                      GetEventLog;
  EFI_TCG2_HASH_LOG_EXTEND_EVENT              HashLogExtendEvent;
  EFI_TCG2_SUBMIT_COMMAND                     SubmitCommand;
  EFI_TCG2_GET_ACTIVE_PCR_BANKS               GetActivePcrBanks;
  EFI_TCG2_SET_ACTIVE_PCR_BANKS               SetActivePcrBanks;
  EFI_TCG2_GET_RESULT_OF_SET_ACTIVE_PCR_BANKS GetResultOfSetActivePcrBanks;
};
 
extern EFI_GUID gEfiTcg2ProtocolGuid;
 
//
// Log entries after Get Event Log service
//
 
#define EFI_TCG2_FINAL_EVENTS_TABLE_GUID \
  {0x1e2ed096, 0x30e2, 0x4254, { 0xbd, 0x89, 0x86, 0x3b, 0xbe, 0xf8, 0x23, 0x25 }}
 
extern EFI_GUID gEfiTcg2FinalEventsTableGuid;
 
typedef struct tdEFI_TCG2_FINAL_EVENTS_TABLE {
  //
  // The version of this structure.
  //
  UINT64                  Version;
  //
  // Number of events recorded after invocation of GetEventLog API
  //
  UINT64                  NumberOfEvents;
  //
  // List of events of type TCG_PCR_EVENT2.
  //
//TCG_PCR_EVENT2          Event[1];
} EFI_TCG2_FINAL_EVENTS_TABLE;
 
#define EFI_TCG2_FINAL_EVENTS_TABLE_VERSION   1
 
#endif