//
// Copyright (C) 2014 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//

#include <gmock/gmock.h>
#include <gtest/gtest.h>

#include "trunks/mock_tpm.h"
#include "trunks/tpm_generated.h"
#include "trunks/tpm_state_impl.h"
#include "trunks/trunks_factory_for_test.h"

using testing::_;
using testing::DoAll;
using testing::Invoke;
using testing::NiceMock;
using testing::Return;
using testing::SetArgPointee;
using testing::WithArgs;

namespace trunks {

// From definition of TPMA_STARTUP_CLEAR.
const trunks::TPMA_STARTUP_CLEAR kPlatformHierarchyMask = 1U;

// A test fixture for TpmState tests.
class TpmStateTest : public testing::Test {
 public:
  TpmStateTest() {}
  ~TpmStateTest() override {}

  void SetUp() override {
    factory_.set_tpm(&mock_tpm_);
    permanent_data_ = GetValidCapabilityData(TPM_PT_PERMANENT, 0);
    startup_clear_data_ = GetValidCapabilityData(TPM_PT_STARTUP_CLEAR, 0);
    rsa_data_ = GetValidAlgorithmData(TPM_ALG_RSA, 0);
    ecc_data_ = GetValidAlgorithmData(TPM_ALG_ECC, 0);
    lockout_counter_ = GetValidCapabilityData(TPM_PT_LOCKOUT_COUNTER, 0);
    lockout_threshold_ = GetValidCapabilityData(TPM_PT_MAX_AUTH_FAIL, 0);
    lockout_interval_ = GetValidCapabilityData(TPM_PT_LOCKOUT_INTERVAL, 0);
    lockout_recovery_ = GetValidCapabilityData(TPM_PT_LOCKOUT_RECOVERY, 0);
    EXPECT_CALL(mock_tpm_, GetCapabilitySync(TPM_CAP_TPM_PROPERTIES,
                                             TPM_PT_PERMANENT, 1, _, _, _))
        .WillRepeatedly(WithArgs<4>(
            Invoke(this, &TpmStateTest::GetLivePermanent)));
    EXPECT_CALL(mock_tpm_, GetCapabilitySync(TPM_CAP_TPM_PROPERTIES,
                                             TPM_PT_STARTUP_CLEAR, 1, _, _, _))
        .WillRepeatedly(WithArgs<4>(
            Invoke(this, &TpmStateTest::GetLiveStartupClear)));
    EXPECT_CALL(mock_tpm_, GetCapabilitySync(TPM_CAP_ALGS,
                                             TPM_ALG_RSA, 1, _, _, _))
        .WillRepeatedly(WithArgs<4>(
            Invoke(this, &TpmStateTest::GetLiveRSA)));
    EXPECT_CALL(mock_tpm_, GetCapabilitySync(TPM_CAP_ALGS,
                                             TPM_ALG_ECC, 1, _, _, _))
        .WillRepeatedly(WithArgs<4>(
            Invoke(this, &TpmStateTest::GetLiveECC)));
    EXPECT_CALL(mock_tpm_, GetCapabilitySync(TPM_CAP_TPM_PROPERTIES,
                                             TPM_PT_LOCKOUT_COUNTER,
                                             1, _, _, _))
        .WillRepeatedly(WithArgs<4>(
            Invoke(this, &TpmStateTest::GetLiveLockoutCounter)));
    EXPECT_CALL(mock_tpm_, GetCapabilitySync(TPM_CAP_TPM_PROPERTIES,
                                             TPM_PT_MAX_AUTH_FAIL,
                                             1, _, _, _))
        .WillRepeatedly(WithArgs<4>(
            Invoke(this, &TpmStateTest::GetLiveLockoutThreshold)));
    EXPECT_CALL(mock_tpm_, GetCapabilitySync(TPM_CAP_TPM_PROPERTIES,
                                             TPM_PT_LOCKOUT_INTERVAL,
                                             1, _, _, _))
        .WillRepeatedly(WithArgs<4>(
            Invoke(this, &TpmStateTest::GetLiveLockoutInterval)));
    EXPECT_CALL(mock_tpm_, GetCapabilitySync(TPM_CAP_TPM_PROPERTIES,
                                             TPM_PT_LOCKOUT_RECOVERY,
                                             1, _, _, _))
        .WillRepeatedly(WithArgs<4>(
            Invoke(this, &TpmStateTest::GetLiveLockoutRecovery)));
  }

