From 53c5eb58e95004f86e65ee9fbfccbc291b139057 Mon Sep 17 00:00:00 2001 From: Jouni Malinen <j@w1.fi> Date: Fri, 22 Sep 2017 11:25:02 +0300 Subject: [PATCH 7/8] WNM: Ignore WNM-Sleep Mode Response without pending request Commit 03ed0a52393710be6bdae657d1b36efa146520e5 ('WNM: Ignore WNM-Sleep Mode Response if WNM-Sleep Mode has not been used') started ignoring the response when no WNM-Sleep Mode Request had been used during the association. This can be made tighter by clearing the used flag when successfully processing a response. This adds an additional layer of protection against unexpected retransmissions of the response frame. Signed-off-by: Jouni Malinen <j@w1.fi> --- wpa_supplicant/wnm_sta.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/wpa_supplicant/wnm_sta.c b/wpa_supplicant/wnm_sta.c index 1b3409c..67a07ff 100644 --- a/wpa_supplicant/wnm_sta.c +++ b/wpa_supplicant/wnm_sta.c @@ -260,7 +260,7 @@ static void ieee802_11_rx_wnmsleep_resp(struct wpa_supplicant *wpa_s, if (!wpa_s->wnmsleep_used) { wpa_printf(MSG_DEBUG, - "WNM: Ignore WNM-Sleep Mode Response frame since WNM-Sleep Mode has not been used in this association"); + "WNM: Ignore WNM-Sleep Mode Response frame since WNM-Sleep Mode operation has not been requested"); return; } @@ -299,6 +299,8 @@ static void ieee802_11_rx_wnmsleep_resp(struct wpa_supplicant *wpa_s, return; } + wpa_s->wnmsleep_used = 0; + if (wnmsleep_ie->status == WNM_STATUS_SLEEP_ACCEPT || wnmsleep_ie->status == WNM_STATUS_SLEEP_EXIT_ACCEPT_GTK_UPDATE) { wpa_printf(MSG_DEBUG, "Successfully recv WNM-Sleep Response " -- 2.7.4