-- Regards Vladimir 'φ-coder/phcoder' Serbinenko
=== modified file 'Makefile.util.def' --- Makefile.util.def 2011-06-24 20:16:05 +0000 +++ Makefile.util.def 2011-06-24 21:29:27 +0000 @@ -88,6 +88,7 @@ common = grub-core/lib/LzmaEnc.c; common = grub-core/lib/pbkdf2.c; common = grub-core/lib/crc.c; + common = grub-core/lib/crc64.c; common = grub-core/normal/datetime.c; common = grub-core/normal/misc.c; common = grub-core/partmap/acorn.c;
=== modified file 'grub-core/Makefile.core.def'
--- grub-core/Makefile.core.def 2011-06-24 20:16:05 +0000
+++ grub-core/Makefile.core.def 2011-06-24 21:21:08 +0000
@@ -1637,3 +1637,8 @@
common = commands/keylayouts.c;
enable = videomodules;
};
+
+module = {
+ name = crc64;
+ common = lib/crc64.c;
+};
=== added file 'grub-core/lib/crc64.c'
--- grub-core/lib/crc64.c 1970-01-01 00:00:00 +0000
+++ grub-core/lib/crc64.c 2011-06-24 22:21:37 +0000
@@ -0,0 +1,111 @@
+/* crc64.c - crc64 function */
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2008,2011 Free Software Foundation, Inc.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB 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 a copy of the GNU General Public License
+ * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/types.h>
+#include <grub/dl.h>
+#include <grub/crypto.h>
+
+static grub_uint64_t crc64_table [256];
+
+static void
+init_crc64_table (void)
+{
+ auto grub_uint64_t reflect (grub_uint64_t ref, int len);
+ grub_uint64_t reflect (grub_uint64_t ref, int len)
+ {
+ grub_uint64_t result = 0;
+ int i;
+
+ for (i = 1; i <= len; i++)
+ {
+ if (ref & 1)
+ result |= 1ULL << (len - i);
+ ref >>= 1;
+ }
+
+ return result;
+ }
+
+ grub_uint64_t polynomial = 0x42f0e1eba9ea3693ULL;
+ int i, j;
+
+ for(i = 0; i < 256; i++)
+ {
+ crc64_table[i] = reflect(i, 8) << 56;
+ for (j = 0; j < 8; j++)
+ {
+ crc64_table[i] = (crc64_table[i] << 1) ^
+ (crc64_table[i] & (1ULL << 63) ? polynomial : 0);
+ }
+ crc64_table[i] = reflect(crc64_table[i], 64);
+ }
+}
+
+static void
+crc64_init (void *context)
+{
+ if (! crc64_table[1])
+ init_crc64_table ();
+ *(grub_uint64_t *) context = 0;
+}
+
+static void
+crc64_write (void *context, const void *buf, grub_size_t size)
+{
+ unsigned i;
+ const grub_uint8_t *data = buf;
+ grub_uint64_t crc = ~grub_le_to_cpu64 (*(grub_uint64_t *) context);
+
+ for (i = 0; i < size; i++)
+ {
+ crc = (crc >> 8) ^ crc64_table[(crc & 0xFF) ^ *data];
+ data++;
+ }
+
+ *(grub_uint64_t *) context = grub_cpu_to_le64 (~crc);
+}
+
+static grub_uint8_t *
+crc64_read (void *context)
+{
+ return context;
+}
+
+static void
+crc64_final (void *context __attribute__ ((unused)))
+{
+}
+
+gcry_md_spec_t _gcry_digest_spec_crc64 =
+ {
+ "CRC64", 0, 0, 0, 8,
+ crc64_init, crc64_write, crc64_final, crc64_read,
+ sizeof (grub_uint64_t),
+ .blocksize = 64
+ };
+
+GRUB_MOD_INIT(crc64)
+{
+ grub_md_register (&_gcry_digest_spec_crc64);
+}
+
+GRUB_MOD_FINI(crc64)
+{
+ grub_md_unregister (&_gcry_digest_spec_crc64);
+}
=== modified file 'util/import_gcry.py'
--- util/import_gcry.py 2011-04-12 10:39:17 +0000
+++ util/import_gcry.py 2011-06-24 21:23:01 +0000
@@ -73,6 +73,8 @@
cryptolist.write ("AES-192: gcry_rijndael\n");
cryptolist.write ("AES-256: gcry_rijndael\n");
+cryptolist.write ("CRC64: crc64\n");
+
for cipher_file in cipher_files:
infile = os.path.join (cipher_dir_in, cipher_file)
outfile = os.path.join (cipher_dir_out, cipher_file)
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