Root/crypto/compress.c

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 <linux/string.h>
18#include "internal.h"
19
20static int crypto_compress(struct crypto_tfm *tfm,
21                            const u8 *src, unsigned int slen,
22                            u8 *dst, unsigned int *dlen)
23{
24    return tfm->__crt_alg->cra_compress.coa_compress(tfm, src, slen, dst,
25                                                     dlen);
26}
27
28static int crypto_decompress(struct crypto_tfm *tfm,
29                             const u8 *src, unsigned int slen,
30                             u8 *dst, unsigned int *dlen)
31{
32    return tfm->__crt_alg->cra_compress.coa_decompress(tfm, src, slen, dst,
33                                                       dlen);
34}
35
36int crypto_init_compress_ops(struct crypto_tfm *tfm)
37{
38    struct compress_tfm *ops = &tfm->crt_compress;
39
40    ops->cot_compress = crypto_compress;
41    ops->cot_decompress = crypto_decompress;
42    
43    return 0;
44}
45
46void crypto_exit_compress_ops(struct crypto_tfm *tfm)
47{
48}
49

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