TDLS: Support mgmt-frame Tx for ctrl-iface operations

Use capability information to decide whether to perform a given TDLS
operation internally or through mgmt-frame Tx.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Cc: Kalyan C Gaddam <chakkal@iit.edu>

src/rsn_supp/tdls.c

@@ -2302,3 +2302,9 @@ void wpa_tdls_enable(struct wpa_sm *sm, int enabled)
 	wpa_printf(MSG_DEBUG, "TDLS: %s", enabled ? "enabled" : "disabled");
 	sm->tdls_disabled = !enabled;
 }
+
+
+int wpa_tdls_is_external_setup(struct wpa_sm *sm)
+{
+	return sm->tdls_external_setup;
+}

src/rsn_supp/wpa.h

@@ -370,5 +370,6 @@ int wpa_tdls_init(struct wpa_sm *sm);
 void wpa_tdls_deinit(struct wpa_sm *sm);
 void wpa_tdls_enable(struct wpa_sm *sm, int enabled);
 void wpa_tdls_disable_link(struct wpa_sm *sm, const u8 *addr);
+int wpa_tdls_is_external_setup(struct wpa_sm *sm);
 
 #endif /* WPA_H */

wpa_supplicant/ctrl_iface.c

@@ -206,6 +206,7 @@ static int wpa_supplicant_ctrl_iface_tdls_discover(
 	struct wpa_supplicant *wpa_s, char *addr)
 {
 	u8 peer[ETH_ALEN];
+	int ret;
 
 	if (hwaddr_aton(addr, peer)) {
 		wpa_printf(MSG_DEBUG, "CTRL_IFACE TDLS_DISCOVER: invalid "
@@ -216,7 +217,12 @@ static int wpa_supplicant_ctrl_iface_tdls_discover(
 	wpa_printf(MSG_DEBUG, "CTRL_IFACE TDLS_DISCOVER " MACSTR,
 		   MAC2STR(peer));
 
-	return wpa_drv_tdls_oper(wpa_s, TDLS_DISCOVERY_REQ, peer);
+	if (wpa_tdls_is_external_setup(wpa_s->wpa))
+		ret = wpa_tdls_send_discovery_request(wpa_s->wpa, peer);
+	else
+		ret = wpa_drv_tdls_oper(wpa_s, TDLS_DISCOVERY_REQ, peer);
+
+	return ret;
 }
 
 
@@ -236,8 +242,13 @@ static int wpa_supplicant_ctrl_iface_tdls_setup(
 		   MAC2STR(peer));
 
 	ret = wpa_tdls_reneg(wpa_s->wpa, peer);
-	if (ret)
-		ret = wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, peer);
+	if (ret) {
+		if (wpa_tdls_is_external_setup(wpa_s->wpa))
+			ret = wpa_tdls_start(wpa_s->wpa, peer);
+		else
+			ret = wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, peer);
+	}
+
 	return ret;
 }
 
@@ -256,7 +267,8 @@ static int wpa_supplicant_ctrl_iface_tdls_teardown(
 	wpa_printf(MSG_DEBUG, "CTRL_IFACE TDLS_TEARDOWN " MACSTR,
 		   MAC2STR(peer));
 
-	return wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN, peer);
+	return wpa_tdls_teardown_link(wpa_s->wpa, peer,
+				      WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED);
 }
 
 #endif /* CONFIG_TDLS */