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data_resync.go
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data_resync.go
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// Copyright (c) 2017 Cisco and/or its affiliates.
//
// 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 vpp
import (
"fmt"
"strconv"
"strings"
"time"
"github.com/ligato/cn-infra/datasync"
"github.com/ligato/cn-infra/logging"
"github.com/ligato/vpp-agent/plugins/vpp/model/acl"
"github.com/ligato/vpp-agent/plugins/vpp/model/bfd"
"github.com/ligato/vpp-agent/plugins/vpp/model/interfaces"
"github.com/ligato/vpp-agent/plugins/vpp/model/ipsec"
"github.com/ligato/vpp-agent/plugins/vpp/model/l2"
"github.com/ligato/vpp-agent/plugins/vpp/model/l3"
"github.com/ligato/vpp-agent/plugins/vpp/model/l4"
"github.com/ligato/vpp-agent/plugins/vpp/model/nat"
"github.com/ligato/vpp-agent/plugins/vpp/model/srv6"
"github.com/ligato/vpp-agent/plugins/vpp/model/stn"
"github.com/ligato/vpp-agent/plugins/vpp/srplugin"
)
// DataResyncReq is used to transfer expected configuration of the VPP to the plugins.
type DataResyncReq struct {
// ACLs is a list af all access lists that are expected to be in VPP after RESYNC.
ACLs []*acl.AccessLists_Acl
// Interfaces is a list af all interfaces that are expected to be in VPP after RESYNC.
Interfaces []*interfaces.Interfaces_Interface
// SingleHopBFDSession is a list af all BFD sessions that are expected to be in VPP after RESYNC.
SingleHopBFDSession []*bfd.SingleHopBFD_Session
// SingleHopBFDKey is a list af all BFD authentication keys that are expected to be in VPP after RESYNC.
SingleHopBFDKey []*bfd.SingleHopBFD_Key
// SingleHopBFDEcho is a list af all BFD echo functions that are expected to be in VPP after RESYNC.
SingleHopBFDEcho []*bfd.SingleHopBFD_EchoFunction
// BridgeDomains is a list af all BDs that are expected to be in VPP after RESYNC.
BridgeDomains []*l2.BridgeDomains_BridgeDomain
// FibTableEntries is a list af all FIBs that are expected to be in VPP after RESYNC.
FibTableEntries []*l2.FibTable_FibEntry
// XConnects is a list af all XCons that are expected to be in VPP after RESYNC.
XConnects []*l2.XConnectPairs_XConnectPair
// StaticRoutes is a list af all Static Routes that are expected to be in VPP after RESYNC.
StaticRoutes []*l3.StaticRoutes_Route
// ArpEntries is a list af all ARP entries that are expected to be in VPP after RESYNC.
ArpEntries []*l3.ArpTable_ArpEntry
// ProxyArpInterfaces is a list af all proxy ARP interface entries that are expected to be in VPP after RESYNC.
ProxyArpInterfaces []*l3.ProxyArpInterfaces_InterfaceList
// ProxyArpRanges is a list af all proxy ARP ranges that are expected to be in VPP after RESYNC.
ProxyArpRanges []*l3.ProxyArpRanges_RangeList
// IPScanNeigh is a IP scan neighbor config that is expected to be set in VPP after RESYNC.
IPScanNeigh *l3.IPScanNeighbor
// L4Features is a bool flag that is expected to be set in VPP after RESYNC.
L4Features *l4.L4Features
// AppNamespaces is a list af all App Namespaces that are expected to be in VPP after RESYNC.
