def post_build(self, p, pay):
if self.chksum is None:
if isinstance(self.underlayer, IP):
ck = in4_chksum(112, self.underlayer, p)
elif isinstance(self.underlayer, IPv6):
ck = in6_chksum(112, self.underlayer, p)
else:
warning("No IP(v6) layer to compute checksum on VRRP. Leaving null") # noqa: E501
ck = 0
p = p[:6] + chb(ck >> 8) + chb(ck & 0xff) + p[8:]
return p
def post_build(self, p, pay):
if self.chksum is None:
if isinstance(self.underlayer, IP):
ck = in4_chksum(112, self.underlayer, p)
elif isinstance(self.underlayer, IPv6):
ck = in6_chksum(112, self.underlayer, p)
else:
warning("No IP(v6) layer to compute checksum on VRRP. "
"Leaving null")
ck = 0
p = p[:6] + chb(ck >> 8) + chb(ck & 0xff) + p[8:]
return p
def post_build(self, p, pay):
p += pay
tmp_len = self.len
if tmp_len is None:
tmp_len = len(p)
p = p[:2] + struct.pack("!H", tmp_len) + p[4:]
if self.chksum is None:
chksum = in6_chksum(89, self.underlayer, p)
p = p[:12] + struct.pack("!H", chksum) + p[14:]
return p
def post_build(self, p, pay):
p += pay
tmp_len = self.len
if tmp_len is None:
tmp_len = len(p)
p = p[:2] + struct.pack("!H", tmp_len) + p[4:]
if self.chksum is None:
chksum = in6_chksum(89, self.underlayer, p)
p = p[:12] + struct.pack("!H", chksum) + p[14:]
return p
def post_build(self, p, pay):
p += pay
l = self.len
if l is None:
l = len(p)
p = p[:2] + struct.pack("!H", l) + p[4:]
if self.chksum is None:
chksum = in6_chksum(89, self.underlayer, p)
p = p[:12] + chr(chksum >> 8) + chr(chksum & 0xff) + p[14:]
return p
def post_build(self, p, pay):
p += pay
l = self.len
if l is None:
l = len(p)
p = p[:2] + struct.pack("!H", l) + p[4:]
if self.chksum is None:
chksum = in6_chksum(89, self.underlayer, p)
p = p[:12] + chr(chksum >> 8) + chr(chksum & 0xff) + p[14:]
return p