From: Herbert Xu <herbert@gondor.apana.org.au>
To: Linux Crypto Mailing List <linux-crypto@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
netdev@vger.kernel.org, devel@driverdev.osuosl.org,
dm-devel@redhat.com, linux-wireless@vger.kernel.org,
linux-cifs@vger.kernel.org, ecryptfs@vger.kernel.org,
linux-ext4@vger.kernel.org,
linux-f2fs-devel@lists.sourceforge.net,
linux-nfs@vger.kernel.org, keyrings@vger.kernel.org,
linux-bluetooth@vger.kernel.org, ceph-devel@vger.kernel.org,
linux-wpan@vger.kernel.org, linux-afs@lists.infradead.org,
drbd-dev@lists.linbit.com, open-iscsi@googlegroups.com
Subject: [PATCH 15/26] Bluetooth: Use skcipher and hash
Date: Sun, 24 Jan 2016 21:18:30 +0800 [thread overview]
Message-ID: <E1aNKYo-0008Dp-5h@gondolin.me.apana.org.au> (raw)
In-Reply-To: 20160124131021.GA31153@gondor.apana.org.au
This patch replaces uses of blkcipher with skcipher and the long
obsolete hash interface with shash.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
net/bluetooth/smp.c | 135 ++++++++++++++++++++++++----------------------------
1 file changed, 63 insertions(+), 72 deletions(-)
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index ffed8a1..78ad7d6 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -21,9 +21,10 @@
*/
#include <linux/debugfs.h>
-#include <linux/crypto.h>
#include <linux/scatterlist.h>
#include <crypto/b128ops.h>
+#include <crypto/hash.h>
+#include <crypto/skcipher.h>
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
@@ -87,8 +88,8 @@ struct smp_dev {
u8 min_key_size;
u8 max_key_size;
- struct crypto_blkcipher *tfm_aes;
- struct crypto_hash *tfm_cmac;
+ struct crypto_skcipher *tfm_aes;
+ struct crypto_shash *tfm_cmac;
};
struct smp_chan {
@@ -126,8 +127,8 @@ struct smp_chan {
u8 dhkey[32];
u8 mackey[16];
- struct crypto_blkcipher *tfm_aes;
- struct crypto_hash *tfm_cmac;
+ struct crypto_skcipher *tfm_aes;
+ struct crypto_shash *tfm_cmac;
};
/* These debug key values are defined in the SMP section of the core
@@ -165,12 +166,11 @@ static inline void swap_buf(const u8 *src, u8 *dst, size_t len)
* AES-CMAC, f4, f5, f6, g2 and h6.
*/
-static int aes_cmac(struct crypto_hash *tfm, const u8 k[16], const u8 *m,
+static int aes_cmac(struct crypto_shash *tfm, const u8 k[16], const u8 *m,
size_t len, u8 mac[16])
{
uint8_t tmp[16], mac_msb[16], msg_msb[CMAC_MSG_MAX];
- struct hash_desc desc;
- struct scatterlist sg;
+ SHASH_DESC_ON_STACK(desc, tfm);
int err;
if (len > CMAC_MSG_MAX)
@@ -181,10 +181,8 @@ static int aes_cmac(struct crypto_hash *tfm, const u8 k[16], const u8 *m,
return -EINVAL;
}
- desc.tfm = tfm;
- desc.flags = 0;
