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tun: windows: send MTU update when forced MTU changes

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Otherwise the padding doesn't get updated.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Jason A. Donenfeld 2021-05-05 11:42:45 +02:00
parent 097af6e135
commit 69a42a4eef
1 changed files with 4 additions and 0 deletions
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4
tun/tun_windows.go
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@ -148,7 +148,11 @@ func (tun *NativeTun) MTU() (int, error) {
// TODO: This is a temporary hack. We really need to be monitoring the interface in real time and adapting to MTU changes. // TODO: This is a temporary hack. We really need to be monitoring the interface in real time and adapting to MTU changes.
func (tun *NativeTun) ForceMTU(mtu int) { func (tun *NativeTun) ForceMTU(mtu int) {
update := tun.forcedMTU != mtu
tun.forcedMTU = mtu tun.forcedMTU = mtu
if update {
tun.events <- EventMTUUpdate
}
} }
// Note: Read() and Write() assume the caller comes only from a single thread; there's no locking. // Note: Read() and Write() assume the caller comes only from a single thread; there's no locking.