pfSense

function openvpn_get_active_servers() {

	$servers = array();

	global $config;

	if (is_array($config['openvpn']['openvpn-server'])) {

		foreach ($config['openvpn']['openvpn-server'] as & $settings) {

			$prot = $settings['protocol'];

			$port = $settings['local_port'];

			$server = array();

			$server['port'] = $settings['local_port'];

			if ($settings['description'])

				$server['name'] = "{$settings['description']} {$prot}:{$port}";

			else

				$server['name'] = "Server {$prot}:{$port}";

			$server['conns'] = array();

			$tcpsrv = "tcp://127.0.0.1:{$port}";

			$errval;

			$errstr;

			/* open a tcp connection to the management port of each server */

			$fp = @stream_socket_client($tcpsrv, $errval, $errstr, 1);

			if ($fp) {

				/* send our status request */

				fputs($fp, "status 2\n");

				/* recv all response lines */

				while (!feof($fp)) {

					/* read the next line */

					$line = fgets($fp, 1024);

					/* parse header list line */

					if (strstr($line, "HEADER"))

						continue;

					/* parse end of output line */

					if (strstr($line, "END"))

						break;

					/* parse client list line */

					if (strstr($line, "CLIENT_LIST")) {

						$list = explode(",", $line);

						$conn = array();

						$conn['common_name'] = $list[1];

						$conn['remote_host'] = $list[2];

						$conn['virtual_addr'] = $list[3];

						$conn['bytes_recv'] = $list[4];

						$conn['bytes_sent'] = $list[5];

						$conn['connect_time'] = $list[6];

						$server['conns'][] = $conn;

					}

				}

				/* cleanup */

				fclose($fp);

			} else {

				$conn = array();

				$conn['common_name'] = "[error]";

				$conn['remote_host'] = "Management Daemon Unreachable";

				$conn['virtual_addr'] = "";

				$conn['bytes_recv'] = 0;

				$conn['bytes_sent'] = 0;

				$conn['connect_time'] = 0;

				$server['conns'][] = $conn;

			}

			$servers[] = $server;

		}

	}

	return $servers;

}

function openvpn_get_active_clients() {

	$clients = array();

	global $config;

	if (is_array($config['openvpn']['openvpn-client'])) {

		foreach ($config['openvpn']['openvpn-client'] as & $settings) {

			$prot = $settings['protocol'];

			$port = $settings['local_port'];

			$client = array();

			$client['port'] = $settings['local_port'];

			if ($settings['description'])

				$client['name'] = "{$settings['description']} {$prot}:{$port}";

			else

				$client['name'] = "Client {$prot}:{$port}";

			$tcpcli = "tcp://127.0.0.1:{$port}";

			$errval;

			$errstr;

			$client['status']="down";

			/* open a tcp connection to the management port of each cli */

			$fp = @stream_socket_client($tcpcli, $errval, $errstr, 1);

			if ($fp) {

				/* send our status request */

				fputs($fp, "state 1\n");

				/* recv all response lines */

				while (!feof($fp)) {

					/* read the next line */

					$line = fgets($fp, 1024);

					/* Get the client state */

					if (strstr($line,"CONNECTED")) {

						$client['status']="up";

						$list = explode(",", $line);

						$client['connect_time']  = date("D M j G:i:s Y", $list[0]);

						$client['virtual_addr']  = $list[3];

						$client['remote_host'] = $list[4];

					}

					/* parse end of output line */

					if (strstr($line, "END"))

						break;

				}

				/* If up, get read/write stats */

				if (strcmp($client['status'], "up") == 0) {

					fputs($fp, "status 2\n");

					/* recv all response lines */

					while (!feof($fp)) {

						/* read the next line */

						$line = fgets($fp, 1024);

						if (strstr($line,"TCP/UDP read bytes")) {

							$list = explode(",", $line);

							$client['bytes_recv'] = $list[1];

						}

						if (strstr($line,"TCP/UDP write bytes")) {

							$list = explode(",", $line);

							$client['bytes_sent'] = $list[1];

						}

						/* parse end of output line */

						if (strstr($line, "END"))

							break;

					}

				}

				fclose($fp);

			} else {

				$DisplayNote=true;

				$client['remote_host'] = "No Management Daemon";

				$client['virtual_addr'] = "See Note Below";

				$client['bytes_recv'] = 0;

				$client['bytes_sent'] = 0;

				$client['connect_time'] = 0;

			}

			$clients[] = $client;

		}

	}

	return $clients;

}

require_once("openvpn.inc");

$servers = openvpn_get_active_servers();

$clients = openvpn_get_active_clients();