Hi, You said you want the Checksum and Timestamp. 1. Timestamp as i said could be achieved from nfq_get_timestamp, 2. Checksum could be achieved from the tcphdr, 3. Data length could be computed with iphdr(get the data length - tcp header length ) ... I guess that if you want to get the other options, you could just use the tcphdr, and address the wanted members of the struct... 2010/11/14 Igor 'Lo' (И.L.) <bombsiteunrested@xxxxxxxxx>: > Hi, > which .h contains a correct struct tcp? I guess it is tcphdr from > netinet/tcp.h, which only gives a doff (whole header length), so have > to get payload, skip header length and read the options by byte? > > 2010/11/14 Yechiel Levi <gmistick@xxxxxxxxx>: >> Hi, >> >> You should use the nfq_handle_packet method, and in the callback it >> activates use a casting of tcp struct on the payload (nfq_get_payload >> method) >> >> timestamp can be achieved from netfilter using the : >> nfq_get_timestamp (struct nfq_data *nfad, struct timeval *tv) >> > cheer, > Igor. > -- Kind Regards, Yechiel Levi -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
