| # Copyright (c) 2010 The Chromium OS Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| import logging |
| import random |
| import re |
| import string |
| |
| from autotest_lib.client.common_lib import error |
| from autotest_lib.server import site_linux_system |
| from autotest_lib.server.cros import wifi_test_utils |
| from autotest_lib.server.cros.network import hostap_config |
| |
| def isLinuxRouter(host): |
| """Check if host is a linux router. |
| |
| @param host Host object representing the remote machine. |
| @return True iff remote system is a Linux system. |
| |
| """ |
| router_uname = host.run('uname').stdout |
| return re.search('Linux', router_uname) |
| |
| |
| class LinuxRouter(site_linux_system.LinuxSystem): |
| """Linux/mac80211-style WiFi Router support for WiFiTest class. |
| |
| This class implements test methods/steps that communicate with a |
| router implemented with Linux/mac80211. The router must |
| be pre-configured to enable ssh access and have a mac80211-based |
| wireless device. We also assume hostapd 0.7.x and iw are present |
| and any necessary modules are pre-loaded. |
| |
| """ |
| |
| KNOWN_TEST_PREFIX = 'network_WiFi' |
| STARTUP_POLLING_INTERVAL_SECONDS = 0.5 |
| STARTUP_TIMEOUT_SECONDS = 10 |
| SUFFIX_LETTERS = string.ascii_lowercase + string.digits |
| SUBNET_PREFIX_OCTETS = (192, 168) |
| |
| def get_capabilities(self): |
| """@return iterable object of AP capabilities for this system.""" |
| caps = set() |
| try: |
| self.cmd_send_management_frame = wifi_test_utils.must_be_installed( |
| self.router, '/usr/bin/send_management_frame') |
| caps.add(self.CAPABILITY_SEND_MANAGEMENT_FRAME) |
| except error.TestFail: |
| pass |
| return super(LinuxRouter, self).get_capabilities().union(caps) |
| |
| |
| def __init__(self, host, params, test_name): |
| """Build a LinuxRouter. |
| |
| @param host Host object representing the remote machine. |
| @param params dict of settings from site_wifitest based tests. |
| @param test_name string name of this test. Used in SSID creation. |
| |
| """ |
| site_linux_system.LinuxSystem.__init__(self, host, params, 'router') |
| self._remove_interfaces() |
| |
| # Router host. |
| self.router = host |
| |
| self.cmd_dhcpd = params.get('cmd_dhcpd', '/usr/sbin/dhcpd') |
| self.cmd_hostapd = wifi_test_utils.must_be_installed( |
| host, params.get('cmd_hostapd', '/usr/sbin/hostapd')) |
| self.cmd_hostapd_cli = wifi_test_utils.must_be_installed( |
| host, params.get('cmd_hostapd_cli', '/usr/sbin/hostapd_cli')) |
| self.dhcpd_conf = '/tmp/dhcpd.%s.conf' |
| self.dhcpd_leases = '/tmp/dhcpd.leases' |
| |
| # hostapd configuration persists throughout the test, subsequent |
| # 'config' commands only modify it. |
| self.ssid_prefix = test_name |
| if self.ssid_prefix.startswith(self.KNOWN_TEST_PREFIX): |
| # Many of our tests start with an uninteresting prefix. |
| # Remove it so we can have more unique bytes. |
| self.ssid_prefix = self.ssid_prefix[len(self.KNOWN_TEST_PREFIX):] |
| self.ssid_prefix = self.ssid_prefix.lstrip('_') |
| self.ssid_prefix += '_' |
| |
| self.default_config = { |
| 'hw_mode': 'g', |
| 'ctrl_interface': '/tmp/hostapd-test.control', |
| 'logger_syslog': '-1', |
| 'logger_syslog_level': '0' |
| } |
| self.hostapd = { |
| 'configured': False, |
| 'config_file': "/tmp/hostapd-test-%s.conf", |
| 'log_file': "/tmp/hostapd-test-%s.log", |
| 'pid_file': "/tmp/hostapd-test-%s.pid", |
| 'log_count': 0, |
