[PATCH 12/14] TDLS: support mgmt-frame Tx for ctrl-iface operations

[Arik Nemtsov]

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

Signed-off-by: Arik Nemtsov <arik at wizery.com>
Cc: Kalyan C Gaddam <chakkal at iit.edu>
---
 src/rsn_supp/tdls.c         |    6 ++++++
 src/rsn_supp/wpa.h          |    2 +-
 wpa_supplicant/ctrl_iface.c |   20 ++++++++++++++++----
 3 files changed, 23 insertions(+), 5 deletions(-)

diff --git a/src/rsn_supp/tdls.c b/src/rsn_supp/tdls.c
index 771f77c..5bbd2b0 100644
--- a/src/rsn_supp/tdls.c
+++ b/src/rsn_supp/tdls.c
@@ -2318,3 +2318,9 @@ 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;
+}
diff --git a/src/rsn_supp/wpa.h b/src/rsn_supp/wpa.h
index d4ae09c..6ab2a48 100644
--- a/src/rsn_supp/wpa.h
+++ b/src/rsn_supp/wpa.h
@@ -370,5 +370,5 @@ 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 */
diff --git a/wpa_supplicant/ctrl_iface.c b/wpa_supplicant/ctrl_iface.c
index a55a528..d991190 100644
--- a/wpa_supplicant/ctrl_iface.c
+++ b/wpa_supplicant/ctrl_iface.c
@@ -204,6 +204,7 @@ 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 "
@@ -214,7 +215,12 @@ 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;
 }
 
 
@@ -234,8 +240,13 @@ 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;
 }
 
@@ -254,7 +265,8 @@ 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 */
-- 
1.7.4.1