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<?php
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2
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require_once("config.inc");
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3
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require_once("functions.inc");
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4
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5
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/* MiniUPnPd */
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6
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function upnp_notice ($msg) { syslog(LOG_NOTICE, "miniupnpd: {$msg}"); }
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8
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function upnp_warn ($msg) { syslog(LOG_WARNING, "miniupnpd: {$msg}"); }
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9
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10
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function upnp_running () {
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if((int)exec('pgrep miniupnpd | wc -l') > 0)
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return true;
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return false;
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}
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function upnp_write_config($file, $text) {
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$handle = fopen($file, 'w');
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if(!$handle) {
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upnp_warn("Could not open {$file} for writing.");
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exit;
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}
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fwrite($handle, $text);
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fclose($handle);
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}
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function upnp_uuid() {
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/* md5 hash of wan mac */
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$uuid = md5(exec('arp -an -i '.get_real_wan_interface().' | /usr/bin/cut -d " " -f4'));
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/* put uuid in correct format 8-4-4-4-12 */
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return substr($uuid,0,8).'-'.substr($uuid,9,4).'-'.substr($uuid,13,4).'-'.substr($uuid,17,4).'-'.substr($uuid,21,12);
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}
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function upnp_validate_ip($ip, $check_cdir) {
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/* validate cdir */
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if($check_cdir) {
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$ip_array = explode('/', $ip);
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if(count($ip_array) == 2) {
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if($ip_array[1] < 1 || $ip_array[1] > 32)
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return false;
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} else
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if(count($ip_array) != 1)
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return false;
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} else
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$ip_array[] = $ip;
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/* validate ip */
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if(!eregi('^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$', $ip_array[0]))
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return false;
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foreach(explode('.', $ip_array[0]) as $sub)
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if($sub < 0 || $sub > 256)
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return false;
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return true;
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}
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function upnp_validate_port($port) {
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foreach(explode('-', $port) as $sub)
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if($sub < 0 || $sub > 65535)
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return false;
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return true;
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}
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function before_form_miniupnpd($pkg) {
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global $config;
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config_lock();
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/* if shaper connection speed defined hide fields */
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if($config['ezshaper']['step2']['download'] && $config['ezshaper']['step2']['upload']) {
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$i=0;
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foreach ($pkg['fields']['field'] as $field) {
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if ($field['fieldname'] == 'download' || $field['fieldname'] == 'upload')
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unset($pkg['fields']['field'][$i]);
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$i++;
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}
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}
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config_unlock();
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}
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function validate_form_miniupnpd($post, $input_errors) {
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if($post['iface_array'])
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foreach($post['iface_array'] as $iface)
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if($iface == 'wan')
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$input_errors[] = 'It is a security risk to specify WAN in the \'Interface\' field';
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if($post['overridewanip'] && !upnp_validate_ip($post['overridewanip'],false))
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$input_errors[] = 'You must specify a valid ip address in the \'Override WAN address\' field';
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if(($post['download'] && !$post['upload']) || ($post['upload'] && !$post['download']))
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$input_errors[] = 'You must fill in both \'Maximum Download Speed\' and \'Maximum Upload Speed\' fields';
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if($post['download'] && $post['download'] <= 0)
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$input_errors[] = 'You must specify a value greater than 0 in the \'Maximum Download Speed\' field';
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if($post['upload'] && $post['upload'] <= 0)
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$input_errors[] = 'You must specify a value greater than 0 in the \'Maximum Upload Speed\' field';
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/* user permissions validation */
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for($i=1; $i<=4; $i++) {
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if($post["permuser{$i}"]) {
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$perm = explode(' ',$post["permuser{$i}"]);
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/* should explode to 4 args */
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if(count($perm) != 4) {
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$input_errors[] = "You must follow the specified format in the 'User specified permissions {$i}' field";
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} else {
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/* must with allow or deny */
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if(!($perm[0] == 'allow' || $perm[0] == 'deny'))
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$input_errors[] = "You must begin with allow or deny in the 'User specified permissions {$i}' field";
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/* verify port or port range */
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if(!upnp_validate_port($perm[1]) || !upnp_validate_port($perm[3]))
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$input_errors[] = "You must specify a port or port range between 0 and 65535 in the 'User specified
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permissions {$i}' field";
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/* verify ip address */
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if(!upnp_validate_ip($perm[2],true))
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$input_errors[] = "You must specify a valid ip address in the 'User specified permissions {$i}' field";
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}
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}
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}
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}
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function sync_package_miniupnpd() {
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global $config;
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global $input_errors;
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120
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config_lock();
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$upnp_config = $config['installedpackages']['miniupnpd']['config'][0];
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$config_file = '/var/etc/miniupnpd.conf';
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$config_text = "ext_ifname=".get_real_wan_interface()."\n";
