* Vinicius Costa Gomes <vinicius.gomes@xxxxxxxxxxxxx> [2011-07-01 16:07:43 -0300]:
> Now that it's possible that the exchanged key is present in
> the link key list, we may be able to estabilish security with
> an already existing key, without need to perform any SMP
> procedure.
>
> Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@xxxxxxxxxxxxx>
> ---
> net/bluetooth/smp.c | 15 +++++++++++++++
> 1 files changed, 15 insertions(+), 0 deletions(-)
>
> diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
> index 34d236d..191aaec 100644
> --- a/net/bluetooth/smp.c
> +++ b/net/bluetooth/smp.c
> @@ -476,6 +476,20 @@ int smp_conn_security(struct l2cap_conn *conn, __u8 sec_level)
> authreq = seclevel_to_authreq(sec_level);
>
> if (hcon->link_mode & HCI_LM_MASTER) {
> + struct link_key *key;
> +
> + key = hci_find_link_key_type(hcon->hdev, conn->dst,
> + HCI_LK_SMP_LTK);
> + if (key) {
> + struct key_master_id *master = (void *) key->data;
> +
> + hci_le_start_enc(hcon, master->ediv, master->rand,
> + key->val);
> + goto done;
> + }
> + }
> +
> + if (hcon->link_mode & HCI_LM_MASTER) {
hey, why do you need this if? it is the same comparison as above.
Gustavo
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