| // 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. |
| |
| #include "net/third_party/quiche/src/quic/core/quic_config.h" |
| |
| #include <algorithm> |
| #include <cstring> |
| #include <limits> |
| #include <string> |
| #include <utility> |
| |
| #include "absl/base/attributes.h" |
| #include "absl/strings/string_view.h" |
| #include "net/third_party/quiche/src/quic/core/crypto/crypto_handshake_message.h" |
| #include "net/third_party/quiche/src/quic/core/crypto/crypto_protocol.h" |
| #include "net/third_party/quiche/src/quic/core/quic_connection_id.h" |
| #include "net/third_party/quiche/src/quic/core/quic_constants.h" |
| #include "net/third_party/quiche/src/quic/core/quic_socket_address_coder.h" |
| #include "net/third_party/quiche/src/quic/core/quic_utils.h" |
| #include "net/third_party/quiche/src/quic/platform/api/quic_bug_tracker.h" |
| #include "net/third_party/quiche/src/quic/platform/api/quic_flag_utils.h" |
| #include "net/third_party/quiche/src/quic/platform/api/quic_flags.h" |
| #include "net/third_party/quiche/src/quic/platform/api/quic_logging.h" |
| #include "net/third_party/quiche/src/quic/platform/api/quic_socket_address.h" |
| #include "net/third_party/quiche/src/quic/platform/api/quic_uint128.h" |
| |
| namespace quic { |
| |
| // Reads the value corresponding to |name_| from |msg| into |out|. If the |
| // |name_| is absent in |msg| and |presence| is set to OPTIONAL |out| is set |
| // to |default_value|. |
| QuicErrorCode ReadUint32(const CryptoHandshakeMessage& msg, |
| QuicTag tag, |
| QuicConfigPresence presence, |
| uint32_t default_value, |
| uint32_t* out, |
| std::string* error_details) { |
| DCHECK(error_details != nullptr); |
| QuicErrorCode error = msg.GetUint32(tag, out); |
| switch (error) { |
| case QUIC_CRYPTO_MESSAGE_PARAMETER_NOT_FOUND: |
| if (presence == PRESENCE_REQUIRED) { |
| *error_details = "Missing " + QuicTagToString(tag); |
| break; |
| } |
| error = QUIC_NO_ERROR; |
| *out = default_value; |
| break; |
| case QUIC_NO_ERROR: |
| break; |
| default: |
| *error_details = "Bad " + QuicTagToString(tag); |
| break; |
| } |
| return error; |
| } |
| |
| QuicConfigValue::QuicConfigValue(QuicTag tag, QuicConfigPresence presence) |
| : tag_(tag), presence_(presence) {} |
| QuicConfigValue::~QuicConfigValue() {} |
| |
| QuicFixedUint32::QuicFixedUint32(QuicTag tag, QuicConfigPresence presence) |
| : QuicConfigValue(tag, presence), |
| has_send_value_(false), |
| has_receive_value_(false) {} |
| QuicFixedUint32::~QuicFixedUint32() {} |
| |
| bool QuicFixedUint32::HasSendValue() const { |
| return has_send_value_; |
| } |
| |
| uint32_t QuicFixedUint32::GetSendValue() const { |
| QUIC_BUG_IF(!has_send_value_) |
| << "No send value to get for tag:" << QuicTagToString(tag_); |
| return send_value_; |
| } |
| |
| void QuicFixedUint32::SetSendValue(uint32_t value) { |
| has_send_value_ = true; |
| send_value_ = value; |
| } |
| |
| bool QuicFixedUint32::HasReceivedValue() const { |
| return has_receive_value_; |
| } |
| |
| uint32_t QuicFixedUint32::GetReceivedValue() const { |
| QUIC_BUG_IF(!has_receive_value_) |
| << "No receive value to get for tag:" << QuicTagToString(tag_); |
| return receive_value_; |
| } |
| |
| void QuicFixedUint32::SetReceivedValue(uint32_t value) { |
| has_receive_value_ = true; |
| receive_value_ = value; |
| } |
| |
| void QuicFixedUint32::ToHandshakeMessage(CryptoHandshakeMessage* out) const { |
| if (tag_ == 0) { |
| QUIC_BUG |
| << "This parameter does not support writing to CryptoHandshakeMessage"; |
| return; |
| } |
| if (has_send_value_) { |
| out->SetValue(tag_, send_value_); |
| } |
| } |
| |
| QuicErrorCode QuicFixedUint32::ProcessPeerHello( |
| const CryptoHandshakeMessage& peer_hello, |
| HelloType /*hello_type*/, |
| std::string* error_details) { |
| DCHECK(error_details != nullptr); |
| if (tag_ == 0) { |
| *error_details = |
| "This parameter does not support reading from CryptoHandshakeMessage"; |
| QUIC_BUG << *error_details; |
| return QUIC_CRYPTO_MESSAGE_PARAMETER_NOT_FOUND; |
| } |
| QuicErrorCode error = peer_hello.GetUint32(tag_, &receive_value_); |
| switch (error) { |
| case QUIC_CRYPTO_MESSAGE_PARAMETER_NOT_FOUND: |
| if (presence_ == PRESENCE_OPTIONAL) { |
| return QUIC_NO_ERROR; |
| } |
| *error_details = "Missing " + QuicTagToString(tag_); |
| break; |
| case QUIC_NO_ERROR: |
| has_receive_value_ = true; |
| break; |
| default: |
| *error_details = "Bad " + QuicTagToString(tag_); |
| break; |
| } |
| return error; |
| } |
| |
| QuicFixedUint62::QuicFixedUint62(QuicTag name, QuicConfigPresence presence) |
| : QuicConfigValue(name, presence), |
| has_send_value_(false), |
| has_receive_value_(false) {} |
| |
| QuicFixedUint62::~QuicFixedUint62() {} |
| |
| bool QuicFixedUint62::HasSendValue() const { |
| return has_send_value_; |
| } |
| |
| uint64_t QuicFixedUint62::GetSendValue() const { |
| if (!has_send_value_) { |
| QUIC_BUG << "No send value to get for tag:" << QuicTagToString(tag_); |
| return 0; |
| } |
| return send_value_; |
| } |
| |
| void QuicFixedUint62::SetSendValue(uint64_t value) { |
| if (value > kVarInt62MaxValue) { |
| QUIC_BUG << "QuicFixedUint62 invalid value " << value; |
| value = kVarInt62MaxValue; |
| } |
| has_send_value_ = true; |
| send_value_ = value; |
| } |
| |
| bool QuicFixedUint62::HasReceivedValue() const { |
| return has_receive_value_; |
| } |
| |
| uint64_t QuicFixedUint62::GetReceivedValue() const { |
| if (!has_receive_value_) { |
| QUIC_BUG << "No receive value to get for tag:" << QuicTagToString(tag_); |
| return 0; |
| } |
| return receive_value_; |
| } |
| |
| void QuicFixedUint62::SetReceivedValue(uint64_t value) { |
| has_receive_value_ = true; |
| receive_value_ = value; |
| } |
| |
| void QuicFixedUint62::ToHandshakeMessage(CryptoHandshakeMessage* out) const { |
| if (!has_send_value_) { |
| return; |
| } |
| uint32_t send_value32; |
| if (send_value_ > std::numeric_limits<uint32_t>::max()) { |
| QUIC_BUG << "Attempting to send " << send_value_ |
| << " for tag:" << QuicTagToString(tag_); |
| send_value32 = std::numeric_limits<uint32_t>::max(); |
| } else { |
| send_value32 = static_cast<uint32_t>(send_value_); |
| } |
| out->SetValue(tag_, send_value32); |
| } |
| |
