Hi
Thank you for fast reply. I need decision of message type because I would to
implement a state machine based on that decision: arriving of packetOut to
switch.
In fact, I would to intercept PktOut. And how to do with @set_ev_cls()?
Maurizio.
________________________________
Da: Shinpei Muraoka <shinpei.mura...@gmail.com>
Inviato: martedì 13 settembre 2016 04.59
A: soldie...@hotmail.it; ryu-devel@lists.sourceforge.net
Oggetto: Re: [Ryu-devel] Ho to extract message type (e.g. pktIN/pktOut) from
OpenFlow v1.3 header structure?
Hi,
sorry. I responded a difficult answer.
The following is example of the message type check.
diff --git a/ryu/app/simple_switch_13.py b/ryu/app/simple_switch_13.py
index 3e7c598..89dedb9 100644
--- a/ryu/app/simple_switch_13.py
+++ b/ryu/app/simple_switch_13.py
@@ -76,6 +76,9 @@ class SimpleSwitch13(app_manager.RyuApp):
parser = datapath.ofproto_parser
in_port = msg.match['in_port']
+ self.logger.info("msg.msg_type == ofproto.OFPT_PACKET_IN : %s",
+ msg.msg_type == ofproto.OFPT_PACKET_IN)
+
pkt = packet.Packet(msg.data)
eth = pkt.get_protocols(ethernet.ethernet)[0]
Message type for the check is defined in ofproto/ofproto_v1_3.py.
Why do you need a decision of the message type?
I think it can check of message type by @set_ev_cls().
Thanks,
On 2016?09?12? 20:50, Maurizio Marrocco wrote:
> Hi, Shinpei. Sorry if I'm disturbing.
> I read the documentation
> (http://ryu.readthedocs.io/en/latest/ofproto_base.html#base-class-for-openflow-messages)
> but could not find examples of how to pick the type of message from the
> header OpenFlow.
> You could give me a hand? For example in simple_switch_13.py script, how
> can I use the class: class ryu.ofproto.ofproto_parser.MsgBase (* args,
> ** kwargs) to take msg_type == pktOut ?
> Thanks so much.
> Maurizio
>
>
>
>
>
> ------------------------------------------------------------------------
> *Da:* Shinpei Muraoka <shinpei.mura...@gmail.com>
> *Inviato:* lunedì 12 settembre 2016 03.15
> *A:* soldie...@hotmail.it; ryu-devel@lists.sourceforge.net;
> ryu-devel@lists.sourceforge.net
> *Oggetto:* Re: [Ryu-devel] Ho to extract message type (e.g.
> pktIN/pktOut) from OpenFlow v1.3 header structure?
>
> Hi,
>
> Please refer to the following for extraction method of the type of
> OpenFlow message.
> http://ryu.readthedocs.io/en/latest/ofproto_base.html#base-class-for-openflow-messages
>
> Also, Please refer to the chapter 7.1.1 of OpenFlow Spec version 1.3.5
> for the type of OpenFlow message.
>
> Thanks,
>
> On 2016?09?10? 22:55, Maurizio Marrocco wrote:
>> Hi Ryu team.
>> The question is the following: How to extract message ofp_type (e.g.
>> OFPT_PACKET_OUT or OFPT_PACKET_IN) from openflow v1.3 ofp_header structure?
>> I would to do this statement:
>>
>> if(header(received PDU)==PacketOut)
>> do something.
>>
>> Have some reference in the documentation about this and in general to
>> process the packets?
>> PS: I'm using RYU 3.29
>> Thanks.
>> Maurizio.
>>
>>
>>
>> ------------------------------------------------------------------------------
>>
>>
>>
>> _______________________________________________
>> Ryu-devel mailing list
>> Ryu-devel@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/ryu-devel
>>
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