AppNamespaces []*l4.AppNamespaces_AppNamespace
// StnRules is a list of all STN Rules that are expected to be in VPP after RESYNC
StnRules []*stn.STN_Rule
// NatGlobal is a definition of global NAT config
Nat44Global *nat.Nat44Global
// Nat44SNat is a list of all SNAT configurations expected to be in VPP after RESYNC
Nat44SNat []*nat.Nat44SNat_SNatConfig
// Nat44DNat is a list of all DNAT configurations expected to be in VPP after RESYNC
Nat44DNat []*nat.Nat44DNat_DNatConfig
// IPSecSPDs is a list of all IPSec Security Policy Databases expected to be in VPP after RESYNC
IPSecSPDs []*ipsec.SecurityPolicyDatabases_SPD
// IPSecSAs is a list of all IPSec Security Associations expected to be in VPP after RESYNC
IPSecSAs []*ipsec.SecurityAssociations_SA
// IPSecTunnels is a list of all IPSec Tunnel interfaces expected to be in VPP after RESYNC
IPSecTunnels []*ipsec.TunnelInterfaces_Tunnel
// LocalSids is a list of all segment routing local SIDs expected to be in VPP after RESYNC
LocalSids []*srv6.LocalSID
// SrPolicies is a list of all segment routing policies expected to be in VPP after RESYNC
SrPolicies []*srv6.Policy
// SrPolicySegments is a list of all segment routing policy segments (with identifiable name) expected to be in VPP after RESYNC
SrPolicySegments []*srplugin.NamedPolicySegment
// SrSteerings is a list of all segment routing steerings (with identifiable name) expected to be in VPP after RESYNC
SrSteerings []*srplugin.NamedSteering
}
// NewDataResyncReq is a constructor.
func NewDataResyncReq() *DataResyncReq {
return &DataResyncReq{
ACLs: []*acl.AccessLists_Acl{},
Interfaces: []*interfaces.Interfaces_Interface{},
SingleHopBFDSession: []*bfd.SingleHopBFD_Session{},
SingleHopBFDKey: []*bfd.SingleHopBFD_Key{},
SingleHopBFDEcho: []*bfd.SingleHopBFD_EchoFunction{},
BridgeDomains: []*l2.BridgeDomains_BridgeDomain{},
FibTableEntries: []*l2.FibTable_FibEntry{},
XConnects: []*l2.XConnectPairs_XConnectPair{},
StaticRoutes: []*l3.StaticRoutes_Route{},
ArpEntries: []*l3.ArpTable_ArpEntry{},
ProxyArpInterfaces: []*l3.ProxyArpInterfaces_InterfaceList{},
ProxyArpRanges: []*l3.ProxyArpRanges_RangeList{},
IPScanNeigh: &l3.IPScanNeighbor{},
L4Features: &l4.L4Features{},
AppNamespaces: []*l4.AppNamespaces_AppNamespace{},
StnRules: []*stn.STN_Rule{},
Nat44Global: &nat.Nat44Global{},
Nat44SNat: []*nat.Nat44SNat_SNatConfig{},
Nat44DNat: []*nat.Nat44DNat_DNatConfig{},
IPSecSPDs: []*ipsec.SecurityPolicyDatabases_SPD{},
IPSecSAs: []*ipsec.SecurityAssociations_SA{},
IPSecTunnels: []*ipsec.TunnelInterfaces_Tunnel{},
LocalSids: []*srv6.LocalSID{},
SrPolicies: []*srv6.Policy{},
SrPolicySegments: []*srplugin.NamedPolicySegment{},
SrSteerings: []*srplugin.NamedSteering{},
}
}
// The function delegates resync request to ifplugin/l2plugin/l3plugin resync requests (in this particular order).
func (plugin *Plugin) resyncConfigPropageFullRequest(req *DataResyncReq) error {
plugin.Log.Info("resync the VPP Configuration begin")
startTime := time.Now()
defer func() {
vppResync := time.Since(startTime)
plugin.Log.WithField("durationInNs", vppResync.Nanoseconds()).Infof("resync the VPP Configuration end in %v", vppResync)
}()
return plugin.resyncConfig(req)
}
// delegates optimize-cold-stasrt resync request
func (plugin *Plugin) resyncConfigPropageOptimizedRequest(req *DataResyncReq) error {
plugin.Log.Info("resync the VPP Configuration begin")
startTime := time.Now()
defer func() {
vppResync := time.Since(startTime)
plugin.Log.WithField("durationInNs", vppResync.Nanoseconds()).Infof("resync the VPP Configuration end in %v", vppResync)
}()
// If the strategy is optimize-cold-start, run interface configurator resync which provides the information
// whether resync should continue or be terminated
stopResync := plugin.ifConfigurator.VerifyVPPConfigPresence(req.Interfaces)
if stopResync {
// terminate the resync operation
return nil
}
// continue resync normally
return plugin.resyncConfig(req)
}
// The function delegates resync request to ifplugin/l2plugin/l3plugin resync requests (in this particular order).
