[PATCH v5 07/12] KEYS: Introduce link restriction to include builtin, secondary and machine keys

[Mimi Zohar]

Hi Eric,

The subject line above is too long.   According to
Documentation/process/submitting-patches.rst the "the ``summary`` must
be no more than 70-75 characters".

On Tue, 2021-09-07 at 12:01 -0400, Eric Snowberg wrote:
> Introduce a new link restriction that includes the trusted builtin,
> secondary and machine keys. The restriction is based on the key to be added
> being vouched for by a key in any of these three keyrings.
> 
> Suggested-by: Mimi Zohar <zohar at linux.ibm.com>
> Signed-off-by: Eric Snowberg <eric.snowberg at oracle.com>
> ---
> v3: Initial version
> v4: moved code under CONFIG_INTEGRITY_MOK_KEYRING
> v5: Rename to machine keyring
> ---
>  certs/system_keyring.c        | 23 +++++++++++++++++++++++
>  include/keys/system_keyring.h |  6 ++++++
>  2 files changed, 29 insertions(+)
> 
> diff --git a/certs/system_keyring.c b/certs/system_keyring.c
> index 08ea542c8096..955bd57815f4 100644
> --- a/certs/system_keyring.c
> +++ b/certs/system_keyring.c
> @@ -99,6 +99,29 @@ void __init set_machine_trusted_keys(struct key *keyring)
>  {
>  	machine_trusted_keys = keyring;
>  }
> +
> +/**
> + * restrict_link_by_builtin_secondary_and_ca_trusted

Sorry for the patch churn.  With the keyring name change to ".machine",
the restriction name should also reflect this change.

thanks,

Mimi