linux-kernel - Re: [PATCH v10 05/27] ima: Define ima_namespace struct and start moving variables into it

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Message-ID: <6b81ba48-af34-71ef-8ee7-9526e7f3b073@linux.ibm.com>
Date:   Wed, 16 Feb 2022 15:25:49 -0500
From:   Stefan Berger <stefanb@...ux.ibm.com>
To:     Mimi Zohar <zohar@...ux.ibm.com>, linux-integrity@...r.kernel.org
Cc:     serge@...lyn.com, christian.brauner@...ntu.com,
        containers@...ts.linux.dev, dmitry.kasatkin@...il.com,
        ebiederm@...ssion.com, krzysztof.struczynski@...wei.com,
        roberto.sassu@...wei.com, mpeters@...hat.com, lhinds@...hat.com,
        lsturman@...hat.com, puiterwi@...hat.com, jejb@...ux.ibm.com,
        jamjoom@...ibm.com, linux-kernel@...r.kernel.org,
        paul@...l-moore.com, rgb@...hat.com,
        linux-security-module@...r.kernel.org, jmorris@...ei.org,
        Christian Brauner <brauner@...nel.org>
Subject: Re: [PATCH v10 05/27] ima: Define ima_namespace struct and start
 moving variables into it


On 2/16/22 09:41, Mimi Zohar wrote:
> On Tue, 2022-02-01 at 15:37 -0500, Stefan Berger wrote:
>> Define the ima_namespace structure and the ima_namespace variable
>> init_ima_ns for the host's IMA namespace. Implement basic functions for
>> namespacing support.
> Implement the basic functions - ima_ns_init()  and ima_init_namespace()
> - for namespacing support.
>
>> Move variables related to the IMA policy into the ima_namespace. This way
>> the IMA policy of an IMA namespace can be set and displayed using a
>> front-end like securityfs.
>> Implement ima_ns_from_file() to get the IMA namespace via the user
>> namespace of the securityfs superblock that a file belongs to.
> Currently, ima_ns_from_file() doesn't exist in this patch.
Ah, left-over from previous version. Remove.
>
>> To get the current ima_namespace use &init_ima_ns when a function
>> that is related to a policy rule is called.
> In preparation for IMA namespacing, update the existing functions to
> pass the ima_namespace struct.  For now, ...
>
>>
>> Signed-off-by: Stefan Berger <stefanb@...ux.ibm.com>
>> Acked-by: Christian Brauner <brauner@...nel.org>
> After addressing the one inline comment,
Done.
> 	Reviewed-by: Mimi Zohar <zohar@...ux.ibm.com>

Thanks.