'802.11a - 5 GHz', 'b' => '802.11b - 2.4 GHz', 'g' => '802.11g - 2.4 GHz', 'n' => '802.11n - 2.4 GHz', 'ac' => '802.11.ac - 5 GHz' ]; $arrSecurity = array(1 => 'WPA', 2 => 'WPA2', 3 => 'WPA+WPA2', 'none' => _("None")); $arrEncType = array('TKIP' => 'TKIP', 'CCMP' => 'CCMP', 'TKIP CCMP' => 'TKIP+CCMP'); $arrTxPower = getDefaultNetOpts('txpower','dbm'); $managedModeEnabled = false; exec("ip -o link show | awk -F': ' '{print $2}'", $interfaces); sort($interfaces); exec("iw reg get | awk '/country / { sub(/:/,\"\",$2); print $2 }'", $country_code); $cmd = "iw dev ".$_SESSION['ap_interface']." info | awk '$1==\"txpower\" {print $2}'"; exec($cmd, $txpower); $txpower = intval($txpower[0]); if (!RASPI_MONITOR_ENABLED) { if (isset($_POST['SaveHostAPDSettings'])) { SaveHostAPDConfig($arrSecurity, $arrEncType, $arr80211Standard, $interfaces, $status); } } $arrHostapdConf = parse_ini_file('/etc/raspap/hostapd.ini'); if (!RASPI_MONITOR_ENABLED) { if (isset($_POST['StartHotspot']) || isset($_POST['RestartHotspot'])) { $status->addMessage('Attempting to start hotspot', 'info'); if ($arrHostapdConf['BridgedEnable'] == 1) { exec('sudo /etc/raspap/hostapd/servicestart.sh --interface br0 --seconds 3', $return); } elseif ($arrHostapdConf['WifiAPEnable'] == 1) { exec('sudo /etc/raspap/hostapd/servicestart.sh --interface uap0 --seconds 3', $return); } else { exec('sudo /etc/raspap/hostapd/servicestart.sh --seconds 3', $return); } foreach ($return as $line) { $status->addMessage($line, 'info'); } } elseif (isset($_POST['StopHotspot'])) { $status->addMessage('Attempting to stop hotspot', 'info'); exec('sudo /bin/systemctl stop hostapd.service', $return); foreach ($return as $line) { $status->addMessage($line, 'info'); } } } exec('cat '. RASPI_HOSTAPD_CONFIG, $hostapdconfig); exec('iwgetid '. escapeshellarg($_POST['interface']). ' -r', $wifiNetworkID); if (!empty($wifiNetworkID[0])) { $managedModeEnabled = true; } $hostapdstatus = $system->hostapdStatus(); $serviceStatus = $hostapdstatus[0] == 0 ? "down" : "up"; foreach ($hostapdconfig as $hostapdconfigline) { if (strlen($hostapdconfigline) === 0) { continue; } if ($hostapdconfigline[0] != "#") { $arrLine = explode("=", $hostapdconfigline); $arrConfig[$arrLine[0]]=$arrLine[1]; } }; // assign beacon_int boolean if value is set if (isset($arrConfig['beacon_int'])) { $arrConfig['beacon_interval_bool'] = 1; } // assign disassoc_low_ack boolean if value is set if (isset($arrConfig['disassoc_low_ack'])) { $arrConfig['disassoc_low_ack_bool'] = 1; } // assign country_code from iw reg if not set in config if (!isset($arrConfig['country_code']) && isset($country_code[0])) { $arrConfig['country_code'] = $country_code[0]; } // set txpower with iw if value is non-default ('auto') if (isset($_POST['txpower']) && ($_POST['txpower'] != 'auto')) { $sdBm = $_POST['txpower'] * 100; exec('sudo /sbin/iw dev '.$_POST['interface'].' set txpower fixed '.$sdBm, $return); $status->addMessage('Setting transmit power to '.$_POST['txpower'].' dBm.', 'success'); $txpower = $_POST['txpower']; } elseif ($_POST['txpower'] == 'auto') { exec('sudo /sbin/iw dev '.$_POST['interface'].' set txpower auto', $return); $status->addMessage('Setting transmit power to '.$_POST['txpower'].'