/*
* opens proper (multicast or unicast) socket on interface
*/
bool TRelTransMgr::openSocket(SPtr<TRelCfgIface> cfgIface) {
SPtr<TIfaceIface> iface = RelIfaceMgr().getIfaceByID(cfgIface->getID());
if (!iface) {
Log(Crit) << "Unable to find " << cfgIface->getName() << "/" << cfgIface->getID()
<< " interface in the IfaceMgr." << LogEnd;
return false;
}
SPtr<TIPv6Addr> srvUnicast = cfgIface->getServerUnicast();
SPtr<TIPv6Addr> clntUnicast = cfgIface->getClientUnicast();
SPtr<TIPv6Addr> addr;
if (cfgIface->getServerMulticast() || srvUnicast) {
iface->firstGlobalAddr();
addr = iface->getGlobalAddr();
if (!addr) {
Log(Warning) << "No global address defined on the " << iface->getFullName() << " interface."
<< " Trying to bind link local address, but expect troubles with relaying." << LogEnd;
iface->firstLLAddress();
addr = new TIPv6Addr(iface->getLLAddress());
}
Log(Notice) << "Creating srv unicast (" << addr->getPlain() << ") socket on the "
<< iface->getName() << "/" << iface->getID() << " interface." << LogEnd;
if (!iface->addSocket(addr, DHCPSERVER_PORT, true, false)) {
Log(Crit) << "Proper socket creation failed." << LogEnd;
return false;
}
}
if (cfgIface->getClientMulticast()) {
addr = new TIPv6Addr(ALL_DHCP_RELAY_AGENTS_AND_SERVERS, true);
Log(Notice) << "Creating clnt multicast (" << addr->getPlain() << ") socket on the "
<< iface->getName() << "/" << iface->getID() << " interface." << LogEnd;
if (!iface->addSocket(addr, DHCPSERVER_PORT, true, false)) {
Log(Crit) << "Proper socket creation failed." << LogEnd;
return false;
}
}
if (clntUnicast) {
addr = new TIPv6Addr(ALL_DHCP_RELAY_AGENTS_AND_SERVERS, true);
Log(Notice) << "Creating clnt unicast (" << clntUnicast->getPlain() << ") socket on the "
<< iface->getName() << "/" << iface->getID() << " interface." << LogEnd;
if (!iface->addSocket(clntUnicast, DHCPSERVER_PORT, true, false)) {
Log(Crit) << "Proper socket creation failed." << LogEnd;
return false;
}
}
return true;
}
bool TClntTransMgr::openLoopbackSocket() {
SPtr<TIfaceIface> ptrIface;
// if BindReuse is set, return true from here and dont create new loopback socket to allow multiple instances
if (this->BindReuse)
return true;
#ifndef WIN32
SPtr<TIfaceIface> loopback;
ClntIfaceMgr().firstIface();
while (ptrIface=ClntIfaceMgr().getIface()) {
if (!ptrIface->flagLoopback()) {
continue;
}
loopback = ptrIface;
break;
}
if (!loopback) {
Log(Crit) << "Loopback interface not found!" << LogEnd;
return false;
}
SPtr<TIPv6Addr> loopAddr = new TIPv6Addr("::", true);
Log(Notice) << "Creating control (" << *loopAddr << ") socket on the " << loopback->getName()
<< "/" << loopback->getID() << " interface." << LogEnd;
if (!loopback->addSocket(loopAddr,DHCPCLIENT_PORT, false, true)) {
Log(Crit) << "Proper socket creation failed." << LogEnd;
return false;
}
#endif
return true;
}
/*
* opens proper (multicast or unicast) socket on interface
*/
bool TSrvTransMgr::openSocket(SPtr<TSrvCfgIface> confIface, int port) {
int ifindex = -1;
if (confIface->isRelay()) {
ifindex = confIface->getRelayID();
} else {
ifindex = confIface->getID();
}
SPtr<TIfaceIface> iface = SrvIfaceMgr().getIfaceByID(ifindex);
SPtr<TIPv6Addr> unicast = confIface->getUnicast();
if (!iface) {
Log(Crit) << "Unable to find interface with ifindex=" << ifindex << LogEnd;
return false;
}
if (confIface->isRelay()) {
Log(Info) << "Relay init: Creating socket on the underlaying interface: "
<< iface->getFullName() << "." << LogEnd;
}
if (unicast) {
/* unicast */
Log(Notice) << "Creating unicast (" << *unicast << ") socket on "
<< confIface->getFullName() << " interface." << LogEnd;
if (!iface->addSocket(unicast, port, true, false)) {
Log(Crit) << "Proper socket creation failed." << LogEnd;
return false;
}
}
char srvAddr[16];
if (!confIface->isRelay()) {
inet_pton6(ALL_DHCP_RELAY_AGENTS_AND_SERVERS,srvAddr);
} else {
inet_pton6(ALL_DHCP_SERVERS,srvAddr);
}
SPtr<TIPv6Addr> ipAddr(new TIPv6Addr(srvAddr));
Log(Notice) << "Creating multicast (" << ipAddr->getPlain() << ") socket on "
<< confIface->getFullName() << " (" << iface->getFullName()
<< ") interface." << LogEnd;
if (iface->getSocketByAddr(ipAddr)) {
Log(Notice) << "Address " << ipAddr->getPlain() << " is already bound on the "
<< iface->getName() << "." << LogEnd;
return true;
}
if (!iface->addSocket(ipAddr, port, true, false)) {
Log(Crit) << "Proper socket creation failed." << LogEnd;
return false;
}
#if 1
if (!iface->countLLAddress()) {
Log(Crit) << "There is no link-local address on " << iface->getFullName() << " defined." << LogEnd;
return false;
}
memcpy(srvAddr, iface->firstLLAddress(), 16);
SPtr<TIPv6Addr> llAddr = new TIPv6Addr(iface->firstLLAddress());
if (iface->getSocketByAddr(llAddr)) {
Log(Notice) << "Address " << llAddr->getPlain() << " is already bound on the "
<< iface->getName() << "." << LogEnd;
return true;
} else {
Log(Notice) << "Creating link-local (" << llAddr->getPlain() << ") socket on " << iface->getFullName()
<< " interface." << LogEnd;
if (!iface->addSocket(llAddr, port, true, false)) {
Log(Crit) << "Failed to create link-local socket on " << iface->getFullName() << " interface." << LogEnd;
return false;
}
}
#endif
return true;
}
bool TClntTransMgr::openSockets(SPtr<TClntCfgIface> iface) {
if (iface->noConfig())
return true;
// open socket
SPtr<TIfaceIface> realIface = ClntIfaceMgr().getIfaceByID(iface->getID());
if (!realIface) {
Log(Error) << "Interface " << iface->getFullName()
<< " not present in system." << LogEnd;
return false;
}
if (!realIface->flagUp()) {
Log(Error) << "Interface " << realIface->getFullName()
<< " is down. Unable to open socket." << LogEnd;
return false;
}
if (!realIface->flagRunning()) {
Log(Error) << "Interface " << realIface->getFullName()
<< " is not running." << LogEnd;
return false;
}
// get link-local address
char* llAddr;
realIface->firstLLAddress();
llAddr=realIface->getLLAddress();
if (!llAddr) {
Log(Error) << "Interface " << realIface->getFullName()
<< " does not have link-layer address. Weird." << LogEnd;
return false;
}
// By default, we use the first link-local address on the interface
SPtr<TIPv6Addr> addr = new TIPv6Addr(llAddr);
// However, if the user specified bind-to address, we'll use that instead.
