def getNextHopByNetSegment(self, netSegment, nextHops):
print "dstSegment:{}".format(netSegment.strNormal())
prefixLength = netSegment.prefixlen()
ns = netSegment.int()
while prefixLength>0:
prefix = plugins.getPrefixByIpMask(ns, prefixLength)
bgp_list = self.mapPrefixBgp.get(prefix)
print "### prefix:{}".format(plugins.getIpById(prefix))
# if bgp_list:
# for bgp in bgp_list:
# print "### {}".format(bgp)
# if bgp_list:
# for bgp in bgp_list:
# nextHop = plugins.getNetSegmentByIpMask(bgp.nextHop)
# if nextHop in nextHops:
# return nextHop
if bgp_list:
bgp = reduce(self.bgpRouteSelect, bgp_list)
curPrefix = plugins.getPrefixByIpMask(bgp.nextHop, prefixLength)
if curPrefix==prefix:
return netSegment
print "@@@@@@@@@@ {}".format(bgp)
nextHop = plugins.getNetSegmentByIpMask(bgp.nextHop)
#nextHop = self.getRouterIdByNetSegment(bgp.nextHop)
return nextHop
# print "###prefix:{}, BGP:{}".format(prefixLength, bgp)
# if bgp and bgp.prefixLength==prefixLength:
# nextHop = plugins.getNetSegmentByIpMask(bgp.nextHop)
# if nextHop in nextHops:
# return nextHop
prefixLength -= 1
else:
return netSegment
def getAsbrLinkByNextHop(nextHop): for link in self.asbrLinks: p1 = plugins.getPrefixByIpMask(link.srcIp, link.mask) p2 = plugins.getPrefixByIpMask(nextHop, link.mask) if p1==p2: return link return
def getRouterIdByIpMask(self, ip, mask): prefixLength = plugins.getPrefixlenByIpMask(ip, mask) while prefixLength>0: prefix = plugins.getPrefixByIpMask(ip, prefixLength) routerId = self.getRouterIdByPrefix(prefix) if routerId: return routerId externalLsa = self.mapPrefixExternallsa.get(prefix) if externalLsa and plugins.getIdByIp(externalLsa.networkMask)==plugins.getIdByIp(mask): advRouter = externalLsa.getAdvRouter() routerId = plugins.getIdByIp(advRouter) return routerId prefixLength -= 1 else: return # def getRouterIdFromStub(self, ip, mask): # prefix = plugins.getPrefixByIpMask(ip, mask) # routerId = self.mapPrefixRouterid.get(prefix) # return routerId if routerId else 0 # def getRouterIdFromExternalLsa(self, ip, mask): # prefix = plugins.getPrefixByIpMask(ip, mask) # lsa = self.mapPrefixExternallsa.get(prefix) # return lsa.getAdvRouter() if lsa else 0 '''
def getAsbrIdByInterfaceIp(self, interfaceIp): if interfaceIp<=0: return asbrId = self.mapInterfaceipRouterid.get(interfaceIp) if asbrId: return asbrId prefix = plugins.getPrefixByIpMask(ip, 32) if prefix: return self.getRouterIdByPrefix(prefix)
def getAsbrSegsByDstSegment(self, dstSegment):
asbrSegs = []
prefixLength = dstSegment.prefixlen()
ds = dstSegment.int()
while prefixLength>0:
prefix = plugins.getPrefixByIpMask(ds, prefixLength)
lsa_list = self.mapPrefixExternallsa.get(prefix)
if lsa_list:
for lsa in lsa_list:
print lsa
asbrSegs = self.asbrRouteSelect(lsa_list)
print "asbrSegs:{}".format(asbrSegs)
return asbrSegs
prefixLength -=1
else:
return "Oh, No, Couldn't find the asbrSegment!"
def getAsbrSegByDstSegment(self, netSegment):
try:
prefixLength = netSegment.prefixlen()
ns = netSegment.int()
print "PrefixLength:{}\tNetSegment:{}".format(prefixLength, ns)
for p,lsa in self.mapPrefixExternallsa.items():
print "Prefix:{}, Lsa:{}".format(p, lsa)
while prefixLength>0:
prefix = plugins.getPrefixByIpMask(ns, prefixLength)
externalLsa = self.mapPrefixExternallsa.get(prefix)
#print "***Lsa:{}".format(externalLsa)
if externalLsa and externalLsa.getPrefixLength()==prefixLength:
#print "Lsa's prefixLengt:{}".format(externalLsa.getPrefixLength())
asbrId = externalLsa.getAdvRouter()
print "SelectLsa:{}".format(plugins.getNetSegmentByIpMask(asbrId))
asbrSeg = plugins.getNetSegmentByIpMask(asbrId)
return asbrSeg
prefixLength -= 1
except Exception,e:
print "@@@ AsbrSeg Find Error:{}-{}".format(Exception, e)
def getPrefix(self):
# srcIp = plugins.getIpById(self.srcIp)
# mask = plugins.getIpById(self.mask)
return plugins.getPrefixByIpMask(self.srcIp, self.mask)
def getPrefix(self):
return plugins.getPrefixByIpMask(self.srcIp, self.mask)