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/*
* Copyright 2018-present Open Networking Foundation
* 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 adaptercore provides the utility for olt devices, flows and statistics
package adaptercore
import (
"context"
"crypto/md5"
"encoding/json"
"errors"
"fmt"
"math/big"
"sync"
"github.com/opencord/voltha-lib-go/v2/pkg/flows"
"github.com/opencord/voltha-lib-go/v2/pkg/log"
tp "github.com/opencord/voltha-lib-go/v2/pkg/techprofile"
rsrcMgr "github.com/opencord/voltha-openolt-adapter/adaptercore/resourcemanager"
"github.com/opencord/voltha-protos/v2/go/common"
ic "github.com/opencord/voltha-protos/v2/go/inter_container"
ofp "github.com/opencord/voltha-protos/v2/go/openflow_13"
openoltpb2 "github.com/opencord/voltha-protos/v2/go/openolt"
tp_pb "github.com/opencord/voltha-protos/v2/go/tech_profile"
"github.com/opencord/voltha-protos/v2/go/voltha"
//deepcopy "github.com/getlantern/deepcopy"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
const (
// Flow categories
//HsiaFlow flow category
HsiaFlow = "HSIA_FLOW"
//EapolFlow flow category
EapolFlow = "EAPOL_FLOW"
//DhcpFlow flow category
DhcpFlow = "DHCP_FLOW"
//IPProtoDhcp flow category
IPProtoDhcp = 17
//IPProtoIgmp flow category
IPProtoIgmp = 2
//EapEthType eapethtype value
EapEthType = 0x888e
//LldpEthType lldp ethtype value
LldpEthType = 0x88cc
//IgmpProto proto value
IgmpProto = 2
//FIXME - see also BRDCM_DEFAULT_VLAN in broadcom_onu.py
//ReservedVlan Transparent Vlan
ReservedVlan = 4095
//DefaultMgmtVlan default vlan value
DefaultMgmtVlan = 4091
// Openolt Flow
//Upstream constant
Upstream = "upstream"
//Downstream constant
Downstream = "downstream"
//PacketTagType constant
PacketTagType = "pkt_tag_type"
//Untagged constant
Untagged = "untagged"
//SingleTag constant
SingleTag = "single_tag"
//DoubleTag constant
DoubleTag = "double_tag"
// classifierInfo
//EthType constant
EthType = "eth_type"
//TPID constant
TPID = "tpid"
//IPProto constant
IPProto = "ip_proto"
//InPort constant
InPort = "in_port"
//VlanVid constant
VlanVid = "vlan_vid"
//VlanPcp constant
VlanPcp = "vlan_pcp"
//UDPDst constant
UDPDst = "udp_dst"
//UDPSrc constant
UDPSrc = "udp_src"
//Ipv4Dst constant
Ipv4Dst = "ipv4_dst"
//Ipv4Src constant
Ipv4Src = "ipv4_src"
//Metadata constant
Metadata = "metadata"
//TunnelID constant
TunnelID = "tunnel_id"
//Output constant
Output = "output"
// Actions
//PopVlan constant
PopVlan = "pop_vlan"
//PushVlan constant
PushVlan = "push_vlan"
//TrapToHost constant
TrapToHost = "trap_to_host"
//MaxMeterBand constant
MaxMeterBand = 2
//VlanPCPMask contant
VlanPCPMask = 0xFF
//VlanvIDMask constant
VlanvIDMask = 0xFFF
//MaxPonPorts constant
MaxPonPorts = 16
//IntfID constant
IntfID = "intfId"
//OnuID constant
OnuID = "onuId"
//UniID constant
UniID = "uniId"
//PortNo constant
PortNo = "portNo"
//AllocID constant
AllocID = "allocId"
)
type gemPortKey struct {
intfID uint32
gemPort uint32
}
type schedQueue struct {
direction tp_pb.Direction
intfID uint32
onuID uint32
uniID uint32
tpID uint32
uniPort uint32
tpInst *tp.TechProfile
meterID uint32
flowMetadata *voltha.FlowMetadata
}
//OpenOltFlowMgr creates the Structure of OpenOltFlowMgr obj
type OpenOltFlowMgr struct {
techprofile []tp.TechProfileIf
deviceHandler *DeviceHandler
resourceMgr *rsrcMgr.OpenOltResourceMgr
onuIdsLock sync.RWMutex
flowsUsedByGemPort map[gemPortKey][]uint32 //gem port id to flow ids
packetInGemPort map[rsrcMgr.PacketInInfoKey]uint32 //packet in gem port local cache
onuGemInfo map[uint32][]rsrcMgr.OnuGemInfo //onu, gem and uni info local cache
lockCache sync.RWMutex
}
//NewFlowManager creates OpenOltFlowMgr object and initializes the parameters
func NewFlowManager(dh *DeviceHandler, rMgr *rsrcMgr.OpenOltResourceMgr) *OpenOltFlowMgr {
log.Info("Initializing flow manager")
var flowMgr OpenOltFlowMgr
var err error
var idx uint32
flowMgr.deviceHandler = dh
flowMgr.resourceMgr = rMgr
flowMgr.techprofile = make([]tp.TechProfileIf, MaxPonPorts)
if err = flowMgr.populateTechProfilePerPonPort(); err != nil {
log.Error("Error while populating tech profile mgr\n")
return nil
}
flowMgr.onuIdsLock = sync.RWMutex{}
flowMgr.flowsUsedByGemPort = make(map[gemPortKey][]uint32)
flowMgr.packetInGemPort = make(map[rsrcMgr.PacketInInfoKey]uint32)
flowMgr.onuGemInfo = make(map[uint32][]rsrcMgr.OnuGemInfo)
ponPorts := rMgr.DevInfo.GetPonPorts()
//Load the onugem info cache from kv store on flowmanager start
for idx = 0; idx < ponPorts; idx++ {
if flowMgr.onuGemInfo[idx], err = rMgr.GetOnuGemInfo(idx); err != nil {
log.Error("Failed to load onu gem info cache")
}
}
flowMgr.lockCache = sync.RWMutex{}
log.Info("Initialization of flow manager success!!")
return &flowMgr
}
func (f *OpenOltFlowMgr) generateStoredFlowID(flowID uint32, direction string) (uint64, error) {
if direction == Upstream {
log.Debug("upstream flow, shifting id")
return 0x1<<15 | uint64(flowID), nil
} else if direction == Downstream {
log.Debug("downstream flow, not shifting id")
return uint64(flowID), nil
} else {
log.Debug("Unrecognized direction")
return 0, fmt.Errorf("unrecognized direction %s", direction)
}
}
func (f *OpenOltFlowMgr) registerFlow(flowFromCore *ofp.OfpFlowStats, deviceFlow *openoltpb2.Flow) {
log.Debug("Registering Flow for Device ", log.Fields{"flow": flowFromCore},
log.Fields{"device": f.deviceHandler.deviceID})
gemPK := gemPortKey{uint32(deviceFlow.AccessIntfId), uint32(deviceFlow.GemportId)}
flowIDList, ok := f.flowsUsedByGemPort[gemPK]
if !ok {
flowIDList = []uint32{deviceFlow.FlowId}
}
flowIDList = appendUnique(flowIDList, deviceFlow.FlowId)
f.flowsUsedByGemPort[gemPK] = flowIDList
}
func (f *OpenOltFlowMgr) divideAndAddFlow(intfID uint32, onuID uint32, uniID uint32, portNo uint32,
classifierInfo map[string]interface{}, actionInfo map[string]interface{}, flow *ofp.OfpFlowStats, TpID uint32,
UsMeterID uint32, DsMeterID uint32, flowMetadata *voltha.FlowMetadata) {
var allocID uint32
var gemPorts []uint32
var TpInst *tp.TechProfile
log.Infow("Dividing flow", log.Fields{"intfId": intfID, "onuId": onuID, "uniId": uniID, "portNo": portNo,
"classifier": classifierInfo, "action": actionInfo, "UsMeterID": UsMeterID, "DsMeterID": DsMeterID, "TpID": TpID})
// only create tcont/gemports if there is actually an onu id. otherwise BAL throws an error. Usually this
// is because the flow is an NNI flow and there would be no onu resources associated with it
// TODO: properly deal with NNI flows
if onuID <= 0 {
log.Errorw("No onu id for flow", log.Fields{"portNo": portNo, "classifer": classifierInfo, "action": actionInfo})
return
}
uni := getUniPortPath(intfID, int32(onuID), int32(uniID))
log.Debugw("Uni port name", log.Fields{"uni": uni})
allocID, gemPorts, TpInst = f.createTcontGemports(intfID, onuID, uniID, uni, portNo, TpID, UsMeterID, DsMeterID, flowMetadata)
if allocID == 0 || gemPorts == nil || TpInst == nil {
log.Error("alloc-id-gem-ports-tp-unavailable")
return
}
/* Flows can be added specific to gemport if p-bits are received.
* If no pbit mentioned then adding flows for all gemports
*/
args := make(map[string]uint32)
args[IntfID] = intfID
args[OnuID] = onuID
args[UniID] = uniID
args[PortNo] = portNo
args[AllocID] = allocID
f.checkAndAddFlow(args, classifierInfo, actionInfo, flow, TpInst, gemPorts, TpID, uni)
}
// CreateSchedulerQueues creates traffic schedulers on the device with the given scheduler configuration and traffic shaping info
func (f *OpenOltFlowMgr) CreateSchedulerQueues(sq schedQueue) error {
log.Debugw("CreateSchedulerQueues", log.Fields{"Dir": sq.direction, "IntfID": sq.intfID,
"OnuID": sq.onuID, "UniID": sq.uniID, "TpID": sq.tpID, "MeterID": sq.meterID,
"TpInst": sq.tpInst, "flowMetadata": sq.flowMetadata})
Direction, err := verifyMeterIDAndGetDirection(sq.meterID, sq.direction)
if err != nil {
return err
}
/* Lets make a simple assumption that if the meter-id is present on the KV store,
* then the scheduler and queues configuration is applied on the OLT device
* in the given direction.
*/
var SchedCfg *tp_pb.SchedulerConfig
KvStoreMeter, err := f.resourceMgr.GetMeterIDForOnu(Direction, sq.intfID, sq.onuID, sq.uniID, sq.tpID)
if err != nil {
log.Error("Failed to get meter for intf %d, onuid %d, uniid %d", sq.intfID, sq.onuID, sq.uniID)
return err
}
if KvStoreMeter != nil {
if KvStoreMeter.MeterId == sq.meterID {
log.Debug("Scheduler already created for upstream")
return nil
}
log.Errorw("Dynamic meter update not supported", log.Fields{"KvStoreMeterId": KvStoreMeter.MeterId, "MeterID-in-flow": sq.meterID})
return errors.New("invalid-meter-id-in-flow")
}
log.Debugw("Meter-does-not-exist-Creating-new", log.Fields{"MeterID": sq.meterID, "Direction": Direction})
if sq.direction == tp_pb.Direction_UPSTREAM {
SchedCfg = f.techprofile[sq.intfID].GetUsScheduler(sq.tpInst)
} else if sq.direction == tp_pb.Direction_DOWNSTREAM {
SchedCfg = f.techprofile[sq.intfID].GetDsScheduler(sq.tpInst)
}
var meterConfig *ofp.OfpMeterConfig
if sq.flowMetadata != nil {
for _, meter := range sq.flowMetadata.Meters {
if sq.meterID == meter.MeterId {
meterConfig = meter
log.Debugw("Found-meter-config-from-flowmetadata", log.Fields{"meterConfig": meterConfig})
break
}
}
} else {
log.Error("Flow-metadata-is-not-present-in-flow")
}
if meterConfig == nil {
log.Errorw("Could-not-get-meterbands-from-flowMetadata", log.Fields{"flowMetadata": sq.flowMetadata,
"MeterID": sq.meterID})
return errors.New("failed-to-get-meter-from-flowMetadata")
} else if len(meterConfig.Bands) < MaxMeterBand {
log.Errorw("Invalid-number-of-bands-in-meter", log.Fields{"Bands": meterConfig.Bands, "MeterID": sq.meterID})
return errors.New("invalid-number-of-bands-in-meter")
}
cir := meterConfig.Bands[0].Rate
cbs := meterConfig.Bands[0].BurstSize
eir := meterConfig.Bands[1].Rate
ebs := meterConfig.Bands[1].BurstSize
pir := cir + eir
pbs := cbs + ebs
TrafficShaping := &tp_pb.TrafficShapingInfo{Cir: cir, Cbs: cbs, Pir: pir, Pbs: pbs}
TrafficSched := []*tp_pb.TrafficScheduler{f.techprofile[sq.intfID].GetTrafficScheduler(sq.tpInst, SchedCfg, TrafficShaping)}
log.Debugw("Sending Traffic scheduler create to device", log.Fields{"Direction": Direction, "TrafficScheds": TrafficSched})
if _, err := f.deviceHandler.Client.CreateTrafficSchedulers(context.Background(), &tp_pb.TrafficSchedulers{
IntfId: sq.intfID, OnuId: sq.onuID,
UniId: sq.uniID, PortNo: sq.uniPort,
TrafficScheds: TrafficSched}); err != nil {
log.Errorw("Failed to create traffic schedulers", log.Fields{"error": err})
return err
}
// On receiving the CreateTrafficQueues request, the driver should create corresponding
// downstream queues.
