pkcs7: provide fuzz harness
This allows for pkcs7 fuzz testing with OSS-Fuzz.
Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Nayna Jain <nayna@linux.ibm.com>
diff --git a/programs/fuzz/.gitignore b/programs/fuzz/.gitignore
index 5dc0960..34e3ed0 100644
--- a/programs/fuzz/.gitignore
+++ b/programs/fuzz/.gitignore
@@ -1,6 +1,7 @@
fuzz_client
fuzz_dtlsclient
fuzz_dtlsserver
+fuzz_pkcs7
fuzz_privkey
fuzz_pubkey
fuzz_server
diff --git a/programs/fuzz/CMakeLists.txt b/programs/fuzz/CMakeLists.txt
index c7fcd35..7747744 100644
--- a/programs/fuzz/CMakeLists.txt
+++ b/programs/fuzz/CMakeLists.txt
@@ -12,6 +12,7 @@
fuzz_x509crl
fuzz_x509crt
fuzz_x509csr
+ fuzz_pkcs7
)
set(executables_with_common_c
diff --git a/programs/fuzz/fuzz_pkcs7.c b/programs/fuzz/fuzz_pkcs7.c
new file mode 100644
index 0000000..960007d
--- /dev/null
+++ b/programs/fuzz/fuzz_pkcs7.c
@@ -0,0 +1,19 @@
+#include <stdint.h>
+#include "mbedtls/pkcs7.h"
+
+int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
+#ifdef MBEDTLS_PKCS7_C
+ mbedtls_pkcs7 pkcs7;
+
+ mbedtls_pkcs7_init( &pkcs7 );
+
+ mbedtls_pkcs7_parse_der( &pkcs7, Data, Size );
+
+ mbedtls_pkcs7_free( &pkcs7 );
+#else
+ (void) Data;
+ (void) Size;
+#endif
+
+ return 0;
+}
diff --git a/programs/fuzz/fuzz_pkcs7.options b/programs/fuzz/fuzz_pkcs7.options
new file mode 100644
index 0000000..0824b19
--- /dev/null
+++ b/programs/fuzz/fuzz_pkcs7.options
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65535