1 /* 2 * Copyright 2021, The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.security.metrics; 18 19 import android.security.metrics.KeystoreAtom; 20 import android.security.metrics.AtomID; 21 22 /** 23 * IKeystoreMetrics interface exposes the method for system server to pull metrics from keystore. 24 * @hide 25 */ 26 interface IKeystoreMetrics { 27 /** 28 * Allows the metrics routing proxy to pull the metrics from keystore. 29 * 30 * @return an array of KeystoreAtom objects with the atomID. There can be multiple atom objects 31 * for the same atomID, encapsulating different combinations of values for the atom fields. 32 * If there is no atom object found for the atomID in the metrics store, an empty array is 33 * returned. 34 * 35 * Callers require 'PullMetrics' permission. 36 * 37 * @param atomID - ID of the atom to be pulled. 38 * 39 * Errors are reported as service specific errors. 40 */ pullMetrics(in AtomID atomID)41 KeystoreAtom[] pullMetrics(in AtomID atomID); 42 }