Merge tag 'usb-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

[cascardo/linux.git] / drivers / staging / rtl8192e / rtllib_crypt_tkip.c

diff --git a/drivers/staging/rtl8192e/rtllib_crypt_tkip.c b/drivers/staging/rtl8192e/rtllib_crypt_tkip.c
index 2096d78..ae103b0 100644 (file)
--- a/drivers/staging/rtl8192e/rtllib_crypt_tkip.c
+++ b/drivers/staging/rtl8192e/rtllib_crypt_tkip.c
@@ -9,6 +9,8 @@
  * more details.
  */
 
+#include <crypto/hash.h>
+#include <crypto/skcipher.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/slab.h>
@@ -18,7 +20,6 @@
 #include <linux/if_ether.h>
 #include <linux/if_arp.h>
 #include <linux/string.h>
-#include <linux/crypto.h>
 #include <linux/scatterlist.h>
 #include <linux/crc32.h>
 #include <linux/etherdevice.h>
@@ -48,10 +49,10 @@ struct rtllib_tkip_data {
        u32 dot11RSNAStatsTKIPLocalMICFailures;
 
        int key_idx;
-       struct crypto_blkcipher *rx_tfm_arc4;
-       struct crypto_hash *rx_tfm_michael;
-       struct crypto_blkcipher *tx_tfm_arc4;
-       struct crypto_hash *tx_tfm_michael;
+       struct crypto_skcipher *rx_tfm_arc4;
+       struct crypto_ahash *rx_tfm_michael;
+       struct crypto_skcipher *tx_tfm_arc4;
+       struct crypto_ahash *tx_tfm_michael;
        /* scratch buffers for virt_to_page() (crypto API) */
        u8 rx_hdr[16];
        u8 tx_hdr[16];
@@ -65,32 +66,32 @@ static void *rtllib_tkip_init(int key_idx)
        if (priv == NULL)
                goto fail;
        priv->key_idx = key_idx;
-       priv->tx_tfm_arc4 = crypto_alloc_blkcipher("ecb(arc4)", 0,
-                       CRYPTO_ALG_ASYNC);
+       priv->tx_tfm_arc4 = crypto_alloc_skcipher("ecb(arc4)", 0,
+                                                 CRYPTO_ALG_ASYNC);
        if (IS_ERR(priv->tx_tfm_arc4)) {
                pr_debug("Could not allocate crypto API arc4\n");
                priv->tx_tfm_arc4 = NULL;
                goto fail;
        }
 
-       priv->tx_tfm_michael = crypto_alloc_hash("michael_mic", 0,
-                       CRYPTO_ALG_ASYNC);
+       priv->tx_tfm_michael = crypto_alloc_ahash("michael_mic", 0,
+                                                 CRYPTO_ALG_ASYNC);
        if (IS_ERR(priv->tx_tfm_michael)) {
                pr_debug("Could not allocate crypto API michael_mic\n");
                priv->tx_tfm_michael = NULL;
                goto fail;
        }
 
-       priv->rx_tfm_arc4 = crypto_alloc_blkcipher("ecb(arc4)", 0,
-                       CRYPTO_ALG_ASYNC);
+       priv->rx_tfm_arc4 = crypto_alloc_skcipher("ecb(arc4)", 0,
+                                                 CRYPTO_ALG_ASYNC);
        if (IS_ERR(priv->rx_tfm_arc4)) {
                pr_debug("Could not allocate crypto API arc4\n");
                priv->rx_tfm_arc4 = NULL;
                goto fail;
        }
 
