Commit 70157ef5 authored by Johan Hedberg's avatar Johan Hedberg Committed by Marcel Holtmann

Bluetooth: Use debug keys for SMP when HCI_USE_DEBUG_KEYS is set

The HCI_USE_DEBUG_KEYS flag is intended to force our side to always use
debug keys for pairing. This means both BR/EDR SSP as well as SMP with
LE Secure Connections. This patch updates the SMP code to use the debug
keys instead of generating a random local key pair when the flag is set.
Signed-off-by: default avatarJohan Hedberg <johan.hedberg@intel.com>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent 1408bb6e
......@@ -1585,18 +1585,27 @@ static u8 smp_cmd_pairing_req(struct l2cap_conn *conn, struct sk_buff *skb)
static u8 sc_send_public_key(struct smp_chan *smp)
{
struct hci_dev *hdev = smp->conn->hcon->hdev;
BT_DBG("");
while (true) {
/* Generate local key pair for Secure Connections */
if (!ecc_make_key(smp->local_pk, smp->local_sk))
return SMP_UNSPECIFIED;
if (test_bit(HCI_USE_DEBUG_KEYS, &hdev->dev_flags)) {
BT_DBG("Using debug keys");
memcpy(smp->local_pk, debug_pk, 64);
memcpy(smp->local_sk, debug_sk, 32);
set_bit(SMP_FLAG_DEBUG_KEY, &smp->flags);
} else {
while (true) {
/* Generate local key pair for Secure Connections */
if (!ecc_make_key(smp->local_pk, smp->local_sk))
return SMP_UNSPECIFIED;
/* This is unlikely, but we need to check that we didn't
* accidentially generate a debug key.
*/
if (memcmp(smp->local_sk, debug_sk, 32))
break;
/* This is unlikely, but we need to check that
* we didn't accidentially generate a debug key.
*/
if (memcmp(smp->local_sk, debug_sk, 32))
break;
}
}
BT_DBG("Local Public Key X: %32phN", smp->local_pk);
......
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