trace.cc
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- /* -*- Mode:C++; c-basic-offset:8; tab-width:8 -*- */
- /*
- * Copyright (c) 1990-1997 Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the Computer Systems
- * Engineering Group at Lawrence Berkeley Laboratory.
- * 4. Neither the name of the University nor of the Laboratory may be used
- * to endorse or promote products derived from this software without
- * specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#) $Header: /cvsroot/nsnam/ns-2/trace/trace.cc,v 1.81 2005/07/13 03:51:33 tomh Exp $ (LBL)
- */
- #include <stdio.h>
- #include <stdlib.h>
- #include "packet.h"
- #include "ip.h"
- #include "tcp.h"
- #include "sctp.h"
- #include "rtp.h"
- #include "srm.h"
- #include "tfrc.h"
- #include "flags.h"
- #include "address.h"
- #include "trace.h"
- #include "rap/rap.h"
- //const double Trace::PRECISION = 1.0e+6;
- class TraceClass : public TclClass {
- public:
- TraceClass() : TclClass("Trace") { }
- TclObject* create(int argc, const char*const* argv) {
- if (argc >= 5)
- return (new Trace(*argv[4]));
- return 0;
- }
- } trace_class;
- Trace::Trace(int type)
- : Connector(), callback_(0), pt_(0), type_(type)
- {
- bind("src_", (int*)&src_);
- bind("dst_", (int*)&dst_);
- bind("callback_", &callback_);
- bind("show_tcphdr_", &show_tcphdr_);
- bind("show_sctphdr_", &show_sctphdr_);
- pt_ = new BaseTrace;
- }
- Trace::~Trace()
- {
- }
- /*
- * $trace detach
- * $trace flush
- * $trace attach $fileID
- */
- int Trace::command(int argc, const char*const* argv)
- {
- Tcl& tcl = Tcl::instance();
- if (argc == 2) {
- if (strcmp(argv[1], "detach") == 0) {
- pt_->channel(0) ;
- pt_->namchannel(0) ;
- return (TCL_OK);
- }
- if (strcmp(argv[1], "flush") == 0) {
- Tcl_Channel ch = pt_->channel();
- Tcl_Channel namch = pt_->namchannel();
- if (ch != 0)
- pt_->flush(ch);
- //Tcl_Flush(pt_.channel());
- if (namch != 0)
- //Tcl_Flush(pt_->namchannel());
- pt_->flush(namch);
- return (TCL_OK);
- }
- if (strcmp(argv[1], "tagged") == 0) {
- tcl.resultf("%d", pt_->tagged());
- return (TCL_OK);
- }
- } else if (argc == 3) {
- if (strcmp(argv[1], "annotate") == 0) {
- if (pt_->channel() != 0)
- annotate(argv[2]);
- return (TCL_OK);
- }
- if (strcmp(argv[1], "attach") == 0) {
- int mode;
- const char* id = argv[2];
- Tcl_Channel ch = Tcl_GetChannel(tcl.interp(), (char*)id,
- &mode);
- pt_->channel(ch);
- if (pt_->channel() == 0) {
- tcl.resultf("trace: can't attach %s for writing", id);
- return (TCL_ERROR);
- }
- return (TCL_OK);
- }
- if (strcmp(argv[1], "namattach") == 0) {
- int mode;
- const char* id = argv[2];
- Tcl_Channel namch = Tcl_GetChannel(tcl.interp(),
- (char*)id, &mode);
- pt_->namchannel(namch);
