diff options
| author | Johan Hedberg <johan.hedberg@intel.com> | 2014-06-10 09:54:24 +0300 |
|---|---|---|
| committer | Jiri Slaby <jslaby@suse.cz> | 2014-07-02 12:06:44 +0200 |
| commit | 89754d5379ab1956b98f51cd2fee0cfcadb18c00 (patch) | |
| tree | e8c7cfcb88bfb5f8c246723ab874bcf6579c7d88 /net | |
| parent | 849dc4c5ccc4348ed2795876b3d85a52b326aef4 (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>
Cc: stable@vger.kernel.org
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Diffstat (limited to 'net')
| -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 312915c23930..3d339414dc9e 100644 --- a/net/bluetooth/hci_conn.c +++ b/net/bluetooth/hci_conn.c @@ -697,7 +697,7 @@ 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->flags); else set_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags); |