raise NotImplementedError, "--mode %s and --filter are not compatible" % (
options.mode, )
# just wait forever
def tun_fwd(tun, remote, **kw):
global TERMINATE
TERM = TERMINATE
while not TERM:
time.sleep(1)
remote = options.peer_addr
elif options.protocol == "udp":
# connect to remote endpoint
if options.peer_addr and options.peer_port:
rsock = tunchannel.udp_establish(TERMINATE, hostaddr, options.port,
options.peer_addr,
options.peer_port)
remote = os.fdopen(rsock.fileno(), 'r+b', 0)
else:
print >> sys.stderr, "Error: need a remote endpoint in UDP mode"
raise AssertionError, "Error: need a remote endpoint in UDP mode"
elif options.protocol == "tcp":
# connect to remote endpoint
if options.peer_addr and options.peer_port:
rsock = tunchannel.tcp_establish(TERMINATE, hostaddr, options.port,
options.peer_addr,
options.peer_port)
remote = os.fdopen(rsock.fileno(), 'r+b', 0)
else:
print >> sys.stderr, "Error: need a remote endpoint in TCP mode"
raise AssertionError, "Error: need a remote endpoint in TCP mode"
remote = None
elif options.protocol == "gre":
if accept_packet or filter_init:
raise NotImplementedError, "--mode %s and --filter are not compatible" % (options.mode,)
# just wait forever
def tun_fwd(tun, remote, **kw):
global TERMINATE
TERM = TERMINATE
while not TERM:
time.sleep(1)
remote = options.peer_addr
elif options.protocol == "udp":
# connect to remote endpoint
if options.peer_addr and options.peer_port:
rsock = tunchannel.udp_establish(TERMINATE, hostaddr, options.port,
options.peer_addr, options.peer_port)
remote = os.fdopen(rsock.fileno(), 'r+b', 0)
else:
print >>sys.stderr, "Error: need a remote endpoint in UDP mode"
raise AssertionError, "Error: need a remote endpoint in UDP mode"
elif options.protocol == "tcp":
# connect to remote endpoint
if options.peer_addr and options.peer_port:
rsock = tunchannel.tcp_establish(TERMINATE, hostaddr, options.port,
options.peer_addr, options.peer_port)
remote = os.fdopen(rsock.fileno(), 'r+b', 0)
else:
print >>sys.stderr, "Error: need a remote endpoint in TCP mode"
raise AssertionError, "Error: need a remote endpoint in TCP mode"
else:
msg = "Error: Invalid protocol %s" % options.protocol
def __forwarder(weak_self):
# grab strong reference
self = weak_self()
if not self:
return
peer_port = self.peer_port
peer_addr = self.peer_addr
peer_proto = self.peer_proto
peer_cipher = self.peer_cipher
local_port = self.tun_port
local_addr = self.tun_addr
local_proto = self.tun_proto
local_cipher = self.tun_cipher
stderr = self.stderr
ether_mode = self.ethernet_mode
with_pi = self.with_pi
if local_proto != peer_proto:
raise RuntimeError, "Peering protocol mismatch: %s != %s" % (
local_proto, peer_proto)
if local_cipher != peer_cipher:
raise RuntimeError, "Peering cipher mismatch: %s != %s" % (
local_cipher, peer_cipher)
if not peer_port or not peer_addr:
raise RuntimeError, "Misconfigured peer for: %s" % (self, )
if not local_port or not local_addr:
raise RuntimeError, "Misconfigured TUN: %s" % (self, )
TERMINATE = self._terminate
SUSPEND = self._suspend
cipher_key = self.tun_key
tun = self.tun_socket
udp = local_proto == 'udp'
if not tun:
raise RuntimeError, "Unconnected TUN channel %s" % (self, )
if local_proto == 'udp':
rsock = udp_establish(TERMINATE, local_addr, local_port, peer_addr,
peer_port)
remote = os.fdopen(rsock.fileno(), 'r+b', 0)
elif local_proto == 'tcp':
rsock = tcp_establish(TERMINATE, local_addr, local_port, peer_addr,
peer_port)
remote = os.fdopen(rsock.fileno(), 'r+b', 0)
else:
raise RuntimeError, "Bad protocol for %s: %r" % (self, local_proto)
# notify that we're ready
self._connected.set()
# drop strong reference
del self
print >> sys.stderr, "Connected"
tun_fwd(tun,
remote,
with_pi=with_pi,
ether_mode=ether_mode,
cipher_key=cipher_key,
udp=udp,
TERMINATE=TERMINATE,
SUSPEND=SUSPEND,
stderr=stderr,
cipher=local_cipher)
tun.close()
remote.close()
