linux-kernel - Re: sysctl, argument parsing, possible bug

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Date:   Tue, 1 Aug 2017 14:54:51 -0700
From:   Cong Wang <xiyou.wangcong@...il.com>
To:     Massimo Sala <massimo.sala.71@...il.com>
Cc:     "Luis R. Rodriguez" <mcgrof@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux Kernel Network Developers <netdev@...r.kernel.org>
Subject: Re: sysctl, argument parsing, possible bug

On Tue, Aug 1, 2017 at 2:34 PM, Massimo Sala <massimo.sala.71@...il.com> wrote:
> Do you confirm it is a sysctl parsing bug ?
>
> Bosybox handles these cases, so I think also standalone sysctl have to.
>
> Or at least someone must update sysctl docs / MAN about this.
>

Maybe, sysctl seems (I never look into it) just to interpret dot as
a separator, unless it reads from the /proc/sys/ directory, it can
not know eth0.100 is actually a netdev name.