Hi, we want to try out hardware-offloading posted [1] but we cannot apply offloading flag in nftables ruleset [2] we found your patch for supporting flag in "normal chain" [3] but not for flowtable as my nft in debian buster is only 0.9.0 i tried to compile newest version... i tried natively and crosscompile, both ended in LD errors on building nft CCLD nft /usr/lib/gcc-cross/arm-linux-gnueabihf/9/../../../../arm-linux-gnueabihf/bin/ld: ./.libs/libnftables.so: undefined reference to `mnl_attr_nest_start' /usr/lib/gcc-cross/arm-linux-gnueabihf/9/../../../../arm-linux-gnueabihf/bin/ld: ./.libs/libnftables.so: undefined /usr/lib/gcc-cross/arm-linux-gnueabihf/9/../../../../arm-linux-gnueabihf/bin/ld: ./.libs/libnftables.so: undefined reference to `mnl_socket_close' /usr/lib/gcc-cross/arm-linux-gnueabihf/9/../../../../arm-linux-gnueabihf/bin/ld: ./.libs/libnftables.so: undefined reference to `mnl_attr_type_valid' .... these are my steps on crosscompile: git clone https://git.netfilter.org/libmnl git clone git://git.netfilter.org/libnftnl git clone git://git.netfilter.org/nftables #build libmnl for armhf cd libmnl sh autogen.sh mkdir install sh configure --host=arm-linux-gnueabihf --prefix=$(pwd)/install make make install #build libnftnl cd ../libnftnl/ sh autogen.sh mkdir install ./configure --host=arm-linux-gnueabihf --prefix=$(pwd)/install LIBMNL_LIBS=../libmnl/install/lib LIBMNL_CFLAGS=../libmnl/include/ make make install #build nft cd ../nftables/ sh autogen.sh BASE="$(pwd)/../"; sh configure --host=arm-linux-gnueabihf --prefix=$(pwd)/install PKG_CONFIG_PATH="$BASE/libnftnl/install/lib/pkgconfig:$BASE/libmnl/install/lib/pkgconfig" LIBMNL_LIBS=$BASE/libmnl/install/lib LIBMNL_CFLAGS=$BASE/libmnl/include/ --with-mini-gmp --without-cli LDFLAGS="-L$BASE/libmnl/install/lib -L$BASE/libnftnl/install/lib" --enable-static make tried to pass lib-dirs with LDFLAGS/LD_LIBRARY_PATH and --libdir but no luck is nft usable without libreadline (--without-cli)? regards Frank [1] https://patchwork.ozlabs.org/project/netfilter-devel/list/?series=233310&archive=both&state=* [2] https://lwn.net/Articles/804384/ [3] http://git.netfilter.org/nftables/commit/?id=d42bd56cff1a22301703d2b9d6d6fc937ea7cfbd
