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authorHerbert Xu <herbert@gondor.apana.org.au>2023-09-14 16:28:21 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2023-09-20 13:15:29 +0800
commit534562e59f354495c2644de6540d56713dde9e52 (patch)
tree6ae71acf5b14d489632d5d482cd4e419b315c7f4
parent02968703e846b1b9c7934dc8d6a6dde55dc54001 (diff)
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crypto: aead - Add crypto_has_aead
Add the helper crypto_has_aead. This is meant to replace the existing use of crypto_has_alg to locate AEAD algorithms. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
-rw-r--r--crypto/aead.c6
-rw-r--r--include/crypto/aead.h12
2 files changed, 18 insertions, 0 deletions
diff --git a/crypto/aead.c b/crypto/aead.c
index d5ba204ebdbf..54906633566a 100644
--- a/crypto/aead.c
+++ b/crypto/aead.c
@@ -269,6 +269,12 @@ struct crypto_aead *crypto_alloc_aead(const char *alg_name, u32 type, u32 mask)
}
EXPORT_SYMBOL_GPL(crypto_alloc_aead);
+int crypto_has_aead(const char *alg_name, u32 type, u32 mask)
+{
+ return crypto_type_has_alg(alg_name, &crypto_aead_type, type, mask);
+}
+EXPORT_SYMBOL_GPL(crypto_has_aead);
+
static int aead_prepare_alg(struct aead_alg *alg)
{
struct crypto_istat_aead *istat = aead_get_stat(alg);
diff --git a/include/crypto/aead.h b/include/crypto/aead.h
index 35e45b854a6f..51382befbe37 100644
--- a/include/crypto/aead.h
+++ b/include/crypto/aead.h
@@ -217,6 +217,18 @@ static inline void crypto_free_aead(struct crypto_aead *tfm)
crypto_destroy_tfm(tfm, crypto_aead_tfm(tfm));
}
+/**
+ * crypto_has_aead() - Search for the availability of an aead.
+ * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
+ * aead
+ * @type: specifies the type of the aead
+ * @mask: specifies the mask for the aead
+ *
+ * Return: true when the aead is known to the kernel crypto API; false
+ * otherwise
+ */
+int crypto_has_aead(const char *alg_name, u32 type, u32 mask);
+
static inline const char *crypto_aead_driver_name(struct crypto_aead *tfm)
{
return crypto_tfm_alg_driver_name(crypto_aead_tfm(tfm));