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78 lines
2.9 KiB
C
78 lines
2.9 KiB
C
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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef CRYPTO_NSS_UTIL_H_
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#define CRYPTO_NSS_UTIL_H_
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#include <stdint.h>
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#include <string>
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#include "base/callback.h"
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#include "base/compiler_specific.h"
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#include "base/macros.h"
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#include "crypto/crypto_export.h"
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namespace base {
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class Time;
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} // namespace base
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// This file specifically doesn't depend on any NSS or NSPR headers because it
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// is included by various (non-crypto) parts of chrome to call the
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// initialization functions.
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namespace crypto {
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// Initialize NRPR if it isn't already initialized. This function is
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// thread-safe, and NSPR will only ever be initialized once.
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CRYPTO_EXPORT void EnsureNSPRInit();
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// Initialize NSS if it isn't already initialized. This must be called before
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// any other NSS functions. This function is thread-safe, and NSS will only
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// ever be initialized once.
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CRYPTO_EXPORT void EnsureNSSInit();
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// Check if the current NSS version is greater than or equals to |version|.
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// A sample version string is "3.12.3".
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bool CheckNSSVersion(const char* version);
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#if defined(OS_CHROMEOS)
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// Indicates that NSS should use the Chaps library so that we
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// can access the TPM through NSS. InitializeTPMTokenAndSystemSlot and
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// InitializeTPMForChromeOSUser must still be called to load the slots.
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CRYPTO_EXPORT void EnableTPMTokenForNSS();
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// Returns true if EnableTPMTokenForNSS has been called.
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CRYPTO_EXPORT bool IsTPMTokenEnabledForNSS();
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// Returns true if the TPM is owned and PKCS#11 initialized with the
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// user and security officer PINs, and has been enabled in NSS by
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// calling EnableTPMForNSS, and Chaps has been successfully
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// loaded into NSS.
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// If |callback| is non-null and the function returns false, the |callback| will
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// be run once the TPM is ready. |callback| will never be run if the function
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// returns true.
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CRYPTO_EXPORT bool IsTPMTokenReady(const base::Closure& callback)
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WARN_UNUSED_RESULT;
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// Initialize the TPM token and system slot. The |callback| will run on the same
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// thread with true if the token and slot were successfully loaded or were
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// already initialized. |callback| will be passed false if loading failed. Once
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// called, InitializeTPMTokenAndSystemSlot must not be called again until the
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// |callback| has been run.
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CRYPTO_EXPORT void InitializeTPMTokenAndSystemSlot(
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int system_slot_id,
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const base::Callback<void(bool)>& callback);
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#endif
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// Convert a NSS PRTime value into a base::Time object.
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// We use a int64_t instead of PRTime here to avoid depending on NSPR headers.
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CRYPTO_EXPORT base::Time PRTimeToBaseTime(int64_t prtime);
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// Convert a base::Time object into a PRTime value.
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// We use a int64_t instead of PRTime here to avoid depending on NSPR headers.
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CRYPTO_EXPORT int64_t BaseTimeToPRTime(base::Time time);
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} // namespace crypto
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#endif // CRYPTO_NSS_UTIL_H_
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