TTLChecker Class Reference

Inheritance diagram for TTLChecker:

Connector NsObject TclObject Handler Collaboration diagram for TTLChecker:

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Detailed Description

Definition at line 44 of file ttl.cc.

Public Member Functions

int command (int argc, const char *const *argv)
virtual void debug (const char *fmt,...)
virtual int delay_bind_dispatch (const char *varName, const char *localName, TclObject *tracer)
virtual void delay_bind_init_all ()
virtual void drop (Packet *p)
int isdebug () const
virtual void recv (Packet *p, const char *s)
void recv (Packet *p, Handler *h)
virtual void recvOnly (Packet *)
void setDropTarget (NsObject *dt)
void target (NsObject *target)
NsObject * target ()
 TTLChecker ()

Protected Member Functions

virtual void drop (Packet *p, const char *s)
void handle (Event *)
virtual void reset ()
void send (Packet *p, Handler *h)

Protected Attributes

int debug_
NsObject * drop_
int noWarn_
NsObject * target_
int tick_

Constructor & Destructor Documentation

TTLChecker::TTLChecker (   )  [inline]
 

Definition at line 46 of file ttl.cc.

00046 : noWarn_(1), tick_(1) {}

Member Function Documentation

int TTLChecker::command (  int  argc,
const char *const *  argv
)  [inline, virtual]
 

Reimplemented from Connector.

Definition at line 47 of file ttl.cc.

References Connector::command(), noWarn_, and tick_.

00047                                                   {
00048         if (argc == 3) {
00049             if (strcmp(argv[1], "warning") == 0) {
00050                 noWarn_ = ! atoi(argv[2]);
00051                 return TCL_OK;
00052             }
00053             if (strcmp(argv[1], "tick") == 0) {
00054                 int tick = atoi(argv[2]);
00055                 if (tick > 0) {
00056                     tick_ = tick;
00057                     return TCL_OK;
00058                 } else {
00059                     Tcl& tcl = Tcl::instance();
00060                     tcl.resultf("%s: TTL must be positive (specified = %d)\n",
00061                             name(), tick);
00062                     return TCL_ERROR;
00063                 }
00064             }
00065         }
00066         return Connector::command(argc, argv);
00067     }

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void NsObject::debug (  const char *  fmt,
  ...
)  [virtual, inherited]
 

Definition at line 102 of file object.cc.

References NsObject::debug_.

00103 {
00104     if (!debug_)
00105         return;
00106     va_list ap;
00107     va_start(ap, fmt);
00108     vprintf(fmt, ap);
00109 }

int NsObject::delay_bind_dispatch (  const char *  varName,
const char *  localName,
TclObject *  tracer
)  [virtual, inherited]
 

Reimplemented in BayFullTcpAgent, Agent, MPLSAddressClassifier, LDPAgent, HbAfterRtoSctpAgent, MfrHbAfterRtoSctpAgent, MfrTimestampSctpAgent, MultipleFastRtxSctpAgent, NewRenoSctpAgent, TimestampSctpAgent, SctpAgent, FullTcpAgent, SackFullTcpAgent, RFC793eduTcpAgent, TcpSink, TcpAgent, VegasTcpAgent, XcpAgent, and XcpSink.

Definition at line 63 of file object.cc.

References NsObject::debug_.

Referenced by MPLSAddressClassifier::delay_bind_dispatch(), and Agent::delay_bind_dispatch().

00064 {
00065     if (delay_bind_bool(varName, localName, "debug_", &debug_, tracer)) 
00066         return TCL_OK;
00067     return TclObject::delay_bind_dispatch(varName, localName, tracer);
00068 }

void NsObject::delay_bind_init_all (   )  [virtual, inherited]
 

Reimplemented in BayFullTcpAgent, Agent, MPLSAddressClassifier, LDPAgent, HbAfterRtoSctpAgent, MfrHbAfterRtoSctpAgent, MfrTimestampSctpAgent, MultipleFastRtxSctpAgent, NewRenoSctpAgent, TimestampSctpAgent, SctpAgent, FullTcpAgent, SackFullTcpAgent, RFC793eduTcpAgent, TcpSink, TcpAgent, VegasTcpAgent, XcpAgent, and XcpSink.

Definition at line 57 of file object.cc.

Referenced by MPLSAddressClassifier::delay_bind_init_all(), and Agent::delay_bind_init_all().

00058 {
00059     delay_bind_init_one("debug_");
00060 }

void Connector::drop (  Packet *  p,
const char *  s
)  [protected, virtual, inherited]
 

Definition at line 114 of file connector.cc.

References Connector::drop_, Packet::free(), and NsObject::recv().

00115 {
00116     if (drop_ != 0)
00117         drop_->recv(p, s);
00118     else
00119         Packet::free(p);
00120 }

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void Connector::drop (  Packet *  p  )  [virtual, inherited]
 

Reimplemented in XCPQueue.

Definition at line 106 of file connector.cc.

References Connector::drop_, Packet::free(), and NsObject::recv().

