EHT: Allow EHT to be disabled using disable_eht=1 in wpa_supplicant

This is similar to the previously added disable_ht/vht/he parameters.

Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>

src/drivers/driver.h

@@ -1251,6 +1251,11 @@ struct wpa_driver_associate_params {
 	 * 2 = both hunting-and-pecking loop and hash-to-element enabled
 	 */
 	int sae_pwe;
+
+	/**
+	 * disable_eht - Disable EHT for this connection
+	 */
+	int disable_eht;
 };
 
 enum hide_ssid {

src/drivers/driver_nl80211.c

@@ -6059,6 +6059,12 @@ static int nl80211_ht_vht_overrides(struct nl_msg *msg,
 	}
 #endif /* CONFIG_HE_OVERRIDES */
 
+	if (params->disable_eht) {
+		wpa_printf(MSG_DEBUG, "  * EHT disabled");
+		if (nla_put_flag(msg, NL80211_ATTR_DISABLE_EHT))
+			return -1;
+	}
+
 	return 0;
 }
 

wpa_supplicant/config.c

@@ -2664,6 +2664,7 @@ static const struct parse_data ssid_fields[] = {
 	{ INT_RANGE(beacon_prot, 0, 1) },
 	{ INT_RANGE(transition_disable, 0, 255) },
 	{ INT_RANGE(sae_pk, 0, 2) },
+	{ INT_RANGE(disable_eht, 0, 1)},
 };
 
 #undef OFFSET

wpa_supplicant/config_file.c

@@ -880,6 +880,7 @@ static void wpa_config_write_network(FILE *f, struct wpa_ssid *ssid)
 #ifdef CONFIG_HE_OVERRIDES
 	INT(disable_he);
 #endif /* CONFIG_HE_OVERRIDES */
+	INT(disable_eht);
 
 #undef STR
 #undef INT

wpa_supplicant/config_ssid.h

@@ -1192,6 +1192,14 @@ struct wpa_ssid {
 	 * 2 = both hunting-and-pecking loop and hash-to-element enabled
 	 */
 	int sae_pwe;
+
+	/**
+	 * disable_eht - Disable EHT (IEEE 802.11be) for this network
+	 *
+	 * By default, use it if it is available, but this can be configured
+	 * to 1 to have it disabled.
+	 */
+	int disable_eht;
 };
 
 #endif /* CONFIG_SSID_H */

wpa_supplicant/sme.c

@@ -2027,6 +2027,7 @@ mscs_fail:
 #ifdef CONFIG_HE_OVERRIDES
 	wpa_supplicant_apply_he_overrides(wpa_s, ssid, &params);
 #endif /* CONFIG_HE_OVERRIDES */
+	wpa_supplicant_apply_eht_overrides(wpa_s, ssid, &params);
 #ifdef CONFIG_IEEE80211R
 	if (auth_type == WLAN_AUTH_FT && wpa_s->sme.ft_ies &&
 	    get_ie(wpa_s->sme.ft_ies, wpa_s->sme.ft_ies_len,

wpa_supplicant/wpa_cli.c

@@ -1479,6 +1479,7 @@ static const char *network_fields[] = {
 #ifdef CONFIG_HE_OVERRIDES
 	"disable_he",
 #endif /* CONFIG_HE_OVERRIDES */
+	"disable_eht",
 	"ap_max_inactivity", "dtim_period", "beacon_int",
 #ifdef CONFIG_MACSEC
 	"macsec_policy",

wpa_supplicant/wpa_supplicant.c

@@ -4119,6 +4119,7 @@ static void wpas_start_assoc_cb(struct wpa_radio_work *work, int deinit)
 #ifdef CONFIG_HE_OVERRIDES
 	wpa_supplicant_apply_he_overrides(wpa_s, ssid, &params);
 #endif /* CONFIG_HE_OVERRIDES */
+	wpa_supplicant_apply_eht_overrides(wpa_s, ssid, &params);
 
 #ifdef CONFIG_P2P
 	/*
@@ -5915,6 +5916,17 @@ void wpa_supplicant_apply_he_overrides(
 #endif /* CONFIG_HE_OVERRIDES */
 
 
+void wpa_supplicant_apply_eht_overrides(
+	struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
+	struct wpa_driver_associate_params *params)
+{
+	if (!ssid)
+		return;
+
+	params->disable_eht = ssid->disable_eht;
+}
+
+
 static int pcsc_reader_init(struct wpa_supplicant *wpa_s)
 {
 #ifdef PCSC_FUNCS

wpa_supplicant/wpa_supplicant.conf

@@ -1627,6 +1627,10 @@ fast_reauth=1
 #  2: MCS 0-9
 #  3: not supported
 
+# disable_eht: Whether EHT should be disabled.
+# 0 = EHT enabled (if supported) (default)
+# 1 = EHT disabled
+
 # multi_ap_backhaul_sta: Multi-AP backhaul STA functionality
 # 0 = normal STA (default)
 # 1 = backhaul STA

wpa_supplicant/wpa_supplicant_i.h

@@ -1584,6 +1584,9 @@ void wpa_supplicant_apply_vht_overrides(
 void wpa_supplicant_apply_he_overrides(
 	struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
 	struct wpa_driver_associate_params *params);
+void wpa_supplicant_apply_eht_overrides(
+	struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
+	struct wpa_driver_associate_params *params);
 
 int wpa_set_wep_keys(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid);
 int wpa_supplicant_set_wpa_none_key(struct wpa_supplicant *wpa_s,