trafficQueues := f.techprofile[sq.intfID].GetTrafficQueues(sq.tpInst, sq.direction)
log.Debugw("Sending Traffic Queues create to device", log.Fields{"Direction": Direction, "TrafficQueues": trafficQueues})
if _, err := f.deviceHandler.Client.CreateTrafficQueues(context.Background(),
&tp_pb.TrafficQueues{IntfId: sq.intfID, OnuId: sq.onuID,
UniId: sq.uniID, PortNo: sq.uniPort,
TrafficQueues: trafficQueues}); err != nil {
log.Errorw("Failed to create traffic queues in device", log.Fields{"error": err})
return err
}
/* After we successfully applied the scheduler configuration on the OLT device,
* store the meter id on the KV store, for further reference.
*/
if err := f.resourceMgr.UpdateMeterIDForOnu(Direction, sq.intfID, sq.onuID, sq.uniID, sq.tpID, meterConfig); err != nil {
log.Error("Failed to update meter id for onu %d, meterid %d", sq.onuID, sq.meterID)
return err
}
log.Debugw("updated-meter-info into KV store successfully", log.Fields{"Direction": Direction,
"Meter": meterConfig})
return nil
}
// RemoveSchedulerQueues removes the traffic schedulers from the device based on the given scheduler configuration and traffic shaping info
func (f *OpenOltFlowMgr) RemoveSchedulerQueues(sq schedQueue) error {
var Direction string
var SchedCfg *tp_pb.SchedulerConfig
var err error
log.Debugw("Removing schedulers and Queues in OLT", log.Fields{"Direction": sq.direction, "IntfID": sq.intfID,
"OnuID": sq.onuID, "UniID": sq.uniID, "UniPort": sq.uniPort})
if sq.direction == tp_pb.Direction_UPSTREAM {
SchedCfg = f.techprofile[sq.intfID].GetUsScheduler(sq.tpInst)
Direction = "upstream"
} else if sq.direction == tp_pb.Direction_DOWNSTREAM {
SchedCfg = f.techprofile[sq.intfID].GetDsScheduler(sq.tpInst)
Direction = "downstream"
}
KVStoreMeter, err := f.resourceMgr.GetMeterIDForOnu(Direction, sq.intfID, sq.onuID, sq.uniID, sq.tpID)
if err != nil {
log.Errorf("Failed to get Meter for Onu %d", sq.onuID)
return err
}
if KVStoreMeter == nil {
log.Debugw("No-meter-has-been-installed-yet", log.Fields{"direction": Direction, "IntfID": sq.intfID, "OnuID": sq.onuID, "UniID": sq.uniID})
return nil
}
cir := KVStoreMeter.Bands[0].Rate
cbs := KVStoreMeter.Bands[0].BurstSize
eir := KVStoreMeter.Bands[1].Rate
ebs := KVStoreMeter.Bands[1].BurstSize
pir := cir + eir
pbs := cbs + ebs
TrafficShaping := &tp_pb.TrafficShapingInfo{Cir: cir, Cbs: cbs, Pir: pir, Pbs: pbs}
TrafficSched := []*tp_pb.TrafficScheduler{f.techprofile[sq.intfID].GetTrafficScheduler(sq.tpInst, SchedCfg, TrafficShaping)}
TrafficQueues := f.techprofile[sq.intfID].GetTrafficQueues(sq.tpInst, sq.direction)
if _, err = f.deviceHandler.Client.RemoveTrafficQueues(context.Background(),
&tp_pb.TrafficQueues{IntfId: sq.intfID, OnuId: sq.onuID,
UniId: sq.uniID, PortNo: sq.uniPort,
TrafficQueues: TrafficQueues}); err != nil {
log.Errorw("Failed to remove traffic queues", log.Fields{"error": err})
return err
}
log.Debug("Removed traffic queues successfully")
if _, err = f.deviceHandler.Client.RemoveTrafficSchedulers(context.Background(), &tp_pb.TrafficSchedulers{
IntfId: sq.intfID, OnuId: sq.onuID,
UniId: sq.uniID, PortNo: sq.uniPort,
TrafficScheds: TrafficSched}); err != nil {
log.Errorw("failed to remove traffic schedulers", log.Fields{"error": err})
return err
}
log.Debug("Removed traffic schedulers successfully")
/* After we successfully remove the scheduler configuration on the OLT device,
* delete the meter id on the KV store.
*/
err = f.resourceMgr.RemoveMeterIDForOnu(Direction, sq.intfID, sq.onuID, sq.uniID, sq.tpID)
if err != nil {
log.Errorf("Failed to remove meter for onu %d, meter id %d", sq.onuID, KVStoreMeter.MeterId)
return err
}
log.Debugw("Removed-meter-from-KV-store successfully", log.Fields{"MeterId": KVStoreMeter.MeterId, "dir": Direction})
return err
}
// This function allocates tconts and GEM ports for an ONU
func (f *OpenOltFlowMgr) createTcontGemports(intfID uint32, onuID uint32, uniID uint32, uni string, uniPort uint32, TpID uint32, UsMeterID uint32, DsMeterID uint32, flowMetadata *voltha.FlowMetadata) (uint32, []uint32, *tp.TechProfile) {
var allocIDs []uint32
var allgemPortIDs []uint32
var gemPortIDs []uint32
allocIDs = f.resourceMgr.GetCurrentAllocIDsForOnu(intfID, onuID, uniID)
allgemPortIDs = f.resourceMgr.GetCurrentGEMPortIDsForOnu(intfID, onuID, uniID)
tpPath := f.getTPpath(intfID, uni, TpID)
// Check tech profile instance already exists for derived port name
techProfileInstance, err := f.techprofile[intfID].GetTPInstanceFromKVStore(TpID, tpPath)
if err != nil { // This should not happen, something wrong in KV backend transaction
log.Errorw("Error in fetching tech profile instance from KV store", log.Fields{"tpID": TpID, "path": tpPath})
return 0, nil, nil
}
log.Debug("Creating New TConts and Gem ports", log.Fields{"pon": intfID, "onu": onuID, "uni": uniID})
if techProfileInstance == nil {
log.Info("Creating tech profile instance", log.Fields{"path": tpPath})
techProfileInstance = f.techprofile[intfID].CreateTechProfInstance(TpID, uni, intfID)
if techProfileInstance == nil {
log.Error("Tech-profile-instance-creation-failed")
return 0, nil, nil
}
f.resourceMgr.UpdateTechProfileIDForOnu(intfID, onuID, uniID, TpID)
} else {
log.Debugw("Tech-profile-instance-already-exist-for-given port-name", log.Fields{"uni": uni})
}
if UsMeterID != 0 {
sq := schedQueue{direction: tp_pb.Direction_UPSTREAM, intfID: intfID, onuID: onuID, uniID: uniID, tpID: TpID,
uniPort: uniPort, tpInst: techProfileInstance, meterID: UsMeterID, flowMetadata: flowMetadata}
if err := f.CreateSchedulerQueues(sq); err != nil {
log.Errorw("CreateSchedulerQueues Failed-upstream", log.Fields{"error": err, "meterID": UsMeterID})
return 0, nil, nil
}
}
if DsMeterID != 0 {
sq := schedQueue{direction: tp_pb.Direction_DOWNSTREAM, intfID: intfID, onuID: onuID, uniID: uniID, tpID: TpID,
uniPort: uniPort, tpInst: techProfileInstance, meterID: DsMeterID, flowMetadata: flowMetadata}
if err := f.CreateSchedulerQueues(sq); err != nil {
log.Errorw("CreateSchedulerQueues Failed-downstream", log.Fields{"error": err, "meterID": DsMeterID})
return 0, nil, nil
}
}
allocID := techProfileInstance.UsScheduler.AllocID
allocIDs = appendUnique(allocIDs, allocID)
for _, gem := range techProfileInstance.UpstreamGemPortAttributeList {
allgemPortIDs = appendUnique(allgemPortIDs, gem.GemportID)
gemPortIDs = append(gemPortIDs, gem.GemportID)
}
log.Debugw("Allocated Tcont and GEM ports", log.Fields{"allocIDs": allocIDs, "gemports": allgemPortIDs})
// Send Tconts and GEM ports to KV store
f.storeTcontsGEMPortsIntoKVStore(intfID, onuID, uniID, allocIDs, allgemPortIDs)
return allocID, gemPortIDs, techProfileInstance
}
func (f *OpenOltFlowMgr) storeTcontsGEMPortsIntoKVStore(intfID uint32, onuID uint32, uniID uint32, allocID []uint32, gemPortIDs []uint32) {
log.Debugw("Storing allocated Tconts and GEM ports into KV store",
log.Fields{"intfId": intfID, "onuId": onuID, "uniId": uniID, "allocID": allocID, "gemPortIDs": gemPortIDs})
/* Update the allocated alloc_id and gem_port_id for the ONU/UNI to KV store */
if err := f.resourceMgr.UpdateAllocIdsForOnu(intfID, onuID, uniID, allocID); err != nil {
log.Error("Errow while uploading allocID to KV store")
}
if err := f.resourceMgr.UpdateGEMPortIDsForOnu(intfID, onuID, uniID, gemPortIDs); err != nil {
log.Error("Errow while uploading GEMports to KV store")
}
if err := f.resourceMgr.UpdateGEMportsPonportToOnuMapOnKVStore(gemPortIDs, intfID, onuID, uniID); err != nil {
log.Error("Errow while uploading gemtopon map to KV store")
}
log.Debug("Stored tconts and GEM into KV store successfully")
for _, gemPort := range gemPortIDs {
f.addGemPortToOnuInfoMap(intfID, onuID, gemPort)
}
}
func (f *OpenOltFlowMgr) populateTechProfilePerPonPort() error {
var tpCount int
for _, techRange := range f.resourceMgr.DevInfo.Ranges {
for _, intfID := range techRange.IntfIds {
f.techprofile[intfID] = f.resourceMgr.ResourceMgrs[uint32(intfID)].TechProfileMgr
tpCount++
log.Debugw("Init tech profile done", log.Fields{"intfID": intfID})
}
}
//Make sure we have as many tech_profiles as there are pon ports on the device
if tpCount != int(f.resourceMgr.DevInfo.GetPonPorts()) {
log.Errorw("Error while populating techprofile",
log.Fields{"numofTech": tpCount, "numPonPorts": f.resourceMgr.DevInfo.GetPonPorts()})
return errors.New("error while populating techprofile mgrs")
}
log.Infow("Populated techprofile for ponports successfully",
log.Fields{"numofTech": tpCount, "numPonPorts": f.resourceMgr.DevInfo.GetPonPorts()})
return nil
}
func (f *OpenOltFlowMgr) addUpstreamDataFlow(intfID uint32, onuID uint32, uniID uint32,
portNo uint32, uplinkClassifier map[string]interface{},
uplinkAction map[string]interface{}, logicalFlow *ofp.OfpFlowStats,
allocID uint32, gemportID uint32) {
uplinkClassifier[PacketTagType] = SingleTag
log.Debugw("Adding upstream data flow", log.Fields{"uplinkClassifier": uplinkClassifier, "uplinkAction": uplinkAction})
f.addHSIAFlow(intfID, onuID, uniID, portNo, uplinkClassifier, uplinkAction,
Upstream, logicalFlow, allocID, gemportID)
/* TODO: Install Secondary EAP on the subscriber vlan */
}
func (f *OpenOltFlowMgr) addDownstreamDataFlow(intfID uint32, onuID uint32, uniID uint32,
portNo uint32, downlinkClassifier map[string]interface{},
downlinkAction map[string]interface{}, logicalFlow *ofp.OfpFlowStats,
allocID uint32, gemportID uint32) {
downlinkClassifier[PacketTagType] = DoubleTag
log.Debugw("Adding downstream data flow", log.Fields{"downlinkClassifier": downlinkClassifier,
"downlinkAction": downlinkAction})
// Ignore Downlink trap flow given by core, cannot do anything with this flow */
if vlan, exists := downlinkClassifier[VlanVid]; exists {
if vlan.(uint32) == (uint32(ofp.OfpVlanId_OFPVID_PRESENT) | 4000) { //private VLAN given by core
if metadata, exists := downlinkClassifier[Metadata]; exists { // inport is filled in metadata by core
if uint32(metadata.(uint64)) == MkUniPortNum(intfID, onuID, uniID) {
log.Infow("Ignoring DL trap device flow from core", log.Fields{"flow": logicalFlow})
return
}
}
}
}
/* Already this info available classifier? */
downlinkAction[PopVlan] = true
// vlan_vid is a uint32. must be type asserted as such or conversion fails
dlClVid, ok := downlinkClassifier[VlanVid].(uint32)
if ok {
downlinkAction[VlanVid] = dlClVid & 0xfff
} else {
log.Error("dl-classifier-vid-type-conversion-failed")
return
}
f.addHSIAFlow(intfID, onuID, uniID, portNo, downlinkClassifier, downlinkAction,
Downstream, logicalFlow, allocID, gemportID)
}
func (f *OpenOltFlowMgr) addHSIAFlow(intfID uint32, onuID uint32, uniID uint32, portNo uint32, classifier map[string]interface{},
action map[string]interface{}, direction string, logicalFlow *ofp.OfpFlowStats,
allocID uint32, gemPortID uint32) {
var networkIntfID uint32
/* One of the OLT platform (Broadcom BAL) requires that symmetric
flows require the same flow_id to be used across UL and DL.
