crypto: sha - split sha.h into sha1.h and sha2.h

Currently <crypto/sha.h> contains declarations for both SHA-1 and SHA-2,
and <crypto/sha3.h> contains declarations for SHA-3.

This organization is inconsistent, but more importantly SHA-1 is no
longer considered to be cryptographically secure.  So to the extent
possible, SHA-1 shouldn't be grouped together with any of the other SHA
versions, and usage of it should be phased out.

Therefore, split <crypto/sha.h> into two headers <crypto/sha1.h> and
<crypto/sha2.h>, and make everyone explicitly specify whether they want
the declarations for SHA-1, SHA-2, or both.

This avoids making the SHA-1 declarations visible to files that don't
want anything to do with SHA-1.  It also prepares for potentially moving
sha1.h into a new insecure/ or dangerous/ directory.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

arch/arm/crypto/sha1-ce-glue.c

@@ -7,7 +7,7 @@
 
 #include <crypto/internal/hash.h>
 #include <crypto/internal/simd.h>
-#include <crypto/sha.h>
+#include <crypto/sha1.h>
 #include <crypto/sha1_base.h>
 #include <linux/cpufeature.h>
 #include <linux/crypto.h>

arch/arm/crypto/sha1.h

@@ -3,7 +3,7 @@
 #define ASM_ARM_CRYPTO_SHA1_H
 
 #include <linux/crypto.h>
-#include <crypto/sha.h>
+#include <crypto/sha1.h>
 
 extern int sha1_update_arm(struct shash_desc *desc, const u8 *data,
 			   unsigned int len);

arch/arm/crypto/sha1_glue.c

@@ -15,7 +15,7 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/types.h>
-#include <crypto/sha.h>
+#include <crypto/sha1.h>
 #include <crypto/sha1_base.h>
 #include <asm/byteorder.h>
 

arch/arm/crypto/sha1_neon_glue.c

@@ -19,7 +19,7 @@
 #include <linux/module.h>
 #include <linux/mm.h>
 #include <linux/types.h>
-#include <crypto/sha.h>
+#include <crypto/sha1.h>
 #include <crypto/sha1_base.h>
 #include <asm/neon.h>
 #include <asm/simd.h>

arch/arm/crypto/sha2-ce-glue.c

@@ -7,7 +7,7 @@
 
 #include <crypto/internal/hash.h>
 #include <crypto/internal/simd.h>
-#include <crypto/sha.h>
+#include <crypto/sha2.h>
 #include <crypto/sha256_base.h>
 #include <linux/cpufeature.h>
 #include <linux/crypto.h>

arch/arm/crypto/sha256_glue.c

@@ -17,7 +17,7 @@
 #include <linux/mm.h>
 #include <linux/types.h>
 #include <linux/string.h>
-#include <crypto/sha.h>
+#include <crypto/sha2.h>
 #include <crypto/sha256_base.h>
 #include <asm/simd.h>
 #include <asm/neon.h>

arch/arm/crypto/sha256_neon_glue.c

@@ -13,7 +13,7 @@
 #include <crypto/internal/simd.h>
 #include <linux/types.h>
 #include <linux/string.h>
-#include <crypto/sha.h>
+#include <crypto/sha2.h>
 #include <crypto/sha256_base.h>
 #include <asm/byteorder.h>
 #include <asm/simd.h>

arch/arm/crypto/sha512-glue.c

@@ -6,7 +6,7 @@
  */
 
 #include <crypto/internal/hash.h>
-#include <crypto/sha.h>
+#include <crypto/sha2.h>
 #include <crypto/sha512_base.h>
 #include <linux/crypto.h>
 #include <linux/module.h>

arch/arm/crypto/sha512-neon-glue.c

@@ -7,7 +7,7 @@
 
 #include <crypto/internal/hash.h>
 #include <crypto/internal/simd.h>
-#include <crypto/sha.h>
+#include <crypto/sha2.h>
 #include <crypto/sha512_base.h>
 #include <linux/crypto.h>
 #include <linux/module.h>

