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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 <android-base/strings.h>
#include <bootloader_message/bootloader_message.h>
#include <gtest/gtest.h>
#include <string>
#include <vector>
class BootloaderMessageTest : public ::testing::Test {
protected:
virtual void TearDown() override {
// Clear the BCB.
std::string err;
ASSERT_TRUE(clear_bootloader_message(&err)) << "Failed to clear BCB: " << err;
}
};
TEST_F(BootloaderMessageTest, clear_bootloader_message) {
// Clear the BCB.
std::string err;
ASSERT_TRUE(clear_bootloader_message(&err)) << "Failed to clear BCB: " << err;
// Verify the content.
bootloader_message boot;
ASSERT_TRUE(read_bootloader_message(&boot, &err)) << "Failed to read BCB: " << err;
// All the bytes should be cleared.
ASSERT_EQ(std::string(sizeof(boot), '\0'),
std::string(reinterpret_cast<const char*>(&boot), sizeof(boot)));
}
TEST_F(BootloaderMessageTest, read_and_write_bootloader_message) {
// 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(boot, &err)) << "Failed to write BCB: " << err;
// Read and verify.
bootloader_message boot_verify;
ASSERT_TRUE(read_bootloader_message(&boot_verify, &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_F(BootloaderMessageTest, write_bootloader_message_options) {
// Write the options to BCB.
std::vector<std::string> options = { "option1", "option2" };
std::string err;
ASSERT_TRUE(write_bootloader_message(options, &err)) << "Failed to write BCB: " << err;
// Inject some bytes into boot, which should be overwritten while reading.
bootloader_message boot;
strlcpy(boot.recovery, "random message", sizeof(boot.recovery));
strlcpy(boot.reserved, "reserved bytes", sizeof(boot.reserved));
ASSERT_TRUE(read_bootloader_message(&boot, &err)) << "Failed to read BCB: " << err;
// 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 cleared.
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_F(BootloaderMessageTest, write_bootloader_message_options_empty) {
// Write empty vector.
std::vector<std::string> options;
std::string err;
ASSERT_TRUE(write_bootloader_message(options, &err)) << "Failed to write BCB: " << err;
// Read and verify.
bootloader_message boot;
ASSERT_TRUE(read_bootloader_message(&boot, &err)) << "Failed to read BCB: " << err;
// 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 cleared.
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_F(BootloaderMessageTest, write_bootloader_message_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));
}
std::string err;
ASSERT_TRUE(write_bootloader_message(options, &err)) << "Failed to write BCB: " << err;
// Read and verify.
bootloader_message boot;
ASSERT_TRUE(read_bootloader_message(&boot, &err)) << "Failed to read BCB: " << err;
// 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 cleared.
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_F(BootloaderMessageTest, update_bootloader_message) {
// Inject some bytes into boot, which should be not overwritten later.
bootloader_message boot;
strlcpy(boot.recovery, "random message", sizeof(boot.recovery));
strlcpy(boot.reserved, "reserved bytes", sizeof(boot.reserved));
std::string err;
ASSERT_TRUE(write_bootloader_message(boot, &err)) << "Failed to write BCB: " << err;
// Update the BCB message.
std::vector<std::string> options = { "option1", "option2" };
ASSERT_TRUE(update_bootloader_message(options, &err)) << "Failed to update BCB: " << err;
bootloader_message boot_verify;
ASSERT_TRUE(read_bootloader_message(&boot_verify, &err)) << "Failed to read BCB: " << err;
// Verify that command and recovery fields should be set.
ASSERT_EQ("boot-recovery", std::string(boot_verify.command));
std::string expected = "recovery\n" + android::base::Join(options, "\n") + "\n";
ASSERT_EQ(expected, std::string(boot_verify.recovery));
// The rest should be intact.
ASSERT_EQ(std::string(boot.status), std::string(boot_verify.status));
ASSERT_EQ(std::string(boot.stage), std::string(boot_verify.stage));
ASSERT_EQ(std::string(boot.reserved), std::string(boot_verify.reserved));
}
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