From patchwork Tue Jul 26 06:15:07 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leonard Crestez X-Patchwork-Id: 12928648 X-Patchwork-Delegate: kuba@kernel.org 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 99FBBCCA48E for ; Tue, 26 Jul 2022 06:16:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237696AbiGZGQa (ORCPT ); Tue, 26 Jul 2022 02:16:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57446 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237591AbiGZGPu (ORCPT ); Tue, 26 Jul 2022 02:15:50 -0400 Received: from mail-ed1-x52b.google.com (mail-ed1-x52b.google.com [IPv6:2a00:1450:4864:20::52b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E9957B845; Mon, 25 Jul 2022 23:15:48 -0700 (PDT) Received: by mail-ed1-x52b.google.com with SMTP id z18so4176655edb.10; Mon, 25 Jul 2022 23:15:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=ws+VbvHjw+TY5I46qGDXZAvdoD2Rg2Qpp30wjTYhs6o=; b=lzZvvrbqeNUj+Ko1Jsd2jej4nqDO3BEJw+2NwuHp+zhRR6Fk5Fxb0VUdwRZPSnyqLS x9UIKjAxVd1CYYavEyJ34zBmk2eFj1J9ZdMnSbDFp9viNu4qm/Ov4oSjwhOhIVPoG46l DsCfCmnPvLRloZtdDzAK3F5ofne1hcJXDWkYQvt6pqx/dQmVc6O+y8QXC1IKGApkPiPM wnACtOk2Bp8Sm6fyjYIrRZrNO1FFtxUkIB2rKUl8zqdHhza1x3aYpKJHe81YZUaRE6Ai 1tQLhhASA+xzUAssW9PyVfeKbezrdgbpA3Ok/3GT0D+mCF1qA5kFjyFlROwcvC1HkL9m eU5g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=ws+VbvHjw+TY5I46qGDXZAvdoD2Rg2Qpp30wjTYhs6o=; b=gS3UbQyLIEBtH0P0lryxRwHIEPcesQa3YOadegM4pKY7J8S0Io6wrgi6lyOhxm9NFU HOS0wDaSnCDs3vUy7VQGhvS4/JHmAX+44ONcAB1oNrrwtqfm25M76rNUgUaBFtnAzyiY GgPteah7/Uh8YU2pdLx2epU2ehyzwlut1gwsNTju8y47pytvBLm3DpWjl7VvXojH991Q gl1LT68vYHym6LEUAaI1wyvhHRcpt6h4BoKJ16YhgvfcYFwQQK40+uuQzAiyNQc2LkcN pjIC0fOJoEI1RqzP6sfqRbX0loX7HGDrnoN0odJneD3bsXxkA6FgxjAHcXeLy7PBPeU2 1+VA== X-Gm-Message-State: AJIora/+h331yhKfJBa26nz+PDOzXRyC4DZf2/ZPtY3N6ketz6nsycQA 0gHskZv1k4xFd1ZTbqr/WFU= X-Google-Smtp-Source: AGRyM1urO8b9Y5B6A5IGIcVRIT2gt9u0xDqdq5yUfQxbvHKKVeC068HPwNyqrGHliMu0HoMiDZHLkA== X-Received: by 2002:a05:6402:50d0:b0:43c:99e:3a71 with SMTP id h16-20020a05640250d000b0043c099e3a71mr7369887edb.89.1658816147413; Mon, 25 Jul 2022 23:15:47 -0700 (PDT) Received: from localhost.localdomain ([2a04:241e:502:a080:2b68:36a:5a94:4ba1]) by smtp.gmail.com with ESMTPSA id l23-20020a056402345700b0043ba7df7a42sm8133067edc.26.2022.07.25.23.15.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Jul 2022 23:15:47 -0700 (PDT) From: Leonard Crestez To: David Ahern , Eric Dumazet , Philip Paeps Cc: Dmitry Safonov <0x7f454c46@gmail.com>, Shuah Khan , "David S. Miller" , Herbert Xu , Kuniyuki Iwashima , Hideaki YOSHIFUJI , Jakub Kicinski , Yuchung Cheng , Francesco Ruggeri , 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 v6 05/26] tcp: Refactor tcp_sig_hash_skb_data for AO Date: Tue, 26 Jul 2022 09:15:07 +0300 Message-Id: <8b8e2d5db031795960b9c31ee30e3f2315bc6eda.1658815925.git.cdleonard@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@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 7d335f96238d..793e8802fef0 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -1716,11 +1716,11 @@ 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 791f218b8c66..4cdc34200bcf 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -4468,16 +4468,19 @@ 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; @@ -4500,16 +4503,20 @@ 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; @@ -4587,11 +4594,11 @@ 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 d011937b8785..5c13d3460ce1 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -1388,11 +1388,11 @@ 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 85b8b765dcb1..16e85ae4f029 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -751,11 +751,11 @@ 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))