int MenuSubnetEingabe::buttonOk() {
if (state == IPEINGABESTATEOK) {
cout << "Sichere neue Subnetz-Masken-Einstellungen..." << std::endl;
// Alte Einstellungen laden
std::ifstream ifs("/etc/network/interfaces");
std::string content((std::istreambuf_iterator<char>(ifs)), (std::istreambuf_iterator<char>()));
cout << "[1/4] Aktuelle Einstellungen geladen." << std::endl;
// alte IP durch neue IP ersetzen
size_t start_pos = content.find(originalIp);
if(start_pos == std::string::npos) {
return false;
}
content.replace(start_pos, originalIp.length(), getIpString());
cout << "[2/4] Neue Einstellungen erstellt." << std::endl;
// Neue Einstellungen in Datei schreiben
std::ofstream out("/etc/network/interfaces");
out << content;
out.close();
cout << "[3/4] Neue Einstellungen gespeichert." << std::endl;
cout << "[4/4] Setzen der neuen Subnetz-Maske." << std::endl;
system(("ifconfig eth0 netmask " + getIpString()).c_str());
this->settingsSaved();
} else if (state == IPEINGABESTATEBACK) {
return MENURETURN;
}
return MENUSTAY;
}
int addParticipant(participantsDb_t db,
struct sockaddr_in *addr,
int capabilities,
unsigned int rcvbuf,
int pointopoint) {
int i;
if((i = lookupParticipant(db, addr)) >= 0)
return i;
for (i=0; i < MAX_CLIENTS; i++) {
if (!db->clientTable[i].used) {
char ipBuffer[16];
db->clientTable[i].addr = *addr;
db->clientTable[i].used = 1;
db->clientTable[i].capabilities = capabilities;
db->clientTable[i].rcvbuf = rcvbuf;
db->nrParticipants++;
flprintf("New connection from %s (#%d) %08x\n",
getIpString(addr, ipBuffer), i, capabilities);
#ifdef USE_SYSLOG
syslog(LOG_INFO, "New connection from %s (#%d)\n",
getIpString(addr, ipBuffer), i);
#endif
return i;
} else if(pointopoint)
return -1;
}
return -1; /* no space left in participant's table */
}
int removeParticipant(struct participantsDb *db, int i) {
if(db->clientTable[i].used) {
char ipBuffer[16];
flprintf("Disconnecting #%d (%s)\n", i,
getIpString(&db->clientTable[i].addr, ipBuffer));
#ifdef USE_SYSLOG
syslog(LOG_INFO, "Disconnecting #%d (%s)\n", i,
getIpString(&db->clientTable[i].addr, ipBuffer));
#endif
db->clientTable[i].used = 0;
db->nrParticipants--;
}
return 0;
}
int MenuDnsEingabe::buttonOk() {
if (state == IPEINGABESTATEOK) {
cout << "Sichere neue DNS-Einstellungen..." << std::endl;
// Alte Einstellungen laden
std::ifstream ifs("/etc/network/interfaces");
std::string content((std::istreambuf_iterator<char>(ifs)), (std::istreambuf_iterator<char>()));
cout << "[1/4] Aktuelle Einstellungen geladen." << std::endl;
// alte IP durch neue IP ersetzen
size_t start_pos = content.find(originalIp);
if(start_pos == std::string::npos) {
return false;
}
content.replace(start_pos, originalIp.length(), getIpString());
cout << "[2/4] Neue Einstellungen erstellt." << std::endl;
// Neue Einstellungen in Datei schreiben
std::ofstream out("/etc/network/interfaces");
out << content;
out.close();
cout << "[3/4] Neue Einstellungen gespeichert." << std::endl;
cout << "[4/4] Starte Netzwerk-Service neu..." << std::endl;
cout << "[4/4] ACHTUNG: Dieser Vorgang wird unter Umstaenden die SSH-Verbindung trennen!" << std::endl;
system("ifconfig down eth0 && ifconfig up eth0");
this->settingsSaved();
} else if (state == IPEINGABESTATEBACK) {
return MENURETURN;
}
return MENUSTAY;
}
static int sendRawData(int sock,
struct net_config *config,
char *header, int headerSize,
unsigned char *data, int dataSize)
{
struct iovec iov[2];
struct msghdr hdr;
int packetSize;
int ret;
iov[0].iov_base = header;
