| /* |
| Copyright 2020 the original author or authors. |
| |
| Licensed under the Apache License, Version 2.0 (the "License"); |
| you may not use this file except in compliance with the License. |
| You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| */ |
| |
| package openflow |
| |
| import ( |
| "context" |
| "encoding/json" |
| ofp "github.com/donNewtonAlpha/goloxi/of13" |
| "github.com/opencord/voltha-lib-go/v3/pkg/log" |
| "github.com/opencord/voltha-protos/v3/go/openflow_13" |
| "github.com/opencord/voltha-protos/v3/go/voltha" |
| ) |
| |
| var oxmMap = map[string]int32{ |
| "in_port": 0, |
| "in_phy_port": 1, |
| "metadata": 2, |
| "eth_dst": 3, |
| "eth_src": 4, |
| "eth_type": 5, |
| "vlan_vid": 6, |
| "vlan_pcp": 7, |
| "ip_dscp": 8, |
| "ip_ecn": 9, |
| "ip_proto": 10, |
| "ipv4_src": 11, |
| "ipv4_dst": 12, |
| "tcp_src": 13, |
| "tcp_dst": 14, |
| "udp_src": 15, |
| "udp_dst": 16, |
| "sctp_src": 17, |
| "sctp_dst": 18, |
| "icmpv4_type": 19, |
| "icmpv4_code": 20, |
| "arp_op": 21, |
| "arp_spa": 22, |
| "arp_tpa": 23, |
| "arp_sha": 24, |
| "arp_tha": 25, |
| "ipv6_src": 26, |
| "ipv6_dst": 27, |
| "ipv6_flabel": 28, |
| "icmpv6_type": 29, |
| "icmpv6_code": 30, |
| "ipv6_nd_target": 31, |
| "ipv6_nd_sll": 32, |
| "ipv6_nd_tll": 33, |
| "mpls_label": 34, |
| "mpls_tc": 35, |
| "mpls_bos": 36, |
| "pbb_isid": 37, |
| "tunnel_id": 38, |
| "ipv6_exthdr": 39, |
| } |
| |
| func (ofc *OFClient) handleFlowAdd(flowAdd *ofp.FlowAdd) { |
| if logger.V(log.DebugLevel) { |
| js, _ := json.Marshal(flowAdd) |
| logger.Debugw("handleFlowAdd called", |
| log.Fields{ |
| "device-id": ofc.DeviceID, |
| "params": js}) |
| } |
| |
| if ofc.VolthaClient == nil { |
| logger.Errorw("no-voltha-connection", |
| log.Fields{"device-id": ofc.DeviceID}) |
| return |
| } |
| |
| // Construct the match |
| var oxmList []*voltha.OfpOxmField |
| for _, oxmField := range flowAdd.Match.GetOxmList() { |
| name := oxmMap[oxmField.GetOXMName()] |
| val := oxmField.GetOXMValue() |
| field := voltha.OfpOxmOfbField{Type: voltha.OxmOfbFieldTypes(name)} |
| ofpOxmField := voltha.OfpOxmField{ |
| OxmClass: ofp.OFPXMCOpenflowBasic, |
| Field: &openflow_13.OfpOxmField_OfbField{OfbField: &field}, |
| } |
| switch voltha.OxmOfbFieldTypes(name) { |
| case voltha.OxmOfbFieldTypes_OFPXMT_OFB_IN_PORT: |
| field.Value = &voltha.OfpOxmOfbField_Port{ |
| Port: uint32(val.(ofp.Port)), |
| } |
| case voltha.OxmOfbFieldTypes_OFPXMT_OFB_IN_PHY_PORT: |
| field.Value = &voltha.OfpOxmOfbField_PhysicalPort{ |
| PhysicalPort: val.(uint32), |
| } |
| case voltha.OxmOfbFieldTypes_OFPXMT_OFB_METADATA: |
| field.Value = &voltha.OfpOxmOfbField_TableMetadata{ |
| TableMetadata: val.(uint64), |
| } |
| case voltha.OxmOfbFieldTypes_OFPXMT_OFB_ETH_TYPE: |
| field.Value = &voltha.OfpOxmOfbField_EthType{ |
