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-rw-r--r--internal/configfile/config_file.go4
-rw-r--r--internal/contentenc/content.go18
-rw-r--r--internal/contentenc/content_test.go12
-rw-r--r--internal/contentenc/offsets_test.go4
-rw-r--r--internal/cryptocore/cryptocore.go8
-rw-r--r--internal/cryptocore/cryptocore_test.go8
-rw-r--r--internal/fusefrontend/args.go2
-rw-r--r--internal/fusefrontend/file.go14
-rw-r--r--internal/fusefrontend/xattr_unit_test.go4
-rw-r--r--internal/speed/speed.go2
-rw-r--r--internal/speed/speed_test.go2
-rw-r--r--internal/stupidgcm/gcm.go2
-rw-r--r--internal/stupidgcm/gcm_test.go2
-rw-r--r--internal/stupidgcm/without_openssl.go2
14 files changed, 31 insertions, 53 deletions
diff --git a/internal/configfile/config_file.go b/internal/configfile/config_file.go
index 06b665b..828f034 100644
--- a/internal/configfile/config_file.go
+++ b/internal/configfile/config_file.go
@@ -298,8 +298,8 @@ func getKeyEncrypter(scryptHash []byte, useHKDF bool) *contentenc.ContentEnc {
if useHKDF {
IVLen = contentenc.DefaultIVBits
}
- cc := cryptocore.New(scryptHash, cryptocore.BackendGoGCM, IVLen, useHKDF, false)
- ce := contentenc.New(cc, 4096, false)
+ cc := cryptocore.New(scryptHash, cryptocore.BackendGoGCM, IVLen, useHKDF)
+ ce := contentenc.New(cc, 4096)
return ce
}
diff --git a/internal/contentenc/content.go b/internal/contentenc/content.go
index 13e0ce0..3005bf5 100644
--- a/internal/contentenc/content.go
+++ b/internal/contentenc/content.go
@@ -13,7 +13,6 @@ import (
"github.com/hanwen/go-fuse/v2/fuse"
"github.com/rfjakob/gocryptfs/v2/internal/cryptocore"
- "github.com/rfjakob/gocryptfs/v2/internal/stupidgcm"
"github.com/rfjakob/gocryptfs/v2/internal/tlog"
)
@@ -41,8 +40,6 @@ type ContentEnc struct {
allZeroBlock []byte
// All-zero block of size IVBitLen/8, for fast compares
allZeroNonce []byte
- // Force decode even if integrity check fails (openSSL only)
- forceDecode bool
// Ciphertext block "sync.Pool" pool. Always returns cipherBS-sized byte
// slices (usually 4128 bytes).
@@ -60,9 +57,8 @@ type ContentEnc struct {
}
// New returns an initialized ContentEnc instance.
-func New(cc *cryptocore.CryptoCore, plainBS uint64, forceDecode bool) *ContentEnc {
- tlog.Debug.Printf("contentenc.New: plainBS=%d, forceDecode=%v",
- plainBS, forceDecode)
+func New(cc *cryptocore.CryptoCore, plainBS uint64) *ContentEnc {
+ tlog.Debug.Printf("contentenc.New: plainBS=%d", plainBS)
if fuse.MAX_KERNEL_WRITE%plainBS != 0 {
log.Panicf("unaligned MAX_KERNEL_WRITE=%d", fuse.MAX_KERNEL_WRITE)
@@ -81,7 +77,6 @@ func New(cc *cryptocore.CryptoCore, plainBS uint64, forceDecode bool) *ContentEn
cipherBS: cipherBS,
allZeroBlock: make([]byte, cipherBS),
allZeroNonce: make([]byte, cc.IVLen),
- forceDecode: forceDecode,
cBlockPool: newBPool(int(cipherBS)),
CReqPool: newBPool(cReqSize),
pBlockPool: newBPool(int(plainBS)),
@@ -111,11 +106,7 @@ func (be *ContentEnc) DecryptBlocks(ciphertext []byte, firstBlockNo uint64, file
var pBlock []byte
