blob: 7fd0c41b9f218620110a7cabe1e9815af01c4492 [file] [log] [blame]
// 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/quic/quic_config.h"
#include <algorithm>
#include "base/logging.h"
#include "net/quic/crypto/crypto_handshake_message.h"
#include "net/quic/crypto/crypto_protocol.h"
#include "net/quic/quic_bug_tracker.h"
#include "net/quic/quic_socket_address_coder.h"
#include "net/quic/quic_utils.h"
using std::min;
using std::string;
namespace net {
// 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,
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 " + QuicUtils::TagToString(tag);
break;
}
error = QUIC_NO_ERROR;
*out = default_value;
break;
case QUIC_NO_ERROR:
break;
default:
*error_details = "Bad " + QuicUtils::TagToString(tag);
break;
}
return error;
}
QuicConfigValue::QuicConfigValue(QuicTag tag, QuicConfigPresence presence)
: tag_(tag), presence_(presence) {}
QuicConfigValue::~QuicConfigValue() {}
QuicNegotiableValue::QuicNegotiableValue(QuicTag tag,
QuicConfigPresence presence)
: QuicConfigValue(tag, presence), negotiated_(false) {}
QuicNegotiableValue::~QuicNegotiableValue() {}
QuicNegotiableUint32::QuicNegotiableUint32(QuicTag tag,
QuicConfigPresence presence)
: QuicNegotiableValue(tag, presence),
max_value_(0),
default_value_(0),
negotiated_value_(0) {}
QuicNegotiableUint32::~QuicNegotiableUint32() {}
void QuicNegotiableUint32::set(uint32_t max, uint32_t default_value) {
DCHECK_LE(default_value, max);
max_value_ = max;
default_value_ = default_value;
}
uint32_t QuicNegotiableUint32::GetUint32() const {
if (negotiated()) {
return negotiated_value_;
}
return default_value_;
}
void QuicNegotiableUint32::ToHandshakeMessage(
CryptoHandshakeMessage* out) const {
if (negotiated()) {
out->SetValue(tag_, negotiated_value_);
} else {
out->SetValue(tag_, max_value_);
}
}
QuicErrorCode QuicNegotiableUint32::ProcessPeerHello(
const CryptoHandshakeMessage& peer_hello,
HelloType hello_type,
string* error_details) {
DCHECK(!negotiated());
DCHECK(error_details != nullptr);
uint32_t value;
QuicErrorCode error = ReadUint32(peer_hello, tag_, presence_, default_value_,
&value, error_details);
if (error != QUIC_NO_ERROR) {
return error;
}
if (hello_type == SERVER && value > max_value_) {
*error_details =
"Invalid value received for " + QuicUtils::TagToString(tag_);
return QUIC_INVALID_NEGOTIATED_VALUE;
}
set_negotiated(true);
negotiated_value_ = min(value, max_value_);
return QUIC_NO_ERROR;
}
QuicNegotiableTag::QuicNegotiableTag(QuicTag tag, QuicConfigPresence presence)
: QuicNegotiableValue(tag, presence),
negotiated_tag_(0),
default_value_(0) {}
QuicNegotiableTag::~QuicNegotiableTag() {}
void QuicNegotiableTag::set(const QuicTagVector& possible,
QuicTag default_value) {
DCHECK(ContainsQuicTag(possible, default_value));
possible_values_ = possible;
default_value_ = default_value;
}
void QuicNegotiableTag::ToHandshakeMessage(CryptoHandshakeMessage* out) const {
if (negotiated()) {
// Because of the way we serialize and parse handshake messages we can
// serialize this as value and still parse it as a vector.
