567 lines
20 KiB
C++
567 lines
20 KiB
C++
/* ====================================================================
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* Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* openssl-core@openssl.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com). */
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#ifndef OPENSSL_HEADER_BASE_H
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#define OPENSSL_HEADER_BASE_H
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// This file should be the first included by all BoringSSL headers.
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#include <stddef.h>
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#include <stdint.h>
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#include <sys/types.h>
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#if defined(__MINGW32__)
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// stdio.h is needed on MinGW for __MINGW_PRINTF_FORMAT.
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#include <stdio.h>
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#endif
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#if defined(__APPLE__)
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#include <TargetConditionals.h>
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#endif
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// Include a BoringSSL-only header so consumers including this header without
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// setting up include paths do not accidentally pick up the system
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// opensslconf.h.
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#include <openssl/is_boringssl.h>
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#include <openssl/opensslconf.h>
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#if defined(BORINGSSL_PREFIX)
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#include <boringssl_prefix_symbols.h>
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#endif
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#if defined(__cplusplus)
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extern "C" {
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#endif
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#if defined(__x86_64) || defined(_M_AMD64) || defined(_M_X64)
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#define OPENSSL_64_BIT
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#define OPENSSL_X86_64
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#elif defined(__x86) || defined(__i386) || defined(__i386__) || defined(_M_IX86)
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#define OPENSSL_32_BIT
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#define OPENSSL_X86
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#elif defined(__aarch64__)
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#define OPENSSL_64_BIT
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#define OPENSSL_AARCH64
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#elif defined(__arm) || defined(__arm__) || defined(_M_ARM)
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#define OPENSSL_32_BIT
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#define OPENSSL_ARM
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#elif (defined(__PPC64__) || defined(__powerpc64__)) && defined(_LITTLE_ENDIAN)
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#define OPENSSL_64_BIT
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#define OPENSSL_PPC64LE
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#elif defined(__mips__) && !defined(__LP64__)
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#define OPENSSL_32_BIT
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#define OPENSSL_MIPS
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#elif defined(__mips__) && defined(__LP64__)
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#define OPENSSL_64_BIT
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#define OPENSSL_MIPS64
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#elif defined(__pnacl__)
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#define OPENSSL_32_BIT
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#define OPENSSL_PNACL
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#elif defined(__wasm__)
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#define OPENSSL_32_BIT
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#elif defined(__asmjs__)
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#define OPENSSL_32_BIT
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#elif defined(__myriad2__)
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#define OPENSSL_32_BIT
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#else
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// Note BoringSSL only supports standard 32-bit and 64-bit two's-complement,
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// little-endian architectures. Functions will not produce the correct answer
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// on other systems. Run the crypto_test binary, notably
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// crypto/compiler_test.cc, before adding a new architecture.
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#error "Unknown target CPU"
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#endif
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#if defined(__APPLE__)
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#define OPENSSL_APPLE
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#if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
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#define OPENSSL_IOS
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#endif
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#endif
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#if defined(_WIN32)
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#define OPENSSL_WINDOWS
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#endif
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#if defined(__linux__)
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#define OPENSSL_LINUX
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#endif
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#if defined(__Fuchsia__)
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#define OPENSSL_FUCHSIA
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#endif
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#if defined(TRUSTY)
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#define OPENSSL_TRUSTY
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#define OPENSSL_NO_THREADS_CORRUPT_MEMORY_AND_LEAK_SECRETS_IF_THREADED
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#endif
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#if defined(__ANDROID_API__)
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#define OPENSSL_ANDROID
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#endif
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// BoringSSL requires platform's locking APIs to make internal global state
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// thread-safe, including the PRNG. On some single-threaded embedded platforms,
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// locking APIs may not exist, so this dependency may be disabled with the
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// following build flag.
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//
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// IMPORTANT: Doing so means the consumer promises the library will never be
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// used in any multi-threaded context. It causes BoringSSL to be globally
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// thread-unsafe. Setting it inappropriately will subtly and unpredictably
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// corrupt memory and leak secret keys.
