diff options
Diffstat (limited to 'internal/fusefrontend/xattr_darwin.go')
-rw-r--r-- | internal/fusefrontend/xattr_darwin.go | 78 |
1 files changed, 3 insertions, 75 deletions
diff --git a/internal/fusefrontend/xattr_darwin.go b/internal/fusefrontend/xattr_darwin.go index c756486..8760480 100644 --- a/internal/fusefrontend/xattr_darwin.go +++ b/internal/fusefrontend/xattr_darwin.go @@ -3,86 +3,14 @@ // Package fusefrontend interfaces directly with the go-fuse library. package fusefrontend -import ( - "path/filepath" - - "github.com/pkg/xattr" - - "github.com/hanwen/go-fuse/fuse" - - "github.com/rfjakob/gocryptfs/internal/tlog" -) - func disallowedXAttrName(attr string) bool { return false } // On Darwin it is needed to unset XATTR_NOSECURITY 0x0008 func filterXattrSetFlags(flags int) int { - return flags &^ xattr.XATTR_NOSECURITY -} - -// This function is NOT symlink-safe because Darwin lacks -// both fgetxattr() and /proc/self/fd. -func (fs *FS) getXattr(relPath string, cAttr string, context *fuse.Context) ([]byte, fuse.Status) { - cPath, err := fs.getBackingPath(relPath) - if err != nil { - return nil, fuse.ToStatus(err) - } - cData, err := xattr.LGet(cPath, cAttr) - if err != nil { - return nil, unpackXattrErr(err) - } - return cData, fuse.OK -} - -// This function is NOT symlink-safe because Darwin lacks -// both fsetxattr() and /proc/self/fd. -func (fs *FS) setXattr(relPath string, cAttr string, cData []byte, flags int, context *fuse.Context) fuse.Status { - cPath, err := fs.getBackingPath(relPath) - if err != nil { - return fuse.ToStatus(err) - } - err = xattr.LSetWithFlags(cPath, cAttr, cData, flags) - return unpackXattrErr(err) -} - -// This function is NOT symlink-safe because Darwin lacks -// both fremovexattr() and /proc/self/fd. -func (fs *FS) removeXAttr(relPath string, cAttr string, context *fuse.Context) fuse.Status { - cPath, err := fs.getBackingPath(relPath) - if err != nil { - return fuse.ToStatus(err) - } - err = xattr.LRemove(cPath, cAttr) - return unpackXattrErr(err) -} - -// This function is NOT symlink-safe because Darwin lacks -// both flistxattr() and /proc/self/fd. -func (fs *FS) listXAttr(relPath string, context *fuse.Context) ([]string, fuse.Status) { - cPath, err := fs.getBackingPath(relPath) - if err != nil { - return nil, fuse.ToStatus(err) - } - cNames, err := xattr.LList(cPath) - if err != nil { - return nil, unpackXattrErr(err) - } - return cNames, fuse.OK -} + // See https://opensource.apple.com/source/xnu/xnu-1504.15.3/bsd/sys/xattr.h.auto.html + const XATTR_NOSECURITY = 0x0008 -// getBackingPath - get the absolute encrypted path of the backing file -// from the relative plaintext path "relPath" -// -// This function is NOT symlink-safe. Darwin needs it because it lacks -// fgetxattr(2) and friends. -func (fs *FS) getBackingPath(relPath string) (string, error) { - cPath, err := fs.encryptPath(relPath) - if err != nil { - return "", err - } - cAbsPath := filepath.Join(fs.args.Cipherdir, cPath) - tlog.Debug.Printf("getBackingPath: %s + %s -> %s", fs.args.Cipherdir, relPath, cAbsPath) - return cAbsPath, nil + return flags &^ XATTR_NOSECURITY } |