From patchwork Sun Jan 24 13:16:57 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Herbert Xu X-Patchwork-Id: 8099971 Return-Path: X-Original-To: patchwork-linux-wpan@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 48E469F818 for ; Sun, 24 Jan 2016 13:28:29 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id F11CA202EB for ; Sun, 24 Jan 2016 13:28:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8C3F4202AE for ; Sun, 24 Jan 2016 13:28:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754007AbcAXNRn (ORCPT ); Sun, 24 Jan 2016 08:17:43 -0500 Received: from helcar.hengli.com.au ([209.40.204.226]:34046 "EHLO helcar.hengli.com.au" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753668AbcAXNRh (ORCPT ); Sun, 24 Jan 2016 08:17:37 -0500 Received: from gondolin.me.apana.org.au ([192.168.0.6]) by norbury.hengli.com.au with esmtp (Exim 4.80 #3 (Debian)) id 1aNKXm-0007lC-No; Mon, 25 Jan 2016 00:17:26 +1100 Received: from herbert by gondolin.me.apana.org.au with local (Exim 4.80) (envelope-from ) id 1aNKXJ-0008BG-BI; Sun, 24 Jan 2016 21:16:57 +0800 Subject: [PATCH 6/26] staging: rtl8192u: Use skcipher and ahash References: <20160124131021.GA31153@gondor.apana.org.au> To: Linux Crypto Mailing List , Linux Kernel Mailing List , 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 Message-Id: From: Herbert Xu Date: Sun, 24 Jan 2016 21:16:57 +0800 Sender: linux-wpan-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wpan@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch replaces uses of blkcipher with skcipher, and the long obsolete hash interface with ahash. Signed-off-by: Herbert Xu Acked-by: Greg Kroah-Hartman --- drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_tkip.c | 92 +++++++------- drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_wep.c | 46 ++++--- 2 files changed, 81 insertions(+), 57 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-wpan" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_tkip.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_tkip.c index 908bc2e..6fa96d5 100644 --- a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_tkip.c +++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_tkip.c @@ -21,7 +21,8 @@ #include "ieee80211.h" -#include +#include +#include #include #include @@ -52,10 +53,10 @@ struct ieee80211_tkip_data { 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], tx_hdr[16]; @@ -70,7 +71,7 @@ static void *ieee80211_tkip_init(int key_idx) goto fail; priv->key_idx = key_idx; - priv->tx_tfm_arc4 = crypto_alloc_blkcipher("ecb(arc4)", 0, + priv->tx_tfm_arc4 = crypto_alloc_skcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC); if (IS_ERR(priv->tx_tfm_arc4)) { printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate " @@ -79,7 +80,7 @@ static void *ieee80211_tkip_init(int key_idx) goto fail; } - priv->tx_tfm_michael = crypto_alloc_hash("michael_mic", 0, + priv->tx_tfm_michael = crypto_alloc_ahash("michael_mic", 0, CRYPTO_ALG_ASYNC); if (IS_ERR(priv->tx_tfm_michael)) { printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate " @@ -88,7 +89,7 @@ static void *ieee80211_tkip_init(int key_idx) goto fail; } - priv->rx_tfm_arc4 = crypto_alloc_blkcipher("ecb(arc4)", 0, + priv->rx_tfm_arc4 = crypto_alloc_skcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC); if (IS_ERR(priv->rx_tfm_arc4)) { printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate " @@ -97,7 +98,7 @@ static void *ieee80211_tkip_init(int key_idx) goto fail; } - priv->rx_tfm_michael = crypto_alloc_hash("michael_mic", 0, + priv->rx_tfm_michael = crypto_alloc_ahash("michael_mic", 0, CRYPTO_ALG_ASYNC); if (IS_ERR(priv->rx_tfm_michael)) { printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate " @@ -110,14 +111,10 @@ static void *ieee80211_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); } @@ -130,14 +127,10 @@ static void ieee80211_tkip_deinit(void *priv) struct ieee80211_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); } @@ -312,7 +305,6 @@ static int ieee80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv) u8 *pos; struct rtl_80211_hdr_4addr *hdr; cb_desc *tcb_desc = (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; @@ -357,15 +349,21 @@ static int ieee80211_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; icv[1] = crc >> 8; icv[2] = crc >> 16; icv[3] = crc >> 24; - crypto_blkcipher_setkey(tkey->tx_tfm_arc4, rc4key, 16); + crypto_skcipher_setkey(tkey->tx_tfm_arc4, rc4key, 16); sg_init_one(&sg, pos, len+4); - ret = crypto_blkcipher_encrypt(&desc, &sg, &sg, len + 4); + 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++; @@ -390,12 +388,12 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv) u16 iv16; struct rtl_80211_hdr_4addr *hdr; cb_desc *tcb_desc = (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; @@ -429,6 +427,8 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv) pos += 