def serialize(self):
bgp_attrs_bin = bytearray()
for attr in self.bgp_attributes:
bgp_attrs_bin += attr.serialize()
self.attr_len = len(bgp_attrs_bin) # fixup
prefix = ip.text_to_bin(self.prefix)
peer_ip = ip.text_to_bin(self.peer_ip)
return struct.pack(self._HEADER_FMT, self.view_num, self.seq_num,
prefix, self.prefix_len, self.status,
self.originated_time, peer_ip, self.peer_as,
self.attr_len) + bgp_attrs_bin
def serialize(self):
# fixup
if ip.valid_ipv4(self.peer_ip) and ip.valid_ipv4(self.local_ip):
self.afi = self.AFI_IPv4
elif ip.valid_ipv6(self.peer_ip) and ip.valid_ipv6(self.local_ip):
self.afi = self.AFI_IPv6
else:
raise ValueError(
'peer_ip and local_ip must be the same address family: '
'peer_ip=%s, local_ip=%s' % (self.peer_ip, self.local_ip))
buf = struct.pack(self._HEADER_FMT, self.peer_as, self.local_as,
self.if_index, self.afi)
buf += ip.text_to_bin(self.peer_ip)
buf += ip.text_to_bin(self.local_ip)
buf += self.bgp_message.serialize()
return buf
def serialize(self):
if ip.valid_ipv6(self.ip_addr):
# Sets Peer IP Address family bit to IPv6
self.type |= self.IP_ADDR_FAMILY_BIT
ip_addr = ip.text_to_bin(self.ip_addr)
if self.type & self.AS_NUMBER_SIZE_BIT or self.as_num > 0xffff:
# Four octet AS number
self.type |= self.AS_NUMBER_SIZE_BIT
as_num = struct.pack('!I', self.as_num)
else:
# Two octet AS number
as_num = struct.pack('!H', self.as_num)
buf = struct.pack(self._HEADER_FMT, self.type,
addrconv.ipv4.text_to_bin(self.bgp_id))
return buf + ip_addr + as_num
