* Vinicius Costa Gomes <vinicius.gomes@xxxxxxxxxxxxx> [2011-07-01 16:07:38 -0300]:
> As the LTK (the new type of key being handled now) has more data
> associated with it, we need to store this extra data and retrieve
> the keys based on that data.
>
> Methods for searching for a key and for adding a new LTK are
> introduced here.
>
> Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@xxxxxxxxxxxxx>
> ---
> include/net/bluetooth/hci_core.h | 5 ++
> net/bluetooth/hci_core.c | 81 ++++++++++++++++++++++++++++++++++++++
> 2 files changed, 86 insertions(+), 0 deletions(-)
>
> diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
> index c92e89b..751104a 100644
> --- a/include/net/bluetooth/hci_core.h
> +++ b/include/net/bluetooth/hci_core.h
> @@ -554,6 +554,11 @@ int hci_link_keys_clear(struct hci_dev *hdev);
> struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
> int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
> bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len);
> +struct link_key *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]);
> +struct link_key *hci_find_link_key_type(struct hci_dev *hdev,
> + bdaddr_t *bdaddr, u8 type);
> +int hci_add_ltk(struct hci_dev *hdev, int new_key, bdaddr_t *bdaddr,
> + __le16 ediv, u8 rand[8], u8 ltk[16]);
> int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
>
> int hci_remote_oob_data_clear(struct hci_dev *hdev);
> diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
> index 0029e17..bf9c023 100644
> --- a/net/bluetooth/hci_core.c
> +++ b/net/bluetooth/hci_core.c
> @@ -1059,6 +1059,50 @@ static int hci_persistent_key(struct hci_dev *hdev, struct hci_conn *conn,
> return 0;
> }
>
> +struct link_key *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8])
> +{
> + struct list_head *p;
> +
> + list_for_each(p, &hdev->link_keys) {
> + struct link_key *k;
> + struct key_master_id *id;
> +
> + k = list_entry(p, struct link_key, list);
list_for_each_entry() please.
> +
> + if (k->type != HCI_LK_SMP_LTK)
> + continue;
> +
> + if (k->dlen != sizeof(*id))
> + continue;
> +
> + id = (void *) &k->data;
> + if (id->ediv == ediv &&
> + (memcmp(rand, id->rand, sizeof(id->rand)) == 0))
> + return k;
> + }
> +
> + return NULL;
> +}
> +EXPORT_SYMBOL(hci_find_ltk);
> +
> +struct link_key *hci_find_link_key_type(struct hci_dev *hdev,
> + bdaddr_t *bdaddr, u8 type)
> +{
> + struct list_head *p;
> +
> + list_for_each(p, &hdev->link_keys) {
> + struct link_key *k;
> +
> + k = list_entry(p, struct link_key, list);
same here.
Gustavo
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