Possible bugfix in DHB

The delayCycles variables needs to be initialized differently
for periodic replies.
It is initialized to the maxDelayCycles value now

hal/src/fsfw_hal/linux/spi/SpiComIF.cpp

@@ -15,11 +15,6 @@
 #include <cerrno>
 #include <cstring>
 
-/* Can be used for low-level debugging of the SPI bus */
-#ifndef FSFW_HAL_LINUX_SPI_WIRETAPPING
-#define FSFW_HAL_LINUX_SPI_WIRETAPPING                  0
-#endif
-
 SpiComIF::SpiComIF(object_id_t objectId, GpioIF* gpioComIF):
         SystemObject(objectId), gpioComIF(gpioComIF) {
     if(gpioComIF == nullptr) {
@@ -90,7 +85,7 @@ ReturnValue_t SpiComIF::initializeInterface(CookieIF *cookie) {
 
     int fileDescriptor = 0;
     UnixFileGuard fileHelper(spiCookie->getSpiDevice(), &fileDescriptor, O_RDWR,
-            "SpiComIF::initializeInterface: ");
+            "SpiComIF::initializeInterface");
     if(fileHelper.getOpenResult() != HasReturnvaluesIF::RETURN_OK) {
         return fileHelper.getOpenResult();
     }

hal/src/fsfw_hal/linux/spi/SpiComIF.h

@@ -1,6 +1,7 @@
 #ifndef LINUX_SPI_SPICOMIF_H_
 #define LINUX_SPI_SPICOMIF_H_
 
+#include "fsfw/FSFW.h"
 #include "spiDefinitions.h"
 #include "returnvalues/classIds.h"
 #include "fsfw_hal/common/gpio/GpioIF.h"

hal/src/fsfw_hal/linux/uart/UartComIF.cpp

@@ -1,6 +1,7 @@
-#include "fsfw_hal/linux/uart/UartComIF.h"
+#include "UartComIF.h"
 #include "OBSWConfig.h"
 
+#include "fsfw_hal/linux/utility.h"
 #include "fsfw/serviceinterface/ServiceInterface.h"
 
 #include <cstring>
@@ -60,7 +61,13 @@ int UartComIF::configureUartPort(UartCookie* uartCookie) {
     struct termios options = {};
 
     std::string deviceFile = uartCookie->getDeviceFile();
-    int fd = open(deviceFile.c_str(), O_RDWR);
+    int flags = O_RDWR;
+    if(uartCookie->getUartMode() == UartModes::CANONICAL) {
+        // In non-canonical mode, don't specify O_NONBLOCK because these properties will be
+        // controlled by the VTIME and VMIN parameters and O_NONBLOCK would override this
+        flags |= O_NONBLOCK;
+    }
+    int fd = open(deviceFile.c_str(), flags);
 
     if (fd < 0) {
         sif::warning << "UartComIF::configureUartPort: Failed to open uart " << deviceFile <<
@@ -347,12 +354,13 @@ ReturnValue_t UartComIF::handleCanonicalRead(UartCookie& uartCookie, UartDeviceM
     size_t maxReplySize = uartCookie.getMaxReplyLen();
     int fd = iter->second.fileDescriptor;
     auto bufferPtr = iter->second.replyBuffer.data();
+    iter->second.replyLen = 0;
     do {
         size_t allowedReadSize = 0;
         if(currentBytesRead >= maxReplySize) {
             // Overflow risk. Emit warning, trigger event and break. If this happens,
             // the reception buffer is not large enough or data is not polled often enough.
-#if OBSW_VERBOSE_LEVEL >= 1
+#if FSFW_VERBOSE_LEVEL >= 1
 #if FSFW_CPP_OSTREAM_ENABLED == 1
             sif::warning << "UartComIF::requestReceiveMessage: Next read would cause overflow!"
                     << std::endl;
@@ -370,7 +378,20 @@ ReturnValue_t UartComIF::handleCanonicalRead(UartCookie& uartCookie, UartDeviceM
 
