TWT: Allow specifying Control field value in TWT Request

See IEEE P802.11ax/D8.0, Figure 9-687 (Control field format) for
details.

Signed-off-by: Ben Greear <greearb@candelatech.com>

wpa_supplicant/ctrl_iface.c

@@ -9809,6 +9809,8 @@ static int wpas_ctrl_iface_send_twt_setup(struct wpa_supplicant *wpa_s,
 	int flow_id = 0;
 	bool protection = false;
 	u8 twt_channel = 0;
+	u8 control = BIT(4); /* Control field (IEEE P802.11ax/D8.0 Figure
+			      * 9-687): B4 = TWT Information Frame Disabled */
 	const char *tok_s;
 
 	tok_s = os_strstr(cmd, " dialog=");
@@ -9863,9 +9865,14 @@ static int wpas_ctrl_iface_send_twt_setup(struct wpa_supplicant *wpa_s,
 	if (tok_s)
 		twt_channel = atoi(tok_s + os_strlen(" twt_channel="));
 
+	tok_s = os_strstr(cmd, " control=");
+	if (tok_s)
+		control = atoi(tok_s + os_strlen(" control="));
+
 	return wpas_twt_send_setup(wpa_s, dtok, exponent, mantissa, min_twt,
 				   setup_cmd, twt, requestor, trigger, implicit,
-				   flow_type, flow_id, protection, twt_channel);
+				   flow_type, flow_id, protection, twt_channel,
+				   control);
 }
 
 

wpa_supplicant/twt.c

@@ -30,7 +30,7 @@ int wpas_twt_send_setup(struct wpa_supplicant *wpa_s, u8 dtok, int exponent,
 			int mantissa, u8 min_twt, int setup_cmd, u64 twt,
 			bool requestor, bool trigger, bool implicit,
 			bool flow_type, u8 flow_id, bool protection,
-			u8 twt_channel)
+			u8 twt_channel, u8 control)
 {
 	struct wpabuf *buf;
 	u16 req_type = 0;
@@ -62,8 +62,7 @@ int wpas_twt_send_setup(struct wpa_supplicant *wpa_s, u8 dtok, int exponent,
 	wpabuf_put_u8(buf, WLAN_EID_TWT);
 	wpabuf_put_u8(buf, 15); /* len */
 
-	wpabuf_put_u8(buf, BIT(4)); /* Control field:
-				     * B4 = TWT Information Frame Disabled */
+	wpabuf_put_u8(buf, control);
 
 	if (requestor)
 		req_type |= BIT(0); /* This STA is a TWT Requesting STA */

wpa_supplicant/wpa_cli.c

@@ -3821,7 +3821,7 @@ static const struct wpa_cli_cmd wpa_cli_commands[] = {
 	},
 	{ "twt_setup",
 	  wpa_cli_cmd_twt_setup, NULL, cli_cmd_flag_none,
-	  "[dialog=<token>] [exponent=<exponent>] [mantissa=<mantissa>] [min_twt=<Min TWT>] [setup_cmd=<setup-cmd>] [twt=<u64>] [requestor=0|1] [trigger=0|1] [implicit=0|1] [flow_type=0|1] [flow_id=<3-bit-id>] [protection=0|1] [twt_channel=<twt chanel id>] = Send TWT Setup frame"
+	  "[dialog=<token>] [exponent=<exponent>] [mantissa=<mantissa>] [min_twt=<Min TWT>] [setup_cmd=<setup-cmd>] [twt=<u64>] [requestor=0|1] [trigger=0|1] [implicit=0|1] [flow_type=0|1] [flow_id=<3-bit-id>] [protection=0|1] [twt_channel=<twt chanel id>] [control=<control-u8>] = Send TWT Setup frame"
 	},
 	{ "twt_teardown",
 	  wpa_cli_cmd_twt_teardown, NULL, cli_cmd_flag_none,

wpa_supplicant/wpa_supplicant_i.h

@@ -1519,7 +1519,7 @@ int wpas_twt_send_setup(struct wpa_supplicant *wpa_s, u8 dtok, int exponent,
 			int mantissa, u8 min_twt, int setup_cmd, u64 twt,
 			bool requestor, bool trigger, bool implicit,
 			bool flow_type, u8 flow_id, bool protection,
-			u8 twt_channel);
+			u8 twt_channel, u8 control);
 int wpas_twt_send_teardown(struct wpa_supplicant *wpa_s, u8 flags);
 
 void wpas_rrm_reset(struct wpa_supplicant *wpa_s);