-       priv->rx_tfm_michael = crypto_alloc_hash("michael_mic", 0,
-                       CRYPTO_ALG_ASYNC);
+       priv->rx_tfm_michael = crypto_alloc_ahash("michael_mic", 0,
+                                                 CRYPTO_ALG_ASYNC);
        if (IS_ERR(priv->rx_tfm_michael)) {
                pr_debug("Could not allocate crypto API michael_mic\n");
                priv->rx_tfm_michael = NULL;
@@ -100,14 +101,10 @@ static void *rtllib_tkip_init(int key_idx)
 
 fail:
        if (priv) {
-               if (priv->tx_tfm_michael)
-                       crypto_free_hash(priv->tx_tfm_michael);
-               if (priv->tx_tfm_arc4)
-                       crypto_free_blkcipher(priv->tx_tfm_arc4);
-               if (priv->rx_tfm_michael)
-                       crypto_free_hash(priv->rx_tfm_michael);
-               if (priv->rx_tfm_arc4)
-                       crypto_free_blkcipher(priv->rx_tfm_arc4);
+               crypto_free_ahash(priv->tx_tfm_michael);
+               crypto_free_skcipher(priv->tx_tfm_arc4);
+               crypto_free_ahash(priv->rx_tfm_michael);
+               crypto_free_skcipher(priv->rx_tfm_arc4);
                kfree(priv);
        }
 
@@ -120,14 +117,10 @@ static void rtllib_tkip_deinit(void *priv)
        struct rtllib_tkip_data *_priv = priv;
 
        if (_priv) {
-               if (_priv->tx_tfm_michael)
-                       crypto_free_hash(_priv->tx_tfm_michael);
-               if (_priv->tx_tfm_arc4)
-                       crypto_free_blkcipher(_priv->tx_tfm_arc4);
-               if (_priv->rx_tfm_michael)
-                       crypto_free_hash(_priv->rx_tfm_michael);
-               if (_priv->rx_tfm_arc4)
-                       crypto_free_blkcipher(_priv->rx_tfm_arc4);
+               crypto_free_ahash(_priv->tx_tfm_michael);
+               crypto_free_skcipher(_priv->tx_tfm_arc4);
+               crypto_free_ahash(_priv->rx_tfm_michael);
+               crypto_free_skcipher(_priv->rx_tfm_arc4);
        }
        kfree(priv);
 }
@@ -301,7 +294,6 @@ static int rtllib_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
        struct rtllib_hdr_4addr *hdr;
        struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
                                    MAX_DEV_ADDR_SIZE);
-       struct blkcipher_desc desc = {.tfm = tkey->tx_tfm_arc4};
        int ret = 0;
        u8 rc4key[16],  *icv;
        u32 crc;
@@ -347,6 +339,8 @@ static int rtllib_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
        *pos++ = (tkey->tx_iv32 >> 24) & 0xff;
 
        if (!tcb_desc->bHwSec) {
+               SKCIPHER_REQUEST_ON_STACK(req, tkey->tx_tfm_arc4);
+
                icv = skb_put(skb, 4);
                crc = ~crc32_le(~0, pos, len);
                icv[0] = crc;
@@ -357,8 +351,12 @@ static int rtllib_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
                sg_init_one(&sg, pos, len+4);
 
 
-               crypto_blkcipher_setkey(tkey->tx_tfm_arc4, rc4key, 16);
-               ret = crypto_blkcipher_encrypt(&desc, &sg, &sg, len + 4);
+               crypto_skcipher_setkey(tkey->tx_tfm_arc4, rc4key, 16);
+               skcipher_request_set_tfm(req, tkey->tx_tfm_arc4);
+               skcipher_request_set_callback(req, 0, NULL, NULL);
+               skcipher_request_set_crypt(req, &sg, &sg, len + 4, NULL);
+               ret = crypto_skcipher_encrypt(req);
+               skcipher_request_zero(req);
        }
 
        tkey->tx_iv16++;
@@ -369,8 +367,7 @@ static int rtllib_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
 
        if (!tcb_desc->bHwSec)
                return ret;
-       else
-               return 0;
+       return 0;
 
