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