# Re: \[PATCH v8 14/17\] KEYS: link machine trusted keys to secondary\_trusted\_keys

- From: Darren Kenny \<hidden\>
- Date: 2022-02-14 12:30:03 
- List: linux-security-module
- Page: https://ratatoskr.run/linux-security-module/2022/02/1670185
- Thread: https://ratatoskr.run/keyrings/2021/11/1583494/t.md

```text
On Tuesday, 2021-11-23 at 23:41:21 -05, Eric Snowberg wrote:
> Allow the .machine keyring to be linked to the secondary_trusted_keys.
> After the link is created, keys contained in the .machine keyring will
> automatically be searched when searching secondary_trusted_keys.
>
> Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>

Reviewed-by: Darren Kenny <redacted>

> ---
> v3: Initial version
> v4: Unmodified from v3
> v5: Rename to machine keyring
> v7: Unmodified from v5
> v8: Change patch subject name, code unmodified from v7
> ---
>  certs/system_keyring.c | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/certs/system_keyring.c b/certs/system_keyring.c
> index 07f410918e62..463f676857f0 100644
> --- a/certs/system_keyring.c
> +++ b/certs/system_keyring.c
> @@ -101,6 +101,9 @@ static __init struct key_restriction *get_secondary_restriction(void)
>  void __init set_machine_trusted_keys(struct key *keyring)
>  {
>  	machine_trusted_keys = keyring;
> +
> +	if (key_link(secondary_trusted_keys, machine_trusted_keys) < 0)
> +		panic("Can't link (machine) trusted keyrings\n");
>  }
>  
>  /**
> -- 
> 2.18.4
```