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)
------------------------------------------------------------------------------
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