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//
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// Do not set this flag on any platform where threads are possible. BoringSSL
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// maintainers will not provide support for any consumers that do so. Changes
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// which break such unsupported configurations will not be reverted.
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#if !defined(OPENSSL_NO_THREADS_CORRUPT_MEMORY_AND_LEAK_SECRETS_IF_THREADED)
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#define OPENSSL_THREADS
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#endif
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#define OPENSSL_IS_BORINGSSL
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#define OPENSSL_VERSION_NUMBER 0x1010007f
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#define SSLEAY_VERSION_NUMBER OPENSSL_VERSION_NUMBER
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// BORINGSSL_API_VERSION is a positive integer that increments as BoringSSL
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// changes over time. The value itself is not meaningful. It will be incremented
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// whenever is convenient to coordinate an API change with consumers. This will
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// not denote any special point in development.
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//
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// A consumer may use this symbol in the preprocessor to temporarily build
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// against multiple revisions of BoringSSL at the same time. It is not
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// recommended to do so for longer than is necessary.
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#define BORINGSSL_API_VERSION 9
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#if defined(BORINGSSL_SHARED_LIBRARY)
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#if defined(OPENSSL_WINDOWS)
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#if defined(BORINGSSL_IMPLEMENTATION)
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#define OPENSSL_EXPORT __declspec(dllexport)
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#else
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#define OPENSSL_EXPORT __declspec(dllimport)
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#endif
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#else // defined(OPENSSL_WINDOWS)
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#if defined(BORINGSSL_IMPLEMENTATION)
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#define OPENSSL_EXPORT __attribute__((visibility("default")))
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#else
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#define OPENSSL_EXPORT
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#endif
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#endif // defined(OPENSSL_WINDOWS)
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#else // defined(BORINGSSL_SHARED_LIBRARY)
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#define OPENSSL_EXPORT
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#endif // defined(BORINGSSL_SHARED_LIBRARY)
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#if defined(__GNUC__) || defined(__clang__)
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// MinGW has two different printf implementations. Ensure the format macro
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// matches the selected implementation. See
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// https://sourceforge.net/p/mingw-w64/wiki2/gnu%20printf/.
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#if defined(__MINGW_PRINTF_FORMAT)
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#define OPENSSL_PRINTF_FORMAT_FUNC(string_index, first_to_check) \
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__attribute__( \
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(__format__(__MINGW_PRINTF_FORMAT, string_index, first_to_check)))
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#else
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#define OPENSSL_PRINTF_FORMAT_FUNC(string_index, first_to_check) \
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__attribute__((__format__(__printf__, string_index, first_to_check)))
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#endif
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#else
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#define OPENSSL_PRINTF_FORMAT_FUNC(string_index, first_to_check)
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#endif
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// OPENSSL_MSVC_PRAGMA emits a pragma on MSVC and nothing on other compilers.
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#if defined(_MSC_VER)
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#define OPENSSL_MSVC_PRAGMA(arg) __pragma(arg)
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#else
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#define OPENSSL_MSVC_PRAGMA(arg)
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#endif
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#if defined(__GNUC__) || defined(__clang__)
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#define OPENSSL_UNUSED __attribute__((unused))
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#else
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#define OPENSSL_UNUSED
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#endif
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// C and C++ handle inline functions differently. In C++, an inline function is
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// defined in just the header file, potentially emitted in multiple compilation
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// units (in cases the compiler did not inline), but each copy must be identical
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// to satsify ODR. In C, a non-static inline must be manually emitted in exactly
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// one compilation unit with a separate extern inline declaration.
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//
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// In both languages, exported inline functions referencing file-local symbols
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// are problematic. C forbids this altogether (though GCC and Clang seem not to
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// enforce it). It works in C++, but ODR requires the definitions be identical,
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// including all names in the definitions resolving to the "same entity". In
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// practice, this is unlikely to be a problem, but an inline function that
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// returns a pointer to a file-local symbol
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// could compile oddly.
