mirror of
https://github.com/vanhoefm/fragattacks.git
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98 lines
2.9 KiB
Python
98 lines
2.9 KiB
Python
# FST tests related definitions
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# Copyright (c) 2015, Qualcomm Atheros, Inc.
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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 subprocess
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import time
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import logging
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import hostapd
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logger = logging.getLogger()
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fst_test_def_group = 'fstg0'
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fst_test_def_freq_g = '2412' # Channel 1
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fst_test_def_freq_a = '5180' # Channel 36
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fst_test_def_chan_g = '1'
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fst_test_def_chan_a = '36'
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fst_test_def_prio_low = '100'
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fst_test_def_prio_high = '110'
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fst_test_def_llt = '100'
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fst_test_def_reg_domain = '00'
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class HapdRegCtrl:
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def __init__(self):
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self.refcnt = 0
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self.ifname = None
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self.changed = False
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def __del__(self):
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if self.refcnt != 0 and self.changed == True:
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self.restore_reg_domain()
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def start(self):
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if self.ifname != None:
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hapd = hostapd.Hostapd(self.ifname)
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self.changed = self.wait_hapd_reg_change(hapd)
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def stop(self):
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if self.changed == True:
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self.restore_reg_domain()
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self.changed = False
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def add_ap(self, ifname, chan):
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if self.changed == False and self.channel_may_require_reg_change(chan):
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self.ifname = ifname
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@staticmethod
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def channel_may_require_reg_change(chan):
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if int(chan) > 14:
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return True
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return False
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@staticmethod
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def wait_hapd_reg_change(hapd):
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state = hapd.get_status_field("state")
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if state != "COUNTRY_UPDATE":
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state = hapd.get_status_field("state")
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if state != "ENABLED":
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raise Exception("Unexpected interface state - expected COUNTRY_UPDATE")
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else:
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logger.debug("fst hostapd: regulatory domain already set")
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return True
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logger.debug("fst hostapd: waiting for regulatory domain to be set...")
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ev = hapd.wait_event(["AP-ENABLED"], timeout=10)
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if not ev:
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raise Exception("AP setup timed out")
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logger.debug("fst hostapd: regulatory domain set")
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state = hapd.get_status_field("state")
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if state != "ENABLED":
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raise Exception("Unexpected interface state - expected ENABLED")
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logger.debug("fst hostapd: regulatory domain ready")
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return True
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@staticmethod
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def restore_reg_domain():
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logger.debug("fst hostapd: waiting for regulatory domain to be restored...")
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res = subprocess.call(['iw', 'reg', 'set', fst_test_def_reg_domain])
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if res != 0:
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raise Exception("Cannot restore regulatory domain")
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logger.debug("fst hostapd: regulatory domain ready")
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def fst_clear_regdom():
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cmd = subprocess.Popen(["iw", "reg", "get"], stdout=subprocess.PIPE)
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res = cmd.stdout.read().decode()
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cmd.stdout.close()
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if "country 00:" not in res:
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subprocess.call(['iw', 'reg', 'set', '00'])
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time.sleep(0.1)
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