linux/samples/bpf/run_cookie_uid_helper_example.sh

#!/bin/bash
local_dir="$(pwd)"
root_dir=$local_dir/../..
mnt_dir=$(mktemp -d --tmp)

on_exit() {
	iptables -D INPUT -m bpf --object-pinned ${mnt_dir}/bpf_prog -j ACCEPT
	umount ${mnt_dir}
	rm -r ${mnt_dir}
}

trap on_exit EXIT
mount -t bpf bpf ${mnt_dir}
./per_socket_stats_example ${mnt_dir}/bpf_prog
A Sample of using socket cookie and uid for traffic monitoring Add a sample program to demostrate the possible usage of get_socket_cookie and get_socket_uid helper function. The program will store bytes and packets counting of in/out traffic monitored by iptables and store the stats in a bpf map in per socket base. The owner uid of the socket will be stored as part of the data entry. A shell script for running the program is also included. Acked-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Chenbo Feng <fengc@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2017-03-23 00:27:36 +00:00			`#!/bin/bash`
			`local_dir="$(pwd)"`
			`root_dir=$local_dir/../..`
			`mnt_dir=$(mktemp -d --tmp)`

			`on_exit() {`
			`iptables -D INPUT -m bpf --object-pinned ${mnt_dir}/bpf_prog -j ACCEPT`
			`umount ${mnt_dir}`
			`rm -r ${mnt_dir}`
			`}`

			`trap on_exit EXIT`
			`mount -t bpf bpf ${mnt_dir}`
			`./per_socket_stats_example ${mnt_dir}/bpf_prog`