VBoot Reference: 18 Exabytes ought to be enough for everybody

src/platform/vboot_reference/tests/big_firmware_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 "firmware_image.h"
+#include "rsa_utility.h"
+#include "test_common.h"
+#include "utility.h"
+
+/* Choose a firmware size greater than the range of 32-bits unsigned. */
+#define BIG_FIRMWARE_SIZE ((uint64_t) 0x100000000)
+
+#define ROOT_KEY_BASE_NAME "testkeys/key_rsa8192"
+#define FIRMWARE_KEY_BASE_NAME "testkeys/key_rsa1024"
+
+const char* kRootKeyPublicFile = ROOT_KEY_BASE_NAME ".keyb";
+const char* kRootKeyFile = ROOT_KEY_BASE_NAME ".pem";
+const char* kFirmwareKeyPublicFile = FIRMWARE_KEY_BASE_NAME ".keyb";
+const char* kFirmwareKeyFile = FIRMWARE_KEY_BASE_NAME ".pem";
+
+int BigFirmwareTest(void) {
+  int error_code = 0;
+  uint64_t len;
+  uint8_t* firmware_blob = NULL;
+  RSAPublicKey* root_key = RSAPublicKeyFromFile(kRootKeyPublicFile);
+  uint8_t* root_key_blob = BufferFromFile(kRootKeyPublicFile, &len);
+  uint8_t* firmware_sign_key_buf= BufferFromFile(kFirmwareKeyPublicFile, &len);
+  fprintf(stderr, "Generating Big FirmwareImage...");
+  FirmwareImage* image =
+      GenerateTestFirmwareImage(0, /* RSA1024/SHA1 */
+                                firmware_sign_key_buf,
+                                1,  /* Firmware Key Version. */
+                                1,  /* Firmware Version */
+                                BIG_FIRMWARE_SIZE,
+                                kRootKeyFile,
+                                kFirmwareKeyFile,
+                                'F');  /* Firmware data fill. */
+  if (!root_key || !root_key_blob || !firmware_sign_key_buf || !image) {
+    error_code = 1;
+    goto cleanup;
+  }
+  fprintf(stderr, "Done.\n");
+  TEST_EQ(VerifyFirmwareImage(root_key, image),
+          VERIFY_FIRMWARE_SUCCESS,
+          "Big FirmwareImage Verification");
+  firmware_blob = GetFirmwareBlob(image, &len);
+  TEST_EQ(VerifyFirmware(root_key_blob, firmware_blob),
+          VERIFY_FIRMWARE_SUCCESS,
+          "Big Firmware Blob Verification");
+
+ cleanup:
+  Free(firmware_blob);
+  FirmwareImageFree(image);
+  Free(firmware_sign_key_buf);
+  RSAPublicKeyFree(root_key);
+  return error_code;
+}
+
+int main(int argc, char* argv[1])
+{
+  int error_code = 0;
+  error_code = BigFirmwareTest();
+  if (!gTestSuccess)
+    error_code = 255;
+  return error_code;
+}