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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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define('UPNP_RCFILE', '/usr/local/etc/rc.d/miniupnpd.sh');
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8
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define('UPNP_CONFIG','/usr/local/etc/miniupnpd.conf');
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9
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function upnp_notice ($msg) { syslog(LOG_NOTICE, "miniupnpd: {$msg}"); return; }
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function upnp_warn ($msg) { syslog(LOG_WARNING, "miniupnpd: {$msg}"); return; }
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function upnp_action ($action) {
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if (file_exists(UPNP_RCFILE))
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mwexec(UPNP_RCFILE.' '.$action);
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}
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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_config ($name) {
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global $config;
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if($config['installedpackages']['miniupnpd']['config'][0]["{$name}"])
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return $config['installedpackages']['miniupnpd']['config'][0]["{$name}"];
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return NULL;
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}
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function upnp_write_config($conf_file, $conf_text) {
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$conf = fopen($conf_file, "w");
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if(!$conf) {
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upnp_warn("Could not open {$conf_file} for writing.");
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exit;
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}
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fwrite($conf, $conf_text);
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fclose($conf);
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}
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function upnp_uuid() {
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/* md5 hash of wan mac */
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$arp = explode(' ',exec('arp -an -i '.get_real_wan_interface()));
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$uuid = md5($arp[3]);
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/* put uuid in correct format 8-4-4-4-12 */
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return substr($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 $input_errors;
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config_lock();
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$configtext = "ext_ifname=".get_real_wan_interface()."\n";
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$configtext .= "port=2189\n";
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$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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$configtext .= "listening_ip={$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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$configtext .= "ext_ip=".upnp_config('overridewanip')."\n";
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/* if shaper connection speed defined use those values */
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if($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 && $upload) {
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$configtext .= "bitrate_down={$download}\n";
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$configtext .= "bitrate_up={$upload}\n";
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}
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/* enable logging of packets handled by miniupnpd rules */
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if(upnp_config('logpackets'))
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$configtext .= "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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$configtext .= "system_uptime=yes\n";
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/* set webgui url */
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if($config['system']['webgui']['protocol']) {
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$configtext .= "presentation_url=".$config['system']['webgui']['protocol']."://{$webgui_ip}";
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if($config['system']['webgui']['port'])
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$configtext .= ":".$config['system']['webgui']['port'];
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$configtext .= "/\n";
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}
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/* set uuid and serial */
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$configtext .= "uuid=".upnp_uuid()."\n";
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$configtext .= "serial=".strtoupper(substr(upnp_uuid(),0,8))."\n";
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/* set model number */
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$configtext .= "model_number=".exec("cat /etc/version")."\n";
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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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$configtext .= upnp_config("permuser{$i}")."\n";
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}
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220
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if(upnp_config('permdefault'))
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$configtext .= "deny 0-65535 0.0.0.0/0 0-65535\n";
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223
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/* generate rc file start and stop */
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$stop = <<<EOD
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if [ `pgrep miniupnpd | wc -l` != 0 ]; then
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/usr/bin/killall miniupnpd
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while [ `pgrep miniupnpd | wc -l` != 0 ]; do
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sleep 1
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done
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fi
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# Clear existing rules and rdr entries
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if [ `pfctl -aminiupnpd -sr | wc -l` != 0 ]; then
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/sbin/pfctl -aminiupnpd -Fr 2>&1 >/dev/null
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fi
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if [ `pfctl -aminiupnpd -sn | wc -l` != 0 ]; then
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/sbin/pfctl -aminiupnpd -Fn 2>&1 >/dev/null
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fi
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EOD;
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$start = $stop."\n\t/usr/local/sbin/miniupnpd -f ".UPNP_CONFIG;
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/* write out the configuration */
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conf_mount_rw();
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upnp_write_config(UPNP_CONFIG,$configtext);
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write_rcfile(array(
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'file' => 'miniupnpd.sh',
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'start' => $start,
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'stop' => $stop
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)
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);
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251
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conf_mount_ro();
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252
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253
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/* if miniupnpd not running start it */
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254
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if(!upnp_running()) {
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upnp_notice("Starting service on interface: {$ifaces_active}");
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256
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upnp_action('start');
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}
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258
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/* or restart miniupnpd if settings were changed */
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259
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elseif($_POST['iface_array']) {
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upnp_notice("Restarting service on interface: {$ifaces_active}");
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261
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upnp_action('restart');
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262
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}
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263
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}
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264
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}
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265
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266
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if(!$iface_array || !$ifaces_active) {
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267
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/* no parameters user does not want miniupnpd running */
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268
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/* lets stop the service and remove the rc file */
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269
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270
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if(file_exists(UPNP_RCFILE)) {
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271
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if(!upnp_config('enable'))
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272
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upnp_notice('Stopping service: miniupnpd disabled');
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273
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else
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274
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upnp_notice('Stopping service: no interfaces selected');
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275
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276
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upnp_action('stop');
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277
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278
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conf_mount_rw();
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279
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unlink(UPNP_RCFILE);
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280
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unlink(UPNP_CONFIG);
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281
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conf_mount_ro();
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282
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}
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283
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}
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284
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285
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config_unlock();
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286
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}
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287
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?>
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