VBoot Reference: 18 Exabytes ought to be enough for everybody

src/platform/vboot_reference/tests/big_kernel_tests.c

+/* Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ *
+ * Tests if firmware image library deals with very large firmware. This
+ * is a quick and dirty test for detecting integer overflow issues.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "file_keys.h"
+#include "kernel_image.h"
+#include "rsa_utility.h"
+#include "test_common.h"
+#include "utility.h"
+
+/* Choose a kernel size greater than the range of 32-bits unsigned. */
+#define BIG_KERNEL_SIZE ((uint64_t) 0x100000000)
+
+#define FIRMWARE_KEY_BASE_NAME "testkeys/key_rsa2048"
+#define KERNEL_KEY_BASE_NAME "testkeys/key_rsa1024"
+
+const char* kFirmwareKeyPublicFile = FIRMWARE_KEY_BASE_NAME ".keyb";
+const char* kFirmwareKeyFile = FIRMWARE_KEY_BASE_NAME ".pem";
+const char* kKernelKeyPublicFile = KERNEL_KEY_BASE_NAME ".keyb";
+const char* kKernelKeyFile = KERNEL_KEY_BASE_NAME ".pem";
+
+int BigKernelTest() {
+  int error_code = 0;
+  uint64_t len;
+  uint8_t* kernel_blob = NULL;
+  RSAPublicKey* firmware_key = RSAPublicKeyFromFile(kFirmwareKeyPublicFile);
+  uint8_t* firmware_key_blob = BufferFromFile(kFirmwareKeyPublicFile, &len);
+  uint8_t* kernel_sign_key_buf = BufferFromFile(kKernelKeyPublicFile, &len);
+  fprintf(stderr, "Generating Big KernelImage...");
+  KernelImage* image =
+      GenerateTestKernelImage(3,  /* RSA2048/SHA1 */
+                              0,  /* RSA1024/SHA1 */
+                              kernel_sign_key_buf,
+                              1,  /* Kernel Key Version. */
+                              1,  /* Kernel Version */
+                              BIG_KERNEL_SIZE,
+                              kFirmwareKeyFile,
+                              kKernelKeyFile,
+                              'K');  /* Kernel Data Fill. */
+  if (!firmware_key || !firmware_key_blob || !kernel_sign_key_buf || !image) {
+    error_code = 1;
+    goto cleanup;
+  }
+  fprintf(stderr, "Done.\n");
+  TEST_EQ(VerifyKernelImage(firmware_key, image, 0),
+          VERIFY_FIRMWARE_SUCCESS,
+          "Big KernelImage Verification");
+  kernel_blob = GetKernelBlob(image, &len);
+  TEST_EQ(VerifyKernel(firmware_key_blob, kernel_blob, 0),
+          VERIFY_FIRMWARE_SUCCESS,
+          "Big Kernel Blob Verification");
+
+cleanup:
+  Free(kernel_blob);
+  KernelImageFree(image);
+  Free(kernel_sign_key_buf);
+  Free(firmware_key_blob);
+  RSAPublicKeyFree(firmware_key);
+  return error_code;
+}
+
+int main(int argc, char* argv[1])
+{
+  int error_code = 0;
+  error_code = BigKernelTest();
+  if (!gTestSuccess)
+    error_code = 255;
+  return error_code;
+}