u-boot.git/lib/tpm.c, branch v2017.07

tpm: Fix comparison of unsigned expression warning

2017-05-12T12:37:40+00:00

The function tpm_xfer returns int so make 'err' be int rather than
uint32_t so that we can catch an error condition.  Reported by
clang-3.8.

Signed-off-by: Tom Rini

tpm: Add function to load keys via their parent's SHA1 hash

2017-03-26T19:22:58+00:00

If we want to load a key into a TPM, we need to know the designated parent
key's handle, so that the TPM is able to insert the key at the correct place in
the key hierarchy.

However, if we want to load a key whose designated parent key we also
previously loaded ourselves, we first need to memorize this parent key's handle
(since the handles for the key are chosen at random when they are inserted into
the TPM). If we are, however, unable to do so, for example if the parent key is
loaded into the TPM during production, and its child key during the actual
boot, we must find a different mechanism to identify the parent key.

To solve this problem, we add a function that allows U-Boot to load a key into
the TPM using their designated parent key's SHA1 hash, and the corresponding
auth data.

Signed-off-by: Mario Six 
Reviewed-by: Simon Glass

lib: tpm: Add command to flush resources

2017-02-01T08:02:57+00:00

This patch adds a function to the TPM library, which allows U-Boot to
flush resources, e.g. keys, from the TPM.

Signed-off-by: Mario Six 
Reviewed-by: Stefan Roese 
Reviewed-by: Simon Glass 
Signed-off-by: Stefan Roese

dm: Use uclass_first_device_err() where it is useful

2016-03-14T21:34:50+00:00

Use this new function in places where it simplifies the code.

Signed-off-by: Simon Glass

tpm: Fix fault in case CONFIG_DM_TPM is set without any TPM

2016-01-29T04:01:22+00:00

In case CONFIG_DM_TPM was set without any TPM chipset configured a fault
was generated (NULL pointer access).

Reviewed-by: Simon Glass 
Signed-off-by: Christophe Ricard

dm: tpm: Remove every compilation switch for TPM driver model

2015-10-23T15:42:28+00:00

As every TPM drivers support UCLASS_TPM, we can only rely on DM_TPM
functions.

This simplify a bit the code.

Signed-off-by: Christophe Ricard 
Reviewed-by: Tom Rini 
Acked-by: Simon Glass

tpm: Add functions to access flags and permissions

2015-08-31T13:57:29+00:00

Add a few new functions which will be used by the test command in a future
patch.

Signed-off-by: Simon Glass 
Acked-by: Christophe Ricard
Reviewed-by: Heiko Schocher

dm: tpm: Convert the TPM command and library to driver model

2015-08-31T13:57:28+00:00

Add driver model support to the TPM command and the TPM library. Both
support only a single TPM at present.

Signed-off-by: Simon Glass 
Acked-by: Christophe Ricard
Reviewed-by: Heiko Schocher

includes: move openssl headers to include/u-boot

2014-06-19T15:19:04+00:00

commit 18b06652cd "tools: include u-boot version of sha256.h"
unconditionally forced the sha256.h from u-boot to be used
for tools instead of the host version. This is fragile though
as it will also include the host version. Therefore move it
to include/u-boot to join u-boot/md5.h etc which were renamed
for the same reason.

cc: Simon Glass 
Signed-off-by: Jeroen Hofstee

Add GPL-2.0+ SPDX-License-Identifier to source files

2013-07-24T13:44:38+00:00

Signed-off-by: Wolfgang Denk 
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini