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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2015-04-21 10:46:40 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2015-04-22 09:30:16 +0800 |
| commit | 881cd6c570af412c2fab278b0656f7597dc5ee74 (patch) | |
| tree | 8086185484f8185be5cb365a45d35cf19d75d6dc | |
| parent | 7ca99d814821e8a8ac6d7c48b2ccfc24bda27b1f (diff) | |
| download | linux-881cd6c570af412c2fab278b0656f7597dc5ee74.tar.bz2 | |
crypto: rng - Add multiple algorithm registration interface
This patch adds the helpers that allow the registration and removal
of multiple RNG algorithms.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | crypto/rng.c | 29 | ||||
| -rw-r--r-- | include/crypto/internal/rng.h | 2 |
2 files changed, 31 insertions, 0 deletions
diff --git a/crypto/rng.c b/crypto/rng.c index 5e0425a24657..e98ce1ca527d 100644 --- a/crypto/rng.c +++ b/crypto/rng.c @@ -233,5 +233,34 @@ void crypto_unregister_rng(struct rng_alg *alg) } EXPORT_SYMBOL_GPL(crypto_unregister_rng); +int crypto_register_rngs(struct rng_alg *algs, int count) +{ + int i, ret; + + for (i = 0; i < count; i++) { + ret = crypto_register_rng(algs + i); + if (ret) + goto err; + } + + return 0; + +err: + for (--i; i >= 0; --i) + crypto_unregister_rng(algs + i); + + return ret; +} +EXPORT_SYMBOL_GPL(crypto_register_rngs); + +void crypto_unregister_rngs(struct rng_alg *algs, int count) +{ + int i; + + for (i = count - 1; i >= 0; --i) + crypto_unregister_rng(algs + i); +} +EXPORT_SYMBOL_GPL(crypto_unregister_rngs); + MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("Random Number Generator"); diff --git a/include/crypto/internal/rng.h b/include/crypto/internal/rng.h index 93d41bcc444e..2c9a865c66e2 100644 --- a/include/crypto/internal/rng.h +++ b/include/crypto/internal/rng.h @@ -20,6 +20,8 @@ extern const struct crypto_type crypto_rng_type; int crypto_register_rng(struct rng_alg *alg); void crypto_unregister_rng(struct rng_alg *alg); +int crypto_register_rngs(struct rng_alg *algs, int count); +void crypto_unregister_rngs(struct rng_alg *algs, int count); static inline void *crypto_rng_ctx(struct crypto_rng *tfm) { |