
Review URL: https://chromiumcodereview.appspot.com/10695140 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@146077 0039d316-1c4b-4281-b951-d872f2087c98
61 lines
2.0 KiB
C++
61 lines
2.0 KiB
C++
// 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_CSSM_INIT_H_
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#define CRYPTO_CSSM_INIT_H_
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#include <Security/cssm.h>
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#include "base/basictypes.h"
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#include "crypto/crypto_export.h"
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namespace crypto {
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// Initialize CSSM if it isn't already initialized. This must be called before
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// any other CSSM functions. This function is thread-safe, and CSSM will only
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// ever be initialized once. CSSM will be properly shut down on program exit.
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CRYPTO_EXPORT void EnsureCSSMInit();
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// Returns the shared CSP handle used by CSSM functions.
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CRYPTO_EXPORT CSSM_CSP_HANDLE GetSharedCSPHandle();
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// Returns the shared CL handle used by CSSM functions.
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CRYPTO_EXPORT CSSM_CL_HANDLE GetSharedCLHandle();
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// Returns the shared TP handle used by CSSM functions.
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CRYPTO_EXPORT CSSM_TP_HANDLE GetSharedTPHandle();
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// Set of pointers to memory function wrappers that are required for CSSM
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extern const CSSM_API_MEMORY_FUNCS kCssmMemoryFunctions;
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// Utility function to log an error message including the error name.
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CRYPTO_EXPORT void LogCSSMError(const char *function_name, CSSM_RETURN err);
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// Utility functions to allocate and release CSSM memory.
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void* CSSMMalloc(CSSM_SIZE size);
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CRYPTO_EXPORT void CSSMFree(void* ptr);
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// Wrapper class for CSSM_DATA type. This should only be used when using the
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// CL/TP/CSP handles from above, since that's the only time we're guaranteed (or
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// supposed to be guaranteed) that our memory management functions will be used.
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// Apple's Sec* APIs manage their own memory so it shouldn't be used for those.
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// The constructor initializes data_ to zero and the destructor releases the
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// data properly.
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class ScopedCSSMData {
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public:
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ScopedCSSMData();
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~ScopedCSSMData();
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operator CSSM_DATA*() { return &data_; }
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CSSM_DATA* operator ->() { return &data_; }
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private:
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CSSM_DATA data_;
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DISALLOW_COPY_AND_ASSIGN(ScopedCSSMData);
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};
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} // namespace crypto
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#endif // CRYPTO_CSSM_INIT_H_
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