Re: [RFC/RFT v4 0/5] Add generic trusted keys framework/subsystem

From: Sumit Garg
Date: Thu Aug 15 2019 - 09:03:50 EST


Hi Mimi,

On Wed, 14 Aug 2019 at 18:54, Mimi Zohar <zohar@xxxxxxxxxx> wrote:
>
> Hi Sumit,
>
> On Tue, 2019-08-13 at 13:22 +0530, Sumit Garg wrote:
> > This patch-set is an outcome of discussion here [1]. It has evolved very
> > much since v1 to create, consolidate and generalize trusted keys
> > subsystem.
> >
> > This framework has been tested with trusted keys support provided via TEE
> > but I wasn't able to test it with a TPM device as I don't possess one. It
> > would be really helpful if others could test this patch-set using a TPM
> > device.
>
> With the "CONFIG_HEADER_TEST" and "CONFIG_KERNEL_HEADER_TEST" config
> options enabled, which is required for linux-next, it fails to build.
>

TBH, I wasn't aware about this test feature for headers. It looks like
the header which fails this test is "include/keys/trusted_tpm.h" which
is basically a rename of "include/keys/trusted.h" plus changes in this
patch-set.

And "include/keys/trusted.h" header is already put under blacklist
here: "include/Kbuild +68" as it fails to build. So its that rename
due to which build failure is observed now.

It seems to be an easy fix for this build failure via following changes:

diff --git a/include/keys/trusted_tpm.h b/include/keys/trusted_tpm.h
index 7b593447920b..ca1bec0ef65d 100644
--- a/include/keys/trusted_tpm.h
+++ b/include/keys/trusted_tpm.h
@@ -2,6 +2,9 @@
#ifndef __TRUSTED_TPM_H
#define __TRUSTED_TPM_H

+#include <keys/trusted-type.h>
+#include <linux/tpm_command.h>
+
/* implementation specific TPM constants */
#define MAX_BUF_SIZE 1024
#define TPM_GETRANDOM_SIZE 14

So I will include above changes in this patch-set and also remove
"include/keys/trusted.h" header from the blacklist.

-Sumit

> Mimi