test: fuzz: Add framework for fuzzing
Add the basic infrastructure for declaring fuzz tests and a command to
invoke them.
Signed-off-by: Andrew Scull <ascull@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/include/test/fuzz.h b/include/test/fuzz.h
new file mode 100644
index 0000000..d4c5754
--- /dev/null
+++ b/include/test/fuzz.h
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (c) 2022 Google, Inc.
+ * Written by Andrew Scull <ascull@google.com>
+ */
+
+#ifndef __TEST_FUZZ_H
+#define __TEST_FUZZ_H
+
+#include <linker_lists.h>
+#include <linux/types.h>
+
+/**
+ * struct fuzz_test - Information about a fuzz test
+ *
+ * @name: Name of fuzz test
+ * @func: Function to call to perform fuzz test on an input
+ * @flags: Flags indicate pre-conditions for fuzz test
+ */
+struct fuzz_test {
+ const char *name;
+ int (*func)(const uint8_t * data, size_t size);
+ int flags;
+};
+
+/**
+ * FUZZ_TEST() - register a fuzz test
+ *
+ * The fuzz test function must return 0 as other values are reserved for future
+ * use.
+ *
+ * @_name: the name of the fuzz test function
+ * @_flags: an integer field that can be evaluated by the fuzzer
+ * implementation
+ */
+#define FUZZ_TEST(_name, _flags) \
+ ll_entry_declare(struct fuzz_test, _name, fuzz_tests) = { \
+ .name = #_name, \
+ .func = _name, \
+ .flags = _flags, \
+ }
+
+/** Get the start of the list of fuzz tests */
+#define FUZZ_TEST_START() \
+ ll_entry_start(struct fuzz_test, fuzz_tests)
+
+/** Get the number of elements in the list of fuzz tests */
+#define FUZZ_TEST_COUNT() \
+ ll_entry_count(struct fuzz_test, fuzz_tests)
+
+#endif /* __TEST_FUZZ_H */