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Mesh HWMP PREQ update: proxy reply only if mesh STA is a meshgate.

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* Original PREP frame is transmitted only by the target mesh STA or the
  mesh STA that is the proxy target;
* Fixed so that metric value is not over written incorrectly in
  hwmp_recv_preq for when replying back with a PREP;

Approved by:	adrian (mentor)
This commit is contained in:
Monthadar Al Jaberi 2013-02-07 21:27:40 +00:00
parent 4c4f4aa0f3
commit 6e83902004
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=246513
1 changed files with 6 additions and 3 deletions
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9
sys/net80211/ieee80211_hwmp.c
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@ -1017,10 +1017,12 @@ hwmp_recv_preq(struct ieee80211vap *vap, struct ieee80211_node *ni,
/*
* Check if the PREQ is addressed to us.
* or a Proxy currently supplied by us.
* or a Proxy currently gated by us.
*/
if (IEEE80211_ADDR_EQ(vap->iv_myaddr, PREQ_TADDR(0)) ||
(rttarg != NULL &&
(ms->ms_flags & IEEE80211_MESHFLAGS_GATE &&
rttarg != NULL &&
IEEE80211_ADDR_EQ(vap->iv_myaddr, rttarg->rt_mesh_gate) &&
rttarg->rt_flags & IEEE80211_MESHRT_FLAGS_PROXY &&
rttarg->rt_flags & IEEE80211_MESHRT_FLAGS_VALID)) {
/*
@ -1031,6 +1033,7 @@ hwmp_recv_preq(struct ieee80211vap *vap, struct ieee80211_node *ni,
prep.prep_flags = 0;
prep.prep_hopcount = 0;
prep.prep_metric = IEEE80211_MESHLMETRIC_INITIALVAL;
IEEE80211_ADDR_COPY(prep.prep_targetaddr, vap->iv_myaddr);
if (rttarg != NULL && /* if NULL it means we are the target */
rttarg->rt_flags & IEEE80211_MESHRT_FLAGS_PROXY) {
@ -1042,6 +1045,7 @@ hwmp_recv_preq(struct ieee80211vap *vap, struct ieee80211_node *ni,
/* update proxy seqno to HWMP seqno */
rttarg->rt_ext_seq = hs->hs_seq;
prep.prep_hopcount = rttarg->rt_nhops;
prep.prep_metric = rttarg->rt_metric;
IEEE80211_ADDR_COPY(prep.prep_targetaddr, rttarg->rt_mesh_gate);
}
/*
@ -1050,7 +1054,6 @@ hwmp_recv_preq(struct ieee80211vap *vap, struct ieee80211_node *ni,
prep.prep_ttl = ms->ms_ttl;
prep.prep_targetseq = hs->hs_seq;
prep.prep_lifetime = preq->preq_lifetime;
prep.prep_metric = IEEE80211_MESHLMETRIC_INITIALVAL;
IEEE80211_ADDR_COPY(prep.prep_origaddr, preq->preq_origaddr);
prep.prep_origseq = preq->preq_origseq;