src/tpm2/TPMCmd/Platform/include/PlatformData.h - master - githubmirror/libtpms

src/tpm2/TPMCmd/Platform/include/PlatformData.h
103 строки3 KB
Stefan Berger
tpm2: Adopt the directory structure of upstream code repo
13 фев 2026, 17:59
13 фев 2026, 17:591425c91
// SPDX-License-Identifier: BSD-2-Clause

// This file contains the instance data for the Platform module. It is collected
// in this file so that the state of the module is easier to manage.

#ifndef _PLATFORM_DATA_H_
#define _PLATFORM_DATA_H_

#ifdef _PLATFORM_DATA_C_
// instantiate the data below.
#  undef EXTERN
#  define EXTERN
#else
#  ifndef EXTERN
#    define EXTERN extern
#  endif  // EXTERN
#endif    // _PLATFORM_DATA_C_

// From Cancel.c
// Cancel flag.  It is initialized as FALSE, which indicate the command is not
// being canceled
EXTERN int s_isCanceled;

#ifndef HARDWARE_CLOCK
typedef uint64_t clock64_t;
// This is the value returned the last time that the system clock was read. This
// is only relevant for a simulator or virtual TPM.
EXTERN clock64_t s_realTimePrevious;

// These values are used to try to synthesize a long lived version of clock().
EXTERN clock64_t s_lastSystemTime;
EXTERN clock64_t s_lastReportedTime;

// This is the rate adjusted value that is the equivalent of what would be read from
// a hardware register that produced rate adjusted time.
EXTERN clock64_t s_tpmTime;
/* libtpms added begin */
EXTERN int64_t  s_hostMonotonicAdjustTime;
EXTERN uint64_t s_suspendedElapsedTime;
/* libtpms added end */
#endif  // HARDWARE_CLOCK

// This value indicates that the timer was reset
EXTERN int s_timerReset;
// This value indicates that the timer was stopped. It causes a clock discontinuity.
EXTERN int s_timerStopped;

// This variable records the time when _plat__TimerReset is called.  This mechanism
// allow us to subtract the time when TPM is power off from the total
// time reported by clock() function
EXTERN uint64_t s_initClock;

// This variable records the timer adjustment factor.
EXTERN unsigned int s_adjustRate;

// For LocalityPlat.c
// Locality of current command
EXTERN unsigned char s_locality;

// For NVMem.c
// Choose if the NV memory should be backed by RAM or by file.
// If this macro is defined, then a file is used as NV.  If it is not defined,
// then RAM is used to back NV memory. Comment out to use RAM.

#if (!defined VTPM) || ((VTPM != NO) && (VTPM != YES))
#  undef VTPM
#  define VTPM NO                 // Default: Either YES or NO   libtpms: NO
#endif

// For a simulation, use a file to back up the NV
#if (!defined FILE_BACKED_NV) || ((FILE_BACKED_NV != NO) && (FILE_BACKED_NV != YES))
#  undef FILE_BACKED_NV
#  define FILE_BACKED_NV (VTPM && YES)  // Default: Either YES or NO
#endif

#if !SIMULATION
#  undef FILE_BACKED_NV
#  define FILE_BACKED_NV YES	// libtpms: write NvChip file if no callbacks are set
#else
#error Do not define SIMULATION for libtpms!
#endif  // SIMULATION

EXTERN unsigned char s_NV[NV_MEMORY_SIZE];
EXTERN int           s_NvIsAvailable;
EXTERN int           s_NV_unrecoverable;
EXTERN int           s_NV_recoverable;

// For PPPlat.c
// Physical presence.  It is initialized to FALSE
EXTERN int s_physicalPresence;

// From Power
EXTERN int s_powerLost;

// For Entropy.c
EXTERN uint32_t lastEntropy;

#define DEFINE_ACT(N) EXTERN ACT_DATA ACT_##N;
FOR_EACH_ACT(DEFINE_ACT)

EXTERN int actTicksAllowed;

#endif  // _PLATFORM_DATA_H_