/**
 * Copyright (C) 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.
 */

package android.hardware.drm@1.4;

import @1.2::Status;

enum LogPriority : uint32_t {
    UNKNOWN,
    DEFAULT,
    VERBOSE,
    DEBUG,
    INFO,
    WARN,
    ERROR,
    FATAL,
};

/**
 * Returned by getLogMessages to report error diagnostics to the
 * app.
 *
 * The |message| field is for informational purposes only, and
 * NOT meant to be parsed programmatically when handling errors.
 * For programmatic error handling, please check the return |Status|
 * of APIs instead.
 */
struct LogMessage {
  /**
   * Epoch time in milliseconds.
   */
  int64_t timeMs;
  LogPriority priority;
  string message;
};

enum Status : @1.2::Status {
    /**
     * queueSecureInput buffer called with 0 subsamples.
     */
    CANNOT_DECRYPT_ZERO_SUBSAMPLES,
    /**
     * An error happened within the crypto library used by the drm plugin.
     */
    CRYPTO_LIBRARY_ERROR,
    /**
     * Non-specific error reported by the device OEM subsystem.
     */
    GENERAL_OEM_ERROR,
    /**
     * Unexpected internal failure in the drm/crypto plugin.
     */
    GENERAL_PLUGIN_ERROR,
    /**
     * The init data parameter passed to getKeyRequest is empty or invalid.
     */
    INIT_DATA_INVALID,
    /**
     * Either the key was not loaded from the license before attempting the
     * operation, or the key ID parameter provided by the app is incorrect.
     */
    KEY_NOT_LOADED,
    /**
     * The license response was empty, fields are missing or otherwise unable
     * to be parsed.
     */
    LICENSE_PARSE_ERROR,
    /**
     * The operation (e.g. to renew or persist a license) is prohibited by the
     * license policy.
     */
    LICENSE_POLICY_ERROR,
    /**
     * Failed to generate a release request because a field in the stored
     * license is empty or malformed.
     */
    LICENSE_RELEASE_ERROR,
    /**
     * The license server detected an error in the license request.
     */
    LICENSE_REQUEST_REJECTED,
    /**
     * Failed to restore an offline license because a field is empty or
     * malformed.
     */
    LICENSE_RESTORE_ERROR,
    /**
     * License is in an invalid state for the attempted operation.
     */
    LICENSE_STATE_ERROR,
    /**
     * Certificate is malformed or is of the wrong type.
     */
    MALFORMED_CERTIFICATE,
    /**
     * Failure in the media framework.
     */
    MEDIA_FRAMEWORK_ERROR,
    /**
     * Certificate has not been set.
     */
    MISSING_CERTIFICATE,
    /**
     * There was an error loading the provisioned certificate.
     */
    PROVISIONING_CERTIFICATE_ERROR,
    /**
     * Required steps where not performed before provisioning was attempted.
     */
    PROVISIONING_CONFIGURATION_ERROR,
    /**
     * The provisioning response was empty, fields are missing or otherwise
     * unable to be parsed.
     */
    PROVISIONING_PARSE_ERROR,
    /**
     * The provisioning server detected an error in the provisioning request.
     */
    PROVISIONING_REQUEST_REJECTED,
    /**
     * Provisioning failed in a way that is likely to succeed on a subsequent
     * attempt.
     */
    RETRYABLE_PROVISIONING_ERROR,
    /**
     * Failed to generate a secure stop request because a field in the stored
     * license is empty or malformed.
     */
    SECURE_STOP_RELEASE_ERROR,
    /**
     * The plugin was unable to read data from the filesystem.
     */
    STORAGE_READ_FAILURE,
    /**
     * The plugin was unable to write data to the filesystem.
     */
    STORAGE_WRITE_FAILURE,
};