Bluetooth: Add connected/disconnected management events

This patch adds connected and disconnected managment events to track the
connection status to remote devices. The events map directly to
successful connection complete and disconnection complete HCI events for
ACL links.

Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

2 files changed, 31 insertions, 5 deletions

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 80ffd3a901fc..46ddb029912b 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -1137,6 +1137,7 @@ static inline void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *s
 			conn->state = BT_CONFIG;
 			hci_conn_hold(conn);
 			conn->disc_timeout = HCI_DISCONN_TIMEOUT;
+			mgmt_connected(hdev->id, &ev->bdaddr);
 		} else
 			conn->state = BT_CONNECTED;
 
@@ -1269,13 +1270,18 @@ static inline void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff
 	hci_dev_lock(hdev);
 
 	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
-	if (conn) {
-		conn->state = BT_CLOSED;
+	if (!conn)
+		goto unlock;
 
-		hci_proto_disconn_cfm(conn, ev->reason);
-		hci_conn_del(conn);
-	}
+	conn->state = BT_CLOSED;
+
+	if (conn->type == ACL_LINK)
+		mgmt_disconnected(hdev->id, &conn->dst);
 
+	hci_proto_disconn_cfm(conn, ev->reason);
+	hci_conn_del(conn);
+
+unlock:
 	hci_dev_unlock(hdev);
 }
 
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index bdb0e85f182e..7cf1968157d8 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1090,3 +1090,23 @@ int mgmt_new_key(u16 index, struct link_key *key, u8 old_key_type)
 
 	return mgmt_event(MGMT_EV_NEW_KEY, &ev, sizeof(ev), NULL);
 }
+
+int mgmt_connected(u16 index, bdaddr_t *bdaddr)
+{
+	struct mgmt_ev_connected ev;
+
+	put_unaligned_le16(index, &ev.index);
+	bacpy(&ev.bdaddr, bdaddr);
+
+	return mgmt_event(MGMT_EV_CONNECTED, &ev, sizeof(ev), NULL);
+}
+
+int mgmt_disconnected(u16 index, bdaddr_t *bdaddr)
+{
+	struct mgmt_ev_disconnected ev;
+
+	put_unaligned_le16(index, &ev.index);
+	bacpy(&ev.bdaddr, bdaddr);
+
+	return mgmt_event(MGMT_EV_DISCONNECTED, &ev, sizeof(ev), NULL);
+}