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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /crypto/internal.h | |
parent | Initial commit. (diff) | |
download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'crypto/internal.h')
-rw-r--r-- | crypto/internal.h | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/crypto/internal.h b/crypto/internal.h new file mode 100644 index 0000000000..63e59240d5 --- /dev/null +++ b/crypto/internal.h @@ -0,0 +1,220 @@ +/* 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/err.h> +#include <linux/jump_label.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/scatterlist.h> +#include <linux/sched.h> +#include <linux/types.h> + +struct akcipher_request; +struct crypto_akcipher; +struct crypto_instance; +struct crypto_template; + +struct crypto_larval { + struct crypto_alg alg; + struct crypto_alg *adult; + struct completion completion; + u32 mask; + bool test_started; +}; + +struct crypto_akcipher_sync_data { + struct crypto_akcipher *tfm; + const void *src; + void *dst; + unsigned int slen; + unsigned int dlen; + + struct akcipher_request *req; + struct crypto_wait cwait; + struct scatterlist sg; + u8 *buf; +}; + +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); + +#ifdef CONFIG_CRYPTO_MANAGER_DISABLE_TESTS +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 /* !CONFIG_CRYPTO_MANAGER_DISABLE_TESTS */ + +#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_wait_for_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_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); + +int crypto_akcipher_sync_prep(struct crypto_akcipher_sync_data *data); +int crypto_akcipher_sync_post(struct crypto_akcipher_sync_data *data, int err); +int crypto_init_akcipher_ops_sig(struct crypto_tfm *tfm); + +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(); +} + +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 */ + |