| QuicErrorCode QuicFixedUint62::ProcessPeerHello( |
| const CryptoHandshakeMessage& peer_hello, |
| HelloType /*hello_type*/, |
| std::string* error_details) { |
| DCHECK(error_details != nullptr); |
| uint32_t receive_value32; |
| QuicErrorCode error = peer_hello.GetUint32(tag_, &receive_value32); |
| // GetUint32 is guaranteed to always initialize receive_value32. |
| receive_value_ = receive_value32; |
| switch (error) { |
| case QUIC_CRYPTO_MESSAGE_PARAMETER_NOT_FOUND: |
| if (presence_ == PRESENCE_OPTIONAL) { |
| return QUIC_NO_ERROR; |
| } |
| *error_details = "Missing " + QuicTagToString(tag_); |
| break; |
| case QUIC_NO_ERROR: |
| has_receive_value_ = true; |
| break; |
| default: |
| *error_details = "Bad " + QuicTagToString(tag_); |
| break; |
| } |
| return error; |
| } |
| |
| QuicFixedUint128::QuicFixedUint128(QuicTag tag, QuicConfigPresence presence) |
| : QuicConfigValue(tag, presence), |
| has_send_value_(false), |
| has_receive_value_(false) {} |
| QuicFixedUint128::~QuicFixedUint128() {} |
| |
| bool QuicFixedUint128::HasSendValue() const { |
| return has_send_value_; |
| } |
| |
| QuicUint128 QuicFixedUint128::GetSendValue() const { |
| QUIC_BUG_IF(!has_send_value_) |
| << "No send value to get for tag:" << QuicTagToString(tag_); |
| return send_value_; |
| } |
| |
| void QuicFixedUint128::SetSendValue(QuicUint128 value) { |
| has_send_value_ = true; |
| send_value_ = value; |
| } |
| |
| bool QuicFixedUint128::HasReceivedValue() const { |
| return has_receive_value_; |
| } |
| |
| QuicUint128 QuicFixedUint128::GetReceivedValue() const { |
| QUIC_BUG_IF(!has_receive_value_) |
| << "No receive value to get for tag:" << QuicTagToString(tag_); |
| return receive_value_; |
| } |
| |
| void QuicFixedUint128::SetReceivedValue(QuicUint128 value) { |
| has_receive_value_ = true; |
| receive_value_ = value; |
| } |
| |
| void QuicFixedUint128::ToHandshakeMessage(CryptoHandshakeMessage* out) const { |
| if (has_send_value_) { |
| out->SetValue(tag_, send_value_); |
| } |
| } |
| |
| QuicErrorCode QuicFixedUint128::ProcessPeerHello( |
| const CryptoHandshakeMessage& peer_hello, |
| HelloType /*hello_type*/, |
| std::string* error_details) { |
| DCHECK(error_details != nullptr); |
| QuicErrorCode error = peer_hello.GetUint128(tag_, &receive_value_); |
| switch (error) { |
| case QUIC_CRYPTO_MESSAGE_PARAMETER_NOT_FOUND: |
| if (presence_ == PRESENCE_OPTIONAL) { |
| return QUIC_NO_ERROR; |
| } |
| *error_details = "Missing " + QuicTagToString(tag_); |
| break; |
| case QUIC_NO_ERROR: |
| has_receive_value_ = true; |
| break; |
| default: |
| *error_details = "Bad " + QuicTagToString(tag_); |
| break; |
| } |
| return error; |
| } |
| |
| QuicFixedTagVector::QuicFixedTagVector(QuicTag name, |
| QuicConfigPresence presence) |
| : QuicConfigValue(name, presence), |
| has_send_values_(false), |
| has_receive_values_(false) {} |
| |
| QuicFixedTagVector::QuicFixedTagVector(const QuicFixedTagVector& other) = |
| default; |
| |
| QuicFixedTagVector::~QuicFixedTagVector() {} |
| |
| bool QuicFixedTagVector::HasSendValues() const { |
| return has_send_values_; |
| } |
| |
| const QuicTagVector& QuicFixedTagVector::GetSendValues() const { |
| QUIC_BUG_IF(!has_send_values_) |
| << "No send values to get for tag:" << QuicTagToString(tag_); |
| return send_values_; |
| } |
| |
| void QuicFixedTagVector::SetSendValues(const QuicTagVector& values) { |
| has_send_values_ = true; |
| send_values_ = values; |
| } |
| |
| bool QuicFixedTagVector::HasReceivedValues() const { |
| return has_receive_values_; |
| } |
| |
| const QuicTagVector& QuicFixedTagVector::GetReceivedValues() const { |
| QUIC_BUG_IF(!has_receive_values_) |
| << "No receive value to get for tag:" << QuicTagToString(tag_); |
| return receive_values_; |
| } |
| |
| void QuicFixedTagVector::SetReceivedValues(const QuicTagVector& values) { |
| has_receive_values_ = true; |
| receive_values_ = values; |
| } |
| |
| void QuicFixedTagVector::ToHandshakeMessage(CryptoHandshakeMessage* out) const { |
| if (has_send_values_) { |
| out->SetVector(tag_, send_values_); |
| } |
| } |
| |
| QuicErrorCode QuicFixedTagVector::ProcessPeerHello( |
| const CryptoHandshakeMessage& peer_hello, |
| HelloType /*hello_type*/, |
| std::string* error_details) { |
| DCHECK(error_details != nullptr); |
| QuicTagVector values; |
| QuicErrorCode error = peer_hello.GetTaglist(tag_, &values); |
| switch (error) { |
| case QUIC_CRYPTO_MESSAGE_PARAMETER_NOT_FOUND: |
| if (presence_ == PRESENCE_OPTIONAL) { |
| return QUIC_NO_ERROR; |
| } |
| *error_details = "Missing " + QuicTagToString(tag_); |
| break; |
| case QUIC_NO_ERROR: |
| QUIC_DVLOG(1) << "Received Connection Option tags from receiver."; |
| has_receive_values_ = true; |
| receive_values_.insert(receive_values_.end(), values.begin(), |
| values.end()); |
| break; |
| default: |
| *error_details = "Bad " + QuicTagToString(tag_); |
| break; |
| } |
| return error; |
| } |
| |
| QuicFixedSocketAddress::QuicFixedSocketAddress(QuicTag tag, |
| QuicConfigPresence presence) |
| : QuicConfigValue(tag, presence), |
| has_send_value_(false), |
| has_receive_value_(false) {} |
| |
| QuicFixedSocketAddress::~QuicFixedSocketAddress() {} |
| |
| bool QuicFixedSocketAddress::HasSendValue() const { |
| return has_send_value_; |
| } |
| |
| const QuicSocketAddress& QuicFixedSocketAddress::GetSendValue() const { |
| QUIC_BUG_IF(!has_send_value_) |
| << "No send value to get for tag:" << QuicTagToString(tag_); |
| return send_value_; |
| } |
| |
| void QuicFixedSocketAddress::SetSendValue(const QuicSocketAddress& value) { |
| has_send_value_ = true; |
| send_value_ = value; |
| } |
| |
| bool QuicFixedSocketAddress::HasReceivedValue() const { |
| return has_receive_value_; |
| } |
| |
| const QuicSocketAddress& QuicFixedSocketAddress::GetReceivedValue() const { |
| QUIC_BUG_IF(!has_receive_value_) |
| << "No receive value to get for tag:" << QuicTagToString(tag_); |
| return receive_value_; |
| } |
| |
| void QuicFixedSocketAddress::SetReceivedValue(const QuicSocketAddress& value) { |
| has_receive_value_ = true; |
| receive_value_ = value; |
| } |
| |
| void QuicFixedSocketAddress::ToHandshakeMessage( |
| CryptoHandshakeMessage* out) const { |
