def setup_integration_br(self, integ_br):
self.int_br = OVSBridge(integ_br, self.root_helper)
self.int_br.remove_all_flows()
# switch all traffic using L2 learning
# TODO: Should this get replaced? would need to add
# existing flows from db, then could make this a
# lower priority flow decision
# self.int_br.add_flow(priority=1, actions="normal")
# TODO: from ryu these should probably go before add_flow or remove_flow
self.int_br = OVSBridge(integ_br, self.root_helper)
self.int_br.find_datapath_id()
self.int_br.set_controller(ofp_controller_addr)
class OVSFloodlightQuantumAgent(object):
def __init__(self, integ_br, root_helper):
self.root_helper = root_helper
#self.setup_integration_br(integ_br)
# add controller stuff
(ofp_controller_addr, ofp_rest_api_addr) = check_ofp_mode(db)
#self.nw_id_external = rest_nw_id.NW_ID_EXTERNAL
# TODO
#self.api = OFPClient(ofp_rest_api_addr)
# TODO May need to split out the ip from controller addr: "tcp:<ip>"
# What format is controller addr in?
self.api = FlClient(ofp_controller_addr)
self.setup_integration_br(integ_br, ofp_controller_addr)
def port_bound(self, port, vlan_id):
self.int_br.set_db_attribute("Port", port.port_name, "tag",
str(vlan_id))
self.int_br.delete_flows(match="in_port=%s" % port.ofport)
def port_unbound(self, port, still_exists):
if still_exists:
self.int_br.clear_db_attribute("Port", port.port_name, "tag")
def setup_integration_br(self, integ_br):
self.int_br = OVSBridge(integ_br, self.root_helper)
self.int_br.remove_all_flows()
# switch all traffic using L2 learning
# TODO: Should this get replaced? would need to add
# existing flows from db, then could make this a
# lower priority flow decision
# self.int_br.add_flow(priority=1, actions="normal")
# TODO: from ryu these should probably go before add_flow or remove_flow
self.int_br = OVSBridge(integ_br, self.root_helper)
self.int_br.find_datapath_id()
self.int_br.set_controller(ofp_controller_addr)
# ** Floodlight will already be setup as learning switch
# Go through each external port on the int_br and update it
# do I need to do the above?
#for uplink in self.int_br.get_external_ports():
# self._port_update(self.nw_id_external, uplink)
# TODO Not sure if still need port update or
# if this can be replaced, probably
# need some flavor of it to update all the
# old flows during switch init
def _port_update(self, network_id, uplink, db):
vlan_id = db.get_vlan(network_id)
# create a flow for each uplink port from the source port
self.int_br.add_flow(vlan_id, in_port, uplink)
# TODO : Need to setup loop to grab db entries and populate flows in the switch
def daemon_loop(self, db):
self.local_vlan_map = {}
old_local_bindings = {}
old_vif_ports = {}
while True:
all_bindings = {}
try:
ports = db.ports.all()
except:
ports = []
for port in ports:
all_bindings[port.interface_id] = port
vlan_bindings = {}
try:
vlan_binds = db.vlan_bindings.all()
except:
vlan_binds = []
for bind in vlan_binds:
vlan_bindings[bind.network_id] = bind.vlan_id
new_vif_ports = {}
new_local_bindings = {}
vif_ports = self.int_br.get_vif_ports()
for p in vif_ports:
new_vif_ports[p.vif_id] = p
if p.vif_id in all_bindings:
net_id = all_bindings[p.vif_id].network_id
# Add flows for each port using the uplinks
for uplink in self.int_br.get_external_ports():
vlan_id = db.get_vlan(net_id)
self.int_br.add_flow(vlan_id, p, uplink)
new_local_bindings[p.vif_id] = net_id
if p not in old_vif_ports:
# this is a new vif port, create a flow for it
for uplink in self.int_br.get_external_ports():
self.api.create_flows(self.datapath_id, vlan_bindings[net_id], p, uplink)
#else:
# no binding, put him on the 'dead vlan'
#self.int_br.set_db_attribute("Port", p.port_name, "tag",
# DEAD_VLAN_TAG)
#self.int_br.add_flow(priority=2,
# match="in_port=%s" % p.ofport, actions="drop")
old_b = old_local_bindings.get(p.vif_id, None)
new_b = new_local_bindings.get(p.vif_id, None)
if old_b != new_b:
if old_b is not None:
LOG.info("Removing binding to net-id = %s for %s"
% (old_b, str(p)))
self.port_unbound(p, True)
if p.vif_id in all_bindings:
all_bindings[p.vif_id].op_status = OP_STATUS_DOWN
if new_b is not None:
# If we don't have a binding we have to stick it on
# the dead vlan
net_id = all_bindings[p.vif_id].network_id
vlan_id = vlan_bindings.get(net_id, DEAD_VLAN_TAG)
self.port_bound(p, vlan_id)
if p.vif_id in all_bindings:
all_bindings[p.vif_id].op_status = OP_STATUS_UP
LOG.info("Adding binding to net-id = %s " \
"for %s on vlan %s" % (new_b, str(p), vlan_id))
for vif_id in old_vif_ports:
if vif_id not in new_vif_ports:
LOG.info("Port Disappeared: %s" % vif_id)
if vif_id in old_local_bindings:
old_b = old_local_bindings[vif_id]
self.port_unbound(old_vif_ports[vif_id], False)
if vif_id in all_bindings:
all_bindings[vif_id].op_status = OP_STATUS_DOWN
old_vif_ports = new_vif_ports
old_local_bindings = new_local_bindings
db.commit()
time.sleep(REFRESH_INTERVAL)