  TPM_RC GetLivePermanent(TPMS_CAPABILITY_DATA* capability_data) {
    *capability_data = permanent_data_;
    return TPM_RC_SUCCESS;
  }
  TPM_RC GetLiveStartupClear(TPMS_CAPABILITY_DATA* capability_data) {
    *capability_data = startup_clear_data_;
    return TPM_RC_SUCCESS;
  }
  TPM_RC GetLiveRSA(TPMS_CAPABILITY_DATA* capability_data) {
    *capability_data = rsa_data_;
    return TPM_RC_SUCCESS;
  }
  TPM_RC GetLiveECC(TPMS_CAPABILITY_DATA* capability_data) {
    *capability_data = ecc_data_;
    return TPM_RC_SUCCESS;
  }
  TPM_RC GetLiveLockoutCounter(TPMS_CAPABILITY_DATA* capability_data) {
    *capability_data = lockout_counter_;
    return TPM_RC_SUCCESS;
  }
  TPM_RC GetLiveLockoutThreshold(TPMS_CAPABILITY_DATA* capability_data) {
    *capability_data = lockout_threshold_;
    return TPM_RC_SUCCESS;
  }
  TPM_RC GetLiveLockoutInterval(TPMS_CAPABILITY_DATA* capability_data) {
    *capability_data = lockout_interval_;
    return TPM_RC_SUCCESS;
  }
  TPM_RC GetLiveLockoutRecovery(TPMS_CAPABILITY_DATA* capability_data) {
    *capability_data = lockout_recovery_;
    return TPM_RC_SUCCESS;
  }

 protected:
  TPMS_CAPABILITY_DATA GetValidCapabilityData(TPM_PT property, UINT32 value) {
    TPMS_CAPABILITY_DATA data;
    memset(&data, 0, sizeof(TPMS_CAPABILITY_DATA));
    data.capability = TPM_CAP_TPM_PROPERTIES;
    data.data.tpm_properties.count = 1;
    data.data.tpm_properties.tpm_property[0].property = property;
    data.data.tpm_properties.tpm_property[0].value = value;
    return data;
  }

  TPMS_CAPABILITY_DATA GetValidAlgorithmData(TPM_ALG_ID alg_id, UINT32 value) {
    TPMS_CAPABILITY_DATA data;
    memset(&data, 0, sizeof(TPMS_CAPABILITY_DATA));
    data.capability = TPM_CAP_ALGS;
    data.data.tpm_properties.count = 1;
    data.data.algorithms.alg_properties[0].alg = alg_id;
    data.data.algorithms.alg_properties[0].alg_properties = value;
    return data;
  }

  TrunksFactoryForTest factory_;
  NiceMock<MockTpm> mock_tpm_;
  TPMS_CAPABILITY_DATA permanent_data_;
  TPMS_CAPABILITY_DATA startup_clear_data_;
  TPMS_CAPABILITY_DATA rsa_data_;
  TPMS_CAPABILITY_DATA ecc_data_;
  TPMS_CAPABILITY_DATA lockout_counter_;
  TPMS_CAPABILITY_DATA lockout_threshold_;
  TPMS_CAPABILITY_DATA lockout_interval_;
  TPMS_CAPABILITY_DATA lockout_recovery_;
};