.', 'success'); $txpower = $_POST['txpower']; } echo renderTemplate( "hostapd", compact( "status", "serviceStatus", "hostapdstatus", "managedModeEnabled", "interfaces", "arrConfig", "arr80211Standard", "selectedHwMode", "arrSecurity", "arrEncType", "arrTxPower", "txpower", "arrHostapdConf" ) ); } /** * Validate user input, save configs for hostapd, dnsmasq & dhcp * * @param array $wpa_array * @param array $enc_types * @param array $modes * @param string $interface * @param object $status * @return boolean */ function SaveHostAPDConfig($wpa_array, $enc_types, $modes, $interfaces, $status) { // It should not be possible to send bad data for these fields so clearly // someone is up to something if they fail. Fail silently. if (!(array_key_exists($_POST['wpa'], $wpa_array) && array_key_exists($_POST['wpa_pairwise'], $enc_types) && array_key_exists($_POST['hw_mode'], $modes)) ) { error_log("Attempting to set hostapd config with wpa='".$_POST['wpa']."', wpa_pairwise='".$_POST['wpa_pairwise']."' and hw_mode='".$_POST['hw_mode']."'"); // FIXME: log injection return false; } // Validate input $good_input = true; if (!filter_var($_POST['channel'], FILTER_VALIDATE_INT)) { $status->addMessage('Attempting to set channel to invalid number.', 'danger'); $good_input = false; } if (intval($_POST['channel']) < 1 || intval($_POST['channel']) > RASPI_5GHZ_MAX_CHANNEL) { $status->addMessage('Attempting to set channel outside of permitted range', 'danger'); $good_input = false; } $arrHostapdConf = parse_ini_file('/etc/raspap/hostapd.ini'); // Check for Bridged AP mode checkbox $bridgedEnable = 0; if ($arrHostapdConf['BridgedEnable'] == 0) { if (isset($_POST['bridgedEnable'])) { $bridgedEnable = 1; } } else { if (isset($_POST['bridgedEnable'])) { $bridgedEnable = 1; } } // Check for WiFi client AP mode checkbox $wifiAPEnable = 0; if ($bridgedEnable == 0) { // enable client mode actions when not bridged if ($arrHostapdConf['WifiAPEnable'] == 0) { if (isset($_POST['wifiAPEnable'])) { $wifiAPEnable = 1; } } else { if (isset($_POST['wifiAPEnable'])) { $wifiAPEnable = 1; } } } // Check for Logfile output checkbox $logEnable = 0; if ($arrHostapdConf['LogEnable'] == 0) { if (isset($_POST['logEnable'])) { $logEnable = 1; exec('sudo '.RASPI_CONFIG.'/hostapd/enablelog.sh'); } else { exec('sudo '.RASPI_CONFIG.'/hostapd/disablelog.sh'); } } else { if (isset($_POST['logEnable'])) { $logEnable = 1; exec('sudo '.RASPI_CONFIG.'/hostapd/enablelog.sh'); } else { exec('sudo '.RASPI_CONFIG.'/hostapd/disablelog.sh'); } } // set AP interface default, override for ap-sta & bridged options $ap_iface = $_POST['interface']; // the hostap AP interface $cli_iface = $_POST['interface']; // the wifi client interface $session_iface = $_POST['interface']; // the interface that the UI needs to monitor for data usage etc. if ($wifiAPEnable) { // for AP-STA we monitor the uap0 interface, which is always the ap interface. $ap_iface = 'uap0'; $session_iface = 'uap0'; } if ($bridgedEnable) { // for bridged mode we monitor the bridge, but keep the selected interface as AP. $session_iface = 'br0'; $cli_iface = 'br0'; } // persist user options to /etc/raspap $cfg = []; $cfg['WifiInterface'] = $ap_iface; $cfg['LogEnable'] = $logEnable; // Save previous Client mode status when Bridged $cfg['WifiAPEnable'] = ($bridgedEnable == 1 ? $arrHostapdConf['WifiAPEnable'] : $wifiAPEnable); $cfg['BridgedEnable'] = $bridgedEnable; $cfg['WifiManaged'] = $cli_iface; write_php_ini($cfg, RASPI_CONFIG.'