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72 lines
2.3 KiB
Go
72 lines
2.3 KiB
Go
//go:build windows
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// +build windows
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package windowskext
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import "golang.org/x/sys/windows"
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const (
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METHOD_BUFFERED = 0
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METHOD_IN_DIRECT = 1
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METHOD_OUT_DIRECT = 2
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METHOD_NEITHER = 3
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SIOCTL_TYPE = 40000
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)
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var (
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IOCTL_VERSION = ctlCode(SIOCTL_TYPE, 0x800, METHOD_BUFFERED, windows.FILE_READ_DATA|windows.FILE_WRITE_DATA)
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IOCTL_SHUTDOWN_REQUEST = ctlCode(SIOCTL_TYPE, 0x801, METHOD_BUFFERED, windows.FILE_READ_DATA|windows.FILE_WRITE_DATA)
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IOCTL_RECV_VERDICT_REQ = ctlCode(SIOCTL_TYPE, 0x802, METHOD_BUFFERED, windows.FILE_READ_DATA|windows.FILE_WRITE_DATA)
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IOCTL_SET_VERDICT = ctlCode(SIOCTL_TYPE, 0x803, METHOD_BUFFERED, windows.FILE_READ_DATA|windows.FILE_WRITE_DATA)
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IOCTL_GET_PAYLOAD = ctlCode(SIOCTL_TYPE, 0x804, METHOD_BUFFERED, windows.FILE_READ_DATA|windows.FILE_WRITE_DATA)
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IOCTL_CLEAR_CACHE = ctlCode(SIOCTL_TYPE, 0x805, METHOD_BUFFERED, windows.FILE_READ_DATA|windows.FILE_WRITE_DATA)
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IOCTL_UPDATE_VERDICT = ctlCode(SIOCTL_TYPE, 0x806, METHOD_BUFFERED, windows.FILE_READ_DATA|windows.FILE_WRITE_DATA)
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IOCTL_GET_CONNECTIONS_STAT = ctlCode(SIOCTL_TYPE, 0x807, METHOD_BUFFERED, windows.FILE_READ_DATA|windows.FILE_WRITE_DATA)
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)
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func ctlCode(device_type, function, method, access uint32) uint32 {
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return (device_type << 16) | (access << 14) | (function << 2) | method
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}
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func deviceIOControlAsync(handle windows.Handle, code uint32, inData []byte, outData []byte) (*windows.Overlapped, error) {
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var inDataPtr *byte = nil
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var inDataSize uint32 = 0
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if inData != nil {
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inDataPtr = &inData[0]
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inDataSize = uint32(len(inData))
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}
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var outDataPtr *byte = nil
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var outDataSize uint32 = 0
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if outData != nil {
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outDataPtr = &outData[0]
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outDataSize = uint32(len(outData))
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}
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overlapped := &windows.Overlapped{}
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err := windows.DeviceIoControl(handle,
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code,
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inDataPtr, inDataSize,
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outDataPtr, outDataSize,
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nil, overlapped)
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if err != nil {
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return nil, err
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}
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return overlapped, nil
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}
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func deviceIOControl(handle windows.Handle, code uint32, inData []byte, outData []byte) (uint32, error) {
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overlapped, err := deviceIOControlAsync(handle, code, inData, outData)
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if err != nil {
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return 0, err
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}
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var bytesReturned uint32
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err = windows.GetOverlappedResult(handle, overlapped, &bytesReturned, true)
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return bytesReturned, err
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}
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