void TClntTransMgr::relayMsg(SPtr<TClntMsg> msgAnswer)
{
SPtr<TIfaceIface> ifaceQuestion;
SPtr<TIfaceIface> ifaceAnswer;
// is message valid?
if (!msgAnswer->check())
return ;
if (msgAnswer->getType() == RECONFIGURE_MSG) {
handleReconfigure(msgAnswer);
return;
}
#ifdef MOD_REMOTE_AUTOCONF
if (neighborInfoGet(msgAnswer->getTransID())) {
processRemoteReply(msgAnswer);
return;
}
#endif
// find which message this is answer for
bool found = false;
SPtr<TClntMsg> msgQuestion;
Transactions.first();
while( msgQuestion = SPtr_cast<TClntMsg>(Transactions.get())) {
if (msgQuestion->getTransID()==msgAnswer->getTransID()) {
found =true;
if (msgQuestion->getIface()!=msgAnswer->getIface()) {
ifaceQuestion = ClntIfaceMgr().getIfaceByID(msgQuestion->getIface());
ifaceAnswer = ClntIfaceMgr().getIfaceByID(msgAnswer->getIface());
Log(Warning) << "Reply for transaction 0x" << hex << msgQuestion->getTransID() << dec
<< " sent on " << ifaceQuestion->getFullName() << " was received on interface "
<< ifaceAnswer->getFullName() << "." << LogEnd;
// return; // don't return, just fix interface ID
// useful, when sending thru eth0, but receiving via loopback
msgAnswer->setIface(msgQuestion->getIface());
}
handleResponse(msgQuestion, msgAnswer);
break;
}
}
if (!found)
{
if (!Shutdown)
Log(Warning) << "Message with wrong transID (0x" << hex << msgAnswer->getTransID() << dec
<< ") received. Ignoring." << LogEnd;
else
Log(Debug) << "Message with transID=0x" << hex << msgAnswer->getTransID() << dec
<< " received, but ignored during shutdown." << LogEnd;
}
ClntCfgMgr().dump();
ClntAddrMgr().dump();
}
/**
* relays normal (i.e. not server replies) messages to defined servers
*/
void TRelTransMgr::relayMsg(SPtr<TRelMsg> msg)
{
static char buf[MAX_PACKET_LEN];
int offset = 0;
int bufLen;
int hopCount = 0;
if (!msg->check()) {
Log(Warning) << "Invalid message received." << LogEnd;
return;
}
if (msg->getDestAddr()) {
this->relayMsgRepl(msg);
return;
}
if (msg->getType() == RELAY_FORW_MSG) {
hopCount = msg->getHopCount()+1;
}
// prepare message
SPtr<TIfaceIface> iface = RelIfaceMgr().getIfaceByID(msg->getIface());
SPtr<TIPv6Addr> addr;
// store header
buf[offset++] = RELAY_FORW_MSG;
buf[offset++] = hopCount;
// store link-addr
iface->firstGlobalAddr();
addr = iface->getGlobalAddr();
if (!addr) {
Log(Warning) << "Interface " << iface->getFullName() << " does not have global address." << LogEnd;
addr = new TIPv6Addr("::", true);
}
addr->storeSelf(buf+offset);
offset += 16;
// store peer-addr
addr = msg->getRemoteAddr();
addr->storeSelf(buf+offset);
offset += 16;
SPtr<TRelCfgIface> cfgIface;
cfgIface = RelCfgMgr().getIfaceByID(msg->getIface());
TRelOptInterfaceID ifaceID(cfgIface->getInterfaceID(), 0);
if (RelCfgMgr().getInterfaceIDOrder()==REL_IFACE_ID_ORDER_BEFORE)
{
// store InterfaceID option
ifaceID.storeSelf(buf + offset);
offset += ifaceID.getSize();
Log(Debug) << "Interface-id option added before relayed message." << LogEnd;
}
// store relay msg option
writeUint16((buf+offset), OPTION_RELAY_MSG);
offset += sizeof(uint16_t);
writeUint16((buf+offset), msg->getSize());
offset += sizeof(uint16_t);
bufLen = msg->storeSelf(buf+offset);
offset += bufLen;
if (RelCfgMgr().getInterfaceIDOrder()==REL_IFACE_ID_ORDER_AFTER)
{
// store InterfaceID option
ifaceID.storeSelf(buf + offset);
offset += ifaceID.getSize();
Log(Debug) << "Interface-id option added after relayed message." << LogEnd;
}
if (RelCfgMgr().getInterfaceIDOrder()==REL_IFACE_ID_ORDER_NONE)
