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2025-06-24 16:03:39 +02:00
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package/network/services/hostapd/patches/016-mesh-fix-channel-switch-error-during-CAC.patch Normal file
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@@ -0,0 +1,59 @@
From 5913d6e2a741683e7c747c046f72ca790bbe1337 Mon Sep 17 00:00:00 2001
From: Peter Oh <peter.oh@bowerswilkins.com>
Date: Mon, 27 Aug 2018 14:28:47 -0700
Subject: [PATCH 5/7] mesh: fix channel switch error during CAC
Mesh interface has used its channel parameters that configured
during its initialization even after channel switched due to
DFS radar detection during CAC which caused channel switch error.
This change fixes the error by updating its channel parameters
when channel's been changed from initial one.
Signed-off-by: Peter Oh <peter.oh@bowerswilkins.com>
---
wpa_supplicant/mesh.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
--- a/wpa_supplicant/mesh.c
+++ b/wpa_supplicant/mesh.c
@@ -13,6 +13,7 @@
#include "utils/uuid.h"
#include "common/ieee802_11_defs.h"
#include "common/wpa_ctrl.h"
+#include "common/hw_features_common.h"
#include "ap/sta_info.h"
#include "ap/hostapd.h"
#include "ap/ieee802_11.h"
@@ -204,6 +205,32 @@ static void wpas_mesh_complete_cb(void *
return;
}
+ /*
+ * inspect if channel's been changed since initialized.
+ * i.e. DFS radar detection
+ */
+ if (ifmsh->freq != params->freq.freq) {
+ wpa_s->assoc_freq = ifmsh->freq;
+ ssid->frequency = ifmsh->freq;
+ if (hostapd_set_freq_params(&params->freq,
+ ifmsh->conf->hw_mode,
+ ifmsh->freq,
+ ifmsh->conf->channel,
+ ifmsh->conf->ieee80211n,
+ ifmsh->conf->ieee80211ac,
+ ifmsh->conf->ieee80211ax,
+ ifmsh->conf->secondary_channel,
+ hostapd_get_oper_chwidth(ifmsh->conf),
+ hostapd_get_oper_centr_freq_seg0_idx(ifmsh->conf),
+ hostapd_get_oper_centr_freq_seg1_idx(ifmsh->conf),
+ ifmsh->current_mode->vht_capab,
+ &ifmsh->current_mode->he_capab[IEEE80211_MODE_AP])) {
+ wpa_printf(MSG_ERROR, "Error updating mesh frequency params.");
+ wpa_supplicant_mesh_deinit(wpa_s);
+ return;
+ }
+ }
+
if (ifmsh->mconf->security != MESH_CONF_SEC_NONE &&
wpas_mesh_init_rsn(wpa_s)) {
wpa_printf(MSG_ERROR,