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mirror of https://github.com/billz/raspap-webgui.git synced 2023-10-10 13:37:24 +02:00

Merge branch 'feature-firewall' of https://github.com/RaspAP/raspap-insiders into feature-firewall

This commit is contained in:
billz 2021-08-05 15:18:24 +01:00
commit cca40f287c
7 changed files with 588 additions and 0 deletions

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@ -23,6 +23,8 @@ define('RASPI_OPENVPN_CLIENT_CONFIG', '/etc/openvpn/client/client.conf');
define('RASPI_OPENVPN_CLIENT_LOGIN', '/etc/openvpn/client/login.conf');
define('RASPI_WIREGUARD_PATH', '/etc/wireguard/');
define('RASPI_WIREGUARD_CONFIG', RASPI_WIREGUARD_PATH.'wg0.conf');
define('RASPAP_FIREWALL_CONF',"/etc/raspap/networking/firewall/firewall.conf");
define('RASPAP_IPTABLES_CONF',"/etc/raspap/networking/firewall/iptables_rules.json");
define('RASPI_TORPROXY_CONFIG', '/etc/tor/torrc');
define('RASPI_LIGHTTPD_CONFIG', '/etc/lighttpd/lighttpd.conf');
define('RASPI_ACCESS_CHECK_IP', '1.1.1.1');
@ -43,6 +45,7 @@ define('RASPI_DHCP_ENABLED', true);
define('RASPI_ADBLOCK_ENABLED', false);
define('RASPI_OPENVPN_ENABLED', false);
define('RASPI_WIREGUARD_ENABLED', false);
define('RASPI_FIREWALL_ENABLED', true);
define('RASPI_TORPROXY_ENABLED', false);
define('RASPI_CONFAUTH_ENABLED', true);
define('RASPI_CHANGETHEME_ENABLED', true);

205
config/iptables_rules.json Normal file
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@ -0,0 +1,205 @@
{
"info": "IPTABLES rules. $...$ expressions will be replaces automatically ($INTERFACE$, $PORT$, $IPADDRESS$)",
"rules_v4_file": "/etc/iptables/rules.v4",
"rules_v6_file": "/etc/iptables/rules.v6",
"order": [ "pre_rules", "restriction_rules", "main_rules", "exception_rules" ],
"pre_rules": [
{
"name": "firewall policies",
"fw-state": true,
"comment": "Policy rules (firewall)",
"rules": [
"-P INPUT DROP",
"-P FORWARD ACCEPT",
"-P OUTPUT ACCEPT",
"-t nat -P PREROUTING ACCEPT",
"-t nat -P POSTROUTING ACCEPT",
"-t nat -P INPUT ACCEPT",
"-t nat -P OUTPUT ACCEPT"
]
},
{
"name": "policies",
"fw-state": false,
"comment": "Policy rules",
"rules": [
"-P INPUT ACCEPT",
"-P FORWARD ACCEPT",
"-P OUTPUT ACCEPT",
"-t nat -P PREROUTING ACCEPT",
"-t nat -P POSTROUTING ACCEPT",
"-t nat -P INPUT ACCEPT",
"-t nat -P OUTPUT ACCEPT"
]
},
{
"name": "loopback",
"fw-state": true,
"comment": "allow loopback device",
"rules": [
"-A INPUT -i lo -j ACCEPT",
"-A OUTPUT -o lo -j ACCEPT"
]
},
{
"name": "ping",
"fw-state": true,
"ip-version": 4,
"comment": "allow ping request and echo",
"rules": [
"-A INPUT -p icmp --icmp-type 8/0 -j ACCEPT",
"-A INPUT -p icmp --icmp-type 0/0 -j ACCEPT"
]
},
{
"name": "ping IPv6",
"fw-state": true,
"ip-version": 6,
"comment": "allow ping request and echo for IPv6",
"rules": [
"-A INPUT -p icmpv6 --icmpv6-type echo-request -j ACCEPT",
"-A INPUT -p icmpv6 --icmpv6-type echo-reply -j ACCEPT"
]
},
{
"name": "ntp",
"fw-state": true,
"comment": "allow ntp request via udp (tcp should work w/o rule)",
"rules": [
"-A INPUT -p udp --sport 123 -j ACCEPT"
]
},
{
"name": "dns",
"fw-state": true,
"comment": "allow dns request via tcp and udp",
"rules": [
"-A INPUT -p udp -m multiport --sport 53,853 -j ACCEPT",
"-A INPUT -p tcp -m multiport --sport 53,853 -j ACCEPT"
]
}
],
"main_rules": [
{
"name": "accesspoint",
"fw-state": true,
"comment": "Access point interface by default no restrictions",
"dependson": [
{ "var": "ap-device", "type": "string", "replace": "$INTERFACE$" }
],
"rules": [
"-A INPUT -i $INTERFACE$ -j ACCEPT",
"-A OUTPUT -o $INTERFACE$ -j ACCEPT"
]
},
{
"name": "NAT for access point",
"comment": "Masquerading needed for access point",
"rules": [
"-t nat -A POSTROUTING -j MASQUERADE"
]
},
{
"name": "clients",
"fw-state": true,
"comment": "Rules for client interfaces (includes tun device)",
"rules": [
"-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT"
]
},
{
"name": "openvpn",
"comment": "Rules for tunnel device (tun)",
"ip-version": 4,
"dependson": [
{ "var": "openvpn-enable", "type": "bool" },
{ "var": "openvpn-serverip", "type": "string", "replace": "$IPADDRESS$" },
{ "var": "ap-device", "type": "string", "replace": "$INTERFACE$" }
],
"rules": [
"-A INPUT -p udp -s $IPADDRESS$ -j ACCEPT",
"-A FORWARD -i tun+ -o $INTERFACE$ -m state --state RELATED,ESTABLISHED -j ACCEPT",
"-A FORWARD -i $INTERFACE$ -o tun+ -j ACCEPT",
"-t nat -A POSTROUTING -o tun+ -j MASQUERADE"
]
},
{
"name": "wireguard",
"comment": "Rules for wireguard device (wg)",
"ip-version": 4,
"dependson": [
{ "var": "wireguard-enable", "type": "bool" },
{ "var": "wireguard-serverip", "type": "string", "replace": "$IPADDRESS$" },
{ "var": "client-device", "type": "string", "replace": "$INTERFACE$" }
],
"rules": [
"-A INPUT -p udp -s $IPADDRESS$ -j ACCEPT",
"-A FORWARD -i wg+ -j ACCEPT",
"-t nat -A POSTROUTING -o $INTERFACE$ -j MASQUERADE"
]
}
],
"exception_rules": [
{
"name": "ssh",
"fw-state": true,
"comment": "Allow ssh access to RaspAP on port 22",
"dependson": [
{ "var": "ssh-enable", "type": "bool" }
],
"rules": [
"-A INPUT -p tcp --dport 22 -j ACCEPT"
]
},
{
"name": "http",
"fw-state": true,
"comment": "Allow access to RaspAP GUI (https)",
"dependson": [
{ "var": "http-enable", "type": "bool" }
],
"rules": [
"-A INPUT -p tcp -m multiport --dports 80,443 -j ACCEPT"
]
},
{
"name": "interface",
"fw-state": true,
"comment": "Exclude interface from firewall",
"dependson": [
{ "var": "excl-devices", "type": "list", "replace": "$INTERFACE$" }
],
"rules": [
"-A INPUT -i $INTERFACE$ -j ACCEPT",
"-A OUTPUT -o $INTERFACE$ -j ACCEPT"
]
},
{
"name": "ipaddress",
"fw-state": true,
"ip-version": 4,
"comment": "allow access from/to IP",
"dependson": [
{ "var": "excluded-ips", "type": "list", "replace": "$IPADDRESS$" }
],
"rules": [
"-A INPUT -s $IPADDRESS$ -j ACCEPT",
"-A INPUT -d $IPADDRESS$ -j ACCEPT"
]
}
],
"restriction_rules": [
{
"name": "ipaddress",
"fw-state": true,
"ip-version": 4,
"dependson": [
{ "var": "restricted-ips", "type": "list", "replace": "$IPADDRESS$" }
],
"comment": "Block access from IP-address",
"rules": [
"-A INPUT -s $IPADDRESS$ -j DROP"
]
}
]
}

259
includes/firewall.php Normal file
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@ -0,0 +1,259 @@
<?php
require_once 'includes/status_messages.php';
require_once 'includes/functions.php';
define('RASPAP_IPTABLES_SCRIPT',"/tmp/iptables_raspap.sh");
define('RASPAP_IP6TABLES_SCRIPT',"/tmp/ip6tables_raspap.sh");
function getDependson(&$rule, &$conf) {
if ( isset($rule["dependson"][0]) ) {
$don = &$rule["dependson"];
if ( !empty($don[0]) && isset($conf[$don[0]["var"]]) ) {
if ( !isset($don[0]["type"]) ) $don[0]["type"]="bool";
return $don;
}
}
return false;
}
function isRuleEnabled(&$sect, &$conf) {
$fw_on = isset($conf["firewall-enable"]) && $conf["firewall-enable"];
$active = isset($sect["fw-state"]) && $sect["fw-state"]==1;
$active = $fw_on ? $active : !$active;
$active = $active || !isset($sect["fw-state"]);
if ( ($don = getDependson($sect, $conf)) !== false &&
$don[0]["type"] == "bool" && !$conf[$don[0]["var"]] ) $active = false;
return $active;
}
function createRuleStr(&$sect, &$conf) {
if ( !is_array($sect["rules"]) ) return "";
$rules = $sect["rules"];
$depon = getDependson($sect,$conf);
$rs = array();
foreach ( $rules as $rule ) {
if ( preg_match('/\$[a-z0-9]*\$/i',$rule) ) {
$r = array($rule);
foreach ( $depon as $dep ) {
$rr = array();
$repl=$val="";
switch ( $dep["type"] ) {
case "list":
if ( isset($dep["var"]) && !empty($conf[$dep["var"]]) ) $val = explode(' ', $conf[$dep["var"]]);
if ( !empty($val) && isset($dep["replace"]) ) $repl=$dep["replace"];
break;
case "string":
if ( isset($dep["var"]) ) $val=$conf[$dep["var"]];
if ( !empty($val) && isset($dep["replace"]) ) $repl=$dep["replace"];
break;
default:
break;
}
if ( !empty($repl) && !empty($val) ) {
if ( is_array($val) ) {
foreach ( $val as $v ) $rr = array_merge($rr,str_replace($repl, $v, $r));
}
else $rr = array_merge($rr, str_replace($repl, $val, $r));
}
$r = !empty($rr) ? $rr : $r;
}
$rs = array_merge($rs,$rr);
} else {
$rs[] = $rule;
}
}
$str="";
foreach ( $rs as $r ) {
if ( !preg_match('/\$[a-z0-9]*\$/i',$r) ) $str .= '$IPT '.$r."\n";
}
return $str;
}
function isIPv4(&$rule) {
return !isset($rule["ip-version"]) || strstr($rule["ip-version"],"4") !== false;
}
function isIPv6(&$rule) {
return !isset($rule["ip-version"]) || strstr($rule["ip-version"],"6") !== false;
}
function configureFirewall() {
$json = file_get_contents(RASPAP_IPTABLES_CONF);
$ipt = json_decode($json, true);
$conf = ReadFirewallConf();
$txt = "#!/bin/bash\n";
file_put_contents(RASPAP_IPTABLES_SCRIPT, $txt);
file_put_contents(RASPAP_IP6TABLES_SCRIPT, $txt);
file_put_contents(RASPAP_IPTABLES_SCRIPT, 'IPT="iptables"'."\n", FILE_APPEND);
file_put_contents(RASPAP_IP6TABLES_SCRIPT, 'IPT="ip6tables"'."\n", FILE_APPEND);
$txt = "\$IPT -F\n";
$txt .= "\$IPT -X\n";
$txt .= "\$IPT -t nat -F\n";
file_put_contents(RASPAP_IPTABLES_SCRIPT, $txt, FILE_APPEND);
file_put_contents(RASPAP_IP6TABLES_SCRIPT, $txt, FILE_APPEND);
if ( empty($conf) || empty($ipt) ) return false;
$count=0;
foreach ( $ipt["order"] as $idx ) {
if ( isset($ipt[$idx]) ) {
foreach ( $ipt[$idx] as $i => $sect ) {
if ( isRuleEnabled($sect, $conf) ) {
$str_rules= createRuleStr($sect, $conf);
if ( !empty($str_rules) ) {