{
Log(Warning) << "Interface-id option not added (interface-id-order omit used in relay.conf). "
<< "That is a debugging feature and violates RFC3315. Use with caution." << LogEnd;
}
SPtr<TOptVendorData> remoteID = RelCfgMgr().getRemoteID();
if (remoteID) {
remoteID->storeSelf(buf+offset);
offset += remoteID->getSize();
Log(Debug) << "Appended RemoteID with " << remoteID->getVendorDataLen()
<< "-byte long data (option length="
<< remoteID->getSize() << ")." << LogEnd;
}
SPtr<TOpt> relayID = RelCfgMgr().getRelayID();
if (relayID) {
relayID->storeSelf(buf + offset);
offset += relayID->getSize();
Log(Debug) << "Appended Relay-ID with " << relayID->getSize() << " bytes." << LogEnd;
}
if (RelCfgMgr().getClientLinkLayerAddress()) {
SPtr<TOpt> lladdr = getClientLinkLayerAddr(msg);
if (lladdr) {
Log(Debug) << "Appended client link-layer address option with "
<< lladdr->getSize() << " bytes." << LogEnd;
lladdr->storeSelf(buf + offset);
offset += lladdr->getSize();
}
}
SPtr<TRelOptEcho> echo = RelCfgMgr().getEcho();
if (echo) {
echo->storeSelf(buf+offset);
offset += echo->getSize();
Log(Debug) << "Appended EchoRequest option with ";
int i=0;
char tmpBuf[256];
for (i=0;i<255;i++)
tmpBuf[i] = 255-i;
for (int i=0; i<echo->count(); i++) {
int code = echo->getReqOpt(i);
SPtr<TRelOptGeneric> gen = new TRelOptGeneric(code, tmpBuf, 4, 0);
gen->storeSelf(buf+offset);
offset += gen->getSize();
Log(Cont) << code << " ";
}
Log(Cont) << " opt(s)." << LogEnd;
}
RelCfgMgr().firstIface();
while (cfgIface = RelCfgMgr().getIface()) {
if (cfgIface->getServerUnicast()) {
Log(Notice) << "Relaying encapsulated " << msg->getName() << " message on the "
<< cfgIface->getFullName() << " interface to unicast ("
<< cfgIface->getServerUnicast()->getPlain() << ") address, port "
<< DHCPSERVER_PORT << "." << LogEnd;
if (!RelIfaceMgr().send(cfgIface->getID(), buf, offset,
cfgIface->getServerUnicast(), DHCPSERVER_PORT)) {
Log(Error) << "Failed to send data to server unicast address." << LogEnd;
}
}
if (cfgIface->getServerMulticast()) {
addr = new TIPv6Addr(ALL_DHCP_SERVERS, true);
Log(Notice) << "Relaying encapsulated " << msg->getName() << " message on the "
<< cfgIface->getFullName() << " interface to multicast ("
<< addr->getPlain() << ") address, port " << DHCPSERVER_PORT
<< "." << LogEnd;
if (!RelIfaceMgr().send(cfgIface->getID(), buf, offset, addr, DHCPSERVER_PORT)) {
Log(Error) << "Failed to send data to server multicast address." << LogEnd;
}
}
}
// save DB state regardless of action taken
RelCfgMgr().dump();
}
void TSrvTransMgr::relayMsg(SPtr<TSrvMsg> msg)
{
if (!msg->check()) {
// proper warnings will be printed in the check() method, if necessary.
// Log(Warning) << "Invalid message received." << LogEnd;
return;
}
// If unicast is disabled and the client sent it to unicast,
// send back status code with UseMulticast and be done with it.
if (!unicastCheck(msg)) {
Log(Warning) << "Message was dropped, because it was sent to unicast and "
<< "unicast traffic is not allowed." << LogEnd;
return;
}
SPtr<TSrvCfgIface> cfgIface = SrvCfgMgr().getIfaceByID(msg->getIface());
if (!cfgIface) {
Log(Error) << "Received message on unknown interface (ifindex="
<< msg->getIface() << LogEnd;
return;
}
// LEASE ASSIGN STEP 1: Evaluate defined expressions (client classification)
// Ask NodeClietSpecific to analyse the message
NodeClientSpecific::analyseMessage(msg);
// LEASE ASSIGN STEP 2: Is this client supported?