| if (has_send_value_) { |
| QuicSocketAddressCoder address_coder(send_value_); |
| out->SetStringPiece(tag_, address_coder.Encode()); |
| } |
| } |
| |
| QuicErrorCode QuicFixedSocketAddress::ProcessPeerHello( |
| const CryptoHandshakeMessage& peer_hello, |
| HelloType /*hello_type*/, |
| std::string* error_details) { |
| absl::string_view address; |
| if (!peer_hello.GetStringPiece(tag_, &address)) { |
| if (presence_ == PRESENCE_REQUIRED) { |
| *error_details = "Missing " + QuicTagToString(tag_); |
| return QUIC_CRYPTO_MESSAGE_PARAMETER_NOT_FOUND; |
| } |
| } else { |
| QuicSocketAddressCoder address_coder; |
| if (address_coder.Decode(address.data(), address.length())) { |
| SetReceivedValue( |
| QuicSocketAddress(address_coder.ip(), address_coder.port())); |
| } |
| } |
| return QUIC_NO_ERROR; |
| } |
| |
| QuicConfig::QuicConfig() |
| : negotiated_(false), |
| max_time_before_crypto_handshake_(QuicTime::Delta::Zero()), |
| max_idle_time_before_crypto_handshake_(QuicTime::Delta::Zero()), |
| max_undecryptable_packets_(0), |
| connection_options_(kCOPT, PRESENCE_OPTIONAL), |
| client_connection_options_(kCLOP, PRESENCE_OPTIONAL), |
| max_idle_timeout_to_send_(QuicTime::Delta::Infinite()), |
| max_bidirectional_streams_(kMIBS, PRESENCE_REQUIRED), |
| max_unidirectional_streams_(kMIUS, PRESENCE_OPTIONAL), |
| bytes_for_connection_id_(kTCID, PRESENCE_OPTIONAL), |
| initial_round_trip_time_us_(kIRTT, PRESENCE_OPTIONAL), |
| initial_max_stream_data_bytes_incoming_bidirectional_(0, |
| PRESENCE_OPTIONAL), |
| initial_max_stream_data_bytes_outgoing_bidirectional_(0, |
| PRESENCE_OPTIONAL), |
| initial_max_stream_data_bytes_unidirectional_(0, PRESENCE_OPTIONAL), |
| initial_stream_flow_control_window_bytes_(kSFCW, PRESENCE_OPTIONAL), |
| initial_session_flow_control_window_bytes_(kCFCW, PRESENCE_OPTIONAL), |
| connection_migration_disabled_(kNCMR, PRESENCE_OPTIONAL), |
| support_handshake_done_(0, PRESENCE_OPTIONAL), |
| key_update_supported_remotely_(false), |
| key_update_supported_locally_(false), |
| alternate_server_address_ipv6_(kASAD, PRESENCE_OPTIONAL), |
| alternate_server_address_ipv4_(kASAD, PRESENCE_OPTIONAL), |
| stateless_reset_token_(kSRST, PRESENCE_OPTIONAL), |
| max_ack_delay_ms_(kMAD, PRESENCE_OPTIONAL), |
| min_ack_delay_ms_(0, PRESENCE_OPTIONAL), |
| ack_delay_exponent_(kADE, PRESENCE_OPTIONAL), |
| max_udp_payload_size_(0, PRESENCE_OPTIONAL), |
| max_datagram_frame_size_(0, PRESENCE_OPTIONAL), |
| active_connection_id_limit_(0, PRESENCE_OPTIONAL) { |
| SetDefaults(); |
| } |
| |
| QuicConfig::QuicConfig(const QuicConfig& other) = default; |
| |
| QuicConfig::~QuicConfig() {} |
| |
| bool QuicConfig::SetInitialReceivedConnectionOptions( |
| const QuicTagVector& tags) { |
| if (HasReceivedConnectionOptions()) { |
| // If we have already received connection options (via handshake or due to |
| // a previous call), don't re-initialize. |
| return false; |
| } |
| connection_options_.SetReceivedValues(tags); |
| return true; |
| } |
| |
| void QuicConfig::SetConnectionOptionsToSend( |
| const QuicTagVector& connection_options) { |
| connection_options_.SetSendValues(connection_options); |
| } |
| |
| bool QuicConfig::HasReceivedConnectionOptions() const { |
| return connection_options_.HasReceivedValues(); |
| } |
| |
| const QuicTagVector& QuicConfig::ReceivedConnectionOptions() const { |
| return connection_options_.GetReceivedValues(); |
| } |
| |
| bool QuicConfig::HasSendConnectionOptions() const { |
| return connection_options_.HasSendValues(); |
| } |
| |
| const QuicTagVector& QuicConfig::SendConnectionOptions() const { |
| return connection_options_.GetSendValues(); |
| } |
| |
| bool QuicConfig::HasClientSentConnectionOption(QuicTag tag, |
| Perspective perspective) const { |
| if (perspective == Perspective::IS_SERVER) { |
| if (HasReceivedConnectionOptions() && |
| ContainsQuicTag(ReceivedConnectionOptions(), tag)) { |
| return true; |
| } |
| } else if (HasSendConnectionOptions() && |
| ContainsQuicTag(SendConnectionOptions(), tag)) { |
| return true; |
| } |
| return false; |
| } |
| |
| void QuicConfig::SetClientConnectionOptions( |
| const QuicTagVector& client_connection_options) { |
| client_connection_options_.SetSendValues(client_connection_options); |
| } |
| |
| bool QuicConfig::HasClientRequestedIndependentOption( |
| QuicTag tag, |
| Perspective perspective) const { |
| if (perspective == Perspective::IS_SERVER) { |
| return (HasReceivedConnectionOptions() && |
| ContainsQuicTag(ReceivedConnectionOptions(), tag)); |
| } |
| |
| return (client_connection_options_.HasSendValues() && |
| ContainsQuicTag(client_connection_options_.GetSendValues(), tag)); |
| } |
| |
| const QuicTagVector& QuicConfig::ClientRequestedIndependentOptions( |
| Perspective perspective) const { |
| static const QuicTagVector* no_options = new QuicTagVector; |
| if (perspective == Perspective::IS_SERVER) { |
| return HasReceivedConnectionOptions() ? ReceivedConnectionOptions() |
| : *no_options; |
| } |
| |
| return client_connection_options_.HasSendValues() |
| ? client_connection_options_.GetSendValues() |
| : *no_options; |
| } |
| |
| void QuicConfig::SetIdleNetworkTimeout(QuicTime::Delta idle_network_timeout) { |
| if (idle_network_timeout.ToMicroseconds() <= 0) { |
| QUIC_BUG << "Invalid idle network timeout " << idle_network_timeout; |
| return; |
| } |
| max_idle_timeout_to_send_ = idle_network_timeout; |
| } |
| |
| QuicTime::Delta QuicConfig::IdleNetworkTimeout() const { |
| // TODO(b/152032210) add a QUIC_BUG to ensure that is not called before we've |
| // received the peer's values. This is true in production code but not in all |
| // of our tests that use a fake QuicConfig. |
| if (!received_max_idle_timeout_.has_value()) { |
| return max_idle_timeout_to_send_; |
| } |
| return received_max_idle_timeout_.value(); |
| } |
| |
| void QuicConfig::SetMaxBidirectionalStreamsToSend(uint32_t max_streams) { |
| max_bidirectional_streams_.SetSendValue(max_streams); |
| } |
| |
| uint32_t QuicConfig::GetMaxBidirectionalStreamsToSend() const { |
| return max_bidirectional_streams_.GetSendValue(); |
| } |
| |
| bool QuicConfig::HasReceivedMaxBidirectionalStreams() const { |
| return max_bidirectional_streams_.HasReceivedValue(); |
