1 /* 2 * Copyright 2017 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 com.android.server.wifi.hotspot2; 18 19 import android.util.Log; 20 21 import java.io.IOException; 22 import java.security.KeyStore; 23 import java.security.KeyStoreException; 24 import java.security.NoSuchAlgorithmException; 25 import java.security.cert.CertificateException; 26 import java.security.cert.X509Certificate; 27 import java.util.Set; 28 29 /** 30 * WFA Keystore 31 */ 32 public class WfaKeyStore { 33 private static final String TAG = "PasspointWfaKeyStore"; 34 /* package */ static final String DEFAULT_WFA_CERT_DIR = 35 "/apex/com.android.wifi/etc/security/cacerts_wfa"; 36 37 private boolean mVerboseLoggingEnabled = false; 38 private KeyStore mKeyStore = null; 39 40 /** 41 * Loads the keystore with root certificates 42 */ load()43 public void load() { 44 if (mKeyStore != null) { 45 return; 46 } 47 int index = 0; 48 try { 49 mKeyStore = KeyStore.getInstance(KeyStore.getDefaultType()); 50 mKeyStore.load(null, null); 51 Set<X509Certificate> certs = WfaCertBuilder.loadCertsFromDisk(DEFAULT_WFA_CERT_DIR); 52 for (X509Certificate cert : certs) { 53 mKeyStore.setCertificateEntry(String.format("%d", index), cert); 54 index++; 55 } 56 if (index <= 0) { 57 Log.wtf(TAG, "No certs loaded"); 58 } 59 } catch (KeyStoreException | CertificateException | NoSuchAlgorithmException 60 | IOException e) { 61 e.printStackTrace(); 62 } 63 } 64 65 /** 66 * Returns the underlying keystore object 67 * @return KeyStore Underlying keystore object created 68 */ get()69 public KeyStore get() { 70 return mKeyStore; 71 } 72 } 73