netdev - Re: [PATCH net-next v2 2/3] net: ethernet: ti: am65-cpsw: enable bc/mc storm prevention support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20211102173840.01f464ec@kicinski-fedora-PC1C0HJN>
Date:   Tue, 2 Nov 2021 17:38:40 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Grygorii Strashko <grygorii.strashko@...com>
Cc:     "David S. Miller" <davem@...emloft.net>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        Kishon Vijay Abraham I <kishon@...com>,
        Vignesh Raghavendra <vigneshr@...com>,
        <linux-omap@...r.kernel.org>, Tony Lindgren <tony@...mide.com>,
        Andrew Lunn <andrew@...n.ch>,
        Vladimir Oltean <vladimir.oltean@....com>
Subject: Re: [PATCH net-next v2 2/3] net: ethernet: ti: am65-cpsw: enable
 bc/mc storm prevention support

On Mon, 1 Nov 2021 19:01:21 +0200 Grygorii Strashko wrote:
>  - 01:00:00:00:00:00 fixed value has to be used for MC packets rate
>    limiting (exact match)

This looks like a stretch, why not use a mask? You can require users to
always install both BC and MC rules if you want to make sure the masked
rule does not match BC.