VBoot Reference: Add kernel rollback prevention and choosing logic.

src/platform/vboot_reference/tests/test_common.h

 /* 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.
  *
  */
 
 #ifndef VBOOT_REFERENCE_TEST_COMMON_H_
 #define VBOOT_REFERENCE_TEST_COMMON_H_
 
 #include <stdint.h>
@@ skipping 32 matching lines @@
                                      const char* firmware_key_file,
                                      const char* kernel_key_file);
 uint8_t* GenerateTestKernelBlob(int firmware_sign_algorithm,
                                 int kernel_sign_algorithm,
                                 const uint8_t* kernel_sign_key,
                                 int kernel_key_version,
                                 int kernel_version,
                                 int kernel_len,
                                 const char* firmware_key_file,
                                 const char* kernel_key_file);
+
 /* Generates a test firmware image for rollback tests with a given
  * [firmware_key_version] and [firmware_version]. If [is_corrupt] is 1,
  * then the image has invalid signatures and will fail verification. */
-uint8_t* GenerateRollbackTestImage(int firmware_key_version,
-                                   int firmware_version,
-                                   int is_corrupt);
+uint8_t* GenerateRollbackTestFirmwareBlob(int firmware_key_version,
+                                          int firmware_version,
+                                          int is_corrupt);
 
+/* Generates a test kernel iamge for rollback tests with a given
+ * [kernel_key_version} and [kernel_version]. If [is_corrupt] is 1,
+ * then the image has invalid signatures and will fail verification. */
+uint8_t* GenerateRollbackTestKernelBlob(int kernel_key_version,
+                                        int kernel_version,
+                                        int is_corrupt);
 #endif  /* VBOOT_REFERENCE_TEST_COMMON_H_ */