rawaccel/installer/installer.cpp
a1xd 41d73f257a improve installer
use standard syntax for service binpath

throw if copy_file fails
2021-09-23 22:36:19 -04:00

116 lines
4.2 KiB
C++

#include <iostream>
#include <utility-install.hpp>
#include <VersionHelpers.h>
void add_service(SC_HANDLE srv_manager) {
SC_HANDLE srv = CreateServiceW(
srv_manager, // SCM database
DRIVER_NAME.c_str(), // name of service
DRIVER_NAME.c_str(), // service name to display
SERVICE_ALL_ACCESS, // desired access
SERVICE_KERNEL_DRIVER, // service type
SERVICE_DEMAND_START, // start type
SERVICE_ERROR_NORMAL, // error control type
DRIVER_ENV_PATH.c_str(), // path to service's binary
NULL, // no load ordering group
NULL, // no tag identifier
NULL, // no dependencies
NULL, // LocalSystem account
NULL // no password
);
if (srv) CloseServiceHandle(srv);
else throw sys_error("CreateService failed");
}
BOOL update_service(SC_HANDLE srv) {
return ChangeServiceConfigW(
srv, // service handle
SERVICE_KERNEL_DRIVER, // service type
SERVICE_DEMAND_START, // start type
SERVICE_ERROR_NORMAL, // error control type
DRIVER_ENV_PATH.c_str(), // path to service's binary
NULL, // no load ordering group
NULL, // no tag identifier
NULL, // no dependencies
NULL, // LocalSystem account
NULL, // no password
DRIVER_NAME.c_str() // service name to display
);
}
int main() {
SC_HANDLE srv_manager = NULL;
try {
if (!IsWindows10OrGreater()) {
throw std::runtime_error("OS not supported, you need at least Windows 10");
}
fs::path source = fs::path(L"driver") / DRIVER_FILE_NAME;
if (!fs::exists(source)) {
throw std::runtime_error(source.generic_string() + " does not exist");
}
fs::path target = expand(DRIVER_ENV_PATH);
if (fs::exists(target)) {
std::cout << "Driver already installed. Removing previous installation.\n";
fs::path tmp = make_temp_path(target);
// schedule tmp to be deleted if rename target -> tmp is successful
if (MoveFileExW(target.c_str(), tmp.c_str(), MOVEFILE_REPLACE_EXISTING)) {
MoveFileExW(tmp.c_str(), NULL, MOVEFILE_DELAY_UNTIL_REBOOT);
}
}
if (!fs::copy_file(source, target, fs::copy_options::overwrite_existing)) {
throw sys_error("copy_file failed");
}
srv_manager = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
if (srv_manager == NULL) throw sys_error("OpenSCManager failed");
SC_HANDLE srv = OpenServiceW(srv_manager, DRIVER_NAME.c_str(), SC_MANAGER_ALL_ACCESS);
if (srv != NULL) {
BOOL success = update_service(srv);
CloseServiceHandle(srv);
if (!success) throw sys_error("ChangeServiceConfig failed");
}
else {
auto error_code = GetLastError();
if (error_code == ERROR_SERVICE_DOES_NOT_EXIST) {
add_service(srv_manager);
}
else {
throw sys_error("OpenService failed", error_code);
}
}
modify_upper_filters([](std::vector<std::wstring>& filters) {
auto driver_pos = std::find(filters.begin(), filters.end(), DRIVER_NAME);
if (driver_pos != filters.end()) return;
auto mouclass_pos = std::find(filters.begin(), filters.end(), L"mouclass");
filters.insert(mouclass_pos, DRIVER_NAME);
});
std::cout << "Install complete, change will take effect after restart.\n";
}
catch (const std::system_error& e) {
std::cerr << "Error: " << e.what() << ' ' << e.code() << '\n';
}
catch (const std::exception& e) {
std::cerr << "Error: " << e.what() << '\n';
}
if (srv_manager) CloseServiceHandle(srv_manager);
std::cout << "Press any key to close this window . . .\n";
_getwch();
}