Update QUIC transport parameters for draft-22
gfe-relnote: update QUIC transport parameters, protected by disabled QUIC_TLS flag
PiperOrigin-RevId: 258663796
Change-Id: Idabf673943c783b39940cdcc0ddb80db3adeaa3e
diff --git a/quic/core/crypto/transport_parameters.cc b/quic/core/crypto/transport_parameters.cc
index e5df9fe..247f407 100644
--- a/quic/core/crypto/transport_parameters.cc
+++ b/quic/core/crypto/transport_parameters.cc
@@ -40,6 +40,7 @@
kMaxAckDelay = 0xb,
kDisableMigration = 0xc,
kPreferredAddress = 0xd,
+ kActiveConnectionIdLimit = 0xe,
kGoogleQuicParam = 18257, // Used for non-standard Google-specific params.
kGoogleQuicVersion =
@@ -90,6 +91,8 @@
return "disable_migration";
case TransportParameters::kPreferredAddress:
return "preferred_address";
+ case TransportParameters::kActiveConnectionIdLimit:
+ return "active_connection_id_limit";
case TransportParameters::kGoogleQuicParam:
return "google";
case TransportParameters::kGoogleQuicVersion:
@@ -273,6 +276,7 @@
rv += " " + TransportParameterIdToString(kPreferredAddress) + " " +
preferred_address->ToString();
}
+ rv += active_connection_id_limit.ToString(/*for_use_in_list=*/true);
if (google_quic_params) {
rv += " " + TransportParameterIdToString(kGoogleQuicParam);
}
@@ -302,7 +306,8 @@
kDefaultMaxAckDelayTransportParam,
0,
kMaxMaxAckDelayTransportParam),
- disable_migration(false)
+ disable_migration(false),
+ active_connection_id_limit(kActiveConnectionIdLimit)
// Important note: any new transport parameters must be added
// to TransportParameters::AreValid, SerializeTransportParameters and
// ParseTransportParameters.
@@ -350,7 +355,8 @@
initial_max_stream_data_uni.IsValid() &&
initial_max_streams_bidi.IsValid() &&
initial_max_streams_uni.IsValid() &&
- ack_delay_exponent.IsValid() && max_ack_delay.IsValid();
+ ack_delay_exponent.IsValid() && max_ack_delay.IsValid() &&
+ active_connection_id_limit.IsValid();
if (!ok) {
QUIC_DLOG(ERROR) << "Invalid transport parameters " << *this;
}
@@ -431,7 +437,8 @@
!in.initial_max_streams_bidi.WriteToCbb(¶ms) ||
!in.initial_max_streams_uni.WriteToCbb(¶ms) ||
!in.ack_delay_exponent.WriteToCbb(¶ms) ||
- !in.max_ack_delay.WriteToCbb(¶ms)) {
+ !in.max_ack_delay.WriteToCbb(¶ms) ||
+ !in.active_connection_id_limit.WriteToCbb(¶ms)) {
QUIC_BUG << "Failed to write integers for " << in;
return false;
}
@@ -692,6 +699,9 @@
QuicMakeUnique<TransportParameters::PreferredAddress>(
preferred_address);
} break;
+ case TransportParameters::kActiveConnectionIdLimit:
+ parse_success = out->active_connection_id_limit.ReadFromCbs(&value);
+ break;
case TransportParameters::kGoogleQuicParam: {
if (out->google_quic_params) {
QUIC_DLOG(ERROR) << "Received a second Google parameter";
diff --git a/quic/core/crypto/transport_parameters.h b/quic/core/crypto/transport_parameters.h
index 27b5fe7..368a7bf 100644
--- a/quic/core/crypto/transport_parameters.h
+++ b/quic/core/crypto/transport_parameters.h
@@ -161,6 +161,10 @@
// Used to effect a change in server address at the end of the handshake.
std::unique_ptr<PreferredAddress> preferred_address;
+ // Maximum number of connection IDs from the peer that an endpoint is willing
+ // to store.
