1 /* ==================================================================== 2 * Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in 13 * the documentation and/or other materials provided with the 14 * distribution. 15 * 16 * 3. All advertising materials mentioning features or use of this 17 * software must display the following acknowledgment: 18 * "This product includes software developed by the OpenSSL Project 19 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 20 * 21 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 22 * endorse or promote products derived from this software without 23 * prior written permission. For written permission, please contact 24 * openssl-core@openssl.org. 25 * 26 * 5. Products derived from this software may not be called "OpenSSL" 27 * nor may "OpenSSL" appear in their names without prior written 28 * permission of the OpenSSL Project. 29 * 30 * 6. Redistributions of any form whatsoever must retain the following 31 * acknowledgment: 32 * "This product includes software developed by the OpenSSL Project 33 * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 34 * 35 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 36 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 37 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 38 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 41 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 42 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 43 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 44 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 45 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 46 * OF THE POSSIBILITY OF SUCH DAMAGE. 47 * ==================================================================== 48 * 49 * This product includes cryptographic software written by Eric Young 50 * (eay@cryptsoft.com). This product includes software written by Tim 51 * Hudson (tjh@cryptsoft.com). */ 52 53 #ifndef OPENSSL_HEADER_BASE_H 54 #define OPENSSL_HEADER_BASE_H 55 56 57 // This file should be the first included by all BoringSSL headers. 58 59 #include <stddef.h> 60 #include <stdint.h> 61 #include <sys/types.h> 62 63 #if defined(__MINGW32__) 64 // stdio.h is needed on MinGW for __MINGW_PRINTF_FORMAT. 65 #include <stdio.h> 66 #endif 67 68 #if defined(__APPLE__) 69 #include <TargetConditionals.h> 70 #endif 71 72 // Include a BoringSSL-only header so consumers including this header without 73 // setting up include paths do not accidentally pick up the system 74 // opensslconf.h. 75 #include <openssl/is_boringssl.h> 76 #include <openssl/opensslconf.h> 77 78 #if defined(BORINGSSL_PREFIX) 79 #include <boringssl_prefix_symbols.h> 80 #endif 81 82 #if defined(__cplusplus) 83 extern "C" { 84 #endif 85 86 87 #if defined(__x86_64) || defined(_M_AMD64) || defined(_M_X64) 88 #define OPENSSL_64_BIT 89 #define OPENSSL_X86_64 90 #elif defined(__x86) || defined(__i386) || defined(__i386__) || defined(_M_IX86) 91 #define OPENSSL_32_BIT 92 #define OPENSSL_X86 93 #elif defined(__aarch64__) 94 #define OPENSSL_64_BIT 95 #define OPENSSL_AARCH64 96 #elif defined(__arm) || defined(__arm__) || defined(_M_ARM) 97 #define OPENSSL_32_BIT 98 #define OPENSSL_ARM 99 #elif (defined(__PPC64__) || defined(__powerpc64__)) && defined(__LITTLE_ENDIAN__) 100 #define OPENSSL_64_BIT 101 #define OPENSSL_PPC64LE 102 #elif (defined(__PPC64__) || defined(__powerpc64__)) 103 #define OPENSSL_64_BIT 104 #define OPENSSL_PPC64 105 #define OPENSSL_BIGENDIAN 106 #elif