1 /* 2 * Copyright (C) 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 #include <string> 18 19 #include <android-base/file.h> 20 #include <android-base/test_utils.h> 21 #include <gtest/gtest.h> 22 #include <update_verifier/update_verifier.h> 23 24 class UpdateVerifierTest : public ::testing::Test { 25 protected: 26 void SetUp() override { 27 #if defined(PRODUCT_SUPPORTS_VERITY) || defined(BOARD_AVB_ENABLE) 28 verity_supported = true; 29 #else 30 verity_supported = false; 31 #endif 32 } 33 34 bool verity_supported; 35 }; 36 37 TEST_F(UpdateVerifierTest, verify_image_no_care_map) { 38 // Non-existing care_map is allowed. 39 ASSERT_TRUE(verify_image("/doesntexist")); 40 } 41 42 TEST_F(UpdateVerifierTest, verify_image_smoke) { 43 // This test relies on dm-verity support. 44 if (!verity_supported) { 45 GTEST_LOG_(INFO) << "Test skipped on devices without dm-verity support."; 46 return; 47 } 48 49 // The care map file can have only two or four lines. 50 TemporaryFile temp_file; 51 std::string content = "system\n2,0,1"; 52 ASSERT_TRUE(android::base::WriteStringToFile(content, temp_file.path)); 53 ASSERT_TRUE(verify_image(temp_file.path)); 54 55 // Leading and trailing newlines should be accepted. 56 ASSERT_TRUE(android::base::WriteStringToFile("\n" + content + "\n\n", temp_file.path)); 57 ASSERT_TRUE(verify_image(temp_file.path)); 58 } 59 60 TEST_F(UpdateVerifierTest, verify_image_wrong_lines) { 61 // The care map file can have only two or four lines. 62 TemporaryFile temp_file; 63 ASSERT_FALSE(verify_image(temp_file.path)); 64 65 ASSERT_TRUE(android::base::WriteStringToFile("line1", temp_file.path)); 66 ASSERT_FALSE(verify_image(temp_file.path)); 67 68 ASSERT_TRUE(android::base::WriteStringToFile("line1\nline2\nline3", temp_file.path)); 69 ASSERT_FALSE(verify_image(temp_file.path)); 70 } 71 72 TEST_F(UpdateVerifierTest, verify_image_malformed_care_map) { 73 // This test relies on dm-verity support. 74 if (!verity_supported) { 75 GTEST_LOG_(INFO) << "Test skipped on devices without dm-verity support."; 76 return; 77 } 78 79 TemporaryFile temp_file; 80 std::string content = "system\n2,1,0"; 81 ASSERT_TRUE(android::base::WriteStringToFile(content, temp_file.path)); 82 ASSERT_FALSE(verify_image(temp_file.path)); 83 } 84 85 TEST_F(UpdateVerifierTest, verify_image_legacy_care_map) { 86 // This test relies on dm-verity support. 87 if (!verity_supported) { 88 GTEST_LOG_(INFO) << "Test skipped on devices without dm-verity support."; 89 return; 90 } 91 92 TemporaryFile temp_file; 93 std::string content = "/dev/block/bootdevice/by-name/system\n2,1,0"; 94 ASSERT_TRUE(android::base::WriteStringToFile(content, temp_file.path)); 95 ASSERT_TRUE(verify_image(temp_file.path)); 96 } 97