-
- crypto_hash_init(&desc);
+ desc->tfm = tfm;
+ desc->flags = 0;
/* Swap key and message from LSB to MSB */
swap_buf(k, tmp, 16);
@@ -193,23 +191,16 @@ static int aes_cmac(struct crypto_hash *tfm, const u8 k[16], const u8 *m,
SMP_DBG("msg (len %zu) %*phN", len, (int) len, m);
SMP_DBG("key %16phN", k);
- err = crypto_hash_setkey(tfm, tmp, 16);
+ err = crypto_shash_setkey(tfm, tmp, 16);
if (err) {
BT_ERR("cipher setkey failed: %d", err);
return err;
}
- sg_init_one(&sg, msg_msb, len);
-
- err = crypto_hash_update(&desc, &sg, len);
+ err = crypto_shash_digest(desc, msg_msb, len, mac_msb);
+ shash_desc_zero(desc);
if (err) {
- BT_ERR("Hash update error %d", err);
- return err;
- }
-
- err = crypto_hash_final(&desc, mac_msb);
- if (err) {
- BT_ERR("Hash final error %d", err);
+ BT_ERR("Hash computation error %d", err);
return err;
}
@@ -220,8 +211,8 @@ static int aes_cmac(struct crypto_hash *tfm, const u8 k[16], const u8 *m,
return 0;
}
-static int smp_f4(struct crypto_hash *tfm_cmac, const u8 u[32], const u8 v[32],
- const u8 x[16], u8 z, u8 res[16])
+static int smp_f4(struct crypto_shash *tfm_cmac, const u8 u[32],
+ const u8 v[32], const u8 x[16], u8 z, u8 res[16])
{
u8 m[65];
int err;
@@ -243,7 +234,7 @@ static int smp_f4(struct crypto_hash *tfm_cmac, const u8 u[32], const u8 v[32],
return err;
}
-static int smp_f5(struct crypto_hash *tfm_cmac, const u8 w[32],
+static int smp_f5(struct crypto_shash *tfm_cmac, const u8 w[32],
const u8 n1[16], const u8 n2[16], const u8 a1[7],
const u8 a2[7], u8 mackey[16], u8 ltk[16])
{
@@ -296,7 +287,7 @@ static int smp_f5(struct crypto_hash *tfm_cmac, const u8 w[32],
return 0;
}
-static int smp_f6(struct crypto_hash *tfm_cmac, const u8 w[16],
+static int smp_f6(struct crypto_shash *tfm_cmac, const u8 w[16],
const u8 n1[16], const u8 n2[16], const u8 r[16],
const u8 io_cap[3], const u8 a1[7], const u8 a2[7],
u8 res[16])
@@ -324,7 +315,7 @@ static int smp_f6(struct crypto_hash *tfm_cmac, const u8 w[16],
return err;
}
-static int smp_g2(struct crypto_hash *tfm_cmac, const u8 u[32], const u8 v[32],
+static int smp_g2(struct crypto_shash *tfm_cmac, const u8 u[32], const u8 v[32],
const u8 x[16], const u8 y[16], u32 *val)
{
u8 m[80], tmp[16];
@@ -350,7 +341,7 @@ static int smp_g2(struct crypto_hash *tfm_cmac, const u8 u[32], const u8 v[32],
return 0;
}
-static int smp_h6(struct crypto_hash *tfm_cmac, const u8 w[16],
+static int smp_h6(struct crypto_shash *tfm_cmac, const u8 w[16],
const u8 key_id[4], u8 res[16])
{
int err;
@@ -370,9 +361,9 @@ static int smp_h6(struct crypto_hash *tfm_cmac, const u8 w[16],
* s1 and ah.
