Do not queue coalesced undecryptable packets twice
This CL adds QuicFramerVisitorInterface::OnUndecryptablePacket and uses it to send undecryptable packets from QuicFramer to QuicConnection, instead of the previous mechanism which relied on QuicFramer::ProcessPacket returning QUIC_DECRYPTION_FAILURE. The new mechanism has the following advantages:
1) It only sends the current packet, without any subsequent coalesced packets
2) It knows if the decryption failed due to a missing key, which allows us to avoid buffering packets that we know we will never be able to decrypt
This mechanism is enabled for versions that KnowsWhichDecrypterToUse() (which are v47+ || TLS, none of which are currently enabled) and when the new flag quic_framer_uses_undecryptable_upcall is true - the intent being to enable this for all versions once the flag protection process is complete.
This CL also adds QuicDataReader::FullPayload which is required to extract only this packet without further coalesced packets, and associated test.
gfe-relnote: do not queue coalesced undecryptable packets twice, protected by disabled flag gfe2_restart_flag_quic_framer_uses_undecryptable_upcall
PiperOrigin-RevId: 263658152
Change-Id: I66aca2138e353306a5cf4fa9ec259680f4115890
diff --git a/quic/core/quic_ietf_framer_test.cc b/quic/core/quic_ietf_framer_test.cc
index f0872b6..9a2b562 100644
--- a/quic/core/quic_ietf_framer_test.cc
+++ b/quic/core/quic_ietf_framer_test.cc
@@ -122,6 +122,10 @@
void OnCoalescedPacket(const QuicEncryptedPacket& /*packet*/) override {}
+ void OnUndecryptablePacket(const QuicEncryptedPacket& /*packet*/,
+ EncryptionLevel /*decryption_level*/,
+ bool /*has_decryption_key*/) override {}
+
bool OnStreamFrame(const QuicStreamFrame& /*frame*/) override { return true; }
bool OnCryptoFrame(const QuicCryptoFrame& /*frame*/) override { return true; }
