2 # NEPI, a framework to manage network experiments
3 # Copyright (C) 2013 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 version 2 as
7 # published by the Free Software Foundation;
9 # This program is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 # GNU General Public License for more details.
14 # You should have received a copy of the GNU General Public License
15 # along with this program. If not, see <http://www.gnu.org/licenses/>.
17 # Author: Alina Quereilhac <alina.quereilhac@inria.fr>
23 from optparse import OptionParser
28 usage = ("usage: %prog -u <slicename> -N <vif-name> -t <vif-type> "
29 "-D <delete> -S <socket-name>")
31 parser = OptionParser(usage = usage)
33 parser.add_option("-u", "--slicename", dest="slicename",
34 help = "The name of the PlanetLab slice ",
37 parser.add_option("-N", "--vif-name", dest="vif_name",
38 help = "The name of the virtual interface, or a "
39 "unique numeric identifier to name the interface "
40 "if GRE mode is used.",
43 parser.add_option("-t", "--vif-type", dest="vif_type",
44 help = "Virtual interface type. Either IFF_TAP or IFF_TUN. "
45 "Defaults to IFF_TAP. ", type="str")
47 parser.add_option("-D", "--delete", dest="delete",
50 help="Removes virtual interface if GRE mode was used")
52 parser.add_option("-S", "--socket-name", dest="socket_name",
53 help = "Name for the unix socket used to interact with this process",
56 (options, args) = parser.parse_args()
58 vif_type = vsys.IFF_TAP
59 if options.vif_type and options.vif_type == "IFF_TUN":
60 vif_type = vsys.IFF_TUN
62 return (options.socket_name, options.vif_name, options.slicename,
63 vif_type, options.delete)
65 if __name__ == '__main__':
67 (socket_name, vif_name, slicename, vif_type, delete) = get_options()
69 # If a socket name is sent, send the STOP message and wait for a reply
71 sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
73 sock.connect(socket_name)
74 encoded = base64.b64encode(STOP_MSG)
75 sock.send("%s\n" % encoded)
76 reply = sock.recv(1024)
77 reply = base64.b64decode(reply)
80 print "Did not properly shutdown device"
81 # If a slicename is provided, use it to remove a GRE device
86 sliceid = pwd.getpwnam(slicename).pw_uid
88 if vif_type == vsys.IFF_TAP:
93 # if_name should be a unique numeric vif id
94 vif_name = "%s%s-%s" % (vif_prefix, sliceid, vif_name)
96 vsys.vif_down(vif_name, delete = True)
98 # Else, use the vsys interface to set the virtual interface down
100 vsys.vif_down(vif_name)