1 files changed, 91 insertions, 0 deletions
diff --git a/src/libcharon/tests/utils/mock_nonce_gen.c b/src/libcharon/tests/utils/mock_nonce_gen.c
new file mode 100644
index 000000000..30910f991
--- /dev/null
+++ b/src/libcharon/tests/utils/mock_nonce_gen.c
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2016 Tobias Brunner
+ * HSR Hochschule fuer Technik Rapperswil
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program 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 General Public License
+ * for more details.
+ */
+
+#include "mock_nonce_gen.h"
+
+typedef struct private_nonce_gen_t private_nonce_gen_t;
+
+struct private_nonce_gen_t {
+
+	/**
+	 * Public interface
+	 */
+	nonce_gen_t public;
+
+	/**
+	 * Random number generator
+	 */
+	rng_t* rng;
+
+	/**
+	 * First byte to set to the nonces
+	 */
+	u_char first;
+};
+
+METHOD(nonce_gen_t, get_nonce, bool,
+	private_nonce_gen_t *this, size_t size, uint8_t *buffer)
+{
+	if (size > 0)
+	{
+		buffer[0] = this->first;
+		buffer++;
+		size--;
+	}
+	return this->rng->get_bytes(this->rng, size, buffer);
+}
+
+METHOD(nonce_gen_t, allocate_nonce, bool,
+	private_nonce_gen_t *this, size_t size, chunk_t *chunk)
+{
+	*chunk = chunk_alloc(size);
+	if (!get_nonce(this, chunk->len, chunk->ptr))
+	{
+		chunk_free(chunk);
+		return FALSE;
+	}
+	return TRUE;
+}
+
+METHOD(nonce_gen_t, destroy, void,
+	private_nonce_gen_t *this)
+{
+	DESTROY_IF(this->rng);
+	free(this);
+}
+
+/*
+ * Described in header
+ */
+nonce_gen_t *mock_nonce_gen_create(u_char first)
+{
+	private_nonce_gen_t *this;
+
+	INIT(this,
+		.public = {
+			.get_nonce = _get_nonce,
+			.allocate_nonce = _allocate_nonce,
+			.destroy = _destroy,
+		},
+		.rng = lib->crypto->create_rng(lib->crypto, RNG_WEAK),
+		.first = first,
+	);
+	if (!this->rng)
+	{
+		destroy(this);
+		return NULL;
+	}
+	return &this->public;
+}