/*
* Method checks whether client is supported and assigned addresses from any class
*/
bool TSrvCfgMgr::isClntSupported(SPtr<TDUID> duid, SPtr<TIPv6Addr> clntAddr, int iface, SPtr<TSrvMsg> msg)
{
SPtr<TSrvCfgIface> ptrIface;
firstIface();
while((ptrIface=getIface())&&(ptrIface->getID()!=iface)) ;
/** @todo: reject-client and accept-only does not work in stateless mode */
if (this->stateless())
return true;
int classCnt = 0;
if (ptrIface)
{
SPtr<TSrvCfgAddrClass> ptrClass;
ptrIface->firstAddrClass();
while(ptrClass=ptrIface->getAddrClass()) {
if (ptrClass->clntSupported(duid,clntAddr,msg))
return true;
classCnt++;
}
}
if (!classCnt) {
Log(Warning) << "There are no address class defined on the " << ptrIface->getFullName()
<< ". Maybe you are trying to configure clients on cascade relay interface? "
<< "If that is so, please define separate class on this interface, too." << LogEnd;
}
return false;
}
bool TSrvCfgMgr::validateConfig() {
SPtr<TSrvCfgIface> ptrIface;
if (0 == (this->countIface() + this->inactiveIfacesCnt())) {
Log(Crit) << "Config problem: No interface defined." << LogEnd;
return false;
}
firstIface();
while(ptrIface=getIface()) {
if (!this->validateIface(ptrIface))
return false;
}
return true;
}
QString MachineBridge::getIfaceFormattedMac(int iface)
{
return getIfaceFormattedMac(getIface(iface));
}
/*This function will receive the packet and forward it accordingly*/
void receiveforwardpkt(int sockfd,int index,BridgeEntry* bridgetable[],int clients[],fd_set* allset)
{
int num;
EtherPkt receivedpkt;
ARP_PKT arppkt;
IP_PKT ippkt;
int type;
int length;
int forward_index;
int counter;
memset(&receivedpkt,'0',sizeof(receivedpkt));
memset(&arppkt,'0',sizeof(arppkt));
memset(&ippkt,'0',sizeof(ippkt));
fprintf(stderr,"Started reading the packet\n");
num=read(sockfd,&receivedpkt.dst,18);
/*If any of the clients closed then do the cleaning operation*/
if (num==0)
{
fprintf(stderr,"Station or router closed");
clients[index]=-1;
FD_CLR(sockfd,allset);
return;
}
read(sockfd,&receivedpkt.src,18);
fprintf(stderr,"Destination Mac:%s ,Source Mac:%s\n",receivedpkt.dst,receivedpkt.src);
read(sockfd,(char *)&receivedpkt.type,sizeof(short));
read(sockfd,(char *)&receivedpkt.size,sizeof(short));
type=ntohs(receivedpkt.type);
if (!presentInbridgeTable(bridgetable,receivedpkt.src))
{
addTobridgeTable(bridgetable,receivedpkt.src,index);
}
displaytableinfo(bridgetable);
if (type==TYPE_IP_PKT)
{
fprintf(stderr,"Ip packet received\n");
read(sockfd,(char *)&ippkt.dstip,sizeof(IPAddr));
read(sockfd,(char *)&ippkt.srcip,sizeof(IPAddr));
read(sockfd,(char *)&ippkt.protocol,sizeof(short));
read(sockfd,(char *)&ippkt.sequenceno,sizeof(unsigned long));
read(sockfd,(char *)&ippkt.length,sizeof(short));
length=ntohs(ippkt.length);
memset(&ippkt.data,'\0',sizeof(ippkt.data));
read(sockfd,ippkt.data,length);
}
else if (type==TYPE_ARP_PKT)
{
fprintf(stderr,"ARP packet received\n");
read(sockfd,(char *)&arppkt.op,sizeof(short));
read(sockfd,(char *)&arppkt.srcip,sizeof(IPAddr));
read(sockfd,&arppkt.srcmac,18);
read(sockfd,(char *)&arppkt.dstip,sizeof(IPAddr));
read(sockfd,&arppkt.dstmac,18);
}
else
{
fprintf(stderr,"Unknown type packet received.Something wrong with reading\n");
return;
}
fprintf(stderr,"Finished reading the packet\n");
forward_index=getIface(bridgetable,receivedpkt.dst);
if (forward_index>-1)
{
forwardpacket(clients[forward_index],receivedpkt,ippkt,arppkt);
}
else
{
for(counter=0;counter<no_ports;counter++)
{
if (counter==index)
{
continue;
}
if (clients[counter]>=0)
{
forwardpacket(clients[counter],receivedpkt,ippkt,arppkt);
}
}
}
}
bool MachineBridge::setCableConnected(uint32_t iface, bool connected)
{
return setCableConnected(getIface(iface), connected);
}
bool MachineBridge::setAttachmentData(uint32_t iface, uint32_t attachmentType, QString qAttachmentData)
{
return setAttachmentData(getIface(iface), attachmentType, qAttachmentData);
}
bool MachineBridge::setIfaceMac(uint32_t iface, QString qMac)
{
return setIfaceMac(getIface(iface), qMac);
}
bool MachineBridge::setIfaceAttachmentType(uint32_t iface, uint32_t attachmentType)
{
return setIfaceAttachmentType(getIface(iface), attachmentType);
}
QString MachineBridge::getGenericDriver(uint32_t iface)
{
return getGenericDriver(getIface(iface));
}
bool MachineBridge::setIfaceEnabled(uint32_t iface, bool enabled)
{
return setIfaceEnabled(getIface(iface), enabled);
}
