Hi Max & group, > As you can see in netinet/in_proto.c, tcp does not use pr_output, but > calls > tcp_output() directly where needed. Depending on what you want to achive > it > might be enough to hack up tcp_usr_send() and replace tcp_usrreqs.pru_send > instead. Replaceing tcp_output() is not easily possible. You could start > with telling us what you *really* want to do so we can point you to a > workable option.
Right, I'll start by telling you what I'm actually trying to achieve. Everytime an IP datagram with a TCP header is sent, I want to mangle (i.e. modify) part of the TCP packet and it's payload with 'random' data. Although this may sound a bit pointless, I want to do this to implement a form of dumb fuzzing, which is a form of stress testing used a lot in computer security. Does that make a bit of sense? So I was attempting to modify the pr_output hook for TCP (which I now know isn't possible) and replace it with a ptr to my own hacked tcp_output routine. Can you see a way to do what I'm trying to achieve? Cheers, shaun _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "[EMAIL PROTECTED]"
