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#include <gtest/gtest.h>
#include <hooklib.h>
#include <iostream>
#include <ttrampolinepool.h>
#include <utility.h>
#include <windows_sane.h>
// #include <boost/thread.hpp>
#include <boost/filesystem.hpp>
#include <exceptionex.h>
#include <spdlog/sinks/stdout_sinks.h>
#include <spdlog/spdlog.h>
#include <winapi.h>
namespace fs = boost::filesystem;
#include <stringutils.h>
using namespace std;
using namespace HookLib;
class TempFile
{
public:
TempFile(const wchar_t* relative) : wpath(winapi::wide::getModuleFileName(nullptr))
{
size_t path_end = wpath.rfind(L'\\');
if (path_end != std::wstring::npos) {
wpath.erase(path_end + 1);
wpath += L"..\\temp\\";
wpath += relative;
} else
wpath = relative;
path =
usvfs::shared::string_cast<std::string>(wpath, usvfs::shared::CodePage::UTF8);
}
const char* c_str() const { return path.c_str(); }
const wchar_t* w_str() const { return wpath.c_str(); }
private:
std::string path;
std::wstring wpath;
};
static const HANDLE MARKERHANDLE = reinterpret_cast<HANDLE>(0x1CC0FFEE);
static const TempFile VALID_FILENAME{L"VALID_FILENAME"};
static const TempFile INVALID_FILENAME{L"\\<>/"};
#include "test_hooks.cpp"
static bool stubCalled = false;
void __cdecl CreateFileStub(LPVOID)
{
stubCalled = true;
}
class HookingTest : public testing::Test
{
public:
void SetUp()
{
/* typedef sinks::synchronous_sink<sinks::text_ostream_backend> text_sink;
boost::shared_ptr<text_sink> sink = boost::make_shared<text_sink>();
// Add a stream to write log to
sink->locked_backend()->add_stream(boost::make_shared<std::ofstream>("c:\\temp\\testing_out.log"));
// Register the sink in the logging core
logging::core::get()->add_sink(sink);
sink->set_filter(expr::attr<LogLevel>("Severity") >= LogLevel::Debug);*/
}
void TearDown() {}
private:
};
TEST(GetProcAddressTest, ReturnsValidResults)
{
HMODULE mh = GetModuleHandleA("KernelBase.dll");
EXPECT_NE(nullptr, mh);
EXPECT_EQ(GetProcAddress(mh, "CreateFileA"), MyGetProcAddress(mh, "CreateFileA"));
}
TEST_F(HookingTest, CanHook)
{
HMODULE k32Mod = GetModuleHandleA("kernel32.dll");
HOOKHANDLE hook = InstallHook(k32Mod, "CreateFileW", THCreateFileW_1);
if (hook == INVALID_HOOK) {
k32Mod = GetModuleHandleA("kernelbase.dll");
hook = InstallHook(k32Mod, "CreateFileW", THCreateFileW_1);
}
EXPECT_NE(INVALID_HOOK, hook);
RemoveHook(hook);
}
TEST_F(HookingTest, CanStub)
{
HMODULE k32Mod = GetModuleHandleA("kernel32.dll");
HOOKHANDLE hook = InstallStub(k32Mod, "CreateFileW", CreateFileStub);
if (hook == INVALID_HOOK) {
k32Mod = GetModuleHandleA("kernelbase.dll");
hook = InstallStub(k32Mod, "CreateFileW", CreateFileStub);
}
EXPECT_NE(INVALID_HOOK, hook);
RemoveHook(hook);
}
TEST_F(HookingTest, RemoveHook)
{
// test that we can remove a hook
HMODULE k32Mod = GetModuleHandleA("kernel32.dll");
HOOKHANDLE hook = InstallHook(k32Mod, "CreateFileA", THCreateFileA_1);
if (hook == INVALID_HOOK) {
k32Mod = GetModuleHandleA("kernelbase.dll");
hook = InstallHook(k32Mod, "CreateFileA", THCreateFileA_1);
}
EXPECT_NE(INVALID_HOOK, hook);
RemoveHook(hook);
HANDLE test = CreateFileA(INVALID_FILENAME.c_str(), GENERIC_READ, 0, nullptr,
OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, nullptr);
EXPECT_EQ(INVALID_HANDLE_VALUE, test);
}
TEST_F(HookingTest, CreateFileStubTest)
{
stubCalled = false;
// test if our stub works
HMODULE k32Mod = GetModuleHandleA("kernel32.dll");
