| /* | |
| // Copyright (c) 2018 Intel Corporation | |
| // | |
| // Licensed under the Apache License, Version 2.0 (the "License"); | |
| // you may not use this file except in compliance with the License. | |
| // You may obtain a copy of the License at | |
| // | |
| // http://www.apache.org/licenses/LICENSE-2.0 | |
| // | |
| // Unless required by applicable law or agreed to in writing, software | |
| // distributed under the License is distributed on an "AS IS" BASIS, | |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| // See the License for the specific language governing permissions and | |
| // limitations under the License. | |
| */ | |
| #include "srvcfg_manager.hpp" | |
| #include <boost/asio/spawn.hpp> | |
| #include <fstream> | |
| #include <regex> | |
| extern std::unique_ptr<boost::asio::steady_timer> timer; | |
| extern std::map<std::string, std::shared_ptr<phosphor::service::ServiceConfig>> | |
| srvMgrObjects; | |
| static bool updateInProgress = false; | |
| namespace phosphor | |
| { | |
| namespace service | |
| { | |
| static constexpr const char* overrideConfFileName = "override.conf"; | |
| static constexpr const size_t restartTimeout = 15; // seconds | |
| static constexpr const char* systemd1UnitBasePath = | |
| "/org/freedesktop/systemd1/unit/"; | |
| static constexpr const char* systemdOverrideUnitBasePath = | |
| "/etc/systemd/system/"; | |
| void ServiceConfig::updateSocketProperties( | |
| const boost::container::flat_map<std::string, VariantType>& propertyMap) | |
| { | |
| auto listenIt = propertyMap.find("Listen"); | |
| if (listenIt != propertyMap.end()) | |
| { | |
| auto listenVal = | |
| std::get<std::vector<std::tuple<std::string, std::string>>>( | |
| listenIt->second); | |
| if (listenVal.size()) | |
| { | |
| protocol = std::get<0>(listenVal[0]); | |
| std::string port = std::get<1>(listenVal[0]); | |
| auto tmp = std::stoul(port.substr(port.find_last_of(":") + 1), | |
| nullptr, 10); | |
| if (tmp > std::numeric_limits<uint16_t>::max()) | |
| { | |
| throw std::out_of_range("Out of range"); | |
| } | |
| portNum = tmp; | |
| if (iface && iface->is_initialized()) | |
| { | |
| internalSet = true; | |
| iface->set_property(srvCfgPropPort, portNum); | |
| internalSet = false; | |
| } | |
| } | |
| } | |
| } | |
| void ServiceConfig::updateServiceProperties( | |
| const boost::container::flat_map<std::string, VariantType>& propertyMap) | |
| { | |
| auto stateIt = propertyMap.find("UnitFileState"); | |
| if (stateIt != propertyMap.end()) | |
| { | |
| stateValue = std::get<std::string>(stateIt->second); | |
| unitEnabledState = unitMaskedState = false; | |
| if (stateValue == stateMasked) | |
| { | |
| unitMaskedState = true; | |
| } | |
| else if (stateValue == stateEnabled) | |
| { | |
| unitEnabledState = true; | |
| } | |
| if (iface && iface->is_initialized()) | |
| { | |
| internalSet = true; | |
| iface->set_property(srvCfgPropMasked, unitMaskedState); | |
| iface->set_property(srvCfgPropEnabled, unitEnabledState); | |
| internalSet = false; | |
| } | |
| } | |
| auto subStateIt = propertyMap.find("SubState"); | |
| if (subStateIt != propertyMap.end()) | |
| { | |
| subStateValue = std::get<std::string>(subStateIt->second); | |
| if (subStateValue == subStateRunning) | |
| { | |
| unitRunningState = true; | |
| } | |
| if (iface && iface->is_initialized()) | |
| { | |
| internalSet = true; | |
| iface->set_property(srvCfgPropRunning, unitRunningState); | |
| internalSet = false; | |
| } | |
| } | |
| } | |
| void ServiceConfig::queryAndUpdateProperties() | |
| { | |
| conn->async_method_call( | |
