jgaunt/opnsense-carp-dhcp
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added random string to make log file clear of running instances

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This commit is contained in:
John Gaunt
2021-12-03 23:05:45 -05:00
parent a61fba5e89
commit c006654fa3
1 changed files with 31 additions and 11 deletions
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42
opnsense-carp-dhcp-backup-gateway.php
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@@ -14,13 +14,25 @@ require_once('plugins.inc.d/webgui.inc');
# Variables #
#############
$wanInterface = 'wan';
$wanInterface = 'lan';
$gatewayName = 'WAN_GW';
###################
# Start of Script #
###################
function getRandString($n) {
$characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
$randomString = '';
for ($i = 0; $i < $n; $i++) {
$index = rand(0, strlen($characters) - 1);
$randomString .= $characters[$index];
}
return $randomString;
}
function write_config_and_restart_services ($interface) {
write_config();
system_hosts_generate(true);
@@ -33,17 +45,23 @@ function write_config_and_restart_services ($interface) {
rrd_configure(true);
}
function echo_write_log ($message) {
function echo_write_log ($randomString, $message) {
$dateTime = date("Y-m-d H:i:s");
$folder = '/var/log/opnsense_carp_dhcp';
$message = $dateTime . " - " . $message;
$message = $dateTime . " - " . $randomString . " - " . $message . "\n";
if (!is_dir($folder)) {
mkdir($folder);
}
file_put_contents("$folder/log_".date("Ymd").".log", $message, FILE_APPEND);
echo $message . PHP_EOL;
echo $message;
}
$randomString = getRandString(5);
echo_write_log($randomString, "Start of Script " . $argv[0]);
echo_write_log($randomString, "WAN Interface: " . $wanInterface);
echo_write_log($randomString, "Name of static WAN Gateway: " . $gatewayName);
$intf_details = legacy_interfaces_details();
$intf = get_real_interface($wanInterface);
# loop through carp addresses and update the wan ip address
@@ -52,26 +70,28 @@ foreach ($config['virtualip']['vip'] as $i => $vip) {
$carpStatus = $intf_details[$intf]['carp'][$vip['vhid']]['status'];
if ($carpStatus == "BACKUP") {
$description = $config['virtualip']['vip'][$i]['descr'];
echo_write_log("Description from VIP WAN: " . $description);
echo_write_log($randomString, "Description from VIP WAN: " . $description);
# VIP WAN (GW: $gatewayIP)
$gatewayIP = trim(substr(explode(":", $description)[1], 0, -1));
echo_write_log("CARP Gateway IP from Description: " . $gatewayIP);
echo_write_log($randomString, "CARP Gateway IP from Description: " . $gatewayIP);
if (filter_var($gatewayIP, FILTER_VALIDATE_IP)) {
foreach ($config['gateways']['gateway_item'] as $i => $gateway) {
if ($gateway['name'] == $gatewayName) {
echo_write_log("Current Gateway IP: " . $gateway['gateway']);
echo_write_log($randomString, "Current Gateway IP: " . $gateway['gateway']);
if ($gateway['gateway'] != $gatewayIP) {
echo_write_log("Updating Gateway IPs");
echo_write_log($randomString, "Updating Gateway IPs");
$config['gateways']['gateway_item'][$i]['gateway'] = $gatewayIP;
write_config_and_restart_services($wanInterface);
} else {
echo_write_log("Gateway IPs are the same, not updating.");
echo_write_log($randomString, "Gateway IPs are the same, not updating.");
}
}
}
}
} else {
echo_write_log("Router is currenty carp master, not updating");
echo_write_log($randomString, "Router is currently carp master, not updating");
}
}
}
}
echo_write_log($randomString, "End of Script " . $argv[0]);