Since HSIA flow is the only symmetric flow currently, we need to
re-use the flow_id across both direction. The 'flow_category'
takes priority over flow_cookie to find any available HSIA_FLOW
id for the ONU.
*/
log.Debugw("Adding HSIA flow", log.Fields{"intfId": intfID, "onuId": onuID, "uniId": uniID, "classifier": classifier,
"action": action, "direction": direction, "allocId": allocID, "gemPortId": gemPortID,
"logicalFlow": *logicalFlow})
var vlanPbit uint32
if _, ok := classifier[VlanPcp]; ok {
vlanPbit = classifier[VlanPcp].(uint32)
log.Debugw("Found pbit in the flow", log.Fields{"VlanPbit": vlanPbit})
}
flowStoreCookie := getFlowStoreCookie(classifier, gemPortID)
flowID, err := f.resourceMgr.GetFlowID(intfID, int32(onuID), int32(uniID), gemPortID, flowStoreCookie, HsiaFlow, vlanPbit)
if err != nil {
log.Errorw("Flow id unavailable for HSIA flow", log.Fields{"direction": direction})
return
}
var classifierProto *openoltpb2.Classifier
var actionProto *openoltpb2.Action
if classifierProto = makeOpenOltClassifierField(classifier); classifierProto == nil {
log.Error("Error in making classifier protobuf for hsia flow")
return
}
log.Debugw("Created classifier proto", log.Fields{"classifier": *classifierProto})
if actionProto = makeOpenOltActionField(action); actionProto == nil {
log.Errorw("Error in making action protobuf for hsia flow", log.Fields{"direction": direction})
return
}
log.Debugw("Created action proto", log.Fields{"action": *actionProto})
networkIntfID, err = getNniIntfID(classifier, action)
if err != nil {
log.Error("Failed to get nniIntf ID")
return
}
flow := openoltpb2.Flow{AccessIntfId: int32(intfID),
OnuId: int32(onuID),
UniId: int32(uniID),
FlowId: flowID,
FlowType: direction,
AllocId: int32(allocID),
NetworkIntfId: int32(networkIntfID),
GemportId: int32(gemPortID),
Classifier: classifierProto,
Action: actionProto,
Priority: int32(logicalFlow.Priority),
Cookie: logicalFlow.Cookie,
PortNo: portNo}
if ok := f.addFlowToDevice(logicalFlow, &flow); ok {
log.Debug("HSIA flow added to device successfully", log.Fields{"direction": direction})
flowsToKVStore := f.getUpdatedFlowInfo(&flow, flowStoreCookie, HsiaFlow, flowID, logicalFlow.Id)
if err := f.updateFlowInfoToKVStore(flow.AccessIntfId,
flow.OnuId,
flow.UniId,
flow.FlowId /*flowCategory,*/, flowsToKVStore); err != nil {
log.Errorw("Error uploading HSIA flow into KV store", log.Fields{"flow": flow, "direction": direction, "error": err})
return
}
}
}
func (f *OpenOltFlowMgr) addDHCPTrapFlow(intfID uint32, onuID uint32, uniID uint32, portNo uint32, classifier map[string]interface{}, action map[string]interface{}, logicalFlow *ofp.OfpFlowStats, allocID uint32, gemPortID uint32) {
var dhcpFlow openoltpb2.Flow
var actionProto *openoltpb2.Action
var classifierProto *openoltpb2.Classifier
var flowID uint32
networkIntfID, err := getNniIntfID(classifier, action)
if err != nil {
log.Error("Failed to get nniIntf ID")
return
}
// Clear the action map
for k := range action {
delete(action, k)
}
action[TrapToHost] = true
classifier[UDPSrc] = uint32(68)
classifier[UDPDst] = uint32(67)
classifier[PacketTagType] = SingleTag
delete(classifier, VlanVid)
flowStoreCookie := getFlowStoreCookie(classifier, gemPortID)
flowID, err = f.resourceMgr.GetFlowID(intfID, int32(onuID), int32(uniID), gemPortID, flowStoreCookie, "", 0 /*classifier[VLAN_PCP].(uint32)*/)
if err != nil {
log.Errorw("flowId unavailable for UL EAPOL", log.Fields{"intfId": intfID, "onuId": onuID, "flowStoreCookie": flowStoreCookie})
return
}
log.Debugw("Creating UL DHCP flow", log.Fields{"ul_classifier": classifier, "ul_action": action, "uplinkFlowId": flowID})
if classifierProto = makeOpenOltClassifierField(classifier); classifierProto == nil {
log.Error("Error in making classifier protobuf for ul flow")
return
}
log.Debugw("Created classifier proto", log.Fields{"classifier": *classifierProto})
if actionProto = makeOpenOltActionField(action); actionProto == nil {
log.Error("Error in making action protobuf for ul flow")
return
}
dhcpFlow = openoltpb2.Flow{AccessIntfId: int32(intfID),
OnuId: int32(onuID),
UniId: int32(uniID),
FlowId: flowID,
FlowType: Upstream,
AllocId: int32(allocID),
NetworkIntfId: int32(networkIntfID),
GemportId: int32(gemPortID),
Classifier: classifierProto,
Action: actionProto,
Priority: int32(logicalFlow.Priority),
Cookie: logicalFlow.Cookie,
PortNo: portNo}
if ok := f.addFlowToDevice(logicalFlow, &dhcpFlow); ok {
log.Debug("DHCP UL flow added to device successfully")
flowsToKVStore := f.getUpdatedFlowInfo(&dhcpFlow, flowStoreCookie, "DHCP", flowID, logicalFlow.Id)
if err := f.updateFlowInfoToKVStore(dhcpFlow.AccessIntfId,
dhcpFlow.OnuId,
dhcpFlow.UniId,
dhcpFlow.FlowId, flowsToKVStore); err != nil {
log.Errorw("Error uploading DHCP UL flow into KV store", log.Fields{"flow": dhcpFlow, "error": err})
return
}
}
return
}
// Add EAPOL flow to device with mac, vlanId as classifier for upstream and downstream
func (f *OpenOltFlowMgr) addEAPOLFlow(intfID uint32, onuID uint32, uniID uint32, portNo uint32, logicalFlow *ofp.OfpFlowStats, allocID uint32, gemPortID uint32, vlanID uint32, classifier map[string]interface{}, action map[string]interface{}) {
log.Debugw("Adding EAPOL to device", log.Fields{"intfId": intfID, "onuId": onuID, "portNo": portNo, "allocId": allocID, "gemPortId": gemPortID, "vlanId": vlanID, "flow": logicalFlow})
uplinkClassifier := make(map[string]interface{})
uplinkAction := make(map[string]interface{})
downlinkClassifier := make(map[string]interface{})
downlinkAction := make(map[string]interface{})
var upstreamFlow openoltpb2.Flow
var downstreamFlow openoltpb2.Flow
var networkIntfID uint32
// Fill Classfier
uplinkClassifier[EthType] = uint32(EapEthType)
uplinkClassifier[PacketTagType] = SingleTag
uplinkClassifier[VlanVid] = vlanID
// Fill action
uplinkAction[TrapToHost] = true
flowStoreCookie := getFlowStoreCookie(uplinkClassifier, gemPortID)
//Add Uplink EAPOL Flow
uplinkFlowID, err := f.resourceMgr.GetFlowID(intfID, int32(onuID), int32(uniID), gemPortID, flowStoreCookie, "", 0)
if err != nil {
log.Errorw("flowId unavailable for UL EAPOL", log.Fields{"intfId": intfID, "onuId": onuID, "flowStoreCookie": flowStoreCookie})
return
}
var classifierProto *openoltpb2.Classifier
var actionProto *openoltpb2.Action
log.Debugw("Creating UL EAPOL flow", log.Fields{"ul_classifier": uplinkClassifier, "ul_action": uplinkAction, "uplinkFlowId": uplinkFlowID})
if classifierProto = makeOpenOltClassifierField(uplinkClassifier); classifierProto == nil {
log.Error("Error in making classifier protobuf for ul flow")
return
}
log.Debugw("Created classifier proto", log.Fields{"classifier": *classifierProto})
if actionProto = makeOpenOltActionField(uplinkAction); actionProto == nil {
log.Error("Error in making action protobuf for ul flow")
return
}
log.Debugw("Created action proto", log.Fields{"action": *actionProto})
networkIntfID, err = getNniIntfID(classifier, action)
if err != nil {
log.Error("Failed to get nniIntf ID")
return
}
upstreamFlow = openoltpb2.Flow{AccessIntfId: int32(intfID),
OnuId: int32(onuID),
UniId: int32(uniID),
FlowId: uplinkFlowID,
FlowType: Upstream,
AllocId: int32(allocID),
NetworkIntfId: int32(networkIntfID),
GemportId: int32(gemPortID),
Classifier: classifierProto,
Action: actionProto,
Priority: int32(logicalFlow.Priority),
Cookie: logicalFlow.Cookie,
PortNo: portNo}
if ok := f.addFlowToDevice(logicalFlow, &upstreamFlow); ok {
log.Debug("EAPOL UL flow added to device successfully")
flowCategory := "EAPOL"
flowsToKVStore := f.getUpdatedFlowInfo(&upstreamFlow, flowStoreCookie, flowCategory, uplinkFlowID, logicalFlow.Id)
if err := f.updateFlowInfoToKVStore(upstreamFlow.AccessIntfId,
upstreamFlow.OnuId,
upstreamFlow.UniId,
upstreamFlow.FlowId,
/* lowCategory, */
flowsToKVStore); err != nil {
log.Errorw("Error uploading EAPOL UL flow into KV store", log.Fields{"flow": upstreamFlow, "error": err})
