0); if (!RASPI_MONITOR_ENABLED) { if (isset($_POST['startdhcpd'])) { if ($dnsmasq_state) { $status->addMessage('dnsmasq already running', 'info'); } else { exec('sudo /bin/systemctl start dnsmasq.service', $dnsmasq, $return); if ($return == 0) { $status->addMessage('Successfully started dnsmasq', 'success'); $dnsmasq_state = true; } else { $status->addMessage('Failed to start dnsmasq', 'danger'); } } } elseif (isset($_POST['stopdhcpd'])) { if ($dnsmasq_state) { exec('sudo /bin/systemctl stop dnsmasq.service', $dnsmasq, $return); if ($return == 0) { $status->addMessage('Successfully stopped dnsmasq', 'success'); $dnsmasq_state = false; } else { $status->addMessage('Failed to stop dnsmasq', 'danger'); } } else { $status->addMessage('dnsmasq already stopped', 'info'); } } } getWifiInterface(); $serviceStatus = $dnsmasq_state ? "up" : "down"; exec("ip -o link show | awk -F': ' '{print $2}'", $interfaces); exec('cat ' . RASPI_DNSMASQ_LEASES, $leases); $ap_iface = $_SESSION['ap_interface']; echo renderTemplate( "dhcp", compact( "status", "serviceStatus", "dnsmasq_state", "ap_iface", "dhcpHost", "interfaces", "leases" ) ); } /** * Saves a DHCP configuration * * @return object $status */ function saveDHCPConfig($status) { $iface = $_POST['interface']; $return = 1; // handle disable dhcp option if (!isset($_POST['dhcp-iface']) && file_exists(RASPI_DNSMASQ_PREFIX.$iface.'.conf')) { // remove dhcp + dnsmasq configs for selected interface $return = removeDHCPConfig($iface,$status); $return = removeDnsmasqConfig($iface,$status); } else { $errors = validateDHCPInput(); if (empty($errors)) { $return = updateDHCPConfig($iface,$status); } else { $status->addMessage($errors, 'danger'); } if ($return == 1) { $status->addMessage('Dnsmasq configuration failed to be updated.', 'danger'); return false; } if (($_POST['dhcp-iface'] == "1")) { $return = updateDnsmasqConfig($iface,$status); } if ($return == 0) { $status->addMessage('Dnsmasq configuration updated successfully.', 'success'); } else { $status->addMessage('Dnsmasq configuration failed to be updated.', 'danger'); return false; } return true; } } /** * Validates DHCP user input from the $_POST object * * @return string $errors */ function validateDHCPInput() { define('IFNAMSIZ', 16); $iface = $_POST['interface']; if (!preg_match('/^[a-zA-Z0-9]+$/', $iface) || strlen($iface) >= IFNAMSIZ ) { $errors .= _('Invalid interface name.').'
'.PHP_EOL; } if (!filter_var($_POST['StaticIP'], FILTER_VALIDATE_IP) && !empty($_POST['StaticIP'])) { $errors .= _('Invalid static IP address.').'
'.PHP_EOL; } if (!filter_var($_POST['SubnetMask'], FILTER_VALIDATE_IP) && !empty($_POST['SubnetMask'])) { $errors .= _('Invalid subnet mask.').'
'.PHP_EOL; } if (!filter_var($_POST['DefaultGateway'], FILTER_VALIDATE_IP) && !empty($_POST['DefaultGateway'])) { $errors .= _('Invalid default gateway.').'
'.PHP_EOL; var_dump($_POST['DefaultGateway']); die(); } if (($_POST['dhcp-iface'] == "1")) { if (!filter_var($_POST['RangeStart'], FILTER_VALIDATE_IP) && !empty($_POST['RangeStart'])) { $errors .= _('Invalid DHCP range start.').'
'.PHP_EOL; } if (!filter_var($_POST['RangeEnd'], FILTER_VALIDATE_IP) && !empty($_POST['RangeEnd'])) { $errors .= _('Invalid DHCP range end.').'
'.PHP_EOL; } if (!ctype_digit($_POST['RangeLeaseTime']) && $_POST['RangeLeaseTimeUnits'] !== 'infinite') { $errors .= _('Invalid DHCP lease time, not a number.').'
'.PHP_EOL; } if (!in_array($_POST['RangeLeaseTimeUnits'], array('m', 'h', 'd', 'infinite'))) { $errors .= _('Unknown DHCP lease time unit.').'