| 'driver': "nl80211", |
| 'conf': self.default_config.copy() |
| } |
| self.station = { |
| 'configured': False, |
| 'conf': {}, |
| } |
| self.local_servers = [] |
| self.hostapd_instances = [] |
| self.force_local_server = "force_local_server" in params |
| self.dhcp_low = 1 |
| self.dhcp_high = 128 |
| |
| # Kill hostapd and dhcp server if already running. |
| self.kill_hostapd() |
| self.stop_dhcp_servers() |
| |
| # Place us in the US by default |
| self.router.run("%s reg set US" % self.cmd_iw) |
| |
| |
| def close(self): |
| """Close global resources held by this system.""" |
| self.destroy() |
| super(LinuxRouter, self).close() |
| |
| |
| def create(self, params): |
| """Create a wifi device of the specified type. |
| |
| @param params dict containing the device type under key 'type'. |
| |
| """ |
| self.create_wifi_device(params['type']) |
| |
| |
| def create_wifi_device(self, device_type='hostap'): |
| """Create a wifi device of the specified type. |
| |
| Defaults to creating a hostap managed device. |
| |
| @param device_type string device type. |
| |
| """ |
| # |
| # AP mode is handled entirely by hostapd so we only |
| # have to setup others (mapping the bsd type to what |
| # iw wants) |
| # |
| # map from bsd types to iw types |
| self.apmode = device_type in ('ap', 'hostap') |
| if not self.apmode: |
| self.station['type'] = device_type |
| self.phytype = { |
| 'sta' : 'managed', |
| 'monitor' : 'monitor', |
| 'adhoc' : 'adhoc', |
| 'ibss' : 'ibss', |
| 'ap' : 'managed', # NB: handled by hostapd |
| 'hostap' : 'managed', # NB: handled by hostapd |
| 'mesh' : 'mesh', |
| 'wds' : 'wds', |
| }[device_type] |
| |
| |
| def destroy(self, params={}): |
| """Destroy a previously created device. |
| |
| @param params dict of site_wifitest parameters. |
| |
| """ |
| self.deconfig(params) |
| self.hostapd['conf'] = self.default_config.copy() |
| |
| |
| def has_local_server(self): |
| """@return True iff this router has local servers configured.""" |
| return bool(self.local_servers) |
| |
| |
| def cleanup(self, params): |
| """Clean up any resources in use. |
| |
| @param params dict of site_wifitest parameters. |
| |
| """ |
| # For linux, this is a no-op |
| pass |
| |
| |
| def get_hostapd_start_command(self, log_file, pid_file, conf_file): |
| return '%s -dd -t -P %s %s &> %s &' % ( |
| self.cmd_hostapd, pid_file, conf_file, log_file) |
| |
| |
| def start_hostapd(self, conf, params): |
| """Start a hostapd instance described by conf. |
| |
| @param conf dict of hostapd configuration parameters. |
| @param params dict of site_wifitest parameters. |
| |
| """ |
| logging.info('Starting hostapd with parameters: %r', conf) |
| # Figure out the correct interface. |
| interface = self._get_wlanif(self.hostapd['frequency'], |
| self.phytype, |
| mode=conf.get('hw_mode', 'b')) |
| |
| conf_file = self.hostapd['config_file'] % interface |
| log_file = self.hostapd['log_file'] % interface |
| pid_file = self.hostapd['pid_file'] % interface |
| conf['interface'] = interface |
| |
| # Generate hostapd.conf. |
| self._pre_config_hook(conf) |
| self.router.run("cat <<EOF >%s\n%s\nEOF\n" % |
| (conf_file, '\n'.join( |
| "%s=%s" % kv for kv in conf.iteritems()))) |
| |
| # Run hostapd. |
| logging.info("Starting hostapd...") |
| self.router.run('rm %s' % log_file, ignore_status=True) |
| self.router.run('rm %s' % pid_file, ignore_status=True) |
| self._pre_start_hook(params) |