         bytesRead = read(fd, bufferPtr, allowedReadSize);
         if (bytesRead < 0) {
-            return RETURN_FAILED;
+            // EAGAIN: No data available in non-blocking mode
+            if(errno != EAGAIN) {
+#if FSFW_VERBOSE_LEVEL >= 1
+#if FSFW_CPP_OSTREAM_ENABLED == 1
+                sif::warning << "UartComIF::handleCanonicalRead: read failed with code" <<
+                        errno << ": " << strerror(errno) << std::endl;
+#else
+                sif::printWarning("UartComIF::handleCanonicalRead: read failed with code %d: %s\n",
+                        errno, strerror(errno));
+#endif
+#endif
+                return RETURN_FAILED;
+            }
+
         }
         else if(bytesRead > 0) {
             iter->second.replyLen += bytesRead;

src/fsfw/FSFW.h.in

@@ -11,6 +11,15 @@
 #cmakedefine FSFW_ADD_MONITORING
 #cmakedefine FSFW_ADD_SGP4_PROPAGATOR
 
+#ifndef FSFW_TCP_RECV_WIRETAPPING_ENABLED
+#define FSFW_TCP_RECV_WIRETAPPING_ENABLED 0
+#endif
+
+/* Can be used for low-level debugging of the SPI bus */
+#ifndef FSFW_HAL_LINUX_SPI_WIRETAPPING
+#define FSFW_HAL_LINUX_SPI_WIRETAPPING 0
+#endif
+
 #ifndef FSFW_HAL_L3GD20_GYRO_DEBUG
 #define FSFW_HAL_L3GD20_GYRO_DEBUG   0
 #endif /* FSFW_HAL_L3GD20_GYRO_DEBUG */

src/fsfw/FSFWVersion.h

@@ -1,12 +1,10 @@
-#ifndef FSFW_DEFAULTCFG_VERSION_H_
-#define FSFW_DEFAULTCFG_VERSION_H_
+#ifndef FSFW_VERSION_H_
+#define FSFW_VERSION_H_
 
 const char* const FSFW_VERSION_NAME = "ASTP";
 
 #define FSFW_VERSION        1
-#define	FSFW_SUBVERSION     0
+#define	FSFW_SUBVERSION     3
 #define	FSFW_REVISION       0
 
-
-
-#endif /* FSFW_DEFAULTCFG_VERSION_H_ */
+#endif /* FSFW_VERSION_H_ */

src/fsfw/devicehandlers/DeviceHandlerBase.cpp

@@ -430,7 +430,12 @@ ReturnValue_t DeviceHandlerBase::insertInReplyMap(DeviceCommandId_t replyId,
     DeviceReplyInfo info;
     info.maxDelayCycles = maxDelayCycles;
     info.periodic = periodic;
-    info.delayCycles = 0;
+    if(info.periodic) {
+        info.delayCycles = info.maxDelayCycles;
+    }
+    else {
+        info.delayCycles = 0;
+    }
     info.replyLen = replyLen;
     info.dataSet = dataSet;
     info.command = deviceCommandMap.end();
@@ -1336,10 +1341,20 @@ void DeviceHandlerBase::buildInternalCommand(void) {
         DeviceCommandMap::iterator iter = deviceCommandMap.find(
                 deviceCommandId);
         if (iter == deviceCommandMap.end()) {
+#if FSFW_VERBOSE_LEVEL >= 1
+            char output[36];
+            sprintf(output, "Command 0x%08x unknown",
+                    static_cast<unsigned int>(deviceCommandId));
+            // so we can track misconfigurations
+            printWarningOrError(sif::OutputTypes::OUT_WARNING,
+                    "buildInternalCommand",
+                    COMMAND_NOT_SUPPORTED,
+                    output);
+#endif
             result = COMMAND_NOT_SUPPORTED;
         }
         else if (iter->second.isExecuting) {
-#if FSFW_DISABLE_PRINTOUT == 0
+#if FSFW_VERBOSE_LEVEL >= 1
             char output[36];
             sprintf(output, "Command 0x%08x is executing",
                     static_cast<unsigned int>(deviceCommandId));

src/fsfw/memory/HasFileSystemIF.h

@@ -81,7 +81,7 @@ public:
 	 * @param args Any other arguments which an implementation might require
 	 * @return
 	 */
-	virtual ReturnValue_t deleteFile(const char* repositoryPath,
+	virtual ReturnValue_t removeFile(const char* repositoryPath,
 	        const char* filename, void* args = nullptr) = 0;
 
 	/**

src/fsfw/osal/common/TcpTmTcBridge.cpp

@@ -1,6 +1,5 @@
 #include "fsfw/platform.h"
 #include "fsfw/osal/common/TcpTmTcBridge.h"
-#include "fsfw/osal/common/tcpipHelpers.h"
 