Referenced by ARPTable::arpresolve(), XCPQueue::drop(), JoBS::dropFront(), Vq::dropPacketForECN(), DSRAgent::dropSendBuff(), JoBS::dropTail(), dsREDQueue::edrop(), Vq::enque(), SRR::enque(), SimpleIntServ::enque(), SFQ::enque(), rtqueue::enque(), RIOQueue::enque(), REMQueue::enque(), REDQueue::enque(), RedPDQueue::enque(), PIQueue::enque(), Marker::enque(), GK::enque(), dsREDQueue::enque(), DRR::enque(), DropTail::enque(), Demarker::enque(), aodv_rqueue::enque(), toraAgent::forward(), AODV::forward(), DSDV_Agent::forwardPacket(), DSRAgent::getRouteForPacket(), HDLC::goBackNMode(), Snoop::handle(), DSRAgent::handleFlowForwarding(), DSRAgent::handleForwarding(), HDLC::handleRR(), DSDV_Agent::lost_link(), TCPTapAgent::processpkt(), CMUPriQueue::prq_enqueue(), rtqueue::purge(), SessionTTLChecker::recv(), recv(), FullTcpAgent::recv(), BayFullTcpAgent::recv(), SatLL::recv(), LL::recv(), GAFPartner::recv(), Filter::recv(), DynamicLink::recv(), AODV::recvError(), PriQueue::recvHighPriority(), HDLC::recvIncoming(), toraAgent::reset(), HDLC::reset(), Queue< T >::reset(), LinkDelay::reset(), AODV::rt_ll_failed(), AODV::rt_purge(), toraAgent::rtRoutePacket(), HDLC::selectiveRepeatMode(), AODV::sendRequest(), SatLL::sendUp(), LL::sendUp(), DropTail::shrink_queue(), PriQueue::Terminate(), DSRAgent::Terminate(), CMUPriQueue::Terminate(), ARPTable::Terminate(), and DSRAgent::undeliverablePkt().

00107 {
00108     if (drop_ != 0)
00109         drop_->recv(p);
00110     else
00111         Packet::free(p);
00112 }

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void NsObject::handle (  Event *   )  [protected, virtual, inherited]
 

Implements Handler.

Reimplemented in LinkDelay, LL, AckRecons, and Snoop.

Definition at line 91 of file object.cc.

References NsObject::recv().

00092 {
00093     recv((Packet*)e);
00094 }

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int NsObject::isdebug (   )  const [inline, inherited]
 

Definition at line 61 of file object.h.

References NsObject::debug_.

00061 { return debug_; }

void NsObject::recv (  Packet *  p,
const char *  s
)  [virtual, inherited]
 

Reimplemented in CMUTrace.

Definition at line 96 of file object.cc.

References Packet::free().

00097 {
00098     Packet::free(p);
00099 }

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void TTLChecker::recv (  Packet *  p,
Handler *  h
)  [inline, virtual]
 

Reimplemented from Connector.

Definition at line 68 of file ttl.cc.

References hdr_ip::access(), Connector::drop(), noWarn_, Connector::send(), tick_, and hdr_ip::ttl().

00068                                      {
00069         hdr_ip* iph = hdr_ip::access(p);
00070         int ttl = iph->ttl() - tick_;
00071         if (ttl <= 0) {
00072             /* XXX should send to a drop object.*/
00073             // Yes, and now it does...
00074             // Packet::free(p);
00075             if (! noWarn_)
00076                 printf("ttl exceeded\n");
00077             drop(p);
00078             return;
00079         }
00080         iph->ttl() = ttl;
00081         send(p, h);
00082     }

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virtual void NsObject::recvOnly (  Packet *   )  [inline, virtual, inherited]
 

Reimplemented in Agent, and Trace.

Definition at line 56 of file object.h.

Referenced by Trace::recvOnly().

00056 {};

void NsObject::reset (   )  [protected, virtual, inherited]
 

Reimplemented in BayFullTcpAgent, HashClassifier, IvsSource, dsREDQueue, DiffusionRate, SinkAgent, DiffusionAgent, FloodingAgent, OmniMcastAgent, LinkDelay, CBQueue, DropTail, ErrorModel, PIQueue, Queue< T >, RedPDQueue, REDQueue, REMQueue, RIOQueue, Snoop, FackTcpAgent, FullTcpAgent, SackFullTcpAgent, RFC793eduTcpAgent, Sack1TcpAgent, TcpSink, DelAckSink, TcpAgent, VegasTcpAgent, toraAgent, Queue< T >, and XcpSink.

Definition at line 70 of file object.cc.

Referenced by NsObject::command().

00071 {
00072 }

void Connector::send (  Packet *  p,
Handler *  h
)  [inline, protected, inherited]
 

Reimplemented in Agent, and LinkDelay.

Definition at line 56 of file connector.h.

References NsObject::recv(), and Connector::target_.

Referenced by SessionTTLChecker::recv(), recv(), Trace::recv(), TraceIpMac::recv(), TraceIp::recv(), SnoopQueueEDrop::recv(), SnoopQueueTagger::recv(), SnoopQueueDrop::recv(), SnoopQueueOut::recv(), SnoopQueueIn::recv(), PktCounter::recv(), NetworkInterface::recv(), MeasureMod::recv(), Filter::recv(), Connector::recv(), CMUTrace::recv(), and AddSR::recv().

