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| 1 // Copyright (c) 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef CRYPTO_SCOPED_OPENSSL_TYPES_H_ |
| 6 #define CRYPTO_SCOPED_OPENSSL_TYPES_H_ |
| 7 |
| 8 #include <openssl/bn.h> |
| 9 #include <openssl/dsa.h> |
| 10 #include <openssl/ec.h> |
| 11 #include <openssl/ecdsa.h> |
| 12 #include <openssl/evp.h> |
| 13 #include <openssl/rsa.h> |
| 14 |
| 15 #include "base/memory/scoped_ptr.h" |
| 16 |
| 17 namespace crypto { |
| 18 |
| 19 // Simplistic helper that wraps a call to a deleter function. In a C++11 world, |
| 20 // this would be std::function<>. An alternative would be to re-use |
| 21 // base::internal::RunnableAdapter<>, but that's far too heavy weight. |
| 22 template <typename Type, void (*Destroyer)(Type*)> |
| 23 struct OpenSSLDestroyer { |
| 24 void operator()(Type* ptr) const { Destroyer(ptr); } |
| 25 }; |
| 26 |
| 27 template <typename PointerType, void (*Destroyer)(PointerType*)> |
| 28 struct ScopedOpenSSL { |
| 29 typedef scoped_ptr<PointerType, OpenSSLDestroyer<PointerType, Destroyer> > |
| 30 Type; |
| 31 }; |
| 32 |
| 33 // Several typedefs are provided for crypto-specific primitives, for |
| 34 // short-hand and prevalence. Note that OpenSSL types related to X.509 are |
| 35 // intentionally not included, as crypto/ does not generally deal with |
| 36 // certificates or PKI. |
| 37 typedef ScopedOpenSSL<BIGNUM, BN_free>::Type ScopedBIGNUM; |
| 38 typedef ScopedOpenSSL<EC_KEY, EC_KEY_free>::Type ScopedEC_KEY; |
| 39 typedef ScopedOpenSSL<BIO, BIO_free_all>::Type ScopedBIO; |
| 40 typedef ScopedOpenSSL<DSA, DSA_free>::Type ScopedDSA; |
| 41 typedef ScopedOpenSSL<ECDSA_SIG, ECDSA_SIG_free>::Type ScopedECDSA_SIG; |
| 42 typedef ScopedOpenSSL<EC_KEY, EC_KEY_free>::Type ScopedEC_KEY; |
| 43 typedef ScopedOpenSSL<EVP_MD_CTX, EVP_MD_CTX_destroy>::Type ScopedEVP_MD_CTX; |
| 44 typedef ScopedOpenSSL<EVP_PKEY, EVP_PKEY_free>::Type ScopedEVP_PKEY; |
| 45 typedef ScopedOpenSSL<RSA, RSA_free>::Type ScopedRSA; |
| 46 |
| 47 } // namespace crypto |
| 48 |
| 49 #endif // CRYPTO_SCOPED_OPENSSL_TYPES_H_ |
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