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/*
* Dibbler - a portable DHCPv6
*
* authors: Tomasz Mrugalski <thomson@klub.com.pl>
* Marek Senderski <msend@o2.pl>
* changes: Krzysztof Wnuk <keczi@poczta.onet.pl>
* Michal Kowalczuk <michal@kowalczuk.eu>
*
* released under GNU GPL v2 only licence
*
*/
#include "ClntMsgRelease.h"
#include "DHCPConst.h"
#include "SmartPtr.h"
#include "Container.h"
#include "AddrIA.h"
#include "OptDUID.h"
#include "ClntCfgMgr.h"
#include "ClntOptIA_NA.h"
#include "ClntOptTA.h"
#include "ClntOptIA_PD.h"
#include <cmath>
#include "Logger.h"
#include "ClntAddrMgr.h"
#include "AddrMgr.h"
#include "AddrIA.h"
#include "AddrAddr.h"
using namespace std;
/**
* create RELEASE message
*
* @param iface
* @param addr
* @param iaLst - IA_NA list, which are served by on server on one link
* @param ta - IA_TA to be released
* @param pdLst - IA_PD list to be released
*/
TClntMsgRelease::TClntMsgRelease(int iface, SPtr<TIPv6Addr> addr,
List(TAddrIA) iaLst,
SPtr<TAddrIA> ta,
List(TAddrIA) pdLst)
:TClntMsg(iface, addr, RELEASE_MSG)
{
SPtr<TDUID> srvDUID;
IRT=REL_TIMEOUT;
MRT=0;
MRC=REL_MAX_RC;
MRD=0;
RT=0;
// obtain IA, TA or PD, so server DUID can be obtained
SPtr<TAddrIA> x;
if (iaLst.count()) {
iaLst.first();
x = iaLst.get();
}
if (!x)
x = ta;
if (!x) {
pdLst.first();
x = pdLst.get();
}
if (!x) {
Log(Error) << "Unable to send RELEASE. No IA, TA or PD provided." << LogEnd;
this->IsDone = true;
return;
}
if (!x->getDUID()) {
Log(Error) << "Unable to send RELEASE. Unable to find DUID. " << LogEnd;
this->IsDone = true;
return;
}
srvDUID = x->getDUID();
Options.push_back(new TOptDUID(OPTION_SERVERID, srvDUID,this));
Options.push_back(new TOptDUID(OPTION_CLIENTID, ClntCfgMgr().getDUID(),this));
// --- RELEASE IA ---
iaLst.first();
while(x=iaLst.get()) {
Options.push_back(new TClntOptIA_NA(x,this));
SPtr<TAddrAddr> ptrAddr;
SPtr<TClntIfaceIface> ptrIface;
ptrIface = (Ptr*)ClntIfaceMgr().getIfaceByID(x->getIfindex());
if (!ptrIface) {
Log(Warning) << "Unable to find interface with ifindex "
<< x->getIfindex() << " while creating RELEASE." << LogEnd;
continue;
}
x->firstAddr();
while (ptrAddr = x->getAddr()) {
ptrIface->delAddr(ptrAddr->get(), ptrAddr->getPrefix());
}
// --- DNS Update ---
SPtr<TIPv6Addr> dns = x->getFQDNDnsServer();
if (dns) {
string fqdn = ptrIface->getFQDN();
ClntIfaceMgr().fqdnDel(ptrIface, x, fqdn);
}
// --- DNS Update ---
}
// --- RELEASE TA ---
if (ta) {
Options.push_back(new TClntOptTA(ta, this));
SPtr<TClntIfaceIface> ptrIface;
ptrIface = (Ptr*)ClntIfaceMgr().getIfaceByID(ta->getIfindex());
if (ptrIface) {
SPtr<TAddrAddr> addr;
ta->firstAddr();
while (addr = ta->getAddr()) {
ptrIface->delAddr(addr->get(), addr->getPrefix());
}
} else {
Log(Warning) << "Unable to find interface with ifindex "
<< ta->getIfindex() << " while creating RELEASE." << LogEnd;
}
}
// --- RELEASE PD ---
SPtr<TAddrIA> pd;
pdLst.first();
while(pd=pdLst.get()) {
SPtr<TClntOptIA_PD> pdOpt = new TClntOptIA_PD(pd,this);
Options.push_back( (Ptr*)pdOpt );
pdOpt->setContext(srvDUID, addr, this);
pdOpt->delPrefixes();
ClntAddrMgr().delPD(pd->getIAID() );
}
appendElapsedOption();
appendAuthenticationOption();
IsDone = false;
send();
}
void TClntMsgRelease::answer(SPtr<TClntMsg> rep)
{
SPtr<TOptDUID> rspSrvID = (Ptr*) rep->getOption(OPTION_SERVERID);
SPtr<TOptDUID> msgSrvID = (Ptr*) getOption(OPTION_SERVERID);
if (!rspSrvID) {
Log(Warning) << "Received reply to RELEASE without SERVER-ID option." << LogEnd;
}
if (!msgSrvID) {
Log(Error) << "Sent RELEASE did not contain SERVER-ID. That seems to be my fault. Sorry." << LogEnd;
}
if (rspSrvID && msgSrvID &&
(!(*msgSrvID->getDUID()==*rspSrvID->getDUID()))) {
Log(Error) << "Internal error. RELEASE sent to server with DUID=" << msgSrvID->getPlain()
<< ", but response returned with " << rspSrvID->getPlain() << LogEnd;
}
IsDone = true; // we don't care. We sent release, we are shutting down anyway.
}
void TClntMsgRelease::doDuties() {
if (RC!=MRC)
send();
else
IsDone=true;
return;
}
bool TClntMsgRelease::check() {
return false;
}
std::string TClntMsgRelease::getName() const {
return "RELEASE";
}
TClntMsgRelease::~TClntMsgRelease() {
}
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