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Add support for setupapi.SetupDiGetDeviceInfoListDetail()

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Signed-off-by: Simon Rozman <simon@rozman.si>
This commit is contained in:
Simon Rozman 2019-02-01 11:39:57 +01:00 committed by Jason A. Donenfeld
parent d41bc015cc
commit 45959c116a
4 changed files with 150 additions and 41 deletions
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53
setupapi/setupapi_windows.go
View File

@ -7,40 +7,17 @@ package setupapi
import (
"syscall"
"unsafe"
"golang.org/x/sys/windows"
)
const (
SP_MAX_MACHINENAME_LENGTH = windows.MAX_PATH + 3
)
type DIGCF uint32
const (
DIGCF_DEFAULT DIGCF = 0x00000001 // only valid with DIGCF_DEVICEINTERFACE
DIGCF_PRESENT DIGCF = 0x00000002
DIGCF_ALLCLASSES DIGCF = 0x00000004
DIGCF_PROFILE DIGCF = 0x00000008
DIGCF_DEVICEINTERFACE DIGCF = 0x00000010
)
type DevInfo windows.Handle
// The SetupDiDestroyDeviceInfoList function deletes a device information set and frees all associated memory.
func (h DevInfo) Close() error {
if h != DevInfo(windows.InvalidHandle) {
return SetupDiDestroyDeviceInfoList(h)
}
return nil
}
//sys setupDiGetClassDevsEx(ClassGuid *windows.GUID, Enumerator *uint16, hwndParent uintptr, Flags DIGCF, DeviceInfoSet DevInfo, MachineName *uint16, reserved uintptr) (handle DevInfo, err error) [failretval==DevInfo(windows.InvalidHandle)] = setupapi.SetupDiGetClassDevsExW
//sys setupDiGetClassDevsEx(ClassGUID *windows.GUID, Enumerator *uint16, hwndParent uintptr, Flags DIGCF, DeviceInfoSet DevInfo, MachineName *uint16, reserved uintptr) (handle DevInfo, err error) [failretval==DevInfo(windows.InvalidHandle)] = setupapi.SetupDiGetClassDevsExW
//sys SetupDiDestroyDeviceInfoList(DeviceInfoSet DevInfo) (err error) = setupapi.SetupDiDestroyDeviceInfoList
//sys setupDiGetDeviceInfoListDetail(DeviceInfoSet DevInfo, DeviceInfoSetDetailData *SP_DEVINFO_LIST_DETAIL_DATA) (err error) = setupapi.SetupDiGetDeviceInfoListDetailW
// The SetupDiGetClassDevsEx function returns a handle to a device information set that contains requested device information elements for a local or a remote computer.
func SetupDiGetClassDevsEx(ClassGuid *windows.GUID, Enumerator string, hwndParent uintptr, Flags DIGCF, DeviceInfoSet DevInfo, MachineName string) (handle DevInfo, err error) {
// SetupDiGetClassDevsEx function returns a handle to a device information set that contains requested device information elements for a local or a remote computer.
func SetupDiGetClassDevsEx(ClassGUID *windows.GUID, Enumerator string, hwndParent uintptr, Flags DIGCF, DeviceInfoSet DevInfo, MachineName string) (handle DevInfo, err error) {
var _p0 *uint16
if Enumerator != "" {
_p0, err = syscall.UTF16PtrFromString(Enumerator)
@ -55,5 +32,23 @@ func SetupDiGetClassDevsEx(ClassGuid *windows.GUID, Enumerator string, hwndParen
return
}
}
return setupDiGetClassDevsEx(ClassGuid, _p0, hwndParent, Flags, DeviceInfoSet, _p1, 0)
return setupDiGetClassDevsEx(ClassGUID, _p0, hwndParent, Flags, DeviceInfoSet, _p1, 0)
}
// SetupDiGetDeviceInfoListDetail function retrieves information associated with a device information set including the class GUID, remote computer handle, and remote computer name.
func SetupDiGetDeviceInfoListDetail(DeviceInfoSet DevInfo) (data *DevInfoListDetailData, err error) {
var _p0 SP_DEVINFO_LIST_DETAIL_DATA
_p0.Size = uint32(unsafe.Sizeof(_p0))
err = setupDiGetDeviceInfoListDetail(DeviceInfoSet, &_p0)
if err != nil {
return
}
data = &DevInfoListDetailData{
ClassGUID: _p0.ClassGUID,
RemoteMachineHandle: _p0.RemoteMachineHandle,
RemoteMachineName: windows.UTF16ToString(_p0.RemoteMachineName[:]),
}
return
}

