class Host(Node):
def __init__(self, name, interfaces):
Node.__init__(self, name, interfaces)
self.conn = None
if len(interfaces) > 1:
raise Exception("Host.__init__: too many interfaces")
self.__intf = interfaces[0]
self.__httphandler = HTTPHandler(self.__send)
def __send(self, packet):
self.send_packet(self.__intf, packet)
def connect(self, _):
print "Rejecting connection to %s - may not control a Host node" % self.name
return False
def handle_packet(self, intf, packet):
"""Replies to echo requests, arp requests, also TCP handshake, and simple HTTP Server"""
self.__httphandler.process_packet(intf.ip, intf.mac, packet)
class Client:
def __init__(self):
self.__interface = None
self.__mac = None
self.__ip = None
self.__mask = None
self.__http = HTTPHandler(self.send)
def send(self, what):
print "send " + repr(what)
self.__prot.send(VNSPacket(self.__interface, what))
def callback(self, prot, msg):
self.__prot = prot
if self.__interface is None:
for m in msg:
for i in range(0, len(m)):
# print dict(zip(m[::2],m[1::2]))
if m[i] == VNSInterface.HWINTERFACE:
self.__interface = m[i + 1]
print "interface: " + self.__interface
i += 1
elif m[i] == VNSInterface.HWSPEED:
i += 2
elif m[i] == VNSInterface.HWETHER:
self.__mac = m[i + 1][0:6]
print "MAC : " + VNS.MACToString(self.__mac)
i += 1
elif m[i] == VNSInterface.HWETHIP:
self.__ip = m[i + 1]
print "ip : " + VNS.SubnetToString(self.__ip)
i += 2
elif m[i] == VNSInterface.HWSUBNET:
i += 2
elif m[i] == VNSInterface.HWMASK:
self.__mask = m[i + 1]
print "mask : " + VNS.SubnetToString(self.__mask)
else:
print msg
self.__http.process_packet(self.__ip, self.__mac, msg.ethernet_frame)
