crypto: Add userspace report for nivaead type algorithms

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 23 insertions, 0 deletions

diff --git a/crypto/aead.c b/crypto/aead.c
index bb641bd0285b..701556ffaaef 100644
--- a/crypto/aead.c
+++ b/crypto/aead.c
@@ -190,6 +190,28 @@ static int crypto_init_nivaead_ops(struct crypto_tfm *tfm, u32 type, u32 mask)
         return 0;
 }
 
+static int crypto_nivaead_report(struct sk_buff *skb, struct crypto_alg *alg)
+{
+        struct crypto_report_aead raead;
+        struct aead_alg *aead = &alg->cra_aead;
+
+        snprintf(raead.type, CRYPTO_MAX_ALG_NAME, "%s", "nivaead");
+        snprintf(raead.geniv, CRYPTO_MAX_ALG_NAME, "%s", aead->geniv);
+
+        raead.blocksize = alg->cra_blocksize;
+        raead.maxauthsize = aead->maxauthsize;
+        raead.ivsize = aead->ivsize;
+
+        NLA_PUT(skb, CRYPTOCFGA_REPORT_AEAD,
+                sizeof(struct crypto_report_aead), &raead);
+
+        return 0;
+
+nla_put_failure:
+        return -EMSGSIZE;
+}
+
+
 static void crypto_nivaead_show(struct seq_file *m, struct crypto_alg *alg)
         __attribute__ ((unused));
 static void crypto_nivaead_show(struct seq_file *m, struct crypto_alg *alg)
@@ -211,6 +233,7 @@ const struct crypto_type crypto_nivaead_type = {
 #ifdef CONFIG_PROC_FS
         .show = crypto_nivaead_show,
 #endif
+        .report = crypto_nivaead_report,
 };
 EXPORT_SYMBOL_GPL(crypto_nivaead_type);