tcpdump mailing list archives
Re: Scanning IP6 packets
From: Michael Richardson <mcr () sandelman ca>
Date: Thu, 14 Nov 2013 19:36:48 -0500
Darren Reed <darrenr () netbsd org> wrote: >> That's cool... >> >> > that are chained together in this fashion. In its current form, BPF >> (v1) is > not that IPv6 friendly. Give me a week or two to back up a >> design with some > code that works (the parser and compiler bit are >> the tricky pieces.) >> >> True. I assume you are adding kind of limited loop capability. Could >> it be unrolled to some depth to work with BPFv1? > No. For analysing IPv6 you don't need loops, rather you need some much > more complex instructions than BPF's RISC design has at present. Key > to that are "find header number X" or "what is the last header" as okay, I would call these "limited loops", in that they can only iterate through the packet under specific conditions :-) Thank you for working on this. Getting new BPF code widely deployed won't be easy. -- ] Never tell me the odds! | ipv6 mesh networks [ ] Michael Richardson, Sandelman Software Works | network architect [ ] mcr () sandelman ca http://www.sandelman.ca/ | ruby on rails [ _______________________________________________ tcpdump-workers mailing list tcpdump-workers () lists tcpdump org https://lists.sandelman.ca/mailman/listinfo/tcpdump-workers
Current thread:
- Scanning IP6 packets Steve (Nov 12)
- Re: Scanning IP6 packets Guy Harris (Nov 13)
- Re: SPAM-LOW: Re: Scanning IP6 packets Steve (Nov 13)
- Re: Scanning IP6 packets Darren Reed (Nov 14)
- Re: Scanning IP6 packets Michael Richardson (Nov 14)
- Re: Scanning IP6 packets Darren Reed (Nov 14)
- Re: Scanning IP6 packets Michael Richardson (Nov 14)
- Re: Scanning IP6 packets Guy Harris (Nov 13)