func (plugin *Plugin) resyncConfig(req *DataResyncReq) error {
// store all resync errors
var resyncErrs []error
if !plugin.droppedFromResync(interfaces.Prefix) {
if errs := plugin.ifConfigurator.Resync(req.Interfaces); errs != nil {
resyncErrs = append(resyncErrs, errs...)
}
}
if !plugin.droppedFromResync(acl.Prefix) {
if err := plugin.aclConfigurator.Resync(req.ACLs); err != nil {
resyncErrs = append(resyncErrs, err)
}
}
if !plugin.droppedFromResync(bfd.AuthKeysPrefix) {
if err := plugin.bfdConfigurator.ResyncAuthKey(req.SingleHopBFDKey); err != nil {
resyncErrs = append(resyncErrs, err)
}
}
if !plugin.droppedFromResync(bfd.SessionPrefix) {
if err := plugin.bfdConfigurator.ResyncSession(req.SingleHopBFDSession); err != nil {
resyncErrs = append(resyncErrs, err)
}
}
if !plugin.droppedFromResync(bfd.EchoFunctionPrefix) {
if err := plugin.bfdConfigurator.ResyncEchoFunction(req.SingleHopBFDEcho); err != nil {
resyncErrs = append(resyncErrs, err)
}
}
if !plugin.droppedFromResync(l2.BdPrefix) {
if err := plugin.bdConfigurator.Resync(req.BridgeDomains); err != nil {
resyncErrs = append(resyncErrs, err)
}
}
if !plugin.droppedFromResync(l2.FibPrefix) {
if err := plugin.fibConfigurator.Resync(req.FibTableEntries); err != nil {
resyncErrs = append(resyncErrs, err)
}
}
if !plugin.droppedFromResync(l2.XConnectPrefix) {
if err := plugin.xcConfigurator.Resync(req.XConnects); err != nil {
resyncErrs = append(resyncErrs, err)
}
}
if !plugin.droppedFromResync(l3.RoutesPrefix) {
if err := plugin.routeConfigurator.Resync(req.StaticRoutes); err != nil {
resyncErrs = append(resyncErrs, err)
}
}
if !plugin.droppedFromResync(l3.ArpPrefix) {
if err := plugin.arpConfigurator.Resync(req.ArpEntries); err != nil {
resyncErrs = append(resyncErrs, err)
}
}
if !plugin.droppedFromResync(l3.ProxyARPInterfacePrefix) {
if err := plugin.proxyArpConfigurator.ResyncInterfaces(req.ProxyArpInterfaces); err != nil {
resyncErrs = append(resyncErrs, err)
}
}
if !plugin.droppedFromResync(l3.ProxyARPRangePrefix) {
if err := plugin.proxyArpConfigurator.ResyncRanges(req.ProxyArpRanges); err != nil {
resyncErrs = append(resyncErrs, err)
}
}
if !plugin.droppedFromResync(l3.IPScanNeighPrefix) {
if err := plugin.ipNeighConfigurator.Resync(req.IPScanNeigh); err != nil {
resyncErrs = append(resyncErrs, err)
}
}
if !plugin.droppedFromResync(l4.FeaturesPrefix) {
if err := plugin.appNsConfigurator.ResyncFeatures(req.L4Features); err != nil {
resyncErrs = append(resyncErrs, err)
}
}
if !plugin.droppedFromResync(l4.NamespacesPrefix) {
if err := plugin.appNsConfigurator.ResyncAppNs(req.AppNamespaces); err != nil {
resyncErrs = append(resyncErrs, err)
}
}
if !plugin.droppedFromResync(stn.Prefix) {
if err := plugin.stnConfigurator.Resync(req.StnRules); err != nil {
resyncErrs = append(resyncErrs, err)
}
}
if !plugin.droppedFromResync(nat.GlobalPrefix) {
if err := plugin.natConfigurator.ResyncNatGlobal(req.Nat44Global); err != nil {
resyncErrs = append(resyncErrs, err)
}
}
if !plugin.droppedFromResync(nat.SNatPrefix) {
if err := plugin.natConfigurator.ResyncSNat(req.Nat44SNat); err != nil {
resyncErrs = append(resyncErrs, err)
}
}
if !plugin.droppedFromResync(nat.DNatPrefix) {
