/usr/ is in libnftnl-dev 1.0.7-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/libnftnl-dev/examples/
/usr/include/
/usr/include/libnftnl/
/usr/include/libnftnl/batch.h
/usr/include/libnftnl/chain.h
/usr/include/libnftnl/common.h
/usr/include/libnftnl/expr.h
/usr/include/libnftnl/gen.h
/usr/include/libnftnl/object.h
/usr/include/libnftnl/rule.h
/usr/include/libnftnl/ruleset.h
/usr/include/libnftnl/set.h
/usr/include/libnftnl/table.h
/usr/include/libnftnl/trace.h
/usr/include/libnftnl/udata.h
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/libnftnl.pc
/usr/share/
/usr/share/doc/
/usr/share/doc/libnftnl-dev/
/usr/share/doc/libnftnl-dev/changelog.Debian.gz
/usr/share/doc/libnftnl-dev/copyright
/usr/share/doc/libnftnl-dev/examples/README.examples
/usr/share/doc/libnftnl-dev/examples/example.json
/usr/share/doc/libnftnl-dev/examples/example.xml
/usr/share/doc/libnftnl-dev/examples/nft-chain-add.c
/usr/share/doc/libnftnl-dev/examples/nft-chain-del.c
/usr/share/doc/libnftnl-dev/examples/nft-chain-get.c
/usr/share/doc/libnftnl-dev/examples/nft-chain-parse-add.c
/usr/share/doc/libnftnl-dev/examples/nft-compat-get.c
/usr/share/doc/libnftnl-dev/examples/nft-events.c.gz
/usr/share/doc/libnftnl-dev/examples/nft-map-add.c
/usr/share/doc/libnftnl-dev/examples/nft-obj-add.c
/usr/share/doc/libnftnl-dev/examples/nft-obj-del.c
/usr/share/doc/libnftnl-dev/examples/nft-obj-get.c
/usr/share/doc/libnftnl-dev/examples/nft-rule-add.c.gz
/usr/share/doc/libnftnl-dev/examples/nft-rule-del.c
/usr/share/doc/libnftnl-dev/examples/nft-rule-get.c
/usr/share/doc/libnftnl-dev/examples/nft-rule-parse-add.c
/usr/share/doc/libnftnl-dev/examples/nft-ruleset-get.c.gz
/usr/share/doc/libnftnl-dev/examples/nft-ruleset-parse-file.c.gz
/usr/share/doc/libnftnl-dev/examples/nft-set-add.c
/usr/share/doc/libnftnl-dev/examples/nft-set-del.c
/usr/share/doc/libnftnl-dev/examples/nft-set-elem-add.c
/usr/share/doc/libnftnl-dev/examples/nft-set-elem-del.c
/usr/share/doc/libnftnl-dev/examples/nft-set-elem-get.c
/usr/share/doc/libnftnl-dev/examples/nft-set-get.c
/usr/share/doc/libnftnl-dev/examples/nft-set-parse-add.c
/usr/share/doc/libnftnl-dev/examples/nft-table-add.c
/usr/share/doc/libnftnl-dev/examples/nft-table-del.c
/usr/share/doc/libnftnl-dev/examples/nft-table-get.c
/usr/share/doc/libnftnl-dev/examples/nft-table-parse-add.c
/usr/share/doc/libnftnl-dev/examples/nft-table-upd.c
/usr/lib/x86_64-linux-gnu/libnftnl.so