*/
-static int smp_e(struct crypto_blkcipher *tfm, const u8 *k, u8 *r)
+static int smp_e(struct crypto_skcipher *tfm, const u8 *k, u8 *r)
{
- struct blkcipher_desc desc;
+ SKCIPHER_REQUEST_ON_STACK(req, tfm);
struct scatterlist sg;
uint8_t tmp[16], data[16];
int err;
@@ -384,13 +375,10 @@ static int smp_e(struct crypto_blkcipher *tfm, const u8 *k, u8 *r)
return -EINVAL;
}
- desc.tfm = tfm;
- desc.flags = 0;
-
/* The most significant octet of key corresponds to k[0] */
swap_buf(k, tmp, 16);
- err = crypto_blkcipher_setkey(tfm, tmp, 16);
+ err = crypto_skcipher_setkey(tfm, tmp, 16);
if (err) {
BT_ERR("cipher setkey failed: %d", err);
return err;
@@ -401,7 +389,12 @@ static int smp_e(struct crypto_blkcipher *tfm, const u8 *k, u8 *r)
sg_init_one(&sg, data, 16);
- err = crypto_blkcipher_encrypt(&desc, &sg, &sg, 16);
+ skcipher_request_set_tfm(req, tfm);
+ skcipher_request_set_callback(req, 0, NULL, NULL);
+ skcipher_request_set_crypt(req, &sg, &sg, 16, NULL);
+
+ err = crypto_skcipher_encrypt(req);
+ skcipher_request_zero(req);
if (err)
BT_ERR("Encrypt data error %d", err);
@@ -413,7 +406,7 @@ static int smp_e(struct crypto_blkcipher *tfm, const u8 *k, u8 *r)
return err;
}
-static int smp_c1(struct crypto_blkcipher *tfm_aes, const u8 k[16],
+static int smp_c1(struct crypto_skcipher *tfm_aes, const u8 k[16],
const u8 r[16], const u8 preq[7], const u8 pres[7], u8 _iat,
const bdaddr_t *ia, u8 _rat, const bdaddr_t *ra, u8 res[16])
{
@@ -462,7 +455,7 @@ static int smp_c1(struct crypto_blkcipher *tfm_aes, const u8 k[16],
return err;
}
-static int smp_s1(struct crypto_blkcipher *tfm_aes, const u8 k[16],
+static int smp_s1(struct crypto_skcipher *tfm_aes, const u8 k[16],
const u8 r1[16], const u8 r2[16], u8 _r[16])
{
int err;
@@ -478,7 +471,7 @@ static int smp_s1(struct crypto_blkcipher *tfm_aes, const u8 k[16],
return err;
}
-static int smp_ah(struct crypto_blkcipher *tfm, const u8 irk[16],
+static int smp_ah(struct crypto_skcipher *tfm, const u8 irk[16],
const u8 r[3], u8 res[3])
{
u8 _res[16];
@@ -766,8 +759,8 @@ static void smp_chan_destroy(struct l2cap_conn *conn)
kzfree(smp->slave_csrk);
kzfree(smp->link_key);
- crypto_free_blkcipher(smp->tfm_aes);
- crypto_free_hash(smp->tfm_cmac);
+ crypto_free_skcipher(smp->tfm_aes);
+ crypto_free_shash(smp->tfm_cmac);
/* Ensure that we don't leave any debug key around if debug key
* support hasn't been explicitly enabled.
@@ -1382,17 +1375,17 @@ static struct smp_chan *smp_chan_create(struct l2cap_conn *conn)
if (!smp)
return NULL;
- smp->tfm_aes = crypto_alloc_blkcipher("ecb(aes)", 0, CRYPTO_ALG_ASYNC);
+ smp->tfm_aes = crypto_alloc_skcipher("ecb(aes)", 0, CRYPTO_ALG_ASYNC);
if (IS_ERR(smp->tfm_aes)) {
BT_ERR("Unable to create ECB crypto context");
kzfree(smp);
return NULL;
}
- smp->tfm_cmac = crypto_alloc_hash("cmac(aes)", 0, CRYPTO_ALG_ASYNC);
