/* * 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 <crypto/algapi.h>#include <linux/completion.h>#include <linux/mm.h>#include <linux/highmem.h>#include <linux/interrupt.h>#include <linux/init.h>#include <linux/list.h>#include <linux/module.h>#include <linux/kernel.h>#include <linux/notifier.h>#include <linux/rwsem.h>#include <linux/slab.h>#include <asm/kmap_types.h> /* Crypto notification events. */enum {	CRYPTO_MSG_ALG_REQUEST,	CRYPTO_MSG_ALG_REGISTER,	CRYPTO_MSG_ALG_UNREGISTER,	CRYPTO_MSG_TMPL_REGISTER,	CRYPTO_MSG_TMPL_UNREGISTER,}; struct crypto_instance;struct crypto_template; struct crypto_larval {	struct crypto_alg alg;	struct crypto_alg *adult;	struct completion completion;	u32 mask;}; extern struct list_head crypto_alg_list;extern struct rw_semaphore crypto_alg_sem;extern struct blocking_notifier_head crypto_chain; 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(u32 flags){	if (flags & CRYPTO_TFM_REQ_MAY_SLEEP)		cond_resched();} #ifdef CONFIG_PROC_FSvoid __init crypto_init_proc(void);void __exit crypto_exit_proc(void);#elsestatic inline void crypto_init_proc(void){ }static inline void crypto_exit_proc(void){ }#endif static inline unsigned int crypto_digest_ctxsize(struct crypto_alg *alg){	unsigned int len = alg->cra_ctxsize; 	if (alg->cra_alignmask) {		len = ALIGN(len, (unsigned long)alg->cra_alignmask + 1);		len += alg->cra_digest.dia_digestsize;	} 	return len;} static inline unsigned int crypto_cipher_ctxsize(struct crypto_alg *alg){	return alg->cra_ctxsize;} static inline unsigned int crypto_compress_ctxsize(struct crypto_alg *alg){	return alg->cra_ctxsize;} struct crypto_alg *crypto_mod_get(struct crypto_alg *alg);struct crypto_alg *__crypto_alg_lookup(const char *name, u32 type, u32 mask);struct crypto_alg *crypto_alg_mod_lookup(const char *name, u32 type, u32 mask); 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); void crypto_larval_error(const char *name, u32 type, u32 mask); void crypto_shoot_alg(struct crypto_alg *alg);struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 type,				      u32 mask); int crypto_register_instance(struct crypto_template *tmpl,			     struct crypto_instance *inst); int crypto_register_notifier(struct notifier_block *nb);int crypto_unregister_notifier(struct notifier_block *nb); static inline void crypto_alg_put(struct crypto_alg *alg){	if (atomic_dec_and_test(&alg->cra_refcnt) && alg->cra_destroy)		alg->cra_destroy(alg);} static inline int crypto_tmpl_get(struct crypto_template *tmpl){	return try_module_get(tmpl->module);} static inline void crypto_tmpl_put(struct crypto_template *tmpl){	module_put(tmpl->module);} static inline int crypto_is_larval(struct crypto_alg *alg){	return alg->cra_flags & CRYPTO_ALG_LARVAL;} static inline int crypto_is_dead(struct crypto_alg *alg){	return alg->cra_flags & CRYPTO_ALG_DEAD;} static inline int crypto_is_moribund(struct crypto_alg *alg){	return alg->cra_flags & (CRYPTO_ALG_DEAD | CRYPTO_ALG_DYING);} static inline int crypto_notify(unsigned long val, void *v){	return blocking_notifier_call_chain(&crypto_chain, val, v);} #endif	/* _CRYPTO_INTERNAL_H */