| start_command = self.get_hostapd_start_command( |
| log_file, pid_file, conf_file) |
| self.router.run(start_command) |
| self.hostapd_instances.append({ |
| 'conf_file': conf_file, |
| 'log_file': log_file, |
| 'interface': interface, |
| 'pid_file': pid_file |
| }) |
| |
| |
| def _kill_process_instance(self, process, instance=None, wait=0): |
| """Kill a process on the router. |
| |
| Kills program named |process|, optionally only a specific |
| |instance|. If |wait| is specified, we makes sure |process| exits |
| before returning. |
| |
| @param process string name of process to kill. |
| @param instance string instance of process to kill. |
| @param wait int timeout in seconds to wait for. |
| |
| """ |
| if instance: |
| search_arg = '-f "%s.*%s"' % (process, instance) |
| else: |
| search_arg = process |
| |
| cmd = "pkill %s >/dev/null 2>&1" % search_arg |
| |
| if wait: |
| cmd += (" && while pgrep %s &> /dev/null; do sleep 1; done" % |
| search_arg) |
| self.router.run(cmd, timeout=wait, ignore_status=True) |
| else: |
| self.router.run(cmd, ignore_status=True) |
| |
| |
| def kill_hostapd_instance(self, instance): |
| """Kills a hostapd instance. |
| |
| @param instance string instance to kill. |
| |
| """ |
| self._kill_process_instance('hostapd', instance, 30) |
| |
| |
| def kill_hostapd(self): |
| """Kill all hostapd instances.""" |
| self.kill_hostapd_instance(None) |
| |
| |
| def __get_default_hostap_config(self): |
| """@return dict of default options for hostapd.""" |
| conf = self.hostapd['conf'] |
| # default RTS and frag threshold to ``off'' |
| conf['rts_threshold'] = '2347' |
| conf['fragm_threshold'] = '2346' |
| conf['driver'] = self.hostapd['driver'] |
| conf['ssid'] = self._build_ssid('') |
| return conf |
| |
| |
| def _build_ssid(self, suffix): |
| unique_salt = ''.join([random.choice(self.SUFFIX_LETTERS) |
| for x in range(5)]) |
| return (self.ssid_prefix + unique_salt + suffix)[-32:] |
| |
| |
| def hostap_configure(self, configuration, multi_interface=None): |
| """Build up a hostapd configuration file and start hostapd. |
| |
| Also setup a local server if this router supports them. |
| |
| @param configuration HosetapConfig object. |
| @param multi_interface bool True iff multiple interfaces allowed. |
| |
| """ |
| if multi_interface is None and (self.hostapd['configured'] or |
| self.station['configured']): |
| self.deconfig() |
| # Start with the default hostapd config parameters. |
| conf = self.__get_default_hostap_config() |
| conf['ssid'] = (configuration.ssid or |
| self._build_ssid(configuration.ssid_suffix)) |
| if configuration.bssid: |
| conf['bssid'] = configuration.bssid |
| conf['channel'] = configuration.channel |
| self.hostapd['frequency'] = configuration.frequency |
| conf['hw_mode'] = configuration.hw_mode |
| if configuration.hide_ssid: |
| conf['ignore_broadcast_ssid'] = 1 |
| if configuration.is_11n: |
| conf['ieee80211n'] = 1 |
| conf['ht_capab'] = configuration.hostapd_ht_capabilities |
| if configuration.wmm_enabled: |
| conf['wmm_enabled'] = 1 |
| if configuration.require_ht: |
| conf['require_ht'] = 1 |
| if configuration.beacon_interval: |
| conf['beacon_int'] = configuration.beacon_interval |
| if configuration.dtim_period: |
| conf['dtim_period'] = configuration.dtim_period |
| if configuration.frag_threshold: |
| conf['fragm_threshold'] = configuration.frag_threshold |
| if configuration.pmf_support: |
| conf['ieee80211w'] = configuration.pmf_support |
