abi: explicitly export intended symbols and hide others

This adds all exported symbols in the map files explicitly under
the following rules:
 - Symbols mentioned in internal headers go in a section which is
   valid only for testing, and linking with these symbols will break
   in library updates.
 - Symbols mentioned in installed headers go in the exported sections
   and are considered part of the ABI.
 - All internal symbols move to internal headers.
 - The _nettle_md5_compress and _nettle_sha1_compress become exported
   without the _nettle prefix, due to existing usage.

1 files changed, 95 insertions, 0 deletions

diff --git a/umac-internal.h b/umac-internal.h
new file mode 100644
index 00000000..1d2cc091
--- /dev/null
+++ b/umac-internal.h
@@ -0,0 +1,95 @@
+/* umac-internal.h
+
+   UMAC message authentication code (RFC-4418).
+
+   Copyright (C) 2013 Niels Möller
+
+   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_UMAC_INTERNAL_H_INCLUDED
+#define NETTLE_UMAC_INTERNAL_H_INCLUDED
+
+#include "nettle-types.h"
+
+#define _umac_set_key _nettle_umac_set_key
+#define _umac_nh _nettle_umac_nh
+#define _umac_nh_n _nettle_umac_nh_n
+#define _umac_poly64 _nettle_umac_poly64
+#define _umac_poly128 _nettle_umac_poly128
+#define _umac_l2_init _nettle_umac_l2_init
+#define _umac_l2 _nettle_umac_l2
+#define _umac_l2_final _nettle_umac_l2_final
+#define _umac_l3_init _nettle_umac_l3_init
+#define _umac_l3 _nettle_umac_l3
+
+void
+_umac_set_key (uint32_t *l1_key, uint32_t *l2_key,
+	       uint64_t *l3_key1, uint32_t *l3_key2,
+	       struct aes128_ctx *pad, const uint8_t *key, unsigned n);
+
+uint64_t
+_umac_nh (const uint32_t *key, unsigned length, const uint8_t *msg);
+
+/* Equivalent to
+
+   for (i = 0; i < n; i++)
+     out[i] = _umac_nh (key + 4*i, length, msg);
+
+   but processing input only once.
+*/
+void
+_umac_nh_n (uint64_t *out, unsigned n, const uint32_t *key,
+	    unsigned length, const uint8_t *msg);
+
+/* Returns y*k + m (mod p), including "marker" processing. Return
+   value is *not* in canonical representation, and must be normalized
+   before the output is used. */
+uint64_t
+_umac_poly64 (uint32_t kh, uint32_t kl, uint64_t y, uint64_t m);
+
+void
+_umac_poly128 (const uint32_t *k, uint64_t *y, uint64_t mh, uint64_t ml);
+
+void
+_umac_l2_init (unsigned size, uint32_t *k);
+
+void
+_umac_l2(const uint32_t *key, uint64_t *state, unsigned n,
+	 uint64_t count, const uint64_t *m);
+
+void
+_umac_l2_final(const uint32_t *key, uint64_t *state, unsigned n,
+	       uint64_t count);
+
+void
+_umac_l3_init (unsigned size, uint64_t *k);
+
+uint32_t
+_umac_l3 (const uint64_t *key, const uint64_t *m);
+
+#endif /* NETTLE_UMAC_INTERNAL_H_INCLUDED */