gost28147: move gost params to internal interface

gost28147_param instances were never a part of stable release, so move
them to internal header.
Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>

Makefile.in

@@ -207,7 +207,7 @@ HEADERS = aes.h arcfour.h arctwo.h asn1.h blowfish.h \
 	  cbc.h ccm.h cfb.h chacha.h chacha-poly1305.h ctr.h \
 	  curve25519.h curve448.h des.h dsa.h dsa-compat.h eax.h \
 	  ecc-curve.h ecc.h ecdsa.h eddsa.h \
-	  gcm.h gost28147.h gostdsa.h gosthash94.h hmac.h \
+	  gcm.h gostdsa.h gosthash94.h hmac.h \
 	  knuth-lfib.h hkdf.h \
 	  macros.h \
 	  cmac.h siv-cmac.h \

gost28147-internal.h

@@ -34,7 +34,19 @@
 #ifndef NETTLE_GOST28147_INTERNAL_H_INCLUDED
 #define NETTLE_GOST28147_INTERNAL_H_INCLUDED
 
+#include <stdint.h>
+
 #define _gost28147_encrypt_block _nettle_gost28147_encrypt_block
+#define _gost28147_param_test_3411 _nettle_gost28147_param_test_3411
+#define _gost28147_param_CryptoPro_3411 _nettle_gost28147_param_CryptoPro_3411
+
+extern const struct gost28147_param _gost28147_param_test_3411;
+extern const struct gost28147_param _gost28147_param_CryptoPro_3411;
+
+struct gost28147_param
+{
+  uint32_t sbox[4][256];
+};
 
 void _gost28147_encrypt_block (const uint32_t *key, const uint32_t sbox[4][256],
 			       const uint32_t *in, uint32_t *out);

gost28147.c

@@ -33,11 +33,10 @@
 #endif
 
 #include "macros.h"
-#include "gost28147.h"
 #include "gost28147-internal.h"
 
 /* pre-initialized GOST lookup tables based on rotated S-Box */
-const struct gost28147_param gost28147_param_test_3411 =
+const struct gost28147_param _gost28147_param_test_3411 =
 {
   {
     { /* 0 */
@@ -304,7 +303,7 @@ const struct gost28147_param gost28147_param_test_3411 =
   }
 };
 
-const struct gost28147_param gost28147_param_CryptoPro_3411 =
+const struct gost28147_param _gost28147_param_CryptoPro_3411 =
 {
   {
     { /* 0 */

gost28147.h

-/* gost28147.h
-
-   The GOST 28147-89 cipher function, described in RFC 5831.
-
-   Copyright (C) 2019 Dmitry Eremin-Solenikov
-
-   This file is part of GNU Nettle.
-
-   GNU Nettle is free software: you can redistribute it and/or
-   modify it under the terms of either:
-
-     * the GNU Lesser General Public License as published by the Free
-       Software Foundation; either version 3 of the License, or (at your
-       option) any later version.
-
-   or
-
-     * 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.
-
-   or both in parallel, as here.
-
-   GNU Nettle is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   General Public License for more details.
-
-   You should have received copies of the GNU General Public License and
-   the GNU Lesser General Public License along with this program.  If
-   not, see http://www.gnu.org/licenses/.
-*/
-
-#ifndef NETTLE_GOST28147_H_INCLUDED
-#define NETTLE_GOST28147_H_INCLUDED
-
-#include "nettle-types.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define gost28147_param_test_3411 nettle_gost28147_param_test_3411
-#define gost28147_param_CryptoPro_3411 nettle_gost28147_param_CryptoPro_3411
-
-struct gost28147_param
-{
-  uint32_t sbox[4][256];
-};
-
-extern const struct gost28147_param gost28147_param_test_3411;
-extern const struct gost28147_param gost28147_param_CryptoPro_3411;
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* NETTLE_GOST28147_H_INCLUDED */

gosthash94.c

@@ -41,7 +41,6 @@
 #include "macros.h"
 #include "nettle-write.h"
 #include "gosthash94.h"
-#include "gost28147.h"
 #include "gost28147-internal.h"
 
 /**
@@ -339,7 +338,7 @@ gosthash94_update (struct gosthash94_ctx *ctx,
 		   size_t length, const uint8_t *msg)
 {
   gosthash94_update_int (ctx, length, msg,
-			 gost28147_param_test_3411.sbox);
+			 _gost28147_param_test_3411.sbox);
 }
 
 /**
@@ -355,7 +354,7 @@ gosthash94cp_update (struct gosthash94_ctx *ctx,
 		     size_t length, const uint8_t *msg)
 {
   gosthash94_update_int (ctx, length, msg,
-			 gost28147_param_CryptoPro_3411.sbox);
+			 _gost28147_param_CryptoPro_3411.sbox);
 }
 
 /**
@@ -399,7 +398,7 @@ gosthash94_digest (struct gosthash94_ctx *ctx,
 		   size_t length, uint8_t *result)
 {
   gosthash94_write_digest (ctx, length, result,
-			   gost28147_param_test_3411.sbox);
+			   _gost28147_param_test_3411.sbox);
 }
 
 void
@@ -407,5 +406,5 @@ gosthash94cp_digest (struct gosthash94_ctx *ctx,
 		     size_t length, uint8_t *result)
 {
   gosthash94_write_digest (ctx, length, result,
-			   gost28147_param_CryptoPro_3411.sbox);
+			   _gost28147_param_CryptoPro_3411.sbox);
 }