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- From: Jouni Malinen <j@w1.fi>
- Date: Fri, 22 Sep 2017 11:25:02 +0300
- Subject: [PATCH] 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>
- ---
- --- a/wpa_supplicant/wnm_sta.c
- +++ b/wpa_supplicant/wnm_sta.c
- @@ -260,7 +260,7 @@ static void ieee802_11_rx_wnmsleep_resp(
-
- 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(
- 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 "
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