From 7286b2518ec8e4398b512ce95def9166a7af2e4a Mon Sep 17 00:00:00 2001 From: Deepak S Date: Thu, 13 Jul 2017 21:26:50 -0700 Subject: Adding PROX(Packet pROcessing eXecution engine) VNF to sampleVNF JIRA: SAMPLEVNF-55 PROX is a DPDK-based application implementing Telco use-cases such as a simplified BRAS/BNG, light-weight AFTR... It also allows configuring finer grained network functions like QoS, Routing, load-balancing... (We are moving PROX version v039 to sampleVNF https://01.org/intel-data-plane-performance-demonstrators/prox-overview) Change-Id: Ia3cb02cf0e49ac5596e922c197ff7e010293d033 Signed-off-by: Deepak S --- VNFs/DPPD-PROX/tools/flow_extract/pcapreader.cpp | 76 ++++++++++++++++++++++++ 1 file changed, 76 insertions(+) create mode 100644 VNFs/DPPD-PROX/tools/flow_extract/pcapreader.cpp (limited to 'VNFs/DPPD-PROX/tools/flow_extract/pcapreader.cpp') diff --git a/VNFs/DPPD-PROX/tools/flow_extract/pcapreader.cpp b/VNFs/DPPD-PROX/tools/flow_extract/pcapreader.cpp new file mode 100644 index 00000000..6b5a6734 --- /dev/null +++ b/VNFs/DPPD-PROX/tools/flow_extract/pcapreader.cpp @@ -0,0 +1,76 @@ +/* +// 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 +#include +#include + +#include "pcapreader.hpp" + +int PcapReader::open(const string& file_path) +{ + char err_str[PCAP_ERRBUF_SIZE]; + + if (m_handle) { + m_error = "Pcap file already open"; + return -1; + } + + m_handle = pcap_open_offline_with_tstamp_precision(file_path.c_str(), + PCAP_TSTAMP_PRECISION_NANO, + err_str); + + if (!m_handle) { + m_error = "Failed to open pcap file"; + return -1; + } + + m_file_beg = ftell(pcap_file(m_handle)); + fseek(pcap_file(m_handle), 0, SEEK_END); + m_file_end = ftell(pcap_file(m_handle)); + fseek(pcap_file(m_handle), m_file_beg, SEEK_SET); + + return 0; +} + +int PcapReader::readOnce(PcapPkt *pkt, uint64_t pos) +{ + return -1; +} + +int PcapReader::read(PcapPkt *pkt) +{ + if (!m_handle) { + m_error = "No pcap file opened"; + } + + const uint8_t *buf = pcap_next(m_handle, &pkt->header); + + if (buf) { + memcpy(pkt->buf, buf, pkt->header.len); + pktReadCount++; + } + + return !!buf; +} + +void PcapReader::close() +{ + if (m_handle) + pcap_close(m_handle); + + m_handle = NULL; +} -- cgit 1.2.3-korg