HOOKHANDLE hook = InstallStub(k32Mod, "CreateFileA", CreateFileStub);
if (hook == INVALID_HOOK) {
k32Mod = GetModuleHandleA("kernelbase.dll");
hook = InstallStub(k32Mod, "CreateFileA", CreateFileStub);
}
EXPECT_NE(INVALID_HOOK, hook);
HANDLE test = CreateFileA(INVALID_FILENAME.c_str(), GENERIC_READ, 0, nullptr,
OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, nullptr);
RemoveHook(hook);
EXPECT_EQ(true, stubCalled);
EXPECT_EQ(INVALID_HANDLE_VALUE, test);
}
TEST_F(HookingTest, CreateFileHook)
{
// test if our hook works
HMODULE k32Mod = GetModuleHandleA("kernel32.dll");
HOOKHANDLE hook = InstallHook(k32Mod, "CreateFileA", THCreateFileA_1);
if (hook == INVALID_HOOK) {
k32Mod = GetModuleHandleA("kernelbase.dll");
hook = InstallHook(k32Mod, "CreateFileA", THCreateFileA_1);
}
HANDLE test = CreateFileA(INVALID_FILENAME.c_str(), GENERIC_READ, 0, nullptr,
OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, nullptr);
RemoveHook(hook);
EXPECT_EQ(MARKERHANDLE, test);
}
TEST_F(HookingTest, CreateFileWHook)
{
// test if our hook works
HMODULE k32Mod = GetModuleHandleA("kernel32.dll");
HOOKHANDLE hook = InstallHook(k32Mod, "CreateFileW", THCreateFileW_1);
if (hook == INVALID_HOOK) {
k32Mod = GetModuleHandleA("kernelbase.dll");
hook = InstallHook(k32Mod, "CreateFileW", THCreateFileW_1);
}
HANDLE test = CreateFileW(INVALID_FILENAME.w_str(), 0x42, 0x43,
(LPSECURITY_ATTRIBUTES)0x44, 0x45, 0x46, (HANDLE)0x47);
RemoveHook(hook);
EXPECT_EQ(MARKERHANDLE, test);
}
TEST_F(HookingTest, CreateFileHookRecursion)
{
// test that the trampoline works, so we can call the original function from
// within the hook
HMODULE k32Mod = GetModuleHandleA("kernel32.dll");
HOOKHANDLE hook = InstallHook(k32Mod, "CreateFileA", THCreateFileA_1);
if (hook == INVALID_HOOK) {
k32Mod = GetModuleHandleA("kernelbase.dll");
hook = InstallHook(k32Mod, "CreateFileA", THCreateFileA_1);
}
HANDLE test = CreateFileA(VALID_FILENAME.c_str(), GENERIC_READ, 0, nullptr,
OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, nullptr);
RemoveHook(hook);
EXPECT_NE(MARKERHANDLE, test);
}
TEST_F(HookingTest, Threading)
{
// test that multiple threads can concurrently call a hooked function without
// incorrect results.
// TODO: this test doesn't reliably find thread-unsafeties
// NOTE: the hooklib currently does not claim that hook installation or removal
// is thread-safe, only the hooked functions shouldn't become less thread-safe by
// being hooked!
static const int NUM_THREADS = 100;
static const int NUM_TRIES = 1000;
HMODULE k32Mod = GetModuleHandleA("kernel32.dll");
HOOKHANDLE hook = InstallHook(k32Mod, "CreateFileA", THCreateFileA_1);
if (hook == INVALID_HOOK) {
k32Mod = GetModuleHandleA("kernelbase.dll");
hook = InstallHook(k32Mod, "CreateFileA", THCreateFileA_1);
}
std::thread threads[NUM_THREADS];
for (int i = 0; i < NUM_THREADS; ++i) {
threads[i] = std::thread([i] {
for (int count = 0; count < NUM_TRIES; ++count) {
HANDLE test = CreateFileA(INVALID_FILENAME.c_str(), GENERIC_READ, 0, nullptr,
OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, nullptr);
EXPECT_EQ(MARKERHANDLE, test);
}
});
}
for (int i = 0; i < NUM_THREADS; ++i) {
threads[i].join();
}
RemoveHook(hook);
}
int main(int argc, char** argv)
{
auto logger = spdlog::stdout_logger_mt("usvfs");
logger->set_level(spdlog::level::warn);
TrampolinePool::initialize();
testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
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