Bluetooth: Move SMP crypto functions to a workqueue
The function crypto_blkcipher_setkey() called by smp_e()
can sleep, so all the crypto work has to be moved to
hci_dev workqueue.
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
diff --git a/include/net/bluetooth/smp.h b/include/net/bluetooth/smp.h
index a9ba72c..15b97d5 100644
--- a/include/net/bluetooth/smp.h
+++ b/include/net/bluetooth/smp.h
@@ -116,13 +116,18 @@
#define SMP_MAX_ENC_KEY_SIZE 16
struct smp_chan {
+ struct l2cap_conn *conn;
u8 preq[7]; /* SMP Pairing Request */
u8 prsp[7]; /* SMP Pairing Response */
- u8 prnd[16]; /* SMP Pairing Random */
+ u8 prnd[16]; /* SMP Pairing Random (local) */
+ u8 rrnd[16]; /* SMP Pairing Random (remote) */
u8 pcnf[16]; /* SMP Pairing Confirm */
u8 tk[16]; /* SMP Temporary Key */
u8 smp_key_size;
struct crypto_blkcipher *tfm;
+ struct work_struct confirm;
+ struct work_struct random;
+
};
/* SMP Commands */
@@ -130,4 +135,6 @@
int smp_sig_channel(struct l2cap_conn *conn, struct sk_buff *skb);
int smp_distribute_keys(struct l2cap_conn *conn, __u8 force);
+void smp_chan_destroy(struct l2cap_conn *conn);
+
#endif /* __SMP_H */