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import socket
import sys
from abc import abstractmethod, ABCMeta
from cStringIO import StringIO
def ppp(headline, packet):
""" Return string containing the output of scapy packet.show() call. """
o = StringIO()
old_stdout = sys.stdout
sys.stdout = o
print(headline)
packet.show()
sys.stdout = old_stdout
return o.getvalue()
class NumericConstant(object):
__metaclass__ = ABCMeta
desc_dict = {}
@abstractmethod
def __init__(self, value):
self._value = value
def __int__(self):
return self._value
def __long__(self):
return self._value
def __str__(self):
if self._value in self.desc_dict:
return self.desc_dict[self._value]
return ""
class Host(object):
""" Generic test host "connected" to VPPs interface. """
@property
def mac(self):
""" MAC address """
return self._mac
@property
def ip4(self):
""" IPv4 address """
return self._ip4
@property
def ip4n(self):
""" IPv4 address """
return socket.inet_pton(socket.AF_INET, self._ip4)
@property
def ip6(self):
""" IPv6 address """
return self._ip6
def __init__(self, mac=None, ip4=None, ip6=None):
self._mac = mac
self._ip4 = ip4
self._ip6 = ip6
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