package/network/services/hostapd/patches/011-mesh-Allow-DFS-channels-to-be-selected-if-dfs-is-ena.patch

   1 From bbaa6142eadf229334436fdbf51aa65bb819f771 Mon Sep 17 00:00:00 2001
   2 From: Peter Oh <peter.oh@bowerswilkins.com>
   3 Date: Tue, 29 May 2018 14:39:15 -0700
   4 Subject: [PATCH 11/18] mesh: Allow DFS channels to be selected if dfs is
   5  enabled
   6
   7 Note: DFS is assumed to be usable if a country code has been set
   8
   9 Signed-off-by: Benjamin Berg <benjamin@sipsolutions.net>
  10 Signed-off-by: Peter Oh <peter.oh@bowerswilkins.com>
  11 ---
  12  wpa_supplicant/wpa_supplicant.c | 24 ++++++++++++++++++------
  13  1 file changed, 18 insertions(+), 6 deletions(-)
  14
  15 --- a/wpa_supplicant/wpa_supplicant.c
  16 +++ b/wpa_supplicant/wpa_supplicant.c
  17 @@ -2090,6 +2090,8 @@ void ibss_mesh_setup_freq(struct wpa_sup
  18         struct hostapd_freq_params vht_freq;
  19         int chwidth, seg0, seg1;
  20         u32 vht_caps = 0;
  21 +       int dfs_enabled = wpa_s->conf->country[0] &&
  22 +               (wpa_s->drv_flags & WPA_DRIVER_FLAGS_RADAR);
  23
  24         freq->freq = ssid->frequency;
  25
  26 @@ -2166,8 +2168,11 @@ void ibss_mesh_setup_freq(struct wpa_sup
  27                 return;
  28
  29         /* Check primary channel flags */
  30 -       if (pri_chan->flag & (HOSTAPD_CHAN_DISABLED | HOSTAPD_CHAN_NO_IR))
  31 +       if (pri_chan->flag & HOSTAPD_CHAN_DISABLED)
  32                 return;
  33 +       if (pri_chan->flag & (HOSTAPD_CHAN_RADAR | HOSTAPD_CHAN_NO_IR))
  34 +               if (!dfs_enabled)
  35 +                       return;
  36
  37  #ifdef CONFIG_HT_OVERRIDES
  38         if (ssid->disable_ht40)
  39 @@ -2193,8 +2198,11 @@ void ibss_mesh_setup_freq(struct wpa_sup
  40                 return;
  41
  42         /* Check secondary channel flags */
  43 -       if (sec_chan->flag & (HOSTAPD_CHAN_DISABLED | HOSTAPD_CHAN_NO_IR))
  44 +       if (sec_chan->flag & HOSTAPD_CHAN_DISABLED)
  45                 return;
  46 +       if (sec_chan->flag & (HOSTAPD_CHAN_RADAR | HOSTAPD_CHAN_NO_IR))
  47 +               if (!dfs_enabled)
  48 +                       return;
  49
  50         freq->channel = pri_chan->chan;
  51
  52 @@ -2284,8 +2292,11 @@ void ibss_mesh_setup_freq(struct wpa_sup
  53                         return;
  54
  55                 /* Back to HT configuration if channel not usable */
  56 -               if (chan->flag & (HOSTAPD_CHAN_DISABLED | HOSTAPD_CHAN_NO_IR))
  57 +               if (chan->flag & HOSTAPD_CHAN_DISABLED)
  58                         return;
  59 +               if (chan->flag & (HOSTAPD_CHAN_RADAR | HOSTAPD_CHAN_NO_IR))
  60 +                       if (!dfs_enabled)
  61 +                               return;
  62         }
  63
  64         chwidth = VHT_CHANWIDTH_80MHZ;
  65 @@ -2305,10 +2316,11 @@ void ibss_mesh_setup_freq(struct wpa_sup
  66                                 if (!chan)
  67                                         continue;
  68
  69 -                               if (chan->flag & (HOSTAPD_CHAN_DISABLED |
  70 -                                                 HOSTAPD_CHAN_NO_IR |
  71 -                                                 HOSTAPD_CHAN_RADAR))
  72 +                               if (chan->flag & HOSTAPD_CHAN_DISABLED)
  73                                         continue;
  74 +                               if (chan->flag & (HOSTAPD_CHAN_RADAR | HOSTAPD_CHAN_NO_IR))
  75 +                                       if (!dfs_enabled)
  76 +                                               continue;
  77
  78                                 /* Found a suitable second segment for 80+80 */
  79                                 chwidth = VHT_CHANWIDTH_80P80MHZ;