- if (pt_->namchannel() == 0) {
- tcl.resultf("trace: can't attach %s for writing", id);
- return (TCL_ERROR);
- }
- return (TCL_OK);
- }
- if (strcmp(argv[1], "ntrace") == 0) {
- if (pt_->namchannel() != 0)
- write_nam_trace(argv[2]);
- return (TCL_OK);
- }
- if (strcmp(argv[1], "tagged") == 0) {
- int tag;
- if (Tcl_GetBoolean(tcl.interp(),
- (char*)argv[2], &tag) == TCL_OK) {
- pt_->tagged(tag);
- return (TCL_OK);
- } else return (TCL_ERROR);
- }
- }
- return (Connector::command(argc, argv));
- }
- void Trace::write_nam_trace(const char *s)
- {
- sprintf(pt_->nbuffer(), "%s", s);
- pt_->namdump();
- }
- void Trace::annotate(const char* s)
- {
- if (pt_->tagged()) {
- sprintf(pt_->buffer(),
- "v "TIME_FORMAT" -e {sim_annotation %g %s}",
- Scheduler::instance().clock(),
- Scheduler::instance().clock(), s);
- } else {
- sprintf(pt_->buffer(),
- "v "TIME_FORMAT" eval {set sim_annotation {%s}}",
- pt_->round(Scheduler::instance().clock()), s);
- }
- pt_->dump();
- callback();
- sprintf(pt_->nbuffer(), "v -t "TIME_FORMAT" -e sim_annotation %g %s",
- Scheduler::instance().clock(),
- Scheduler::instance().clock(), s);
- pt_->namdump();
- }
- char* srm_names[] = {
- SRM_NAMES
- };
- int
- Trace::get_seqno(Packet* p)
- {
- hdr_cmn *th = hdr_cmn::access(p);
- hdr_tcp *tcph = hdr_tcp::access(p);
- hdr_rtp *rh = hdr_rtp::access(p);
- hdr_rap *raph = hdr_rap::access(p);
- hdr_tfrc *tfrch = hdr_tfrc::access(p);
- hdr_tfrc_ack *tfrch_ack = hdr_tfrc_ack::access(p);
- packet_t t = th->ptype();
- int seqno;
- /* UDP's now have seqno's too */
- if (t == PT_RTP || t == PT_CBR || t == PT_UDP || t == PT_EXP ||
- t == PT_PARETO)
- seqno = rh->seqno();
- else if (t == PT_RAP_DATA || t == PT_RAP_ACK)
- seqno = raph->seqno();
- else if (t == PT_TCP || t == PT_ACK || t == PT_HTTP || t == PT_FTP ||
- t == PT_TELNET || t == PT_XCP)
- seqno = tcph->seqno();
- else if (t == PT_TFRC)
- seqno = tfrch->seqno;
- else if (t == PT_TFRC_ACK)
- seqno = tfrch_ack->seqno;
- else
- seqno = -1;
- return seqno;
- }
- // this function should retain some backward-compatibility, so that
- // scripts don't break.
- void Trace::format(int tt, int s, int d, Packet* p)
- {
- hdr_cmn *th = hdr_cmn::access(p);
- hdr_ip *iph = hdr_ip::access(p);
- hdr_tcp *tcph = hdr_tcp::access(p);
- hdr_sctp *sctph = hdr_sctp::access(p);
- hdr_srm *sh = hdr_srm::access(p);
- const char* sname = "null";
- packet_t t = th->ptype();
- const char* name = packet_info.name(t);
- /* SRM-specific */
- if (strcmp(name,"SRM") == 0 || strcmp(name,"cbr") == 0 || strcmp(name,"udp") == 0) {
- if ( sh->type() < 5 && sh->type() > 0 ) {
- sname = srm_names[sh->type()];
- }
- }
- if (name == 0)
- abort();
- int seqno = get_seqno(p);
