def session(): # configure default nodes node_map = nodemaps.NODES nodeutils.set_node_map(node_map) # create and return session session_fixture = Session(1, persistent=True) session_fixture.master = True assert os.path.exists(session_fixture.session_dir) # load emane services quagga.load_services() utility.load_services() # set location # session_fixture.master = True session_fixture.location.setrefgeo(47.57917, -122.13232, 2.00000) session_fixture.location.refscale = 150.0 # load emane models session_fixture.emane.loadmodels() # return session fixture yield session_fixture # cleanup print "shutting down session" session_fixture.shutdown() assert not os.path.exists(session_fixture.session_dir)
def main(): usagestr = "usage: %prog [-h] [options] [args]" parser = optparse.OptionParser(usage=usagestr) parser.set_defaults(numnodes=5) parser.add_option("-n", "--numnodes", dest="numnodes", type=int, help="number of nodes") def usage(msg=None, err=0): sys.stdout.write("\n") if msg: sys.stdout.write(msg + "\n\n") parser.print_help() sys.exit(err) # parse command line options (options, args) = parser.parse_args() if options.numnodes < 1: usage("invalid number of nodes: %s" % options.numnodes) for a in args: sys.stderr.write("ignoring command line argument: '%s'\n" % a) start = datetime.datetime.now() # IP subnet prefix = ipaddress.Ipv4Prefix("10.83.0.0/16") # session with some EMANE initialization cfg = {'verbose': 'false'} session = Session(1, config=cfg, persistent=True) session.master = True session.location.setrefgeo(47.57917, -122.13232, 2.00000) session.location.refscale = 150.0 session.config['emane_models'] = "RfPipe, Ieee80211abg, Bypass" session.emane.loadmodels() if 'server' in globals(): server.addsession(session) # EMANE WLAN print "creating EMANE WLAN wlan1" wlan = session.add_object(cls=EmaneNode, name="wlan1") wlan.setposition(x=80, y=50) names = EmaneIeee80211abgModel.getnames() values = list(EmaneIeee80211abgModel.getdefaultvalues()) # TODO: change any of the EMANE 802.11 parameter values here for i in range(0, len(names)): print "EMANE 80211 \"%s\" = \"%s\"" % (names[i], values[i]) try: values[names.index('pathlossmode')] = '2ray' except ValueError: values[names.index('propagationmodel')] = '2ray' session.emane.setconfig(wlan.objid, EmaneIeee80211abgModel.name, values) services_str = "zebra|OSPFv3MDR|IPForward" print "creating %d nodes with addresses from %s" % \ (options.numnodes, prefix) for i in xrange(1, options.numnodes + 1): tmp = session.add_object(cls=nodes.CoreNode, name="n%d" % i, objid=i) tmp.newnetif(wlan, ["%s/%s" % (prefix.addr(i), prefix.prefixlen)]) tmp.cmd( [constants.SYSCTL_BIN, "net.ipv4.icmp_echo_ignore_broadcasts=0"]) tmp.setposition(x=150 * i, y=150) session.services.addservicestonode(tmp, "", services_str) n.append(tmp) # this starts EMANE, etc. session.node_count = str(options.numnodes + 1) session.instantiate() # start a shell on node 1 n[1].term("bash") print "elapsed time: %s" % (datetime.datetime.now() - start)