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authorJohan Hedberg <johan.hedberg@intel.com>2014-06-06 10:39:56 +0300
committerMarcel Holtmann <marcel@holtmann.org>2014-12-03 16:51:16 +0100
commitdf8e1a4c7339f6447e75430e7c8172deddb489a9 (patch)
tree32fdad023662184ee3b098da31055e1021837548 /net/bluetooth/smp.c
parentf3a73d97b3b78584e111478d07dfd063453f112e (diff)
downloadblackbird-op-linux-df8e1a4c7339f6447e75430e7c8172deddb489a9.tar.gz
blackbird-op-linux-df8e1a4c7339f6447e75430e7c8172deddb489a9.zip
Bluetooth: Set link key generation bit if necessary for LE SC
Depending on whether Secure Connections is enabled or not we may need to add the link key generation bit to the key distribution. This patch does the necessary modifications to the build_pairing_cmd() function. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/bluetooth/smp.c')
-rw-r--r--net/bluetooth/smp.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index 0973e37073e2..d993d7d4fcc8 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -333,6 +333,16 @@ static void build_pairing_cmd(struct l2cap_conn *conn,
if (test_bit(HCI_PRIVACY, &hdev->dev_flags))
local_dist |= SMP_DIST_ID_KEY;
+ if (test_bit(HCI_SC_ENABLED, &hdev->dev_flags)) {
+ if ((authreq & SMP_AUTH_SC) &&
+ test_bit(HCI_SSP_ENABLED, &hdev->dev_flags)) {
+ local_dist |= SMP_DIST_LINK_KEY;
+ remote_dist |= SMP_DIST_LINK_KEY;
+ }
+ } else {
+ authreq &= ~SMP_AUTH_SC;
+ }
+
if (rsp == NULL) {
req->io_capability = conn->hcon->io_capability;
req->oob_flag = SMP_OOB_NOT_PRESENT;
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