return
}
}
// Dummy Downstream flow due to BAL 2.6 limitation
{
/* Add Downstream EAPOL Flow, Only for first EAP flow (BAL
# requirement)
# On one of the platforms (Broadcom BAL), when same DL classifier
# vlan was used across multiple ONUs, eapol flow re-adds after
# flow delete (cases of onu reboot/disable) fails.
# In order to generate unique vlan, a combination of intf_id
# onu_id and uniId is used.
# uniId defaults to 0, so add 1 to it.
*/
log.Debugw("Creating DL EAPOL flow with default vlan", log.Fields{"vlan": vlanID})
specialVlanDlFlow := 4090 - intfID*onuID*(uniID+1)
// Assert that we do not generate invalid vlans under no condition
if specialVlanDlFlow <= 2 {
log.Fatalw("invalid-vlan-generated", log.Fields{"vlan": specialVlanDlFlow})
return
}
log.Debugw("specialVlanEAPOLDlFlow:", log.Fields{"dl_vlan": specialVlanDlFlow})
// Fill Classfier
downlinkClassifier[PacketTagType] = SingleTag
downlinkClassifier[EthType] = uint32(EapEthType)
downlinkClassifier[VlanVid] = uint32(specialVlanDlFlow)
// Fill action
downlinkAction[PushVlan] = true
downlinkAction[VlanVid] = vlanID
flowStoreCookie := getFlowStoreCookie(downlinkClassifier, gemPortID)
downlinkFlowID, err := f.resourceMgr.GetFlowID(intfID, int32(onuID), int32(uniID), gemPortID, flowStoreCookie, "", 0)
if err != nil {
log.Errorw("flowId unavailable for DL EAPOL",
log.Fields{"intfId": intfID, "onuId": onuID, "flowStoreCookie": flowStoreCookie})
return
}
log.Debugw("Creating DL EAPOL flow",
log.Fields{"dl_classifier": downlinkClassifier, "dl_action": downlinkAction, "downlinkFlowID": downlinkFlowID})
if classifierProto = makeOpenOltClassifierField(downlinkClassifier); classifierProto == nil {
log.Error("Error in making classifier protobuf for downlink flow")
return
}
if actionProto = makeOpenOltActionField(downlinkAction); actionProto == nil {
log.Error("Error in making action protobuf for dl flow")
return
}
// Downstream flow in grpc protobuf
downstreamFlow = openoltpb2.Flow{AccessIntfId: int32(intfID),
OnuId: int32(onuID),
UniId: int32(uniID),
FlowId: downlinkFlowID,
FlowType: Downstream,
AllocId: int32(allocID),
NetworkIntfId: int32(networkIntfID),
GemportId: int32(gemPortID),
Classifier: classifierProto,
Action: actionProto,
Priority: int32(logicalFlow.Priority),
Cookie: logicalFlow.Cookie,
PortNo: portNo}
if ok := f.addFlowToDevice(logicalFlow, &downstreamFlow); ok {
log.Debug("EAPOL DL flow added to device successfully")
flowCategory := ""
flowsToKVStore := f.getUpdatedFlowInfo(&downstreamFlow, flowStoreCookie, flowCategory, downlinkFlowID, logicalFlow.Id)
if err := f.updateFlowInfoToKVStore(downstreamFlow.AccessIntfId,
downstreamFlow.OnuId,
downstreamFlow.UniId,
downstreamFlow.FlowId,
/* flowCategory, */
flowsToKVStore); err != nil {
log.Errorw("Error uploading EAPOL DL flow into KV store", log.Fields{"flow": upstreamFlow, "error": err})
return
}
}
}
log.Debugw("Added EAPOL flows to device successfully", log.Fields{"flow": logicalFlow})
}
func makeOpenOltClassifierField(classifierInfo map[string]interface{}) *openoltpb2.Classifier {
var classifier openoltpb2.Classifier
classifier.EthType, _ = classifierInfo[EthType].(uint32)
classifier.IpProto, _ = classifierInfo[IPProto].(uint32)
if vlanID, ok := classifierInfo[VlanVid].(uint32); ok {
vid := vlanID & VlanvIDMask
if vid != ReservedVlan {
classifier.OVid = vid
}
}
if metadata, ok := classifierInfo[Metadata].(uint64); ok {
vid := uint32(metadata)
if vid != ReservedVlan {
classifier.IVid = vid
}
}
if vlanPcp, ok := classifierInfo[VlanPcp].(uint32); ok {
if vlanPcp == 0 {
classifier.OPbits = VlanPCPMask
} else {
classifier.OPbits = vlanPcp & VlanPCPMask
}
}
classifier.SrcPort, _ = classifierInfo[UDPSrc].(uint32)
classifier.DstPort, _ = classifierInfo[UDPDst].(uint32)
classifier.DstIp, _ = classifierInfo[Ipv4Dst].(uint32)
classifier.SrcIp, _ = classifierInfo[Ipv4Src].(uint32)
if pktTagType, ok := classifierInfo[PacketTagType].(string); ok {
classifier.PktTagType = pktTagType
switch pktTagType {
case SingleTag:
case DoubleTag:
case Untagged:
default:
log.Error("Invalid tag type in classifier") // should not hit
return nil
}
}
return &classifier
}
func makeOpenOltActionField(actionInfo map[string]interface{}) *openoltpb2.Action {
var actionCmd openoltpb2.ActionCmd
var action openoltpb2.Action
action.Cmd = &actionCmd
if _, ok := actionInfo[PopVlan]; ok {
action.OVid = actionInfo[VlanVid].(uint32)
action.Cmd.RemoveOuterTag = true
} else if _, ok := actionInfo[PushVlan]; ok {
action.OVid = actionInfo[VlanVid].(uint32)
action.Cmd.AddOuterTag = true
} else if _, ok := actionInfo[TrapToHost]; ok {
action.Cmd.TrapToHost = actionInfo[TrapToHost].(bool)
} else {
log.Errorw("Invalid-action-field", log.Fields{"action": actionInfo})
return nil
}
return &action
}
func (f *OpenOltFlowMgr) getTPpath(intfID uint32, uni string, TpID uint32) string {
return f.techprofile[intfID].GetTechProfileInstanceKVPath(TpID, uni)
}
// DeleteTechProfileInstances removes the tech profile instances from persistent storage
func (f *OpenOltFlowMgr) DeleteTechProfileInstances(intfID uint32, onuID uint32, uniID uint32, sn string) error {
tpIDList := f.resourceMgr.GetTechProfileIDForOnu(intfID, onuID, uniID)
uniPortName := fmt.Sprintf("pon-{%d}/onu-{%d}/uni-{%d}", intfID, onuID, uniID)
for _, tpID := range tpIDList {
if err := f.DeleteTechProfileInstance(intfID, onuID, uniID, uniPortName, tpID); err != nil {
log.Debugw("Failed-to-delete-tp-instance-from-kv-store", log.Fields{"tp-id": tpID, "uni-port-name": uniPortName})
return err
}
}
return nil
}
// DeleteTechProfileInstance removes the tech profile instance from persistent storage
func (f *OpenOltFlowMgr) DeleteTechProfileInstance(intfID uint32, onuID uint32, uniID uint32, uniPortName string, tpID uint32) error {
if uniPortName == "" {
uniPortName = fmt.Sprintf("pon-{%d}/onu-{%d}/uni-{%d}", intfID, onuID, uniID)
}
if err := f.techprofile[intfID].DeleteTechProfileInstance(tpID, uniPortName); err != nil {
log.Debugw("Failed-to-delete-tp-instance-from-kv-store", log.Fields{"tp-id": tpID, "uni-port-name": uniPortName})
return err
}
return nil
}
func getFlowStoreCookie(classifier map[string]interface{}, gemPortID uint32) uint64 {
if len(classifier) == 0 { // should never happen
log.Error("Invalid classfier object")
return 0
}
var jsonData []byte
var flowString string
var err error
// TODO: Do we need to marshall ??
if jsonData, err = json.Marshal(classifier); err != nil {
log.Error("Failed to encode classifier")
return 0
}
flowString = string(jsonData)
if gemPortID != 0 {
flowString = fmt.Sprintf("%s%s", string(jsonData), string(gemPortID))
}
h := md5.New()
_, _ = h.Write([]byte(flowString))
hash := big.NewInt(0)
hash.SetBytes(h.Sum(nil))
return hash.Uint64()
}
func (f *OpenOltFlowMgr) getUpdatedFlowInfo(flow *openoltpb2.Flow, flowStoreCookie uint64, flowCategory string, deviceFlowID uint32, logicalFlowID uint64) *[]rsrcMgr.FlowInfo {
var flows = []rsrcMgr.FlowInfo{{Flow: flow, FlowCategory: flowCategory, FlowStoreCookie: flowStoreCookie, LogicalFlowID: logicalFlowID}}
var intfID uint32
/* For flows which trap out of the NNI, the AccessIntfId is invalid
(set to -1). In such cases, we need to refer to the NetworkIntfId .
*/
if flow.AccessIntfId != -1 {
intfID = uint32(flow.AccessIntfId)
} else {
intfID = uint32(flow.NetworkIntfId)
}
// Get existing flows matching flowid for given subscriber from KV store
existingFlows := f.resourceMgr.GetFlowIDInfo(intfID, flow.OnuId, flow.UniId, flow.FlowId)
if existingFlows != nil {
log.Debugw("Flow exists for given flowID, appending it to current flow", log.Fields{"flowID": flow.FlowId})
//for _, f := range *existingFlows {
// flows = append(flows, f)
//}
flows = append(flows, *existingFlows...)
}
log.Debugw("Updated flows for given flowID and onuid", log.Fields{"updatedflow": flows, "flowid": flow.FlowId, "onu": flow.OnuId})
return &flows
}
//func (f *OpenOltFlowMgr) getUpdatedFlowInfo(flow *openolt_pb2.Flow, flowStoreCookie uint64, flowCategory string) *[]rsrcMgr.FlowInfo {
// var flows []rsrcMgr.FlowInfo = []rsrcMgr.FlowInfo{rsrcMgr.FlowInfo{Flow: flow, FlowCategory: flowCategory, FlowStoreCookie: flowStoreCookie}}
// var intfId uint32
// /* For flows which trap out of the NNI, the AccessIntfId is invalid
// (set to -1). In such cases, we need to refer to the NetworkIntfId .
// */
// if flow.AccessIntfId != -1 {
// intfId = uint32(flow.AccessIntfId)
// } else {
// intfId = uint32(flow.NetworkIntfId)
// }
// // Get existing flows matching flowid for given subscriber from KV store
// existingFlows := f.resourceMgr.GetFlowIDInfo(intfId, uint32(flow.OnuId), uint32(flow.UniId), flow.FlowId)
// if existingFlows != nil {
// log.Debugw("Flow exists for given flowID, appending it to current flow", log.Fields{"flowID": flow.FlowId})
// for _, f := range *existingFlows {
// flows = append(flows, f)
// }
// }
// log.Debugw("Updated flows for given flowID and onuid", log.Fields{"updatedflow": flows, "flowid": flow.FlowId, "onu": flow.OnuId})
// return &flows
//}
func (f *OpenOltFlowMgr) updateFlowInfoToKVStore(intfID int32, onuID int32, uniID int32, flowID uint32, flows *[]rsrcMgr.FlowInfo) error {
log.Debugw("Storing flow(s) into KV store", log.Fields{"flows": *flows})
if err := f.resourceMgr.UpdateFlowIDInfo(intfID, onuID, uniID, flowID, flows); err != nil {
log.Debug("Error while Storing flow into KV store")
return err
}
log.Info("Stored flow(s) into KV store successfully!")
return nil
}
func (f *OpenOltFlowMgr) addFlowToDevice(logicalFlow *ofp.OfpFlowStats, deviceFlow *openoltpb2.Flow) bool {
var intfID uint32
/* For flows which trap out of the NNI, the AccessIntfId is invalid
(set to -1). In such cases, we need to refer to the NetworkIntfId .
