OpenWrt – Rev 3
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From 24fc73b2470ff79cd8c92e029ca785c8e95a204c Mon Sep 17 00:00:00 2001
From: Peter Oh <peter.oh@bowerswilkins.com>
Date: Wed, 18 Apr 2018 14:14:19 -0700
Subject: [PATCH 2/2] mesh: implement use of VHT20 config in mesh mode
mesh in VHT mode is supposed to be able to use any bandwidth
that 11ac supports, but we don't have a way to set VHT20
although there are parameters that are supposed to be used.
This patch along with the patch of
"mesh: add VHT_CHANWIDTH_USE_HT to max_oper_chwidth" makes mesh
available to use of any bandwidth using combination of
existing parameters like below shown.
VHT80:
default
do not set any parameters
VHT40:
max_oper_chwidth = 0
VHT20:
max_oper_chwidth=0
disable_ht40=1
HT40:
disable_vht = 1
HT20:
disable_ht40 = 1
disable HT:
disable_ht = 1
Signed-off-by: Peter Oh <peter.oh@bowerswilkins.com>
---
wpa_supplicant/wpa_supplicant.c | 18 +++++++++++++-----
1 file changed, 13 insertions(+), 5 deletions(-)
--- a/wpa_supplicant/wpa_supplicant.c
+++ b/wpa_supplicant/wpa_supplicant.c
@@ -2117,9 +2117,15 @@ void ibss_mesh_setup_freq(struct wpa_sup
if (!dfs_enabled)
return;
+ freq->channel = pri_chan->chan;
+
#ifdef CONFIG_HT_OVERRIDES
- if (ssid->disable_ht40)
- return;
+ if (ssid->disable_ht40) {
+ if (ssid->disable_vht)
+ return;
+ else
+ goto skip_ht40;
+ }
#endif /* CONFIG_HT_OVERRIDES */
/* Check/setup HT40+/HT40- */
@@ -2147,8 +2153,6 @@ void ibss_mesh_setup_freq(struct wpa_sup
if (!dfs_enabled)
return;
- freq->channel = pri_chan->chan;
-
if (ht40 == -1) {
if (!(pri_chan->flag & HOSTAPD_CHAN_HT40MINUS))
return;
@@ -2192,6 +2196,7 @@ void ibss_mesh_setup_freq(struct wpa_sup
wpa_scan_results_free(scan_res);
}
+skip_ht40:
wpa_printf(MSG_DEBUG,
"IBSS/mesh: setup freq channel %d, sec_channel_offset %d",
freq->channel, freq->sec_channel_offset);
@@ -2287,7 +2292,10 @@ void ibss_mesh_setup_freq(struct wpa_sup
}
} else if (ssid->max_oper_chwidth == VHT_CHANWIDTH_USE_HT) {
chwidth = VHT_CHANWIDTH_USE_HT;
- seg0 = vht80[j] + 2;
+ if (ssid->disable_ht40)
+ seg0 = 0;
+ else
+ seg0 = vht80[j] + 2;
}
if (hostapd_set_freq_params(&vht_freq, mode->mode, freq->freq,