diff options
Diffstat (limited to 'net/bluetooth/smp.c')
| -rw-r--r-- | net/bluetooth/smp.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c index 952ba6376e1c..12e9c833885b 100644 --- a/net/bluetooth/smp.c +++ b/net/bluetooth/smp.c @@ -75,6 +75,7 @@ enum { struct smp_dev { struct crypto_blkcipher *tfm_aes; + struct crypto_hash *tfm_cmac; }; struct smp_chan { @@ -2936,6 +2937,7 @@ static struct l2cap_chan *smp_add_cid(struct hci_dev *hdev, u16 cid) struct l2cap_chan *chan; struct smp_dev *smp; struct crypto_blkcipher *tfm_aes; + struct crypto_hash *tfm_cmac; if (cid == L2CAP_CID_SMP_BREDR) { smp = NULL; @@ -2953,12 +2955,22 @@ static struct l2cap_chan *smp_add_cid(struct hci_dev *hdev, u16 cid) return ERR_CAST(tfm_aes); } + tfm_cmac = crypto_alloc_hash("cmac(aes)", 0, CRYPTO_ALG_ASYNC); + if (IS_ERR(tfm_cmac)) { + BT_ERR("Unable to create CMAC crypto context"); + crypto_free_blkcipher(tfm_aes); + kzfree(smp); + return ERR_CAST(tfm_cmac); + } + smp->tfm_aes = tfm_aes; + smp->tfm_cmac = tfm_cmac; create_chan: chan = l2cap_chan_create(); if (!chan) { crypto_free_blkcipher(smp->tfm_aes); + crypto_free_hash(smp->tfm_cmac); kzfree(smp); return ERR_PTR(-ENOMEM); } @@ -3005,6 +3017,8 @@ static void smp_del_chan(struct l2cap_chan *chan) chan->data = NULL; if (smp->tfm_aes) crypto_free_blkcipher(smp->tfm_aes); + if (smp->tfm_cmac) + crypto_free_hash(smp->tfm_cmac); kzfree(smp); } |