defined(__mips__) && !defined(__LP64__) 107 #define OPENSSL_32_BIT 108 #define OPENSSL_MIPS 109 #elif defined(__mips__) && defined(__LP64__) 110 #define OPENSSL_64_BIT 111 #define OPENSSL_MIPS64 112 #elif defined(__pnacl__) 113 #define OPENSSL_32_BIT 114 #define OPENSSL_PNACL 115 #elif defined(__wasm__) 116 #define OPENSSL_32_BIT 117 #elif defined(__asmjs__) 118 #define OPENSSL_32_BIT 119 #elif defined(__myriad2__) 120 #define OPENSSL_32_BIT 121 #else 122 // Note BoringSSL only supports standard 32-bit and 64-bit two's-complement, 123 // little-endian architectures. Functions will not produce the correct answer 124 // on other systems. Run the crypto_test binary, notably 125 // crypto/compiler_test.cc, before adding a new architecture. 126 #error "Unknown target CPU" 127 #endif 128 129 #if defined(__APPLE__) 130 #define OPENSSL_APPLE 131 // Note |TARGET_OS_MAC| is set for all Apple OS variants. |TARGET_OS_OSX| 132 // targets macOS specifically. 133 #if defined(TARGET_OS_OSX) && TARGET_OS_OSX 134 #define OPENSSL_MACOS 135 #endif 136 #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE 137 #define OPENSSL_IOS 138 #endif 139 #endif 140 141 #if defined(_WIN32) 142 #define OPENSSL_WINDOWS 143 #endif 144 145 #if defined(__linux__) 146 #define OPENSSL_LINUX 147 #endif 148 149 #if defined(__Fuchsia__) 150 #define OPENSSL_FUCHSIA 151 #endif 152 153 #if defined(TRUSTY) 154 #define OPENSSL_TRUSTY 155 #define OPENSSL_NO_THREADS_CORRUPT_MEMORY_AND_LEAK_SECRETS_IF_THREADED 156 #endif 157 158 #if defined(__ANDROID_API__) 159 #define OPENSSL_ANDROID 160 #endif 161 162 // BoringSSL requires platform's locking APIs to make internal global state 163 // thread-safe, including the PRNG. On some single-threaded embedded platforms, 164 // locking APIs may not exist, so this dependency may be disabled with the 165 // following build flag. 166 // 167 // IMPORTANT: Doing so means the consumer promises the library will never be 168 // used in any multi-threaded context. It causes BoringSSL to be globally 169 // thread-unsafe. Setting it inappropriately will subtly and unpredictably 170 // corrupt memory and leak secret keys. 171 // 172 // Do not set this flag on any platform where threads are possible. BoringSSL 173 // maintainers will not provide support for any consumers that do so. Changes 174 // which break such unsupported configurations will not be reverted. 175 #if !defined(OPENSSL_NO_THREADS_CORRUPT_MEMORY_AND_LEAK_SECRETS_IF_THREADED) 176 #define OPENSSL_THREADS 177 #endif 178 179 #define OPENSSL_IS_BORINGSSL 180 #define OPENSSL_VERSION_NUMBER 0x1010007f 181 #define SSLEAY_VERSION_NUMBER OPENSSL_VERSION_NUMBER 182 183 // BORINGSSL_API_VERSION is a positive integer that increments as BoringSSL 184 // changes over time. The value itself is not meaningful. It will be incremented 185 // whenever is convenient to coordinate an API change with consumers. This will 186 // not denote any special point in development. 187 // 188 // A consumer may use this symbol in the preprocessor to temporarily build 189 // against multiple revisions of BoringSSL at the same time. It is not 190 // recommended to do so for longer than is necessary. 