TEST(TpmState_DeathTest, NotInitialized) {
  TrunksFactoryForTest factory;
  TpmStateImpl tpm_state(factory);
  EXPECT_DEATH_IF_SUPPORTED(tpm_state.IsOwnerPasswordSet(), "Check failed");
  EXPECT_DEATH_IF_SUPPORTED(tpm_state.IsEndorsementPasswordSet(),
                            "Check failed");
  EXPECT_DEATH_IF_SUPPORTED(tpm_state.IsLockoutPasswordSet(), "Check failed");
  EXPECT_DEATH_IF_SUPPORTED(tpm_state.IsOwned(), "Check failed");
  EXPECT_DEATH_IF_SUPPORTED(tpm_state.IsInLockout(), "Check failed");
  EXPECT_DEATH_IF_SUPPORTED(tpm_state.IsPlatformHierarchyEnabled(),
                            "Check failed");
  EXPECT_DEATH_IF_SUPPORTED(tpm_state.IsStorageHierarchyEnabled(),
                            "Check failed");
  EXPECT_DEATH_IF_SUPPORTED(tpm_state.IsEndorsementHierarchyEnabled(),
                            "Check failed");
  EXPECT_DEATH_IF_SUPPORTED(tpm_state.IsEnabled(), "Check failed");
  EXPECT_DEATH_IF_SUPPORTED(tpm_state.WasShutdownOrderly(), "Check failed");
  EXPECT_DEATH_IF_SUPPORTED(tpm_state.IsRSASupported(), "Check failed");
  EXPECT_DEATH_IF_SUPPORTED(tpm_state.IsECCSupported(), "Check failed");
  EXPECT_DEATH_IF_SUPPORTED(tpm_state.GetLockoutCounter(), "Check failed");
  EXPECT_DEATH_IF_SUPPORTED(tpm_state.GetLockoutThreshold(), "Check failed");
  EXPECT_DEATH_IF_SUPPORTED(tpm_state.GetLockoutInterval(), "Check failed");
  EXPECT_DEATH_IF_SUPPORTED(tpm_state.GetLockoutRecovery(), "Check failed");
}

TEST_F(TpmStateTest, FlagsClear) {
  TpmStateImpl tpm_state(factory_);
  EXPECT_EQ(TPM_RC_SUCCESS, tpm_state.Initialize());
  EXPECT_FALSE(tpm_state.IsOwnerPasswordSet());
  EXPECT_FALSE(tpm_state.IsEndorsementPasswordSet());
  EXPECT_FALSE(tpm_state.IsLockoutPasswordSet());
  EXPECT_FALSE(tpm_state.IsInLockout());
  EXPECT_FALSE(tpm_state.IsOwned());
  EXPECT_FALSE(tpm_state.IsPlatformHierarchyEnabled());
  EXPECT_FALSE(tpm_state.IsStorageHierarchyEnabled());
  EXPECT_FALSE(tpm_state.IsEndorsementHierarchyEnabled());
  EXPECT_FALSE(tpm_state.IsEnabled());
  EXPECT_FALSE(tpm_state.WasShutdownOrderly());
  EXPECT_FALSE(tpm_state.IsRSASupported());
  EXPECT_FALSE(tpm_state.IsECCSupported());
  EXPECT_EQ(0, tpm_state.GetLockoutCounter());
  EXPECT_EQ(0, tpm_state.GetLockoutThreshold());
  EXPECT_EQ(0, tpm_state.GetLockoutInterval());
  EXPECT_EQ(0, tpm_state.GetLockoutRecovery());
}

TEST_F(TpmStateTest, FlagsSet) {
  uint32_t lockout_counter = 5;
  uint32_t lockout_threshold = 8;
  uint32_t lockout_interval = 1200;
  uint32_t lockout_recovery = 84600;
  permanent_data_.data.tpm_properties.tpm_property[0].value = ~0U;
  startup_clear_data_.data.tpm_properties.tpm_property[0].value = ~0U;
  lockout_counter_.data.tpm_properties.tpm_property[0].value = lockout_counter;
  lockout_threshold_.data.tpm_properties.tpm_property[0].value =
      lockout_threshold;
  lockout_interval_.data.tpm_properties.tpm_property[0].value =
      lockout_interval;
  lockout_recovery_.data.tpm_properties.tpm_property[0].value =
      lockout_recovery;
  rsa_data_.data.algorithms.alg_properties[0].alg_properties = ~0U;
  ecc_data_.data.algorithms.alg_properties[0].alg_properties = ~0U;
  TpmStateImpl tpm_state(factory_);
  EXPECT_EQ(TPM_RC_SUCCESS, tpm_state.Initialize());
  EXPECT_TRUE(tpm_state.IsOwnerPasswordSet());
  EXPECT_TRUE(tpm_state.IsEndorsementPasswordSet());
  EXPECT_TRUE(tpm_state.IsLockoutPasswordSet());
  EXPECT_TRUE(tpm_state.IsOwned());
  EXPECT_TRUE(tpm_state.IsInLockout());
  EXPECT_TRUE(tpm_state.IsPlatformHierarchyEnabled());
  EXPECT_TRUE(tpm_state.IsStorageHierarchyEnabled());
  EXPECT_TRUE(tpm_state.IsEndorsementHierarchyEnabled());
  EXPECT_FALSE(tpm_state.IsEnabled());
  EXPECT_TRUE(tpm_state.WasShutdownOrderly());
  EXPECT_TRUE(tpm_state.IsRSASupported());
  EXPECT_TRUE(tpm_state.IsECCSupported());
  EXPECT_EQ(lockout_counter, tpm_state.GetLockoutCounter());
  EXPECT_EQ(lockout_threshold, tpm_state.GetLockoutThreshold());
  EXPECT_EQ(lockout_interval, tpm_state.GetLockoutInterval());
  EXPECT_EQ(lockout_recovery, tpm_state.GetLockoutRecovery());
}