if err := plugin.natConfigurator.ResyncDNat(req.Nat44DNat); err != nil {
resyncErrs = append(resyncErrs, err)
}
}
if !plugin.droppedFromResync(ipsec.KeyPrefix) {
if err := plugin.ipSecConfigurator.Resync(req.IPSecSPDs, req.IPSecSAs, req.IPSecTunnels); err != nil {
resyncErrs = append(resyncErrs, err)
}
}
if !plugin.droppedFromResync(srv6.BasePrefix()) {
if err := plugin.srv6Configurator.Resync(req.LocalSids, req.SrPolicies, req.SrPolicySegments, req.SrSteerings); err != nil {
resyncErrs = append(resyncErrs, err)
}
}
// log errors if any
if len(resyncErrs) == 0 {
return nil
}
for i, err := range resyncErrs {
plugin.Log.Errorf("resync error #%d: %v", i, err)
}
return fmt.Errorf("%v errors occured during vppplugin resync", len(resyncErrs))
}
func (plugin *Plugin) resyncParseEvent(resyncEv datasync.ResyncEvent) *DataResyncReq {
req := NewDataResyncReq()
for key := range resyncEv.GetValues() {
plugin.Log.Debugf("Received RESYNC key %q", key)
}
for key, resyncData := range resyncEv.GetValues() {
if plugin.droppedFromResync(key) {
continue
}
if strings.HasPrefix(key, acl.Prefix) {
numAcls := appendACLInterface(resyncData, req)
plugin.Log.Debug("Received RESYNC ACL values ", numAcls)
} else if strings.HasPrefix(key, interfaces.Prefix) {
numInterfaces := appendResyncInterface(resyncData, req)
plugin.Log.Debug("Received RESYNC interface values ", numInterfaces)
} else if strings.HasPrefix(key, bfd.SessionPrefix) {
numBfdSession := resyncAppendBfdSession(resyncData, req)
plugin.Log.Debug("Received RESYNC BFD Session values ", numBfdSession)
} else if strings.HasPrefix(key, bfd.AuthKeysPrefix) {
numBfdAuthKeys := resyncAppendBfdAuthKeys(resyncData, req)
plugin.Log.Debug("Received RESYNC BFD Auth Key values ", numBfdAuthKeys)
} else if strings.HasPrefix(key, bfd.EchoFunctionPrefix) {
numBfdEchos := resyncAppendBfdEcho(resyncData, req)
plugin.Log.Debug("Received RESYNC BFD Echo values ", numBfdEchos)
} else if strings.HasPrefix(key, l2.BdPrefix) {
numBDs, numL2FIBs := resyncAppendBDs(resyncData, req)
plugin.Log.Debug("Received RESYNC BD values ", numBDs)
plugin.Log.Debug("Received RESYNC L2 FIB values ", numL2FIBs)
} else if strings.HasPrefix(key, l2.XConnectPrefix) {
numXCons := resyncAppendXCons(resyncData, req)
plugin.Log.Debug("Received RESYNC XConnects values ", numXCons)
} else if strings.HasPrefix(key, l3.VrfPrefix) {
numVRFs, numL3FIBs := resyncAppendVRFs(resyncData, req, plugin.Log)
plugin.Log.Debug("Received RESYNC VRF values ", numVRFs)
plugin.Log.Debug("Received RESYNC L3 FIB values ", numL3FIBs)
} else if strings.HasPrefix(key, l3.ArpPrefix) {
numARPs := resyncAppendARPs(resyncData, req, plugin.Log)
plugin.Log.Debug("Received RESYNC ARP values ", numARPs)
} else if strings.HasPrefix(key, l3.ProxyARPInterfacePrefix) {
numARPs := resyncAppendProxyArpInterfaces(resyncData, req, plugin.Log)
plugin.Log.Debug("Received RESYNC proxy ARP interface values ", numARPs)
} else if strings.HasPrefix(key, l3.IPScanNeighPrefix) {
resyncAppendIPScanNeighs(resyncData, req)
plugin.Log.Debug("Received RESYNC IPScanNeigh")
} else if strings.HasPrefix(key, l3.ProxyARPRangePrefix) {
numARPs := resyncAppendProxyArpRanges(resyncData, req, plugin.Log)
