--- /dev/null
+#!/usr/bin/env python
+
+from nepi.core.design import ExperimentDescription, FactoriesProvider
+from nepi.core.execute import ExperimentController
+import ipaddr
+import math
+from optparse import OptionParser, SUPPRESS_HELP
+import os
+import signal
+import string
+import tempfile
+import time
+
+# Trak SIGTERM, and set global termination flag instead of dying
+TERMINATE = []
+def _finalize(sig,frame):
+ global TERMINATE
+ TERMINATE.append(None)
+signal.signal(signal.SIGTERM, _finalize)
+signal.signal(signal.SIGINT, _finalize)
+
+def create_slice_desc(slicename, plc_host, pl_user, pl_pwd, pl_ssh_key,
+ port_base, root_dir, exp_desc):
+ pl_provider = FactoriesProvider("planetlab")
+ slice_desc = exp_desc.add_testbed_description(pl_provider)
+ slice_desc.set_attribute_value("homeDirectory", root_dir)
+ slice_desc.set_attribute_value("slice", slicename)
+ slice_desc.set_attribute_value("sliceSSHKey", pl_ssh_key)
+ slice_desc.set_attribute_value("authUser", pl_user)
+ slice_desc.set_attribute_value("authPass", pl_pwd)
+ slice_desc.set_attribute_value("plcHost", plc_host)
+ slice_desc.set_attribute_value("tapPortBase", port_base)
+ # Kills all running processes before starting the experiment
+ slice_desc.set_attribute_value("dedicatedSlice", True)
+ # Delets all directories in the slice's home directory of each node
+ # ATTENTION: This will remove result files from previous runs!!
+ slice_desc.set_attribute_value("cleanRoot", True)
+ slice_desc.set_attribute_value("plLogLevel", "DEBUG")
+ return slice_desc
+
+def create_node(hostname, pl_inet, slice_desc):
+ pl_node = slice_desc.create("Node")
+ pl_node.set_attribute_value("hostname", hostname)
+ pl_node.set_attribute_value("label", hostname)
+ pl_iface = slice_desc.create("NodeInterface")
+ #pl_iface.set_attribute_value("label", "iface_%s" % node)
+ pl_iface.connector("inet").connect(pl_inet.connector("devs"))
+ pl_node.connector("devs").connect(pl_iface.connector("node"))
+ return pl_node
+
+def create_tunnel(node, peer, pl_nodes, slice_desc, subnet):
+ pl_node = pl_nodes[node]
+ pl_peer = pl_nodes[peer]
+
+ pl_tun = slice_desc.create("TunInterface")
+ pl_tun.set_attribute_value("label", "tun_%s%s" % (node, peer))
+ pl_node.connector("devs").connect(pl_tun.connector("node"))
+
+ pl_tunpeer = slice_desc.create("TunInterface")
+ pl_tunpeer.set_attribute_value("label", "tun_%s%s" % (peer, node))
+ pl_peer.connector("devs").connect(pl_tunpeer.connector("node"))
+
+ pl_tun.connector("udp").connect(pl_tunpeer.connector("udp"))
+
+ iterhosts = subnet.iterhosts()
+ addr = iterhosts.next()
+ ip = pl_tun.add_address()
+ ip.set_attribute_value("Address", addr.exploded)
+ ip.set_attribute_value("NetPrefix", subnet.prefixlen)
+
+ peeraddr = iterhosts.next()
+ peerip = pl_tunpeer.add_address()
+ peerip.set_attribute_value("Address", peeraddr.exploded)
+ peerip.set_attribute_value("NetPrefix", subnet.prefixlen)
+
+def create_ccnd(pl_node, slice_desc):
+ pl_app = slice_desc.create("CCNxDaemon")
+ # Add multicast ccn route
