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authorTao Bao <tbao@google.com>2017-04-18 01:46:05 +0200
committerTao Bao <tbao@google.com>2017-04-19 05:35:29 +0200
commita233a89d99b673eccaf072f9d0f452afa1c725c7 (patch)
tree0029ba36c73ef80caa31196d899dc0a7e3ed1e94
parentFix the double free in verify_package_compatibility(). (diff)
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Diffstat (limited to '')
-rw-r--r--install.cpp162
-rw-r--r--private/install.h27
-rw-r--r--tests/Android.mk5
-rw-r--r--tests/component/install_test.cpp87
4 files changed, 199 insertions, 82 deletions
diff --git a/install.cpp b/install.cpp
index 6dcd3565e..4fb809996 100644
--- a/install.cpp
+++ b/install.cpp
@@ -57,9 +57,6 @@
using namespace std::chrono_literals;
-#define ASSUMED_UPDATE_BINARY_NAME "META-INF/com/google/android/update-binary"
-static constexpr const char* AB_OTA_PAYLOAD_PROPERTIES = "payload_properties.txt";
-static constexpr const char* AB_OTA_PAYLOAD = "payload.bin";
#define PUBLIC_KEYS_FILE "/res/keys"
static constexpr const char* METADATA_PATH = "META-INF/com/android/metadata";
static constexpr const char* UNCRYPT_STATUS = "/cache/recovery/uncrypt_status";
@@ -136,13 +133,11 @@ static void read_source_target_build(ZipArchiveHandle zip, std::vector<std::stri
}
}
-// Extract the update binary from the open zip archive |zip| located at |path|
-// and store into |cmd| the command line that should be called. The |status_fd|
-// is the file descriptor the child process should use to report back the
-// progress of the update.
-static int
-update_binary_command(const char* path, ZipArchiveHandle zip, int retry_count,
- int status_fd, std::vector<std::string>* cmd);
+// Extract the update binary from the open zip archive |zip| located at |path| and store into |cmd|
+// the command line that should be called. The |status_fd| is the file descriptor the child process
+// should use to report back the progress of the update.
+int update_binary_command(const std::string& path, ZipArchiveHandle zip, int retry_count,
+ int status_fd, std::vector<std::string>* cmd);
#ifdef AB_OTA_UPDATER
@@ -224,87 +219,90 @@ static int check_newer_ab_build(ZipArchiveHandle zip) {
return 0;
}
-static int
-update_binary_command(const char* path, ZipArchiveHandle zip, int retry_count,
- int status_fd, std::vector<std::string>* cmd)
-{
- int ret = check_newer_ab_build(zip);
- if (ret) {
- return ret;
- }
+int update_binary_command(const std::string& path, ZipArchiveHandle zip, int retry_count,
+ int status_fd, std::vector<std::string>* cmd) {
+ CHECK(cmd != nullptr);
+ int ret = check_newer_ab_build(zip);
+ if (ret != 0) {
+ return ret;
+ }
- // For A/B updates we extract the payload properties to a buffer and obtain
- // the RAW payload offset in the zip file.
- ZipString property_name(AB_OTA_PAYLOAD_PROPERTIES);
- ZipEntry properties_entry;
- if (FindEntry(zip, property_name, &properties_entry) != 0) {
- LOG(ERROR) << "Can't find " << AB_OTA_PAYLOAD_PROPERTIES;
- return INSTALL_CORRUPT;
- }
- std::vector<uint8_t> payload_properties(
- properties_entry.uncompressed_length);
- if (ExtractToMemory(zip, &properties_entry, payload_properties.data(),
- properties_entry.uncompressed_length) != 0) {
- LOG(ERROR) << "Can't extract " << AB_OTA_PAYLOAD_PROPERTIES;
- return INSTALL_CORRUPT;
- }
+ // For A/B updates we extract the payload properties to a buffer and obtain the RAW payload offset
+ // in the zip file.
