ctlsock: add initial limited implementation

At the moment, in forward mode you can only encrypt paths
and in reverse mode you can only decrypt paths.

2 files changed, 20 insertions, 1 deletions

diff --git a/internal/fusefrontend_reverse/ctlsock_interface.go b/internal/fusefrontend_reverse/ctlsock_interface.go
new file mode 100644
index 0000000..448663f
--- /dev/null
+++ b/internal/fusefrontend_reverse/ctlsock_interface.go
@@ -0,0 +1,19 @@
+package fusefrontend_reverse
+
+import (
+	"errors"
+
+	"github.com/rfjakob/gocryptfs/internal/ctlsock"
+)
+
+var _ ctlsock.Interface = &reverseFS{} // Verify that interface is implemented.
+
+// EncryptPath implements ctlsock.Backend
+func (rfs *reverseFS) EncryptPath(plainPath string) (string, error) {
+	return "", errors.New("Not implemented")
+}
+
+// DecryptPath implements ctlsock.Backend
+func (rfs *reverseFS) DecryptPath(plainPath string) (string, error) {
+	return rfs.decryptPath(plainPath)
+}
diff --git a/internal/fusefrontend_reverse/rfs.go b/internal/fusefrontend_reverse/rfs.go
index 87a2602..84348f7 100644
--- a/internal/fusefrontend_reverse/rfs.go
+++ b/internal/fusefrontend_reverse/rfs.go
@@ -49,7 +49,7 @@ var _ pathfs.FileSystem = &reverseFS{}
 // NewFS returns an encrypted FUSE overlay filesystem.
 // In this case (reverse mode) the backing directory is plain-text and
 // reverseFS provides an encrypted view.
-func NewFS(args fusefrontend.Args) pathfs.FileSystem {
+func NewFS(args fusefrontend.Args) *reverseFS {
 	if args.CryptoBackend != cryptocore.BackendAESSIV {
 		panic("reverse mode must use AES-SIV, everything else is insecure")
 	}