Re: [PATCH v3 0/4] IMA: verify measurement of certificate imported into a keyring

Petr Vorel
2020-08-17T19:52:47Z

> On Mon, 2020-08-17 at 15:09 +0200, Petr Vorel wrote:
> > Hi Mimi, Lakshmi,

> > changes v2->v3:
> > fixed regression in my third commit.
> > (please verify it on installed LTP, or at least run make install in
> > testcases/kernel/security/integrity/ima/datafiles/ima_keys/)

> I did, but nothing changed. I probably need to set an environment
> variable.
You also need to set LTPROOT (prefix, e.g. /opt/ltp).

> After building and installing LTP, it's finding the file, but some of
> the issues still exist:

> ima_keys 1 TINFO: $TMPDIR is on tmpfs => run on loop device
> ima_keys 1 TINFO: Formatting /dev/loop0 with ext3 extra opts=''
> ima_keys 1 TINFO: verify key measurement for keyrings and templates specified in IMA policy
> grep: Unmatched ( or \(
This should be fixed by v3 (fixed by for loop and sort -u)
https://patchwork.ozlabs.org/project/ltp/patch/20200817130916.27634-5-pvorel@suse.cz/
But I'll test it tomorrow with your IMA policy.

Thank you for testing!

Kind regards,
Petr

> ima_keys 1 TPASS: specified keyrings were measured correctly
> ima_keys 2 TINFO: verify measurement of certificate imported into a keyring
> keyctl_session_to_parent: Operation not permitted
> ima_keys 2 TPASS: logged certificate matches the original

> IMA policy:
> measure func=KEY_CHECK keyrings=.ima|.evm|.builtin_trusted_keys|.blacklist|key_import_test template=ima-buf
> measure func=KEY_CHECK keyrings=key_import_test template=ima-buf

> Mimi