plugin.Log.Debug("Received RESYNC proxy ARP range values ", numARPs)
} else if strings.HasPrefix(key, l4.FeaturesPrefix) {
resyncFeatures(resyncData, req)
plugin.Log.Debug("Received RESYNC AppNs feature flag")
} else if strings.HasPrefix(key, l4.NamespacesPrefix) {
numAppNs := resyncAppendAppNs(resyncData, req)
plugin.Log.Debug("Received RESYNC AppNamespace values ", numAppNs)
} else if strings.HasPrefix(key, stn.Prefix) {
numStns := appendResyncStnRules(resyncData, req)
plugin.Log.Debug("Received RESYNC STN rules values ", numStns)
} else if strings.HasPrefix(key, nat.GlobalPrefix) {
resyncNatGlobal(resyncData, req)
plugin.Log.Debug("Received RESYNC NAT global config")
} else if strings.HasPrefix(key, nat.SNatPrefix) {
numSNats := appendResyncSNat(resyncData, req)
plugin.Log.Debug("Received RESYNC SNAT configs ", numSNats)
} else if strings.HasPrefix(key, nat.DNatPrefix) {
numDNats := appendResyncDNat(resyncData, req)
plugin.Log.Debug("Received RESYNC DNAT configs ", numDNats)
} else if strings.HasPrefix(key, ipsec.KeyPrefix) {
numIPSecs := appendResyncIPSec(resyncData, req)
plugin.Log.Debug("Received RESYNC IPSec configs ", numIPSecs)
} else if strings.HasPrefix(key, srv6.BasePrefix()) {
numSRs := appendResyncSR(resyncData, req)
plugin.Log.Debug("Received RESYNC SR configs ", numSRs)
} else {
plugin.Log.Warnf("ignoring prefix %q by VPP standard plugins", key)
}
}
return req
}
func (plugin *Plugin) droppedFromResync(key string) bool {
for _, prefix := range plugin.omittedPrefixes {
if strings.HasPrefix(key, prefix) {
return true
}
}
return false
}
func resyncAppendARPs(resyncData datasync.KeyValIterator, req *DataResyncReq, log logging.Logger) int {
num := 0
for {
if arpData, stop := resyncData.GetNext(); stop {
break
} else {
entry := &l3.ArpTable_ArpEntry{}
if err := arpData.GetValue(entry); err == nil {
req.ArpEntries = append(req.ArpEntries, entry)
num++
}
}
}
return num
}
func resyncAppendProxyArpInterfaces(resyncData datasync.KeyValIterator, req *DataResyncReq, log logging.Logger) int {
num := 0
for {
if arpData, stop := resyncData.GetNext(); stop {
break
} else {
entry := &l3.ProxyArpInterfaces_InterfaceList{}
if err := arpData.GetValue(entry); err == nil {
req.ProxyArpInterfaces = append(req.ProxyArpInterfaces, entry)
num++
}
}
}
return num
}
func resyncAppendIPScanNeighs(resyncData datasync.KeyValIterator, req *DataResyncReq) {
for {
arpData, stop := resyncData.GetNext()
if stop {
break
}
entry := &l3.IPScanNeighbor{}
if err := arpData.GetValue(entry); err == nil {
req.IPScanNeigh = entry
}
}
}
func resyncAppendProxyArpRanges(resyncData datasync.KeyValIterator, req *DataResyncReq, log logging.Logger) int {
num := 0
for {
if arpData, stop := resyncData.GetNext(); stop {
break
} else {
entry := &l3.ProxyArpRanges_RangeList{}
if err := arpData.GetValue(entry); err == nil {
req.ProxyArpRanges = append(req.ProxyArpRanges, entry)
num++
}
}
}
return num
}
func resyncAppendL3FIB(fibData datasync.KeyVal, vrfIndex string, req *DataResyncReq, log logging.Logger) error {
route := &l3.StaticRoutes_Route{}
err := fibData.GetValue(route)
if err != nil {
return err
}
// Ensure every route has the corresponding VRF index.
