Ability to append noise to outgoing packets

[govpn.git] / transport.go

diff --git a/transport.go b/transport.go
index 4277628b3fb87ab1d9510152a83b31b129d6e946..a595130a6b1d2ffec7a3385033e6439bcc38d696 100644 (file)
--- a/transport.go
+++ b/transport.go
@@ -301,7 +301,11 @@ func (p *Peer) EthProcess(ethPkt []byte, conn WriteToer, ready chan struct{}) {
        salsa20.XORKeyStream(p.buf, p.buf, p.nonce, p.Key)
        copy(p.buf[S20BS-NonceSize:S20BS], p.nonce)
        copy(p.keyAuth[:], p.buf[:KeySize])
-       p.frame = p.buf[S20BS-NonceSize : S20BS+PktSizeSize+size]
+       if NoiseEnable {
+               p.frame = p.buf[S20BS-NonceSize : S20BS+MTU-NonceSize-poly1305.TagSize]
+       } else {
+               p.frame = p.buf[S20BS-NonceSize : S20BS+PktSizeSize+size]
+       }
        poly1305.Sum(p.tag, p.frame, p.keyAuth)
 
        p.FramesOut++