crypto: twofish: Rename twofish to twofish_generic and add an alias
[linux-2.6.git] / 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
20 static 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
28 static 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
36 int 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
46 void crypto_exit_compress_ops(struct crypto_tfm *tfm)
47 {
48 }