/**
* method is used to process received REPLY message (as an answer for REQUEST or
* as an answer for SOLICIT with RAPID COMMIT option)
*
* @param reply
*/
void TClntMsg::answer(SPtr<TClntMsg> reply)
{
SPtr<TOptDUID> ptrDUID;
ptrDUID = (Ptr*) reply->getOption(OPTION_SERVERID);
if (!ptrDUID) {
Log(Warning) << "Received REPLY message without SERVER ID option. Message ignored." << LogEnd;
return;
}
SPtr<TDUID> duid = ptrDUID->getDUID();
SPtr<TClntIfaceIface> iface = (Ptr*)ClntIfaceMgr().getIfaceByID(getIface());
if (!iface) {
Log(Error) << "Unable to find physical interface with ifindex=" << getIface() << LogEnd;
return;
}
SPtr<TClntCfgIface> cfgIface = ClntCfgMgr().getIface( getIface() );
if (!cfgIface) {
Log(Error) << "Unable to find configuration interface with ifindex=" << getIface() << LogEnd;
}
// analyse all options received
SPtr<TOpt> option;
// Check authentication first. If the checks fail, we need to drop the whole message
// without using its contents.
if (!reply->checkReceivedAuthOption()) {
Log(Warning) << "AUTH: AUTH option verification failed. Ignoring message." << LogEnd;
return;
}
// find ORO in received options
SPtr<TClntOptOptionRequest> optORO = (Ptr*) this->getOption(OPTION_ORO);
reply->firstOption();
while (option = reply->getOption() ) {
if (optORO)
optORO->delOption(option->getOptType()); // delete received option from ORO
switch (option->getOptType())
{
case OPTION_IA_NA:
{
SPtr<TClntOptIA_NA> clntOpt = (Ptr*)option;
if (clntOpt->getStatusCode()!=STATUSCODE_SUCCESS) {
Log(Warning) << "Received IA (IAID=" << clntOpt->getIAID() << ") with non-success status:"
<< clntOpt->getStatusCode() << ", IA ignored." << LogEnd;
break;
}
// configure received IA
clntOpt->setContext(duid, 0/* srvAddr used is unicast */, this->Iface);
clntOpt->doDuties();
// delete that IA from request list
for (TOptList::iterator requestOpt = Options.begin(); requestOpt!=Options.end(); ++requestOpt)
{
if ( (*requestOpt)->getOptType()!=OPTION_IA_NA)
continue;
SPtr<TClntOptIA_NA> ptrIA = (Ptr*) (*requestOpt);
if ( ptrIA->getIAID() == clntOpt->getIAID() )
{
requestOpt = Options.erase(requestOpt);
break;
}
}
// delete request for IA, if it was mentioned in Option Request
if ( optORO && optORO->isOption(OPTION_IA_NA) )
optORO->delOption(OPTION_IA_NA);
break;
}
case OPTION_IA_TA:
{
SPtr<TClntOptTA> ta = (Ptr*) option;
if (ta->getStatusCode()!=STATUSCODE_SUCCESS) {
Log(Warning) << "Received TA (IAID=" << ta->getIAID() << ") with non-success status:"
<< ta->getStatusCode() << ", TA ignored." << LogEnd;
break;
}
SPtr<TOpt> requestOpt;
// delete that TA from request list
for (TOptList::iterator requestOpt = Options.begin(); requestOpt!=Options.end(); ++requestOpt)
{
if ( (*requestOpt)->getOptType()!=OPTION_IA_TA)
continue;
SPtr<TClntOptTA> ptrTA = (Ptr*) (*requestOpt);
if ( ta->getIAID() == ptrTA->getIAID() )
{
requestOpt = Options.erase(requestOpt);
break;
}
}
ta->setIface(Iface);
ta->doDuties();
break;
}
case OPTION_IA_PD:
{
SPtr<TClntOptIA_PD> pd = (Ptr*) option;
if (pd->getStatusCode()!=STATUSCODE_SUCCESS) {
Log(Warning) << "Received PD (PDAID=" << pd->getIAID() << ") with non-success status:"
<< pd->getStatusCode() << ", PD ignored." << LogEnd;
break;
}
if (!pd->getOption(OPTION_IAPREFIX)) {
Log(Notice) << "Received IA_PD without prefixes, ignoring." << LogEnd;
break;
}
bool pdOk = true;
int prefixCount = pd->countPrefixes();
pd->firstPrefix();
SPtr<TClntOptIAPrefix> ppref;
while (ppref = pd->getPrefix()) {
if (!ppref->isValid()) {
Log(Warning) << "Option IA_PREFIX from IA_PD " <<
pd->getIAID() << " is not valid." << LogEnd;
// RFC 3633, section 10:
// A requesting router discards any prefixes for which the
// preferred lifetime is greater than the valid lifetime.
