UCI is a small utility written in C (a shell script-wrapper is available as well)
and is intended to centralize the whole configuration of a device running OpenWrt.
UCI is the successor of the NVRAM based configuration found in the historical
OpenWrt branch White Russian and a wrapper for the standard configuration files
programs bring with them, like e.g. /etc/network/interfaces, /etc/exports,
/etc/dnsmasq.conf, /etc/samba/samba.conf etc.