+ static constexpr const char* AB_OTA_PAYLOAD_PROPERTIES = "payload_properties.txt";
+ ZipString property_name(AB_OTA_PAYLOAD_PROPERTIES);
+ ZipEntry properties_entry;
+ if (FindEntry(zip, property_name, &properties_entry) != 0) {
+ LOG(ERROR) << "Failed to find " << AB_OTA_PAYLOAD_PROPERTIES;
+ return INSTALL_CORRUPT;
+ }
+ uint32_t properties_entry_length = properties_entry.uncompressed_length;
+ std::vector<uint8_t> payload_properties(properties_entry_length);
+ int32_t err =
+ ExtractToMemory(zip, &properties_entry, payload_properties.data(), properties_entry_length);
+ if (err != 0) {
+ LOG(ERROR) << "Failed to extract " << AB_OTA_PAYLOAD_PROPERTIES << ": " << ErrorCodeString(err);
+ return INSTALL_CORRUPT;
+ }
- ZipString payload_name(AB_OTA_PAYLOAD);
- ZipEntry payload_entry;
- if (FindEntry(zip, payload_name, &payload_entry) != 0) {
- LOG(ERROR) << "Can't find " << AB_OTA_PAYLOAD;
- return INSTALL_CORRUPT;
- }
- long payload_offset = payload_entry.offset;
- *cmd = {
- "/sbin/update_engine_sideload",
- android::base::StringPrintf("--payload=file://%s", path),
- android::base::StringPrintf("--offset=%ld", payload_offset),
- "--headers=" + std::string(payload_properties.begin(),
- payload_properties.end()),
- android::base::StringPrintf("--status_fd=%d", status_fd),
- };
- return 0;
+ static constexpr const char* AB_OTA_PAYLOAD = "payload.bin";
+ ZipString payload_name(AB_OTA_PAYLOAD);
+ ZipEntry payload_entry;
+ if (FindEntry(zip, payload_name, &payload_entry) != 0) {
+ LOG(ERROR) << "Failed to find " << AB_OTA_PAYLOAD;
+ return INSTALL_CORRUPT;
+ }
+ long payload_offset = payload_entry.offset;
+ *cmd = {
+ "/sbin/update_engine_sideload",
+ "--payload=file://" + path,
+ android::base::StringPrintf("--offset=%ld", payload_offset),
+ "--headers=" + std::string(payload_properties.begin(), payload_properties.end()),
+ android::base::StringPrintf("--status_fd=%d", status_fd),
+ };
+ return 0;
}
#else // !AB_OTA_UPDATER
-static int
-update_binary_command(const char* path, ZipArchiveHandle zip, int retry_count,
- int status_fd, std::vector<std::string>* cmd)
-{
- // On traditional updates we extract the update binary from the package.
- ZipString binary_name(ASSUMED_UPDATE_BINARY_NAME);
- ZipEntry binary_entry;
- if (FindEntry(zip, binary_name, &binary_entry) != 0) {
- return INSTALL_CORRUPT;
- }
+int update_binary_command(const std::string& path, ZipArchiveHandle zip, int retry_count,
+ int status_fd, std::vector<std::string>* cmd) {
+ CHECK(cmd != nullptr);
- const char* binary = "/tmp/update_binary";
- unlink(binary);
- int fd = creat(binary, 0755);
- if (fd < 0) {
- PLOG(ERROR) << "Can't make " << binary;
- return INSTALL_ERROR;
- }
- int error = ExtractEntryToFile(zip, &binary_entry, fd);
- close(fd);
+ // On traditional updates we extract the update binary from the package.