/hostapd.ini'); $_SESSION['ap_interface'] = $session_iface; // Verify input if (empty($_POST['ssid']) || strlen($_POST['ssid']) > 32) { // Not sure of all the restrictions of SSID $status->addMessage('SSID must be between 1 and 32 characters', 'danger'); $good_input = false; } # NB: A pass-phrase is a sequence of between 8 and 63 ASCII-encoded characters (IEEE Std. 802.11i-2004) # Each character in the pass-phrase must have an encoding in the range of 32 to 126 (decimal). (IEEE Std. 802.11i-2004, Annex H.4.1) if ($_POST['wpa'] !== 'none' && (strlen($_POST['wpa_passphrase']) < 8 || strlen($_POST['wpa_passphrase']) > 63)) { $status->addMessage('WPA passphrase must be between 8 and 63 characters', 'danger'); $good_input = false; } elseif (!ctype_print($_POST['wpa_passphrase'])) { $status->addMessage('WPA passphrase must be comprised of printable ASCII characters', 'danger'); $good_input = false; } if (isset($_POST['hiddenSSID'])) { if (!is_int((int)$_POST['hiddenSSID'])) { $status->addMessage('Parameter hiddenSSID not a number.', 'danger'); $good_input = false; } elseif ((int)$_POST['hiddenSSID'] < 0 || (int)$_POST['hiddenSSID'] >= 3) { $status->addMessage('Parameter hiddenSSID contains invalid configuratie value.', 'danger'); $good_input = false; } else { $ignore_broadcast_ssid = $_POST['hiddenSSID']; } } else { $ignore_broadcast_ssid = '0'; } if (! in_array($_POST['interface'], $interfaces)) { // The user is probably up to something here but it may also be a // genuine error. $status->addMessage('Unknown interface '.htmlspecialchars($_POST['interface'], ENT_QUOTES), 'danger'); $good_input = false; } if (strlen($_POST['country_code']) !== 0 && strlen($_POST['country_code']) != 2) { $status->addMessage('Country code must be blank or two characters', 'danger'); $good_input = false; } if (isset($_POST['beaconintervalEnable'])) { if (!is_numeric($_POST['beacon_interval'])) { $status->addMessage('Beacon interval must be a numeric value', 'danger'); $good_input = false; } elseif ($_POST['beacon_interval'] < 15 || $_POST['beacon_interval'] > 65535) { $status->addMessage('Beacon interval must be between 15 and 65535', 'danger'); $good_input = false; } } $_POST['max_num_sta'] = (int) $_POST['max_num_sta']; $_POST['max_num_sta'] = $_POST['max_num_sta'] > 2007 ? 2007 : $_POST['max_num_sta']; $_POST['max_num_sta'] = $_POST['max_num_sta'] < 1 ? null : $_POST['max_num_sta']; if ($good_input) { $return = updateHostapdConfig($ignore_broadcast_ssid,$wifiAPEnable,$bridgedEnable); // Fetch dhcp-range, lease time from system config $syscfg = parse_ini_file(RASPI_DNSMASQ_PREFIX.$ap_iface.'.conf', false, INI_SCANNER_RAW); if ($wifiAPEnable == 1) { // Enable uap0 configuration for ap-sta mode // Set dhcp-range from system config, fallback to default if undefined $dhcp_range = ($syscfg['dhcp-range'] == '') ? getDefaultNetValue('dnsmasq','uap0','dhcp-range') : $syscfg['dhcp-range']; $config = [ '# RaspAP uap0 configuration' ]; $config[] = 'interface=lo,uap0 # Enable uap0 interface for wireless client AP mode'; $config[] = 'bind-dynamic # Hybrid between --bind-interfaces and default'; $config[] = 'server=8.8.8.8 # Forward DNS requests to Google DNS'; $config[] = 'domain-needed # Don\'t forward short names'; $config[] = 'bogus-priv # Never forward addresses in the non-routed address spaces'; $config[] = 'dhcp-range='.