00056 { target_->recv(p, h); }

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void Connector::setDropTarget (  NsObject *  dt  )  [inline, inherited]
 

Definition at line 51 of file connector.h.

References Connector::drop_.

Referenced by XCPWrapQ::command().

00051 {drop_ = dt; }

void Connector::target (  NsObject *  target  )  [inline, inherited]
 

Definition at line 49 of file connector.h.

References Connector::target(), and Connector::target_.

00049 { target_ = target; }

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NsObject* Connector::target (   )  [inline, inherited]
 

Definition at line 48 of file connector.h.

References Connector::target_.

Referenced by JoBS::assignRateDropsADC(), FQ::deque(), MIPMHAgent::reg(), MIPBSAgent::send_ads(), and Connector::target().

00048 { return target_; }

Field Documentation

int NsObject::debug_ [protected, inherited]
 

Reimplemented in FECModel, FloodAgent, and LandmarkAgent.

Definition at line 66 of file object.h.

Referenced by REDQueue::command(), RedPDQueue::command(), PushbackQueue::command(), NsObject::debug(), NsObject::delay_bind_dispatch(), PushbackQueue::enque(), NsObject::isdebug(), NsObject::NsObject(), TfrcAgent::recv(), PushbackQueue::reportDrop(), SctpAgent::Reset(), REDQueue::reset(), DropTail::shrink_queue(), and Delayer::try_send().

NsObject* Connector::drop_ [protected, inherited]
 

Definition at line 59 of file connector.h.

Referenced by XCPWrapQ::command(), Connector::command(), Connector::drop(), ErrorModel::recv(), and Connector::setDropTarget().

int TTLChecker::noWarn_ [protected]
 

Definition at line 84 of file ttl.cc.

Referenced by command(), and recv().

NsObject* Connector::target_ [protected, inherited]
 

Definition at line 58 of file connector.h.

Referenced by SRAgent::command(), SA_Agent::command(), IvsReceiver::command(), MultiFieldFilter::command(), Filter::command(), Connector::command(), DiffusionAgent::DiffusionAgent(), DSRAgent::DSRAgent(), PromotionTimer::expire(), FloodingAgent::FloodingAgent(), SctpAgent::ForceSource(), toraAgent::forward(), AODV::forward(), DSDV_Agent::forwardPacket(), SensorQueryAgent::generate_query(), DSDVTriggerHandler::handle(), AckRecons::handle(), DSDV_Agent::helper_callback(), DSDV_Agent::lost_link(), OmniMcastAgent::OmniMcastAgent(), LandmarkAgent::periodic_callback(), TCPTapAgent::processpkt(), IPTapAgent::processpkt(), CMUPriQueue::prq_enqueue(), CMUPriQueue::prq_resume(), Trace::recv(), TraceIpMac::recv(), TraceIp::recv(), SRMAgent::recv(), SSMSRMAgent::recv(), SAack_Agent::recv(), Queue< T >::recv(), PingResponder::recv(), MIPEncapsulator::recv(), LmsAgent::recv(), HackLossyLink::recv(), FQ::recv(), ErrorModel::recv(), DynamicLink::recv(), DSRAgent::recv(), DelayModel::recv(), LinkDelay::recv(), CtrMcastDecap::recv(), CtrMcastEncap::recv(), CMUTrace::recv(), Trace::recvOnly(), Queue< T >::resume(), LinkDelay::send(), Connector::send(), Agent::send(), MIPBSAgent::send_ads(), SRMAgent::send_ctrl(), SSMSRMAgent::send_ctrl(), LmsSender::send_dmcast(), LmsReceiver::send_dmcast(), LmsAgent::send_downstream(), LmsSender::send_lms_pkt(), LmsReceiver::send_nak(), LmsReceiver::send_refresh(), MIPMHAgent::send_sols(), LmsSender::send_spm(), LmsAgent::send_upstream(), LandmarkAgent::SendChangedTagListUpdate(), AODV::sendError(), AODV::sendHello(), UdpAgent::sendmsg(), SRMAgent::sendmsg(), SA_Agent::sendmsg(), RTPAgent::sendmsg(), MessagePassingAgent::sendmsg(), LmsSender::sendmsg(), DSDV_Agent::sendOutBCastPkt(), SA_Agent::sendpkt(), rtProtoDV::sendpkt(), RTPAgent::sendpkt(), RTCPAgent::sendpkt(), IvsSource::sendpkt(), AODV::sendReply(), AODV::sendRequest(), TPAgent::sendto(), MessagePassingAgent::sendto(), SctpAgent::SetSource(), LmsSender::solicit_naks(), Connector::target(), toraAgent::tora_output(), and Delayer::try_send().

int TTLChecker::tick_ [protected]
 

Definition at line 85 of file ttl.cc.

Referenced by command(), and recv().

The documentation for this class was generated from the following file:
Generated on Tue Mar 6 17:35:00 2007 for ns2 Network Simulator 2.29 by  doxygen 1.4.6