Added TPM command to read space permissions, and a correctness test.

src/testsuite/spaceperm.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.
+ */
+
+/* Test of space permissions retrieval.  The spaces 0xcafe and 0xcaff must have
+ * already been defined (by running, for instance, the "redefine" test).
+ */
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <tss/tcs.h>
+
+#include "tlcl.h"
+
+#define INDEX0 0xcafe
+#define INDEX1 0xcaff
+
+int main(int argc, char** argv) {
+  uint32_t perm;
+  uint32_t perm_pp_gl = TPM_NV_PER_PPWRITE | TPM_NV_PER_GLOBALLOCK;
+  uint32_t perm_pp = TPM_NV_PER_PPWRITE;
+  uint32_t result;
+
+  TlclLibInit();
+
+#if !USE_TPM_EMULATOR
+  TlclStartup();
+  TlclContinueSelfTest();
+#endif
+
+  TlclAssertPhysicalPresence();
+
+  result = TlclGetPermissions(INDEX0, &perm);
+  assert(result == TPM_SUCCESS);
+  printf("permissions for INDEX0 = 0x%x\n", perm);
+  assert((perm & perm_pp_gl) == perm_pp_gl);
+
+  result = TlclGetPermissions(INDEX1, &perm);
+  assert(result == TPM_SUCCESS);
+  printf("permissions for INDEX1 = 0x%x\n", perm);
+  assert((perm & perm_pp) == perm_pp);
+
+  printf("Test completed successfully\n");
+  exit(0);
+}