Hi Vinicius,
* Vinicius Costa Gomes <vinicius.gomes@xxxxxxxxxxxxx> [2010-11-23 12:06:33 -0300]:
> This will allow using the crypto subsystem for encrypting data. As SMP
> (Security Manager Protocol) is implemented almost entirely on the host
> side and the crypto module already implements the needed methods
> (AES-128), it makes sense to use it.
>
> Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@xxxxxxxxxxxxx>
> ---
> include/net/bluetooth/hci_core.h | 2 ++
> net/bluetooth/hci_core.c | 10 ++++++++++
> net/bluetooth/smp.c | 1 -
> 3 files changed, 12 insertions(+), 1 deletions(-)
>
> diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
> index e2d857a..ee5efa8 100644
> --- a/include/net/bluetooth/hci_core.h
> +++ b/include/net/bluetooth/hci_core.h
> @@ -135,6 +135,8 @@ struct hci_dev {
> __u32 req_status;
> __u32 req_result;
>
> + struct crypto_blkcipher *tfm;
> +
> struct inquiry_cache inq_cache;
> struct hci_conn_hash conn_hash;
> struct list_head blacklist;
> diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
> index 5750b80..0e98ffb 100644
> --- a/net/bluetooth/hci_core.c
> +++ b/net/bluetooth/hci_core.c
> @@ -41,6 +41,7 @@
> #include <linux/interrupt.h>
> #include <linux/notifier.h>
> #include <linux/rfkill.h>
> +#include <linux/crypto.h>
> #include <net/sock.h>
>
> #include <asm/system.h>
> @@ -947,6 +948,13 @@ int hci_register_dev(struct hci_dev *hdev)
> if (!hdev->workqueue)
> goto nomem;
>
> + hdev->tfm = crypto_alloc_blkcipher("ecb(aes)", 0, CRYPTO_ALG_ASYNC);
> + if (IS_ERR(hdev->tfm)) {
> + BT_ERR("Failed to load transform for ecb(aes): %ld",
> + PTR_ERR(hdev->tfm));
> + goto nomem;
> + }
> +
> hci_register_sysfs(hdev);
>
> hdev->rfkill = rfkill_alloc(hdev->name, &hdev->dev,
> @@ -987,6 +995,8 @@ int hci_unregister_dev(struct hci_dev *hdev)
> for (i = 0; i < NUM_REASSEMBLY; i++)
> kfree_skb(hdev->reassembly[i]);
>
> + crypto_free_blkcipher(hdev->tfm);
> +
> hci_notify(hdev, HCI_DEV_UNREG);
>
> if (hdev->rfkill) {
> diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
> index 7997978..8e8be47 100644
> --- a/net/bluetooth/smp.c
> +++ b/net/bluetooth/smp.c
> @@ -227,7 +227,6 @@ static void smp_cmd_pairing_confirm(struct l2cap_conn *conn, struct sk_buff *skb
> BT_DBG("");
>
> if (conn->hcon->out) {
> -
Change not related to your patch here.
--
Gustavo F. Padovan
http://profusion.mobi
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