Add qemu ifup/ifdown scripts

scripts/qemu-custom-ifup

@@ -0,0 +1,27 @@
+#!/bin/bash
+# This script adds an specified tap interface to first bridge
+# found with the name containing br0
+
+if [[ $EUID != 0 ]]; then
+	echo "This script needs sudo priveleges"
+	echo "Exiting..."
+	exit 1
+fi
+
+for INT in $(ls /sys/class/net); do
+    if [[ $INT == *"br0"*  && -d /sys/class/net/$INT/bridge/. ]]; then
+        BRIDGE="$INT"
+        break
+    fi
+done
+
+if [[ -z $BRIDGE ]]; then
+    echo 'No bridge INTerfaces seen'
+    exit 1
+fi
+
+/sbin/ip tuntap add dev $1 mode tap
+/sbin/ip link set $1 up
+
+/sbin/ip link set dev $1 master $BRIDGE
+