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author | ADAM David Alan Martin <adam.martin@10gen.com> | 2017-05-03 13:14:53 -0400 |
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committer | ADAM David Alan Martin <adam.martin@10gen.com> | 2017-05-03 13:14:53 -0400 |
commit | b7c013aa097b2d999ad3f942cdfce130558ef40f (patch) | |
tree | 04e39ddadd003bff628faeea9b7bf0fb812465e9 /src/mongo/db/logical_time_validator.cpp | |
parent | 606b3930d1ca73f0184f4b29bb52917cc15e94cf (diff) | |
download | mongo-b7c013aa097b2d999ad3f942cdfce130558ef40f.tar.gz |
Revert "SERVER-28562 Move LogicalTime HMAC computation outside collection lock"
This reverts commit 1a6c4ecddfa4bb7a7275dc4b1bf5b79222aa4b72.
Diffstat (limited to 'src/mongo/db/logical_time_validator.cpp')
-rw-r--r-- | src/mongo/db/logical_time_validator.cpp | 110 |
1 files changed, 0 insertions, 110 deletions
diff --git a/src/mongo/db/logical_time_validator.cpp b/src/mongo/db/logical_time_validator.cpp deleted file mode 100644 index 3e6e4466742..00000000000 --- a/src/mongo/db/logical_time_validator.cpp +++ /dev/null @@ -1,110 +0,0 @@ -/** - * Copyright (C) 2017 MongoDB, Inc. - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU Affero General Public License, version 3, - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU Affero General Public License for more details. - * - * You should have received a copy of the GNU Affero General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - * - * As a special exception, the copyright holders give permission to link the - * code of portions of this program with the OpenSSL library under certain - * conditions as described in each individual source file and distribute - * linked combinations including the program with the OpenSSL library. You - * must comply with the GNU Affero General Public License in all respects for - * all of the code used other than as permitted herein. If you modify file(s) - * with this exception, you may extend this exception to your version of the - * file(s), but you are not obligated to do so. If you do not wish to do so, - * delete this exception statement from your version. If you delete this - * exception statement from all source files in the program, then also delete - * it in the license file. - */ - -#include "mongo/platform/basic.h" - -#include "mongo/db/logical_time_validator.h" - -#include "mongo/db/operation_context.h" -#include "mongo/db/service_context.h" - -namespace mongo { - -namespace { -const auto getLogicalClockValidator = - ServiceContext::declareDecoration<std::unique_ptr<LogicalTimeValidator>>(); -stdx::mutex validatorMutex; - -// TODO: SERVER-28127 Implement KeysCollectionManager -// Remove _tempKey and its uses from logical clock, and pass actual key from key manager. -TimeProofService::Key tempKey = {}; -} - -LogicalTimeValidator* LogicalTimeValidator::get(ServiceContext* service) { - stdx::lock_guard<stdx::mutex> lk(validatorMutex); - return getLogicalClockValidator(service).get(); -} - -LogicalTimeValidator* LogicalTimeValidator::get(OperationContext* ctx) { - return get(ctx->getClient()->getServiceContext()); -} - -void LogicalTimeValidator::set(ServiceContext* service, - std::unique_ptr<LogicalTimeValidator> newValidator) { - stdx::lock_guard<stdx::mutex> lk(validatorMutex); - auto& validator = getLogicalClockValidator(service); - validator = std::move(newValidator); -} - -SignedLogicalTime LogicalTimeValidator::signLogicalTime(const LogicalTime& newTime) { - // Compare and calculate HMAC inside mutex to prevent multiple threads computing HMAC for the - // same logical time. - stdx::lock_guard<stdx::mutex> lk(_mutex); - if (newTime == _lastSeenValidTime.getTime()) { - return _lastSeenValidTime; - } - - auto signature = _timeProofService.getProof(newTime, tempKey); - SignedLogicalTime newSignedTime(newTime, std::move(signature), 0); - - if (newTime > _lastSeenValidTime.getTime()) { - _lastSeenValidTime = newSignedTime; - } - - return newSignedTime; -} - -Status LogicalTimeValidator::validate(const SignedLogicalTime& newTime) { - { - stdx::lock_guard<stdx::mutex> lk(_mutex); - if (newTime.getTime() == _lastSeenValidTime.getTime()) { - return Status::OK(); - } - } - - const auto newProof = newTime.getProof(); - // Logical time is only sent if a server's clock can verify and sign logical times, so any - // received logical times should have proofs. - invariant(newProof); - - auto res = _timeProofService.checkProof(newTime.getTime(), newProof.get(), tempKey); - if (res != Status::OK()) { - return res; - } - - return Status::OK(); -} - -void LogicalTimeValidator::updateCacheTrustedSource(const SignedLogicalTime& newTime) { - stdx::lock_guard<stdx::mutex> lk(_mutex); - if (newTime.getTime() > _lastSeenValidTime.getTime()) { - _lastSeenValidTime = newTime; - } -} - -} // namespace mongo |