From patchwork Mon Aug 24 13:29:55 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ard Biesheuvel X-Patchwork-Id: 253130 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-14.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E4AC8C433E3 for ; Mon, 24 Aug 2020 13:30:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BE38820706 for ; Mon, 24 Aug 2020 13:30:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598275825; bh=UJTBd0a2fi/+qhVzH81t0+Pl9MK9T779XpCt2E3ZNWE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=DsIzR2540yEiIJBowTHy5hbuWxUrQIq2Q75W3w73y5YrwzZLZhmaali/cXzME8Sq5 p2qJsWiEPXlcwC8kUbxIRIS4BxazeoKkHJItoq0zRh+Duuq7Nt2UgPtj9dT5Vo8zSo qn4tTJRo8H9P5uDtMgPfkrzOANXa3L8ugoc6qn5E= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726823AbgHXNaY (ORCPT ); Mon, 24 Aug 2020 09:30:24 -0400 Received: from mail.kernel.org ([198.145.29.99]:54586 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726786AbgHXNaW (ORCPT ); Mon, 24 Aug 2020 09:30:22 -0400 Received: from e123331-lin.arnhem.chello.nl (dhcp-077-251-017-237.chello.nl [77.251.17.237]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 8A7D121741; Mon, 24 Aug 2020 13:30:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598275819; bh=UJTBd0a2fi/+qhVzH81t0+Pl9MK9T779XpCt2E3ZNWE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hbpzoL7s94MlSumU3NwtJOekxZDImGmSPQktelThyOvYL7ErY9UBSJd+iVDHUyZKU KZHSzp+9Ec/df5KELyRdmI40roHxEBgI6wkkJyNkzEnFsxe8/5ldQSmoj9ym0+PsBV cq/bzbuMku58QmnBNOFopa5A4r6q8cEhjHvWjQG4= From: Ard Biesheuvel To: linux-crypto@vger.kernel.org Cc: Ard Biesheuvel , Herbert Xu , "David S. Miller" , Greg Kroah-Hartman , Trond Myklebust , Anna Schumaker , "J. Bruce Fields" , Chuck Lever , Eric Biggers , Arnd Bergmann , netdev@vger.kernel.org, devel@driverdev.osuosl.org, linux-nfs@vger.kernel.org Subject: [PATCH v2 1/7] staging/rtl8192e: switch to RC4 library interface Date: Mon, 24 Aug 2020 15:29:55 +0200 Message-Id: <20200824133001.9546-2-ardb@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200824133001.9546-1-ardb@kernel.org> References: <20200824133001.9546-1-ardb@kernel.org> Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org Switch to the ARC4 library interface, to remove the pointless dependency on the skcipher API, from which we will hopefully be able to drop ecb(arc4) skcipher support. Signed-off-by: Ard Biesheuvel Acked-by: Greg Kroah-Hartman --- drivers/staging/rtl8192e/Kconfig | 4 +- drivers/staging/rtl8192e/rtllib_crypt_tkip.c | 70 ++++--------------- drivers/staging/rtl8192e/rtllib_crypt_wep.c | 72 ++++---------------- 3 files changed, 28 insertions(+), 118 deletions(-) diff --git a/drivers/staging/rtl8192e/Kconfig b/drivers/staging/rtl8192e/Kconfig index 1007eea6c8fc..4c440bdaaf6e 100644 --- a/drivers/staging/rtl8192e/Kconfig +++ b/drivers/staging/rtl8192e/Kconfig @@ -25,7 +25,7 @@ config RTLLIB_CRYPTO_CCMP config RTLLIB_CRYPTO_TKIP tristate "Support for rtllib TKIP crypto" depends on RTLLIB - select CRYPTO_ARC4 + select CRYPTO_LIB_ARC4 select CRYPTO_MICHAEL_MIC default y help @@ -35,7 +35,7 @@ config RTLLIB_CRYPTO_TKIP config RTLLIB_CRYPTO_WEP tristate "Support for rtllib WEP crypto" - select CRYPTO_ARC4 + select CRYPTO_LIB_ARC4 depends on RTLLIB default y help diff --git a/drivers/staging/rtl8192e/rtllib_crypt_tkip.c b/drivers/staging/rtl8192e/rtllib_crypt_tkip.c index 8d2a58e706d5..8c2ff37b2d3a 100644 --- a/drivers/staging/rtl8192e/rtllib_crypt_tkip.c +++ b/drivers/staging/rtl8192e/rtllib_crypt_tkip.c @@ -5,8 +5,9 @@ * Copyright (c) 2003-2004, Jouni Malinen */ +#include #include -#include +#include #include #include #include @@ -16,7 +17,6 @@ #include #include #include -#include #include #include @@ -45,9 +45,9 @@ struct rtllib_tkip_data { u32 dot11RSNAStatsTKIPLocalMICFailures; int key_idx; - struct crypto_sync_skcipher *rx_tfm_arc4; + struct arc4_ctx rx_ctx_arc4; + struct arc4_ctx tx_ctx_arc4; struct crypto_shash *rx_tfm_michael; - struct crypto_sync_skcipher *tx_tfm_arc4; struct crypto_shash *tx_tfm_michael; /* scratch buffers for virt_to_page() (crypto API) */ u8 rx_hdr[16]; @@ -58,16 +58,13 @@ static void *rtllib_tkip_init(int key_idx) { struct rtllib_tkip_data *priv; + if (fips_enabled) + return NULL; + priv = kzalloc(sizeof(*priv), GFP_ATOMIC); if (priv == NULL) goto fail; priv->key_idx = key_idx; - priv->tx_tfm_arc4 = crypto_alloc_sync_skcipher("ecb(arc4)", 0, 0); - 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_shash("michael_mic", 0, 0); if (IS_ERR(priv->tx_tfm_michael)) { @@ -76,13 +73,6 @@ static void *rtllib_tkip_init(int key_idx) goto fail; } - priv->rx_tfm_arc4 = crypto_alloc_sync_skcipher("ecb(arc4)", 0, 0); - 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_shash("michael_mic", 0, 0); if (IS_ERR(priv->rx_tfm_michael)) { pr_debug("Could not allocate crypto API michael_mic\n"); @@ -94,9 +84,7 @@ static void *rtllib_tkip_init(int key_idx) fail: if (priv) { crypto_free_shash(priv->tx_tfm_michael); - crypto_free_sync_skcipher(priv->tx_tfm_arc4); crypto_free_shash(priv->rx_tfm_michael); - crypto_free_sync_skcipher(priv->rx_tfm_arc4); kfree(priv); } @@ -110,11 +98,9 @@ static void rtllib_tkip_deinit(void *priv) if (_priv) { crypto_free_shash(_priv->tx_tfm_michael); - crypto_free_sync_skcipher(_priv->tx_tfm_arc4); crypto_free_shash(_priv->rx_tfm_michael); - crypto_free_sync_skcipher(_priv->rx_tfm_arc4); } - kfree(priv); + kzfree(priv); } @@ -289,7 +275,6 @@ static int rtllib_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv) int ret = 0; u8 rc4key[16], *icv; u32 crc; - struct scatterlist sg; if (skb_headroom(skb) < 8 || skb_tailroom(skb) < 4 || skb->len < hdr_len) @@ -331,8 +316,6 @@ static int rtllib_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv) *pos++ = (tkey->tx_iv32 >> 24) & 0xff; if (!tcb_desc->bHwSec) { - SYNC_SKCIPHER_REQUEST_ON_STACK(req, tkey->tx_tfm_arc4); - icv = skb_put(skb, 4); crc = ~crc32_le(~0, pos, len); icv[0] = crc; @@ -340,15 +323,8 @@ static int rtllib_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv) icv[2] = crc >> 16; icv[3] = crc >> 24; - sg_init_one(&sg, pos, len+4); - - - crypto_sync_skcipher_setkey(tkey->tx_tfm_arc4, rc4key, 16); - skcipher_request_set_sync_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); + arc4_setkey(&tkey->tx_ctx_arc4, rc4key, 16); + arc4_crypt(&tkey->tx_ctx_arc4, pos, pos, len + 4); } tkey->tx_iv16++; @@ -376,9 +352,7 @@ static int rtllib_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv) u8 rc4key[16]; u8 icv[4]; u32 crc; - struct scatterlist sg; int plen; - int err; if (skb->len < hdr_len + 8 + 4) return -1; @@ -414,8 +388,6 @@ static int rtllib_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv) pos += 8; if (!tcb_desc->bHwSec || (skb->cb[0] == 1)) { - SYNC_SKCIPHER_REQUEST_ON_STACK(req, tkey->rx_tfm_arc4); - if ((iv32 < tkey->rx_iv32 || (iv32 == tkey->rx_iv32 && iv16 <= tkey->rx_iv16)) && tkey->initialized) { @@ -439,22 +411,8 @@ static int rtllib_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv) plen = skb->len - hdr_len - 12; - sg_init_one(&sg, pos, plen+4); - - crypto_sync_skcipher_setkey(tkey->rx_tfm_arc4, rc4key, 16); - skcipher_request_set_sync_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", - hdr->addr2); - } - return -7; - } + arc4_setkey(&tkey->rx_ctx_arc4, rc4key, 16); + arc4_crypt(&tkey->rx_ctx_arc4, pos, pos, plen + 4); crc = ~crc32_le(~0, pos, plen); icv[0] = crc; @@ -657,17 +615,13 @@ static int rtllib_tkip_set_key(void *key, int len, u8 *seq, void *priv) struct rtllib_tkip_data *tkey = priv; int keyidx; struct crypto_shash *tfm = tkey->tx_tfm_michael; - struct crypto_sync_skcipher *tfm2 = tkey->tx_tfm_arc4; struct crypto_shash *tfm3 = tkey->rx_tfm_michael; - struct crypto_sync_skcipher *tfm4 = tkey->rx_tfm_arc4; keyidx = tkey->key_idx; memset(tkey, 0, sizeof(*tkey)); tkey->key_idx = keyidx; tkey->tx_tfm_michael = tfm; - tkey->tx_tfm_arc4 = tfm2; tkey->rx_tfm_michael = tfm3; - tkey->rx_tfm_arc4 = tfm4; if (len == TKIP_KEY_LEN) { memcpy(tkey->key, key, TKIP_KEY_LEN); diff --git a/drivers/staging/rtl8192e/rtllib_crypt_wep.c b/drivers/staging/rtl8192e/rtllib_crypt_wep.c index b1ea650036d2..7cdd17f907fa 100644 --- a/drivers/staging/rtl8192e/rtllib_crypt_wep.c +++ b/drivers/staging/rtl8192e/rtllib_crypt_wep.c @@ -5,7 +5,8 @@ * Copyright (c) 2002-2004, Jouni Malinen */ -#include +#include +#include #include #include #include @@ -14,7 +15,6 @@ #include #include "rtllib.h" -#include #include struct prism2_wep_data { @@ -23,8 +23,8 @@ struct prism2_wep_data { u8 key[WEP_KEY_LEN + 1]; u8 key_len; u8 key_idx; - struct crypto_sync_skcipher *tx_tfm; - struct crypto_sync_skcipher *rx_tfm; + struct arc4_ctx rx_ctx_arc4; + struct arc4_ctx tx_ctx_arc4; }; @@ -32,48 +32,24 @@ static void *prism2_wep_init(int keyidx) { struct prism2_wep_data *priv; + if (fips_enabled) + return NULL; + priv = kzalloc(sizeof(*priv), GFP_ATOMIC); if (priv == NULL) - goto fail; + return NULL; priv->key_idx = keyidx; - priv->tx_tfm = crypto_alloc_sync_skcipher("ecb(arc4)", 0, 0); - if (IS_ERR(priv->tx_tfm)) { - pr_debug("rtllib_crypt_wep: could not allocate crypto API arc4\n"); - priv->tx_tfm = NULL; - goto fail; - } - priv->rx_tfm = crypto_alloc_sync_skcipher("ecb(arc4)", 0, 0); - if (IS_ERR(priv->rx_tfm)) { - pr_debug("rtllib_crypt_wep: could not allocate crypto API arc4\n"); - priv->rx_tfm = NULL; - goto fail; - } - /* start WEP IV from a random value */ get_random_bytes(&priv->iv, 4); return priv; - -fail: - if (priv) { - crypto_free_sync_skcipher(priv->tx_tfm); - crypto_free_sync_skcipher(priv->rx_tfm); - kfree(priv); - } - return NULL; } static void prism2_wep_deinit(void *priv) { - struct prism2_wep_data *_priv = priv; - - if (_priv) { - crypto_free_sync_skcipher(_priv->tx_tfm); - crypto_free_sync_skcipher(_priv->rx_tfm); - } - kfree(priv); + kzfree(priv); } /* Perform WEP encryption on given skb that has at least 4 bytes of headroom @@ -92,8 +68,6 @@ static int prism2_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv) MAX_DEV_ADDR_SIZE); u32 crc; u8 *icv; - struct scatterlist sg; - int err; if (skb_headroom(skb) < 4 || skb_tailroom(skb) < 4 || skb->len < hdr_len){ @@ -131,8 +105,6 @@ 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) { - SYNC_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); @@ -141,14 +113,8 @@ static int prism2_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv) icv[2] = crc >> 16; icv[3] = crc >> 24; - sg_init_one(&sg, pos, len+4); - crypto_sync_skcipher_setkey(wep->tx_tfm, key, klen); - skcipher_request_set_sync_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; + arc4_setkey(&wep->tx_ctx_arc4, key, klen); + arc4_crypt(&wep->tx_ctx_arc4, pos, pos, len + 4); } return 0; @@ -172,8 +138,6 @@ static int prism2_wep_decrypt(struct sk_buff *skb, int hdr_len, void *priv) MAX_DEV_ADDR_SIZE); u32 crc; u8 icv[4]; - struct scatterlist sg; - int err; if (skb->len < hdr_len + 8) return -1; @@ -195,17 +159,9 @@ static int prism2_wep_decrypt(struct sk_buff *skb, int hdr_len, void *priv) plen = skb->len - hdr_len - 8; if (!tcb_desc->bHwSec) { - SYNC_SKCIPHER_REQUEST_ON_STACK(req, wep->rx_tfm); - - sg_init_one(&sg, pos, plen+4); - crypto_sync_skcipher_setkey(wep->rx_tfm, key, klen); - skcipher_request_set_sync_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; + arc4_setkey(&wep->rx_ctx_arc4, key, klen); + arc4_crypt(&wep->rx_ctx_arc4, pos, pos, plen + 4); + crc = ~crc32_le(~0, pos, plen); icv[0] = crc; icv[1] = crc >> 8; From patchwork Mon Aug 24 13:29:56 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ard Biesheuvel X-Patchwork-Id: 253129 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-14.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7D00AC433DF for ; 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Mon, 24 Aug 2020 13:30:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598275824; bh=I+nZjL8YLhriJEshT2sK1WcPkHtplmrqsHD42vsuAMM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZmXARzSMSqLTWx68KVxJQhFOmbE19utXMdFBlS0jcYnR0tfakdxz27WkImcU4qdk5 KouPT+EcecEvJXKIQMWoKEwGiLVA3+Xd5SWaz0XVorghabs4qxyxzgEeR2qbjHYR32 juGcFzmasNyehm5Ai3KRvNy0tGZyDrwBEfVx7QBU= From: Ard Biesheuvel To: linux-crypto@vger.kernel.org Cc: Ard Biesheuvel , Herbert Xu , "David S. Miller" , Greg Kroah-Hartman , Trond Myklebust , Anna Schumaker , "J. Bruce Fields" , Chuck Lever , Eric Biggers , Arnd Bergmann , netdev@vger.kernel.org, devel@driverdev.osuosl.org, linux-nfs@vger.kernel.org Subject: [PATCH v2 2/7] staging/rtl8192u: switch to RC4 library interface Date: Mon, 24 Aug 2020 15:29:56 +0200 Message-Id: <20200824133001.9546-3-ardb@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200824133001.9546-1-ardb@kernel.org> References: <20200824133001.9546-1-ardb@kernel.org> Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org Switch to the ARC4 library interface, to remove the pointless dependency on the skcipher API, from which we will hopefully be able to drop ecb(arc4) skcipher support. Signed-off-by: Ard Biesheuvel Acked-by: Greg Kroah-Hartman --- drivers/staging/rtl8192u/Kconfig | 1 + drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_tkip.c | 81 ++++---------------- drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_wep.c | 64 +++------------- 3 files changed, 27 insertions(+), 119 deletions(-) diff --git a/drivers/staging/rtl8192u/Kconfig b/drivers/staging/rtl8192u/Kconfig index 1edca5c304fb..ef883d462d3d 100644 --- a/drivers/staging/rtl8192u/Kconfig +++ b/drivers/staging/rtl8192u/Kconfig @@ -8,3 +8,4 @@ config RTL8192U select CRYPTO select CRYPTO_AES select CRYPTO_CCM + select CRYPTO_LIB_ARC4 diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_tkip.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_tkip.c index ffe624ed0c0c..4b415cc76715 100644 --- a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_tkip.c +++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_tkip.c @@ -5,6 +5,7 @@ * Copyright (c) 2003-2004, Jouni Malinen */ +#include #include #include #include @@ -17,9 +18,8 @@ #include "ieee80211.h" +#include #include -#include - #include #include MODULE_AUTHOR("Jouni Malinen"); @@ -49,9 +49,9 @@ struct ieee80211_tkip_data { int key_idx; - struct crypto_sync_skcipher *rx_tfm_arc4; + struct arc4_ctx rx_ctx_arc4; + struct arc4_ctx tx_ctx_arc4; struct crypto_shash *rx_tfm_michael; - struct crypto_sync_skcipher *tx_tfm_arc4; struct crypto_shash *tx_tfm_michael; /* scratch buffers for virt_to_page() (crypto API) */ @@ -62,19 +62,14 @@ static void *ieee80211_tkip_init(int key_idx) { struct ieee80211_tkip_data *priv; + if (fips_enabled) + return