tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Cryptographic API.
3 *
4 * Compression operations.
5 *
6 * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the Free
10 * Software Foundation; either version 2 of the License, or (at your option)
11 * any later version.
12 *
13 */
14#include <linux/types.h>
15#include <linux/crypto.h>
16#include <linux/errno.h>
17#include <asm/scatterlist.h>
18#include <linux/string.h>
19#include "internal.h"
20
21static int crypto_compress(struct crypto_tfm *tfm,
22 const u8 *src, unsigned int slen,
23 u8 *dst, unsigned int *dlen)
24{
25 return tfm->__crt_alg->cra_compress.coa_compress(tfm, src, slen, dst,
26 dlen);
27}
28
29static int crypto_decompress(struct crypto_tfm *tfm,
30 const u8 *src, unsigned int slen,
31 u8 *dst, unsigned int *dlen)
32{
33 return tfm->__crt_alg->cra_compress.coa_decompress(tfm, src, slen, dst,
34 dlen);
35}
36
37int crypto_init_compress_flags(struct crypto_tfm *tfm, u32 flags)
38{
39 return flags ? -EINVAL : 0;
40}
41
42int crypto_init_compress_ops(struct crypto_tfm *tfm)
43{
44 struct compress_tfm *ops = &tfm->crt_compress;
45
46 ops->cot_compress = crypto_compress;
47 ops->cot_decompress = crypto_decompress;
48
49 return 0;
50}
51
52void crypto_exit_compress_ops(struct crypto_tfm *tfm)
53{
54}