arch/arm64/crypto/aes-glue.c

@@ -10,7 +10,7 @@
 #include <asm/simd.h>
 #include <crypto/aes.h>
 #include <crypto/ctr.h>
-#include <crypto/sha.h>
+#include <crypto/sha2.h>
 #include <crypto/internal/hash.h>
 #include <crypto/internal/simd.h>
 #include <crypto/internal/skcipher.h>

arch/arm64/crypto/sha1-ce-glue.c

@@ -10,7 +10,7 @@
 #include <asm/unaligned.h>
 #include <crypto/internal/hash.h>
 #include <crypto/internal/simd.h>
-#include <crypto/sha.h>
+#include <crypto/sha1.h>
 #include <crypto/sha1_base.h>
 #include <linux/cpufeature.h>
 #include <linux/crypto.h>

arch/arm64/crypto/sha2-ce-glue.c

@@ -10,7 +10,7 @@
 #include <asm/unaligned.h>
 #include <crypto/internal/hash.h>
 #include <crypto/internal/simd.h>
-#include <crypto/sha.h>
+#include <crypto/sha2.h>
 #include <crypto/sha256_base.h>
 #include <linux/cpufeature.h>
 #include <linux/crypto.h>

arch/arm64/crypto/sha256-glue.c

@@ -10,7 +10,7 @@
 #include <asm/simd.h>
 #include <crypto/internal/hash.h>
 #include <crypto/internal/simd.h>
-#include <crypto/sha.h>
+#include <crypto/sha2.h>
 #include <crypto/sha256_base.h>
 #include <linux/types.h>
 #include <linux/string.h>

arch/arm64/crypto/sha512-ce-glue.c

@@ -14,7 +14,7 @@
 #include <asm/unaligned.h>
 #include <crypto/internal/hash.h>
 #include <crypto/internal/simd.h>
-#include <crypto/sha.h>
+#include <crypto/sha2.h>
 #include <crypto/sha512_base.h>
 #include <linux/cpufeature.h>
 #include <linux/crypto.h>

arch/arm64/crypto/sha512-glue.c

@@ -8,7 +8,7 @@
 #include <crypto/internal/hash.h>
 #include <linux/types.h>
 #include <linux/string.h>
-#include <crypto/sha.h>
+#include <crypto/sha2.h>
 #include <crypto/sha512_base.h>
 #include <asm/neon.h>
 

arch/mips/cavium-octeon/crypto/octeon-sha1.c

@@ -14,7 +14,7 @@
  */
 
 #include <linux/mm.h>
-#include <crypto/sha.h>
+#include <crypto/sha1.h>
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/module.h>

arch/mips/cavium-octeon/crypto/octeon-sha256.c

@@ -15,7 +15,7 @@
  */
 
 #include <linux/mm.h>
-#include <crypto/sha.h>
+#include <crypto/sha2.h>
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/module.h>

arch/mips/cavium-octeon/crypto/octeon-sha512.c

@@ -14,7 +14,7 @@
  */
 
 #include <linux/mm.h>
-#include <crypto/sha.h>
+#include <crypto/sha2.h>
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/module.h>

arch/powerpc/crypto/sha1-spe-glue.c

@@ -12,7 +12,7 @@
 #include <linux/module.h>
 #include <linux/mm.h>
 #include <linux/types.h>
-#include <crypto/sha.h>
+#include <crypto/sha1.h>
 #include <asm/byteorder.h>
 #include <asm/switch_to.h>
 #include <linux/hardirq.h>

arch/powerpc/crypto/sha1.c

@@ -17,7 +17,7 @@
 #include <linux/module.h>
 #include <linux/mm.h>
 #include <linux/types.h>
-#include <crypto/sha.h>
+#include <crypto/sha1.h>
 #include <asm/byteorder.h>
 
 void powerpc_sha_transform(u32 *state, const u8 *src);