2 files changed, 40 insertions, 1 deletions
diff --git a/crypto/Makefile.objs b/crypto/Makefile.objs
index c2a371b0b4..cdee92b4e5 100644
--- a/crypto/Makefile.objs
+++ b/crypto/Makefile.objs
@@ -35,5 +35,6 @@ crypto-obj-y += block-luks.o
 
 util-obj-$(CONFIG_GCRYPT) += random-gcrypt.o
 util-obj-$(if $(CONFIG_GCRYPT),n,$(CONFIG_GNUTLS)) += random-gnutls.o
-util-obj-$(if $(CONFIG_GCRYPT),n,$(if $(CONFIG_GNUTLS),n,y)) += random-platform.o
+util-obj-$(if $(CONFIG_GCRYPT),n,$(if $(CONFIG_GNUTLS),n,$(CONFIG_RNG_NONE))) += random-none.o
+util-obj-$(if $(CONFIG_GCRYPT),n,$(if $(CONFIG_GNUTLS),n,$(if $(CONFIG_RNG_NONE),n,y))) += random-platform.o
 util-obj-y += aes.o init.o
diff --git a/crypto/random-none.c b/crypto/random-none.c
new file mode 100644
index 0000000000..102f8a4dce
--- /dev/null
+++ b/crypto/random-none.c
@@ -0,0 +1,38 @@
+/*
+ * QEMU Crypto "none" random number provider
+ *
+ * Copyright (c) 2020 Marek Marczykowski-Górecki
+ *                      <marmarek@invisiblethingslab.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "qemu/osdep.h"
+
+#include "crypto/random.h"
+#include "qapi/error.h"
+
+int qcrypto_random_init(Error **errp)
+{
+    return 0;
+}
+
+int qcrypto_random_bytes(void *buf,
+                         size_t buflen,
+                         Error **errp)
+{
+    error_setg(errp, "Random bytes not available with \"none\" rng");
+    return -1;
+}