def connect(self, remotehost, remoteport, through=None):
'''establish a secure shell tunnel between local and remote host
Input:
host -- remote hostname [user@host:path is also valid]
tunnelport -- remote port number
Additional Input:
through -- 'tunnel-through' hostname [default = None]
'''
import util
pick = util.portnumber(self.MINPORT, self.MAXPORT)
while True:
port = pick()
if port < 0:
raise TunnelException, 'No available local port'
#print 'Trying port %d...' % port
try:
self._connect(port, remotehost, remoteport, through=through)
#print 'SSH tunnel %d:%s:%d' % (port, remotehost, remoteport)
except TunnelException, e:
if e.args[0] == 'bind':
self.disconnect()
continue
else:
self._pid = 0
self._tunnel = None #XXX: MMM
self.connected = False
raise TunnelException, 'Connection failed'
self.connected = True
return port
def connect(self, remotehost, remoteport, through=None):
"""establish a secure shell tunnel between local and remote host
Input:
host -- remote hostname [user@host:path is also valid]
tunnelport -- remote port number
Additional Input:
through -- 'tunnel-through' hostname [default = None]
"""
import util
pick = util.portnumber(self.MINPORT, self.MAXPORT)
while True:
port = pick()
if port < 0:
raise TunnelException, "No available local port"
# print 'Trying port %d...' % port
try:
self._connect(port, remotehost, remoteport, through=through)
# print 'SSH tunnel %d:%s:%d' % (port, remotehost, remoteport)
except TunnelException, e:
if e.args[0] == "bind":
self.disconnect()
continue
else:
self._pid = 0
self._tunnel = None # XXX: MMM
self.connected = False
raise TunnelException, "Connection failed"
self.connected = True
return port
def _installSocket(self, host, port):
"""prepare a listening socket"""
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
if port == 0: #Get a random port
pick = util.portnumber(min=port, max=64 * 1024)
while True:
try:
port = pick()
s.bind((host, port))
break
except socket.error:
continue
else: #Designated port
s.bind((host, port))
s.listen(10)
self._socket = s
self.host = host
self.port = port
return
def _installSocket(self, host, port):
"""prepare a listening socket"""
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
if port == 0: #Get a random port
pick = util.portnumber(min=port, max=64*1024)
while True:
try:
port = pick()
s.bind((host, port))
break
except socket.error:
continue
else: #Designated port
s.bind((host, port))
s.listen(10)
self._socket = s
self.host = host
self.port = port
return
