Thanks for the patch; it definitely helps identify the problem. I don't think it is a completely correct change, however.
The problem is that it's doing the translation in write_xattrs_to_buffer(), but it is not making the translation in the opposite direction in read_xattrs_to_buffer(). This means if some other program using this library function --- for example, fuse2fs, reads in an existing xattr block with an ACL, it will read it the on- disk format, _not_ translate it to a standard acl format, and then write_xattrs_to_buffer() will take as input an acl encoded in the on- disk format, and then try to convert it from lgetxattr format to on-disk format again, and Much Hilarity will result. I also wonder if write_xattrs_to_buffer() is the right place to make this conversion, or rather ext2fs_{read,write}_ext_attr3(). Then what is stored in the handle structure is the on-disk encoding, and we would do the translation at the higher layer function rather than the low- level read/write functions. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1645232 Title: e2fsprogs - could not preserve ACL permissions : The getxattr() returns with (EINVAL) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/e2fsprogs/+bug/1645232/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs