[RFC 17/34] NAN: Handle cluster join notification

[Andrei Otcheretianski <andrei.otcheretianski@xxxxxxxxx>]

Store cluster ID and send a notification over the control interface.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@xxxxxxxxx>
---
 src/common/nan_de.c             | 13 +++++++++++++
 src/common/nan_de.h             |  1 +
 src/common/wpa_ctrl.h           |  3 ++-
 wpa_supplicant/nan_supplicant.c |  9 +++++----
 4 files changed, 21 insertions(+), 5 deletions(-)

diff --git a/src/common/nan_de.c b/src/common/nan_de.c
index 4a918661f6..c45725a392 100644
--- a/src/common/nan_de.c
+++ b/src/common/nan_de.c
@@ -68,6 +68,8 @@ struct nan_de_service {
 
 struct nan_de {
 	u8 nmi[ETH_ALEN];
+	u8 cluster_id[ETH_ALEN];
+	bool cluster_id_set;
 	bool offload;
 	bool ap;
 	unsigned int max_listen;
@@ -1566,3 +1568,14 @@ int nan_de_transmit(struct nan_de *de, int handle,
 
 	return 0;
 }
+
+
+void nan_de_set_cluster_id(struct nan_de *de, const u8 *cluster_id)
+{
+	if (cluster_id) {
+		os_memcpy(de->cluster_id, cluster_id, ETH_ALEN);
+		de->cluster_id_set = true;
+	} else {
+		de->cluster_id_set = false;
+	}
+}
diff --git a/src/common/nan_de.h b/src/common/nan_de.h
index 4e2e45b0f1..8c81deb326 100644
--- a/src/common/nan_de.h
+++ b/src/common/nan_de.h
@@ -158,5 +158,6 @@ void nan_de_cancel_subscribe(struct nan_de *de, int subscribe_id);
 int nan_de_transmit(struct nan_de *de, int handle,
 		    const struct wpabuf *ssi, const struct wpabuf *elems,
 		    const u8 *peer_addr, u8 req_instance_id);
+void nan_de_set_cluster_id(struct nan_de *de, const u8 *cluster_id);
 
 #endif /* NAN_DE_H */
diff --git a/src/common/wpa_ctrl.h b/src/common/wpa_ctrl.h
index ae5711aa6b..2b24c20736 100644
--- a/src/common/wpa_ctrl.h
+++ b/src/common/wpa_ctrl.h
@@ -240,12 +240,13 @@ extern "C" {
 #define DPP_EVENT_PB_RESULT "DPP-PB-RESULT "
 #define DPP_EVENT_RELAY_NEEDS_CONTROLLER "DPP-RELAY-NEEDS-CONTROLLER "
 
-/* Wi-Fi Aware (NAN USD) events */
+/* Wi-Fi Aware (NAN) events */
 #define NAN_DISCOVERY_RESULT "NAN-DISCOVERY-RESULT "
 #define NAN_REPLIED "NAN-REPLIED "
 #define NAN_PUBLISH_TERMINATED "NAN-PUBLISH-TERMINATED "
 #define NAN_SUBSCRIBE_TERMINATED "NAN-SUBSCRIBE-TERMINATED "
 #define NAN_RECEIVE "NAN-RECEIVE "
+#define NAN_CLUSTER_JOIN "NAN-CLUSTER-JOIN "
 
 /* MESH events */
 #define MESH_GROUP_STARTED "MESH-GROUP-STARTED "
diff --git a/wpa_supplicant/nan_supplicant.c b/wpa_supplicant/nan_supplicant.c
index d29deaa99f..a3b9bf6c20 100644
--- a/wpa_supplicant/nan_supplicant.c
+++ b/wpa_supplicant/nan_supplicant.c
@@ -105,7 +105,7 @@ int wpas_nan_stop(struct wpa_supplicant *wpa_s)
 		return -1;
 
 	nan_stop(wpa_s->nan);
-
+	nan_de_set_cluster_id(wpa_s->nan_de, NULL);
 	return 0;
 }
 
@@ -126,9 +126,10 @@ void wpas_nan_cluster_join(struct wpa_supplicant *wpa_s,
 	if (!wpas_nan_ready(wpa_s))
 		return;
 
-	/* TODO: handle cluster merge */
-	wpa_printf(MSG_DEBUG, "NAN: Joined cluster " MACSTR " (new: %d)",
-		   MAC2STR(cluster_id), new_cluster);
+	wpa_msg_global(wpa_s, MSG_INFO, NAN_CLUSTER_JOIN "cluster_id=" MACSTR
+		       " new=%d", MAC2STR(cluster_id), new_cluster);
+
+	nan_de_set_cluster_id(wpa_s->nan_de, cluster_id);
 }
 
 void wpas_nan_next_dw(struct wpa_supplicant *wpa_s, u32 freq)
-- 
2.49.0


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