66
setupapi/setupapi_windows_test.go
View File

@ -12,15 +12,15 @@ import (
"golang.org/x/sys/windows"
)
var guidDeviceClassNet = windows.GUID{0x4d36e972, 0xe325, 0x11ce, [8]byte{0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18}}
var computerName string
func init() {
computerName, _ = windows.ComputerName()
}
func TestSetupDiGetClassDevsEx(t *testing.T) {
guidDeviceClassNet := windows.GUID{0x4d36e972, 0xe325, 0x11ce, [8]byte{0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18}}
compName, err := windows.ComputerName()
if err != nil {
t.Errorf("Error getting computer name: %s", err.Error())
}
dev_info_list, err := SetupDiGetClassDevsEx(&guidDeviceClassNet, "PCI", 0, DIGCF_PRESENT, DevInfo(0), compName)
dev_info_list, err := SetupDiGetClassDevsEx(&guidDeviceClassNet, "PCI", 0, DIGCF_PRESENT, DevInfo(0), computerName)
if err == nil {
dev_info_list.Close()
} else {
@ -37,3 +37,53 @@ func TestSetupDiGetClassDevsEx(t *testing.T) {
}
}
}
func TestSetupDiGetDeviceInfoListDetailLocal(t *testing.T) {
dev_info_list, err := SetupDiGetClassDevsEx(&guidDeviceClassNet, "", 0, DIGCF_PRESENT, DevInfo(0), "")
if err != nil {
t.Errorf("Error calling SetupDiGetClassDevsEx: %s", err.Error())
}
defer SetupDiDestroyDeviceInfoList(dev_info_list)
data, err := SetupDiGetDeviceInfoListDetail(dev_info_list)
if err != nil {
t.Errorf("Error calling SetupDiGetDeviceInfoListDetail: %s", err.Error())
}
if data.ClassGUID != guidDeviceClassNet {
t.Error("SetupDiGetDeviceInfoListDetail returned different class GUID")
}
if data.RemoteMachineHandle != windows.Handle(0) {
t.Error("SetupDiGetDeviceInfoListDetail returned non-NULL remote machine handle")
}
if data.RemoteMachineName != "" {
t.Error("SetupDiGetDeviceInfoListDetail returned non-NULL remote machine name")
}
}
func TestSetupDiGetDeviceInfoListDetailRemote(t *testing.T) {
dev_info_list, err := SetupDiGetClassDevsEx(&guidDeviceClassNet, "", 0, DIGCF_PRESENT, DevInfo(0), computerName)
if err != nil {
t.Errorf("Error calling SetupDiGetClassDevsEx: %s", err.Error())
}
defer SetupDiDestroyDeviceInfoList(dev_info_list)
data, err := SetupDiGetDeviceInfoListDetail(dev_info_list)
if err != nil {
t.Errorf("Error calling SetupDiGetDeviceInfoListDetail: %s", err.Error())
}
if data.ClassGUID != guidDeviceClassNet {
t.Error("SetupDiGetDeviceInfoListDetail returned different class GUID")
}
if data.RemoteMachineHandle == windows.Handle(0) {
t.Error("SetupDiGetDeviceInfoListDetail returned NULL remote machine handle")
}
if data.RemoteMachineName != computerName {
t.Error("SetupDiGetDeviceInfoListDetail returned different remote machine name")
}
}

