2 # NEPI, a framework to manage network experiments
3 # Copyright (C) 2014 INRIA
5 # This program is free software: you can redistribute it and/or modify
6 # it under the terms of the GNU General Public License as published by
7 # the Free Software Foundation, either version 3 of the License, or
8 # (at your option) any later version.
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 # GNU General Public License for more details.
15 # You should have received a copy of the GNU General Public License
16 # along with this program. If not, see <http://www.gnu.org/licenses/>.
18 # Author: Alina Quereilhac <alina.quereilhac@inria.fr>
28 from optparse import OptionParser, SUPPRESS_HELP
30 from nepi.resources.ns3.ns3client import NS3Client
31 from nepi.resources.ns3.ns3server import NS3WrapperMessage
33 class LinuxNS3Client(NS3Client):
34 def __init__(self, simulation):
35 super(LinuxNS3Client, self).__init__()
36 self._simulation = weakref.ref(simulation)
38 self._socat_proc = None
42 return self._simulation()
44 def send_msg(self, msg_type, *args, **kwargs):
45 msg = [msg_type, args, kwargs]
48 item = cPickle.dumps(item)
49 return base64.b64encode(item)
51 encoded = "|".join(map(encode, msg))
53 if self.simulation.node.get("hostname") in ['localhost', '127.0.0.1']:
54 sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
55 sock.connect(self.simulation.remote_socket)
56 sock.send("%s\n" % encoded)
57 reply = sock.recv(1024)
61 command = ( "python -c 'import socket;"
62 "sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM);"
63 "sock.connect(\"%(socket_addr)s\");"
64 "msg = \"%(encoded_message)s\\n\";"
66 "reply = sock.recv(1024);"
69 "encoded_message": encoded,
70 "socket_addr": self.simulation.remote_socket,
73 (reply, err), proc = self.simulation.node.execute(command)
75 if (err and proc.poll()) or reply.strip() == "":
76 msg = " Couldn't connect to remote socket %s" % (
77 self.simulation.remote_socket)
78 self.simulation.error(msg, reply, err)
79 raise RuntimeError(msg)
81 reply = cPickle.loads(base64.b64decode(reply))
85 def create(self, *args, **kwargs):
86 return self.send_msg(NS3WrapperMessage.CREATE, *args, **kwargs)
88 def factory(self, *args, **kwargs):
89 return self.send_msg(NS3WrapperMessage.FACTORY, *args, **kwargs)
91 def invoke(self, *args, **kwargs):
92 return self.send_msg(NS3WrapperMessage.INVOKE, *args, **kwargs)
94 def set(self, *args, **kwargs):
95 return self.send_msg(NS3WrapperMessage.SET, *args, **kwargs)
97 def get(self, *args, **kwargs):
98 return self.send_msg(NS3WrapperMessage.GET, *args, **kwargs)
100 def flush(self, *args, **kwargs):
101 return self.send_msg(NS3WrapperMessage.FLUSH, *args, **kwargs)
103 def start(self, *args, **kwargs):
104 return self.send_msg(NS3WrapperMessage.START, *args, **kwargs)
106 def stop(self, *args, **kwargs):
107 return self.send_msg(NS3WrapperMessage.STOP, *args, **kwargs)
109 def shutdown(self, *args, **kwargs):
111 return self.send_msg(NS3WrapperMessage.SHUTDOWN, *args, **kwargs)