if ( isIPv4($sect) ) file_put_contents(RASPAP_IPTABLES_SCRIPT, $str_rules, FILE_APPEND);
if ( isIPv6($sect) ) file_put_contents(RASPAP_IP6TABLES_SCRIPT, $str_rules, FILE_APPEND);
++$count;
}
}
}
}
}
if ( $count > 0 ) {
exec("chmod +x ".RASPAP_IPTABLES_SCRIPT);
exec("sudo ".RASPAP_IPTABLES_SCRIPT);
// exec("sudo iptables-save > /etc/iptables/rules.v4");
// unlink(RASPAP_IPTABLES_SCRIPT);
exec("chmod +x ".RASPAP_IP6TABLES_SCRIPT);
exec("sudo ".RASPAP_IP6TABLES_SCRIPT);
// exec("sudo iptables-save > /etc/iptables/rules.v6");
// unlink(RASPAP_IP6TABLES_SCRIPT);
}
return ($count > 0);
}
function WriteFirewallConf($conf) {
$ret = false;
if ( is_array($conf) ) write_php_ini($conf,RASPAP_FIREWALL_CONF);
return $ret;
}
function ReadFirewallConf() {
if ( file_exists(RASPAP_FIREWALL_CONF) ) {
$conf = parse_ini_file(RASPAP_FIREWALL_CONF);
} else {
$conf = array();
$conf["firewall-enable"] = false;
$conf["ssh-enable"] = false;
$conf["http-enable"] = false;
$conf["excl-devices"] = "";
$conf["excluded-ips"] = "";
$conf["ap-device"] = "";
$conf["client-device"] = "";
$conf["restricted-ips"] = "";
}
exec('ifconfig | grep -E -i "^tun[0-9]"', $ret);
$conf["openvpn-enable"] = !empty($ret);
unset($ret);
exec('ifconfig | grep -E -i "^wg[0-9]"', $ret);
$conf["wireguard-enable"] = !empty($ret);
return $conf;
}
function getVPN_IPs() {
$ips = "";
# get openvpn and wireguard server IPs
if ( RASPI_OPENVPN_ENABLED && ($fconf = glob(RASPI_OPENVPN_CLIENT_PATH ."/*.conf")) !== false && !empty($fconf) ) {
foreach ( $fconf as $f ) {
unset($result);
exec('cat '.$f.' | sed -rn "s/^remote\s*([a-z0-9\.\-\_:]*)\s*([0-9]*)\s*$/\1 \2/ip" ', $result);
if ( !empty($result) ) {
$result = explode(" ",$result[0]);
$ip = (isset($result[0])) ? $result[0] : "";
$port = (isset($result[1])) ? $result[1] : "";
if ( !empty($ip) ) {
$ip = gethostbyname($ip);
if ( filter_var($ip,FILTER_VALIDATE_IP) && strpos($ips, $ip) === false ) $ips .= " $ip";
}
}
}
}
# get wireguard server IPs
if ( RASPI_WIREGUARD_ENABLED && ($fconf = glob(RASPI_WIREGUARD_PATH ."/*.conf")) !== false && !empty($fconf) ) {
foreach ( $fconf as $f ) {
unset($result);
exec('sudo /bin/cat '.$f.' | sed -rn "s/^endpoint\s*=\s*\[?([a-z0-9\.\-\_:]*)\]?:([0-9]*)\s*$/\1 \2/ip" ', $result);
if ( !empty($result) ) {
$result = explode(" ",$result[0]);
$ip = (isset($result[0])) ? $result[0] : "";
$port = (isset($result[1])) ? $result[1] : "";
if ( !empty($ip) ) {
$ip = gethostbyname($ip);
if ( filter_var($ip,FILTER_VALIDATE_IP) && strpos($ips, $ip) === false ) $ips .= " $ip";
}
}
}
}
return trim($ips);
}
function DisplayFirewallConfig()
{
$status = new StatusMessages();
$json = file_get_contents(RASPAP_IPTABLES_CONF);
$ipt_rules = json_decode($json, true);
getWifiInterface();
$ap_device = $_SESSION['ap_interface'];
$clients = getClients();
$str_clients = "";
foreach( $clients["device"] as $dev ) {
if ( !$dev["isAP"] ) {
if ( !empty($str_clients) ) $str_clients .= ", ";
$str_clients .= $dev["name"];
}
}
$fw_conf = ReadFirewallConf();
$fw_conf["ap-device"] = $ap_device;
$id=findCurrentClientIndex($clients);
if ( $id >= 0 ) $fw_conf["client-device"] = $clients["device"][$id]["name"];
