- def udp_connect(self, remote_endpoint, connection_app_home,
- connection_run_home, cipher, cipher_key, bwlimit, txqueuelen):
- udp_connect_command = self._udp_connect_command(
- remote_endpoint, connection_run_home,
- cipher, cipher_key, bwlimit, txqueuelen)
-
- # upload command to connect.sh script
- shfile = os.path.join(connection_app_home, "udp-connect.sh")
- self.node.upload_command(udp_connect_command,
- shfile = shfile,
- overwrite = False)
-
- # invoke connect script
- cmd = "bash %s" % shfile
- (out, err), proc = self.node.run(cmd, connection_run_home)
-
- # check if execution errors occurred
- msg = "Failed to connect endpoints "
-
- if proc.poll():
- self.error(msg, out, err)
- raise RuntimeError, msg
-
- # Wait for pid file to be generated
- pid, ppid = self.node.wait_pid(connection_run_home)
-
- # If the process is not running, check for error information
- # on the remote machine
- if not pid or not ppid:
- (out, err), proc = self.node.check_errors(connection_run_home)
- # Out is what was written in the stderr file
- if err:
- msg = " Failed to start command '%s' " % command
- self.error(msg, out, err)
- raise RuntimeError, msg
-
- return pid, ppid
-
- def _udp_connect_command(self, remote_endpoint, connection_run_home,
- cipher, cipher_key, bwlimit, txqueuelen):
-
- # Set the remote endpoint
- self.set("pointopoint", remote_endpoint.get("ip4"))
-
- remote_ip = socket.gethostbyname(
- remote_endpoint.node.get("ip"))
-
- local_port_file = os.path.join(connection_run_home,
- "local_port")
-
- remote_port_file = os.path.join(connection_run_home,
- "remote_port")
-
- ret_file = os.path.join(connection_run_home,
- "ret_file")
-
- # Generate UDP connect command
- # Use pl-vif-up.py script to configure TAP with peer info
- vif_up_command = self._vif_up_command
-
- command = ["( "]
- command.append(vif_up_command)
-
- # Use pl-vid-udp-connect.py to stablish the tunnel between endpoints
- command.append(") & (")
- command.append("sudo -S")
- command.append("PYTHONPATH=$PYTHONPATH:${SRC}")
- command.append("python ${SRC}/pl-vif-udp-connect.py")
- command.append("-t %s" % self.vif_type)
- command.append("-S %s " % self.sock_name)
- command.append("-l %s " % local_port_file)
- command.append("-r %s " % remote_port_file)
- command.append("-H %s " % remote_ip)
- command.append("-R %s " % ret_file)
- if cipher:
- command.append("-c %s " % cipher)
- if cipher_key:
- command.append("-k %s " % cipher_key)
- if txqueuelen:
- command.append("-q %s " % txqueuelen)
- if bwlimit:
- command.append("-b %s " % bwlimit)
-
- command.append(")")
-
- command = " ".join(command)
- command = self.replace_paths(command)
-
- return command
-
- def _gre_connect_command(self, remote_endpoint, connection_run_home):
- # Set the remote endpoint
- self.set("pointopoint", remote_endpoint.get("ip4"))
- self.set("greRemote", socket.gethostbyname(
- remote_endpoint.node.get("ip")))