+ smp->tfm_cmac = crypto_alloc_shash("cmac(aes)", 0, 0);
if (IS_ERR(smp->tfm_cmac)) {
BT_ERR("Unable to create CMAC crypto context");
- crypto_free_blkcipher(smp->tfm_aes);
+ crypto_free_skcipher(smp->tfm_aes);
kzfree(smp);
return NULL;
}
@@ -3143,8 +3136,8 @@ 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;
+ struct crypto_skcipher *tfm_aes;
+ struct crypto_shash *tfm_cmac;
if (cid == L2CAP_CID_SMP_BREDR) {
smp = NULL;
@@ -3155,17 +3148,17 @@ static struct l2cap_chan *smp_add_cid(struct hci_dev *hdev, u16 cid)
if (!smp)
return ERR_PTR(-ENOMEM);
- tfm_aes = crypto_alloc_blkcipher("ecb(aes)", 0, CRYPTO_ALG_ASYNC);
+ tfm_aes = crypto_alloc_skcipher("ecb(aes)", 0, CRYPTO_ALG_ASYNC);
if (IS_ERR(tfm_aes)) {
BT_ERR("Unable to create ECB crypto context");
kzfree(smp);
return ERR_CAST(tfm_aes);
}
- tfm_cmac = crypto_alloc_hash("cmac(aes)", 0, CRYPTO_ALG_ASYNC);
+ tfm_cmac = crypto_alloc_shash("cmac(aes)", 0, 0);
if (IS_ERR(tfm_cmac)) {
BT_ERR("Unable to create CMAC crypto context");
- crypto_free_blkcipher(tfm_aes);
+ crypto_free_skcipher(tfm_aes);
kzfree(smp);
return ERR_CAST(tfm_cmac);
}
@@ -3179,8 +3172,8 @@ create_chan:
chan = l2cap_chan_create();
if (!chan) {
if (smp) {
- crypto_free_blkcipher(smp->tfm_aes);
- crypto_free_hash(smp->tfm_cmac);
+ crypto_free_skcipher(smp->tfm_aes);
+ crypto_free_shash(smp->tfm_cmac);
kzfree(smp);
}
return ERR_PTR(-ENOMEM);
@@ -3226,10 +3219,8 @@ static void smp_del_chan(struct l2cap_chan *chan)
smp = chan->data;
if (smp) {
chan->data = NULL;
- if (smp->tfm_aes)
- crypto_free_blkcipher(smp->tfm_aes);
- if (smp->tfm_cmac)
- crypto_free_hash(smp->tfm_cmac);
+ crypto_free_skcipher(smp->tfm_aes);
+ crypto_free_shash(smp->tfm_cmac);
kzfree(smp);
}
@@ -3465,7 +3456,7 @@ void smp_unregister(struct hci_dev *hdev)
#if IS_ENABLED(CONFIG_BT_SELFTEST_SMP)
-static int __init test_ah(struct crypto_blkcipher *tfm_aes)
+static int __init test_ah(struct crypto_skcipher *tfm_aes)
{
const u8 irk[16] = {
0x9b, 0x7d, 0x39, 0x0a, 0xa6, 0x10, 0x10, 0x34,
@@ -3485,7 +3476,7 @@ static int __init test_ah(struct crypto_blkcipher *tfm_aes)
return 0;
}
-static int __init test_c1(struct crypto_blkcipher *tfm_aes)
+static int __init test_c1(struct crypto_skcipher *tfm_aes)
{
const u8 k[16] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
@@ -3515,7 +3506,7 @@ static int __init test_c1(struct crypto_blkcipher *tfm_aes)
return 0;
}
-static int __init test_s1(struct crypto_blkcipher *tfm_aes)
+static int __init test_s1(struct crypto_skcipher *tfm_aes)
{
const u8 k[16] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
@@ -3540,7 +3531,7 @@ static int __init test_s1(struct crypto_blkcipher *tfm_aes)
return 0;
}
-static int __init test_f4(struct crypto_hash *tfm_cmac)
+static int __init test_f4(struct crypto_shash *tfm_cmac)
{
const u8 u[32] = {
0xe6, 0x9d, 0x35, 0x0e, 0x48, 0x01, 0x03, 0xcc,
