From 7be3d976a223220e8e48896a401ac7e56e40ce62 Mon Sep 17 00:00:00 2001 From: Egor Tensin Date: Thu, 27 Apr 2017 22:35:21 +0300 Subject: um: reorganize projects * libservice -> service * libsimple -> wrappers/simple * libnt_path_converter -> wrappers/special/nt_path_converter --- um/service/src/device.cpp | 136 ++++++++++++++++++ um/service/src/handle.cpp | 27 ++++ um/service/src/service.cpp | 276 +++++++++++++++++++++++++++++++++++++ um/service/src/service_handle.cpp | 27 ++++ um/service/src/service_manager.cpp | 44 ++++++ um/service/src/windows_error.cpp | 39 ++++++ 6 files changed, 549 insertions(+) create mode 100644 um/service/src/device.cpp create mode 100644 um/service/src/handle.cpp create mode 100644 um/service/src/service.cpp create mode 100644 um/service/src/service_handle.cpp create mode 100644 um/service/src/service_manager.cpp create mode 100644 um/service/src/windows_error.cpp (limited to 'um/service/src') diff --git a/um/service/src/device.cpp b/um/service/src/device.cpp new file mode 100644 index 0000000..5643106 --- /dev/null +++ b/um/service/src/device.cpp @@ -0,0 +1,136 @@ +// Copyright (c) 2015 Egor Tensin +// This file is part of the "Windows 7 drivers" project. +// For details, see https://github.com/egor-tensin/windows7-drivers. +// Distributed under the MIT License. + +#include "libservice/all.hpp" + +#include + +#include + +#include +#include +#include +#include +#include + +namespace libservice +{ + namespace + { + Handle open_device(const std::string& path) + { + const auto raw = CreateFileA( + path.c_str(), + GENERIC_READ | GENERIC_WRITE, + 0, + NULL, + OPEN_EXISTING, + FILE_ATTRIBUTE_NORMAL, + NULL); + + if (INVALID_HANDLE_VALUE == raw) + { + const auto ec = GetLastError(); + throw std::system_error( + ec, WindowsErrorCategory::get(), LIBSERVICE_ERROR_PREFIX); + } + + return Handle(raw); + } + } + + Device Device::open(const std::string& path) + { + return Device(open_device(path)); + } + + std::size_t Device::get_required_output_size( + Code code, + const void* in_buf, + std::size_t in_buf_size) const + { + DWORD nbreq; + + if (in_buf_size > std::numeric_limits::max()) + throw std::range_error("input buffer size is too large"); + + std::size_t nbwritten = DeviceIoControl( + handle, + code, + const_cast(in_buf), + static_cast(in_buf_size), + NULL, + 0, + &nbreq, + NULL); + + if (0 == nbwritten) + { + const auto ec = GetLastError(); + + switch (ec) + { + case ERROR_MORE_DATA: + return nbreq; + + default: + throw std::system_error( + ec, WindowsErrorCategory::get(), LIBSERVICE_ERROR_PREFIX); + } + } + + return nbwritten; + } + + std::size_t Device::send_control_code( + Code code, + const void* in_buf, + std::size_t in_buf_size, + void* out_buf, + std::size_t out_buf_size) const + { + DWORD nbreq; + + if (in_buf_size > std::numeric_limits::max()) + throw std::range_error("input buffer size is too large"); + if (out_buf_size > std::numeric_limits::max()) + throw std::range_error("output buffer size is too large"); + + std::size_t nbwritten = DeviceIoControl( + handle, + code, + const_cast(in_buf), + static_cast(in_buf_size), + out_buf, + static_cast(out_buf_size), + &nbreq, + NULL); + + if (0 == nbwritten) + { + const auto ec = GetLastError(); + throw std::system_error( + ec, WindowsErrorCategory::get(), LIBSERVICE_ERROR_PREFIX); + } + + return nbwritten; + } + + void swap(Device& a, Device& b) LIBSERVICE_NOEXCEPT + { + a.swap(b); + } +} + +namespace std +{ + template <> + void swap( + libservice::Device& a, + libservice::Device& b) + { + a.swap(b); + } +} diff --git a/um/service/src/handle.cpp b/um/service/src/handle.cpp new file mode 100644 index 0000000..7567781 --- /dev/null +++ b/um/service/src/handle.cpp @@ -0,0 +1,27 @@ +// Copyright (c) 2015 Egor Tensin +// This file is part of the "Windows 7 drivers" project. +// For details, see https://github.com/egor-tensin/windows7-drivers. +// Distributed under the MIT License. + +#include "libservice/all.hpp" + +#include + +namespace libservice +{ + void swap(Handle& a, Handle& b) LIBSERVICE_NOEXCEPT + { + a.swap(b); + } +} + +namespace std +{ + template <> + void