hostapd/tests/hwsim/hostapd.py

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#!/usr/bin/python
#
# Python class for controlling hostapd
# 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 time
import logging
import wpaspy
logger = logging.getLogger(__name__)
hapd_ctrl = '/var/run/hostapd'
hapd_global = 'hostapd-global'
class HostapdGlobal:
def __init__(self):
self.ctrl = wpaspy.Ctrl(hapd_global)
def add(self, ifname):
res = self.ctrl.request("ADD " + ifname + " " + hapd_ctrl)
if not "OK" in res:
raise Exception("Could not add hostapd interface " + ifname)
def remove(self, ifname):
self.ctrl.request("REMOVE " + ifname)
class Hostapd:
def __init__(self, ifname):
self.ifname = ifname
self.ctrl = wpaspy.Ctrl(os.path.join(hapd_ctrl, ifname))
def request(self, cmd):
logger.debug(self.ifname + ": CTRL: " + cmd)
return self.ctrl.request(cmd)
def ping(self):
return "PONG" in self.request("PING")
def set(self, field, value):
logger.debug(self.ifname + ": SET " + field + "=" + value)
if not "OK" in self.request("SET " + field + " " + value):
raise Exception("Failed to set hostapd parameter " + field)
def set_defaults(self):
self.set("driver", "nl80211")
self.set("hw_mode", "g")
self.set("channel", "1")
self.set("ieee80211n", "1")
def set_open(self, ssid):
self.set_defaults()
self.set("ssid", ssid)
def set_wpa2_psk(self, ssid, passphrase):
self.set_defaults()
self.set("ssid", ssid)
self.set("wpa_passphrase", passphrase)
self.set("wpa", "2")
self.set("wpa_key_mgmt", "WPA-PSK")
self.set("rsn_pairwise", "CCMP")
def enable(self):
if not "OK" in self.ctrl.request("ENABLE"):
raise Exception("Failed to enable hostapd interface " + self.ifname)
def disable(self):
if not "OK" in self.ctrl.request("ENABLE"):
raise Exception("Failed to disable hostapd interface " + self.ifname)