git.openwrt.org Git - openwrt/staging/adrian.git/blob

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