if (!empty($_POST)) {
$fw_conf["ssh-enable"] = isset($_POST['ssh-enable']);
$fw_conf["http-enable"] = isset($_POST['http-enable']);
$fw_conf["firewall-enable"] = isset($_POST['firewall-enable']) || isset($_POST['apply-firewall']);
if ( isset($_POST['firewall-enable']) ) $status->addMessage(_('Firewall is now enabled'), 'success');
if ( isset($_POST['apply-firewall']) ) $status->addMessage(_('Firewall settings changed'), 'success');
if ( isset($_POST['firewall-disable']) ) $status->addMessage(_('Firewall is now disabled'), 'warning');
if ( isset($_POST['save-firewall']) ) $status->addMessage(_('Firewall settings saved. Firewall is still disabled.'), 'success');
if ( isset($_POST['excl-devices']) ) {
$excl = filter_var($_POST['excl-devices'], FILTER_SANITIZE_STRING);
$excl = str_replace(',', ' ', $excl);
$excl = trim(preg_replace('/\s+/', ' ', $excl));
if ( $fw_conf["excl-devices"] != $excl ) {
$status->addMessage(_('Exclude devices '. $excl), 'success');
$fw_conf["excl-devices"] = $excl;
}
}
if ( isset($_POST['excluded-ips']) ) {
$excl = filter_var($_POST['excluded-ips'], FILTER_SANITIZE_STRING);
$excl = str_replace(',', ' ', $excl);
$excl = trim(preg_replace('/\s+/', ' ', $excl));
if ( !empty($excl) ) {
$excl = explode(' ',$excl);
$str_excl = "";
foreach ( $excl as $ip ) {
if ( filter_var($ip,FILTER_VALIDATE_IP) ) $str_excl .= "$ip ";
else $status->addMessage(_('Exclude IP address '. $ip . ' failed - not a valid IP address'), 'warning');
}
}
$str_excl = trim($str_excl);
if ( $fw_conf["excluded-ips"] != $str_excl ) {
$status->addMessage(_('Exclude IP address(es) '. $str_excl ), 'success');
$fw_conf["excluded-ips"] = $str_excl;
}
}
WriteFirewallConf($fw_conf);
configureFirewall();
}
$vpn_ips = getVPN_IPs();
echo renderTemplate("firewall", compact(
"status",
"ap_device",
"str_clients",
"fw_conf",
"ipt_rules",
"vpn_ips")
);
}

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@ -41,6 +41,7 @@ require_once 'includes/system.php';
require_once 'includes/sysstats.php';
require_once 'includes/configure_client.php';
require_once 'includes/networking.php';
require_once 'includes/firewall.php';
require_once 'includes/themes.php';
require_once 'includes/data_usage.php';
require_once 'includes/about.php';
@ -175,6 +176,11 @@ $bridgedEnabled = getBridgedState();
<?php if (RASPI_TORPROXY_ENABLED) : ?>
<li class="nav-item">
<a class="nav-link" href="torproxy_conf"><i class="fas fa-eye-slash fa-fw mr-2"></i><span class="nav-label"><?php echo _("TOR proxy"); ?></a>
</li>
<?php endif; ?>
<?php if (RASPI_FIREWALL_ENABLED) : ?>
<li class="nav-item">
<a class="nav-link" href="firewall_conf"><span class="fas fa-shield-alt mr-2"></span><span class="nav-label"><?php echo _("Firewall"); ?></a>
</li>
<?php endif; ?>
<?php if (RASPI_CONFAUTH_ENABLED) : ?>
@ -274,6 +280,9 @@ $bridgedEnabled = getBridgedState();
case "/torproxy_conf":
DisplayTorProxyConfig();
break;
case "/firewall_conf":
DisplayFirewallConfig();
break;
case "/auth_conf":
DisplayAuthConfig($config['admin_user'], $config['admin_pass']);
break;

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@ -0,0 +1,20 @@