| EthType: uint32(val.(ofp.EthernetType)), |
| } |
| case voltha.OxmOfbFieldTypes_OFPXMT_OFB_IP_PROTO: |
| field.Value = &voltha.OfpOxmOfbField_IpProto{ |
| IpProto: uint32(val.(ofp.IpPrototype)), |
| } |
| case voltha.OxmOfbFieldTypes_OFPXMT_OFB_UDP_SRC: |
| field.Value = &voltha.OfpOxmOfbField_UdpSrc{ |
| UdpSrc: uint32(val.(uint16)), |
| } |
| case voltha.OxmOfbFieldTypes_OFPXMT_OFB_UDP_DST: |
| field.Value = &voltha.OfpOxmOfbField_UdpDst{ |
| UdpDst: uint32(val.(uint16)), |
| } |
| case voltha.OxmOfbFieldTypes_OFPXMT_OFB_VLAN_VID: |
| field.Value = &voltha.OfpOxmOfbField_VlanVid{ |
| VlanVid: uint32((val.(uint16) & 0xfff) | 0x1000), |
| } |
| } |
| oxmList = append(oxmList, &ofpOxmField) |
| } |
| |
| // Construct the instructions |
| var instructions []*voltha.OfpInstruction |
| for _, ofpInstruction := range flowAdd.GetInstructions() { |
| instructionType := ofpInstruction.GetType() |
| instruction := voltha.OfpInstruction{Type: uint32(instructionType)} |
| switch instructionType { |
| case ofp.OFPITGotoTable: |
| instruction.Data = &openflow_13.OfpInstruction_GotoTable{ |
| GotoTable: &openflow_13.OfpInstructionGotoTable{ |
| TableId: uint32(ofpInstruction.(ofp.IInstructionGotoTable).GetTableId()), |
| }, |
| } |
| case ofp.OFPITWriteMetadata: |
| instruction.Data = &openflow_13.OfpInstruction_WriteMetadata{ |
| WriteMetadata: &openflow_13.OfpInstructionWriteMetadata{ |
| Metadata: ofpInstruction.(ofp.IInstructionWriteMetadata).GetMetadata(), |
| MetadataMask: ofpInstruction.(ofp.IInstructionWriteMetadata).GetMetadataMask(), |
| }, |
| } |
| case ofp.OFPITWriteActions: |
| var ofpActions []*openflow_13.OfpAction |
| for _, action := range ofpInstruction.(ofp.IInstructionWriteActions).GetActions() { |
| ofpActions = append(ofpActions, extractAction(action)) |
| } |
| instruction.Data = &openflow_13.OfpInstruction_Actions{ |
| Actions: &openflow_13.OfpInstructionActions{ |
| Actions: ofpActions, |
| }, |
| } |
| case ofp.OFPITApplyActions: |
| var ofpActions []*openflow_13.OfpAction |
| for _, action := range ofpInstruction.(ofp.IInstructionApplyActions).GetActions() { |
| ofpActions = append(ofpActions, extractAction(action)) |
| } |
| instruction.Data = &openflow_13.OfpInstruction_Actions{ |
| Actions: &openflow_13.OfpInstructionActions{ |
| Actions: ofpActions, |
| }, |
| } |
| case ofp.OFPITMeter: |
| instruction.Data = &openflow_13.OfpInstruction_Meter{ |
| Meter: &openflow_13.OfpInstructionMeter{ |
| MeterId: ofpInstruction.(ofp.IInstructionMeter).GetMeterId(), |
| }, |
| } |
| } |
| instructions = append(instructions, &instruction) |
| } |
| |
| // Construct the request |
| flowUpdate := openflow_13.FlowTableUpdate{ |
| Id: ofc.DeviceID, |
| FlowMod: &voltha.OfpFlowMod{ |
| Cookie: flowAdd.Cookie, |