| } |
| |
| uint32_t QuicConfig::ReceivedMaxBidirectionalStreams() const { |
| return max_bidirectional_streams_.GetReceivedValue(); |
| } |
| |
| void QuicConfig::SetMaxUnidirectionalStreamsToSend(uint32_t max_streams) { |
| max_unidirectional_streams_.SetSendValue(max_streams); |
| } |
| |
| uint32_t QuicConfig::GetMaxUnidirectionalStreamsToSend() const { |
| return max_unidirectional_streams_.GetSendValue(); |
| } |
| |
| bool QuicConfig::HasReceivedMaxUnidirectionalStreams() const { |
| return max_unidirectional_streams_.HasReceivedValue(); |
| } |
| |
| uint32_t QuicConfig::ReceivedMaxUnidirectionalStreams() const { |
| return max_unidirectional_streams_.GetReceivedValue(); |
| } |
| |
| void QuicConfig::SetMaxAckDelayToSendMs(uint32_t max_ack_delay_ms) { |
| max_ack_delay_ms_.SetSendValue(max_ack_delay_ms); |
| } |
| |
| uint32_t QuicConfig::GetMaxAckDelayToSendMs() const { |
| return max_ack_delay_ms_.GetSendValue(); |
| } |
| |
| bool QuicConfig::HasReceivedMaxAckDelayMs() const { |
| return max_ack_delay_ms_.HasReceivedValue(); |
| } |
| |
| uint32_t QuicConfig::ReceivedMaxAckDelayMs() const { |
| return max_ack_delay_ms_.GetReceivedValue(); |
| } |
| |
| void QuicConfig::SetMinAckDelayMs(uint32_t min_ack_delay_ms) { |
| min_ack_delay_ms_.SetSendValue(min_ack_delay_ms); |
| } |
| |
| uint32_t QuicConfig::GetMinAckDelayToSendMs() const { |
| return min_ack_delay_ms_.GetSendValue(); |
| } |
| |
| bool QuicConfig::HasReceivedMinAckDelayMs() const { |
| return min_ack_delay_ms_.HasReceivedValue(); |
| } |
| |
| uint32_t QuicConfig::ReceivedMinAckDelayMs() const { |
| return min_ack_delay_ms_.GetReceivedValue(); |
| } |
| |
| void QuicConfig::SetAckDelayExponentToSend(uint32_t exponent) { |
| ack_delay_exponent_.SetSendValue(exponent); |
| } |
| |
| uint32_t QuicConfig::GetAckDelayExponentToSend() const { |
| return ack_delay_exponent_.GetSendValue(); |
| } |
| |
| bool QuicConfig::HasReceivedAckDelayExponent() const { |
| return ack_delay_exponent_.HasReceivedValue(); |
| } |
| |
| uint32_t QuicConfig::ReceivedAckDelayExponent() const { |
| return ack_delay_exponent_.GetReceivedValue(); |
| } |
| |
| void QuicConfig::SetMaxPacketSizeToSend(uint64_t max_udp_payload_size) { |
| max_udp_payload_size_.SetSendValue(max_udp_payload_size); |
| } |
| |
| uint64_t QuicConfig::GetMaxPacketSizeToSend() const { |
| return max_udp_payload_size_.GetSendValue(); |
| } |
| |
| bool QuicConfig::HasReceivedMaxPacketSize() const { |
| return max_udp_payload_size_.HasReceivedValue(); |
| } |
| |
| uint64_t QuicConfig::ReceivedMaxPacketSize() const { |
| return max_udp_payload_size_.GetReceivedValue(); |
| } |
| |
| void QuicConfig::SetMaxDatagramFrameSizeToSend( |
| uint64_t max_datagram_frame_size) { |
| max_datagram_frame_size_.SetSendValue(max_datagram_frame_size); |
| } |
| |
| uint64_t QuicConfig::GetMaxDatagramFrameSizeToSend() const { |
| return max_datagram_frame_size_.GetSendValue(); |
| } |
| |
| bool QuicConfig::HasReceivedMaxDatagramFrameSize() const { |
| return max_datagram_frame_size_.HasReceivedValue(); |
| } |
| |
| uint64_t QuicConfig::ReceivedMaxDatagramFrameSize() const { |
| return max_datagram_frame_size_.GetReceivedValue(); |
| } |
| |
| void QuicConfig::SetActiveConnectionIdLimitToSend( |
| uint64_t active_connection_id_limit) { |
| active_connection_id_limit_.SetSendValue(active_connection_id_limit); |
| } |
| |
| uint64_t QuicConfig::GetActiveConnectionIdLimitToSend() const { |
| return active_connection_id_limit_.GetSendValue(); |
| } |
| |
| bool QuicConfig::HasReceivedActiveConnectionIdLimit() const { |
| return active_connection_id_limit_.HasReceivedValue(); |
| } |
| |
| uint64_t QuicConfig::ReceivedActiveConnectionIdLimit() const { |
| return active_connection_id_limit_.GetReceivedValue(); |
| } |
| |
| bool QuicConfig::HasSetBytesForConnectionIdToSend() const { |
| return bytes_for_connection_id_.HasSendValue(); |
| } |
| |
| void QuicConfig::SetBytesForConnectionIdToSend(uint32_t bytes) { |
| bytes_for_connection_id_.SetSendValue(bytes); |
| } |
| |
| bool QuicConfig::HasReceivedBytesForConnectionId() const { |
| return bytes_for_connection_id_.HasReceivedValue(); |
| } |
| |
| uint32_t QuicConfig::ReceivedBytesForConnectionId() const { |
| return bytes_for_connection_id_.GetReceivedValue(); |
| } |
| |
| void QuicConfig::SetInitialRoundTripTimeUsToSend(uint64_t rtt) { |
| initial_round_trip_time_us_.SetSendValue(rtt); |
| } |
| |
| bool QuicConfig::HasReceivedInitialRoundTripTimeUs() const { |
| return initial_round_trip_time_us_.HasReceivedValue(); |
| } |
| |
| uint64_t QuicConfig::ReceivedInitialRoundTripTimeUs() const { |
| return initial_round_trip_time_us_.GetReceivedValue(); |
| } |
| |
| bool QuicConfig::HasInitialRoundTripTimeUsToSend() const { |
| return initial_round_trip_time_us_.HasSendValue(); |
| } |
| |
| uint64_t QuicConfig::GetInitialRoundTripTimeUsToSend() const { |
| return initial_round_trip_time_us_.GetSendValue(); |
| } |
| |
| void QuicConfig::SetInitialStreamFlowControlWindowToSend( |
| uint64_t window_bytes) { |
| if (window_bytes < kMinimumFlowControlSendWindow) { |
| QUIC_BUG << "Initial stream flow control receive window (" << window_bytes |
| << ") cannot be set lower than minimum (" |
| << kMinimumFlowControlSendWindow << ")."; |
| window_bytes = kMinimumFlowControlSendWindow; |
| } |
| initial_stream_flow_control_window_bytes_.SetSendValue(window_bytes); |
| } |
| |
| uint64_t QuicConfig::GetInitialStreamFlowControlWindowToSend() const { |
| return initial_stream_flow_control_window_bytes_.GetSendValue(); |
| } |
| |
| bool QuicConfig::HasReceivedInitialStreamFlowControlWindowBytes() const { |
| return initial_stream_flow_control_window_bytes_.HasReceivedValue(); |
| } |
| |
| uint64_t QuicConfig::ReceivedInitialStreamFlowControlWindowBytes() const { |
| return initial_stream_flow_control_window_bytes_.GetReceivedValue(); |
| } |
| |
| void QuicConfig::SetInitialMaxStreamDataBytesIncomingBidirectionalToSend( |
| uint64_t window_bytes) { |
| initial_max_stream_data_bytes_incoming_bidirectional_.SetSendValue( |
| window_bytes); |
| } |
| |
| uint64_t QuicConfig::GetInitialMaxStreamDataBytesIncomingBidirectionalToSend() |
| const { |