*/
if deviceFlow.AccessIntfId != -1 {
intfID = uint32(deviceFlow.AccessIntfId)
} else {
// REVIST : Why ponport is given as network port?
intfID = uint32(deviceFlow.NetworkIntfId)
}
log.Debugw("Sending flow to device via grpc", log.Fields{"flow": *deviceFlow})
_, err := f.deviceHandler.Client.FlowAdd(context.Background(), deviceFlow)
st, _ := status.FromError(err)
if st.Code() == codes.AlreadyExists {
log.Debug("Flow already exists", log.Fields{"err": err, "deviceFlow": deviceFlow})
return false
}
if err != nil {
log.Errorw("Failed to Add flow to device", log.Fields{"err": err, "deviceFlow": deviceFlow})
f.resourceMgr.FreeFlowID(intfID, deviceFlow.OnuId, deviceFlow.UniId, deviceFlow.FlowId)
return false
}
f.registerFlow(logicalFlow, deviceFlow)
log.Debugw("Flow added to device successfully ", log.Fields{"flow": *deviceFlow})
return true
}
func (f *OpenOltFlowMgr) removeFlowFromDevice(deviceFlow *openoltpb2.Flow) bool {
log.Debugw("Sending flow to device via grpc", log.Fields{"flow": *deviceFlow})
_, err := f.deviceHandler.Client.FlowRemove(context.Background(), deviceFlow)
if err != nil {
if f.deviceHandler.device.ConnectStatus == common.ConnectStatus_UNREACHABLE {
log.Warnw("Can not remove flow from device since it's unreachable", log.Fields{"err": err, "deviceFlow": deviceFlow})
//Assume the flow is removed
return true
}
log.Errorw("Failed to Remove flow from device", log.Fields{"err": err, "deviceFlow": deviceFlow})
return false
}
log.Debugw("Flow removed from device successfully ", log.Fields{"flow": *deviceFlow})
return true
}
/*func register_flow(deviceFlow *openolt_pb2.Flow, logicalFlow *ofp.OfpFlowStats){
//update core flows_proxy : flows_proxy.update('/', flows)
}
func generateStoredId(flowId uint32, direction string)uint32{
if direction == Upstream{
log.Debug("Upstream flow shifting flowid")
return ((0x1 << 15) | flowId)
}else if direction == Downstream{
log.Debug("Downstream flow not shifting flowid")
return flowId
}else{
log.Errorw("Unrecognized direction",log.Fields{"direction": direction})
return flowId
}
}
*/
func (f *OpenOltFlowMgr) addLLDPFlow(flow *ofp.OfpFlowStats, portNo uint32) {
classifierInfo := make(map[string]interface{})
actionInfo := make(map[string]interface{})
classifierInfo[EthType] = uint32(LldpEthType)
classifierInfo[PacketTagType] = Untagged
actionInfo[TrapToHost] = true
// LLDP flow is installed to trap LLDP packets on the NNI port.
// We manage flow_id resource pool on per PON port basis.
// Since this situation is tricky, as a hack, we pass the NNI port
// index (network_intf_id) as PON port Index for the flow_id resource
// pool. Also, there is no ONU Id available for trapping LLDP packets
// on NNI port, use onu_id as -1 (invalid)
// ****************** CAVEAT *******************
// This logic works if the NNI Port Id falls within the same valid
// range of PON Port Ids. If this doesn't work for some OLT Vendor
// we need to have a re-look at this.
// *********************************************
var onuID = -1
var uniID = -1
var gemPortID = -1
var networkInterfaceID = IntfIDFromNniPortNum(portNo)
var flowStoreCookie = getFlowStoreCookie(classifierInfo, uint32(0))
if present := f.resourceMgr.IsFlowCookieOnKVStore(uint32(networkInterfaceID), int32(onuID), int32(uniID), flowStoreCookie); present {
log.Debug("Flow-exists--not-re-adding")
return
}
flowID, err := f.resourceMgr.GetFlowID(uint32(networkInterfaceID), int32(onuID), int32(uniID), uint32(gemPortID), flowStoreCookie, "", 0)
if err != nil {
log.Errorw("Flow id unavailable for LLDP traponNNI flow", log.Fields{"error": err})
return
}
var classifierProto *openoltpb2.Classifier
var actionProto *openoltpb2.Action
if classifierProto = makeOpenOltClassifierField(classifierInfo); classifierProto == nil {
log.Error("Error in making classifier protobuf for LLDP trap on nni flow")
return
}
log.Debugw("Created classifier proto", log.Fields{"classifier": *classifierProto})
if actionProto = makeOpenOltActionField(actionInfo); actionProto == nil {
log.Error("Error in making action protobuf for LLDP trap on nni flow")
return
}
log.Debugw("Created action proto", log.Fields{"action": *actionProto})
downstreamflow := openoltpb2.Flow{AccessIntfId: int32(-1), // AccessIntfId not required
OnuId: int32(onuID), // OnuId not required
UniId: int32(uniID), // UniId not used
FlowId: flowID,
FlowType: Downstream,
NetworkIntfId: int32(networkInterfaceID),
GemportId: int32(gemPortID),
Classifier: classifierProto,
Action: actionProto,
Priority: int32(flow.Priority),
Cookie: flow.Cookie,
PortNo: portNo}
if ok := f.addFlowToDevice(flow, &downstreamflow); ok {
log.Debug("LLDP trap on NNI flow added to device successfully")
flowsToKVStore := f.getUpdatedFlowInfo(&downstreamflow, flowStoreCookie, "", flowID, flow.Id)
if err := f.updateFlowInfoToKVStore(int32(networkInterfaceID),
int32(onuID),
int32(uniID),
flowID, flowsToKVStore); err != nil {
log.Errorw("Error uploading LLDP flow into KV store", log.Fields{"flow": downstreamflow, "error": err})
}
}
return
}
func getUniPortPath(intfID uint32, onuID int32, uniID int32) string {
return fmt.Sprintf("pon-{%d}/onu-{%d}/uni-{%d}", intfID, onuID, uniID)
}
//getOnuChildDevice to fetch onu
func (f *OpenOltFlowMgr) getOnuChildDevice(intfID uint32, onuID uint32) (*voltha.Device, error) {
log.Debugw("GetChildDevice", log.Fields{"pon port": intfID, "onuId": onuID})
parentPortNo := IntfIDToPortNo(intfID, voltha.Port_PON_OLT)
onuDevice := f.deviceHandler.GetChildDevice(parentPortNo, onuID)
if onuDevice == nil {
log.Errorw("onu not found", log.Fields{"intfId": parentPortNo, "onuId": onuID})
return nil, errors.New("onu not found")
}
log.Debugw("Successfully received child device from core", log.Fields{"child_device": *onuDevice})
return onuDevice, nil
}
func findNextFlow(flow *ofp.OfpFlowStats) *ofp.OfpFlowStats {
log.Info("unimplemented flow : %v", flow)
return nil
}
func (f *OpenOltFlowMgr) clearFlowsAndSchedulerForLogicalPort(childDevice *voltha.Device, logicalPort *voltha.LogicalPort) {
log.Info("unimplemented device %v, logicalport %v", childDevice, logicalPort)
}
func (f *OpenOltFlowMgr) decodeStoredID(id uint64) (uint64, string) {
if id>>15 == 0x1 {
return id & 0x7fff, Upstream
}
return id, Downstream
}
//clearResources clears pon resources in kv store and the device
func (f *OpenOltFlowMgr) clearResources(flow *ofp.OfpFlowStats, Intf uint32, onuID int32, uniID int32,
gemPortID int32, flowID uint32, flowDirection string,
portNum uint32, updatedFlows []rsrcMgr.FlowInfo) error {
tpID := getTpIDFromFlow(flow)
if len(updatedFlows) >= 0 {
// There are still flows referencing the same flow_id.
// So the flow should not be freed yet.
// For ex: Case of HSIA where same flow is shared
// between DS and US.
f.updateFlowInfoToKVStore(int32(Intf), int32(onuID), int32(uniID), flowID, &updatedFlows)
if len(updatedFlows) == 0 {
log.Debugw("Releasing flow Id to resource manager", log.Fields{"Intf": Intf, "onuId": onuID, "uniId": uniID, "flowId": flowID})
f.resourceMgr.FreeFlowID(Intf, int32(onuID), int32(uniID), flowID)
uni := getUniPortPath(Intf, onuID, uniID)
tpPath := f.getTPpath(Intf, uni, tpID)
log.Debugw("Getting-techprofile-instance-for-subscriber", log.Fields{"TP-PATH": tpPath})
techprofileInst, err := f.techprofile[Intf].GetTPInstanceFromKVStore(tpID, tpPath)
if err != nil { // This should not happen, something wrong in KV backend transaction
log.Errorw("Error in fetching tech profile instance from KV store", log.Fields{"tpID": 20, "path": tpPath})
return err
}
if techprofileInst == nil {
log.Errorw("Tech-profile-instance-does-not-exist-in-KV Store", log.Fields{"tpPath": tpPath})
return err
}
gemPK := gemPortKey{Intf, uint32(gemPortID)}
if f.isGemPortUsedByAnotherFlow(gemPK) {
flowIDs := f.flowsUsedByGemPort[gemPK]
for i, flowIDinMap := range flowIDs {
if flowIDinMap == flowID {
flowIDs = append(flowIDs[:i], flowIDs[i+1:]...)
f.flowsUsedByGemPort[gemPK] = flowIDs
break
}
}
log.Debugw("Gem port id is still used by other flows", log.Fields{"gemPortID": gemPortID, "usedByFlows": flowIDs})
return nil
}
log.Debugf("Gem port id %d is not used by another flow - releasing the gem port", gemPortID)
f.resourceMgr.RemoveGemPortIDForOnu(Intf, uint32(onuID), uint32(uniID), uint32(gemPortID))
// TODO: The TrafficQueue corresponding to this gem-port also should be removed immediately.
