Re: Request: New Link Type for IEEE 802.15.4 TAP

[James Ko <jck () exegin com>]

Thanks.

Created PR for libpcap and tcpdump.  Wireshark changes pending.
https://github.com/the-tcpdump-group/libpcap/pull/803
https://github.com/the-tcpdump-group/tcpdump/pull/734

The existing DLTs for IEEE 802.15.4 have versions for FCS, NOFCS,
NONASK_PHY, and LINUX (address fields padded).
The NONASK_PHY includes only fixed preamble bytes, and the FCS/NOFCS
versions support for heuristic match for ZBOSS generated format again with
some fixed fields.  The proposed format attempts to wrap up the different
types into one and provide an extensible TLV format for capture devices to
provide additional meta-data.

James





On Fri, Feb 15, 2019 at 9:45 AM Michael Richardson <mcr () sandelman ca> wrote:

> James Ko <jck () exegin com> wrote:
>     > Is there something blocking my request?  Concerns that I may address
> to get
>     > an assignment?
>
> I don't recall seeing it last week, sorry.
>
>     > On Fri, Feb 8, 2019 at 3:37 PM James Ko <jck () exegin com> wrote:
>
>     >> Please assign a new DLT_/LINKTYPE_ value for IEEE802_15_4_TAP
> packets.
>     >>
>     >> The IEEE 802.15.4 TAP packet format proposal is in
>     >> https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=15429.
>     >>
>     >> IEEE 802.15.4 defines both PHY and MAC layers and the proposed
> format
>     >> enables the sniffer/tap device to provide additional information
> from both
>     >> layers.
>
> 1) You are welcome to send pull request!
> 2) I see that Guy has engaged your ticket.  I could have sworn we already
> had
>    802.15.4 DLT that could take a variety of extra data.
>
> --
> ]               Never tell me the odds!                 | ipv6 mesh
> networks [
> ]   Michael Richardson, Sandelman Software Works        |    IoT
> architect   [
> ]     mcr () sandelman ca  http://www.sandelman.ca/        |   ruby on
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