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Update supported channel width set (HT40) after channel switch

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hostapd should update Supported Channel Width Set of HT Capability
Information field after channel switching done. Otherwise, it would
continue to use the old setting.

Signed-off-by: peterhuang <peterhuang@realtek.com>
This commit is contained in:
peterhuang 2021-08-18 18:48:53 +08:00 committed by Jouni Malinen
parent ff7e403f06
commit bc24a8a09e
2 changed files with 20 additions and 0 deletions
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6
src/ap/drv_callbacks.c
View file

@ -957,6 +957,12 @@ void hostapd_event_ch_switch(struct hostapd_data *hapd, int freq, int ht,
hapd->iconf->ch_switch_vht_config = 0; hapd->iconf->ch_switch_vht_config = 0;
hapd->iconf->ch_switch_he_config = 0; hapd->iconf->ch_switch_he_config = 0;
if (width == CHAN_WIDTH_40 || width == CHAN_WIDTH_80 ||
width == CHAN_WIDTH_80P80 || width == CHAN_WIDTH_160)
hapd->iconf->ht_capab |= HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET;
else if (width == CHAN_WIDTH_20 || width == CHAN_WIDTH_20_NOHT)
hapd->iconf->ht_capab &= ~HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET;
hapd->iconf->secondary_channel = offset; hapd->iconf->secondary_channel = offset;
hostapd_set_oper_chwidth(hapd->iconf, chwidth); hostapd_set_oper_chwidth(hapd->iconf, chwidth);
hostapd_set_oper_centr_freq_seg0_idx(hapd->iconf, seg0_idx); hostapd_set_oper_centr_freq_seg0_idx(hapd->iconf, seg0_idx);

14
src/ap/hostapd.c
View file

@ -3461,6 +3461,20 @@ static int hostapd_change_config_freq(struct hostapd_data *hapd,
NULL)) NULL))
return -1; return -1;
switch (params->bandwidth) {
case 0:
case 20:
conf->ht_capab &= ~HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET;
break;
case 40:
case 80:
case 160:
conf->ht_capab |= HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET;
break;
default:
return -1;
}
switch (params->bandwidth) { switch (params->bandwidth) {
case 0: case 0:
case 20: case 20: