package/network/services/hostapd/patches/010-mesh-Allow-DFS-channels-to-be-selected-if-dfs-is-ena.patch

   1 From 8de8cd8380af0c43d4fde67a668d79ef73b26b26 Mon Sep 17 00:00:00 2001
   2 From: Peter Oh <peter.oh@bowerswilkins.com>
   3 Date: Tue, 30 Jun 2020 14:18:58 +0200
   4 Subject: [PATCH 10/19] 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 | 25 +++++++++++++++++++------
  13  1 file changed, 19 insertions(+), 6 deletions(-)
  14
  15 --- a/wpa_supplicant/wpa_supplicant.c
  16 +++ b/wpa_supplicant/wpa_supplicant.c
  17 @@ -2349,6 +2349,8 @@ void ibss_mesh_setup_freq(struct wpa_sup
  18         int chwidth, seg0, seg1;
  19         u32 vht_caps = 0;
  20         int is_24ghz;
  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 @@ -2436,8 +2438,11 @@ 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         freq->channel = pri_chan->chan;
  38
  39 @@ -2470,8 +2475,11 @@ 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         if (ht40 == -1) {
  51                 if (!(pri_chan->flag & HOSTAPD_CHAN_HT40MINUS))
  52 @@ -2564,8 +2572,11 @@ skip_ht40:
  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 = CHANWIDTH_80MHZ;
  65 @@ -2585,10 +2596,12 @@ skip_ht40:
  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 |
  75 +                                                 HOSTAPD_CHAN_NO_IR))
  76 +                                       if (!dfs_enabled)
  77 +                                               continue;
  78
  79                                 /* Found a suitable second segment for 80+80 */
  80                                 chwidth = CHANWIDTH_80P80MHZ;