From patchwork Fri Jan 18 04:55:53 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Atul Gupta X-Patchwork-Id: 10769419 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D66171390 for ; Fri, 18 Jan 2019 04:56:15 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C408D2EC64 for ; Fri, 18 Jan 2019 04:56:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B80472EFBB; Fri, 18 Jan 2019 04:56:15 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2D1632EC64 for ; Fri, 18 Jan 2019 04:56:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727060AbfARE4O (ORCPT ); Thu, 17 Jan 2019 23:56:14 -0500 Received: from stargate.chelsio.com ([12.32.117.8]:39448 "EHLO stargate.chelsio.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726902AbfARE4O (ORCPT ); Thu, 17 Jan 2019 23:56:14 -0500 Received: from beagle7.asicdesigners.com (beagle7.asicdesigners.com [10.192.192.157]) by stargate.chelsio.com (8.13.8/8.13.8) with ESMTP id x0I4u4RS005670; Thu, 17 Jan 2019 20:56:04 -0800 From: Atul Gupta To: davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, netdev@vger.kernel.org, dt@chelsio.com Cc: atul.gupta@chelsio.com Subject: [net-next 1/3] net/tls: build_protos moved to common routine Date: Thu, 17 Jan 2019 20:55:53 -0800 Message-Id: <20190118045553.2774-1-atul.gupta@chelsio.com> X-Mailer: git-send-email 2.20.0.rc2.7.g965798d MIME-Version: 1.0 Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP build protos is required for tls_hw_prot also hence moved to 'tls_build_proto' and called as required from tls_init and tls_hw_proto. This is required since build_protos for v4 is moved from tls_register to tls_init in commit <28cb6f1eaffdc5a6a9707cac55f4a43aa3fd7895> Signed-off-by: Atul Gupta --- net/tls/tls_main.c | 54 ++++++++++++++++++++++++++++++++---------------------- 1 file changed, 32 insertions(+), 22 deletions(-) diff --git a/net/tls/tls_main.c b/net/tls/tls_main.c index 78cb4a5..fc97a10 100644 --- a/net/tls/tls_main.c +++ b/net/tls/tls_main.c @@ -61,6 +61,8 @@ enum { static DEFINE_SPINLOCK(device_spinlock); static struct proto tls_prots[TLS_NUM_PROTS][TLS_NUM_CONFIG][TLS_NUM_CONFIG]; static struct proto_ops tls_sw_proto_ops; +static void build_protos(struct proto prot[TLS_NUM_CONFIG][TLS_NUM_CONFIG], + struct proto *base); static void update_sk_prot(struct sock *sk, struct tls_context *ctx) { @@ -551,6 +553,32 @@ static struct tls_context *create_ctx(struct sock *sk) return ctx; } +static void tls_build_proto(struct sock *sk) +{ + int ip_ver = sk->sk_family == AF_INET6 ? TLSV6 : TLSV4; + + /* Build IPv6 TLS whenever the address of tcpv6 _prot changes */ + if (ip_ver == TLSV6 && + unlikely(sk->sk_prot != smp_load_acquire(&saved_tcpv6_prot))) { + mutex_lock(&tcpv6_prot_mutex); + if (likely(sk->sk_prot != saved_tcpv6_prot)) { + build_protos(tls_prots[TLSV6], sk->sk_prot); + smp_store_release(&saved_tcpv6_prot, sk->sk_prot); + } + mutex_unlock(&tcpv6_prot_mutex); + } + + if (ip_ver == TLSV4 && + unlikely(sk->sk_prot != smp_load_acquire(&saved_tcpv4_prot))) { + mutex_lock(&tcpv4_prot_mutex); + if (likely(sk->sk_prot != saved_tcpv4_prot)) { + build_protos(tls_prots[TLSV4], sk->sk_prot); + smp_store_release(&saved_tcpv4_prot, sk->sk_prot); + } + mutex_unlock(&tcpv4_prot_mutex); + } +} + static int tls_hw_prot(struct sock *sk) { struct tls_context *ctx; @@ -564,12 +592,15 @@ static int tls_hw_prot(struct sock *sk) if (!ctx) goto out; + spin_unlock_bh(&device_spinlock); + tls_build_proto(sk); ctx->hash = sk->sk_prot->hash; ctx->unhash = sk->sk_prot->unhash; ctx->sk_proto_close = sk->sk_prot->close; ctx->rx_conf = TLS_HW_RECORD; ctx->tx_conf = TLS_HW_RECORD; update_sk_prot(sk, ctx); + spin_lock_bh(&device_spinlock); rc = 1; break; } @@ -668,7 +699,6 @@ static void build_protos(struct proto prot[TLS_NUM_CONFIG][TLS_NUM_CONFIG], static int tls_init(struct sock *sk) { - int ip_ver = sk->sk_family == AF_INET6 ? TLSV6 : TLSV4; struct tls_context *ctx; int rc = 0; @@ -691,27 +721,7 @@ static int tls_init(struct sock *sk) goto out; } - /* Build IPv6 TLS whenever the address of tcpv6 _prot changes */ - if (ip_ver == TLSV6 && - unlikely(sk->sk_prot != smp_load_acquire(&saved_tcpv6_prot))) { - mutex_lock(&tcpv6_prot_mutex); - if (likely(sk->sk_prot != saved_tcpv6_prot)) { - build_protos(tls_prots[TLSV6], sk->sk_prot); - smp_store_release(&saved_tcpv6_prot, sk->sk_prot); - } - mutex_unlock(&tcpv6_prot_mutex); - } - - if (ip_ver == TLSV4 && - unlikely(sk->sk_prot != smp_load_acquire(&saved_tcpv4_prot))) { - mutex_lock(&tcpv4_prot_mutex); - if (likely(sk->sk_prot != saved_tcpv4_prot)) { - build_protos(tls_prots[TLSV4], sk->sk_prot); - smp_store_release(&saved_tcpv4_prot, sk->sk_prot); - } - mutex_unlock(&tcpv4_prot_mutex); - } - + tls_build_proto(sk); ctx->tx_conf = TLS_BASE; ctx->rx_conf = TLS_BASE; update_sk_prot(sk, ctx);