 #include "fsfw/serviceinterface/ServiceInterface.h"
 #include "fsfw/ipc/MutexGuard.h"
@@ -17,8 +16,6 @@
 
 #endif
 
-const std::string TcpTmTcBridge::DEFAULT_UDP_SERVER_PORT =  tcpip::DEFAULT_SERVER_PORT;
-
 TcpTmTcBridge::TcpTmTcBridge(object_id_t objectId, object_id_t tcDestination,
         object_id_t tmStoreId, object_id_t tcStoreId):
         TmTcBridge(objectId, tcDestination, tmStoreId, tcStoreId) {

src/fsfw/osal/common/TcpTmTcBridge.h

@@ -2,7 +2,7 @@
 #define FSFW_OSAL_COMMON_TCPTMTCBRIDGE_H_
 
 #include "TcpIpBase.h"
-#include "../../tmtcservices/TmTcBridge.h"
+#include "fsfw/tmtcservices/TmTcBridge.h"
 
 #ifdef _WIN32
 
@@ -29,8 +29,6 @@ class TcpTmTcBridge:
         public TmTcBridge {
     friend class TcpTmTcServer;
 public:
-    /* The ports chosen here should not be used by any other process. */
-    static const std::string DEFAULT_UDP_SERVER_PORT;
 
     /**
      * Constructor

src/fsfw/osal/common/TcpTmTcServer.cpp

@@ -1,8 +1,10 @@
-#include "fsfw/osal/common/TcpTmTcServer.h"
-#include "fsfw/osal/common/TcpTmTcBridge.h"
-#include "fsfw/osal/common/tcpipHelpers.h"
-
 #include "fsfw/platform.h"
+#include "fsfw/FSFW.h"
+
+#include "TcpTmTcServer.h"
+#include "TcpTmTcBridge.h"
+#include "tcpipHelpers.h"
+
 #include "fsfw/container/SharedRingBuffer.h"
 #include "fsfw/ipc/MessageQueueSenderIF.h"
 #include "fsfw/ipc/MutexGuard.h"
@@ -18,18 +20,14 @@
 #include <netdb.h>
 #endif
 
-#ifndef FSFW_TCP_RECV_WIRETAPPING_ENABLED
-#define FSFW_TCP_RECV_WIRETAPPING_ENABLED 0
-#endif
-
-const std::string TcpTmTcServer::DEFAULT_TCP_SERVER_PORT =  "7303";
+const std::string TcpTmTcServer::DEFAULT_SERVER_PORT = tcpip::DEFAULT_SERVER_PORT;
 
 TcpTmTcServer::TcpTmTcServer(object_id_t objectId, object_id_t tmtcTcpBridge,
         size_t receptionBufferSize, std::string customTcpServerPort):
         SystemObject(objectId), tmtcBridgeId(tmtcTcpBridge),
         tcpPort(customTcpServerPort), receptionBuffer(receptionBufferSize) {
     if(tcpPort == "") {
-        tcpPort = DEFAULT_TCP_SERVER_PORT;
+        tcpPort = DEFAULT_SERVER_PORT;
     }
 }
 
@@ -200,6 +198,10 @@ void TcpTmTcServer::setTcpBacklog(uint8_t tcpBacklog) {
     this->tcpBacklog = tcpBacklog;
 }
 
+std::string TcpTmTcServer::getTcpPort() const {
+    return tcpPort;
+}
+
 ReturnValue_t TcpTmTcServer::handleTmSending(socket_t connSocket) {
     // Access to the FIFO is mutex protected because it is filled by the bridge
     MutexGuard(tmtcBridge->mutex, tmtcBridge->timeoutType, tmtcBridge->mutexTimeoutMs);

src/fsfw/osal/common/TcpTmTcServer.h

@@ -3,13 +3,14 @@
 
 #include "TcpIpBase.h"
 
