TT#146201 don't special-case RTCP rule

Don't explicitly set the "non forwarding" flag just because an RTCP
stream is being kernelised. The distinction between RTP and RTCP,
together with zero-length outputs setting "non forwarding" automatically
takes care of it.

Change-Id: Ie363fc369b7ace21ed172a0ec141c83afd1ba21b

daemon/media_socket.c

@@ -1420,12 +1420,6 @@ static const char *kernelize_one(struct rtpengine_target_info *reti, GQueue *out
 	if (sink_handler)
 		sink_handler->kernel_output_idx = -1;
 
-	if (!PS_ISSET(stream, RTP)) {
-		if (PS_ISSET(stream, RTCP) && PS_ISSET(stream, STRICT_SOURCE))
-			non_forwarding = true; // use the kernel's source checking capability
-		else
-			return NULL;
-	}
 	if (MEDIA_ISSET(media, BLACKHOLE))
 		blackhole = true;
 	else if (!sink_handler)

kernel-module/xt_RTPENGINE.c

@@ -5319,6 +5319,10 @@ static unsigned int rtpengine46(struct sk_buff *skb, struct rtpengine_table *t,
 	// output
 	start_idx = 0;
 	end_idx = g->num_rtp_destinations;
+
+	if (start_idx == end_idx)
+		goto out; // pass to userspace
+
 	for (i = start_idx; i < end_idx; i++) {
 		struct rtpengine_output *o = &g->outputs[i];
 		// do we need a copy?