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Date:      Tue, 1 May 2012 15:58:10 +0000 (UTC)
From:      Monthadar Al Jaberi <monthadar@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   svn commit: r234879 - head/sys/net80211
Message-ID:  <201205011558.q41FwAkY033089@svn.freebsd.org>
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Author: monthadar
Date: Tue May  1 15:58:10 2012
New Revision: 234879
URL: http://svn.freebsd.org/changeset/base/234879

Log:
  Added route lifetime update for destination and source mesh along a mesh path;
  
   * In mesh_recv_indiv_data_to_fwd update route entry for both meshDA and meshSA;
   * In mesh_recv_indiv_data_to_me update route entry for meshSA;
   * in ieee80211_mesh_rt_update put code so that a proxy entry that is gated
   by us (number of hops == 0) is never invalidated;
   * Fixed so that we always call ieee80211_mesh_rt_update with lifetime in ms;
  
  Approved by: adrian

Modified:
  head/sys/net80211/ieee80211_mesh.c

Modified: head/sys/net80211/ieee80211_mesh.c
==============================================================================
--- head/sys/net80211/ieee80211_mesh.c	Tue May  1 15:56:26 2012	(r234878)
+++ head/sys/net80211/ieee80211_mesh.c	Tue May  1 15:58:10 2012	(r234879)
@@ -241,6 +241,13 @@ ieee80211_mesh_rt_update(struct ieee8021
 
 	now = ticks;
 	RT_ENTRY_LOCK(rt);
+
+	/* dont clobber a proxy entry gated by us */
+	if (rt->rt_flags & IEEE80211_MESHRT_FLAGS_PROXY && rt->rt_nhops == 0) {
+		RT_ENTRY_UNLOCK(rt);
+		return rt->rt_lifetime;
+	}
+
 	timesince = ticks_to_msecs(now - rt->rt_updtime);
 	rt->rt_updtime = now;
 	if (timesince >= rt->rt_lifetime) {
@@ -1115,16 +1122,31 @@ static int
 mesh_recv_indiv_data_to_fwrd(struct ieee80211vap *vap, struct mbuf *m,
     struct ieee80211_frame *wh, const struct ieee80211_meshcntl *mc)
 {
+	struct ieee80211_qosframe_addr4 *qwh;
+	struct ieee80211_mesh_state *ms = vap->iv_mesh;
+	struct ieee80211_mesh_route *rt_meshda, *rt_meshsa;
+
+	qwh = (struct ieee80211_qosframe_addr4 *)wh;
 
 	/*
 	 * TODO:
 	 * o verify addr2 is  a legitimate transmitter
-	 * o set lifetime of addr3 to initial value
-	 * o set lifetime of addr4 to initial value
 	 * o lifetime of precursor of addr3 (addr2) is max(init, curr)
 	 * o lifetime of precursor of addr4 (nexthop) is max(init, curr)
 	 */
 
+	/* set lifetime of addr3 (meshDA) to initial value */
+	rt_meshda = ieee80211_mesh_rt_find(vap, qwh->i_addr3);
+	KASSERT(rt_meshda != NULL, ("no route"));
+	ieee80211_mesh_rt_update(rt_meshda, ticks_to_msecs(
+	    ms->ms_ppath->mpp_inact));
+
+	/* set lifetime of addr4 (meshSA) to initial value */
+	rt_meshsa = ieee80211_mesh_rt_find(vap, qwh->i_addr4);
+	KASSERT(rt_meshsa != NULL, ("no route"));
+	ieee80211_mesh_rt_update(rt_meshsa, ticks_to_msecs(
+	    ms->ms_ppath->mpp_inact));
+
 	mesh_forward(vap, m, mc);
 	return (1); /* dont process locally */
 }
@@ -1144,6 +1166,7 @@ mesh_recv_indiv_data_to_me(struct ieee80
 {
 	struct ieee80211_qosframe_addr4 *qwh;
 	const struct ieee80211_meshcntl_ae10 *mc10;
+	struct ieee80211_mesh_state *ms = vap->iv_mesh;
 	struct ieee80211_mesh_route *rt;
 	int ae;
 
@@ -1153,10 +1176,15 @@ mesh_recv_indiv_data_to_me(struct ieee80
 	/*
 	 * TODO:
 	 * o verify addr2 is  a legitimate transmitter
-	 * o set lifetime of addr4 to initial value
 	 * o lifetime of precursor entry is max(init, curr)
 	 */
 
+	/* set lifetime of addr4 (meshSA) to initial value */
+	rt = ieee80211_mesh_rt_find(vap, qwh->i_addr4);
+	KASSERT(rt != NULL, ("no route"));
+	ieee80211_mesh_rt_update(rt, ticks_to_msecs(ms->ms_ppath->mpp_inact));
+	rt = NULL;
+
 	ae = mc10->mc_flags & IEEE80211_MESH_AE_MASK;
 	KASSERT(ae == IEEE80211_MESH_AE_00 ||
 	    ae == IEEE80211_MESH_AE_10, ("bad AE %d", ae));
@@ -1673,7 +1701,8 @@ mesh_recv_mgmt(struct ieee80211_node *ni
 				rt = ieee80211_mesh_rt_find(vap, wh->i_addr2);
 				if(rt != NULL) {
 					ieee80211_mesh_rt_update(rt,
-					    ms->ms_ppath->mpp_inact);
+					    ticks_to_msecs(
+					    ms->ms_ppath->mpp_inact));
 				}
 				break;
 			}

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