From patchwork Mon Sep 5 07:05:40 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leonard Crestez X-Patchwork-Id: 602797 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CF8F9ECAAA1 for ; Mon, 5 Sep 2022 07:07:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236971AbiIEHHV (ORCPT ); Mon, 5 Sep 2022 03:07:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46650 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237145AbiIEHG0 (ORCPT ); Mon, 5 Sep 2022 03:06:26 -0400 Received: from mail-ed1-x533.google.com (mail-ed1-x533.google.com [IPv6:2a00:1450:4864:20::533]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 778663E74F; Mon, 5 Sep 2022 00:06:20 -0700 (PDT) Received: by mail-ed1-x533.google.com with SMTP id e18so10100992edj.3; Mon, 05 Sep 2022 00:06:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date; bh=jgNfwZ7k94vT0v8i2q25dLxxA8TfUJclKmJSYdEksP8=; b=qsQwLa1GK3y1pugdkDQwatGjeNewelma1TwteP5TqwutbEQ2i9ELgrRb78zcDttOJQ XMNI6scy85++wCoy6baJHjC8NEPXiGm0gRmxJsEKQahCuWWV6Avb433ovkdglewLCLuj c8eUqa7wjXtISj5FoN8MlsQnyJEzPbpp25TjeT2gCmFxqEq0ir7L0PBGm0nF8Deww7Zo r6bmVKn1+nIeibGBJgP3ZzRB2Sqcqxy0cdX7rSUWY4oJLsxZQR1kCp1Rt4BkRfopPqph AhtcE/ivXSUbHT5+b6jdDdiageZN8cl0QGYJ9RG5gWVg5593kyypFltFFpeSN8sInzqu VB0A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date; bh=jgNfwZ7k94vT0v8i2q25dLxxA8TfUJclKmJSYdEksP8=; b=uj78YUpc/3Dn4i7tyM9paTCpFFOQ1Bp3Hy/27l85CD/9gzoEau9tx1akjUd/1yIoOI oyK8mFFxHWAoGnoUymeU35L0bwaMi0ELRQU73yWElokOd2QHBMTaiTrtUfBejb9q9i5p vHUslMoKd3FQNWG5w7eJ3b+CiTSA6JH19xaJLErKBXSCOpA9XW8glO8SyHVXbKNwvSc5 WXf+6iH1FHQiQICYBxF/WrVBXcAEY6Itz65naVqM0d0mhcwICjnIcvnDBRbI+47VjVR6 4H7VMkb/8oD0T6u9X+CHNaoO40rWBpP4CKqB9CfYhJh3PVcldL7XvOpmmPlV1TX4yjso EPWQ== X-Gm-Message-State: ACgBeo0zQuDPPKdcbjBF/CEHeNCJt0UG58biXMW1L6K5PKeMAjYmrjyQ YMeXXA3yQKIhuGdjkd8ITAs= X-Google-Smtp-Source: AA6agR6B04ULApKE61IuXNzroQQFZ6DvkSsWvbgkfYFu0vqj+XX2JGZ9WJ+TaueG6wiarW9Qr4Ir4A== X-Received: by 2002:a05:6402:d05:b0:425:b7ab:776e with SMTP id eb5-20020a0564020d0500b00425b7ab776emr44128319edb.142.1662361578670; Mon, 05 Sep 2022 00:06:18 -0700 (PDT) Received: from localhost.localdomain ([2a04:241e:502:a080:40ec:9f50:387:3cfb]) by smtp.gmail.com with ESMTPSA id n27-20020a056402515b00b0043cf2e0ce1csm5882775edd.48.2022.09.05.00.06.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 05 Sep 2022 00:06:18 -0700 (PDT) From: Leonard Crestez To: David Ahern , Eric Dumazet , Dmitry Safonov <0x7f454c46@gmail.com> Cc: Francesco Ruggeri , Salam Noureddine , Philip Paeps , Shuah Khan , "David S. Miller" , Herbert Xu , Kuniyuki Iwashima , Hideaki YOSHIFUJI , Jakub Kicinski , Yuchung Cheng , Mat Martineau , Christoph Paasch , Ivan Delalande , Caowangbao , Priyaranjan Jha , netdev@vger.kernel.org, linux-crypto@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v8 04/26] tcp: Refactor tcp_sig_hash_skb_data for AO Date: Mon, 5 Sep 2022 10:05:40 +0300 Message-Id: X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org This function feeds all SKB data into an ahash and this behavior is identical between the TCP-MD5 and TCP-AO so rename and refactor. Signed-off-by: Leonard Crestez --- include/net/tcp.h | 2 +- net/ipv4/tcp.c | 17 ++++++++++++----- net/ipv4/tcp_ipv4.c | 2 +- net/ipv6/tcp_ipv6.c | 2 +- 4 files changed, 15 insertions(+), 8 deletions(-) diff --git a/include/net/tcp.h b/include/net/tcp.h index 9955a88faf9b..fbe18b5bf576 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -1718,11 +1718,11 @@ struct tcp_md5sig_pool *tcp_get_md5sig_pool(void); static inline void tcp_put_md5sig_pool(void) { local_bh_enable(); } -int tcp_md5_hash_skb_data(struct tcp_md5sig_pool *, const struct sk_buff *, +int tcp_sig_hash_skb_data(struct ahash_request *, const struct sk_buff *, unsigned int header_len); int tcp_md5_hash_key(struct tcp_md5sig_pool *hp, const struct tcp_md5sig_key *key); /* From tcp_fastopen.c */ diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 6a0357cf05b5..9c362f357fbb 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -4511,16 +4511,19 @@ struct tcp_md5sig_pool *tcp_get_md5sig_pool(void) local_bh_enable(); return NULL; } EXPORT_SYMBOL(tcp_get_md5sig_pool); -int tcp_md5_hash_skb_data(struct tcp_md5sig_pool *hp, +#endif /* CONFIG_TCP_MD5SIG */ + +#if defined(CONFIG_TCP_MD5SIG) || defined(CONFIG_TCP_AUTHOPT) + +int tcp_sig_hash_skb_data(struct ahash_request *req, const struct sk_buff *skb, unsigned int header_len) { struct scatterlist sg; const struct tcphdr *tp = tcp_hdr(skb); - struct ahash_request *req = hp->md5_req; unsigned int i; const unsigned int head_data_len = skb_headlen(skb) > header_len ? skb_headlen(skb) - header_len : 0; const struct skb_shared_info *shi = skb_shinfo(skb); struct sk_buff *frag_iter; @@ -4543,16 +4546,20 @@ int tcp_md5_hash_skb_data(struct tcp_md5sig_pool *hp, if (crypto_ahash_update(req)) return 1; } skb_walk_frags(skb, frag_iter) - if (tcp_md5_hash_skb_data(hp, frag_iter, 0)) + if (tcp_sig_hash_skb_data(req, frag_iter, 0)) return 1; return 0; } -EXPORT_SYMBOL(tcp_md5_hash_skb_data); +EXPORT_SYMBOL(tcp_sig_hash_skb_data); + +#endif /* defined(CONFIG_TCP_MD5SIG) || defined(CONFIG_TCP_AUTHOPT) */ + +#ifdef CONFIG_TCP_MD5SIG int tcp_md5_hash_key(struct tcp_md5sig_pool *hp, const struct tcp_md5sig_key *key) { u8 keylen = READ_ONCE(key->keylen); /* paired with WRITE_ONCE() in tcp_md5_do_add */ struct scatterlist sg; @@ -4639,11 +4646,11 @@ tcp_inbound_md5_hash(const struct sock *sk, const struct sk_buff *skb, } return SKB_NOT_DROPPED_YET; } EXPORT_SYMBOL(tcp_inbound_md5_hash); -#endif +#endif /* CONFIG_TCP_MD5SIG */ void tcp_done(struct sock *sk) { struct request_sock *req; diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index f6d1dba31ca4..8debbd2c2f4b 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -1407,11 +1407,11 @@ int tcp_v4_md5_hash_skb(char *md5_hash, const struct tcp_md5sig_key *key, if (crypto_ahash_init(req)) goto clear_hash; if (tcp_v4_md5_hash_headers(hp, daddr, saddr, th, skb->len)) goto clear_hash; - if (tcp_md5_hash_skb_data(hp, skb, th->doff << 2)) + if (tcp_sig_hash_skb_data(hp->md5_req, skb, th->doff << 2)) goto clear_hash; if (tcp_md5_hash_key(hp, key)) goto clear_hash; ahash_request_set_crypt(req, NULL, md5_hash, 0); if (crypto_ahash_final(req)) diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 35013497e407..2e6333769ea5 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -768,11 +768,11 @@ static int tcp_v6_md5_hash_skb(char *md5_hash, if (crypto_ahash_init(req)) goto clear_hash; if (tcp_v6_md5_hash_headers(hp, daddr, saddr, th, skb->len)) goto clear_hash; - if (tcp_md5_hash_skb_data(hp, skb, th->doff << 2)) + if (tcp_sig_hash_skb_data(hp->md5_req, skb, th->doff << 2)) goto clear_hash; if (tcp_md5_hash_key(hp, key)) goto clear_hash; ahash_request_set_crypt(req, NULL, md5_hash, 0); if (crypto_ahash_final(req))