/drivers/staging/rtl8192u/ieee80211/crypto_compat.h
C++ Header | 60 lines | 38 code | 10 blank | 12 comment | 7 complexity | dbc86f226320a6d4d51621c5b0d23dbf MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.0, AGPL-1.0
1/*
2 * Header file to maintain compatibility among different kernel versions.
3 *
4 * Copyright (c) 2004-2006 <lawrence_wang@realsil.com.cn>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation. See README and COPYING for
9 * more details.
10 */
11
12#include <linux/crypto.h>
13
14static inline int crypto_cipher_encrypt(struct crypto_tfm *tfm,
15 struct scatterlist *dst,
16 struct scatterlist *src,
17 unsigned int nbytes)
18{
19 BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
20 return tfm->crt_cipher.cit_encrypt(tfm, dst, src, nbytes);
21}
22
23
24static inline int crypto_cipher_decrypt(struct crypto_tfm *tfm,
25 struct scatterlist *dst,
26 struct scatterlist *src,
27 unsigned int nbytes)
28{
29 BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
30 return tfm->crt_cipher.cit_decrypt(tfm, dst, src, nbytes);
31}
32
33 struct crypto_tfm *crypto_alloc_tfm(const char *name, u32 flags)
34{
35 struct crypto_tfm *tfm = NULL;
36 int err;
37 printk("call crypto_alloc_tfm!!!\n");
38 do {
39 struct crypto_alg *alg;
40
41 alg = crypto_alg_mod_lookup(name, 0, CRYPTO_ALG_ASYNC);
42 err = PTR_ERR(alg);
43 if (IS_ERR(alg))
44 continue;
45
46 tfm = __crypto_alloc_tfm(alg, flags);
47 err = 0;
48 if (IS_ERR(tfm)) {
49 crypto_mod_put(alg);
50 err = PTR_ERR(tfm);
51 tfm = NULL;
52 }
53 } while (err == -EAGAIN && !signal_pending(current));
54
55 return tfm;
56}
57//EXPORT_SYMBOL_GPL(crypto_alloc_tfm);
58//EXPORT_SYMBOL_GPL(crypto_free_tfm);
59
60