 
 }
@@ -384,12 +381,12 @@ static int rtllib_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
        struct rtllib_hdr_4addr *hdr;
        struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
                                    MAX_DEV_ADDR_SIZE);
-       struct blkcipher_desc desc = {.tfm = tkey->rx_tfm_arc4};
        u8 rc4key[16];
        u8 icv[4];
        u32 crc;
        struct scatterlist sg;
        int plen;
+       int err;
 
        if (skb->len < hdr_len + 8 + 4)
                return -1;
@@ -425,6 +422,8 @@ static int rtllib_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
        pos += 8;
 
        if (!tcb_desc->bHwSec || (skb->cb[0] == 1)) {
+               SKCIPHER_REQUEST_ON_STACK(req, tkey->rx_tfm_arc4);
+
                if ((iv32 < tkey->rx_iv32 ||
                    (iv32 == tkey->rx_iv32 && iv16 <= tkey->rx_iv16)) &&
                    tkey->initialized) {
@@ -450,8 +449,13 @@ static int rtllib_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
 
                sg_init_one(&sg, pos, plen+4);
 
-               crypto_blkcipher_setkey(tkey->rx_tfm_arc4, rc4key, 16);
-               if (crypto_blkcipher_decrypt(&desc, &sg, &sg, plen + 4)) {
+               crypto_skcipher_setkey(tkey->rx_tfm_arc4, rc4key, 16);
+               skcipher_request_set_tfm(req, tkey->rx_tfm_arc4);
+               skcipher_request_set_callback(req, 0, NULL, NULL);
+               skcipher_request_set_crypt(req, &sg, &sg, plen + 4, NULL);
+               err = crypto_skcipher_decrypt(req);
+               skcipher_request_zero(req);
+               if (err) {
                        if (net_ratelimit()) {
                                netdev_dbg(skb->dev,
                                           "Failed to decrypt received packet from %pM\n",
@@ -500,11 +504,12 @@ static int rtllib_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
 }
 
 
-static int michael_mic(struct crypto_hash *tfm_michael, u8 *key, u8 *hdr,
+static int michael_mic(struct crypto_ahash *tfm_michael, u8 *key, u8 *hdr,
                       u8 *data, size_t data_len, u8 *mic)
 {
-       struct hash_desc desc;
+       AHASH_REQUEST_ON_STACK(req, tfm_michael);
        struct scatterlist sg[2];
+       int err;
 
        if (tfm_michael == NULL) {
                pr_warn("michael_mic: tfm_michael == NULL\n");
@@ -514,12 +519,15 @@ static int michael_mic(struct crypto_hash *tfm_michael, u8 *key, u8 *hdr,
        sg_set_buf(&sg[0], hdr, 16);
        sg_set_buf(&sg[1], data, data_len);
 
-       if (crypto_hash_setkey(tfm_michael, key, 8))
+       if (crypto_ahash_setkey(tfm_michael, key, 8))
                return -1;
 
-       desc.tfm = tfm_michael;
-       desc.flags = 0;
-       return crypto_hash_digest(&desc, sg, data_len + 16, mic);
+       ahash_request_set_tfm(req, tfm_michael);
+       ahash_request_set_callback(req, 0, NULL, NULL);
+       ahash_request_set_crypt(req, sg, mic, data_len + 16);
+       err = crypto_ahash_digest(req);
+       ahash_request_zero(req);
+       return err;
 }
 
 static void michael_mic_hdr(struct sk_buff *skb, u8 *hdr)
@@ -655,10 +663,10 @@ static int rtllib_tkip_set_key(void *key, int len, u8 *seq, void *priv)
 {
        struct rtllib_tkip_data *tkey = priv;
        int keyidx;
-       struct crypto_hash *tfm = tkey->tx_tfm_michael;
-       struct crypto_blkcipher *tfm2 = tkey->tx_tfm_arc4;
-       struct crypto_hash *tfm3 = tkey->rx_tfm_michael;
-       struct crypto_blkcipher *tfm4 = tkey->rx_tfm_arc4;
+       struct crypto_ahash *tfm = tkey->tx_tfm_michael;
+       struct crypto_skcipher *tfm2 = tkey->tx_tfm_arc4;
+       struct crypto_ahash *tfm3 = tkey->rx_tfm_michael;
+       struct crypto_skcipher *tfm4 = tkey->rx_tfm_arc4;
 
        keyidx = tkey->key_idx;
        memset(tkey, 0, sizeof(*tkey));