| CookieMask: flowAdd.CookieMask, |
| TableId: uint32(flowAdd.TableId), |
| Command: voltha.OfpFlowModCommand_OFPFC_ADD, |
| IdleTimeout: uint32(flowAdd.IdleTimeout), |
| HardTimeout: uint32(flowAdd.HardTimeout), |
| Priority: uint32(flowAdd.Priority), |
| BufferId: flowAdd.BufferId, |
| OutPort: uint32(flowAdd.OutPort), |
| OutGroup: uint32(flowAdd.OutGroup), |
| Flags: uint32(flowAdd.Flags), |
| Match: &voltha.OfpMatch{ |
| Type: voltha.OfpMatchType(flowAdd.Match.GetType()), |
| OxmFields: oxmList, |
| }, |
| |
| Instructions: instructions, |
| }, |
| } |
| if logger.V(log.DebugLevel) { |
| flowUpdateJs, _ := json.Marshal(flowUpdate) |
| logger.Debugf("FlowUpdate being sent to Voltha", |
| log.Fields{ |
| "device-id": ofc.DeviceID, |
| "flow-mod-request": flowUpdateJs}) |
| } |
| if _, err := ofc.VolthaClient.UpdateLogicalDeviceFlowTable(context.Background(), &flowUpdate); err != nil { |
| logger.Errorw("Error calling FlowUpdate ", |
| log.Fields{ |
| "device-id": ofc.DeviceID, |
| "error": err}) |
| } |
| } |
| |
| func (ofc *OFClient) handleFlowMod(flowMod *ofp.FlowMod) { |
| if logger.V(log.DebugLevel) { |
| js, _ := json.Marshal(flowMod) |
| logger.Debugw("handleMod called", |
| log.Fields{ |
| "device-id": ofc.DeviceID, |
| "flow-mod": js}) |
| } |
| logger.Errorw("handleFlowMod not implemented", |
| log.Fields{"device-id": ofc.DeviceID}) |
| } |
| |
| func (ofc *OFClient) handleFlowModStrict(flowModStrict *ofp.FlowModifyStrict) { |
| if logger.V(log.DebugLevel) { |
| js, _ := json.Marshal(flowModStrict) |
| logger.Debugw("handleFlowModStrict called", |
| log.Fields{ |
| "device-id": ofc.DeviceID, |
| "flow-mod-strict": js}) |
| } |
| logger.Error("handleFlowModStrict not implemented", |
| log.Fields{"device-id": ofc.DeviceID}) |
| } |
| |
| func (ofc *OFClient) handleFlowDelete(flowDelete *ofp.FlowDelete) { |
| if logger.V(log.DebugLevel) { |
| js, _ := json.Marshal(flowDelete) |
| logger.Debugw("handleFlowDelete called", |
| log.Fields{ |
| "device-id": ofc.DeviceID, |
| "flow-delete": js}) |
| } |
| logger.Error("handleFlowDelete not implemented", |
| log.Fields{"device-id": ofc.DeviceID}) |
| |
| } |
| |
| func (ofc *OFClient) handleFlowDeleteStrict(flowDeleteStrict *ofp.FlowDeleteStrict) { |
| if logger.V(log.DebugLevel) { |
| js, _ := json.Marshal(flowDeleteStrict) |
| logger.Debugw("handleFlowAdd called", |
| log.Fields{ |
| "device-id": ofc.DeviceID, |
| "flow-delete-strict": js}) |
| } |
| |
| if ofc.VolthaClient == nil { |
| logger.Errorw("no-voltha-connection", |
| log.Fields{"device-id": ofc.DeviceID}) |
| return |
| } |
| |
| // Construct match |
| var oxmList []*voltha.OfpOxmField |
| for _, oxmField := range flowDeleteStrict.Match.GetOxmList() { |
| name := oxmMap[oxmField.GetOXMName()] |
| val := oxmField.GetOXMValue() |
