def find_more_specific(consumer):
rib = Radix()
for item in consumer:
data = json.loads(item.value)
if "as_path" not in data:
continue
for node in rib.search_covering(data["prefix"]):
for peer, as_path in node.data.iteritems():
if peer != data["peer_as"]:
yield (node.prefix, as_path, data["prefix"], data["as_path"])
node = rib.add(data["prefix"])
node.data[data["peer_as"]] = data["as_path"]
def find_more_specific(consumer):
rib = Radix()
for item in consumer:
data = json.loads(item.value)
if "as_path" not in data:
continue
for node in rib.search_covering(data["prefix"]):
for peer, as_path in node.data.iteritems():
if peer != data["peer_as"]:
yield (node.prefix, as_path, data["prefix"],
data["as_path"])
node = rib.add(data["prefix"])
node.data[data["peer_as"]] = data["as_path"]
if not prefix.startswith("#"):
anycast.add(prefix.strip())
count += 1
logger.info("loaded %s prefixes in the anycast list", count)
logger.info("filtering on prefixes from the file %s", args.anycast_file)
else:
raise ValueError("please provide a anycast prefix list file")
if args.as_rel_file is not None and args.ppdc_ases_file is not None:
relations, childs, parents = caida_filter_annaunce(args.as_rel_file, args.ppdc_ases_file)
else:
raise ValueError("caida files required")
for event in find_more_specific(consumer):
try:
as_path1 = event[1].split(" ")
as_path2 = event[3].split(" ")
except:
logger.warning("oops %s", event)
continue
if len(as_path1) < 3 or len(as_path2) < 3:
continue
if same_path(as_path1, as_path2) or (verify_path(as_path1) and verify_path(as_path2)):
continue
nodes = list(anycast.search_covering(event[3]))
print(event, "anycast" if len(nodes) > 0 else "unknown")
logger.info("loaded %s prefixes in the anycast list", count)
logger.info("filtering on prefixes from the file %s",
args.anycast_file)
else:
raise ValueError("please provide a anycast prefix list file")
if args.as_rel_file is not None and args.ppdc_ases_file is not None:
relations, childs, parents = caida_filter_annaunce(
args.as_rel_file, args.ppdc_ases_file)
else:
raise ValueError("caida files required")
for event in find_more_specific(consumer):
try:
as_path1 = event[1].split(" ")
as_path2 = event[3].split(" ")
except:
logger.warning("oops %s", event)
continue
if len(as_path1) < 3 or len(as_path2) < 3:
continue
if same_path(as_path1, as_path2) or (verify_path(as_path1)
and verify_path(as_path2)):
continue
nodes = list(anycast.search_covering(event[3]))
print(event, "anycast" if len(nodes) > 0 else "unknown")
