From patchwork Wed Aug 26 19:40:09 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Antony Antony X-Patchwork-Id: 261881 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=-11.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_SANE_1 autolearn=ham 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 8DBF5C433E1 for ; Wed, 26 Aug 2020 19:40:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5EB5B2076C for ; Wed, 26 Aug 2020 19:40:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727047AbgHZTkX (ORCPT ); Wed, 26 Aug 2020 15:40:23 -0400 Received: from a.mx.secunet.com ([62.96.220.36]:37988 "EHLO a.mx.secunet.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727020AbgHZTkT (ORCPT ); Wed, 26 Aug 2020 15:40:19 -0400 Received: from localhost (localhost [127.0.0.1]) by a.mx.secunet.com (Postfix) with ESMTP id 2F5C4205B2; Wed, 26 Aug 2020 21:40:17 +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 X-utnoOZ7xgs; Wed, 26 Aug 2020 21:40:16 +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 6E9B2205AA; Wed, 26 Aug 2020 21:40:16 +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; Wed, 26 Aug 2020 21:40:16 +0200 Received: from moon.secunet.de (172.18.26.122) 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; Wed, 26 Aug 2020 21:40:15 +0200 Date: Wed, 26 Aug 2020 21:40:09 +0200 From: Antony Antony To: Steffen Klassert , , Herbert Xu CC: Antony Antony , Antony Antony Subject: [PATCH v2 3/4] xfrm: clone XFRMA_SEC_CTX in xfrm_do_migrate Message-ID: <20200826194009.GA15030@moon.secunet.de> Reply-To: References: <20200820181158.GA19658@moon.secunet.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200820181158.GA19658@moon.secunet.de> Organization: secunet User-Agent: Mutt/1.10.1 (2018-07-13) X-ClientProxiedBy: cas-essen-02.secunet.de (10.53.40.202) 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 XFRMA_SEC_CTX was not cloned from the old to the new. Migrate this attribute during XFRMA_MSG_MIGRATE v1->v2: - return -ENOMEM on error Fixes: 80c9abaabf42 ("[XFRM]: Extension for dynamic update of endpoint address(es)") Signed-off-by: Antony Antony --- net/xfrm/xfrm_state.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c index 3a000f289dcd..16988303aed6 100644 --- a/net/xfrm/xfrm_state.c +++ b/net/xfrm/xfrm_state.c @@ -1441,6 +1441,30 @@ int xfrm_state_add(struct xfrm_state *x) EXPORT_SYMBOL(xfrm_state_add); #ifdef CONFIG_XFRM_MIGRATE +static inline bool clone_security(struct xfrm_state *x, struct xfrm_sec_ctx *security) +{ + struct xfrm_user_sec_ctx *uctx; + int size = sizeof(*uctx) + security->ctx_len; + int err; + + uctx = kmalloc(size, GFP_KERNEL); + if (!uctx) + return -ENOMEM; + + uctx->exttype = XFRMA_SEC_CTX; + uctx->len = size; + uctx->ctx_doi = security->ctx_doi; + uctx->ctx_alg = security->ctx_alg; + uctx->ctx_len = security->ctx_len; + memcpy(uctx + 1, security->ctx_str, security->ctx_len); + err = security_xfrm_state_alloc(x, uctx); + kfree(uctx); + if (err) + return err; + + return 0; +} + static struct xfrm_state *xfrm_state_clone(struct xfrm_state *orig, struct xfrm_encap_tmpl *encap) { @@ -1497,6 +1521,10 @@ static struct xfrm_state *xfrm_state_clone(struct xfrm_state *orig, goto error; } + if (orig->security) + if (clone_security(x, orig->security)) + goto error; + if (orig->coaddr) { x->coaddr = kmemdup(orig->coaddr, sizeof(*x->coaddr), GFP_KERNEL);