pd->deletePrefix(ppref);
prefixCount--;
if (!prefixCount) {
// ia_pd hasn't got any valid prefixes.
if (ClntCfgMgr().insistMode()) {
// if insist-mode is enabled and one of received
// pd's has no valid prefixes, answer is rejected.
pdOk = false;
}
break;
}
}
}
if (!pdOk) {
break;
}
// configure received PD
pd->setContext(duid, 0/* srvAddr used in unicast */, this);
pd->doDuties();
// delete that PD from request list
for (TOptList::iterator requestOpt = Options.begin(); requestOpt!=Options.end(); ++requestOpt)
{
if ( (*requestOpt)->getOptType()!=OPTION_IA_PD)
continue;
SPtr<TClntOptIA_PD> reqPD = (Ptr*) (*requestOpt);
if ( pd->getIAID() == reqPD->getIAID() )
{
requestOpt = Options.erase(requestOpt);
break;
}
}
// delete request for PD, if it was mentioned in Option Request
if ( optORO && optORO->isOption(OPTION_IA_PD) )
optORO->delOption(OPTION_IA_PD);
break;
}
case OPTION_DNS_SERVERS:
{
SPtr<TOptAddrLst> dnsservers = (Ptr*) option;
cfgIface->setDNSServerState(STATE_CONFIGURED);
iface->setDNSServerLst(duid, reply->getRemoteAddr(), dnsservers->getAddrLst());
break;
}
case OPTION_NIS_SERVERS:
{
SPtr<TOptAddrLst> nisservers = (Ptr*) option;
cfgIface->setNISServerState(STATE_CONFIGURED);
iface->setNISServerLst(duid, reply->getRemoteAddr(), nisservers->getAddrLst());
break;
}
case OPTION_NISP_SERVERS:
{
SPtr<TOptAddrLst> nispservers = (Ptr*) option;
cfgIface->setNISPServerState(STATE_CONFIGURED);
iface->setNISPServerLst(duid, reply->getRemoteAddr(), nispservers->getAddrLst());
break;
}
case OPTION_SNTP_SERVERS:
{
SPtr<TOptAddrLst> ntpservers = (Ptr*) option;
cfgIface->setNTPServerState(STATE_CONFIGURED);
iface->setNTPServerLst(duid, reply->getRemoteAddr(), ntpservers->getAddrLst());
break;
}
case OPTION_SIP_SERVER_A:
{
SPtr<TOptAddrLst> sipservers = (Ptr*) option;
cfgIface->setSIPServerState(STATE_CONFIGURED);
iface->setSIPServerLst(duid, reply->getRemoteAddr(), sipservers->getAddrLst());
break;
}
case OPTION_DOMAIN_LIST:
{
SPtr<TOptDomainLst> domains = (Ptr*) option;
cfgIface->setDomainState(STATE_CONFIGURED);
iface->setDomainLst(duid, reply->getRemoteAddr(), domains->getDomainLst() );
break;
}
case OPTION_SIP_SERVER_D:
{
SPtr<TOptDomainLst> sipdomains = (Ptr*) option;
cfgIface->setSIPDomainState(STATE_CONFIGURED);
iface->setSIPDomainLst(duid, reply->getRemoteAddr(), sipdomains->getDomainLst() );
break;
}
case OPTION_NIS_DOMAIN_NAME:
{
SPtr<TOptDomainLst> nisdomain = (Ptr*) option;
List(string) domains = nisdomain->getDomainLst();
if (domains.count() == 1) {
cfgIface->setNISDomainState(STATE_CONFIGURED);
iface->setNISDomain(duid, reply->getRemoteAddr(), nisdomain->getDomain());
} else {
Log(Warning) << "Malformed NIS Domain option received. " << domains.count()
<< " domain(s) received, expected exactly 1." << LogEnd;
