X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=crypto%2Finternal.h;h=fc76e1f37fc35d0fd4928ec9326b330c22937d53;hb=133e2a3164771454aa326859c2b293687189b553;hp=37515beafc8ce44ff501d15d617968248656b59f;hpb=9d853c3757ef74ded5ae564d68370f22208fb88b;p=safe%2Fjmp%2Flinux-2.6 diff --git a/crypto/internal.h b/crypto/internal.h index 37515be..fc76e1f 100644 --- a/crypto/internal.h +++ b/crypto/internal.h @@ -2,6 +2,7 @@ * Cryptographic API. * * Copyright (c) 2002 James Morris + * Copyright (c) 2005 Herbert Xu * * 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 @@ -11,89 +12,87 @@ */ #ifndef _CRYPTO_INTERNAL_H #define _CRYPTO_INTERNAL_H -#include + +#include +#include #include #include #include #include +#include +#include #include -#include - -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(struct crypto_tfm *tfm) -{ - if (!in_atomic()) - cond_resched(); -} +#include +#include +#include -#ifdef CONFIG_CRYPTO_HMAC -int crypto_alloc_hmac_block(struct crypto_tfm *tfm); -void crypto_free_hmac_block(struct crypto_tfm *tfm); +#ifdef CONFIG_CRYPTO_FIPS +extern int fips_enabled; #else -static inline int crypto_alloc_hmac_block(struct crypto_tfm *tfm) -{ - return 0; -} - -static inline void crypto_free_hmac_block(struct crypto_tfm *tfm) -{ } +#define fips_enabled 0 #endif +/* 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; + #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_digest_ctxsize(struct crypto_alg *alg, - int flags) -{ - return alg->cra_ctxsize; -} - -static inline unsigned int crypto_cipher_ctxsize(struct crypto_alg *alg, - int flags) +static inline unsigned int crypto_digest_ctxsize(struct crypto_alg *alg) { unsigned int len = alg->cra_ctxsize; - - switch (flags & CRYPTO_TFM_MODE_MASK) { - case CRYPTO_TFM_MODE_CBC: + + if (alg->cra_alignmask) { len = ALIGN(len, (unsigned long)alg->cra_alignmask + 1); - len += alg->cra_blocksize; - break; + len += alg->cra_digest.dia_digestsize; } return len; } -static inline unsigned int crypto_compress_ctxsize(struct crypto_alg *alg, - int flags) +static inline unsigned int crypto_cipher_ctxsize(struct crypto_alg *alg) { return alg->cra_ctxsize; } -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); +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_digest_ops_async(struct crypto_tfm *tfm); int crypto_init_cipher_ops(struct crypto_tfm *tfm); int crypto_init_compress_ops(struct crypto_tfm *tfm); @@ -101,5 +100,65 @@ 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); +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); +void *crypto_alloc_tfm(const char *alg_name, + const struct crypto_type *frontend, 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); +int crypto_probing_notify(unsigned long val, void *v); + +int __init testmgr_init(void); +void testmgr_exit(void); + +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 void crypto_notify(unsigned long val, void *v) +{ + blocking_notifier_call_chain(&crypto_chain, val, v); +} + #endif /* _CRYPTO_INTERNAL_H */