コード例 #1
0
ファイル: TcpRedirect.cpp プロジェクト: tkusukawa/TcpRedirect
int main(int argc, char **argv)
{
    if(argc != REQ_ARG_NUM) {
        printf("usage: %s [listen port] [destination host] [destination port]\n", argv[0]);
        exit(0);
    }

    int port = atoi(argv[L_PORT_ARG]);
    int listenSocket = makeListenSocket(port);
    printf("\nListen Port %d -> %s (%s)\n",
           port, argv[D_HOST_ARG], argv[D_PORT_ARG]);
    fflush(stdout);
    
    fd_set rfds;
    FD_ZERO(&rfds);
    FD_SET(listenSocket, &rfds);

    RelayList *relayList = NULL;
    char relayBuf[RELAY_BUF_SIZE];
    for(;;) {
        fd_set rflg = rfds;
        int ret = select(FD_SETSIZE, &rflg, NULL, NULL, NULL);
        if(ret < 0) {
            perror("main:select");
            exit(1);
        }
        else if(ret > 0) {

            RelayList **pp = &relayList;
            while(*pp != NULL) {
                int relayRes = 0;
                if(FD_ISSET((*pp)->clientSocket, &rflg)) {
                    relayRes = relaySocket((*pp)->clientSocket, (*pp)->serverSocket,
                                           relayBuf, sizeof(relayBuf));
                    //printf("%s->:%d[byte]\n", (*pp)->clientHost, relayRes);
                }
                else if(FD_ISSET((*pp)->serverSocket, &rflg)) {
                    relayRes = relaySocket((*pp)->serverSocket, (*pp)->clientSocket,
                                           relayBuf, sizeof(relayBuf));
                    //printf("%s<-:%d[byte]\n", (*pp)->clientHost, relayRes);
                }
                if(relayRes < 0) {
                    deleteRelayNode(pp, &rfds);
                    continue;
                }
                pp = &((*pp)->next);
            }

            if(FD_ISSET(listenSocket, &rflg)) {
                int clientSocket = acceptSocket(listenSocket);
                if(clientSocket>=0) {
                    int serverSocket = makeServerConnection(argv[D_HOST_ARG], atoi(argv[D_PORT_ARG]));
                    if(serverSocket >= 0) {
                        addRelayNode(&relayList, &rfds, clientSocket, serverSocket);
                    }
                }
            }
        }
    }
}
コード例 #2
0
ファイル: TcpRcv.cpp プロジェクト: tkusukawa/TcpRedirect
main(int argc, char **argv)
{
    if(argc != REQ_ARG_NUM) {
        printf("usage: %s [listen port]\n", argv[0]);
        exit(0);
    }

    int port = atoi(argv[L_PORT_ARG]);
    int listenSocket = makeListenSocket(port);
    printf("\nListen Port %d -> %s (%s)\n",
           port, argv[D_HOST_ARG], argv[D_PORT_ARG]);
    fflush(stdout);
    
    fd_set rfds;
    FD_ZERO(&rfds);
    FD_SET(listenSocket, &rfds);

    RcvList *rcvList = NULL;
    char rcvBuf[RCV_BUF_SIZE];
    for(;;) {
        fd_set rflg = rfds;
        int ret = select(FD_SETSIZE, &rflg, NULL, NULL, NULL);
        if(ret < 0) {
            perror("main:select");
            exit(1);
        }
        else if(ret > 0) {

            RcvList **pp = &rcvList;
            while(*pp != NULL) {
                int rcvRes = 0;
                if(FD_ISSET((*pp)->clientSocket, &rflg)) {
                    rcvRes = rcvSocket((*pp)->clientSocket,
                                           rcvBuf, sizeof(rcvBuf));
                    printf("%s->:%d[byte]\n", (*pp)->clientHost, rcvRes);
		    printf("HEX:");
		    for(int i=0; i < rcvRes; i++) {
		      printf("%02X,",rcvBuf[i]);
		    }
		    printf("\nSTR:");
		    for(int i=0; i < rcvRes; i++) {
		      printf("%c",rcvBuf[i]);
		    }
		    printf("\n");
                }
                if(rcvRes < 0) {
                    deleteRcvNode(pp, &rfds);
                    continue;
                }
                pp = &((*pp)->next);
            }

            if(FD_ISSET(listenSocket, &rflg)) {
                int clientSocket = acceptSocket(listenSocket);
                if(clientSocket>=0) {
                    addRcvNode(&rcvList, &rfds, clientSocket);
                }
            }
        }
    }
}
コード例 #3
0
ファイル: Beacon.cpp プロジェクト: JakeMont/OpenBFDD
  bool Beacon::Run(const list<SockAddr> &controlPorts, const list<IpAddr> &listenAddrs)
  {
    if (m_scheduler != NULL)
    {
      gLog.LogError("Can not call Beacon::Run twice. Aborting.");
      return false;
    }

    if (controlPorts.empty())
    {
      gLog.LogError("At least one control port is required. Aborting.");
      return false;
    }

    RaiiNullBase<CommandProcessorList, closeCommandProcessorList> commandProcessors(new CommandProcessorList);

    for (list<SockAddr>::const_iterator it = controlPorts.begin(); it != controlPorts.end(); ++it)
    {
      CommandProcessor *processor = MakeCommandProcessor(*this);
      commandProcessors->push_back(processor);
      if (!processor->BeginListening(*it))
      {
        gLog.LogError("Failed to start command processing thread on %s.  Aborting.", it->ToString());
        return false;
      }
    }

#ifdef USE_KEVENT_SCHEDULER
    m_scheduler = new KeventScheduler();
#else
    m_scheduler = new SelectScheduler();
#endif

    m_packet.AllocBuffers(bfd::MaxPacketSize,
                          Socket::GetMaxControlSizeReceiveDestinationAddress() +
                          Socket::GetMaxControlSizeRecieveTTLOrHops() +
                          +8 /*just in case*/);

    // We use this "signal channel" to communicate back to ourself in the Scheduler
    // thread.
    if (!m_scheduler->CreateSignalChannel(&m_selfSignalId, handleSelfMessageCallback, this))
    {
      gLog.LogError("Failed to create  self signal handling. Aborting.");
      return false;
    }

    RaiiNullBase<ListenCallbackDataList, closeListenCallbackDataList> callbackData(new ListenCallbackDataList);
    for (list<IpAddr>::const_iterator it = listenAddrs.begin(); it != listenAddrs.end(); ++it)
    {
      ListenCallbackData *data = new ListenCallbackData;
      data->beacon = this;
      callbackData->push_back(data);

      makeListenSocket(*it, data->socket);
      if (data->socket.empty())
      {
        gLog.LogError("Failed to create listen socket for %s on BFD port %hd.", it->ToString(), bfd::ListenPort);
        return false;
      }
      if (!m_scheduler->SetSocketCallback(data->socket, handleListenSocketCallback, data))
      {
        gLog.LogError("Failed to set m_scheduler socket processing for %s. Aborting.", it->ToString());
        return false;
      }
    }

    bool returnVal = false;
    if (!m_scheduler->Run())
      gLog.LogError("Failed to start m_scheduler. Aborting.");
    else
      returnVal = true;

    commandProcessors.Dispose();

    // In theory we should not be using m_scheduler except on the scheduler
    // callbacks, which end when Scheduler::Run() ends
    Scheduler *oldScheduler = m_scheduler;
    m_scheduler = NULL;
    delete oldScheduler;

    return returnVal;
  }