Adding an option for peers to negotiate the length of the QUIC

net/quic/quic_config.h

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NET_QUIC_QUIC_CONFIG_H_
 #define NET_QUIC_QUIC_CONFIG_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 50 matching lines @@
 class NET_EXPORT_PRIVATE QuicNegotiableValue : public QuicConfigValue {
  public:
   QuicNegotiableValue(QuicTag tag, QuicConfigPresence presence);
   ~QuicNegotiableValue() override;
 
   bool negotiated() const {
     return negotiated_;
   }
 
  protected:
+  void set_negotiated(bool negotiated) { negotiated_ = negotiated; }
+
+ private:
   bool negotiated_;
 };
 
 class NET_EXPORT_PRIVATE QuicNegotiableUint32 : public QuicNegotiableValue {
  public:
   // Default and max values default to 0.
   QuicNegotiableUint32(QuicTag name, QuicConfigPresence presence);
   ~QuicNegotiableUint32() override;
 
   // Sets the maximum possible value that can be achieved after negotiation and
@@ skipping 219 matching lines @@
   }
 
   void set_max_undecryptable_packets(size_t max_undecryptable_packets) {
     max_undecryptable_packets_ = max_undecryptable_packets;
   }
 
   size_t max_undecryptable_packets() const {
     return max_undecryptable_packets_;
   }
 
+  // Sets the peer's connection id length, in bytes.
+  void SetBytesForConnectionIdToSend(uint32 bytes);
+
+  bool HasReceivedBytesForConnectionId() const;
+
+  uint32 ReceivedBytesForConnectionId() const;
+
   // Sets the peer's default initial congestion window in packets.
   void SetInitialCongestionWindowToSend(size_t initial_window);
 
   bool HasReceivedInitialCongestionWindow() const;
 
   uint32 ReceivedInitialCongestionWindow() const;
 
   // Sets an estimated initial round trip time in us.
   void SetInitialRoundTripTimeUsToSend(size_t rtt_us);
 
@@ skipping 72 matching lines @@
   // Congestion control feedback type.
   QuicNegotiableTag congestion_feedback_;
   // Connection options.
   QuicFixedTagVector connection_options_;
   // Idle connection state lifetime
   QuicNegotiableUint32 idle_connection_state_lifetime_seconds_;
   // Keepalive timeout, or 0 to turn off keepalive probes
   QuicNegotiableUint32 keepalive_timeout_seconds_;
   // Maximum number of streams that the connection can support.
   QuicNegotiableUint32 max_streams_per_connection_;
+  // The number of bytes required for the connection ID.
+  QuicFixedUint32 bytes_for_connection_id_;
   // Initial congestion window in packets.
   QuicFixedUint32 initial_congestion_window_;
   // Initial round trip time estimate in microseconds.
   QuicFixedUint32 initial_round_trip_time_us_;
 
   // TODO(rjshade): Remove when removing QUIC_VERSION_19.
   // Initial flow control receive window in bytes.
   QuicFixedUint32 initial_flow_control_window_bytes_;
 
   // Initial stream flow control receive window in bytes.
   QuicFixedUint32 initial_stream_flow_control_window_bytes_;
   // Initial session flow control receive window in bytes.
   QuicFixedUint32 initial_session_flow_control_window_bytes_;
 
   // Socket receive buffer in bytes.
   QuicFixedUint32 socket_receive_buffer_;
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_CONFIG_H_