| if (initial_max_stream_data_bytes_incoming_bidirectional_.HasSendValue()) { |
| return initial_max_stream_data_bytes_incoming_bidirectional_.GetSendValue(); |
| } |
| return initial_stream_flow_control_window_bytes_.GetSendValue(); |
| } |
| |
| bool QuicConfig::HasReceivedInitialMaxStreamDataBytesIncomingBidirectional() |
| const { |
| return initial_max_stream_data_bytes_incoming_bidirectional_ |
| .HasReceivedValue(); |
| } |
| |
| uint64_t QuicConfig::ReceivedInitialMaxStreamDataBytesIncomingBidirectional() |
| const { |
| return initial_max_stream_data_bytes_incoming_bidirectional_ |
| .GetReceivedValue(); |
| } |
| |
| void QuicConfig::SetInitialMaxStreamDataBytesOutgoingBidirectionalToSend( |
| uint64_t window_bytes) { |
| initial_max_stream_data_bytes_outgoing_bidirectional_.SetSendValue( |
| window_bytes); |
| } |
| |
| uint64_t QuicConfig::GetInitialMaxStreamDataBytesOutgoingBidirectionalToSend() |
| const { |
| if (initial_max_stream_data_bytes_outgoing_bidirectional_.HasSendValue()) { |
| return initial_max_stream_data_bytes_outgoing_bidirectional_.GetSendValue(); |
| } |
| return initial_stream_flow_control_window_bytes_.GetSendValue(); |
| } |
| |
| bool QuicConfig::HasReceivedInitialMaxStreamDataBytesOutgoingBidirectional() |
| const { |
| return initial_max_stream_data_bytes_outgoing_bidirectional_ |
| .HasReceivedValue(); |
| } |
| |
| uint64_t QuicConfig::ReceivedInitialMaxStreamDataBytesOutgoingBidirectional() |
| const { |
| return initial_max_stream_data_bytes_outgoing_bidirectional_ |
| .GetReceivedValue(); |
| } |
| |
| void QuicConfig::SetInitialMaxStreamDataBytesUnidirectionalToSend( |
| uint64_t window_bytes) { |
| initial_max_stream_data_bytes_unidirectional_.SetSendValue(window_bytes); |
| } |
| |
| uint64_t QuicConfig::GetInitialMaxStreamDataBytesUnidirectionalToSend() const { |
| if (initial_max_stream_data_bytes_unidirectional_.HasSendValue()) { |
| return initial_max_stream_data_bytes_unidirectional_.GetSendValue(); |
| } |
| return initial_stream_flow_control_window_bytes_.GetSendValue(); |
| } |
| |
| bool QuicConfig::HasReceivedInitialMaxStreamDataBytesUnidirectional() const { |
| return initial_max_stream_data_bytes_unidirectional_.HasReceivedValue(); |
| } |
| |
| uint64_t QuicConfig::ReceivedInitialMaxStreamDataBytesUnidirectional() const { |
| return initial_max_stream_data_bytes_unidirectional_.GetReceivedValue(); |
| } |
| |
| void QuicConfig::SetInitialSessionFlowControlWindowToSend( |
| uint64_t window_bytes) { |
| if (window_bytes < kMinimumFlowControlSendWindow) { |
| QUIC_BUG << "Initial session flow control receive window (" << window_bytes |
| << ") cannot be set lower than default (" |
| << kMinimumFlowControlSendWindow << ")."; |
| window_bytes = kMinimumFlowControlSendWindow; |
| } |
| initial_session_flow_control_window_bytes_.SetSendValue(window_bytes); |
| } |
| |
| uint64_t QuicConfig::GetInitialSessionFlowControlWindowToSend() const { |
| return initial_session_flow_control_window_bytes_.GetSendValue(); |
| } |
| |
| bool QuicConfig::HasReceivedInitialSessionFlowControlWindowBytes() const { |
| return initial_session_flow_control_window_bytes_.HasReceivedValue(); |
| } |
| |
| uint64_t QuicConfig::ReceivedInitialSessionFlowControlWindowBytes() const { |
| return initial_session_flow_control_window_bytes_.GetReceivedValue(); |
| } |
| |
| void QuicConfig::SetDisableConnectionMigration() { |
| connection_migration_disabled_.SetSendValue(1); |
| } |
| |
| bool QuicConfig::DisableConnectionMigration() const { |
| return connection_migration_disabled_.HasReceivedValue(); |
| } |
| |
| void QuicConfig::SetSupportHandshakeDone() { |
| support_handshake_done_.SetSendValue(1); |
| } |
| |
| bool QuicConfig::HandshakeDoneSupported() const { |
| return support_handshake_done_.HasSendValue() && |
| support_handshake_done_.GetSendValue() > 0; |
| } |
| |
| bool QuicConfig::PeerSupportsHandshakeDone() const { |
| return support_handshake_done_.HasReceivedValue(); |
| } |
| |
| void QuicConfig::SetKeyUpdateSupportedLocally() { |
| key_update_supported_locally_ = true; |
| } |
| |
| bool QuicConfig::KeyUpdateSupportedForConnection() const { |
| return KeyUpdateSupportedRemotely() && KeyUpdateSupportedLocally(); |
| } |
| |
| bool QuicConfig::KeyUpdateSupportedLocally() const { |
| return key_update_supported_locally_; |
| } |
| |
| bool QuicConfig::KeyUpdateSupportedRemotely() const { |
| return key_update_supported_remotely_; |
| } |
| |
| void QuicConfig::SetIPv6AlternateServerAddressToSend( |
| const QuicSocketAddress& alternate_server_address_ipv6) { |
| if (!alternate_server_address_ipv6.host().IsIPv6()) { |
| QUIC_BUG << "Cannot use SetIPv6AlternateServerAddressToSend with " |
| << alternate_server_address_ipv6; |
| return; |
| } |
| alternate_server_address_ipv6_.SetSendValue(alternate_server_address_ipv6); |
| } |
| |
| bool QuicConfig::HasReceivedIPv6AlternateServerAddress() const { |
| return alternate_server_address_ipv6_.HasReceivedValue(); |
| } |
| |
| const QuicSocketAddress& QuicConfig::ReceivedIPv6AlternateServerAddress() |
| const { |
| return alternate_server_address_ipv6_.GetReceivedValue(); |
| } |
| |
| void QuicConfig::SetIPv4AlternateServerAddressToSend( |
| const QuicSocketAddress& alternate_server_address_ipv4) { |
| if (!alternate_server_address_ipv4.host().IsIPv4()) { |
| QUIC_BUG << "Cannot use SetIPv4AlternateServerAddressToSend with " |
| << alternate_server_address_ipv4; |
| return; |
| } |
| alternate_server_address_ipv4_.SetSendValue(alternate_server_address_ipv4); |
| } |
| |
| bool QuicConfig::HasReceivedIPv4AlternateServerAddress() const { |
| return alternate_server_address_ipv4_.HasReceivedValue(); |
| } |
| |
| const QuicSocketAddress& QuicConfig::ReceivedIPv4AlternateServerAddress() |
| const { |
| return alternate_server_address_ipv4_.GetReceivedValue(); |
| } |
| |
| void QuicConfig::SetOriginalConnectionIdToSend( |
| const QuicConnectionId& original_destination_connection_id) { |
| original_destination_connection_id_to_send_ = |
| original_destination_connection_id; |
| } |
| |
| bool QuicConfig::HasReceivedOriginalConnectionId() const { |
| return received_original_destination_connection_id_.has_value(); |
| } |
| |
