Add support for setupapi.SetupDiClassNameFromGuid()
Signed-off-by: Simon Rozman <simon@rozman.si>
This commit is contained in:
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90b6938ca0
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9635a0b3a6
@ -13,6 +13,7 @@ import (
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"golang.org/x/sys/windows/registry"
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)
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//sys setupDiClassNameFromGuid(ClassGUID *windows.GUID, ClassName *uint16, ClassNameSize uint32, RequiredSize *uint32) (err error) = setupapi.SetupDiClassNameFromGuidW
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//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
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//sys SetupDiDestroyDeviceInfoList(DeviceInfoSet DevInfo) (err error) = setupapi.SetupDiDestroyDeviceInfoList
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//sys setupDiGetDeviceInfoListDetail(DeviceInfoSet DevInfo, DeviceInfoSetDetailData *_SP_DEVINFO_LIST_DETAIL_DATA) (err error) = setupapi.SetupDiGetDeviceInfoListDetailW
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@ -24,6 +25,19 @@ import (
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//sys SetupDiSetClassInstallParams(DeviceInfoSet DevInfo, DeviceInfoData *SP_DEVINFO_DATA, ClassInstallParams *SP_CLASSINSTALL_HEADER, ClassInstallParamsSize uint32) (err error) = setupapi.SetupDiSetClassInstallParamsW
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//sys SetupDiCallClassInstaller(InstallFunction DI_FUNCTION, DeviceInfoSet DevInfo, DeviceInfoData *SP_DEVINFO_DATA) (err error) = setupapi.SetupDiCallClassInstaller
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// SetupDiClassNameFromGuid function retrieves the class name associated with a class GUID.
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func SetupDiClassNameFromGuid(ClassGUID *windows.GUID) (ClassName string, err error) {
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var _p0 [MAX_CLASS_NAME_LEN]uint16
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err = setupDiClassNameFromGuid(ClassGUID, &_p0[0], MAX_CLASS_NAME_LEN, nil)
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if err != nil {
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return
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}
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ClassName = windows.UTF16ToString(_p0[:])
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return
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}
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// SetupDiGetClassDevsEx function returns a handle to a device information set that contains requested device information elements for a local or a remote computer.
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func SetupDiGetClassDevsEx(ClassGUID *windows.GUID, Enumerator string, hwndParent uintptr, Flags DIGCF, DeviceInfoSet DevInfo, MachineName string) (handle DevInfo, err error) {
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var _p0 *uint16
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@ -6,6 +6,7 @@
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package setupapi
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import (
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"strings"
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"syscall"
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"testing"
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@ -19,6 +20,24 @@ func init() {
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computerName, _ = windows.ComputerName()
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}
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func TestSetupDiClassNameFromGuid(t *testing.T) {
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className, err := SetupDiClassNameFromGuid(&deviceClassNetGUID)
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if err != nil {
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t.Errorf("Error calling SetupDiClassNameFromGuid: %s", err.Error())
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} else if strings.ToLower(className) != "net" {
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t.Errorf("SetupDiClassNameFromGuid(%x) should return \"Net\"", deviceClassNetGUID)
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}
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_, err = SetupDiClassNameFromGuid(nil)
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if err == nil {
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t.Errorf("SetupDiClassNameFromGuid(nil) should fail")
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} else {
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if errWin, ok := err.(syscall.Errno); !ok || errWin != 1784 /*ERROR_INVALID_USER_BUFFER*/ {
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t.Errorf("SetupDiClassNameFromGuid(nil) should fail with ERROR_INVALID_USER_BUFFER")
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}
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}
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}
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func TestSetupDiGetClassDevsEx(t *testing.T) {
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devInfoList, err := SetupDiGetClassDevsEx(&deviceClassNetGUID, "PCI", 0, DIGCF_PRESENT, DevInfo(0), computerName)
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if err == nil {
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@ -9,6 +9,17 @@ import (
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"golang.org/x/sys/windows"
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)
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const (
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MAX_DEVICE_ID_LEN = 200
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MAX_DEVNODE_ID_LEN = MAX_DEVICE_ID_LEN
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MAX_GUID_STRING_LEN = 39 // 38 chars + terminator null
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MAX_CLASS_NAME_LEN = 32
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MAX_PROFILE_LEN = 80
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MAX_CONFIG_VALUE = 9999
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MAX_INSTANCE_VALUE = 9999
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CONFIGMG_VERSION = 0x0400
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)
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// DIGCF flags controll what is included in the device information set built by SetupDiGetClassDevs
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type DIGCF uint32
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@ -39,6 +39,7 @@ func errnoErr(e syscall.Errno) error {
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var (
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modsetupapi = windows.NewLazySystemDLL("setupapi.dll")
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procSetupDiClassNameFromGuidW = modsetupapi.NewProc("SetupDiClassNameFromGuidW")
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procSetupDiGetClassDevsExW = modsetupapi.NewProc("SetupDiGetClassDevsExW")
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procSetupDiDestroyDeviceInfoList = modsetupapi.NewProc("SetupDiDestroyDeviceInfoList")
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procSetupDiGetDeviceInfoListDetailW = modsetupapi.NewProc("SetupDiGetDeviceInfoListDetailW")
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@ -51,6 +52,18 @@ var (
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procSetupDiCallClassInstaller = modsetupapi.NewProc("SetupDiCallClassInstaller")
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)
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func setupDiClassNameFromGuid(ClassGUID *windows.GUID, ClassName *uint16, ClassNameSize uint32, RequiredSize *uint32) (err error) {
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r1, _, e1 := syscall.Syscall6(procSetupDiClassNameFromGuidW.Addr(), 4, uintptr(unsafe.Pointer(ClassGUID)), uintptr(unsafe.Pointer(ClassName)), uintptr(ClassNameSize), uintptr(unsafe.Pointer(RequiredSize)), 0, 0)
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if r1 == 0 {
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if e1 != 0 {
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err = errnoErr(e1)
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} else {
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err = syscall.EINVAL
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}
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}
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return
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}
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func setupDiGetClassDevsEx(ClassGUID *windows.GUID, Enumerator *uint16, hwndParent uintptr, Flags DIGCF, DeviceInfoSet DevInfo, MachineName *uint16, reserved uintptr) (handle DevInfo, err error) {
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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)
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handle = DevInfo(r0)
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