def test_construct_segement_lists(self):
data_dict = {
"0":
"old",
"128": [{
"9":
10,
"1": [{
"1": {
"label": 2000
}
}, {
"3": {
"node": "10.1.1.1",
"SID": {
"label": 2000,
"TC": 0,
"S": 0,
"TTL": 255
}
}
}]
}]
}
data_hex_1 = b'\x80\x00\x1d\x00\x09\x06\x00\x00\x00\x00\x00\x0a\x01\x06\x00\x00\x00\x7d\x00' \
b'\xff\x03\x0a\x00\x00\x0a\x01\x01\x01\x00\x7d\x00\xff\x07\x02\x00\x00'
data_hex_2 = b'\x07\x02\x00\x00\x80\x00\x1d\x00\x09\x06\x00\x00\x00\x00\x00\x0a\x01\x06\x00' \
b'\x00\x00\x7d\x00\xff\x03\x0a\x00\x00\x0a\x01\x01\x01\x00\x7d\x00\xff'
self.assertTrue(
TunnelEncaps.construct(data_dict)[7:] in [data_hex_1, data_hex_2])
def test_construct_weight(self):
data_dict = {"9": 10, "1": []}
segment_list = dict([(int(l), r) for (l, r) in data_dict.items()])
weight_hex = b'\x09\x06\x00\x00\x00\x00\x00\x0a'
sid_hex = b''
self.assertEqual((weight_hex, sid_hex),
TunnelEncaps.construct_weight_and_seg(segment_list))
def test_construct_remote_endpoint_ipv4(self):
data_dict = {
"0": "new",
"6": {
"asn": 300,
'afi': 'ipv4',
'address': '1.1.1.1'
}
}
data_hex = b'\x06\x0a\x00\x00\x01\x2c\x00\x01\x01\x01\x01\x01'
self.assertEqual(data_hex, TunnelEncaps.construct(data_dict)[12:])
def test_construct_remote_endpoint_ipv6(self):
data_dict = {
"0": "new",
"6": {
"asn": 300,
'afi': 'ipv6',
'address': 'ABCD:EF01:2345:6789:ABCD:EF01:2345:6789'
}
}
data_hex = b'\x06\x16\x00\x00\x01\x2c\x00\x02\xab\xcd\xef\x01\x23\x45\x67\x89\xab\xcd\xef' \
b'\x01\x23\x45\x67\x89'
self.assertEqual(data_hex, TunnelEncaps.construct(data_dict)[12:])
def test_construct_seg(self):
data_dict = {
"1": [{
"1": {
"label": 2000
}
}, {
"3": {
"node": "10.1.1.1",
"SID": {
"label": 2000,
"TC": 0,
"S": 0,
"TTL": 255
}
}
}]
}
segment_list = dict([(int(l), r) for (l, r) in data_dict.items()])
weight_hex = b''
sid_hex = b'\x01\x06\x00\x00\x00\x7d\x00\xff\x03\x0a\x00\x00\x0a\x01\x01\x01\x00\x7d\x00\xff'
self.assertEqual((weight_hex, sid_hex),
TunnelEncaps.construct_weight_and_seg(segment_list))
def test_construct_new_preference(self):
data_dict = {"0": "new", "12": 100}
data_hex = b'\x0c\x06\x00\x00\x00\x00\x00\x64'
self.assertEqual(data_hex, TunnelEncaps.construct(data_dict)[7:15])
def test_construct_new_binding_sid(self):
data_dict = {"0": "new", "13": 25102}
data_hex = b'\x0d\x06\x00\x00\x06\x20\xe0\x00'
self.assertEqual(data_hex, TunnelEncaps.construct(data_dict)[7:])
def test_construct_old_binding_sid(self):
data_dict = {"0": "old", "7": 25102}
data_hex = b'\x07\x06\x00\x00\x06\x20\xe0\x00'
self.assertEqual(data_hex, TunnelEncaps.construct(data_dict)[7:])
def test_construct_optional_label_sid(self):
option_sid = 16384255
data_dict = {"label": 4000, "TC": 0, "S": 0, "TTL": 255}
self.assertEqual(option_sid,
TunnelEncaps.construct_optional_label_sid(data_dict))
def test_construct_old_preference(self):
data_dict = {"0": "old", "6": 100}
data_hex = b'\x06\x06\x00\x00\x00\x00\x00\x64'
self.assertEqual(data_hex, TunnelEncaps.construct(data_dict)[8:16])
def construct_attributes(attr_dict, asn4=False):
"""
construts BGP Update attirubte.