8; if (!tcb_desc->bHwSec) { + SKCIPHER_REQUEST_ON_STACK(req, tkey->rx_tfm_arc4); + if (iv32 < tkey->rx_iv32 || (iv32 == tkey->rx_iv32 && iv16 <= tkey->rx_iv16)) { if (net_ratelimit()) { @@ -449,10 +449,16 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv) plen = skb->len - hdr_len - 12; - crypto_blkcipher_setkey(tkey->rx_tfm_arc4, rc4key, 16); + crypto_skcipher_setkey(tkey->rx_tfm_arc4, rc4key, 16); sg_init_one(&sg, pos, plen+4); - if (crypto_blkcipher_decrypt(&desc, &sg, &sg, plen + 4)) { + 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()) { printk(KERN_DEBUG ": TKIP: failed to decrypt " "received packet from %pM\n", @@ -501,11 +507,12 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv) return keyidx; } -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) { printk(KERN_WARNING "michael_mic: tfm_michael == NULL\n"); @@ -516,12 +523,15 @@ 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) @@ -660,10 +670,10 @@ static int ieee80211_tkip_set_key(void *key, int len, u8 *seq, void *priv) { struct ieee80211_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)); diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_wep.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_wep.c index 681611d..ababb6d 100644 --- a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_wep.c +++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_wep.c @@ -18,7 +18,7 @@ #include "ieee80211.h" -#include +#include #include #include @@ -32,8 +32,8 @@ struct prism2_wep_data { u8 key[WEP_KEY_LEN + 1]; u8 key_len; u8 key_idx; - struct crypto_blkcipher *tx_tfm; - struct crypto_blkcipher *rx_tfm; + struct crypto_skcipher *tx_tfm; + struct crypto_skcipher *rx_tfm; }; @@ -46,10 +46,10 @@ static void *prism2_wep_init(int keyidx) return NULL; priv->key_idx = keyidx; - priv->tx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC); + priv->tx_tfm = crypto_alloc_skcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC); if (IS_ERR(priv->tx_tfm)) goto free_priv; - priv->rx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC); + priv->rx_tfm = crypto_alloc_skcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC); if (IS_ERR(priv->rx_tfm)) goto free_tx; @@ -58,7 +58,7 @@ static void *prism2_wep_init(int keyidx) return priv; free_tx: - crypto_free_blkcipher(priv->tx_tfm); + crypto_free_skcipher(priv->tx_tfm); free_priv: kfree(priv); return NULL; @@ -70,10 +70,8 @@ static void prism2_wep_deinit(void *priv) struct prism2_wep_data *_priv = priv; if (_priv) { - if (_priv->tx_tfm) - crypto_free_blkcipher(_priv->tx_tfm); - if (_priv->rx_tfm) - crypto_free_blkcipher(_priv->rx_tfm); + crypto_free_skcipher(_priv->tx_tfm); + crypto_free_skcipher(_priv->rx_tfm); } kfree(priv); } @@ -91,10 +89,10 @@ static int prism2_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv) u8 key[WEP_KEY_LEN + 3]; u8 *pos; cb_desc *tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); - struct blkcipher_desc desc = {.tfm = wep->tx_tfm}; u32 crc; u8 *icv; struct scatterlist sg; + int err; if (skb_headroom(skb) < 4 || skb_tailroom(skb) < 4 || skb->len < hdr_len) @@ -129,6 +127,8 @@ static int prism2_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv) memcpy(key + 3, wep->key, wep->key_len); if (!tcb_desc->bHwSec) { + SKCIPHER_REQUEST_ON_STACK(req, wep->tx_tfm); + /* Append little-endian CRC32 and encrypt it to produce ICV */ crc = ~crc32_le(~0, pos, len); icv = skb_put(skb, 4); @@ -137,10 +137,16 @@ static int prism2_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv) icv[2] = crc >> 16; icv[3] = crc >> 24; - crypto_blkcipher_setkey(wep->tx_tfm, key, klen); + crypto_skcipher_setkey(wep->tx_tfm, key, klen); sg_init_one(&sg, pos, len+4); - return crypto_blkcipher_encrypt(&desc, &sg, &sg, len + 4); + skcipher_request_set_tfm(req, wep->tx_tfm); + skcipher_request_set_callback(req, 0, NULL, NULL); + skcipher_request_set_crypt(req, &sg, &sg, len + 4, NULL); + + err = crypto_skcipher_encrypt(req); + skcipher_request_zero(req); + return err; } return 0; @@ -161,10 +167,10 @@ static int prism2_wep_decrypt(struct sk_buff *skb, int hdr_len, void *priv) u8 key[WEP_KEY_LEN + 3]; u8 keyidx, *pos; cb_desc *tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); - struct blkcipher_desc desc = {.tfm = wep->rx_tfm}; u32 crc; u8 icv[4]; struct scatterlist sg; + int err; if (skb->len < hdr_len + 8) return -1; @@ -186,10 +192,18 @@ static int prism2_wep_decrypt(struct sk_buff *skb, int hdr_len, void *priv) plen = skb->len - hdr_len - 8; if (!tcb_desc->bHwSec) { - crypto_blkcipher_setkey(wep->rx_tfm, key, klen); + SKCIPHER_REQUEST_ON_STACK(req, wep->rx_tfm); + + crypto_skcipher_setkey(wep->rx_tfm, key, klen); sg_init_one(&sg, pos, plen+4); - if (crypto_blkcipher_decrypt(&desc, &sg, &sg, plen + 4)) + skcipher_request_set_tfm(req, wep->rx_tfm); + 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) return -7; crc = ~crc32_le(~0, pos, plen);