diff options
Diffstat (limited to 'crypto/internal.h')
| -rw-r--r-- | crypto/internal.h | 151 |
1 files changed, 111 insertions, 40 deletions
diff --git a/crypto/internal.h b/crypto/internal.h index bd39bfc92eab..b9afd68767c1 100644 --- a/crypto/internal.h +++ b/crypto/internal.h @@ -1,40 +1,26 @@ +/* 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> - * - * 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/err.h> +#include <linux/jump_label.h> #include <linux/list.h> #include <linux/module.h> -#include <linux/kernel.h> #include <linux/notifier.h> +#include <linux/numa.h> +#include <linux/refcount.h> #include <linux/rwsem.h> -#include <linux/slab.h> -#include <linux/fips.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, -}; +#include <linux/scatterlist.h> +#include <linux/sched.h> +#include <linux/types.h> struct crypto_instance; struct crypto_template; @@ -44,12 +30,65 @@ struct crypto_larval { struct crypto_alg *adult; struct completion completion; u32 mask; + bool test_started; +}; + +struct crypto_type { + unsigned int (*ctxsize)(struct crypto_alg *alg, u32 type, u32 mask); + unsigned int (*extsize)(struct crypto_alg *alg); + int (*init_tfm)(struct crypto_tfm *tfm); + void (*show)(struct seq_file *m, struct crypto_alg *alg); + int (*report)(struct sk_buff *skb, struct crypto_alg *alg); + void (*free)(struct crypto_instance *inst); + void (*destroy)(struct crypto_alg *alg); + + unsigned int type; + unsigned int maskclear; + unsigned int maskset; + unsigned int tfmsize; + unsigned int algsize; +}; + +enum { + CRYPTOA_UNSPEC, + CRYPTOA_ALG, + CRYPTOA_TYPE, + __CRYPTOA_MAX, }; +#define CRYPTOA_MAX (__CRYPTOA_MAX - 1) + +/* Maximum number of (rtattr) parameters for each template. */ +#define CRYPTO_MAX_ATTRS 32 + extern struct list_head crypto_alg_list; extern struct rw_semaphore crypto_alg_sem; extern struct blocking_notifier_head crypto_chain; +int alg_test(const char *driver, const char *alg, u32 type, u32 mask); + +#if !IS_BUILTIN(CONFIG_CRYPTO_ALGAPI) || !IS_ENABLED(CONFIG_CRYPTO_SELFTESTS) +static inline bool crypto_boot_test_finished(void) +{ + return true; +} +static inline void set_crypto_boot_test_finished(void) +{ +} +#else +DECLARE_STATIC_KEY_FALSE(__crypto_boot_test_finished); +static inline bool crypto_boot_test_finished(void) +{ + return static_branch_likely(&__crypto_boot_test_finished); +} +static inline void set_crypto_boot_test_finished(void) +{ + static_branch_enable(&__crypto_boot_test_finished); +} +#endif /* !IS_BUILTIN(CONFIG_CRYPTO_ALGAPI) || + * !IS_ENABLED(CONFIG_CRYPTO_SELFTESTS) + */ + #ifdef CONFIG_PROC_FS void __init crypto_init_proc(void); void __exit crypto_exit_proc(void); @@ -71,48 +110,64 @@ static inline unsigned int crypto_compress_ctxsize(struct crypto_alg *alg) } 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_cipher_ops(struct crypto_tfm *tfm); -int crypto_init_compress_ops(struct crypto_tfm *tfm); - -void crypto_exit_cipher_ops(struct crypto_tfm *tfm); -void crypto_exit_compress_ops(struct crypto_tfm *tfm); - struct crypto_larval *crypto_larval_alloc(const char *name, u32 type, u32 mask); -void crypto_larval_kill(struct crypto_alg *alg); -struct crypto_alg *crypto_larval_lookup(const char *name, u32 type, u32 mask); +void crypto_schedule_test(struct crypto_larval *larval); 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_tfmgfp(struct crypto_alg *alg, u32 type, + u32 mask, gfp_t gfp); struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 type, u32 mask); -void *crypto_create_tfm(struct crypto_alg *alg, - const struct crypto_type *frontend); +void *crypto_create_tfm_node(struct crypto_alg *alg, + const struct crypto_type *frontend, int node); +void *crypto_clone_tfm(const struct crypto_type *frontend, + struct crypto_tfm *otfm); + +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(const char *alg_name, - const struct crypto_type *frontend, u32 type, u32 mask); -int crypto_register_notifier(struct notifier_block *nb); -int crypto_unregister_notifier(struct notifier_block *nb); +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) { - atomic_inc(&alg->cra_refcnt); + refcount_inc(&alg->cra_refcnt); return alg; } +void crypto_destroy_alg(struct crypto_alg *alg); + 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); + if (refcount_dec_and_test(&alg->cra_refcnt)) + crypto_destroy_alg(alg); } static inline int crypto_tmpl_get(struct crypto_template *tmpl) @@ -145,5 +200,21 @@ 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(); +} + +static inline int crypto_is_test_larval(struct crypto_larval *larval) +{ + return larval->alg.cra_driver_name[0]; +} + +static inline struct crypto_tfm *crypto_tfm_get(struct crypto_tfm *tfm) +{ + return refcount_inc_not_zero(&tfm->refcnt) ? tfm : ERR_PTR(-EOVERFLOW); +} + #endif /* _CRYPTO_INTERNAL_H */ |