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authorJohan Hedberg <johan.hedberg@intel.com>2012-06-08 23:31:13 +0800
committerGustavo Padovan <gustavo.padovan@collabora.co.uk>2012-06-08 21:00:40 -0300
commit1c2e004183178e1947882cd2e74f37826f45230e (patch)
treea0a5e7ed54d89392bb77ae7175a9c63bbfc7b9f1 /net/bluetooth
parent4dab786482d706a2a41cd16cf174671d640a9870 (diff)
downloadlinux-1c2e004183178e1947882cd2e74f37826f45230e.tar.bz2
Bluetooth: Add support for encryption key refresh
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@intel.com> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Diffstat (limited to 'net/bluetooth')
-rw-r--r--net/bluetooth/hci_event.c48
1 files changed, 48 insertions, 0 deletions
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 4eefb7f65cf6..94ad124a4ea3 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -3043,6 +3043,50 @@ static inline void hci_extended_inquiry_result_evt(struct hci_dev *hdev, struct
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 inline u8 hci_get_auth_req(struct hci_conn *conn)
{
/* If remote requests dedicated bonding follow that lead */
@@ -3559,6 +3603,10 @@ 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;