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/*
* Copyright (C) 2017 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.
*/
package android.hardware.oemlock@1.0;
/*
* The OEM lock prevents the bootloader from allowing the device to be flashed.
*
* Both the carrier and the device itself have a say as to whether OEM unlock is
* allowed and both must agree that is allowed in order for unlock to be
* possible.
*/
interface IOemLock {
/**
* Returns a vendor specific identifier of the HAL.
*
* The name returned must not be interpreted by the framework but must be
* passed to vendor code which may use it to identify the security protocol
* used by setOemUnlockAllowedByCarrier. This allows the vendor to identify
* the protocol without having to maintain a device-to-protocol mapping.
*
* @return name of the implementation.
*/
getName() generates (OemLockStatus status, string name);
/**
* Updates whether OEM unlock is allowed by the carrier.
*
* The implementation may require a vendor defined signature to prove the
* validity of this request in order to harden its security.
*
* @param allowed is the new value of the flag.
* @param signature to prove validity of this request or empty if not
* required.
* @return status is OK if the flag was successfully updated,
* INVALID_SIGNATURE if a signature is required but the wrong one
* was provided or FAILED if the update was otherwise unsuccessful.
*/
setOemUnlockAllowedByCarrier(bool allowed, vec<uint8_t> signature)
generates (OemLockSecureStatus status);
/**
* Returns whether OEM unlock is allowed by the carrier.
*
* @return status is OK if the flag was successfully read.
* @return allowed is the current state of the flag.
*/
isOemUnlockAllowedByCarrier() generates (OemLockStatus status, bool allowed);
/**
* Updates whether OEM unlock is allowed by the device.
*
* @param allowed is the new value of the flag.
* @return status is OK if the flag was successfully updated.
*/
setOemUnlockAllowedByDevice(bool allowed) generates (OemLockStatus status);
/**
* Returns whether OEM unlock ia allowed by the device.
*
* @return status is OK if the flag was successfully read.
* @return allowed is the current state of the flag.
*/
isOemUnlockAllowedByDevice() generates (OemLockStatus status, bool allowed);
};
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