- /*
- * When new flags are added, make sure to change NUMFLAGS
- * in trace.h
- */
- char flags[NUMFLAGS+1];
- for (int i = 0; i < NUMFLAGS; i++)
- flags[i] = '-';
- flags[NUMFLAGS] = 0;
- hdr_flags* hf = hdr_flags::access(p);
- flags[0] = hf->ecn_ ? 'C' : '-'; // Ecn Echo
- flags[1] = hf->pri_ ? 'P' : '-';
- flags[2] = '-';
- flags[3] = hf->cong_action_ ? 'A' : '-'; // Congestion Action
- flags[4] = hf->ecn_to_echo_ ? 'E' : '-'; // Congestion Experienced
- flags[5] = hf->fs_ ? 'F' : '-'; // Fast start: see tcp-fs and tcp-int
- flags[6] = hf->ecn_capable_ ? 'N' : '-';
- flags[7] = 0; // only for SCTP
- #ifdef notdef
- flags[1] = (iph->flags() & PF_PRI) ? 'P' : '-';
- flags[2] = (iph->flags() & PF_USR1) ? '1' : '-';
- flags[3] = (iph->flags() & PF_USR2) ? '2' : '-';
- flags[5] = 0;
- #endif
- char *src_nodeaddr = Address::instance().print_nodeaddr(iph->saddr());
- char *src_portaddr = Address::instance().print_portaddr(iph->sport());
- char *dst_nodeaddr = Address::instance().print_nodeaddr(iph->daddr());
- char *dst_portaddr = Address::instance().print_portaddr(iph->dport());
- if (pt_->tagged()) {
- sprintf(pt_->buffer(),
- "%c "TIME_FORMAT" -s %d -d %d -p %s -e %d -c %d -i %d -a %d -x {%s.%s %s.%s %d %s %s}",
- tt,
- Scheduler::instance().clock(),
- s,
- d,
- name,
- th->size(),
- iph->flowid(),
- th->uid(),
- iph->flowid(),
- src_nodeaddr,
- src_portaddr,
- dst_nodeaddr,
- dst_portaddr,
- seqno,flags,sname);
- } else if (show_sctphdr_ && t == PT_SCTP) {
- double timestamp;
- timestamp = Scheduler::instance().clock();
-
- for(unsigned int i = 0; i < sctph->NumChunks(); i++) {
- switch(sctph->SctpTrace()[i].eType) {
- case SCTP_CHUNK_INIT:
- case SCTP_CHUNK_INIT_ACK:
- case SCTP_CHUNK_COOKIE_ECHO:
- case SCTP_CHUNK_COOKIE_ACK:
- flags[7] = 'I'; // connection initialization
- break;
-
- case SCTP_CHUNK_DATA:
- flags[7] = 'D';
- break;
- case SCTP_CHUNK_SACK:
- flags[7] = 'S';
- break;
-
- case SCTP_CHUNK_FORWARD_TSN:
- flags[7] = 'R';
- break;
-
- case SCTP_CHUNK_HB:
- flags[7] = 'H';
- break;
- case SCTP_CHUNK_HB_ACK:
- flags[7] = 'B';
- break;
- default:
- assert (false);
- }
- sprintf(pt_->buffer(),
- "%c "TIME_FORMAT" %d %d %s %d %s %d %s.%s %s.%s %d %d %d %d %d",
- tt,
- pt_->round(timestamp),
- s,
- d,
- name,
- th->size(),
- flags,
- iph->flowid(), /* was p->class_ */
- src_nodeaddr,
- src_portaddr,
- dst_nodeaddr,
- dst_portaddr,
- sctph->NumChunks(),
- sctph->SctpTrace()[i].uiTsn,
- th->uid(), /* was p->uid_ */
- sctph->SctpTrace()[i].usStreamId,
- sctph->SctpTrace()[i].usStreamSeqNum);
- /* The caller already calls pt_->dump() for us,
- * but since SCTP needs to dump once per chunk, we
- * call dump ourselves for all but the last chunk.
