108 lines
3.8 KiB
PHP
108 lines
3.8 KiB
PHP
#!/usr/local/bin/php
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<?php
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require_once("config.inc");
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require_once("interfaces.inc");
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require_once("util.inc");
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require_once("filter.inc");
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require_once("util.inc");
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require_once("system.inc");
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require_once('rrd.inc');
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require_once('plugins.inc.d/webgui.inc');
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#############
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# Variables #
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#############
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$wanInterface = 'wan';
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$gatewayName = 'WAN_GW';
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###################
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# Start of Script #
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###################
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$randomString = getRandString(5);
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function getRandString($n) {
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$characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
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$randomString = '';
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for ($i = 0; $i < $n; $i++) {
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$index = rand(0, strlen($characters) - 1);
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$randomString .= $characters[$index];
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}
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return $randomString;
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}
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function write_config_and_restart_services ($interface) {
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write_config();
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system_hosts_generate(true);
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system_resolvconf_generate(true);
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interface_bring_down($interface);
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interface_configure(true, $interface, true);
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plugins_configure('monitor', true);
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filter_configure_sync(true);
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webgui_configure_do(true);
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rrd_configure(true);
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}
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function echo_write_log ($message) {
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global $randomString;
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$dateTime = date("Y-m-d H:i:s");
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$folder = '/var/log/opnsense_carp_dhcp';
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$message = $dateTime . " - " . $randomString . " - " . $message . "\n";
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if (!is_dir($folder)) {
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mkdir($folder);
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}
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file_put_contents("$folder/log_".date("Ymd").".log", $message, FILE_APPEND);
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echo $message;
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}
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echo_write_log("Start of Script " . $argv[0]);
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echo_write_log("WAN Interface: " . $wanInterface);
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echo_write_log("Name of static WAN Gateway: " . $gatewayName);
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$intf_details = legacy_interfaces_details();
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$intf = get_real_interface($wanInterface);
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echo_write_log("Real WAN Interface: " . $intf);
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echo_write_log("Looping through VIP CARP Interfaces...");
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# loop through CARP addresses and update the wan ip address
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foreach ($config['virtualip']['vip'] as $i => $vip) {
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if ($vip['interface'] == $wanInterface) {
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echo_write_log("VIP CARP WAN Interface and vhid: " . convert_friendly_interface_to_friendly_descr($vip['interface']) . "@{$vip['vhid']}");
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$carpStatus = $intf_details[$intf]['carp'][$vip['vhid']]['status'];
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echo_write_log("VIP CARP WAN Status: " . $carpStatus);
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if ($carpStatus == "BACKUP") {
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$description = $config['virtualip']['vip'][$i]['descr'];
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echo_write_log("Description from VIP WAN: " . $description);
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# VIP WAN (GW: $gatewayIP)
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$gatewayIP = trim(substr(explode(":", $description)[1], 0, -1));
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echo_write_log("CARP Gateway IP from Description: " . $gatewayIP);
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if (filter_var($gatewayIP, FILTER_VALIDATE_IP)) {
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echo_write_log("Looping through Gateways...");
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foreach ($config['gateways']['gateway_item'] as $i => $gateway) {
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if ($gateway['name'] == $gatewayName) {
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echo_write_log("Gateway Name: " . $gateway['name']);
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echo_write_log("Current Gateway IP: " . $gateway['gateway']);
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if ($gateway['gateway'] != $gatewayIP) {
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echo_write_log("Updating Gateway IPs");
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$config['gateways']['gateway_item'][$i]['gateway'] = $gatewayIP;
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write_config_and_restart_services($wanInterface);
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} else {
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echo_write_log("Gateway IPs are the same, not updating");
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}
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}
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}
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} else {
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echo_write_log("Gateway IP is not a valid IP address");
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}
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} else {
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echo_write_log("Router is currently CARP master, not updating");
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}
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}
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}
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echo_write_log("End of Script " . $argv[0]); |