Introduce Virtio-loopback epsilon release:

Epsilon release introduces a new compatibility layer which make virtio-loopback
design to work with QEMU and rust-vmm vhost-user backend without require any
changes.

Signed-off-by: Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com>
Change-Id: I52e57563e08a7d0bdc002f8e928ee61ba0c53dd9

1 files changed, 43 insertions, 0 deletions

diff --git a/crypto/pbkdf-stub.c b/crypto/pbkdf-stub.c
new file mode 100644
index 000000000..9c4622e42
--- /dev/null
+++ b/crypto/pbkdf-stub.c
@@ -0,0 +1,43 @@
+/*
+ * QEMU Crypto PBKDF support (Password-Based Key Derivation Function)
+ *
+ * Copyright (c) 2015-2016 Red Hat, Inc.
+ *
+ * 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 "qapi/error.h"
+#include "crypto/pbkdf.h"
+
+bool qcrypto_pbkdf2_supports(QCryptoHashAlgorithm hash G_GNUC_UNUSED)
+{
+    return false;
+}
+
+int qcrypto_pbkdf2(QCryptoHashAlgorithm hash G_GNUC_UNUSED,
+                   const uint8_t *key G_GNUC_UNUSED,
+                   size_t nkey G_GNUC_UNUSED,
+                   const uint8_t *salt G_GNUC_UNUSED,
+                   size_t nsalt G_GNUC_UNUSED,
+                   uint64_t iterations G_GNUC_UNUSED,
+                   uint8_t *out G_GNUC_UNUSED,
+                   size_t nout G_GNUC_UNUSED,
+                   Error **errp)
+{
+    error_setg_errno(errp, ENOSYS,
+                     "No crypto library supporting PBKDF in this build");
+    return -1;
+}