Hi,
On 2016年12月20日 14:18, Garegin Grigoryan wrote:
> Hi,
>
> What is the best way to parse UDP segments in ryu controller? I want to see
> the application data.
> I've tried this but it doesn't work:
>
> udp_parser = stream_parser.StreamParser()
> print udp_parser.parse(msg.data)
Does "msg.data" mean the packet data of PacketIn message?
The packet data of PacketIn message is the ethernet frame.
So you can use packet.Packet() instead.
e.g.)
from ryu.lib.packet import packet
from ryu.lib.packet import ethernet
from ryu.lib.packet import udp
...(snip)
pkt = packet.Packet(msg.data)
udp_pkt = pkt.get_protocol(udp.udp)
if udp_pkt:
# do something
...(snip)
Thanks,
Iwase
>
> TypeError: Can't instantiate abstract class StreamParser with abstract
> methods try_parse
>
>
> --
> Sincerely,
> Garegin Grigoryan
>
>
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