Hi
I am extracting information from packets using this and generating packets
using proto=150 from Scapy tool and trying to aggregate all the packets in
a list for specific time:-
self.mac_to_port = {}
self.start_time = time.time()
self.data = []
self.data_size = 0
# get ipv4 packet
ipv4_packet = pkt.get_protocol(ipv4.ipv4)
if ipv4_packet:
proto = ipv4_packet.proto
total_len = ipv4_packet.total_length
source=ipv4_packet.src
destination= ipv4_packet.dst
print "INFORMATION:", proto
print total_len
print "source address", source
else:
proto = total_len = 0
dpid = datapath.id
self.mac_to_port.setdefault(dpid, {})
self.logger.info("packet in %s %s %s %s", dpid, src, dst,
in_port)
if proto == 150 and total_len <= 128:
elapsed_time = time.time() - self.start_time
elapsed_time = 0
data = msg.data
self.data.append(data)
self.data_size += total_len
elapsed_time = time.time() - self.start_time
print "ELAPSED: ", elapsed_time
print "BUFFER: ", self.iot_data
if elapsed_time > 10 or self.data_size >= 1000:
out_port = ofproto.OFPP_FLOOD
actions = [parser.OFPActionOutput(out_port)]
data = ''.join(self.data)
self.data = []
print "BUFFER: ", self.data
self.data_size = 0
self.start_time = time.time()
out = parser.OFPPacketOut(datapath=datapath,
buffer_id=ofproto.OFP_NO_BUFFER,
in_port=in_port, actions=actions,
data=msg.data)
datapath.send_msg(out)
Here is the verbose output:-
[root@host3 app]# ryu-manager --verbose simple_switch_13.py
loading app simple_switch_13.py
loading app ryu.controller.ofp_handler
instantiating app simple_switch_13.py of SimpleSwitch13
instantiating app ryu.controller.ofp_handler of OFPHandler
BRICK SimpleSwitch13
CONSUMES EventOFPPacketIn
CONSUMES EventOFPSwitchFeatures
BRICK ofp_event
PROVIDES EventOFPPacketIn TO {'SimpleSwitch13': set(['main'])}
PROVIDES EventOFPSwitchFeatures TO {'SimpleSwitch13': set(['config'])}
CONSUMES EventOFPErrorMsg
CONSUMES EventOFPPortDescStatsReply
CONSUMES EventOFPEchoRequest
CONSUMES EventOFPHello
CONSUMES EventOFPSwitchFeatures
connected socket:<eventlet.greenio.base.GreenSocket object at 0x2142710>
address:('192.168.1.101', 43530)
hello ev <ryu.controller.ofp_event.EventOFPHello object at 0x2142cd0>
move onto config mode
EVENT ofp_event->SimpleSwitch13 EventOFPSwitchFeatures
switch features ev
version=0x4,msg_type=0x6,msg_len=0x20,xid=0xfc786a28,OFPSwitchFeatures(auxiliary_id=0,capabilities=79,datapath_id=207120314010642,n_buffers=256,n_tables=254)
move onto main mode
Thanks
Sheenam
On Tue, Apr 4, 2017 at 8:03 AM, Iwase Yusuke <iwase.yusu...@gmail.com>
wrote:
> Hi,
>
> Could you send more information?
> e.g., what modification you have, log message of ryu-manager with
> "--verbose" option.
>
> Thanks,
> Iwase
>
>
> On 2017年04月04日 03:39, Attitude Killer wrote:
> > Hi
> >
> > I modified simple_switch_13.py a bit and when I run , it hangs the
> remote host on which openvswitch is running and when I stop application
> then host starts working again.
> >
> > Can anyone please guide me through this?
> >
> > Thanks in advance
> >
> >
> > Sheenam
> >
> >
> >
> >
> >
> > ------------------------------------------------------------
> ------------------
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> >
> >
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> >
>
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