hi, i want to modify the eth_dst but failed.
Firstly, I wrote one function to add the flow entry( all of the flowing
codes are used in OF v1.3):
def add_flow_entry(dpid,match,priority,actions):
url = "http://127.0.0.1:8080/stats/flowentry/add";
post_data = "{'dpid':%s,'match':%s,'priority':%s,'actions':%s}" %
(dpid,str(match),priority,str(actions))
req = urllib2.Request(url,post_data)
res = urllib2.urlopen(req)
return res.getcode()
and i use the flowing code to call it:
actions =
[{'type':'SET_FIELD','eth_dst':eth_src},{'type':'OUTPUT','port':in_port}]
match = {'eth_type':0x0800, 'ipv4_dst':src_ip}
priority = "2222"
#I have got the dpid but it's not written here
res = add_flow_entry(dpid,match,priority,actions)
Then i got the error informatioin:
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/eventlet/wsgi.py", line 384,
in handle_one_response
result = self.application(self.environ, start_response)
File "/usr/local/lib/python2.7/dist-packages/ryu/app/wsgi.py", line
197, in __call__
return super(wsgify_hack, self).__call__(environ, start_response)
File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 130, in __call__
resp = self.call_func(req, *args, **self.kwargs)
File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 195, in call_func
return self.func(req, *args, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/ryu/app/wsgi.py", line
259, in __call__
return controller(req)
File "/usr/local/lib/python2.7/dist-packages/ryu/app/wsgi.py", line
121, in __call__
return getattr(self, action)(req, **kwargs)
File "/home/ocean/KuaiPan/ryu-master/ryu/app/ofctl_rest.py", line
357, in mod_flow_entry
ofctl_v1_3.mod_flow_entry(dp, flow, cmd)
File "/usr/local/lib/python2.7/dist-packages/ryu/lib/ofctl_v1_3.py",
line 942, in mod_flow_entry
inst = to_actions(dp, flow.get('actions', []))
File "/usr/local/lib/python2.7/dist-packages/ryu/lib/ofctl_v1_3.py",
line 108, in to_actions
action = to_action(dp, a)
File "/usr/local/lib/python2.7/dist-packages/ryu/lib/ofctl_v1_3.py",
line 89, in to_action
result = parser.OFPActionSetField(**{field: value})
TypeError: __init__() keywords must be strings
127.0.0.1 - - [26/Jan/2015 19:41:17] "POST /stats/flowentry/add
HTTP/1.1" 500 1596 0.013896
EVENT ofp_event->switches EventOFPPacketIn
EVENT ofp_event->Imisa EventOFPPacketIn
hub: uncaught exception: Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/ryu/lib/hub.py", line
52, in _launch
func(*args, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/ryu/base/app_manager.py",
line 274, in _event_loop
handler(ev)
File "/home/ocean/KuaiPan/imisa/imisa.py", line 106, in packet_in_handler
res = add_flow_entry(dpid,match,priority,actions)
File "/home/ocean/KuaiPan/imisa/restapi.py", line 41, in add_flow_entry
res = urllib2.urlopen(req)
File "/usr/lib/python2.7/urllib2.py", line 127, in urlopen
return _opener.open(url, data, timeout)
File "/usr/lib/python2.7/urllib2.py", line 410, in open
response = meth(req, response)
File "/usr/lib/python2.7/urllib2.py", line 523, in http_response
'http', request, response, code, msg, hdrs)
File "/usr/lib/python2.7/urllib2.py", line 448, in error
return self._call_chain(*args)
File "/usr/lib/python2.7/urllib2.py", line 382, in _call_chain
result = func(*args)
File "/usr/lib/python2.7/urllib2.py", line 531, in http_error_default
raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)
HTTPError: HTTP Error 500: Internal Server Error
i'm still working on it but have not find it out yet. Is there anyone met
this problem before? Thx
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