From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001
From: André Fabian Silva Delgado <emulatorman@parabola.nu>
Date: Wed, 5 Aug 2015 17:04:01 -0300
Subject: Initial import

---
 arch/arm/crypto/sha1_glue.c | 95 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 95 insertions(+)
 create mode 100644 arch/arm/crypto/sha1_glue.c

(limited to 'arch/arm/crypto/sha1_glue.c')

diff --git a/arch/arm/crypto/sha1_glue.c b/arch/arm/crypto/sha1_glue.c
new file mode 100644
index 000000000..6fc73bf87
--- /dev/null
+++ b/arch/arm/crypto/sha1_glue.c
@@ -0,0 +1,95 @@
+/*
+ * Cryptographic API.
+ * Glue code for the SHA1 Secure Hash Algorithm assembler implementation
+ *
+ * This file is based on sha1_generic.c and sha1_ssse3_glue.c
+ *
+ * Copyright (c) Alan Smithee.
+ * Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk>
+ * Copyright (c) Jean-Francois Dive <jef@linuxbe.org>
+ * Copyright (c) Mathias Krause <minipli@googlemail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ */
+
+#include <crypto/internal/hash.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/cryptohash.h>
+#include <linux/types.h>
+#include <crypto/sha.h>
+#include <crypto/sha1_base.h>
+#include <asm/byteorder.h>
+
+#include "sha1.h"
+
+asmlinkage void sha1_block_data_order(u32 *digest,
+		const unsigned char *data, unsigned int rounds);
+
+int sha1_update_arm(struct shash_desc *desc, const u8 *data,
+		    unsigned int len)
+{
+	/* make sure casting to sha1_block_fn() is safe */
+	BUILD_BUG_ON(offsetof(struct sha1_state, state) != 0);
+
+	return sha1_base_do_update(desc, data, len,
+				   (sha1_block_fn *)sha1_block_data_order);
+}
+EXPORT_SYMBOL_GPL(sha1_update_arm);
+
+static int sha1_final(struct shash_desc *desc, u8 *out)
+{
+	sha1_base_do_finalize(desc, (sha1_block_fn *)sha1_block_data_order);
+	return sha1_base_finish(desc, out);
+}
+
+int sha1_finup_arm(struct shash_desc *desc, const u8 *data,
+		   unsigned int len, u8 *out)
+{
+	sha1_base_do_update(desc, data, len,
+			    (sha1_block_fn *)sha1_block_data_order);
+	return sha1_final(desc, out);
+}
+EXPORT_SYMBOL_GPL(sha1_finup_arm);
+
+static struct shash_alg alg = {
+	.digestsize	=	SHA1_DIGEST_SIZE,
+	.init		=	sha1_base_init,
+	.update		=	sha1_update_arm,
+	.final		=	sha1_final,
+	.finup		=	sha1_finup_arm,
+	.descsize	=	sizeof(struct sha1_state),
+	.base		=	{
+		.cra_name	=	"sha1",
+		.cra_driver_name=	"sha1-asm",
+		.cra_priority	=	150,
+		.cra_flags	=	CRYPTO_ALG_TYPE_SHASH,
+		.cra_blocksize	=	SHA1_BLOCK_SIZE,
+		.cra_module	=	THIS_MODULE,
+	}
+};
+
+
+static int __init sha1_mod_init(void)
+{
+	return crypto_register_shash(&alg);
+}
+
+
+static void __exit sha1_mod_fini(void)
+{
+	crypto_unregister_shash(&alg);
+}
+
+
+module_init(sha1_mod_init);
+module_exit(sha1_mod_fini);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm (ARM)");
+MODULE_ALIAS_CRYPTO("sha1");
+MODULE_AUTHOR("David McCullough <ucdevel@gmail.com>");
-- 
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