linux-kernel - Re: [PATCH bpf-next v7 2/8] security: Refactor declaration of LSM hooks

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Date:   Fri, 27 Mar 2020 11:28:35 +1100 (AEDT)
From:   James Morris <jmorris@...ei.org>
To:     KP Singh <kpsingh@...omium.org>
cc:     linux-kernel@...r.kernel.org, bpf@...r.kernel.org,
        linux-security-module@...r.kernel.org,
        Brendan Jackman <jackmanb@...gle.com>,
        Florent Revest <revest@...gle.com>,
        Kees Cook <keescook@...omium.org>,
        Casey Schaufler <casey@...aufler-ca.com>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Paul Turner <pjt@...gle.com>, Jann Horn <jannh@...gle.com>,
        Florent Revest <revest@...omium.org>,
        Brendan Jackman <jackmanb@...omium.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH bpf-next v7 2/8] security: Refactor declaration of LSM
 hooks

On Thu, 26 Mar 2020, KP Singh wrote:

> From: KP Singh <kpsingh@...gle.com>
> 
> The information about the different types of LSM hooks is scattered
> in two locations i.e. union security_list_options and
> struct security_hook_heads. Rather than duplicating this information
> even further for BPF_PROG_TYPE_LSM, define all the hooks with the
> LSM_HOOK macro in lsm_hook_defs.h which is then used to generate all
> the data structures required by the LSM framework.
> 
> The LSM hooks are defined as:
> 
>   LSM_HOOK(<return_type>, <default_value>, <hook_name>, args...)
> 
> with <default_value> acccessible in security.c as:
> 
>   LSM_RET_DEFAULT(<hook_name>)
> 
> Signed-off-by: KP Singh <kpsingh@...gle.com>
> Reviewed-by: Brendan Jackman <jackmanb@...gle.com>
> Reviewed-by: Florent Revest <revest@...gle.com>
> Reviewed-by: Kees Cook <keescook@...omium.org>
> Reviewed-by: Casey Schaufler <casey@...aufler-ca.com>


Acked-by: James Morris <jamorris@...ux.microsoft.com>


-- 
James Morris
<jmorris@...ei.org>