$dhcp_range; if (!empty($syscfg['dhcp-option'])) { $config[] = 'dhcp-option='.$syscfg['dhcp-option']; } $config[] = PHP_EOL; scanConfigDir('/etc/dnsmasq.d/','uap0',$status); $config = join(PHP_EOL, $config); file_put_contents("/tmp/dnsmasqdata", $config); system('sudo cp /tmp/dnsmasqdata '.RASPI_DNSMASQ_PREFIX.$ap_iface.'.conf', $return); } elseif ($bridgedEnable !==1) { $dhcp_range = ($syscfg['dhcp-range'] =='') ? getDefaultNetValue('dnsmasq','wlan0','dhcp-range') : $syscfg['dhcp-range']; $config = [ '# RaspAP '.$_POST['interface'].' configuration' ]; $config[] = 'interface='.$_POST['interface']; $config[] = 'domain-needed'; $config[] = 'dhcp-range='.$dhcp_range; if (!empty($syscfg['dhcp-option'])) { $config[] = 'dhcp-option='.$syscfg['dhcp-option']; } $config[] = PHP_EOL; $config = join(PHP_EOL, $config); file_put_contents("/tmp/dnsmasqdata", $config); system('sudo cp /tmp/dnsmasqdata '.RASPI_DNSMASQ_PREFIX.$ap_iface.'.conf', $return); } // Set dhcp values from system config, fallback to default if undefined $jsonData = json_decode(getNetConfig($ap_iface), true); $ip_address = ($jsonData['StaticIP'] == '') ? getDefaultNetValue('dhcp',$ap_iface,'static ip_address') : $jsonData['StaticIP']; $domain_name_server = ($jsonData['StaticDNS'] =='') ? getDefaultNetValue('dhcp','wlan0','static domain_name_server') : $jsonData['StaticDNS']; $routers = ($jsonData['StaticRouters'] == '') ? getDefaultNetValue('dhcp',$ap_iface,'static routers') : $jsonData['StaticRouters']; $netmask = ($jsonData['SubnetMask'] == '' || $jsonData['SubnetMask'] == '0.0.0.0') ? getDefaultNetValue('dhcp',$ap_iface,'subnetmask') : $jsonData['SubnetMask']; $ip_address.= (!preg_match('/.*\/\d+/', $ip_address)) ? '/'.mask2cidr($netmask) : null; if ($bridgedEnable == 1) { $config = array_keys(getDefaultNetOpts('dhcp','options')); $config[] = PHP_EOL.'# RaspAP br0 configuration'; $config[] = 'denyinterfaces eth0 wlan0'; $config[] = 'interface br0'; $config[] = PHP_EOL; } elseif ($wifiAPEnable == 1) { $config = array_keys(getDefaultNetOpts('dhcp','options')); $config[] = PHP_EOL.'# RaspAP uap0 configuration'; $config[] = 'interface uap0'; $config[] = 'static ip_address='.$ip_address; $config[] = 'nohook wpa_supplicant'; $config[] = PHP_EOL; } else { $def_ip = array(); $config = [ '# RaspAP '.$ap_iface.' configuration' ]; $config[] = 'interface '.$ap_iface; $config[] = 'static ip_address='.$ip_address; $config[] = 'static routers='.$routers; $config[] = 'static domain_name_server='.$domain_name_server; if (! is_null($jsonData['Metric'])) { $config[] = 'metric '.$jsonData['Metric']; } } $dhcp_cfg = file_get_contents(RASPI_DHCPCD_CONFIG); if ($bridgedEnable == 1 || $wifiAPEnable == 1) { $dhcp_cfg = join(PHP_EOL, $config); $status->addMessage('DHCP configuration for '.$ap_iface.' enabled.', 'success'); } elseif (!preg_match('/^interface\s'.$ap_iface.'$/m', $dhcp_cfg)) { $config[] = PHP_EOL; $config= join(PHP_EOL, $config); $dhcp_cfg = removeDHCPIface($dhcp_cfg,'br0'); $dhcp_cfg = removeDHCPIface($dhcp_cfg,'uap0'); $dhcp_cfg .