61 lines
1.5 KiB
C
61 lines
1.5 KiB
C
/*
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* Header file to maintain compatibility among different kernel versions.
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*
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* Copyright (c) 2004-2006 <lawrence_wang@realsil.com.cn>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation. See README and COPYING for
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* more details.
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*/
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#include <linux/crypto.h>
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static inline int crypto_cipher_encrypt(struct crypto_tfm *tfm,
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struct scatterlist *dst,
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struct scatterlist *src,
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unsigned int nbytes)
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{
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BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
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return tfm->crt_cipher.cit_encrypt(tfm, dst, src, nbytes);
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}
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static inline int crypto_cipher_decrypt(struct crypto_tfm *tfm,
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struct scatterlist *dst,
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struct scatterlist *src,
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unsigned int nbytes)
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{
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BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
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return tfm->crt_cipher.cit_decrypt(tfm, dst, src, nbytes);
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}
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struct crypto_tfm *crypto_alloc_tfm(const char *name, u32 flags)
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{
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struct crypto_tfm *tfm = NULL;
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int err;
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printk("call crypto_alloc_tfm!!!\n");
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do {
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struct crypto_alg *alg;
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alg = crypto_alg_mod_lookup(name, 0, CRYPTO_ALG_ASYNC);
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err = PTR_ERR(alg);
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if (IS_ERR(alg))
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continue;
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tfm = __crypto_alloc_tfm(alg, flags);
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err = 0;
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if (IS_ERR(tfm)) {
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crypto_mod_put(alg);
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err = PTR_ERR(tfm);
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tfm = NULL;
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}
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} while (err == -EAGAIN && !signal_pending(current));
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return tfm;
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}
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//EXPORT_SYMBOL_GPL(crypto_alloc_tfm);
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//EXPORT_SYMBOL_GPL(crypto_free_tfm);
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