from nepi.execution.trace import Trace, TraceAttr
from nepi.execution.resource import clsinit_copy, ResourceState, \
ResourceAction, reschedule_delay
-from nepi.resources.linux.ccn.ccnapplication import LinuxCCNApplication
+from nepi.resources.linux.application import LinuxApplication
+from nepi.resources.linux.ccn.ccnd import LinuxCCND
from nepi.util.timefuncs import tnow
import os
+import socket
+import time
# TODO: Add rest of options for ccndc!!!
# Implement ENTRY DELETE!!
@clsinit_copy
-class LinuxFIBEntry(LinuxCCNApplication):
+class LinuxFIBEntry(LinuxApplication):
_rtype = "LinuxFIBEntry"
@classmethod
flags = Flags.ExecReadOnly)
host = Attribute("host",
- "Peer host used in network connection for this FIB entry. ",
+ "Peer hostname used in network connection for this FIB entry. ",
flags = Flags.ExecReadOnly)
port = Attribute("port",
"for this FIB entry.",
flags = Flags.ExecReadOnly)
+ ip = Attribute("ip",
+ "Peer host public IP used in network connection for this FIB entry. ",
+ flags = Flags.ReadOnly)
+
cls._register_attribute(uri)
cls._register_attribute(protocol)
cls._register_attribute(host)
cls._register_attribute(port)
+ cls._register_attribute(ip)
+
+ @classmethod
+ def _register_traces(cls):
+ ping = Trace("ping", "Ping to the peer end")
+ mtr = Trace("mtr", "Mtr to the peer end")
+ traceroute = Trace("traceroute", "Tracerout to the peer end")
+
+ cls._register_trace(ping)
+ cls._register_trace(mtr)
+ cls._register_trace(traceroute)
def __init__(self, ec, guid):
super(LinuxFIBEntry, self).__init__(ec, guid)
self._home = "fib-%s" % self.guid
+ self._ping = None
+ self._mtr = None
+ self._traceroute = None
+ @property
+ def ccnd(self):
+ ccnd = self.get_connected(LinuxCCND.rtype())
+ if ccnd: return ccnd[0]
+ return None
+
+ @property
+ def node(self):
+ if self.ccnd: return self.ccnd.node
+ return None
+
+ def trace(self, name, attr = TraceAttr.ALL, block = 512, offset = 0):
+ if name == "ping":
+ return self.ec.trace(self._ping, "stdout", attr, block, offset)
+ if name == "mtr":
+ return self.ec.trace(self._mtr, "stdout", attr, block, offset)
+ if name == "traceroute":
+ return self.ec.trace(self._traceroute, "stdout", attr, block, offset)
+
+ return super(LinuxFIBEntry, self).trace(name, attr, block, offset)
+
def deploy(self):
# Wait until associated ccnd is provisioned
if not self.ccnd or self.ccnd.state < ResourceState.READY:
# ccnr needs to wait until ccnd is deployed and running
self.ec.schedule(reschedule_delay, self.deploy)
else:
- command = self._start_command
- env = self._environment
+ try:
+ if not self.get("ip"):
+ host = self.get("host")
+ ip = socket.gethostbyname(host)
+ self.set("ip", ip)
- self.set("command", command)
- self.set("env", env)
+ if not self.get("command"):
+ self.set("command", self._start_command)
- self.info("Deploying command '%s' " % command)
+ if not self.get("env"):
+ self.set("env", self._environment)
- self.node.mkdir(self.app_home)
- (out, err), proc = self.execute_command(command, env)
-
- if proc.poll():
- self._state = ResourceState.FAILED
- msg = "Failed to execute command"
- self.error(msg, out, err)
- raise RuntimeError, msg
+ command = self.get("command")
+ self.info("Deploying command '%s' " % command)
+ self.discover()
+ self.provision()
+ self.configure()
+ except:
+ self.fail()
+ raise
+
self.debug("----- READY ---- ")
- self._ready_time = tnow()
- self._state = ResourceState.READY
+ self.set_ready()
+
+ def upload_start_command(self):
+ command = self.get("command")
+ env = self.get("env")
+
+ # We want to make sure the FIB entries are created
+ # before the experiment starts.
