package/network/services/hostapd/patches/016-mesh-fix-channel-switch-error-during-CAC.patch

   1 From 5913d6e2a741683e7c747c046f72ca790bbe1337 Mon Sep 17 00:00:00 2001
   2 From: Peter Oh <peter.oh@bowerswilkins.com>
   3 Date: Mon, 27 Aug 2018 14:28:47 -0700
   4 Subject: [PATCH 5/7] mesh: fix channel switch error during CAC
   5
   6 Mesh interface has used its channel parameters that configured
   7 during its initialization even after channel switched due to
   8 DFS radar detection during CAC which caused channel switch error.
   9 This change fixes the error by updating its channel parameters
  10 when channel's been changed from initial one.
  11
  12 Signed-off-by: Peter Oh <peter.oh@bowerswilkins.com>
  13 ---
  14  wpa_supplicant/mesh.c | 25 +++++++++++++++++++++++++
  15  1 file changed, 25 insertions(+)
  16
  17 --- a/wpa_supplicant/mesh.c
  18 +++ b/wpa_supplicant/mesh.c
  19 @@ -13,6 +13,7 @@
  20  #include "utils/uuid.h"
  21  #include "common/ieee802_11_defs.h"
  22  #include "common/wpa_ctrl.h"
  23 +#include "common/hw_features_common.h"
  24  #include "ap/sta_info.h"
  25  #include "ap/hostapd.h"
  26  #include "ap/ieee802_11.h"
  27 @@ -208,6 +209,34 @@ static void wpas_mesh_complete_cb(void *
  28                 return;
  29         }
  30
  31 +       /*
  32 +        * inspect if channel's been changed since initialized.
  33 +        * i.e. DFS radar detection
  34 +        */
  35 +       if (ifmsh->freq != params->freq.freq) {
  36 +               wpa_s->assoc_freq = ifmsh->freq;
  37 +               ssid->frequency = ifmsh->freq;
  38 +               if (hostapd_set_freq_params(&params->freq,
  39 +                               ifmsh->conf->hw_mode,
  40 +                               ifmsh->freq,
  41 +                               ifmsh->conf->channel,
  42 +                               ifmsh->conf->enable_edmg,
  43 +                               ifmsh->conf->edmg_channel,
  44 +                               ifmsh->conf->ieee80211n,
  45 +                               ifmsh->conf->ieee80211ac,
  46 +                               ifmsh->conf->ieee80211ax,
  47 +                               ifmsh->conf->secondary_channel,
  48 +                               hostapd_get_oper_chwidth(ifmsh->conf),
  49 +                               hostapd_get_oper_centr_freq_seg0_idx(ifmsh->conf),
  50 +                               hostapd_get_oper_centr_freq_seg1_idx(ifmsh->conf),
  51 +                               ifmsh->current_mode->vht_capab,
  52 +                               &ifmsh->current_mode->he_capab[IEEE80211_MODE_AP])) {
  53 +                       wpa_printf(MSG_ERROR, "Error updating mesh frequency params.");
  54 +                       wpa_supplicant_mesh_deinit(wpa_s);
  55 +                       return;
  56 +               }
  57 +       }
  58 +
  59         if (ifmsh->mconf->security != MESH_CONF_SEC_NONE &&
  60             wpas_mesh_init_rsn(wpa_s)) {
  61                 wpa_printf(MSG_ERROR,