(legacy) fix media selection in interfaces.php

src/www/interfaces.php

@@ -1323,15 +1323,18 @@ if (isset($a_interfaces[$if]['wireless'])) {
 
 // Find all possible media options for the interface
 $mediaopts_list = array();
-exec("/sbin/ifconfig -m {$pconfig['if']} | grep \"media \"", $mediaopts);
-foreach ($mediaopts as $mediaopt){
-    preg_match("/media (.*)/", $mediaopt, $matches);
-    if (preg_match("/(.*) mediaopt (.*)/", $matches[1], $matches1)){
-        // there is media + mediaopt like "media 1000baseT mediaopt full-duplex"
-        array_push($mediaopts_list, $matches1[1] . " " . $matches1[2]);
-    } else {
-        // there is only media like "media 1000baseT"
-        array_push($mediaopts_list, $matches[1]);
+$optlist_intf = get_parent_interface($pconfig['if']);
+if (count($optlist_intf) > 0) {
+    exec("/sbin/ifconfig -m {$optlist_intf[0]} | grep \"media \"", $mediaopts);
+    foreach ($mediaopts as $mediaopt){
+        preg_match("/media (.*)/", $mediaopt, $matches);
+        if (preg_match("/(.*) mediaopt (.*)/", $matches[1], $matches1)){
+            // there is media + mediaopt like "media 1000baseT mediaopt full-duplex"
+            array_push($mediaopts_list, $matches1[1] . " " . $matches1[2]);
+        } else {
+            // there is only media like "media 1000baseT"
+            array_push($mediaopts_list, $matches[1]);
+        }
     }
 }