51
setupapi/types_windows.go Normal file
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@ -0,0 +1,51 @@
/* SPDX-License-Identifier: MIT
*
* Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
*/
package setupapi
import (
"golang.org/x/sys/windows"
)
type DIGCF uint32
const (
DIGCF_DEFAULT DIGCF = 0x00000001 // only valid with DIGCF_DEVICEINTERFACE
DIGCF_PRESENT DIGCF = 0x00000002
DIGCF_ALLCLASSES DIGCF = 0x00000004
DIGCF_PROFILE DIGCF = 0x00000008
DIGCF_DEVICEINTERFACE DIGCF = 0x00000010
)
type DevInfo windows.Handle
// SetupDiDestroyDeviceInfoList function deletes a device information set and frees all associated memory.
func (h DevInfo) Close() error {
if h != DevInfo(windows.InvalidHandle) {
return SetupDiDestroyDeviceInfoList(h)
}
return nil
}
const (
// SP_MAX_MACHINENAME_LENGTH defines maximum length of a machine name in the format expected by ConfigMgr32 CM_Connect_Machine (i.e., "\\\\MachineName\0").
SP_MAX_MACHINENAME_LENGTH = windows.MAX_PATH + 3
)
// SP_DEVINFO_LIST_DETAIL_DATA is a structure for detailed information on a device information set (used for SetupDiGetDeviceInfoListDetail which supercedes the functionality of SetupDiGetDeviceInfoListClass).
type SP_DEVINFO_LIST_DETAIL_DATA struct {
Size uint32
ClassGUID windows.GUID
RemoteMachineHandle windows.Handle
RemoteMachineName [SP_MAX_MACHINENAME_LENGTH]uint16
}
// DevInfoListDetailData is a structure for detailed information on a device information set (used for SetupDiGetDeviceInfoListDetail which supercedes the functionality of SetupDiGetDeviceInfoListClass).
type DevInfoListDetailData struct {
ClassGUID windows.GUID
RemoteMachineHandle windows.Handle
RemoteMachineName string
}

21
setupapi/zsetupapi_windows.go
View File

@ -39,12 +39,13 @@ func errnoErr(e syscall.Errno) error {
var (
modsetupapi = windows.NewLazySystemDLL("setupapi.dll")
procSetupDiGetClassDevsExW = modsetupapi.NewProc("SetupDiGetClassDevsExW")
procSetupDiDestroyDeviceInfoList = modsetupapi.NewProc("SetupDiDestroyDeviceInfoList")
procSetupDiGetClassDevsExW = modsetupapi.NewProc("SetupDiGetClassDevsExW")
procSetupDiDestroyDeviceInfoList = modsetupapi.NewProc("SetupDiDestroyDeviceInfoList")
procSetupDiGetDeviceInfoListDetailW = modsetupapi.NewProc("SetupDiGetDeviceInfoListDetailW")
)
func setupDiGetClassDevsEx(ClassGuid *windows.GUID, Enumerator *uint16, hwndParent uintptr, Flags DIGCF, DeviceInfoSet DevInfo, MachineName *uint16, reserved uintptr) (handle DevInfo, err error) {
r0, _, e1 := syscall.Syscall9(procSetupDiGetClassDevsExW.Addr(), 7, uintptr(unsafe.Pointer(ClassGuid)), uintptr(unsafe.Pointer(Enumerator)), uintptr(hwndParent), uintptr(Flags), uintptr(DeviceInfoSet), uintptr(unsafe.Pointer(MachineName)), uintptr(reserved), 0, 0)
func setupDiGetClassDevsEx(ClassGUID *windows.GUID, Enumerator *uint16, hwndParent uintptr, Flags DIGCF, DeviceInfoSet DevInfo, MachineName *uint16, reserved uintptr) (handle DevInfo, err error) {
r0, _, e1 := syscall.Syscall9(procSetupDiGetClassDevsExW.Addr(), 7, uintptr(unsafe.Pointer(ClassGUID)), uintptr(unsafe.Pointer(Enumerator)), uintptr(hwndParent), uintptr(Flags), uintptr(DeviceInfoSet), uintptr(unsafe.Pointer(MachineName)), uintptr(reserved), 0, 0)
handle = DevInfo(r0)
if handle == DevInfo(windows.InvalidHandle) {
if e1 != 0 {
@ -67,3 +68,15 @@ func SetupDiDestroyDeviceInfoList(DeviceInfoSet DevInfo) (err error) {
}
return
}
func setupDiGetDeviceInfoListDetail(DeviceInfoSet DevInfo, DeviceInfoSetDetailData *SP_DEVINFO_LIST_DETAIL_DATA) (err error) {
r1, _, e1 := syscall.Syscall(procSetupDiGetDeviceInfoListDetailW.Addr(), 2, uintptr(DeviceInfoSet), uintptr(unsafe.Pointer(DeviceInfoSetDetailData)), 0)
if r1 == 0 {
if e1 != 0 {
err = errnoErr(e1)
} else {
err = syscall.EINVAL
}
}
return
}