Obnam should provide xattr and ACL support. --liw
I only need to support extended attributes, since ACLs are implemented in terms of those. Good, this makes things simpler. I can just read the list of xattrs on backup, and set it on restore, and I can treat the list as a string blob. It seems that in Linux, one needs to do a syscall for each key/value pair for a file, but there's a library function that operates on multiple pairs at once, and on Irix they're syscalls. Those functions have a fairly complicated API, though. Might want to keep things simple, at least initially. --liw
This is now implemented for local filesystems. Paramiko does not seem to support them for SFTP, so that will have to not work. --liw