-#include "../../platform.h"
-#include "../../ipc/messageQueueDefinitions.h"
-#include "../../ipc/MessageQueueIF.h"
-#include "../../objectmanager/frameworkObjects.h"
-#include "../../objectmanager/SystemObject.h"
-#include "../../storagemanager/StorageManagerIF.h"
-#include "../../tasks/ExecutableObjectIF.h"
+#include "fsfw/platform.h"
+#include "fsfw/osal/common/tcpipHelpers.h"
+#include "fsfw/ipc/messageQueueDefinitions.h"
+#include "fsfw/ipc/MessageQueueIF.h"
+#include "fsfw/objectmanager/frameworkObjects.h"
+#include "fsfw/objectmanager/SystemObject.h"
+#include "fsfw/storagemanager/StorageManagerIF.h"
+#include "fsfw/tasks/ExecutableObjectIF.h"
 
 #ifdef PLATFORM_UNIX
 #include <sys/socket.h>
@@ -41,10 +42,9 @@ class TcpTmTcServer:
         public TcpIpBase,
         public ExecutableObjectIF {
 public:
-    /* The ports chosen here should not be used by any other process. */
-    static const std::string DEFAULT_TCP_SERVER_PORT;
+    static const std::string DEFAULT_SERVER_PORT;
 
-    static constexpr  size_t ETHERNET_MTU_SIZE = 1500;
+    static constexpr size_t ETHERNET_MTU_SIZE = 1500;
 
     /**
      * TCP Server Constructor
@@ -65,6 +65,8 @@ public:
     ReturnValue_t performOperation(uint8_t opCode) override;
     ReturnValue_t initializeAfterTaskCreation() override;
 
+    std::string getTcpPort() const;
+
 protected:
     StorageManagerIF* tcStore = nullptr;
     StorageManagerIF* tmStore = nullptr;

src/fsfw/osal/common/UdpTmTcBridge.cpp

@@ -17,13 +17,13 @@
 #define FSFW_UDP_SEND_WIRETAPPING_ENABLED    0
 #endif
 
-const std::string UdpTmTcBridge::DEFAULT_UDP_SERVER_PORT =  tcpip::DEFAULT_SERVER_PORT;
+const std::string UdpTmTcBridge::DEFAULT_SERVER_PORT =  tcpip::DEFAULT_SERVER_PORT;
 
 UdpTmTcBridge::UdpTmTcBridge(object_id_t objectId, object_id_t tcDestination,
         std::string udpServerPort, object_id_t tmStoreId, object_id_t tcStoreId):
         TmTcBridge(objectId, tcDestination, tmStoreId, tcStoreId) {
     if(udpServerPort == "") {
-        this->udpServerPort = DEFAULT_UDP_SERVER_PORT;
+        this->udpServerPort = DEFAULT_SERVER_PORT;
     }
     else {
         this->udpServerPort = udpServerPort;
@@ -108,6 +108,10 @@ UdpTmTcBridge::~UdpTmTcBridge() {
     }
 }
 
+std::string UdpTmTcBridge::getUdpPort() const {
+    return udpServerPort;
+}
+
 ReturnValue_t UdpTmTcBridge::sendTm(const uint8_t *data, size_t dataLen) {
     int flags = 0;
 

src/fsfw/osal/common/UdpTmTcBridge.h

@@ -2,8 +2,8 @@
 #define FSFW_OSAL_COMMON_TMTCUDPBRIDGE_H_
 
 #include "TcpIpBase.h"
-#include "../../platform.h"
-#include "../../tmtcservices/TmTcBridge.h"
+#include "fsfw/platform.h"
+#include "fsfw/tmtcservices/TmTcBridge.h"
 
 #ifdef PLATFORM_WIN
 #include <ws2tcpip.h>
@@ -28,7 +28,7 @@ class UdpTmTcBridge:
     friend class UdpTcPollingTask;
 public:
     /* The ports chosen here should not be used by any other process. */
-    static const std::string DEFAULT_UDP_SERVER_PORT;
+    static const std::string DEFAULT_SERVER_PORT;
 
     UdpTmTcBridge(object_id_t objectId, object_id_t tcDestination,
             std::string udpServerPort = "", object_id_t tmStoreId = objects::TM_STORE,
@@ -44,6 +44,8 @@ public:
 
     void checkAndSetClientAddress(sockaddr& clientAddress);
 
+    std::string getUdpPort() const;
+
 protected:
     virtual ReturnValue_t sendTm(const uint8_t * data, size_t dataLen) override;
 

src/fsfw/osal/common/tcpipCommon.h

@@ -1,7 +1,7 @@
 #ifndef FSFW_OSAL_COMMON_TCPIPCOMMON_H_
 #define FSFW_OSAL_COMMON_TCPIPCOMMON_H_
 
-#include "../../timemanager/clockDefinitions.h"
+#include "fsfw/timemanager/clockDefinitions.h"
 #include <string>
 