swap( + libservice::Handle& a, + libservice::Handle& b) LIBSERVICE_NOEXCEPT + { + a.swap(b); + } +} diff --git a/um/service/src/service.cpp b/um/service/src/service.cpp new file mode 100644 index 0000000..8b5e043 --- /dev/null +++ b/um/service/src/service.cpp @@ -0,0 +1,276 @@ +// Copyright (c) 2015 Egor Tensin +// This file is part of the "Windows 7 drivers" project. +// For details, see https://github.com/egor-tensin/windows7-drivers. +// Distributed under the MIT License. + +#include "libservice/all.hpp" + +#include + +#include +#include +#include +#include + +namespace libservice +{ + namespace + { + ServiceHandle open_service( + const ServiceManager& mgr, + const std::string& name) + { + const auto raw = OpenServiceA( + mgr, + name.c_str(), + SERVICE_ALL_ACCESS); + + if (NULL == raw) + { + const auto ec = GetLastError(); + throw std::system_error( + ec, WindowsErrorCategory::get(), LIBSERVICE_ERROR_PREFIX); + } + + return raw; + } + + ServiceHandle install_service( + const ServiceManager& mgr, + const std::string& name, + const std::string& bin_path) + { + const auto raw = CreateServiceA( + mgr, + name.c_str(), + name.c_str(), + SERVICE_ALL_ACCESS, + SERVICE_KERNEL_DRIVER, + SERVICE_DEMAND_START, + SERVICE_ERROR_NORMAL, + bin_path.c_str(), + NULL, + NULL, + NULL, + NULL, + NULL); + + if (NULL == raw) + { + const auto ec = GetLastError(); + throw std::system_error( + ec, WindowsErrorCategory::get(), LIBSERVICE_ERROR_PREFIX); + } + + return raw; + } + + void start_service(const ServiceHandle& handle) + { + if (!StartService(handle, 0, NULL)) + { + const auto ec = GetLastError(); + throw std::system_error( + ec, WindowsErrorCategory::get(), LIBSERVICE_ERROR_PREFIX); + } + } + + void stop_service(const ServiceHandle& handle) + { + SERVICE_STATUS service_status; + + if (!ControlService(handle, SERVICE_CONTROL_STOP, &service_status)) + { + const auto ec = GetLastError(); + throw std::system_error( + ec, WindowsErrorCategory::get(), LIBSERVICE_ERROR_PREFIX); + } + } + + void uninstall_service(const ServiceHandle& handle) + { + if (!DeleteService(handle)) + { + const auto ec = GetLastError(); + throw std::system_error( + ec, WindowsErrorCategory::get(), LIBSERVICE_ERROR_PREFIX); + } + } + + bool service_exists( + const ServiceManager& mgr, + const std::string& name) + { + const auto raw = OpenServiceA( + mgr, + name.c_str(), + SERVICE_QUERY_STATUS); + + if (NULL != raw) + { + ServiceHandle handle(raw); + return true; + } + + const auto ec = GetLastError(); + + switch (ec) + { + case ERROR_SERVICE_DOES_NOT_EXIST: + return false; + + default: + throw std::system_error( + ec, WindowsErrorCategory::get(), LIBSERVICE_ERROR_PREFIX); + } + } + + SERVICE_STATUS_PROCESS query_service_status(const ServiceHandle& handle) + { + SERVICE_STATUS_PROCESS status; + DWORD nbreq; + + const auto buf_ptr = reinterpret_cast(&status); + const auto buf_size = sizeof(status); + + if (!QueryServiceStatusEx( + handle, SC_STATUS_PROCESS_INFO, buf_ptr, buf_size, &nbreq)) + { + const auto ec = GetLastError(); + throw std::system_error( + ec, WindowsErrorCategory::get(), LIBSERVICE_ERROR_PREFIX); + } + + return status; + } + + DWORD query_service_state(const ServiceHandle& handle) + { + return query_service_status(handle).dwCurrentState; + } + + SERVICE_STATUS_PROCESS wait_for_service_state( + const ServiceHandle& handle, + const DWORD desired_state) + { + auto status = query_service_status(handle); + + DWORD old_timestamp = GetTickCount(); + + DWORD old_check_point = status.dwCheckPoint; + DWORD old_wait_hint = status.dwWaitHint; + + while (desired_state != status.dwCurrentState) + { + DWORD wait_time = old_wait_hint / 10; + + if (wait_time < 1000) + wait_time = 1000; + else if (wait_time > 10000) + wait_time = 10000; + + Sleep(wait_time); + + status = query_service_status(handle); + + if (desired_state == status.dwCurrentState) + break; + + if (status.dwCheckPoint > old_check_point) + { + old_timestamp = GetTickCount(); + + old_check_point = status.dwCheckPoint; + old_wait_hint = status.dwWaitHint; + } + else if (GetTickCount() - old_timestamp > old_wait_hint) + { + return status; + } + } + + return status; + } + } + + Service