From 28b0479c0665e6e60305ebdc7f23b878d7e460c6 Mon Sep 17 00:00:00 2001
From: Niclas Finne <nfi@sics.se>
Date: Wed, 15 Jun 2011 17:51:57 +0200
Subject: [PATCH] Added optional address filtering

---
 core/net/mac/nullrdc.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/core/net/mac/nullrdc.c b/core/net/mac/nullrdc.c
index 6b8cbe2e3..b57dcb729 100644
--- a/core/net/mac/nullrdc.c
+++ b/core/net/mac/nullrdc.c
@@ -52,6 +52,12 @@
 #define PRINTF(...)
 #endif
 
+#ifdef NULLRDC_CONF_ADDRESS_FILTER
+#define NULLRDC_ADDRESS_FILTER NULLRDC_CONF_ADDRESS_FILTER
+#else
+#define NULLRDC_ADDRESS_FILTER 1
+#endif /* NULLRDC_CONF_ADDRESS_FILTER */
+
 #ifndef NULLRDC_802154_AUTOACK
 #ifdef NULLRDC_CONF_802154_AUTOACK
 #define NULLRDC_802154_AUTOACK NULLRDC_CONF_802154_AUTOACK
@@ -206,6 +212,13 @@ packet_input(void)
 #endif /* NULLRDC_802154_AUTOACK */
   if(NETSTACK_FRAMER.parse() == 0) {
     PRINTF("nullrdc: failed to parse %u\n", packetbuf_datalen());
+#if NULLRDC_ADDRESS_FILTER
+  } else if(!rimeaddr_cmp(packetbuf_addr(PACKETBUF_ADDR_RECEIVER),
+                                         &rimeaddr_node_addr) &&
+            !rimeaddr_cmp(packetbuf_addr(PACKETBUF_ADDR_RECEIVER),
+                          &rimeaddr_null)) {
+    PRINTF("nullrdc: not for us\n");
+#endif /* NULLRDC_ADDRESS_FILTER */
   } else {
 #if NULLRDC_802154_AUTOACK || NULLRDC_802154_AUTOACK_HW
     /* Check for duplicate packet by comparing the sequence number