cmac-des3: add meta declaration to Nettle library

Move cmac-des3 meta information from testsuite/cmac-test.c to main
Nettle library.
Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>

Makefile.in

@@ -103,7 +103,7 @@ nettle_SOURCES = aes-decrypt-internal.c aes-decrypt.c \
 		 gcm-camellia128.c gcm-camellia128-meta.c \
 		 gcm-camellia256.c gcm-camellia256-meta.c \
 		 cmac.c cmac64.c cmac-aes128.c cmac-aes256.c cmac-des3.c \
-		 cmac-aes128-meta.c cmac-aes256-meta.c \
+		 cmac-aes128-meta.c cmac-aes256-meta.c cmac-des3-meta.c \
 		 gost28147.c gosthash94.c gosthash94-meta.c \
 		 hmac.c hmac-gosthash94.c hmac-md5.c hmac-ripemd160.c \
 		 hmac-sha1.c hmac-sha224.c hmac-sha256.c hmac-sha384.c \

cmac-des3-meta.c

+/* cmac-des3-meta.c
+
+   Copyright (C) 2020 Dmitry Baryshkov
+
+   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/.
+*/
+
+#if HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <assert.h>
+
+#include "nettle-meta.h"
+
+#include "cmac.h"
+
+const struct nettle_mac nettle_cmac_des3 =
+{
+  "cmac_des3",
+  sizeof(struct cmac_des3_ctx),
+  CMAC64_DIGEST_SIZE,
+  DES3_KEY_SIZE,
+
+  (nettle_set_key_func*) cmac_des3_set_key,
+  (nettle_hash_update_func*) cmac_des3_update,
+  (nettle_hash_digest_func*) cmac_des3_digest
+};

nettle-meta-macs.c

@@ -40,6 +40,7 @@
 const struct nettle_mac * const _nettle_macs[] = {
   &nettle_cmac_aes128,
   &nettle_cmac_aes256,
+  &nettle_cmac_des3,
   &nettle_hmac_md5,
   &nettle_hmac_ripemd160,
   &nettle_hmac_sha1,

nettle-meta.h

@@ -276,6 +276,7 @@ nettle_get_macs (void);
 
 extern const struct nettle_mac nettle_cmac_aes128;
 extern const struct nettle_mac nettle_cmac_aes256;
+extern const struct nettle_mac nettle_cmac_des3;
 
 /* HMAC variants with key size = digest size */
 extern const struct nettle_mac nettle_hmac_md5;

testsuite/cmac-test.c

@@ -2,18 +2,6 @@
 #include "nettle-internal.h"
 #include "cmac.h"
 
-const struct nettle_mac nettle_cmac_des3 =
-{
-  "CMAC-3DES",
-  sizeof(struct cmac_des3_ctx),
-  CMAC64_DIGEST_SIZE,
-  DES3_KEY_SIZE,
-
-  (nettle_set_key_func*) cmac_des3_set_key,
-  (nettle_hash_update_func*) cmac_des3_update,
-  (nettle_hash_digest_func*) cmac_des3_digest
-};
-
 #define test_cmac_aes128(key, msg, ref)					\
   test_mac(&nettle_cmac_aes128, key, msg, ref)
 

testsuite/meta-mac-test.c

@@ -4,6 +4,7 @@
 const char* macs[] = {
   "cmac_aes128",
   "cmac_aes256",
+  "cmac_des3",
   "hmac_md5",
   "hmac_ripemd160",
   "hmac_sha1",