#!/bin/bash
#
# RaspAP feature installation: Firewall
# to be sources by the RaspAP installer script
# Author: @zbchristian <christian@zeitnitz.eu>
# Author URI: https://github.com/zbchristian/
# License: GNU General Public License v3.0
# License URI: https://github.com/raspap/raspap-webgui/blob/master/LICENSE
function _install_feature_firewall() {
name="feature firewall"
_install_log "Install $name"
# create config dir
sudo mkdir "$raspap_network/firewall" || _install_status 1 "Unable to create firewall config directory"
# copy firewall configuration
sudo cp "$webroot_dir/config/iptables_rules.json" "$raspap_network/firewall/" || _install_status 1 "Unable to copy iptables templates"
sudo chown $raspap_user:$raspap_user -R "$raspap_network/firewall" || _install_status 1 "Unable to change ownership of firewall directory and files "
_install_status 0
}

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@ -62,3 +62,5 @@ www-data ALL=(ALL) NOPASSWD:/bin/cat /etc/wireguard/*.conf
www-data ALL=(ALL) NOPASSWD:/bin/cat /etc/wireguard/wg-*.key
www-data ALL=(ALL) NOPASSWD:/bin/rm /etc/wireguard/*.conf
www-data ALL=(ALL) NOPASSWD:/bin/rm /etc/wireguard/wg-*.key
www-data ALL=(ALL) NOPASSWD:/tmp/iptables_raspap.sh
www-data ALL=(ALL) NOPASSWD:/tmp/ip6tables_raspap.sh

90
templates/firewall.php Normal file
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@ -0,0 +1,90 @@
<div class="row">
<div class="col-lg-12">
<div class="card">
<div class="card-header">
<div class="row">
<div class="col">
<i class="fas fa-shield-alt mr-2"></i><?php echo _("Firewall"); ?>
</div>
</div><!-- /.row -->
</div><!-- /.card-header -->
<div class="card-body">
<?php $status->showMessages(); ?>
<h4><?php echo _("Client Firewall"); ?></h4>
<?php if ( $fw_conf["firewall-enable"]) : ?>
<i class="fas fa-circle mr-2 service-status-up"></i><?php echo _("Firewall is ENABLED"); ?>
<?php else : ?>
<i class="fas fa-circle mr-2 service-status-down"></i><?php echo _("Firewall is OFF "); ?>
<?php endif ?>
<div class="row">
<div class="col-md-6">
<p class="mr-2"><small><?php echo _("The default firewall will only allow outgoing and already established traffic.<br> No incoming UDP traffic is allowed.<br>There are no restrictions for the access point <code>$ap_device</code>.") ?></small></p>
</div>
</div>
<form id="frm-firewall" action="firewall_conf" method="POST" >
<?php echo CSRFTokenFieldTag(); ?>
<h5><?php echo _("Exception: Service"); ?></h4>
<div class="row">
<div class="form-group col-md-6">
<div class="custom-control custom-switch">
<input class="custom-control-input" id="ssh-enable" type="checkbox" name="ssh-enable" value="1" aria-describedby="exception-description" <?php if ($fw_conf["ssh-enable"]) echo "checked"; ?> >
<label class="custom-control-label" for="ssh-enable"><?php echo _("allow SSH access on port 22") ?></label>
</div>
<div class="custom-control custom-switch">
<input class="custom-control-input" id="http-enable" type="checkbox" name="http-enable" value="1" aria-describedby="exceptions-description" <?php if ($fw_conf["http-enable"]) echo "checked"; ?> >