 #ifdef _WIN32
@@ -13,7 +13,7 @@
 
 namespace tcpip {
 
-const char* const DEFAULT_SERVER_PORT = "7301";
+static constexpr char DEFAULT_SERVER_PORT[] = "7301";
 
 enum class Protocol {
     UDP,

src/fsfw/osal/linux/CMakeLists.txt

@@ -16,6 +16,7 @@ target_sources(${LIB_FSFW_NAME}
 		Timer.cpp
 		tcpipHelpers.cpp
 		unixUtility.cpp
+		CommandExecutor.cpp
 )
 
 find_package(Threads REQUIRED)

src/fsfw/osal/linux/CommandExecutor.cpp

@@ -0,0 +1,185 @@
+#include "CommandExecutor.h"
+
+#include "fsfw/serviceinterface.h"
+#include "fsfw/container/SimpleRingBuffer.h"
+#include "fsfw/container/DynamicFIFO.h"
+
+#include <unistd.h>
+
+#include <cstring>
+
+CommandExecutor::CommandExecutor(const size_t maxSize):
+readVec(maxSize) {
+    waiter.events = POLLIN;
+}
+
+ReturnValue_t CommandExecutor::load(std::string command, bool blocking, bool printOutput) {
+    if(state == States::PENDING) {
+        return COMMAND_PENDING;
+    }
+
+    currentCmd = command;
+    this->blocking = blocking;
+    this->printOutput = printOutput;
+    if(state == States::IDLE) {
+        state = States::COMMAND_LOADED;
+    }
+    return HasReturnvaluesIF::RETURN_OK;
+}
+
+ReturnValue_t CommandExecutor::execute() {
+    if(state == States::IDLE) {
+        return NO_COMMAND_LOADED_OR_PENDING;
+    }
+    else if(state == States::PENDING) {
+        return COMMAND_PENDING;
+    }
+    currentCmdFile = popen(currentCmd.c_str(), "r");
+    if(currentCmdFile == nullptr) {
+        lastError = errno;
+        return HasReturnvaluesIF::RETURN_FAILED;
+    }
+    if(blocking) {
+        return executeBlocking();
+    }
+    else {
+        currentFd = fileno(currentCmdFile);
+        waiter.fd = currentFd;
+    }
+    state = States::PENDING;
+    return HasReturnvaluesIF::RETURN_OK;
+}
+
+ReturnValue_t CommandExecutor::close() {
+    if(state == States::PENDING) {
+        // Attempt to close process, irrespective of if it is running or not
+        if(currentCmdFile != nullptr) {
+            pclose(currentCmdFile);
+        }
+    }
+    return HasReturnvaluesIF::RETURN_OK;
+}
+
+void CommandExecutor::printLastError(std::string funcName) const {
+    if(lastError != 0) {
+        sif::error << funcName << " pclose failed with code " <<
+                lastError << ": " << strerror(lastError) << std::endl;
+    }
+}
+
+void CommandExecutor::setRingBuffer(SimpleRingBuffer *ringBuffer,
+        DynamicFIFO<uint16_t>* sizesFifo) {
+    this->ringBuffer = ringBuffer;
+    this->sizesFifo = sizesFifo;
+}
+
+ReturnValue_t CommandExecutor::check(bool& bytesRead) {
+    if(blocking) {
+        return HasReturnvaluesIF::RETURN_OK;
+    }
+    switch(state) {
+    case(States::IDLE):
+    case(States::COMMAND_LOADED): {
+        return NO_COMMAND_LOADED_OR_PENDING;
+    }
+    case(States::PENDING): {
+        break;
+    }
+    }
+
+    int result = poll(&waiter, 1, 0);
+    switch(result) {
+    case(0): {
+        return HasReturnvaluesIF::RETURN_OK;
+        break;
+    }
+    case(1): {
