def get_traffic_class(self):
version = self.check_inet(2, 2)
if version == 4:
return self.pi.l3p[1]
elif version == 6:
return (lib.get_short(self.pi.l3p, 0) >> 4) & 0x00ff
return None
def set_traffic_class(self, new_val):
version = self.check_inet(2, 2)
if version == 4:
self.pi.l3p[1] = new_val
elif version == 6:
val = lib.get_short(self.pi.l3p, 0)
lib.set_short(self.pi.l3p, 0, (val & 0xF00F) | (new_val << 4))
else:
raise PltError("Data too short to set traffic_class")
return None
def get_dst_port(self):
if self.check_tcp(4):
return lib.get_short(self.pi.dp, 2)
return None
def get_src_port(self):
if self.check_tcp(2):
return lib.get_short(self.pi.dp, 0)
return None
def get_payload_len(self):
if self.check_ip6(6):
return lib.get_short(self.pi.l3p, 4)
return None
def get_checksum(self):
if self.check_ip(12):
return lib.get_short(self.pi.l3p, 10)
return None
def get_frag_offset(self):
if self.check_ip(8):
return lib.get_short(self.pi.l3p, 6) & 0x1FFF
return None
def get_checksum(self):
if self.check_udp(8):
return lib.get_short(self.pi.dp, 6)
return None
def get_checksum(self):
if self.check_tcp(18):
return lib.get_short(self.pi.dp, 16)
return None
def get_short(ca, x): # Get 16-bit integer from cdata uint8_t[]
return lib.get_short(ca, x)
def get_sequence(self):
if self.pi.rem >= 8:
return lib.get_short(self.pi.dp, 6)
return None
def get_ident(self):
if self.pi.rem >= 6:
return lib.get_short(self.pi.dp, 4)
return None
def get_checksum(self):
if self.check_icmp6(4):
return lib.get_short(self.pi.dp, 2)
return None
def get_flags(self):
if self.check_tcp(14):
return lib.get_short(self.pi.dp, 12) & 0x0FFF
return None
def get_pkt_len(self):
version = self.check_inet(4, 4)
if version == 4:
return lib.get_short(self.pi.l3p, 2)
return None
def get_window(self):
if self.check_tcp(16):
return lib.get_short(self.pi.dp, 14)
return None
def get_ident(self):
if self.check_ip(6):
return lib.get_short(self.pi.l3p, 4)
return None
def get_urg_ptr(self):
if self.check_tcp(20):
return lib.get_short(self.pi.dp, 18)
return None
def get_len(self):
if self.check_udp(6):
return lib.get_short(self.pi.dp, 4)
return None
