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>
(cherry picked from commit b735d0a91556fd9fd5bbeeebd7d327c2d92c36c8)
Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com>
Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>

diff --git a/crypto/aead.c b/crypto/aead.c
index bb641bd0285b2bb48a8efc1c4b8cdbf18797971d..701556ffaaef0e6ca21256b52a8b594904852f9e 100644 (file)
--- 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);