Song Pan | e24b80a | 2019-12-30 15:35:10 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2019 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.integrity.engine; |
| 18 | |
Omer Nebil Yaveroglu | d4c9af8 | 2020-01-24 19:36:02 +0000 | [diff] [blame] | 19 | import static com.google.common.truth.Truth.assertThat; |
| 20 | |
Song Pan | e24b80a | 2019-12-30 15:35:10 +0000 | [diff] [blame] | 21 | import static org.mockito.ArgumentMatchers.any; |
| 22 | import static org.mockito.Mockito.when; |
| 23 | |
| 24 | import android.content.integrity.AppInstallMetadata; |
Song Pan | 6a0fd8b | 2020-02-06 13:48:04 +0000 | [diff] [blame] | 25 | import android.content.integrity.IntegrityFormula; |
| 26 | import android.content.integrity.Rule; |
Song Pan | e24b80a | 2019-12-30 15:35:10 +0000 | [diff] [blame] | 27 | |
| 28 | import com.android.server.integrity.IntegrityFileManager; |
| 29 | import com.android.server.integrity.model.IntegrityCheckResult; |
| 30 | |
| 31 | import org.junit.Before; |
| 32 | import org.junit.Test; |
| 33 | import org.junit.runner.RunWith; |
| 34 | import org.junit.runners.JUnit4; |
| 35 | import org.mockito.Mock; |
| 36 | import org.mockito.MockitoAnnotations; |
| 37 | |
Song Pan | e24b80a | 2019-12-30 15:35:10 +0000 | [diff] [blame] | 38 | import java.util.Collections; |
| 39 | import java.util.HashMap; |
Song Pan | e24b80a | 2019-12-30 15:35:10 +0000 | [diff] [blame] | 40 | import java.util.Map; |
| 41 | |
| 42 | @RunWith(JUnit4.class) |
| 43 | public class RuleEvaluationEngineTest { |
| 44 | |
| 45 | private static final String INSTALLER_1 = "installer1"; |
| 46 | private static final String INSTALLER_1_CERT = "installer1_cert"; |
| 47 | private static final String INSTALLER_2 = "installer2"; |
| 48 | private static final String INSTALLER_2_CERT = "installer2_cert"; |
| 49 | |
| 50 | private static final String RANDOM_INSTALLER = "random"; |
| 51 | private static final String RANDOM_INSTALLER_CERT = "random_cert"; |
| 52 | |
Omer Nebil Yaveroglu | 15395f5 | 2020-01-22 12:14:44 +0000 | [diff] [blame] | 53 | @Mock |
| 54 | private IntegrityFileManager mIntegrityFileManager; |
Song Pan | e24b80a | 2019-12-30 15:35:10 +0000 | [diff] [blame] | 55 | |
| 56 | private RuleEvaluationEngine mEngine; |
| 57 | |
| 58 | @Before |
| 59 | public void setUp() throws Exception { |
| 60 | MockitoAnnotations.initMocks(this); |
| 61 | |
| 62 | mEngine = new RuleEvaluationEngine(mIntegrityFileManager); |
| 63 | |
Song Pan | 6a0fd8b | 2020-02-06 13:48:04 +0000 | [diff] [blame] | 64 | when(mIntegrityFileManager.readRules(any())).thenReturn(Collections.singletonList(new Rule( |
| 65 | IntegrityFormula.Installer.notAllowedByManifest(), Rule.DENY))); |
| 66 | |
| 67 | when(mIntegrityFileManager.initialized()).thenReturn(true); |
Song Pan | e24b80a | 2019-12-30 15:35:10 +0000 | [diff] [blame] | 68 | } |
| 69 | |
| 70 | @Test |
| 71 | public void testAllowedInstallers_empty() { |
Omer Nebil Yaveroglu | d4c9af8 | 2020-01-24 19:36:02 +0000 | [diff] [blame] | 72 | AppInstallMetadata appInstallMetadata1 = |
| 73 | getAppInstallMetadataBuilder() |
| 74 | .setInstallerName(INSTALLER_1) |
Omer Nebil Yaveroglu | b994372 | 2020-02-07 14:22:44 +0000 | [diff] [blame] | 75 | .setInstallerCertificates(Collections.singletonList(INSTALLER_1_CERT)) |
