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/**
* Copyright (C) 2020-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* 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
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* 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 Server Side 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/op_msg_fuzzer_fixture.h"
#include "mongo/db/auth/authorization_session_for_test.h"
#include "mongo/db/auth/authz_manager_external_state_local.h"
#include "mongo/db/catalog/collection.h"
#include "mongo/db/catalog/collection_impl.h"
#include "mongo/db/catalog/database_holder.h"
#include "mongo/db/catalog/database_holder_impl.h"
#include "mongo/db/client.h"
#include "mongo/db/index/index_access_method.h"
#include "mongo/db/index/index_access_method_factory_impl.h"
#include "mongo/db/operation_context.h"
#include "mongo/db/repl/repl_client_info.h"
#include "mongo/db/repl/replication_coordinator_mock.h"
#include "mongo/db/s/collection_sharding_state_factory_standalone.h"
#include "mongo/db/service_entry_point_common.h"
#include "mongo/db/service_entry_point_mongod.h"
#include "mongo/db/storage/storage_engine_mock.h"
#include "mongo/db/vector_clock_mutable.h"
#include "mongo/transport/service_entry_point_impl.h"
namespace mongo {
OpMsgFuzzerFixture::OpMsgFuzzerFixture(bool skipGlobalInitializers) {
if (!skipGlobalInitializers) {
auto ret = runGlobalInitializers(std::vector<std::string>{});
invariant(ret.isOK());
}
setGlobalServiceContext(ServiceContext::make());
_session = _transportLayer.createSession();
_serviceContext = getGlobalServiceContext();
_serviceContext->setServiceEntryPoint(
std::make_unique<ServiceEntryPointMongod>(_serviceContext));
_clientStrand = ClientStrand::make(_serviceContext->makeClient("test", _session));
_serviceContext->setStorageEngine(std::make_unique<StorageEngineMock>());
CollectionShardingStateFactory::set(
_serviceContext,
std::make_unique<CollectionShardingStateFactoryStandalone>(_serviceContext));
DatabaseHolder::set(_serviceContext, std::make_unique<DatabaseHolderImpl>());
IndexAccessMethodFactory::set(_serviceContext,
std::make_unique<IndexAccessMethodFactoryImpl>());
Collection::Factory::set(_serviceContext, std::make_unique<CollectionImpl::FactoryImpl>());
auto localExternalState = std::make_unique<AuthzManagerExternalStateMock>();
_externalState = localExternalState.get();
auto localAuthzManager =
std::make_unique<AuthorizationManagerImpl>(_serviceContext, std::move(localExternalState));
_authzManager = localAuthzManager.get();
_externalState->setAuthorizationManager(_authzManager);
_authzManager->setAuthEnabled(true);
AuthorizationManager::set(_serviceContext, std::move(localAuthzManager));
auto replCoord = std::make_unique<repl::ReplicationCoordinatorMock>(_serviceContext);
invariant(replCoord->setFollowerMode(repl::MemberState::RS_PRIMARY));
repl::ReplicationCoordinator::set(_serviceContext, std::move(replCoord));
}
int OpMsgFuzzerFixture::testOneInput(const char* Data, size_t Size) {
if (Size < sizeof(MSGHEADER::Value)) {
return 0;
}
auto clientGuard = _clientStrand->bind();
auto opCtx = _serviceContext->makeOperationContext(clientGuard.get());
VectorClockMutable::get(_serviceContext)->tickClusterTimeTo(kInMemoryLogicalTime);
int new_size = Size + sizeof(int);
auto sb = SharedBuffer::allocate(new_size);
memcpy(sb.get(), &new_size, sizeof(int));
memcpy(sb.get() + sizeof(int), Data, Size);
Message msg(std::move(sb));
try {
_serviceContext->getServiceEntryPoint()->handleRequest(opCtx.get(), msg).get();
} catch (const AssertionException&) {
// We need to catch exceptions caused by invalid inputs
}
return 0;
}
} // namespace mongo
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