1 files changed, 89 insertions, 0 deletions
diff --git a/fuzz/gnutls_psk_client_fuzzer.c b/fuzz/gnutls_psk_client_fuzzer.c
new file mode 100644
index 0000000..6133c99
--- /dev/null
+++ b/fuzz/gnutls_psk_client_fuzzer.c
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2017 Nikos Mavrogiannopoulos
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#include <assert.h>
+#include <fcntl.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include <gnutls/gnutls.h>
+
+#include "psk.h"
+#include "mem.h"
+#include "fuzzer.h"
+
+int LLVMFuzzerTestOneInput(const uint8_t * data, size_t size)
+{
+	int res;
+	gnutls_session_t session;
+	gnutls_psk_client_credentials_t pcred;
+	struct mem_st memdata;
+	gnutls_datum_t psk_key;
+
+	psk_key.data = (unsigned char*)psk_key16;
+	psk_key.size = 16;
+
+	res = gnutls_init(&session, GNUTLS_CLIENT);
+	assert(res >= 0);
+
+	res = gnutls_psk_allocate_client_credentials(&pcred);
+	assert(res >= 0);
+
+	res = gnutls_psk_set_client_credentials(pcred, "test", &psk_key, GNUTLS_PSK_KEY_RAW);
+	assert(res >= 0);
+
+	res = gnutls_credentials_set(session, GNUTLS_CRD_PSK, pcred);
+	assert(res >= 0);
+
+	res = gnutls_priority_set_direct(session, "NORMAL:-KX-ALL:+ECDHE-PSK:+DHE-PSK:+PSK:"VERS_STR, NULL);
+	assert(res >= 0);
+
+	memdata.data = data;
+	memdata.size = size;
+
+	gnutls_transport_set_push_function(session, mem_push);
+	gnutls_transport_set_pull_function(session, mem_pull);
+	gnutls_transport_set_pull_timeout_function(session,
+		mem_pull_timeout);
+	gnutls_transport_set_ptr(session, &memdata);
+
+	do {
+		res = gnutls_handshake(session);
+	} while (res < 0 && gnutls_error_is_fatal(res) == 0);
+	if (res >= 0) {
+		for (;;) {
+			char buf[16384];
+			res = gnutls_record_recv(session, buf, sizeof(buf));
+			if (res <= 0) {
+				break;
+			}
+		}
+	}
+
+	gnutls_deinit(session);
+	gnutls_psk_free_client_credentials(pcred);
+	return 0;
+}