pool = new SmbTransportPoolImpl();

        // Setup default mock behaviors
        when(ctx.getConfig()).thenReturn(config);
        when(ctx.getNameServiceClient()).thenReturn(nameSvc);
        when(ctx.getCredentials()).thenReturn(creds);
        when(ctx.getTransportPool()).thenReturn(pool);

        // Default config values
        when(config.getLocalAddr()).thenReturn(null);

	}

	ctx = lkctx.Context()
	defer locker.Unlock(lkctx)

	// Perform callhome once and then keep running it at regular intervals.
	performCallhome(ctx)

	callhomeTimer := time.NewTimer(globalCallhomeConfig.FrequencyDur())
	defer callhomeTimer.Stop()

	for {
		if !globalCallhomeConfig.Enabled() {
			// Stop the processing as callhome got disabled
			return false
		}

		select {
		case <-ctx.Done():

		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
		return
	}

	_, err := objAPI.GetBucketInfo(ctx, bucketName, BucketOptions{})
	if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

	config, err := globalBucketMetadataSys.GetNotificationConfig(bucketName)
	if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, errIAMActionNotAllowed), r.URL)
		return
	}

	if err := globalIAMSys.DeleteUser(ctx, accessKey, true); err != nil {
		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}

	replLogIf(ctx, globalSiteReplicationSys.IAMChangeHook(ctx, madmin.SRIAMItem{
		Type: madmin.SRIAMItemIAMUser,
		IAMUser: &madmin.SRIAMUser{

		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}

	if err := globalTierConfigMgr.Remove(ctx, tier, force); err != nil {
		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}

	if err := globalTierConfigMgr.Save(ctx, objAPI); err != nil {
		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}

	}

	return updatedAt, sys.save(ctx, meta)
}

func (sys *BucketMetadataSys) save(ctx context.Context, meta BucketMetadata) error {
	objAPI := newObjectLayerFn()
	if objAPI == nil {
		return errServerNotInitialized
	}

	if isMinioMetaBucketName(meta.Name) {
		return errInvalidArgument
	}

	if err := meta.Save(ctx, objAPI); err != nil {
		return err
	}

type peerS3Client interface {
	ListBuckets(ctx context.Context, opts BucketOptions) ([]BucketInfo, error)
	HealBucket(ctx context.Context, bucket string, opts madmin.HealOpts) (madmin.HealResultItem, error)
	GetBucketInfo(ctx context.Context, bucket string, opts BucketOptions) (BucketInfo, error)
	MakeBucket(ctx context.Context, bucket string, opts MakeBucketOptions) error
	DeleteBucket(ctx context.Context, bucket string, opts DeleteBucketOptions) error

func (c *lockRESTClient) RLock(ctx context.Context, args dsync.LockArgs) (reply bool, err error) {
	return c.call(ctx, lockRPCRLock, &args)
}

// Lock calls lock REST API.
func (c *lockRESTClient) Lock(ctx context.Context, args dsync.LockArgs) (reply bool, err error) {
	return c.call(ctx, lockRPCLock, &args)
}

// RUnlock calls read unlock REST API.

func (driver *ftpDriver) Rename(ctx *ftp.Context, fromObjPath string, toObjPath string) (err error) {
	stopFn := globalFtpMetrics.log(ctx, fromObjPath, toObjPath)
	defer stopFn(0, err)

	return NotImplemented{}
}

// MakeDir implements ftpDriver
func (driver *ftpDriver) MakeDir(ctx *ftp.Context, objPath string) (err error) {
	stopFn := globalFtpMetrics.log(ctx, objPath)
	defer stopFn(0, err)

	// Set the newly generated credentials.
	updatedAt, err := globalIAMSys.SetTempUser(ctx, cred.AccessKey, cred, "")
	if err != nil {
		writeSTSErrorResponse(ctx, w, ErrSTSInternalError, err)
		return
	}

	// Call hook for site replication.
	if cred.ParentUser != globalActiveCred.AccessKey {
		replLogIf(ctx, globalSiteReplicationSys.IAMChangeHook(ctx, madmin.SRIAMItem{
			Type: madmin.SRIAMItemSTSAcc,