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/*
* Copyright (C) 2015 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.
*/
#ifndef IGATEKEEPER_SERVICE_H_
#define IGATEKEEPER_SERVICE_H_
#include <binder/IInterface.h>
#include <binder/Parcel.h>
namespace android {
/*
* This must be kept manually in sync with frameworks/base's IGateKeeperService.aidl
*/
class IGateKeeperService : public IInterface {
public:
enum {
ENROLL = IBinder::FIRST_CALL_TRANSACTION + 0,
VERIFY = IBinder::FIRST_CALL_TRANSACTION + 1,
VERIFY_CHALLENGE = IBinder::FIRST_CALL_TRANSACTION + 2,
GET_SECURE_USER_ID = IBinder::FIRST_CALL_TRANSACTION + 3,
CLEAR_SECURE_USER_ID = IBinder::FIRST_CALL_TRANSACTION + 4,
};
enum {
GATEKEEPER_RESPONSE_OK = 0,
GATEKEEPER_RESPONSE_RETRY = 1,
GATEKEEPER_RESPONSE_ERROR = -1,
};
// DECLARE_META_INTERFACE - C++ client interface not needed
static const android::String16 descriptor;
virtual const android::String16& getInterfaceDescriptor() const;
IGateKeeperService() {}
virtual ~IGateKeeperService() {}
/**
* Enrolls a password with the GateKeeper. Returns 0 on success, negative on failure.
* Returns:
* - 0 on success
* - A timestamp T > 0 if the call has failed due to throttling and should not
* be reattempted until T milliseconds have elapsed
* - -1 on failure
*/
virtual int enroll(uint32_t uid,
const uint8_t *current_password_handle, uint32_t current_password_handle_length,
const uint8_t *current_password, uint32_t current_password_length,
const uint8_t *desired_password, uint32_t desired_password_length,
uint8_t **enrolled_password_handle, uint32_t *enrolled_password_handle_length) = 0;
/**
* Verifies a password previously enrolled with the GateKeeper.
* Returns:
* - 0 on success
* - A timestamp T > 0 if the call has failed due to throttling and should not
* be reattempted until T milliseconds have elapsed
* - -1 on failure
*/
virtual int verify(uint32_t uid, const uint8_t *enrolled_password_handle,
uint32_t enrolled_password_handle_length,
const uint8_t *provided_password, uint32_t provided_password_length,
bool *request_reenroll) = 0;
/**
* Verifies a password previously enrolled with the GateKeeper.
* Returns:
* - 0 on success
* - A timestamp T > 0 if the call has failed due to throttling and should not
* be reattempted until T milliseconds have elapsed
* - -1 on failure
*/
virtual int verifyChallenge(uint32_t uid, uint64_t challenge,
const uint8_t *enrolled_password_handle, uint32_t enrolled_password_handle_length,
const uint8_t *provided_password, uint32_t provided_password_length,
uint8_t **auth_token, uint32_t *auth_token_length, bool *request_reenroll) = 0;
/**
* Returns the secure user ID for the provided android user
*/
virtual uint64_t getSecureUserId(uint32_t uid) = 0;
/**
* Clears the secure user ID associated with the user.
*/
virtual void clearSecureUserId(uint32_t uid) = 0;
};
// ----------------------------------------------------------------------------
class BnGateKeeperService: public BnInterface<IGateKeeperService> {
public:
virtual status_t onTransact(uint32_t code, const Parcel& data, Parcel* reply,
uint32_t flags = 0);
};
} // namespace android
#endif
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