linux-kernel - Re: [PATCH v26 07/25] LSM: Use lsmblob in security_secctx_to

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Date:   Fri, 14 May 2021 12:03:50 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Casey Schaufler <casey@...aufler-ca.com>
Cc:     casey.schaufler@...el.com, jmorris@...ei.org,
        linux-security-module@...r.kernel.org, selinux@...r.kernel.org,
        linux-audit@...hat.com, john.johansen@...onical.com,
        penguin-kernel@...ove.sakura.ne.jp, paul@...l-moore.com,
        sds@...ho.nsa.gov, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, netfilter-devel@...r.kernel.org
Subject: Re: [PATCH v26 07/25] LSM: Use lsmblob in security_secctx_to_secid

On Thu, May 13, 2021 at 01:07:49PM -0700, Casey Schaufler wrote:
> Change the security_secctx_to_secid interface to use a lsmblob
> structure in place of the single u32 secid in support of
> module stacking. Change its callers to do the same.
> 
> The security module hook is unchanged, still passing back a secid.
> The infrastructure passes the correct entry from the lsmblob.
> 
> Signed-off-by: Casey Schaufler <casey@...aufler-ca.com>

This looks like sane refactoring into the new blob type.

Reviewed-by: Kees Cook <keescook@...omium.org>

-- 
Kees Cook