PREP update

* Added assertion in mesh_rt_update;
* Fixed some prep propagation that where multicast, ALL PREPS ARE UNICAST;
* Fixed PREP acceptance criteria;
* Fixed some PREP debug messages;
* HWMP intermediate reply (PREP) should only be sent if we have newer
forwarding infomration (FI) about target;
* Fixed PREP propagation condition and PREP w/ AE handling;
* Ignore PREPs that have unknown originator.
* Removed old code inside PREP that was for proactive path building
to root mesh;

Other errors include:
* use seq number of target and not orig mesh STA;
* Metric is what we have stored in our FI;
* Error in amendment, Hop count is not 0 but equals FI hopcount for target;

Approved by: adrian

1 files changed, 2 insertions, 0 deletions

diff --git a/sys/net80211/ieee80211_mesh.c b/sys/net80211/ieee80211_mesh.c
index ff9abe172c28..c533491e67b3 100644
--- a/sys/net80211/ieee80211_mesh.c
+++ b/sys/net80211/ieee80211_mesh.c
@@ -239,6 +239,8 @@ ieee80211_mesh_rt_update(struct ieee80211_mesh_route *rt, int new_lifetime)
 	int timesince, now;
 	uint32_t lifetime = 0;
 
+	KASSERT(rt != NULL, ("route is NULL"));
+
 	now = ticks;
 	RT_ENTRY_LOCK(rt);