From d3bd576c469a06bc1cef1be1149bf1de03ae3179 Mon Sep 17 00:00:00 2001
From: Tobias Brunner <tobias@strongswan.org>
Date: Thu, 26 Jul 2018 10:01:46 +0200
Subject: [PATCH] fuzz: Add fuzzer for identification_t

---
 fuzz/.gitignore  |  1 +
 fuzz/Makefile.am |  5 ++++-
 fuzz/fuzz_ids.c  | 33 +++++++++++++++++++++++++++++++++
 3 files changed, 38 insertions(+), 1 deletion(-)
 create mode 100644 fuzz/fuzz_ids.c

diff --git a/fuzz/.gitignore b/fuzz/.gitignore
index 765d23ae2..0927874fb 100644
--- a/fuzz/.gitignore
+++ b/fuzz/.gitignore
@@ -1,4 +1,5 @@
 fuzz_certs
 fuzz_crls
+fuzz_ids
 fuzz_pa_tnc
 fuzz_pb_tnc
diff --git a/fuzz/Makefile.am b/fuzz/Makefile.am
index de0a2604d..55ead622e 100644
--- a/fuzz/Makefile.am
+++ b/fuzz/Makefile.am
@@ -25,7 +25,7 @@ pb_tnc_ldflags = \
 	$(top_builddir)/src/libtncif/.libs/libtncif.a \
 	$(fuzz_ldflags)
 
-FUZZ_TARGETS=fuzz_certs fuzz_crls fuzz_pa_tnc fuzz_pb_tnc
+FUZZ_TARGETS=fuzz_certs fuzz_crls fuzz_ids fuzz_pa_tnc fuzz_pb_tnc
 
 all-local: $(FUZZ_TARGETS)
 
@@ -37,6 +37,9 @@ fuzz_certs: fuzz_certs.c ${libfuzzer}
 fuzz_crls: fuzz_crls.c ${libfuzzer}
 	$(CC) $(AM_CPPFLAGS) $(CFLAGS) -o $@ $< $(fuzz_ldflags)
 
+fuzz_ids: fuzz_ids.c ${libfuzzer}
+	$(CC) $(AM_CPPFLAGS) $(CFLAGS) -o $@ $< $(fuzz_ldflags)
+
 fuzz_pa_tnc: fuzz_pa_tnc.c ${libfuzzer}
 	$(CC) $(AM_CPPFLAGS) $(CFLAGS) -o $@ $< $(pa_tnc_ldflags)
 
diff --git a/fuzz/fuzz_ids.c b/fuzz/fuzz_ids.c
new file mode 100644
index 000000000..8840c6e25
--- /dev/null
+++ b/fuzz/fuzz_ids.c
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2018 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 <library.h>
+#include <utils/debug.h>
+
+int LLVMFuzzerTestOneInput(const uint8_t *buf, size_t len)
+{
+	identification_t *id;
+	chunk_t chunk;
+
+	dbg_default_set_level(-1);
+	library_init(NULL, "fuzz_ids");
+
+	chunk = chunk_create((u_char*)buf, len);
+	id = identification_create_from_data(chunk);
+	DESTROY_IF(id);
+
+	library_deinit();
+	return 0;
+}