@@ -3572,7 +3563,7 @@ static int __init test_f4(struct crypto_hash *tfm_cmac)
return 0;
}
-static int __init test_f5(struct crypto_hash *tfm_cmac)
+static int __init test_f5(struct crypto_shash *tfm_cmac)
{
const u8 w[32] = {
0x98, 0xa6, 0xbf, 0x73, 0xf3, 0x34, 0x8d, 0x86,
@@ -3609,7 +3600,7 @@ static int __init test_f5(struct crypto_hash *tfm_cmac)
return 0;
}
-static int __init test_f6(struct crypto_hash *tfm_cmac)
+static int __init test_f6(struct crypto_shash *tfm_cmac)
{
const u8 w[16] = {
0x20, 0x6e, 0x63, 0xce, 0x20, 0x6a, 0x3f, 0xfd,
@@ -3642,7 +3633,7 @@ static int __init test_f6(struct crypto_hash *tfm_cmac)
return 0;
}
-static int __init test_g2(struct crypto_hash *tfm_cmac)
+static int __init test_g2(struct crypto_shash *tfm_cmac)
{
const u8 u[32] = {
0xe6, 0x9d, 0x35, 0x0e, 0x48, 0x01, 0x03, 0xcc,
@@ -3674,7 +3665,7 @@ static int __init test_g2(struct crypto_hash *tfm_cmac)
return 0;
}
-static int __init test_h6(struct crypto_hash *tfm_cmac)
+static int __init test_h6(struct crypto_shash *tfm_cmac)
{
const u8 w[16] = {
0x9b, 0x7d, 0x39, 0x0a, 0xa6, 0x10, 0x10, 0x34,
@@ -3711,8 +3702,8 @@ static const struct file_operations test_smp_fops = {
.llseek = default_llseek,
};
-static int __init run_selftests(struct crypto_blkcipher *tfm_aes,
- struct crypto_hash *tfm_cmac)
+static int __init run_selftests(struct crypto_skcipher *tfm_aes,
+ struct crypto_shash *tfm_cmac)
{
ktime_t calltime, delta, rettime;
unsigned long long duration;
@@ -3789,27 +3780,27 @@ done:
int __init bt_selftest_smp(void)
{
- struct crypto_blkcipher *tfm_aes;
- struct crypto_hash *tfm_cmac;
+ struct crypto_skcipher *tfm_aes;
+ struct crypto_shash *tfm_cmac;
int err;
- tfm_aes = crypto_alloc_blkcipher("ecb(aes)", 0, CRYPTO_ALG_ASYNC);
+ tfm_aes = crypto_alloc_skcipher("ecb(aes)", 0, CRYPTO_ALG_ASYNC);
if (IS_ERR(tfm_aes)) {
BT_ERR("Unable to create ECB crypto context");
return PTR_ERR(tfm_aes);
}
- tfm_cmac = crypto_alloc_hash("cmac(aes)", 0, CRYPTO_ALG_ASYNC);
+ tfm_cmac = crypto_alloc_shash("cmac(aes)", 0, CRYPTO_ALG_ASYNC);
if (IS_ERR(tfm_cmac)) {
BT_ERR("Unable to create CMAC crypto context");
- crypto_free_blkcipher(tfm_aes);
+ crypto_free_skcipher(tfm_aes);
return PTR_ERR(tfm_cmac);
}
err = run_selftests(tfm_aes, tfm_cmac);
- crypto_free_hash(tfm_cmac);
- crypto_free_blkcipher(tfm_aes);
+ crypto_free_shash(tfm_cmac);
+ crypto_free_skcipher(tfm_aes);
return err;
}
next prev parent reply other threads:[~2016-01-24 13:19 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-24 13:10 [PATCH 0/26] crypto: Use skcipher and ahash/shash where possible Herbert Xu
2016-01-24 13:10 ` Herbert Xu
2016-01-24 13:16 ` [PATCH 1/26] block: cryptoloop - Use new skcipher interface Herbert Xu
2016-01-24 13:16 ` Herbert Xu
2016-01-24 13:37 ` kbuild test robot
2016-01-24 13:37 ` kbuild test robot
2016-01-24 13:39 ` Herbert Xu
