diff options
| author | Johan Hedberg <johan.hedberg@intel.com> | 2014-06-10 09:54:24 +0300 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2014-07-11 13:33:52 +0100 |
| commit | d6b05102d11032e0809dabc7231cbcdb6eba4cdc (patch) | |
| tree | b5ae91e3872a62acbe4f7bc769957c212ee304a3 | |
| parent | f7500568b7633324e7c4282bb8baa3ff3f17fd7a (diff) | |
Bluetooth: Fix check for connection encryption
commit e694788d73efe139b24f78b036deb97fe57fa8cb upstream.
The conn->link_key variable tracks the type of link key in use. It is
set whenever we respond to a link key request as well as when we get a
link key notification event.
These two events do not however always guarantee that encryption is
enabled: getting a link key request and responding to it may only mean
that the remote side has requested authentication but not encryption. On
the other hand, the encrypt change event is a certain guarantee that
encryption is enabled. The real encryption state is already tracked in
the conn->link_mode variable through the HCI_LM_ENCRYPT bit.
This patch fixes a check for encryption in the hci_conn_auth function to
use the proper conn->link_mode value and thereby eliminates the chance
of a false positive result.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
| -rw-r--r-- | net/bluetooth/hci_conn.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c index 4d99d42f30ff..f45664580671 100644 --- a/net/bluetooth/hci_conn.c +++ b/net/bluetooth/hci_conn.c @@ -617,7 +617,7 @@ static int hci_conn_auth(struct hci_conn *conn, __u8 sec_level, __u8 auth_type) /* If we're already encrypted set the REAUTH_PEND flag, * otherwise set the ENCRYPT_PEND. */ - if (conn->key_type != 0xff) + if (conn->link_mode & HCI_LM_ENCRYPT) set_bit(HCI_CONN_REAUTH_PEND, &conn->pend); else set_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend); |