def _control_plane_arp_handler(self, pkt_meta):
ofmsgs = []
pkt_meta.reparse_ip(ether.ETH_TYPE_ARP)
arp_pkt = pkt_meta.pkt.get_protocol(arp.arp)
if arp_pkt is None:
return ofmsgs
src_ip = ipaddress.IPv4Address(btos(arp_pkt.src_ip))
dst_ip = ipaddress.IPv4Address(btos(arp_pkt.dst_ip))
vlan = pkt_meta.vlan
if vlan.from_connected_to_vip(src_ip, dst_ip):
opcode = arp_pkt.opcode
port = pkt_meta.port
eth_src = pkt_meta.eth_src
vid = self._vlan_vid(vlan, port)
if opcode == arp.ARP_REQUEST:
ofmsgs.extend(
self._add_host_fib_route(vlan, src_ip))
ofmsgs.extend(self._update_nexthop(
vlan, port, eth_src, src_ip))
arp_reply = valve_packet.arp_reply(
vid, vlan.faucet_mac, eth_src, dst_ip, src_ip)
ofmsgs.append(
valve_of.packetout(port.number, arp_reply.data))
self.logger.info(
'Responded to ARP request for %s from %s (%s) on VLAN %u' % (
dst_ip, src_ip, eth_src, vlan.vid))
elif (opcode == arp.ARP_REPLY and
pkt_meta.eth_dst == vlan.faucet_mac):
ofmsgs.extend(
self._update_nexthop(vlan, port, eth_src, src_ip))
self.logger.info(
'ARP response %s (%s) on VLAN %u' % (
src_ip, eth_src, vlan.vid))
return ofmsgs
def _control_plane_arp_handler(self, pkt_meta, arp_pkt):
src_ip = ipaddr.IPv4Address(arp_pkt.src_ip)
dst_ip = ipaddr.IPv4Address(arp_pkt.dst_ip)
vlan = pkt_meta.vlan
opcode = arp_pkt.opcode
ofmsgs = []
if vlan.from_connected_to_vip(src_ip, dst_ip):
in_port = pkt_meta.port.number
vid = self._vlan_vid(vlan, in_port)
eth_src = pkt_meta.eth_src
if opcode == arp.ARP_REQUEST:
arp_reply = valve_packet.arp_reply(
self.faucet_mac, eth_src, vid, dst_ip, src_ip)
ofmsgs.extend(
self._add_host_fib_route(vlan, src_ip))
ofmsgs.append(
valve_of.packetout(in_port, arp_reply.data))
self.logger.info(
'Responded to ARP request for %s from %s (%s)',
dst_ip, src_ip, eth_src)
elif (opcode == arp.ARP_REPLY and
pkt_meta.eth_dst == self.faucet_mac):
ofmsgs.extend(
self._update_nexthop(vlan, in_port, eth_src, src_ip))
self.logger.info(
'ARP response %s (%s)', src_ip, eth_src)
return ofmsgs
def _control_plane_arp_handler(self, pkt_meta, arp_pkt):
src_ip = ipaddress.IPv4Address(btos(arp_pkt.src_ip))
dst_ip = ipaddress.IPv4Address(btos(arp_pkt.dst_ip))
vlan = pkt_meta.vlan
opcode = arp_pkt.opcode
ofmsgs = []
if vlan.from_connected_to_vip(src_ip, dst_ip):
port = pkt_meta.port
eth_src = pkt_meta.eth_src
if opcode == arp.ARP_REQUEST:
ofmsgs.extend(self._add_host_fib_route(vlan, src_ip))
ofmsgs.extend(self._update_nexthop(vlan, port, eth_src,
src_ip))
vid = self._vlan_vid(vlan, port)
arp_reply = valve_packet.arp_reply(vid, self.faucet_mac,
eth_src, dst_ip, src_ip)
ofmsgs.append(valve_of.packetout(port.number, arp_reply.data))
self.logger.info(
'Responded to ARP request for %s from %s (%s)', dst_ip,
src_ip, eth_src)
elif (opcode == arp.ARP_REPLY
and pkt_meta.eth_dst == self.faucet_mac):
ofmsgs.extend(self._update_nexthop(vlan, port, eth_src,
src_ip))
self.logger.info('ARP response %s (%s)', src_ip, eth_src)
return ofmsgs
def control_plane_arp_handler(self, in_port, vlan, eth_src, eth_dst,
arp_pkt):
ofmsgs = []
opcode = arp_pkt.opcode
src_ip = ipaddr.IPv4Address(arp_pkt.src_ip)
dst_ip = ipaddr.IPv4Address(arp_pkt.dst_ip)
if (opcode == arp.ARP_REQUEST and vlan.ip_in_controller_subnet(src_ip)
and vlan.ip_in_controller_subnet(dst_ip)):
vid = self._vlan_vid(vlan, in_port)
arp_reply = valve_packet.arp_reply(self.faucet_mac, eth_src, vid,
dst_ip, src_ip)
ofmsgs.append(valve_of.packetout(in_port, arp_reply.data))
ofmsgs.extend(self._add_host_fib_route(vlan, src_ip))
self.logger.info('Responded to ARP request for %s from %s', src_ip,
dst_ip)
elif (opcode == arp.ARP_REPLY and eth_dst == self.faucet_mac
and vlan.ip_in_controller_subnet(src_ip)
and vlan.ip_in_controller_subnet(dst_ip)):
self.logger.info('ARP response %s for %s', eth_src, src_ip)
ofmsgs.extend(self._update_nexthop(vlan, eth_src, src_ip))
return ofmsgs
def control_plane_arp_handler(self, in_port, vlan, eth_src, eth_dst, arp_pkt):
ofmsgs = []
opcode = arp_pkt.opcode
src_ip = ipaddr.IPv4Address(arp_pkt.src_ip)
dst_ip = ipaddr.IPv4Address(arp_pkt.dst_ip)
if (opcode == arp.ARP_REQUEST and
vlan.ip_in_controller_subnet(src_ip) and
vlan.ip_in_controller_subnet(dst_ip)):
vid = self._vlan_vid(vlan, in_port)
arp_reply = valve_packet.arp_reply(
self.faucet_mac, eth_src, vid, dst_ip, src_ip)
ofmsgs.append(valve_of.packetout(in_port, arp_reply.data))
self.logger.info(
'Responded to ARP request for %s from %s', src_ip, dst_ip)
elif (opcode == arp.ARP_REPLY and
eth_dst == self.faucet_mac and
vlan.ip_in_controller_subnet(src_ip) and
vlan.ip_in_controller_subnet(dst_ip)):
self.logger.info('ARP response %s for %s', eth_src, src_ip)
ofmsgs.extend(self._update_nexthop(vlan, eth_src, src_ip))
return ofmsgs