def send_flow_stats_request(self, dpid, match):
"""Send a flow stats request to a switch (dpid).
@param dpid - datapath/switch to contact
@param match - ofp_match structure
"""
"""
# The API here is *UGLY*.
Should be able to do smth like 'send_flowstats_request(dpid, match)'
"""
# Create the stats request header
request = of.ofp_stats_request()
#TODO: replace with real XID code
if not hasattr(self, 'xid'):
xid = 9238
else:
xid = getattr(self, 'xid')
if xid >= 0xFFffFFfe:
xid = 9238
setattr(self, 'xid', xid + 1)
log.debug( "sending flow stats request xid: %d", xid )
request.header.xid = xid
request.header.type = openflow.OFPT_STATS_REQUEST
request.type = openflow.OFPST_FLOW
request.flags = 0
# Create the stats request body
body = of.ofp_flow_stats_request()
body.match = match
body.table_id = 0xff
body.out_port = openflow.OFPP_NONE
request.header.length = len(request.pack()) + len(body.pack())
self.pending_query_xid = self.send_openflow_command(dpid, \
request.pack() + body.pack())
return xid
def send_flow_stats_request(self, dpid, match):
"""Send a flow stats request to a switch (dpid).
@param dpid - datapath/switch to contact
@param match - ofp_match structure
"""
"""
# The API here is *UGLY*.
Should be able to do smth like 'send_flowstats_request(dpid, match)'
"""
# Create the stats request header
request = of.ofp_stats_request()
#TODO: replace with real XID code
if not hasattr(self, 'xid'):
xid = 9238
else:
xid = getattr(self, 'xid')
if xid >= 0xFFffFFfe:
xid = 9238
setattr(self, 'xid', xid + 1)
log.debug("sending flow stats request xid: %d", xid)
request.header.xid = xid
request.header.type = openflow.OFPT_STATS_REQUEST
request.type = openflow.OFPST_FLOW
request.flags = 0
# Create the stats request body
body = of.ofp_flow_stats_request()
body.match = match
body.table_id = 0xff
body.out_port = openflow.OFPP_NONE
request.header.length = len(request.pack()) + len(body.pack())
self.pending_query_xid = self.send_openflow_command(dpid, \
request.pack() + body.pack())
return xid
def send_flow_stats_request(self, dpid, match, table_id, xid=-1):
"""Send a flow stats request to a switch (dpid).
@param dpid - datapath/switch to contact
@param match - ofp_match structure
@param table_id - table to query
"""
# Create the stats request header
request = of.ofp_stats_request()
if xid == -1:
request.header.xid = c_htonl(long(self.collection_epoch))
else:
request.header.xid = c_htonl(xid)
request.header.type = openflow.OFPT_STATS_REQUEST
request.type = openflow.OFPST_FLOW
request.flags = 0
# Create the stats request body
body = of.ofp_flow_stats_request()
body.match = match
body.table_id = table_id
body.out_port = openflow.OFPP_NONE
request.header.length = len(request.pack()) + len(body.pack())
self.send_openflow_command(dpid, request.pack() + body.pack())
def send_flow_stats_request(self, dpid, match, table_id, xid=-1):
"""Send a flow stats request to a switch (dpid).
@param dpid - datapath/switch to contact
@param match - ofp_match structure
@param table_id - table to query
"""
# Create the stats request header
request = of.ofp_stats_request()
if xid == -1:
request.header.xid = c_htonl(long(self.sg.collection_epoch))
else:
request.header.xid = c_htonl(xid)
request.header.type = openflow.OFPT_STATS_REQUEST
request.type = openflow.OFPST_FLOW
request.flags = 0
# Create the stats request body
body = of.ofp_flow_stats_request()
body.match = match
body.table_id = table_id
body.out_port = openflow.OFPP_NONE
request.header.length = len(request.pack()) + len(body.pack())
self.send_openflow_command(dpid, request.pack() + body.pack())