pBlock, err = be.DecryptBlock(cBlock, blockNo, fileID)
if err != nil {
- if be.forceDecode && err == stupidgcm.ErrAuth {
- tlog.Warn.Printf("DecryptBlocks: authentication failure in block #%d, overridden by forcedecode", firstBlockNo)
- } else {
- break
- }
+ break
}
pBuf.Write(pBlock)
be.pBlockPool.Put(pBlock)
@@ -183,9 +174,6 @@ func (be *ContentEnc) DecryptBlock(ciphertext []byte, blockNo uint64, fileID []b
if err != nil {
tlog.Debug.Printf("DecryptBlock: %s, len=%d", err.Error(), len(ciphertextOrig))
tlog.Debug.Println(hex.Dump(ciphertextOrig))
- if be.forceDecode && err == stupidgcm.ErrAuth {
- return plaintext, err
- }
return nil, err
}
diff --git a/internal/contentenc/content_test.go b/internal/contentenc/content_test.go
index 9cc8753..4a4b2de 100644
--- a/internal/contentenc/content_test.go
+++ b/internal/contentenc/content_test.go
@@ -23,8 +23,8 @@ func TestSplitRange(t *testing.T) {
testRange{6654, 8945})
key := make([]byte, cryptocore.KeyLen)
- cc := cryptocore.New(key, cryptocore.BackendGoGCM, DefaultIVBits, true, false)
- f := New(cc, DefaultBS, false)
+ cc := cryptocore.New(key, cryptocore.BackendGoGCM, DefaultIVBits, true)
+ f := New(cc, DefaultBS)
for _, r := range ranges {
parts := f.ExplodePlainRange(r.offset, r.length)
@@ -51,8 +51,8 @@ func TestCiphertextRange(t *testing.T) {
testRange{6654, 8945})
key := make([]byte, cryptocore.KeyLen)
- cc := cryptocore.New(key, cryptocore.BackendGoGCM, DefaultIVBits, true, false)
- f := New(cc, DefaultBS, false)
+ cc := cryptocore.New(key, cryptocore.BackendGoGCM, DefaultIVBits, true)
+ f := New(cc, DefaultBS)
for _, r := range ranges {
@@ -74,8 +74,8 @@ func TestCiphertextRange(t *testing.T) {
func TestBlockNo(t *testing.T) {
key := make([]byte, cryptocore.KeyLen)
- cc := cryptocore.New(key, cryptocore.BackendGoGCM, DefaultIVBits, true, false)
- f := New(cc, DefaultBS, false)
+ cc := cryptocore.New(key, cryptocore.BackendGoGCM, DefaultIVBits, true)
+ f := New(cc, DefaultBS)
b := f.CipherOffToBlockNo(788)
if b != 0 {
diff --git a/internal/contentenc/offsets_test.go b/internal/contentenc/offsets_test.go
index 768393c..b35964a 100644
--- a/internal/contentenc/offsets_test.go
+++ b/internal/contentenc/offsets_test.go
@@ -10,8 +10,8 @@ import (
// TestSizeToSize tests CipherSizeToPlainSize and PlainSizeToCipherSize
func TestSizeToSize(t *testing.T) {
key := make([]byte, cryptocore.KeyLen)
- cc := cryptocore.New(key, cryptocore.BackendGoGCM, DefaultIVBits, true, false)
- ce := New(cc, DefaultBS, false)
+ cc := cryptocore.New(key, cryptocore.BackendGoGCM, DefaultIVBits, true)
+ ce := New(cc, DefaultBS)
const rangeMax = 10000
diff --git a/internal/cryptocore/cryptocore.go b/internal/cryptocore/cryptocore.go
index dd7c98b..48386f8 100644
--- a/internal/cryptocore/cryptocore.go
+++ b/internal/cryptocore/cryptocore.go
@@ -73,9 +73,9 @@ type CryptoCore struct {
//
// Note: "key" is either the scrypt hash of the password (when decrypting
// a config file) or the masterkey (when finally mounting the filesystem).