+ pl_app.set_attribute_value("ccnroutes", "udp 224.0.0.204 2869")
+ pl_app.enable_trace("stdout")
+ pl_app.enable_trace("stderr")
+ pl_app.connector("node").connect(pl_node.connector("apps"))
+
+def create_ccnpoke(pl_node, slice_desc):
+ pl_app = slice_desc.create("Application")
+ path_to_video = os.path.join(os.path.dirname(os.path.abspath(__file__)),
+ "big_buck_bunny_240p_mpeg4_lq.ts")
+ pl_app.set_attribute_value("stdin", path_to_video)
+ #pl_app.set_attribute_value("command", "ccnsendchunks ccnx:/VIDEO")
+ pl_app.set_attribute_value("command", "ccnpoke ccnx:/VIDEO")
+ pl_app.enable_trace("stdout")
+ pl_app.enable_trace("stderr")
+ pl_app.connector("node").connect(pl_node.connector("apps"))
+
+def create_local_ccncatchunks(hostname, ccn_bin):
+ path = os.path.join(os.getcwd(), "ccncatchunks.sh")
+ exec_ = ( "export PATH=$PATH:%(path_to_ccn_bin)s ; "
+ "ccndstart ; "
+ "ccndc add ccnx:/ udp %(hostname)s ; "
+ "ccncatchunks2 ccnx:/VIDEO | vlc -"
+ ) % dict(
+ hostname = hostname,
+ path_to_ccn_bin = ccn_bin,
+ )
+
+ f = open(path, "w")
+ f.write(exec_)
+ f.close()
+
+def create_ed(hostnames, vsys_vnet, slicename, plc_host, pl_user, pl_pwd, pl_ssh_key,
+ port_base, root_dir, ccn_bin):
+
+ # Create the experiment description object
+ exp_desc = ExperimentDescription()
+
+ # Create the slice description object
+ slice_desc = create_slice_desc(slicename, plc_host, pl_user, pl_pwd, pl_ssh_key,
+ port_base, root_dir, exp_desc)
+
+ # Create the Internet box object
+ pl_inet = slice_desc.create("Internet")
+
+ # Create the Node boxes
+ pl_nodes = dict()
+ for hostname in hostnames:
+ pl_node = create_node(hostname, pl_inet, slice_desc)
+ pl_nodes[hostname] = pl_node
+
+ # Get the base network segment (slice vsys_vnet) to assign all the IP addresses
+ # to the virtual interfaces
+ base = ipaddr.IPNetwork(vsys_vnet)
+
+ # Calculate the number of virtual networks required to connect all the nodes
+ # with all other nodes as the binomial coeficient C(n, 2), with n = #nodes
+ n = len(hostnames)
+ c = math.factorial(n) / (2 * math.factorial(n-2))
+
+ # Validate that we can get 'c' /30 subnetworks
+ if c > math.pow(2, (30 - base.prefixlen)):
+ raise RuntimeError("Insufficient address segment %s for experiment", vsys_vnet)
+
+ # Create the subnetwors iterator
+ iter_sub = base.iter_subnets(new_prefix=30)
+
+ # Create tunnels between nodes
+ for i, node in enumerate(hostnames):
+ peers = hostnames[i+1:]
+ for peer in peers:
+ subnet = iter_sub.next()
+ create_tunnel(node, peer, pl_nodes, slice_desc, subnet)
+
+ # Create ccnd daemons in all nodes
+ for pl_node in pl_nodes.values():
+ create_ccnd(pl_node, slice_desc)
+
+ # Create a ccnpoke in a chosen node to publish some content
+ hostname = pl_nodes.keys()[0]
+ pl_node = pl_nodes[hostname]
+ create_ccnpoke(pl_node, slice_desc)
+
+ create_local_ccncatchunks(hostname, ccn_bin)
+
+ return exp_desc
+
+def run(hostnames, vsys_vnet, slicename, plc_host, pl_user, pl_pwd, pl_ssh_key,
+ port_base, root_dir, ccn_bin):
+
+ exp_desc = create_ed(hostnames, vsys_vnet, slicename, plc_host, pl_user,