Omer Nebil Yaveroglu | d4c9af8 | 2020-01-24 19:36:02 +0000 | [diff] [blame] | 76 | .build(); |
| 77 | AppInstallMetadata appInstallMetadata2 = |
| 78 | getAppInstallMetadataBuilder() |
| 79 | .setInstallerName(INSTALLER_2) |
Omer Nebil Yaveroglu | b994372 | 2020-02-07 14:22:44 +0000 | [diff] [blame] | 80 | .setInstallerCertificates(Collections.singletonList(INSTALLER_2_CERT)) |
Omer Nebil Yaveroglu | d4c9af8 | 2020-01-24 19:36:02 +0000 | [diff] [blame] | 81 | .build(); |
| 82 | AppInstallMetadata appInstallMetadata3 = |
| 83 | getAppInstallMetadataBuilder() |
| 84 | .setInstallerName(RANDOM_INSTALLER) |
Omer Nebil Yaveroglu | b994372 | 2020-02-07 14:22:44 +0000 | [diff] [blame] | 85 | .setInstallerCertificates(Collections.singletonList(RANDOM_INSTALLER_CERT)) |
Omer Nebil Yaveroglu | d4c9af8 | 2020-01-24 19:36:02 +0000 | [diff] [blame] | 86 | .build(); |
| 87 | |
Song Pan | 6a0fd8b | 2020-02-06 13:48:04 +0000 | [diff] [blame] | 88 | assertThat(mEngine.evaluate(appInstallMetadata1).getEffect()) |
Omer Nebil Yaveroglu | d4c9af8 | 2020-01-24 19:36:02 +0000 | [diff] [blame] | 89 | .isEqualTo(IntegrityCheckResult.Effect.ALLOW); |
Song Pan | 6a0fd8b | 2020-02-06 13:48:04 +0000 | [diff] [blame] | 90 | assertThat(mEngine.evaluate(appInstallMetadata2).getEffect()) |
Omer Nebil Yaveroglu | d4c9af8 | 2020-01-24 19:36:02 +0000 | [diff] [blame] | 91 | .isEqualTo(IntegrityCheckResult.Effect.ALLOW); |
Song Pan | 6a0fd8b | 2020-02-06 13:48:04 +0000 | [diff] [blame] | 92 | assertThat(mEngine.evaluate(appInstallMetadata3).getEffect()) |
Omer Nebil Yaveroglu | d4c9af8 | 2020-01-24 19:36:02 +0000 | [diff] [blame] | 93 | .isEqualTo(IntegrityCheckResult.Effect.ALLOW); |
Song Pan | e24b80a | 2019-12-30 15:35:10 +0000 | [diff] [blame] | 94 | } |
| 95 | |
| 96 | @Test |
| 97 | public void testAllowedInstallers_oneElement() { |
| 98 | Map<String, String> allowedInstallers = |
| 99 | Collections.singletonMap(INSTALLER_1, INSTALLER_1_CERT); |
| 100 | |
Omer Nebil Yaveroglu | d4c9af8 | 2020-01-24 19:36:02 +0000 | [diff] [blame] | 101 | AppInstallMetadata appInstallMetadata1 = |
| 102 | getAppInstallMetadataBuilder() |
| 103 | .setInstallerName(INSTALLER_1) |
Omer Nebil Yaveroglu | b994372 | 2020-02-07 14:22:44 +0000 | [diff] [blame] | 104 | .setInstallerCertificates(Collections.singletonList(INSTALLER_1_CERT)) |
Song Pan | 6a0fd8b | 2020-02-06 13:48:04 +0000 | [diff] [blame] | 105 | .setAllowedInstallersAndCert(allowedInstallers) |
Omer Nebil Yaveroglu | d4c9af8 | 2020-01-24 19:36:02 +0000 | [diff] [blame] | 106 | .build(); |
Song Pan | 6a0fd8b | 2020-02-06 13:48:04 +0000 | [diff] [blame] | 107 | assertThat(mEngine.evaluate(appInstallMetadata1).getEffect()) |
Omer Nebil Yaveroglu | d4c9af8 | 2020-01-24 19:36:02 +0000 | [diff] [blame] | 108 | .isEqualTo(IntegrityCheckResult.Effect.ALLOW); |
| 109 | |
| 110 | AppInstallMetadata appInstallMetadata2 = |
| 111 | getAppInstallMetadataBuilder() |
| 112 | .setInstallerName(RANDOM_INSTALLER) |
Song Pan | 6a0fd8b | 2020-02-06 13:48:04 +0000 | [diff] [blame] | 113 | .setAllowedInstallersAndCert(allowedInstallers) |