-func New(key []byte, aeadType AEADTypeEnum, IVBitLen int, useHKDF bool, forceDecode bool) *CryptoCore {
- tlog.Debug.Printf("cryptocore.New: key=%d bytes, aeadType=%v, IVBitLen=%d, useHKDF=%v, forceDecode=%v",
- len(key), aeadType, IVBitLen, useHKDF, forceDecode)
+func New(key []byte, aeadType AEADTypeEnum, IVBitLen int, useHKDF bool) *CryptoCore {
+ tlog.Debug.Printf("cryptocore.New: key=%d bytes, aeadType=%v, IVBitLen=%d, useHKDF=%v",
+ len(key), aeadType, IVBitLen, useHKDF)
if len(key) != KeyLen {
log.Panicf("Unsupported key length of %d bytes", len(key))
@@ -120,7 +120,7 @@ func New(key []byte, aeadType AEADTypeEnum, IVBitLen int, useHKDF bool, forceDec
if IVBitLen != 128 {
log.Panicf("stupidgcm only supports 128-bit IVs, you wanted %d", IVBitLen)
}
- aeadCipher = stupidgcm.NewAES256GCM(gcmKey, forceDecode)
+ aeadCipher = stupidgcm.NewAES256GCM(gcmKey)
case BackendGoGCM:
goGcmBlockCipher, err := aes.NewCipher(gcmKey)
if err != nil {
diff --git a/internal/cryptocore/cryptocore_test.go b/internal/cryptocore/cryptocore_test.go
index 319a900..d37e941 100644
--- a/internal/cryptocore/cryptocore_test.go
+++ b/internal/cryptocore/cryptocore_test.go
@@ -10,18 +10,18 @@ import (
func TestCryptoCoreNew(t *testing.T) {
key := make([]byte, 32)
for _, useHKDF := range []bool{true, false} {
- c := New(key, BackendGoGCM, 96, useHKDF, false)
+ c := New(key, BackendGoGCM, 96, useHKDF)
if c.IVLen != 12 {
t.Fail()
}
- c = New(key, BackendGoGCM, 128, useHKDF, false)
+ c = New(key, BackendGoGCM, 128, useHKDF)
if c.IVLen != 16 {
t.Fail()
}
if stupidgcm.BuiltWithoutOpenssl {
continue
}
- c = New(key, BackendOpenSSL, 128, useHKDF, false)
+ c = New(key, BackendOpenSSL, 128, useHKDF)
if c.IVLen != 16 {
t.Fail()
}
@@ -37,5 +37,5 @@ func TestNewPanic(t *testing.T) {
}()
key := make([]byte, 16)
- New(key, BackendOpenSSL, 128, true, false)
+ New(key, BackendOpenSSL, 128, true)
}
diff --git a/internal/fusefrontend/args.go b/internal/fusefrontend/args.go
index 4aedf2e..64a5923 100644
--- a/internal/fusefrontend/args.go
+++ b/internal/fusefrontend/args.go
@@ -26,8 +26,6 @@ type Args struct {
ConfigCustom bool
// NoPrealloc disables automatic preallocation before writing
NoPrealloc bool
- // Force decode even if integrity check fails (openSSL only)
- ForceDecode bool
// Exclude is a list of paths to make inaccessible, starting match at
// the filesystem root
Exclude []string
diff --git a/internal/fusefrontend/file.go b/internal/fusefrontend/file.go
index 661c2b8..3ce1b1e 100644
--- a/internal/fusefrontend/file.go
+++ b/internal/fusefrontend/file.go
@@ -20,7 +20,6 @@ import (
"github.com/rfjakob/gocryptfs/v2/internal/contentenc"
"github.com/rfjakob/gocryptfs/v2/internal/inomap"
"github.com/rfjakob/gocryptfs/v2/internal/openfiletable"
- "github.com/rfjakob/gocryptfs/v2/internal/stupidgcm"
"github.com/rfjakob/gocryptfs/v2/internal/syscallcompat"
"github.com/rfjakob/gocryptfs/v2/internal/tlog"
)
@@ -208,16 +207,9 @@ func (f *File) doRead(dst []byte, off uint64, length uint64) ([]byte, syscall.Er
plaintext, err := f.contentEnc.DecryptBlocks(ciphertext, firstBlockNo, fileID)
f.rootNode.contentEnc.CReqPool.Put(ciphertext)
if err != nil {
- if f.rootNode.args.ForceDecode && err == stupidgcm.ErrAuth {
- // We do not have the information which block was corrupt here anymore,
- // but DecryptBlocks() has already logged it anyway.
