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cut packets at the payload length when receiving

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Marten Seemann
2018-04-21 19:31:36 +09:00
parent a7f550ae0f
commit cc536fb895
4 changed files with 109 additions and 24 deletions
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8
server.go
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@@ -308,6 +308,14 @@ func (s *server) handlePacket(pconn net.PacketConn, remoteAddr net.Addr, packet
hdr.Raw = packet[:len(packet)-r.Len()]
packetData := packet[len(packet)-r.Len():]
if hdr.IsLongHeader {
if protocol.ByteCount(len(packetData)) < hdr.PayloadLen {
return fmt.Errorf("packet payload (%d bytes) is smaller than the expected payload length (%d bytes)", len(packetData), hdr.PayloadLen)
}
packetData = packetData[:int(hdr.PayloadLen)]
// TODO(#1312): implement parsing of compound packets
}
if hdr.Type == protocol.PacketTypeInitial {
if s.supportsTLS {
go s.serverTLS.HandleInitial(remoteAddr, hdr, packetData)