[pox-dev] adding a new action to a message

[adria sole]

Thank you Murphy for the information, I solved my error.

Now I am trying to create my own action but I get:

ERROR:openflow.of_01:[00-23-20-12-b2-91 1] OpenFlow Error:
[00-23-20-12-b2-91 1] Error: header:
[00-23-20-12-b2-91 1] Error:   version: 1
[00-23-20-12-b2-91 1] Error:   type:    1 (OFPT_ERROR)
[00-23-20-12-b2-91 1] Error:   length:  108
[00-23-20-12-b2-91 1] Error:   xid:     7825
[00-23-20-12-b2-91 1] Error: type: OFPET_BAD_ACTION (2)
[00-23-20-12-b2-91 1] Error: code: OFPBAC_BAD_TYPE (0)
[00-23-20-12-b2-91 1] Error: datalen: 96

I created in libopenflow_01.py my:

@openflow_action('OFPAT_SET_COMPTADOR', 12)
class ofp_action_comptador (ofp_action_base):
...
Its code is a copy of class ofp_action_dl_addr (ofp_action_base)


And I try to run in my app:
msg.actions.append(of.ofp_action_comptador.set_dst(EthAddr("01:02:03:04:05:06")))

I think it is because I missed some part of code in another file or in the
same libopenflow_01.py, or because I put my own type_val and action_type
that are defined somewhere where I cannot find...

Do you know where is the mistake?

Thank you in advance,

Adrià


2013/7/11 adria sole <adriasole at gmail.com>

> Thank you very much for your answer, I have solved my problem, now I will
> try adding my  own action and after that trying to create my own openflow
> message.
>
> Yesterday I looked for the solution through the Wiki and I saw the section "Set
> Ethernet source or destination address" but I didn't see
>    action = ofp_action_dl_addr.set_dst(EthAddr("01:02:03:04:05:06")) :S
>
>  Ty!
>
>
> 2013/7/10 Murphy McCauley <murphy.mccauley at gmail.com>
>
>> There are two problems with your code.
>>
>> First, in POX, Ethernet addresses should be instances of EthAddr (and IP
>> addresses should be instances of IPAddr).  That is, don't use the raw
>> string "00:00:00:00:00:00" -- use EthAddr("00:00:00:00:00:00").
>>
>> Second, if you look up ofp_action_dl_addr in the spec, you'll see that it
>> also has a "type" field which tells whether it's supposed to be rewriting
>> the source or destination address.  You haven't specified this.  The
>> recommended way of creating a rewrite action is not to create an
>> ofp_action_dl_addr directly, but to use one of the two factory functions --
>> ofp_action_dl_addr.set_dst() and ofp_action_dl_addr.set_src().
>>
>> There's an example of this in the POX wiki in the section "Set Ethernet
>> source or destination address".
>>
>> -- Murphy
>>
>> On Jul 10, 2013, at 10:07 AM, adria sole wrote:
>>
>> > Hi all,
>> >
>> > I want to add two actions to a packet when a new flow appears, the
>> default one is output (to an indicated port but I want for example adding a
>> second one like:
>> >
>> >
>> > msg.actions.append(of.ofp_action_dl_addr(dl_addr = "00:00:00:00:00:00"))
>> >
>> >
>> > But I am getting an error like:
>> >
>> > ERROR:core:Exception while handling Connection!PacketIn...
>> > Traceback (most recent call last):
>> >   File "/home/adria/Descargas/pox/pox/lib/revent/revent.py", line 234,
>> in raiseEventNoErrors
>> >     return self.raiseEvent(event, *args, **kw)
>> >   File "/home/adria/Descargas/pox/pox/lib/revent/revent.py", line 281,
>> in raiseEvent
>> >     rv = event._invoke(handler, *args, **kw)
>> >   File "/home/adria/Descargas/pox/pox/lib/revent/revent.py", line 159,
>> in _invoke
>> >     return handler(self, *args, **kw)
>> >   File "/home/adria/Descargas/pox/ext/my_component.py", line 207, in
>> _handle_PacketIn
>> >     self.connection.send(msg)
>> >   File "/home/adria/Descargas/pox/pox/openflow/of_01.py", line 690, in
>> send
>> >     data = data.pack()
>> >   File "/home/adria/Descargas/pox/pox/openflow/libopenflow_01.py", line
>> 2275, in pack
>> >     packed += i.pack()
>> >   File "/home/adria/Descargas/pox/pox/openflow/libopenflow_01.py", line
>> 1746, in pack
>> >     packed += struct.pack("!HH", self.type, len(self))
>> > error: cannot convert argument to integer
>> >
>> > What I am doing wrong? I have seen that there is a self.dl_addr in
>> class ofp_action_dl_addr (ofp_action_base): in libopenflow_01.py
>> >
>> > But I don't understand how is the code executing, how to they pass the
>> parameters?
>> >
>> > Ty in advance
>>
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.noxrepo.org/pipermail/pox-dev-noxrepo.org/attachments/20130711/4b1fd770/attachment-0002.htm>