linux-kernel - Re: [PATCH v8 3/5] KEYS: Call the IMA hook to measure keys

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Date:   Mon, 18 Nov 2019 17:58:30 -0800
From:   Lakshmi Ramasubramanian <nramas@...ux.microsoft.com>
To:     Eric Snowberg <eric.snowberg@...cle.com>
Cc:     zohar@...ux.ibm.com, linux-integrity@...r.kernel.org,
        linux-kernel@...r.kernel.org, keyrings@...r.kernel.org
Subject: Re: [PATCH v8 3/5] KEYS: Call the IMA hook to measure keys

On 11/18/19 5:18 PM, Eric Snowberg wrote:

>> +#ifdef CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE
>> +extern void ima_post_key_create_or_update(struct key *keyring,
>> +					  struct key *key,
>> +					  unsigned long flags, bool create);
>> +#endif
> 
> The extern void ima_post_key_create_or_update will only be defined if CONFIG_IMA=y.
> 

> 
> This will cause a compile error if CONFIG_IMA is not defined and CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE=y.
> 
> security/keys/key.c: In function 'key_create_or_update':
> security/keys/key.c:940:2: error: implicit declaration of function 'ima_post_key_create_or_update'; did you mean 'key_create_or_update'? [-Werror=implicit-function-declaration]
>    ima_post_key_create_or_update(keyring, key, flags, true);
>    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>    key_create_or_update
> cc1: some warnings being treated as errors

You are right - Thanks for catching this error.
I'll fix this and send an update.

thanks,
  -lakshmi