switch-fabric: add package that handles switch-fabric features

* add support for port mirroring
* lagcp will be housed within this package aswell in future

Signed-off-by: John Crispin <john@phrozen.org>

feeds/ucentral/switch-fabric/files/usr/libexec/switch.sh

@@ -0,0 +1,23 @@
+#!/bin/sh
+
+. /lib/functions.sh
+
+port_mirror() {
+	for lan in $(ls -d /sys/class/net/lan* | cut -dn -f3 |sort -n); do
+		tc qdisc del dev lan$lan clsact
+	done
+
+	monitor=$(uci get switch.mirror.monitor)
+	analysis=$(uci get switch.mirror.analysis)
+
+	[ -n "$monitor" -a -n "$analysis" ] || return
+
+	ifconfig $analysis up
+	for port in $monitor; do
+		tc qdisc add dev $port clsact
+		tc filter add dev $port ingress matchall skip_sw action mirred egress mirror dev $analysis
+		tc filter add dev $port egress matchall skip_sw action mirred egress mirror dev $analysis
+	done
+}
+
+port_mirror