security/tpm: Use SPDX identifiers

Also adjust a few comments to follow the style guide.

Change-Id: I22001320f2ce1f0db348e0f7fabc5a65b50ba53e
Signed-off-by: Jacob Garber <jgarber1@ualberta.ca>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41600
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

LICENSES/retained-copyrights.txt

@@ -11,6 +11,7 @@ Copyright 2015 Google Inc.
 Copyright 2015, Google Inc.
 Copyright 2016 Jonathan Neuschäfer <j.neuschaefer@gmx.net>
 Copyright 2016 The Chromium OS Authors. All rights reserved.
+Copyright 2017-2019 Eltan B.V.
 Copyright 2017 Google Inc.
 Copyright 2018 Generated Code
 Copyright 2018-present Facebook, Inc.
@@ -32,6 +33,7 @@ Copyright (c) 2010-2017, The Regents of the University of California
 Copyright (c) 2010, Code Aurora Forum. All rights reserved.
 Copyright (C) 2010 coresystems GmbH
 Copyright (c) 2010 Per Odlund <per.odlund@armagedon.se>
+Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 Copyright (c) 2011-2012, Code Aurora Forum. All rights reserved.
 Copyright (c) 2011-2012 The Linux Foundation. All rights reserved.
 Copyright (c) 2011-2012, The Linux Foundation. All rights reserved.
@@ -79,7 +81,9 @@ Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor E
 Copyright (c) 2016, 2018, The Linux Foundation. All rights reserved.
 Copyright (C) 2016 Google Inc.
 Copyright (c) 2016, The Regents of the University of California (Regents).
+Copyright (C) 2018-2019 Eltan B.V.
 Copyright (C) 2018 - 2019 The Linux Foundation. All rights reserved.
+Copyright (c) 2018 Eltan B.V.
 Copyright (c) 2018, HardenedLinux.
 Copyright (C) 2018, The Linux Foundation.  All rights reserved.
 Copyright Dave Airlie <airlied@redhat.com>

src/security/tpm/tss.h

@@ -1,8 +1,4 @@
-/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
- * Copyright (C) 2018-2019 Eltan B.V.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
+/* SPDX-License-Identifier: BSD-3-Clause */
 
 /*
  * TPM Lightweight Command Library.

src/security/tpm/tss/tcg-1.2/tss.c

@@ -1,9 +1,7 @@
-/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
+/* SPDX-License-Identifier: BSD-3-Clause */
 
-/* A lightweight TPM command library.
+/*
+ * A lightweight TPM command library.
  *
  * The general idea is that TPM commands are array of bytes whose
  * fields are mostly compile-time constant.  The goal is to build much
@@ -75,7 +73,8 @@ static inline int tpm_return_code(const uint8_t *buffer)
 	return tpm_command_code(buffer);
 }
 
-/* Like TlclSendReceive below, but do not retry if NEEDS_SELFTEST or
+/*
+ * Like TlclSendReceive below, but do not retry if NEEDS_SELFTEST or
  * DOING_SELFTEST errors are returned.
  */
 static uint32_t tlcl_send_receive_no_retry(const uint8_t *request,

src/security/tpm/tss/tcg-1.2/tss_internal.h

@@ -1,7 +1,4 @@
-/* Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
+/* SPDX-License-Identifier: BSD-3-Clause */
 
 #ifndef TCG_TSS_INTERNAL_H_
 #define TCG_TSS_INTERNAL_H_

src/security/tpm/tss/tcg-1.2/tss_structures.h

@@ -1,7 +1,6 @@
-/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- *
+/* SPDX-License-Identifier: BSD-3-Clause */
+
+/*
  * Some TPM constants and type definitions for standalone compilation for use
  * in the firmware
  */

src/security/tpm/tss/tcg-2.0/tss.c

@@ -1,9 +1,4 @@
-/*
- * Copyright 2016 The Chromium OS Authors. All rights reserved.
- * Copyright 2017-2019 Eltan B.V.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
+/* SPDX-License-Identifier: BSD-3-Clause */
 
 #include <console/console.h>
 #include <endian.h>

src/security/tpm/tss/tcg-2.0/tss_marshaling.c

@@ -1,9 +1,4 @@
-/*
- * Copyright 2016 The Chromium OS Authors. All rights reserved.
- * Copyright (c) 2018 Eltan B.V.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
+/* SPDX-License-Identifier: BSD-3-Clause */
 
 #include <commonlib/iobuf.h>
 #include <console/console.h>

src/security/tpm/tss/tcg-2.0/tss_marshaling.h

@@ -1,8 +1,5 @@
-/*
- * Copyright 2016 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
+/* SPDX-License-Identifier: BSD-3-Clause */
+
 #ifndef TCG2_TSS_MARSHALING_H_
 #define TCG2_TSS_MARSHALING_H_
 

src/security/tpm/tss/tcg-2.0/tss_structures.h

@@ -1,8 +1,4 @@
-/*
- * Copyright 2016 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
+/* SPDX-License-Identifier: BSD-3-Clause */
 
 #ifndef TCG2_TSS_STRUCTURES_H_
 #define TCG2_TSS_STRUCTURES_H_

src/security/tpm/tss/vendor/cr50/cr50.c

@@ -1,8 +1,4 @@
-/*
- * Copyright 2016 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
+/* SPDX-License-Identifier: BSD-3-Clause */
 
 #include <console/console.h>
 #include <endian.h>

src/security/tpm/tss_errors.h

@@ -1,9 +1,7 @@
-/* Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
+/* SPDX-License-Identifier: BSD-3-Clause */
 
-/* TPM error codes.
+/*
+ * TPM error codes.
  *
  * Copy-pasted and lightly edited from TCG TPM Main Part 2 TPM Structures
  * Version 1.2 Level 2 Revision 103 26 October 2006 Draft.