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macros.h10.5 KB · 349 lines
/* * Copyright 2019-2024 The OpenSSL Project Authors. All Rights Reserved. * * Licensed under the Apache License 2.0 (the "License").  You may not use * this file except in compliance with the License.  You can obtain a copy * in the file LICENSE in the source distribution or at * https://www.openssl.org/source/license.html */ #ifndef OPENSSL_MACROS_H#define OPENSSL_MACROS_H#pragma once #include <openssl/opensslconf.h>#include <openssl/opensslv.h> /* Helper macros for CPP string composition */#define OPENSSL_MSTR_HELPER(x) #x#define OPENSSL_MSTR(x) OPENSSL_MSTR_HELPER(x) /* * Sometimes OPENSSL_NO_xxx ends up with an empty file and some compilers * don't like that.  This will hopefully silence them. */#define NON_EMPTY_TRANSLATION_UNIT static void *dummy = &dummy; /* * Generic deprecation macro * * If OPENSSL_SUPPRESS_DEPRECATED is defined, then OSSL_DEPRECATED and * OSSL_DEPRECATED_FOR become no-ops */#ifndef OSSL_DEPRECATED#undef OSSL_DEPRECATED_FOR#ifndef OPENSSL_SUPPRESS_DEPRECATED#if defined(_MSC_VER)/* * MSVC supports __declspec(deprecated) since MSVC 2003 (13.10), * and __declspec(deprecated(message)) since MSVC 2005 (14.00) */#if _MSC_VER >= 1400#define OSSL_DEPRECATED(since) \    __declspec(deprecated("Since OpenSSL " #since))#define OSSL_DEPRECATED_FOR(since, message) \    __declspec(deprecated("Since OpenSSL " #since ";" message))#elif _MSC_VER >= 1310#define OSSL_DEPRECATED(since) __declspec(deprecated)#define OSSL_DEPRECATED_FOR(since, message) __declspec(deprecated)#endif#elif defined(__GNUC__)/* * According to GCC documentation, deprecations with message appeared in * GCC 4.5.0 */#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5)#define OSSL_DEPRECATED(since) \    __attribute__((deprecated("Since OpenSSL " #since)))#define OSSL_DEPRECATED_FOR(since, message) \    __attribute__((deprecated("Since OpenSSL " #since ";" message)))#elif __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 0)#define OSSL_DEPRECATED(since) __attribute__((deprecated))#define OSSL_DEPRECATED_FOR(since, message) __attribute__((deprecated))#endif#elif defined(__SUNPRO_C)#if (__SUNPRO_C >= 0x5130)#define OSSL_DEPRECATED(since) __attribute__((deprecated))#define OSSL_DEPRECATED_FOR(since, message) __attribute__((deprecated))#endif#endif#endif#endif /* * Still not defined?  Then define no-op macros. This means these macros * are unsuitable for use in a typedef. */#ifndef OSSL_DEPRECATED#define OSSL_DEPRECATED(since) extern#define OSSL_DEPRECATED_FOR(since, message) extern#endif /* * Applications should use -DOPENSSL_API_COMPAT=<version> to suppress the * declarations of functions deprecated in or before <version>.  If this is * undefined, the value of the macro OPENSSL_CONFIGURED_API (defined in * <openssl/opensslconf.h>) is the default. * * For any version number up until version 1.1.x, <version> is expected to be * the calculated version number 0xMNNFFPPSL. * For version numbers 3.0 and on, <version> is expected to be a computation * of the major and minor numbers in decimal using this formula: * *     MAJOR * 10000 + MINOR * 100 * * So version 3.0 becomes 30000, version 3.2 becomes 30200, etc. */ /* * We use the OPENSSL_API_COMPAT value to define API level macros.  