iov[0].iov_len = headerSize;
iov[1].iov_base = data;
iov[1].iov_len = dataSize;
hdr.msg_name = &config->dataMcastAddr;
hdr.msg_namelen = sizeof(struct sockaddr_in);
hdr.msg_iov = iov;
hdr.msg_iovlen = 2;
initMsgHdr(&hdr);
packetSize = dataSize + headerSize;
rgWaitAll(config, sock, config->dataMcastAddr.sin_addr.s_addr, packetSize);
ret = sendmsg(sock, &hdr, 0);
if (ret < 0) {
char ipBuffer[16];
udpc_fatal(1, "Could not broadcast data packet to %s:%d (%s)\n",
getIpString(&config->dataMcastAddr, ipBuffer),
getPort(&config->dataMcastAddr),
strerror(errno));
}
return 0;
}
static int sendRawData(int sock,
struct net_config *config,
char *header, int headerSize,
unsigned char *data, int dataSize)
{
struct iovec iov[2];
struct msghdr hdr;
int packetSize;
int ret;
iov[0].iov_base = header;
iov[0].iov_len = headerSize;
iov[1].iov_base = data;
iov[1].iov_len = dataSize;
hdr.msg_name = &config->dataMcastAddr;
hdr.msg_namelen = sizeof(struct sockaddr_in);
hdr.msg_iov = iov;
hdr.msg_iovlen = 2;
initMsgHdr(&hdr);
packetSize = dataSize + headerSize;
doRateLimit(config->rateLimit, packetSize);
#ifdef FLAG_AUTORATE
if(config->flags & FLAG_AUTORATE)
doAutoRateLimit(sock, config->dir, config->sendbuf, packetSize);
#endif
ret = sendmsg(sock, &hdr, 0);
if (ret < 0) {
char ipBuffer[16];
udpc_fatal(1, "Could not broadcast data packet to %s:%d (%s)\n",
getIpString(&config->dataMcastAddr, ipBuffer),
getPort(&config->dataMcastAddr),
strerror(errno));
}
return 0;
}
int doReceive(int s, void *message, size_t len,
struct sockaddr_in *from, int portBase) {
socklen_t slen;
int r;
unsigned short port;
char ipBuffer[16];
slen = sizeof(*from);
#ifdef LOSSTEST
loseRecvPacket(s);
#endif
r = recvfrom(s, message, len, 0, (struct sockaddr *)from, &slen);
if (r < 0)
return r;
port = ntohs(from->sin_port);
if(port != RECEIVER_PORT(portBase) && port != SENDER_PORT(portBase)) {
udpc_flprintf("Bad message from port %s.%d\n",
getIpString(from, ipBuffer),
ntohs(((struct sockaddr_in *)from)->sin_port));
return -1;
}
/* flprintf("recv: %08x %d\n", *(int*) message, r);*/
return r;
}
int startReceiver(int doWarn,
struct disk_config *disk_config,
struct net_config *net_config,
struct stat_config *stat_config,
const char *ifName)
{
char ipBuffer[16];
union serverControlMsg Msg;
int connectReqSent=0;
struct client_config client_config;
int outFile=1;
int pipedOutFile;
struct sockaddr_in myIp;
int pipePid = 0;
int origOutFile;
int haveServerAddress;
client_config.sender_is_newgen = 0;
net_config->net_if = getNetIf(ifName);
zeroSockArray(client_config.socks, NR_CLIENT_SOCKS);
client_config.S_UCAST = makeSocket(ADDR_TYPE_UCAST,
net_config->net_if,
0, RECEIVER_PORT(net_config->portBase));
client_config.S_BCAST = makeSocket(ADDR_TYPE_BCAST,
net_config->net_if,
0, RECEIVER_PORT(net_config->portBase));
if(net_config->ttl == 1 && net_config->mcastRdv == NULL) {
getBroadCastAddress(net_config->net_if,
&net_config->controlMcastAddr,
SENDER_PORT(net_config->portBase));
setSocketToBroadcast(client_config.S_UCAST);
} else {
getMcastAllAddress(&net_config->controlMcastAddr,
net_config->mcastRdv,
SENDER_PORT(net_config->portBase));
if(isMcastAddress(&net_config->controlMcastAddr)) {
setMcastDestination(client_config.S_UCAST, net_config->net_if,
&net_config->controlMcastAddr);
setTtl(client_config.S_UCAST, net_config->ttl);
client_config.S_MCAST_CTRL =
makeSocket(ADDR_TYPE_MCAST,
net_config->net_if,
&net_config->controlMcastAddr,
RECEIVER_PORT(net_config->portBase));
// TODO: subscribe address as receiver to!
