5c67ea6cd9
* grub-core/commands/i386/pc/sendkey.c (grub_cmd_sendkey: find_key_code, find_ascii_code): Make static instead of nested. * grub-core/commands/legacycfg.c (legacy_file: getline): Likewise. Rename to ... (legacy_file_getline): ... this. * grub-core/commands/loadenv.c (grub_cmd_load_env: set_var): Likewise. * grub-core/kern/corecmd.c (grub_core_cmd_set: print_env): Likewise. * grub-core/kern/fs.c (grub_fs_probe: dummy_func): Likewise. Rename to ... (probe_dummy_iter): ... this. * grub-core/kern/i386/coreboot/mmap.c (grub_linuxbios_table_iterate: check_signature): Likewise. * grub-core/kern/parser.c (grub_parser_split_cmdline: check_varstate): Likewise. Mark inline. * grub-core/lib/arg.c (find_short: fnd_short): Likewise. Pass an additional parameter. (find_long: fnd_long): Likewise. Pass two additional parameters. * grub-core/lib/crc.c (init_crc32c_table: reflect): Likewise. * grub-core/lib/crc64.c (init_crc64_table: reflect): Likewise. * grub-core/lib/ieee1275/cmos.c (grub_cmos_find_port: hook): Likewise. Rename to ... (grub_cmos_find_port_iter): ... this. * grub-core/lib/ieee1275/datetime.c (find_rtc: hook): Likewise. Rename to ... (find_rtc_iter): ... this. * grub-core/normal/menu_entry.c (run): Fold nested editor_getsource function directly into the function body, since it is only called once.
114 lines
2.5 KiB
C
114 lines
2.5 KiB
C
/* 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>
|
|
|
|
GRUB_MOD_LICENSE ("GPLv3+");
|
|
|
|
static grub_uint64_t crc64_table [256];
|
|
|
|
/* Helper for init_crc64_table. */
|
|
static 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;
|
|
}
|
|
|
|
static void
|
|
init_crc64_table (void)
|
|
{
|
|
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);
|
|
}
|