Author: adrian
Date: Wed Aug 24 08:53:33 2011
New Revision: 225139
URL: http://svn.freebsd.org/changeset/base/225139
Log:
This patch fixes beacon frame sequence number generation. The code
didn't set a sequence number; it didn't show up earlier because the
hardware most people use for hostap (ie, AR5212 series stuff) sets the
sequence numbers up in hardware. Later hardware (AR5416, etc) which
can do 11n and aggregation require sequence numbers to be generated in
software.
Submitted by: parad...@gmail.com
Approved by: re (kib)
Modified:
head/sys/net80211/ieee80211_output.c
Modified: head/sys/net80211/ieee80211_output.c
==============================================================================
--- head/sys/net80211/ieee80211_output.c Wed Aug 24 08:38:44 2011
(r225138)
+++ head/sys/net80211/ieee80211_output.c Wed Aug 24 08:53:33 2011
(r225139)
@@ -2792,6 +2792,8 @@ ieee80211_beacon_update(struct ieee80211
struct ieee80211com *ic = ni->ni_ic;
int len_changed = 0;
uint16_t capinfo;
+ struct ieee80211_frame *wh;
+ ieee80211_seq seqno;
IEEE80211_LOCK(ic);
/*
@@ -2823,6 +2825,12 @@ ieee80211_beacon_update(struct ieee80211
return 1; /* just assume length changed */
}
+ wh = mtod(m, struct ieee80211_frame *);
+ seqno = ni->ni_txseqs[IEEE80211_NONQOS_TID]++;
+ *(uint16_t *)&wh->i_seq[0] =
+ htole16(seqno << IEEE80211_SEQ_SEQ_SHIFT);
+ M_SEQNO_SET(m, seqno);
+
/* XXX faster to recalculate entirely or just changes? */
capinfo = ieee80211_getcapinfo(vap, ni->ni_chan);
*bo->bo_caps = htole16(capinfo);
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