cryptohome: Add stub functions to query PKCS11 set up status

pkcs11_init.cc

+// Copyright (c) 2009-2010 The Chromium OS Authors. All rights reserved.

[Greg Spencer (Chromium), 2011/04/08 20:21:45]

Should just be "2011"

[kmixter1, 2011/04/08 21:04:14]

Done.

+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Contains the implementation of class Pkcs11Init
+
+#include "pkcs11_init.h"
+
+#include <iostream>
+
+#include <base/logging.h>
+#include <base/file_util.h>
+#include <base/string_util.h>
+#include <glib.h>
+#include <opencryptoki/pkcs11.h>
+
+#include "platform.h"
+
+namespace cryptohome {
+
+const CK_SLOT_ID kDefaultTpmSlotId = 0;
+const CK_CHAR kDefaultOpencryptokiSoPin[] = "87654321";

[Greg Spencer (Chromium), 2011/04/08 20:21:45]

What are these "Opencryptoki" PINs used for, and why are they different from the
"Default" PINs?

In fact, except for the three things used in GetTpmTokenInfo, I don't see why
any of these are here...

[kmixter1, 2011/04/08 21:04:14]

So this file is a stripped down version of one that gauravsh is working on from
fes.  I removed most functions but left these thinking it would be easier to
merge for gauravsh once this is landed.  But I've removed them to keep this
simple (sorry Gaurav!)  To your original question, this is the SO that
opencryptoki initializes the TPM token to by default.  We reset it to 0s.

+const CK_CHAR kDefaultOpencryptokiUserPin[] = "12345678";
+const CK_CHAR kDefaultSoPin[] = "000000";
+const CK_CHAR kDefaultUserPin[] = "111111";
+const CK_CHAR kDefaultLabel[] = "TPM";
+const char kOpencryptokiDir[] = "/var/lib/opencryptoki";
+const char kUserTokenLink[] = "/var/lib/opencryptoki/tpm/chronos";
+const char kRootTokenLink[] = "/var/lib/opencryptoki/tpm/root";
+const char kUserTokenDir[] = "/home/chronos/user/.tpm";
+const char kRootTokenDir[] = "./chronos";
+const char kPkcs11Group[] = "pkcs11";
+const char kOldTokenEntry[] = "/var/lib/opencryptoki/pk_config_data";
+
+extern const char* kTpmOwnedFile;
+extern const std::string kDefaultSharedUser;
+
+Pkcs11Init::Pkcs11Init() {
+}
+
+Pkcs11Init::~Pkcs11Init() {
+}
+
+void Pkcs11Init::GetTpmTokenInfo(gchar **OUT_label,
+                                 gchar **OUT_so_pin,
+                                 gchar **OUT_user_pin) {
+  *OUT_label = g_strdup(reinterpret_cast<const gchar *>(kDefaultLabel));
+  *OUT_so_pin = g_strdup(reinterpret_cast<const gchar *>(kDefaultSoPin));
+  *OUT_user_pin = g_strdup(reinterpret_cast<const gchar *>(kDefaultUserPin));
+}
+
+}  // namespace cryptohome