// But it is anyway eventually removed later when the TechProfile is freed, so not a big issue for now.
f.resourceMgr.RemoveGEMportPonportToOnuMapOnKVStore(uint32(gemPortID), Intf)
f.onuIdsLock.Lock()
delete(f.flowsUsedByGemPort, gemPK)
//delete(f.onuGemPortIds, gemPK)
f.resourceMgr.FreeGemPortID(Intf, uint32(onuID), uint32(uniID), uint32(gemPortID))
f.onuIdsLock.Unlock()
ok, _ := f.isTechProfileUsedByAnotherGem(Intf, uint32(onuID), uint32(uniID), techprofileInst, uint32(gemPortID))
if !ok {
f.resourceMgr.RemoveTechProfileIDForOnu(Intf, uint32(onuID), uint32(uniID), tpID)
f.RemoveSchedulerQueues(schedQueue{direction: tp_pb.Direction_UPSTREAM, intfID: Intf, onuID: uint32(onuID), uniID: uint32(uniID), tpID: tpID, uniPort: portNum, tpInst: techprofileInst})
f.RemoveSchedulerQueues(schedQueue{direction: tp_pb.Direction_DOWNSTREAM, intfID: Intf, onuID: uint32(onuID), uniID: uint32(uniID), tpID: tpID, uniPort: portNum, tpInst: techprofileInst})
f.DeleteTechProfileInstance(Intf, uint32(onuID), uint32(uniID), "", tpID)
f.resourceMgr.FreeAllocID(Intf, uint32(onuID), uint32(uniID), techprofileInst.UsScheduler.AllocID)
// TODO: Send a "Delete TechProfile" message to ONU to do its own clean up on ONU OMCI stack
}
}
}
return nil
}
func (f *OpenOltFlowMgr) clearFlowFromResourceManager(flow *ofp.OfpFlowStats, flowDirection string) {
log.Debugw("clearFlowFromResourceManager", log.Fields{"flowDirection": flowDirection, "flow": *flow})
var updatedFlows []rsrcMgr.FlowInfo
var flowID uint32
var onuID, uniID int32
classifierInfo := make(map[string]interface{})
portNum, Intf, onu, uni, inPort, ethType, err := FlowExtractInfo(flow, flowDirection)
if err != nil {
log.Error(err)
return
}
onuID = int32(onu)
uniID = int32(uni)
for _, field := range flows.GetOfbFields(flow) {
if field.Type == flows.IP_PROTO {
classifierInfo[IPProto] = field.GetIpProto()
log.Debug("field-type-ip-proto", log.Fields{"classifierInfo[IP_PROTO]": classifierInfo[IPProto].(uint32)})
}
}
log.Debugw("Extracted access info from flow to be deleted",
log.Fields{"ponIntf": Intf, "onuID": onuID, "uniID": uniID})
if ethType == LldpEthType || ((classifierInfo[IPProto] == IPProtoDhcp) && (flowDirection == "downstream")) {
onuID = -1
uniID = -1
log.Debug("Trap on nni flow set oni, uni to -1")
Intf = IntfIDFromNniPortNum(inPort)
}
flowIds := f.resourceMgr.GetCurrentFlowIDsForOnu(Intf, onuID, uniID)
for _, flowID = range flowIds {
flowInfo := f.resourceMgr.GetFlowIDInfo(Intf, onuID, uniID, flowID)
if flowInfo == nil {
log.Debugw("No FlowInfo found found in KV store",
log.Fields{"Intf": Intf, "onuID": onuID, "uniID": uniID, "flowID": flowID})
return
}
updatedFlows = nil
for _, flow := range *flowInfo {
updatedFlows = append(updatedFlows, flow)
}
for i, storedFlow := range updatedFlows {
if flow.Id == storedFlow.LogicalFlowID {
removeFlowMessage := openoltpb2.Flow{FlowId: storedFlow.Flow.FlowId, FlowType: storedFlow.Flow.FlowType}
log.Debugw("Flow to be deleted", log.Fields{"flow": storedFlow})
if ok := f.removeFlowFromDevice(&removeFlowMessage); ok {
log.Debug("Flow removed from device successfully")
//Remove the Flow from FlowInfo
updatedFlows = append(updatedFlows[:i], updatedFlows[i+1:]...)
err = f.clearResources(flow, Intf, onuID, uniID, storedFlow.Flow.GemportId,
flowID, flowDirection, portNum, updatedFlows)
if err != nil {
log.Error("Failed to clear resources for flow", log.Fields{"flow": storedFlow})
return
}
} else {
log.Error("Failed to remove flow from device")
return
}
}
}
}
}
//RemoveFlow removes the flow from the device
func (f *OpenOltFlowMgr) RemoveFlow(flow *ofp.OfpFlowStats) {
log.Debugw("Removing Flow", log.Fields{"flow": flow})
var direction string
actionInfo := make(map[string]interface{})
for _, action := range flows.GetActions(flow) {
if action.Type == flows.OUTPUT {
if out := action.GetOutput(); out != nil {
actionInfo[Output] = out.GetPort()
log.Debugw("action-type-output", log.Fields{"out_port": actionInfo[Output].(uint32)})
} else {
log.Error("Invalid output port in action")
return
}
}
}
if IsUpstream(actionInfo[Output].(uint32)) {
direction = Upstream
} else {
direction = Downstream
}
f.clearFlowFromResourceManager(flow, direction) //TODO: Take care of the limitations
return
}
// AddFlow add flow to device
func (f *OpenOltFlowMgr) AddFlow(flow *ofp.OfpFlowStats, flowMetadata *voltha.FlowMetadata) {
classifierInfo := make(map[string]interface{})
actionInfo := make(map[string]interface{})
var UsMeterID uint32
var DsMeterID uint32
log.Debug("Adding Flow", log.Fields{"flow": flow, "flowMetadata": flowMetadata})
formulateClassifierInfoFromFlow(classifierInfo, flow)
err := formulateActionInfoFromFlow(actionInfo, classifierInfo, flow)
if err != nil {
// Error logging is already done in the called function
// So just return in case of error
return
}
/* Controller bound trap flows */
err = formulateControllerBoundTrapFlowInfo(actionInfo, classifierInfo, flow)
if err != nil {
// error if any, already logged in the called function
return
}
log.Infow("Flow ports", log.Fields{"classifierInfo_inport": classifierInfo[InPort], "action_output": actionInfo[Output]})
portNo, intfID, onuID, uniID := ExtractAccessFromFlow(classifierInfo[InPort].(uint32), actionInfo[Output].(uint32))
if ethType, ok := classifierInfo[EthType]; ok {
if ethType.(uint32) == LldpEthType {
log.Info("Adding LLDP flow")
f.addLLDPFlow(flow, portNo)
return
}
}
if ipProto, ok := classifierInfo[IPProto]; ok {
if ipProto.(uint32) == IPProtoDhcp {
if udpSrc, ok := classifierInfo[UDPSrc]; ok {
if udpSrc.(uint32) == uint32(67) {
log.Debug("trap-dhcp-from-nni-flow")
f.addDHCPTrapFlowOnNNI(flow, classifierInfo, portNo)
return
}
}
}
}
f.deviceHandler.AddUniPortToOnu(intfID, onuID, portNo)
f.resourceMgr.AddUniPortToOnuInfo(intfID, onuID, portNo)
TpID := getTpIDFromFlow(flow)
log.Debugw("TPID for this subcriber", log.Fields{"TpId": TpID, "pon": intfID, "onuID": onuID, "uniID": uniID})
if IsUpstream(actionInfo[Output].(uint32)) {
UsMeterID = flows.GetMeterIdFromFlow(flow)
log.Debugw("Upstream-flow-meter-id", log.Fields{"UsMeterID": UsMeterID})
} else {
DsMeterID = flows.GetMeterIdFromFlow(flow)
log.Debugw("Downstream-flow-meter-id", log.Fields{"DsMeterID": DsMeterID})
}
f.divideAndAddFlow(intfID, onuID, uniID, portNo, classifierInfo, actionInfo, flow, uint32(TpID), UsMeterID, DsMeterID, flowMetadata)
}
//sendTPDownloadMsgToChild send payload
func (f *OpenOltFlowMgr) sendTPDownloadMsgToChild(intfID uint32, onuID uint32, uniID uint32, uni string, TpID uint32) error {
onuDevice, err := f.getOnuChildDevice(intfID, onuID)
if err != nil {
log.Errorw("Error while fetching Child device from core", log.Fields{"onuId": onuID})
return err
}
log.Debugw("Got child device from OLT device handler", log.Fields{"device": *onuDevice})
tpPath := f.getTPpath(intfID, uni, TpID)
tpDownloadMsg := &ic.InterAdapterTechProfileDownloadMessage{UniId: uniID, Path: tpPath}
log.Infow("Sending Load-tech-profile-request-to-brcm-onu-adapter", log.Fields{"msg": *tpDownloadMsg})
sendErr := f.deviceHandler.AdapterProxy.SendInterAdapterMessage(context.Background(),
tpDownloadMsg,
ic.InterAdapterMessageType_TECH_PROFILE_DOWNLOAD_REQUEST,
f.deviceHandler.deviceType,
onuDevice.Type,
onuDevice.Id,
onuDevice.ProxyAddress.DeviceId, "")
if sendErr != nil {
log.Errorw("send techprofile-download request error", log.Fields{"fromAdapter": f.deviceHandler.deviceType,
"toAdapter": onuDevice.Type, "onuId": onuDevice.Id,
"proxyDeviceId": onuDevice.ProxyAddress.DeviceId})
return sendErr
}
log.Debugw("success Sending Load-tech-profile-request-to-brcm-onu-adapter", log.Fields{"msg": tpDownloadMsg})
return nil
}
//UpdateOnuInfo function adds onu info to cache and kvstore
func (f *OpenOltFlowMgr) UpdateOnuInfo(intfID uint32, onuID uint32, serialNum string) {
f.lockCache.Lock()
defer f.lockCache.Unlock()
onu := rsrcMgr.OnuGemInfo{OnuID: onuID, SerialNumber: serialNum, IntfID: intfID}
f.onuGemInfo[intfID] = append(f.onuGemInfo[intfID], onu)
if err := f.resourceMgr.AddOnuInfo(intfID, onu); err != nil {
log.Errorw("failed to add onu info", log.Fields{"onu": onu})
return
}
log.Debugw("Updated onuinfo", log.Fields{"intfID": intfID, "onuID": onuID, "serialNum": serialNum})
}
//addGemPortToOnuInfoMap function adds GEMport to ONU map
func (f *OpenOltFlowMgr) addGemPortToOnuInfoMap(intfID uint32, onuID uint32, gemPort uint32) {
f.lockCache.Lock()
defer f.lockCache.Unlock()
onugem := f.onuGemInfo[intfID]
// update the gem to the local cache as well as to kv strore
for idx, onu := range onugem {
if onu.OnuID == onuID {
// check if gem already exists , else update the cache and kvstore
for _, gem := range onu.GemPorts {
if gem == gemPort {
log.Debugw("Gem already in cache, no need to update cache and kv store",
log.Fields{"gem": gemPort})
return
}
}
onugem[idx].GemPorts = append(onugem[idx].GemPorts, gemPort)
f.onuGemInfo[intfID] = onugem
}
}
err := f.resourceMgr.AddGemToOnuGemInfo(intfID, onuID, gemPort)
if err != nil {
log.Errorw("Failed to add gem to onu", log.Fields{"intfId": intfID, "onuId": onuID, "gemPort": gemPort})
return
}
}
// This function Lookup maps by serialNumber or (intfId, gemPort)
//getOnuIDfromGemPortMap Returns OnuID,nil if found or set 0,error if no onuId is found for serialNumber or (intfId, gemPort)
func (f *OpenOltFlowMgr) getOnuIDfromGemPortMap(serialNumber string, intfID uint32, gemPortID uint32) (uint32, error) {
f.lockCache.Lock()
defer f.lockCache.Unlock()
log.Debugw("Getting ONU ID from GEM port and PON port", log.Fields{"serialNumber": serialNumber, "intfId": intfID, "gemPortId": gemPortID})
// get onuid from the onugem info cache
onugem := f.onuGemInfo[intfID]
for _, onu := range onugem {
for _, gem := range onu.GemPorts {
if gem == gemPortID {
return onu.OnuID, nil
}
}
}
log.Errorw("onuid is not found", log.Fields{"serialNumber": serialNumber, "intfId": intfID, "gemPort": gemPortID})
return uint32(0), errors.New("key error, onuid is not found") // ONU ID 0 is not a valid one
}
//GetLogicalPortFromPacketIn function computes logical port UNI/NNI port from packet-in indication and returns the same
func (f *OpenOltFlowMgr) GetLogicalPortFromPacketIn(packetIn *openoltpb2.PacketIndication) (uint32, error) {
var logicalPortNum uint32
var onuID uint32
var err error
if packetIn.IntfType == "pon" {
// packet indication does not have serial number , so sending as nil
if onuID, err = f.getOnuIDfromGemPortMap("", packetIn.IntfId, packetIn.GemportId); err != nil {
log.Errorw("Unable to get ONU ID from GEM/PON port", log.Fields{"pon port": packetIn.IntfId, "gemport": packetIn.GemportId})
return logicalPortNum, err
}
if packetIn.PortNo != 0 {
logicalPortNum = packetIn.PortNo
} else {
uniID := uint32(0) // FIXME - multi-uni support
logicalPortNum = MkUniPortNum(packetIn.IntfId, onuID, uniID)
}
// Store the gem port through which the packet_in came. Use the same gem port for packet_out
f.UpdateGemPortForPktIn(packetIn.IntfId, onuID, logicalPortNum, packetIn.GemportId)
} else if packetIn.IntfType == "nni" {
logicalPortNum = IntfIDToPortNo(packetIn.IntfId, voltha.Port_ETHERNET_NNI)
}
log.Debugw("Retrieved logicalport from packet-in", log.Fields{"logicalPortNum": logicalPortNum, "IntfType": packetIn.IntfType})
return logicalPortNum, nil
}
//GetPacketOutGemPortID returns gemPortId
func (f *OpenOltFlowMgr) GetPacketOutGemPortID(intfID uint32, onuID uint32, portNum uint32) (uint32, error) {
var gemPortID uint32
var err error
f.lockCache.Lock()
defer f.lockCache.Unlock()
pktInkey := rsrcMgr.PacketInInfoKey{IntfID: intfID, OnuID: onuID, LogicalPort: portNum}
gemPortID, ok := f.packetInGemPort[pktInkey]
if ok {
log.Debugw("Found gemport for pktin key", log.Fields{"pktinkey": pktInkey, "gem": gemPortID})
return gemPortID, err
}
//If gem is not found in cache try to get it from kv store, if found in kv store, update the cache and return.