+        if (waiter.revents & POLLIN) {
+            ssize_t readBytes = read(currentFd, readVec.data(), readVec.size());
+            if(readBytes == 0) {
+                // Should not happen
+                sif::warning << "CommandExecutor::check: "
+                        "No bytes read after poll event.." << std::endl;
+                break;
+            }
+            else if(readBytes > 0) {
+                bytesRead = true;
+                if(printOutput) {
+                    // It is assumed the command output is line terminated
+                    sif::info << currentCmd << " | " << readVec.data();
+                }
+                if(ringBuffer != nullptr) {
+                    ringBuffer->writeData(reinterpret_cast<const uint8_t*>(
+                            readVec.data()), readBytes);
+                }
+                if(sizesFifo != nullptr) {
+                    if(not sizesFifo->full()) {
+                        sizesFifo->insert(readBytes);
+                    }
+                }
+                return BYTES_READ;
+            }
+            else {
+                // Should also not happen
+                sif::warning << "CommandExecutor::check: Error " << errno << ": " <<
+                        strerror(errno) << std::endl;
+            }
+        }
+        else if(waiter.revents & POLLERR) {
+            sif::warning << "CommandExecuter::check: Poll error" << std::endl;
+            return COMMAND_ERROR;
+        }
+        else if(waiter.revents & POLLHUP) {
+            int result = pclose(currentCmdFile);
+            if(result != 0) {
+                lastError = result;
+                return HasReturnvaluesIF::RETURN_FAILED;
+            }
+            state = States::IDLE;
+            currentCmdFile = nullptr;
+            currentFd = 0;
+            return EXECUTION_FINISHED;
+        }
+        break;
+    }
+    }
+    return HasReturnvaluesIF::RETURN_OK;
+}
+
+void CommandExecutor::reset() {
+    CommandExecutor::close();
+    currentCmdFile = nullptr;
+    currentFd = 0;
+    state = States::IDLE;
+}
+
+int CommandExecutor::getLastError() const {
+    return this->lastError;
+}
+
+CommandExecutor::States CommandExecutor::getCurrentState() const {
+    return state;
+}
+
+ReturnValue_t CommandExecutor::executeBlocking() {
+    while(fgets(readVec.data(), readVec.size(), currentCmdFile) != nullptr) {
+        std::string output(readVec.data());
+        if(printOutput) {
+            sif::info << currentCmd << " | " << output;
+        }
+        if(ringBuffer != nullptr) {
+            ringBuffer->writeData(reinterpret_cast<const uint8_t*>(output.data()), output.size());
+        }
+        if(sizesFifo != nullptr) {
+            if(not sizesFifo->full()) {
+                sizesFifo->insert(output.size());
+            }
+        }
+    }
+    int result = pclose(currentCmdFile);
+    if(result != 0) {
+        lastError = result;
+        return HasReturnvaluesIF::RETURN_FAILED;
+    }
+    return HasReturnvaluesIF::RETURN_OK;
+}

