/**
* Note: requestOptions list MUST NOT contain server DUID.
*/
void TClntTransMgr::sendRequest(TOptList requestOptions, int iface)
{
sortAdvertiseLst();
for (TOptList::iterator opt= requestOptions.begin();
opt!=requestOptions.end(); ++opt)
{
if (!allowOptInMsg(REQUEST_MSG, (*opt)->getOptType()))
opt = requestOptions.erase(opt);
}
SPtr<TClntMsg> ptr = new TClntMsgRequest(requestOptions, iface);
Transactions.append( (Ptr*)ptr );
}
bool TSrvTransMgr::unicastCheck(SPtr<TSrvMsg> msg) {
// If it's relayed message, then it's ok
if (!msg->RelayInfo_.empty())
return true;
// Ok, we don't know what address it was received on.
// This must be one weird OS we're running on. Anyway, let's
// pretend it was not unicast.
if (!msg->getLocalAddr())
return true;
// All good, received on multicast
if (msg->getLocalAddr()->multicast())
return true;
// Received on unicast and it's not relayed. Do we have
// unicast support enabled on this interface?
SPtr<TSrvCfgIface> cfgIface = SrvCfgMgr().getIfaceByID(msg->getIface());
// That's weird! We don't have a configuration for this interface?
if (!cfgIface)
return true;
// Do we have unicast enabled on this interface? Yes => all is good.
if (cfgIface->getUnicast())
return true;
// Ok, so we've got a problem here. Unicast is forbidden and we
// received unicast traffic.
if (!SrvCfgMgr().dropUnicast()) {
Log(Warning) << "Received message on address " << msg->getLocalAddr()->getPlain()
<< " on interface " << cfgIface->getFullName()
<< ", but unicast is not allowed on this interface."
<< LogEnd;
return true;
}
TOptList options;
SPtr<TOpt> status(new TOptStatusCode(STATUSCODE_USEMULTICAST,
string("Please send your message to multicast, not to ")
+ msg->getLocalAddr()->getPlain(), NULL));
options.push_back(status);
// Message will be sent in the constructor
TSrvMsgReply(msg, options);
return false;
}
/// @brief Copies a list of forced options.
///
/// This method add a list of forced options. Forced options are the ones that
/// are sent to a client, regardless if client requested them or not.
///
/// @param forced list of forced options to be copied
void TSrvCfgOptions::addForcedOptions(const TOptList& forced) {
for (TOptList::const_iterator opt = forced.begin(); opt != forced.end(); ++opt)
ForcedOpts_.push_back(*opt);
}
/// @brief Copies a list of extra options.
///
/// Extra options are options that may be requested by a client. This list also
/// contains forced options (i.e. options that are sent regardless if client
/// asks for them or not).
///
/// @param extra list of options to be copied
void TSrvCfgOptions::addExtraOptions(const TOptList& extra) {
for (TOptList::const_iterator opt = extra.begin(); opt != extra.end(); ++opt)
ExtraOpts_.push_back(*opt);
}
bool TSrvMsgReply::handleConfirmOptions(TOptList & options) {
SPtr<TSrvCfgIface> cfgIface = SrvCfgMgr().getIfaceByID(Iface);
if (!cfgIface) {
Log(Crit) << "Msg received through not configured interface. "
"Somebody call an exorcist!" << LogEnd;
IsDone = true;
return false;
}
EAddrStatus onLink = ADDRSTATUS_YES;
int checkCnt = 0;
TOptList::iterator opt = options.begin();
while ( (opt!=options.end()) && (onLink==ADDRSTATUS_YES) ) {
switch ( (*opt)->getOptType()) {
case OPTION_IA_NA: {
SPtr<TSrvOptIA_NA> ia = (Ptr*) (*opt);
// now we check whether this IA exists in Server Address database or not.
