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authorSteffen Klassert <steffen.klassert@secunet.com>2011-09-27 07:47:11 +0200
committerHerbert Xu <herbert@gondor.apana.org.au>2011-10-21 14:24:06 +0200
commit792608e9c215141fa4b870b7b2a23767a1ef12f4 (patch)
treecb781b8cec57d958fb0cdbec0807289a3b868ad8 /crypto/rng.c
parenta55465dca7befd31f4ffa54508d4e2d1e701b8dc (diff)
downloadlinux-792608e9c215141fa4b870b7b2a23767a1ef12f4.tar.gz
crypto: Add userspace report for rng type algorithms
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/rng.c')
-rw-r--r--crypto/rng.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/crypto/rng.c b/crypto/rng.c
index 45229ae782b..feb7de00f43 100644
--- a/crypto/rng.c
+++ b/crypto/rng.c
@@ -21,6 +21,8 @@
#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/string.h>
+#include <linux/cryptouser.h>
+#include <net/netlink.h>
static DEFINE_MUTEX(crypto_default_rng_lock);
struct crypto_rng *crypto_default_rng;
@@ -58,6 +60,23 @@ static int crypto_init_rng_ops(struct crypto_tfm *tfm, u32 type, u32 mask)
return 0;
}
+static int crypto_rng_report(struct sk_buff *skb, struct crypto_alg *alg)
+{
+ struct crypto_report_rng rrng;
+
+ snprintf(rrng.type, CRYPTO_MAX_ALG_NAME, "%s", "rng");
+
+ rrng.seedsize = alg->cra_rng.seedsize;
+
+ NLA_PUT(skb, CRYPTOCFGA_REPORT_RNG,
+ sizeof(struct crypto_report_rng), &rrng);
+
+ return 0;
+
+nla_put_failure:
+ return -EMSGSIZE;
+}
+
static void crypto_rng_show(struct seq_file *m, struct crypto_alg *alg)
__attribute__ ((unused));
static void crypto_rng_show(struct seq_file *m, struct crypto_alg *alg)
@@ -78,6 +97,7 @@ const struct crypto_type crypto_rng_type = {
#ifdef CONFIG_PROC_FS
.show = crypto_rng_show,
#endif
+ .report = crypto_rng_report,
};
EXPORT_SYMBOL_GPL(crypto_rng_type);