Thanks Jason,
Using dictionary to store Match object gives me what I want. Your
recommendation works perfect.
2016-05-16 8:58 GMT-07:00 Jason Kölker <ja...@koelker.net>:
> On Mon, May 16, 2016 at 12:53 PM, hüseyin temiz <hsynte...@gmail.com>
> wrote:
> > ----------------------------------------------------------------------
> > #CODE
> > match = parser.OFPMatch(in_port=1, eth_type=0x0800, ipv4_src="10.0.0.1",
> > ipv4_dst="10.0.0.2", ip_proto=17, udp_dst=5555)
> > self.logger.info(" MATCH ------>%s \n",match)
> >
> > match['in_port']=2
> >
> > self.logger.info(" EDITED_PART %s \n",match['in_port'])
> >
> > self.logger.info(" EDITED_MATCH ------>%s \n",match)
> > ----------------------------------------------------------------------
> > #OUTPUT
> >
> > MATCH ------>OFPMatch(oxm_fields={'ipv4_dst': '10.0.0.2', 'ipv4_src':
> > '10.0.0.1', 'eth_type': 2048, 'ip_proto': 17, 'udp_dst': 5555, 'in_port':
> > 1})
> >
> > EDITED_PART 1
> >
> > GIVEN ERROR:
> > File "/home/ubuntu/PycharmProjects/696/shortest_route.py", line 556, in
> > _packet_in_handler
> > match['in_port']=2
> > TypeError: 'OFPMatch' object does not support item assignment
> >
> > ----------------------------------------------------------------------
> > --
>
> You can use the Match API to set fields
>
> https://github.com/osrg/ryu/blob/master/ryu/ofproto/ofproto_v1_3_parser.py#L1290-L1528
> .
>
> But I generally try to avoid it, I would recommend you store your
> match in a dict and then create Match objects from it right before you
> send your flows:
>
> from ryu.lib.packet import ether_types
> from ryu.lib.packet import in_proto as inet
>
>
> kwargs = dict(in_port=1, eth_type=ether_types.ETH_TYPE_IP,
> ipv4_src='10.0.0.1', ipv4_dst='10.0.0.2',
> ip_proto=inet.IPPROTO_UDP, udp_dst=5555)
> match1 = parser.OFPMatch(**kwargs)
> kwargs['in_port'] = 2
> match2 = parser.OFPMatch(**kwargs)
>
> Happy Hacking!
>
> 7-11
>
--
Hüseyin TEMİZ
Computer Engineering
Boğazici University
http://www.ilkyar.org.tr/
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