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mac80211: handle HT PHY BSS membership selector value correctly

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802.11n-2009 extends the supported rates element with a
magic value which can be used to prevent legacy stations
from joining the BSS.

However, this magic value is not a rate like the others
and the magic can simply be ignored/skipped at this late
stage.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>---
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Christian Lamparter 2011-10-15 00:14:49 +02:00 • committed by John W. Linville
parent fa5e91bc77
commit c74d084f91
2 changed files with 52 additions and 41 deletions
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3
include/linux/ieee80211.h
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@ -770,6 +770,9 @@ struct ieee80211_mgmt {
} u;
} __attribute__ ((packed));
/* Supported Rates value encodings in 802.11n-2009 7.3.2.2 */
#define BSS_MEMBERSHIP_SELECTOR_HT_PHY 127
/* mgmt header + 1 byte category code */
#define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)