/
utils.py
71 lines (49 loc) · 1.51 KB
/
utils.py
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import socket
class ByKeyOrValue(object):
_set_of_pairs = set()
@classmethod
def get(cls, key_or_value, default="Unknown"):
for pair in cls._set_of_pairs:
if pair[0] == key_or_value:
return pair[1]
elif pair[1] == key_or_value:
return pair[0]
return default
class EtherTypes(ByKeyOrValue):
_set_of_pairs = {
("IPv4", 0x0800),
("ARP", 0x0806),
("RARP", 0x8035),
("SNMP", 0x814c),
("IPv6", 0x86dd)
}
class IPVersions(ByKeyOrValue):
_set_of_pairs = {
("IPv4", 4),
("IPv6", 6)
}
class TransportProtocols(ByKeyOrValue):
_set_of_pairs = {
("ICMP", 1),
("TCP", 6),
("UDP", 17)
}
# Header and footer formatting functions
def print_section_header(s):
print("{:=^78}".format(" " + s + " "))
def print_section_footer():
print("{:=^78}\n".format(""))
def print_output(label, format_str, *format_values):
print(("{:<30} " + format_str).format(label, *format_values))
def format_field(field, field_type):
if field_type == "mac":
# Format a MAC address as XX:XX:XX:XX:XX:XX
byte_str = ["{:02x}".format(field[i])
for i in range(0, len(field))]
return ":".join(byte_str)
elif field_type == "ethertype":
return EtherTypes.get(field)
elif field_type == "ipver":
return IPVersions.get(field)
elif field_type == "transproto":
return TransportProtocols.get(field)