Move test utility functions to a common place.

src/platform/vboot_reference/tests/firmware_rollback_tests.c

Index: src/platform/vboot_reference/tests/firmware_rollback_tests.c
diff --git a/src/platform/vboot_reference/tests/firmware_rollback_tests.c b/src/platform/vboot_reference/tests/firmware_rollback_tests.c
index 19ac850c4f64e52b963ce4d15a690199e6d7181d..0df0c3c2dedc67107c571d279dd47fac3f61454e 100644
--- a/src/platform/vboot_reference/tests/firmware_rollback_tests.c
+++ b/src/platform/vboot_reference/tests/firmware_rollback_tests.c
@@ -15,73 +15,6 @@
 #include "rollback_index.h"
 #include "test_common.h"
 
-/* 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) {
-  FirmwareImage* image = NULL;
-  uint8_t* firmware_blob = NULL;
-  const char* firmare_sign_key_pub_file = "testkeys/key_rsa1024.keyb";
-  uint8_t* firmware_sign_key = NULL;
-  const char* root_key_file = "testkeys/key_rsa8192.pem";
-  const char* firmware_key_file = "testkeys/key_rsa1024.pem";
-  uint64_t len;
-  firmware_sign_key = BufferFromFile(firmare_sign_key_pub_file,
-                                     &len);
-  if (!firmware_sign_key)
-    return NULL;
-
-  image = FirmwareImageNew();
-  if (!image)
-    return NULL;
-
-  Memcpy(image->magic, FIRMWARE_MAGIC, FIRMWARE_MAGIC_SIZE);
-  image->firmware_sign_algorithm = 0;  /* RSA1024/SHA1 */
-  image->firmware_sign_key = (uint8_t*) Malloc(
-      RSAProcessedKeySize(image->firmware_sign_algorithm));
-  Memcpy(image->firmware_sign_key, firmware_sign_key,
-         RSAProcessedKeySize(image->firmware_sign_algorithm));
-  image->firmware_key_version = firmware_key_version;
-  Free(firmware_sign_key);
-
-  /* Update correct header length. */
-  image->header_len = GetFirmwareHeaderLen(image);
-
-  /* Calculate SHA-512 digest on header and populate header_checksum. */
-  CalculateFirmwareHeaderChecksum(image, image->header_checksum);
-
-  /* Populate firmware and preamble with dummy data. */
-  image->firmware_version = firmware_version;
-  image->firmware_len = 1;
-  image->preamble_signature = image->firmware_signature = NULL;
-  Memset(image->preamble, 'P', FIRMWARE_PREAMBLE_SIZE);
-  image->firmware_data = Malloc(image->firmware_len);
-  Memset(image->firmware_data, 'F', image->firmware_len);
-
-  /* Generate and populate signatures. */
-  if (!AddFirmwareKeySignature(image, root_key_file)) {
-    fprintf(stderr, "Couldn't create key signature.\n");
-    FirmwareImageFree(image);
-    return NULL;
-  }
-
-  if (!AddFirmwareSignature(image, firmware_key_file)) {
-    fprintf(stderr, "Couldn't create firmware and preamble signature.\n");
-    FirmwareImageFree(image);
-    return NULL;
-  }
-  if (is_corrupt) {
-    /* Invalidate image. */
-    Memset(image->firmware_data, 'X', image->firmware_len);
-  }
-
-  firmware_blob = GetFirmwareBlob(image, &len);
-  FirmwareImageFree(image);
-  return firmware_blob;
-}
-
 /* Tests that check for correctness of the VerifyFirmwareDriver_f() logic
  * and rollback prevention. */
 void VerifyFirmwareDriverTest(void) {