/* SPDX-License-Identifier: GPL-2.0-or-later */

  /*
   * Cryptographic API.
   *
   * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>

   * Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au>

   */
  #ifndef _CRYPTO_INTERNAL_H
  #define _CRYPTO_INTERNAL_H

  
  #include <crypto/algapi.h>

  #include <linux/completion.h>

  #include <linux/list.h>

  #include <linux/module.h>

  #include <linux/notifier.h>

  #include <linux/numa.h>
  #include <linux/refcount.h>

  #include <linux/rwsem.h>

  #include <linux/sched.h>
  #include <linux/types.h>

  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;

  #ifdef CONFIG_PROC_FS
  void __init crypto_init_proc(void);

  void __exit crypto_exit_proc(void);

  #else
  static inline void crypto_init_proc(void)
  { }

  static inline void crypto_exit_proc(void)
  { }

  #endif

  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_mod_lookup(const char *name, u32 type, u32 mask);

  struct crypto_larval *crypto_larval_alloc(const char *name, u32 type, u32 mask);

  void crypto_larval_kill(struct crypto_alg *alg);

  void crypto_alg_tested(const char *name, int err);

  void crypto_remove_spawns(struct crypto_alg *alg, struct list_head *list,
  			  struct crypto_alg *nalg);

  void crypto_remove_final(struct list_head *list);

  void crypto_shoot_alg(struct crypto_alg *alg);

  struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 type,
  				      u32 mask);

  void *crypto_create_tfm_node(struct crypto_alg *alg,
  			const struct crypto_type *frontend, int node);
  
  static inline void *crypto_create_tfm(struct crypto_alg *alg,
  			const struct crypto_type *frontend)
  {
  	return crypto_create_tfm_node(alg, frontend, NUMA_NO_NODE);
  }

  struct crypto_alg *crypto_find_alg(const char *alg_name,
  				   const struct crypto_type *frontend,
  				   u32 type, u32 mask);

  
  void *crypto_alloc_tfm_node(const char *alg_name,
  		       const struct crypto_type *frontend, u32 type, u32 mask,
  		       int node);
  
  static inline void *crypto_alloc_tfm(const char *alg_name,
  		       const struct crypto_type *frontend, u32 type, u32 mask)
  {
  	return crypto_alloc_tfm_node(alg_name, frontend, type, mask, NUMA_NO_NODE);
  }

  int crypto_probing_notify(unsigned long val, void *v);

  unsigned int crypto_alg_extsize(struct crypto_alg *alg);

  int crypto_type_has_alg(const char *name, const struct crypto_type *frontend,
  			u32 type, u32 mask);

  static inline struct crypto_alg *crypto_alg_get(struct crypto_alg *alg)
  {

  	refcount_inc(&alg->cra_refcnt);

  	return alg;
  }

  static inline void crypto_alg_put(struct crypto_alg *alg)
  {

  	if (refcount_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 void crypto_notify(unsigned long val, void *v)

  {

  	blocking_notifier_call_chain(&crypto_chain, val, v);

  }

  static inline void crypto_yield(u32 flags)
  {
  	if (flags & CRYPTO_TFM_REQ_MAY_SLEEP)
  		cond_resched();
  }

  #endif	/* _CRYPTO_INTERNAL_H */