VBoot Reference: Add kernel rollback prevention and choosing logic.

src/platform/vboot_reference/tests/firmware_rollback_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 for checking firmware rollback-prevention logic.
  */
 
 #include <stdio.h>
 #include <stdlib.h>
 
@@ skipping 12 matching lines @@
   uint8_t* corrupt_firmwareA = NULL;
   uint8_t* corrupt_firmwareB = NULL;
   uint64_t len;
   uint8_t* root_key_pub = BufferFromFile("testkeys/key_rsa8192.keyb",
                                          &len);
 
   /* Initialize rollback index state. */
   g_firmware_key_version = 1;
   g_firmware_version = 1;
 
-  valid_firmwareA = GenerateRollbackTestImage(1, 1, 0);
-  valid_firmwareB = GenerateRollbackTestImage(1, 1, 0);
-  corrupt_firmwareA = GenerateRollbackTestImage(1, 1, 1);
-  corrupt_firmwareB = GenerateRollbackTestImage(1, 1, 1);
+  valid_firmwareA = GenerateRollbackTestFirmwareBlob(1, 1, 0);
+  valid_firmwareB = GenerateRollbackTestFirmwareBlob(1, 1, 0);
+  corrupt_firmwareA = GenerateRollbackTestFirmwareBlob(1, 1, 1);
+  corrupt_firmwareB = GenerateRollbackTestFirmwareBlob(1, 1, 1);
 
   TEST_EQ(VerifyFirmwareDriver_f(root_key_pub,
                                  valid_firmwareA, valid_firmwareB),
           BOOT_FIRMWARE_A_CONTINUE,
           "Firmware A (Valid with current version), "
           "Firmware B (Valid with current version)");
   TEST_EQ(VerifyFirmwareDriver_f(root_key_pub,
                                  corrupt_firmwareA, valid_firmwareB),
           BOOT_FIRMWARE_B_CONTINUE,
           "Firmware A (Corrupt with current version), "
@@ skipping 22 matching lines @@
   Free(corrupt_firmwareB);
 }
 
 int main(int argc, char* argv[]) {
   int error_code = 0;
   VerifyFirmwareDriverTest();
   if (!gTestSuccess)
     error_code = 255;
   return error_code;
 }