191 #define BORINGSSL_API_VERSION 10 192 193 #if defined(BORINGSSL_SHARED_LIBRARY) 194 195 #if defined(OPENSSL_WINDOWS) 196 197 #if defined(BORINGSSL_IMPLEMENTATION) 198 #define OPENSSL_EXPORT __declspec(dllexport) 199 #else 200 #define OPENSSL_EXPORT __declspec(dllimport) 201 #endif 202 203 #else // defined(OPENSSL_WINDOWS) 204 205 #if defined(BORINGSSL_IMPLEMENTATION) 206 #define OPENSSL_EXPORT __attribute__((visibility("default"))) 207 #else 208 #define OPENSSL_EXPORT 209 #endif 210 211 #endif // defined(OPENSSL_WINDOWS) 212 213 #else // defined(BORINGSSL_SHARED_LIBRARY) 214 215 #define OPENSSL_EXPORT 216 217 #endif // defined(BORINGSSL_SHARED_LIBRARY) 218 219 220 #if defined(__GNUC__) || defined(__clang__) 221 // MinGW has two different printf implementations. Ensure the format macro 222 // matches the selected implementation. See 223 // https://sourceforge.net/p/mingw-w64/wiki2/gnu%20printf/. 224 #if defined(__MINGW_PRINTF_FORMAT) 225 #define OPENSSL_PRINTF_FORMAT_FUNC(string_index, first_to_check) \ 226 __attribute__( \ 227 (__format__(__MINGW_PRINTF_FORMAT, string_index, first_to_check))) 228 #else 229 #define OPENSSL_PRINTF_FORMAT_FUNC(string_index, first_to_check) \ 230 __attribute__((__format__(__printf__, string_index, first_to_check))) 231 #endif 232 #else 233 #define OPENSSL_PRINTF_FORMAT_FUNC(string_index, first_to_check) 234 #endif 235 236 // OPENSSL_MSVC_PRAGMA emits a pragma on MSVC and nothing on other compilers. 237 #if defined(_MSC_VER) 238 #define OPENSSL_MSVC_PRAGMA(arg) __pragma(arg) 239 #else 240 #define OPENSSL_MSVC_PRAGMA(arg) 241 #endif 242 243 #if defined(__GNUC__) || defined(__clang__) 244 #define OPENSSL_UNUSED __attribute__((unused)) 245 #else 246 #define OPENSSL_UNUSED 247 #endif 248 249 // C and C++ handle inline functions differently. In C++, an inline function is 250 // defined in just the header file, potentially emitted in multiple compilation 251 // units (in cases the compiler did not inline), but each copy must be identical 252 // to satsify ODR. In C, a non-static inline must be manually emitted in exactly 253 // one compilation unit with a separate extern inline declaration. 254 // 255 // In both languages, exported inline functions referencing file-local symbols 256 // are problematic. C forbids this altogether (though GCC and Clang seem not to 257 // enforce it). It works in C++, but ODR requires the definitions be identical, 258 // including all names in the definitions resolving to the "same entity". In 259 // practice, this is unlikely to be a problem, but an inline function that 260 // returns a pointer to a file-local symbol 261 // could compile oddly. 262 // 263 // Historically, we used static inline in headers. However, to satisfy ODR, use 264 // plain inline in C++, to allow inline consumer functions to call our header 265 // functions. Plain inline would also work better with C99 inline, but that is 266 // not used much in practice, extern inline is tedious, and there are conflicts 267 // with the old gnu89 model: 268 // https://stackoverflow.com/questions/216510/extern-inline 269 #if defined(__cplusplus) 270 #define OPENSSL_INLINE inline 271 #else 272 // Add OPENSSL_UNUSED so that, should an inline function be emitted via macro 273 // (e.g. a |STACK_OF(T)| implementation) in a source file without tripping 274 // clang's -Wunused-function. 