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//
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// Historically, we used static inline in headers. However, to satisfy ODR, use
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// plain inline in C++, to allow inline consumer functions to call our header
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// functions. Plain inline would also work better with C99 inline, but that is
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// not used much in practice, extern inline is tedious, and there are conflicts
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// with the old gnu89 model:
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// https://stackoverflow.com/questions/216510/extern-inline
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#if defined(__cplusplus)
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#define OPENSSL_INLINE inline
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#else
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// Add OPENSSL_UNUSED so that, should an inline function be emitted via macro
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// (e.g. a |STACK_OF(T)| implementation) in a source file without tripping
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// clang's -Wunused-function.
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#define OPENSSL_INLINE static inline OPENSSL_UNUSED
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#endif
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#if defined(BORINGSSL_UNSAFE_FUZZER_MODE) && \
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!defined(BORINGSSL_UNSAFE_DETERMINISTIC_MODE)
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#define BORINGSSL_UNSAFE_DETERMINISTIC_MODE
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#endif
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#if defined(__has_feature)
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#if __has_feature(address_sanitizer)
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#define OPENSSL_ASAN
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#endif
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#if __has_feature(thread_sanitizer)
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#define OPENSSL_TSAN
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#endif
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#if __has_feature(memory_sanitizer)
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#define OPENSSL_MSAN
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#define OPENSSL_ASM_INCOMPATIBLE
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#endif
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#endif
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#if defined(OPENSSL_ASM_INCOMPATIBLE)
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#undef OPENSSL_ASM_INCOMPATIBLE
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#if !defined(OPENSSL_NO_ASM)
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#define OPENSSL_NO_ASM
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#endif
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#endif // OPENSSL_ASM_INCOMPATIBLE
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#if defined(__cplusplus)
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// enums can be predeclared, but only in C++ and only if given an explicit type.
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// C doesn't support setting an explicit type for enums thus a #define is used
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// to do this only for C++. However, the ABI type between C and C++ need to have
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// equal sizes, which is confirmed in a unittest.
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#define BORINGSSL_ENUM_INT : int
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enum ssl_early_data_reason_t BORINGSSL_ENUM_INT;
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enum ssl_encryption_level_t BORINGSSL_ENUM_INT;
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enum ssl_private_key_result_t BORINGSSL_ENUM_INT;
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enum ssl_renegotiate_mode_t BORINGSSL_ENUM_INT;
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enum ssl_select_cert_result_t BORINGSSL_ENUM_INT;
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enum ssl_select_cert_result_t BORINGSSL_ENUM_INT;
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enum ssl_ticket_aead_result_t BORINGSSL_ENUM_INT;
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enum ssl_verify_result_t BORINGSSL_ENUM_INT;
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#else
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#define BORINGSSL_ENUM_INT
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#endif
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// CRYPTO_THREADID is a dummy value.