}
}
clearIp(&net_config->dataMcastAddr);
udpc_flprintf("%sUDP receiver for %s at ",
disk_config->pipeName == NULL ? "" : "Compressed ",
disk_config->fileName == NULL ? "(stdout)":disk_config->fileName);
printMyIp(net_config->net_if);
udpc_flprintf(" on %s\n", net_config->net_if->name);
connectReqSent = 0;
haveServerAddress = 0;
client_config.clientNumber= 0; /*default number for asynchronous transfer*/
while(1) {
// int len;
int msglen;
int sock;
if (!connectReqSent) {
if (sendConnectReq(&client_config, net_config,
haveServerAddress) < 0) {
perror("sendto to locate server");
}
connectReqSent = 1;
}
haveServerAddress=0;
sock = udpc_selectSock(client_config.socks, NR_CLIENT_SOCKS,
net_config->startTimeout);
if(sock < 0) {
return -1;
}
// len = sizeof(server);
msglen=RECV(sock,
Msg, client_config.serverAddr, net_config->portBase);
if (msglen < 0) {
perror("recvfrom to locate server");
exit(1);
}
if(getPort(&client_config.serverAddr) !=
SENDER_PORT(net_config->portBase))
/* not from the right port */
continue;
switch(ntohs(Msg.opCode)) {
case CMD_CONNECT_REPLY:
client_config.clientNumber = ntohl(Msg.connectReply.clNr);
net_config->blockSize = ntohl(Msg.connectReply.blockSize);
udpc_flprintf("received message, cap=%08lx\n",
(long) ntohl(Msg.connectReply.capabilities));
if(ntohl(Msg.connectReply.capabilities) & CAP_NEW_GEN) {
client_config.sender_is_newgen = 1;
copyFromMessage(&net_config->dataMcastAddr,
Msg.connectReply.mcastAddr);
}
if (client_config.clientNumber == -1) {
udpc_fatal(1, "Too many clients already connected\n");
}
goto break_loop;
case CMD_HELLO_STREAMING:
case CMD_HELLO_NEW:
case CMD_HELLO:
connectReqSent = 0;
if(ntohs(Msg.opCode) == CMD_HELLO_STREAMING)
net_config->flags |= FLAG_STREAMING;
if(ntohl(Msg.hello.capabilities) & CAP_NEW_GEN) {
client_config.sender_is_newgen = 1;
copyFromMessage(&net_config->dataMcastAddr,
Msg.hello.mcastAddr);
net_config->blockSize = ntohs(Msg.hello.blockSize);
if(ntohl(Msg.hello.capabilities) & CAP_ASYNC)
net_config->flags |= FLAG_PASSIVE;
if(net_config->flags & FLAG_PASSIVE)
goto break_loop;
}
haveServerAddress=1;
continue;
case CMD_CONNECT_REQ:
case CMD_DATA:
case CMD_FEC:
continue;
default:
break;
}
udpc_fatal(1,
"Bad server reply %04x. Other transfer in progress?\n",
(unsigned short) ntohs(Msg.opCode));
}
break_loop:
udpc_flprintf("Connected as #%d to %s\n",
client_config.clientNumber,
getIpString(&client_config.serverAddr, ipBuffer));
getMyAddress(net_config->net_if, &myIp);
if(!ipIsZero(&net_config->dataMcastAddr) &&
!ipIsEqual(&net_config->dataMcastAddr, &myIp) &&
(ipIsZero(&net_config->controlMcastAddr) ||
!ipIsEqual(&net_config->dataMcastAddr, &net_config->controlMcastAddr)
)) {
udpc_flprintf("Listening to multicast on %s\n",
getIpString(&net_config->dataMcastAddr, ipBuffer));
client_config.S_MCAST_DATA =
makeSocket(ADDR_TYPE_MCAST, net_config->net_if,
&net_config->dataMcastAddr,
RECEIVER_PORT(net_config->portBase));
}
if(net_config->requestedBufSize) {
int i;
for(i=0; i<NR_CLIENT_SOCKS; i++)
if(client_config.socks[i] != -1)
setRcvBuf(client_config.socks[i],net_config->requestedBufSize);
}
outFile=openOutFile(disk_config);
origOutFile = outFile;
pipedOutFile = openPipe(outFile, disk_config, &pipePid);
global_client_config= &client_config;
atexit(sendDisconnectWrapper);
{
struct fifo fifo;
int printUncompressedPos =
udpc_shouldPrintUncompressedPos(stat_config->printUncompressedPos,
origOutFile, pipedOutFile);
receiver_stats_t stats = allocReadStats(origOutFile,
stat_config->statPeriod,
printUncompressedPos);
udpc_initFifo(&fifo, net_config->blockSize);
fifo.data = pc_makeProduconsum(fifo.dataBufSize, "receive");
client_config.isStarted = 0;
if((net_config->flags & (FLAG_PASSIVE|FLAG_NOKBD))) {
/* No console used */
client_config.console = NULL;
} else {
if(doWarn)
udpc_flprintf("WARNING: This will overwrite the hard disk of this machine\n");
client_config.console = prepareConsole(0);
atexit(fixConsole);
}
spawnNetReceiver(&fifo,&client_config, net_config, stats);
writer(&fifo, pipedOutFile);
if(pipePid) {
close(pipedOutFile);
}
pthread_join(client_config.thread, NULL);
/* if we have a pipe, now wait for that too */
if(pipePid) {
udpc_waitForProcess(pipePid, "Pipe");
}
#ifndef __MINGW32__
fsync(origOutFile);
#endif /* __MINGW32__ */
displayReceiverStats(stats, 1);
}
fixConsole();
sendDisconnectWrapper();
global_client_config= NULL;
return 0;
}
