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authorHans de Goede <hdegoede@redhat.com>2019-08-17 17:24:31 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2019-08-22 07:57:35 +0300
commitad767ee858b38af634c957a792cb001d54a7b981 (patch)
treeabc728ea04dca8c72d9529fbde034496d7aa5a28 /include/crypto
parent1a01333d313447f0cdfcc2882ea3afe387a24be0 (diff)
downloadlinux-ad767ee858b38af634c957a792cb001d54a7b981.tar.xz
crypto: sha256 - Move lib/sha256.c to lib/crypto
Generic crypto implementations belong under lib/crypto not directly in lib, likewise the header should be in include/crypto, not include/linux. Note that the code in lib/crypto/sha256.c is not yet available for generic use after this commit, it is still only used by the s390 and x86 purgatory code. Making it suitable for generic use is done in further patches in this series. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/crypto')
-rw-r--r--include/crypto/sha256.h28
1 files changed, 28 insertions, 0 deletions
diff --git a/include/crypto/sha256.h b/include/crypto/sha256.h
new file mode 100644
index 000000000000..b1f9c6781082
--- /dev/null
+++ b/include/crypto/sha256.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2014 Red Hat Inc.
+ *
+ * Author: Vivek Goyal <vgoyal@redhat.com>
+ */
+
+#ifndef SHA256_H
+#define SHA256_H
+
+#include <linux/types.h>
+#include <crypto/sha.h>
+
+/*
+ * Stand-alone implementation of the SHA256 algorithm. It is designed to
+ * have as little dependencies as possible so it can be used in the
+ * kexec_file purgatory. In other cases you should use the implementation in
+ * crypto/.
+ *
+ * For details see lib/crypto/sha256.c
+ */
+
+extern int sha256_init(struct sha256_state *sctx);
+extern int sha256_update(struct sha256_state *sctx, const u8 *input,
+ unsigned int length);
+extern int sha256_final(struct sha256_state *sctx, u8 *hash);
+
+#endif /* SHA256_H */