SPtr<TOpt> opt;
ia->firstOption();
while ((opt = ia->getOption()) && (onLink == ADDRSTATUS_YES) ) {
if (opt->getOptType() != OPTION_IAADDR){
continue;
}
SPtr<TSrvOptIAAddress> optAddr = (Ptr*) opt;
onLink = cfgIface->confirmAddress(IATYPE_IA, optAddr->getAddr());
checkCnt++;
}
break;
}
case OPTION_IA_TA: {
SPtr<TSrvOptTA> ta = (Ptr*) (*opt);
SPtr<TOpt> opt;
ta->firstOption();
while (opt = ta->getOption() && (onLink == ADDRSTATUS_YES)) {
if (opt->getOptType() != OPTION_IAADDR)
continue;
SPtr<TSrvOptIAAddress> optAddr = (Ptr*) opt;
onLink = cfgIface->confirmAddress(IATYPE_TA, optAddr->getAddr());
checkCnt++;
}
break;
}
case OPTION_IA_PD: {
SPtr<TSrvOptIA_PD> ta = (Ptr*) (*opt);
SPtr<TOpt> opt;
ta->firstOption();
while (opt = ta->getOption() && (onLink == ADDRSTATUS_YES)) {
if (opt->getOptType() != OPTION_IAPREFIX)
continue;
SPtr<TSrvOptIAPrefix> optPrefix = (Ptr*) opt;
onLink = cfgIface->confirmAddress(IATYPE_PD, optPrefix->getPrefix());
checkCnt++;
}
break;
}
default:
handleDefaultOption(*opt);
break;
}
++opt;
}
if (!checkCnt) {
Log(Info) << "No addresses or prefixes in CONFIRM. Not sending reply." << LogEnd;
return false;
}
switch (onLink) {
case ADDRSTATUS_YES: {
SPtr <TOptStatusCode> ptrCode =
new TOptStatusCode(STATUSCODE_SUCCESS,
"Your addresses are correct for this link! Yay!",
this);
Options.push_back( (Ptr*) ptrCode);
return true;
}
case ADDRSTATUS_NO: {
SPtr <TOptStatusCode> ptrCode =
new TOptStatusCode(STATUSCODE_NOTONLINK,
"Sorry, those addresses are not valid for this link.",
this);
Options.push_back( (Ptr*) ptrCode );
return true;
}
default:
case ADDRSTATUS_UNKNOWN: {
Log(Info) << "Address/prefix being confirmed is outside of defined class,"
<< " but there is no subnet defined, so can't answer authoratively."
<< " Will not send answer." << LogEnd;
return false;
}
}
// should never get here
return false;
}
bool TSrvMsgReply::handleConfirmOptions(TOptList & options) {
SPtr<TSrvCfgIface> ptrIface = SrvCfgMgr().getIfaceByID( Iface );
if (!ptrIface) {
Log(Crit) << "Msg received through not configured interface. "
"Somebody call an exorcist!" << LogEnd;
this->IsDone = true;
return false;
}
bool OnLink = true;
int checkCnt = 0;
List(TSrvOptIA_NA) validIAs;
TOptList::iterator opt = options.begin();
while ( (opt!=options.end()) && OnLink ) {
switch ( (*opt)->getOptType()) {
case OPTION_IA_NA: {
SPtr<TSrvOptIA_NA> ia = (Ptr*) (*opt);
// now we check whether this IA exists in Server Address database or not.
SPtr<TOpt> subOpt;
unsigned long addrCnt = 0;
ia->firstOption();
while ( (subOpt = ia->getOption()) && (OnLink) ) {
if (subOpt->getOptType() != OPTION_IAADDR){
continue;
}
SPtr<TSrvOptIAAddress> optAddr = (Ptr*) subOpt;
Log(Debug) << "CONFIRM message: checking if " << optAddr->getAddr()->getPlain() << " is supported:";
if (!SrvCfgMgr().isIAAddrSupported(this->Iface, optAddr->getAddr())) {
Log(Cont) << "no." << LogEnd;
OnLink = false;
} else {
Log(Cont) << "yes." << LogEnd;
addrCnt++;
}
checkCnt++;
}
if (addrCnt) {
SPtr<TSrvOptIA_NA> tempIA = new TSrvOptIA_NA(ia, PeerAddr,
ClientDUID, Iface, addrCnt,CONFIRM_MSG, this);
validIAs.append(tempIA);
}
break;
}
case OPTION_IA_TA: {
SPtr<TSrvOptTA> ta = (Ptr*) (*opt);
// now we check whether this IA exists in Server Address database or not.
SPtr<TOpt> subOpt;
ta->firstOption();
while (subOpt = ta->getOption() && (OnLink)) {
if (subOpt->getOptType() != OPTION_IAADDR)
continue;
SPtr<TSrvOptIAAddress> optAddr = (Ptr*) subOpt;
if (!SrvCfgMgr().isTAAddrSupported(this->Iface, optAddr->getAddr())) {
OnLink = false;
}
checkCnt++;
}
break;
}
default:
handleDefaultOption( *opt);
break;
}
++opt;
}
if (!checkCnt) {
// no check
SPtr <TSrvOptStatusCode> ptrCode =
new TSrvOptStatusCode(STATUSCODE_NOTONLINK,
"No addresses checked. Did you send any?",
this);
Options.push_back( (Ptr*) ptrCode );
} else
if (!OnLink) {
// not-on-link
SPtr <TSrvOptStatusCode> ptrCode =
new TSrvOptStatusCode(STATUSCODE_NOTONLINK,
"Sorry, those addresses are not valid for this link.",
this);
Options.push_back( (Ptr*) ptrCode );
} else {
// success
SPtr <TSrvOptStatusCode> ptrCode =
new TSrvOptStatusCode(STATUSCODE_SUCCESS,
"Your addresses are correct for this link! Yay!",
this);
Options.push_back( (Ptr*) ptrCode);
if(validIAs.count()){
SPtr<TSrvOptIA_NA> ia;
validIAs.first();
while(ia=validIAs.get() ){
Options.push_back((Ptr*)ia );
}
}
}
return true;
}