| [this](boost::system::error_code ec, | |
| const boost::container::flat_map<std::string, VariantType>& | |
| propertyMap) { | |
| if (ec) | |
| { | |
| phosphor::logging::log<phosphor::logging::level::ERR>( | |
| "async_method_call error: Failed to service unit " | |
| "properties"); | |
| return; | |
| } | |
| try | |
| { | |
| updateServiceProperties(propertyMap); | |
| if (!socketObjectPath.empty()) | |
| { | |
| conn->async_method_call( | |
| [this](boost::system::error_code ec, | |
| const boost::container::flat_map< | |
| std::string, VariantType>& propertyMap) { | |
| if (ec) | |
| { | |
| phosphor::logging::log< | |
| phosphor::logging::level::ERR>( | |
| "async_method_call error: Failed to get " | |
| "all property"); | |
| return; | |
| } | |
| try | |
| { | |
| updateSocketProperties(propertyMap); | |
| if (!iface) | |
| { | |
| registerProperties(); | |
| } | |
| } | |
| catch (const std::exception& e) | |
| { | |
| phosphor::logging::log< | |
| phosphor::logging::level::ERR>( | |
| "Exception in getting socket properties", | |
| phosphor::logging::entry("WHAT=%s", | |
| e.what())); | |
| return; | |
| } | |
| }, | |
| sysdService, socketObjectPath, dBusPropIntf, | |
| dBusGetAllMethod, sysdSocketIntf); | |
| } | |
| else if (!iface) | |
| { | |
| registerProperties(); | |
| } | |
| } | |
| catch (const std::exception& e) | |
| { | |
| phosphor::logging::log<phosphor::logging::level::ERR>( | |
| "Exception in getting socket properties", | |
| phosphor::logging::entry("WHAT=%s", e.what())); | |
| return; | |
| } | |
| }, | |
| sysdService, serviceObjectPath, dBusPropIntf, dBusGetAllMethod, | |
| sysdUnitIntf); | |
| return; | |
| } | |
| void ServiceConfig::createSocketOverrideConf() | |
| { | |
| if (!socketObjectPath.empty()) | |
| { | |
| std::string socketUnitName(instantiatedUnitName + ".socket"); | |
| /// Check override socket directory exist, if not create it. | |
| std::experimental::filesystem::path ovrUnitFileDir( | |
| systemdOverrideUnitBasePath); | |
| ovrUnitFileDir += socketUnitName; | |
| ovrUnitFileDir += ".d"; | |
| if (!std::experimental::filesystem::exists(ovrUnitFileDir)) | |
| { | |
| if (!std::experimental::filesystem::create_directories( | |
| ovrUnitFileDir)) | |
| { | |
| phosphor::logging::log<phosphor::logging::level::ERR>( | |
| "Unable to create the directory.", | |
| phosphor::logging::entry("DIR=%s", ovrUnitFileDir.c_str())); | |
| phosphor::logging::elog<sdbusplus::xyz::openbmc_project:: | |
| Common::Error::InternalFailure>(); | |
| } | |
| } | |
| overrideConfDir = std::string(ovrUnitFileDir); | |
| } | |
| } | |
| ServiceConfig::ServiceConfig( | |
| sdbusplus::asio::object_server& srv_, | |
| std::shared_ptr<sdbusplus::asio::connection>& conn_, | |
| const std::string& objPath_, const std::string& baseUnitName_, | |
| const std::string& instanceName_, const std::string& serviceObjPath_, | |
| const std::string& socketObjPath_) : | |
| server(srv_), | |
| conn(conn_), objPath(objPath_), baseUnitName(baseUnitName_), | |
| instanceName(instanceName_), serviceObjectPath(serviceObjPath_), | |
| socketObjectPath(socketObjPath_) | |
| { | |
| instantiatedUnitName = baseUnitName + addInstanceName(instanceName, "@"); | |
| updatedFlag = 0; | |
| queryAndUpdateProperties(); | |
| return; | |
| } | |
| std::string ServiceConfig::getSocketUnitName() | |
| { | |
| return instantiatedUnitName + ".socket"; | |
| } | |
| std::string ServiceConfig::getServiceUnitName() | |
| { | |
| return instantiatedUnitName + ".service"; | |
| } | |
| bool ServiceConfig::isMaskedOut() | |
| { | |