out->SetValue(tag_, negotiated_tag_);
} else {
out->SetVector(tag_, possible_values_);
}
}
QuicErrorCode QuicNegotiableTag::ReadVector(const CryptoHandshakeMessage& msg,
const QuicTag** out,
size_t* out_length,
string* error_details) const {
DCHECK(error_details != nullptr);
QuicErrorCode error = msg.GetTaglist(tag_, out, out_length);
switch (error) {
case QUIC_CRYPTO_MESSAGE_PARAMETER_NOT_FOUND:
if (presence_ == PRESENCE_REQUIRED) {
*error_details = "Missing " + QuicUtils::TagToString(tag_);
break;
}
error = QUIC_NO_ERROR;
*out_length = 1;
*out = &default_value_;
case QUIC_NO_ERROR:
break;
default:
*error_details = "Bad " + QuicUtils::TagToString(tag_);
break;
}
return error;
}
QuicErrorCode QuicNegotiableTag::ProcessPeerHello(
const CryptoHandshakeMessage& peer_hello,
HelloType hello_type,
string* error_details) {
DCHECK(!negotiated());
DCHECK(error_details != nullptr);
const QuicTag* received_tags;
size_t received_tags_length;
QuicErrorCode error = ReadVector(peer_hello, &received_tags,
&received_tags_length, error_details);
if (error != QUIC_NO_ERROR) {
return error;
}
if (hello_type == SERVER) {
if (received_tags_length != 1 ||
!ContainsQuicTag(possible_values_, *received_tags)) {
*error_details = "Invalid " + QuicUtils::TagToString(tag_);
return QUIC_INVALID_NEGOTIATED_VALUE;
}
negotiated_tag_ = *received_tags;
} else {
QuicTag negotiated_tag;
if (!QuicUtils::FindMutualTag(
possible_values_, received_tags, received_tags_length,
QuicUtils::LOCAL_PRIORITY, &negotiated_tag, nullptr)) {
*error_details = "Unsupported " + QuicUtils::TagToString(tag_);
return QUIC_CRYPTO_MESSAGE_PARAMETER_NO_OVERLAP;
}
negotiated_tag_ = negotiated_tag;
}
set_negotiated(true);
return QUIC_NO_ERROR;
}
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:"
<< QuicUtils::TagToString(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:"
<< QuicUtils::TagToString(tag_);
return receive_value_;
}
void QuicFixedUint32::SetReceivedValue(uint32_t value) {
has_receive_value_ = true;
receive_value_ = value;
}
void QuicFixedUint32::ToHandshakeMessage(CryptoHandshakeMessage* out) const {
if (has_send_value_) {
out->SetValue(tag_, send_value_);
}
}
QuicErrorCode QuicFixedUint32::ProcessPeerHello(
const CryptoHandshakeMessage& peer_hello,
HelloType hello_type,
string* error_details) {
DCHECK(error_details != nullptr);
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 " + QuicUtils::TagToString(tag_);
break;
case QUIC_NO_ERROR:
has_receive_value_ = true;
break;
default:
*error_details = "Bad " + QuicUtils::TagToString(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_;
}
QuicTagVector QuicFixedTagVector::GetSendValues() const {
QUIC_BUG_IF(!has_send_values_) << "No send values to get for tag:"
<< QuicUtils::TagToString(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_;
}
QuicTagVector QuicFixedTagVector::GetReceivedValues() const {
QUIC_BUG_IF(!has_receive_values_) << "No receive value to get for tag:"
<< QuicUtils::TagToString(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,
string* error_details) {
DCHECK(error_details != nullptr);
const QuicTag* received_tags;
size_t received_tags_length;
QuicErrorCode error =
peer_hello.GetTaglist(tag_, &received_tags, &received_tags_length);
switch (error) {
case QUIC_CRYPTO_MESSAGE_PARAMETER_NOT_FOUND:
if (presence_ == PRESENCE_OPTIONAL) {
return QUIC_NO_ERROR;
}
*error_details = "Missing " + QuicUtils::TagToString(tag_);
break;
case QUIC_NO_ERROR:
DVLOG(1) << "Received Connection Option tags from receiver.";
has_receive_values_ = true;
for (size_t i = 0; i < received_tags_length; ++i) {
receive_values_.push_back(received_tags[i]);
}
break;
default:
*error_details = "Bad " + QuicUtils::TagToString(tag_);
break;
}
return error;
}
QuicFixedIPEndPoint::QuicFixedIPEndPoint(QuicTag tag,
QuicConfigPresence presence)
: QuicConfigValue(tag, presence),
has_send_value_(false),
has_receive_value_(false) {}
QuicFixedIPEndPoint::~QuicFixedIPEndPoint() {}
bool QuicFixedIPEndPoint::HasSendValue() const {
return has_send_value_;
}
const IPEndPoint& QuicFixedIPEndPoint::GetSendValue() const {
QUIC_BUG_IF(!has_send_value_) << "No send value to get for tag:"
<< QuicUtils::TagToString(tag_);
