diff options
| author |   Roberto Sassu <roberto.sassu@huawei.com> | 2021-05-14 17:27:52 +0200 |
|---|---|---|
| committer |   Mimi Zohar <zohar@linux.ibm.com> | 2021-06-01 12:30:51 -0400 |
| commit | 026d7fc92a9d629630779c999fe49ecae93f9d63 (patch) | |
| tree | e54222a44f2739b05f274e68ed87a84d86e75e97 /security/integrity/ima/ima_template.c | |
| parent | ima: Allow imasig requirement to be satisfied by EVM portable signatures (diff) | |
| download | linux-dev-026d7fc92a9d629630779c999fe49ecae93f9d63.tar.xz linux-dev-026d7fc92a9d629630779c999fe49ecae93f9d63.zip | |
ima: Introduce template field evmsig and write to field sig as fallback
With the patch to accept EVM portable signatures when the
appraise_type=imasig requirement is specified in the policy, appraisal can
be successfully done even if the file does not have an IMA signature.
However, remote attestation would not see that a different signature type
was used, as only IMA signatures can be included in the measurement list.
This patch solves the issue by introducing the new template field 'evmsig'
to show EVM portable signatures and by including its value in the existing
field 'sig' if the IMA signature is not found.
Suggested-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Diffstat (limited to 'security/integrity/ima/ima_template.c')
| -rw-r--r-- | security/integrity/ima/ima_template.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/security/integrity/ima/ima_template.c b/security/integrity/ima/ima_template.c index 4e081e650047..7a60848c04a5 100644 --- a/security/integrity/ima/ima_template.c +++ b/security/integrity/ima/ima_template.c @@ -45,6 +45,8 @@ static const struct ima_template_field supported_fields[] = { .field_show = ima_show_template_digest_ng}, {.field_id = "modsig", .field_init = ima_eventmodsig_init, .field_show = ima_show_template_sig}, + {.field_id = "evmsig", .field_init = ima_eventevmsig_init, + .field_show = ima_show_template_sig}, }; /* |