| // return true if state is masked & no request to update the maskedState | |
| return ( | |
| stateValue == "masked" && | |
| !(updatedFlag & (1 << static_cast<uint8_t>(UpdatedProp::maskedState)))); | |
| } | |
| void ServiceConfig::stopAndApplyUnitConfig(boost::asio::yield_context yield) | |
| { | |
| if (!updatedFlag || isMaskedOut()) | |
| { | |
| // No updates / masked - Just return. | |
| return; | |
| } | |
| phosphor::logging::log<phosphor::logging::level::INFO>( | |
| "Applying new settings.", | |
| phosphor::logging::entry("OBJPATH=%s", objPath.c_str())); | |
| if (subStateValue == "running") | |
| { | |
| if (!socketObjectPath.empty()) | |
| { | |
| systemdUnitAction(conn, yield, getSocketUnitName(), sysdStopUnit); | |
| } | |
| systemdUnitAction(conn, yield, getServiceUnitName(), sysdStopUnit); | |
| } | |
| if (updatedFlag & (1 << static_cast<uint8_t>(UpdatedProp::port))) | |
| { | |
| createSocketOverrideConf(); | |
| // Create override config file and write data. | |
| std::string ovrCfgFile{overrideConfDir + "/" + overrideConfFileName}; | |
| std::string tmpFile{ovrCfgFile + "_tmp"}; | |
| std::ofstream cfgFile(tmpFile, std::ios::out); | |
| if (!cfgFile.good()) | |
| { | |
| phosphor::logging::log<phosphor::logging::level::ERR>( | |
| "Failed to open override.conf_tmp file"); | |
| phosphor::logging::elog<sdbusplus::xyz::openbmc_project::Common:: | |
| Error::InternalFailure>(); | |
| } | |
| // Write the socket header | |
| cfgFile << "[Socket]\n"; | |
| // Listen | |
| cfgFile << "Listen" << protocol << "=" | |
| << "\n"; | |
| cfgFile << "Listen" << protocol << "=" << portNum << "\n"; | |
| cfgFile.close(); | |
| if (std::rename(tmpFile.c_str(), ovrCfgFile.c_str()) != 0) | |
| { | |
| phosphor::logging::log<phosphor::logging::level::ERR>( | |
| "Failed to rename tmp file as override.conf"); | |
| std::remove(tmpFile.c_str()); | |
| phosphor::logging::elog<sdbusplus::xyz::openbmc_project::Common:: | |
| Error::InternalFailure>(); | |
| } | |
| } | |
| if (updatedFlag & ((1 << static_cast<uint8_t>(UpdatedProp::maskedState)) | | |
| (1 << static_cast<uint8_t>(UpdatedProp::enabledState)))) | |
| { | |
| std::vector<std::string> unitFiles; | |
| if (socketObjectPath.empty()) | |
| { | |
| unitFiles = {getServiceUnitName()}; | |
| } | |
| else | |
| { | |
| unitFiles = {getSocketUnitName(), getServiceUnitName()}; | |
| } | |
| systemdUnitFilesStateChange(conn, yield, unitFiles, stateValue, | |
| unitMaskedState, unitEnabledState); | |
| } | |
| return; | |
| } | |
| void ServiceConfig::restartUnitConfig(boost::asio::yield_context yield) | |
| { | |
| if (!updatedFlag || isMaskedOut()) | |
| { | |
| // No updates. Just return. | |
| return; | |
| } | |
| if (unitRunningState) | |
| { | |
| if (!socketObjectPath.empty()) | |
| { | |
| systemdUnitAction(conn, yield, getSocketUnitName(), | |
| sysdRestartUnit); | |
| } | |
| systemdUnitAction(conn, yield, getServiceUnitName(), sysdRestartUnit); | |
| } | |
| // Reset the flag | |
| updatedFlag = 0; | |
| phosphor::logging::log<phosphor::logging::level::INFO>( | |
| "Applied new settings", | |
| phosphor::logging::entry("OBJPATH=%s", objPath.c_str())); | |
| queryAndUpdateProperties(); | |
| return; | |
| } | |
| void ServiceConfig::startServiceRestartTimer() | |
| { | |
| timer->expires_after(std::chrono::seconds(restartTimeout)); | |
| timer->async_wait([this](const boost::system::error_code& ec) { | |
| if (ec == boost::asio::error::operation_aborted) | |
| { | |
| // Timer reset. | |
| return; | |
| } | |
| else if (ec) | |
| { | |
| phosphor::logging::log<phosphor::logging::level::ERR>( | |
| "async wait error."); | |