return send_value_;
}
void QuicFixedIPEndPoint::SetSendValue(const IPEndPoint& value) {
has_send_value_ = true;
send_value_ = value;
}
bool QuicFixedIPEndPoint::HasReceivedValue() const {
return has_receive_value_;
}
const IPEndPoint& QuicFixedIPEndPoint::GetReceivedValue() const {
QUIC_BUG_IF(!has_receive_value_) << "No receive value to get for tag:"
<< QuicUtils::TagToString(tag_);
return receive_value_;
}
void QuicFixedIPEndPoint::SetReceivedValue(const IPEndPoint& value) {
has_receive_value_ = true;
receive_value_ = value;
}
void QuicFixedIPEndPoint::ToHandshakeMessage(
CryptoHandshakeMessage* out) const {
if (has_send_value_) {
QuicSocketAddressCoder address_coder(send_value_);
out->SetStringPiece(tag_, address_coder.Encode());
}
}
QuicErrorCode QuicFixedIPEndPoint::ProcessPeerHello(
const CryptoHandshakeMessage& peer_hello,
HelloType hello_type,
string* error_details) {
base::StringPiece address;
if (!peer_hello.GetStringPiece(tag_, &address)) {
if (presence_ == PRESENCE_REQUIRED) {
*error_details = "Missing " + QuicUtils::TagToString(tag_);
return QUIC_CRYPTO_MESSAGE_PARAMETER_NOT_FOUND;
}
} else {
QuicSocketAddressCoder address_coder;
if (address_coder.Decode(address.data(), address.length())) {
SetReceivedValue(IPEndPoint(address_coder.ip(), address_coder.port()));
}
}
return QUIC_NO_ERROR;
}
QuicConfig::QuicConfig()
: 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),
idle_connection_state_lifetime_seconds_(kICSL, PRESENCE_REQUIRED),
silent_close_(kSCLS, PRESENCE_OPTIONAL),
max_streams_per_connection_(kMSPC, PRESENCE_REQUIRED),
bytes_for_connection_id_(kTCID, PRESENCE_OPTIONAL),
initial_round_trip_time_us_(kIRTT, PRESENCE_OPTIONAL),
initial_stream_flow_control_window_bytes_(kSFCW, PRESENCE_OPTIONAL),
initial_session_flow_control_window_bytes_(kCFCW, PRESENCE_OPTIONAL),
socket_receive_buffer_(kSRBF, PRESENCE_OPTIONAL),
multipath_enabled_(kMPTH, PRESENCE_OPTIONAL),
connection_migration_disabled_(kNCMR, PRESENCE_OPTIONAL),
alternate_server_address_(kASAD, 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();
}
QuicTagVector QuicConfig::ReceivedConnectionOptions() const {
return connection_options_.GetReceivedValues();
}
bool QuicConfig::HasSendConnectionOptions() const {
return connection_options_.HasSendValues();
}
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::SetIdleConnectionStateLifetime(
QuicTime::Delta max_idle_connection_state_lifetime,
QuicTime::Delta default_idle_conection_state_lifetime) {
idle_connection_state_lifetime_seconds_.set(
static_cast<uint32_t>(max_idle_connection_state_lifetime.ToSeconds()),
static_cast<uint32_t>(default_idle_conection_state_lifetime.ToSeconds()));
}
QuicTime::Delta QuicConfig::IdleConnectionStateLifetime() const {
return QuicTime::Delta::FromSeconds(
idle_connection_state_lifetime_seconds_.GetUint32());
}
// TODO(ianswett) Use this for silent close on mobile, or delete.
void QuicConfig::SetSilentClose(bool silent_close) {
silent_close_.set(silent_close ? 1 : 0, silent_close ? 1 : 0);
}
bool QuicConfig::SilentClose() const {
return silent_close_.GetUint32() > 0;
}
void QuicConfig::SetMaxStreamsPerConnection(size_t max_streams,
size_t default_streams) {
max_streams_per_connection_.set(max_streams, default_streams);
}
uint32_t QuicConfig::MaxStreamsPerConnection() const {
return max_streams_per_connection_.GetUint32();
}
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(uint32_t rtt) {
initial_round_trip_time_us_.SetSendValue(rtt);
}
bool QuicConfig::HasReceivedInitialRoundTripTimeUs() const {
return initial_round_trip_time_us_.HasReceivedValue();
}
uint32_t QuicConfig::ReceivedInitialRoundTripTimeUs() const {
return initial_round_trip_time_us_.GetReceivedValue();
}
bool QuicConfig::HasInitialRoundTripTimeUsToSend() const {
return initial_round_trip_time_us_.HasSendValue();
}
uint32_t QuicConfig::GetInitialRoundTripTimeUsToSend() const {
return initial_round_trip_time_us_.GetSendValue();
}
void QuicConfig::SetInitialStreamFlowControlWindowToSend(
uint32_t window_bytes) {
if (window_bytes < kMinimumFlowControlSendWindow) {
QUIC_BUG << "Initial stream flow control receive window (" << window_bytes
<< ") cannot be set lower than default ("
