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/*
* Copyright (C) 2016 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 <string>
#include <string_view>
#include <vector>
#include <android-base/file.h>
#include <android-base/strings.h>
#include <bootloader_message/bootloader_message.h>
#include <gtest/gtest.h>
using namespace std::string_literals;
extern void SetMiscBlockDeviceForTest(std::string_view misc_device);
TEST(BootloaderMessageTest, read_and_write_bootloader_message) {
TemporaryFile temp_misc;
// Write the BCB.
bootloader_message boot = {};
strlcpy(boot.command, "command", sizeof(boot.command));
strlcpy(boot.recovery, "message1\nmessage2\n", sizeof(boot.recovery));
strlcpy(boot.status, "status1", sizeof(boot.status));
std::string err;
ASSERT_TRUE(write_bootloader_message_to(boot, temp_misc.path, &err))
<< "Failed to write BCB: " << err;
// Read and verify.
bootloader_message boot_verify;
ASSERT_TRUE(read_bootloader_message_from(&boot_verify, temp_misc.path, &err))
<< "Failed to read BCB: " << err;
ASSERT_EQ(std::string(reinterpret_cast<const char*>(&boot), sizeof(boot)),
std::string(reinterpret_cast<const char*>(&boot_verify), sizeof(boot_verify)));
}
TEST(BootloaderMessageTest, update_bootloader_message_in_struct) {
// Write the options to BCB.
std::vector<std::string> options = { "option1", "option2" };
bootloader_message boot = {};
// Inject some bytes into boot.
strlcpy(boot.recovery, "random message", sizeof(boot.recovery));
strlcpy(boot.status, "status bytes", sizeof(boot.status));
strlcpy(boot.stage, "stage bytes", sizeof(boot.stage));
strlcpy(boot.reserved, "reserved bytes", sizeof(boot.reserved));
ASSERT_TRUE(update_bootloader_message_in_struct(&boot, options));
// Verify that command and recovery fields should be set.
ASSERT_EQ("boot-recovery", std::string(boot.command));
std::string expected = "recovery\n" + android::base::Join(options, "\n") + "\n";
ASSERT_EQ(expected, std::string(boot.recovery));
// The rest should be intact.
ASSERT_EQ("status bytes", std::string(boot.status));
ASSERT_EQ("stage bytes", std::string(boot.stage));
ASSERT_EQ("reserved bytes", std::string(boot.reserved));
}
TEST(BootloaderMessageTest, update_bootloader_message_recovery_options_empty) {
// Write empty vector.
std::vector<std::string> options;
// Read and verify.
bootloader_message boot = {};
ASSERT_TRUE(update_bootloader_message_in_struct(&boot, options));
// command and recovery fields should be set.
ASSERT_EQ("boot-recovery", std::string(boot.command));
ASSERT_EQ("recovery\n", std::string(boot.recovery));
// The rest should be empty.
ASSERT_EQ(std::string(sizeof(boot.status), '\0'), std::string(boot.status, sizeof(boot.status)));
ASSERT_EQ(std::string(sizeof(boot.stage), '\0'), std::string(boot.stage, sizeof(boot.stage)));
ASSERT_EQ(std::string(sizeof(boot.reserved), '\0'),
std::string(boot.reserved, sizeof(boot.reserved)));
}
TEST(BootloaderMessageTest, update_bootloader_message_recovery_options_long) {
// Write super long message.
std::vector<std::string> options;
for (int i = 0; i < 100; i++) {
options.push_back("option: " + std::to_string(i));
}
// Read and verify.
bootloader_message boot = {};
ASSERT_TRUE(update_bootloader_message_in_struct(&boot, options));
// Make sure it's long enough.
std::string expected = "recovery\n" + android::base::Join(options, "\n") + "\n";
ASSERT_GE(expected.size(), sizeof(boot.recovery));
// command and recovery fields should be set.
ASSERT_EQ("boot-recovery", std::string(boot.command));
ASSERT_EQ(expected.substr(0, sizeof(boot.recovery) - 1), std::string(boot.recovery));
ASSERT_EQ('\0', boot.recovery[sizeof(boot.recovery) - 1]);
// The rest should be empty.
ASSERT_EQ(std::string(sizeof(boot.status), '\0'), std::string(boot.status, sizeof(boot.status)));
ASSERT_EQ(std::string(sizeof(boot.stage), '\0'), std::string(boot.stage, sizeof(boot.stage)));
ASSERT_EQ(std::string(sizeof(boot.reserved), '\0'),
std::string(boot.reserved, sizeof(boot.reserved)));
}
TEST(BootloaderMessageTest, WriteMiscPartitionVendorSpace) {
TemporaryFile temp_misc;
ASSERT_TRUE(android::base::WriteStringToFile(std::string(4096, '\x00'), temp_misc.path));
SetMiscBlockDeviceForTest(temp_misc.path);
constexpr std::string_view kTestMessage = "kTestMessage";
std::string err;
ASSERT_TRUE(WriteMiscPartitionVendorSpace(kTestMessage.data(), kTestMessage.size(), 0, &err));
std::string message;
message.resize(kTestMessage.size());
ASSERT_TRUE(ReadMiscPartitionVendorSpace(message.data(), message.size(), 0, &err));
ASSERT_EQ(kTestMessage, message);
// Write with an offset.
ASSERT_TRUE(WriteMiscPartitionVendorSpace("\x00\x00", 2, 5, &err));
ASSERT_TRUE(ReadMiscPartitionVendorSpace(message.data(), message.size(), 0, &err));
ASSERT_EQ("kTest\x00\x00ssage"s, message);
// Write with the right size.
auto start_offset =
WIPE_PACKAGE_OFFSET_IN_MISC - VENDOR_SPACE_OFFSET_IN_MISC - kTestMessage.size();
ASSERT_TRUE(
WriteMiscPartitionVendorSpace(kTestMessage.data(), kTestMessage.size(), start_offset, &err));
// Out-of-bound write.
ASSERT_FALSE(WriteMiscPartitionVendorSpace(kTestMessage.data(), kTestMessage.size(),
start_offset + 1, &err));
// Message won't fit.
std::string long_message(WIPE_PACKAGE_OFFSET_IN_MISC - VENDOR_SPACE_OFFSET_IN_MISC + 1, 'a');
ASSERT_FALSE(WriteMiscPartitionVendorSpace(long_message.data(), long_message.size(), 0, &err));
}
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