diff options
Diffstat (limited to 'net/bluetooth/smp.c')
| -rw-r--r-- | net/bluetooth/smp.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c index 83449a88a182..50e0ac692ec4 100644 --- a/net/bluetooth/smp.c +++ b/net/bluetooth/smp.c @@ -2168,6 +2168,25 @@ static u8 smp_cmd_pairing_random(struct l2cap_conn *conn, struct sk_buff *skb) smp_send_cmd(conn, SMP_CMD_PAIRING_RANDOM, sizeof(smp->prnd), smp->prnd); SMP_ALLOW_CMD(smp, SMP_CMD_DHKEY_CHECK); + + /* Only Just-Works pairing requires extra checks */ + if (smp->method != JUST_WORKS) + goto mackey_and_ltk; + + /* If there already exists long term key in local host, leave + * the decision to user space since the remote device could + * be legitimate or malicious. + */ + if (hci_find_ltk(hcon->hdev, &hcon->dst, hcon->dst_type, + hcon->role)) { + err = mgmt_user_confirm_request(hcon->hdev, &hcon->dst, + hcon->type, + hcon->dst_type, + passkey, 1); + if (err) + return SMP_UNSPECIFIED; + set_bit(SMP_FLAG_WAIT_USER, &smp->flags); + } } mackey_and_ltk: |