Pavel Maltsev | c07a96d | 2017-10-31 15:34:16 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2018 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.net; |
| 18 | |
| 19 | import static org.junit.Assert.assertEquals; |
| 20 | import static org.junit.Assert.assertNotNull; |
| 21 | import static org.junit.Assert.fail; |
| 22 | |
| 23 | import android.net.IpConfiguration; |
| 24 | import android.net.IpConfiguration.IpAssignment; |
| 25 | import android.net.IpConfiguration.ProxySettings; |
| 26 | import android.net.LinkAddress; |
| 27 | import android.net.NetworkUtils; |
| 28 | import android.net.ProxyInfo; |
| 29 | import android.net.StaticIpConfiguration; |
| 30 | import android.support.test.runner.AndroidJUnit4; |
| 31 | import android.util.ArrayMap; |
| 32 | |
| 33 | import org.junit.Test; |
| 34 | import org.junit.runner.RunWith; |
| 35 | |
| 36 | import java.io.ByteArrayInputStream; |
| 37 | import java.io.ByteArrayOutputStream; |
| 38 | import java.io.DataOutputStream; |
| 39 | import java.io.IOException; |
| 40 | import java.io.InputStream; |
| 41 | |
| 42 | /** |
| 43 | * Unit tests for {@link IpConfigStore} |
| 44 | */ |
| 45 | @RunWith(AndroidJUnit4.class) |
| 46 | public class IpConfigStoreTest { |
| 47 | |
| 48 | @Test |
| 49 | public void backwardCompatibility2to3() throws IOException { |
| 50 | final int KEY_CONFIG = 17; |
| 51 | ByteArrayOutputStream byteStream = new ByteArrayOutputStream(); |
| 52 | DataOutputStream outputStream = new DataOutputStream(byteStream); |
| 53 | |
| 54 | IpConfiguration expectedConfig = new IpConfiguration(IpAssignment.DHCP, |
| 55 | ProxySettings.NONE, null, null); |
| 56 | |
| 57 | // Emulate writing to old format. |
| 58 | writeDhcpConfigV2(outputStream, KEY_CONFIG, expectedConfig); |
| 59 | |
| 60 | InputStream in = new ByteArrayInputStream(byteStream.toByteArray()); |
| 61 | ArrayMap<String, IpConfiguration> configurations = IpConfigStore.readIpConfigurations(in); |
| 62 | |
| 63 | assertNotNull(configurations); |
| 64 | assertEquals(1, configurations.size()); |
| 65 | IpConfiguration actualConfig = configurations.get(String.valueOf(KEY_CONFIG)); |
| 66 | assertNotNull(actualConfig); |
| 67 | assertEquals(expectedConfig, actualConfig); |
| 68 | } |
| 69 | |
| 70 | @Test |
| 71 | public void staticIpMultiNetworks() throws Exception { |
| 72 | final String IFACE_1 = "eth0"; |
| 73 | final String IFACE_2 = "eth1"; |
| 74 | final String IP_ADDR_1 = "192.168.1.10/24"; |
| 75 | final String IP_ADDR_2 = "192.168.1.20/24"; |
| 76 | final String DNS_IP_ADDR_1 = "1.2.3.4"; |
| 77 | final String DNS_IP_ADDR_2 = "5.6.7.8"; |
| 78 | |
| 79 | StaticIpConfiguration staticIpConfiguration = new StaticIpConfiguration(); |
| 80 | staticIpConfiguration.ipAddress = new LinkAddress(IP_ADDR_1); |
| 81 | staticIpConfiguration.dnsServers.add(NetworkUtils.numericToInetAddress(DNS_IP_ADDR_1)); |
| 82 | staticIpConfiguration.dnsServers.add(NetworkUtils.numericToInetAddress(DNS_IP_ADDR_2)); |
| 83 | |
| 84 | ProxyInfo proxyInfo = new ProxyInfo("10.10.10.10", 88, "host1,host2"); |
| 85 | |
| 86 | IpConfiguration expectedConfig1 = new IpConfiguration(IpAssignment.STATIC, |
| 87 | ProxySettings.STATIC, staticIpConfiguration, proxyInfo); |
| 88 | IpConfiguration expectedConfig2 = new IpConfiguration(expectedConfig1); |
| 89 | expectedConfig2.getStaticIpConfiguration().ipAddress = new LinkAddress(IP_ADDR_2); |
| 90 | |
| 91 | ArrayMap<String, IpConfiguration> expectedNetworks = new ArrayMap<>(); |
| 92 | expectedNetworks.put(IFACE_1, expectedConfig1); |
| 93 | expectedNetworks.put(IFACE_2, expectedConfig2); |
| 94 | |
| 95 | MockedDelayedDiskWrite writer = new MockedDelayedDiskWrite(); |
| 96 | IpConfigStore store = new IpConfigStore(writer); |
| 97 | store.writeIpConfigurations("file/path/not/used/", expectedNetworks); |
| 98 | |
| 99 | InputStream in = new ByteArrayInputStream(writer.byteStream.toByteArray()); |
| 100 | ArrayMap<String, IpConfiguration> actualNetworks = IpConfigStore.readIpConfigurations(in); |
| 101 | assertNotNull(actualNetworks); |
| 102 | assertEquals(2, actualNetworks.size()); |
| 103 | assertEquals(expectedNetworks.get(IFACE_1), actualNetworks.get(IFACE_1)); |
| 104 | assertEquals(expectedNetworks.get(IFACE_2), actualNetworks.get(IFACE_2)); |
| 105 | } |
| 106 | |
| 107 | // This is simplified snapshot of code that was used to store values in V2 format (key as int). |
| 108 | private static void writeDhcpConfigV2(DataOutputStream out, int configKey, |
| 109 | IpConfiguration config) throws IOException { |
| 110 | out.writeInt(2); // VERSION 2 |
| 111 | switch (config.ipAssignment) { |
| 112 | case DHCP: |
| 113 | out.writeUTF("ipAssignment"); |
| 114 | out.writeUTF(config.ipAssignment.toString()); |
| 115 | break; |
| 116 | default: |
| 117 | fail("Not supported in test environment"); |
| 118 | } |
| 119 | |
| 120 | out.writeUTF("id"); |
| 121 | out.writeInt(configKey); |
| 122 | out.writeUTF("eos"); |
| 123 | } |
| 124 | |
| 125 | /** Synchronously writes into given byte steam */ |
| 126 | private static class MockedDelayedDiskWrite extends DelayedDiskWrite { |
| 127 | final ByteArrayOutputStream byteStream = new ByteArrayOutputStream(); |
| 128 | |
| 129 | @Override |
| 130 | public void write(String filePath, Writer w) { |
| 131 | DataOutputStream outputStream = new DataOutputStream(byteStream); |
| 132 | |
| 133 | try { |
| 134 | w.onWriteCalled(outputStream); |
| 135 | } catch (IOException e) { |
| 136 | fail(); |
| 137 | } |
| 138 | } |
| 139 | } |
| 140 | } |