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echo the offered version in IETF Version Negotiation Packets

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Marten Seemann
2017-11-12 14:37:43 +08:00
parent bf1ee17e67
commit 234d5aab36
4 changed files with 13 additions and 5 deletions
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2
server.go
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@@ -280,7 +280,7 @@ func (s *server) handlePacket(pconn net.PacketConn, remoteAddr net.Addr, packet
}
// send an IETF draft style Version Negotiation Packet, if the client sent an unsupported version with an IETF draft style header
if hdr.Type == protocol.PacketTypeInitial && !protocol.IsSupportedVersion(s.config.Versions, hdr.Version) {
_, err := pconn.WriteTo(wire.ComposeVersionNegotiation(hdr.ConnectionID, hdr.PacketNumber, s.config.Versions), remoteAddr)
_, err := pconn.WriteTo(wire.ComposeVersionNegotiation(hdr.ConnectionID, hdr.PacketNumber, hdr.Version, s.config.Versions), remoteAddr)
return err
}