cfgIface->setNISDomainState(STATE_FAILED);
}
break;
}
case OPTION_NISP_DOMAIN_NAME:
{
SPtr<TOptDomainLst> nispdomain = (Ptr*) option;
List(string) domains = nispdomain->getDomainLst();
if (domains.count() == 1) {
cfgIface->setNISPDomainState(STATE_CONFIGURED);
iface->setNISPDomain(duid, reply->getRemoteAddr(), nispdomain->getDomain());
} else {
Log(Warning) << "Malformed NIS+ Domain option received. " << domains.count()
<< " domain(s) received, expected exactly 1." << LogEnd;
cfgIface->setNISDomainState(STATE_FAILED);
}
break;
}
#ifdef MOD_REMOTE_AUTOCONF
case OPTION_NEIGHBORS:
{
SPtr<TOptAddrLst> neighbors = (Ptr*) option;
ClntTransMgr().updateNeighbors(reply->getIface(), neighbors);
break;
}
#endif
case OPTION_IAADDR:
Log(Warning) << "Option OPTION_IAADDR misplaced." << LogEnd;
break;
default:
{
SPtr<TOpt> requestOpt;
if ( optORO && (optORO->isOption(option->getOptType())) )
optORO->delOption(option->getOptType());
//Log(Debug) << "Setting up option " << option->getOptType() << "." << LogEnd;
if (!option->doDuties()) {
Log(Warning) << "Setting option " << option->getOptType() << " failed." << LogEnd;
// do nothing about it
}
// find options specified in this message
firstOption();
while ( requestOpt = getOption() ) {
if ( requestOpt->getOptType() == option->getOptType() )
{
delOption(requestOpt->getOptType());
}//if
}//while
}
} // switch
}
//Options and IAs serviced by server are removed from requestOptions list
SPtr<TOpt> requestOpt;
firstOption();
bool iaLeft = false;
bool taLeft = false;
bool pdLeft = false;
while ( requestOpt = getOption() ) {
if (requestOpt->getOptType() == OPTION_IA_NA) iaLeft = true;
if (requestOpt->getOptType() == OPTION_IA_TA) taLeft = true;
if (requestOpt->getOptType() == OPTION_IA_PD) pdLeft = true;
}
// taLeft = false;
if (iaLeft || taLeft || pdLeft) {
// send new Request to another server
Log(Notice) << "There are still " << (iaLeft?"some IA(s)":"")
<< (taLeft?"TA":"") << (pdLeft?"some PD(s)":"") << " to configure." << LogEnd;
ClntTransMgr().sendRequest(this->Options, this->Iface);
} else {
if (optORO)
optORO->delOption(OPTION_ADDRPARAMS); // don't insist on getting ADDR-PARAMS
if ( optORO && (optORO->count()) )
{
Log(Warning) << "All IA(s), TA and PD(s) has been configured, but some options (";
for (int i=0; i< optORO->count(); i++)
Log(Cont) << optORO->getReqOpt(i) << " ";
Log(Cont) << ") were not assigned." << LogEnd;
if (ClntCfgMgr().insistMode()) {
Log(Notice) << "Insist-mode enabled, sending INF-REQUEST." << LogEnd;
ClntTransMgr().sendInfRequest(this->Options, this->Iface);
} else {
Log(Notice) << "Insist-mode disabled, giving up (not sending INF-REQUEST)." << LogEnd;
/// @todo: set proper options to FAILED state
}
}
}
IsDone = true;
return;
}
