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 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/>.
20 from nepi.execution.resource import ResourceManager, clsinit
21 from nepi.execution.attribute import Attribute, Flags
23 from nepi.resources.omf.omf_api import OMFAPIFactory
30 class OMFNode(ResourceManager):
32 .. class:: Class Args :
34 :param ec: The Experiment controller
35 :type ec: ExperimentController
36 :param guid: guid of the RM
38 :param creds: Credentials to communicate with the rm (XmppClient for OMF)
43 This class is used only by the Experiment Controller through the Resource Factory
47 _authorized_connections = ["OMFApplication" , "OMFWifiInterface"]
51 def _register_attributes(cls):
52 """Register the attributes of an OMF Node
55 hostname = Attribute("hostname", "Hostname of the machine")
56 cpu = Attribute("cpu", "CPU of the node")
57 ram = Attribute("ram", "RAM of the node")
58 xmppSlice = Attribute("xmppSlice","Name of the slice",
59 flags = Flags.Credential)
60 xmppHost = Attribute("xmppHost", "Xmpp Server",
61 flags = Flags.Credential)
62 xmppPort = Attribute("xmppPort", "Xmpp Port",
63 flags = Flags.Credential)
64 xmppPassword = Attribute("xmppPassword", "Xmpp Port",
65 flags = Flags.Credential)
67 host = Attribute("host", "Hostname of the machine",
69 gateway = Attribute("gateway", "Gateway",
71 granularity = Attribute("granularity", "Granularity of the reservation time",
73 hardware_type = Attribute("hardware_type", "Hardware type of the machine",
76 cls._register_attribute(hostname)
77 cls._register_attribute(ram)
78 cls._register_attribute(cpu)
79 cls._register_attribute(xmppSlice)
80 cls._register_attribute(xmppHost)
81 cls._register_attribute(xmppPort)
82 cls._register_attribute(xmppPassword)
84 cls._register_attribute(host)
85 cls._register_attribute(gateway)
86 cls._register_attribute(granularity)
87 cls._register_attribute(hardware_type)
89 # XXX: We don't necessary need to have the credentials at the
90 # moment we create the RM
91 def __init__(self, ec, guid):
93 :param ec: The Experiment controller
94 :type ec: ExperimentController
95 :param guid: guid of the RM
97 :param creds: Credentials to communicate with the rm (XmppClient for OMF)
101 super(OMFNode, self).__init__(ec, guid)
105 self._logger = logging.getLogger("nepi.omf.omfNode ")
108 self._logger.setLevel(nepi.LOGLEVEL)
110 def _validate_connection(self, guid):
111 """Check if the connection is available.
113 :param guid: Guid of the current RM
118 rm = self.ec.get_resource(guid)
119 if rm.rtype() in self._authorized_connections:
120 self._logger.debug("Connection between %s %s and %s %s accepted" %
121 (self.rtype(), self._guid, rm.rtype(), guid))
123 self._logger.debug("Connection between %s %s and %s %s refused" %
124 (self.rtype(), self._guid, rm.rtype(), guid))
127 def deploy_action(self):
131 self._omf_api = OMFAPIFactory.get_api(self.get('xmppSlice'),
132 self.get('xmppHost'), self.get('xmppPort'), self.get('xmppPassword'))
133 self._omf_api.enroll_host(self.get('hostname'))
135 super(OMFNode, self).deploy_action()
138 """ Discover the availables nodes
144 """ Provision some availables nodes
150 """Send Xmpp Message Using OMF protocol to enroll the node into the experiment
153 super(OMFNode, self).start()
157 """Send Xmpp Message Using OMF protocol to disconnect the node
160 super(OMFNode, self).stop()
163 """Clean the RM at the end of the experiment
166 self._omf_api.release(self.get('hostname'))
167 OMFAPIFactory.release_api(self.get('xmppSlice'),
168 self.get('xmppHost'), self.get('xmppPort'), self.get('xmppPassword'))
172 #routes = self.tc._add_route.get(self.guid, [])
173 #iface_guids = self.tc.get_connected(self.guid, "devs", "node")
176 (destination, netprefix, nexthop, metric, device) = route
177 netmask = ipaddr2.ipv4_mask2dot(netprefix)
179 # Validate that the interface is associated to the node
180 for iface_guid in iface_guids:
181 iface = self.tc.elements.get(iface_guid)
182 if iface.devname == device:
183 self._omf_api.execute(self.get('hostname'),
184 "Id#%s" % str(random.getrandbits(128)),
185 "add -net %s netmask %s dev %s" % (destination, netmask, iface.devname),
186 "/sbin/route", # path