diff options
| -rw-r--r-- | net/bluetooth/smp.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c index b5562abdd..c58e2757d 100644 --- a/net/bluetooth/smp.c +++ b/net/bluetooth/smp.c @@ -730,16 +730,36 @@ static u8 smp_ltk_encrypt(struct l2cap_conn *conn, u8 sec_level) return 1; } +bool smp_sufficient_security(struct hci_conn *hcon, u8 sec_level) +{ + if (sec_level == BT_SECURITY_LOW) { + BT_INFO("TRUE:(sec_level == BT_SECURITY_LOW)"); + return true; + } + if (hcon->sec_level >= sec_level) { + BT_INFO("TRUE:(hcon->sec_level >= sec_level)"); + return true; + } + BT_INFO("return false"); + return false; +} + static u8 smp_cmd_security_req(struct l2cap_conn *conn, struct sk_buff *skb) { struct smp_cmd_security_req *rp = (void *) skb->data; struct smp_cmd_pairing cp; struct hci_conn *hcon = conn->hcon; struct smp_chan *smp; + u8 sec_level; BT_DBG("conn %p", conn); - hcon->pending_sec_level = authreq_to_seclevel(rp->auth_req); + sec_level = authreq_to_seclevel(rp->auth_req); + if (smp_sufficient_security(hcon, sec_level)) + return 0; + + if (sec_level > hcon->pending_sec_level) + hcon->pending_sec_level = sec_level; if (smp_ltk_encrypt(conn, hcon->pending_sec_level)) return 0; |