| if configuration.obss_interval: |
| conf['obss_interval'] = configuration.obss_interval |
| conf.update(configuration.get_security_hostapd_conf()) |
| |
| # TODO(wiley): Remove this multi_interface flag when the bridge router |
| # class is gone. |
| params = {'multi_interface': 1} if multi_interface else {} |
| self.start_hostapd(conf, params) |
| # Configure transmit power |
| tx_power_params = {'interface': conf['interface']} |
| # TODO(wiley) support for setting transmit power |
| self.set_txpower(tx_power_params) |
| if self.force_local_server: |
| self.start_local_server(conf['interface']) |
| self._post_start_hook(params) |
| logging.info('AP configured.') |
| self.hostapd['configured'] = True |
| |
| |
| def hostap_config(self, params): |
| """Configure the AP per test requirements. |
| |
| @param params dict of site_wifitest parameters. |
| |
| """ |
| # keep parameter modifications local-only |
| orig_params = params |
| params = params.copy() |
| |
| multi_interface = 'multi_interface' in params |
| if multi_interface: |
| # remove non-hostapd config item from params |
| params.pop('multi_interface') |
| elif self.hostapd['configured'] or self.station['configured']: |
| self.deconfig() |
| |
| local_server = params.pop('local_server', False) |
| |
| conf = self.__get_default_hostap_config() |
| tx_power_params = {} |
| htcaps = set() |
| |
| for k, v in params.iteritems(): |
| if k == 'ssid': |
| conf['ssid'] = v |
| elif k == 'ssid_suffix': |
| conf['ssid'] = self._build_ssid(v) |
| elif k == 'channel': |
| freq = int(v) |
| self.hostapd['frequency'] = freq |
| |
| # 2.4GHz |
| if freq <= 2484: |
| # Make sure hw_mode is set |
| if conf.get('hw_mode') == 'a': |
| conf['hw_mode'] = 'g' |
| |
| # Freq = 5 * chan + 2407, except channel 14 |
| if freq == 2484: |
| conf['channel'] = 14 |
| else: |
| conf['channel'] = (freq - 2407) / 5 |
| # 5GHz |
| else: |
| # Make sure hw_mode is set |
| conf['hw_mode'] = 'a' |
| # Freq = 5 * chan + 4000 |
| if freq < 5000: |
| conf['channel'] = (freq - 4000) / 5 |
| # Freq = 5 * chan + 5000 |
| else: |
| conf['channel'] = (freq - 5000) / 5 |
| |
| elif k == 'country': |
| conf['country_code'] = v |
| elif k == 'dotd': |
| conf['ieee80211d'] = 1 |
| elif k == '-dotd': |
| conf['ieee80211d'] = 0 |
| elif k == 'mode': |
| if v == '11a': |
| conf['hw_mode'] = 'a' |
| elif v == '11g': |
| conf['hw_mode'] = 'g' |
| elif v == '11b': |
| conf['hw_mode'] = 'b' |
| elif v == '11n': |
| conf['ieee80211n'] = 1 |
| elif k == 'bintval': |
| conf['beacon_int'] = v |
| elif k == 'dtimperiod': |
| conf['dtim_period'] = v |
| elif k == 'rtsthreshold': |
| conf['rts_threshold'] = v |
| elif k == 'fragthreshold': |
| conf['fragm_threshold'] = v |
| elif k == 'shortpreamble': |
| conf['preamble'] = 1 |
| elif k == 'authmode': |
| if v == "open": |
| conf['auth_algs'] = 1 |
| elif v == "shared": |
| conf['auth_algs'] = 2 |
| elif k == 'hidessid': |
| conf['ignore_broadcast_ssid'] = 1 |
| elif k == 'wme': |
| conf['wmm_enabled'] = 1 |
| elif k == '-wme': |
| conf['wmm_enabled'] = 0 |
| elif k == 'deftxkey': |
| conf['wep_default_key'] = v |
| elif k == 'ht20': |
| htcaps.add('') # NB: ensure 802.11n setup below |
| conf['wmm_enabled'] = 1 |
| elif k == 'ht40': |
| htcaps.add('[HT40-]') |
| htcaps.add('[HT40+]') |
| conf['wmm_enabled'] = 1 |
| elif k in ('ht40+', 'ht40-'): |
| htcaps.add('[%s]' % k.upper()) |
| conf['wmm_enabled'] = 1 |
| elif k == 'shortgi': |
