dummynet loses ports mask bits

[Luigi Rizzo]

On Tue, Feb 28, 2017 at 9:27 AM, Julian Elischer <julian at freebsd.org> wrote:
> In the following example it appears that the mask bits for the port number
> are lost.
> before I raise a bug.. is there anyone who can see that I am doing anything
> wrong?
>
> I'm not sure what the q131053 stuff is about either, but..

q131053 is the internal name for the queue associated with the pipe
(pipe# + 0x10000).
I am not sure if the mask supports ip/port notation (dst-ip covers
only the address part).
Of course the real bug is that the parser should be more strict and complain
about extra/ignored fields. But the ipfw parser is full of these things.

cheers
luigi

> ------------------------------------------
> FreeBSD fb10-cc03.kumo.com 10.3-RELEASE-p16 : Wed Feb 22 14:40:53 UTC 2017
> amd64
>
> fb10-cc03# ipfw pipe 11 config mask dst-ip 0x000000ff/0x0fff bw 200Kbit/s
>
> fb10-cc03# ipfw pipe show
> 00011: 200.000 Kbit/s    0 ms burst 0
> q131083  50 sl. 0 flows (1 buckets) sched 65547 weight 0 lmax 0 pri 0
> droptail
>  sched 65547 type FIFO flags 0x1 64 buckets 0 active
>     mask:  0x00 0x00000000/0x0000 -> 0x000000ff/0x0000
>



-- 
-----------------------------------------+-------------------------------
 Prof. Luigi RIZZO, rizzo at iet.unipi.it  . Dip. di Ing. dell'Informazione
 http://www.iet.unipi.it/~luigi/        . Universita` di Pisa
 TEL      +39-050-2217533               . via Diotisalvi 2
 Mobile   +39-338-6809875               . 56122 PISA (Italy)
-----------------------------------------+-------------------------------