| return; | |
| } | |
| updateInProgress = true; | |
| boost::asio::spawn(conn->get_io_context(), | |
| [this](boost::asio::yield_context yield) { | |
| // Stop and apply configuration for all objects | |
| for (auto& srvMgrObj : srvMgrObjects) | |
| { | |
| auto& srvObj = srvMgrObj.second; | |
| if (srvObj->updatedFlag) | |
| { | |
| srvObj->stopAndApplyUnitConfig(yield); | |
| } | |
| } | |
| // Do system reload | |
| systemdDaemonReload(conn, yield); | |
| // restart unit config. | |
| for (auto& srvMgrObj : srvMgrObjects) | |
| { | |
| auto& srvObj = srvMgrObj.second; | |
| if (srvObj->updatedFlag) | |
| { | |
| srvObj->restartUnitConfig(yield); | |
| } | |
| } | |
| updateInProgress = false; | |
| }); | |
| }); | |
| } | |
| void ServiceConfig::registerProperties() | |
| { | |
| iface = server.add_interface(objPath, serviceConfigIntfName); | |
| if (!socketObjectPath.empty()) | |
| { | |
| iface->register_property( | |
| srvCfgPropPort, portNum, | |
| [this](const uint16_t& req, uint16_t& res) { | |
| if (!internalSet) | |
| { | |
| if (req == res) | |
| { | |
| return 1; | |
| } | |
| if (updateInProgress) | |
| { | |
| return 0; | |
| } | |
| portNum = req; | |
| updatedFlag |= | |
| (1 << static_cast<uint8_t>(UpdatedProp::port)); | |
| startServiceRestartTimer(); | |
| } | |
| res = req; | |
| return 1; | |
| }); | |
| } | |
| iface->register_property( | |
| srvCfgPropMasked, unitMaskedState, [this](const bool& req, bool& res) { | |
| if (!internalSet) | |
| { | |
| if (req == res) | |
| { | |
| return 1; | |
| } | |
| if (updateInProgress) | |
| { | |
| return 0; | |
| } | |
| unitMaskedState = req; | |
| unitEnabledState = !unitMaskedState; | |
| unitRunningState = !unitMaskedState; | |
| updatedFlag |= | |
| (1 << static_cast<uint8_t>(UpdatedProp::maskedState)) | | |
| (1 << static_cast<uint8_t>(UpdatedProp::enabledState)) | | |
| (1 << static_cast<uint8_t>(UpdatedProp::runningState)); | |
| internalSet = true; | |
| iface->set_property(srvCfgPropEnabled, unitEnabledState); | |
| iface->set_property(srvCfgPropRunning, unitRunningState); | |
| internalSet = false; | |
| startServiceRestartTimer(); | |
| } | |
| res = req; | |
| return 1; | |
| }); | |
| iface->register_property( | |
| srvCfgPropEnabled, unitEnabledState, | |
| [this](const bool& req, bool& res) { | |
| if (!internalSet) | |
| { | |
| if (req == res) | |
| { | |
| return 1; | |
| } | |
| if (updateInProgress) | |
| { | |
| return 0; | |
| } | |
| if (unitMaskedState) | |
| { // block updating if masked | |
| phosphor::logging::log<phosphor::logging::level::ERR>( | |
| "Invalid value specified"); | |
| return -EINVAL; | |
| } | |
| unitEnabledState = req; | |
| updatedFlag |= | |
| (1 << static_cast<uint8_t>(UpdatedProp::enabledState)); | |
| startServiceRestartTimer(); | |
| } | |
| res = req; | |
| return 1; | |
| }); | |
| iface->register_property( | |
| srvCfgPropRunning, unitRunningState, | |
| [this](const bool& req, bool& res) { | |
| if (!internalSet) | |
| { | |
| if (req == res) | |
| { | |
| return 1; | |
| } | |
| if (updateInProgress) | |
| { | |
| return 0; | |
| } | |
| if (unitMaskedState) | |
| { // block updating if masked | |
| phosphor::logging::log<phosphor::logging::level::ERR>( | |
| "Invalid value specified"); | |
| return -EINVAL; | |
| } | |
| unitRunningState = req; | |
| updatedFlag |= | |
| (1 << static_cast<uint8_t>(UpdatedProp::runningState)); | |
| startServiceRestartTimer(); | |
| } | |
| res = req; | |
| return 1; | |
| }); | |
| iface->initialize(); | |
| return; | |
| } | |
| } // namespace service | |
| } // namespace phosphor |