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/*
* Dibbler - a portable DHCPv6
*
* authors: Tomasz Mrugalski <thomson@klub.com.pl>
* Marek Senderski <msend@o2.pl>
*
* released under GNU GPL v2 licence
*
*/
#include "DHCPServer.h"
#include "AddrClient.h"
#include "Logger.h"
#include "SrvIfaceMgr.h"
#include "SrvCfgMgr.h"
#include "SrvTransMgr.h"
using namespace std;
volatile int serviceShutdown;
TDHCPServer::TDHCPServer(const std::string& config)
:IsDone_(false)
{
serviceShutdown = 0;
srand((uint32_t)time(NULL));
TSrvIfaceMgr::instanceCreate(SRVIFACEMGR_FILE);
if ( SrvIfaceMgr().isDone() ) {
Log(Crit) << "Fatal error during IfaceMgr initialization." << LogEnd;
IsDone_ = true;
return;
}
SrvIfaceMgr().dump();
TSrvCfgMgr::instanceCreate(config, SRVCFGMGR_FILE);
if ( SrvCfgMgr().isDone() ) {
Log(Crit) << "Fatal error during CfgMgr initialization." << LogEnd;
IsDone_ = true;
return;
}
SrvCfgMgr().dump();
TSrvAddrMgr::instanceCreate(SRVADDRMGR_FILE, true /*always load DB*/ );
if ( SrvAddrMgr().isDone() ) {
Log(Crit) << "Fatal error during AddrMgr initialization." << LogEnd;
IsDone_ = true;
return;
}
TSrvTransMgr::instanceCreate(SRVTRANSMGR_FILE, DHCPSERVER_PORT);
if ( SrvTransMgr().isDone() ) {
Log(Crit) << "Fatal error during TransMgr initialization." << LogEnd;
IsDone_ = true;
return;
}
if ( !SrvTransMgr().sanitizeAddrDB() ) {
Log(Crit) << "Loaded address database failed sanitization checks."
<< LogEnd;
IsDone_ = true;
return;
}
SrvAddrMgr().dump();
SrvCfgMgr().removeReservedFromCache();
SrvCfgMgr().setCounters();
SrvCfgMgr().dump();
SrvTransMgr().dump();
}
void TDHCPServer::run()
{
Log(Notice) << "Server begins operation." << LogEnd;
bool silent = false;
while ( (!isDone()) && (!SrvTransMgr().isDone()) ) {
if (serviceShutdown)
SrvTransMgr().shutdown();
SrvTransMgr().doDuties();
unsigned int timeout = SrvTransMgr().getTimeout();
if (timeout == 0)
timeout = 1;
if (serviceShutdown)
timeout = 0;
if (!silent)
Log(Notice) << "Accepting connections. Next event in " << timeout
<< " second(s)." << LogEnd;
#ifdef WIN32
// There's no easy way to break select under Windows, so just don't sleep for too long.
if (timeout>5) {
silent = true;
timeout = 5;
}
#endif
SPtr<TSrvMsg> msg=SrvIfaceMgr().select(timeout);
if (!msg)
continue;
silent = false;
SPtr<TIfaceIface> physicalIface = SrvIfaceMgr().getIfaceByID(msg->getPhysicalIface());
SPtr<TSrvCfgIface> logicalIface = SrvCfgMgr().getIfaceByID(msg->getIface());
if (!physicalIface) {
Log(Error) << "Received data over unknown physical interface: ifindex="
<< msg->getPhysicalIface() << LogEnd;
continue;
}
if (!logicalIface) {
Log(Error) << "Received data over unknown logical interface: ifindex="
<< msg->getIface() << LogEnd;
continue;
}
Log(Notice) << "Received " << msg->getName() << " on " << physicalIface->getFullName()
<< hex << ", trans-id=0x" << msg->getTransID() << dec
<< ", " << msg->countOption() << " opts:";
SPtr<TOpt> ptrOpt;
msg->firstOption();
while (ptrOpt = msg->getOption() )
Log(Cont) << " " << ptrOpt->getOptType();
if (msg->RelayInfo_.size()) {
Log(Cont) << " (" << logicalIface->getFullName() << ", "
<< msg->RelayInfo_.size() << " relay(s)." << LogEnd;
} else {
Log(Cont) << " (non-relayed)" << LogEnd;
}
if (SrvCfgMgr().stateless() && ( (msg->getType()!=INFORMATION_REQUEST_MSG) &&
(msg->getType()!=RELAY_FORW_MSG))) {
Log(Warning)
<< "Stateful configuration message received while running in "
<< "the stateless mode. Message ignored." << LogEnd;
continue;
}
SrvTransMgr().relayMsg(msg);
}
SrvCfgMgr().setPerformanceMode(false);
SrvAddrMgr().dump();
SrvIfaceMgr().closeSockets();
Log(Notice) << "Bye bye." << LogEnd;
}
bool TDHCPServer::isDone() {
return IsDone_;
}
bool TDHCPServer::checkPrivileges() {
/// @todo: check privileges
return true;
}
void TDHCPServer::stop() {
serviceShutdown = 1;
Log(Warning) << "Service SHUTDOWN." << LogEnd;
}
void TDHCPServer::setWorkdir(std::string workdir) {
SrvCfgMgr().setWorkdir(workdir);
SrvCfgMgr().dump();
}
TDHCPServer::~TDHCPServer()
{
}
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