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typedef int CRYPTO_THREADID;
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typedef int ASN1_BOOLEAN;
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typedef int ASN1_NULL;
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typedef struct ASN1_ITEM_st ASN1_ITEM;
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typedef struct asn1_object_st ASN1_OBJECT;
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typedef struct asn1_pctx_st ASN1_PCTX;
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typedef struct asn1_string_st ASN1_BIT_STRING;
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typedef struct asn1_string_st ASN1_BMPSTRING;
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typedef struct asn1_string_st ASN1_ENUMERATED;
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typedef struct asn1_string_st ASN1_GENERALIZEDTIME;
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typedef struct asn1_string_st ASN1_GENERALSTRING;
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typedef struct asn1_string_st ASN1_IA5STRING;
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typedef struct asn1_string_st ASN1_INTEGER;
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typedef struct asn1_string_st ASN1_OCTET_STRING;
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typedef struct asn1_string_st ASN1_PRINTABLESTRING;
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typedef struct asn1_string_st ASN1_STRING;
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typedef struct asn1_string_st ASN1_T61STRING;
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typedef struct asn1_string_st ASN1_TIME;
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typedef struct asn1_string_st ASN1_UNIVERSALSTRING;
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typedef struct asn1_string_st ASN1_UTCTIME;
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typedef struct asn1_string_st ASN1_UTF8STRING;
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typedef struct asn1_string_st ASN1_VISIBLESTRING;
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typedef struct asn1_type_st ASN1_TYPE;
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typedef struct AUTHORITY_KEYID_st AUTHORITY_KEYID;
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typedef struct BASIC_CONSTRAINTS_st BASIC_CONSTRAINTS;
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typedef struct DIST_POINT_st DIST_POINT;
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typedef struct DSA_SIG_st DSA_SIG;
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typedef struct ISSUING_DIST_POINT_st ISSUING_DIST_POINT;
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typedef struct NAME_CONSTRAINTS_st NAME_CONSTRAINTS;
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typedef struct Netscape_spkac_st NETSCAPE_SPKAC;
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typedef struct Netscape_spki_st NETSCAPE_SPKI;
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typedef struct RIPEMD160state_st RIPEMD160_CTX;
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typedef struct X509_POLICY_CACHE_st X509_POLICY_CACHE;
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typedef struct X509_POLICY_LEVEL_st X509_POLICY_LEVEL;
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typedef struct X509_POLICY_NODE_st X509_POLICY_NODE;
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typedef struct X509_POLICY_TREE_st X509_POLICY_TREE;
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typedef struct X509_VERIFY_PARAM_st X509_VERIFY_PARAM;
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typedef struct X509_algor_st X509_ALGOR;
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typedef struct X509_crl_info_st X509_CRL_INFO;
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typedef struct X509_crl_st X509_CRL;
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typedef struct X509_extension_st X509_EXTENSION;
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typedef struct X509_info_st X509_INFO;
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typedef struct X509_name_entry_st X509_NAME_ENTRY;
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typedef struct X509_name_st X509_NAME;
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typedef struct X509_pubkey_st X509_PUBKEY;
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typedef struct X509_req_info_st X509_REQ_INFO;
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typedef struct X509_req_st X509_REQ;
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typedef struct X509_sig_st X509_SIG;
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typedef struct X509_val_st X509_VAL;
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typedef struct bignum_ctx BN_CTX;
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typedef struct bignum_st BIGNUM;
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typedef struct bio_method_st BIO_METHOD;
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typedef struct bio_st BIO;
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typedef struct bn_gencb_st BN_GENCB;
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typedef struct bn_mont_ctx_st BN_MONT_CTX;
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typedef struct buf_mem_st BUF_MEM;
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typedef struct cbb_st CBB;
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typedef struct cbs_st CBS;
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typedef struct cmac_ctx_st CMAC_CTX;
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typedef struct conf_st CONF;
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typedef struct conf_value_st CONF_VALUE;
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typedef struct crypto_buffer_pool_st CRYPTO_BUFFER_POOL;
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typedef struct crypto_buffer_st CRYPTO_BUFFER;
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typedef struct dh_st DH;
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typedef struct dsa_st DSA;
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typedef struct ec_group_st EC_GROUP;
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typedef struct ec_key_st EC_KEY;
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typedef struct ec_point_st EC_POINT;
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typedef struct ecdsa_method_st ECDSA_METHOD;
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typedef struct ecdsa_sig_st ECDSA_SIG;
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typedef struct engine_st ENGINE;
