1 files changed, 98 insertions, 0 deletions
diff --git a/tests/src/ufdt_verify_overlay_app.cpp b/tests/src/ufdt_verify_overlay_app.cpp
new file mode 100644
index 0000000..0373cee
--- /dev/null
+++ b/tests/src/ufdt_verify_overlay_app.cpp
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <fstream>
+
+#include "ufdt_test_overlay.h"
+
+extern "C" {
+
+#include "ufdt_overlay.h"
+#include "libufdt_sysdeps.h"
+
+}
+
+size_t read_file_to_buf(const char *filename, char** buf) {
+    size_t size = 0;
+    std::ifstream file(filename, std::ios::binary | std::ios::in);
+
+    if (!file) {
+        return size;
+    }
+
+    file.seekg(0, file.end);
+    size = file.tellg();
+    file.seekg(0, std::ios::beg);
+
+    *buf = new char[size];
+    file.read(*buf, size);
+    return size;
+}
+
+int verify_overlay_files(const char *final_filename,
+                         const char *overlay_filename) {
+    char *final_buf = nullptr;
+    char *overlay_buf = nullptr;
+    struct fdt_header *blob = nullptr;
+    int result = 1;
+    size_t final_size = 0, overlay_size = 0;
+
+    final_size = read_file_to_buf(final_filename, &final_buf);
+    if (final_size == 0) {
+        fprintf(stderr, "Cannot load final DTB: %s \n", final_filename);
+        goto end;
+    }
+
+    overlay_size = read_file_to_buf(overlay_filename, &overlay_buf);
+    if (overlay_size == 0) {
+        fprintf(stderr, "Cannot load DTB Overlay: %s\n", overlay_filename);
+        goto end;
+    }
+
+    blob = ufdt_install_blob(final_buf, final_size);
+    if (!blob) {
+        fprintf(stderr, "ufdt_install_blob() returns null\n");
+        goto end;
+    }
+
+    result = ufdt_verify_dtbo(blob, final_size, overlay_buf, overlay_size);
+
+    if (result != 0) {
+        fprintf(stderr, "bad overlay error: %s\n", overlay_filename);
+    }
+
+end:
+    // Do not dto_free(blob) - it's the same as final_buf.
+    if (overlay_buf) dto_free(overlay_buf);
+    if (final_buf) dto_free(final_buf);
+
+    return result;
+}
+
+int main(int argc, char **argv) {
+  if (argc < 3) {
+    fprintf(stderr, "Usage: %s <final_file> <overlay_file>\n", argv[0]);
+    return 1;
+  }
+
+  const char *final_file = argv[1];
+  const char *overlay_file = argv[2];
+  int ret = verify_overlay_files(final_file, overlay_file);
+
+  return ret == 0 ? ret : 1;
+}