Omer Nebil Yaveroglu | b994372 | 2020-02-07 14:22:44 +0000 | [diff] [blame] | 114 | .setInstallerCertificates(Collections.singletonList(INSTALLER_1_CERT)) |
Omer Nebil Yaveroglu | d4c9af8 | 2020-01-24 19:36:02 +0000 | [diff] [blame] | 115 | .build(); |
Song Pan | 6a0fd8b | 2020-02-06 13:48:04 +0000 | [diff] [blame] | 116 | assertThat(mEngine.evaluate(appInstallMetadata2).getEffect()) |
Omer Nebil Yaveroglu | d4c9af8 | 2020-01-24 19:36:02 +0000 | [diff] [blame] | 117 | .isEqualTo(IntegrityCheckResult.Effect.DENY); |
| 118 | |
| 119 | AppInstallMetadata appInstallMetadata3 = |
| 120 | getAppInstallMetadataBuilder() |
| 121 | .setInstallerName(INSTALLER_1) |
Song Pan | 6a0fd8b | 2020-02-06 13:48:04 +0000 | [diff] [blame] | 122 | .setAllowedInstallersAndCert(allowedInstallers) |
Omer Nebil Yaveroglu | b994372 | 2020-02-07 14:22:44 +0000 | [diff] [blame] | 123 | .setInstallerCertificates(Collections.singletonList(RANDOM_INSTALLER_CERT)) |
Omer Nebil Yaveroglu | d4c9af8 | 2020-01-24 19:36:02 +0000 | [diff] [blame] | 124 | .build(); |
Song Pan | 6a0fd8b | 2020-02-06 13:48:04 +0000 | [diff] [blame] | 125 | assertThat(mEngine.evaluate(appInstallMetadata3).getEffect()) |
Omer Nebil Yaveroglu | d4c9af8 | 2020-01-24 19:36:02 +0000 | [diff] [blame] | 126 | .isEqualTo(IntegrityCheckResult.Effect.DENY); |
| 127 | |
| 128 | AppInstallMetadata appInstallMetadata4 = |
| 129 | getAppInstallMetadataBuilder() |
| 130 | .setInstallerName(INSTALLER_1) |
Song Pan | 6a0fd8b | 2020-02-06 13:48:04 +0000 | [diff] [blame] | 131 | .setAllowedInstallersAndCert(allowedInstallers) |
Omer Nebil Yaveroglu | b994372 | 2020-02-07 14:22:44 +0000 | [diff] [blame] | 132 | .setInstallerCertificates(Collections.singletonList(RANDOM_INSTALLER_CERT)) |
Omer Nebil Yaveroglu | d4c9af8 | 2020-01-24 19:36:02 +0000 | [diff] [blame] | 133 | .build(); |
Song Pan | 6a0fd8b | 2020-02-06 13:48:04 +0000 | [diff] [blame] | 134 | assertThat(mEngine.evaluate(appInstallMetadata4).getEffect()) |
Omer Nebil Yaveroglu | d4c9af8 | 2020-01-24 19:36:02 +0000 | [diff] [blame] | 135 | .isEqualTo(IntegrityCheckResult.Effect.DENY); |
Song Pan | e24b80a | 2019-12-30 15:35:10 +0000 | [diff] [blame] | 136 | } |
| 137 | |
| 138 | @Test |
| 139 | public void testAllowedInstallers_multipleElement() { |
Song Pan | e24b80a | 2019-12-30 15:35:10 +0000 | [diff] [blame] | 140 | Map<String, String> allowedInstallers = new HashMap<>(2); |
| 141 | allowedInstallers.put(INSTALLER_1, INSTALLER_1_CERT); |
| 142 | allowedInstallers.put(INSTALLER_2, INSTALLER_2_CERT); |
| 143 | |
Omer Nebil Yaveroglu | d4c9af8 | 2020-01-24 19:36:02 +0000 | [diff] [blame] | 144 | AppInstallMetadata appInstallMetadata1 = |
| 145 | getAppInstallMetadataBuilder() |
| 146 | .setInstallerName(INSTALLER_1) |
Song Pan | 6a0fd8b | 2020-02-06 13:48:04 +0000 | [diff] [blame] | 147 | .setAllowedInstallersAndCert(allowedInstallers) |
Omer Nebil Yaveroglu | b994372 | 2020-02-07 14:22:44 +0000 | [diff] [blame] | 148 | .setInstallerCertificates(Collections.singletonList(INSTALLER_1_CERT)) |
Omer Nebil Yaveroglu | d4c9af8 | 2020-01-24 19:36:02 +0000 | [diff] [blame] | 149 | .build(); |
Song Pan | 6a0fd8b | 2020-02-06 13:48:04 +0000 | [diff] [blame] | 150 | assertThat(mEngine.evaluate(appInstallMetadata1).getEffect()) |
