On Wed, Mar 06, 2013 at 11:54:00AM +0900, OHMURA Kei wrote:
> This gets a netflow packet and sends it to the other
> applications. Each application can use this to get netflow
> messages as an event.
>
> Signed-off-by: OHMURA Kei <ohmura....@lab.ntt.co.jp>
> ---
> ryu/flags.py | 8 +++++-
> ryu/lib/xflow/netflow_collector.py | 54
> ++++++++++++++++++++++++++++++++++++
> 2 files changed, 61 insertions(+), 1 deletion(-)
> create mode 100644 ryu/lib/xflow/netflow_collector.py
>
> diff --git a/ryu/flags.py b/ryu/flags.py
> index 533f7de..4a0a2d7 100644
> --- a/ryu/flags.py
> +++ b/ryu/flags.py
> @@ -40,5 +40,11 @@ CONF.register_cli_opts([
> 'context'),
> cfg.StrOpt('quantum-controller-addr', default=None,
> help='openflow method:address:port to set controller of'
> - 'ovs bridge')
> + 'ovs bridge'),
> +
> + # lib/xflow/netflow_collector
> + cfg.StrOpt('netflow-listen-host', default='',
> + help='netflow listen host'),
> + cfg.IntOpt('netflow-listen-port', default=2055,
> + help='netflow listen port')
> ])
Now this can be in ryu/lib/xflow/netflow_collector.py.
openstack-derived cfg is capable of reevaluating options when loading module.
thanks,
> diff --git a/ryu/lib/xflow/netflow_collector.py
> b/ryu/lib/xflow/netflow_collector.py
> new file mode 100644
> index 0000000..cf1e34b
> --- /dev/null
> +++ b/ryu/lib/xflow/netflow_collector.py
> @@ -0,0 +1,54 @@
> +# Copyright (C) 2013 Nippon Telegraph and Telephone Corporation.
> +#
> +# Licensed under the Apache License, Version 2.0 (the "License");
> +# you may not use this file except in compliance with the License.
> +# You may obtain a copy of the License at
> +#
> +# http://www.apache.org/licenses/LICENSE-2.0
> +#
> +# Unless required by applicable law or agreed to in writing, software
> +# distributed under the License is distributed on an "AS IS" BASIS,
> +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
> +# implied.
> +# See the License for the specific language governing permissions and
> +# limitations under the License.
> +
> +
> +import gevent
> +
> +from oslo.config import cfg
> +from gevent import socket
> +from ryu.base import app_manager
> +from ryu.controller import event
> +from ryu.lib.xflow import netflow
> +
> +
> +CONF = cfg.CONF
> +BUFSIZE = 65535 # Should we use flexible length?
> +
> +
> +class EventNetFlow(event.EventBase):
> + def __init__(self, msg, addrport):
> + super(EventNetFlow, self).__init__()
> + self.msg = msg
> + self.addr, self.port = addrport
> +
> +
> +class NetFlowCollector(app_manager.RyuApp):
> + def __init__(self):
> + super(NetFlowCollector, self).__init__()
> + self.name = 'netflow_collector'
> + self._start_recv()
> +
> + def _recv_loop(self):
> + while True:
> + (data, addrport) = self.sock.recvfrom(BUFSIZE)
> + msg = netflow.NetFlow.parser(data)
> + if msg:
> + self.send_event_to_observers(EventNetFlow(msg, addrport))
> +
> + def _start_recv(self):
> + self.sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
> + self.sock.bind((CONF.netflow_listen_host,
> + CONF.netflow_listen_port))
> + gevent.spawn_later(0, self._recv_loop)
> --
> 1.7.9.5
>
>
> ------------------------------------------------------------------------------
> Symantec Endpoint Protection 12 positioned as A LEADER in The Forrester
> Wave(TM): Endpoint Security, Q1 2013 and "remains a good choice" in the
> endpoint security space. For insight on selecting the right partner to
> tackle endpoint security challenges, access the full report.
> http://p.sf.net/sfu/symantec-dev2dev
> _______________________________________________
> Ryu-devel mailing list
> Ryu-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/ryu-devel
>
--
yamahata
------------------------------------------------------------------------------
Symantec Endpoint Protection 12 positioned as A LEADER in The Forrester
Wave(TM): Endpoint Security, Q1 2013 and "remains a good choice" in the
endpoint security space. For insight on selecting the right partner to
tackle endpoint security challenges, access the full report.
http://p.sf.net/sfu/symantec-dev2dev
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