From mboxrd@z Thu Jan 1 00:00:00 1970 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 8A404C77B7E for ; Wed, 24 May 2023 01:19:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238862AbjEXBTE (ORCPT ); Tue, 23 May 2023 21:19:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58332 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230299AbjEXBTC (ORCPT ); Tue, 23 May 2023 21:19:02 -0400 Received: from mail-qk1-x736.google.com (mail-qk1-x736.google.com [IPv6:2607:f8b0:4864:20::736]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 02C06E5; Tue, 23 May 2023 18:19:00 -0700 (PDT) Received: by mail-qk1-x736.google.com with SMTP id af79cd13be357-75affb4d0f9so49323085a.2; Tue, 23 May 2023 18:19:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1684891140; x=1687483140; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=TJv/Mw0cjZxSPI53855B262nqFR1u1C+NNKjhLR5zAc=; b=bHh2xG4vMLwDfNkJoMtqyCOK1LyFyld0lllv/VgIUkukjyDA+3SoBce0g0B/7yUrV3 a0NeiyWiF8xzqkzj2yCXi5XGoukztOJQjPKDJN47yZOBHkkdWZtSVIAOm3rw3dH5Bl1b Un1LlbsPAPrZm4FlKCbnIwLloVEKU0CDgmYXjLuVs6jI2Bef5IErYLRdZ7TFBDLAC4+h vn0cTwa3oOvHw+7yaYCnj/DiQiJizfg4GiPvHZ8nIPSs3b/EYMuuTor9mWI1w6NZV+Is Uex0+ruJrQfU9FvCu0g1Yy9+KLo6ZNpxNnlAec+Okm9RrLAh0K9izme21sMpzGlRn5qe gqtQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1684891140; x=1687483140; 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:message-id:reply-to; bh=TJv/Mw0cjZxSPI53855B262nqFR1u1C+NNKjhLR5zAc=; b=d2vUx0sQSHgujYZE12HEhxOV1wH/am9cYigjWKJNLUNBIpkR0F62kU+SDjsPO+4laN I04VHWtgcdL2zJzRzZiJEQHHmuJmiPeBuQJbioLNZMM1RCc3vSVlViuX4iknKaaD23kU Hxipj5Q9tiEsbnTyTYq/aD220mpIVpO6wSE8BQ0rtym03bK51DjvXg88fz5FO0sA8Fhl 6g8+dSno+ScnQWI69ZxvAmrC+9Z4ihJOENb+1tX5ZE+rpBpAhnPxeoFqmcOb1zbTpLkK K8qysq8lumu971GYbkM03zfN5qEskPvGuSTS+PTwpcsAYhQFc85UEhdDPUblzoGohFuP ajCA== X-Gm-Message-State: AC+VfDz/AmDuBxQE0rU+n6dDJJcqXfsaIv5X0/VvdHJF/ibuwcHbPt0p axYeNoUTVPzpGr1wog57rg== X-Google-Smtp-Source: ACHHUZ6UUtaooFrMdnyoTupZPs4CYAYMtiEstJADWeY6Ol3H5Hm0LxbLRRZHk2/2p4+6eZMvpl4oiA== X-Received: by 2002:a05:620a:a9b:b0:75b:23a0:e7df with SMTP id v27-20020a05620a0a9b00b0075b23a0e7dfmr6174329qkg.64.1684891139934; Tue, 23 May 2023 18:18:59 -0700 (PDT) Received: from C02FL77VMD6R.bytedance.net ([2600:1700:d860:12b0:c32:b55:eaec:a556]) by smtp.gmail.com with ESMTPSA id ow21-20020a05620a821500b0074636e35405sm2913190qkn.65.2023.05.23.18.18.57 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 23 May 2023 18:18:59 -0700 (PDT) From: Peilin Ye X-Google-Original-From: Peilin Ye To: "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Jamal Hadi Salim , Cong Wang , Jiri Pirko Cc: Peilin Ye , Daniel Borkmann , John Fastabend , Vlad Buslov , Pedro Tammela , Hillf Danton , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Cong Wang , Peilin Ye Subject: [PATCH v5 net 2/6] net/sched: sch_clsact: Only create under TC_H_CLSACT Date: Tue, 23 May 2023 18:18:35 -0700 Message-Id: <0c07bd5b72c67a2edf126cd2c6a9daadddb3ca95.1684887977.git.peilin.ye@bytedance.com> X-Mailer: git-send-email 2.30.1 (Apple Git-130) In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Peilin Ye clsact Qdiscs are only supposed to be created under TC_H_CLSACT (which equals TC_H_INGRESS). Return -EOPNOTSUPP if 'parent' is not TC_H_CLSACT. Fixes: 1f211a1b929c ("net, sched: add clsact qdisc") Signed-off-by: Peilin Ye --- change in v5: - avoid underflowing @egress_needed_key in ->destroy(), reported by Pedro change in v3, v4: - add in-body From: tag net/sched/sch_ingress.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/net/sched/sch_ingress.c b/net/sched/sch_ingress.c index f9ef6deb2770..35963929e117 100644 --- a/net/sched/sch_ingress.c +++ b/net/sched/sch_ingress.c @@ -225,6 +225,9 @@ static int clsact_init(struct Qdisc *sch, struct nlattr *opt, struct net_device *dev = qdisc_dev(sch); int err; + if (sch->parent != TC_H_CLSACT) + return -EOPNOTSUPP; + net_inc_ingress_queue(); net_inc_egress_queue(); @@ -254,6 +257,9 @@ static void clsact_destroy(struct Qdisc *sch) { struct clsact_sched_data *q = qdisc_priv(sch); + if (sch->parent != TC_H_CLSACT) + return; + tcf_block_put_ext(q->egress_block, sch, &q->egress_block_info); tcf_block_put_ext(q->ingress_block, sch, &q->ingress_block_info); -- 2.20.1