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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2006-09-21 03:39:29 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2006-09-21 03:39:29 +0200 |
| commit | 6bfd48096ff8ecabf955958b51ddfa7988eb0a14 (patch) | |
| tree | 813799f00d8402348ba6817953b1c631541be66c /crypto/internal.h | |
| parent | [CRYPTO] api: Allow algorithm lookup by type (diff) | |
| download | linux-6bfd48096ff8ecabf955958b51ddfa7988eb0a14.tar.xz linux-6bfd48096ff8ecabf955958b51ddfa7988eb0a14.zip | |
[CRYPTO] api: Added spawns
Spawns lock a specific crypto algorithm in place. They can then be used
with crypto_spawn_tfm to allocate a tfm for that algorithm. When the base
algorithm of a spawn is deregistered, all its spawns will be automatically
removed.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'crypto/internal.h')
| -rw-r--r-- | crypto/internal.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/crypto/internal.h b/crypto/internal.h index c08d93bdadc4..03c00b0e6b60 100644 --- a/crypto/internal.h +++ b/crypto/internal.h @@ -142,12 +142,21 @@ void crypto_exit_compress_ops(struct crypto_tfm *tfm); void crypto_larval_error(const char *name, u32 type, u32 mask); +void crypto_shoot_alg(struct crypto_alg *alg); +struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 flags); + 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); +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); @@ -163,6 +172,16 @@ 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 int crypto_notify(unsigned long val, void *v) { return blocking_notifier_call_chain(&crypto_chain, val, v); |