[libvirt-users] How is calculate the lock with lockd_manager

Hello I use lock_manager with libvirt 1.3 and I would like to know how is exactly calculate the hash SHA256. I would create a table to retreive the name with the hash in case of crash to release manualy the lock. I do an  sha256 hash from /var/lib/libvirt/images/lock/MyVM.img but I don't get the same hash code form virtlockd ? Any Ideas ? Best regards ----- PS:  sorry for my previous mail it was in a wrong thread