TEST_F(TpmStateTest, EnabledTpm) {
  startup_clear_data_.data.tpm_properties.tpm_property[0].value =
      ~kPlatformHierarchyMask;
  TpmStateImpl tpm_state(factory_);
  EXPECT_EQ(TPM_RC_SUCCESS, tpm_state.Initialize());
  EXPECT_FALSE(tpm_state.IsPlatformHierarchyEnabled());
  EXPECT_TRUE(tpm_state.IsStorageHierarchyEnabled());
  EXPECT_TRUE(tpm_state.IsEndorsementHierarchyEnabled());
  EXPECT_TRUE(tpm_state.IsEnabled());
  EXPECT_TRUE(tpm_state.WasShutdownOrderly());
}

TEST_F(TpmStateTest, BadResponsePermanentCapabilityType) {
  permanent_data_.capability = 0xFFFFF;
  TpmStateImpl tpm_state(factory_);
  EXPECT_NE(TPM_RC_SUCCESS, tpm_state.Initialize());
}

TEST_F(TpmStateTest, BadResponseStartupClearCapabilityType) {
  startup_clear_data_.capability = 0xFFFFF;
  TpmStateImpl tpm_state(factory_);
  EXPECT_NE(TPM_RC_SUCCESS, tpm_state.Initialize());
}

TEST_F(TpmStateTest, BadResponseLockoutCounterCapabilityType) {
  lockout_counter_.capability = 0xFFFFF;
  TpmStateImpl tpm_state(factory_);
  EXPECT_NE(TPM_RC_SUCCESS, tpm_state.Initialize());
}

TEST_F(TpmStateTest, BadResponseLockoutThresholdCapabilityType) {
  lockout_threshold_.capability = 0xFFFFF;
  TpmStateImpl tpm_state(factory_);
  EXPECT_NE(TPM_RC_SUCCESS, tpm_state.Initialize());
}

TEST_F(TpmStateTest, BadResponseLockoutIntervalCapabilityType) {
  lockout_interval_.capability = 0xFFFFF;
  TpmStateImpl tpm_state(factory_);
  EXPECT_NE(TPM_RC_SUCCESS, tpm_state.Initialize());
}

TEST_F(TpmStateTest, BadResponseLockoutRecoveryCapabilityType) {
  lockout_recovery_.capability = 0xFFFFF;
  TpmStateImpl tpm_state(factory_);
  EXPECT_NE(TPM_RC_SUCCESS, tpm_state.Initialize());
}

TEST_F(TpmStateTest, BadResponseRSAAlgCapabilityType) {
  rsa_data_.capability = 0xFFFFF;
  TpmStateImpl tpm_state(factory_);
  EXPECT_NE(TPM_RC_SUCCESS, tpm_state.Initialize());
}

TEST_F(TpmStateTest, BadResponseECCAlgCapabilityType) {
  ecc_data_.capability = 0xFFFFF;
  TpmStateImpl tpm_state(factory_);
  EXPECT_NE(TPM_RC_SUCCESS, tpm_state.Initialize());
}

