I am testing the ZC (without license, it print on screen) , it is receiving the
packets that I sent from the other host, but it always return 0 content from
the pfring_parse_pkt() .
1) This is how I capture the packet, and extract the ip in ZC:
if (pfring_zc_recv_pkt(zq_, &buffers_array_[0], 0) > 0)
{
pfring_parse_pkt(pfring_zc_pkt_buff_data(buffers_array_[0],
zq_), &hdr, 5, 0, 1);
std::cout << "ip_src:" <<
print_ip(byte_swap(hdr.extended_hdr.parsed_pkt.ip_src.v4)) << " l4_src_port: "
<< hdr.extended_hdr.parsed_pkt.l4_src_port << "
ip_dst:" << print_ip(byte_swap(hdr.extended_hdr.parsed_pkt.ip_dst.v4))
<< " l4_dst_port: " <<
hdr.extended_hdr.parsed_pkt.l4_dst_port << std::endl;
}
The output is always no matter where the message came from:
ip_src:0.0.0.0 l4_src_port: 0 ip_dst:0.0.0.0 l4_dst_port: 0
2) In Venilia PF_RING, it work very well which mean it actually print out the
src and dst IPs properly:
if (pfring_recv(pd_, &buf, 0, &hdr, wait_for_packet_))
{
pfring_parse_pkt(buf, &hdr, 5, 0, 1);
std::cout << "ip_src:" <<
print_ip(byte_swap(hdr.extended_hdr.parsed_pkt.ip_src.v4)) <<
" l4_src_port: " <<
hdr.extended_hdr.parsed_pkt.l4_src_port <<
" ip_dst:" <<
print_ip(byte_swap(hdr.extended_hdr.parsed_pkt.ip_dst.v4)) <<
" l4_dst_port: " <<
hdr.extended_hdr.parsed_pkt.l4_dst_port <<std::endl;
}
B.R
Bryan
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