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Merge pull request #907 from yggdrasil-network/neilalexander/pmtud

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Neil Alexander 2022-04-03 17:45:33 +01:00 committed by GitHub
commit 6c4778bb67
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1 changed files with 3 additions and 3 deletions
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6
src/ipv6rwc/ipv6rwc.go
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@ -237,11 +237,11 @@ func (k *keyStore) readPC(p []byte) (int, error) {
k.mutex.Unlock()
if len(bs) > mtu {
// Using bs would make it leak off the stack, so copy to buf
buf := make([]byte, 40)
copy(buf, bs)
buf := make([]byte, 512)
cn := copy(buf, bs)
ptb := &icmp.PacketTooBig{
MTU: mtu,
Data: buf[:40],
Data: buf[:cn],
}
if packet, err := CreateICMPv6(buf[8:24], buf[24:40], ipv6.ICMPTypePacketTooBig, 0, ptb); err == nil {
_, _ = k.writePC(packet)