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Bluetooth: Add hci_conn flag for new link key generation

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For LE Secure Connections we want to trigger cross transport key
generation only if a new link key was actually created during the BR/EDR
connection. This patch adds a new flag to track this information.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Johan Hedberg 2014-08-14 12:33:17 +03:00 committed by Marcel Holtmann
parent 70157ef539
commit fe8bc5ac67
2 changed files with 4 additions and 0 deletions
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1
include/net/bluetooth/hci_core.h
View file

@ -559,6 +559,7 @@ enum {
HCI_CONN_AUTH_INITIATOR,
HCI_CONN_DROP,
HCI_CONN_PARAM_REMOVAL_PEND,
HCI_CONN_NEW_LINK_KEY,
};
static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)

3
net/bluetooth/hci_event.c
View file

@ -3249,6 +3249,8 @@ static void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
if (conn) {
clear_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
if ((key->type == HCI_LK_UNAUTH_COMBINATION_P192 ||
key->type == HCI_LK_UNAUTH_COMBINATION_P256) &&
conn->auth_type != 0xff && (conn->auth_type & 0x01)) {
@ -3301,6 +3303,7 @@ static void hci_link_key_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
conn->disc_timeout = HCI_DISCONN_TIMEOUT;
hci_conn_drop(conn);
set_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
conn_set_key(conn, ev->key_type, conn->pin_length);
if (!test_bit(HCI_MGMT, &hdev->dev_flags))