These * macros are used to enable or disable features at that API version boundary. */ #ifdef OPENSSL_API_LEVEL#error "OPENSSL_API_LEVEL must not be defined by application"#endif /* * We figure out what API level was intended by simple numeric comparison. * The lowest old style number we recognise is 0x00908000L, so we take some * safety margin and assume that anything below 0x00900000L is a new style * number.  This allows new versions up to and including v943.71.83. */#ifdef OPENSSL_API_COMPAT#if OPENSSL_API_COMPAT < 0x900000L#define OPENSSL_API_LEVEL (OPENSSL_API_COMPAT)#else#define OPENSSL_API_LEVEL                           \    (((OPENSSL_API_COMPAT >> 28) & 0xF) * 10000     \        + ((OPENSSL_API_COMPAT >> 20) & 0xFF) * 100 \        + ((OPENSSL_API_COMPAT >> 12) & 0xFF))#endif#endif /* * If OPENSSL_API_COMPAT wasn't given, we use default numbers to set * the API compatibility level. */#ifndef OPENSSL_API_LEVEL#if OPENSSL_CONFIGURED_API > 0#define OPENSSL_API_LEVEL (OPENSSL_CONFIGURED_API)#else#define OPENSSL_API_LEVEL \    (OPENSSL_VERSION_MAJOR * 10000 + OPENSSL_VERSION_MINOR * 100)#endif#endif #if OPENSSL_API_LEVEL > OPENSSL_CONFIGURED_API#error "The requested API level higher than the configured API compatibility level"#endif /* * Check of sane values. *//* Can't go higher than the current version. */#if OPENSSL_API_LEVEL > (OPENSSL_VERSION_MAJOR * 10000 + OPENSSL_VERSION_MINOR * 100)#error "OPENSSL_API_COMPAT expresses an impossible API compatibility level"#endif/* OpenSSL will have no version 2.y.z */#if OPENSSL_API_LEVEL < 30000 && OPENSSL_API_LEVEL >= 20000#error "OPENSSL_API_COMPAT expresses an impossible API compatibility level"#endif/* Below 0.9.8 is unacceptably low */#if OPENSSL_API_LEVEL < 908#error "OPENSSL_API_COMPAT expresses an impossible API compatibility level"#endif /* * Define macros for deprecation and simulated removal purposes. * * The macros OSSL_DEPRECATEDIN_{major}_{minor} are always defined for * all OpenSSL versions we care for.  They can be used as attributes * in function declarations where appropriate. * * The macros OPENSSL_NO_DEPRECATED_{major}_{minor} are defined for * all OpenSSL versions up to or equal to the version given with * OPENSSL_API_COMPAT.  They are used as guards around anything that's * deprecated up to that version, as an effect of the developer option * 'no-deprecated'. */ #undef OPENSSL_NO_DEPRECATED_3_4#undef OPENSSL_NO_DEPRECATED_3_1#undef OPENSSL_NO_DEPRECATED_3_0#undef OPENSSL_NO_DEPRECATED_1_1_1#undef OPENSSL_NO_DEPRECATED_1_1_0#undef OPENSSL_NO_DEPRECATED_1_0_2#undef OPENSSL_NO_DEPRECATED_1_0_1#undef OPENSSL_NO_DEPRECATED_1_0_0#undef OPENSSL_NO_DEPRECATED_0_9_8 #if OPENSSL_API_LEVEL >= 30500#ifndef OPENSSL_NO_DEPRECATED#define OSSL_DEPRECATEDIN_3_5 OSSL_DEPRECATED(3.5)#define OSSL_DEPRECATEDIN_3_5_FOR(msg) OSSL_DEPRECATED_FOR(3.5, msg)#else#define OPENSSL_NO_DEPRECATED_3_5#endif#else#define OSSL_DEPRECATEDIN_3_5#define OSSL_DEPRECATEDIN_3_5_FOR(msg)#endif#if OPENSSL_API_LEVEL >= 30400#ifndef OPENSSL_NO_DEPRECATED#define OSSL_DEPRECATEDIN_3_4 OSSL_DEPRECATED(3.4)#define OSSL_DEPRECATEDIN_3_4_FOR(msg) OSSL_DEPRECATED_FOR(3.4, msg)#else#define OPENSSL_NO_DEPRECATED_3_4#endif#else#define OSSL_DEPRECATEDIN_3_4#define OSSL_DEPRECATEDIN_3_4_FOR(msg)#endif#if OPENSSL_API_LEVEL >= 30100#ifndef OPENSSL_NO_DEPRECATED#define OSSL_DEPRECATEDIN_3_1 OSSL_DEPRECATED(3.1)#define OSSL_DEPRECATEDIN_3_1_FOR(msg) OSSL_DEPRECATED_FOR(3.1, msg)#else#define OPENSSL_NO_DEPRECATED_3_1#endif#else#define OSSL_DEPRECATEDIN_3_1#define OSSL_DEPRECATEDIN_3_1_FOR(msg)#endif#if OPENSSL_API_LEVEL >= 30000#ifndef OPENSSL_NO_DEPRECATED#define OSSL_DEPRECATEDIN_3_0 OSSL_DEPRECATED(3.0)#define