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 19D99C433EF for ; Sat, 9 Apr 2022 09:44:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231748AbiDIJqQ (ORCPT ); Sat, 9 Apr 2022 05:46:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38956 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231248AbiDIJqP (ORCPT ); Sat, 9 Apr 2022 05:46:15 -0400 Received: from mail-lj1-x233.google.com (mail-lj1-x233.google.com [IPv6:2a00:1450:4864:20::233]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2E074B6E40 for ; Sat, 9 Apr 2022 02:44:08 -0700 (PDT) Received: by mail-lj1-x233.google.com with SMTP id u19so4664195ljd.11 for ; Sat, 09 Apr 2022 02:44:08 -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:mime-version :content-transfer-encoding; bh=Aa0WMJDHXrgOffdEBwcMWFGr+eRTwZuf02RIunnI7aM=; b=YRJvt1FmYIM18kSlHufjKslBbriRpmUzwCRYiFNJz1fhIhaJ0hzmiuvjlnv8jIp9V3 hwMyfSwvOoigc09Q8m+evZAAmA6aXQAD+rbARqYBe2Tb3Q+GI/4A7aLQB6N4yQS4RbcL GbHc817lP7E6vceKcwc/vtZpu2CrP/v2IANYfQilPM9BRYSNpPJWpkilLkIziaBqD/3T 4mBxtU+mgaTikaf/QnasXHnsCzOL/ALil4F0GLTDjT4Iq8hoHrFzNc1sm3xKeo2wK0Lu D/FO0LZ4Ei74egdM2Rbsbgj34lh8Tu5/+TOVowUjFZQssMdsO1SWQJaNz2WYAACzoAkc M+9g== 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:mime-version :content-transfer-encoding; bh=Aa0WMJDHXrgOffdEBwcMWFGr+eRTwZuf02RIunnI7aM=; b=NsLT6seoHNwR+aqoojVFZomFonUmuRnnHiLlT1GAwPFEDz6fRnr9PG72Q+qub8rEL7 gIq2G2bq4pLIsFS5cx59WJaOVBR75Z2RXtssg41KjP/5q6J9pQ4kfKuoJoQ68TTo4rJy kQ/ycHrYQGkbmQDgBkWRuWHg19n+s6TTMpdzsbEZWMDUekctLGVpKxJyrtcYbJa8rW0y z36aVk9eq0XYFSwlamqx96A9sa0mPpa6uEnU2cdx/AxJdprU8ase/mjsveOjMtZT1PMV IlFu2TMHD6sNypsif4hmLzAPVqAdfr/8Irg1x11ymuSMSPPKwSfU2hLvXshRIFgw66Rl gUBw== X-Gm-Message-State: AOAM533LNPhU0jZpa8csLXe838fQ9RvW3eoL/KmNXt3xBRSoxYAXukl5 L71wJaRvVssjYPP1GamD6/SfPOJKJNg= X-Google-Smtp-Source: ABdhPJzEq40Eupo28hAC4nb0NTg0S/4e6MGrFYDbUhziQTeZdd7y/vW0U0xEkUMSGQgzxTyo2cxhAA== X-Received: by 2002:a2e:90d6:0:b0:246:e44:bcf6 with SMTP id o22-20020a2e90d6000000b002460e44bcf6mr13743576ljg.501.1649497446088; Sat, 09 Apr 2022 02:44:06 -0700 (PDT) Received: from localhost.localdomain (91-159-150-194.elisa-laajakaista.fi. [91.159.150.194]) by smtp.gmail.com with ESMTPSA id u12-20020a19600c000000b0044a2e4ce20esm2680675lfb.193.2022.04.09.02.44.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 09 Apr 2022 02:44:05 -0700 (PDT) From: Topi Miettinen To: netfilter-devel@vger.kernel.org Cc: Topi Miettinen Subject: [PATCH] doc: Document that kernel may accept unimplemented expressions Date: Sat, 9 Apr 2022 12:44:02 +0300 Message-Id: <20220409094402.22567-1-toiwoton@gmail.com> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: netfilter-devel@vger.kernel.org Kernel silently accepts input chain filters using meta skuid, meta skgid, meta cgroup or socket cgroupv2 expressions but they don't work yet. Warn the users of this possibility. Signed-off-by: Topi Miettinen --- doc/nft.txt | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/doc/nft.txt b/doc/nft.txt index f7a53ac9..4820b4ae 100644 --- a/doc/nft.txt +++ b/doc/nft.txt @@ -932,6 +932,11 @@ filter output oif wlan0 ^^^^^^^^^^^^^^^^^^^^^^^ --------------------------------- +Note that the kernel may accept expressions without errors even if it +doesn't implement the feature. For example, input chain filters using +*meta skuid*, *meta skgid*, *meta cgroup* or *socket cgroupv2* +expressions are silently accepted but they don't work yet. + EXIT STATUS ----------- On success, nft exits with a status of 0. Unspecified errors cause it to exit base-commit: 6fa4ff56385831f01bd9d993178969a4eddbcdbf -- 2.35.1