Re: [Ryu-devel] equivalent Ryu flow action to ovs "move:" or "copy_field"
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Re: [Ryu-devel] equivalent Ryu flow action to ovs "move:" or "copy_field"
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From: Takao M. <ma...@ma...> - 2015-10-14 05:45:30
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Hi Iwase, Your example works well. Thank you so much ! -------- Takao Magoori 2015-10-14 10:44 GMT+09:00 Yusuke Iwase <iwa...@gm...>: > Hi, > > First, OVS does not support OF1.5 enough. > So there are many TODO on OVS GitHub page. > https://github.com/openvswitch/ovs/blob/master/OPENFLOW-1.1%2B.md > > If you want to use NXActionRegMove, you can do it with OF1.3. > > e.g.) > match = parser.OFPMatch() > actions = [parser.NXActionRegMove('tunnel_id', 'vlan_vid', 12)] > insts = [parser.OFPInstructionActions( > ofproto.OFPIT_APPLY_ACTIONS, actions)] > mod = parser.OFPFlowMod(datapath, match=match, instructions=insts) > datapath.send_msg(mod) > > # ovs-ofctl dump-flows s1 > NXST_FLOW reply (xid=0x4): > cookie=0x0, duration=6.982s, table=0, n_packets=2, n_bytes=140, idle_age=5, actions=move:NXM_NX_TUN_ID[0..11]->OXM_OF_VLAN_VID[] > > Thanks, > Iwase > > > On 2015年10月13日 14:13, Takao Magoori wrote: >> Hi all, >> >> As follows, I want to send an OFPFlowMod message, which has an action >> to copy lower 12 bits tunnel_id into vlan_vid (On OVS, which is >> equivalent to"move:NXM_NX_TUN_ID[0..11]->NXM_OF_VLAN_TCI[0..11]" ). >> >> But in case of NXActionRegMove, OFPET_BAD_ACTION >> (OFPBAC_BAD_EXP_TYPE) error occurs. >> In case of OFPActionCopyField, OFPET_BAD_ACTION (OFPBAC_BAD_LEN) error occurs. >> Is there a way to do " move:src[start..end]->dst[start..end]" on Ryu >> application ? >> >> Ryu version: 3.26 >> >> #### ovs add-br command >> $ sudo ovs-vsctl --may-exist add-br testbr0 \ >> -- set bridge testbr0 protocols=OpenFlow15 fail-mode=secure \ >> -- set-controller testbr0 tcp:127.0.0.1:6633 >> >> >> ##### test application source code #### >> import functools >> from ryu.base import app_manager >> from ryu.controller import ofp_event >> from ryu.controller import handler >> from ryu.ofproto import ofproto_v1_5 >> >> OVS_IN_PORT = 0xfff8 >> >> class TestApp(app_manager.RyuApp): >> >> OFP_VERSIONS = [ofproto_v1_5.OFP_VERSION] >> >> @handler.set_ev_cls( >> ofp_event.EventOFPSwitchFeatures, >> handler.CONFIG_DISPATCHER, >> ) >> def handle_ovs_switch_features(self, event): >> datapath = event.msg.datapath >> ofproto = datapath.ofproto >> ofparser = datapath.ofproto_parser >> flow_mod_factory = functools.partial( >> ofparser.OFPFlowMod, >> datapath=datapath, >> # cookie=0xf00, >> command=ofproto.OFPFC_ADD, >> ) >> apply_actions_factory = functools.partial( >> ofparser.OFPInstructionActions, >> type_=ofproto.OFPIT_APPLY_ACTIONS, >> ) >> >> datapath.send_msg( >> flow_mod_factory( >> table_id=0, >> priority=100, >> match=ofparser.OFPMatch( >> tunnel_id=(1 << 12, 0xfff << 12), >> ), >> instructions=[ >> apply_actions_factory(actions=[ >> ofparser.OFPActionPushVlan(), >> ofparser.OFPActionSetField( >> vlan_pcp=1, >> ), >> ofparser.NXActionRegMove( >> src_field='tunnel_id', src_ofs=0, >> dst_field='vlan_vid', dst_ofs=0, >> n_bits=12, >> ), >> # ofparser.OFPActionCopyField( >> # n_bits=12, >> # src_offset=0, >> # dst_offset=0, >> # oxm_ids=[ >> # ofparser.OFPOxmId('tunnel_id'), >> # ofparser.OFPOxmId('vlan_vid'), >> # ] >> # ), >> ofparser.NXActionResubmitTable( >> in_port=OVS_IN_PORT, >> table_id=20, >> ), >> ]), >> ], >> ), >> ) >> return >> >> >> #### error message (in case of NXActionRegMove) >> # ryu-manager --verbose testmanager >> loading app testmanager >> loading app ryu.controller.ofp_handler >> instantiating app testmanager of TestApp >> instantiating app ryu.controller.ofp_handler of OFPHandler >> BRICK TestApp >> CONSUMES EventOFPSwitchFeatures >> BRICK ofp_event >> PROVIDES