5
我需要使用的paramiko只處理類似這樣的「-R」端口轉發請求到實施SSH服務器:的paramiko服務器模式端口轉發
ssh -N -T -R 40005:destination_host:22 [email protected]
所以,從我瞭解我將不得不實施ServerInterface遠.check_port_forward_request,然後在某個時間點創建一個套接字並偵聽指定的端口。通過Channel/Connection進入的任何數據分別轉到Connection/Channel
class Server (paramiko.ServerInterface):
.
.
.
def check_port_forward_request(self, address, port):
'Check if the requested port forward is allowed'
...
return port
def handler(chan, port):
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.bind(('', port))
sock.listen(1)
conn, addr = s.accept()
while True:
r, w, x = select.select([conn, chan], [], [])
if conn in r:
data = conn.recv(1024)
if len(data) == 0:
break
chan.send(data)
if chan in r:
data = chan.recv(1024)
if len(data) == 0:
break
conn.send(data)
chan.close()
conn.close()
verbose('Tunnel closed from %r' % (chan.origin_addr,))
thr = threading.Thread(target=handler, args=(chan,server_port))
thr.setDaemon(True)
thr.start()
這是實現服務器端paramiko ssh端口轉發的一般思路嗎? 我應該在check_port_forward_request或其他地方啓動線程嗎?