<label class="custom-control-label" for="http-enable"><?php echo _("allow access to the RaspAP GUI on port 80 or 443") ?></label>
</div>
<p class="mb-0" id="exceptions-description">
<small><?php echo _("Allow incoming connections for some services from the internet side.") ?></small>
</p>
</div>
</div>
<h5><?php echo _("Exception: network device"); ?></h4>
<div class="row">
<div class="form-group col-md-6">
<label for="excl-device"><?php echo _("Exclude device(s)") ?></label>
<input class="form-control" id="excl-devices" type="text" name="excl-devices" value="<?php echo $fw_conf["excl-devices"] ?>" aria-describedby="exclusion-description" >
<p class="mb-0" id="exclusion-description">
<small><?php echo _("Exclude the given network device(s) (separated by a blank or comma) from firewall rules.<br>Current client devices: <code>$str_clients</code><br>The access point <code>". $ap_device ."</code> is per default excluded.") ?></small>
</p>
</div>
</div>
<h5><?php echo _("Exception: IP-Address"); ?></h4>
<div class="row">
<div class="form-group col-md-6">
<label for="excluded-ips"><?php echo _("Allow incoming connections from") ?></label>
<input class="form-control" id="excluded-ips" type="text" name="excluded-ips" value="<?php echo $fw_conf["excluded-ips"] ?>" aria-describedby="excl-ips-description" >
<p class="mb-0" id="excl-ips-description">
<small><?php echo _("For the given IP-addresses (separated by a blank or comma) the incoming connection (via TCP and UDP) is accepted.<br>This is required for an OpenVPN via UDP or Wireguard connection.") ?></small>
<small><?php if ( !empty($vpn_ips) ) echo _("<br>The list of configured VPN server IP addresses: <code><b>". $vpn_ips. "</b></code>") ?></small>
</p>
</div>
</div>
<?php if ($fw_conf["firewall-enable"]) : ?>
<input type="submit" class="btn btn-outline btn-primary" value="<?php echo _("Apply changes"); ?>" name="apply-firewall" />
<input type="submit" class="btn btn-warning firewall-apply" value="<?php echo _("Disable Firewall") ?>" name="firewall-disable" data-toggle="modal" data-target="#firewallModal"/>
<?php else : ?>
<input type="submit" class="btn btn-outline btn-primary" value="<?php echo _("Save"); ?>" name="save-firewall" />
<input type="submit" class="btn btn-success firewall-apply" value="<?php echo _("Enable Firewall") ?>" name="firewall-enable" data-toggle="modal" data-target="#firewallModal"/>
<?php endif ?>
</form>
</div><!-- /.card-body -->
<div class="card-footer"></div>
</div><!-- /.card -->
</div><!-- /.col-lg-12 -->
</div><!-- /.row -->
<!-- Modal -->
<div class="modal fade" id="firewallModal" tabindex="-1" role="dialog" aria-labelledby="ModalLabel" aria-hidden="true">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<div class="modal-title" id="ModalLabel">
<i class="fas fa-sync-alt mr-2"></i>
<?php if($fw_conf["firewall-enable"]) echo _("Disable the firewall ..."); else echo _("Enable the Firewall ..."); ?>
</div>
<button type="button" class="close" data-dismiss="modal" aria-label="Close"> <span aria-hidden="true">&times;</span>
</div>
</div>
</div>