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Message-Id: <1406067727-19683-98-git-send-email-kamal@canonical.com> Date: Tue, 22 Jul 2014 15:21:48 -0700 From: Kamal Mostafa <kamal@...onical.com> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org, kernel-team@...ts.ubuntu.com Cc: Johan Hedberg <johan.hedberg@...el.com>, Marcel Holtmann <marcel@...tmann.org>, Kamal Mostafa <kamal@...onical.com> Subject: [PATCH 3.8 097/116] Bluetooth: Fix check for connection encryption 3.8.13.27 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Johan Hedberg <johan.hedberg@...el.com> 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@...el.com> Signed-off-by: Marcel Holtmann <marcel@...tmann.org> Signed-off-by: Kamal Mostafa <kamal@...onical.com> --- net/bluetooth/hci_conn.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c index 058897f..947a965 100644 --- a/net/bluetooth/hci_conn.c +++ b/net/bluetooth/hci_conn.c @@ -650,7 +650,7 @@ 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); -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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