| QuicConnectionId QuicConfig::ReceivedOriginalConnectionId() const { |
| if (!HasReceivedOriginalConnectionId()) { |
| QUIC_BUG << "No received original connection ID"; |
| return EmptyQuicConnectionId(); |
| } |
| return received_original_destination_connection_id_.value(); |
| } |
| |
| void QuicConfig::SetInitialSourceConnectionIdToSend( |
| const QuicConnectionId& initial_source_connection_id) { |
| initial_source_connection_id_to_send_ = initial_source_connection_id; |
| } |
| |
| bool QuicConfig::HasReceivedInitialSourceConnectionId() const { |
| return received_initial_source_connection_id_.has_value(); |
| } |
| |
| QuicConnectionId QuicConfig::ReceivedInitialSourceConnectionId() const { |
| if (!HasReceivedInitialSourceConnectionId()) { |
| QUIC_BUG << "No received initial source connection ID"; |
| return EmptyQuicConnectionId(); |
| } |
| return received_initial_source_connection_id_.value(); |
| } |
| |
| void QuicConfig::SetRetrySourceConnectionIdToSend( |
| const QuicConnectionId& retry_source_connection_id) { |
| retry_source_connection_id_to_send_ = retry_source_connection_id; |
| } |
| |
| bool QuicConfig::HasReceivedRetrySourceConnectionId() const { |
| return received_retry_source_connection_id_.has_value(); |
| } |
| |
| QuicConnectionId QuicConfig::ReceivedRetrySourceConnectionId() const { |
| if (!HasReceivedRetrySourceConnectionId()) { |
| QUIC_BUG << "No received retry source connection ID"; |
| return EmptyQuicConnectionId(); |
| } |
| return received_retry_source_connection_id_.value(); |
| } |
| |
| void QuicConfig::SetStatelessResetTokenToSend( |
| QuicUint128 stateless_reset_token) { |
| stateless_reset_token_.SetSendValue(stateless_reset_token); |
| } |
| |
| bool QuicConfig::HasReceivedStatelessResetToken() const { |
| return stateless_reset_token_.HasReceivedValue(); |
| } |
| |
| QuicUint128 QuicConfig::ReceivedStatelessResetToken() const { |
| return stateless_reset_token_.GetReceivedValue(); |
| } |
| |
| bool QuicConfig::negotiated() const { |
| return negotiated_; |
| } |
| |
| void QuicConfig::SetCreateSessionTagIndicators(QuicTagVector tags) { |
| create_session_tag_indicators_ = std::move(tags); |
| } |
| |
| const QuicTagVector& QuicConfig::create_session_tag_indicators() const { |
| return create_session_tag_indicators_; |
| } |
| |
| void QuicConfig::SetDefaults() { |
| SetIdleNetworkTimeout(QuicTime::Delta::FromSeconds(kMaximumIdleTimeoutSecs)); |
| SetMaxBidirectionalStreamsToSend(kDefaultMaxStreamsPerConnection); |
| SetMaxUnidirectionalStreamsToSend(kDefaultMaxStreamsPerConnection); |
| max_time_before_crypto_handshake_ = |
| QuicTime::Delta::FromSeconds(kMaxTimeForCryptoHandshakeSecs); |
| max_idle_time_before_crypto_handshake_ = |
| QuicTime::Delta::FromSeconds(kInitialIdleTimeoutSecs); |
| max_undecryptable_packets_ = kDefaultMaxUndecryptablePackets; |
| |
| SetInitialStreamFlowControlWindowToSend(kMinimumFlowControlSendWindow); |
| SetInitialSessionFlowControlWindowToSend(kMinimumFlowControlSendWindow); |
| SetMaxAckDelayToSendMs(kDefaultDelayedAckTimeMs); |
| SetAckDelayExponentToSend(kDefaultAckDelayExponent); |
| SetMaxPacketSizeToSend(kMaxIncomingPacketSize); |
| SetMaxDatagramFrameSizeToSend(kMaxAcceptedDatagramFrameSize); |
| } |
| |
| void QuicConfig::ToHandshakeMessage( |
| CryptoHandshakeMessage* out, |
| QuicTransportVersion transport_version) const { |
| // Idle timeout has custom rules that are different from other values. |
| // We configure ourselves with the minumum value between the one sent and |
| // the one received. Additionally, when QUIC_CRYPTO is used, the server |
| // MUST send an idle timeout no greater than the idle timeout it received |
| // from the client. We therefore send the received value if it is lower. |
| QuicFixedUint32 max_idle_timeout_seconds(kICSL, PRESENCE_REQUIRED); |
| uint32_t max_idle_timeout_to_send_seconds = |
| max_idle_timeout_to_send_.ToSeconds(); |
| if (received_max_idle_timeout_.has_value() && |
| received_max_idle_timeout_->ToSeconds() < |
| max_idle_timeout_to_send_seconds) { |
| max_idle_timeout_to_send_seconds = received_max_idle_timeout_->ToSeconds(); |
| } |
| max_idle_timeout_seconds.SetSendValue(max_idle_timeout_to_send_seconds); |
| max_idle_timeout_seconds.ToHandshakeMessage(out); |
| |
| // Do not need a version check here, max...bi... will encode |
| // as "MIDS" -- the max initial dynamic streams tag -- if |
| // doing some version other than IETF QUIC. |
| max_bidirectional_streams_.ToHandshakeMessage(out); |
| if (VersionHasIetfQuicFrames(transport_version)) { |
| max_unidirectional_streams_.ToHandshakeMessage(out); |
| ack_delay_exponent_.ToHandshakeMessage(out); |
| } |
| if (max_ack_delay_ms_.GetSendValue() != kDefaultDelayedAckTimeMs) { |
| // Only send max ack delay if it is using a non-default value, because |
| // the default value is used by QuicSentPacketManager if it is not |
| // sent during the handshake, and we want to save bytes. |
| max_ack_delay_ms_.ToHandshakeMessage(out); |
| } |
| bytes_for_connection_id_.ToHandshakeMessage(out); |
| initial_round_trip_time_us_.ToHandshakeMessage(out); |
| initial_stream_flow_control_window_bytes_.ToHandshakeMessage(out); |
| initial_session_flow_control_window_bytes_.ToHandshakeMessage(out); |
| connection_migration_disabled_.ToHandshakeMessage(out); |
| connection_options_.ToHandshakeMessage(out); |
| if (alternate_server_address_ipv6_.HasSendValue()) { |
| alternate_server_address_ipv6_.ToHandshakeMessage(out); |
| } else { |
| alternate_server_address_ipv4_.ToHandshakeMessage(out); |
| } |
| stateless_reset_token_.ToHandshakeMessage(out); |
| } |
| |
| QuicErrorCode QuicConfig::ProcessPeerHello( |
| const CryptoHandshakeMessage& peer_hello, |
| HelloType hello_type, |
| std::string* error_details) { |
| DCHECK(error_details != nullptr); |
| |
| QuicErrorCode error = QUIC_NO_ERROR; |
| if (error == QUIC_NO_ERROR) { |
| // Idle timeout has custom rules that are different from other values. |
| // We configure ourselves with the minumum value between the one sent and |
| // the one received. Additionally, when QUIC_CRYPTO is used, the server |
| // MUST send an idle timeout no greater than the idle timeout it received |
| // from the client. |
