Various bug fixes to tpm_lite. Some changes to the test suite.

firmware/stub/tpm_lite_stub.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.
  *
  * Stub implementations of utility functions which call their linux-specific
  * equivalents.
  */
 
 #define _STUB_IMPLEMENTATION_
 #include "tlcl.h"
@@ skipping 38 matching lines @@
   }
 }
 
 
 /* Executes a command on the TPM.
  */
 static void TpmExecute(const uint8_t *in, const uint32_t in_len,
                 uint8_t *out, uint32_t *pout_len) {
   uint8_t response[TPM_MAX_COMMAND_SIZE];
   if (in_len <= 0) {
-    error("invalid command length %d\n", in_len);
+    error("invalid command length %d for command 0x%x\n", in_len, in[9]);
   } else if (tpm_fd < 0) {
     error("the TPM device was not opened.  Forgot to call TlclLibInit?\n");
   } else {
     int n = write(tpm_fd, in, in_len);
     if (n != in_len) {
       error("write failure to TPM device: %s\n", strerror(errno));
     }
     n = read(tpm_fd, response, sizeof(response));
     if (n == 0) {
       error("null read from TPM device\n");
@@ skipping 99 matching lines @@
   response_tag = TpmTag(response);
   assert(
     (tag == TPM_TAG_RQU_COMMAND &&
      response_tag == TPM_TAG_RSP_COMMAND) ||
     (tag == TPM_TAG_RQU_AUTH1_COMMAND &&
      response_tag == TPM_TAG_RSP_AUTH1_COMMAND) ||
     (tag == TPM_TAG_RQU_AUTH2_COMMAND &&
      response_tag == TPM_TAG_RSP_AUTH2_COMMAND));
   assert(response_length == TpmResponseSize(response));
 }