name = "EIGRP"
fields_desc = [ByteField("ver", 2),
ByteEnumField("opcode", 5, _EIGRP_OPCODES),
XShortField("chksum", None),
FlagsField("flags", 0, 32, _EIGRP_FLAGS),
IntField("seq", 0),
IntField("ack", 0),
IntField("asn", 100),
RepeatedTlvListField("tlvlist", [], _EIGRPGuessPayloadClass)
]
def post_build(self, p, pay):
p += pay
if self.chksum is None:
c = checksum(p)
p = p[:2] + chb((c >> 8) & 0xff) + chb(c & 0xff) + p[4:]
return p
def mysummary(self):
summarystr = "EIGRP (AS=%EIGRP.asn% Opcode=%EIGRP.opcode%"
if self.opcode == 5 and self.ack != 0:
summarystr += " (ACK)"
if self.flags != 0:
summarystr += " Flags=%EIGRP.flags%"
return self.sprintf(summarystr + ")")
bind_layers(IP, EIGRP, proto=88)
bind_layers(IPv6, EIGRP, nh=88)
IGMPv3.is_valid_mcaddr(igmp.gaddr):
ip.dst = igmp.gaddr
# We do not need to fixup the ether layer, it is done by scapy
#
# if pkt.haslayer(Ether):
# eth = pkt.getlayer(Ether)
# ip_long = atol(ip.dst)
# ether.dst = '01:00:5e:%02x:%02x:%02x' % (
# (ip_long >> 16) & 0x7f, (ip_long >> 8) & 0xff,
# ip_long & 0xff )
return pkt
bind_layers(IP, IGMPv3, frag=0, proto=2, ttl=1, tos=0xc0)
bind_layers(IGMPv3, IGMPv3gr, frag=0, proto=2)
bind_layers(IGMPv3gr, IGMPv3gr, frag=0, proto=2)
if __name__ == "__main__":
print "test float encoding"
from math import log
max_expected_error = 1.0 / (2<<3) # four bit precision
p = IGMPv3()
for v in range(0, 31745):
c = p.encode_float(v)
d = p.decode_float(c)
rel_err = float(v-d)/v if v!=0 else 0.0
assert rel_err <= max_expected_error
fields_desc = [
ByteField("ver", 2),
ByteEnumField("opcode", 5, _EIGRP_OPCODES),
XShortField("chksum", None),
FlagsField("flags", 0, 32, _EIGRP_FLAGS),
IntField("seq", 0),
IntField("ack", 0),
IntField("asn", 100),
PacketListField("tlvlist", [], _EIGRPGuessPayloadClass)
]
def post_build(self, p, pay):
p += pay
if self.chksum is None:
c = checksum(p)
p = p[:2] + chb((c >> 8) & 0xff) + chb(c & 0xff) + p[4:]
return p
def mysummary(self):
summarystr = "EIGRP (AS=%EIGRP.asn% Opcode=%EIGRP.opcode%"
if self.opcode == 5 and self.ack != 0:
summarystr += " (ACK)"
if self.flags != 0:
summarystr += " Flags=%EIGRP.flags%"
return self.sprintf(summarystr + ")")
bind_layers(IP, EIGRP, proto=88)
bind_layers(IPv6, EIGRP, nh=88)
IGMPv3.is_valid_mcaddr(igmp.gaddr):
ip.dst = igmp.gaddr
# We do not need to fixup the ether layer, it is done by scapy
#
# if pkt.haslayer(Ether):
# eth = pkt.getlayer(Ether)
# ip_long = atol(ip.dst)
# ether.dst = '01:00:5e:%02x:%02x:%02x' % (
# (ip_long >> 16) & 0x7f, (ip_long >> 8) & 0xff,
# ip_long & 0xff )
return pkt
bind_layers(IP, IGMPv3, frag=0, proto=2, ttl=1, tos=0xc0)
bind_layers(IGMPv3, IGMPv3gr, frag=0, proto=2)
bind_layers(IGMPv3gr, IGMPv3gr, frag=0, proto=2)
if __name__ == "__main__":
print "test float encoding"
from math import log
max_expected_error = 1.0 / (2 << 3) # four bit precision
p = IGMPv3()
for v in range(0, 31745):
c = p.encode_float(v)
d = p.decode_float(c)
rel_err = float(v - d) / v if v != 0 else 0.0
assert rel_err <= max_expected_error