frostfs-node/cmd/neofs-node/netmap.go

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package main
import (
"bytes"
"github.com/nspcc-dev/neofs-api-go/pkg/netmap"
netmapGRPC "github.com/nspcc-dev/neofs-api-go/v2/netmap/grpc"
crypto "github.com/nspcc-dev/neofs-crypto"
"github.com/nspcc-dev/neofs-node/pkg/morph/event"
netmapEvent "github.com/nspcc-dev/neofs-node/pkg/morph/event/netmap"
netmapTransportGRPC "github.com/nspcc-dev/neofs-node/pkg/network/transport/netmap/grpc"
"github.com/nspcc-dev/neofs-node/pkg/services/control"
netmapService "github.com/nspcc-dev/neofs-node/pkg/services/netmap"
"github.com/pkg/errors"
"go.uber.org/atomic"
"go.uber.org/zap"
)
// primary solution of local network state dump.
type networkState struct {
epoch *atomic.Uint64
}
func newNetworkState() *networkState {
return &networkState{
epoch: atomic.NewUint64(0),
}
}
func (s *networkState) CurrentEpoch() uint64 {
return s.epoch.Load()
}
func (s *networkState) setCurrentEpoch(v uint64) {
s.epoch.Store(v)
}
func initNetmapService(c *cfg) {
peerInfo := new(netmap.NodeInfo)
peerInfo.SetAddress(c.localAddr.String())
peerInfo.SetPublicKey(crypto.MarshalPublicKey(&c.key.PublicKey))
peerInfo.SetAttributes(c.cfgNodeInfo.attributes...)
c.cfgNodeInfo.info = peerInfo
netmapGRPC.RegisterNetmapServiceServer(c.cfgGRPC.server,
netmapTransportGRPC.New(
netmapService.NewSignService(
c.key,
netmapService.NewResponseService(
netmapService.NewExecutionService(
c.cfgNodeInfo.info.ToV2(),
c.apiVersion,
),
c.respSvc,
),
),
),
)
addNewEpochNotificationHandler(c, func(ev event.Event) {
c.cfgNetmap.state.setCurrentEpoch(ev.(netmapEvent.NewEpoch).EpochNumber())
})
if c.cfgNetmap.reBootstrapEnabled {
addNewEpochNotificationHandler(c, func(ev event.Event) {
n := ev.(netmapEvent.NewEpoch).EpochNumber()
if n%c.cfgNetmap.reBootstrapInterval == 0 {
err := c.cfgNetmap.wrapper.AddPeer(c.cfgNodeInfo.info)
if err != nil {
c.log.Warn("can't send re-bootstrap tx", zap.Error(err))
}
}
})
}
addNewEpochNotificationHandler(c, func(ev event.Event) {
e := ev.(netmapEvent.NewEpoch).EpochNumber()
netStatus, err := c.netmapStatus(e)
if err != nil {
c.log.Error("could not update network status on new epoch",
zap.Uint64("epoch", e),
zap.String("error", err.Error()),
)
return
}
c.setNetmapStatus(netStatus)
})
}
func bootstrapNode(c *cfg) {
initState(c)
err := c.cfgNetmap.wrapper.AddPeer(c.cfgNodeInfo.info)
fatalOnErr(errors.Wrap(err, "bootstrap error"))
}
func addNetmapNotificationHandler(c *cfg, sTyp string, h event.Handler) {
typ := event.TypeFromString(sTyp)
if c.cfgNetmap.subscribers == nil {
c.cfgNetmap.subscribers = make(map[event.Type][]event.Handler, 1)
}
c.cfgNetmap.subscribers[typ] = append(c.cfgNetmap.subscribers[typ], h)
}
func setNetmapNotificationParser(c *cfg, sTyp string, p event.Parser) {
typ := event.TypeFromString(sTyp)
if c.cfgNetmap.parsers == nil {
c.cfgNetmap.parsers = make(map[event.Type]event.Parser, 1)
}
c.cfgNetmap.parsers[typ] = p
}
func initState(c *cfg) {
epoch, err := c.cfgNetmap.wrapper.Epoch()
fatalOnErr(errors.Wrap(err, "could not initialize current epoch number"))
netStatus, err := c.netmapStatus(epoch)
fatalOnErr(errors.Wrap(err, "could not init network status"))
c.setNetmapStatus(netStatus)
c.log.Info("initial network state",
zap.Uint64("epoch", epoch),
zap.Stringer("status", netStatus),
)
c.cfgNetmap.state.setCurrentEpoch(epoch)
}
func (c *cfg) netmapStatus(epoch uint64) (control.NetmapStatus, error) {
// calculate current network state
nm, err := c.cfgNetmap.wrapper.GetNetMapByEpoch(epoch)
if err != nil {
return control.NetmapStatus_STATUS_UNDEFINED, err
}
if c.inNetmap(nm) {
return control.NetmapStatus_ONLINE, nil
}
return control.NetmapStatus_OFFLINE, nil
}
func (c *cfg) inNetmap(nm *netmap.Netmap) bool {
for _, n := range nm.Nodes {
if bytes.Equal(n.PublicKey(), crypto.MarshalPublicKey(&c.key.PublicKey)) {
return true
}
}
return false
}
func addNewEpochNotificationHandler(c *cfg, h event.Handler) {
addNetmapNotificationHandler(c, newEpochNotification, h)
}
func goOffline(c *cfg) {
err := c.cfgNetmap.wrapper.UpdatePeerState(
crypto.MarshalPublicKey(&c.key.PublicKey),
netmap.NodeStateOffline,
)
if err != nil {
c.log.Error("could not go offline",
zap.String("error", err.Error()),
)
} else {
c.log.Info("request to go offline successfully sent")
}
}