// Legacy configuration keys for backward compatibility (Azure AD)
    /** Legacy configuration key for Azure AD state time-to-live. */
    protected static final String AAD_STATE_TTL = "aad.state.ttl";

    /** Legacy configuration key for Azure AD authority URL. */
    protected static final String AAD_AUTHORITY = "aad.authority";

    /** Legacy configuration key for Azure AD tenant ID. */

	return s.WriteAll(ctx, volume, pathJoin(path, xlStorageFormatFile), buf)
}

func (s *xlStorage) renameLegacyMetadata(volumeDir, path string) (err error) {
	s.RLock()
	legacy := s.formatLegacy
	s.RUnlock()
	if !legacy {
		// if its not a legacy backend then this function is
		// a no-op always returns errFileNotFound
		return errFileNotFound
	}

	// Validate file path length, before reading.

// This array can have 3 kinds of objects:
//
// ``object``: If the object is uploaded the usual way: putobject, multipart-put, copyobject
//
// ``delete``: This is the delete-marker
//
// ``legacyObject``: This is the legacy object in xlV1 format, preserved until its overwritten
//
// The most recently updated element in the array is considered the latest version.

	if err = xlStorage.MakeVol(t.Context(), "exists-legacy"); err != nil {
		t.Fatalf("Unable to create a volume \"exists-legacy\", %s", err)
	}

	if err = xlStorage.AppendFile(t.Context(), "exists-legacy", "as-file/xl.json", []byte(legacyJSON)); err != nil {
		t.Fatalf("Unable to create a file \"as-file\", %s", err)
	}

	fi, err := xlStorage.ReadVersion(t.Context(), "", "exists-legacy", "as-file", "", ReadOptions{})
	if err != nil {

            }

            if ("legacy".equals(repository.getLayout())) {
                addViolation(
                        problems,
                        Severity.WARNING,
                        Version.V20,
                        prefix + "layout",
                        repository.getId(),
                        "uses the unsupported value 'legacy', artifact resolution might fail.",

			z.AccTime, bts, err = msgp.ReadTimeBytes(bts)
			if err != nil {
				err = msgp.WrapError(err, "AccTime")
				return
			}
		case "Legacy":
			z.Legacy, bts, err = msgp.ReadBoolBytes(bts)
			if err != nil {
				err = msgp.WrapError(err, "Legacy")
				return
			}
		case "VersionPurgeStatusInternal":
			z.VersionPurgeStatusInternal, bts, err = msgp.ReadStringBytes(bts)
			if err != nil {

		if err != nil {
			storageLogIf(ctx, err)
		}
		// let's the rest shutdown
	}
	return nil
}

// Legacy returns 'true' if distribution algo is CRCMOD
func (z *erasureServerPools) Legacy() (ok bool) {
	ok = true
	for _, set := range z.serverPools {
		ok = ok && set.Legacy()
	}
	return ok
}

func (z *erasureServerPools) BackendInfo() (b madmin.BackendInfo) {
	b.Type = madmin.Erasure

        return getSystemPropertyAsInt(Constants.LTR_WINDOW_SIZE_PROPERTY, 100);
    }

    /**
     * Gets the permission fields for Entra ID authentication.
     * Uses new entraid.permission.fields key with fallback to legacy aad.permission.fields.
     * @return Array of permission field names.
     */
    default String[] getEntraIdPermissionFields() {
        String value = getSystemProperty("entraid.permission.fields", null);

	queryValue := url.Values{}
	queryValue.Set("lifecycle", "")
	return makeTestTargetURL(endPoint, bucketName, "", queryValue)
}

// return URL for listing objects in the bucket with V1 legacy API.
func getListObjectsV1URL(endPoint, bucketName, prefix, maxKeys, encodingType string) string {
	queryValue := url.Values{}
	if maxKeys != "" {
		queryValue.Set("max-keys", maxKeys)
	}

                if (getContext().getConfig().isForceExtendedSecurity()) {
                    throw new SmbException("Server does not supported extended security");
                }

                log.debug("Performing legacy session setup");
                if (!(this.credentials instanceof NtlmPasswordAuthenticator npa)) {
                    throw new SmbAuthException("Incompatible credentials");
                }