netdev - Re: [PATCH] xfrm: redact SA secret with lockdown confidentiality

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Message-ID: <20201117164607.GB19892@moon.secunet.de>
Date:   Tue, 17 Nov 2020 17:46:07 +0100
From:   Antony Antony <antony.antony@...unet.com>
To:     Steffen Klassert <steffen.klassert@...unet.com>
CC:     Antony Antony <antony.antony@...unet.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        "Jakub Kicinski" <kuba@...nel.org>, <netdev@...r.kernel.org>,
        <linux-security-module@...r.kernel.org>,
        Antony Antony <antony@...nome.org>,
        Stephan Mueller <smueller@...onox.de>
Subject: Re: [PATCH] xfrm: redact SA secret with lockdown confidentiality

On Sat, Oct 31, 2020 at 11:49:11 +0100, Steffen Klassert wrote:
> On Fri, Oct 16, 2020 at 03:36:12PM +0200, Antony Antony wrote:
> > redact XFRM SA secret in the netlink response to xfrm_get_sa()
> > or dumpall sa.
> > Enable this at build time and set kernel lockdown to confidentiality.
> 
> Wouldn't it be better to enable is at boot or runtime? This defaults
> to 'No' at build time, so distibutions will not compile it in. That
> means that noone who uses a kernel that comes with a Linux distribution
> can use that.

It is a good idea. I will send new version soon.

thanks,
-antony