Received: by 2002:a25:7ec1:0:0:0:0:0 with SMTP id z184csp2757526ybc; Mon, 18 Nov 2019 04:16:39 -0800 (PST) X-Google-Smtp-Source: APXvYqw4W0MJosBRLlr1d/kczKuFSgdhTv8ndh2On2eg2Miojs8ZiJuQ/9NPNq5PvUqUnEirz3Cp X-Received: by 2002:adf:f20f:: with SMTP id p15mr24741468wro.370.1574079399109; Mon, 18 Nov 2019 04:16:39 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1574079399; cv=none; d=google.com; s=arc-20160816; b=nSUAV+rM2QopuCQBWFcq6xWoLPuKdcMs/YF22i+J69m7pTYdfsllzifWvZdJUhhn1/ IYf5HnXoP3o7WfkhlknSvscYPBzTtykMhZNrs6qYJn3nMm8HLvS6qn4DbWBP0fPCmuUI OOqGsOtSnztNI0goAurmUkG3L7m3eLiR+QKvIlX7siAXE1ijE0zzPdMMpz2XJre6pY4E SZAeJgqF/Pke67hUaabXEc5IRFeqiS7FRnsF5eH5KAenpSRkRj2e+GeFBXfBqZVuAiKz +4tEv2sxayMOtf1bxbv7/pfsTP2iXR1KvlCc8BGKleJk1t+hLrU3GGwwM/kuCIAL0MaH TLnQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :user-agent:references:in-reply-to:date:cc:to:from:subject :message-id; bh=p240Zo7eTk7hGXeIEfVx60vrMqfWn/M+sgfD7rRD03U=; b=itAnQwV7acLKZsWB0F3r+kgbr5Bh+704FWNEOMQ82ie9vlrwfcU1v0hbKb/3+DJEQT nBP3jkQw3Kg7V98O3TEe+E1WFSesBFi4wGVFx8xMsE6tzQOYuLJO1CdHbHU5sK6OEe04 tveZrK4xMJbHv+/dCoIgl8p5ZXH1JsDAOLGLTb0mwbEsnCg0Zs98sPNbICjCclmRgMQL 7236jyBVRqUdKkBHqVaHY2AIXB6S6jIqjTor0saIPBrYWKYMP5eftQ82HgnIK89ilXxZ Mc3EzcKL3kfRJWbrkAetPSx5iDBY2s/xXL06MyEW/NGHY7PDH1dXruRMFKhvryl+7Qyb Y3Sg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-wireless-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-wireless-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id f21si12906825edf.277.2019.11.18.04.16.06; Mon, 18 Nov 2019 04:16:39 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-wireless-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-wireless-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-wireless-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726761AbfKRMPi (ORCPT + 99 others); Mon, 18 Nov 2019 07:15:38 -0500 Received: from s3.sipsolutions.net ([144.76.43.62]:33360 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726563AbfKRMPi (ORCPT ); Mon, 18 Nov 2019 07:15:38 -0500 Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.92.3) (envelope-from ) id 1iWfwM-00034g-SE; Mon, 18 Nov 2019 13:15:35 +0100 Message-ID: Subject: Re: [PATCH v4] mac80211: Drop the packets whose source or destination mac address is empty From: Johannes Berg To: Toke =?ISO-8859-1?Q?H=F8iland-J=F8rgensen?= , Ming Chen Cc: linux-wireless@vger.kernel.org, Ming Chen Date: Mon, 18 Nov 2019 13:15:33 +0100 In-Reply-To: <87blt9ctd4.fsf@toke.dk> References: <20191116060833.45752-1-ming.chen@watchguard.com> <87blt9ctd4.fsf@toke.dk> Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.30.5 (3.30.5-1.fc29) MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org On Mon, 2019-11-18 at 12:32 +0100, Toke Høiland-Jørgensen wrote: > > Dropping this kind of error packet before it goes into the driver, > > should be the right direction. > > So I still wonder why this happens from higher up in the stack. If > there's a legitimate reason, maybe dropping the packet is not the right > thing? And if there is *no* legitimate reason, maybe the packet should > be dropped higher up in the stack instead? Agree, this is really weird, it'd be good to know the actual packet this happens with. Don't think I've ever seen this. johannes