diff options
Diffstat (limited to 'drivers/staging/rtl8192u/ieee80211/crypto_compat.h')
| -rw-r--r-- | drivers/staging/rtl8192u/ieee80211/crypto_compat.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/drivers/staging/rtl8192u/ieee80211/crypto_compat.h b/drivers/staging/rtl8192u/ieee80211/crypto_compat.h new file mode 100644 index 000000000000..da486588f1c0 --- /dev/null +++ b/drivers/staging/rtl8192u/ieee80211/crypto_compat.h @@ -0,0 +1,60 @@ +/* + * Header file to maintain compatibility among different kernel versions. + * + * Copyright (c) 2004-2006 <lawrence_wang@realsil.com.cn> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. See README and COPYING for + * more details. + */ + +#include <linux/crypto.h> + +static inline int crypto_cipher_encrypt(struct crypto_tfm *tfm, + struct scatterlist *dst, + struct scatterlist *src, + unsigned int nbytes) +{ + BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER); + return tfm->crt_cipher.cit_encrypt(tfm, dst, src, nbytes); +} + + +static inline int crypto_cipher_decrypt(struct crypto_tfm *tfm, + struct scatterlist *dst, + struct scatterlist *src, + unsigned int nbytes) +{ + BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER); + return tfm->crt_cipher.cit_decrypt(tfm, dst, src, nbytes); +} + + struct crypto_tfm *crypto_alloc_tfm(const char *name, u32 flags) +{ + struct crypto_tfm *tfm = NULL; + int err; + printk("call crypto_alloc_tfm!!!\n"); + do { + struct crypto_alg *alg; + + alg = crypto_alg_mod_lookup(name, 0, CRYPTO_ALG_ASYNC); + err = PTR_ERR(alg); + if (IS_ERR(alg)) + continue; + + tfm = __crypto_alloc_tfm(alg, flags); + err = 0; + if (IS_ERR(tfm)) { + crypto_mod_put(alg); + err = PTR_ERR(tfm); + tfm = NULL; + } + } while (err == -EAGAIN && !signal_pending(current)); + + return tfm; +} +//EXPORT_SYMBOL_GPL(crypto_alloc_tfm); +//EXPORT_SYMBOL_GPL(crypto_free_tfm); + + |