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[Bluetooth] Export details about authentication requirements

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With the Simple Pairing support, the authentication requirements are
an explicit setting during the bonding process. Track and enforce the
requirements and allow higher layers like L2CAP and RFCOMM to increase
them if needed.

This patch introduces a new IOCTL that allows to query the current
authentication requirements. It is also possible to detect Simple
Pairing support in the kernel this way.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Marcel Holtmann
2008-07-14 20:13:50 +02:00
parent f8558555f3
commit 40be492fe4
7 changed files with 68 additions and 26 deletions
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14
net/bluetooth/l2cap.c
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@ -2150,7 +2150,7 @@ static int l2cap_disconn_ind(struct hci_conn *hcon, u8 reason)
static int l2cap_auth_cfm(struct hci_conn *hcon, u8 status)
{
struct l2cap_chan_list *l;
struct l2cap_conn *conn = conn = hcon->l2cap_data;
struct l2cap_conn *conn = hcon->l2cap_data;
struct l2cap_conn_rsp rsp;
struct sock *sk;
int result;
@ -2165,11 +2165,17 @@ static int l2cap_auth_cfm(struct hci_conn *hcon, u8 status)
read_lock(&l->lock);
for (sk = l->head; sk; sk = l2cap_pi(sk)->next_c) {
struct l2cap_pinfo *pi = l2cap_pi(sk);
bh_lock_sock(sk);
if (sk->sk_state != BT_CONNECT2 ||
(l2cap_pi(sk)->link_mode & L2CAP_LM_ENCRYPT) ||
(l2cap_pi(sk)->link_mode & L2CAP_LM_SECURE)) {
if (sk->sk_state != BT_CONNECT2) {
bh_unlock_sock(sk);
continue;
}
if ((pi->link_mode & (L2CAP_LM_ENCRYPT | L2CAP_LM_SECURE)) &&
!(hcon->link_mode & HCI_LM_ENCRYPT)) {
bh_unlock_sock(sk);
continue;
}