Bluetooth: Add key size checks for SMP
This patch implements a check in smp cmd pairing request and pairing
response to verify if encryption key maximum size is compatible in both
slave and master when SMP Pairing is requested. Keys are also masked to
the correct negotiated size.
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Signed-off-by: Anderson Briglia <anderson.briglia@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 157419a..bf1c7f6 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -400,6 +400,7 @@
__u8 prnd[16]; /* SMP Pairing Random */
__u8 pcnf[16]; /* SMP Pairing Confirm */
__u8 tk[16]; /* SMP Temporary Key */
+ __u8 smp_key_size;
struct timer_list security_timer;