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iwd/autotests/util/hostapd.py
James Prestwood cdc9eb13aa auto-t: hostapd: raise exception upon invalid config
If the config file passed in is not found we would continue and
eventually something else would fail. Instead immediately raise an
exception to be more clear on what is actually failing.
2019-10-22 21:58:30 -05:00

143 lines
4.2 KiB
Python

#!/usr/bin/python3
import os, os.path
from wiphy import wiphy_map
import re
import socket
chan_freq_map = [
None,
2412,
2417,
2422,
2427,
2432,
2437,
2442,
2447,
2452,
2457,
2462,
2467,
2472,
2484
]
hostapd_map = {ifname: intf for wname, wiphy in wiphy_map.items()
for ifname, intf in wiphy.interface_map.items()
if wiphy.use == 'hostapd'}
class HostapdCLI:
def __init__(self, interface=None, config=None):
if not interface and not config:
raise Exception('interface or config must be provided')
if not interface:
for intf in hostapd_map.values():
if intf.config == config:
interface = intf
break
if not interface:
raise Exception('config %s not found' % config)
self.ifname = interface.name
self.socket_path = os.path.dirname(interface.ctrl_interface)
self.cmdline = 'hostapd_cli -p"' + self.socket_path + '" -i"' + \
self.ifname + '"'
self._hostapd_restarted = False
def __del__(self):
if self._hostapd_restarted:
os.system('killall hostapd')
def wps_push_button(self):
os.system(self.cmdline + ' wps_pbc')
def wps_pin(self, pin):
os.system(self.cmdline + ' wps_pin any ' + pin)
def deauthenticate(self, client_address):
os.system(self.cmdline + ' deauthenticate ' + client_address)
def eapol_reauth(self, client_address):
cmd = 'IFNAME=' + self.ifname + ' EAPOL_REAUTH ' + client_address
s = socket.socket(socket.AF_UNIX, socket.SOCK_DGRAM)
s.connect(self.socket_path + '/' + self.ifname)
s.sendall(cmd.encode('utf-8'))
s.close()
def reload(self):
# Seemingly all three commands needed for the instance to notice
# interface's address change
cmds = 'reload\ndisable\nenable\n'
proc = os.popen(self.cmdline, mode='w')
lines = proc.write(cmds)
proc.close()
def list_sta(self):
proc = os.popen(self.cmdline + ' list_sta')
lines = proc.read()
proc.close()
return [line for line in lines.split('\n') if line]
def set_neighbor(self, addr, ssid, nr):
os.system(self.cmdline + ' set_neighbor ' + addr + ' ssid=\\""' + ssid +
'"\\" nr=' + nr)
def send_bss_transition(self, device, nr_list):
# Send a BSS transition to a station (device). nr_list should be an
# array of tuples containing the BSS address and neighbor report.
# Parsing the neighbor report is a bit ugly but it makes it more
# consistent with the set_neighbor() API, i.e. the same neighbor report
# string could be used in both API's.
pref = 1
cmd = self.cmdline + ' bss_tm_req ' + device
for i in nr_list:
addr = i[0]
nr = i[1]
bss_info=str(int(nr[0:8], 16))
op_class=str(int(nr[8:10], 16))
chan_num=nr[10:12]
phy_num=nr[14:16]
cmd += ' pref=%s neighbor=%s,%s,%s,%s,%s' % \
(str(pref), addr, bss_info, op_class, chan_num, phy_num)
pref += 1
os.system(cmd)
@staticmethod
def kill_all():
os.system('killall hostapd')
def get_config_value(self, key):
# first find the right config file
with open(hostapd_map[self.ifname].config, 'r') as f:
# read in config file and search for key
cfg = f.read()
match = re.search(r'%s=.*' % key, cfg)
if match:
return match.group(0).split('=')[1]
return None
def get_freq(self):
return chan_freq_map[int(self.get_config_value('channel'))]
def ungraceful_restart(self):
'''
Ungracefully kill and restart hostapd
'''
intf = hostapd_map[self.ifname]
os.system('killall -9 hostapd')
os.system('ifconfig %s down' % intf.name)
os.system('ifconfig %s up' % intf.name)
os.system('hostapd -g %s -i %s %s &' %
(intf.ctrl_interface, intf.name, intf.config))
# set flag so hostapd can be killed after the test
self._hostapd_restarted = True