| htcaps.add('[SHORT-GI-20]') |
| htcaps.add('[SHORT-GI-40]') |
| elif k == 'pureg': |
| pass # TODO(sleffler) need hostapd support |
| elif k == 'puren': |
| pass # TODO(sleffler) need hostapd support |
| elif k == 'protmode': |
| pass # TODO(sleffler) need hostapd support |
| elif k == 'ht': |
| htcaps.add('') # NB: ensure 802.11n setup below |
| elif k == 'htprotmode': |
| pass # TODO(sleffler) need hostapd support |
| elif k == 'rifs': |
| pass # TODO(sleffler) need hostapd support |
| elif k == 'wepmode': |
| pass # NB: meaningless for hostapd; ignore |
| elif k == '-ampdu': |
| pass # TODO(sleffler) need hostapd support |
| elif k == 'txpower': |
| tx_power_params['power'] = v |
| else: |
| conf[k] = v |
| |
| # Aggregate ht_capab. |
| if htcaps: |
| conf['ieee80211n'] = 1 |
| conf['ht_capab'] = ''.join(htcaps) |
| |
| self.start_hostapd(conf, orig_params) |
| |
| # Configure transmit power |
| tx_power_params['interface'] = conf['interface'] |
| self.set_txpower(tx_power_params) |
| |
| if self.force_local_server or local_server is not False: |
| self.start_local_server(conf['interface']) |
| |
| self._post_start_hook(orig_params) |
| |
| logging.info("AP configured.") |
| self.hostapd['configured'] = True |
| |
| |
| @staticmethod |
| def ip_addr(netblock, idx): |
| """Simple IPv4 calculator. |
| |
| Takes host address in "IP/bits" notation and returns netmask, broadcast |
| address as well as integer offsets into the address range. |
| |
| @param netblock string host address in "IP/bits" notation. |
| @param idx string describing what to return. |
| @return string containing something you hopefully requested. |
| |
| """ |
| addr_str,bits = netblock.split('/') |
| addr = map(int, addr_str.split('.')) |
| mask_bits = (-1 << (32-int(bits))) & 0xffffffff |
| mask = [(mask_bits >> s) & 0xff for s in range(24, -1, -8)] |
| if idx == 'local': |
| return addr_str |
| elif idx == 'netmask': |
| return '.'.join(map(str, mask)) |
| elif idx == 'broadcast': |
| offset = [m ^ 0xff for m in mask] |
| else: |
| offset = [(idx >> s) & 0xff for s in range(24, -1, -8)] |
| return '.'.join(map(str, [(a & m) + o |
| for a, m, o in zip(addr, mask, offset)])) |
| |
| |
| def ibss_configure(self, config): |
| """Configure a station based AP in IBSS mode. |
| |
| Extract relevant configuration objects from |config| despite not |
| actually being a hostap managed endpoint. |
| |
| @param config HostapConfig object. |
| |
| """ |
| if self.station['configured'] or self.hostapd['configured']: |
| self.deconfig() |
| interface = self._get_wlanif(config.frequency, self.phytype, |
| config.hw_mode) |
| self.station['conf']['ssid'] = (config.ssid or |
| self._build_ssid(config.ssid_suffix)) |
| # Connect the station |
| self.router.run('%s link set %s up' % (self.cmd_ip, interface)) |
| self.router.run('%s dev %s ibss join %s %d' % ( |
| self.cmd_iw, interface, self.station['conf']['ssid'], |
| config.frequency)) |
| # Always start a local server. |
| self.start_local_server(interface) |
| # Remember that this interface is up. |
| self.station['configured'] = True |
| self.station['interface'] = interface |
| |
| |
| def local_server_address(self, index): |
| """Get the local server address for an interface. |
| |
| When we multiple local servers, we give them static IP addresses |
| like 192.168.*.254. |
| |
| @param index int describing which local server this is for. |
| |
| """ |
| return '%d.%d.%d.%d' % (self.SUBNET_PREFIX_OCTETS + (index, 254)) |
