On Fri, 2 Aug 2013 14:41:51 +0900
Satoshi Kobayashi <[email protected]> wrote:
> Hi,
>
> I tried OpenFlow 1.3 on my application, I have noticed that it becomes an
> error.
> "OFP_VERSIONS = [ofproto_v1_3.OFP_VERSION]"
>
> The trace is following:
> hub: uncaught exception: Traceback (most recent call last):
> File
> "/home/satoshi/.virtualenvs/ryu-2.2/lib/python2.6/site-packages/ryu/lib/hub.py",
> line 48, in _launch
> func(*args, **kwargs)
> File
> "/home/satoshi/.virtualenvs/ryu-2.2/lib/python2.6/site-packages/ryu/base/app_manager.py",
> line 110, in _event_loop
> handler(ev)
> File
> "/home/satoshi/.virtualenvs/ryu-2.2/lib/python2.6/site-packages/ryu/controller/dpset.py",
> line 166, in switch_features_handler
> datapath.ports = msg.ports
> AttributeError: 'OFPSwitchFeatures' object has no attribute 'ports'
>
> When DPSet acquires a port information from EventOFPSwitchFeatures
> instance, this happens. I checked the code and OpenFlow protocol spec,
> "struct ofp_port" is not contained in "struct ofp_switch_features" in
> version 1.3. Maybe how to acquire a port information changed to another
> method. (Although I am not detailed about OpenFlow protocol in binary
> level, I may misunderstand some)
Yeah, With 1.3, you neee to use port desc stats.
The above is a known issue and dpset.py is kinda legacy code, however,
I guess that there are developers who use it with OF1.3.
Can you try the following?
diff --git a/ryu/controller/dpset.py b/ryu/controller/dpset.py
index c172aec..0bb3b98 100644
--- a/ryu/controller/dpset.py
+++ b/ryu/controller/dpset.py
@@ -163,7 +163,9 @@ class DPSet(app_manager.RyuApp):
def switch_features_handler(self, ev):
msg = ev.msg
datapath = msg.datapath
- datapath.ports = msg.ports
+ # ofp_handler.py does the following so we could remove...
+ if datapath.ofproto.OFP_VERSION < 0x04:
+ datapath.ports = msg.ports
@set_ev_cls(ofp_event.EventOFPPortStatus, handler.MAIN_DISPATCHER)
def port_status_handler(self, ev):
diff --git a/ryu/controller/ofp_handler.py b/ryu/controller/ofp_handler.py
index 84e4d74..642cec8 100644
--- a/ryu/controller/ofp_handler.py
+++ b/ryu/controller/ofp_handler.py
@@ -191,6 +191,8 @@ class OFPHandler(ryu.base.app_manager.RyuApp):
# while.
if datapath.ofproto.OFP_VERSION < 0x04:
datapath.ports = msg.ports
+ else:
+ datapath.ports = {}
ofproto = datapath.ofproto
ofproto_parser = datapath.ofproto_parser
@@ -200,6 +202,23 @@ class OFPHandler(ryu.base.app_manager.RyuApp):
)
datapath.send_msg(set_config)
+ if datapath.ofproto.OFP_VERSION < 0x04:
+ self.logger.debug('move onto main mode')
+ ev.msg.datapath.set_state(MAIN_DISPATCHER)
+ else:
+ port_desc = datapath.ofproto_parser.OFPPortDescStatsRequest(
+ datapath, 0)
+ datapath.send_msg(port_desc)
+
+ @set_ev_handler(ofp_event.EventOFPPortDescStatsReply, CONFIG_DISPATCHER)
+ def multipart_reply_handler(self, ev):
+ msg = ev.msg
+ datapath = msg.datapath
+ for port in msg.body:
+ datapath.ports[port.port_no] = port
+
+ if msg.flags & datapath.ofproto.OFPMPF_REPLY_MORE:
+ return
self.logger.debug('move onto main mode')
ev.msg.datapath.set_state(MAIN_DISPATCHER)
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