fsfw/osal/windows/TmTcWinUdpBridge.cpp

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#include "TmTcWinUdpBridge.h"
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#include "tcpipHelpers.h"
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#include <fsfw/serviceinterface/ServiceInterface.h>
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#include <fsfw/ipc/MutexGuard.h>
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#include <ws2tcpip.h>
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//! Debugging preprocessor define.
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#define FSFW_UDP_SEND_WIRETAPPING_ENABLED 0
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const std::string TmTcWinUdpBridge::DEFAULT_UDP_SERVER_PORT = tcpip::DEFAULT_UDP_SERVER_PORT;
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TmTcWinUdpBridge::TmTcWinUdpBridge(object_id_t objectId, object_id_t tcDestination,
object_id_t tmStoreId, object_id_t tcStoreId, std::string udpServerPort):
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TmTcBridge(objectId, tcDestination, tmStoreId, tcStoreId) {
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if(udpServerPort == "") {
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this->udpServerPort = DEFAULT_UDP_SERVER_PORT;
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}
else {
this->udpServerPort = udpServerPort;
}
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mutex = MutexFactory::instance()->createMutex();
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communicationLinkUp = false;
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}
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ReturnValue_t TmTcWinUdpBridge::initialize() {
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ReturnValue_t result = TmTcBridge::initialize();
if(result != HasReturnvaluesIF::RETURN_OK) {
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#if FSFW_CPP_OSTREAM_ENABLED == 1
sif::error << "TmTcWinUdpBridge::initialize: TmTcBridge initialization failed!"
<< std::endl;
#endif
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return result;
}
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/* Initiates Winsock DLL. */
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WSAData wsaData;
WORD wVersionRequested = MAKEWORD(2, 2);
int err = WSAStartup(wVersionRequested, &wsaData);
if (err != 0) {
/* Tell the user that we could not find a usable */
/* Winsock DLL. */
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#if FSFW_CPP_OSTREAM_ENABLED == 1
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sif::error << "TmTcWinUdpBridge::TmTcWinUdpBridge: WSAStartup failed with error: " <<
err << std::endl;
#else
sif::printError("TmTcWinUdpBridge::TmTcWinUdpBridge: WSAStartup failed with error: %d\n",
err);
#endif
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return HasReturnvaluesIF::RETURN_FAILED;
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}
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struct addrinfo *addrResult = nullptr;
struct addrinfo hints;
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ZeroMemory(&hints, sizeof (hints));
hints.ai_family = AF_INET;
hints.ai_socktype = SOCK_DGRAM;
hints.ai_protocol = IPPROTO_UDP;
hints.ai_flags = AI_PASSIVE;
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/* Set up UDP socket:
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https://en.wikipedia.org/wiki/Getaddrinfo
Passing nullptr as the first parameter and specifying AI_PASSIVE in hints will cause
getaddrinfo to assign the address 0.0.0.0 (any address) */
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int retval = getaddrinfo(nullptr, udpServerPort.c_str(), &hints, &addrResult);
if (retval != 0) {
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#if FSFW_CPP_OSTREAM_ENABLED == 1
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sif::warning << "TmTcWinUdpBridge::TmTcWinUdpBridge: Retrieving address info failed!" <<
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std::endl;
#endif
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return HasReturnvaluesIF::RETURN_FAILED;
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}
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serverSocket = socket(addrResult->ai_family, addrResult->ai_socktype, addrResult->ai_protocol);
if(serverSocket == INVALID_SOCKET) {
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#if FSFW_CPP_OSTREAM_ENABLED == 1
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sif::warning << "TmTcWinUdpBridge::TmTcWinUdpBridge: Could not open UDP socket!" <<
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std::endl;
#endif
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freeaddrinfo(addrResult);
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tcpip::handleError(tcpip::Protocol::UDP, tcpip::ErrorSources::SOCKET_CALL);
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return HasReturnvaluesIF::RETURN_FAILED;
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}
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retval = bind(serverSocket, addrResult->ai_addr, static_cast<int>(addrResult->ai_addrlen));
if(retval != 0) {
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#if FSFW_CPP_OSTREAM_ENABLED == 1
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sif::error << "TmTcWinUdpBridge::TmTcWinUdpBridge: Could not bind "
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"local port (" << udpServerPort << ") to server socket!" << std::endl;
#endif
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freeaddrinfo(addrResult);
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tcpip::handleError(tcpip::Protocol::UDP, tcpip::ErrorSources::BIND_CALL);
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}
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freeaddrinfo(addrResult);
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return HasReturnvaluesIF::RETURN_OK;
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}
TmTcWinUdpBridge::~TmTcWinUdpBridge() {
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if(mutex != nullptr) {
MutexFactory::instance()->deleteMutex(mutex);
}
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closesocket(serverSocket);
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WSACleanup();
}
ReturnValue_t TmTcWinUdpBridge::sendTm(const uint8_t *data, size_t dataLen) {
int flags = 0;
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/* The target address can be set by different threads so this lock ensures thread-safety */
MutexGuard lock(mutex, timeoutType, mutexTimeoutMs);
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#if FSFW_CPP_OSTREAM_ENABLED == 1 && FSFW_UDP_SEND_WIRETAPPING_ENABLED == 1
char ipAddress [15];
sif::debug << "IP Address Sender: "<< inet_ntop(AF_INET,
&clientAddress.sin_addr.s_addr, ipAddress, 15) << std::endl;
#endif
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int bytesSent = sendto(
serverSocket,
reinterpret_cast<const char*>(data),
dataLen,
flags,
reinterpret_cast<sockaddr*>(&clientAddress),
clientAddressLen
);
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if(bytesSent == SOCKET_ERROR) {
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#if FSFW_CPP_OSTREAM_ENABLED == 1
sif::warning << "TmTcWinUdpBridge::sendTm: Send operation failed." << std::endl;
#endif
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tcpip::handleError(tcpip::Protocol::UDP, tcpip::ErrorSources::SENDTO_CALL);
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}
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#if FSFW_CPP_OSTREAM_ENABLED == 1 && FSFW_UDP_SEND_WIRETAPPING_ENABLED == 1
sif::debug << "TmTcUnixUdpBridge::sendTm: " << bytesSent << " bytes were"
" sent." << std::endl;
#endif
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return HasReturnvaluesIF::RETURN_OK;
}
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void TmTcWinUdpBridge::checkAndSetClientAddress(sockaddr_in& newAddress) {
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/* The target address can be set by different threads so this lock ensures thread-safety */
MutexGuard lock(mutex, timeoutType, mutexTimeoutMs);
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#if FSFW_CPP_OSTREAM_ENABLED == 1 && FSFW_UDP_SEND_WIRETAPPING_ENABLED == 1
char ipAddress [15];
sif::debug << "IP Address Sender: "<< inet_ntop(AF_INET,
&newAddress.sin_addr.s_addr, ipAddress, 15) << std::endl;
sif::debug << "IP Address Old: " << inet_ntop(AF_INET,
&clientAddress.sin_addr.s_addr, ipAddress, 15) << std::endl;
#endif
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registerCommConnect();
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/* Set new IP address if it has changed. */
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if(clientAddress.sin_addr.s_addr != newAddress.sin_addr.s_addr) {
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clientAddress = newAddress;
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clientAddressLen = sizeof(clientAddress);
}
}
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void TmTcWinUdpBridge::setMutexProperties(MutexIF::TimeoutType timeoutType,
dur_millis_t timeoutMs) {
this->timeoutType = timeoutType;
this->mutexTimeoutMs = timeoutMs;
}