d52747c99e
Ctrl::__init__ needs to handle socket.connect() exceptions and unlink the client socket file on failures. Signed-hostap: Jouni Malinen <j@w1.fi>
81 lines
2 KiB
Python
81 lines
2 KiB
Python
#!/usr/bin/python
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#
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# wpa_supplicant/hostapd control interface using Python
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# Copyright (c) 2013, Jouni Malinen <j@w1.fi>
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#
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# This software may be distributed under the terms of the BSD license.
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# See README for more details.
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import os
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import socket
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import select
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counter = 0
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class Ctrl:
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def __init__(self, path):
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global counter
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self.started = False
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self.attached = False
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self.s = socket.socket(socket.AF_UNIX, socket.SOCK_DGRAM)
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self.dest = path
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self.local = "/tmp/wpa_ctrl_" + str(os.getpid()) + '-' + str(counter)
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counter += 1
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self.s.bind(self.local)
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try:
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self.s.connect(self.dest)
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except Exception, e:
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self.s.close()
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os.unlink(self.local)
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raise
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self.started = True
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def __del__(self):
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self.close()
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def close(self):
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if self.attached:
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try:
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self.detach()
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except Exception, e:
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# Need to ignore this allow the socket to be closed
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pass
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if self.started:
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self.s.close()
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os.unlink(self.local)
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self.started = False
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def request(self, cmd):
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self.s.send(cmd)
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[r, w, e] = select.select([self.s], [], [], 10)
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if r:
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return self.s.recv(4096)
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raise Exception("Timeout on waiting response")
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def attach(self):
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if self.attached:
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return None
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res = self.request("ATTACH")
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if "OK" in res:
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self.attached = True
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return None
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raise Exception("ATTACH failed")
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def detach(self):
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if not self.attached:
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return None
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res = self.request("DETACH")
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if "OK" in res:
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self.attached = False
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return None
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raise Exception("DETACH failed")
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def pending(self):
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[r, w, e] = select.select([self.s], [], [], 0)
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if r:
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return True
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return False
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def recv(self):
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res = self.s.recv(4096)
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return res
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