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/*
// Copyright (c) 2010-2017 Intel Corporation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
*/
#include <fstream>
#include <arpa/inet.h>
#include "halfstream.hpp"
HalfStream::Action::Part HalfStream::addPkt(const PcapPkt &pkt)
{
const uint32_t pktId = pkts.size();
const uint8_t *l5;
uint32_t l5Len;
uint16_t tmpHdrLen;
const struct PcapPkt::tcp_hdr *tcp;
struct pkt_tuple pt = pkt.parsePkt((const uint8_t **)&tcp, &tmpHdrLen, &l5, &l5Len);
if (pt.proto_id == IPPROTO_TCP) {
if (tcp->tcp_flags & 0x02)
tcpOpen = true;
if (tcp->tcp_flags & 0x01)
tcpClose = true;
}
if (pkts.empty()) {
first = pkt.ts();
hdrLen = tmpHdrLen;
memcpy(hdr, pkt.payload(), hdrLen);
}
last = pkt.ts();
totLen += pkt.len();
contentLen += l5Len;
pkts.push_back(pkt);
return Action::Part(pktId, l5 - pkt.payload(), l5Len);
}
double HalfStream::getRate() const
{
if (pkts.empty())
return 0;
if (first == last)
return 1250000000;
return totLen / (last - first);
}
HalfStream::Action::Action(HalfStream* stream, const Part &p, bool isClient)
: halfStream(stream), m_isClient(isClient)
{
addPart(p);
}
void HalfStream::Action::addPart(const Part &p)
{
parts.push_back(p);
}
uint32_t HalfStream::Action::totLen() const
{
uint32_t ret = 0;
for (list<Part>::const_iterator i = parts.begin(); i != parts.end(); ++i) {
ret += (*i).len;
}
return ret;
}
void HalfStream::Action::toFile(ofstream *f) const
{
for (list<Part>::const_iterator i = parts.begin(); i != parts.end(); ++i) {
const PcapPkt &pkt = halfStream->pkts[i->pktId];
const uint8_t *payload = &pkt.payload()[i->offset];
const uint16_t len = i->len;
f->write((const char *)payload, len);
}
}
HalfStream::HalfStream()
: first(0, 0), last(0, 0), totLen(0), hdrLen(0), contentLen(0), tcpOpen(false), tcpClose(false)
{
}
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