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-rw-r--r--crypto/openssl_util.cc132
1 files changed, 0 insertions, 132 deletions
diff --git a/crypto/openssl_util.cc b/crypto/openssl_util.cc
deleted file mode 100644
index 964d83b843..0000000000
--- a/crypto/openssl_util.cc
+++ /dev/null
@@ -1,132 +0,0 @@
-// Copyright (c) 2011 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.
-
-#include "crypto/openssl_util.h"
-
-#include <openssl/err.h>
-#include <openssl/ssl.h>
-#include <openssl/cpu.h>
-
-#include "base/logging.h"
-#include "base/memory/scoped_vector.h"
-#include "base/memory/singleton.h"
-#include "base/strings/string_piece.h"
-#include "base/synchronization/lock.h"
-#include "build/build_config.h"
-
-#if defined(OS_ANDROID) && defined(ARCH_CPU_ARMEL)
-#include <cpu-features.h>
-#include "base/cpu.h"
-#endif
-
-namespace crypto {
-
-namespace {
-
-void CurrentThreadId(CRYPTO_THREADID* id) {
- CRYPTO_THREADID_set_numeric(
- id, static_cast<unsigned long>(base::PlatformThread::CurrentId()));
-}
-
-// Singleton for initializing and cleaning up the OpenSSL library.
-class OpenSSLInitSingleton {
- public:
- static OpenSSLInitSingleton* GetInstance() {
- // We allow the SSL environment to leak for multiple reasons:
- // - it is used from a non-joinable worker thread that is not stopped on
- // shutdown, hence may still be using OpenSSL library after the AtExit
- // runner has completed.
- // - There are other OpenSSL related singletons (e.g. the client socket
- // context) who's cleanup depends on the global environment here, but
- // we can't control the order the AtExit handlers will run in so
- // allowing the global environment to leak at least ensures it is
- // available for those other singletons to reliably cleanup.
- return Singleton<OpenSSLInitSingleton,
- LeakySingletonTraits<OpenSSLInitSingleton> >::get();
- }
- private:
- friend struct DefaultSingletonTraits<OpenSSLInitSingleton>;
- OpenSSLInitSingleton() {
-#if defined(OS_ANDROID) && defined(ARCH_CPU_ARMEL)
- const bool has_neon =
- (android_getCpuFeatures() & ANDROID_CPU_ARM_FEATURE_NEON) != 0;
- // CRYPTO_set_NEON_capable is called before |SSL_library_init| because this
- // stops BoringSSL from probing for NEON support via SIGILL in the case
- // that getauxval isn't present.
- CRYPTO_set_NEON_capable(has_neon);
- // See https://code.google.com/p/chromium/issues/detail?id=341598
- base::CPU cpu;
- CRYPTO_set_NEON_functional(!cpu.has_broken_neon());
-#endif
-
- SSL_load_error_strings();
- SSL_library_init();
- int num_locks = CRYPTO_num_locks();
- locks_.reserve(num_locks);
- for (int i = 0; i < num_locks; ++i)
- locks_.push_back(new base::Lock());
- CRYPTO_set_locking_callback(LockingCallback);
- CRYPTO_THREADID_set_callback(CurrentThreadId);
- }
-
- ~OpenSSLInitSingleton() {
- CRYPTO_set_locking_callback(NULL);
- EVP_cleanup();
- ERR_free_strings();
- }
-
- static void LockingCallback(int mode, int n, const char* file, int line) {
- OpenSSLInitSingleton::GetInstance()->OnLockingCallback(mode, n, file, line);
- }
-
- void OnLockingCallback(int mode, int n, const char* file, int line) {
- CHECK_LT(static_cast<size_t>(n), locks_.size());
- if (mode & CRYPTO_LOCK)
- locks_[n]->Acquire();
- else
- locks_[n]->Release();
- }
-
- // These locks are used and managed by OpenSSL via LockingCallback().
- ScopedVector<base::Lock> locks_;
-
- DISALLOW_COPY_AND_ASSIGN(OpenSSLInitSingleton);
-};
-
-// Callback routine for OpenSSL to print error messages. |str| is a
-// NULL-terminated string of length |len| containing diagnostic information
-// such as the library, function and reason for the error, the file and line
-// where the error originated, plus potentially any context-specific
-// information about the error. |context| contains a pointer to user-supplied
-// data, which is currently unused.
-// If this callback returns a value <= 0, OpenSSL will stop processing the
-// error queue and return, otherwise it will continue calling this function
-// until all errors have been removed from the queue.
-int OpenSSLErrorCallback(const char* str, size_t len, void* context) {
- DVLOG(1) << "\t" << base::StringPiece(str, len);
- return 1;
-}
-
-} // namespace
-
-void EnsureOpenSSLInit() {
- (void)OpenSSLInitSingleton::GetInstance();
-}
-
-void ClearOpenSSLERRStack(const tracked_objects::Location& location) {
- if (logging::DEBUG_MODE && VLOG_IS_ON(1)) {
- uint32_t error_num = ERR_peek_error();
- if (error_num == 0)
- return;
-
- std::string message;
- location.Write(true, true, &message);
- DVLOG(1) << "OpenSSL ERR_get_error stack from " << message;
- ERR_print_errors_cb(&OpenSSLErrorCallback, NULL);
- } else {
- ERR_clear_error();
- }
-}
-
-} // namespace crypto