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typedef struct env_md_ctx_st EVP_MD_CTX;
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typedef struct env_md_st EVP_MD;
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typedef struct evp_aead_st EVP_AEAD;
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typedef struct evp_cipher_ctx_st EVP_CIPHER_CTX;
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typedef struct evp_cipher_st EVP_CIPHER;
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typedef struct evp_encode_ctx_st EVP_ENCODE_CTX;
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typedef struct evp_pkey_asn1_method_st EVP_PKEY_ASN1_METHOD;
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typedef struct evp_pkey_ctx_st EVP_PKEY_CTX;
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typedef struct evp_pkey_method_st EVP_PKEY_METHOD;
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typedef struct evp_pkey_st EVP_PKEY;
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typedef struct hmac_ctx_st HMAC_CTX;
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typedef struct md4_state_st MD4_CTX;
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typedef struct md5_state_st MD5_CTX;
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typedef struct ossl_init_settings_st OPENSSL_INIT_SETTINGS;
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typedef struct pkcs12_st PKCS12;
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typedef struct pkcs8_priv_key_info_st PKCS8_PRIV_KEY_INFO;
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typedef struct private_key_st X509_PKEY;
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typedef struct rand_meth_st RAND_METHOD;
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typedef struct rc4_key_st RC4_KEY;
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typedef struct rsa_meth_st RSA_METHOD;
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typedef struct rsa_st RSA;
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typedef struct sha256_state_st SHA256_CTX;
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typedef struct sha512_state_st SHA512_CTX;
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typedef struct sha_state_st SHA_CTX;
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typedef struct spake2_ctx_st SPAKE2_CTX;
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typedef struct srtp_protection_profile_st SRTP_PROTECTION_PROFILE;
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typedef struct ssl_cipher_st SSL_CIPHER;
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typedef struct ssl_ctx_st SSL_CTX;
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typedef struct ssl_method_st SSL_METHOD;
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typedef struct ssl_private_key_method_st SSL_PRIVATE_KEY_METHOD;
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typedef struct ssl_quic_method_st SSL_QUIC_METHOD;
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typedef struct ssl_session_st SSL_SESSION;
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typedef struct ssl_st SSL;
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typedef struct ssl_ticket_aead_method_st SSL_TICKET_AEAD_METHOD;
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typedef struct st_ERR_FNS ERR_FNS;
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typedef struct v3_ext_ctx X509V3_CTX;
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typedef struct x509_attributes_st X509_ATTRIBUTE;
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typedef struct x509_cert_aux_st X509_CERT_AUX;
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typedef struct x509_cinf_st X509_CINF;
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typedef struct x509_crl_method_st X509_CRL_METHOD;
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typedef struct x509_lookup_st X509_LOOKUP;
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typedef struct x509_revoked_st X509_REVOKED;
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typedef struct x509_st X509;
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typedef struct x509_store_ctx_st X509_STORE_CTX;
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typedef struct x509_store_st X509_STORE;
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typedef struct x509_trust_st X509_TRUST;
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typedef void *OPENSSL_BLOCK;
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#if defined(__cplusplus)
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} // extern C
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#elif !defined(BORINGSSL_NO_CXX)
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#define BORINGSSL_NO_CXX
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#endif
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#if defined(BORINGSSL_PREFIX)
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#define BSSL_NAMESPACE_BEGIN \
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namespace bssl { \
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inline namespace BORINGSSL_PREFIX {
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#define BSSL_NAMESPACE_END \
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} \
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}
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#else
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#define BSSL_NAMESPACE_BEGIN namespace bssl {
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#define BSSL_NAMESPACE_END }
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#endif
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// MSVC doesn't set __cplusplus to 201103 to indicate C++11 support (see
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// https://connect.microsoft.com/VisualStudio/feedback/details/763051/a-value-of-predefined-macro-cplusplus-is-still-199711l)
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// so MSVC is just assumed to support C++11.
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#if !defined(BORINGSSL_NO_CXX) && __cplusplus < 201103L && !defined(_MSC_VER)
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#define BORINGSSL_NO_CXX
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#endif
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#if !defined(BORINGSSL_NO_CXX)
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extern "C++" {
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#include <memory>
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// STLPort, used by some Android consumers, not have std::unique_ptr.
