[PATCH 2/2] fs: extend the trusted_for syscall to call IMA
Mickaël Salaün
mic at digikod.net
Wed Oct 13 15:26:32 UTC 2021
Nice!
On 13/10/2021 13:01, Mimi Zohar wrote:
> Extend the trusted_for syscall to call the newly defined
> ima_trusted_for hook.
>
> Signed-off-by: Mimi Zohar <zohar at linux.ibm.com>
> ---
> fs/open.c | 3 +++
> include/linux/ima.h | 9 +++++++++
> 2 files changed, 12 insertions(+)
>
> diff --git a/fs/open.c b/fs/open.c
> index c79c138a638c..4d54e2a727e1 100644
> --- a/fs/open.c
> +++ b/fs/open.c
> @@ -585,6 +585,9 @@ SYSCALL_DEFINE3(trusted_for, const int, fd, const enum trusted_for_usage, usage,
> err = inode_permission(file_mnt_user_ns(f.file), inode,
> mask | MAY_ACCESS);
>
> + if (!err)
> + err = ima_trusted_for(f.file, usage);
Could you please implement a new LSM hook instead? Other LSMs may want
to use this information as well.
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