src/fsfw/osal/linux/CommandExecutor.h

@@ -0,0 +1,134 @@
+#ifndef FSFW_SRC_FSFW_OSAL_LINUX_COMMANDEXECUTOR_H_
+#define FSFW_SRC_FSFW_OSAL_LINUX_COMMANDEXECUTOR_H_
+
+#include "fsfw/returnvalues/HasReturnvaluesIF.h"
+#include "fsfw/returnvalues/FwClassIds.h"
+
+#include <poll.h>
+
+#include <string>
+#include <vector>
+
+class SimpleRingBuffer;
+template <typename T> class DynamicFIFO;
+
+/**
+ * @brief   Helper class to execute shell commands in blocking and non-blocking mode
+ * @details
+ * This class is able to execute processes by using the Linux popen call. It also has the
+ * capability of writing the read output of a process into a provided ring buffer.
+ *
+ * The executor works by first loading the command which should be executed and specifying
+ * whether it should be executed blocking or non-blocking. After that, execution can be started
+ * with the execute command. In blocking mode, the execute command will block until the command
+ * has finished
+ */
+class CommandExecutor {
+public:
+    enum class States {
+        IDLE,
+        COMMAND_LOADED,
+        PENDING
+    };
+
+    static constexpr uint8_t CLASS_ID = CLASS_ID::LINUX_OSAL;
+
+    //! [EXPORT] : [COMMENT] Execution of the current command has finished
+    static constexpr ReturnValue_t EXECUTION_FINISHED =
+            HasReturnvaluesIF::makeReturnCode(CLASS_ID, 0);
+
+    //! [EXPORT] : [COMMENT] Command is pending. This will also be returned if the user tries
+    //! to load another command but a command is still pending
+    static constexpr ReturnValue_t COMMAND_PENDING =
+            HasReturnvaluesIF::makeReturnCode(CLASS_ID, 1);
+    //! [EXPORT] : [COMMENT] Some bytes have been read from the executing process
+    static constexpr ReturnValue_t BYTES_READ =
+            HasReturnvaluesIF::makeReturnCode(CLASS_ID, 2);
+    //! [EXPORT] : [COMMENT] Command execution failed
+    static constexpr ReturnValue_t COMMAND_ERROR =
+            HasReturnvaluesIF::makeReturnCode(CLASS_ID, 3);
+    //! [EXPORT] : [COMMENT]
+    static constexpr ReturnValue_t NO_COMMAND_LOADED_OR_PENDING =
+            HasReturnvaluesIF::makeReturnCode(CLASS_ID, 4);
+    static constexpr ReturnValue_t PCLOSE_CALL_ERROR =
+            HasReturnvaluesIF::makeReturnCode(CLASS_ID, 6);
+
+    /**
+     * Constructor. Is initialized with maximum size of internal buffer to read data from the
+     * executed process.
+     * @param maxSize
+     */
+    CommandExecutor(const size_t maxSize);
+
+    /**
+     * Load a new command which should be executed
+     * @param command
+     * @param blocking
+     * @param printOutput
+     * @return
+     */
+    ReturnValue_t load(std::string command, bool blocking, bool printOutput = true);
+    /**
+     * Execute the loaded command.
+     * @return
+     *  - In blocking mode, it will return RETURN_FAILED if
+     *    the result of the system call was not 0. The error value can be accessed using
+     *    getLastError
+     *  - In non-blocking mode, this call will start
+     *    the execution and then return RETURN_OK
+     */
+    ReturnValue_t execute();
+    /**
+     * Only used in non-blocking mode. Checks the currently running command.
+     * @param bytesRead Will be set to the number of bytes read, if bytes have been read
+     * @return
+     *  - BYTES_READ if bytes have been read from the executing process. It is recommended to call
+     *    check again after this
+     *  - RETURN_OK execution is pending, but no bytes have been read from the executing process
+     *  - RETURN_FAILED if execution has failed, error value can be accessed using getLastError
+     *  - EXECUTION_FINISHED if the process was executed successfully
+     *  - COMMAND_ERROR internal poll error
+     */
+    ReturnValue_t check(bool& bytesRead);
+    /**
+     * Abort the current command. Should normally not be necessary, check can be used to find
+     * out whether command execution was successful
+     * @return RETURN_OK
+     */
+    ReturnValue_t close();
+
+    States getCurrentState() const;
+    int getLastError() const;
+    void printLastError(std::string funcName) const;
+
+    /**
+     * Assign a ring buffer and a FIFO which will be filled by the executor with the output
+     * read from the started process
+     * @param ringBuffer
+     * @param sizesFifo
+     */
+    void setRingBuffer(SimpleRingBuffer* ringBuffer, DynamicFIFO<uint16_t>* sizesFifo);
+
+    /**
+     * Reset the executor. This calls close internally and then reset the state machine so new
+     * commands can be loaded and executed
+     */
+    void reset();
+private:
+    std::string currentCmd;
+    bool blocking = true;
+    FILE* currentCmdFile = nullptr;
+    int currentFd = 0;
+    bool printOutput = true;
+    std::vector<char> readVec;
+    struct pollfd waiter {};
+    SimpleRingBuffer* ringBuffer = nullptr;
+    DynamicFIFO<uint16_t>* sizesFifo = nullptr;
+
+    States state = States::IDLE;
+    int lastError = 0;
+
+    ReturnValue_t executeBlocking();
+};
+
+#endif /* FSFW_SRC_FSFW_OSAL_LINUX_COMMANDEXECUTOR_H_ */

src/fsfw/osal/linux/Timer.cpp

@@ -27,6 +27,7 @@ int Timer::setTimer(uint32_t intervalMs) {
 	timer.it_value.tv_nsec = (intervalMs * 1000000) % (1000000000);
 	timer.it_interval.tv_sec = 0;
 	timer.it_interval.tv_nsec = 0;
+	set = true;
 	return timer_settime(timerId, 0, &timer, NULL);
 }
 