intVrfKeyIndex, err := strconv.Atoi(vrfIndex)
if err != nil {
return err
}
if vrfIndex != strconv.Itoa(int(route.VrfId)) {
log.Warnf("Resync: VRF index from key (%v) and from config (%v) does not match, using value from the key",
intVrfKeyIndex, route.VrfId)
route.VrfId = uint32(intVrfKeyIndex)
}
req.StaticRoutes = append(req.StaticRoutes, route)
return nil
}
func resyncAppendVRFs(resyncData datasync.KeyValIterator, req *DataResyncReq, log logging.Logger) (numVRFs, numL3FIBs int) {
numVRFs = 0
numL3FIBs = 0
for {
if vrfData, stop := resyncData.GetNext(); stop {
break
} else {
key := vrfData.GetKey()
fib, vrfIndex, _, _, _ := l3.ParseRouteKey(key)
if fib {
err := resyncAppendL3FIB(vrfData, vrfIndex, req, log)
if err == nil {
numL3FIBs++
}
} else {
log.Warn("VRF RESYNC is not implemented")
}
}
}
return numVRFs, numL3FIBs
}
func resyncAppendXCons(resyncData datasync.KeyValIterator, req *DataResyncReq) int {
num := 0
for {
if xConnectData, stop := resyncData.GetNext(); stop {
break
} else {
value := &l2.XConnectPairs_XConnectPair{}
err := xConnectData.GetValue(value)
if err == nil {
req.XConnects = append(req.XConnects, value)
num++
}
}
}
return num
}
func resyncAppendL2FIB(fibData datasync.KeyVal, req *DataResyncReq) error {
value := &l2.FibTable_FibEntry{}
err := fibData.GetValue(value)
if err == nil {
req.FibTableEntries = append(req.FibTableEntries, value)
}
return err
}
func resyncAppendBDs(resyncData datasync.KeyValIterator, req *DataResyncReq) (numBDs, numL2FIBs int) {
numBDs = 0
numL2FIBs = 0
for {
if bridgeDomainData, stop := resyncData.GetNext(); stop {
break
} else {
key := bridgeDomainData.GetKey()
fib, _, _ := l2.ParseFibKey(key)
if fib {
err := resyncAppendL2FIB(bridgeDomainData, req)
if err == nil {
numL2FIBs++
}
} else {
value := &l2.BridgeDomains_BridgeDomain{}
err := bridgeDomainData.GetValue(value)
if err == nil {
req.BridgeDomains = append(req.BridgeDomains, value)
numBDs++
}
}
}
}
return numBDs, numL2FIBs
}
func resyncAppendBfdEcho(resyncData datasync.KeyValIterator, req *DataResyncReq) int {
value := &bfd.SingleHopBFD_EchoFunction{}
num := 0
for {
if bfdData, stop := resyncData.GetNext(); stop {
break
} else {
err := bfdData.GetValue(value)
if err == nil {
req.SingleHopBFDEcho = append(req.SingleHopBFDEcho, value)
num++
}
}
}
return num
}
func resyncAppendBfdAuthKeys(resyncData datasync.KeyValIterator, req *DataResyncReq) int {
value := &bfd.SingleHopBFD_Key{}
num := 0
for {
if bfdData, stop := resyncData.GetNext(); stop {
break
} else {
err := bfdData.GetValue(value)
if err == nil {
req.SingleHopBFDKey = append(req.SingleHopBFDKey, value)
num++
}
}
}
return num
}
func resyncAppendBfdSession(resyncData datasync.KeyValIterator, req *DataResyncReq) int {
value := &bfd.SingleHopBFD_Session{}
num := 0
for {
if bfdData, stop := resyncData.GetNext(); stop {
break
} else {
err := bfdData.GetValue(value)
if err == nil {
req.SingleHopBFDSession = append(req.SingleHopBFDSession, value)
num++
}
}
}
return num
}
func appendACLInterface(resyncData datasync.KeyValIterator, req *DataResyncReq) int {
