diff --git a/pus/Service2DeviceAccess.cpp b/pus/Service2DeviceAccess.cpp new file mode 100644 index 00000000..5c6ad506 --- /dev/null +++ b/pus/Service2DeviceAccess.cpp @@ -0,0 +1,178 @@ +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +Service2DeviceAccess::Service2DeviceAccess(object_id_t objectId, + uint16_t apid, uint8_t serviceId, object_id_t tcSource, + object_id_t tmDestination): + CommandingServiceBase(objectId, apid, serviceId, + NUM_OF_PARALLEL_COMMANDS, COMMAND_TIMEOUT_SECONDS, + tcSource, tmDestination) {} + +Service2DeviceAccess::~Service2DeviceAccess() {} + +ReturnValue_t Service2DeviceAccess::isValidSubservice(uint8_t subservice) { + switch(static_cast(subservice)){ + case Subservice::RAW_COMMANDING: + case Subservice::TOGGLE_WIRETAPPING: + return HasReturnvaluesIF::RETURN_OK; + default: + sif::error << "Invalid Subservice" << std::endl; + return AcceptsTelecommandsIF::INVALID_SUBSERVICE; + } +} + +ReturnValue_t Service2DeviceAccess::getMessageQueueAndObject( + uint8_t subservice, const uint8_t* tcData, size_t tcDataLen, + MessageQueueId_t* id, object_id_t* objectId) { + ReturnValue_t result = checkAndAcquireTargetID(objectId,tcData,tcDataLen); + if(result != HasReturnvaluesIF::RETURN_OK) { + return result; + } + + result = checkInterfaceAndAcquireMessageQueue(id,objectId); + return result; + +} + +ReturnValue_t Service2DeviceAccess::checkAndAcquireTargetID( + object_id_t* objectIdToSet, const uint8_t* tcData, size_t tcDataLen) { + if(SerializeAdapter::deSerialize(objectIdToSet, &tcData, + &tcDataLen, SerializeIF::Endianness::BIG) != RETURN_OK) { + sif::error << "Service 2: Target ID not found. ID: " << + std::hex << objectIdToSet ; + return CommandingServiceBase::INVALID_TC; + } + else { + return HasReturnvaluesIF::RETURN_OK; + } +} + +ReturnValue_t Service2DeviceAccess::checkInterfaceAndAcquireMessageQueue( + MessageQueueId_t * messageQueueToSet, object_id_t *objectId) { + DeviceHandlerIF* possibleTarget = + objectManager->get(*objectId); + if(possibleTarget == nullptr) { + return CommandingServiceBase::INVALID_OBJECT; + } + *messageQueueToSet = possibleTarget->getCommandQueue(); + return HasReturnvaluesIF::RETURN_OK; +} + +ReturnValue_t Service2DeviceAccess::prepareCommand(CommandMessage* message, + uint8_t subservice, const uint8_t* tcData, size_t tcDataLen, + uint32_t* state, object_id_t objectId) { + switch(static_cast(subservice)){ + case Subservice::RAW_COMMANDING: { + return prepareRawCommand(dynamic_cast(message), + tcData, tcDataLen); + } + break; + case Subservice::TOGGLE_WIRETAPPING: { + return prepareWiretappingCommand(dynamic_cast(message), + tcData, tcDataLen); + } + break; + default: + return HasReturnvaluesIF::RETURN_FAILED; + } +} + +ReturnValue_t Service2DeviceAccess::prepareRawCommand( + CommandMessage* messageToSet, const uint8_t *tcData,size_t tcDataLen) { + RawCommand RawCommand(tcData,tcDataLen); + // store command into the Inter Process Communication Store + store_address_t storeAddress; + ReturnValue_t result = IPCStore->addData(&storeAddress, + RawCommand.getCommand(), RawCommand.getCommandSize()); + DeviceHandlerMessage::setDeviceHandlerRawCommandMessage(messageToSet, + storeAddress); + return result; +} + +ReturnValue_t Service2DeviceAccess::prepareWiretappingCommand( + CommandMessage *messageToSet, const uint8_t *tcData, + size_t tcDataLen) { + if(tcDataLen != WiretappingToggle::WIRETAPPING_COMMAND_SIZE) { + return CommandingServiceBase::INVALID_TC; + } + WiretappingToggle command; + ReturnValue_t result = command.deSerialize(&tcData, &tcDataLen, + SerializeIF::Endianness::BIG); + DeviceHandlerMessage::setDeviceHandlerWiretappingMessage(messageToSet, + command.getWiretappingMode()); + return result; +} + +ReturnValue_t Service2DeviceAccess::handleReply(const CommandMessage* reply, + Command_t previousCommand, uint32_t* state, + CommandMessage* optionalNextCommand, object_id_t objectId, + bool* isStep) { + switch(reply->getCommand()) { + case CommandMessage::REPLY_COMMAND_OK: + return HasReturnvaluesIF::RETURN_OK; + case CommandMessage::REPLY_REJECTED: + return reply->getReplyRejectedReason(); + default: + return CommandingServiceBase::INVALID_REPLY; + } +} + +// All device handlers set service 2 as default raw receiver for wiretapping +// so we have to handle those unrequested messages. +void Service2DeviceAccess::handleUnrequestedReply(CommandMessage* reply) { + switch(reply->getCommand()) { + case DeviceHandlerMessage::REPLY_RAW_COMMAND: + sendWiretappingTm(reply, + static_cast(Subservice::WIRETAPPING_RAW_TC)); + break; + case DeviceHandlerMessage::REPLY_RAW_REPLY: + sendWiretappingTm(reply, + static_cast(Subservice::RAW_REPLY)); + break; + default: + sif::error << "Unknown message in Service2DeviceAccess::" + "handleUnrequestedReply with command ID " << + reply->getCommand() << std::endl; + break; + } + //Must be reached by all cases to clear message + reply->clear(); +} + +void Service2DeviceAccess::sendWiretappingTm(CommandMessage *reply, + uint8_t subservice) { + // Raw Wiretapping + // Get Address of Data from Message + store_address_t storeAddress = DeviceHandlerMessage::getStoreAddress(reply); + const uint8_t* data = nullptr; + size_t size = 0; + ReturnValue_t result = IPCStore->getData(storeAddress,&data,&size); + if(result != HasReturnvaluesIF::RETURN_OK){ + sif::error << "Service2DeviceAccess::sendWiretappingTm: Data Lost in " + "handleUnrequestedReply with failure ID "<< result + << std::endl; + return; + } + + // Init our dummy packet and correct endianness of object ID before + // sending it back. + WiretappingPacket TmPacket(DeviceHandlerMessage::getDeviceObjectId(reply), + data); + TmPacket.objectId = EndianConverter::convertBigEndian(TmPacket.objectId); + sendTmPacket(subservice,TmPacket.data,size,reinterpret_cast( + &TmPacket.objectId),sizeof(TmPacket.objectId)); +} + +MessageQueueId_t Service2DeviceAccess::getDeviceQueue() { + return commandQueue->getId(); +} + diff --git a/pus/Service2DeviceAccess.h b/pus/Service2DeviceAccess.h new file mode 100644 index 00000000..ecab6101 --- /dev/null +++ b/pus/Service2DeviceAccess.h @@ -0,0 +1,96 @@ +#ifndef FRAMEWORK_PUS_SERVICE2DEVICEACCESS_H_ +#define FRAMEWORK_PUS_SERVICE2DEVICEACCESS_H_ + +#include +#include +#include + +/** + * @brief Raw Commanding and Wiretapping of devices. + * @details + * Full Documentation: ECSS-E-ST-70-41C or ECSS-E-70-41A + * Dissertation Baetz p. 115, 116, 165-167. + * + * This service provides the capability to communicate with devices in their + * native protocols with raw commands through the