+ static constexpr const char* UPDATE_BINARY_NAME = "META-INF/com/google/android/update-binary";
+ ZipString binary_name(UPDATE_BINARY_NAME);
+ ZipEntry binary_entry;
+ if (FindEntry(zip, binary_name, &binary_entry) != 0) {
+ LOG(ERROR) << "Failed to find update binary " << UPDATE_BINARY_NAME;
+ return INSTALL_CORRUPT;
+ }
- if (error != 0) {
- LOG(ERROR) << "Can't copy " << ASSUMED_UPDATE_BINARY_NAME
- << " : " << ErrorCodeString(error);
- return INSTALL_ERROR;
- }
+ const char* binary = "/tmp/update_binary";
+ unlink(binary);
+ int fd = creat(binary, 0755);
+ if (fd == -1) {
+ PLOG(ERROR) << "Failed to create " << binary;
+ return INSTALL_ERROR;
+ }
- *cmd = {
- binary,
- EXPAND(RECOVERY_API_VERSION), // defined in Android.mk
- std::to_string(status_fd),
- path,
- };
- if (retry_count > 0)
- cmd->push_back("retry");
- return 0;
+ int32_t error = ExtractEntryToFile(zip, &binary_entry, fd);
+ close(fd);
+ if (error != 0) {
+ LOG(ERROR) << "Failed to extract " << UPDATE_BINARY_NAME << ": " << ErrorCodeString(error);
+ return INSTALL_ERROR;
+ }
+
+ *cmd = {
+ binary,
+ EXPAND(RECOVERY_API_VERSION), // defined in Android.mk
+ std::to_string(status_fd),
+ path,
+ };
+ if (retry_count > 0) {
+ cmd->push_back("retry");
+ }
+ return 0;
}
#endif // !AB_OTA_UPDATER
diff --git a/private/install.h b/private/install.h
new file mode 100644
index 000000000..12d303b01
--- /dev/null
+++ b/private/install.h
@@ -0,0 +1,27 @@
+/*
+ * 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.
+ */
+
+// Private headers exposed for testing purpose only.
+
+#pragma once
+
+#include <string>
+#include <vector>
+
+#include <ziparchive/zip_archive.h>
+
+int update_binary_command(const std::string& path, ZipArchiveHandle zip, int retry_count,
+ int status_fd, std::vector<std::string>* cmd);
diff --git a/tests/Android.mk b/tests/Android.mk
index 1e433a76e..22a8efcbb 100644
--- a/tests/Android.mk
+++ b/tests/Android.mk
@@ -86,6 +86,11 @@ LOCAL_CFLAGS := \
-D_FILE_OFFSET_BITS=64
LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
+
+ifeq ($(AB_OTA_UPDATER),true)
+LOCAL_CFLAGS += -DAB_OTA_UPDATER=1
+endif
+
LOCAL_MODULE := recovery_component_test
LOCAL_C_INCLUDES := bootable/recovery
LOCAL_SRC_FILES := \
diff --git a/tests/component/install_test.cpp b/tests/component/install_test.cpp
index 3b6fbc301..fd3b28b07 100644
--- a/tests/component/install_test.cpp
+++ b/tests/component/install_test.cpp
@@ -16,12 +16,18 @@
#include <stdio.h>
+#include <string>
+#include <vector>
+
+#include <android-base/properties.h>
+#include <android-base/strings.h>
#include <android-base/test_utils.h>
#include <gtest/gtest.h>
#include <ziparchive/zip_archive.h>
#include <ziparchive/zip_writer.h>
#include "install.h"
+#include "private/install.h"
TEST(InstallTest, verify_package_compatibility_no_entry) {
TemporaryFile temp_file;
@@ -55,3 +61,84 @@ TEST(InstallTest, verify_package_compatibility_invalid_entry) {
ASSERT_FALSE(verify_package_compatibility(zip));
CloseArchive(zip);
}
+
+TEST(InstallTest, update_binary_command_smoke) {
+#ifdef AB_OTA_UPDATER
+ TemporaryFile temp_file;
+ FILE* zip_file = fdopen(temp_file.fd, "w");
+ ZipWriter writer(zip_file);
+ ASSERT_EQ(0, writer.StartEntry("payload.bin", kCompressStored));
+ ASSERT_EQ(0, writer.FinishEntry());
+ ASSERT_EQ(0, writer.StartEntry("payload_properties.txt", kCompressStored));
+ const std::string properties = "some_properties";
+ ASSERT_EQ(0, writer.WriteBytes(properties.data(), properties.size()));
+ ASSERT_EQ(0, writer.FinishEntry());
+ // A metadata entry is mandatory.
+ ASSERT_EQ(0, writer.StartEntry("META-INF/com/android/metadata", kCompressStored));
+ std::string device = android::base::GetProperty("ro.product.device", "");
+ ASSERT_NE("", device);
+ std::string timestamp = android::base::GetProperty("ro.build.date.utc", "");
+ ASSERT_NE("", timestamp);
+ std::string metadata = android::base::Join(
+ std::vector<std::string>{
+ "ota-type=AB", "pre-device=" + device, "post-timestamp=" + timestamp,
+ },
+ "\n");
+ ASSERT_EQ(0, writer.WriteBytes(metadata.data(), metadata.size()));
+ ASSERT_EQ(0, writer.FinishEntry());
+ ASSERT_EQ(0, writer.Finish());
+ ASSERT_EQ(0, fclose(zip_file));
+
+ ZipArchiveHandle zip;
+ ASSERT_EQ(0, OpenArchive(temp_file.path, &zip));
+ int status_fd = 10;
+ std::string path = "/path/to/update.zip";
+ std::vector<std::string> cmd;
+ ASSERT_EQ(0, update_binary_command(path, zip, 0, status_fd, &cmd));
+ ASSERT_EQ("/sbin/update_engine_sideload", cmd[0]);
+ ASSERT_EQ("--payload=file://" + path, cmd[1]);
+ ASSERT_EQ("--headers=" + properties, cmd[3]);
+ ASSERT_EQ("--status_fd=" + std::to_string(status_fd), cmd[4]);
+ CloseArchive(zip);
+#else
+ // Cannot test update_binary_command() because it tries to extract update-binary to /tmp.
+ GTEST_LOG_(INFO) << "Test skipped on non-A/B device.";
+#endif // AB_OTA_UPDATER
+}
+
+TEST(InstallTest, update_binary_command_invalid) {
+#ifdef AB_OTA_UPDATER
+ TemporaryFile temp_file;
+ FILE* zip_file = fdopen(temp_file.fd, "w");
+ ZipWriter writer(zip_file);
+ // Missing payload_properties.txt.
+ ASSERT_EQ(0, writer.StartEntry("payload.bin", kCompressStored));
+ ASSERT_EQ(0, writer.FinishEntry());
+ // A metadata entry is mandatory.
+ ASSERT_EQ(0, writer.StartEntry("META-INF/com/android/metadata", kCompressStored));
+ std::string device = android::base::GetProperty("ro.product.device", "");
+ ASSERT_NE("", device);
+ std::string timestamp = android::base::GetProperty("ro.build.date.utc", "");
+ ASSERT_NE("", timestamp);
+ std::string metadata = android::base::Join(
+ std::vector<std::string>{
+ "ota-type=AB", "pre-device=" + device, "post-timestamp=" + timestamp,
+ },
+ "\n");
+ ASSERT_EQ(0, writer.WriteBytes(metadata.data(), metadata.size()));
+ ASSERT_EQ(0, writer.FinishEntry());
+ ASSERT_EQ(0, writer.Finish());
+ ASSERT_EQ(0, fclose(zip_file));
+
+ ZipArchiveHandle zip;
+ ASSERT_EQ(0, OpenArchive(temp_file.path, &zip));
+ int status_fd = 10;
+ std::string path = "/path/to/update.zip";
+ std::vector<std::string> cmd;
+ ASSERT_EQ(INSTALL_CORRUPT, update_binary_command(path, zip, 0, status_fd, &cmd));
+ CloseArchive(zip);
+#else
+ // Cannot test update_binary_command() because it tries to extract update-binary to /tmp.
+ GTEST_LOG_(INFO) << "Test skipped on non-A/B device.";
+#endif // AB_OTA_UPDATER
+}