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// Copyright 2019 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/masque/masque_dispatcher.h"
#include "net/third_party/quiche/src/quic/masque/masque_server_session.h"
namespace quic {
MasqueDispatcher::MasqueDispatcher(
const QuicConfig* config,
const QuicCryptoServerConfig* crypto_config,
QuicVersionManager* version_manager,
std::unique_ptr<QuicConnectionHelperInterface> helper,
std::unique_ptr<QuicCryptoServerStreamBase::Helper> session_helper,
std::unique_ptr<QuicAlarmFactory> alarm_factory,
MasqueServerBackend* masque_server_backend,
uint8_t expected_server_connection_id_length)
: QuicSimpleDispatcher(config,
crypto_config,
version_manager,
std::move(helper),
std::move(session_helper),
std::move(alarm_factory),
masque_server_backend,
expected_server_connection_id_length),
masque_server_backend_(masque_server_backend) {}
std::unique_ptr<QuicSession> MasqueDispatcher::CreateQuicSession(
QuicConnectionId connection_id,
const QuicSocketAddress& self_address,
const QuicSocketAddress& peer_address,
absl::string_view /*alpn*/,
const ParsedQuicVersion& version) {
// The MasqueServerSession takes ownership of |connection| below.
QuicConnection* connection =
new QuicConnection(connection_id, self_address, peer_address, helper(),
alarm_factory(), writer(),
/*owns_writer=*/false, Perspective::IS_SERVER,
ParsedQuicVersionVector{version});
auto session = std::make_unique<MasqueServerSession>(
config(), GetSupportedVersions(), connection, this, this,
session_helper(), crypto_config(), compressed_certs_cache(),
masque_server_backend_);
session->Initialize();
return session;
}
bool MasqueDispatcher::OnFailedToDispatchPacket(
const ReceivedPacketInfo& packet_info) {
auto connection_id_registration = client_connection_id_registrations_.find(
packet_info.destination_connection_id);
if (connection_id_registration == client_connection_id_registrations_.end()) {
QUIC_DLOG(INFO) << "MasqueDispatcher failed to dispatch " << packet_info;
return false;
}
MasqueServerSession* masque_server_session =
connection_id_registration->second;
masque_server_session->HandlePacketFromServer(packet_info);
return true;
}
void MasqueDispatcher::RegisterClientConnectionId(
QuicConnectionId client_connection_id,
MasqueServerSession* masque_server_session) {
QUIC_DLOG(INFO) << "Registering encapsulated " << client_connection_id
<< " to MASQUE session "
<< masque_server_session->connection_id();
// Make sure we don't try to overwrite an existing registration with a
// different session.
QUIC_BUG_IF(client_connection_id_registrations_.find(client_connection_id) !=
client_connection_id_registrations_.end() &&
client_connection_id_registrations_[client_connection_id] !=
masque_server_session)
<< "Overwriting existing registration for " << client_connection_id;
client_connection_id_registrations_[client_connection_id] =
masque_server_session;
}
void MasqueDispatcher::UnregisterClientConnectionId(
QuicConnectionId client_connection_id) {
QUIC_DLOG(INFO) << "Unregistering " << client_connection_id;
client_connection_id_registrations_.erase(client_connection_id);
}
} // namespace quic