8c87f65f32
This makes some cases more convenient with read-only file systems. Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
149 lines
4.5 KiB
Python
149 lines
4.5 KiB
Python
#!/usr/bin/python
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#
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# Python class for controlling hostapd
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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 time
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import logging
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import wpaspy
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logger = logging.getLogger(__name__)
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hapd_ctrl = '/var/run/hostapd'
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hapd_global = '/var/run/hostapd-global'
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class HostapdGlobal:
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def __init__(self):
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self.ctrl = wpaspy.Ctrl(hapd_global)
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def add(self, ifname):
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res = self.ctrl.request("ADD " + ifname + " " + hapd_ctrl)
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if not "OK" in res:
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raise Exception("Could not add hostapd interface " + ifname)
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def remove(self, ifname):
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self.ctrl.request("REMOVE " + ifname)
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class Hostapd:
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def __init__(self, ifname):
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self.ifname = ifname
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self.ctrl = wpaspy.Ctrl(os.path.join(hapd_ctrl, ifname))
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def request(self, cmd):
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logger.debug(self.ifname + ": CTRL: " + cmd)
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return self.ctrl.request(cmd)
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def ping(self):
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return "PONG" in self.request("PING")
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def set(self, field, value):
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logger.debug(self.ifname + ": SET " + field + "=" + value)
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if not "OK" in self.request("SET " + field + " " + value):
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raise Exception("Failed to set hostapd parameter " + field)
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def set_defaults(self):
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self.set("driver", "nl80211")
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self.set("hw_mode", "g")
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self.set("channel", "1")
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self.set("ieee80211n", "1")
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def set_open(self, ssid):
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self.set_defaults()
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self.set("ssid", ssid)
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def set_wpa2_psk(self, ssid, passphrase):
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self.set_defaults()
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self.set("ssid", ssid)
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self.set("wpa_passphrase", passphrase)
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self.set("wpa", "2")
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self.set("wpa_key_mgmt", "WPA-PSK")
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self.set("rsn_pairwise", "CCMP")
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def set_wpa_psk(self, ssid, passphrase):
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self.set_defaults()
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self.set("ssid", ssid)
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self.set("wpa_passphrase", passphrase)
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self.set("wpa", "1")
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self.set("wpa_key_mgmt", "WPA-PSK")
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self.set("wpa_pairwise", "TKIP")
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def set_wpa_psk_mixed(self, ssid, passphrase):
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self.set_defaults()
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self.set("ssid", ssid)
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self.set("wpa_passphrase", passphrase)
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self.set("wpa", "3")
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self.set("wpa_key_mgmt", "WPA-PSK")
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self.set("wpa_pairwise", "TKIP")
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self.set("rsn_pairwise", "CCMP")
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def set_wep(self, ssid, key):
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self.set_defaults()
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self.set("ssid", ssid)
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self.set("wep_key0", key)
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def enable(self):
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if not "OK" in self.ctrl.request("ENABLE"):
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raise Exception("Failed to enable hostapd interface " + self.ifname)
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def disable(self):
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if not "OK" in self.ctrl.request("ENABLE"):
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raise Exception("Failed to disable hostapd interface " + self.ifname)
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def add_ap(ifname, params):
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logger.info("Starting AP " + ifname)
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hapd_global = HostapdGlobal()
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hapd_global.remove(ifname)
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hapd_global.add(ifname)
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hapd = Hostapd(ifname)
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if not hapd.ping():
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raise Exception("Could not ping hostapd")
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hapd.set_defaults()
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fields = [ "ssid", "wpa_passphrase", "wpa_key_mgmt", "wpa",
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"wpa_pairwise", "rsn_pairwise", "auth_server_addr" ]
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for field in fields:
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if field in params:
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hapd.set(field, params[field])
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for f,v in params.items():
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if f in fields:
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continue
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if isinstance(v, list):
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for val in v:
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hapd.set(f, val)
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else:
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hapd.set(f, v)
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hapd.enable()
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def wpa2_params(ssid=None, passphrase=None):
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params = { "wpa": "2",
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"wpa_key_mgmt": "WPA-PSK",
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"rsn_pairwise": "CCMP" }
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if ssid:
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params["ssid"] = ssid
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if passphrase:
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params["wpa_passphrase"] = passphrase
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return params
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def wpa_params(ssid=None, passphrase=None):
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params = { "wpa": "1",
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"wpa_key_mgmt": "WPA-PSK",
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"wpa_pairwise": "TKIP" }
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if ssid:
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params["ssid"] = ssid
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if passphrase:
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params["wpa_passphrase"] = passphrase
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return params
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def wpa_mixed_params(ssid=None, passphrase=None):
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params = { "wpa": "3",
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"wpa_key_mgmt": "WPA-PSK",
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"wpa_pairwise": "TKIP",
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"rsn_pairwise": "CCMP" }
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if ssid:
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params["ssid"] = ssid
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if passphrase:
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params["wpa_passphrase"] = passphrase
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return params
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