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AP: Verify that HT40 secondary channel is supported

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Refuse to enable HT40 mode AP unless both the primary and secondary
channels are enabled for AP use.
This commit is contained in:
Jouni Malinen 2010-11-12 18:31:56 +02:00 committed by Jouni Malinen
parent 5122242925
commit 8ea3dd21d2
1 changed files with 26 additions and 0 deletions
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26
src/ap/hw_features.c
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@ -642,6 +642,32 @@ int hostapd_select_hw_mode(struct hostapd_iface *iface)
break;
}
}
if (ok && iface->conf->secondary_channel) {
int sec_ok = 0;
int sec_chan = iface->conf->channel +
iface->conf->secondary_channel * 4;
for (j = 0; j < iface->current_mode->num_channels; j++) {
struct hostapd_channel_data *chan =
&iface->current_mode->channels[j];
if (!(chan->flag & HOSTAPD_CHAN_DISABLED) &&
(chan->chan == sec_chan)) {
sec_ok = 1;
break;
}
}
if (!sec_ok) {
hostapd_logger(iface->bss[0], NULL,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_WARNING,
"Configured HT40 secondary channel "
"(%d) not found from the channel list "
"of current mode (%d) %s",
sec_chan, iface->current_mode->mode,
hostapd_hw_mode_txt(
iface->current_mode->mode));
ok = 0;
}
}
if (iface->conf->channel == 0) {
/* TODO: could request a scan of neighboring BSSes and select
* the channel automatically */