def push_host_vlan_tagged_packets_drop_rules(self, sw,
host_vlan_tagged_drop_table):
for h_id in self.network_graph.host_ids:
# Get concerned only with hosts that are directly connected to this sw
h_obj = self.network_graph.get_node_object(h_id)
if h_obj.sw.node_id != sw:
continue
# Get a vanilla flow
flow = self.create_base_flow(sw, host_vlan_tagged_drop_table, 100)
action_list = []
if self.network_graph.controller == "ryu":
flow["match"]["in_port"] = h_obj.switch_port.port_number
flow["match"]["vlan_vid"] = self.network_graph.graph.node[sw][
"sw"].synthesis_tag
elif self.network_graph.controller == "onos":
flow_match = Match(is_wildcard=True)
flow_match["ethernet_type"] = 0x0800
flow_match["in_port"] = int(h_obj.switch_port.port_number)
flow_match["vlan_id"] = self.network_graph.graph.node[sw][
"sw"].synthesis_tag
flow["selector"]["criteria"] = flow_match.generate_match_raw(
self.network_graph.controller,
flow["selector"]["criteria"])
# Make and push the flow
self.populate_flow_action_instruction(flow, action_list, True)
self.push_flow(sw, flow)
def push_loop_preventing_drop_rules(self, sw, table_number):
for h_id in self.network_graph.host_ids:
# Get concerned only with hosts that are directly connected to this sw
h_obj = self.network_graph.get_node_object(h_id)
if h_obj.sw.node_id != sw:
continue
# Get a vanilla flow
flow = self.create_base_flow(sw, table_number, 100)
action_list = []
# Compile match with in_port and destination mac address
if self.network_graph.controller == "ryu":
flow["match"]["in_port"] = h_obj.switch_port.port_number
flow["match"]["eth_dst"] = h_obj.mac_addr
elif self.network_graph.controller == "onos":
flow_match = Match(is_wildcard=True)
flow_match["ethernet_type"] = 0x0800
mac_int = int(h_obj.mac_addr.replace(":", ""), 16)
flow_match["ethernet_destination"] = int(mac_int)
flow_match["in_port"] = int(h_obj.switch_port.port_number)
flow["selector"]["criteria"] = flow_match.generate_match_raw(
self.network_graph.controller,
flow["selector"]["criteria"])
# Make and push the flow
self.populate_flow_action_instruction(flow, action_list, True)
self.push_flow(sw, flow)