- */
- assert (sctph->NumChunks() >= 1);
- if(i < sctph->NumChunks() - 1)
- pt_->dump();
- }
- } else if (!show_tcphdr_) {
- sprintf(pt_->buffer(), "%c "TIME_FORMAT" %d %d %s %d %s %d %s.%s %s.%s %d %d",
- tt,
- pt_->round(Scheduler::instance().clock()),
- s,
- d,
- name,
- th->size(),
- flags,
- iph->flowid() /* was p->class_ */,
- // iph->src() >> (Address::instance().NodeShift_[1]),
- // iph->src() & (Address::instance().PortMask_),
- // iph->dst() >> (Address::instance().NodeShift_[1]),
- // iph->dst() & (Address::instance().PortMask_),
- src_nodeaddr,
- src_portaddr,
- dst_nodeaddr,
- dst_portaddr,
- seqno,
- th->uid() /* was p->uid_ */);
- } else {
- sprintf(pt_->buffer(),
- "%c "TIME_FORMAT" %d %d %s %d %s %d %s.%s %s.%s %d %d %d 0x%x %d %d",
- tt,
- pt_->round(Scheduler::instance().clock()),
- s,
- d,
- name,
- th->size(),
- flags,
- iph->flowid(), /* was p->class_ */
- // iph->src() >> (Address::instance().NodeShift_[1]),
- // iph->src() & (Address::instance().PortMask_),
- // iph->dst() >> (Address::instance().NodeShift_[1]),
- // iph->dst() & (Address::instance().PortMask_),
- src_nodeaddr,
- src_portaddr,
- dst_nodeaddr,
- dst_portaddr,
- seqno,
- th->uid(), /* was p->uid_ */
- tcph->ackno(),
- tcph->flags(),
- tcph->hlen(),
- tcph->sa_length());
- }
- if (pt_->namchannel() != 0)
- sprintf(pt_->nbuffer(),
- "%c -t "TIME_FORMAT" -s %d -d %d -p %s -e %d -c %d -i %d -a %d -x {%s.%s %s.%s %d %s %s}",
- tt,
- Scheduler::instance().clock(),
- s,
- d,
- name,
- th->size(),
- iph->flowid(),
- th->uid(),
- iph->flowid(),
- src_nodeaddr,
- src_portaddr,
- dst_nodeaddr,
- dst_portaddr,
- seqno,flags,sname);
- delete [] src_nodeaddr;
- delete [] src_portaddr;
- delete [] dst_nodeaddr;
- delete [] dst_portaddr;
- }
- void Trace::recv(Packet* p, Handler* h)
- {
- format(type_, src_, dst_, p);
- pt_->dump();
- callback();
- pt_->namdump();
- /* hack: if trace object not attached to anything free packet */
- if (target_ == 0)
- Packet::free(p);
- else
- send(p, h);
- }
- void Trace::recvOnly(Packet *p)
- {
- format(type_, src_, dst_, p);
- pt_->dump();
- callback();
- pt_->namdump();
- target_->recvOnly(p);
- }
- void Trace::trace(TracedVar* var)
- {
- char tmp[256] = "";
- Scheduler& s = Scheduler::instance();
- if (&s == 0)
- return;
- if (pt_->tagged()) {
- sprintf(pt_->buffer(), "%c "TIME_FORMAT" -a %s -n %s -v %s",
- type_,
- pt_->round(s.clock()),
- var->owner()->name(),
- var->name(),
- var->value(tmp, 256));
- } else {
- // format: use Mark's nam feature code without the '-' prefix
- sprintf(pt_->buffer(), "%c t"TIME_FORMAT" a%s n%s v%s",
- type_,
- pt_->round(s.clock()),
- var->owner()->name(),
- var->name(),
- var->value(tmp, 256));
- }
- pt_->dump();
- callback();
- }
- void Trace::callback()
- {
- if (callback_) {
- Tcl& tcl = Tcl::instance();
- tcl.evalf("%s handle { %s }", name(), pt_->buffer());
- }
- }
- //
- // we need a DequeTraceClass here because a 'h' event need to go together
- // with the '-' event. It's possible to use a postprocessing script, but
- // seems that's inconvient.
