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* Copyright 2004--2005, Google Inc.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include "talk/p2p/base/udpport.h"
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#include "talk/base/asyncpacketsocket.h"
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#include "talk/base/logging.h"
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#include "talk/p2p/base/common.h"
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const char LOCAL_PORT_TYPE[] = "local";
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UDPPort::UDPPort(talk_base::Thread* thread,
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talk_base::PacketSocketFactory* factory,
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talk_base::Network* network,
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const talk_base::IPAddress& ip, int min_port, int max_port)
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: Port(thread, LOCAL_PORT_TYPE, factory, network, ip, min_port, max_port),
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bool UDPPort::Init() {
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socket_ = factory_->CreateUdpSocket(
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talk_base::SocketAddress(ip_, 0), min_port_, max_port_);
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LOG_J(LS_WARNING, this) << "UDP socket creation failed";
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socket_->SignalAddressReady.connect(this, &UDPPort::OnAddressReady);
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socket_->SignalReadPacket.connect(this, &UDPPort::OnReadPacket);
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void UDPPort::PrepareAddress() {
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if (socket_->GetState() == talk_base::AsyncPacketSocket::STATE_BOUND)
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AddAddress(socket_->GetLocalAddress(), "udp", true);
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Connection* UDPPort::CreateConnection(const Candidate& address,
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CandidateOrigin origin) {
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if (address.protocol() != "udp")
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Connection* conn = new ProxyConnection(this, 0, address);
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int UDPPort::SendTo(const void* data, size_t size,
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const talk_base::SocketAddress& addr, bool payload) {
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int sent = socket_->SendTo(data, size, addr);
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error_ = socket_->GetError();
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LOG_J(LS_ERROR, this) << "UDP send of " << size
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<< " bytes failed with error " << error_;
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int UDPPort::SetOption(talk_base::Socket::Option opt, int value) {
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return socket_->SetOption(opt, value);
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int UDPPort::GetError() {
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void UDPPort::OnAddressReady(talk_base::AsyncPacketSocket* socket,
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const talk_base::SocketAddress& address) {
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AddAddress(address, "udp", true);
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void UDPPort::OnReadPacket(
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talk_base::AsyncPacketSocket* socket, const char* data, size_t size,
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const talk_base::SocketAddress& remote_addr) {
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ASSERT(socket == socket_);
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if (Connection* conn = GetConnection(remote_addr)) {
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conn->OnReadPacket(data, size);
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Port::OnReadPacket(data, size, remote_addr);
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} // namespace cricket