NULL; + priv = kzalloc(sizeof(*priv), GFP_KERNEL); if (!priv) goto fail; priv->key_idx = key_idx; - priv->tx_tfm_arc4 = crypto_alloc_sync_skcipher("ecb(arc4)", 0, 0); - if (IS_ERR(priv->tx_tfm_arc4)) { - printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate " - "crypto API arc4\n"); - priv->tx_tfm_arc4 = NULL; - goto fail; - } - priv->tx_tfm_michael = crypto_alloc_shash("michael_mic", 0, 0); if (IS_ERR(priv->tx_tfm_michael)) { printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate " @@ -83,14 +78,6 @@ static void *ieee80211_tkip_init(int key_idx) goto fail; } - priv->rx_tfm_arc4 = crypto_alloc_sync_skcipher("ecb(arc4)", 0, 0); - if (IS_ERR(priv->rx_tfm_arc4)) { - printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate " - "crypto API arc4\n"); - priv->rx_tfm_arc4 = NULL; - goto fail; - } - priv->rx_tfm_michael = crypto_alloc_shash("michael_mic", 0, 0); if (IS_ERR(priv->rx_tfm_michael)) { printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate " @@ -104,9 +91,7 @@ static void *ieee80211_tkip_init(int key_idx) fail: if (priv) { crypto_free_shash(priv->tx_tfm_michael); - crypto_free_sync_skcipher(priv->tx_tfm_arc4); crypto_free_shash(priv->rx_tfm_michael); - crypto_free_sync_skcipher(priv->rx_tfm_arc4); kfree(priv); } @@ -120,11 +105,9 @@ static void ieee80211_tkip_deinit(void *priv) if (_priv) { crypto_free_shash(_priv->tx_tfm_michael); - crypto_free_sync_skcipher(_priv->tx_tfm_arc4); crypto_free_shash(_priv->rx_tfm_michael); - crypto_free_sync_skcipher(_priv->rx_tfm_arc4); } - kfree(priv); + kzfree(priv); } @@ -290,10 +273,8 @@ static int ieee80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv) u8 *pos; struct rtl_80211_hdr_4addr *hdr; struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); - int ret = 0; u8 rc4key[16], *icv; u32 crc; - struct scatterlist sg; if (skb_headroom(skb) < 8 || skb_tailroom(skb) < 4 || skb->len < hdr_len) @@ -334,21 +315,15 @@ static int ieee80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv) *pos++ = (tkey->tx_iv32 >> 24) & 0xff; if (!tcb_desc->bHwSec) { - SYNC_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_sync_skcipher_setkey(tkey->tx_tfm_arc4, rc4key, 16); - sg_init_one(&sg, pos, len + 4); - skcipher_request_set_sync_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); + + arc4_setkey(&tkey->tx_ctx_arc4, rc4key, 16); + arc4_crypt(&tkey->tx_ctx_arc4, pos, pos, len + 4); } tkey->tx_iv16++; @@ -357,12 +332,7 @@ static int ieee80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv) tkey->tx_iv32++; } - if (!tcb_desc->bHwSec) - return ret; - else - return 0; - - + return 0; } static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv) @@ -376,9 +346,7 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv) u8 rc4key[16]; u8 icv[4]; u32 crc; - struct scatterlist sg; int plen; - int err; if (skb->len < hdr_len + 8 + 4) return -1; @@ -412,8 +380,6 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv) pos += 8; if (!tcb_desc->bHwSec) { - SYNC_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()) { @@ -434,23 +400,8 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv) plen = skb->len - hdr_len - 12; - crypto_sync_skcipher_setkey(tkey->rx_tfm_arc4, rc4key, 16); - sg_init_one(&sg, pos, plen + 4); - - skcipher_request_set_sync_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, "TKIP: failed to decrypt " - "received packet from %pM\n", - hdr->addr2); - } - return -7; - } + arc4_setkey(&tkey->rx_ctx_arc4, rc4key, 16); + arc4_crypt(&tkey->rx_ctx_arc4, pos, pos, plen + 4); crc = ~crc32_le(~0, pos, plen); icv[0] = crc; @@ -655,17 +606,13 @@ static int ieee80211_tkip_set_key(void *key, int len, u8 *seq, void *priv) struct ieee80211_tkip_data *tkey = priv; int keyidx; struct crypto_shash *tfm = tkey->tx_tfm_michael; - struct crypto_sync_skcipher *tfm2 = tkey->tx_tfm_arc4; struct crypto_shash *tfm3 = tkey->rx_tfm_michael; - struct crypto_sync_skcipher *tfm4 = tkey->rx_tfm_arc4; keyidx = tkey->key_idx; memset(tkey, 0, sizeof(*tkey)); tkey->key_idx = keyidx; tkey->tx_tfm_michael = tfm; - tkey->tx_tfm_arc4 = tfm2; tkey->rx_tfm_michael = tfm3; - tkey->rx_tfm_arc4 = tfm4; if (len == TKIP_KEY_LEN) { memcpy(tkey->key, key, TKIP_KEY_LEN); diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_wep.