From 991ff882fd128f2010728c701cb1374fb8e43e10 Mon Sep 17 00:00:00 2001
From: Jouni Malinen <j@w1.fi>
Date: Sun, 2 Jun 2019 13:17:31 +0300
Subject: [PATCH] tests: New style fuzzing tool for X.509 certificate parsing

This is a newer version of tests/test-x509 tool.

Signed-off-by: Jouni Malinen <j@w1.fi>
---
 tests/fuzzing/x509/Makefile      |  20 ++++++++++++++++++++
 tests/fuzzing/x509/corpus/ca.der | Bin 0 -> 560 bytes
 tests/fuzzing/x509/x509.c        |  25 +++++++++++++++++++++++++
 3 files changed, 45 insertions(+)
 create mode 100644 tests/fuzzing/x509/Makefile
 create mode 100644 tests/fuzzing/x509/corpus/ca.der
 create mode 100644 tests/fuzzing/x509/x509.c

diff --git a/tests/fuzzing/x509/Makefile b/tests/fuzzing/x509/Makefile
new file mode 100644
index 000000000..d7f751a9d
--- /dev/null
+++ b/tests/fuzzing/x509/Makefile
@@ -0,0 +1,20 @@
+all: x509
+include ../rules.include
+
+LIBS += $(SRC)/common/libcommon.a
+LIBS += $(SRC)/crypto/libcrypto.a
+LIBS += $(SRC)/tls/libtls.a
+LIBS += $(SRC)/utils/libutils.a
+
+ELIBS += $(SRC)/crypto/libcrypto.a
+ELIBS += $(SRC)/tls/libtls.a
+
+x509: x509.o $(OBJS) $(LIBS)
+	$(LDO) $(LDFLAGS) -o $@ $^ $(LIBS) $(ELIBS)
+
+clean:
+	$(MAKE) -C $(SRC) clean
+	$(MAKE) -C $(WPAS_SRC) clean
+	rm -f x509 *~ *.o *.d ../*~ ../*.o ../*.d
+
+-include $(OBJS:%.o=%.d)
diff --git a/tests/fuzzing/x509/corpus/ca.der b/tests/fuzzing/x509/corpus/ca.der
new file mode 100644
index 0000000000000000000000000000000000000000..09d5fa051bf308db6af69760ef3b1dc3776b6eb8
GIT binary patch
literal 560
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zU(b~($KpOWOU7$PW-Rf)!=ksN@IbEhI>skEJ7%6a*R(H7<ItL{DaYC;ylu4+C_MV#
zrXb~!W0K*kwrati$*+!m{_OYj%BRK&*T4K)I5F?aT~RwV>oszR56QpXZL<ILru1XS
N0$&6wZTURu1pwgW&Q$;a

literal 0
HcmV?d00001

diff --git a/tests/fuzzing/x509/x509.c b/tests/fuzzing/x509/x509.c
new file mode 100644
index 000000000..2969fea3e
--- /dev/null
+++ b/tests/fuzzing/x509/x509.c
@@ -0,0 +1,25 @@
+/*
+ * Testing tool for X.509v3 routines
+ * Copyright (c) 2006-2019, Jouni Malinen <j@w1.fi>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#include "includes.h"
+
+#include "common.h"
+#include "tls/x509v3.h"
+#include "../fuzzer-common.h"
+
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
+{
+	struct x509_certificate *cert;
+
+	wpa_fuzzer_set_debug_level();
+
+	cert = x509_certificate_parse(data, size);
+	x509_certificate_free(cert);
+	return 0;
+}