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wpa_supplicant: Make GAS Address3 field selection behavior configurable

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IEEE Std 802.11-2012, 10.19 (Public Action frame addressing) specifies
that the wildcard BSSID value is used in Public Action frames that are
transmitted to a STA that is not a member of the same BSS.
wpa_supplicant used to use the actual BSSID value for all such frames
regardless of whether the destination STA is a member of the BSS.

P2P does not follow this rule, so P2P Public Action frame construction
must not be changed. However, the cases using GAS/ANQP for non-P2P
purposes should follow the standard requirements.

Unfortunately, there are deployed AP implementations that do not reply
to a GAS request sent using the wildcard BSSID value. The previously
used behavior (Address3 = AP BSSID even when not associated) continues
to be the default, but the IEEE 802.11 standard compliant addressing
behavior can now be configured with gas_address3=1.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2016-06-10 20:58:23 +03:00 • committed by Jouni Malinen
parent 739fd20cc3
commit c86bef2913
5 changed files with 32 additions and 1 deletions
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6
wpa_supplicant/wpa_supplicant.conf
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@ -440,6 +440,12 @@ fast_reauth=1
# matching network block
#auto_interworking=0
# GAS Address3 field behavior
# 0 = P2P specification (Address3 = AP BSSID); default
# 1 = IEEE 802.11 standard compliant (Address3 = Wildcard BSSID when
# sent to not-associated AP; if associated, AP BSSID)
#gas_address3=0
# credential block
#
# Each credential used for automatic network selection is configured as a set