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_wep.c index 26482c3dcd1c..1c56e2d03aae 100644 --- a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_wep.c +++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_wep.c @@ -5,6 +5,7 @@ * Copyright (c) 2002-2004, Jouni Malinen */ +#include #include #include #include @@ -14,8 +15,7 @@ #include "ieee80211.h" -#include -#include +#include #include MODULE_AUTHOR("Jouni Malinen"); @@ -28,8 +28,8 @@ struct prism2_wep_data { u8 key[WEP_KEY_LEN + 1]; u8 key_len; u8 key_idx; - struct crypto_sync_skcipher *tx_tfm; - struct crypto_sync_skcipher *rx_tfm; + struct arc4_ctx rx_ctx_arc4; + struct arc4_ctx tx_ctx_arc4; }; @@ -37,39 +37,24 @@ static void *prism2_wep_init(int keyidx) { struct prism2_wep_data *priv; + if (fips_enabled) + return NULL; + priv = kzalloc(sizeof(*priv), GFP_KERNEL); if (!priv) return NULL; priv->key_idx = keyidx; - priv->tx_tfm = crypto_alloc_sync_skcipher("ecb(arc4)", 0, 0); - if (IS_ERR(priv->tx_tfm)) - goto free_priv; - priv->rx_tfm = crypto_alloc_sync_skcipher("ecb(arc4)", 0, 0); - if (IS_ERR(priv->rx_tfm)) - goto free_tx; - /* start WEP IV from a random value */ get_random_bytes(&priv->iv, 4); return priv; -free_tx: - crypto_free_sync_skcipher(priv->tx_tfm); -free_priv: - kfree(priv); - return NULL; } static void prism2_wep_deinit(void *priv) { - struct prism2_wep_data *_priv = priv; - - if (_priv) { - crypto_free_sync_skcipher(_priv->tx_tfm); - crypto_free_sync_skcipher(_priv->rx_tfm); - } - kfree(priv); + kzfree(priv); } /* Perform WEP encryption on given skb that has at least 4 bytes of headroom @@ -87,8 +72,6 @@ static int prism2_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv) struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); u32 crc; u8 *icv; - struct scatterlist sg; - int err; if (skb_headroom(skb) < 4 || skb_tailroom(skb) < 4 || skb->len < hdr_len) @@ -124,8 +107,6 @@ 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) { - SYNC_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); @@ -134,16 +115,8 @@ static int prism2_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv) icv[2] = crc >> 16; icv[3] = crc >> 24; - crypto_sync_skcipher_setkey(wep->tx_tfm, key, klen); - sg_init_one(&sg, pos, len + 4); - - skcipher_request_set_sync_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; + arc4_setkey(&wep->tx_ctx_arc4, key, klen); + arc4_crypt(&wep->tx_ctx_arc4, pos, pos, len + 4); } return 0; @@ -166,8 +139,6 @@ static int prism2_wep_decrypt(struct sk_buff *skb, int hdr_len, void *priv) struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); u32 crc; u8 icv[4]; - struct scatterlist sg; - int err; if (skb->len < hdr_len + 8) return -1; @@ -189,19 +160,8 @@ static int prism2_wep_decrypt(struct sk_buff *skb, int hdr_len, void *priv) plen = skb->len - hdr_len - 8; if (!tcb_desc->bHwSec) { - SYNC_SKCIPHER_REQUEST_ON_STACK(req, wep->rx_tfm); - - crypto_sync_skcipher_setkey(wep->rx_tfm, key, klen); - sg_init_one(&sg, pos, plen + 4); - - skcipher_request_set_sync_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; + arc4_setkey(&wep->rx_ctx_arc4, key, klen); + arc4_crypt(&wep->rx_ctx_arc4, pos, pos, plen + 4); crc = ~crc32_le(~0, pos, plen); icv[0] = crc; From patchwork Mon Aug 24 13:29:59 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ard Biesheuvel X-Patchwork-Id: 253127 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-14.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D3070C433DF for ; Mon, 24 Aug 2020 13:42:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A42012065F for ; Mon, 24 Aug 2020 13:42:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598276566; bh=e0P1kF3B2HlFgtlQzzMfqOke3yY9TEoFSA2McbClWM4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=f190bI9/nW7rPxjJbkCg5xqVhTe9PGRap5gqKJskJ2wxMuJNjrVku8e0AVqO+0ZGv GfytVD3MSum9XSqENoAL3w3AVUzNCjsvdeXgBbqTaU1bV28QCNupNrXIYtzKfFO3qG Xpw2U9b3fJCwjzG34UgxELRHEPGB6FIIf7uipiM4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727945AbgHXNm2 (ORCPT ); Mon, 24 Aug 2020 09:42:28 -0400 Received: from mail.kernel.org ([198.145.29.99]:57284 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727091AbgHXNcL (ORCPT ); Mon, 24 Aug 2020 09:32:11 -0400 Received: from e123331-lin.arnhem.chello.nl (dhcp-077-251-017-237.chello.nl [77.251.17.237]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id BB237206B5; Mon, 24 Aug 2020 13:30:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598275896; bh=e0P1kF3B2HlFgtlQzzMfqOke3yY9TEoFSA2McbClWM4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=wVJsPm2fRcA0bd2YaOjFRXcECn7TAtyy47xhsVGMCn5fv5N6mW5dd01/kOASpHpeJ nA3qulYl5JXmmT+FIqvwElXBVdA7SQ66vLZ8hScgNlKOdHSd4Y20/GLbKL+qTfj2Jd jNoBNCm2dAFx9xuYRDfmpBP9BjKnxjrdboTJInOI= From: Ard Biesheuvel To: linux-crypto@vger.kernel.org Cc: Ard Biesheuvel , Herbert Xu , "David S. Miller" , Greg Kroah-Hartman , Trond Myklebust , Anna Schumaker , "J. Bruce Fields" , Chuck Lever , Eric Biggers , Arnd Bergmann , netdev@vger.kernel.org, devel@driverdev.osuosl.org, linux-nfs@vger.kernel.org Subject: [PATCH v2 5/7] crypto: bcm-iproc - remove ecb(arc4) support Date: Mon, 24 Aug 2020 15:29:59 +0200 Message-Id: <20200824133001.9546-6-ardb@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200824133001.9546-1-ardb@kernel.org> References: <20200824133001.9546-1-ardb@kernel.org> Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org Signed-off-by: Ard Biesheuvel --- drivers/crypto/bcm/cipher.c | 96 +------------------- drivers/crypto/bcm/cipher.h | 1 - drivers/crypto/bcm/spu.c | 23 +---- drivers/crypto/bcm/spu.h | 1 - drivers/crypto/bcm/spu2.c | 12 +-- drivers/crypto/bcm/spu2.h | 1 - 6 files changed, 6 insertions(+), 128 deletions(-) diff --git a/drivers/crypto/bcm/cipher.c b/drivers/crypto/bcm/cipher.c index 8a7fa1ae1ade..5d38b87b9d77 100644 --- a/drivers/crypto/bcm/cipher.c +++ b/drivers/crypto/bcm/cipher.c @@ -165,10 +165,6 @@ spu_skcipher_rx_sg_create(struct brcm_message *mssg, return -EFAULT; } - if (ctx->cipher.alg == CIPHER_ALG_RC4) - /* Add buffer to catch 260-byte SUPDT field for RC4 */ - sg_set_buf(sg++, rctx->msg_buf.c.supdt_tweak, SPU_SUPDT_LEN); - if (stat_pad_len) sg_set_buf(sg++, rctx->msg_buf.rx_stat_pad, stat_pad_len); @@ -317,7 +313,6 @@ static int handle_skcipher_req(struct iproc_reqctx_s *rctx) u8 local_iv_ctr[MAX_IV_SIZE]; u32 stat_pad_len; /* num bytes to align status field */ u32 pad_len; /* total length of all padding */ - bool update_key = false; struct brcm_message *mssg; /* mailbox message */ /* number of entries in src and dst sg in mailbox message. */ @@ -391,28 +386,6 @@ static int handle_skcipher_req(struct iproc_reqctx_s *rctx) } } - if (ctx->cipher.alg == CIPHER_ALG_RC4) { - rx_frag_num++; - if (chunk_start) { - /* - * for non-first RC4 chunks, use SUPDT from previous - * response as key for this chunk. - */ - cipher_parms.key_buf = rctx->msg_buf.c.supdt_tweak; - update_key = true; - cipher_parms.type = CIPHER_TYPE_UPDT; - } else if (!rctx->is_encrypt) { - /* - * First RC4 chunk. For decrypt, key in pre-built msg - * header may have been changed if encrypt required - * multiple chunks. So revert the key to the - * ctx->enckey value. - */ - update_key = true; - cipher_parms.type = CIPHER_TYPE_INIT; - } - } - if (ctx->max_payload == SPU_MAX_PAYLOAD_INF) flow_log("max_payload infinite\n"); else @@ -425,14 +398,9 @@ static int handle_skcipher_req(struct iproc_reqctx_s *rctx) memcpy(rctx->msg_buf.bcm_spu_req_hdr, ctx->bcm_spu_req_hdr, sizeof(rctx->msg_buf.bcm_spu_req_hdr)); - /* - * Pass SUPDT field as key. Key field in finish() call is only used - * when update_key has been set above for RC4. Will be ignored in - * all other cases. - */ spu->spu_cipher_req_finish(rctx->msg_buf.bcm_spu_req_hdr + BCM_HDR_LEN, ctx->spu_req_hdr_len, !(rctx->is_encrypt), - &cipher_parms, update_key, chunksize); + &cipher_parms, chunksize); atomic64_add(chunksize, &iproc_priv.bytes_out); @@ -527,9 +495,6 @@ static void handle_skcipher_resp(struct iproc_reqctx_s *rctx) __func__, rctx->total_received, payload_len); dump_sg(req->dst, rctx->total_received, payload_len); - if (ctx->cipher.alg == CIPHER_ALG_RC4) - packet_dump(" supdt ", rctx->msg_buf.c.supdt_tweak, - SPU_SUPDT_LEN); rctx->total_received += payload_len; if (rctx->total_received == rctx->total_todo) { @@ -1853,26 +1818,6 @@ static int aes_setkey(struct crypto_skcipher *cipher, const u8 *key, return 0; } -static int rc4_setkey(struct crypto_skcipher *cipher, const u8 *key, - unsigned int keylen) -{ - struct iproc_ctx_s *ctx = crypto_skcipher_ctx(cipher); - int i; - - ctx->enckeylen = ARC4_MAX_KEY_SIZE + ARC4_STATE_SIZE; - - ctx->enckey[0] = 0x00; /* 0x00 */ - ctx->enckey[1] = 0x00; /* i */ - ctx->enckey[2] = 0x00; /* 0x00 */ - ctx->enckey[3] = 0x00; /* j */ - for (i = 0; i < ARC4_MAX_KEY_SIZE; i++) - ctx->enckey[i + ARC4_STATE_SIZE] = key[i % keylen]; - - ctx->cipher_type = CIPHER_TYPE_INIT; - - return 0; -} - static int skcipher_setkey(struct crypto_skcipher *cipher, const u8 *key, unsigned int keylen) { @@ -1895,9 +1840,6 @@ static int skcipher_setkey(struct crypto_skcipher *cipher, const u8 *key, case CIPHER_ALG_AES: err = aes_setkey(cipher, key, keylen); break; - case CIPHER_ALG_RC4: - err = rc4_setkey(cipher, key, keylen); - break; default: pr_err("%s() Error: unknown cipher alg\n", __func__); err = -EINVAL; @@ -1905,11 +1847,9 @@ static int skcipher_setkey(struct crypto_skcipher *cipher, const u8 *key, if (err) return err; - /* RC4 already populated ctx->enkey */ - if (ctx->cipher.alg != CIPHER_ALG_RC4) { - memcpy(ctx->enckey, key, keylen); - ctx->enckeylen = keylen; - } + memcpy(ctx->enckey, key, keylen); + ctx->enckeylen = keylen; + /* SPU needs XTS keys in the reverse order the crypto API presents */ if ((ctx->cipher.alg == CIPHER_ALG_AES) && (ctx->cipher.mode == CIPHER_MODE_XTS)) { @@ -2872,9 +2812,6 @@ static int aead_authenc_setkey(struct crypto_aead *cipher, goto badkey; } break; - case CIPHER_ALG_RC4: - ctx->cipher_type = CIPHER_TYPE_INIT; - break; default: pr_err("%s() Error: Unknown cipher alg\n", __func__); return -EINVAL; @@ -3603,25 +3540,6 @@ static struct iproc_alg_s driver_algs[] = { }, /* SKCIPHER algorithms. */ - { - .type = CRYPTO_ALG_TYPE_SKCIPHER, - .alg.skcipher = { - .base.cra_name = "ecb(arc4)", - .base.cra_driver_name = "ecb-arc4-iproc", - .base.cra_blocksize = ARC4_BLOCK_SIZE, - .min_keysize = ARC4_MIN_KEY_SIZE, - .max_keysize = ARC4_MAX_KEY_SIZE, - .ivsize = 0, - }, - .cipher_info = { - .alg = CIPHER_ALG_RC4, - .mode = CIPHER_MODE_NONE, - }, - .auth_info = { - .alg = HASH_ALG_NONE, - .mode = HASH_MODE_NONE, - }, - }, { .type = CRYPTO_ALG_TYPE_SKCIPHER, .alg.skcipher = { @@ -4526,15 +4444,9 @@ static void spu_counters_init(void) static int spu_register_skcipher(struct iproc_alg_s *driver_alg) { - struct spu_hw *spu = &iproc_priv.spu; struct skcipher_alg *crypto = &driver_alg->alg.skcipher; int err; - /* SPU2 does not support RC4 */ - if ((driver_alg->cipher_info.alg == CIPHER_ALG_RC4) && - (spu->spu_type == SPU_TYPE_SPU2)) - return 0; - crypto->base.cra_module = THIS_MODULE; crypto->base.cra_priority = cipher_pri; crypto->base.cra_alignmask = 0; diff --git a/drivers/crypto/bcm/cipher.h b/drivers/crypto/bcm/cipher.h index b6d83e3aa46c..035c8389cb3d 100644 --- a/drivers/crypto/bcm/cipher.h +++ b/drivers/crypto/bcm/cipher.h @@ -388,7 +388,6 @@ struct spu_hw { u16 spu_req_hdr_len, unsigned int is_inbound, struct spu_cipher_parms *cipher_parms, - bool update_key, unsigned int data_size); void (*spu_request_pad)(u8 *pad_start, u32 gcm_padding, u32 hash_pad_len, enum hash_alg auth_alg, diff --git a/drivers/crypto/bcm/spu.c b/drivers/crypto/bcm/spu.c index e7562e9bf396..fe126f95c702 100644 --- a/drivers/crypto/bcm/spu.c +++ b/drivers/crypto/bcm/spu.c @@ -222,10 +222,6 @@ void spum_dump_msg_hdr(u8 *buf, unsigned int buf_len) cipher_key_len = 24; name = "3DES"; break; - case CIPHER_ALG_RC4: - cipher_key_len = 260; - name = "ARC4"; - break; case CIPHER_ALG_AES: switch (cipher_type) { case CIPHER_TYPE_AES128: @@ -919,21 +915,16 @@ u16 spum_cipher_req_init(u8 *spu_hdr, struct spu_cipher_parms *cipher_parms) * @spu_req_hdr_len: Length in bytes of the SPU request header * @isInbound: 0 encrypt, 1 decrypt * @cipher_parms: Parameters describing cipher operation to be performed - * @update_key: If true, rewrite the cipher key in SCTX * @data_size: Length of the data in the BD field * * Assumes much of the header was already filled in at setkey() time in * spum_cipher_req_init(). - * spum_cipher_req_init() fills in the encryption key. For RC4, when submitting - * a request for a non-first chunk, we use the 260-byte SUPDT field from the - * previous response as the key. update_key is true for this case. Unused in all - * other cases. + * spum_cipher_req_init() fills in the encryption key. */ void spum_cipher_req_finish(u8 *spu_hdr, u16 spu_req_hdr_len, unsigned int is_inbound, struct spu_cipher_parms *cipher_parms, - bool update_key, unsigned int data_size) { struct SPUHEADER *spuh; @@ -948,11 +939,6 @@ void spum_cipher_req_finish(u8 *spu_hdr, flow_log(" in: %u\n", is_inbound); flow_log(" cipher alg: %u, cipher_type: %u\n", cipher_parms->alg, cipher_parms->type); - if (update_key) { - flow_log(" cipher key len: %u\n", cipher_parms->key_len); - flow_dump(" key: ", cipher_parms->key_buf, - cipher_parms->key_len); - } /* * In XTS mode, API puts "i" parameter (block tweak) in IV. For @@ -981,13 +967,6 @@ void spum_cipher_req_finish(u8 *spu_hdr, else cipher_bits &= ~CIPHER_INBOUND; - /* update encryption key for RC4 on non-first chunk */ - if (update_key) { - spuh->sa.cipher_flags |= - cipher_parms->type << CIPHER_TYPE_SHIFT; - memcpy(spuh + 1, cipher_parms->key_buf, cipher_parms->key_len); - } - if (cipher_parms->alg && cipher_parms->iv_buf && cipher_parms->iv_len) /* cipher iv provided so put it in here */ memcpy(bdesc_ptr - cipher_parms->iv_len, cipher_parms->iv_buf, diff --git a/drivers/crypto/bcm/spu.h b/drivers/crypto/bcm/spu.h index b247bc5b9354..dd132389bcaa 100644 --- a/drivers/crypto/bcm/spu.h +++ b/drivers/crypto/bcm/spu.h @@ -251,7 +251,6 @@ void spum_cipher_req_finish(u8 *spu_hdr, u16 spu_req_hdr_len, unsigned int is_inbound, struct spu_cipher_parms *cipher_parms, - bool update_key, unsigned int data_size); void spum_request_pad(u8 *pad_start, diff --git a/drivers/crypto/bcm/spu2.c b/drivers/crypto/bcm/spu2.c index 59abb5ecefa4..c860ffb0b4c3 100644 --- a/drivers/crypto/bcm/spu2.c +++ b/drivers/crypto/bcm/spu2.c @@ -1170,21 +1170,16 @@ u16 spu2_cipher_req_init(u8 *spu_hdr, struct spu_cipher_parms *cipher_parms) * @spu_req_hdr_len: Length in bytes of the SPU request header * @isInbound: 0 encrypt, 1 decrypt * @cipher_parms: Parameters describing cipher operation to be performed - * @update_key: If true, rewrite the cipher key in SCTX * @data_size: Length of the data in the BD field * * Assumes much of the header was already filled in at setkey() time in * spu_cipher_req_init(). - * spu_cipher_req_init() fills in the encryption key. For RC4, when submitting a - * request for a non-first chunk, we use the 260-byte SUPDT field from the - * previous response as the key. update_key