TEST_F(TpmStateTest, BadResponsePermanentPropertyCount) {
  permanent_data_.data.tpm_properties.count = 0;
  TpmStateImpl tpm_state(factory_);
  EXPECT_NE(TPM_RC_SUCCESS, tpm_state.Initialize());
}

TEST_F(TpmStateTest, BadResponseStartupClearPropertyCount) {
  startup_clear_data_.data.tpm_properties.count = 0;
  TpmStateImpl tpm_state(factory_);
  EXPECT_NE(TPM_RC_SUCCESS, tpm_state.Initialize());
}

TEST_F(TpmStateTest, BadResponseLockoutCounterPropertyCount) {
  lockout_counter_.data.tpm_properties.count = 0;
  TpmStateImpl tpm_state(factory_);
  EXPECT_NE(TPM_RC_SUCCESS, tpm_state.Initialize());
}

TEST_F(TpmStateTest, BadResponseLockoutThresholdPropertyCount) {
  lockout_threshold_.data.tpm_properties.count = 0;
  TpmStateImpl tpm_state(factory_);
  EXPECT_NE(TPM_RC_SUCCESS, tpm_state.Initialize());
}

TEST_F(TpmStateTest, BadResponseLockoutIntervalPropertyCount) {
  lockout_interval_.data.tpm_properties.count = 0;
  TpmStateImpl tpm_state(factory_);
  EXPECT_NE(TPM_RC_SUCCESS, tpm_state.Initialize());
}

TEST_F(TpmStateTest, BadResponseLockoutRecoveryPropertyCount) {
  lockout_recovery_.data.tpm_properties.count = 0;
  TpmStateImpl tpm_state(factory_);
  EXPECT_NE(TPM_RC_SUCCESS, tpm_state.Initialize());
}

TEST_F(TpmStateTest, BadResponseRSAAlgPropertyCount) {
  rsa_data_.data.algorithms.count = 0;
  TpmStateImpl tpm_state(factory_);
  EXPECT_NE(TPM_RC_SUCCESS, tpm_state.Initialize());
}

TEST_F(TpmStateTest, BadResponseECCAlgPropertyCount) {
  ecc_data_.data.algorithms.count = 0;
  TpmStateImpl tpm_state(factory_);
  EXPECT_NE(TPM_RC_SUCCESS, tpm_state.Initialize());
}

TEST_F(TpmStateTest, BadResponsePermanentPropertyType) {
  permanent_data_.data.tpm_properties.tpm_property[0].property = 0xFFFFF;
  TpmStateImpl tpm_state(factory_);
  EXPECT_NE(TPM_RC_SUCCESS, tpm_state.Initialize());
}

TEST_F(TpmStateTest, BadResponseStartupClearPropertyType) {
  startup_clear_data_.data.tpm_properties.tpm_property[0].property = 0xFFFFF;
  TpmStateImpl tpm_state(factory_);
  EXPECT_NE(TPM_RC_SUCCESS, tpm_state.Initialize());
}

TEST_F(TpmStateTest, BadResponseLockoutCounterPropertyType) {
  lockout_counter_.data.tpm_properties.tpm_property[0].property = 0xFFFFF;
  TpmStateImpl tpm_state(factory_);
  EXPECT_NE(TPM_RC_SUCCESS, tpm_state.Initialize());
}

TEST_F(TpmStateTest, BadResponseLockoutThresholdPropertyType) {
  lockout_threshold_.data.tpm_properties.tpm_property[0].property = 0xFFFFF;
  TpmStateImpl tpm_state(factory_);
  EXPECT_NE(TPM_RC_SUCCESS, tpm_state.Initialize());
}

TEST_F(TpmStateTest, BadResponseLockoutIntervalPropertyType) {
  lockout_interval_.data.tpm_properties.tpm_property[0].property = 0xFFFFF;
  TpmStateImpl tpm_state(factory_);
  EXPECT_NE(TPM_RC_SUCCESS, tpm_state.Initialize());
}

TEST_F(TpmStateTest, BadResponseLockoutRecoveryPropertyType) {
  lockout_recovery_.data.tpm_properties.tpm_property[0].property = 0xFFFFF;
  TpmStateImpl tpm_state(factory_);
  EXPECT_NE(TPM_RC_SUCCESS, tpm_state.Initialize());
}

}  // namespace trunks