if (iface->getBindToAddr()) {
addr = iface->getBindToAddr();
Log(Debug) << "Using bind-to address " << addr->getPlain() << " on interface "
<< iface->getFullName() << LogEnd;
}
// it's very important to open unicast socket first as it will be used for
// unicast communication
if (iface->getUnicast()) {
Log(Notice) << "Creating socket for unicast communication on " << iface->getFullName()
<< LogEnd;
SPtr<TIPv6Addr> anyaddr = new TIPv6Addr("::", true); // don't bind to a specific address
if (!realIface->addSocket(anyaddr, DHCPCLIENT_PORT, false, this->BindReuse)) {
Log(Crit) << "Unicast socket creation (addr=" << anyaddr->getPlain() << ") on "
<< iface->getFullName() << " interface failed." << LogEnd;
return false;
}
}
Log(Notice) << "Creating socket (addr=" << *addr << ") on "
<< iface->getFullName() << " interface." << LogEnd;
if (!realIface->addSocket(addr,DHCPCLIENT_PORT,true, this->BindReuse)) {
Log(Crit) << "Socket creation (addr=" << *addr << ") on "
<< iface->getFullName() << " interface failed." << LogEnd;
return false;
}
if (llAddr) {
char buf[48];
inet_ntop6(llAddr,buf);
CtrlIface_ = realIface->getID();
strncpy(CtrlAddr_, buf, 48);
}
return true;
}
/*
* opens proper (multicast or unicast) socket on interface
*/
bool TSrvTransMgr::openSocket(SPtr<TSrvCfgIface> confIface) {
SPtr<TSrvIfaceIface> iface = (Ptr*)SrvIfaceMgr().getIfaceByID(confIface->getID());
SPtr<TIPv6Addr> unicast = confIface->getUnicast();
if (confIface->isRelay()) {
while (iface->getUnderlaying()) {
iface = iface->getUnderlaying();
}
if (!iface->countSocket())
Log(Notice) << "Relay init: Creating socket on the underlaying interface: " << iface->getName()
<< "/" << iface->getID() << "." << LogEnd;
}
if (unicast) {
/* unicast */
Log(Notice) << "Creating unicast (" << *unicast << ") socket on " << confIface->getName()
<< "/" << confIface->getID() << " interface." << LogEnd;
if (!iface->addSocket( unicast, DHCPSERVER_PORT, true, false)) {
Log(Crit) << "Proper socket creation failed." << LogEnd;
return false;
}
}
// Creating TCP socket
if (SrvCfgMgr().isBulkSupported()) {
Log(Notice) << "Bulk-leasequery accepted. Creating TCP socket on" << confIface->getName()
<<"/" << confIface->getID() << " interface." << LogEnd;
if (!iface->addTcpSocket(unicast,DHCPSERVER_PORT,0)) {
Log(Crit) << "Proper TCP socket creation failed." << LogEnd;
}
}
char srvAddr[16];
if (!confIface->isRelay()) {
inet_pton6(ALL_DHCP_RELAY_AGENTS_AND_SERVERS,srvAddr);
} else {
inet_pton6(ALL_DHCP_SERVERS,srvAddr);
}
SPtr<TIPv6Addr> ipAddr(new TIPv6Addr(srvAddr));
Log(Notice) << "Creating multicast (" << ipAddr->getPlain() << ") socket on " << confIface->getName()
<< "/" << confIface->getID() << " (" << iface->getName() << "/"
<< iface->getID() << ") interface." << LogEnd;
if (iface->getSocketByAddr(ipAddr)) {
Log(Notice) << "Address " << ipAddr->getPlain() << " is already bound on the "
<< iface->getName() << "." << LogEnd;
return true;
}
if (!iface->addSocket(ipAddr, DHCPSERVER_PORT, true, false)) {
Log(Crit) << "Proper socket creation failed." << LogEnd;
return false;
}
#if 1
if (!iface->countLLAddress()) {
Log(Crit) << "There is no link-local address on " << iface->getFullName() << " defined." << LogEnd;
return false;
}
memcpy(srvAddr, iface->firstLLAddress(), 16);
SPtr<TIPv6Addr> llAddr = new TIPv6Addr(iface->firstLLAddress());
if (iface->getSocketByAddr(llAddr)) {
Log(Notice) << "Address " << llAddr->getPlain() << " is already bound on the "
<< iface->getName() << "." << LogEnd;
return true;
} else {
Log(Notice) << "Creating link-local (" << llAddr->getPlain() << ") socket on " << iface->getFullName()
<< " interface." << LogEnd;
if (!iface->addSocket(llAddr, DHCPSERVER_PORT, true, false)) {
Log(Crit) << "Failed to create link-local socket on " << iface->getFullName() << " interface." << LogEnd;
return false;
}
}
#endif
return true;
}
