X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=crypto%2Finternal.h;h=2d226362e5940f9621e500970f88b72bd564e9d6;hb=37d4008484977f60d5d37499a2670c79b214dd46;hp=959e602909a60e1042e2d07d4d19471d9b0cd23c;hpb=5cb1454b862ab3040b78364d58330262fea1ddba;p=safe%2Fjmp%2Flinux-2.6 diff --git a/crypto/internal.h b/crypto/internal.h index 959e602..2d22636 100644 --- a/crypto/internal.h +++ b/crypto/internal.h @@ -12,101 +12,130 @@ */ #ifndef _CRYPTO_INTERNAL_H #define _CRYPTO_INTERNAL_H -#include + +#include +#include #include #include #include #include #include +#include #include +#include #include #include -#include +#include + +/* 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[]; +#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 enum km_type crypto_kmap_type(int out) +static inline unsigned int crypto_cipher_ctxsize(struct crypto_alg *alg) { - return crypto_km_types[(in_softirq() ? 2 : 0) + out]; + return alg->cra_ctxsize; } -static inline void *crypto_kmap(struct page *page, int out) +static inline unsigned int crypto_compress_ctxsize(struct crypto_alg *alg) { - return kmap_atomic(page, crypto_kmap_type(out)); + return alg->cra_ctxsize; } -static inline void crypto_kunmap(void *vaddr, int out) +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_larval_error(const char *name, u32 type, u32 mask); +void crypto_alg_tested(const char *name, int err); + +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(struct crypto_alg *alg, + const struct crypto_type *frontend); +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); +int crypto_probing_notify(unsigned long val, void *v); + +static inline void crypto_alg_put(struct crypto_alg *alg) { - kunmap_atomic(vaddr, crypto_kmap_type(out)); + if (atomic_dec_and_test(&alg->cra_refcnt) && alg->cra_destroy) + alg->cra_destroy(alg); } -static inline void crypto_yield(struct crypto_tfm *tfm) +static inline int crypto_tmpl_get(struct crypto_template *tmpl) { - if (tfm->crt_flags & CRYPTO_TFM_REQ_MAY_SLEEP) - cond_resched(); + return try_module_get(tmpl->module); } -#ifdef CONFIG_CRYPTO_HMAC -int crypto_alloc_hmac_block(struct crypto_tfm *tfm); -void crypto_free_hmac_block(struct crypto_tfm *tfm); -#else -static inline int crypto_alloc_hmac_block(struct crypto_tfm *tfm) +static inline void crypto_tmpl_put(struct crypto_template *tmpl) { - return 0; + module_put(tmpl->module); } -static inline void crypto_free_hmac_block(struct crypto_tfm *tfm) -{ } -#endif - -#ifdef CONFIG_PROC_FS -void __init crypto_init_proc(void); -#else -static inline void crypto_init_proc(void) -{ } -#endif - -static inline unsigned int crypto_digest_ctxsize(struct crypto_alg *alg, - int flags) +static inline int crypto_is_larval(struct crypto_alg *alg) { - return alg->cra_ctxsize; + return alg->cra_flags & CRYPTO_ALG_LARVAL; } -static inline unsigned int crypto_cipher_ctxsize(struct crypto_alg *alg, - int flags) +static inline int crypto_is_dead(struct crypto_alg *alg) { - 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; + return alg->cra_flags & CRYPTO_ALG_DEAD; } -static inline unsigned int crypto_compress_ctxsize(struct crypto_alg *alg, - int flags) +static inline int crypto_is_moribund(struct crypto_alg *alg) { - return alg->cra_ctxsize; + return alg->cra_flags & (CRYPTO_ALG_DEAD | CRYPTO_ALG_DYING); } -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); +static inline void crypto_notify(unsigned long val, void *v) +{ + blocking_notifier_call_chain(&crypto_chain, val, v); +} #endif /* _CRYPTO_INTERNAL_H */