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wintun: add LUID accessor

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This commit is contained in:
Jason A. Donenfeld 2019-05-10 21:30:23 +02:00
parent 7a8553aef0
commit 2d847a38a2
1 changed files with 7 additions and 0 deletions
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7
tun/tun_windows.go
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@ -373,3 +373,10 @@ func (tun *NativeTun) Write(buff []byte, offset int) (int, error) {
func (tun *NativeTun) GUID() windows.GUID {
return tun.wt.CfgInstanceID
}
//
// GUID returns Windows adapter instance ID.
//
func (tun *NativeTun) LUID() uint64 {
return ((uint64(tun.wt.LUIDIndex) & ((1 << 24) - 1)) << 24) | ((uint64(tun.wt.IfType) & ((1 << 16) - 1)) << 48)
}