:param attr_dict: bgp attribute dictionary
:param asn4: support 4 bytes asn or not
"""
attr_raw_hex = b''
for type_code, value in attr_dict.items():
if type_code == bgp_cons.BGPTYPE_ORIGIN:
origin_hex = Origin.construct(value=value)
attr_raw_hex += origin_hex
elif type_code == bgp_cons.BGPTYPE_AS_PATH:
aspath_hex = ASPath.construct(value=value, asn4=asn4)
attr_raw_hex += aspath_hex
elif type_code == bgp_cons.BGPTYPE_NEXT_HOP:
nexthop_hex = NextHop.construct(value=value)
attr_raw_hex += nexthop_hex
elif type_code == bgp_cons.BGPTYPE_MULTI_EXIT_DISC:
med_hex = MED.construct(value=value)
attr_raw_hex += med_hex
elif type_code == bgp_cons.BGPTYPE_LOCAL_PREF:
localpre_hex = LocalPreference.construct(value=value)
attr_raw_hex += localpre_hex
elif type_code == bgp_cons.BGPTYPE_ATOMIC_AGGREGATE:
atomicaggregate_hex = AtomicAggregate.construct(value=value)
attr_raw_hex += atomicaggregate_hex
elif type_code == bgp_cons.BGPTYPE_AGGREGATOR:
aggregator_hex = Aggregator.construct(value=value, asn4=asn4)
attr_raw_hex += aggregator_hex
elif type_code == bgp_cons.BGPTYPE_COMMUNITIES:
community_hex = Community.construct(value=value)
attr_raw_hex += community_hex
elif type_code == bgp_cons.BGPTYPE_ORIGINATOR_ID:
originatorid_hex = OriginatorID.construct(value=value)
attr_raw_hex += originatorid_hex
elif type_code == bgp_cons.BGPTYPE_CLUSTER_LIST:
clusterlist_hex = ClusterList.construct(value=value)
attr_raw_hex += clusterlist_hex
elif type_code == bgp_cons.BGPTYPE_MP_REACH_NLRI:
mpreach_hex = MpReachNLRI().construct(value=value)
attr_raw_hex += mpreach_hex
elif type_code == bgp_cons.BGPTYPE_MP_UNREACH_NLRI:
mpunreach_hex = MpUnReachNLRI.construct(value=value)
attr_raw_hex += mpunreach_hex
elif type_code == bgp_cons.BGPTYPE_EXTENDED_COMMUNITY:
community_ext_hex = ExtCommunity.construct(value=value)
attr_raw_hex += community_ext_hex
elif type_code == bgp_cons.BGPTYPE_PMSI_TUNNEL:
evpn_overlay = EVPN.signal_evpn_overlay(attr_dict)
attr_raw_hex += PMSITunnel.construct(value=value,
evpn_overlay=evpn_overlay)
elif type_code == bgp_cons.BGPTYPE_TUNNEL_ENCAPS_ATTR:
tunnelencap_hex = TunnelEncaps.construct(value=value)
attr_raw_hex += tunnelencap_hex
elif type_code == bgp_cons.BGPTYPE_LARGE_COMMUNITY:
large_community_ext_hex = LargeCommunity.construct(value=value)
attr_raw_hex += large_community_ext_hex
return attr_raw_hex
def test_construct_policy_name(self):
data_dict = {"0": "new", "129": "test"}
data_hex = data_hex = b'\x81\x00\x05\x00\x74\x65\x73\x74'
self.assertEqual(data_hex, TunnelEncaps.construct(data_dict)[12:])
def test_construct_priority(self):
data_dict = {"0": "new", "15": 200}
data_hex = data_hex = b'\x0f\x02\xc8\x00'
self.assertEqual(data_hex, TunnelEncaps.construct(data_dict)[12:])
def test_construct_enlp(self):
data_dict = {"0": "new", "14": 1}
data_hex = b'\x0e\x03\x00\x00\x01'
self.assertEqual(data_hex, TunnelEncaps.construct(data_dict)[12:])
