interfaces: replace netgraph functions with portable alternatives

(cherry picked from commit 5adfd6bf)

src/etc/inc/interfaces.inc

@@ -202,7 +202,7 @@ function interface_netgraph_needed($interface = "wan")
 
     if (!$found) {
         $realif = get_real_interface($interface);
-        mwexecf('/usr/sbin/ngctl msg %s: detach', array($realif));
+        legacy_netgraph_detach($realif);
     }
 }
 
@@ -299,7 +299,7 @@ function interface_vlan_configure(&$vlan)
     } else {
         $tmpvlanif = legacy_interface_create('vlan');
         legacy_interface_rename($tmpvlanif, $vlanif);
-        mwexecf('/usr/sbin/ngctl name %s: %s', array($tmpvlanif, $vlanif));
+        legacy_netgraph_rename($tmpvlanif, $vlanif);
     }
 
     legacy_vlan_tag($vlanif, $if, $tag);
@@ -344,8 +344,8 @@ function interface_qinq_configure(&$vlan, $fd = null)
 
     /* make sure the parent is converted to ng_vlan(4) and is up */
     interfaces_bring_up($qinqif);
+    legacy_netgraph_attach($qinqif);
 
-    pfSense_ngctl_attach(".", $qinqif);
     if (!empty($vlanif) && does_interface_exist($vlanif)) {
         fwrite($fd, "shutdown {$qinqif}qinq:\n");
         exec("/usr/sbin/ngctl msg {$qinqif}qinq: gettable", $result);
@@ -1614,7 +1614,7 @@ function interface_ppps_configure($interface)
             case "pppoe":
                 /* Bring the parent interface up */
                 interfaces_bring_up($port);
-                pfSense_ngctl_attach(".", $port);
+                legacy_netgraph_attach($port);
                 /* Enable setautosrc to automatically change mac address if parent interface's changes */
                 mwexecf('/usr/sbin/ngctl msg %s: setautosrc 1', array($port));
                 break;
@@ -1637,7 +1637,7 @@ function interface_ppps_configure($interface)
                     log_error(sprintf(gettext('Could not get a PPTP/L2TP Remote IP address from %s for %s in interfaces_ppps_configure.'), $dhcp_gateway, $gway));
                     return 0;
                 }
-                pfSense_ngctl_attach(".", $port);
+                legacy_netgraph_attach($port);
                 break;
             case "ppp":
                 if (!file_exists("{$port}")) {

src/etc/inc/plugins.inc.d/vpn.inc

@@ -302,7 +302,7 @@ EOD;
       chmod('/var/etc/pptp-vpn/mpd.secret', 0600);
 
       /* fixed to WAN elsewhere, no need to extend, but at least make it work */
-      pfSense_ngctl_attach('.', get_real_interface('wan'));
+      legacy_netgraph_attach(get_real_interface('wan'));
 
       mwexec('/usr/local/sbin/mpd4 -b -d /var/etc/pptp-vpn -p /var/run/pptp-vpn.pid -s pptps pptps');
 
@@ -541,7 +541,7 @@ EOD;
         chmod("/var/etc/pppoe{$pppoecfg['pppoeid']}-vpn/mpd.secret", 0600);
       }
 
-      pfSense_ngctl_attach(".", $pppoe_interface);
+      legacy_netgraph_attach($pppoe_interface);
 
       mwexec("/usr/local/sbin/mpd4 -b -d /var/etc/pppoe{$pppoecfg['pppoeid']}-vpn -p /var/run/pppoe{$pppoecfg['pppoeid']}-vpn.pid -s poes poes");
 
@@ -730,7 +730,7 @@ EOD;
       unset($mpdsecret);
       chmod('/var/etc/l2tp-vpn/mpd.secret', 0600);
 
-      pfSense_ngctl_attach('.', get_real_interface($l2tpcfg['interface']));
+      legacy_netgraph_attach(get_real_interface($l2tpcfg['interface']));
 
       mwexec('/usr/local/sbin/mpd4 -b -d /var/etc/l2tp-vpn -p /var/run/l2tp-vpn.pid -s l2tps l2tps');