c3ef76f327
OpenSSH, especially, does some terrible things that mean that it needs the EVP_CIPHER structure to be exposed ☹. Damian is open to a better API to replace this, but only if OpenSSL agree too. Either way, it won't be happening soon. Change-Id: I393b7a6af6694d4d2fe9ebcccd40286eff4029bd Reviewed-on: https://boringssl-review.googlesource.com/4330 Reviewed-by: Adam Langley <agl@google.com>
113 lines
3.8 KiB
C
113 lines
3.8 KiB
C
/* Copyright (c) 2014, Google Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
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#include <openssl/crypto.h>
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#include "internal.h"
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#if !defined(OPENSSL_NO_ASM) && \
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(defined(OPENSSL_X86) || defined(OPENSSL_X86_64) || \
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defined(OPENSSL_ARM) || defined(OPENSSL_AARCH64))
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/* x86, x86_64 and the ARMs need to record the result of a cpuid call for the
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* asm to work correctly, unless compiled without asm code. */
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#define NEED_CPUID
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#else
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/* Otherwise, don't emit a static initialiser. */
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#if !defined(BORINGSSL_NO_STATIC_INITIALIZER)
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#define BORINGSSL_NO_STATIC_INITIALIZER
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#endif
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#endif /* !OPENSSL_NO_ASM && (OPENSSL_X86 || OPENSSL_X86_64 ||
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OPENSSL_ARM || OPENSSL_AARCH64) */
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/* The capability variables are defined in this file in order to work around a
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* linker bug. When linking with a .a, if no symbols in a .o are referenced
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* then the .o is discarded, even if it has constructor functions.
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*
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* This still means that any binaries that don't include some functionality
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* that tests the capability values will still skip the constructor but, so
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* far, the init constructor function only sets the capability variables. */
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#if defined(OPENSSL_X86) || defined(OPENSSL_X86_64)
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/* This value must be explicitly initialised to zero in order to work around a
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* bug in libtool or the linker on OS X.
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*
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* If not initialised then it becomes a "common symbol". When put into an
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* archive, linking on OS X will fail to resolve common symbols. By
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* initialising it to zero, it becomes a "data symbol", which isn't so
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* affected. */
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uint32_t OPENSSL_ia32cap_P[4] = {0};
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#elif defined(OPENSSL_ARM) || defined(OPENSSL_AARCH64)
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#include "arm_arch.h"
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#if defined(__ARM_NEON__)
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uint32_t OPENSSL_armcap_P = ARMV7_NEON | ARMV7_NEON_FUNCTIONAL;
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#else
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uint32_t OPENSSL_armcap_P = ARMV7_NEON_FUNCTIONAL;
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#endif
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#endif
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#if defined(OPENSSL_WINDOWS)
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#define OPENSSL_CDECL __cdecl
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#else
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#define OPENSSL_CDECL
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#endif
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#if !defined(BORINGSSL_NO_STATIC_INITIALIZER)
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#if !defined(OPENSSL_WINDOWS)
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static void do_library_init(void) __attribute__ ((constructor));
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#else
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#pragma section(".CRT$XCU", read)
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static void __cdecl do_library_init(void);
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__declspec(allocate(".CRT$XCU")) void(*library_init_constructor)(void) =
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do_library_init;
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#endif
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#endif /* !BORINGSSL_NO_STATIC_INITIALIZER */
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/* do_library_init is the actual initialization function. If
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* BORINGSSL_NO_STATIC_INITIALIZER isn't defined, this is set as a static
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* initializer. Otherwise, it is called by CRYPTO_library_init. */
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static void OPENSSL_CDECL do_library_init(void) {
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/* WARNING: this function may only configure the capability variables. See the
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* note above about the linker bug. */
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#if defined(NEED_CPUID)
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OPENSSL_cpuid_setup();
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#endif
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}
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void CRYPTO_library_init(void) {
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/* TODO(davidben): It would be tidier if this build knob could be replaced
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* with an internal lazy-init mechanism that would handle things correctly
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* in-library. */
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#if defined(BORINGSSL_NO_STATIC_INITIALIZER)
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do_library_init();
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#endif
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}
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const char *SSLeay_version(int unused) {
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return SSLeay();
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}
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const char *SSLeay(void) {
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return "BoringSSL";
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}
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