is true for this case. Unused in all - * other cases. + * spu_cipher_req_init() fills in the encryption key. */ void spu2_cipher_req_finish(u8 *spu_hdr, u16 spu_req_hdr_len, unsigned int is_inbound, struct spu_cipher_parms *cipher_parms, - bool update_key, unsigned int data_size) { struct SPU2_FMD *fmd; @@ -1196,11 +1191,6 @@ void spu2_cipher_req_finish(u8 *spu_hdr, flow_log(" in: %u\n", is_inbound); flow_log(" cipher alg: %u, cipher_type: %u\n", cipher_parms->alg, cipher_parms->type); - if (update_key) { - flow_log(" cipher key len: %u\n", cipher_parms->key_len); - flow_dump(" key: ", cipher_parms->key_buf, - cipher_parms->key_len); - } flow_log(" iv len: %d\n", cipher_parms->iv_len); flow_dump(" iv: ", cipher_parms->iv_buf, cipher_parms->iv_len); flow_log(" data_size: %u\n", data_size); diff --git a/drivers/crypto/bcm/spu2.h b/drivers/crypto/bcm/spu2.h index 03af6c38df7f..6e666bfb3cfc 100644 --- a/drivers/crypto/bcm/spu2.h +++ b/drivers/crypto/bcm/spu2.h @@ -200,7 +200,6 @@ void spu2_cipher_req_finish(u8 *spu_hdr, u16 spu_req_hdr_len, unsigned int is_inbound, struct spu_cipher_parms *cipher_parms, - bool update_key, unsigned int data_size); void spu2_request_pad(u8 *pad_start, u32 gcm_padding, u32 hash_pad_len, enum hash_alg auth_alg, enum hash_mode auth_mode, From patchwork Mon Aug 24 13:30:00 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ard Biesheuvel X-Patchwork-Id: 253128 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-14.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D54D7C433E1 for ; Mon, 24 Aug 2020 13:32:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B146A2224D for ; Mon, 24 Aug 2020 13:32:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598275956; bh=Bx4FY5JhoZLx8KTEBPX2ul2KmzV8P0l5/pk4TdwHBvo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=bA4FYJ8GUw8woC6Kn95eyuivBLFhFmsJrRz9uQq6PmE+1+hwwQZwXMctg7m7QMtbb AxqGk/6dRaiAF2V5vpiZan5BvM6zXC0pYuAsL9OYrvAC2rX47/vrclgrWTEMgHRFmK C8k8AEz22sZqCx2rz1tf02A09I1KwfBw1Er/zPA0= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726711AbgHXNcT (ORCPT ); Mon, 24 Aug 2020 09:32:19 -0400 Received: from mail.kernel.org ([198.145.29.99]:57476 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727103AbgHXNcK (ORCPT ); Mon, 24 Aug 2020 09:32:10 -0400 Received: from e123331-lin.arnhem.chello.nl (dhcp-077-251-017-237.chello.nl [77.251.17.237]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id D4B402063A; Mon, 24 Aug 2020 13:31:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598275902; bh=Bx4FY5JhoZLx8KTEBPX2ul2KmzV8P0l5/pk4TdwHBvo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=swpOUBQnwXfVSpgfjf783AtC+blFLcQCEv5H4023XLHcv12KYayIRZ2YnMNCYG2hP 2fSWvj4rn7FSIFY2gNBQ8b+BudKMKCWkWuEujwPxtEk7P2jIMPCi51ghsY//oNEOeR kySgKzMa9OtjZsRQVY56gZwNNa+G6Kgu52Z89cNw= From: Ard Biesheuvel To: linux-crypto@vger.kernel.org Cc: Ard Biesheuvel , Herbert Xu , "David S. Miller" , Greg Kroah-Hartman , Trond Myklebust , Anna Schumaker , "J. Bruce Fields" , Chuck Lever , Eric Biggers , Arnd Bergmann , netdev@vger.kernel.org, devel@driverdev.osuosl.org, linux-nfs@vger.kernel.org Subject: [PATCH v2 6/7] net: wireless: drop bogus CRYPTO_xxx Kconfig selects Date: Mon, 24 Aug 2020 15:30:00 +0200 Message-Id: <20200824133001.9546-7-ardb@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200824133001.9546-1-ardb@kernel.org> References: <20200824133001.9546-1-ardb@kernel.org> Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org Drop some bogus Kconfig selects that are not entirely accurate, and unnecessary to begin with, since the same Kconfig options also select LIB80211 features that already imply the selected functionality (AES for CCMP, ARC4 and ECB for TKIP) Signed-off-by: Ard Biesheuvel --- drivers/net/wireless/intel/ipw2x00/Kconfig | 4 ---- drivers/net/wireless/intersil/hostap/Kconfig | 4 ---- 2 files changed, 8 deletions(-) diff --git a/drivers/net/wireless/intel/ipw2x00/Kconfig b/drivers/net/wireless/intel/ipw2x00/Kconfig index b1e7b4470842..1650d5865aa0 100644 --- a/drivers/net/wireless/intel/ipw2x00/Kconfig +++ b/drivers/net/wireless/intel/ipw2x00/Kconfig @@ -160,11 +160,7 @@ config LIBIPW select WIRELESS_EXT select WEXT_SPY select CRYPTO - select CRYPTO_ARC4 - select CRYPTO_ECB - select CRYPTO_AES select CRYPTO_MICHAEL_MIC - select CRYPTO_ECB select CRC32 select LIB80211 select LIB80211_CRYPT_WEP diff --git a/drivers/net/wireless/intersil/hostap/Kconfig b/drivers/net/wireless/intersil/hostap/Kconfig index 6ad88299432f..c865d3156cea 100644 --- a/drivers/net/wireless/intersil/hostap/Kconfig +++ b/drivers/net/wireless/intersil/hostap/Kconfig @@ -5,11 +5,7 @@ config HOSTAP select WEXT_SPY select WEXT_PRIV select CRYPTO - select CRYPTO_ARC4 - select CRYPTO_ECB - select CRYPTO_AES select CRYPTO_MICHAEL_MIC - select CRYPTO_ECB select CRC32 select LIB80211 select LIB80211_CRYPT_WEP