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This patch fixes beacon frame sequence number generation. The code

Browse source 
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:	paradyse@gmail.com
Approved by:	re (kib)
This commit is contained in:
Adrian Chadd 2011-08-24 08:53:33 +00:00
parent 607756e9de
commit fa3324c985
1 changed files with 8 additions and 0 deletions
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8
sys/net80211/ieee80211_output.c
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@ -2792,6 +2792,8 @@ ieee80211_beacon_update(struct ieee80211_node *ni,
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_node *ni,
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);