From: Johan Hedberg <johan.hedberg@xxxxxxxxx>
With LE/SMP the completion of a security level elavation from medium to
high is indicated by a HCI Encryption Key Refresh complete event. The
necessary behavior upon receiving this event is a mix of what's done for
auth_complete and encryption_change, which is also where most of the
event handling code has been copied from.
Signed-off-by: Johan Hedberg <johan.hedberg@xxxxxxxxx>
---
include/net/bluetooth/hci.h | 6 ++++++
net/bluetooth/hci_event.c | 48 +++++++++++++++++++++++++++++++++++++++++++
2 files changed, 54 insertions(+)
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 3f5d682..2a6b0b8 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -1195,6 +1195,12 @@ struct extended_inquiry_info {
__u8 data[240];
} __packed;
+#define HCI_EV_KEY_REFRESH_COMPLETE 0x30
+struct hci_ev_key_refresh_complete {
+ __u8 status;
+ __le16 handle;
+} __packed;
+
#define HCI_EV_IO_CAPA_REQUEST 0x31
struct hci_ev_io_capa_request {
bdaddr_t bdaddr;
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 47656be..1ba929c 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -3040,6 +3040,50 @@ static void hci_extended_inquiry_result_evt(struct hci_dev *hdev,
hci_dev_unlock(hdev);
}
+static void hci_key_refresh_complete_evt(struct hci_dev *hdev,
+ struct sk_buff *skb)
+{
+ struct hci_ev_key_refresh_complete *ev = (void *) skb->data;
+ struct hci_conn *conn;
+
+ BT_DBG("%s status %u handle %u", hdev->name, ev->status,
+ __le16_to_cpu(ev->handle));
+
+ hci_dev_lock(hdev);
+
+ conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
+ if (!conn)
+ goto unlock;
+
+ if (!ev->status)
+ conn->sec_level = conn->pending_sec_level;
+
+ clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
+
+ if (ev->status && conn->state == BT_CONNECTED) {
+ hci_acl_disconn(conn, HCI_ERROR_AUTH_FAILURE);
+ hci_conn_put(conn);
+ goto unlock;
+ }
+
+ if (conn->state == BT_CONFIG) {
+ if (!ev->status)
+ conn->state = BT_CONNECTED;
+
+ hci_proto_connect_cfm(conn, ev->status);
+ hci_conn_put(conn);
+ } else {
+ hci_auth_cfm(conn, ev->status);
+
+ hci_conn_hold(conn);
+ conn->disc_timeout = HCI_DISCONN_TIMEOUT;
+ hci_conn_put(conn);
+ }
+
+unlock:
+ hci_dev_unlock(hdev);
+}
+
static u8 hci_get_auth_req(struct hci_conn *conn)
{
/* If remote requests dedicated bonding follow that lead */
@@ -3560,6 +3604,10 @@ void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
hci_extended_inquiry_result_evt(hdev, skb);
break;
+ case HCI_EV_KEY_REFRESH_COMPLETE:
+ hci_key_refresh_complete_evt(hdev, skb);
+ break;
+
case HCI_EV_IO_CAPA_REQUEST:
hci_io_capa_request_evt(hdev, skb);
break;
--
1.7.10
--
To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
