From 3e76b388521ccafddd8ba19d9ab62c8d25e83e0c Mon Sep 17 00:00:00 2001
From: Heiko Stuebner <heiko.stuebner@vrull.eu>
Date: Tue, 4 Jul 2023 18:16:41 +0200
Subject: [PATCH] riscv: Clarify dual-licensing wording for GCM and AES

The original text for the Apache + BSD dual licensing for riscv GCM and AES
perlasm was taken from other openSSL users like crypto/crypto/LPdir_unix.c .

Though Eric pointed out that the dual-licensing text could be read in a
way negating the second license [0] and suggested to clarify the text
even more.

So do this here for all of the GCM, AES and shared riscv.pm .

We already had the agreement of all involved developers for the actual
dual licensing in [0] and [1], so this is only a better clarification
for this.

[0] https://github.com/openssl/openssl/pull/20649#issuecomment-1589558790
[1] https://github.com/openssl/openssl/pull/21018

Signed-off-by: Heiko Stuebner <heiko.stuebner@vrull.eu>

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/21357)
---
 crypto/aes/asm/aes-riscv32-zkn.pl | 13 +++++++------
 crypto/aes/asm/aes-riscv64-zkn.pl | 13 +++++++------
 crypto/modes/asm/ghash-riscv64.pl | 13 +++++++------
 crypto/perlasm/riscv.pm           | 13 +++++++------
 4 files changed, 28 insertions(+), 24 deletions(-)

diff --git a/crypto/aes/asm/aes-riscv32-zkn.pl b/crypto/aes/asm/aes-riscv32-zkn.pl
index 00d5d77359..67ec63230e 100644
--- a/crypto/aes/asm/aes-riscv32-zkn.pl
+++ b/crypto/aes/asm/aes-riscv32-zkn.pl
@@ -1,13 +1,14 @@
 #! /usr/bin/env perl
+# This file is dual-licensed, meaning that you can use it under your
+# choice of either of the following two licenses:
+#
 # Copyright 2022 The OpenSSL Project Authors. All Rights Reserved.
 #
-# Licensed under the Apache License 2.0 (the "License").  You may not use
-# this file except in compliance with the License.  You can obtain a copy
-# in the file LICENSE in the source distribution or at
+# Licensed under the Apache License 2.0 (the "License"). You can obtain
+# a copy in the file LICENSE in the source distribution or at
 # https://www.openssl.org/source/license.html
-
-# This file is dual-licensed and is also available under the following
-# terms:
+#
+# or
 #
 # Copyright (c) 2022, Hongren (Zenithal) Zheng <i@zenithal.me>
 # All rights reserved.
diff --git a/crypto/aes/asm/aes-riscv64-zkn.pl b/crypto/aes/asm/aes-riscv64-zkn.pl
index 5c68242751..a0689ae645 100644
--- a/crypto/aes/asm/aes-riscv64-zkn.pl
+++ b/crypto/aes/asm/aes-riscv64-zkn.pl
@@ -1,13 +1,14 @@
 #! /usr/bin/env perl
+# This file is dual-licensed, meaning that you can use it under your
+# choice of either of the following two licenses:
+#
 # Copyright 2022 The OpenSSL Project Authors. All Rights Reserved.
 #
-# Licensed under the Apache License 2.0 (the "License").  You may not use
-# this file except in compliance with the License.  You can obtain a copy
-# in the file LICENSE in the source distribution or at
+# Licensed under the Apache License 2.0 (the "License"). You can obtain
+# a copy in the file LICENSE in the source distribution or at
 # https://www.openssl.org/source/license.html
-
-# This file is dual-licensed and is also available under the following
-# terms:
+#
+# or
 #
 # Copyright (c) 2022, Hongren (Zenithal) Zheng <i@zenithal.me>
 # All rights reserved.
diff --git a/crypto/modes/asm/ghash-riscv64.pl b/crypto/modes/asm/ghash-riscv64.pl
index 8ec323d3bc..2ed4740b49 100644
--- a/crypto/modes/asm/ghash-riscv64.pl
+++ b/crypto/modes/asm/ghash-riscv64.pl
@@ -1,13 +1,14 @@
 #! /usr/bin/env perl
+# This file is dual-licensed, meaning that you can use it under your
+# choice of either of the following two licenses:
+#
 # Copyright 2022 The OpenSSL Project Authors. All Rights Reserved.
 #
-# Licensed under the Apache License 2.0 (the "License").  You may not use
-# this file except in compliance with the License.  You can obtain a copy
-# in the file LICENSE in the source distribution or at
+# Licensed under the Apache License 2.0 (the "License"). You can obtain
+# a copy in the file LICENSE in the source distribution or at
 # https://www.openssl.org/source/license.html
-
-# This file is dual-licensed and is also available under the following
-# terms:
+#
+# or
 #
 # Copyright (c) 2023, Christoph Müllner <christoph.muellner@vrull.eu>
 # All rights reserved.
diff --git a/crypto/perlasm/riscv.pm b/crypto/perlasm/riscv.pm
index 85d0af7d9a..90540b7dde 100644
--- a/crypto/perlasm/riscv.pm
+++ b/crypto/perlasm/riscv.pm
@@ -1,13 +1,14 @@
 #! /usr/bin/env perl
+# This file is dual-licensed, meaning that you can use it under your
+# choice of either of the following two licenses:
+#
 # Copyright 2023 The OpenSSL Project Authors. All Rights Reserved.
 #
-# Licensed under the Apache License 2.0 (the "License").  You may not use
-# this file except in compliance with the License.  You can obtain a copy
-# in the file LICENSE in the source distribution or at
+# Licensed under the Apache License 2.0 (the "License"). You can obtain
+# a copy in the file LICENSE in the source distribution or at
 # https://www.openssl.org/source/license.html
-
-# This file is dual-licensed and is also available under the following
-# terms:
+#
+# or
 #
 # Copyright (c) 2023, Christoph Müllner <christoph.muellner@vrull.eu>
 # All rights reserved.
-- 
2.39.2