275 #define OPENSSL_INLINE static inline OPENSSL_UNUSED 276 #endif 277 278 #if defined(BORINGSSL_UNSAFE_FUZZER_MODE) && \ 279 !defined(BORINGSSL_UNSAFE_DETERMINISTIC_MODE) 280 #define BORINGSSL_UNSAFE_DETERMINISTIC_MODE 281 #endif 282 283 #if defined(__has_feature) 284 #if __has_feature(address_sanitizer) 285 #define OPENSSL_ASAN 286 #endif 287 #if __has_feature(thread_sanitizer) 288 #define OPENSSL_TSAN 289 #endif 290 #if __has_feature(memory_sanitizer) 291 #define OPENSSL_MSAN 292 #define OPENSSL_ASM_INCOMPATIBLE 293 #endif 294 #endif 295 296 #if defined(OPENSSL_ASM_INCOMPATIBLE) 297 #undef OPENSSL_ASM_INCOMPATIBLE 298 #if !defined(OPENSSL_NO_ASM) 299 #define OPENSSL_NO_ASM 300 #endif 301 #endif // OPENSSL_ASM_INCOMPATIBLE 302 303 #if defined(__cplusplus) 304 // enums can be predeclared, but only in C++ and only if given an explicit type. 305 // C doesn't support setting an explicit type for enums thus a #define is used 306 // to do this only for C++. However, the ABI type between C and C++ need to have 307 // equal sizes, which is confirmed in a unittest. 308 #define BORINGSSL_ENUM_INT : int 309 enum ssl_early_data_reason_t BORINGSSL_ENUM_INT; 310 enum ssl_encryption_level_t BORINGSSL_ENUM_INT; 311 enum ssl_private_key_result_t BORINGSSL_ENUM_INT; 312 enum ssl_renegotiate_mode_t BORINGSSL_ENUM_INT; 313 enum ssl_select_cert_result_t BORINGSSL_ENUM_INT; 314 enum ssl_select_cert_result_t BORINGSSL_ENUM_INT; 315 enum ssl_ticket_aead_result_t BORINGSSL_ENUM_INT; 316 enum ssl_verify_result_t BORINGSSL_ENUM_INT; 317 #else 318 #define BORINGSSL_ENUM_INT 319 #endif 320 321 // CRYPTO_THREADID is a dummy value. 322 typedef int CRYPTO_THREADID; 323 324 typedef int ASN1_BOOLEAN; 325 typedef int ASN1_NULL; 326 typedef struct ASN1_ITEM_st ASN1_ITEM; 327 typedef struct asn1_object_st ASN1_OBJECT; 328 typedef struct asn1_pctx_st ASN1_PCTX; 329 typedef struct asn1_string_st ASN1_BIT_STRING; 330 typedef struct asn1_string_st ASN1_BMPSTRING; 331 typedef struct asn1_string_st ASN1_ENUMERATED; 332 typedef struct asn1_string_st ASN1_GENERALIZEDTIME; 333 typedef struct asn1_string_st ASN1_GENERALSTRING; 334 typedef struct asn1_string_st ASN1_IA5STRING; 335 typedef struct asn1_string_st ASN1_INTEGER; 336 typedef struct asn1_string_st ASN1_OCTET_STRING; 337 typedef struct asn1_string_st ASN1_PRINTABLESTRING; 338 typedef struct asn1_string_st ASN1_STRING; 339 typedef struct asn1_string_st ASN1_T61STRING; 340 typedef struct asn1_string_st ASN1_TIME; 341 typedef struct asn1_string_st ASN1_UNIVERSALSTRING; 342 typedef struct asn1_string_st ASN1_UTCTIME; 343 typedef struct asn1_string_st ASN1_UTF8STRING; 344 typedef struct asn1_string_st ASN1_VISIBLESTRING; 345 typedef struct asn1_type_st ASN1_TYPE; 346 typedef struct AUTHORITY_KEYID_st AUTHORITY_KEYID; 347 typedef struct BASIC_CONSTRAINTS_st BASIC_CONSTRAINTS; 348 typedef struct DIST_POINT_st DIST_POINT; 349 typedef struct DSA_SIG_st DSA_SIG; 350 typedef struct ISSUING_DIST_POINT_st ISSUING_DIST_POINT; 351 typedef struct NAME_CONSTRAINTS_st NAME_CONSTRAINTS; 352 typedef struct Netscape_spkac_st NETSCAPE_SPKAC; 353 typedef struct Netscape_spki_st NETSCAPE_SPKI; 354 typedef struct RIPEMD160state_st RIPEMD160_CTX; 355 typedef struct X509_POLICY_CACHE_st X509_POLICY_CACHE; 356 typedef struct X509_POLICY_LEVEL_st X509_POLICY_LEVEL; 357 typedef struct X509_POLICY_NODE_st X509_POLICY_NODE; 358 typedef struct X509_POLICY_TREE_st X509_POLICY_TREE; 359 typedef struct X509_VERIFY_PARAM_st X509_VERIFY_PARAM; 360 typedef struct X509_algor_st X509_ALGOR; 361 typedef struct X509_crl_info_st X509_CRL_INFO; 362 typedef struct X509_crl_st X509_CRL; 363 typedef struct X509_extension_st X509_EXTENSION; 364 typedef struct X509_info_st X509_INFO; 365 typedef struct X509_name_entry_st X509_NAME_ENTRY; 366 typedef struct X509_name_st X509_NAME; 367 typedef struct X509_pubkey_st X509_PUBKEY; 368 typedef struct X509_req_info_st X509_REQ_INFO; 369 typedef struct X509_req_st X509_REQ; 370 typedef