blob: 43eefd75917ec2e4418d4959f434a18b64f3daaf [file] [log] [blame]
// Copyright 2014 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "trunks/tpm_state.h"
#include <map>
#include <string>
#include <vector>
#include <base/callback.h>
#include <base/macros.h>
#include "trunks/tpm_generated.h"
#include "trunks/trunks_export.h"
namespace trunks {
class TrunksFactory;
// TpmStateImpl is the default implementation of the TpmState interface.
class TRUNKS_EXPORT TpmStateImpl : public TpmState {
explicit TpmStateImpl(const TrunksFactory& factory);
TpmStateImpl(const TpmStateImpl&) = delete;
TpmStateImpl& operator=(const TpmStateImpl&) = delete;
~TpmStateImpl() override = default;
// TpmState methods.
TPM_RC Initialize() override;
bool IsOwnerPasswordSet() override;
bool IsEndorsementPasswordSet() override;
bool IsLockoutPasswordSet() override;
bool IsOwned() override;
bool IsInLockout() override;
bool IsPlatformHierarchyEnabled() override;
bool IsStorageHierarchyEnabled() override;
bool IsEndorsementHierarchyEnabled() override;
bool IsEnabled() override;
bool WasShutdownOrderly() override;
bool IsRSASupported() override;
bool IsECCSupported() override;
uint32_t GetLockoutCounter() override;
uint32_t GetLockoutThreshold() override;
uint32_t GetLockoutInterval() override;
uint32_t GetLockoutRecovery() override;
uint32_t GetMaxNVSize() override;
uint32_t GetTpmFamily() override;
uint32_t GetSpecificationLevel() override;
uint32_t GetSpecificationRevision() override;
uint32_t GetManufacturer() override;
uint32_t GetTpmModel() override;
uint64_t GetFirmwareVersion() override;
std::string GetVendorIDString() override;
bool GetTpmProperty(TPM_PT property, uint32_t* value) override;
bool GetAlgorithmProperties(TPM_ALG_ID algorithm,
TPMA_ALGORITHM* properties) override;
// This helper method calls TPM2_GetCapability in a loop until all available
// capabilities of the given type are sent to the |callback|. The callback
// returns the next property value to query if there is more data available or
// 0 if the capability data was empty.
using CapabilityCallback = base::Callback<uint32_t(const TPMU_CAPABILITIES&)>;
TPM_RC GetCapability(const CapabilityCallback& callback,
TPM_CAP capability,
uint32_t property,
uint32_t max_properties_per_call);
// Queries TPM properties and populates tpm_properties_.
TPM_RC CacheTpmProperties();
uint32_t TpmPropertiesCallback(const TPMU_CAPABILITIES& capability_data);
// Queries algorithm properties and populates algorithm_properties_.
TPM_RC CacheAlgorithmProperties();
uint32_t AlgorithmCallback(const TPMU_CAPABILITIES& capability_data);
const TrunksFactory& factory_;
bool initialized_{false};
std::map<TPM_PT, uint32_t> tpm_properties_;
std::map<TPM_ALG_ID, TPMA_ALGORITHM> algorithm_properties_;
} // namespace trunks