libgocryptfs: update to gocryptfs v2.2.1

README.md

@@ -3,4 +3,4 @@ libgocryptfs is a re-desing of the original [gocryptfs](https://github.com/rfjak
 - Reduce attack surface by restricting volumes access to only one process rather than one user
 
 ## Warning !
-The only goal of this library is to be integrated in [DroidFS](https://forge.chapril.org/hardcoresushi/DroidFS). It's not actually ready for other usages. libgocryptfs doesn't implement all features provided by gocryptfs like symbolic links creation, thread-safety, reverse volume creation... Use it at your own risk !
+The only goal of this library is to be integrated in [DroidFS](https://forge.chapril.org/hardcoresushi/DroidFS). It's not actually ready for other usages. libgocryptfs doesn't implement all features provided by gocryptfs like symbolic links creation, thread-safety, reverse volume creation... Use it at your own risk !

internal/cryptocore/cryptocore.go

@@ -27,28 +27,36 @@ const (
 
 // AEADTypeEnum indicates the type of AEAD backend in use.
 type AEADTypeEnum struct {
-	Name      string
+	// Algo is the encryption algorithm. Example: "AES-GCM-256"
+	Algo string
+	// Lib is the library where Algo is implemented. Either "Go" or "OpenSSL".
+	Lib       string
 	NonceSize int
 }
 
+// String returns something like "AES-GCM-256-OpenSSL"
+func (a AEADTypeEnum) String() string {
+	return a.Algo + "-" + a.Lib
+}
+
 // BackendOpenSSL specifies the OpenSSL AES-256-GCM backend.
 // "AES-GCM-256-OpenSSL" in gocryptfs -speed.
-var BackendOpenSSL AEADTypeEnum = AEADTypeEnum{"AES-GCM-256-OpenSSL", 16}
+var BackendOpenSSL = AEADTypeEnum{"AES-GCM-256", "OpenSSL", 16}
 
 // BackendGoGCM specifies the Go based AES-256-GCM backend.
 // "AES-GCM-256-Go" in gocryptfs -speed.
-var BackendGoGCM AEADTypeEnum = AEADTypeEnum{"AES-GCM-256-Go", 16}
+var BackendGoGCM = AEADTypeEnum{"AES-GCM-256", "Go", 16}
 
 // BackendAESSIV specifies an AESSIV backend.
 // "AES-SIV-512-Go" in gocryptfs -speed.
-var BackendAESSIV AEADTypeEnum = AEADTypeEnum{"AES-SIV-512-Go", siv_aead.NonceSize}
+var BackendAESSIV = AEADTypeEnum{"AES-SIV-512", "Go", siv_aead.NonceSize}
 
 // BackendXChaCha20Poly1305 specifies XChaCha20-Poly1305-Go.
 // "XChaCha20-Poly1305-Go" in gocryptfs -speed.
-var BackendXChaCha20Poly1305 AEADTypeEnum = AEADTypeEnum{"XChaCha20-Poly1305-Go", chacha20poly1305.NonceSizeX}
+var BackendXChaCha20Poly1305 = AEADTypeEnum{"XChaCha20-Poly1305", "Go", chacha20poly1305.NonceSizeX}
 
 // BackendXChaCha20Poly1305OpenSSL specifies XChaCha20-Poly1305-OpenSSL.
-var BackendXChaCha20Poly1305OpenSSL AEADTypeEnum = AEADTypeEnum{"XChaCha20-Poly1305-OpenSSL", chacha20poly1305.NonceSizeX}
+var BackendXChaCha20Poly1305OpenSSL = AEADTypeEnum{"XChaCha20-Poly1305", "OpenSSL", chacha20poly1305.NonceSizeX}
 
 // CryptoCore is the low level crypto implementation.
 type CryptoCore struct {
@@ -172,7 +180,7 @@ func New(key []byte, aeadType AEADTypeEnum, IVBitLen int, useHKDF bool) *CryptoC
 			log.Panic(err)
 		}
 	} else {
-		log.Panicf("unknown cipher backend %q", aeadType.Name)
+		log.Panicf("unknown cipher backend %q", aeadType)
 	}
 
 	if aeadCipher.NonceSize()*8 != IVBitLen {