[Click] Custom aggregate element

[Roberto Riggio]

BTW,

is there a way, besides the write_text_file handler, to get a list of 
the aggregated counters? Consider that I'm using the element in a router 
configuration in order to get some statistics about the packet types 
sent over a certain wireless interface.

R.

On 18/07/2011 14:11, Roberto Riggio wrote:
> Hi,
>
> I wrote a very simple element, starting from aggregatelen that sets the
> aggregate annotation to a value specified in a packet field. The core
> function is the following:
>
> Packet *
> AggregateWingPacketType::handle_packet(Packet *p)
> {
>       click_ether *eh = (click_ether *) p->data();
>       struct wing_header *pk = (struct wing_header *) (eh + 1);
>       uint8_t type = pk->_type;
>       SET_AGGREGATE_ANNO(p, type);
>       return p;
> }
>
> The chain i'm using in the click configuration is the following:
>
> ->  AggregateWingPacketType() ->  count :: AggregateCounter() ->
>
> however if I call the handler:
>
> write count.write_text_file -
>
> i get an empty output although packets are flowing trough the
> AggregateWingPacketType element.
>
> Is there any particular requirement on the packets flowing trough the
> AggregateCounter element? (in my case the ip header is not set)
>
> Thanks
>
> R.
>


-- 
--------------------------------------------------------
Roberto Riggio, Ph.D.
CREATE-NET
Network & Security Solutions for Pervasive Computing Systems (iNSPIRE)
Senior Researcher
Via alla Cascata 56/D - 38123 Povo Trento (Italy)
e-mail: roberto.riggio at create-net.org
Tel: (+39) 0461 408400 - interno/extension 708
Fax: (+39) 0461 421157
www.create-net.org/~rriggio
--------------------------------------------------------

The information transmitted is intended only for the person or entity to
which it is addressed and may contain confidential and/or privileged
material. Any review, retransmission, dissemination or other use of, or
taking of any action in reliance upon, this information by persons or
entities other than the intended recipient is prohibited according to
the Italian Law 196/2003 of the Legislature. If you received this in
error, please contact the sender and delete the material from any
computer.

Le informazioni contenute in questo messaggio di posta elettronica e nei
file allegati sono da considerarsi strettamente riservate. Il loro
utilizzo e' consentito esclusivamente al destinatario del messaggio, per
le finalita' indicate nel messaggio stesso. Qualora riceveste questo
messaggio senza esserne il destinatario, Vi preghiamo cortesemente di
darcene notizia via e-mail e di procedere alla cancellazione del
messaggio stesso dal Vostro sistema. Trattenere il messaggio stesso,
divulgarlo anche in parte, distribuirlo ad altri soggetti, copiarlo,
od utilizzarlo per finalita' diverse, costituisce comportamento
contrario ai principi dettati dal D. Lgs. 196/2003.