= $config; $status->addMessage('DHCP configuration for '.$ap_iface.' added.', 'success'); } else { $config = join(PHP_EOL, $config); $dhcp_cfg = removeDHCPIface($dhcp_cfg,'br0'); $dhcp_cfg = removeDHCPIface($dhcp_cfg,'uap0'); $dhcp_cfg = preg_replace('/^#\sRaspAP\s'.$ap_iface.'\s.*?(?=\s*^\s*$)/ms', $config, $dhcp_cfg, 1); $status->addMessage('DHCP configuration for '.$ap_iface.' updated.', 'success'); } file_put_contents("/tmp/dhcpddata", $dhcp_cfg); system('sudo cp /tmp/dhcpddata '.RASPI_DHCPCD_CONFIG, $return); if ($return == 0) { $status->addMessage('Wifi Hotspot settings saved', 'success'); } else { $status->addMessage('Unable to save wifi hotspot settings', 'danger'); } } else { $status->addMessage('Unable to save wifi hotspot settings', 'danger'); return false; } return true; } /** * Updates a hostapd configuration * * @return boolean $result */ function updateHostapdConfig($ignore_broadcast_ssid,$wifiAPEnable,$bridgedEnable) { // Fixed values $country_code = $_POST['country_code']; $config = 'driver=nl80211'.PHP_EOL; $config.= 'ctrl_interface='.RASPI_HOSTAPD_CTRL_INTERFACE.PHP_EOL; $config.= 'ctrl_interface_group=0'.PHP_EOL; $config.= 'auth_algs=1'.PHP_EOL; $config.= 'wpa_key_mgmt=WPA-PSK'.PHP_EOL; if (isset($_POST['beaconintervalEnable'])) { $config.= 'beacon_int='.$_POST['beacon_interval'].PHP_EOL; } if (isset($_POST['disassoc_low_ackEnable'])) { $config.= 'disassoc_low_ack=0'.PHP_EOL; } $config.= 'ssid='.$_POST['ssid'].PHP_EOL; $config.= 'channel='.$_POST['channel'].PHP_EOL; if ($_POST['hw_mode'] === 'n') { $config.= 'hw_mode=g'.PHP_EOL; $config.= 'ieee80211n=1'.PHP_EOL; // Enable basic Quality of service $config.= 'wmm_enabled=1'.PHP_EOL; } elseif ($_POST['hw_mode'] === 'ac') { $config.= 'hw_mode=a'.PHP_EOL.PHP_EOL; $config.= '# N'.PHP_EOL; $config.= 'ieee80211n=1'.PHP_EOL; $config.= 'require_ht=1'.PHP_EOL; $config.= 'ht_capab=[MAX-AMSDU-3839][HT40+][SHORT-GI-20][SHORT-GI-40][DSSS_CCK-40]'.PHP_EOL.PHP_EOL; $config.= '# AC'.PHP_EOL; $config.= 'ieee80211ac=1'.PHP_EOL; $config.= 'require_vht=1'.PHP_EOL; $config.= 'ieee80211d=0'.PHP_EOL; $config.= 'ieee80211h=0'.PHP_EOL; $config.= 'vht_capab=[MAX-AMSDU-3839][SHORT-GI-80]'.PHP_EOL; $config.= 'vht_oper_chwidth=1'.PHP_EOL; $config.= 'vht_oper_centr_freq_seg0_idx=42'.PHP_EOL.PHP_EOL; } elseif ($_POST['hw_mode'] === 'w') { $config.= 'ieee80211w=2'.PHP_EOL; $config.= 'wpa_key_mgmt=WPA-EAP-SHA256'.PHP_EOL; } else { $config.= 'hw_mode='.$_POST['hw_mode'].PHP_EOL; $config.= 'ieee80211n=0'.PHP_EOL; } if ($_POST['wpa'] !== 'none') { $config.= 'wpa_passphrase='.$_POST['wpa_passphrase'].PHP_EOL; } if ($wifiAPEnable == 1) { $config.= 'interface=uap0'.PHP_EOL; } elseif ($bridgedEnable == 1) { $config.='interface='.$_POST['interface'].PHP_EOL; $config.= 'bridge=br0'.PHP_EOL; } else { $config.= 'interface='.$_SESSION['ap_interface'].PHP_EOL; } $config.= 'wpa='.$_POST['wpa'].PHP_EOL; $config.= 'wpa_pairwise='.$_POST['wpa_pairwise'].PHP_EOL; $config.= 'country_code='.$_POST['country_code'].PHP_EOL; $config.= 'ignore_broadcast_ssid='.$ignore_broadcast_ssid.PHP_EOL; if (isset($_POST['max_num_sta'])) { $config.= 'max_num_sta='.$_POST['max_num_sta'].PHP_EOL; } file_put_contents("/tmp/hostapddata", $config); system("sudo cp /tmp/hostapddata " . RASPI_HOSTAPD_CONFIG, $result); return $result; }