+ # Run the command as a bash script in the background,
+ # in the host ( but wait until the command has
+ # finished to continue )
+ env = env and self.replace_paths(env)
+ command = self.replace_paths(command)
+
+ # ccndc seems to return exitcode OK even if a (dns) error
+ # occurred, so we need to account for this case here.
+ (out, err), proc = self.execute_command(command,
+ env, blocking = True)
+
+ if proc.poll():
+ msg = "Failed to execute command"
+ self.error(msg, out, err)
+ self.fail()
+ raise RuntimeError, msg
+
+ def configure(self):
+ if self.trace_enabled("ping"):
+ self.info("Configuring PING trace")
+ self._ping = self.ec.register_resource("LinuxPing")
+ self.ec.set(self._ping, "printTimestamp", True)
+ self.ec.set(self._ping, "target", self.get("host"))
+ self.ec.register_connection(self._ping, self.node.guid)
+ # schedule ping deploy
+ self.ec.deploy(guids=[self._ping], group = self.deployment_group)
+
+ if self.trace_enabled("mtr"):
+ self.info("Configuring MTR trace")
+ self._mtr = self.ec.register_resource("LinuxMtr")
+ self.ec.set(self._mtr, "noDns", True)
+ self.ec.set(self._mtr, "printTimestamp", True)
+ self.ec.set(self._mtr, "continuous", True)
+ self.ec.set(self._mtr, "target", self.get("host"))
+ self.ec.register_connection(self._mtr, self.node.guid)
+ # schedule mtr deploy
+ self.ec.deploy(guids=[self._mtr], group = self.deployment_group)
+
+ if self.trace_enabled("traceroute"):
+ self.info("Configuring TRACEROUTE trace")
+ self._traceroute = self.ec.register_resource("LinuxTraceroute")
+ self.ec.set(self._traceroute, "printTimestamp", True)
+ self.ec.set(self._traceroute, "continuous", True)
+ self.ec.set(self._traceroute, "target", self.get("host"))
+ self.ec.register_connection(self._traceroute, self.node.guid)
+ # schedule mtr deploy
+ self.ec.deploy(guids=[self._traceroute], group = self.deployment_group)
def start(self):
- if self._state in [ResourceState.READY, ResourceState.STARTED]:
+ if self.state == ResourceState.READY:
command = self.get("command")
self.info("Starting command '%s'" % command)
- self._start_time = tnow()
- self._state = ResourceState.STARTED
+ self.set_started()
else:
msg = " Failed to execute command '%s'" % command
self.error(msg, out, err)
- self._state = ResourceState.FAILED
+ self.fail()
raise RuntimeError, msg
def stop(self):
if proc.poll():
pass
- self._stop_time = tnow()
- self._state = ResourceState.STOPPED
-
- @property
- def state(self):
- return self._state
+ self.set_stopped()
@property
def _start_command(self):
uri = self.get("uri") or ""
protocol = self.get("protocol") or ""
- host = self.get("host") or ""
+ ip = self.get("ip") or ""
port = self.get("port") or ""
# add ccnx:/example.com/ udp 224.0.0.204 52428
return "ccndc add %(uri)s %(protocol)s %(host)s %(port)s" % ({
"uri" : uri,
"protocol": protocol,
- "host": host,
+ "host": ip,
"port": port
})
def _stop_command(self):
uri = self.get("uri") or ""
protocol = self.get("protocol") or ""
- host = self.get("host") or ""
+ ip = self.get("ip") or ""
port = self.get("port") or ""
# add ccnx:/example.com/ udp 224.0.0.204 52428
return "ccndc del %(uri)s %(protocol)s %(host)s %(port)s" % ({
"uri" : uri,
"protocol": protocol,
- "host": host,
+ "host": ip,
"port": port
})
+ @property
+ def _environment(self):
+ return self.ccnd.path
+
def valid_connection(self, guid):
# TODO: Validate!
return True
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