Upgrade to tpm-emulator version 0.7.

mtm/mtm_capability.c

+/* Software-based Mobile Trusted Module (MTM) Emulator
+ * Copyright (C) 2004-2010 Mario Strasser <mast@gmx.net>
+ *
+ * This module is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation; either version 2 of the License,
+ * or (at your option) any later version.
+ *
+ * This module is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * $Id$
+ */
+
+#include "mtm_structures.h"
+#include "mtm_marshalling.h"
+#include "mtm_data.h"
+#include "tpm/tpm_data.h"
+#include "tpm/tpm_commands.h"
+
+static inline TPM_RESULT return_UINT32(UINT32 *respSize, BYTE **resp, UINT32 value)
+{
+  UINT32 len = *respSize = 4;
+  BYTE *ptr = *resp = tpm_malloc(*respSize);
+  if (ptr == NULL || tpm_marshal_UINT32(&ptr, &len, value)) {
+    tpm_free(*resp);
+    return TPM_FAIL;
+  }
+  return TPM_SUCCESS;
+}
+
+static inline TPM_RESULT return_BOOL(UINT32 *respSize, BYTE **resp, BOOL value)
+{
+  UINT32 len = *respSize = 1;
+  BYTE *ptr = *resp = tpm_malloc(*respSize);
+  if (ptr == NULL || tpm_marshal_BOOL(&ptr, &len, value)) {
+    tpm_free(*resp);
+    return TPM_FAIL;
+  }
+  return TPM_SUCCESS;
+}
+
+#define return_BYTE return_BOOL
+
+static TPM_RESULT cap_ord(UINT32 subCapSize, BYTE *subCap,
+                          UINT32 *respSize, BYTE **resp)
+{
+  TPM_COMMAND_CODE ord;
+  if (tpm_unmarshal_TPM_COMMAND_CODE(&subCap, &subCapSize, &ord))
+    return TPM_BAD_MODE;
+  switch (ord) {
+    case MTM_ORD_InstallRIM:
+    case MTM_ORD_LoadVerificationKey:
+    case MTM_ORD_LoadVerificationRootKeyDisable:
+    case MTM_ORD_VerifyRIMCert:
+    case MTM_ORD_VerifyRIMCertAndExtend:
+    case MTM_ORD_IncrementBootstrapCounter:
+    case MTM_ORD_SetVerifiedPCRSelection:
+      return return_BOOL(respSize, resp, TRUE);
+    default:
+      return return_BOOL(respSize, resp, FALSE);
+  }
+}
+
+static TPM_RESULT cap_mtm_permanent_data(UINT32 subCapSize, BYTE *subCap,
+                                                                       UINT32 *respSize, BYTE **resp)
+{
+  UINT32 subCapVal, len;
+  BYTE* ptr;
+
+/* unmarshal subCap */
+  if (tpm_unmarshal_UINT32(&subCap, &subCapSize, &subCapVal) != 0)
+    return TPM_BAD_PARAMETER;
+  switch (subCapVal) {
+
+    case 1:
+      return TPM_FAIL;
+      break;
+
+    case 2:
+      *respSize = len = sizeof_TPM_PCR_SELECTION(mtmData.permanent.data.verifiedPCRs);
+      *resp = ptr = tpm_malloc(*respSize);
+      if (*resp == NULL 
+          || tpm_marshal_TPM_PCR_SELECTION(&ptr, &len, &mtmData.permanent.data.verifiedPCRs)) {
+        tpm_free(*resp);
+        return TPM_FAIL;
+      }
+
+    case 3:
+      return return_UINT32(respSize, resp,
+        tpmData.permanent.data.counters[MTM_COUNTER_SELECT_BOOTSTRAP].counter);
+
+    case 4:
+      return return_UINT32(respSize, resp, mtmData.permanent.data.counterRimProtectId);
+
+    case 5:
+      return return_UINT32(respSize, resp, mtmData.permanent.data.counterStorageProtectId);
+
+    case 6:
+      return return_BYTE(respSize, resp, mtmData.permanent.data.specMajor);
+
+    case 7:
+      return return_BYTE(respSize, resp, mtmData.permanent.data.specMinor);
+
+    case 8:
+      return return_BYTE(respSize, resp, mtmData.permanent.data.loadVerificationKeyMethods);
+
+    default:
+      return TPM_BAD_PARAMETER;
+
+  }
+  return TPM_SUCCESS;
+}
+
+TPM_RESULT MTM_GetCapability(TPM_CAPABILITY_AREA capArea, UINT32 subCapSize,
+                             BYTE *subCap, UINT32 *respSize, BYTE **resp)
+{
+  info("MTM_GetCapability()");
+  switch (capArea) {
+
+    case TPM_CAP_ORD:
+      debug("[MTM_CAP_ORD]");
+      TPM_RESULT res = cap_ord(subCapSize, subCap, respSize, resp);
+      if (res == TPM_SUCCESS && resp[0] == FALSE) {
+        res = TPM_GetCapability(capArea, subCapSize, subCap, respSize, resp);
+      }
+      return res;
+
+    case TPM_CAP_MTM_PERMANENT_DATA:
+      debug("[TPM_CAP_MTM_PERMANENT_DATA]");
+      return cap_mtm_permanent_data(subCapSize, subCap, respSize, resp);
+
+    default:
+      return TPM_GetCapability(capArea, subCapSize, subCap, respSize, resp);
+
+  }
+}
+