void TRelMsg::decodeOpts(char * buf, int bufSize) {
int pos=0;
SPtr<TOpt> ptr;
while (pos<bufSize) {
if (pos+4>bufSize) {
Log(Error) << "Message " << MsgType << " truncated. There are " << (bufSize-pos)
<< " bytes left to parse. Bytes ignored." << LogEnd;
break;
}
unsigned short code = readUint16(buf+pos);
pos += sizeof(uint16_t);
unsigned short length = readUint16(buf+pos);
pos += sizeof(uint16_t);
if (pos+length>bufSize) {
Log(Error) << "Invalid option (type=" << code << ", len=" << length
<< " received (msgtype=" << MsgType << "). Message dropped." << LogEnd;
IsDone = true;
return;
}
if (!allowOptInMsg(this->MsgType,code)) {
Log(Warning) << "Option " << code << " not allowed in message type="<< MsgType <<". Ignoring." << LogEnd;
pos+=length;
continue;
}
if (!allowOptInOpt(this->MsgType,0,code)) {
Log(Warning) <<"Option " << code << " can't be present in message (type="
<< MsgType <<") directly. Ignoring." << LogEnd;
pos+=length;
continue;
}
ptr = 0;
switch (code) {
case OPTION_RELAY_MSG:
ptr = new TRelOptRelayMsg(buf+pos,length,this);
break;
case OPTION_INTERFACE_ID:
ptr = new TRelOptInterfaceID(buf+pos,length,this);
break;
case OPTION_CLIENTID:
ptr = new TOptDUID(code, buf+pos, length, this);
break;
default:
ptr = new TRelOptGeneric(code, buf+pos, length, this);
break;
}
if ( (ptr) && (ptr->isValid()) )
Options.push_back( ptr );
else
Log(Warning) << "Option " << code << " is invalid. Option ignored." << LogEnd;
pos+=length;
}
}
TClntOptIAPrefix::TClntOptIAPrefix( char * buf, int bufSize, TMsg* parent)
:TOptIAPrefix(buf, bufSize, parent)
{
SPtr<TOpt> opt = 0;
int pos=0;
int MsgType = 0;
if (parent)
MsgType = parent->getType();
while(pos<bufSize)
{
if (pos+4>bufSize) {
Log(Error) << "Message " << MsgType << " truncated. There are " << (bufSize-pos)
<< " bytes left to parse. Bytes ignored." << LogEnd;
break;
}
unsigned short code = readUint16(buf+pos);
pos += sizeof(uint16_t);
unsigned short length = readUint16(buf+pos);
pos+= sizeof(uint16_t);
if (pos+length>bufSize) {
Log(Error) << "Invalid option (type=" << code << ", len=" << length
<< " received (msgtype=" << MsgType << "). Message dropped." << LogEnd;
return;
}
if (allowOptInOpt(parent->getType(),OPTION_IAPREFIX,code))
{
switch (code)
{
case OPTION_STATUS_CODE:
opt = new TClntOptStatusCode(buf+pos,length, this->Parent);
break;
default:
Log(Warning) <<"Option opttype=" << code<< "not supported "
<<" in field of message (type="<< parent->getType()
<<") in this version of client."<<LogEnd;
break;
}
if((opt)&&(opt->isValid()))
SubOptions.append(opt);
}
pos += length;
}
}
/**
* Used to create object from received message
*
* @param buf
* @param bufsize
* @param parent
*/
TClntOptIA_PD::TClntOptIA_PD(char * buf,int bufsize, TMsg* parent)
:TOptIA_PD(buf,bufsize, parent)
{
int pos=0;
while(pos<bufsize)
{
int code=buf[pos]*256+buf[pos+1];
pos+=2;
int length=buf[pos]*256+buf[pos+1];
pos+=2;
if ((code>0)&&(code<=26))
{
if(allowOptInOpt(parent->getType(),OPTION_IA_PD,code))
{
SPtr<TOpt> opt= SPtr<TOpt>();
switch (code)
{
case OPTION_IAPREFIX:
SubOptions.append( new TClntOptIAPrefix(buf+pos,length,this->Parent));
break;
case OPTION_STATUS_CODE:
SubOptions.append( new TClntOptStatusCode(buf+pos,length,this->Parent));
break;
default:
Log(Warning) << "Option opttype=" << code<< "not supported "
<< " in field of message (type="<< parent->getType()
<< ") in this version of server."<<LogEnd;
break;
}
if((opt)&&(opt->isValid()))
SubOptions.append(opt);
} else
Log(Warning) << "Illegal option received, opttype=" << code
<< " in field options of IA_PD option" << LogEnd;
} else {
Log(Warning) << "Unknown option in option IA_NA(optType="
<< code << "). Option ignored." << LogEnd;
};
pos+=length;
}
clearContext();
}
TSrvOptIAAddress::TSrvOptIAAddress( char * buf, int bufsize, TMsg* parent)
:TOptIAAddress(buf,bufsize, parent)
{
int pos=0;
while(pos<bufsize)
{
uint16_t code = readUint16(buf+pos);
pos += sizeof(uint16_t);
uint16_t length = readUint16(buf+pos);
pos += sizeof(uint16_t);
if ((code>0)&&(code<=24))
{
if(allowOptInOpt(parent->getType(),OPTION_IAADDR,code))
{
SPtr<TOpt> opt;
opt.reset();
switch (code)
{
case OPTION_STATUS_CODE:
opt.reset(new TOptStatusCode(buf+pos, length, Parent));
break;
default:
Log(Warning) << "Option " << code << " not supported "
<<" in message (type="<< parent->getType() <<")." << LogEnd;
break;
}
if (opt && opt->isValid())
SubOptions.append(opt);
} else {
Log(Warning) << "Illegal option received, opttype=" << code
<< " in field options of IA_NA option" << LogEnd;
}
} else {
Log(Warning) <<"Unknown option in option IAADDR( optType="
<< code << "). Option ignored." << LogEnd;
};
pos += length;
}
}