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created common OSAL stuff to unify UDP code

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This commit is contained in:
Robin Müller
2021-03-21 00:30:33 +01:00
parent e44f8bfea3
commit d625642abc
13 changed files with 214 additions and 89 deletions
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176
osal/common/UdpTmTcBridge.cpp Normal file
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#include "tcpipHelpers.h"
#include <fsfw/serviceinterface/ServiceInterface.h>
#include <fsfw/ipc/MutexGuard.h>
#include <fsfw/osal/common/UdpTmTcBridge.h>
#ifdef _WIN32
#include <ws2tcpip.h>
#elif defined(__unix__)
#include <arap/inet.h>
#endif
//! Debugging preprocessor define.
#define FSFW_UDP_SEND_WIRETAPPING_ENABLED 0
const std::string UdpTmTcBridge::DEFAULT_UDP_SERVER_PORT = tcpip::DEFAULT_SERVER_PORT;
UdpTmTcBridge::UdpTmTcBridge(object_id_t objectId, object_id_t tcDestination,
object_id_t tmStoreId, object_id_t tcStoreId, std::string udpServerPort):
TmTcBridge(objectId, tcDestination, tmStoreId, tcStoreId) {
if(udpServerPort == "") {
this->udpServerPort = DEFAULT_UDP_SERVER_PORT;
}
else {
this->udpServerPort = udpServerPort;
}
mutex = MutexFactory::instance()->createMutex();
communicationLinkUp = false;
}
ReturnValue_t UdpTmTcBridge::initialize() {
ReturnValue_t result = TmTcBridge::initialize();
if(result != HasReturnvaluesIF::RETURN_OK) {
#if FSFW_CPP_OSTREAM_ENABLED == 1
sif::error << "TmTcUdpBridge::initialize: TmTcBridge initialization failed!"
<< std::endl;
#endif
return result;
}
#ifdef _WIN32
/* Initiates Winsock DLL. */
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. */
#if FSFW_CPP_OSTREAM_ENABLED == 1
sif::error << "TmTcUdpBridge::TmTcUdpBridge: WSAStartup failed with error: " <<
err << std::endl;
#else
sif::printError("TmTcUdpBridge::TmTcUdpBridge: WSAStartup failed with error: %d\n",
err);
#endif
return HasReturnvaluesIF::RETURN_FAILED;
}
#endif
struct addrinfo *addrResult = nullptr;
struct addrinfo hints = { 0 };
hints.ai_family = AF_INET;
hints.ai_socktype = SOCK_DGRAM;
hints.ai_protocol = IPPROTO_UDP;
#ifdef _WIN32
/* See:
https://docs.microsoft.com/en-us/windows/win32/api/ws2tcpip/nf-ws2tcpip-getaddrinfo
for information about AI_PASSIVE. */
hints.ai_flags = AI_PASSIVE;
#endif
/* Set up UDP socket:
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) */
int retval = getaddrinfo(nullptr, udpServerPort.c_str(), &hints, &addrResult);
if (retval != 0) {
#if FSFW_CPP_OSTREAM_ENABLED == 1
sif::warning << "TmTcUdpBridge::TmTcUdpBridge: Retrieving address info failed!" <<
std::endl;
#endif
return HasReturnvaluesIF::RETURN_FAILED;
}
serverSocket = socket(addrResult->ai_family, addrResult->ai_socktype, addrResult->ai_protocol);
if(serverSocket == INVALID_SOCKET) {
#if FSFW_CPP_OSTREAM_ENABLED == 1
sif::warning << "TmTcUdpBridge::TmTcUdpBridge: Could not open UDP socket!" <<
std::endl;
#endif
freeaddrinfo(addrResult);
tcpip::handleError(tcpip::Protocol::UDP, tcpip::ErrorSources::SOCKET_CALL);
return HasReturnvaluesIF::RETURN_FAILED;
}
retval = bind(serverSocket, addrResult->ai_addr, static_cast<int>(addrResult->ai_addrlen));
if(retval != 0) {
#if FSFW_CPP_OSTREAM_ENABLED == 1
sif::error << "TmTcUdpBridge::TmTcUdpBridge: Could not bind "
"local port (" << udpServerPort << ") to server socket!" << std::endl;
#endif
freeaddrinfo(addrResult);
tcpip::handleError(tcpip::Protocol::UDP, tcpip::ErrorSources::BIND_CALL);
}
freeaddrinfo(addrResult);
return HasReturnvaluesIF::RETURN_OK;
}
UdpTmTcBridge::~UdpTmTcBridge() {
if(mutex != nullptr) {
MutexFactory::instance()->deleteMutex(mutex);
}
}
ReturnValue_t UdpTmTcBridge::sendTm(const uint8_t *data, size_t dataLen) {
int flags = 0;
/* The target address can be set by different threads so this lock ensures thread-safety */
MutexGuard lock(mutex, timeoutType, mutexTimeoutMs);
#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
int bytesSent = sendto(
serverSocket,
reinterpret_cast<const char*>(data),
dataLen,
flags,
reinterpret_cast<sockaddr*>(&clientAddress),
clientAddressLen
);
if(bytesSent == SOCKET_ERROR) {
#if FSFW_CPP_OSTREAM_ENABLED == 1
sif::warning << "TmTcUdpBridge::sendTm: Send operation failed." << std::endl;
#endif
tcpip::handleError(tcpip::Protocol::UDP, tcpip::ErrorSources::SENDTO_CALL);
}
#if FSFW_CPP_OSTREAM_ENABLED == 1 && FSFW_UDP_SEND_WIRETAPPING_ENABLED == 1
sif::debug << "TmTcUdpBridge::sendTm: " << bytesSent << " bytes were"
" sent." << std::endl;
#endif
return HasReturnvaluesIF::RETURN_OK;
}
void UdpTmTcBridge::checkAndSetClientAddress(sockaddr_in& newAddress) {
/* The target address can be set by different threads so this lock ensures thread-safety */
MutexGuard lock(mutex, timeoutType, mutexTimeoutMs);
#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
registerCommConnect();
/* Set new IP address to reply to */
clientAddress = newAddress;
clientAddressLen = sizeof(clientAddress);
}
void UdpTmTcBridge::setMutexProperties(MutexIF::TimeoutType timeoutType,
dur_millis_t timeoutMs) {
this->timeoutType = timeoutType;
this->mutexTimeoutMs = timeoutMs;
}