efe6ad0b83
Increment the rate limiting counter when the application sends an abort message. Bug: 138655142 Test: Ran keystore_unit_tests and manually checked behavior of keystore application with confimrationui. Change-Id: I5f3af166391a32748a26f7709d30a5ac718499c0
108 lines
4.2 KiB
C++
108 lines
4.2 KiB
C++
/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef KEYSTORE_CONFIRMATION_MANAGER_H_
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#define KEYSTORE_CONFIRMATION_MANAGER_H_
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#include <android/hardware/confirmationui/1.0/IConfirmationUI.h>
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#include <android/hardware/confirmationui/1.0/types.h>
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#include <binder/Binder.h>
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#include <binder/IBinder.h>
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#include <binder/Status.h>
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#include <keystore/keymaster_types.h>
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#include <map>
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#include <mutex>
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#include <utils/LruCache.h>
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#include <utils/StrongPointer.h>
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#include <vector>
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#include "confirmationui_rate_limiting.h"
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namespace keystore {
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using android::binder::Status;
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using android::hardware::confirmationui::V1_0::IConfirmationResultCallback;
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using ConfirmationResponseCode = android::hardware::confirmationui::V1_0::ResponseCode;
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class ConfirmationManager;
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class ConfirmationManager : public android::hardware::hidl_death_recipient,
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public IConfirmationResultCallback {
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public:
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explicit ConfirmationManager(android::IBinder::DeathRecipient* deathRecipient);
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// Calls into the confirmationui HAL to start a new prompt.
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//
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// Returns OperationPending if another application is already
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// showing a confirmation. Otherwise returns the return code from
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// the HAL.
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Status presentConfirmationPrompt(const android::sp<android::IBinder>& listener,
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const android::String16& promptText,
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const hidl_vec<uint8_t>& extraData,
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const android::String16& locale, int uiOptionsAsFlags,
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int32_t* aidl_return);
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// Calls into the confirmationui HAL to cancel displaying a
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// prompt.
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//
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// Returns OperatingPending if another application is showing a
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// confirmation. Otherwise returns the return code from the HAL.
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Status cancelConfirmationPrompt(const android::sp<android::IBinder>& listener,
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int32_t* aidl_return);
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// Checks if the confirmationUI HAL is available.
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Status isConfirmationPromptSupported(bool* aidl_return);
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// Gets the latest confirmation token received from the ConfirmationUI HAL.
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hidl_vec<uint8_t> getLatestConfirmationToken();
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// Called by KeyStoreService when a client binder has died.
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void binderDied(const android::wp<android::IBinder>& who);
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// hidl_death_recipient overrides:
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virtual void serviceDied(uint64_t cookie,
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const android::wp<android::hidl::base::V1_0::IBase>& who) override;
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// IConfirmationResultCallback overrides:
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android::hardware::Return<void> result(ConfirmationResponseCode responseCode,
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const hidl_vec<uint8_t>& dataThatWasConfirmed,
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const hidl_vec<uint8_t>& confirmationToken) override;
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private:
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friend class ConfirmationResultCallback;
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// Set rate limiting to not decrement on next abort and aborts
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// confirmationui.
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void cancelPrompt();
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void finalizeTransaction(ConfirmationResponseCode responseCode,
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hidl_vec<uint8_t> dataThatWasConfirmed);
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// This mutex protects all data below it.
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std::mutex mMutex;
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// The mCurrentListener and mCurrentConfirmationUI fields are set
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// if and only if a prompt is currently showing.
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android::sp<android::IBinder> mCurrentListener;
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android::sp<android::hardware::confirmationui::V1_0::IConfirmationUI> mCurrentConfirmationUI;
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android::IBinder::DeathRecipient* mDeathRecipient;
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hidl_vec<uint8_t> mLatestConfirmationToken;
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RateLimiting<> mRateLimiting;
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};
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} // namespace keystore
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#endif // KEYSTORE_CONFIRMATION_MANAGER_H_
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