P2P: Add a conf parameter to start a GO as HT40 if allowed

When specified in the conf file this parameter will make all invocations
of p2p_group_add, p2p_connect, and p2p_invite behave as if "ht40" has
been specified on the command line. This shouldn't do harm since
regulatory constraints and driver capabilities are consulted anyway
before starting HT40 mode.

Signed-hostap: Arik Nemtsov <arik@wizery.com>

wpa_supplicant/config.c

@@ -3006,6 +3006,7 @@ static const struct global_parse_data global_fields[] = {
 	{ INT_RANGE(p2p_intra_bss, 0, 1), CFG_CHANGED_P2P_INTRA_BSS },
 	{ INT(p2p_group_idle), 0 },
 	{ FUNC(p2p_pref_chan), CFG_CHANGED_P2P_PREF_CHAN },
+	{ INT(p2p_go_ht40), 0 },
 #endif /* CONFIG_P2P */
 	{ FUNC(country), CFG_CHANGED_COUNTRY },
 	{ INT(bss_max_count), 0 },

wpa_supplicant/config.h

@@ -747,6 +747,16 @@ struct wpa_config {
 	 *     matching network block
 	 */
 	int auto_interworking;
+
+	/**
+	 * p2p_go_ht40 - Default mode for HT40 enable when operating as GO.
+	 *
+	 * This will take effect for p2p_group_add, p2p_connect, and p2p_invite.
+	 * Note that regulatory constraints and driver capabilities are
+	 * consulted anyway, so setting it to 1 can't do real harm.
+	 * By default: 0 (disabled)
+	 */
+	int p2p_go_ht40;
 };
 
 

wpa_supplicant/config_file.c

@@ -868,6 +868,8 @@ static void wpa_config_write_global(FILE *f, struct wpa_config *config)
 		}
 		fprintf(f, "\n");
 	}
+	if (config->p2p_go_ht40)
+		fprintf(f, "p2p_go_ht40=%u\n", config->p2p_go_ht40);
 #endif /* CONFIG_P2P */
 	if (config->country[0] && config->country[1]) {
 		fprintf(f, "country=%c%c\n",

wpa_supplicant/ctrl_iface.c

@@ -3241,7 +3241,7 @@ static int p2p_ctrl_connect(struct wpa_supplicant *wpa_s, char *cmd,
 	auth = os_strstr(pos, " auth") != NULL;
 	automatic = os_strstr(pos, " auto") != NULL;
 	pd = os_strstr(pos, " provdisc") != NULL;
-	ht40 = os_strstr(pos, " ht40") != NULL;
+	ht40 = (os_strstr(cmd, " ht40") != NULL) || wpa_s->conf->p2p_go_ht40;
 
 	pos2 = os_strstr(pos, " go_intent=");
 	if (pos2) {
@@ -3672,7 +3672,7 @@ static int p2p_ctrl_invite_persistent(struct wpa_supplicant *wpa_s, char *cmd)
 			return -1;
 	}
 
-	ht40 = os_strstr(cmd, " ht40") != NULL;
+	ht40 = (os_strstr(cmd, " ht40") != NULL) || wpa_s->conf->p2p_go_ht40;
 
 	return wpas_p2p_invite(wpa_s, _peer, ssid, NULL, freq, ht40);
 }
@@ -3748,7 +3748,7 @@ static int p2p_ctrl_group_add(struct wpa_supplicant *wpa_s, char *cmd)
 	if (pos)
 		freq = atoi(pos + 5);
 
-	ht40 = os_strstr(cmd, "ht40") != NULL;
+	ht40 = (os_strstr(cmd, "ht40") != NULL) || wpa_s->conf->p2p_go_ht40;
 
 	if (os_strncmp(cmd, "persistent=", 11) == 0)
 		return p2p_ctrl_group_add_persistent(wpa_s, cmd + 11, freq,