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#if defined(_STLPORT_VERSION)
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#define BORINGSSL_NO_CXX
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#endif
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|
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} // extern C++
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#endif // !BORINGSSL_NO_CXX
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|
|
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#if defined(BORINGSSL_NO_CXX)
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|
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#define BORINGSSL_MAKE_DELETER(type, deleter)
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#define BORINGSSL_MAKE_UP_REF(type, up_ref_func)
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|
|
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#else
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|
|
|
extern "C++" {
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|
|
|
BSSL_NAMESPACE_BEGIN
|
|
|
|
namespace internal {
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|
|
|
// The Enable parameter is ignored and only exists so specializations can use
|
|
// SFINAE.
|
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template <typename T, typename Enable = void>
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struct DeleterImpl {};
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|
|
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template <typename T>
|
|
struct Deleter {
|
|
void operator()(T *ptr) {
|
|
// Rather than specialize Deleter for each type, we specialize
|
|
// DeleterImpl. This allows bssl::UniquePtr<T> to be used while only
|
|
// including base.h as long as the destructor is not emitted. This matches
|
|
// std::unique_ptr's behavior on forward-declared types.
|
|
//
|
|
// DeleterImpl itself is specialized in the corresponding module's header
|
|
// and must be included to release an object. If not included, the compiler
|
|
// will error that DeleterImpl<T> does not have a method Free.
|
|
DeleterImpl<T>::Free(ptr);
|
|
}
|
|
};
|
|
|
|
template <typename T, typename CleanupRet, void (*init)(T *),
|
|
CleanupRet (*cleanup)(T *)>
|
|
class StackAllocated {
|
|
public:
|
|
StackAllocated() { init(&ctx_); }
|
|
~StackAllocated() { cleanup(&ctx_); }
|
|
|
|
StackAllocated(const StackAllocated<T, CleanupRet, init, cleanup> &) = delete;
|
|
T& operator=(const StackAllocated<T, CleanupRet, init, cleanup> &) = delete;
|
|
|
|
T *get() { return &ctx_; }
|
|
const T *get() const { return &ctx_; }
|
|
|
|
T *operator->() { return &ctx_; }
|
|
const T *operator->() const { return &ctx_; }
|
|
|
|
void Reset() {
|
|
cleanup(&ctx_);
|
|
init(&ctx_);
|
|
}
|
|
|
|
private:
|
|
T ctx_;
|
|
};
|
|
|
|
} // namespace internal
|
|
|
|
#define BORINGSSL_MAKE_DELETER(type, deleter) \
|
|
namespace internal { \
|
|
template <> \
|
|
struct DeleterImpl<type> { \
|
|
static void Free(type *ptr) { deleter(ptr); } \
|
|
}; \
|
|
}
|
|
|
|
// Holds ownership of heap-allocated BoringSSL structures. Sample usage:
|
|
// bssl::UniquePtr<RSA> rsa(RSA_new());
|
|
// bssl::UniquePtr<BIO> bio(BIO_new(BIO_s_mem()));
|
|
template <typename T>
|
|
using UniquePtr = std::unique_ptr<T, internal::Deleter<T>>;
|
|
|
|
#define BORINGSSL_MAKE_UP_REF(type, up_ref_func) \
|
|
inline UniquePtr<type> UpRef(type *v) { \
|
|
if (v != nullptr) { \
|
|
up_ref_func(v); \
|
|
} \
|
|
return UniquePtr<type>(v); \
|
|
} \
|
|
\
|
|
inline UniquePtr<type> UpRef(const UniquePtr<type> &ptr) { \
|
|
return UpRef(ptr.get()); \
|
|
}
|
|
|
|
BSSL_NAMESPACE_END
|
|
|
|
} // extern C++
|
|
|
|
#endif // !BORINGSSL_NO_CXX
|
|
|
|
#endif // OPENSSL_HEADER_BASE_H
|