mirror of
https://github.com/torvalds/linux.git
synced 2024-11-24 21:21:41 +00:00
5f60d5f6bb
asm/unaligned.h is always an include of asm-generic/unaligned.h; might as well move that thing to linux/unaligned.h and include that - there's nothing arch-specific in that header. auto-generated by the following: for i in `git grep -l -w asm/unaligned.h`; do sed -i -e "s/asm\/unaligned.h/linux\/unaligned.h/" $i done for i in `git grep -l -w asm-generic/unaligned.h`; do sed -i -e "s/asm-generic\/unaligned.h/linux\/unaligned.h/" $i done git mv include/asm-generic/unaligned.h include/linux/unaligned.h git mv tools/include/asm-generic/unaligned.h tools/include/linux/unaligned.h sed -i -e "/unaligned.h/d" include/asm-generic/Kbuild sed -i -e "s/__ASM_GENERIC/__LINUX/" include/linux/unaligned.h tools/include/linux/unaligned.h
90 lines
1.9 KiB
C
90 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
|
|
#include <linux/crc64.h>
|
|
#include <linux/module.h>
|
|
#include <crypto/internal/hash.h>
|
|
#include <linux/unaligned.h>
|
|
|
|
static int chksum_init(struct shash_desc *desc)
|
|
{
|
|
u64 *crc = shash_desc_ctx(desc);
|
|
|
|
*crc = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int chksum_update(struct shash_desc *desc, const u8 *data,
|
|
unsigned int length)
|
|
{
|
|
u64 *crc = shash_desc_ctx(desc);
|
|
|
|
*crc = crc64_rocksoft_generic(*crc, data, length);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int chksum_final(struct shash_desc *desc, u8 *out)
|
|
{
|
|
u64 *crc = shash_desc_ctx(desc);
|
|
|
|
put_unaligned_le64(*crc, out);
|
|
return 0;
|
|
}
|
|
|
|
static int __chksum_finup(u64 crc, const u8 *data, unsigned int len, u8 *out)
|
|
{
|
|
crc = crc64_rocksoft_generic(crc, data, len);
|
|
put_unaligned_le64(crc, out);
|
|
return 0;
|
|
}
|
|
|
|
static int chksum_finup(struct shash_desc *desc, const u8 *data,
|
|
unsigned int len, u8 *out)
|
|
{
|
|
u64 *crc = shash_desc_ctx(desc);
|
|
|
|
return __chksum_finup(*crc, data, len, out);
|
|
}
|
|
|
|
static int chksum_digest(struct shash_desc *desc, const u8 *data,
|
|
unsigned int length, u8 *out)
|
|
{
|
|
return __chksum_finup(0, data, length, out);
|
|
}
|
|
|
|
static struct shash_alg alg = {
|
|
.digestsize = sizeof(u64),
|
|
.init = chksum_init,
|
|
.update = chksum_update,
|
|
.final = chksum_final,
|
|
.finup = chksum_finup,
|
|
.digest = chksum_digest,
|
|
.descsize = sizeof(u64),
|
|
.base = {
|
|
.cra_name = CRC64_ROCKSOFT_STRING,
|
|
.cra_driver_name = "crc64-rocksoft-generic",
|
|
.cra_priority = 200,
|
|
.cra_blocksize = 1,
|
|
.cra_module = THIS_MODULE,
|
|
}
|
|
};
|
|
|
|
static int __init crc64_rocksoft_init(void)
|
|
{
|
|
return crypto_register_shash(&alg);
|
|
}
|
|
|
|
static void __exit crc64_rocksoft_exit(void)
|
|
{
|
|
crypto_unregister_shash(&alg);
|
|
}
|
|
|
|
module_init(crc64_rocksoft_init);
|
|
module_exit(crc64_rocksoft_exit);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DESCRIPTION("Rocksoft model CRC64 calculation.");
|
|
MODULE_ALIAS_CRYPTO("crc64-rocksoft");
|
|
MODULE_ALIAS_CRYPTO("crc64-rocksoft-generic");
|