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Commit 95b5b048 authored by Max Bires's avatar Max Bires
Browse files

Client side implementation of Trusty IRPC HAL 

This change includes the code necessary to communicate to the
IRemotelyProvisionedComponent backend implementation running in Trusty.
It also makes the relevant changes to the manifest XML file to add the
IRemotelyProvisionedComponent HAL.

Bug: 192228022
Test: atest VtsHalRemotelyProvisionedComponentTargetTest
Change-Id: I32c30ce2dc44e95ff91574ce405f10e3b5dc9699
Merged-In: I32c30ce2dc44e95ff91574ce405f10e3b5dc9699
parent a436f589

trusty/keymaster/Android.bp

+1 −1
Original line number Diff line number Diff line
@@ -100,6 +100,7 @@ cc_binary { 
        "ipc/trusty_keymaster_ipc.cpp",

        "keymint/TrustyKeyMintDevice.cpp",

        "keymint/TrustyKeyMintOperation.cpp",

        "keymint/TrustyRemotelyProvisionedComponentDevice.cpp",

        "keymint/TrustySecureClock.cpp",

        "keymint/TrustySharedSecret.cpp",

        "keymint/service.cpp",
@@ -118,7 +119,6 @@ cc_binary { 
        "libtrusty",

    ],

    required: [

        "RemoteProvisioner",

        "android.hardware.hardware_keystore.xml",

    ],

}

trusty/keymaster/TrustyKeymaster.cpp

+10 −0
Original line number Diff line number Diff line
@@ -158,6 +158,16 @@ void TrustyKeymaster::GenerateKey(const GenerateKeyRequest& request, 
    }

}



void TrustyKeymaster::GenerateRkpKey(const GenerateRkpKeyRequest& request,

                                     GenerateRkpKeyResponse* response) {

    ForwardCommand(KM_GENERATE_RKP_KEY, request, response);

}



void TrustyKeymaster::GenerateCsr(const GenerateCsrRequest& request,

                                  GenerateCsrResponse* response) {

    ForwardCommand(KM_GENERATE_CSR, request, response);

}



void TrustyKeymaster::GetKeyCharacteristics(const GetKeyCharacteristicsRequest& request,

                                            GetKeyCharacteristicsResponse* response) {

    ForwardCommand(KM_GET_KEY_CHARACTERISTICS, request, response);

trusty/keymaster/include/trusty_keymaster/TrustyKeymaster.h

+2 −0
Original line number Diff line number Diff line
@@ -42,6 +42,8 @@ class TrustyKeymaster { 
    void AddRngEntropy(const AddEntropyRequest& request, AddEntropyResponse* response);

    void Configure(const ConfigureRequest& request, ConfigureResponse* response);

    void GenerateKey(const GenerateKeyRequest& request, GenerateKeyResponse* response);

    void GenerateRkpKey(const GenerateRkpKeyRequest& request, GenerateRkpKeyResponse* response);

    void GenerateCsr(const GenerateCsrRequest& request, GenerateCsrResponse* response);

    void GetKeyCharacteristics(const GetKeyCharacteristicsRequest& request,

                               GetKeyCharacteristicsResponse* response);

    void ImportKey(const ImportKeyRequest& request, ImportKeyResponse* response);

trusty/keymaster/include/trusty_keymaster/TrustyRemotelyProvisionedComponentDevice.h

0 → 100644
+53 −0
Original line number Diff line number Diff line 
/*

 * Copyright 2021, 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.

 */



#pragma once



#include <aidl/android/hardware/security/keymint/BnRemotelyProvisionedComponent.h>

#include <aidl/android/hardware/security/keymint/RpcHardwareInfo.h>

#include <aidl/android/hardware/security/keymint/SecurityLevel.h>



#include <trusty_keymaster/TrustyKeymaster.h>



namespace aidl::android::hardware::security::keymint::trusty {



using ::keymaster::TrustyKeymaster;

using ::ndk::ScopedAStatus;

using ::std::shared_ptr;



class TrustyRemotelyProvisionedComponentDevice : public BnRemotelyProvisionedComponent {

  public:

    explicit TrustyRemotelyProvisionedComponentDevice(shared_ptr<TrustyKeymaster> impl)

        : impl_(std::move(impl)) {}

    virtual ~TrustyRemotelyProvisionedComponentDevice() = default;



    ScopedAStatus getHardwareInfo(RpcHardwareInfo* info) override;



    ScopedAStatus generateEcdsaP256KeyPair(bool testMode, MacedPublicKey* macedPublicKey,

                                           std::vector<uint8_t>* privateKeyHandle) override;



    ScopedAStatus generateCertificateRequest(bool testMode,

                                             const std::vector<MacedPublicKey>& keysToSign,

                                             const std::vector<uint8_t>& endpointEncCertChain,

                                             const std::vector<uint8_t>& challenge,

                                             DeviceInfo* deviceInfo, ProtectedData* protectedData,

                                             std::vector<uint8_t>* keysToSignMac) override;



  private:

    std::shared_ptr<::keymaster::TrustyKeymaster> impl_;

};



}  // namespace aidl::android::hardware::security::keymint::trusty

trusty/keymaster/include/trusty_keymaster/ipc/keymaster_ipc.h

+2 −0
Original line number Diff line number Diff line
@@ -56,6 +56,8 @@ enum keymaster_command : uint32_t { 
    KM_GET_VERSION_2                = (28 << KEYMASTER_REQ_SHIFT),

    KM_EARLY_BOOT_ENDED             = (29 << KEYMASTER_REQ_SHIFT),

    KM_DEVICE_LOCKED                = (30 << KEYMASTER_REQ_SHIFT),

    KM_GENERATE_RKP_KEY             = (31 << KEYMASTER_REQ_SHIFT),

    KM_GENERATE_CSR                 = (32 << KEYMASTER_REQ_SHIFT),



    // Bootloader/provisioning calls.

    KM_SET_BOOT_PARAMS = (0x1000 << KEYMASTER_REQ_SHIFT),