def _updateRegisteredAddress(self):
if not self.connected(): return
level = self._promiscuousMode
listeningBlock = PlaygroundAddressBlock(*self._address.toParts())
for i in range(level):
listeningBlock.getParentBlock()
self._linkTx.changeRegisteredAddress(str(listeningBlock))
def getOutboundLinks(self, source, sourcePort, destination,
destinationPort):
outboundLinks = set([])
if not PlaygroundAddressBlock.IsValidAddressString(destination):
return outboundLinks
if not self._switch:
# there is no service in this location.
return outboundLinks
dstAddress = PlaygroundAddressBlock.FromString(destination)
dstPrefix = dstAddress[0]
# allow anyone connected to this router to receive messages
# for aother prefix
outboundLinks = self._switch.getOutboundLinks(source, sourcePort,
destination,
destinationPort)
# but, if the dstPrefix is not the local prefix, get nexthop as an
# additional link
if dstPrefix != self._prefix and self._WAN:
logger.debug(
"Received message for prefix {}. My prefix is {}. Routing".
format(dstPrefix, self._prefix))
nextHop = self._WAN.nextHop(self._prefix, dstPrefix)
logger.debug("Next hop is {}".format(nextHop))
if nextHop:
destination = "{}.0.0.0".format(nextHop)
logger.debug("Adding routing links {}".format(
self._switch.getOutboundLinks(source, 0, destination, 0)))
outboundLinks.update(
self._switch.getOutboundLinks(source, 0, destination, 0))
return outboundLinks
def getOutboundLinks(self, source, sourcePort, destination,
destinationPort):
outboundLinks = set([])
if not PlaygroundAddressBlock.IsValidAddressString(destination):
return outboundLinks
pAddress = PlaygroundAddressBlock.FromString(destination)
while pAddress:
outboundLinks.update(
self._addressToLinks.get(str(pAddress), set([])))
pAddress = pAddress.getParentBlock()
return outboundLinks
def getRoutingDevice(self, address):
for route in self._config:
if route == self.DEFAULT_ROUTE_KEY:
continue
routeAddressBlock = PlaygroundAddressBlock.FromString(route)
if routeAddressBlock.isParentBlock(address):
return self._config[route]
return self._config.get(self.DEFAULT_ROUTE_KEY, None)
def registerLink(self, address, protocol):
if not PlaygroundAddressBlock.IsValidAddressString(address):
# drop bad addresses silently.
return
self.unregisterLink(protocol)
if not address in self._addressToLinks:
self._addressToLinks[address] = set([protocol])
else:
self._addressToLinks[address].add(protocol)
self._linkToAddress[protocol] = address