linux-kernel - Re: [RFC PATCH v11 15/19] fsverity: consume builtin signature via LSM hook

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Message-ID: <d95c06e5-60e7-4adb-896f-5c99e7f4db52@linux.microsoft.com>
Date:   Wed, 4 Oct 2023 19:49:13 -0700
From:   Fan Wu <wufan@...ux.microsoft.com>
To:     Eric Biggers <ebiggers@...nel.org>
Cc:     corbet@....net, zohar@...ux.ibm.com, jmorris@...ei.org,
        serge@...lyn.com, tytso@....edu, axboe@...nel.dk, agk@...hat.com,
        snitzer@...nel.org, eparis@...hat.com, paul@...l-moore.com,
        linux-doc@...r.kernel.org, linux-integrity@...r.kernel.org,
        linux-security-module@...r.kernel.org,
        linux-fscrypt@...r.kernel.org, linux-block@...r.kernel.org,
        dm-devel@...hat.com, audit@...r.kernel.org,
        roberto.sassu@...wei.com, linux-kernel@...r.kernel.org,
        Deven Bowers <deven.desai@...ux.microsoft.com>
Subject: Re: [RFC PATCH v11 15/19] fsverity: consume builtin signature via LSM
 hook



On 10/4/2023 7:27 PM, Eric Biggers wrote:
> On Wed, Oct 04, 2023 at 03:09:42PM -0700, Fan Wu wrote:
>> +#ifdef CONFIG_FS_VERITY_BUILTIN_SIGNATURES
>> +static int fsverity_inode_setsecurity(struct inode *inode,
>> +				      struct fsverity_descriptor *desc)
>> +{
>> +	return security_inode_setsecurity(inode, FS_VERITY_INODE_SEC_NAME,
>> +					  desc->signature,
>> +					  le32_to_cpu(desc->sig_size), 0);
>> +}
> 
> Why isn't the type of the second argument 'const struct fsverity_descriptor *'?
> 
> - Eric

Thanks for the suggestion. I agree that adding 'const' here is a better 
approach. I will update this in the next version.

-Fan