/* * Cryptographic API. * * Copyright (c) 2002 James Morris <jmorris@intercode.com.au> * Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au> * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the Free * Software Foundation; either version 2 of the License, or (at your option)  * any later version. * */#ifndef _CRYPTO_INTERNAL_H#define _CRYPTO_INTERNAL_H#include <linux/crypto.h>#include <linux/mm.h>#include <linux/highmem.h>#include <linux/interrupt.h>#include <linux/init.h>#include <linux/list.h>#include <linux/kernel.h>#include <linux/rwsem.h>#include <linux/slab.h>#include <asm/kmap_types.h> extern struct list_head crypto_alg_list;extern struct rw_semaphore crypto_alg_sem; extern enum km_type crypto_km_types[]; static inline enum km_type crypto_kmap_type(int out){	return crypto_km_types[(in_softirq() ? 2 : 0) + out];} static inline void *crypto_kmap(struct page *page, int out){	return kmap_atomic(page, crypto_kmap_type(out));} static inline void crypto_kunmap(void *vaddr, int out){	kunmap_atomic(vaddr, crypto_kmap_type(out));} static inline void crypto_yield(struct crypto_tfm *tfm){	if (tfm->crt_flags & CRYPTO_TFM_REQ_MAY_SLEEP)		cond_resched();} #ifdef CONFIG_CRYPTO_HMACint crypto_alloc_hmac_block(struct crypto_tfm *tfm);void crypto_free_hmac_block(struct crypto_tfm *tfm);#elsestatic inline int crypto_alloc_hmac_block(struct crypto_tfm *tfm){	return 0;} static inline void crypto_free_hmac_block(struct crypto_tfm *tfm){ }#endif #ifdef CONFIG_PROC_FSvoid __init crypto_init_proc(void);#elsestatic inline void crypto_init_proc(void){ }#endif static inline unsigned int crypto_digest_ctxsize(struct crypto_alg *alg,						 int flags){	return alg->cra_ctxsize;} static inline unsigned int crypto_cipher_ctxsize(struct crypto_alg *alg,						 int flags){	unsigned int len = alg->cra_ctxsize;		switch (flags & CRYPTO_TFM_MODE_MASK) {	case CRYPTO_TFM_MODE_CBC:		len = ALIGN(len, (unsigned long)alg->cra_alignmask + 1);		len += alg->cra_blocksize;		break;	} 	return len;} static inline unsigned int crypto_compress_ctxsize(struct crypto_alg *alg,						   int flags){	return alg->cra_ctxsize;} int crypto_init_digest_flags(struct crypto_tfm *tfm, u32 flags);int crypto_init_cipher_flags(struct crypto_tfm *tfm, u32 flags);int crypto_init_compress_flags(struct crypto_tfm *tfm, u32 flags); int crypto_init_digest_ops(struct crypto_tfm *tfm);int crypto_init_cipher_ops(struct crypto_tfm *tfm);int crypto_init_compress_ops(struct crypto_tfm *tfm); void crypto_exit_digest_ops(struct crypto_tfm *tfm);void crypto_exit_cipher_ops(struct crypto_tfm *tfm);void crypto_exit_compress_ops(struct crypto_tfm *tfm); #endif	/* _CRYPTO_INTERNAL_H */