OSSL_DEPRECATEDIN_3_0_FOR(msg) OSSL_DEPRECATED_FOR(3.0, msg)#else#define OPENSSL_NO_DEPRECATED_3_0#endif#else#define OSSL_DEPRECATEDIN_3_0#define OSSL_DEPRECATEDIN_3_0_FOR(msg)#endif#if OPENSSL_API_LEVEL >= 10101#ifndef OPENSSL_NO_DEPRECATED#define OSSL_DEPRECATEDIN_1_1_1 OSSL_DEPRECATED(1.1.1)#define OSSL_DEPRECATEDIN_1_1_1_FOR(msg) OSSL_DEPRECATED_FOR(1.1.1, msg)#else#define OPENSSL_NO_DEPRECATED_1_1_1#endif#else#define OSSL_DEPRECATEDIN_1_1_1#define OSSL_DEPRECATEDIN_1_1_1_FOR(msg)#endif#if OPENSSL_API_LEVEL >= 10100#ifndef OPENSSL_NO_DEPRECATED#define OSSL_DEPRECATEDIN_1_1_0 OSSL_DEPRECATED(1.1.0)#define OSSL_DEPRECATEDIN_1_1_0_FOR(msg) OSSL_DEPRECATED_FOR(1.1.0, msg)#else#define OPENSSL_NO_DEPRECATED_1_1_0#endif#else#define OSSL_DEPRECATEDIN_1_1_0#define OSSL_DEPRECATEDIN_1_1_0_FOR(msg)#endif#if OPENSSL_API_LEVEL >= 10002#ifndef OPENSSL_NO_DEPRECATED#define OSSL_DEPRECATEDIN_1_0_2 OSSL_DEPRECATED(1.0.2)#define OSSL_DEPRECATEDIN_1_0_2_FOR(msg) OSSL_DEPRECATED_FOR(1.0.2, msg)#else#define OPENSSL_NO_DEPRECATED_1_0_2#endif#else#define OSSL_DEPRECATEDIN_1_0_2#define OSSL_DEPRECATEDIN_1_0_2_FOR(msg)#endif#if OPENSSL_API_LEVEL >= 10001#ifndef OPENSSL_NO_DEPRECATED#define OSSL_DEPRECATEDIN_1_0_1 OSSL_DEPRECATED(1.0.1)#define OSSL_DEPRECATEDIN_1_0_1_FOR(msg) OSSL_DEPRECATED_FOR(1.0.1, msg)#else#define OPENSSL_NO_DEPRECATED_1_0_1#endif#else#define OSSL_DEPRECATEDIN_1_0_1#define OSSL_DEPRECATEDIN_1_0_1_FOR(msg)#endif#if OPENSSL_API_LEVEL >= 10000#ifndef OPENSSL_NO_DEPRECATED#define OSSL_DEPRECATEDIN_1_0_0 OSSL_DEPRECATED(1.0.0)#define OSSL_DEPRECATEDIN_1_0_0_FOR(msg) OSSL_DEPRECATED_FOR(1.0.0, msg)#else#define OPENSSL_NO_DEPRECATED_1_0_0#endif#else#define OSSL_DEPRECATEDIN_1_0_0#define OSSL_DEPRECATEDIN_1_0_0_FOR(msg)#endif#if OPENSSL_API_LEVEL >= 908#ifndef OPENSSL_NO_DEPRECATED#define OSSL_DEPRECATEDIN_0_9_8 OSSL_DEPRECATED(0.9.8)#define OSSL_DEPRECATEDIN_0_9_8_FOR(msg) OSSL_DEPRECATED_FOR(0.9.8, msg)#else#define OPENSSL_NO_DEPRECATED_0_9_8#endif#else#define OSSL_DEPRECATEDIN_0_9_8#define OSSL_DEPRECATEDIN_0_9_8_FOR(msg)#endif /* * Make our own variants of __FILE__ and __LINE__, depending on configuration */ #ifndef OPENSSL_FILE#ifdef OPENSSL_NO_FILENAMES#define OPENSSL_FILE ""#define OPENSSL_LINE 0#else#define OPENSSL_FILE __FILE__#define OPENSSL_LINE __LINE__#endif#endif /* * __func__ was standardized in C99, so for any compiler that claims * to implement that language level or newer, we assume we can safely * use that symbol. * * GNU C also provides __FUNCTION__ since version 2, which predates * C99.  We can, however, only use this if __STDC_VERSION__ exists, * as it's otherwise not allowed according to ISO C standards (C90). * (compiling with GNU C's -pedantic tells us so) * * If none of the above applies, we check if the compiler is MSVC, * and use __FUNCTION__ if that's the case. */#ifndef OPENSSL_FUNC#if defined(__STDC_VERSION__)#if __STDC_VERSION__ >= 199901L#define OPENSSL_FUNC __func__#elif defined(__GNUC__) && __GNUC__ >= 2#define OPENSSL_FUNC __FUNCTION__#endif#elif defined(_MSC_VER)#define OPENSSL_FUNC __FUNCTION__#endif/* * If all these possibilities are exhausted, we give up and use a * static string. */#ifndef OPENSSL_FUNC#define OPENSSL_FUNC "(unknown function)"#endif#endif #ifndef OSSL_CRYPTO_ALLOC#if defined(__GNUC__)#define OSSL_CRYPTO_ALLOC __attribute__((__malloc__))#elif defined(_MSC_VER)#define OSSL_CRYPTO_ALLOC __declspec(restrict)#else#define OSSL_CRYPTO_ALLOC#endif#endif #endif /* OPENSSL_MACROS_H */