- //
- static class DequeTraceClass : public TclClass {
- public:
- DequeTraceClass() : TclClass("Trace/Deque") { }
- TclObject* create(int args, const char*const* argv) {
- if (args >= 5)
- return (new DequeTrace(*argv[4]));
- return NULL;
- }
- } dequetrace_class;
- DequeTrace::~DequeTrace()
- {
- }
- void
- DequeTrace::recv(Packet* p, Handler* h)
- {
- // write the '-' event first
- format(type_, src_, dst_, p);
- pt_->dump();
- callback();
- pt_->namdump();
- if (pt_->namchannel() != 0 ||
- (pt_->tagged() && pt_->channel() !=0)) {
- hdr_cmn *th = hdr_cmn::access(p);
- hdr_ip *iph = hdr_ip::access(p);
- hdr_srm *sh = hdr_srm::access(p);
- const char* sname = "null";
- packet_t t = th->ptype();
- const char* name = packet_info.name(t);
-
- if (strcmp(name,"SRM") == 0 || strcmp(name,"cbr") == 0 || strcmp(name,"udp") == 0) {
- if ( sh->type() < 5 && sh->type() > 0 ) {
- sname = srm_names[sh->type()];
- }
- }
- char *src_nodeaddr = Address::instance().print_nodeaddr(iph->saddr());
- char *src_portaddr = Address::instance().print_portaddr(iph->sport());
- char *dst_nodeaddr = Address::instance().print_nodeaddr(iph->daddr());
- char *dst_portaddr = Address::instance().print_portaddr(iph->dport());
- char flags[NUMFLAGS+1];
- for (int i = 0; i < NUMFLAGS; i++)
- flags[i] = '-';
- flags[NUMFLAGS] = 0;
- hdr_flags* hf = hdr_flags::access(p);
- flags[0] = hf->ecn_ ? 'C' : '-'; // Ecn Echo
- flags[1] = hf->pri_ ? 'P' : '-';
- flags[2] = '-';
- flags[3] = hf->cong_action_ ? 'A' : '-'; // Congestion Action
- flags[4] = hf->ecn_to_echo_ ? 'E' : '-'; // Congestion Experienced
- flags[5] = hf->fs_ ? 'F' : '-';
- flags[6] = hf->ecn_capable_ ? 'N' : '-';
- flags[7] = 0; // only for SCTP
-
- #ifdef notdef
- flags[1] = (iph->flags() & PF_PRI) ? 'P' : '-';
- flags[2] = (iph->flags() & PF_USR1) ? '1' : '-';
- flags[3] = (iph->flags() & PF_USR2) ? '2' : '-';
- flags[5] = 0;
- #endif
-
- if (pt_->nbuffer() != 0) {
- sprintf(pt_->nbuffer(),
- "%c -t "TIME_FORMAT" -s %d -d %d -p %s -e %d -c %d -i %d -a %d -x {%s.%s %s.%s %d %s %s}",
- 'h',
- Scheduler::instance().clock(),
- src_,
- dst_,
- name,
- th->size(),
- iph->flowid(),
- th->uid(),
- iph->flowid(),
- src_nodeaddr,
- src_portaddr,
- dst_nodeaddr,
- dst_portaddr,
- -1, flags, sname);
- pt_->namdump();
- }
- if (pt_->tagged() && pt_->buffer() != 0) {
- sprintf(pt_->buffer(),
- "%c "TIME_FORMAT" -s %d -d %d -p %s -e %d -c %d -i %d -a %d -x {%s.%s %s.%s %d %s %s}",
- 'h',
- Scheduler::instance().clock(),
- src_,
- dst_,
- name,
- th->size(),
- iph->flowid(),
- th->uid(),
- iph->flowid(),
- src_nodeaddr,
- src_portaddr,
- dst_nodeaddr,
- dst_portaddr,
- -1, flags, sname);
- pt_->dump();
- }
- delete [] src_nodeaddr;
- delete [] src_portaddr;
- delete [] dst_nodeaddr;
- delete [] dst_portaddr;
- }
- /* hack: if trace object not attached to anything free packet */
- if (target_ == 0)
- Packet::free(p);
- else
- send(p, h);
- }