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-rw-r--r--crypto/crypto_user.c12
-rw-r--r--include/uapi/linux/cryptouser.h1
2 files changed, 12 insertions, 1 deletions
diff --git a/crypto/crypto_user.c b/crypto/crypto_user.c
index 11dbd5a81c72..08ea2867fc8a 100644
--- a/crypto/crypto_user.c
+++ b/crypto/crypto_user.c
@@ -27,6 +27,7 @@
#include <net/net_namespace.h>
#include <crypto/internal/aead.h>
#include <crypto/internal/skcipher.h>
+#include <crypto/internal/rng.h>
#include <crypto/akcipher.h>
#include "internal.h"
@@ -472,13 +473,21 @@ static int crypto_add_alg(struct sk_buff *skb, struct nlmsghdr *nlh,
return 0;
}
+static int crypto_del_rng(struct sk_buff *skb, struct nlmsghdr *nlh,
+ struct nlattr **attrs)
+{
+ if (!netlink_capable(skb, CAP_NET_ADMIN))
+ return -EPERM;
+ return crypto_del_default_rng();
+}
+
#define MSGSIZE(type) sizeof(struct type)
static const int crypto_msg_min[CRYPTO_NR_MSGTYPES] = {
[CRYPTO_MSG_NEWALG - CRYPTO_MSG_BASE] = MSGSIZE(crypto_user_alg),
[CRYPTO_MSG_DELALG - CRYPTO_MSG_BASE] = MSGSIZE(crypto_user_alg),
[CRYPTO_MSG_UPDATEALG - CRYPTO_MSG_BASE] = MSGSIZE(crypto_user_alg),
- [CRYPTO_MSG_GETALG - CRYPTO_MSG_BASE] = MSGSIZE(crypto_user_alg),
+ [CRYPTO_MSG_DELRNG - CRYPTO_MSG_BASE] = 0,
};
static const struct nla_policy crypto_policy[CRYPTOCFGA_MAX+1] = {
@@ -498,6 +507,7 @@ static const struct crypto_link {
[CRYPTO_MSG_GETALG - CRYPTO_MSG_BASE] = { .doit = crypto_report,
.dump = crypto_dump_report,
.done = crypto_dump_report_done},
+ [CRYPTO_MSG_DELRNG - CRYPTO_MSG_BASE] = { .doit = crypto_del_rng },
};
static int crypto_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
diff --git a/include/uapi/linux/cryptouser.h b/include/uapi/linux/cryptouser.h
index 36efbbbf2f83..2e67bb64c1da 100644
--- a/include/uapi/linux/cryptouser.h
+++ b/include/uapi/linux/cryptouser.h
@@ -25,6 +25,7 @@ enum {
CRYPTO_MSG_DELALG,
CRYPTO_MSG_UPDATEALG,
CRYPTO_MSG_GETALG,
+ CRYPTO_MSG_DELRNG,
__CRYPTO_MSG_MAX
};
#define CRYPTO_MSG_MAX (__CRYPTO_MSG_MAX - 1)