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Add hostapd options wpa_group_update_count and wpa_pairwise_update_count

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wpa_group_update_count and wpa_pairwise_update_count can now be used to
set the GTK and PTK rekey retry limits (dot11RSNAConfigGroupUpdateCount
and dot11RSNAConfigPairwiseUpdateCount). Defaults set to current
hardcoded value (4).

Some stations may suffer from frequent deauthentications due to GTK
rekey failures: EAPOL 1/2 frame is not answered during the total timeout
period of currently ~3.5 seconds. For example, a Galaxy S6 with Android
6.0.1 appears to go into power save mode for up to 5 seconds. Increasing
wpa_group_update_count to 6 fixed this issue.

Signed-off-by: Günther Kelleter <guenther.kelleter@devolo.de>
This commit is contained in:
Günther Kelleter 2017-01-05 17:00:33 +01:00 • committed by Jouni Malinen
parent e54691106b
commit 41f140d386
10 changed files with 65 additions and 21 deletions
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2
src/ap/wpa_auth.h
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@ -144,6 +144,8 @@ struct wpa_auth_config {
int wpa_strict_rekey;
int wpa_gmk_rekey;
int wpa_ptk_rekey;
u32 wpa_group_update_count;
u32 wpa_pairwise_update_count;
int rsn_pairwise;
int rsn_preauth;
int eapol_version;