- tlog.Warn.Printf("doRead %d: off=%d len=%d: returning corrupt data due to forcedecode",
- f.qIno.Ino, off, length)
- } else {
- curruptBlockNo := firstBlockNo + f.contentEnc.PlainOffToBlockNo(uint64(len(plaintext)))
- tlog.Warn.Printf("doRead %d: corrupt block #%d: %v", f.qIno.Ino, curruptBlockNo, err)
- return nil, syscall.EIO
- }
+ curruptBlockNo := firstBlockNo + f.contentEnc.PlainOffToBlockNo(uint64(len(plaintext)))
+ tlog.Warn.Printf("doRead %d: corrupt block #%d: %v", f.qIno.Ino, curruptBlockNo, err)
+ return nil, syscall.EIO
}
// Crop down to the relevant part
diff --git a/internal/fusefrontend/xattr_unit_test.go b/internal/fusefrontend/xattr_unit_test.go
index 7449d24..5bffd5e 100644
--- a/internal/fusefrontend/xattr_unit_test.go
+++ b/internal/fusefrontend/xattr_unit_test.go
@@ -17,8 +17,8 @@ import (
func newTestFS(args Args) *RootNode {
// Init crypto backend
key := make([]byte, cryptocore.KeyLen)
- cCore := cryptocore.New(key, cryptocore.BackendGoGCM, contentenc.DefaultIVBits, true, false)
- cEnc := contentenc.New(cCore, contentenc.DefaultBS, false)
+ cCore := cryptocore.New(key, cryptocore.BackendGoGCM, contentenc.DefaultIVBits, true)
+ cEnc := contentenc.New(cCore, contentenc.DefaultBS)
n := nametransform.New(cCore.EMECipher, true, true, nil, false)
rn := NewRootNode(args, cEnc, n)
oneSec := time.Second
diff --git a/internal/speed/speed.go b/internal/speed/speed.go
index f7cb5d3..9958697 100644
--- a/internal/speed/speed.go
+++ b/internal/speed/speed.go
@@ -114,7 +114,7 @@ func bStupidGCM(b *testing.B) {
if stupidgcm.BuiltWithoutOpenssl {
b.Skip("openssl has been disabled at compile-time")
}
- bEncrypt(b, stupidgcm.NewAES256GCM(randBytes(32), false))
+ bEncrypt(b, stupidgcm.NewAES256GCM(randBytes(32)))
}
// bGoGCM benchmarks Go stdlib GCM
diff --git a/internal/speed/speed_test.go b/internal/speed/speed_test.go
index 11c68d0..5f3001b 100644
--- a/internal/speed/speed_test.go
+++ b/internal/speed/speed_test.go
@@ -31,7 +31,7 @@ func BenchmarkStupidGCMDecrypt(b *testing.B) {
if stupidgcm.BuiltWithoutOpenssl {
b.Skip("openssl has been disabled at compile-time")
}
- bDecrypt(b, stupidgcm.NewAES256GCM(randBytes(32), false))
+ bDecrypt(b, stupidgcm.NewAES256GCM(randBytes(32)))
}
func BenchmarkGoGCM(b *testing.B) {
diff --git a/internal/stupidgcm/gcm.go b/internal/stupidgcm/gcm.go
index c38dd5f..00819dd 100644
--- a/internal/stupidgcm/gcm.go
+++ b/internal/stupidgcm/gcm.go
@@ -26,7 +26,7 @@ type stupidGCM struct {
// NewAES256GCM returns a new AES-256-GCM cipher that satisfies the cipher.AEAD interface.
//
// Only 32-bytes keys and 16-byte IVs are supported.
-func NewAES256GCM(keyIn []byte, forceDecode bool) cipher.AEAD {
+func NewAES256GCM(keyIn []byte) cipher.AEAD {
if len(keyIn) != keyLen {
log.Panicf("Only %d-byte keys are supported", keyLen)
}
diff --git a/internal/stupidgcm/gcm_test.go b/internal/stupidgcm/gcm_test.go
index b587e58..73668fa 100644
--- a/internal/stupidgcm/gcm_test.go
+++ b/internal/stupidgcm/gcm_test.go
@@ -13,7 +13,7 @@ import (
func TestStupidGCM(t *testing.T) {
key := randBytes(32)
- sGCM := NewAES256GCM(key, false)
+ sGCM := NewAES256GCM(key)
gAES, err := aes.NewCipher(key)
if err != nil {
diff --git a/internal/stupidgcm/without_openssl.go b/internal/stupidgcm/without_openssl.go
index 93efcb4..42604de 100644
--- a/internal/stupidgcm/without_openssl.go
+++ b/internal/stupidgcm/without_openssl.go
@@ -21,7 +21,7 @@ func errExit() {
os.Exit(exitcodes.OpenSSL)
}
-func NewAES256GCM(_ []byte, _ bool) cipher.AEAD {
+func NewAES256GCM(_ []byte) cipher.AEAD {
errExit()
return nil
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-10 09:49:01 +0000