From 3f8e3a5486a9fa5e0d37021c47f8f673d32867c8 Mon Sep 17 00:00:00 2001 From: Naftali Goldstein Date: Thu, 8 Jun 2017 11:17:55 +0300 Subject: [PATCH] ap: Fix invalid HT40 channel pair fallback In case of incorrect HT40 configuration as part of an attempt to create a 80 MHz AP, iface->conf->vht_oper_centr_freq_seg0_idx and iface->conf->vht_oper_centr_freq_seg1_idx are zero'ed, but iface->conf->vht_oper_chwidth remains VHT_CHANWIDTH_80MHZ. This causes the logic in dfs_get_start_chan_idx to fail. Fix this by setting iface->conf->vht_oper_chwidth to VHT_CHANWIDTH_USE_HT when zero'ing the center frequency parameters. Signed-off-by: Naftali Goldstein --- src/ap/hw_features.c | 1 + 1 file changed, 1 insertion(+) diff --git a/src/ap/hw_features.c b/src/ap/hw_features.c index a53fd2341..84e74eef0 100644 --- a/src/ap/hw_features.c +++ b/src/ap/hw_features.c @@ -334,6 +334,7 @@ static void ieee80211n_check_scan(struct hostapd_iface *iface) iface->conf->secondary_channel = 0; iface->conf->vht_oper_centr_freq_seg0_idx = 0; iface->conf->vht_oper_centr_freq_seg1_idx = 0; + iface->conf->vht_oper_chwidth = VHT_CHANWIDTH_USE_HT; res = 1; wpa_printf(MSG_INFO, "Fallback to 20 MHz"); } -- 2.47.3