@@ -43,3 +44,14 @@ int Timer::getTimer(uint32_t* remainingTimeMs){
 
 	return status;
 }
+
+bool Timer::isSet() const {
+    return this->set;
+}
+
+void Timer::resetTimer() {
+    if(not this->set) {
+        set = false;
+    }
+    setTimer(0);
+}

src/fsfw/osal/linux/Timer.h

@@ -38,7 +38,11 @@ public:
 	 */
 	int getTimer(uint32_t* remainingTimeMs);
 
+	bool isSet() const;
+	void resetTimer();
+
 private:
+	bool set = true;
 	timer_t timerId;
 };
 

src/fsfw/returnvalues/FwClassIds.h

@@ -72,6 +72,7 @@ enum: uint8_t {
     PUS_SERVICE_3, //PUS3
     PUS_SERVICE_9, //PUS9
     FILE_SYSTEM, //FILS
+    LINUX_OSAL, //UXOS
     HAL_SPI, //HSPI
     HAL_UART, //HURT
     HAL_I2C, //HI2C

src/fsfw/returnvalues/HasReturnvaluesIF.h

@@ -22,9 +22,9 @@ public:
 	 * @param number
 	 * @return
 	 */
-	static constexpr ReturnValue_t makeReturnCode(uint8_t interfaceId,
+	static constexpr ReturnValue_t makeReturnCode(uint8_t classId,
 			uint8_t number) {
-	    return (static_cast<ReturnValue_t>(interfaceId) << 8) + number;
+	    return (static_cast<ReturnValue_t>(classId) << 8) + number;
 	}
 };
 

src/fsfw/tasks/Typedef.h

@@ -1,5 +1,8 @@
-#ifndef FRAMEWORK_TASKS_TYPEDEF_H_
-#define FRAMEWORK_TASKS_TYPEDEF_H_
+#ifndef FSFW_TASKS_TYPEDEF_H_
+#define FSFW_TASKS_TYPEDEF_H_
+
+#include <cstdint>
+#include <cstddef>
 
 typedef const char* TaskName;
 typedef uint32_t TaskPriority;
@@ -7,4 +10,4 @@ typedef size_t TaskStackSize;
 typedef double TaskPeriod;
 typedef void (*TaskDeadlineMissedFunction)();
 
-#endif /* FRAMEWORK_TASKS_TYPEDEF_H_ */
+#endif /* FSFW_TASKS_TYPEDEF_H_ */

src/fsfw/tmtcpacket/SpacePacketBase.cpp

@@ -54,6 +54,11 @@ void SpacePacketBase::setAPID( uint16_t new_apid ) {
 	this->data->header.packet_id_l = ( new_apid & 0x00FF );
 }
 
+void SpacePacketBase::setSequenceFlags( uint8_t sequenceflags ) {
+    this->data->header.sequence_control_h &= 0x3F;
+    this->data->header.sequence_control_h |= sequenceflags << 6;
+}
+
 uint16_t SpacePacketBase::getPacketSequenceControl( void ) {
 	return ( (this->data->header.sequence_control_h) << 8 )
 		+ this->data->header.sequence_control_l;

src/fsfw/tmtcpacket/SpacePacketBase.h

@@ -109,6 +109,13 @@ public:
 	 * 			ignored.
 	 */
 	void setAPID( uint16_t setAPID );
+
+	/**
+     * Sets the sequence flags of a packet, which are bit 17 and 18 in the space packet header.
+     * @param   The sequence flags to set
+     */
+    void setSequenceFlags( uint8_t sequenceflags );
+
 	/**
 	 * Returns the CCSDS packet sequence control field, which are the third and
 	 * the fourth byte of the CCSDS primary header.

src/fsfw/tmtcservices/TmTcBridge.h

@@ -19,7 +19,7 @@ class TmTcBridge : public AcceptsTelemetryIF,
 public:
 	static constexpr uint8_t TMTC_RECEPTION_QUEUE_DEPTH = 20;
 	static constexpr uint8_t LIMIT_STORED_DATA_SENT_PER_CYCLE = 15;
-	static constexpr uint8_t LIMIT_DOWNLINK_PACKETS_STORED = 20;
+	static constexpr uint8_t LIMIT_DOWNLINK_PACKETS_STORED = 200;
 
 	static constexpr uint8_t DEFAULT_STORED_DATA_SENT_PER_CYCLE = 5;
 	static constexpr uint8_t DEFAULT_DOWNLINK_PACKETS_STORED = 10;