+ pl_pwd, pl_ssh_key, port_base, root_dir, ccn_bin)
+
+ xml = exp_desc.to_xml()
+ controller = ExperimentController(xml, root_dir)
+ controller.start()
+ while not TERMINATE:
+ time.sleep(0.5)
+
+ controller.stop()
+ controller.shutdown()
+
+
+if __name__ == '__main__':
+ root_dir = tempfile.mkdtemp()
+ slicename = os.environ.get("PL_SLICE")
+ pl_host = os.environ.get("PL_HOST", "www.planet-lab.eu")
+ port_base = 2000 + (os.getpid() % 1000) * 13
+ pl_ssh_key = os.environ.get(
+ "PL_SSH_KEY",
+ "%s/.ssh/id_rsa_planetlab" % (os.environ['HOME'],) )
+ pl_user = os.environ.get('PL_USER')
+ pl_pwd = os.environ.get('PL_PASS')
+ vsys_vnet = os.environ.get('PL_VSYS_NET')
+ pl_ccn_bin = os.environ.get('PL_CCN_BIN')
+ pl_hostnames = os.environ.get('PL_HOSTNAMES')
+ default_hostnames = ['openlab02.pl.sophia.inria.fr',
+ 'ple4.ipv6.lip6.fr',
+ 'planetlab2.di.unito.it',
+ 'merkur.planetlab.haw-hamburg.de',
+ #'planetlab1.cs.uit.no',
+ #'planetlab3.cs.st-andrews.ac.uk',
+ #'planetlab2.cs.uoi.gr',
+ #'planetlab3.xeno.cl.cam.ac.uk',
+ #'planet2.inf.tu-dresden.de',
+ #'planetlab2.csg.uzh.ch',
+ #'planetlab2.upm.ro',
+ #'planetlab-um00.di.uminho.pt',
+ #'planetlabpc2.upf.edu',
+ #'planet2.elte.hu',
+ 'planetlab2.esprit-tn.com' ]
+
+
+ usage = "usage: %prog -s <pl_slice> -H <pl_host> -b <ccn_bin> -k <ssh_key> -u <pl_user> -p <pl_password> -v <vsys_vnet> -N <host_names> "
+ parser = OptionParser(usage=usage)
+ parser.add_option("-s", "--slicename", dest="slicename", help="PlanetLab slicename", default=slicename, type="str")
+ parser.add_option("-H", "--pl-host", dest="pl_host", help="PlanetLab site (e.g. www.planet-lab.eu)", default=pl_host, type="str")
+ parser.add_option("-b", "--ccn-bin", dest="ccn_bin", help="Path to ccnx bin directory", default=pl_ccn_bin, type="str")
+ parser.add_option("-k", "--ssh-key", dest="pl_ssh_key", help="Path to private ssh key used for PlanetLab authentication", default=pl_ssh_key, type="str")
+ parser.add_option("-u", "--pl-user", dest="pl_user", help="PlanetLab account user (i.e. Registration email address)", default=pl_user, type="str")
+ parser.add_option("-p", "--pl-pwd", dest="pl_pwd", help="PlanetLab account password", default=pl_pwd, type="str")
+ parser.add_option("-v", "--vsys-vnet", dest="vsys_vnet", help="Value of the vsys_vnet tag addigned to your slice. (e.g. 192.168.3.0/16)", default=vsys_vnet, type="str")
+ parser.add_option("-N", "--host-names", dest="hostnames", help="Comma separated list of PlanetLab hostnames to use", default=pl_hostnames, type="str")
+ (options, args) = parser.parse_args()
+
+ hostnames = map(string.strip, options.hostnames.split(",")) if options.hostnames else default_hostnames
+ vsys_vnet = options.vsys_vnet
+ slicename = options.slicename
+ pl_host = options.pl_host
+ pl_user= options.pl_user
+ pl_pwd = options.pl_pwd
+ pl_ssh_key = options.pl_ssh_key
+ ccn_bin = options.ccn_bin
+
+ run(hostnames, vsys_vnet, slicename, pl_host, pl_user, pl_pwd, pl_ssh_key,
+ port_base, root_dir, ccn_bin)
+