2db1b6ea1b
statStream catchall that we had before)
Also provide an optional output directory that multiple simulator output
files can be written to.
Make most output files use the output directory
base/misc.cc:
send warnings to the outputStream as well
base/trace.cc:
dprintf_stream defaults to cerr
dev/console.cc:
use the output directory for the console output if it exists
dev/etherdump.cc:
dump to the output directory if it exists
sim/builder.cc:
sim/builder.hh:
move constructor and destructor to .cc file
use a function to get the stream that the builder dumps its
output to, and create a separate file in the output directory
if able
sim/main.cc:
statStream -> outputStream
sim/serialize.cc:
dump checkpoints to the output directory if specified
sim/universe.cc:
provide an output stream for simulator output. (This takes place of the
statStream catchall that we had before)
Also provide an optional output directory that multiple simulator output
files can be written to.
--HG--
extra : convert_revision : 03abce20edbbf7ec19c9ddd8d69ec8485c383532
153 lines
4.5 KiB
C++
153 lines
4.5 KiB
C++
/*
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* Copyright (c) 2003 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* @file
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* Simple object for creating a simple pcap style packet trace
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*/
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#include <sys/time.h>
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#include <string>
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#include "dev/etherdump.hh"
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#include "sim/builder.hh"
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#include "sim/universe.hh"
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using std::string;
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EtherDump::EtherDump(const string &name, const string &file)
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: SimObject(name)
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{
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if (!file.empty()) {
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stream.open(file.c_str());
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if (stream.is_open())
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init();
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}
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}
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#define DLT_EN10MB 1 // Ethernet (10Mb)
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#define TCPDUMP_MAGIC 0xa1b2c3d4
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#define PCAP_VERSION_MAJOR 2
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#define PCAP_VERSION_MINOR 4
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struct pcap_file_header {
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uint32_t magic;
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uint16_t version_major;
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uint16_t version_minor;
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int32_t thiszone; // gmt to local correction
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uint32_t sigfigs; // accuracy of timestamps
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uint32_t snaplen; // max length saved portion of each pkt
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uint32_t linktype; // data link type (DLT_*)
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};
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struct pcap_pkthdr {
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struct timeval ts; // time stamp
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uint32_t caplen; // length of portion present
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uint32_t len; // length this packet (off wire)
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};
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void
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EtherDump::init()
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{
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curtime = time(NULL);
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s_freq = ticksPerSecond;
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us_freq = ticksPerSecond / ULL(1000000);
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struct pcap_file_header hdr;
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hdr.magic = TCPDUMP_MAGIC;
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hdr.version_major = PCAP_VERSION_MAJOR;
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hdr.version_minor = PCAP_VERSION_MINOR;
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hdr.thiszone = -5 * 3600;
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hdr.snaplen = 1500;
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hdr.sigfigs = 0;
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hdr.linktype = DLT_EN10MB;
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stream.write(reinterpret_cast<char *>(&hdr), sizeof(hdr));
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/*
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* output an empty packet with the current time so that we know
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* when the simulation began. This allows us to correlate packets
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* to sim_cycles.
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*/
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pcap_pkthdr pkthdr;
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pkthdr.ts.tv_sec = curtime;
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pkthdr.ts.tv_usec = 0;
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pkthdr.caplen = 0;
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pkthdr.len = 0;
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stream.write(reinterpret_cast<char *>(&pkthdr), sizeof(pkthdr));
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stream.flush();
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}
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void
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EtherDump::dumpPacket(PacketPtr packet)
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{
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pcap_pkthdr pkthdr;
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pkthdr.ts.tv_sec = curtime + (curTick / s_freq);
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pkthdr.ts.tv_usec = (curTick / us_freq) % ULL(1000000);
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pkthdr.caplen = packet->length;
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pkthdr.len = packet->length;
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stream.write(reinterpret_cast<char *>(&pkthdr), sizeof(pkthdr));
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stream.write(reinterpret_cast<char *>(packet->data), packet->length);
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stream.flush();
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}
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BEGIN_DECLARE_SIM_OBJECT_PARAMS(EtherDump)
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Param<string> file;
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END_DECLARE_SIM_OBJECT_PARAMS(EtherDump)
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BEGIN_INIT_SIM_OBJECT_PARAMS(EtherDump)
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INIT_PARAM(file, "file to dump packets to")
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END_INIT_SIM_OBJECT_PARAMS(EtherDump)
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CREATE_SIM_OBJECT(EtherDump)
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{
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string filename;
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if (file.isValid()) {
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filename = file;
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if (filename[0] != '/' && !outputDirectory.empty())
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filename = outputDirectory + filename;
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} else {
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if (outputDirectory.empty()) {
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filename = "etherdump";
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} else {
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filename = outputDirectory + "etherdump";
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}
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}
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return new EtherDump(getInstanceName(), filename);
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}
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REGISTER_SIM_OBJECT("EtherDump", EtherDump)
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