// is this client supported? (white-list, black-list)
if (!SrvCfgMgr().isClntSupported(msg)) {
return;
}
SPtr<TMsg> q, a; // question and answer
q = (Ptr*) msg;
switch(msg->getType()) {
case SOLICIT_MSG: {
if (msg->getOption(OPTION_RAPID_COMMIT)) {
if (!cfgIface->getRapidCommit()) {
Log(Info) << "SOLICIT with RAPID-COMMIT received, but RAPID-COMMIT is disabled on "
<< cfgIface->getName() << " interface." << LogEnd;
a = new TSrvMsgAdvertise((Ptr*)msg);
} else {
SPtr<TSrvMsgSolicit> nmsg = (Ptr*)msg;
a = new TSrvMsgReply(nmsg);
}
} else {
a = new TSrvMsgAdvertise( (Ptr*) msg);
}
break;
}
case REQUEST_MSG: {
SPtr<TSrvMsgRequest> nmsg = (Ptr*)msg;
a = new TSrvMsgReply(nmsg);
break;
}
case CONFIRM_MSG: {
SPtr<TSrvMsgConfirm> nmsg=(Ptr*)msg;
a = new TSrvMsgReply(nmsg);
break;
}
case RENEW_MSG: {
SPtr<TSrvMsgRenew> nmsg=(Ptr*)msg;
a = new TSrvMsgReply(nmsg);
break;
}
case REBIND_MSG: {
SPtr<TSrvMsgRebind> nmsg=(Ptr*)msg;
a = new TSrvMsgReply(nmsg);
break;
}
case DECLINE_MSG: {
SPtr<TSrvMsgDecline> nmsg=(Ptr*)msg;
a = new TSrvMsgReply(nmsg);
break;
}
case RELEASE_MSG: {
SPtr<TSrvMsgRelease> nmsg=(Ptr*)msg;
a = new TSrvMsgReply(nmsg);
break;
}
case INFORMATION_REQUEST_MSG : {
SPtr<TSrvMsgInfRequest> nmsg=(Ptr*)msg;
a = new TSrvMsgReply(nmsg);
break;
}
case LEASEQUERY_MSG: {
int iface = msg->getIface();
if (!SrvCfgMgr().getIfaceByID(iface) ||
!SrvCfgMgr().getIfaceByID(iface)->leaseQuerySupport()) {
Log(Error) << "LQ: LeaseQuery message received on " << iface
<< " interface, but it is not supported there." << LogEnd;
return;
}
Log(Debug) << "LQ: LeaseQuery received, preparing RQ_REPLY" << LogEnd;
SPtr<TSrvMsgLeaseQuery> lq = (Ptr*)msg;
a = new TSrvMsgLeaseQueryReply(lq);
break;
}
case RECONFIGURE_MSG:
case ADVERTISE_MSG:
case REPLY_MSG:
{
Log(Warning) << "Invalid message type received: " << msg->getType()
<< LogEnd;
break;
}
case RELAY_FORW_MSG: // They should be decapsulated earlier
case RELAY_REPL_MSG:
default:
{
Log(Warning)<< "Message type " << msg->getType()
<< " not supported." << LogEnd;
break;
}
}
if (a && !a->isDone()) {
SPtr<TSrvMsg> answ = (Ptr*)a;
// Send the packet
sendPacket(answ);
// Call notify script
SrvIfaceMgr().notifyScripts(SrvCfgMgr().getScriptName(), q, a);
}
// save DB state regardless of action taken
SrvAddrMgr().dump();
SrvCfgMgr().dump();
}
void TSrvTransMgr::relayMsg(SPtr<TSrvMsg> msg)
{
if (!msg->check()) {
// proper warnings will be printed in the check() method, if necessary.
// Log(Warning) << "Invalid message received." << LogEnd;
return;
}
// LEASE ASSIGN STEP 1: Evaluate defined expressions (client classification)
// Ask NodeClietSpecific to analyse the message
NodeClientSpecific::analyseMessage(msg);
// LEASE ASSIGN STEP 2: Is this client supported?