struct X509_sig_st X509_SIG; 371 typedef struct X509_val_st X509_VAL; 372 typedef struct bignum_ctx BN_CTX; 373 typedef struct bignum_st BIGNUM; 374 typedef struct bio_method_st BIO_METHOD; 375 typedef struct bio_st BIO; 376 typedef struct bn_gencb_st BN_GENCB; 377 typedef struct bn_mont_ctx_st BN_MONT_CTX; 378 typedef struct buf_mem_st BUF_MEM; 379 typedef struct cbb_st CBB; 380 typedef struct cbs_st CBS; 381 typedef struct cmac_ctx_st CMAC_CTX; 382 typedef struct conf_st CONF; 383 typedef struct conf_value_st CONF_VALUE; 384 typedef struct crypto_buffer_pool_st CRYPTO_BUFFER_POOL; 385 typedef struct crypto_buffer_st CRYPTO_BUFFER; 386 typedef struct dh_st DH; 387 typedef struct dsa_st DSA; 388 typedef struct ec_group_st EC_GROUP; 389 typedef struct ec_key_st EC_KEY; 390 typedef struct ec_point_st EC_POINT; 391 typedef struct ecdsa_method_st ECDSA_METHOD; 392 typedef struct ecdsa_sig_st ECDSA_SIG; 393 typedef struct engine_st ENGINE; 394 typedef struct env_md_ctx_st EVP_MD_CTX; 395 typedef struct env_md_st EVP_MD; 396 typedef struct evp_aead_st EVP_AEAD; 397 typedef struct evp_cipher_ctx_st EVP_CIPHER_CTX; 398 typedef struct evp_cipher_st EVP_CIPHER; 399 typedef struct evp_encode_ctx_st EVP_ENCODE_CTX; 400 typedef struct evp_pkey_asn1_method_st EVP_PKEY_ASN1_METHOD; 401 typedef struct evp_pkey_ctx_st EVP_PKEY_CTX; 402 typedef struct evp_pkey_method_st EVP_PKEY_METHOD; 403 typedef struct evp_pkey_st EVP_PKEY; 404 typedef struct hmac_ctx_st HMAC_CTX; 405 typedef struct md4_state_st MD4_CTX; 406 typedef struct md5_state_st MD5_CTX; 407 typedef struct ossl_init_settings_st OPENSSL_INIT_SETTINGS; 408 typedef struct pkcs12_st PKCS12; 409 typedef struct pkcs8_priv_key_info_st PKCS8_PRIV_KEY_INFO; 410 typedef struct private_key_st X509_PKEY; 411 typedef struct rand_meth_st RAND_METHOD; 412 typedef struct rc4_key_st RC4_KEY; 413 typedef struct rsa_meth_st RSA_METHOD; 414 typedef struct rsa_st RSA; 415 typedef struct sha256_state_st SHA256_CTX; 416 typedef struct sha512_state_st SHA512_CTX; 417 typedef struct sha_state_st SHA_CTX; 418 typedef struct spake2_ctx_st SPAKE2_CTX; 419 typedef struct srtp_protection_profile_st SRTP_PROTECTION_PROFILE; 420 typedef struct ssl_cipher_st SSL_CIPHER; 421 typedef struct ssl_ctx_st SSL_CTX; 422 typedef struct ssl_method_st SSL_METHOD; 423 typedef struct ssl_private_key_method_st SSL_PRIVATE_KEY_METHOD; 424 typedef struct ssl_quic_method_st SSL_QUIC_METHOD; 425 typedef struct ssl_session_st SSL_SESSION; 426 typedef struct ssl_st SSL; 427 typedef struct ssl_ticket_aead_method_st SSL_TICKET_AEAD_METHOD; 428 typedef struct st_ERR_FNS ERR_FNS; 429 typedef struct v3_ext_ctx X509V3_CTX; 430 typedef struct x509_attributes_st X509_ATTRIBUTE; 431 typedef struct x509_cert_aux_st X509_CERT_AUX; 432 typedef struct x509_cinf_st X509_CINF; 433 typedef struct x509_crl_method_st X509_CRL_METHOD; 434 typedef struct x509_lookup_st X509_LOOKUP; 435 typedef struct x509_revoked_st X509_REVOKED; 436 typedef struct x509_st X509; 437 typedef struct x509_store_ctx_st X509_STORE_CTX; 438 typedef struct x509_store_st X509_STORE; 439 typedef struct x509_trust_st X509_TRUST; 440 441 typedef void *OPENSSL_BLOCK; 442 443 444 #if defined(__cplusplus) 445 } // extern C 446 #elif !defined(BORINGSSL_NO_CXX) 447 #define BORINGSSL_NO_CXX 448 #endif 449 450 #if defined(BORINGSSL_PREFIX) 451 #define BSSL_NAMESPACE_BEGIN \ 452 namespace bssl { \ 453 inline namespace BORINGSSL_PREFIX { 454 #define BSSL_NAMESPACE_END \ 455 } \ 456 } 457 #else 458 #define BSSL_NAMESPACE_BEGIN namespace bssl { 459 #define BSSL_NAMESPACE_END } 460 #endif 461 462 // MSVC doesn't set __cplusplus to 201103 to indicate C++11 support (see 463 // https://connect.microsoft.com/VisualStudio/feedback/details/763051/a-value-of-predefined-macro-cplusplus-is-still-199711l) 464 // so MSVC is just assumed to support C++11. 