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Bluetooth: Add key preference parameter to smp_sufficient_security

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So far smp_sufficient_security() has returned false if we're encrypted
with an STK but do have an LTK available. However, for the sake of LE
CoC servers we do want to let the incoming connection through even
though we're only encrypted with the STK.

This patch adds a key preference parameter to smp_sufficient_security()
with two possible values (enum used instead of bool for readability).

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Johan Hedberg
2014-11-13 10:55:18 +02:00
committed by Marcel Holtmann
parent fa37c1aa30
commit 35dc6f834c
3 changed files with 21 additions and 11 deletions
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net/bluetooth/l2cap_core.c
+2 -1
View File
@@ -5391,7 +5391,8 @@ static int l2cap_le_connect_req(struct l2cap_conn *conn,
mutex_lock(&conn->chan_lock);
l2cap_chan_lock(pchan);
if (!smp_sufficient_security(conn->hcon, pchan->sec_level)) {
if (!smp_sufficient_security(conn->hcon, pchan->sec_level,
SMP_ALLOW_STK)) {
result = L2CAP_CR_AUTHENTICATION;
chan = NULL;
goto response_unlock;