| QuicFixedUint32 max_idle_timeout_seconds(kICSL, PRESENCE_REQUIRED); |
| error = max_idle_timeout_seconds.ProcessPeerHello(peer_hello, hello_type, |
| error_details); |
| if (error == QUIC_NO_ERROR) { |
| if (max_idle_timeout_seconds.GetReceivedValue() > |
| max_idle_timeout_to_send_.ToSeconds()) { |
| // The received value is higher than ours, ignore it if from the client |
| // and raise an error if from the server. |
| if (hello_type == SERVER) { |
| error = QUIC_INVALID_NEGOTIATED_VALUE; |
| *error_details = |
| "Invalid value received for " + QuicTagToString(kICSL); |
| } |
| } else { |
| received_max_idle_timeout_ = QuicTime::Delta::FromSeconds( |
| max_idle_timeout_seconds.GetReceivedValue()); |
| } |
| } |
| } |
| if (error == QUIC_NO_ERROR) { |
| error = max_bidirectional_streams_.ProcessPeerHello(peer_hello, hello_type, |
| error_details); |
| } |
| if (error == QUIC_NO_ERROR) { |
| error = max_unidirectional_streams_.ProcessPeerHello(peer_hello, hello_type, |
| error_details); |
| } |
| if (error == QUIC_NO_ERROR) { |
| error = bytes_for_connection_id_.ProcessPeerHello(peer_hello, hello_type, |
| error_details); |
| } |
| if (error == QUIC_NO_ERROR) { |
| error = initial_round_trip_time_us_.ProcessPeerHello(peer_hello, hello_type, |
| error_details); |
| } |
| if (error == QUIC_NO_ERROR) { |
| error = initial_stream_flow_control_window_bytes_.ProcessPeerHello( |
| peer_hello, hello_type, error_details); |
| } |
| if (error == QUIC_NO_ERROR) { |
| error = initial_session_flow_control_window_bytes_.ProcessPeerHello( |
| peer_hello, hello_type, error_details); |
| } |
| if (error == QUIC_NO_ERROR) { |
| error = connection_migration_disabled_.ProcessPeerHello( |
| peer_hello, hello_type, error_details); |
| } |
| if (error == QUIC_NO_ERROR) { |
| error = connection_options_.ProcessPeerHello(peer_hello, hello_type, |
| error_details); |
| } |
| if (error == QUIC_NO_ERROR) { |
| QuicFixedSocketAddress alternate_server_address(kASAD, PRESENCE_OPTIONAL); |
| error = alternate_server_address.ProcessPeerHello(peer_hello, hello_type, |
| error_details); |
| if (error == QUIC_NO_ERROR && alternate_server_address.HasReceivedValue()) { |
| const QuicSocketAddress& received_address = |
| alternate_server_address.GetReceivedValue(); |
| if (received_address.host().IsIPv6()) { |
| alternate_server_address_ipv6_.SetReceivedValue(received_address); |
| } else if (received_address.host().IsIPv4()) { |
| alternate_server_address_ipv4_.SetReceivedValue(received_address); |
| } |
| } |
| } |
| if (error == QUIC_NO_ERROR) { |
| error = stateless_reset_token_.ProcessPeerHello(peer_hello, hello_type, |
| error_details); |
| } |
| |
| if (error == QUIC_NO_ERROR) { |
| error = max_ack_delay_ms_.ProcessPeerHello(peer_hello, hello_type, |
| error_details); |
| } |
| if (error == QUIC_NO_ERROR) { |
| error = ack_delay_exponent_.ProcessPeerHello(peer_hello, hello_type, |
| error_details); |
| } |
| if (error == QUIC_NO_ERROR) { |
| negotiated_ = true; |
| } |
| return error; |
| } |
| |
| bool QuicConfig::FillTransportParameters(TransportParameters* params) const { |
| if (original_destination_connection_id_to_send_.has_value()) { |
| params->original_destination_connection_id = |
| original_destination_connection_id_to_send_.value(); |
| } |
| |
| params->max_idle_timeout_ms.set_value( |
| max_idle_timeout_to_send_.ToMilliseconds()); |
| |
| if (stateless_reset_token_.HasSendValue()) { |
| QuicUint128 stateless_reset_token = stateless_reset_token_.GetSendValue(); |
| params->stateless_reset_token.assign( |
| reinterpret_cast<const char*>(&stateless_reset_token), |
| reinterpret_cast<const char*>(&stateless_reset_token) + |
| sizeof(stateless_reset_token)); |
| } |
| |
| params->max_udp_payload_size.set_value(GetMaxPacketSizeToSend()); |
| params->max_datagram_frame_size.set_value(GetMaxDatagramFrameSizeToSend()); |
| params->initial_max_data.set_value( |
| GetInitialSessionFlowControlWindowToSend()); |
| // The max stream data bidirectional transport parameters can be either local |
| // or remote. A stream is local iff it is initiated by the endpoint that sent |
| // the transport parameter (see the Transport Parameter Definitions section of |
| // draft-ietf-quic-transport). In this function we are sending transport |
| // parameters, so a local stream is one we initiated, which means an outgoing |
| // stream. |
| params->initial_max_stream_data_bidi_local.set_value( |
| GetInitialMaxStreamDataBytesOutgoingBidirectionalToSend()); |
| params->initial_max_stream_data_bidi_remote.set_value( |
| GetInitialMaxStreamDataBytesIncomingBidirectionalToSend()); |
| params->initial_max_stream_data_uni.set_value( |
| GetInitialMaxStreamDataBytesUnidirectionalToSend()); |
| params->initial_max_streams_bidi.set_value( |
| GetMaxBidirectionalStreamsToSend()); |
| params->initial_max_streams_uni.set_value( |
| GetMaxUnidirectionalStreamsToSend()); |
| params->max_ack_delay.set_value(GetMaxAckDelayToSendMs()); |
| if (min_ack_delay_ms_.HasSendValue()) { |
| params->min_ack_delay_us.set_value(min_ack_delay_ms_.GetSendValue() * |
| kNumMicrosPerMilli); |
| } |
| params->ack_delay_exponent.set_value(GetAckDelayExponentToSend()); |
| params->disable_active_migration = |
| connection_migration_disabled_.HasSendValue() && |
| connection_migration_disabled_.GetSendValue() != 0; |
| params->support_handshake_done = HandshakeDoneSupported(); |
| |
| if (alternate_server_address_ipv6_.HasSendValue() || |
| alternate_server_address_ipv4_.HasSendValue()) { |
| TransportParameters::PreferredAddress preferred_address; |
| if (alternate_server_address_ipv6_.HasSendValue()) { |
| preferred_address.ipv6_socket_address = |
| alternate_server_address_ipv6_.GetSendValue(); |
| } |
| if (alternate_server_address_ipv4_.HasSendValue()) { |
| preferred_address.ipv4_socket_address = |
| alternate_server_address_ipv4_.GetSendValue(); |
| } |
| params->preferred_address = |
| std::make_unique<TransportParameters::PreferredAddress>( |
| preferred_address); |
| } |
| |
| if (active_connection_id_limit_.HasSendValue()) { |
| params->active_connection_id_limit.set_value( |
| active_connection_id_limit_.GetSendValue()); |
| } |
| |
| if (initial_source_connection_id_to_send_.has_value()) { |
