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https://github.com/safing/portmaster
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50 lines
1.8 KiB
Go
50 lines
1.8 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_HELLO = ctl_code(SIOCTL_TYPE, 0x800, METHOD_BUFFERED, windows.FILE_READ_DATA|windows.FILE_WRITE_DATA)
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IOCTL_RECV_VERDICT_REQ_POLL = ctl_code(SIOCTL_TYPE, 0x801, METHOD_BUFFERED, windows.FILE_READ_DATA|windows.FILE_WRITE_DATA)
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IOCTL_RECV_VERDICT_REQ = ctl_code(SIOCTL_TYPE, 0x802, METHOD_BUFFERED, windows.FILE_READ_DATA|windows.FILE_WRITE_DATA)
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IOCTL_SET_VERDICT = ctl_code(SIOCTL_TYPE, 0x803, METHOD_BUFFERED, windows.FILE_READ_DATA|windows.FILE_WRITE_DATA)
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IOCTL_GET_PAYLOAD = ctl_code(SIOCTL_TYPE, 0x804, METHOD_BUFFERED, windows.FILE_READ_DATA|windows.FILE_WRITE_DATA)
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IOCTL_CLEAR_CACHE = ctl_code(SIOCTL_TYPE, 0x805, METHOD_BUFFERED, windows.FILE_READ_DATA|windows.FILE_WRITE_DATA)
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IOCTL_TEST = ctl_code(SIOCTL_TYPE, 0x806, METHOD_NEITHER, windows.FILE_READ_DATA|windows.FILE_WRITE_DATA)
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)
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func ctl_code(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 deviceIoControl(code uint32, data *byte, size uintptr) (uint32, error) {
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var bytesReturned uint32
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err := windows.DeviceIoControl(kextHandle,
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code,
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nil, 0,
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data, uint32(size),
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&bytesReturned, nil)
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return bytesReturned, err
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}
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func deviceIoControlBufferd(code uint32, inData *byte, inSize uintptr, outData *byte, outSize uintptr) (uint32, error) {
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var bytesReturned uint32
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err := windows.DeviceIoControl(kextHandle,
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code,
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inData, uint32(inSize),
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outData, uint32(outSize),
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&bytesReturned, nil)
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return bytesReturned, err
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}
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