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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
*
* $Id: ClntMsgRenew.cpp,v 1.23 2009-03-24 23:17:17 thomson Exp $
*
*/
#include "ClntMsgRenew.h"
#include "DHCPConst.h"
#include "ClntOptIA_NA.h"
#include "ClntOptIA_PD.h"
#include "OptDUID.h"
#include "ClntOptOptionRequest.h"
#include "ClntOptStatusCode.h"
#include "Logger.h"
#include "ClntTransMgr.h"
#include "ClntIfaceMgr.h"
#include <cmath>
TClntMsgRenew::TClntMsgRenew(List(TAddrIA) IALst,
List(TAddrIA) PDLst)
:TClntMsg(0, SPtr<TIPv6Addr>(), RENEW_MSG)
{
// set transmission parameters
IRT=REN_TIMEOUT;
MRT=REN_MAX_RT;
MRC=0;
RT=0;
if (IALst.count() + PDLst.count() == 0) {
Log(Error) << "Unable to send RENEW. No IAs and no PDs defined." << LogEnd;
IsDone = true;
return;
}
// retransmit until T2 has been reached or any address has expired
//it should be the same for all IAs
unsigned int timeout = DHCPV6_INFINITY;
SPtr<TAddrIA> ia;
if (IALst.count()) {
IALst.first();
ia = IALst.get();
} else {
PDLst.first();
ia = PDLst.get();
}
if (!ia) {
Log(Error) << "No IA to renew. Something is wrong." << LogEnd;
IsDone = true;
return;
}
MRD = ia->getT2Timeout();
Iface = ia->getIfindex();
PeerAddr_ = ia->getSrvAddr();
if (RT>MRD)
RT=MRD;
// store our DUID
Options.push_back(new TOptDUID(OPTION_CLIENTID, ClntCfgMgr().getDUID(), this));
// and say who's this message is for
if (IALst.count())
Options.push_back( new TOptDUID(OPTION_SERVERID,IALst.getFirst()->getDUID(),this));
else
Options.push_back( new TOptDUID(OPTION_SERVERID,PDLst.getFirst()->getDUID(),this));
//Store all IAs to renew
IALst.first();
while(ia=IALst.get()) {
if (timeout > ia->getT2Timeout())
timeout = ia->getT2Timeout();
Options.push_back(new TClntOptIA_NA(ia,this));
}
PDLst.first();
while (ia=PDLst.get()) {
if (timeout > ia->getT2Timeout())
timeout = ia->getT2Timeout();
Options.push_back(new TClntOptIA_PD(ia, this));
}
appendRequestedOptions();
appendAuthenticationOption();
IsDone = false;
send();
}
void TClntMsgRenew::answer(SPtr<TClntMsg> Reply)
{
SPtr<TOpt> opt;
unsigned int iaCnt = 0;
// get DUID
SPtr<TOptDUID> srvDUID;
srvDUID = (Ptr*) this->getOption(OPTION_SERVERID);
SPtr<TClntOptOptionRequest> ptrOptionReqOpt=(Ptr*)getOption(OPTION_ORO);
Reply->firstOption();
// for each option in message... (there should be only one IA option, as we send
// separate RENEW for each IA, but we check all options anyway)
while ( opt = Reply->getOption() ) {
switch (opt->getOptType()) {
case OPTION_IA_NA: {
iaCnt++;
SPtr<TClntOptIA_NA> ptrOptIA = (Ptr*)opt;
if (ptrOptIA->getStatusCode()!=STATUSCODE_SUCCESS) {
if(ptrOptIA->getStatusCode() == STATUSCODE_NOBINDING){
ClntTransMgr().sendRequest(Options, Iface);
IsDone = true;
return;
}else{
SPtr<TClntOptStatusCode> status = (Ptr*) ptrOptIA->getOption(OPTION_STATUS_CODE);
Log(Warning) << "Received IA (iaid=" << ptrOptIA->getIAID() << ") with status code " <<
StatusCodeToString(status->getCode()) << ": "
<< status->getText() << LogEnd;
break;
}
}
ptrOptIA->setContext(srvDUID->getDUID(), SPtr<TIPv6Addr>(), Reply->getIface());
ptrOptIA->doDuties();
break;
}
case OPTION_IA_PD: {
iaCnt++;
SPtr<TClntOptIA_PD> pd = (Ptr*) opt;
if (pd->getStatusCode() != STATUSCODE_SUCCESS) {
if(pd->getStatusCode() == STATUSCODE_NOBINDING){
ClntTransMgr().sendRequest(Options,Iface);
IsDone = true;
return;
}
else{
SPtr<TClntOptStatusCode> status = (Ptr*) pd->getOption(OPTION_STATUS_CODE);
Log(Warning) << "Received PD (iaid=" << pd->getIAID() << ") with status code " <<
StatusCodeToString(status->getCode()) << ": "
<< status->getText() << LogEnd;
break;
}
}
pd->setContext(srvDUID->getDUID(), SPtr<TIPv6Addr>(), (TMsg*)this);
pd->doDuties();
break;
}
case OPTION_ORO:
case OPTION_RELAY_MSG:
case OPTION_INTERFACE_ID:
case OPTION_IAADDR:
case OPTION_RECONF_MSG:
Log(Warning) << "Illegal option (" << opt->getOptType()
<< ") in received REPLY message." << LogEnd;
break;
default:
// what to do with unknown/other options? execute them
opt->setParent(this);
opt->doDuties();
}
}
//Here we received answer from our server, which updated the "whole information"
//There is no use to send Rebind even if server realesed some addresses/IAs
//in such a case new Solicit message should be sent
IsDone = true;
}
/**
* @brief changes IA state to not cofigured.
*
* @param iaid
*/
void TClntMsgRenew::releaseIA(long iaid)
{
SPtr<TAddrIA> ia = ClntAddrMgr().getIA(iaid);
if(ia){
ia->setState(STATE_NOTCONFIGURED);
}
}
void TClntMsgRenew::doDuties()
{
/// @todo: increase RT from REN_TIMEOUT to REN_MAX_RT
// should we send RENEW once more or start sending REBIND
if (!MRD)
{
Log(Notice) << "RENEW remains unanswered and timeout T2 reached, so REBIND will be sent." << LogEnd;
ClntTransMgr().sendRebind(Options,getIface());
IsDone = true;
return;
}
send();
}
bool TClntMsgRenew::check()
{
// this should never happen
return false;
}
std::string TClntMsgRenew::getName() const {
return "RENEW";
}
TClntMsgRenew::~TClntMsgRenew() {
}
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