| params->initial_source_connection_id = |
| initial_source_connection_id_to_send_.value(); |
| } |
| |
| if (retry_source_connection_id_to_send_.has_value()) { |
| params->retry_source_connection_id = |
| retry_source_connection_id_to_send_.value(); |
| } |
| |
| if (initial_round_trip_time_us_.HasSendValue()) { |
| params->initial_round_trip_time_us.set_value( |
| initial_round_trip_time_us_.GetSendValue()); |
| } |
| if (connection_options_.HasSendValues() && |
| !connection_options_.GetSendValues().empty()) { |
| params->google_connection_options = connection_options_.GetSendValues(); |
| } |
| |
| if (!KeyUpdateSupportedLocally()) { |
| params->key_update_not_yet_supported = true; |
| } |
| |
| params->custom_parameters = custom_transport_parameters_to_send_; |
| |
| return true; |
| } |
| |
| QuicErrorCode QuicConfig::ProcessTransportParameters( |
| const TransportParameters& params, |
| bool is_resumption, |
| std::string* error_details) { |
| if (!is_resumption && params.original_destination_connection_id.has_value()) { |
| received_original_destination_connection_id_ = |
| params.original_destination_connection_id.value(); |
| } |
| |
| if (params.max_idle_timeout_ms.value() > 0 && |
| params.max_idle_timeout_ms.value() < |
| static_cast<uint64_t>(max_idle_timeout_to_send_.ToMilliseconds())) { |
| // An idle timeout of zero indicates it is disabled. |
| // We also ignore values higher than ours which will cause us to use the |
| // smallest value between ours and our peer's. |
| received_max_idle_timeout_ = |
| QuicTime::Delta::FromMilliseconds(params.max_idle_timeout_ms.value()); |
| } |
| |
| if (!is_resumption && !params.stateless_reset_token.empty()) { |
| QuicUint128 stateless_reset_token; |
| if (params.stateless_reset_token.size() != sizeof(stateless_reset_token)) { |
| QUIC_BUG << "Bad stateless reset token length " |
| << params.stateless_reset_token.size(); |
| *error_details = "Bad stateless reset token length"; |
| return QUIC_INTERNAL_ERROR; |
| } |
| memcpy(&stateless_reset_token, params.stateless_reset_token.data(), |
| params.stateless_reset_token.size()); |
| stateless_reset_token_.SetReceivedValue(stateless_reset_token); |
| } |
| |
| if (params.max_udp_payload_size.IsValid()) { |
| max_udp_payload_size_.SetReceivedValue(params.max_udp_payload_size.value()); |
| } |
| |
| if (params.max_datagram_frame_size.IsValid()) { |
| max_datagram_frame_size_.SetReceivedValue( |
| params.max_datagram_frame_size.value()); |
| } |
| |
| initial_session_flow_control_window_bytes_.SetReceivedValue( |
| params.initial_max_data.value()); |
| |
| // IETF QUIC specifies stream IDs and stream counts as 62-bit integers but |
| // our implementation uses uint32_t to represent them to save memory. |
| max_bidirectional_streams_.SetReceivedValue( |
| std::min<uint64_t>(params.initial_max_streams_bidi.value(), |
| std::numeric_limits<uint32_t>::max())); |
| max_unidirectional_streams_.SetReceivedValue( |
| std::min<uint64_t>(params.initial_max_streams_uni.value(), |
| std::numeric_limits<uint32_t>::max())); |
| |
| // The max stream data bidirectional transport parameters can be either local |
| // or remote. A stream is local iff it is initiated by the endpoint that sent |
| // the transport parameter (see the Transport Parameter Definitions section of |
| // draft-ietf-quic-transport). However in this function we are processing |
| // received transport parameters, so a local stream is one initiated by our |
| // peer, which means an incoming stream. |
| initial_max_stream_data_bytes_incoming_bidirectional_.SetReceivedValue( |
| params.initial_max_stream_data_bidi_local.value()); |
| initial_max_stream_data_bytes_outgoing_bidirectional_.SetReceivedValue( |
| params.initial_max_stream_data_bidi_remote.value()); |
| initial_max_stream_data_bytes_unidirectional_.SetReceivedValue( |
| params.initial_max_stream_data_uni.value()); |
| |
| if (!is_resumption) { |
| max_ack_delay_ms_.SetReceivedValue(params.max_ack_delay.value()); |
| if (params.ack_delay_exponent.IsValid()) { |
| ack_delay_exponent_.SetReceivedValue(params.ack_delay_exponent.value()); |
| } |
| if (params.preferred_address != nullptr) { |
| if (params.preferred_address->ipv6_socket_address.port() != 0) { |
| alternate_server_address_ipv6_.SetReceivedValue( |
| params.preferred_address->ipv6_socket_address); |
| } |
| if (params.preferred_address->ipv4_socket_address.port() != 0) { |
| alternate_server_address_ipv4_.SetReceivedValue( |
| params.preferred_address->ipv4_socket_address); |
| } |
| } |
| if (params.min_ack_delay_us.value() != 0) { |
| if (params.min_ack_delay_us.value() > |
| params.max_ack_delay.value() * kNumMicrosPerMilli) { |
| *error_details = "MinAckDelay is greater than MaxAckDelay."; |
| return IETF_QUIC_PROTOCOL_VIOLATION; |
| } |
| min_ack_delay_ms_.SetReceivedValue(params.min_ack_delay_us.value() / |
| kNumMicrosPerMilli); |
| } |
| } |
| |
| if (params.disable_active_migration) { |
| connection_migration_disabled_.SetReceivedValue(1u); |
| } |
| if (params.support_handshake_done) { |
| support_handshake_done_.SetReceivedValue(1u); |
| } |
| if (!is_resumption && !params.key_update_not_yet_supported) { |
| key_update_supported_remotely_ = true; |
| } |
| |
| active_connection_id_limit_.SetReceivedValue( |
| params.active_connection_id_limit.value()); |
| |
| if (!is_resumption) { |
| if (params.initial_source_connection_id.has_value()) { |
| received_initial_source_connection_id_ = |
| params.initial_source_connection_id.value(); |
| } |
| if (params.retry_source_connection_id.has_value()) { |
| received_retry_source_connection_id_ = |
| params.retry_source_connection_id.value(); |
| } |
| } |
| |
| if (params.initial_round_trip_time_us.value() > 0) { |
| initial_round_trip_time_us_.SetReceivedValue( |
| params.initial_round_trip_time_us.value()); |
| } |
| if (params.google_connection_options.has_value()) { |
| connection_options_.SetReceivedValues( |
| params.google_connection_options.value()); |
| } |
| |
| received_custom_transport_parameters_ = params.custom_parameters; |
| |
| if (!is_resumption) { |
| negotiated_ = true; |
| } |
| *error_details = ""; |
| return QUIC_NO_ERROR; |
| } |
| |
| } // namespace quic |