def __new_extended_communities (self,data): communities = ECommunities() while data: community = data[:8] data = data[8:] if data and len(data) < 8: raise Notify(3,1,'could not decode extended community %s' % str([hex(ord(_)) for _ in data])) communities.add(ECommunity.unpackFrom(community)) return communities
def _genExtendedCommunities(self):
ecommunities = ECommunities(copy(self.exportRTs))
for encap in self.dataplaneDriver.supportedEncaps():
if not isinstance(encap, Encapsulation):
raise Exception("dataplaneDriver.supportedEncaps() should "
"return a list of Encapsulation objects")
if encap != Encapsulation(Encapsulation.DEFAULT):
ecommunities.add(encap)
# FIXME: si DEFAULT + xxx => adv MPLS
return ecommunities
def _genExtendedCommunities(self):
ecommunities = ECommunities(copy(self.exportRTs))
for encap in self.dataplaneDriver.supportedEncaps():
if not isinstance(encap, Encapsulation):
raise Exception("dataplaneDriver.supportedEncaps() should "
"return a list of Encapsulation objects")
if encap != Encapsulation(Encapsulation.DEFAULT):
ecommunities.add(encap)
# FIXME: si DEFAULT + xxx => adv MPLS
return ecommunities
def __new_extended_communities(self, data):
communities = ECommunities()
while data:
community = data[:8]
data = data[8:]
if data and len(data) < 8:
raise Notify(
3, 1, 'could not decode extended community %s' %
str([hex(ord(_)) for _ in data]))
communities.add(ECommunity.unpackFrom(community))
return communities
def _route_extended_community (self,scope,tokens): extended_communities = ECommunities() extended_community = tokens.pop(0) try: if extended_community == '[': while True: try: extended_community = tokens.pop(0) except IndexError: self._error = self._str_route_error if self.debug: raise return False if extended_community == ']': break extended_communities.add(self._parse_extended_community(scope,extended_community)) else: extended_communities.add(self._parse_extended_community(scope,extended_community)) except ValueError: self._error = self._str_route_error if self.debug: raise return False scope[-1]['routes'][-1].attributes.add(extended_communities) return True
def _routeForReAdvertisement(self, prefix, label):
route = self._routeFrom(prefix, label, self._getRDFromLabel(label))
nh = Inet(
1,
socket.inet_pton(socket.AF_INET,
self.dataplane.driver.getLocalAddress()))
route.attributes.add(NextHop(nh))
route.attributes.add(ECommunities(self.readvertiseToRTs))
routeEntry = self._newRouteEntry(self.afi, self.safi,
self.readvertiseToRTs, route.nlri,
route.attributes)
return routeEntry
def __init__(self, afi=AFI.ipv4, safi=SAFI.flow_ipv4):
self.attributes = Attributes()
self.nlri = _FlowNLRI(afi, safi)
self.attributes[AttributeID.EXTENDED_COMMUNITY] = ECommunities()