netdev - Re: [PATCH net-next 2/2] net: dsa: dsa2: Add basic support of devlink

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] [day] [month] [year] [list]

Message-ID: <20170330061706.GA2010@nanopsycho>
Date:   Thu, 30 Mar 2017 08:17:06 +0200
From:   Jiri Pirko <jiri@...nulli.us>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        David Miller <davem@...emloft.net>,
        netdev <netdev@...r.kernel.org>, sfrench@...ba.org,
        linux-cifs@...r.kernel.org,
        Vivien Didelot <vivien.didelot@...oirfairelinux.com>
Subject: Re: [PATCH net-next 2/2] net: dsa: dsa2: Add basic support of devlink

Wed, Mar 29, 2017 at 07:36:24PM CEST, andrew@...n.ch wrote:
>> Tangential question: we do not currently report to user space what kind
>> of switch tagging protocol is used (DSA, eDSA etc.) I was going to add a
>> sysfs attribute for that under the switch device's directory, but maybe
>> devlink would be more appropriate for that?
>
>We don't report it. What are you thinking you want to do with this
>information?
>
>I suppose it might be possible to teach libpcap/tcpdump about it, so
>it can slide in an additional dissector. EDSA you can detect anyway,
>since it uses a well know Ethertype. tcpdump already supports
>this. But the other tag protocols cannot be detected.
>
>devlink does seem like a good candidate for this, make it part of the
>port type.

I agree this could go out via devlink. Not sure exactly what attr.
Certainly some new.


>
>     Andrew