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authorJakob Unterwurzacher2016-11-28 23:15:24 +0100
committerJakob Unterwurzacher2016-11-28 23:15:24 +0100
commit55df8acac30c382390ca59474f1732b0f1b230b8 (patch)
tree2be0f90634de12675b7a82355b581288355c0537 /internal
parente3c5e3f1c8db31e62bbb781a238da4cf76ed1ffc (diff)
fusefrontend: preserve owner for symlinks
https://github.com/rfjakob/gocryptfs/issues/64
Diffstat (limited to 'internal')
-rw-r--r--internal/fusefrontend/fs.go24
1 files changed, 15 insertions, 9 deletions
diff --git a/internal/fusefrontend/fs.go b/internal/fusefrontend/fs.go
index 8e12997..6165d86 100644
--- a/internal/fusefrontend/fs.go
+++ b/internal/fusefrontend/fs.go
@@ -351,7 +351,6 @@ func (fs *FS) Symlink(target string, linkName string, context *fuse.Context) (co
// Symlinks are encrypted like file contents (GCM) and base64-encoded
cBinTarget := fs.contentEnc.EncryptBlock([]byte(target), 0, nil)
cTarget := base64.URLEncoding.EncodeToString(cBinTarget)
-
// Handle long file name
cName := filepath.Base(cPath)
if nametransform.IsLongContent(cName) {
@@ -361,25 +360,32 @@ func (fs *FS) Symlink(target string, linkName string, context *fuse.Context) (co
return fuse.ToStatus(err)
}
defer dirfd.Close()
-
- // Create ".name"
+ // Create ".name" file
err = fs.nameTransform.WriteLongName(dirfd, cName, linkName)
if err != nil {
return fuse.ToStatus(err)
}
-
- // Create symlink
+ // Create "gocryptfs.longfile." symlink
// TODO use syscall.Symlinkat once it is available in Go
err = syscall.Symlink(cTarget, cPath)
if err != nil {
nametransform.DeleteLongName(dirfd, cName)
}
-
+ } else {
+ // Create symlink
+ err = os.Symlink(cTarget, cPath)
+ }
+ if err != nil {
return fuse.ToStatus(err)
}
-
- err = os.Symlink(cTarget, cPath)
- return fuse.ToStatus(err)
+ // Set owner
+ if fs.args.PreserveOwner {
+ err = os.Lchown(cPath, int(context.Owner.Uid), int(context.Owner.Gid))
+ if err != nil {
+ tlog.Warn.Printf("Mknod: Lchown failed: %v", err)
+ }
+ }
+ return fuse.OK
}
// Rename implements pathfs.Filesystem.