gemPortID, err = f.resourceMgr.GetGemPortFromOnuPktIn(intfID, onuID, portNum)
if err == nil {
if gemPortID != 0 {
f.packetInGemPort[pktInkey] = gemPortID
log.Debugw("Found gem port from kv store and updating cache with gemport",
log.Fields{"pktinkey": pktInkey, "gem": gemPortID})
return gemPortID, nil
}
}
log.Errorw("Failed to get gemport", log.Fields{"pktinkey": pktInkey, "gem": gemPortID})
return uint32(0), err
}
func installFlowOnAllGemports(
f1 func(intfId uint32, onuId uint32, uniId uint32,
portNo uint32, classifier map[string]interface{}, action map[string]interface{},
logicalFlow *ofp.OfpFlowStats, allocId uint32, gemPortId uint32),
f2 func(intfId uint32, onuId uint32, uniId uint32, portNo uint32,
logicalFlow *ofp.OfpFlowStats, allocId uint32, gemPortId uint32, vlanId uint32,
classifier map[string]interface{}, action map[string]interface{}),
args map[string]uint32,
classifier map[string]interface{}, action map[string]interface{},
logicalFlow *ofp.OfpFlowStats,
gemPorts []uint32,
FlowType string,
vlanID ...uint32) {
log.Debugw("Installing flow on all GEM ports", log.Fields{"FlowType": FlowType, "gemPorts": gemPorts, "vlan": vlanID})
for _, gemPortID := range gemPorts {
if FlowType == HsiaFlow || FlowType == DhcpFlow {
f1(args["intfId"], args["onuId"], args["uniId"], args["portNo"], classifier, action, logicalFlow, args["allocId"], gemPortID)
} else if FlowType == EapolFlow {
f2(args["intfId"], args["onuId"], args["uniId"], args["portNo"], logicalFlow, args["allocId"], gemPortID, vlanID[0], classifier, action)
} else {
log.Errorw("Unrecognized Flow Type", log.Fields{"FlowType": FlowType})
return
}
}
}
func (f *OpenOltFlowMgr) addDHCPTrapFlowOnNNI(logicalFlow *ofp.OfpFlowStats, classifier map[string]interface{}, portNo uint32) {
log.Debug("Adding trap-dhcp-of-nni-flow")
action := make(map[string]interface{})
classifier[PacketTagType] = DoubleTag
action[TrapToHost] = true
var err error
var networkInterfaceID uint32
/* We manage flowId resource pool on per PON port basis.
Since this situation is tricky, as a hack, we pass the NNI port
index (network_intf_id) as PON port Index for the flowId resource
pool. Also, there is no ONU Id available for trapping DHCP packets
on NNI port, use onu_id as -1 (invalid)
****************** CAVEAT *******************
This logic works if the NNI Port Id falls within the same valid
range of PON Port Ids. If this doesn't work for some OLT Vendor
we need to have a re-look at this.
*********************************************
*/
onuID := -1
uniID := -1
gemPortID := -1
allocID := -1
networkInterfaceID, err = getNniIntfID(classifier, action)
if err != nil {
log.Error("Failed to get nniIntf ID")
return
}
flowStoreCookie := getFlowStoreCookie(classifier, uint32(0))
if present := f.resourceMgr.IsFlowCookieOnKVStore(uint32(networkInterfaceID), int32(onuID), int32(uniID), flowStoreCookie); present {
log.Debug("Flow-exists--not-re-adding")
return
}
flowID, err := f.resourceMgr.GetFlowID(uint32(networkInterfaceID), int32(onuID), int32(uniID), uint32(gemPortID), flowStoreCookie, "", 0)
if err != nil {
log.Errorw("Flow id unavailable for DHCP traponNNI flow", log.Fields{"error": err})
return
}
var classifierProto *openoltpb2.Classifier
var actionProto *openoltpb2.Action
if classifierProto = makeOpenOltClassifierField(classifier); classifierProto == nil {
log.Error("Error in making classifier protobuf for dhcp trap on nni flow")
return
}
log.Debugw("Created classifier proto", log.Fields{"classifier": *classifierProto})
if actionProto = makeOpenOltActionField(action); actionProto == nil {
log.Error("Error in making action protobuf for dhcp trap on nni flow")
return
}
log.Debugw("Created action proto", log.Fields{"action": *actionProto})
downstreamflow := openoltpb2.Flow{AccessIntfId: int32(-1), // AccessIntfId not required
OnuId: int32(onuID), // OnuId not required
UniId: int32(uniID), // UniId not used
FlowId: flowID,
FlowType: Downstream,
AllocId: int32(allocID), // AllocId not used
NetworkIntfId: int32(networkInterfaceID),
GemportId: int32(gemPortID), // GemportId not used
Classifier: classifierProto,
Action: actionProto,
Priority: int32(logicalFlow.Priority),
Cookie: logicalFlow.Cookie,
PortNo: portNo}
if ok := f.addFlowToDevice(logicalFlow, &downstreamflow); ok {
log.Debug("DHCP trap on NNI flow added to device successfully")
flowsToKVStore := f.getUpdatedFlowInfo(&downstreamflow, flowStoreCookie, "", flowID, logicalFlow.Id)
if err := f.updateFlowInfoToKVStore(int32(networkInterfaceID),
int32(onuID),
int32(uniID),
flowID, flowsToKVStore); err != nil {
log.Errorw("Error uploading DHCP DL flow into KV store", log.Fields{"flow": downstreamflow, "error": err})
}
}
return
}
func verifyMeterIDAndGetDirection(MeterID uint32, Dir tp_pb.Direction) (string, error) {
if MeterID == 0 { // This should never happen
log.Error("Invalid meter id")
return "", errors.New("invalid meter id")
}
if Dir == tp_pb.Direction_UPSTREAM {
return "upstream", nil
} else if Dir == tp_pb.Direction_DOWNSTREAM {
return "downstream", nil
}
return "", nil
}
func (f *OpenOltFlowMgr) checkAndAddFlow(args map[string]uint32, classifierInfo map[string]interface{},
actionInfo map[string]interface{}, flow *ofp.OfpFlowStats, TpInst *tp.TechProfile, gemPorts []uint32,
TpID uint32, uni string) {
var gemPort uint32
intfID := args[IntfID]
onuID := args[OnuID]
uniID := args[UniID]
portNo := args[PortNo]
allocID := TpInst.UsScheduler.AllocID
if ipProto, ok := classifierInfo[IPProto]; ok {
if ipProto.(uint32) == IPProtoDhcp {
log.Info("Adding DHCP flow")
if pcp, ok := classifierInfo[VlanPcp]; ok {
gemPort = f.techprofile[intfID].GetGemportIDForPbit(TpInst,
tp_pb.Direction_UPSTREAM,
pcp.(uint32))
//Adding DHCP upstream flow
f.addDHCPTrapFlow(intfID, onuID, uniID, portNo, classifierInfo, actionInfo, flow, allocID, gemPort)
} else {
//Adding DHCP upstream flow to all gemports
installFlowOnAllGemports(f.addDHCPTrapFlow, nil, args, classifierInfo, actionInfo, flow, gemPorts, DhcpFlow)
}
} else if ipProto == IgmpProto {
log.Info("igmp flow add ignored, not implemented yet")
return
} else {
log.Errorw("Invalid-Classifier-to-handle", log.Fields{"classifier": classifierInfo, "action": actionInfo})
return
}
} else if ethType, ok := classifierInfo[EthType]; ok {
if ethType.(uint32) == EapEthType {
log.Info("Adding EAPOL flow")
var vlanID uint32
if val, ok := classifierInfo[VlanVid]; ok {
vlanID = (val.(uint32)) & VlanvIDMask
} else {
vlanID = DefaultMgmtVlan
}
if pcp, ok := classifierInfo[VlanPcp]; ok {
gemPort = f.techprofile[intfID].GetGemportIDForPbit(TpInst,
tp_pb.Direction_UPSTREAM,
pcp.(uint32))
f.addEAPOLFlow(intfID, onuID, uniID, portNo, flow, allocID, gemPort, vlanID, classifierInfo, actionInfo)
} else {
installFlowOnAllGemports(nil, f.addEAPOLFlow, args, classifierInfo, actionInfo, flow, gemPorts, EapolFlow, vlanID)
}
}
} else if _, ok := actionInfo[PushVlan]; ok {
log.Info("Adding upstream data rule")
if pcp, ok := classifierInfo[VlanPcp]; ok {
gemPort = f.techprofile[intfID].GetGemportIDForPbit(TpInst,
tp_pb.Direction_UPSTREAM,
pcp.(uint32))
//Adding HSIA upstream flow
f.addUpstreamDataFlow(intfID, onuID, uniID, portNo, classifierInfo, actionInfo, flow, allocID, gemPort)
} else {
//Adding HSIA upstream flow to all gemports
installFlowOnAllGemports(f.addUpstreamDataFlow, nil, args, classifierInfo, actionInfo, flow, gemPorts, HsiaFlow)
}
} else if _, ok := actionInfo[PopVlan]; ok {
log.Info("Adding Downstream data rule")
if pcp, ok := classifierInfo[VlanPcp]; ok {
gemPort = f.techprofile[intfID].GetGemportIDForPbit(TpInst,
tp_pb.Direction_DOWNSTREAM,
pcp.(uint32))
//Adding HSIA downstream flow
f.addDownstreamDataFlow(intfID, onuID, uniID, portNo, classifierInfo, actionInfo, flow, allocID, gemPort)
} else {
//Adding HSIA downstream flow to all gemports
installFlowOnAllGemports(f.addDownstreamDataFlow, nil, args, classifierInfo, actionInfo, flow, gemPorts, HsiaFlow)
}
} else {
log.Errorw("Invalid-flow-type-to-handle", log.Fields{"classifier": classifierInfo, "action": actionInfo, "flow": flow})
return
}
// Send Techprofile download event to child device in go routine as it takes time
go f.sendTPDownloadMsgToChild(intfID, onuID, uniID, uni, TpID)
}
func (f *OpenOltFlowMgr) isGemPortUsedByAnotherFlow(gemPK gemPortKey) bool {
flowIDList := f.flowsUsedByGemPort[gemPK]
if len(flowIDList) > 1 {
return true
}
return false
}
func (f *OpenOltFlowMgr) isTechProfileUsedByAnotherGem(ponIntf uint32, onuID uint32, uniID uint32, tpInst *tp.TechProfile, gemPortID uint32) (bool, uint32) {
currentGemPorts := f.resourceMgr.GetCurrentGEMPortIDsForOnu(ponIntf, onuID, uniID)
tpGemPorts := tpInst.UpstreamGemPortAttributeList
for _, currentGemPort := range currentGemPorts {
for _, tpGemPort := range tpGemPorts {
if (currentGemPort == tpGemPort.GemportID) && (currentGemPort != gemPortID) {
return true, currentGemPort
}
}
}
return false, 0
}
func formulateClassifierInfoFromFlow(classifierInfo map[string]interface{}, flow *ofp.OfpFlowStats) {
for _, field := range flows.GetOfbFields(flow) {
if field.Type == flows.ETH_TYPE {
classifierInfo[EthType] = field.GetEthType()
log.Debug("field-type-eth-type", log.Fields{"classifierInfo[ETH_TYPE]": classifierInfo[EthType].(uint32)})
} else if field.Type == flows.IP_PROTO {