| |
| |
| def start_local_server(self, interface): |
| """Start a local server on an interface. |
| |
| @param interface string (e.g. wlan0) |
| |
| """ |
| logging.info("Starting up local server...") |
| |
| if len(self.local_servers) >= 256: |
| raise error.TestFail('Exhausted available local servers') |
| |
| netblock = '%s/24' % self.local_server_address(len(self.local_servers)) |
| |
| params = {} |
| params['netblock'] = netblock |
| params['subnet'] = self.ip_addr(netblock, 0) |
| params['netmask'] = self.ip_addr(netblock, 'netmask') |
| params['dhcp_range'] = ' '.join( |
| (self.ip_addr(netblock, self.dhcp_low), |
| self.ip_addr(netblock, self.dhcp_high))) |
| params['interface'] = interface |
| |
| params['ip_params'] = ("%s broadcast %s dev %s" % |
| (netblock, |
| self.ip_addr(netblock, 'broadcast'), |
| interface)) |
| self.local_servers.append(params) |
| |
| self.router.run("%s addr flush %s" % |
| (self.cmd_ip, interface)) |
| self.router.run("%s addr add %s" % |
| (self.cmd_ip, params['ip_params'])) |
| self.router.run("%s link set %s up" % |
| (self.cmd_ip, interface)) |
| self.start_dhcp_server(interface) |
| |
| |
| def start_dhcp_server(self, interface): |
| """Start a dhcp server on an interface. |
| |
| @param interface string (e.g. wlan0) |
| |
| """ |
| conf_file = self.dhcpd_conf % interface |
| dhcp_conf = '\n'.join(map( |
| lambda server_conf: \ |
| "subnet %(subnet)s netmask %(netmask)s {\n" \ |
| " range %(dhcp_range)s;\n" \ |
| "}" % server_conf, |
| self.local_servers)) |
| self.router.run("cat <<EOF >%s\n%s\nEOF\n" % |
| (conf_file, |
| '\n'.join(('ddns-update-style none;', dhcp_conf)))) |
| self.router.run("touch %s" % self.dhcpd_leases) |
| |
| self.router.run("pkill dhcpd >/dev/null 2>&1", ignore_status=True) |
| self.router.run("%s -q -cf %s -lf %s" % |
| (self.cmd_dhcpd, conf_file, self.dhcpd_leases)) |
| |
| |
| def stop_dhcp_server(self, instance=None): |
| """Stop a dhcp server on the router. |
| |
| @param instance string instance to kill. |
| |
| """ |
| self._kill_process_instance('dhcpd', instance, 0) |
| |
| |
| def stop_dhcp_servers(self): |
| """Stop all dhcp servers on the router.""" |
| self.stop_dhcp_server(None) |
| |
| |
| def config(self, params): |
| """Configure an AP based on site_wifitest parameters. |
| |
| @param params dict of site_wifitest parameters. |
| |
| """ |
| if self.apmode: |
| self.hostap_config(params) |
| else: |
| config = hostap_config.HostapConfig( |
| frequency=int(params.get('channel', None))) |
| self.ibss_configure(config) |
| |
| |
| def get_wifi_ip(self, ap_num): |
| """Return IP address on the WiFi subnet of a local server on the router. |
| |
| If no local servers are configured (e.g. for an RSPro), a TestFail will |
| be raised. |
| |
| @param ap_num int which local server to get an address from. |
| |
| """ |
| if self.local_servers: |
| return self.ip_addr(self.local_servers[ap_num]['netblock'], |
| 'local') |
| else: |
| raise error.TestFail("No IP address assigned") |
| |
| |
| def get_hostapd_mac(self, ap_num): |
| """Return the MAC address of an AP in the test. |
| |
| @param ap_num int index of local server to read the MAC address from. |
| @return string MAC address like 00:11:22:33:44:55. |
| |
| """ |
| instance = self.hostapd_instances[ap_num] |
| interface = instance['interface'] |
| result = self.router.run('%s addr show %s' % (self.cmd_ip, interface)) |
| # Example response: |
