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