Hi Vinícius,
* Vinicius Costa Gomes <vinicius.gomes@xxxxxxxxxxxxx> [2011-04-05 22:51:54 -0300]:
> This patch implements a simple version of the SMP Pairing Features
> exchange procedure (Vol. 3 Part H, Section 2.3.5.1).
>
> For now, everything that would cause a Pairing Method different of
> Just Works to be chosen is rejected.
>
> Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@xxxxxxxxxxxxx>
> ---
> net/bluetooth/hci_event.c | 1 +
> net/bluetooth/smp.c | 117 ++++++++++++++++++++++++--------------------
> 2 files changed, 65 insertions(+), 53 deletions(-)
>
> diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
> index aa0d013..e40ce9a 100644
> --- a/net/bluetooth/hci_event.c
> +++ b/net/bluetooth/hci_event.c
> @@ -1555,6 +1555,7 @@ static inline void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *
> /* Encryption implies authentication */
> conn->link_mode |= HCI_LM_AUTH;
> conn->link_mode |= HCI_LM_ENCRYPT;
> + conn->sec_level = conn->pending_sec_level;
> } else
> conn->link_mode &= ~HCI_LM_ENCRYPT;
> }
> diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
> index 2724b70..b6f52ab 100644
> --- a/net/bluetooth/smp.c
> +++ b/net/bluetooth/smp.c
> @@ -186,7 +186,30 @@ static void smp_send_cmd(struct l2cap_conn *conn, u8 code, u16 len, void *data)
> hci_send_acl(conn->hcon, skb, 0);
> }
>
> -static void smp_cmd_pairing_req(struct l2cap_conn *conn, struct sk_buff *skb)
> +static __u8 seclevel_to_authreq(__u8 level)
> +{
> + switch (level) {
> + case BT_SECURITY_HIGH:
> + /* Right now we don't support bonding */
> + return SMP_AUTH_MITM;
> +
> + default:
> + return SMP_AUTH_NONE;
> + }
> +}
> +
> +static void build_pairing_cmd(struct l2cap_conn *conn,
> + struct smp_cmd_pairing *cmd, __u8 authreq)
> +{
> + cmd->io_capability = SMP_IO_NO_INPUT_OUTPUT;
> + cmd->oob_flag = SMP_OOB_NOT_PRESENT;
> + cmd->max_key_size = 16;
> + cmd->init_key_dist = 0x00;
> + cmd->resp_key_dist = 0x00;
> + cmd->auth_req = authreq;
> +}
> +
Separate the creation of build_pairing_cmd() in a new commit.
--
Gustavo F. Padovan
http://profusion.mobi
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