def run(self):
nat = {}
clients = []
srv = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
srv.bind((self.addr, self.port))
ipr = IPRoute()
ipr.bind()
poll = select.poll()
poll.register(ipr, select.POLLIN | select.POLLPRI)
poll.register(srv, select.POLLIN | select.POLLPRI)
while True:
events = poll.poll()
for (fd, event) in events:
if fd == ipr.fileno():
bufsize = ipr.getsockopt(socket.SOL_SOCKET,
socket.SO_RCVBUF) // 2
data = ipr.recv(bufsize)
cookie = struct.unpack('I', data[8:12])[0]
if cookie == 0:
for address in clients:
srv.sendto(data, address)
else:
srv.sendto(data, nat[cookie])
else:
data, address = srv.recvfrom(16384)
if data is None:
clients.remove(address)
continue
cookie = struct.unpack('I', data[8:12])[0]
nat[cookie] = address
ipr.sendto(data, (0, 0))
def run(self):
nat = {}
clients = []
srv = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
srv.bind((self.addr, self.port))
ipr = IPRoute()
ipr.bind()
poll = select.poll()
poll.register(ipr, select.POLLIN | select.POLLPRI)
poll.register(srv, select.POLLIN | select.POLLPRI)
while True:
events = poll.poll()
for (fd, event) in events:
if fd == ipr.fileno():
bufsize = ipr.getsockopt(socket.SOL_SOCKET,
socket.SO_RCVBUF) // 2
data = ipr.recv(bufsize)
cookie = struct.unpack('I', data[8:12])[0]
if cookie == 0:
for address in clients:
srv.sendto(data, address)
else:
srv.sendto(data, nat[cookie])
else:
data, address = srv.recvfrom(16384)
if data is None:
clients.remove(address)
continue
cookie = struct.unpack('I', data[8:12])[0]
nat[cookie] = address
ipr.sendto(data, (0, 0))
