def test_parse_mpls_label_stack(self):
label_bin = b'\x00\x01\x41'
self.assertEqual([20], MPLSVPN.parse_mpls_label_stack(label_bin))
label_bin = b'\x00\x01\x10\x00\x01\x31'
self.assertEqual([17, 19], MPLSVPN.parse_mpls_label_stack(label_bin))
label_bin = b'\x80\x00\x00'
self.assertEqual([524288], MPLSVPN.parse_mpls_label_stack(label_bin))
def test_parse_mpls_label_stack(self):
label_bin = b'\x00\x01\x41'
self.assertEqual([20], MPLSVPN.parse_mpls_label_stack(label_bin))
label_bin = b'\x00\x01\x10\x00\x01\x31'
self.assertEqual([17, 19], MPLSVPN.parse_mpls_label_stack(label_bin))
label_bin = b'\x80\x00\x00'
self.assertEqual([524288], MPLSVPN.parse_mpls_label_stack(label_bin))
def parse(cls, value, iswithdraw=False):
route = dict()
# rd
offset = 8
route['rd'] = cls.parse_rd(value[0:offset])
# esi
route['esi'] = int(binascii.b2a_hex(value[offset:offset + 10]), 16)
offset += 10
# ethernet tag id
route['eth_tag_id'] = struct.unpack('!I', value[offset:offset + 4])[0]
offset += 5
# mac address
route['mac'] = str(
netaddr.EUI(int(binascii.b2a_hex(value[offset:offset + 6]), 16)))
offset += 6
ip_addr_len = ord(value[offset:offset + 1])
offset += 1
# ip address
if ip_addr_len != 0:
route['ip'] = str(
netaddr.IPAddress(
int(
binascii.b2a_hex(value[offset:offset +
int(ip_addr_len / 8)]), 16)))
offset += int(ip_addr_len / 8)
# label
route['label'] = MPLSVPN.parse_mpls_label_stack(value[offset:])
return route
def parse(cls, data):
route = dict()
route['rd'] = cls.parse_rd(data[0:8])
offset = 8
route['esi'] = int(binascii.b2a_hex(data[offset: offset+10]), 16)
offset += 10
# ethernet tag id
route['eth_tag_id'] = struct.unpack('!I', data[offset: offset+4])[0]
offset += 4
route['label'] = MPLSVPN.parse_mpls_label_stack(data[offset:])
return route
def parse(cls, value, iswithdraw=False):
route = dict()
route['rd'] = cls.parse_rd(value[0:8])
offset = 8
route['esi'] = int(binascii.b2a_hex(value[offset:offset + 10]), 16)
offset += 10
# ethernet tag id
route['eth_tag_id'] = struct.unpack('!I', value[offset:offset + 4])[0]
offset += 4
route['label'] = MPLSVPN.parse_mpls_label_stack(value[offset:])
return route
def parse(cls, data):
route = dict()
# rd
offset = 8
route['rd'] = cls.parse_rd(data[0:offset])
# esi
route['esi'] = int(binascii.b2a_hex(data[offset: offset+10]), 16)
offset += 10
# ethernet tag id
route['eth_tag_id'] = struct.unpack('!I', data[offset: offset+4])[0]
offset += 5
# mac address
route['mac'] = str(netaddr.EUI(int(binascii.b2a_hex(data[offset: offset+6]), 16)))
offset += 6
ip_addr_len = ord(data[offset: offset + 1])
offset += 1
# ip address
if ip_addr_len != 0:
route['ip'] = str(netaddr.IPAddress(int(binascii.b2a_hex(data[offset: offset + int(ip_addr_len / 8)]), 16)))
offset += int(ip_addr_len / 8)
# label
route['label'] = MPLSVPN.parse_mpls_label_stack(data[offset:])
return route