| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CRYPTO_SCOPED_OPENSSL_TYPES_H_ |
| #define CRYPTO_SCOPED_OPENSSL_TYPES_H_ |
| |
| #include <openssl/bio.h> |
| #include <openssl/bn.h> |
| #include <openssl/dsa.h> |
| #include <openssl/ec.h> |
| #include <openssl/ecdsa.h> |
| #include <openssl/evp.h> |
| #include <openssl/rsa.h> |
| |
| #include "base/memory/scoped_ptr.h" |
| |
| namespace crypto { |
| |
| // Simplistic helper that wraps a call to a deleter function. In a C++11 world, |
| // this would be std::function<>. An alternative would be to re-use |
| // base::internal::RunnableAdapter<>, but that's far too heavy weight. |
| template <typename Type, void (*Destroyer)(Type*)> |
| struct OpenSSLDestroyer { |
| typedef void AllowSelfReset; |
| void operator()(Type* ptr) const { Destroyer(ptr); } |
| }; |
| |
| template <typename PointerType, void (*Destroyer)(PointerType*)> |
| struct ScopedOpenSSL { |
| typedef scoped_ptr<PointerType, OpenSSLDestroyer<PointerType, Destroyer> > |
| Type; |
| }; |
| |
| struct OpenSSLFree { |
| void operator()(uint8_t* ptr) const { OPENSSL_free(ptr); } |
| }; |
| |
| // Several typedefs are provided for crypto-specific primitives, for |
| // short-hand and prevalence. Note that OpenSSL types related to X.509 are |
| // intentionally not included, as crypto/ does not generally deal with |
| // certificates or PKI. |
| typedef ScopedOpenSSL<BIGNUM, BN_free>::Type ScopedBIGNUM; |
| typedef ScopedOpenSSL<EC_KEY, EC_KEY_free>::Type ScopedEC_KEY; |
| typedef ScopedOpenSSL<BIO, BIO_free_all>::Type ScopedBIO; |
| typedef ScopedOpenSSL<DSA, DSA_free>::Type ScopedDSA; |
| typedef ScopedOpenSSL<ECDSA_SIG, ECDSA_SIG_free>::Type ScopedECDSA_SIG; |
| typedef ScopedOpenSSL<EC_KEY, EC_KEY_free>::Type ScopedEC_KEY; |
| typedef ScopedOpenSSL<EVP_MD_CTX, EVP_MD_CTX_destroy>::Type ScopedEVP_MD_CTX; |
| typedef ScopedOpenSSL<EVP_PKEY, EVP_PKEY_free>::Type ScopedEVP_PKEY; |
| typedef ScopedOpenSSL<EVP_PKEY_CTX, EVP_PKEY_CTX_free>::Type ScopedEVP_PKEY_CTX; |
| typedef ScopedOpenSSL<RSA, RSA_free>::Type ScopedRSA; |
| |
| // The bytes must have been allocated with OPENSSL_malloc. |
| typedef scoped_ptr<uint8_t, OpenSSLFree> ScopedOpenSSLBytes; |
| |
| } // namespace crypto |
| |
| #endif // CRYPTO_SCOPED_OPENSSL_TYPES_H_ |