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$config_text .= "port=2189\n";
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$ifaces_active = '';
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/* since config is written before this file invoked we don't need to read post data */
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if($upnp_config['enable'] && $upnp_config['iface_array'])
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$iface_array = explode(',', $upnp_config['iface_array']);
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if($iface_array) {
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foreach($iface_array as $iface) {
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$if = convert_friendly_interface_to_real_interface_name($iface);
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/* above function returns iface if fail */
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if($if!=$iface) {
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$addr = find_interface_ip($if);
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/* non enabled interfaces are displayed in list on miniupnpd settings page */
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/* check that the interface has an ip address before adding parameters */
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if($addr) {
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$config_text .= "listening_ip={$addr}\n";
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if(!$ifaces_active) {
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$webgui_ip = $addr;
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$ifaces_active = $iface;
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} else {
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$ifaces_active .= ", {$iface}";
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}
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} else {
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upnp_warn("Interface {$iface} has no ip address, ignoring");
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}
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} else {
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upnp_warn("Could not resolve real interface for {$iface}");
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}
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}
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if($ifaces_active) {
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/* override wan ip address, common for carp, etc */
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if($upnp_config['overridewanip'])
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$config_text .= "ext_ip={$upnp_config['overridewanip']}\n";
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/* if shaper connection speed defined use those values */
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if($config['ezshaper']['step2']['download'] && $config['ezshaper']['step2']['upload']) {
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$download = $config['ezshaper']['step2']['download']*1000;
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$upload = $config['ezshaper']['step2']['upload']*1000;
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} else {
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$download = $upnp_config['download']*1000;
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$upload = $upnp_config['upload']*1000;
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}
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/* set upload and download bitrates */
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if($download && $upload) {
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$config_text .= "bitrate_down={$download}\n";
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$config_text .= "bitrate_up={$upload}\n";
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}
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/* enable logging of packets handled by miniupnpd rules */
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if($upnp_config['logpackets'])
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$config_text .= "packet_log=yes\n";
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/* enable system uptime instead of miniupnpd uptime */
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if($upnp_config['sysuptime'])
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$config_text .= "system_uptime=yes\n";
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/* set webgui url */
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if($config['system']['webgui']['protocol']) {
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$config_text .= "presentation_url={$config['system']['webgui']['protocol']}://{$webgui_ip}";
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if($config['system']['webgui']['port'])
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$config_text .= ":{$config['system']['webgui']['port']}";
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$config_text .= "/\n";
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}
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/* set uuid and serial */
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$config_text .= "uuid=".upnp_uuid()."\n";
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$config_text .= "serial=".strtoupper(substr(upnp_uuid(),0,8))."\n";
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/* set model number */
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$config_text .= "model_number=".exec("/bin/cat /etc/version")."\n";
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201
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/* upnp access restrictions */
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for($i=1; $i<=4; $i++) {
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if($upnp_config["permuser{$i}"])
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$config_text .= "{$upnp_config["permuser{$i}"]}\n";
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}
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if($upnp_config['permdefault'])
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$config_text .= "deny 0-65535 0.0.0.0/0 0-65535\n";
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210
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211
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/* write out the configuration */
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upnp_write_config($config_file, $config_text);
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213
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214
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/* if miniupnpd not running start it */
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215
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if(!upnp_running()) {
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upnp_notice("Starting service on interface: {$ifaces_active}");
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217
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upnp_action('start');
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}
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219
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/* or restart miniupnpd if settings were changed */
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elseif($_POST['iface_array']) {
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upnp_notice("Restarting service on interface: {$ifaces_active}");
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upnp_action('restart');
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}
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}
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}
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if(!$iface_array || !$ifaces_active) {
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228
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/* no parameters user does not want miniupnpd running */
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229
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/* lets stop the service and remove the rc file */
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230
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if(file_exists($config_file)) {
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232
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if(!$upnp_config['enable'])
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upnp_notice('Stopping service: miniupnpd disabled');
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234
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else
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235
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upnp_notice('Stopping service: no interfaces selected');
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236
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237
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upnp_action('stop');
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238
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unlink($config_file);
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239
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}
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240
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}
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241
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242
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config_unlock();
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243
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}
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244
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?>
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