QString MachineBridge::getHostIface(uint32_t iface)
{
return getHostIface(getIface(iface));
}
QString MachineBridge::getInternalName(uint32_t iface)
{
return getInternalName(getIface(iface));
}
QString MachineBridge::getNatNetwork(uint32_t iface)
{
return getNatNetwork(getIface(iface));
}
QString MachineBridge::getAttachmentData(uint32_t iface, uint32_t attachmentType)
{
return getAttachmentData(getIface(iface), getAttachmentType(getIface(iface)));
}
bool TClntIfaceMgr::modifyPrefix(int iface, SPtr<TIPv6Addr> prefix, int prefixLen,
unsigned int pref, unsigned int valid,
PrefixModifyMode mode)
{
SPtr<TClntIfaceIface> ptrIface = (Ptr*)getIfaceByID(iface);
if (!ptrIface) {
Log(Error) << "Unable to find interface with ifindex=" << iface
<< ", prefix add/modify operation failed." << LogEnd;
return false;
}
string action;
int conf = 0; // number of successfully configured prefixes
int status = -1;
switch (mode) {
case PREFIX_MODIFY_ADD:
action = "Adding";
break;
case PREFIX_MODIFY_UPDATE:
action = "Updating";
break;
case PREFIX_MODIFY_DEL:
action = "Deleting";
break;
}
// option: split this prefix and add it to all interfaces
Log(Notice) << "PD: " << action << " prefix " << prefix->getPlain() << "/" << (int)prefixLen
<< " to all interfaces (prefix will be split to /"
<< int(prefixLen+8) << " prefixes if necessary)." << LogEnd;
if (prefixLen>120) {
Log(Error) << "PD: Unable to perform prefix operation: prefix /" << prefixLen
<< " can't be split. At least /120 prefix is required." << LogEnd;
return false;
}
// get a list of interfaces that we will assign prefixes to
TIfaceIfaceLst ifaceLst;
vector<string> ifaceNames = ClntCfgMgr().getDownlinkPrefixIfaces();
for (vector<string>::const_iterator name = ifaceNames.begin(); name != ifaceNames.end(); ++name) {
SPtr<TIfaceIface> x = getIfaceByName(*name);
if (x)
ifaceLst.push_back(x);
else
Log(Warning) << "Interface " << *name << " specified in downlink-prefix-ifaces is missing." << LogEnd;
}
if (ifaceLst.size() == 0) {
SPtr<TIfaceIface> x;
firstIface();
while ( x = (Ptr*)getIface() ) {
if (x->getID() == ptrIface->getID()) {
Log(Debug) << "PD: Interface " << x->getFullName()
<< " is the interface, where prefix has been obtained, skipping." << LogEnd;
continue;
}
// for each interface present in the system...
if (!x->flagUp()) {
Log(Debug) << "PD: Interface " << x->getFullName() << " is down, ignoring." << LogEnd;
continue;
}
if (!x->flagRunning()) {
Log(Debug) << "PD: Interface " << x->getFullName()
<< " has flag RUNNING not set, ignoring." << LogEnd;
continue;
}
if (!x->flagMulticast()) {
Log(Debug) << "PD: Interface " << x->getFullName()
<< " is not multicast capable, ignoring." << LogEnd;
continue;
}
if ( !(x->getMacLen() > 5) ) {
Log(Debug) << "PD: Interface " << x->getFullName()
<< " has MAC address length " << x->getMacLen()
<< " (6 or more required), ignoring." << LogEnd;
continue;
}
x->firstLLAddress();
if (!x->getLLAddress()) {
Log(Debug) << "PD: Interface " << x->getFullName()
<< " has no link-local address, ignoring. (Disconnected? Not associated? No-link?)" << LogEnd;
continue;
}
ifaceLst.push_back(x);
}
}
Log(Info) << "PD: Using " << ifaceLst.size() << " suitable interface(s):";
TIfaceIfaceLst::const_iterator i;
for (TIfaceIfaceLst::const_iterator i=ifaceLst.begin(); i!=ifaceLst.end(); ++i) {
Log(Cont) << (*i)->getName() << " ";
}
Log(Cont) << LogEnd;
if (ifaceLst.size() == 0) {
Log(Warning) << "Suitable interfaces not found. Delegated prefix not split." << LogEnd;
return true;
}
for (TIfaceIfaceLst::const_iterator i=ifaceLst.begin(); i!=ifaceLst.end(); ++i) {
char buf[16];
int subprefixLen;
memmove(buf, prefix->getAddr(), 16);
if (ifaceLst.size() == 1) {
// just one interface - use delegated prefix as is
subprefixLen = prefixLen;
} else if (ifaceLst.size()<256) {
subprefixLen = prefixLen + 8;
int offset = prefixLen/8;
if (prefixLen%8 == 0) {
// that's easy, just put ID in the next octet
buf[offset] = (*i)->getID();
} else {
// here's fun
uint16_t existing = readUint16(buf+offset);
uint16_t bitmask = 0xff00;
uint16_t infixmask = ((uint8_t)(*i)->getID()) << 8;
bitmask = bitmask >> (prefixLen%8);
infixmask = infixmask >> (prefixLen%8);
// clear out if there is anything there, i.e. server assigned prefix
// with garbage in host section
existing = existing & (~bitmask);
existing = existing | (bitmask & infixmask);
writeUint16(buf+offset, existing);
}
} else {