<< kMinimumFlowControlSendWindow << ").";
window_bytes = kMinimumFlowControlSendWindow;
}
initial_stream_flow_control_window_bytes_.SetSendValue(window_bytes);
}
uint32_t QuicConfig::GetInitialStreamFlowControlWindowToSend() const {
return initial_stream_flow_control_window_bytes_.GetSendValue();
}
bool QuicConfig::HasReceivedInitialStreamFlowControlWindowBytes() const {
return initial_stream_flow_control_window_bytes_.HasReceivedValue();
}
uint32_t QuicConfig::ReceivedInitialStreamFlowControlWindowBytes() const {
return initial_stream_flow_control_window_bytes_.GetReceivedValue();
}
void QuicConfig::SetInitialSessionFlowControlWindowToSend(
uint32_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);
}
uint32_t QuicConfig::GetInitialSessionFlowControlWindowToSend() const {
return initial_session_flow_control_window_bytes_.GetSendValue();
}
bool QuicConfig::HasReceivedInitialSessionFlowControlWindowBytes() const {
return initial_session_flow_control_window_bytes_.HasReceivedValue();
}
uint32_t QuicConfig::ReceivedInitialSessionFlowControlWindowBytes() const {
return initial_session_flow_control_window_bytes_.GetReceivedValue();
}
void QuicConfig::SetSocketReceiveBufferToSend(uint32_t tcp_receive_window) {
socket_receive_buffer_.SetSendValue(tcp_receive_window);
}
bool QuicConfig::HasReceivedSocketReceiveBuffer() const {
return socket_receive_buffer_.HasReceivedValue();
}
uint32_t QuicConfig::ReceivedSocketReceiveBuffer() const {
return socket_receive_buffer_.GetReceivedValue();
}
void QuicConfig::SetMultipathEnabled(bool multipath_enabled) {
uint32_t value = multipath_enabled ? 1 : 0;
multipath_enabled_.set(value, value);
}
bool QuicConfig::MultipathEnabled() const {
return multipath_enabled_.GetUint32() > 0;
}
void QuicConfig::SetDisableConnectionMigration() {
connection_migration_disabled_.SetSendValue(1);
}
bool QuicConfig::DisableConnectionMigration() const {
return connection_migration_disabled_.HasReceivedValue();
}
void QuicConfig::SetAlternateServerAddressToSend(
const IPEndPoint& alternate_server_address) {
alternate_server_address_.SetSendValue(alternate_server_address);
}
bool QuicConfig::HasReceivedAlternateServerAddress() const {
return alternate_server_address_.HasReceivedValue();
}
const IPEndPoint& QuicConfig::ReceivedAlternateServerAddress() const {
return alternate_server_address_.GetReceivedValue();
}
bool QuicConfig::negotiated() const {
// TODO(ianswett): Add the negotiated parameters once and iterate over all
// of them in negotiated, ToHandshakeMessage, ProcessClientHello, and
// ProcessServerHello.
return idle_connection_state_lifetime_seconds_.negotiated() &&
max_streams_per_connection_.negotiated();
}
void QuicConfig::SetDefaults() {
idle_connection_state_lifetime_seconds_.set(kMaximumIdleTimeoutSecs,
kDefaultIdleTimeoutSecs);
silent_close_.set(1, 0);
SetMaxStreamsPerConnection(kDefaultMaxStreamsPerConnection,
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);
}
void QuicConfig::ToHandshakeMessage(CryptoHandshakeMessage* out) const {
idle_connection_state_lifetime_seconds_.ToHandshakeMessage(out);
silent_close_.ToHandshakeMessage(out);
max_streams_per_connection_.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);
socket_receive_buffer_.ToHandshakeMessage(out);
connection_migration_disabled_.ToHandshakeMessage(out);
connection_options_.ToHandshakeMessage(out);
alternate_server_address_.ToHandshakeMessage(out);
}
QuicErrorCode QuicConfig::ProcessPeerHello(
const CryptoHandshakeMessage& peer_hello,
HelloType hello_type,
string* error_details) {
DCHECK(error_details != nullptr);
QuicErrorCode error = QUIC_NO_ERROR;
if (error == QUIC_NO_ERROR) {
error = idle_connection_state_lifetime_seconds_.ProcessPeerHello(
peer_hello, hello_type, error_details);
}
if (error == QUIC_NO_ERROR) {
error =
silent_close_.ProcessPeerHello(peer_hello, hello_type, error_details);
}
if (error == QUIC_NO_ERROR) {
error = max_streams_per_connection_.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 = socket_receive_buffer_.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) {
error = alternate_server_address_.ProcessPeerHello(peer_hello, hello_type,
error_details);
}
return error;
}
} // namespace net