linux-kernel - Re: [PATCH v1 6/6] KEYS: measure keys when they are created or updated

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Message-Id: <1571854155.5104.157.camel@linux.ibm.com>
Date:   Wed, 23 Oct 2019 14:09:15 -0400
From:   Mimi Zohar <zohar@...ux.ibm.com>
To:     Lakshmi Ramasubramanian <nramas@...ux.microsoft.com>,
        dhowells@...hat.com, casey@...aufler-ca.com, sashal@...nel.org,
        jamorris@...ux.microsoft.com,
        linux-security-module@...r.kernel.org,
        linux-integrity@...r.kernel.org, linux-kernel@...r.kernel.org,
        keyrings@...r.kernel.org
Subject: Re: [PATCH v1 6/6] KEYS: measure keys when they are created or
 updated

On Tue, 2019-10-22 at 17:18 -0700, Lakshmi Ramasubramanian wrote:
> diff --git a/security/security.c b/security/security.c
> index 250ee2d76406..707a9e7fa94d 100644
> --- a/security/security.c
> +++ b/security/security.c
> @@ -2303,6 +2303,16 @@ int security_key_getsecurity(struct key *key, char **_buffer)
>  	return call_int_hook(key_getsecurity, 0, key, _buffer);
>  }
>  
> +int security_key_create_or_update(struct key *keyring,
> +				  struct key *key,
> +				  const struct cred *cred,
> +				  unsigned long flags,
> +				  bool create)
> +{
> +	return ima_post_key_create_or_update(keyring, key, cred,
> +					     flags, create);
> +}
> +
>  #endif	/* CONFIG_KEYS */

Either the new hook is an LSM and IMA hook, or it is just an IMA hook.
 We don't define a security_ function, if it is just an IMA hook.

Mimi