2016-01-24 13:16 ` [PATCH 2/26] ppp_mppe: Use skcipher and ahash Herbert Xu
2016-01-24 13:16 ` [PATCH 3/26] staging: rtl8192e: Replace uses of obsolete blkcipher and hash Herbert Xu
2016-01-24 20:00 ` Greg KH
2016-01-24 20:00 ` Greg KH
2016-01-24 13:16 ` [PATCH 4/26] dm crypt: Use skcipher and ahash Herbert Xu
2016-01-24 13:43 ` kbuild test robot
2016-01-24 13:16 ` [PATCH 5/26] orinoco: Use ahash Herbert Xu
2016-01-24 13:16 ` [PATCH 6/26] staging: rtl8192u: Use skcipher and ahash Herbert Xu
2016-01-24 13:16 ` Herbert Xu
2016-01-24 20:00 ` Greg KH
2016-01-24 20:00 ` Greg KH
2016-01-24 13:17 ` [PATCH 7/26] wusb: Use skcipher Herbert Xu
2016-01-24 13:38 ` kbuild test robot
2016-01-24 13:38 ` kbuild test robot
2016-01-24 13:17 ` [PATCH 8/26] cifs: " Herbert Xu
2016-01-24 13:17 ` [PATCH 9/26] eCryptfs: Use skcipher and shash Herbert Xu
2016-01-24 13:38 ` kbuild test robot
2016-01-24 13:17 ` [PATCH 10/26] ext4: Use skcipher Herbert Xu
2016-01-24 13:17 ` [PATCH 11/26] f2fs: " Herbert Xu
2016-01-24 13:17 ` [PATCH 12/26] sunrpc: Use skcipher and ahash/shash Herbert Xu
2016-01-24 13:18 ` [PATCH 13/26] lib80211: Use skcipher and ahash Herbert Xu
2016-01-24 13:18 ` [PATCH 14/26] KEYS: Use skcipher Herbert Xu
2016-01-24 13:18 ` Herbert Xu [this message]
2016-01-24 13:35 ` [PATCH 15/26] Bluetooth: Use skcipher and hash kbuild test robot
2016-01-25 6:48 ` Marcel Holtmann
2016-01-24 13:18 ` [PATCH 16/26] libceph: Use skcipher Herbert Xu
2016-01-25 16:18 ` Ilya Dryomov
2016-01-26 10:54 ` Herbert Xu
2016-01-26 10:54 ` Herbert Xu
2016-01-26 11:29 ` Ilya Dryomov
2016-01-26 11:29 ` Ilya Dryomov
2016-01-26 11:33 ` Herbert Xu
2016-01-26 11:33 ` Herbert Xu
2016-01-24 13:18 ` [PATCH 17/26] mac802154: " Herbert Xu
2016-01-26 16:55 ` Stefan Schmidt
2016-01-24 13:19 ` [PATCH 18/26] rxrpc: " Herbert Xu
2016-01-24 13:19 ` Herbert Xu
2016-01-24 13:19 ` [PATCH 19/26] ipsec: Use skcipher and ahash when probing algorithms Herbert Xu
2016-01-24 13:42 ` kbuild test robot
2016-01-24 13:42 ` kbuild test robot
2016-01-25 6:02 ` David Miller
2016-01-24 13:19 ` [PATCH 20/26] drbd: Use shash and ahash Herbert Xu
2016-01-24 13:19 ` [PATCH 21/26] nfc: s3fwrn5: Use shash Herbert Xu
2016-01-24 13:48 ` kbuild test robot
2016-01-24 13:48 ` kbuild test robot
2016-01-24 13:19 ` [PATCH 22/26] iscsi_tcp: Use ahash Herbert Xu
2016-01-25 19:50 ` [dm-devel] " Mike Christie
2016-01-25 19:50 ` Mike Christie
2016-01-24 13:19 ` [PATCH 23/26] iscsi-target: Use shash and ahash Herbert Xu
2016-01-24 13:20 ` [PATCH 24/26] nfsd: Use shash Herbert Xu
2016-01-24 13:51 ` kbuild test robot
2016-01-24 13:51 ` kbuild test robot
2016-01-24 13:20 ` [PATCH 25/26] sctp: " Herbert Xu
2016-01-25 6:02 ` David Miller
2016-01-25 6:02 ` David Miller
2016-01-24 13:20 ` [PATCH 26/26] tcp: Use ahash Herbert Xu
2016-01-25 6:01 ` David Miller
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