classifierInfo[IPProto] = field.GetIpProto()
log.Debug("field-type-ip-proto", log.Fields{"classifierInfo[IP_PROTO]": classifierInfo[IPProto].(uint32)})
} else if field.Type == flows.IN_PORT {
classifierInfo[InPort] = field.GetPort()
log.Debug("field-type-in-port", log.Fields{"classifierInfo[IN_PORT]": classifierInfo[InPort].(uint32)})
} else if field.Type == flows.VLAN_VID {
classifierInfo[VlanVid] = field.GetVlanVid() & 0xfff
log.Debug("field-type-vlan-vid", log.Fields{"classifierInfo[VLAN_VID]": classifierInfo[VlanVid].(uint32)})
} else if field.Type == flows.VLAN_PCP {
classifierInfo[VlanPcp] = field.GetVlanPcp()
log.Debug("field-type-vlan-pcp", log.Fields{"classifierInfo[VLAN_PCP]": classifierInfo[VlanPcp].(uint32)})
} else if field.Type == flows.UDP_DST {
classifierInfo[UDPDst] = field.GetUdpDst()
log.Debug("field-type-udp-dst", log.Fields{"classifierInfo[UDP_DST]": classifierInfo[UDPDst].(uint32)})
} else if field.Type == flows.UDP_SRC {
classifierInfo[UDPSrc] = field.GetUdpSrc()
log.Debug("field-type-udp-src", log.Fields{"classifierInfo[UDP_SRC]": classifierInfo[UDPSrc].(uint32)})
} else if field.Type == flows.IPV4_DST {
classifierInfo[Ipv4Dst] = field.GetIpv4Dst()
log.Debug("field-type-ipv4-dst", log.Fields{"classifierInfo[IPV4_DST]": classifierInfo[Ipv4Dst].(uint32)})
} else if field.Type == flows.IPV4_SRC {
classifierInfo[Ipv4Src] = field.GetIpv4Src()
log.Debug("field-type-ipv4-src", log.Fields{"classifierInfo[IPV4_SRC]": classifierInfo[Ipv4Src].(uint32)})
} else if field.Type == flows.METADATA {
classifierInfo[Metadata] = field.GetTableMetadata()
log.Debug("field-type-metadata", log.Fields{"classifierInfo[Metadata]": classifierInfo[Metadata].(uint64)})
} else if field.Type == flows.TUNNEL_ID {
classifierInfo[TunnelID] = field.GetTunnelId()
log.Debug("field-type-tunnelId", log.Fields{"classifierInfo[TUNNEL_ID]": classifierInfo[TunnelID].(uint64)})
} else {
log.Errorw("Un supported field type", log.Fields{"type": field.Type})
return
}
}
}
func formulateActionInfoFromFlow(actionInfo, classifierInfo map[string]interface{}, flow *ofp.OfpFlowStats) error {
for _, action := range flows.GetActions(flow) {
if action.Type == flows.OUTPUT {
if out := action.GetOutput(); out != nil {
actionInfo[Output] = out.GetPort()
log.Debugw("action-type-output", log.Fields{"out_port": actionInfo[Output].(uint32)})
} else {
log.Error("Invalid output port in action")
return errors.New("invalid output port in action")
}
} else if action.Type == flows.POP_VLAN {
actionInfo[PopVlan] = true
log.Debugw("action-type-pop-vlan", log.Fields{"in_port": classifierInfo[InPort].(uint32)})
} else if action.Type == flows.PUSH_VLAN {
if out := action.GetPush(); out != nil {
if tpid := out.GetEthertype(); tpid != 0x8100 {
log.Errorw("Invalid ethertype in push action", log.Fields{"ethertype": actionInfo[PushVlan].(int32)})
} else {
actionInfo[PushVlan] = true
actionInfo[TPID] = tpid
log.Debugw("action-type-push-vlan",
log.Fields{"push_tpid": actionInfo[TPID].(uint32), "in_port": classifierInfo[InPort].(uint32)})
}
}
} else if action.Type == flows.SET_FIELD {
if out := action.GetSetField(); out != nil {
if field := out.GetField(); field != nil {
if ofClass := field.GetOxmClass(); ofClass != ofp.OfpOxmClass_OFPXMC_OPENFLOW_BASIC {
log.Errorw("Invalid openflow class", log.Fields{"class": ofClass})
return errors.New("invalid openflow class")
}
/*log.Debugw("action-type-set-field",log.Fields{"field": field, "in_port": classifierInfo[IN_PORT].(uint32)})*/
if ofbField := field.GetOfbField(); ofbField != nil {
if fieldtype := ofbField.GetType(); fieldtype == ofp.OxmOfbFieldTypes_OFPXMT_OFB_VLAN_VID {
if vlan := ofbField.GetVlanVid(); vlan != 0 {
actionInfo[VlanVid] = vlan & 0xfff
log.Debugw("action-set-vlan-vid", log.Fields{"actionInfo[VLAN_VID]": actionInfo[VlanVid].(uint32)})
} else {
log.Error("No Invalid vlan id in set vlan-vid action")
}
} else {
log.Errorw("unsupported-action-set-field-type", log.Fields{"type": fieldtype})
}
}
}
}
} else {
log.Errorw("Un supported action type", log.Fields{"type": action.Type})
return errors.New("un supported action type")
}
}
return nil
}
func formulateControllerBoundTrapFlowInfo(actionInfo, classifierInfo map[string]interface{}, flow *ofp.OfpFlowStats) error {
if isControllerFlow := IsControllerBoundFlow(actionInfo[Output].(uint32)); isControllerFlow {
log.Debug("Controller bound trap flows, getting inport from tunnelid")
/* Get UNI port/ IN Port from tunnel ID field for upstream controller bound flows */
if portType := IntfIDToPortTypeName(classifierInfo[InPort].(uint32)); portType == voltha.Port_PON_OLT {
if uniPort := flows.GetChildPortFromTunnelId(flow); uniPort != 0 {
classifierInfo[InPort] = uniPort
log.Debugw("upstream pon-to-controller-flow,inport-in-tunnelid", log.Fields{"newInPort": classifierInfo[InPort].(uint32), "outPort": actionInfo[Output].(uint32)})
} else {
log.Error("upstream pon-to-controller-flow, NO-inport-in-tunnelid")
return errors.New("upstream pon-to-controller-flow, NO-inport-in-tunnelid")
}
}
} else {
log.Debug("Non-Controller flows, getting uniport from tunnelid")
// Downstream flow from NNI to PON port , Use tunnel ID as new OUT port / UNI port
if portType := IntfIDToPortTypeName(actionInfo[Output].(uint32)); portType == voltha.Port_PON_OLT {
if uniPort := flows.GetChildPortFromTunnelId(flow); uniPort != 0 {
actionInfo[Output] = uniPort
log.Debugw("downstream-nni-to-pon-port-flow, outport-in-tunnelid", log.Fields{"newOutPort": actionInfo[Output].(uint32), "outPort": actionInfo[Output].(uint32)})
} else {
log.Debug("downstream-nni-to-pon-port-flow, no-outport-in-tunnelid", log.Fields{"InPort": classifierInfo[InPort].(uint32), "outPort": actionInfo[Output].(uint32)})
return errors.New("downstream-nni-to-pon-port-flow, no-outport-in-tunnelid")
}
// Upstream flow from PON to NNI port , Use tunnel ID as new IN port / UNI port
} else if portType := IntfIDToPortTypeName(classifierInfo[InPort].(uint32)); portType == voltha.Port_PON_OLT {
if uniPort := flows.GetChildPortFromTunnelId(flow); uniPort != 0 {
classifierInfo[InPort] = uniPort
log.Debugw("upstream-pon-to-nni-port-flow, inport-in-tunnelid", log.Fields{"newInPort": actionInfo[Output].(uint32),
"outport": actionInfo[Output].(uint32)})
} else {
log.Debug("upstream-pon-to-nni-port-flow, no-inport-in-tunnelid", log.Fields{"InPort": classifierInfo[InPort].(uint32),
"outPort": actionInfo[Output].(uint32)})
return errors.New("upstream-pon-to-nni-port-flow, no-inport-in-tunnelid")
}
}
}
return nil
}
func getTpIDFromFlow(flow *ofp.OfpFlowStats) uint32 {
/* Metadata 8 bytes:
Most Significant 2 Bytes = Inner VLAN
Next 2 Bytes = Tech Profile ID(TPID)
Least Significant 4 Bytes = Port ID
Flow Metadata carries Tech-Profile (TP) ID and is mandatory in all
subscriber related flows.
*/
metadata := flows.GetMetadataFromWriteMetadataAction(flow)
if metadata == 0 {
log.Error("Metadata is not present in flow which is mandatory")
return 0
}
TpID := flows.GetTechProfileIDFromWriteMetaData(metadata)
return uint32(TpID)
}
func appendUnique(slice []uint32, item uint32) []uint32 {
for _, sliceElement := range slice {
if sliceElement == item {
return slice
}
}
return append(slice, item)
}
// getNniIntfID gets nni intf id from the flow classifier/action
func getNniIntfID(classifier map[string]interface{}, action map[string]interface{}) (uint32, error) {
portType := IntfIDToPortTypeName(classifier[InPort].(uint32))
if portType == voltha.Port_PON_OLT {
intfID := IntfIDFromNniPortNum(action[Output].(uint32))
log.Debugw("output Nni IntfID is", log.Fields{"intfid": intfID})
return intfID, nil
} else if portType == voltha.Port_ETHERNET_NNI {
intfID := IntfIDFromNniPortNum(classifier[InPort].(uint32))
log.Debugw("input Nni IntfID is", log.Fields{"intfid": intfID})
return intfID, nil
}
return uint32(0), nil
}
// UpdateGemPortForPktIn updates gemport for packet-in in to the cache and to the kv store as well.
func (f *OpenOltFlowMgr) UpdateGemPortForPktIn(intfID uint32, onuID uint32, logicalPort uint32, gemPort uint32) {
pktInkey := rsrcMgr.PacketInInfoKey{IntfID: intfID, OnuID: onuID, LogicalPort: logicalPort}
f.lockCache.Lock()
defer f.lockCache.Unlock()
_, ok := f.packetInGemPort[pktInkey]
if ok {
log.Debugw("pktin key found in cache , no need to update kv as we are assuming both will be in sync",
log.Fields{"pktinkey": pktInkey, "gem": gemPort})
} else {
f.packetInGemPort[pktInkey] = gemPort
f.resourceMgr.UpdateGemPortForPktIn(pktInkey, gemPort)
log.Debugw("pktin key not found in local cache updating cache and kv store", log.Fields{"pktinkey": pktInkey, "gem": gemPort})
}
return
}
// AddUniPortToOnuInfo adds uni port to the onugem info both in cache and kvstore.
func (f *OpenOltFlowMgr) AddUniPortToOnuInfo(intfID uint32, onuID uint32, portNum uint32) {
f.lockCache.Lock()
defer f.lockCache.Unlock()
onugem := f.onuGemInfo[intfID]
for idx, onu := range onugem {
if onu.OnuID == onuID {
for _, uni := range onu.UniPorts {
if uni == portNum {
log.Debugw("uni already in cache, no need to update cache and kv store",
log.Fields{"uni": portNum})
return
}
}
onugem[idx].UniPorts = append(onugem[idx].UniPorts, portNum)
f.onuGemInfo[intfID] = onugem
}
}
f.resourceMgr.AddUniPortToOnuInfo(intfID, onuID, portNum)
}