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setupapi: add DeviceInstanceID()

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This commit is contained in:
Jason A. Donenfeld
2019-06-09 17:22:59 +02:00
parent eaf17becfa
commit bb3f1932fa
3 changed files with 41 additions and 0 deletions
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23
tun/wintun/setupapi/setupapi_windows.go
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@@ -364,6 +364,29 @@ func (deviceInfoSet DevInfo) DeviceInstallParams(deviceInfoData *DevInfoData) (*
return SetupDiGetDeviceInstallParams(deviceInfoSet, deviceInfoData)
}
//sys setupDiGetDeviceInstanceId(deviceInfoSet DevInfo, deviceInfoData *DevInfoData, instanceId *uint16, instanceIdSize uint32, instanceIdRequiredSize *uint32) (err error) = setupapi.SetupDiGetDeviceInstanceIdW
// SetupDiGetDeviceInstanceId function retrieves the instance ID of the device
func SetupDiGetDeviceInstanceId(deviceInfoSet DevInfo, deviceInfoData *DevInfoData) (string, error) {
reqSize := uint32(1024)
for {
buf := make([]uint16, reqSize)
err := setupDiGetDeviceInstanceId(deviceInfoSet, deviceInfoData, &buf[0], uint32(len(buf)), &reqSize)
if err == windows.ERROR_INSUFFICIENT_BUFFER {
continue
}
if err != nil {
return "", err
}
return windows.UTF16ToString(buf), nil
}
}
// DeviceInstanceID method retrieves the instance ID of the device.
func (deviceInfoSet DevInfo) DeviceInstanceID(deviceInfoData *DevInfoData) (string, error) {
return SetupDiGetDeviceInstanceId(deviceInfoSet, deviceInfoData)
}
// SetupDiGetClassInstallParams function retrieves class installation parameters for a device information set or a particular device information element.
//sys SetupDiGetClassInstallParams(deviceInfoSet DevInfo, deviceInfoData *DevInfoData, classInstallParams *ClassInstallHeader, classInstallParamsSize uint32, requiredSize *uint32) (err error) = setupapi.SetupDiGetClassInstallParamsW