| # 1: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 UP qlen 1000 |
| # link/ether 99:88:77:66:55:44 brd ff:ff:ff:ff:ff:ff |
| # inet 10.0.0.1/8 brd 10.255.255.255 scope global eth0 |
| # inet6 fe80::6a7f:74ff:fe66:5544/64 scope link |
| # we want the MAC address after the "link/ether" above. |
| parts = result.stdout.split(' ') |
| return parts[parts.index('link/ether') + 1] |
| |
| |
| def deconfig(self, params={}): |
| """De-configure the AP (will also bring wlan down). |
| |
| @param params dict of parameters from site_wifitest. |
| |
| """ |
| if not self.hostapd['configured'] and not self.station['configured']: |
| return |
| |
| if self.hostapd['configured']: |
| local_servers = [] |
| if 'instance' in params: |
| instances = [ self.hostapd_instances.pop(params['instance']) ] |
| for server in self.local_servers: |
| if server['interface'] == instances[0]['interface']: |
| local_servers = [server] |
| self.local_servers.remove(server) |
| break |
| else: |
| instances = self.hostapd_instances |
| self.hostapd_instances = [] |
| local_servers = self.local_servers |
| self.local_servers = [] |
| |
| for instance in instances: |
| if 'silent' in params: |
| # Deconfigure without notifying DUT. Remove the interface |
| # hostapd uses to send beacon and DEAUTH packets. |
| self._remove_interface(instance['interface'], True) |
| |
| self.kill_hostapd_instance(instance['conf_file']) |
| if wifi_test_utils.is_installed(self.host, |
| instance['log_file']): |
| self.router.get_file(instance['log_file'], |
| 'debug/hostapd_router_%d_%s.log' % |
| (self.hostapd['log_count'], |
| instance['interface'])) |
| else: |
| logging.error('Did not collect hostapd log file because ' |
| 'it was missing.') |
| self._release_wlanif(instance['interface']) |
| # self.router.run("rm -f %(log_file)s %(conf_file)s" % instance) |
| self.hostapd['log_count'] += 1 |
| if self.station['configured']: |
| local_servers = self.local_servers |
| self.local_servers = [] |
| if self.station['type'] == 'ibss': |
| self.router.run("%s dev %s ibss leave" % |
| (self.cmd_iw, self.station['interface'])) |
| else: |
| self.router.run("%s dev %s disconnect" % |
| (self.cmd_iw, self.station['interface'])) |
| self.router.run("%s link set %s down" % (self.cmd_ip, |
| self.station['interface'])) |
| |
| for server in local_servers: |
| self.stop_dhcp_server(server['interface']) |
| self.router.run("%s addr del %s" % |
| (self.cmd_ip, server['ip_params']), |
| ignore_status=True) |
| |
| self.hostapd['configured'] = False |
| self.station['configured'] = False |
| |
| |
| def verify_pmksa_auth(self, params): |
| """Verify that the PMKSA auth was cached on a hostapd instance. |
| |
| @param params dict with optional key 'instance' (defaults to 0). |
| |
| """ |
| instance_num = params.get('instance', 0) |
| instance = self.hostapd_instances[instance_num] |
| pmksa_match = 'PMK from PMKSA cache - skip IEEE 802.1X.EAP' |
| self.router.run('grep -q "%s" %s' % (pmksa_match, instance['log_file'])) |
| |
| |
| def get_ssid(self): |
| """@return string ssid for the network stemming from this router.""" |
| if self.hostapd['configured']: |
| return self.hostapd['conf']['ssid'] |
| |
| if not 'ssid' in self.station['conf']: |
| raise error.TestFail('Requested ssid of an unconfigured AP.') |
| |
| return self.station['conf']['ssid'] |
| |
| |
| def set_txpower(self, params): |
| """Set the transmission power for an interface. |
| |