DeviceHandlerIF. + * + * This is a gateway service. It relays device commands using the software bus. + * This service is very closely tied to the Commanding Service Base + * template class. There is constant interaction between this Service Base und + * a Subclass like this service + * There are 4 adaption points for component implementation through the + * Commanding Service Base. + * + * This service employs custom subservices exclusively. This includes a + * wiretapping subservice to monitor all traffic between target devices and + * this service. + * + * - TC[2,128]: Raw Commanding + * - TC[2,129]: Toggle Wiretapping + * - TM[2,130]: Wiretapping Packet TM + * - TM[2,131]: Wiretapping Packet TC + * @ingroup pus_services + */ +class Service2DeviceAccess : public CommandingServiceBase, + public AcceptsDeviceResponsesIF +{ +public: + Service2DeviceAccess(object_id_t objectId, uint16_t apid, + uint8_t serviceId, object_id_t tcSource, + object_id_t tmDestination); + virtual ~Service2DeviceAccess(); + + static constexpr uint8_t NUM_OF_PARALLEL_COMMANDS = 4; + static constexpr uint16_t COMMAND_TIMEOUT_SECONDS = 60; +protected: + //! CommandingServiceBase (CSB) abstract functions. See CSB documentation. + ReturnValue_t isValidSubservice(uint8_t subservice) override; + ReturnValue_t getMessageQueueAndObject(uint8_t subservice, + const uint8_t *tcData, size_t tcDataLen, MessageQueueId_t *id, + object_id_t *objectId) override; + ReturnValue_t prepareCommand(CommandMessage* message, uint8_t subservice, + const uint8_t *tcData, size_t tcDataLen, uint32_t *state, + object_id_t objectId) override; + ReturnValue_t handleReply(const CommandMessage* reply, + Command_t previousCommand, uint32_t *state, + CommandMessage* optionalNextCommand, object_id_t objectId, + bool *isStep) override; + + /** + * @brief Generates TM packets containing either the TC wiretapping + * packets or the TM wiretapping packets. + * Note that for service 2, all telemetry will be treated as an + * unrequested reply regardless of wiretapping mode. + * @param reply + */ + void handleUnrequestedReply(CommandMessage* reply) override; + + MessageQueueId_t getDeviceQueue() override; +private: + /** + * Generates TM packets for Wiretapping Service + * @param reply + * @param subservice + */ + void sendWiretappingTm(CommandMessage* reply,uint8_t subservice); + + ReturnValue_t checkAndAcquireTargetID(object_id_t* objectIdToSet, + const uint8_t* tcData, size_t tcDataLen); + ReturnValue_t checkInterfaceAndAcquireMessageQueue( + MessageQueueId_t* messageQueueToSet, object_id_t* objectId); + + ReturnValue_t prepareRawCommand(CommandMessage* messageToSet, + const uint8_t* tcData, size_t tcDataLen); + ReturnValue_t prepareWiretappingCommand(CommandMessage* messageToSet, + const uint8_t* tcData, size_t tcDataLen); + + enum class Subservice { + RAW_COMMANDING = 128, //!< [EXPORT] : [COMMAND] Command in device native protocol + TOGGLE_WIRETAPPING = 129, //!< [EXPORT] : [COMMAND] Toggle wiretapping of raw communication + RAW_REPLY = 130, //!< [EXPORT] : [REPLY] Includes wiretapping TM and normal TM raw replies from device + WIRETAPPING_RAW_TC = 131 //!