[#306] Rename Private service to Control service

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>

cmd/neofs-node/control.go

@@ -0,0 +1,76 @@
+package main
+
+import (
+	"context"
+	"encoding/hex"
+	"net"
+
+	crypto "github.com/nspcc-dev/neofs-crypto"
+	"github.com/nspcc-dev/neofs-node/pkg/services/control"
+	controlSvc "github.com/nspcc-dev/neofs-node/pkg/services/control/server"
+	"github.com/pkg/errors"
+	"google.golang.org/grpc"
+)
+
+const (
+	cfgCtrlSvcSection = "control"
+
+	cfgCtrlSvcAllowedKeys = cfgCtrlSvcSection + ".permitted_keys"
+
+	cfgCtrlSvcGRPCSection = cfgCtrlSvcSection + ".grpc"
+	cfgCtrlGRPCEndpoint   = cfgCtrlSvcGRPCSection + ".endpoint"
+)
+
+func initControlService(c *cfg) {
+	strKeys := c.viper.GetStringSlice(cfgCtrlSvcAllowedKeys)
+	keys := make([][]byte, 0, len(strKeys)+1) // +1 for node key
+
+	keys = append(keys, crypto.MarshalPublicKey(&c.key.PublicKey))
+
+	for i := range strKeys {
+		key, err := hex.DecodeString(strKeys[i])
+		fatalOnErr(err)
+
+		if crypto.UnmarshalPublicKey(key) == nil {
+			fatalOnErr(errors.Errorf("invalid permitted key for Control service %s", strKeys[i]))
+		}
+
+		keys = append(keys, key)
+	}
+
+	ctlSvc := controlSvc.New(
+		controlSvc.WithKey(c.key),
+		controlSvc.WithAllowedKeys(keys),
+		controlSvc.WithHealthChecker(c),
+	)
+
+	var (
+		err      error
+		lis      net.Listener
+		endpoint = c.viper.GetString(cfgCtrlGRPCEndpoint)
+	)
+
+	if endpoint == "" || endpoint == c.viper.GetString(cfgListenAddress) {
+		lis = c.cfgGRPC.listener
+		c.cfgControlService.server = c.cfgGRPC.server
+	} else {
+		lis, err = net.Listen("tcp", endpoint)
+		fatalOnErr(err)
+
+		c.cfgControlService.server = grpc.NewServer()
+	}
+
+	control.RegisterControlServiceServer(c.cfgControlService.server, ctlSvc)
+
+	c.workers = append(c.workers, newWorkerFromFunc(func(ctx context.Context) {
+		fatalOnErr(c.cfgControlService.server.Serve(lis))
+	}))
+}
+
+func (c *cfg) setHealthStatus(st control.HealthStatus) {
+	c.healthStatus.Store(int32(st))
+}
+
+func (c *cfg) HealthStatus() control.HealthStatus {
+	return control.HealthStatus(c.healthStatus.Load())
+}