+ IntegerParameter active_connection_id_limit;
+
// Transport parameters used by Google QUIC but not IETF QUIC. This is
// serialized into a TransportParameter struct with a TransportParameterId of
// kGoogleQuicParamId.
diff --git a/quic/core/crypto/transport_parameters_test.cc b/quic/core/crypto/transport_parameters_test.cc
index 7776af1..3f7e339 100644
--- a/quic/core/crypto/transport_parameters_test.cc
+++ b/quic/core/crypto/transport_parameters_test.cc
@@ -36,6 +36,7 @@
const uint64_t kFakeAckDelayExponent = 10;
const uint64_t kFakeMaxAckDelay = 51;
const bool kFakeDisableMigration = true;
+const uint64_t kFakeActiveConnectionIdLimit = 52;
const QuicConnectionId kFakePreferredConnectionId = TestConnectionId(0xBEEF);
const uint8_t kFakePreferredStatelessResetTokenData[16] = {
0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
@@ -96,6 +97,8 @@
orig_params.ack_delay_exponent.set_value(kFakeAckDelayExponent);
orig_params.max_ack_delay.set_value(kFakeMaxAckDelay);
orig_params.disable_migration = kFakeDisableMigration;
+ orig_params.active_connection_id_limit.set_value(
+ kFakeActiveConnectionIdLimit);
std::vector<uint8_t> serialized;
ASSERT_TRUE(SerializeTransportParameters(orig_params, &serialized));
@@ -126,6 +129,8 @@
EXPECT_EQ(kFakeAckDelayExponent, new_params.ack_delay_exponent.value());
EXPECT_EQ(kFakeMaxAckDelay, new_params.max_ack_delay.value());
EXPECT_EQ(kFakeDisableMigration, new_params.disable_migration);
+ EXPECT_EQ(kFakeActiveConnectionIdLimit,
+ new_params.active_connection_id_limit.value());
}
TEST_F(TransportParametersTest, RoundTripServer) {
@@ -151,6 +156,8 @@
orig_params.max_ack_delay.set_value(kFakeMaxAckDelay);
orig_params.disable_migration = kFakeDisableMigration;
orig_params.preferred_address = CreateFakePreferredAddress();
+ orig_params.active_connection_id_limit.set_value(
+ kFakeActiveConnectionIdLimit);
std::vector<uint8_t> serialized;
ASSERT_TRUE(SerializeTransportParameters(orig_params, &serialized));
@@ -192,6 +199,8 @@
new_params.preferred_address->connection_id);
EXPECT_EQ(kFakePreferredStatelessResetToken,
new_params.preferred_address->stateless_reset_token);
+ EXPECT_EQ(kFakeActiveConnectionIdLimit,
+ new_params.active_connection_id_limit.value());
}
TEST_F(TransportParametersTest, IsValid) {
@@ -252,7 +261,7 @@
TEST_F(TransportParametersTest, ParseClientParams) {
// clang-format off
const uint8_t kClientParams[] = {
- 0x00, 0x44, // length of the parameters array that follows
+ 0x00, 0x49, // length of the parameters array that follows
// idle_timeout
0x00, 0x01, // parameter id
0x00, 0x02, // length
@@ -296,6 +305,10 @@
// disable_migration
0x00, 0x0c, // parameter id
0x00, 0x00, // length
+ // active_connection_id_limit
+ 0x00, 0x0e, // parameter id
+ 0x00, 0x01, // length
+ 0x34, // value
// Google version extension
0x47, 0x52, // parameter id
0x00, 0x04, // length
@@ -330,6 +343,8 @@
EXPECT_EQ(kFakeAckDelayExponent, new_params.ack_delay_exponent.value());
EXPECT_EQ(kFakeMaxAckDelay, new_params.max_ack_delay.value());
EXPECT_EQ(kFakeDisableMigration, new_params.disable_migration);
+ EXPECT_EQ(kFakeActiveConnectionIdLimit,
+ new_params.active_connection_id_limit.value());
}
TEST_F(TransportParametersTest, ParseClientParamsFailsWithStatelessResetToken) {
@@ -418,7 +433,7 @@
TEST_F(TransportParametersTest, ParseServerParams) {
// clang-format off
const uint8_t kServerParams[] = {
- 0x00, 0xa2, // length of parameters array that follows
+ 0x00, 0xa7, // length of parameters array that follows
// original_connection_id
0x00, 0x00, // parameter id
0x00, 0x08, // length
@@ -483,6 +498,10 @@
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xBE, 0xEF, // connection ID
0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, // stateless reset token
0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F,
+ // active_connection_id_limit
+ 0x00, 0x0e, // parameter id
+ 0x00, 0x01, // length
+ 0x34, // value
// Google version extension
0x47, 0x52, // parameter id
0x00, 0x0d, // length
@@ -531,6 +550,8 @@
new_params.preferred_address->connection_id);
EXPECT_EQ(kFakePreferredStatelessResetToken,
new_params.preferred_address->stateless_reset_token);
+ EXPECT_EQ(kFakeActiveConnectionIdLimit,
+ new_params.active_connection_id_limit.value());
}
TEST_F(TransportParametersTest, ParseServerParametersRepeated) {