'.PHP_EOL; } if ($_POST['Metric'] !== '' && !ctype_digit($_POST['Metric'])) { $errors .= _('Invalid metric value, not a number.').'
'.PHP_EOL; } } return $errors; } /** * Updates a dnsmasq configuration * * @param string $iface * @param object $status * @return boolean $result */ function updateDnsmasqConfig($iface,$status) { $config = '# RaspAP '.$iface.' configuration'.PHP_EOL; $config .= 'interface='.$iface.PHP_EOL. 'dhcp-range='.$_POST['RangeStart'].','.$_POST['RangeEnd']. ',255.255.255.0,'; if ($_POST['RangeLeaseTimeUnits'] !== 'infinite') { $config .= $_POST['RangeLeaseTime']; } $config .= $_POST['RangeLeaseTimeUnits'].PHP_EOL; for ($i=0; $i < count($_POST["static_leases"]["mac"]); $i++) { $mac = trim($_POST["static_leases"]["mac"][$i]); $ip = trim($_POST["static_leases"]["ip"][$i]); if ($mac != "" && $ip != "") { $config .= "dhcp-host=$mac,$ip".PHP_EOL; } } if ($_POST['no-resolv'] == "1") { $config .= "no-resolv".PHP_EOL; } foreach ($_POST['server'] as $server) { $config .= "server=$server".PHP_EOL; } if ($_POST['log-dhcp'] == "1") { $config .= "log-dhcp".PHP_EOL; } if ($_POST['log-queries'] == "1") { $config .= "log-queries".PHP_EOL; } if ($_POST['DNS1']) { $config .= "dhcp-option=6," . $_POST['DNS1']; if ($_POST['DNS2']) { $config .= ','.$_POST['DNS2']; } $config .= PHP_EOL; } file_put_contents("/tmp/dnsmasqdata", $config); $msg = file_exists(RASPI_DNSMASQ_PREFIX.$iface.'.conf') ? 'updated' : 'added'; system('sudo cp /tmp/dnsmasqdata '.RASPI_DNSMASQ_PREFIX.$iface.'.conf', $result); if ($result == 0) { $status->addMessage('Dnsmasq configuration for '.$iface.' '.$msg.'.', 'success'); } return $result; } /** * Updates a dhcp configuration * * @param string $iface * @param object $status * @return boolean $result */ function updateDHCPConfig($iface,$status) { $cfg[] = '# RaspAP '.$iface.' configuration'; $cfg[] = 'interface '.$iface; if (isset($_POST['StaticIP'])) { $mask = ($_POST['SubnetMask'] !== '' && $_POST['SubnetMask'] !== '0.0.0.0') ? '/'.mask2cidr($_POST['SubnetMask']) : null; $cfg[] = 'static ip_address='.$_POST['StaticIP'].$mask; } if (isset($_POST['DefaultGateway'])) { $cfg[] = 'static routers='.$_POST['DefaultGateway']; } if ($_POST['DNS1'] !== '' || $_POST['DNS2'] !== '') { $cfg[] = 'static domain_name_server='.$_POST['DNS1'].' '.$_POST['DNS2']; } if ($_POST['Metric'] !== '') { $cfg[] = 'metric '.$_POST['Metric']; } if ($_POST['Fallback'] == 1) { $cfg[] = 'profile static_'.$iface; $cfg[] = 'fallback static_'.$iface; } $dhcp_cfg = file_get_contents(RASPI_DHCPCD_CONFIG); if (!preg_match('/^interface\s'.$iface.'$/m', $dhcp_cfg)) { $cfg[] = PHP_EOL; $cfg = join(PHP_EOL, $cfg); $dhcp_cfg .= $cfg; $status->addMessage('DHCP configuration for '.$iface.' added.', 'success'); } else { $cfg = join(PHP_EOL, $cfg); $dhcp_cfg = preg_replace('/^#\sRaspAP\s'.$iface.'\s.*?(?=\s*^\s*$)/ms', $cfg, $dhcp_cfg, 1); $status->addMessage('DHCP configuration for '.$iface.' updated.', 'success'); } file_put_contents("/tmp/dhcpddata", $dhcp_cfg); system('sudo cp /tmp/dhcpddata '.RASPI_DHCPCD_CONFIG, $result); return $result; }