hardcoresushi/libgocryptfs
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Adapt to the new API

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This commit is contained in:
Matéo Duparc 2022-06-23 12:04:36 +02:00
parent 9e98192442
commit 7afeb9f3a4
Signed by: hardcoresushi
GPG Key ID: AFE384344A45E13A
4 changed files with 16 additions and 11 deletions
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10
common_ops.go
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@ -10,27 +10,27 @@ import (
) )
//export gcf_get_attrs //export gcf_get_attrs
func gcf_get_attrs(sessionID int, relPath string) (uint64, int64, bool) { func gcf_get_attrs(sessionID int, relPath string) (uint32, uint64, uint64, bool) {
value, ok := OpenedVolumes.Load(sessionID) value, ok := OpenedVolumes.Load(sessionID)
if !ok { if !ok {
return 0, 0, false return 0, 0, 0, false
} }
volume := value.(*Volume) volume := value.(*Volume)
dirfd, cName, err := volume.prepareAtSyscall(relPath) dirfd, cName, err := volume.prepareAtSyscall(relPath)
if err != nil { if err != nil {
return 0, 0, false return 0, 0, 0, false
} }
defer syscall.Close(dirfd) defer syscall.Close(dirfd)
st, err := syscallcompat.Fstatat2(dirfd, cName, unix.AT_SYMLINK_NOFOLLOW) st, err := syscallcompat.Fstatat2(dirfd, cName, unix.AT_SYMLINK_NOFOLLOW)
if err != nil { if err != nil {
return 0, 0, false return 0, 0, 0, false
} }
// Translate ciphertext size to plaintext size // Translate ciphertext size to plaintext size
size := volume.translateSize(dirfd, cName, st) size := volume.translateSize(dirfd, cName, st)
return size, int64(st.Mtim.Sec), true return st.Mode, size, uint64(st.Mtim.Sec), true
} }
// libgocryptfs: using Renameat instead of Renameat2 to support older kernels // libgocryptfs: using Renameat instead of Renameat2 to support older kernels

2
directory.go
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@ -77,7 +77,7 @@ func gcf_list_dir(sessionID int, dirName string) (*C.char, *C.int, C.int) {
// Filter and decrypt filenames // Filter and decrypt filenames
for i := range cipherEntries { for i := range cipherEntries {
cName := cipherEntries[i].Name cName := cipherEntries[i].Name
if dirName == "" && cName == configfile.ConfDefaultName { if dirName == "/" && cName == configfile.ConfDefaultName {
// silently ignore "gocryptfs.conf" in the top level dir // silently ignore "gocryptfs.conf" in the top level dir
continue continue
} }

9
file.go
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@ -328,7 +328,7 @@ func (volume *Volume) truncate(handleID int, newSize uint64) bool {
} }
// We need the old file size to determine if we are growing or shrinking // We need the old file size to determine if we are growing or shrinking
// the file // the file
oldSize, _, success := gcf_get_attrs(volume.volumeID, f.path) _, oldSize, _, success := gcf_get_attrs(volume.volumeID, f.path)
if !success { if !success {
return false return false
} }
@ -426,13 +426,18 @@ func gcf_open_write_mode(sessionID int, path string, mode uint32) int {
} }
//export gcf_truncate //export gcf_truncate
func gcf_truncate(sessionID int, handleID int, offset uint64) bool { func gcf_truncate(sessionID int, path string, offset uint64) bool {
value, ok := OpenedVolumes.Load(sessionID) value, ok := OpenedVolumes.Load(sessionID)
if !ok { if !ok {
return false return false
} }
volume := value.(*Volume) volume := value.(*Volume)
for handleID, file := range volume.fileHandles {
if file.path == path {
return volume.truncate(handleID, offset) return volume.truncate(handleID, offset)
}
}
return false
} }
//export gcf_read_file //export gcf_read_file

4
helpers.go
View File

@ -33,7 +33,7 @@ func (volume *Volume) isFiltered(path string) bool {
} }
func (volume *Volume) prepareAtSyscall(path string) (dirfd int, cName string, err error) { func (volume *Volume) prepareAtSyscall(path string) (dirfd int, cName string, err error) {
if path == "" { if path == "/" {
return volume.prepareAtSyscallMyself(path) return volume.prepareAtSyscallMyself(path)
} }
@ -111,7 +111,7 @@ func (volume *Volume) prepareAtSyscallMyself(path string) (dirfd int, cName stri
dirfd = -1 dirfd = -1
// Handle root node // Handle root node
if path == "" { if path == "/" {
var err error var err error
// Open cipherdir (following symlinks) // Open cipherdir (following symlinks)
dirfd, err = syscallcompat.Open(volume.rootCipherDir, syscall.O_DIRECTORY|syscallcompat.O_PATH, 0) dirfd, err = syscallcompat.Open(volume.rootCipherDir, syscall.O_DIRECTORY|syscallcompat.O_PATH, 0)