crypto: Add userspace report for blkcipher type algorithms
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/crypto/blkcipher.c b/crypto/blkcipher.c
index 7a72192..2572d26 100644
--- a/crypto/blkcipher.c
+++ b/crypto/blkcipher.c
@@ -24,6 +24,8 @@
#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/string.h>
+#include <linux/cryptouser.h>
+#include <net/netlink.h>
#include "internal.h"
@@ -492,6 +494,28 @@
return crypto_init_blkcipher_ops_async(tfm);
}
+static int crypto_blkcipher_report(struct sk_buff *skb, struct crypto_alg *alg)
+{
+ struct crypto_report_blkcipher rblkcipher;
+
+ snprintf(rblkcipher.type, CRYPTO_MAX_ALG_NAME, "%s", "blkcipher");
+ snprintf(rblkcipher.geniv, CRYPTO_MAX_ALG_NAME, "%s",
+ alg->cra_blkcipher.geniv ?: "<default>");
+
+ rblkcipher.blocksize = alg->cra_blocksize;
+ rblkcipher.min_keysize = alg->cra_blkcipher.min_keysize;
+ rblkcipher.max_keysize = alg->cra_blkcipher.max_keysize;
+ rblkcipher.ivsize = alg->cra_blkcipher.ivsize;
+
+ NLA_PUT(skb, CRYPTOCFGA_REPORT_BLKCIPHER,
+ sizeof(struct crypto_report_blkcipher), &rblkcipher);
+
+ return 0;
+
+nla_put_failure:
+ return -EMSGSIZE;
+}
+
static void crypto_blkcipher_show(struct seq_file *m, struct crypto_alg *alg)
__attribute__ ((unused));
static void crypto_blkcipher_show(struct seq_file *m, struct crypto_alg *alg)
@@ -511,6 +535,7 @@
#ifdef CONFIG_PROC_FS
.show = crypto_blkcipher_show,
#endif
+ .report = crypto_blkcipher_report,
};
EXPORT_SYMBOL_GPL(crypto_blkcipher_type);