Omer Nebil Yaveroglu | d4c9af8 | 2020-01-24 19:36:02 +0000 | [diff] [blame] | 151 | .isEqualTo(IntegrityCheckResult.Effect.ALLOW); |
| 152 | |
| 153 | AppInstallMetadata appInstallMetadata2 = |
| 154 | getAppInstallMetadataBuilder() |
| 155 | .setInstallerName(INSTALLER_2) |
Song Pan | 6a0fd8b | 2020-02-06 13:48:04 +0000 | [diff] [blame] | 156 | .setAllowedInstallersAndCert(allowedInstallers) |
Omer Nebil Yaveroglu | b994372 | 2020-02-07 14:22:44 +0000 | [diff] [blame] | 157 | .setInstallerCertificates(Collections.singletonList(INSTALLER_2_CERT)) |
Omer Nebil Yaveroglu | d4c9af8 | 2020-01-24 19:36:02 +0000 | [diff] [blame] | 158 | .build(); |
Song Pan | 6a0fd8b | 2020-02-06 13:48:04 +0000 | [diff] [blame] | 159 | assertThat(mEngine.evaluate(appInstallMetadata2).getEffect()) |
Omer Nebil Yaveroglu | d4c9af8 | 2020-01-24 19:36:02 +0000 | [diff] [blame] | 160 | .isEqualTo(IntegrityCheckResult.Effect.ALLOW); |
| 161 | |
| 162 | AppInstallMetadata appInstallMetadata3 = |
| 163 | getAppInstallMetadataBuilder() |
| 164 | .setInstallerName(INSTALLER_1) |
Song Pan | 6a0fd8b | 2020-02-06 13:48:04 +0000 | [diff] [blame] | 165 | .setAllowedInstallersAndCert(allowedInstallers) |
Omer Nebil Yaveroglu | b994372 | 2020-02-07 14:22:44 +0000 | [diff] [blame] | 166 | .setInstallerCertificates(Collections.singletonList(INSTALLER_2_CERT)) |
Omer Nebil Yaveroglu | d4c9af8 | 2020-01-24 19:36:02 +0000 | [diff] [blame] | 167 | .build(); |
Song Pan | 6a0fd8b | 2020-02-06 13:48:04 +0000 | [diff] [blame] | 168 | assertThat(mEngine.evaluate(appInstallMetadata3).getEffect()) |
Omer Nebil Yaveroglu | d4c9af8 | 2020-01-24 19:36:02 +0000 | [diff] [blame] | 169 | .isEqualTo(IntegrityCheckResult.Effect.DENY); |
| 170 | |
| 171 | AppInstallMetadata appInstallMetadata4 = |
| 172 | getAppInstallMetadataBuilder() |
| 173 | .setInstallerName(INSTALLER_2) |
Song Pan | 6a0fd8b | 2020-02-06 13:48:04 +0000 | [diff] [blame] | 174 | .setAllowedInstallersAndCert(allowedInstallers) |
Omer Nebil Yaveroglu | b994372 | 2020-02-07 14:22:44 +0000 | [diff] [blame] | 175 | .setInstallerCertificates(Collections.singletonList(INSTALLER_1_CERT)) |
Omer Nebil Yaveroglu | d4c9af8 | 2020-01-24 19:36:02 +0000 | [diff] [blame] | 176 | .build(); |
Song Pan | 6a0fd8b | 2020-02-06 13:48:04 +0000 | [diff] [blame] | 177 | assertThat(mEngine.evaluate(appInstallMetadata4).getEffect()) |
Omer Nebil Yaveroglu | d4c9af8 | 2020-01-24 19:36:02 +0000 | [diff] [blame] | 178 | .isEqualTo(IntegrityCheckResult.Effect.DENY); |
Song Pan | e24b80a | 2019-12-30 15:35:10 +0000 | [diff] [blame] | 179 | } |
| 180 | |
| 181 | /** Returns a builder with all fields filled with some dummy data. */ |
| 182 | private AppInstallMetadata.Builder getAppInstallMetadataBuilder() { |
| 183 | return new AppInstallMetadata.Builder() |
| 184 | .setPackageName("abc") |
Omer Nebil Yaveroglu | b994372 | 2020-02-07 14:22:44 +0000 | [diff] [blame] | 185 | .setAppCertificates(Collections.singletonList("abc")) |
| 186 | .setInstallerCertificates(Collections.singletonList("abc")) |
Song Pan | e24b80a | 2019-12-30 15:35:10 +0000 | [diff] [blame] | 187 | .setInstallerName("abc") |
| 188 | .setVersionCode(-1) |
| 189 | .setIsPreInstalled(true); |
| 190 | } |
| 191 | } |