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Fix determining mode for 6 GHz band when using hw_mode=any

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When 6 GHz band is specified and hw_mode parameter is set to any,
hostapd_determine_mode() may determine the wrong mode because there are
two hw modes (5 GHz and 6 GHz) with HOSTAPD_MODE_IEEE80211A. This will
cause 6 GHz AP to fail to start. Fix this by adding a check similar to
the changes in commit 99cd453720 ("hw_feature: Correctly select mode
in case of the 6 GHz band") into hostapd_determine_mode().

Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
This commit is contained in:
Xinyue Ling 2023-04-14 00:58:03 -07:00 • committed by Jouni Malinen
parent 5b568b21ae
commit f54ce74335
1 changed files with 5 additions and 1 deletions
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6
src/ap/hw_features.c
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@ -1003,7 +1003,7 @@ static int hostapd_is_usable_chans(struct hostapd_iface *iface)
static void hostapd_determine_mode(struct hostapd_iface *iface) static void hostapd_determine_mode(struct hostapd_iface *iface)
{ {
int i; int i, chan;
enum hostapd_hw_mode target_mode; enum hostapd_hw_mode target_mode;
if (iface->current_mode || if (iface->current_mode ||
@ -1022,6 +1022,10 @@ static void hostapd_determine_mode(struct hostapd_iface *iface)
mode = &iface->hw_features[i]; mode = &iface->hw_features[i];
if (mode->mode == target_mode) { if (mode->mode == target_mode) {
if (iface->freq > 0 &&
!hw_mode_get_channel(mode, iface->freq, &chan))
continue;
iface->current_mode = mode; iface->current_mode = mode;
iface->conf->hw_mode = mode->mode; iface->conf->hw_mode = mode->mode;
break; break;