--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/internet-node/udp-socket.cc Fri May 04 15:04:07 2007 +0200
@@ -0,0 +1,278 @@
+/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2007 INRIA
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
+ */
+#include "ns3/node.h"
+#include "udp-socket.h"
+#include "udp.h"
+#include "ipv4-end-point.h"
+#include "ipv4-l4-demux.h"
+
+namespace ns3 {
+
+UdpSocket::UdpSocket (Node *node, Udp *udp)
+ : m_endPoint (0),
+ m_node (node),
+ m_udp (udp),
+ m_errno (ENOTERROR),
+ m_shutdownSend (false),
+ m_shutdownRecv (false),
+ m_connected (false)
+{
+ m_udp->Ref ();
+ m_node->Ref ();
+}
+UdpSocket::~UdpSocket ()
+{
+ if (m_node != 0)
+ {
+ m_node->Unref ();
+ m_node = 0;
+ }
+ if (m_endPoint != 0)
+ {
+ NS_ASSERT (m_udp != 0);
+ /**
+ * Note that this piece of code is a bit tricky:
+ * when DeAllocate is called, it will call into
+ * Ipv4EndPointDemux::Deallocate which triggers
+ * a delete of the associated endPoint which triggers
+ * in turn a call to the method ::Destroy below
+ * will will zero the m_endPoint field.
+ */
+ NS_ASSERT (m_endPoint != 0);
+ m_udp->DeAllocate (m_endPoint);
+ NS_ASSERT (m_endPoint == 0);
+ }
+ if (m_udp != 0)
+ {
+ m_udp->Unref ();
+ m_udp = 0;
+ }
+}
+
+Node *
+UdpSocket::PeekNode (void) const
+{
+ return m_node;
+}
+
+void
+UdpSocket::Destroy (void)
+{
+ if (m_node != 0)
+ {
+ m_node->Unref ();
+ m_node = 0;
+ }
+ m_endPoint = 0;
+ if (m_udp != 0)
+ {
+ m_udp->Unref ();
+ m_udp = 0;
+ }
+}
+int
+UdpSocket::FinishBind (void)
+{
+ m_endPoint->SetRxCallback (MakeCallback (&UdpSocket::ForwardUp, this));
+ m_endPoint->SetDestroyCallback (MakeCallback (&UdpSocket::Destroy, this));
+ if (m_endPoint == 0)
+ {
+ return -1;
+ }
+ return 0;
+}
+
+int
+UdpSocket::Bind (void)
+{
+ m_endPoint = m_udp->Allocate ();
+ return FinishBind ();
+}
+int
+UdpSocket::Bind (Ipv4Address address)
+{
+ m_endPoint = m_udp->Allocate (address);
+ return FinishBind ();
+}
+int
+UdpSocket::Bind (uint16_t port)
+{
+ m_endPoint = m_udp->Allocate (port);
+ return FinishBind ();
+}
+int
+UdpSocket::Bind (Ipv4Address address, uint16_t port)
+{
+ m_endPoint = m_udp->Allocate (address, port);
+ return FinishBind ();
+}
+
+enum Socket::SocketErrno
+UdpSocket::GetErrno (void) const
+{
+ return m_errno;
+}
+int
+UdpSocket::ShutdownSend (void)
+{
+ m_shutdownSend = true;
+ return 0;
+}
+int
+UdpSocket::ShutdownRecv (void)
+{
+ m_shutdownRecv = false;
+ return 0;
+}
+
+void
+UdpSocket::DoClose(ns3::Callback<void, Socket*> closeCompleted)
+{
+ // XXX: we should set the close state and check it in all API methods.
+ if (!closeCompleted.IsNull ())
+ {
+ closeCompleted (this);
+ }
+}
+void
+UdpSocket::DoConnect(const Ipv4Address & address,
+ uint16_t portNumber,
+ ns3::Callback<void, Socket*> connectionSucceeded,
+ ns3::Callback<void, Socket*> connectionFailed,
+ ns3::Callback<void, Socket*> halfClose)
+{
+ m_defaultAddress = address;
+ m_defaultPort = portNumber;
+ if (!connectionSucceeded.IsNull ())
+ {
+ connectionSucceeded (this);
+ }
+ m_connected = true;
+}
+int
+UdpSocket::DoAccept(ns3::Callback<bool, Socket*, const Ipv4Address&, uint16_t> connectionRequest,
+ ns3::Callback<void, Socket*, const Ipv4Address&, uint16_t> newConnectionCreated,
+ ns3::Callback<void, Socket*> closeRequested)
+{
+ // calling accept on a udp socket is a programming error.
+ m_errno = EOPNOTSUPP;
+ return -1;
+}
+int
+UdpSocket::DoSend (const uint8_t* buffer,
+ uint32_t size,
+ ns3::Callback<void, Socket*, uint32_t> dataSent)
+{
+ if (!m_connected)
+ {
+ m_errno = ENOTCONN;
+ return -1;
+ }
+ Packet p;
+ if (buffer == 0)
+ {
+ p = Packet (size);
+ }
+ else
+ {
+ p = Packet (buffer, size);
+ }
+ return DoSendPacketTo (p, m_defaultAddress, m_defaultPort, dataSent);
+}
+int
+UdpSocket::DoSendPacketTo (const Packet &p, Ipv4Address daddr, uint16_t dport,
+ ns3::Callback<void, Socket*, uint32_t> dataSent)
+{
+ if (m_endPoint == 0)
+ {
+ if (Bind () == -1)
+ {
+ NS_ASSERT (m_endPoint == 0);
+ return -1;
+ }
+ NS_ASSERT (m_endPoint != 0);
+ }
+ if (m_shutdownSend)
+ {
+ m_errno = ESHUTDOWN;
+ return -1;
+ }
+ m_udp->Send (p, m_endPoint->GetLocalAddress (), daddr,
+ m_endPoint->GetLocalPort (), dport);
+ if (!dataSent.IsNull ())
+ {
+ dataSent (this, p.GetSize ());
+ }
+ return 0;
+}
+int
+UdpSocket::DoSendTo(const Ipv4Address &address,
+ uint16_t port,
+ const uint8_t *buffer,
+ uint32_t size,
+ ns3::Callback<void, Socket*, uint32_t> dataSent)
+{
+ if (m_connected)
+ {
+ m_errno = EISCONN;
+ return -1;
+ }
+ Packet p;
+ if (buffer == 0)
+ {
+ p = Packet (size);
+ }
+ else
+ {
+ p = Packet (buffer, size);
+ }
+ return DoSendPacketTo (p, address, port, dataSent);
+}
+void
+UdpSocket::DoRecv(ns3::Callback<void, Socket*, const uint8_t*, uint32_t,const Ipv4Address&, uint16_t> callback)
+{
+ m_rxCallback = callback;
+}
+void
+UdpSocket::DoRecvDummy(ns3::Callback<void, Socket*, uint32_t,const Ipv4Address&, uint16_t> callback)
+{
+ m_dummyRxCallback = callback;
+}
+
+void
+UdpSocket::ForwardUp (const Packet &packet, Ipv4Address saddr, uint16_t sport)
+{
+ if (m_shutdownRecv)
+ {
+ return;
+ }
+ Packet p = packet;
+ if (!m_dummyRxCallback.IsNull ())
+ {
+ m_dummyRxCallback (this, p.GetSize (), saddr, sport);
+ }
+ if (!m_rxCallback.IsNull ())
+ {
+ m_rxCallback (this, p.PeekData (), p.GetSize (), saddr, sport);
+ }
+}
+
+}//namespace ns3