465 #if !defined(BORINGSSL_NO_CXX) && __cplusplus < 201103L && !defined(_MSC_VER) 466 #define BORINGSSL_NO_CXX 467 #endif 468 469 #if !defined(BORINGSSL_NO_CXX) 470 471 extern "C++" { 472 473 #include <memory> 474 475 // STLPort, used by some Android consumers, not have std::unique_ptr. 476 #if defined(_STLPORT_VERSION) 477 #define BORINGSSL_NO_CXX 478 #endif 479 480 } // extern C++ 481 #endif // !BORINGSSL_NO_CXX 482 483 #if defined(BORINGSSL_NO_CXX) 484 485 #define BORINGSSL_MAKE_DELETER(type, deleter) 486 #define BORINGSSL_MAKE_UP_REF(type, up_ref_func) 487 488 #else 489 490 extern "C++" { 491 492 BSSL_NAMESPACE_BEGIN 493 494 namespace internal { 495 496 // The Enable parameter is ignored and only exists so specializations can use 497 // SFINAE. 498 template <typename T, typename Enable = void> 499 struct DeleterImpl {}; 500 501 template <typename T> 502 struct Deleter { operatorDeleter503 void operator()(T *ptr) { 504 // Rather than specialize Deleter for each type, we specialize 505 // DeleterImpl. This allows bssl::UniquePtr<T> to be used while only 506 // including base.h as long as the destructor is not emitted. This matches 507 // std::unique_ptr's behavior on forward-declared types. 508 // 509 // DeleterImpl itself is specialized in the corresponding module's header 510 // and must be included to release an object. If not included, the compiler 511 // will error that DeleterImpl<T> does not have a method Free. 512 DeleterImpl<T>::Free(ptr); 513 } 514 }; 515 516 template <typename T, typename CleanupRet, void (*init)(T *), 517 CleanupRet (*cleanup)(T *)> 518 class StackAllocated { 519 public: StackAllocated()520 StackAllocated() { init(&ctx_); } ~StackAllocated()521 ~StackAllocated() { cleanup(&ctx_); } 522 523 StackAllocated(const StackAllocated<T, CleanupRet, init, cleanup> &) = delete; 524 T& operator=(const StackAllocated<T, CleanupRet, init, cleanup> &) = delete; 525 get()526 T *get() { return &ctx_; } get()527 const T *get() const { return &ctx_; } 528 529 T *operator->() { return &ctx_; } 530 const T *operator->() const { return &ctx_; } 531 Reset()532 void Reset() { 533 cleanup(&ctx_); 534 init(&ctx_); 535 } 536 537 private: 538 T ctx_; 539 }; 540 541 } // namespace internal 542 543 #define BORINGSSL_MAKE_DELETER(type, deleter) \ 544 namespace internal { \ 545 template <> \ 546 struct DeleterImpl<type> { \ 547 static void Free(type *ptr) { deleter(ptr); } \ 548 }; \ 549 } 550 551 // Holds ownership of heap-allocated BoringSSL structures. Sample usage: 552 // bssl::UniquePtr<RSA> rsa(RSA_new()); 553 // bssl::UniquePtr<BIO> bio(BIO_new(BIO_s_mem())); 554 template <typename T> 555 using UniquePtr = std::unique_ptr<T, internal::Deleter<T>>; 556 557 #define BORINGSSL_MAKE_UP_REF(type, up_ref_func) \ 558 inline UniquePtr<type> UpRef(type *v) { \ 559 if (v != nullptr) { \ 560 up_ref_func(v); \ 561 } \ 562 return UniquePtr<type>(v); \ 563 } \ 564 \ 565 inline UniquePtr<type> UpRef(const UniquePtr<type> &ptr) { \ 566 return UpRef(ptr.get()); \ 567 } 568 569 BSSL_NAMESPACE_END 570 571 } // extern C++ 572 573 #endif // !BORINGSSL_NO_CXX 574 575 #endif // OPENSSL_HEADER_BASE_H 576