Bluetooth: Add definitions for new link key types
With the introduction of Secure Connections, the list of link key types
got extended by P-256 versions of authenticated and unauthenticated
link keys.
To avoid any confusion the previous authenticated and unauthenticated
link key types got ammended with a P912 postfix. And the two new keys
have a P256 postfix now. Existing code using the previous definitions
has been adjusted.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index e4e94bf..8d888bc 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -331,9 +331,11 @@
#define HCI_LK_LOCAL_UNIT 0x01
#define HCI_LK_REMOTE_UNIT 0x02
#define HCI_LK_DEBUG_COMBINATION 0x03
-#define HCI_LK_UNAUTH_COMBINATION 0x04
-#define HCI_LK_AUTH_COMBINATION 0x05
+#define HCI_LK_UNAUTH_COMBINATION_P192 0x04
+#define HCI_LK_AUTH_COMBINATION_P192 0x05
#define HCI_LK_CHANGED_COMBINATION 0x06
+#define HCI_LK_UNAUTH_COMBINATION_P256 0x07
+#define HCI_LK_AUTH_COMBINATION_P256 0x08
/* The spec doesn't define types for SMP keys, the _MASTER suffix is implied */
#define HCI_SMP_STK 0x80
#define HCI_SMP_STK_SLAVE 0x81
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index ba5366c..251f22e 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -802,12 +802,12 @@
/* An authenticated combination key has sufficient security for any
security level. */
- if (conn->key_type == HCI_LK_AUTH_COMBINATION)
+ if (conn->key_type == HCI_LK_AUTH_COMBINATION_P192)
goto encrypt;
/* An unauthenticated combination key has sufficient security for
security level 1 and 2. */
- if (conn->key_type == HCI_LK_UNAUTH_COMBINATION &&
+ if (conn->key_type == HCI_LK_UNAUTH_COMBINATION_P192 &&
(sec_level == BT_SECURITY_MEDIUM || sec_level == BT_SECURITY_LOW))
goto encrypt;
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index cfcce44..defa125 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -2633,7 +2633,7 @@
conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
if (conn) {
- if (key->type == HCI_LK_UNAUTH_COMBINATION &&
+ if (key->type == HCI_LK_UNAUTH_COMBINATION_P192 &&
conn->auth_type != 0xff && (conn->auth_type & 0x01)) {
BT_DBG("%s ignoring unauthenticated key", hdev->name);
goto not_found;