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H A Dscan.cdiff 651b52254fc061f02d965524e71de4333a009a5a Sat Aug 28 18:37:51 CEST 2010 Jouni Malinen <j@w1.fi> mac80211: Add DS Parameter Set into Probe Request on 2.4 GHz

IEEE Std 802.11k-2008 added DS Parameter Set information element into
Probe Request frames as an optional information on 2.4 GHz band (and
mandatory, if radio measurements are enabled). This allows APs to
filter out Probe Request frames that may be received from neighboring
overlapping channels and by doing so, reduce the number of unnecessary
frames in the air. Make mac80211 add this IE into Probe Request frames
whenever the channel is known (i.e., whenever hwscan is not used).

Signed-off-by: Jouni Malinen <j@w1.fi>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
H A Dmain.cdiff dc9f48ce7c7d345be31208def51572a8250a4a03 Wed Oct 27 12:40:33 CEST 2010 Jouni Malinen <j@w1.fi> mac80211: Fix scan_ies_len to include DS Params

Commit 651b52254fc061f02d965524e71de4333a009a5a added DS Parameter Set
information into Probe Request frames that are transmitted on 2.4 GHz
band, but it failed to increment local->scan_ies_len to cover this new
information. This variable needs to be updated to match the maximum IE
data length so that the extra buffer need gets reduced from the driver
limit.

Signed-off-by: Jouni Malinen <j@w1.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
H A Dutil.cdiff 651b52254fc061f02d965524e71de4333a009a5a Sat Aug 28 18:37:51 CEST 2010 Jouni Malinen <j@w1.fi> mac80211: Add DS Parameter Set into Probe Request on 2.4 GHz

IEEE Std 802.11k-2008 added DS Parameter Set information element into
Probe Request frames as an optional information on 2.4 GHz band (and
mandatory, if radio measurements are enabled). This allows APs to
filter out Probe Request frames that may be received from neighboring
overlapping channels and by doing so, reduce the number of unnecessary
frames in the air. Make mac80211 add this IE into Probe Request frames
whenever the channel is known (i.e., whenever hwscan is not used).

Signed-off-by: Jouni Malinen <j@w1.fi>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
H A Dieee80211_i.hdiff 651b52254fc061f02d965524e71de4333a009a5a Sat Aug 28 18:37:51 CEST 2010 Jouni Malinen <j@w1.fi> mac80211: Add DS Parameter Set into Probe Request on 2.4 GHz

IEEE Std 802.11k-2008 added DS Parameter Set information element into
Probe Request frames as an optional information on 2.4 GHz band (and
mandatory, if radio measurements are enabled). This allows APs to
filter out Probe Request frames that may be received from neighboring
overlapping channels and by doing so, reduce the number of unnecessary
frames in the air. Make mac80211 add this IE into Probe Request frames
whenever the channel is known (i.e., whenever hwscan is not used).

Signed-off-by: Jouni Malinen <j@w1.fi>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>