def __init__(self, *args, **kwargs):
super(Manager, self).__init__(*args, **kwargs)
# Start the REST web api
wsgi = kwargs['wsgi']
self.repo = DataRepo()
cntlr_data = {'manager': self, 'repo': self.repo}
wsgi.register(web_api.RouteController, cntlr_data)
print "hey bro!"
class Manager(app_manager.RyuApp):
OFP_VERSIONS = [ofproto_v1_0.OFP_VERSION]
_CONTEXTS = {'wsgi': WSGIApplication}
_data_paths = {}
def __init__(self, *args, **kwargs):
super(Manager, self).__init__(*args, **kwargs)
# Start the REST web api
wsgi = kwargs['wsgi']
self.repo = DataRepo()
cntlr_data = {'manager': self, 'repo': self.repo}
wsgi.register(web_api.RouteController, cntlr_data)
print "hey bro!"
@set_ev_cls(ofp_event.EventOFPStateChange, MAIN_DISPATCHER)
def new_connection(self, ev):
dp = ev.datapath
if dp.id not in self._data_paths:
self._data_paths[dp.id] = dp
self._enable_controller_to_set_flow_table_id(dp)
LOG.info('Bridge connection established: |datapath id: %s|' % dp.id)
@set_ev_cls(ofp_event.EventOFPPacketIn, MAIN_DISPATCHER)
def handle_packet(self, ev):
msg = ev.msg
dp = msg.datapath
dpid = dp.id
dp_info = self._data_paths[dp.id]
pkt = packet.Packet(msg.data)
if dp_info is None:
LOG.error(
'Unexpected packet from an unknown datapath. '
'Datapath id: %s, Packet: %s' % dpid, pkt)
ip = pkt.get_protocol(ipv4.ipv4)
if ip is None:
LOG.debug('Non layer 3 message received, ignoring. '
'Packet: %s' % pkt)
return
if ip.dst in self.repo.get_public_ips():
route = self.repo.get_route(ip.dst)
LOG.info('Recieved packet for ip address %s. '
'Attempting to build the flows' % route['public_ip'])
flows.build_all(dp_info, route)
else:
LOG.info('Unknown ip address %s: blocking temporarily.' % ip.dst)
def create_route(self, route):
self.repo.set_route(route)
for (dp_id, dp) in self._data_paths.iteritems():
flows.build_all(dp, route)
@staticmethod
def _enable_controller_to_set_flow_table_id(dp):
"""Sends the command to the bridge to allow the table id to be set for
the flow. By default, for OpenFlow v1.0 with Nicira Extensions, the
bridges do not allow the table to be set. This flag/feature needs to
be turned on explicitly.
:param dp: Datapath object of the target bridge
"""
parser = dp.ofproto_parser
msg = parser.NXTFlowModTableId(dp, 1)
dp.send_msg(msg)