From b6c54faf9def94f67ad277ea5a1490e3cee26c16 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Dawans?= <sebastien.dawans@cetic.be>
Date: Tue, 5 Feb 2013 15:43:13 +0100
Subject: [PATCH] Adds default route lifetime update in RPL DIO processing

---
 core/net/rpl/rpl-dag.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/core/net/rpl/rpl-dag.c b/core/net/rpl/rpl-dag.c
index 2f92498a7..16ab54eaf 100644
--- a/core/net/rpl/rpl-dag.c
+++ b/core/net/rpl/rpl-dag.c
@@ -1223,6 +1223,9 @@ rpl_process_dio(uip_ipaddr_t *from, rpl_dio_t *dio)
       RPL_LOLLIPOP_INCREMENT(instance->dtsn_out);
       rpl_schedule_dao(instance);
     }
+    /* We received a new DIO from our preferred parent.
+     * Call uip_ds6_defrt_add to set a fresh value for the lifetime counter */
+    uip_ds6_defrt_add(from, RPL_LIFETIME(instance, instance->default_lifetime));
   }
   p->dtsn = dio->dtsn;
 }