From patchwork Thu Jul 30 05:41:26 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Steffen Klassert X-Patchwork-Id: 1338670 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=secunet.com Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4BHKFh0RL1z9sRW for ; Thu, 30 Jul 2020 15:48:08 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728592AbgG3FsE (ORCPT ); Thu, 30 Jul 2020 01:48:04 -0400 Received: from a.mx.secunet.com ([62.96.220.36]:56306 "EHLO a.mx.secunet.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728535AbgG3FsD (ORCPT ); Thu, 30 Jul 2020 01:48:03 -0400 Received: from localhost (localhost [127.0.0.1]) by a.mx.secunet.com (Postfix) with ESMTP id 89C072057B; Thu, 30 Jul 2020 07:48:01 +0200 (CEST) X-Virus-Scanned: by secunet Received: from a.mx.secunet.com ([127.0.0.1]) by localhost (a.mx.secunet.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id gJSndUrWHPw9; Thu, 30 Jul 2020 07:48:01 +0200 (CEST) Received: from mail-essen-02.secunet.de (mail-essen-02.secunet.de [10.53.40.205]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by a.mx.secunet.com (Postfix) with ESMTPS id 4759F205AA; Thu, 30 Jul 2020 07:48:00 +0200 (CEST) Received: from mbx-essen-01.secunet.de (10.53.40.197) by mail-essen-02.secunet.de (10.53.40.205) with Microsoft SMTP Server (TLS) id 14.3.487.0; Thu, 30 Jul 2020 07:48:00 +0200 Received: from gauss2.secunet.de (10.182.7.193) by mbx-essen-01.secunet.de (10.53.40.197) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1979.3; Thu, 30 Jul 2020 07:47:58 +0200 Received: by gauss2.secunet.de (Postfix, from userid 1000) id 6AD273184682; Thu, 30 Jul 2020 07:41:44 +0200 (CEST) From: Steffen Klassert To: David Miller CC: Herbert Xu , Steffen Klassert , Subject: [PATCH 15/19] ip6_vti: not register vti_ipv6_handler twice Date: Thu, 30 Jul 2020 07:41:26 +0200 Message-ID: <20200730054130.16923-16-steffen.klassert@secunet.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200730054130.16923-1-steffen.klassert@secunet.com> References: <20200730054130.16923-1-steffen.klassert@secunet.com> MIME-Version: 1.0 X-ClientProxiedBy: cas-essen-01.secunet.de (10.53.40.201) To mbx-essen-01.secunet.de (10.53.40.197) X-EXCLAIMER-MD-CONFIG: 2c86f778-e09b-4440-8b15-867914633a10 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Xin Long An xfrm6_tunnel object is linked into the list when registering, so vti_ipv6_handler can not be registered twice, otherwise its next pointer will be overwritten on the second time. So this patch is to define a new xfrm6_tunnel object to register for AF_INET. Fixes: 2ab110cbb0c0 ("ip6_vti: support IP6IP tunnel processing") Signed-off-by: Xin Long Signed-off-by: Steffen Klassert --- net/ipv6/ip6_vti.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c index dfa93bc857d2..18ec4ab45be7 100644 --- a/net/ipv6/ip6_vti.c +++ b/net/ipv6/ip6_vti.c @@ -1236,6 +1236,13 @@ static struct xfrm6_tunnel vti_ipv6_handler __read_mostly = { .err_handler = vti6_err, .priority = 0, }; + +static struct xfrm6_tunnel vti_ip6ip_handler __read_mostly = { + .handler = vti6_rcv_tunnel, + .cb_handler = vti6_rcv_cb, + .err_handler = vti6_err, + .priority = 0, +}; #endif /** @@ -1268,7 +1275,7 @@ static int __init vti6_tunnel_init(void) err = xfrm6_tunnel_register(&vti_ipv6_handler, AF_INET6); if (err < 0) goto vti_tunnel_ipv6_failed; - err = xfrm6_tunnel_register(&vti_ipv6_handler, AF_INET); + err = xfrm6_tunnel_register(&vti_ip6ip_handler, AF_INET); if (err < 0) goto vti_tunnel_ip6ip_failed; #endif @@ -1282,7 +1289,7 @@ static int __init vti6_tunnel_init(void) rtnl_link_failed: #if IS_ENABLED(CONFIG_INET6_XFRM_TUNNEL) - err = xfrm6_tunnel_deregister(&vti_ipv6_handler, AF_INET); + err = xfrm6_tunnel_deregister(&vti_ip6ip_handler, AF_INET); vti_tunnel_ip6ip_failed: err = xfrm6_tunnel_deregister(&vti_ipv6_handler, AF_INET6); vti_tunnel_ipv6_failed: @@ -1306,7 +1313,7 @@ static void __exit vti6_tunnel_cleanup(void) { rtnl_link_unregister(&vti6_link_ops); #if IS_ENABLED(CONFIG_INET6_XFRM_TUNNEL) - xfrm6_tunnel_deregister(&vti_ipv6_handler, AF_INET); + xfrm6_tunnel_deregister(&vti_ip6ip_handler, AF_INET); xfrm6_tunnel_deregister(&vti_ipv6_handler, AF_INET6); #endif xfrm6_protocol_deregister(&vti_ipcomp6_protocol, IPPROTO_COMP);