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/*
* Copyright (C) 2017 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "LibWebRTCSocketClient.h"
#if !PLATFORM(COCOA)
#if USE(LIBWEBRTC)
#include "Connection.h"
#include "LibWebRTCNetworkMessages.h"
#include "Logging.h"
#include "NetworkRTCProvider.h"
#include <WebCore/SharedBuffer.h>
#include <wtf/Function.h>
#include <wtf/TZoneMallocInlines.h>
namespace WebKit {
WTF_MAKE_TZONE_ALLOCATED_IMPL(LibWebRTCSocketClient);
LibWebRTCSocketClient::LibWebRTCSocketClient(WebCore::LibWebRTCSocketIdentifier identifier, NetworkRTCProvider& rtcProvider, std::unique_ptr<rtc::AsyncPacketSocket>&& socket, Type type, Ref<IPC::Connection>&& connection)
: m_identifier(identifier)
, m_type(type)
, m_rtcProvider(rtcProvider)
, m_socket(WTFMove(socket))
, m_connection(WTFMove(connection))
{
ASSERT(m_socket);
m_socket->RegisterReceivedPacketCallback([this](auto* socket, auto& packet) {
signalReadPacket(socket, packet.payload().data(), packet.payload().size(), packet.source_address(), packet.arrival_time()->us_or(0));
});
m_socket->SignalSentPacket.connect(this, &LibWebRTCSocketClient::signalSentPacket);
m_socket->SubscribeCloseEvent(this, [this](rtc::AsyncPacketSocket* socket, int error) {
signalClose(socket, error);
});
switch (type) {
case Type::ServerConnectionTCP:
return;
case Type::ClientTCP:
m_socket->SignalConnect.connect(this, &LibWebRTCSocketClient::signalConnect);
m_socket->SignalAddressReady.connect(this, &LibWebRTCSocketClient::signalAddressReady);
return;
case Type::UDP:
m_socket->SignalConnect.connect(this, &LibWebRTCSocketClient::signalConnect);
signalAddressReady();
return;
}
}
void LibWebRTCSocketClient::sendTo(std::span<const uint8_t> data, const rtc::SocketAddress& socketAddress, const rtc::PacketOptions& options)
{
m_socket->SendTo(data.data(), data.size(), socketAddress, options);
auto error = m_socket->GetError();
RELEASE_LOG_ERROR_IF(error && m_sendError != error, Network, "LibWebRTCSocketClient::sendTo (ID=%" PRIu64 ") failed with error %d", m_identifier.toUInt64(), error);
m_sendError = error;
}
void LibWebRTCSocketClient::close()
{
ASSERT(m_socket);
auto result = m_socket->Close();
UNUSED_PARAM(result);
RELEASE_LOG_ERROR_IF(result, Network, "LibWebRTCSocketClient::close (ID=%" PRIu64 ") failed with error %d", m_identifier.toUInt64(), m_socket->GetError());
m_socket->DeregisterReceivedPacketCallback();
Ref { m_rtcProvider.get() }->takeSocket(m_identifier);
}
void LibWebRTCSocketClient::setOption(int option, int value)
{
ASSERT(m_socket);
auto result = m_socket->SetOption(static_cast<rtc::Socket::Option>(option), value);
UNUSED_PARAM(result);
RELEASE_LOG_ERROR_IF(result, Network, "LibWebRTCSocketClient::setOption(%d, %d) (ID=%" PRIu64 ") failed with error %d", option, value, m_identifier.toUInt64(), m_socket->GetError());
}
void LibWebRTCSocketClient::signalReadPacket(rtc::AsyncPacketSocket* socket, const unsigned char* value, size_t length, const rtc::SocketAddress& address, int64_t packetTime)
{
ASSERT_UNUSED(socket, m_socket.get() == socket);
std::span data(byteCast<uint8_t>(value), length);
m_connection->send(Messages::LibWebRTCNetwork::SignalReadPacket(m_identifier, data, RTCNetwork::IPAddress(address.ipaddr()), address.port(), packetTime, RTC::Network::EcnMarking::kNotEct), 0);
}
void LibWebRTCSocketClient::signalSentPacket(rtc::AsyncPacketSocket* socket, const rtc::SentPacket& sentPacket)
{
ASSERT_UNUSED(socket, m_socket.get() == socket);
m_connection->send(Messages::LibWebRTCNetwork::SignalSentPacket(m_identifier, sentPacket.packet_id, sentPacket.send_time_ms), 0);
}
void LibWebRTCSocketClient::signalAddressReady(rtc::AsyncPacketSocket* socket, const rtc::SocketAddress& address)
{
ASSERT_UNUSED(socket, m_socket.get() == socket);
m_connection->send(Messages::LibWebRTCNetwork::SignalAddressReady(m_identifier, RTCNetwork::SocketAddress(address)), 0);
}
void LibWebRTCSocketClient::signalAddressReady()
{
signalAddressReady(m_socket.get(), m_socket->GetLocalAddress());
}
void LibWebRTCSocketClient::signalConnect(rtc::AsyncPacketSocket* socket)
{
ASSERT_UNUSED(socket, m_socket.get() == socket);
m_connection->send(Messages::LibWebRTCNetwork::SignalConnect(m_identifier), 0);
}
void LibWebRTCSocketClient::signalClose(rtc::AsyncPacketSocket* socket, int error)
{
ASSERT_UNUSED(socket, m_socket.get() == socket);
m_connection->send(Messages::LibWebRTCNetwork::SignalClose(m_identifier, error), 0);
// We want to remove 'this' from the socket map now but we will destroy it asynchronously
// so that the socket parameter of signalClose remains alive as the caller of signalClose may actually being using it afterwards.
Ref rtcProvider = m_rtcProvider.get();
rtcProvider->callOnRTCNetworkThread([socket = rtcProvider->takeSocket(m_identifier)] { });
}
} // namespace WebKit
#endif // USE(LIBWEBRTC)
#endif // !PLATFORM(COCOA)
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