From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ed1-f47.google.com (mail-ed1-f47.google.com [209.85.208.47]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 033E51448ED for ; Tue, 16 Jul 2024 08:58:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.47 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721120319; cv=none; b=fx8XFWSj/QXER5zYLBlwtx+XH6qTHuSGhvjyDxHfOoV07Jq5Mvu4gLuP7V+oFXDNCD1aR2ggO5GXQDlB108q48Ygyr+WEULX07duJAirq4BSQWEnQVt2g8jBwu5IHDY+5v3cLCWkzSICDnIRA9OYvtisLFMMiTopUltxlIZ3K3k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721120319; c=relaxed/simple; bh=Qvu6/2sv4E/x1bqSzz0GteaUGzARIBIqi6/JMbHq+0s=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=ekTmRPYduwwbyagFp4yC6EkceZi/6AB3xz/0Wxz/h3CnLe8ijmzvPhsZ5E5vBIlPFCgDhzCwCnoesNtWtDP8cKpxrscp8APO1eyAl0zhV+XCSrSuj30YpMv+mlwM2M2Fpl4WHP0zTfTXFn8T8DvzumiGdx5G5JUeoS1+vnJ2O+Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=cloudflare.com; spf=pass smtp.mailfrom=cloudflare.com; dkim=pass (2048-bit key) header.d=cloudflare.com header.i=@cloudflare.com header.b=cP54LFqt; arc=none smtp.client-ip=209.85.208.47 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=cloudflare.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=cloudflare.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=cloudflare.com header.i=@cloudflare.com header.b="cP54LFqt" Received: by mail-ed1-f47.google.com with SMTP id 4fb4d7f45d1cf-595712c49ebso6308056a12.0 for ; Tue, 16 Jul 2024 01:58:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cloudflare.com; s=google09082023; t=1721120316; x=1721725116; darn=vger.kernel.org; h=mime-version:message-id:date:user-agent:references:in-reply-to :subject:cc:to:from:from:to:cc:subject:date:message-id:reply-to; bh=Qvu6/2sv4E/x1bqSzz0GteaUGzARIBIqi6/JMbHq+0s=; b=cP54LFqtaIVSVNSXFon3jdsannvFGBBfxO2GpVZHiMjNxomKchr+XMJM0NdDiGohUR +CSgb1oevachsvZiOQze+/0wUUoqFyZh59uuTNwikBxZz5XHeBoAuRVI1VuvWcO1H+91 csh7/a5JZANa92to8ZHY/qYXLthL40v6asPCEAjpQwStbwKr604xQUfg9QAG5b6i4m4g 3vzYJcXR2C663xh5qohsCVW2U8NLDTdlsJReryHXdNSQmwo97FKElW0ix3/WQiO1mRwc jcvN6QWdID5xBxTPQPEkRpkK8Vzfh+/D+MZaa05+PS16+SsBQmOoqdBEsrgp2ak4CzGH wmaA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1721120316; x=1721725116; h=mime-version:message-id:date:user-agent:references:in-reply-to :subject:cc:to:from:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=Qvu6/2sv4E/x1bqSzz0GteaUGzARIBIqi6/JMbHq+0s=; b=e8yYuzcCX2L6hT03AOHteG8XHDX/aGjK7xzMmziQg0pd9Fi0Jb/xQlTb4jQ5bdob7y x9uS2F5R4dweCzOSm3DBuDM1cdntuHyotYVKg8DATQK9ghk9bzpjAfeBRRlhp36oMLk3 bgtKySJovW+vqHcWA+7XfpgXva6/SYrUUgHC5A0+wQMU6SEf4NA9UgkUS1jKst4SF2fb NiJ+EU6P7HH/C3iU9wG2yAuxFIEmRST2PXm0aZuoqUNV68q3Fei4OwNIAhStCzgoyYkj rpEg7S42A19ydDAVJA590MXt9y0aTxE8W8jnSa8B46BeTkwavPFzFywY19UwP6xtoKux NBJA== X-Gm-Message-State: AOJu0Yw+EQetqlmOD8jk8FaITTxxPS6HG7yiFh/mnQknFQKxeJzm54En u3+DMuvtVI7Vr9WM4wWtlKxsVV25gKTnYrhP7Uq0bnWyIf1eUDoonOdEfgt2PL4= X-Google-Smtp-Source: AGHT+IFFhmSZ8eRL7XpdHbGlPAb2AF681cQcWm3zoxZWXp4dPHqdDwZIK1LmrmsNpKP4cHyYnixSRw== X-Received: by 2002:a50:ab12:0:b0:57c:61a3:546 with SMTP id 4fb4d7f45d1cf-59eef15e4a7mr905575a12.21.1721120316341; Tue, 16 Jul 2024 01:58:36 -0700 (PDT) Received: from cloudflare.com ([2a09:bac5:5063:2432::39b:77]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-59b2504b80dsm4522002a12.32.2024.07.16.01.58.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 16 Jul 2024 01:58:35 -0700 (PDT) From: Jakub Sitnicki To: Michal Luczaj Cc: netdev@vger.kernel.org, bpf@vger.kernel.org, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, john.fastabend@gmail.com, kuniyu@amazon.com, Rao.Shoaib@oracle.com, cong.wang@bytedance.com Subject: Re: [PATCH bpf v4 4/4] selftest/bpf: Test sockmap redirect for AF_UNIX MSG_OOB In-Reply-To: <20240713200218.2140950-5-mhal@rbox.co> (Michal Luczaj's message of "Sat, 13 Jul 2024 21:41:41 +0200") References: <20240713200218.2140950-1-mhal@rbox.co> <20240713200218.2140950-5-mhal@rbox.co> User-Agent: mu4e 1.12.4; emacs 29.1 Date: Tue, 16 Jul 2024 10:58:34 +0200 Message-ID: <87bk2x90hx.fsf@cloudflare.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain On Sat, Jul 13, 2024 at 09:41 PM +02, Michal Luczaj wrote: > Verify that out-of-band packets are silently dropped before they reach the > redirection logic. > > The idea is to test with a 2 byte long send(). Should a MSG_OOB flag be in > use, only the last byte will be treated as out-of-band. Test fails if > verd_mapfd indicates a wrong number of packets processed (e.g. if OOB > wasn't dropped at the source) or if it was possible to recv() MSG_OOB from > the mapped socket, or if any stale OOB data have been left reachable from > the unmapped socket. > > Signed-off-by: Michal Luczaj > --- Reviewed-by: Jakub Sitnicki