4b2118ed4b
Remove this unnecessary dependency. Fixed all incorrect includes of sim/core.hh. Change-Id: I3ae282dbaeb45fbf4630237a3ab9b1a593ffbe0c Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br> Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/43592 Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com> Tested-by: kokoro <noreply+kokoro@google.com>
111 lines
3.5 KiB
C++
111 lines
3.5 KiB
C++
/*
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* Copyright (c) 2002-2005 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 "dev/net/etherdump.hh"
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#include <sys/time.h>
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#include <algorithm>
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#include <string>
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#include "base/logging.hh"
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#include "base/output.hh"
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#include "sim/core.hh"
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#include "sim/cur_tick.hh"
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using std::string;
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namespace gem5
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{
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EtherDump::EtherDump(const Params &p)
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: SimObject(p), stream(simout.create(p.file, true)->stream()),
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maxlen(p.maxlen)
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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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{
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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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{
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uint32_t seconds;
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uint32_t microseconds;
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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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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 = 0;
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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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stream->flush();
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}
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void
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EtherDump::dumpPacket(EthPacketPtr &packet)
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{
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pcap_pkthdr pkthdr;
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pkthdr.seconds = curTick() / sim_clock::as_int::s;
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pkthdr.microseconds = (curTick() / sim_clock::as_int::us) % 1000000ULL;
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pkthdr.caplen = std::min(packet->length, maxlen);
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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), pkthdr.caplen);
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stream->flush();
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}
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} // namespace gem5
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