< [EXPORT] : [REPLY] Wiretapping packets of commands built by device handler + }; +}; + + +#endif /* MISSION_PUS_DEVICE2DEVICECOMMANDING_H_ */ diff --git a/pus/servicepackets/Service2Packets.h b/pus/servicepackets/Service2Packets.h new file mode 100644 index 00000000..f292611e --- /dev/null +++ b/pus/servicepackets/Service2Packets.h @@ -0,0 +1,76 @@ +#ifndef FRAMEWORK_PUS_SERVICEPACKETS_SERVICE2PACKETS_H_ +#define FRAMEWORK_PUS_SERVICEPACKETS_SERVICE2PACKETS_H_ + +#include +#include +#include +#include + +/** + * @brief Subservice 128 + * @ingroup spacepackets + */ +class RawCommand { //!< [EXPORT] : [SUBSERVICE] 128 +public: + RawCommand(const uint8_t* buffer, size_t size) { + // Deserialize Adapter to get correct endianness + SerializeAdapter::deSerialize(&objectId, &buffer, &size, + SerializeIF::Endianness::BIG); + commandBuffer = buffer; + // size is decremented by AutoSerializeAdapter, + // remaining size is data size + dataSize = size; + } + object_id_t getObjectId() const { + return objectId; + } + + const uint8_t* getCommand() { + return commandBuffer; + } + + size_t getCommandSize() const { + return dataSize; + } +private: + object_id_t objectId = 0; + const uint8_t* commandBuffer = nullptr; //!< [EXPORT] : [MAXSIZE] 256 Bytes + size_t dataSize = 0; //!< [EXPORT] : [IGNORE] +}; + + +/** + * @brief Subservice 129: Command packet to set wiretapping mode + * @ingroup spacepackets + */ +class WiretappingToggle: public SerialLinkedListAdapter{ //!< [EXPORT] : [SUBSERVICE] 129 +public: + static const size_t WIRETAPPING_COMMAND_SIZE = 5; + WiretappingToggle(){ + setStart(&objectId); + objectId.setNext(&wiretappingMode); + } + + uint8_t getWiretappingMode() const { + return wiretappingMode.entry; + } +private: + SerializeElement objectId; + SerializeElement wiretappingMode; //!< [EXPORT] : [INPUT] Mode 0: OFF, Mode 1: RAW +}; + + +/** + * @brief Subservices 130 and 131: TM packets + * @ingroup spacepackets + */ +class WiretappingPacket { //!< [EXPORT] : [SUBSERVICE] 130, 131 +public: + object_id_t objectId; //!< [EXPORT] : [COMMENT] Object ID of source object + const uint8_t* data; //!< [EXPORT] : [MAXSIZE] Raw Command Max. Size + WiretappingPacket(object_id_t objectId, const uint8_t* buffer): + objectId(objectId), data(buffer) { + } +}; + +#endif /* FRAMEWORK_PUS_SERVICEPACKETS_SERVICE2PACKETS_H_ */ diff --git a/pus/servicepackets/Service5Packets.h b/pus/servicepackets/Service5Packets.h index f8f730c3..14219c93 100644 --- a/pus/servicepackets/Service5Packets.h +++ b/pus/servicepackets/Service5Packets.h @@ -1,17 +1,3 @@ -/** - * \file Service5Packets.h - * - * Structure of Event Report. - * It consists of: - * 1. Report ID(RID). This is the Event ID in the FSFW - * 2. Object ID of the reporter (e.g. subsystem) - * 2. Parameter 1 - * 3. Parameter 2 - * - * Created on: 21.05.2019 - * Author: R. Mueller, J. Meier - */ - #ifndef MISSION_PUS_SERVICEPACKETS_SERVICE5PACKETS_H_ #define MISSION_PUS_SERVICEPACKETS_SERVICE5PACKETS_H_ @@ -20,8 +6,15 @@ /** - * \brief Subservice 1, 2, 3, 4 - * \ingroup spacepackets + * @brief Subservice 1, 2, 3, 4 + * Structure of Event Report. + * It consists of: + * 1. Report ID(RID). This is the Event ID in the FSFW + * 2. Object ID of the reporter (e.g. subsystem) + * 2. Parameter 1 + * 3. Parameter 2 + * + * @ingroup spacepackets */ class EventReport: public SerializeIF { //!< [EXPORT] : [SUBSERVICE] 1, 2, 3, 4 public: