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

   1 From 89fa0d75fb1be82330258082ed3d7fd452eb6076 Mon Sep 17 00:00:00 2001
   2 From: Peter Oh <peter.oh@bowerswilkins.com>
   3 Date: Mon, 27 Aug 2018 14:28:45 -0700
   4 Subject: [PATCH 3/7] mesh: Allow DFS channels to be selected if dfs is enabled
   5
   6 Note: DFS is assumed to be usable if a country code has been set
   7
   8 Signed-off-by: Benjamin Berg <benjamin@sipsolutions.net>
   9 Signed-off-by: Peter Oh <peter.oh@bowerswilkins.com>
  10 ---
  11  wpa_supplicant/wpa_supplicant.c | 24 ++++++++++++++++++------
  12  1 file changed, 18 insertions(+), 6 deletions(-)
  13
  14 --- a/wpa_supplicant/wpa_supplicant.c
  15 +++ b/wpa_supplicant/wpa_supplicant.c
  16 @@ -2345,6 +2345,8 @@ void ibss_mesh_setup_freq(struct wpa_sup
  17         int chwidth, seg0, seg1;
  18         u32 vht_caps = 0;
  19         int is_24ghz;
  20 +       int dfs_enabled = wpa_s->conf->country[0] &&
  21 +               (wpa_s->drv_flags & WPA_DRIVER_FLAGS_RADAR);
  22
  23         freq->freq = ssid->frequency;
  24
  25 @@ -2432,8 +2434,11 @@ void ibss_mesh_setup_freq(struct wpa_sup
  26                 return;
  27
  28         /* Check primary channel flags */
  29 -       if (pri_chan->flag & (HOSTAPD_CHAN_DISABLED | HOSTAPD_CHAN_NO_IR))
  30 +       if (pri_chan->flag & HOSTAPD_CHAN_DISABLED)
  31                 return;
  32 +       if (pri_chan->flag & (HOSTAPD_CHAN_RADAR | HOSTAPD_CHAN_NO_IR))
  33 +               if (!dfs_enabled)
  34 +                       return;
  35
  36         freq->channel = pri_chan->chan;
  37
  38 @@ -2466,8 +2471,11 @@ void ibss_mesh_setup_freq(struct wpa_sup
  39                 return;
  40
  41         /* Check secondary channel flags */
  42 -       if (sec_chan->flag & (HOSTAPD_CHAN_DISABLED | HOSTAPD_CHAN_NO_IR))
  43 +       if (sec_chan->flag & HOSTAPD_CHAN_DISABLED)
  44                 return;
  45 +       if (sec_chan->flag & (HOSTAPD_CHAN_RADAR | HOSTAPD_CHAN_NO_IR))
  46 +               if (!dfs_enabled)
  47 +                       return;
  48
  49         if (ht40 == -1) {
  50                 if (!(pri_chan->flag & HOSTAPD_CHAN_HT40MINUS))
  51 @@ -2560,8 +2568,11 @@ skip_ht40:
  52                         return;
  53
  54                 /* Back to HT configuration if channel not usable */
  55 -               if (chan->flag & (HOSTAPD_CHAN_DISABLED | HOSTAPD_CHAN_NO_IR))
  56 +               if (chan->flag & HOSTAPD_CHAN_DISABLED)
  57                         return;
  58 +               if (chan->flag & (HOSTAPD_CHAN_RADAR | HOSTAPD_CHAN_NO_IR))
  59 +                       if (!dfs_enabled)
  60 +                               return;
  61         }
  62
  63         chwidth = CHANWIDTH_80MHZ;
  64 @@ -2581,10 +2592,11 @@ skip_ht40:
  65                                 if (!chan)
  66                                         continue;
  67
  68 -                               if (chan->flag & (HOSTAPD_CHAN_DISABLED |
  69 -                                                 HOSTAPD_CHAN_NO_IR |
  70 -                                                 HOSTAPD_CHAN_RADAR))
  71 +                               if (chan->flag & HOSTAPD_CHAN_DISABLED)
  72                                         continue;
  73 +                               if (chan->flag & (HOSTAPD_CHAN_RADAR | HOSTAPD_CHAN_NO_IR))
  74 +                                       if (!dfs_enabled)
  75 +                                               continue;
  76
  77                                 /* Found a suitable second segment for 80+80 */
  78                                 chwidth = CHANWIDTH_80P80MHZ;