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-rw-r--r--tests/unit/update_verifier_test.cpp219
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diff --git a/tests/unit/update_verifier_test.cpp b/tests/unit/update_verifier_test.cpp
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+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <update_verifier/update_verifier.h>
+
+#include <functional>
+#include <string>
+#include <unordered_map>
+#include <vector>
+
+#include <android-base/file.h>
+#include <android-base/properties.h>
+#include <android-base/strings.h>
+#include <google/protobuf/repeated_field.h>
+#include <gtest/gtest.h>
+
+#include "care_map.pb.h"
+
+using namespace std::string_literals;
+
+class UpdateVerifierTest : public ::testing::Test {
+ protected:
+ void SetUp() override {
+ std::string verity_mode = android::base::GetProperty("ro.boot.veritymode", "");
+ verity_supported = android::base::EqualsIgnoreCase(verity_mode, "enforcing");
+
+ care_map_prefix_ = care_map_dir_.path + "/care_map"s;
+ care_map_pb_ = care_map_dir_.path + "/care_map.pb"s;
+ care_map_txt_ = care_map_dir_.path + "/care_map.txt"s;
+ // Overrides the the care_map_prefix.
+ verifier_.set_care_map_prefix(care_map_prefix_);
+
+ property_id_ = "ro.build.fingerprint";
+ fingerprint_ = android::base::GetProperty(property_id_, "");
+ // Overrides the property_reader if we cannot read the given property on the device.
+ if (fingerprint_.empty()) {
+ fingerprint_ = "mock_fingerprint";
+ verifier_.set_property_reader([](const std::string& /* id */) { return "mock_fingerprint"; });
+ }
+ }
+
+ void TearDown() override {
+ unlink(care_map_pb_.c_str());
+ unlink(care_map_txt_.c_str());
+ }
+
+ // Returns a serialized string of the proto3 message according to the given partition info.
+ std::string ConstructProto(
+ std::vector<std::unordered_map<std::string, std::string>>& partitions) {
+ recovery_update_verifier::CareMap result;
+ for (const auto& partition : partitions) {
+ recovery_update_verifier::CareMap::PartitionInfo info;
+ if (partition.find("name") != partition.end()) {
+ info.set_name(partition.at("name"));
+ }
+ if (partition.find("ranges") != partition.end()) {
+ info.set_ranges(partition.at("ranges"));
+ }
+ if (partition.find("id") != partition.end()) {
+ info.set_id(partition.at("id"));
+ }
+ if (partition.find("fingerprint") != partition.end()) {
+ info.set_fingerprint(partition.at("fingerprint"));
+ }
+
+ *result.add_partitions() = info;
+ }
+
+ return result.SerializeAsString();
+ }
+
+ bool verity_supported;
+ UpdateVerifier verifier_;
+
+ TemporaryDir care_map_dir_;
+ std::string care_map_prefix_;
+ std::string care_map_pb_;
+ std::string care_map_txt_;
+
+ std::string property_id_;
+ std::string fingerprint_;
+};
+
+TEST_F(UpdateVerifierTest, verify_image_no_care_map) {
+ ASSERT_FALSE(verifier_.ParseCareMap());
+}
+
+TEST_F(UpdateVerifierTest, verify_image_text_format) {
+ // This test relies on dm-verity support.
+ if (!verity_supported) {
+ GTEST_LOG_(INFO) << "Test skipped on devices without dm-verity support.";
+ return;
+ }
+
+ std::string content = "system\n2,0,1";
+ ASSERT_TRUE(android::base::WriteStringToFile(content, care_map_txt_));
+ // CareMap in text format is no longer supported.
+ ASSERT_FALSE(verifier_.ParseCareMap());
+}
+
+TEST_F(UpdateVerifierTest, verify_image_empty_care_map) {
+ ASSERT_FALSE(verifier_.ParseCareMap());
+}
+
+TEST_F(UpdateVerifierTest, verify_image_protobuf_care_map_smoke) {
+ // This test relies on dm-verity support.
+ if (!verity_supported) {
+ GTEST_LOG_(INFO) << "Test skipped on devices without dm-verity support.";
+ return;
+ }
+
+ std::vector<std::unordered_map<std::string, std::string>> partitions = {
+ {
+ { "name", "system" },
+ { "ranges", "2,0,1" },
+ { "id", property_id_ },
+ { "fingerprint", fingerprint_ },
+ },
+ };
+
+ std::string proto = ConstructProto(partitions);
+ ASSERT_TRUE(android::base::WriteStringToFile(proto, care_map_pb_));
+ ASSERT_TRUE(verifier_.ParseCareMap());
+ ASSERT_TRUE(verifier_.VerifyPartitions());
+}
+
+TEST_F(UpdateVerifierTest, verify_image_protobuf_care_map_missing_name) {
+ // This test relies on dm-verity support.
+ if (!verity_supported) {
+ GTEST_LOG_(INFO) << "Test skipped on devices without dm-verity support.";
+ return;
+ }
+
+ std::vector<std::unordered_map<std::string, std::string>> partitions = {
+ {
+ { "ranges", "2,0,1" },
+ { "id", property_id_ },
+ { "fingerprint", fingerprint_ },
+ },
+ };
+
+ std::string proto = ConstructProto(partitions);
+ ASSERT_TRUE(android::base::WriteStringToFile(proto, care_map_pb_));
+ ASSERT_FALSE(verifier_.ParseCareMap());
+}
+
+TEST_F(UpdateVerifierTest, verify_image_protobuf_care_map_bad_ranges) {
+ // This test relies on dm-verity support.
+ if (!verity_supported) {
+ GTEST_LOG_(INFO) << "Test skipped on devices without dm-verity support.";
+ return;
+ }
+
+ std::vector<std::unordered_map<std::string, std::string>> partitions = {
+ {
+ { "name", "system" },
+ { "ranges", "3,0,1" },
+ { "id", property_id_ },
+ { "fingerprint", fingerprint_ },
+ },
+ };
+
+ std::string proto = ConstructProto(partitions);
+ ASSERT_TRUE(android::base::WriteStringToFile(proto, care_map_pb_));
+ ASSERT_FALSE(verifier_.ParseCareMap());
+}
+
+TEST_F(UpdateVerifierTest, verify_image_protobuf_empty_fingerprint) {
+ // This test relies on dm-verity support.
+ if (!verity_supported) {
+ GTEST_LOG_(INFO) << "Test skipped on devices without dm-verity support.";
+ return;
+ }
+
+ std::vector<std::unordered_map<std::string, std::string>> partitions = {
+ {
+ { "name", "system" },
+ { "ranges", "2,0,1" },
+ },
+ };
+
+ std::string proto = ConstructProto(partitions);
+ ASSERT_TRUE(android::base::WriteStringToFile(proto, care_map_pb_));
+ ASSERT_FALSE(verifier_.ParseCareMap());
+}
+
+TEST_F(UpdateVerifierTest, verify_image_protobuf_fingerprint_mismatch) {
+ // This test relies on dm-verity support.
+ if (!verity_supported) {
+ GTEST_LOG_(INFO) << "Test skipped on devices without dm-verity support.";
+ return;
+ }
+
+ std::vector<std::unordered_map<std::string, std::string>> partitions = {
+ {
+ { "name", "system" },
+ { "ranges", "2,0,1" },
+ { "id", property_id_ },
+ { "fingerprint", "unsupported_fingerprint" },
+ },
+ };
+
+ std::string proto = ConstructProto(partitions);
+ ASSERT_TRUE(android::base::WriteStringToFile(proto, care_map_pb_));
+ ASSERT_FALSE(verifier_.ParseCareMap());
+}
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