// is this client supported? (white-list, black-list)
if (!SrvCfgMgr().isClntSupported(msg)) {
return;
}
/// @todo remove (or at least disable by default) answer buffering mechanism
SPtr<TSrvMsg> answ;
Log(Debug) << MsgLst.count() << " answers buffered.";
MsgLst.first();
while(answ=(Ptr*)MsgLst.get())
{
if (answ->getTransID()==msg->getTransID() && msg->getType() != RELEASE_MSG ) {
Log(Cont) << " Old reply with transID=" << hex << msg->getTransID()
<< dec << " found. Sending old reply." << LogEnd;
answ->send();
return;
}
}
Log(Cont) << " Old reply for transID=" << hex << msg->getTransID()
<< " not found. Generating new answer." << dec << LogEnd;
SPtr<TMsg> q, a; // question and answer
q = (Ptr*) msg;
switch(msg->getType()) {
case SOLICIT_MSG: {
SPtr<TSrvCfgIface> ptrCfgIface = SrvCfgMgr().getIfaceByID(msg->getIface());
if (msg->getOption(OPTION_RAPID_COMMIT)) {
if (!ptrCfgIface->getRapidCommit()) {
Log(Info) << "SOLICIT with RAPID-COMMIT received, but RAPID-COMMIT is disabled on "
<< ptrCfgIface->getName() << " interface." << LogEnd;
a = new TSrvMsgAdvertise((Ptr*)msg);
} else {
SPtr<TSrvMsgSolicit> nmsg = (Ptr*)msg;
a = new TSrvMsgReply(nmsg);
}
} else {
a = new TSrvMsgAdvertise( (Ptr*) msg);
}
break;
}
case REQUEST_MSG: {
SPtr<TSrvMsgRequest> nmsg = (Ptr*)msg;
a = new TSrvMsgReply(nmsg);
break;
}
case CONFIRM_MSG: {
SPtr<TSrvMsgConfirm> nmsg=(Ptr*)msg;
a = new TSrvMsgReply(nmsg);
break;
}
case RENEW_MSG: {
SPtr<TSrvMsgRenew> nmsg=(Ptr*)msg;
a = new TSrvMsgReply(nmsg);
break;
}
case REBIND_MSG: {
SPtr<TSrvMsgRebind> nmsg=(Ptr*)msg;
a = new TSrvMsgReply(nmsg);
break;
}
case DECLINE_MSG: {
SPtr<TSrvMsgDecline> nmsg=(Ptr*)msg;
a = new TSrvMsgReply(nmsg);
break;
}
case RELEASE_MSG: {
SPtr<TSrvMsgRelease> nmsg=(Ptr*)msg;
a = new TSrvMsgReply(nmsg);
break;
}
case INFORMATION_REQUEST_MSG : {
SPtr<TSrvMsgInfRequest> nmsg=(Ptr*)msg;
a = new TSrvMsgReply(nmsg);
break;
}
case LEASEQUERY_MSG: {
if(!msg->Bulk) {
int iface = msg->getIface();
if (!SrvCfgMgr().getIfaceByID(iface) || !SrvCfgMgr().getIfaceByID(iface)->leaseQuerySupport() ) {
Log(Error) << "LQ: LeaseQuery message received on " << iface
<< " interface, but it is not supported there." << LogEnd;
return;
}
Log(Debug) << "LQ: LeaseQuery received, preparing RQ_REPLY" << LogEnd;
SPtr<TSrvMsgLeaseQuery> lq = (Ptr*) msg;
a = new TSrvMsgLeaseQueryReply(lq);
//TSrvMsgLeaseQuery(int iface, SPtr<TIPv6Addr> addr, char* buf,
// int bufSize,int MsgType, bool tcp = false);
break;
} else {
int iface = msg->getIface();
if (!SrvCfgMgr().getIfaceByID(iface) || (!SrvCfgMgr().getIfaceByID(iface)->bulkLeaseQuerySupport()) ) {
Log(Error) << "BLQ: LeaseQuery message received on " << iface
<< " interface, but it is not supported there." << LogEnd;
return;
}
Log(Debug) << "BLQ: Bulk LeaseQuery received, preparing RQ_REPLY" << LogEnd;
SPtr<TSrvMsgLeaseQuery> lq = (Ptr*) msg;
a = new TSrvMsgLeaseQueryReply(lq);
//TSrvMsgLeaseQuery(int iface, SPtr<TIPv6Addr> addr, char* buf,
// int bufSize,int MsgType, bool tcp = false);
break;
}
}
case RECONFIGURE_MSG:
case ADVERTISE_MSG:
case REPLY_MSG:
{
Log(Warning) << "Invalid message type received: " << msg->getType()
<< LogEnd;
break;
}
case RELAY_FORW_MSG: // They should be decapsulated earlier
case RELAY_REPL_MSG:
default:
{
Log(Warning)<< "Message type " << msg->getType()
<< " not supported." << LogEnd;
break;
}
}
if (a) {
/// @todo: messages should not call send() in their ctors, send should be done here
MsgLst.append((Ptr*)a);
SrvIfaceMgr().notifyScripts(SrvCfgMgr().getScriptName(), q, a);
}
// save DB state regardless of action taken
SrvAddrMgr().dump();
SrvCfgMgr().dump();
}
