Hi, I try to hack a simple demo program to forward each packet received by nflog. I'm creating two rules: Â/sbin/ebtables --table broute --append BROUTING -i eth0 --nflog-group 5 --jump DROP /sbin/ebtables --table broute --append BROUTING --jump DROP Then I run a listener on group 5. In order to send the packet I need the hw header and the payload. I can get them like this: nflog_get_msg_packet_hwhdr(nfa) payload_len = nflog_get_payload(nfa, &payload); To send I use write: write(rawsock, pkt, pkt_len) The problem is that the hardware header and the payload are not one after the other in the memory, so I need to concatenate them to new buffer. This seems non intuitive for me, so I'm asking here. There are 6 bytes between the hw header and the payload in the memory. Those 6 bytes in between look like this in hex: 0000 2000 0900 Is it possible to concatenate two buffers to send as one packet? Sending those two buffers one after the other looks like two packets and not one. Thanks, Kfir -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