num := 0
for {
if data, stop := resyncData.GetNext(); stop {
break
} else {
value := &acl.AccessLists_Acl{}
err := data.GetValue(value)
if err == nil {
req.ACLs = append(req.ACLs, value)
num++
}
}
}
return num
}
func appendResyncInterface(resyncData datasync.KeyValIterator, req *DataResyncReq) int {
num := 0
for {
if interfaceData, stop := resyncData.GetNext(); stop {
break
} else {
value := &interfaces.Interfaces_Interface{}
err := interfaceData.GetValue(value)
if err == nil {
req.Interfaces = append(req.Interfaces, value)
num++
}
}
}
return num
}
func resyncFeatures(resyncData datasync.KeyValIterator, req *DataResyncReq) {
for {
appResyncData, stop := resyncData.GetNext()
if stop {
break
}
value := &l4.L4Features{}
err := appResyncData.GetValue(value)
if err == nil {
req.L4Features = value
}
}
}
func resyncAppendAppNs(resyncData datasync.KeyValIterator, req *DataResyncReq) int {
num := 0
for {
if appResyncData, stop := resyncData.GetNext(); stop {
break
} else {
value := &l4.AppNamespaces_AppNamespace{}
err := appResyncData.GetValue(value)
if err == nil {
req.AppNamespaces = append(req.AppNamespaces, value)
num++
}
}
}
return num
}
func appendResyncStnRules(resyncData datasync.KeyValIterator, req *DataResyncReq) int {
num := 0
for {
if stnData, stop := resyncData.GetNext(); stop {
break
} else {
value := &stn.STN_Rule{}
err := stnData.GetValue(value)
if err == nil {
req.StnRules = append(req.StnRules, value)
num++
}
}
}
return num
}
func resyncNatGlobal(resyncData datasync.KeyValIterator, req *DataResyncReq) {
natGlobalData, stop := resyncData.GetNext()
if stop {
return
}
value := &nat.Nat44Global{}
if err := natGlobalData.GetValue(value); err == nil {
req.Nat44Global = value
}
}
func appendResyncSNat(resyncData datasync.KeyValIterator, req *DataResyncReq) int {
num := 0
for {
if sNatData, stop := resyncData.GetNext(); stop {
break
} else {
value := &nat.Nat44SNat_SNatConfig{}
err := sNatData.GetValue(value)
if err == nil {
req.Nat44SNat = append(req.Nat44SNat, value)
num++
}
}
}
return num
}
func appendResyncDNat(resyncData datasync.KeyValIterator, req *DataResyncReq) int {
num := 0
for {
if dNatData, stop := resyncData.GetNext(); stop {
break
} else {
value := &nat.Nat44DNat_DNatConfig{}
err := dNatData.GetValue(value)
if err == nil {
req.Nat44DNat = append(req.Nat44DNat, value)
num++
}
}
}
return num
}
func appendResyncIPSec(resyncData datasync.KeyValIterator, req *DataResyncReq) (num int) {
for {
if data, stop := resyncData.GetNext(); stop {
break
} else {
if strings.HasPrefix(data.GetKey(), ipsec.KeyPrefixSPD) {
value := &ipsec.SecurityPolicyDatabases_SPD{}
if err := data.GetValue(value); err == nil {
req.IPSecSPDs = append(req.IPSecSPDs, value)
num++
}
} else if strings.HasPrefix(data.GetKey(), ipsec.KeyPrefixSA) {
value := &ipsec.SecurityAssociations_SA{}
if err := data.GetValue(value); err == nil {
req.IPSecSAs = append(req.IPSecSAs, value)
num++
}
} else if strings.HasPrefix(data.GetKey(), ipsec.KeyPrefixTunnel) {
value := &ipsec.TunnelInterfaces_Tunnel{}
