src/patches/wpa_supplicant/0007-WNM-Ignore-WNM-Sleep-Mode-Response-without-pending-r.patch

   1 From b839814391abb4f95486ef2e24eb5498267eccf5 Mon Sep 17 00:00:00 2001
   2 From: Jouni Malinen <j@w1.fi>
   3 Date: Fri, 22 Sep 2017 11:25:02 +0300
   4 Subject: [PATCH 7/8] WNM: Ignore WNM-Sleep Mode Response without pending
   5  request
   6
   7 Commit 03ed0a52393710be6bdae657d1b36efa146520e5 ('WNM: Ignore WNM-Sleep
   8 Mode Response if WNM-Sleep Mode has not been used') started ignoring the
   9 response when no WNM-Sleep Mode Request had been used during the
  10 association. This can be made tighter by clearing the used flag when
  11 successfully processing a response. This adds an additional layer of
  12 protection against unexpected retransmissions of the response frame.
  13
  14 Signed-off-by: Jouni Malinen <j@w1.fi>
  15 ---
  16  wpa_supplicant/wnm_sta.c | 4 +++-
  17  1 file changed, 3 insertions(+), 1 deletion(-)
  18
  19 diff --git a/wpa_supplicant/wnm_sta.c b/wpa_supplicant/wnm_sta.c
  20 index 7339ed2..28346ea 100644
  21 --- a/wpa_supplicant/wnm_sta.c
  22 +++ b/wpa_supplicant/wnm_sta.c
  23 @@ -260,7 +260,7 @@ static void ieee802_11_rx_wnmsleep_resp(struct wpa_supplicant *wpa_s,
  24
  25         if (!wpa_s->wnmsleep_used) {
  26                 wpa_printf(MSG_DEBUG,
  27 -                          "WNM: Ignore WNM-Sleep Mode Response frame since WNM-Sleep Mode has not been used in this association");
  28 +                          "WNM: Ignore WNM-Sleep Mode Response frame since WNM-Sleep Mode operation has not been requested");
  29                 return;
  30         }
  31
  32 @@ -299,6 +299,8 @@ static void ieee802_11_rx_wnmsleep_resp(struct wpa_supplicant *wpa_s,
  33                 return;
  34         }
  35
  36 +       wpa_s->wnmsleep_used = 0;
  37 +
  38         if (wnmsleep_ie->status == WNM_STATUS_SLEEP_ACCEPT ||
  39             wnmsleep_ie->status == WNM_STATUS_SLEEP_EXIT_ACCEPT_GTK_UPDATE) {
  40                 wpa_printf(MSG_DEBUG, "Successfully recv WNM-Sleep Response "
  41 --
  42 2.7.4
  43