package/network/services/hostapd/patches/011-mesh-do-not-set-offchanok-on-DFS-channels-in-non-ETS.patch

   1 From af8dcbc87466ed6472850a4f1cfe252652cb3d26 Mon Sep 17 00:00:00 2001
   2 From: Peter Oh <peter.oh@bowerswilkins.com>
   3 Date: Tue, 30 Jun 2020 14:18:59 +0200
   4 Subject: [PATCH 11/19] mesh: do not set offchanok on DFS channels in non-ETSI
   5
   6 mac80211 does not allow mgmt tx to use off channel on
   7 DFS channels in non-ETSI domain, because it will invalidate
   8 CAC result on current operating channel.
   9 (mac80211 commit: 34373d12f3cbb74960a73431138ef619d857996f)
  10 Hence don't set offchanok for mgmt tx in case of DFS channels
  11 in non-ETSI.
  12
  13 Signed-off-by: Peter Oh <peter.oh@bowerswilkins.com>
  14 ---
  15  src/drivers/driver_nl80211.c | 19 +++++++++++++++++++
  16  1 file changed, 19 insertions(+)
  17
  18 --- a/src/drivers/driver_nl80211.c
  19 +++ b/src/drivers/driver_nl80211.c
  20 @@ -7788,7 +7788,11 @@ static int wpa_driver_nl80211_send_actio
  21         int ret = -1;
  22         u8 *buf;
  23         struct ieee80211_hdr *hdr;
  24 +       struct hostapd_hw_modes *modes;
  25         int offchanok = 1;
  26 +       u16 num_modes, flags;
  27 +       u8 dfs_domain;
  28 +       int i;
  29
  30         if (is_ap_interface(drv->nlmode) && (int) freq == bss->freq &&
  31             bss->beacon_set)
  32 @@ -7817,6 +7821,21 @@ static int wpa_driver_nl80211_send_actio
  33                 os_memset(bss->rand_addr, 0, ETH_ALEN);
  34         }
  35
  36 +       if (is_mesh_interface(drv->nlmode)) {
  37 +               modes = nl80211_get_hw_feature_data(bss, &num_modes,
  38 +                                                   &flags, &dfs_domain);
  39 +               if (dfs_domain != HOSTAPD_DFS_REGION_ETSI &&
  40 +                   ieee80211_is_dfs(bss->freq, modes, num_modes))
  41 +                       offchanok = 0;
  42 +               if (modes) {
  43 +                       for (i = 0; i < num_modes; i++) {
  44 +                               os_free(modes[i].channels);
  45 +                               os_free(modes[i].rates);
  46 +                       }
  47 +                       os_free(modes);
  48 +               }
  49 +       }
  50 +
  51         if (is_ap_interface(drv->nlmode) &&
  52             (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) ||
  53              (int) freq == bss->freq || drv->device_ap_sme ||