Service::open( + const ServiceManager& mgr, + const std::string& name) + { + return open_service(mgr, name); + } + + Service Service::install( + const ServiceManager& mgr, + const std::string& name, + const std::string& bin_path) + { + return install_service(mgr, name, bin_path); + } + + bool Service::exists( + const ServiceManager& mgr, + const std::string& name) + { + return service_exists(mgr, name); + } + + void Service::start() const + { + const auto state = query_service_state(handle); + + switch (state) + { + case SERVICE_STOPPED: + break; + + case SERVICE_STOP_PENDING: + wait_for_service_state(handle, SERVICE_STOPPED); + break; + + default: + return; + } + + start_service(handle); + wait_for_service_state(handle, SERVICE_RUNNING); + } + + void Service::stop() const + { + switch (query_service_state(handle)) + { + case SERVICE_STOPPED: + return; + + case SERVICE_STOP_PENDING: + wait_for_service_state(handle, SERVICE_STOPPED); + return; + } + + stop_service(handle); + wait_for_service_state(handle, SERVICE_STOPPED); + } + + void Service::uninstall() const + { + stop(); + uninstall_service(handle); + } + + void swap(Service& a, Service& b) LIBSERVICE_NOEXCEPT + { + a.swap(b); + } +} + +namespace std +{ + template <> + void swap( + libservice::Service& a, + libservice::Service& b) LIBSERVICE_NOEXCEPT + { + a.swap(b); + } +} diff --git a/um/service/src/service_handle.cpp b/um/service/src/service_handle.cpp new file mode 100644 index 0000000..adce7f0 --- /dev/null +++ b/um/service/src/service_handle.cpp @@ -0,0 +1,27 @@ +// Copyright (c) 2015 Egor Tensin +// This file is part of the "Windows 7 drivers" project. +// For details, see https://github.com/egor-tensin/windows7-drivers. +// Distributed under the MIT License. + +#include "libservice/all.hpp" + +#include + +namespace libservice +{ + void swap(ServiceHandle& a, ServiceHandle& b) LIBSERVICE_NOEXCEPT + { + a.swap(b); + } +} + +namespace std +{ + template <> + void swap( + libservice::ServiceHandle& a, + libservice::ServiceHandle& b) LIBSERVICE_NOEXCEPT + { + a.swap(b); + } +} diff --git a/um/service/src/service_manager.cpp b/um/service/src/service_manager.cpp new file mode 100644 index 0000000..61662de --- /dev/null +++ b/um/service/src/service_manager.cpp @@ -0,0 +1,44 @@ +// Copyright (c) 2015 Egor Tensin +// This file is part of the "Windows 7 drivers" project. +// For details, see https://github.com/egor-tensin/windows7-drivers. +// Distributed under the MIT License. + +#include "libservice/all.hpp" + +#include + +#include +#include + +namespace libservice +{ + ServiceManager ServiceManager::open() + { + SC_HANDLE raw = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS); + + if (NULL == raw) + { + const auto ec = GetLastError(); + throw std::system_error( + ec, WindowsErrorCategory::get(), LIBSERVICE_ERROR_PREFIX); + } + + return ServiceHandle(raw); + } + + void swap(ServiceManager& a, ServiceManager& b) LIBSERVICE_NOEXCEPT + { + a.swap(b); + } +} + +namespace std +{ + template <> + void swap( + libservice::ServiceManager& a, + libservice::ServiceManager& b) LIBSERVICE_NOEXCEPT + { + a.swap(b); + } +} diff --git a/um/service/src/windows_error.cpp b/um/service/src/windows_error.cpp new file mode 100644 index 0000000..f27018b --- /dev/null +++ b/um/service/src/windows_error.cpp @@ -0,0 +1,39 @@ +// Copyright (c) 2015 Egor Tensin +// This file is part of the "Windows 7 drivers" project. +// For details, see https://github.com/egor-tensin/windows7-drivers. +// Distributed under the MIT License. + +#include "libservice/all.hpp" + +#include + +#include + +namespace libservice +{ + std::string WindowsErrorCategory::message(int code) const + { + char* buf_ptr; + + const auto nbwritten = FormatMessageA( + FORMAT_MESSAGE_ALLOCATE_BUFFER + | FORMAT_MESSAGE_FROM_SYSTEM + | FORMAT_MESSAGE_IGNORE_INSERTS, + NULL, + code, + MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), + reinterpret_cast(&buf_ptr), + 0, + NULL); + + if (0 == nbwritten) + { + LocalFree(buf_ptr); + return "Couldn't format error message"; + } + + std::string str(buf_ptr, nbwritten - 2); + LocalFree(buf_ptr); + return str; + } +} -- cgit v1.2.3