def flush_address_cache(self):
links = self.get_all_links()
peers = {}
for link in links:
peers['%d.%d' % (link.src.dpid, link.src.port_no)] = link.dst
for router_id in self.address_cache:
ips = {}
for port_no in self.address_cache[router_id]:
nw, mask, ip = self.do_set_port_address(
self.address_cache[router_id][port_no],
router_id,
port_no)
peer_ip = None
if ENABLE_BFD:
try:
peer = peers['%d.%d' % (router_id, port_no)]
peer_ip = self.address_cache[peer.dpid][peer.port_no]
dummy, dummy, peer_ip = nw_addr_aton(peer_ip)
except KeyError:
pass
ips[port_no] = [nw, mask, ip, peer_ip]
self.local_apps[router_id].batch_set_port_address(ips)
for port_no in ips:
self.send_event_to_observers(EventAddressAdd(Address(
router_id, port_no, ips[port_no][2], ips[port_no][1])))
self.address_cache = {}
def flush_address_cache(self):
links = self.get_all_links()
peers = {}
for link in links:
peers['%d.%d' % (link.src.dpid, link.src.port_no)] = link.dst
for router_id in self.address_cache:
ips = {}
for port_no in self.address_cache[router_id]:
nw, mask, ip = self.do_set_port_address(
self.address_cache[router_id][port_no], router_id, port_no)
peer_ip = None
if ENABLE_BFD:
try:
peer = peers['%d.%d' % (router_id, port_no)]
peer_ip = self.address_cache[peer.dpid][peer.port_no]
dummy, dummy, peer_ip = nw_addr_aton(peer_ip)
except KeyError:
pass
ips[port_no] = [nw, mask, ip, peer_ip]
self.local_apps[router_id].batch_set_port_address(ips)
for port_no in ips:
self.send_event_to_observers(
EventAddressAdd(
Address(router_id, port_no, ips[port_no][2],
ips[port_no][1])))
self.address_cache = {}
def do_set_port_address(self, address, router_id, port_no):
nw, mask, ip = nw_addr_aton(address)
# Check address overlap
for port in self.ports[router_id].values():
if port.ip is None:
continue
if (port.nw == ipv4_apply_mask(ip, port.netmask)
or nw == ipv4_apply_mask(port.ip, mask)):
self._logger.error('IP %s overlaps with %s/%d of %d.%d.',
address, port.ip, port.netmask,
port.port.dpid, port.port.port_no)
return None
self._logger.info('Setting address of %d.%d', router_id, port_no)
self.ports[router_id][port_no].set_ip(ip, mask, nw)
return nw, mask, ip
def add_entry(self, dst_ip, in_port, out_group):
dst, netmask, ip_str = nw_addr_aton(dst_ip)
key = '%d:%s/%d' % (in_port, dst, netmask)
with self._lock:
if key in self:
self._logger.error('Route %s overlapped.', key)
return
routing_data = _Route(route_id=self.route_id,
dst_ip=dst,
netmask=netmask,
in_port=in_port,
out_group=out_group)
with self._lock:
self[key] = routing_data
self.route_id += 1
return routing_data
def add_entry(self, dst_ip, in_port, out_group):
dst, netmask, ip_str = nw_addr_aton(dst_ip)
key = '%d:%s/%d' % (in_port, dst, netmask)
with self._lock:
if key in self:
self._logger.error('Route %s overlapped.', key)
return
routing_data = _Route(route_id=self.route_id,
dst_ip=dst,
netmask=netmask,
in_port=in_port,
out_group=out_group)
with self._lock:
self[key] = routing_data
self.route_id += 1
return routing_data
def do_set_port_address(self, address, router_id, port_no):
nw, mask, ip = nw_addr_aton(address)
# Check address overlap
for port in self.ports[router_id].values():
if port.ip is None:
continue
if (port.nw == ipv4_apply_mask(ip, port.netmask)
or nw == ipv4_apply_mask(port.ip, mask)):
self._logger.error('IP %s overlaps with %s/%d of %d.%d.',
address,
port.ip,
port.netmask,
port.port.dpid,
port.port.port_no)
return None
self._logger.info('Setting address of %d.%d', router_id, port_no)
self.ports[router_id][port_no].set_ip(ip, mask, nw)
return nw, mask, ip
def add(self, router, dst_ip, gateway_ip, src_mac, gateway_mac, out_port,
in_port=None, out_group=None):
dst, netmask, dummy = nw_addr_aton(dst_ip)
gateway_ip = ip_addr_aton(gateway_ip)
ip_str = ip_addr_ntoa(dst)
key = '%s/%d' % (ip_str, netmask)
overlap_route = None
if key in self:
overlap_route = self[key].route_id
if overlap_route is not None:
self._logger.info('Destination overlaps route id: %d',
overlap_route)
return
routing_data = BaseRoute(self.route_id, dst, netmask, gateway_ip,
src_mac, gateway_mac, out_port)
self[key] = routing_data
self.route_id += 1
router.install_routing_entry(routing_data)
return routing_data
def add(self,
router,
dst_ip,
gateway_ip,
src_mac,
gateway_mac,
out_port,
in_port=None,
out_group=None):
assert in_port is not None
dst, netmask, dummy = nw_addr_aton(dst_ip)
if gateway_ip is not None:
gateway_ip = ip_addr_aton(gateway_ip)
ip_str = ip_addr_ntoa(dst)
key = _RoutingTable._get_route_key(ip_str, netmask, in_port)
overlap_route = None
if key in self:
overlap_route = self[key].route_id
if overlap_route is not None:
self._logger.info('Destination overlaps route id: %d',
overlap_route)
return
routing_data = BaseRoute(self.route_id,
dst,
netmask,
gateway_ip,
src_mac,
gateway_mac,
out_port,
in_port=in_port,
out_group=out_group)
self[key] = routing_data
self.route_id += 1
router.install_routing_entry(routing_data)
def set_port_address(self, ip_str, port_no):
nw, mask, ip = nw_addr_aton(ip_str)
# Check overlaps
mask_b = mask_ntob(mask)
for port in self.ports.values():
if port.ip is None:
continue
port_mask = mask_ntob(port.netmask)
if (port.nw == ipv4_apply_mask(ip, port.netmask)
or nw == ipv4_apply_mask(port.ip, mask)):
return None
if port_no not in self.ports.keys():
return None
self.ports[port_no].set_ip(nw, mask, ip)
self._logger.info('Setting IP %s/%d of %s', ip, mask, nw)
priority, dummy = get_priority(PRIORITY_MAC_LEARNING)
self.ofctl.set_packet_in_flow(0, priority, eth_type=ether.ETH_TYPE_IP,
dst_ip=nw, dst_mask=mask)
self._logger.info('Set MAC learning for %s', ip)
# IP handling
priority, dummy = get_priority(PRIORITY_IP_HANDLING)
self.ofctl.set_packet_in_flow(0, priority, eth_type=ether.ETH_TYPE_IP,
dst_ip=ip)
self._logger.info('Set IP handling for %s', ip)
# L2 switching
out_port = self.ofctl.dp.ofproto.OFPP_NORMAL
priority, dummy = get_priority(PRIORITY_L2_SWITCHING)
self.ofctl.set_routing_flow(
0, priority, out_port,
nw_src=nw, src_mask=mask,
nw_dst=nw, dst_mask=mask)
self._logger.info('Set L2 switching (normal) flow [cookie=0x%x]',
0)
# Send GARP
self.send_arp_request(ip, ip)
return {'ip': ip, 'mask': mask, 'nw': nw}