Move test utility functions to a common place.

Also removes the dev_mode flag from Firmware Image verification as key signature for the firmware should be checked whether or not dev mode is enabled.

BUG=670
TEST=All tests still pass.

Merge remote branch 'refs/remotes/origin/master' into fixtests

Fix tests, remove dev mode. Move common code.

Review URL: http://codereview.chromium.org/1280002

1 files changed, 186 insertions, 1 deletions

diff --git a/tests/test_common.c b/tests/test_common.c
index 4a92f7d8..5cc0805d 100644
--- a/tests/test_common.c
+++ b/tests/test_common.c
@@ -9,9 +9,13 @@
 
 #include <stdio.h>
 
+#include "file_keys.h"
+#include "rsa_utility.h"
+#include "utility.h"
+
 /* ANSI Color coding sequences. */
 #define COL_GREEN "\e[1;32m"
-#define COL_RED "\e[0;31m]"
+#define COL_RED "\e[0;31m"
 #define COL_STOP "\e[m"
 
 /* Global test success flag. */
@@ -28,3 +32,184 @@ int TEST_EQ(int result, int expected_result, char* testname) {
     return 0;
   }
 }
+
+FirmwareImage* GenerateTestFirmwareImage(int algorithm,
+                                         const uint8_t* firmware_sign_key,
+                                         int firmware_key_version,
+                                         int firmware_version,
+                                         int firmware_len,
+                                         const char* root_key_file,
+                                         const char* firmware_key_file) {
+  FirmwareImage* image = FirmwareImageNew();
+
+  Memcpy(image->magic, FIRMWARE_MAGIC, FIRMWARE_MAGIC_SIZE);
+  image->firmware_sign_algorithm = algorithm;
+  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;
+
+  /* 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 = firmware_len;
+  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;
+  }
+  return image;
+}
+
+uint8_t* GenerateTestFirmwareBlob(int algorithm,
+                                  const uint8_t* firmware_sign_key,
+                                  int firmware_key_version,
+                                  int firmware_version,
+                                  int firmware_len,
+                                  const char* root_key_file,
+                                  const char* firmware_key_file) {
+  FirmwareImage* image = NULL;
+  uint8_t* firmware_blob = NULL;
+  uint64_t firmware_blob_len = 0;
+
+  image = GenerateTestFirmwareImage(algorithm,
+                                    firmware_sign_key,
+                                    firmware_key_version,
+                                    firmware_version,
+                                    firmware_len,
+                                    root_key_file,
+                                    firmware_key_file);
+  firmware_blob = GetFirmwareBlob(image, &firmware_blob_len);
+  FirmwareImageFree(image);
+  return firmware_blob;
+}
+
+uint8_t* GenerateRollbackTestImage(int firmware_key_version,
+                                   int firmware_version,
+                                   int is_corrupt) {
+  FirmwareImage* image = NULL;
+  uint64_t len;
+  uint8_t* firmware_blob = NULL;
+  uint8_t* firmware_sign_key = NULL;
+
+  firmware_sign_key = BufferFromFile("testkeys/key_rsa1024.keyb",
+                                     &len);
+  if (!firmware_sign_key)
+    return NULL;
+  image = GenerateTestFirmwareImage(0,  /* RSA1024/SHA1 */
+                                    firmware_sign_key,
+                                    firmware_key_version,
+                                    firmware_version,
+                                    1,  /* Firmware length. */
+                                    "testkeys/key_rsa8192.pem",
+                                    "testkeys/key_rsa1024.pem");
+  if (!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;
+}
+
+
+KernelImage* GenerateTestKernelImage(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) {
+  KernelImage* image = KernelImageNew();
+
+  Memcpy(image->magic, KERNEL_MAGIC, KERNEL_MAGIC_SIZE);
+  image->header_version = 1;
+  image->firmware_sign_algorithm = firmware_sign_algorithm;
+  image->kernel_sign_algorithm = kernel_sign_algorithm;
+  image->kernel_key_version = kernel_key_version;
+  image->kernel_sign_key = (uint8_t*) Malloc(
+      RSAProcessedKeySize(image->kernel_sign_algorithm));
+  Memcpy(image->kernel_sign_key, kernel_sign_key,
+         RSAProcessedKeySize(image->kernel_sign_algorithm));
+
+  /* Update correct header length. */
+  image->header_len = GetKernelHeaderLen(image);
+
+  /* Calculate SHA-512 digest on header and populate header_checksum. */
+  CalculateKernelHeaderChecksum(image, image->header_checksum);
+
+  /* Populate kernel options and data with dummy data. */
+  image->kernel_version = kernel_version;
+  image->options.version[0] = 1;
+  image->options.version[1] = 0;
+  Memset(image->options.cmd_line, 0, sizeof(image->options.cmd_line));
+  image->options.kernel_len = kernel_len;
+  image->options.kernel_load_addr = 0;
+  image->options.kernel_entry_addr = 0;
+  image->kernel_key_signature = image->kernel_signature = NULL;
+  image->kernel_data = Malloc(kernel_len);
+  Memset(image->kernel_data, 'F', kernel_len);
+
+  /* Generate and populate signatures. */
+  if (!AddKernelKeySignature(image, firmware_key_file)) {
+    fprintf(stderr, "Couldn't create key signature.\n");
+    KernelImageFree(image);
+    return NULL;
+  }
+
+  if (!AddKernelSignature(image, kernel_key_file)) {
+    fprintf(stderr, "Couldn't create kernel option and kernel signature.\n");
+    KernelImageFree(image);
+    return NULL;
+  }
+
+  return image;
+}
+
+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) {
+  KernelImage* image = NULL;
+  uint8_t* kernel_blob = NULL;
+  uint64_t kernel_blob_len = 0;
+
+  image = GenerateTestKernelImage(firmware_sign_algorithm,
+                                  kernel_sign_algorithm,
+                                  kernel_sign_key,
+                                  kernel_key_version,
+                                  kernel_version,
+                                  kernel_len,
+                                  firmware_key_file,
+                                  kernel_key_file);
+
+  kernel_blob = GetKernelBlob(image, &kernel_blob_len);
+  KernelImageFree(image);
+  return kernel_blob;
+}