Tunnel between 2 ns-3s in remote PL hosts

[nepi.git] / src / nepi / resources / planetlab / ns3 / fdudptunnel.py

diff --git a/src/nepi/resources/planetlab/ns3/fdudptunnel.py b/src/nepi/resources/planetlab/ns3/fdudptunnel.py
new file mode 100644 (file)
index 0000000..0ce26f8
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+++ b/src/nepi/resources/planetlab/ns3/fdudptunnel.py
@@ -0,0 +1,75 @@
+#
+#    NEPI, a framework to manage network experiments
+#    Copyright (C) 2013 INRIA
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation, either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    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, see <http://www.gnu.org/licenses/>.
+#
+# Author: Alina Quereilhac <alina.quereilhac@inria.fr>
+
+from nepi.execution.attribute import Attribute, Flags, Types
+from nepi.execution.resource import clsinit_copy, ResourceState
+from nepi.resources.linux.ns3.fdudptunnel import LinuxNs3FdUdpTunnel
+from nepi.util.sshfuncs import ProcStatus
+from nepi.util.timefuncs import tnow, tdiffsec
+
+import base64
+import os
+import socket
+import time
+
+@clsinit_copy
+class PlanetlabNs3FdUdpTunnel(LinuxNs3FdUdpTunnel):
+    _rtype = "planetlab::ns3::FdUdpTunnel"
+    _help = "Constructs a tunnel between two Ns-3 FdNetdevices " \
+            "located in remote PlanetLab nodes using a UDP connection "
+    _platform = "planetlab::ns3"
+
+    def get_endpoints(self):
+        """ Returns the list of RM that are endpoints to the tunnel 
+        """
+        if not self._fd2 or not self._fd1:
+            from nepi.resources.ns3.ns3fdnetdevice import NS3BaseFdNetDevice
+            devices = self.get_connected(NS3BaseFdNetDevice.get_rtype())
+            if not devices or len(devices) != 2: 
+                msg = "Tunnel must be connected to exactly two FdNetDevices"
+                self.error(msg)
+                raise RuntimeError, msg
+
+            self._fd1 = devices[0]
+            self._fd2 = devices[1]
+            self._pi = True
+ 
+            # Set PI headers on
+            self._fd1.set("EncapsulationMode", "DixPi")
+            self._fd2.set("EncapsulationMode", "DixPi")
+        
+            simu = self._fd1.simulation
+            from nepi.resources.linux.node import LinuxNode
+            nodes = simu.get_connected(LinuxNode.get_rtype())
+            self._fd1node = nodes[0]
+     
+            simu = self._fd2.simulation
+            from nepi.resources.linux.node import LinuxNode
+            nodes = simu.get_connected(LinuxNode.get_rtype())
+            self._fd2node = nodes[0]
+
+            if self._fd1node.get("hostname") == \
+                    self._fd2node.get("hostname"):
+                msg = "Tunnel requires endpoints on different hosts"
+                self.error(msg)
+                raise RuntimeError, msg
+
+        return [self._fd1, self._fd2]
+
+