EventOFPSwitchFeatures TO {'TestApp': {'config'}} >> CONSUMES EventOFPSwitchFeatures >> CONSUMES EventOFPPortDescStatsReply >> CONSUMES EventOFPEchoRequest >> CONSUMES EventOFPErrorMsg >> CONSUMES EventOFPHello >> connected socket:<eventlet.greenio.base.GreenSocket object at >> 0x7f911f9dd2b0> address:('127.0.0.1', 56714) >> hello ev <ryu.controller.ofp_event.EventOFPHello object at 0x7f911f9e6d68> >> move onto config mode >> EVENT ofp_event->TestApp EventOFPSwitchFeatures >> switch features ev >> version=0x6,msg_type=0x6,msg_len=0x20,xid=0xd2da111d,OFPSwitchFeatures(auxiliary_id=0,capabilities=79,datapath_id=183359575435075,n_buffers=256,n_tables=254) >> EventOFPErrorMsg received. >> version=0x6, msg_type=0x1, msg_len=0x24, xid=0xd2da111f >> `-- msg_type: OFPT_ERROR(1) >> OFPErrorMsg(type=0x1, code=0x6, >> data=b'\x06\x12\x00\x18\xd2\xda\x11\x1f\x00\x0d\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\x00\x00\x00\x00') >> |-- type: OFPET_BAD_REQUEST(1) >> |-- code: OFPBRC_BAD_LEN(6) >> `-- data: version=0x6, msg_type=0x12, msg_len=0x18, xid=0xd2da111f >> `-- msg_type: OFPT_MULTIPART_REQUEST(18) >> EventOFPErrorMsg received. >> version=0x6, msg_type=0x1, msg_len=0x4c, xid=0xd2da1120 >> `-- msg_type: OFPT_ERROR(1) >> OFPErrorMsg(type=0x2, code=0x3, >> data=b'\x06\x0e\x00\x90\xd2\xda\x11\x20\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x64\xff\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x18\x80\x00\x4d\x10\x00\x00\x00\x00\x00\x00\x10\x00') >> |-- type: OFPET_BAD_ACTION(2) >> |-- code: OFPBAC_BAD_EXP_TYPE(3) >> `-- data: version=0x6, msg_type=0xe, msg_len=0x90, xid=0xd2da1120 >> `-- msg_type: OFPT_FLOW_MOD(14) >> >> >> #### error message (in case of OFPActionCopyField) >> # ryu-manager --verbose testmanager >> loading app testmanager >> loading app ryu.controller.ofp_handler >> instantiating app ryu.controller.ofp_handler of OFPHandler >> instantiating app testmanager of TestApp >> BRICK ofp_event >> PROVIDES EventOFPSwitchFeatures TO {'TestApp': {'config'}} >> CONSUMES EventOFPHello >> CONSUMES EventOFPSwitchFeatures >> CONSUMES EventOFPPortDescStatsReply >> CONSUMES EventOFPEchoRequest >> CONSUMES EventOFPErrorMsg >> BRICK TestApp >> CONSUMES EventOFPSwitchFeatures >> connected socket:<eventlet.greenio.base.GreenSocket object at >> 0x7f1a38512278> address:('127.0.0.1', 56730) >> hello ev <ryu.controller.ofp_event.EventOFPHello object at 0x7f1a3851fd68> >> move onto config mode >> EVENT ofp_event->TestApp EventOFPSwitchFeatures >> switch features ev >> version=0x6,msg_type=0x6,msg_len=0x20,xid=0xb8fb0c3c,OFPSwitchFeatures(auxiliary_id=0,capabilities=79,datapath_id=121704233743943,n_buffers=256,n_tables=254) >> EventOFPErrorMsg received. >> version=0x6, msg_type=0x1, msg_len=0x24, xid=0xb8fb0c3e >> `-- msg_type: OFPT_ERROR(1) >> OFPErrorMsg(type=0x1, code=0x6, >> data=b'\x06\x12\x00\x18\xb8\xfb\x0c\x3e\x00\x0d\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\x00\x00\x00\x00') >> |-- type: OFPET_BAD_REQUEST(1) >> |-- code: OFPBRC_BAD_LEN(6) >> `-- data: version=0x6, msg_type=0x12, msg_len=0x18, xid=0xb8fb0c3e >> `-- msg_type: OFPT_MULTIPART_REQUEST(18) >> EventOFPErrorMsg received. >> version=0x6, msg_type=0x1, msg_len=0x4c, xid=0xb8fb0c3f >> `-- msg_type: OFPT_ERROR(1) >> OFPErrorMsg(type=0x2, code=0x1, >> data=b'\x06\x0e\x00\x88\xb8\xfb\x0c\x3f\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x64\xff\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x18\x80\x00\x4d\x10\x00\x00\x00\x00\x00\x00\x10\x00') >> |-- type: OFPET_BAD_ACTION(2) >> |-- code: OFPBAC_BAD_LEN(1) >> `-- data: version=0x6, msg_type=0xe, msg_len=0x88, xid=0xb8fb0c3f >> `-- msg_type: OFPT_FLOW_MOD(14) >> >> ------------------------------------------------------------------------------ >> _______________________________________________ >> Ryu-devel mailing list >> Ryu...@li... >> https://lists.sourceforge.net/lists/listinfo/ryu-devel >> |
