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wire: write configured value of max_udp_payload_size transport parameter (#4501)

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This commit is contained in:
Marten Seemann
2024-05-08 12:30:28 +08:00
committed by GitHub
parent 66f968b9ff
commit d1c1f18e4c
3 changed files with 15 additions and 9 deletions
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2
connection.go
View File

@@ -299,6 +299,7 @@ var newConnection = func(
MaxUniStreamNum: protocol.StreamNum(s.config.MaxIncomingUniStreams),
MaxAckDelay: protocol.MaxAckDelayInclGranularity,
AckDelayExponent: protocol.AckDelayExponent,
MaxUDPPayloadSize: protocol.MaxPacketBufferSize,
DisableActiveMigration: true,
StatelessResetToken: &statelessResetToken,
OriginalDestinationConnectionID: origDestConnID,
@@ -410,6 +411,7 @@ var newClientConnection = func(
MaxBidiStreamNum: protocol.StreamNum(s.config.MaxIncomingStreams),
MaxUniStreamNum: protocol.StreamNum(s.config.MaxIncomingUniStreams),
MaxAckDelay: protocol.MaxAckDelayInclGranularity,
MaxUDPPayloadSize: protocol.MaxPacketBufferSize,
AckDelayExponent: protocol.AckDelayExponent,
DisableActiveMigration: true,
// For interoperability with quic-go versions before May 2023, this value must be set to a value

14
internal/wire/transport_parameter_test.go
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@@ -28,7 +28,7 @@ func getRandomValueUpTo(max int64) uint64 {
}
func getRandomValue() uint64 {
return getRandomValueUpTo(math.MaxInt64)
return getRandomValueUpTo(quicvarint.Max)
}
var _ = Describe("Transport Parameters", func() {
@@ -102,7 +102,8 @@ var _ = Describe("Transport Parameters", func() {
RetrySourceConnectionID: &rcid,
AckDelayExponent: 13,
MaxAckDelay: 42 * time.Millisecond,
ActiveConnectionIDLimit: 2 + getRandomValueUpTo(math.MaxInt64-2),
ActiveConnectionIDLimit: 2 + getRandomValueUpTo(quicvarint.Max-2),
MaxUDPPayloadSize: 1200 + protocol.ByteCount(getRandomValueUpTo(quicvarint.Max-1200)),
MaxDatagramFrameSize: protocol.ByteCount(getRandomValue()),
}
data := params.Marshal(protocol.PerspectiveServer)
@@ -124,6 +125,7 @@ var _ = Describe("Transport Parameters", func() {
Expect(p.AckDelayExponent).To(Equal(uint8(13)))
Expect(p.MaxAckDelay).To(Equal(42 * time.Millisecond))
Expect(p.ActiveConnectionIDLimit).To(Equal(params.ActiveConnectionIDLimit))
Expect(p.MaxUDPPayloadSize).To(Equal(params.MaxUDPPayloadSize))
Expect(p.MaxDatagramFrameSize).To(Equal(params.MaxDatagramFrameSize))
})
@@ -176,13 +178,13 @@ var _ = Describe("Transport Parameters", func() {
}))
})
It("errors when the max_packet_size is too small", func() {
It("errors when the max_udp_payload_size is too small", func() {
b := quicvarint.Append(nil, uint64(maxUDPPayloadSizeParameterID))
b = quicvarint.Append(b, uint64(quicvarint.Len(1199)))
b = quicvarint.Append(b, 1199)
Expect((&TransportParameters{}).Unmarshal(b, protocol.PerspectiveServer)).To(MatchError(&qerr.TransportError{
ErrorCode: qerr.TransportParameterError,
ErrorMessage: "invalid value for max_packet_size: 1199 (minimum 1200)",
ErrorMessage: "invalid value for max_udp_payload_size: 1199 (minimum 1200)",
}))
})
@@ -499,7 +501,7 @@ var _ = Describe("Transport Parameters", func() {
InitialMaxData: protocol.ByteCount(getRandomValue()),
MaxBidiStreamNum: protocol.StreamNum(getRandomValueUpTo(int64(protocol.MaxStreamCount))),
MaxUniStreamNum: protocol.StreamNum(getRandomValueUpTo(int64(protocol.MaxStreamCount))),
ActiveConnectionIDLimit: 2 + getRandomValueUpTo(math.MaxInt64-2),
ActiveConnectionIDLimit: 2 + getRandomValueUpTo(quicvarint.Max-2),
MaxDatagramFrameSize: protocol.ByteCount(getRandomValueUpTo(int64(MaxDatagramSize))),
}
Expect(params.ValidFor0RTT(params)).To(BeTrue())
@@ -748,7 +750,7 @@ func benchmarkTransportParameters(b *testing.B, withPreferredAddress bool) {
RetrySourceConnectionID: &rcid,
AckDelayExponent: 13,
MaxAckDelay: 42 * time.Millisecond,
ActiveConnectionIDLimit: 2 + getRandomValueUpTo(math.MaxInt64-2),
ActiveConnectionIDLimit: 2 + getRandomValueUpTo(quicvarint.Max-2),
MaxDatagramFrameSize: protocol.ByteCount(getRandomValue()),
}
var token2 protocol.StatelessResetToken

8
internal/wire/transport_parameters.go
View File

@@ -302,7 +302,7 @@ func (p *TransportParameters) readNumericTransportParameter(b []byte, paramID tr
p.MaxIdleTimeout = max(protocol.MinRemoteIdleTimeout, time.Duration(val)*time.Millisecond)
case maxUDPPayloadSizeParameterID:
if val < 1200 {
return fmt.Errorf("invalid value for max_packet_size: %d (minimum 1200)", val)
return fmt.Errorf("invalid value for max_udp_payload_size: %d (minimum 1200)", val)
}
p.MaxUDPPayloadSize = protocol.ByteCount(val)
case ackDelayExponentParameterID:
@@ -357,8 +357,10 @@ func (p *TransportParameters) Marshal(pers protocol.Perspective) []byte {
b = p.marshalVarintParam(b, initialMaxStreamsUniParameterID, uint64(p.MaxUniStreamNum))
// idle_timeout
b = p.marshalVarintParam(b, maxIdleTimeoutParameterID, uint64(p.MaxIdleTimeout/time.Millisecond))
// max_packet_size
b = p.marshalVarintParam(b, maxUDPPayloadSizeParameterID, uint64(protocol.MaxPacketBufferSize))
// max_udp_payload_size
if p.MaxUDPPayloadSize > 0 {
b = p.marshalVarintParam(b, maxUDPPayloadSizeParameterID, uint64(p.MaxUDPPayloadSize))
}
// max_ack_delay
// Only send it if is different from the default value.
if p.MaxAckDelay != protocol.DefaultMaxAckDelay {