linux-kernel - Re: [PATCH v2 06/15] ima: add parser of digest lists metadata

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Message-ID: <20171118042030.GA13456@mail.hallyn.com>
Date:   Fri, 17 Nov 2017 22:20:30 -0600
From:   "Serge E. Hallyn" <serge@...lyn.com>
To:     Roberto Sassu <roberto.sassu@...wei.com>
Cc:     linux-integrity@...r.kernel.org,
        linux-security-module@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, silviu.vlasceanu@...wei.com
Subject: Re: [PATCH v2 06/15] ima: add parser of digest lists metadata

On Tue, Nov 07, 2017 at 11:37:01AM +0100, Roberto Sassu wrote:
> from a predefined position (/etc/ima/digest_lists/metadata), when rootfs
> becomes available. Digest lists must be loaded before IMA appraisal is in
> enforcing mode.

I'm sure there's a good reason for it, but this seems weird to me.
Why read it from a file on disk instead of accepting it through say
a securityfile write?