small refactor*

server/pkg/go-nfs/helpers/nullauthhandler.go

@@ -0,0 +1,59 @@
+package helpers
+
+import (
+	"context"
+	"net"
+
+	"git.kmsign.ru/royalcat/tstor/server/pkg/ctxbilly"
+	nfs "git.kmsign.ru/royalcat/tstor/server/pkg/go-nfs"
+)
+
+// NewNullAuthHandler creates a handler for the provided filesystem
+func NewNullAuthHandler(fs nfs.Filesystem) nfs.Handler {
+	return &NullAuthHandler{fs}
+}
+
+// NullAuthHandler returns a NFS backing that exposes a given file system in response to all mount requests.
+type NullAuthHandler struct {
+	fs nfs.Filesystem
+}
+
+// Mount backs Mount RPC Requests, allowing for access control policies.
+func (h *NullAuthHandler) Mount(ctx context.Context, conn net.Conn, req nfs.MountRequest) (status nfs.MountStatus, hndl nfs.Filesystem, auths []nfs.AuthFlavor) {
+	status = nfs.MountStatusOk
+	hndl = h.fs
+	auths = []nfs.AuthFlavor{nfs.AuthFlavorNull}
+	return
+}
+
+// Change provides an interface for updating file attributes.
+func (h *NullAuthHandler) Change(fs nfs.Filesystem) nfs.Change {
+	if c, ok := h.fs.(ctxbilly.Change); ok {
+		return c
+	}
+	return nil
+}
+
+// FSStat provides information about a filesystem.
+func (h *NullAuthHandler) FSStat(context.Context, nfs.Filesystem, *nfs.FSStat) error {
+	return nil
+}
+
+// ToHandle handled by CachingHandler
+func (h *NullAuthHandler) ToHandle(context.Context, nfs.Filesystem, []string) []byte {
+	return []byte{}
+}
+
+// FromHandle handled by CachingHandler
+func (h *NullAuthHandler) FromHandle(context.Context, []byte) (nfs.Filesystem, []string, error) {
+	return nil, []string{}, nil
+}
+
+func (c *NullAuthHandler) InvalidateHandle(context.Context, nfs.Filesystem, []byte) error {
+	return nil
+}
+
+// HandleLImit handled by cachingHandler
+func (h *NullAuthHandler) HandleLimit() int {
+	return -1
+}