int wpa_supplicant_conf_ap_ht(struct wpa_supplicant *wpa_s,
struct wpa_ssid *ssid,
struct hostapd_config *conf)
{
conf->hw_mode = ieee80211_freq_to_chan(ssid->frequency,
&conf->channel);
if (conf->hw_mode == NUM_HOSTAPD_MODES) {
wpa_printf(MSG_ERROR, "Unsupported AP mode frequency: %d MHz",
ssid->frequency);
return -1;
}
/* TODO: enable HT40 if driver supports it;
* drop to 11b if driver does not support 11g */
#ifdef CONFIG_IEEE80211N
/*
* Enable HT20 if the driver supports it, by setting conf->ieee80211n
* and a mask of allowed capabilities within conf->ht_capab.
* Using default config settings for: conf->ht_op_mode_fixed,
* conf->secondary_channel, conf->require_ht
*/
if (wpa_s->hw.modes) {
struct hostapd_hw_modes *mode = NULL;
int i, no_ht = 0;
for (i = 0; i < wpa_s->hw.num_modes; i++) {
if (wpa_s->hw.modes[i].mode == conf->hw_mode) {
mode = &wpa_s->hw.modes[i];
break;
}
}
#ifdef CONFIG_HT_OVERRIDES
if (ssid->disable_ht) {
conf->ieee80211n = 0;
conf->ht_capab = 0;
no_ht = 1;
}
#endif /* CONFIG_HT_OVERRIDES */
if (!no_ht && mode && mode->ht_capab) {
conf->ieee80211n = 1;
#ifdef CONFIG_P2P
if (conf->hw_mode == HOSTAPD_MODE_IEEE80211A &&
(mode->ht_capab &
HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET) &&
ssid->ht40)
conf->secondary_channel =
wpas_p2p_get_ht40_mode(wpa_s, mode,
conf->channel);
if (conf->secondary_channel)
conf->ht_capab |=
HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET;
#endif /* CONFIG_P2P */
/*
* white-list capabilities that won't cause issues
* to connecting stations, while leaving the current
* capabilities intact (currently disabled SMPS).
*/
conf->ht_capab |= mode->ht_capab &
(HT_CAP_INFO_GREEN_FIELD |
HT_CAP_INFO_SHORT_GI20MHZ |
HT_CAP_INFO_SHORT_GI40MHZ |
HT_CAP_INFO_RX_STBC_MASK |
HT_CAP_INFO_TX_STBC |
HT_CAP_INFO_MAX_AMSDU_SIZE);
if (mode->vht_capab && ssid->vht) {
conf->ieee80211ac = 1;
wpas_conf_ap_vht(wpa_s, conf, mode);
}
}
}
if (conf->secondary_channel) {
struct wpa_supplicant *iface;
for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
{
if (iface == wpa_s ||
iface->wpa_state < WPA_AUTHENTICATING ||
(int) iface->assoc_freq != ssid->frequency)
continue;
/*
* Do not allow 40 MHz co-ex PRI/SEC switch to force us
* to change our PRI channel since we have an existing,
* concurrent connection on that channel and doing
* multi-channel concurrency is likely to cause more
* harm than using different PRI/SEC selection in
* environment with multiple BSSes on these two channels
* with mixed 20 MHz or PRI channel selection.
*/
conf->no_pri_sec_switch = 1;
}
}
#endif /* CONFIG_IEEE80211N */
return 0;
}
void wpa_supplicant_conf_ap_ht(struct wpa_supplicant *wpa_s,
struct wpa_ssid *ssid,
struct hostapd_config *conf)
{
/* TODO: enable HT40 if driver supports it;
* drop to 11b if driver does not support 11g */
#ifdef CONFIG_IEEE80211N
/*
* Enable HT20 if the driver supports it, by setting conf->ieee80211n
* and a mask of allowed capabilities within conf->ht_capab.
* Using default config settings for: conf->ht_op_mode_fixed,
* conf->secondary_channel, conf->require_ht
*/
if (wpa_s->hw.modes) {
struct hostapd_hw_modes *mode = NULL;
int i, no_ht = 0;
for (i = 0; i < wpa_s->hw.num_modes; i++) {
if (wpa_s->hw.modes[i].mode == conf->hw_mode) {
mode = &wpa_s->hw.modes[i];
break;
}
}
#ifdef CONFIG_HT_OVERRIDES
if (ssid->disable_ht) {
conf->ieee80211n = 0;
conf->ht_capab = 0;
no_ht = 1;
}
#endif /* CONFIG_HT_OVERRIDES */
if (!no_ht && mode && mode->ht_capab) {
conf->ieee80211n = 1;
#ifdef CONFIG_P2P
if (conf->hw_mode == HOSTAPD_MODE_IEEE80211A &&
(mode->ht_capab &
HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET) &&
ssid->ht40)
conf->secondary_channel =
wpas_p2p_get_ht40_mode(wpa_s, mode,
conf->channel);
if (conf->secondary_channel)
conf->ht_capab |=
HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET;
#endif /* CONFIG_P2P */
/*
* white-list capabilities that won't cause issues
* to connecting stations, while leaving the current
* capabilities intact (currently disabled SMPS).
*/
conf->ht_capab |= mode->ht_capab &
(HT_CAP_INFO_GREEN_FIELD |
HT_CAP_INFO_SHORT_GI20MHZ |
HT_CAP_INFO_SHORT_GI40MHZ |
HT_CAP_INFO_RX_STBC_MASK |
HT_CAP_INFO_TX_STBC |
HT_CAP_INFO_MAX_AMSDU_SIZE);
if (mode->vht_capab && ssid->vht) {
conf->ieee80211ac = 1;
wpas_conf_ap_vht(wpa_s, conf, mode);
}
}
}
#endif /* CONFIG_IEEE80211N */
}
