hostap/wpaspy/wpaspy.py
Jouni Malinen 09491b7392 wpaspy: Add native Python implementation of ctrl_iface access
This can be used as a replacement for the wpaspy.c module that uses
wpa_ctrl.c to access wpa_supplicant/hostapd control interface. Only
the UNIX domain socket version of the control interface is currently
supported.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-03-19 01:53:09 +02:00

70 lines
1.7 KiB
Python

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