from nepi.util.timefuncs import tnow, tdiffsec
import os
-import socket
import time
PYTHON_VSYS_VERSION = "1.0"
@classmethod
def _register_attributes(cls):
- ip4 = Attribute("ip4", "IPv4 Address",
+ endpoint_ip = Attribute("endpoint_ip", "IP of the endpoint. This is the attribute "
+ "you should use to establish a tunnel or a remote "
+ "connection between endpoint",
flags = Flags.Design)
mac = Attribute("mac", "MAC Address",
flags = Flags.Design)
- prefix4 = Attribute("prefix4", "IPv4 network prefix",
+ endpoint_prefix = Attribute("endpoint_prefix", "IPv4 network prefix of the endpoint",
type = Types.Integer,
flags = Flags.Design)
"Bash script to be executed before releasing the resource",
flags = Flags.Design)
- cls._register_attribute(ip4)
+ cls._register_attribute(endpoint_ip)
cls._register_attribute(mac)
- cls._register_attribute(prefix4)
+ cls._register_attribute(endpoint_prefix)
cls._register_attribute(mtu)
cls._register_attribute(devname)
cls._register_attribute(up)
return True
+
+ def initiate_udp_connection(self, remote_endpoint, connection_app_home,
+ connection_run_home, cipher, cipher_key, bwlimit, txqueuelen):
+ port = self.udp_connect(remote_endpoint, connection_app_home,
+ connection_run_home, cipher, cipher_key, bwlimit, txqueuelen)
+ return port
+
+
def udp_connect(self, remote_endpoint, connection_app_home,
connection_run_home, cipher, cipher_key, bwlimit, txqueuelen):
udp_connect_command = self._udp_connect_command(
cipher, cipher_key, bwlimit, txqueuelen)
# upload command to connect.sh script
- shfile = os.path.join(connection_app_home, "udp-connect.sh")
+ shfile = os.path.join(self.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)
+ (out, err), proc = self.node.run(cmd, self.run_home)
# check if execution errors occurred
msg = "Failed to connect endpoints "
raise RuntimeError, msg
# Wait for pid file to be generated
- pid, ppid = self.node.wait_pid(connection_run_home)
+ self._pid, self._ppid = self.node.wait_pid(self.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)
+ if not self._pid or not self._ppid:
+ (out, err), proc = self.node.check_errors(self.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
+ port = self.wait_local_port()
+
+ return port
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"))
+ self.set("pointopoint", remote_endpoint.get("endpoint_ip"))
- remote_ip = socket.gethostbyname(
- remote_endpoint.node.get("ip"))
+ remote_ip = remote_endpoint.node.get("ip")
- local_port_file = os.path.join(connection_run_home,
+ local_port_file = os.path.join(self.run_home,
"local_port")
- remote_port_file = os.path.join(connection_run_home,
+ remote_port_file = os.path.join(self.run_home,
"remote_port")
- ret_file = os.path.join(connection_run_home,
+ ret_file = os.path.join(self.run_home,
"ret_file")
# Generate UDP connect command
return command
+ def establish_udp_connection(self, remote_endpoint, port):
+ # upload remote port number to file
+ rem_port = "%s\n" % port
+ self.node.upload(rem_port,
+ os.path.join(self.run_home, "remote_port"),
+ text = True,
+ overwrite = False)
+
+ def verify_connection(self):
+ self.wait_result()
+
+ def terminate_connection(self):
+ if self._pid and self._ppid:
+ (out, err), proc = self.node.kill(self._pid, self._ppid,
+ sudo = True)
+
+ # check if execution errors occurred
+ if proc.poll() and err:
+ msg = " Failed to Kill the Tap"
+ self.error(msg, out, err)
+ raise RuntimeError, msg
+
+ def check_status(self):
+ return self.node.status(self._pid, self._ppid)
+
+ def wait_local_port(self):
+ """ Waits until the local_port file for the endpoint is generated,
+ and returns the port number
+
+ """
+ return self.wait_file("local_port")
+
+ def wait_result(self):
+ """ Waits until the return code file for the endpoint is generated
+
+ """
+ return self.wait_file("ret_file")
+
+ def wait_file(self, filename):
+ """ Waits until file on endpoint is generated """
+ result = None
+ delay = 1.0
+
+ for i in xrange(20):
+ (out, err), proc = self.node.check_output(
+ self.run_home, filename)
+ if out:
+ result = out.strip()
+ break
+ else:
+ time.sleep(delay)
+ delay = delay * 1.5
+ else:
+ msg = "Couldn't retrieve %s" % filename
+ self.error(msg, out, err)
+ raise RuntimeError, msg
+
+ return result
+
+
+
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")))
+ self.set("pointopoint", remote_endpoint.get("endpoint_ip"))
+ self.set("greRemote", remote_endpoint.node.get("ip"))
# Generate GRE connect command
return command
+
@property
def _start_command(self):
if self.gre_enabled:
command = ["sudo -S python ${SRC}/pl-vif-create.py"]
command.append("-t %s" % self.vif_type)
- command.append("-a %s" % self.get("ip4"))
- command.append("-n %d" % self.get("prefix4"))
+ command.append("-a %s" % self.get("endpoint_ip"))
+ command.append("-n %d" % self.get("endpoint_prefix"))
command.append("-f %s " % self.vif_name_file)
command.append("-S %s " % self.sock_name)
command.append("-u %s" % self.node.get("username"))
command.append("-N %s" % device_name)
command.append("-t %s" % self.vif_type)
- command.append("-a %s" % self.get("ip4"))
- command.append("-n %d" % self.get("prefix4"))
+ command.append("-a %s" % self.get("endpoint_ip"))
+ command.append("-n %d" % self.get("endpoint_prefix"))
if self.get("snat") == True:
command.append("-s")
git://git.onelab.eu / nepi.git / blobdiff