if err := data.GetValue(value); err == nil {
req.IPSecTunnels = append(req.IPSecTunnels, value)
num++
}
}
}
}
return
}
func appendResyncSR(resyncData datasync.KeyValIterator, req *DataResyncReq) (num int) {
for {
if data, stop := resyncData.GetNext(); stop {
break
} else {
if strings.HasPrefix(data.GetKey(), srv6.LocalSIDPrefix()) {
value := &srv6.LocalSID{}
if err := data.GetValue(value); err == nil {
req.LocalSids = append(req.LocalSids, value)
num++
}
} else if strings.HasPrefix(data.GetKey(), srv6.PolicyPrefix()) {
if srv6.IsPolicySegmentPrefix(data.GetKey()) { //Policy segment
value := &srv6.PolicySegment{}
if err := data.GetValue(value); err == nil {
// TODO add proper error handling, everywhere around is missing handling of error case
if name, err := srv6.ParsePolicySegmentKey(data.GetKey()); err == nil {
req.SrPolicySegments = append(req.SrPolicySegments, &srplugin.NamedPolicySegment{Name: name, Segment: value})
num++
}
}
} else { // Policy
value := &srv6.Policy{}
if err := data.GetValue(value); err == nil {
req.SrPolicies = append(req.SrPolicies, value)
num++
}
}
} else if strings.HasPrefix(data.GetKey(), srv6.SteeringPrefix()) {
value := &srv6.Steering{}
if err := data.GetValue(value); err == nil {
req.SrSteerings = append(req.SrSteerings, &srplugin.NamedSteering{Name: strings.TrimPrefix(data.GetKey(), srv6.SteeringPrefix()), Steering: value})
num++
}
}
}
}
return
}
// All registration for above channel select (it ensures proper order during initialization) are put here.
func (plugin *Plugin) subscribeWatcher() (err error) {
plugin.Log.Debug("subscribeWatcher begin")
plugin.swIfIndexes.WatchNameToIdx(plugin.String(), plugin.ifIdxWatchCh)
plugin.Log.Debug("swIfIndexes watch registration finished")
plugin.bdIndexes.WatchNameToIdx(plugin.String(), plugin.bdIdxWatchCh)
plugin.Log.Debug("bdIndexes watch registration finished")
if plugin.Linux != nil {
// Get pointer to the map with Linux interface indexes.
linuxIfIndexes := plugin.Linux.GetLinuxIfIndexes()
if linuxIfIndexes == nil {
return fmt.Errorf("linux plugin enabled but interface indexes are not available")
}
linuxIfIndexes.WatchNameToIdx(plugin.String(), plugin.linuxIfIdxWatchCh)
plugin.Log.Debug("linuxIfIndexes watch registration finished")
}
plugin.watchConfigReg, err = plugin.Watcher.
Watch("Config VPP default plug:IF/L2/L3", plugin.changeChan, plugin.resyncConfigChan,
acl.Prefix,
interfaces.Prefix,
bfd.SessionPrefix,
bfd.AuthKeysPrefix,
bfd.EchoFunctionPrefix,
l2.BdPrefix,
l2.XConnectPrefix,
l3.VrfPrefix,
l3.ArpPrefix,
l3.ProxyARPInterfacePrefix,
l3.ProxyARPRangePrefix,
l3.IPScanNeighPrefix,
l4.FeaturesPrefix,
l4.NamespacesPrefix,
stn.Prefix,
nat.GlobalPrefix,
nat.SNatPrefix,
nat.DNatPrefix,
ipsec.KeyPrefix,
srv6.BasePrefix(),
)
if err != nil {
return err
}
plugin.watchStatusReg, err = plugin.Watcher.
Watch("Status VPP default plug:IF/L2/L3", nil, plugin.resyncStatusChan,
interfaces.StatePrefix, l2.BdStatePrefix)
if err != nil {
return err
}
plugin.Log.Debug("data Transport watch finished")
return nil
}