| var ofpOxmField voltha.OfpOxmField |
| ofpOxmField.OxmClass = ofp.OFPXMCOpenflowBasic |
| var field voltha.OfpOxmOfbField |
| field.Type = voltha.OxmOfbFieldTypes(name) |
| |
| var x openflow_13.OfpOxmField_OfbField |
| x.OfbField = &field |
| ofpOxmField.Field = &x |
| |
| switch voltha.OxmOfbFieldTypes(name) { |
| case voltha.OxmOfbFieldTypes_OFPXMT_OFB_IN_PORT: |
| field.Value = &voltha.OfpOxmOfbField_Port{ |
| Port: uint32(val.(ofp.Port)), |
| } |
| case voltha.OxmOfbFieldTypes_OFPXMT_OFB_IN_PHY_PORT: |
| field.Value = &voltha.OfpOxmOfbField_PhysicalPort{ |
| PhysicalPort: val.(uint32), |
| } |
| case voltha.OxmOfbFieldTypes_OFPXMT_OFB_METADATA: |
| field.Value = &voltha.OfpOxmOfbField_TableMetadata{ |
| TableMetadata: val.(uint64), |
| } |
| case voltha.OxmOfbFieldTypes_OFPXMT_OFB_ETH_TYPE: |
| field.Value = &voltha.OfpOxmOfbField_EthType{ |
| EthType: uint32(val.(ofp.EthernetType)), |
| } |
| case voltha.OxmOfbFieldTypes_OFPXMT_OFB_IP_PROTO: |
| field.Value = &voltha.OfpOxmOfbField_IpProto{ |
| IpProto: uint32(val.(ofp.IpPrototype)), |
| } |
| case voltha.OxmOfbFieldTypes_OFPXMT_OFB_UDP_SRC: |
| field.Value = &voltha.OfpOxmOfbField_UdpSrc{ |
| UdpSrc: uint32(val.(uint16)), |
| } |
| case voltha.OxmOfbFieldTypes_OFPXMT_OFB_UDP_DST: |
| field.Value = &voltha.OfpOxmOfbField_UdpDst{ |
| UdpDst: uint32(val.(uint16)), |
| } |
| case voltha.OxmOfbFieldTypes_OFPXMT_OFB_VLAN_VID: |
| field.Value = &voltha.OfpOxmOfbField_VlanVid{ |
| VlanVid: uint32(val.(uint16)), |
| } |
| } |
| oxmList = append(oxmList, &ofpOxmField) |
| } |
| |
| // Construct request |
| flowUpdate := openflow_13.FlowTableUpdate{ |
| Id: ofc.DeviceID, |
| FlowMod: &voltha.OfpFlowMod{ |
| Cookie: flowDeleteStrict.Cookie, |
| CookieMask: flowDeleteStrict.CookieMask, |
| TableId: uint32(flowDeleteStrict.TableId), |
| Command: voltha.OfpFlowModCommand_OFPFC_DELETE_STRICT, |
| IdleTimeout: uint32(flowDeleteStrict.IdleTimeout), |
| HardTimeout: uint32(flowDeleteStrict.HardTimeout), |
| Priority: uint32(flowDeleteStrict.Priority), |
| BufferId: flowDeleteStrict.BufferId, |
| OutPort: uint32(flowDeleteStrict.OutPort), |
| OutGroup: uint32(flowDeleteStrict.OutGroup), |
| Flags: uint32(flowDeleteStrict.Flags), |
| Match: &voltha.OfpMatch{ |
| Type: voltha.OfpMatchType(flowDeleteStrict.Match.GetType()), |
| OxmFields: oxmList, |
| }, |
| }, |
| } |
| |
| if logger.V(log.DebugLevel) { |
| flowUpdateJs, _ := json.Marshal(flowUpdate) |
| logger.Debugf("FlowUpdate being sent to Voltha", |
| log.Fields{ |
| "device-id": ofc.DeviceID, |
| "flow-update": flowUpdateJs}) |
| } |
| if _, err := ofc.VolthaClient.UpdateLogicalDeviceFlowTable(context.Background(), &flowUpdate); err != nil { |
| logger.Errorw("Error calling FlowUpdate ", |
| log.Fields{ |
| "device-id": ofc.DeviceID, |
| "error": err}) |
| } |
| } |