ss-plus for OpenWrt is an improved editon from shadowsocks-libev plus, which enhanced editon extended from shadowsocks-libev. It supports transparent proxy based on extensible custom list and updatable gfwlist, and fast DNS response.
# Get source (At OpenWRT build root)
pushd package
git clone https://github.com/angusding/ss-plus.git
popd
# Enable ss-plus ("Network" category and "Web Servers/Proxies" submenu)
make menuconfig
# Build the package
make package/ss-plus/compile V=s