| Assumes that we want to refer to the first hostapd instance unless |
| 'interface' is defined in params. Sets the transmission power to |
| 'auto' if 'power' is not defined in params. |
| |
| @param params dict of parameters as described above. |
| |
| """ |
| interface = params.get('interface', |
| self.hostapd_instances[0]['interface']) |
| power = params.get('power', 'auto') |
| self.router.run("%s dev %s set txpower %s" % |
| (self.cmd_iw, interface, power)) |
| |
| |
| def deauth(self, params): |
| """Deauthenticates a client described in params. |
| |
| @param params dict containing a key 'client'. |
| |
| """ |
| self.router.run('%s -p%s deauthenticate %s' % |
| (self.cmd_hostapd_cli, |
| self.hostapd['conf']['ctrl_interface'], |
| params['client'])) |
| |
| |
| def send_management_frame(self, frame_type, instance=0): |
| """Injects a management frame into an active hostapd session. |
| |
| @param frame_type string the type of frame to send. |
| @param instance int indicating which hostapd instance to inject into. |
| |
| """ |
| hostap_interface = self.hostapd_instances[instance]['interface'] |
| interface = self._get_wlanif(0, 'monitor', same_phy_as=hostap_interface) |
| self.router.run("%s link set %s up" % (self.cmd_ip, interface)) |
| self.router.run('%s %s %s' % |
| (self.cmd_send_management_frame, interface, frame_type)) |
| self._release_wlanif(interface) |
| |
| |
| def detect_client_deauth(self, client_mac, instance=0): |
| """Detects whether hostapd has logged a deauthentication from |
| |client_mac|. |
| |
| @param client_mac string the MAC address of the client to detect. |
| @param instance int indicating which hostapd instance to query. |
| |
| """ |
| interface = self.hostapd_instances[instance]['interface'] |
| deauth_msg = "%s: deauthentication: STA=%s" % (interface, client_mac) |
| log_file = self.hostapd_instances[instance]['log_file'] |
| result = self.router.run("grep -qi '%s' %s" % (deauth_msg, log_file), |
| ignore_status=True) |
| return result.exit_status == 0 |
| |
| |
| def detect_client_coexistence_report(self, client_mac, instance=0): |
| """Detects whether hostapd has logged an action frame from |
| |client_mac| indicating information about 20/40MHz BSS coexistence. |
| |
| @param client_mac string the MAC address of the client to detect. |
| @param instance int indicating which hostapd instance to query. |
| |
| """ |
| coex_msg = ('nl80211: MLME event frame - hexdump(len=.*): ' |
| '.. .. .. .. .. .. .. .. .. .. %s ' |
| '.. .. .. .. .. .. .. .. 04 00.*48 01 ..' % |
| ' '.join(client_mac.split(':'))) |
| log_file = self.hostapd_instances[instance]['log_file'] |
| result = self.router.run("grep -qi '%s' %s" % (coex_msg, log_file), |
| ignore_status=True) |
| return result.exit_status == 0 |
| |
| |
| def _pre_config_hook(self, config): |
| """Hook for subclasses. |
| |
| Run after gathering configuration parameters, |
| but before writing parameters to config file. |
| |
| @param config dict containing hostapd config parameters. |
| |
| """ |
| pass |
| |
| |
| def _pre_start_hook(self, params): |
| """Hook for subclasses. |
| |
| Run after generating hostapd config file, but before starting hostapd. |
| |
| @param params dict parameters from site_wifitest. |
| |
| """ |
| pass |
| |
| |
| def _post_start_hook(self, params): |
| """Hook for subclasses run after starting hostapd. |
| |
| @param params dict parameters from site_wifitest. |
| |
| """ |
| pass |
