commit 244f6dcc1f007cb0517b5f659ec8a9f6dce2b562
author dschinazi <dschinazi@google.com> Mon May 06 15:45:16 2019 -0700
committer Copybara-Service <copybara-worker@google.com> Tue May 07 07:21:21 2019 -0700
tree 6127fde4d8821cd7c6d4d107135279cd2d09cb27
parent d0dbb546bbd671af3b20bc447db2d4fea2fb1b62

Support IETF RETRY from client

This CL parses the retry token, and updates our connection ID and crypters. Server-side support will come in a subsequent CL which will also add end to end tests.

gfe-relnote: Support IETF Retry packets from client in v99, protected by disabled v99 flag
PiperOrigin-RevId: 246911895
Change-Id: Icd5ecd22190fd18ad42882a66c3aa470640ce223

quic/core/quic_framer.h

diff --git a/quic/core/quic_framer.h b/quic/core/quic_framer.h
index b20ac92..decb456 100644
--- a/quic/core/quic_framer.h
+++ b/quic/core/quic_framer.h
@@ -13,6 +13,7 @@
 #include "net/third_party/quiche/src/quic/core/crypto/quic_decrypter.h"
 #include "net/third_party/quiche/src/quic/core/crypto/quic_encrypter.h"
 #include "net/third_party/quiche/src/quic/core/crypto/quic_random.h"
+#include "net/third_party/quiche/src/quic/core/quic_connection_id.h"
 #include "net/third_party/quiche/src/quic/core/quic_packets.h"
 #include "net/third_party/quiche/src/quic/platform/api/quic_endian.h"
 #include "net/third_party/quiche/src/quic/platform/api/quic_export.h"
@@ -92,6 +93,12 @@
   virtual void OnVersionNegotiationPacket(
       const QuicVersionNegotiationPacket& packet) = 0;
 
+  // Called only when |perspective_| is IS_CLIENT and a retry packet has been
+  // parsed.
+  virtual void OnRetryPacket(QuicConnectionId original_connection_id,
+                             QuicConnectionId new_connection_id,
+                             QuicStringPiece retry_token) = 0;
+
   // Called when all fields except packet number has been parsed, but has not
   // been authenticated. If it returns false, framing for this packet will
   // cease.
@@ -263,7 +270,7 @@
   }
 
   // Pass a UDP packet into the framer for parsing.
-  // Return true if the packet was processed succesfully. |packet| must be a
+  // Return true if the packet was processed successfully. |packet| must be a
   // single, complete UDP packet (not a frame of a packet).  This packet
   // might be null padded past the end of the payload, which will be correctly
   // ignored.
@@ -602,6 +609,9 @@
   bool ProcessVersionNegotiationPacket(QuicDataReader* reader,
                                        const QuicPacketHeader& header);
 
+  bool ProcessRetryPacket(QuicDataReader* reader,
+                          const QuicPacketHeader& header);
+
   bool MaybeProcessIetfInitialRetryToken(QuicDataReader* encrypted_reader,
                                          QuicPacketHeader* header);