cgroup_traffic 0.1.2

A simple bpf program to monitor process traffic by cgroup_skb/egress and cgroup_skb/ingress
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cgroup_traffic is a library to monitor the network traffic of a cgroup. By passing a pid to this library, it will attach to the cgroup of the pid and monitor the network traffic of the cgroup.

It use ebpf program BPF_PROG_TYPE_CGROUP_SKB to monitor the network traffic. Now it's only tested for Cgroup V2. It doesn't support Cgroup V1, because it cannot parse the path of cgroup V1.

Examples

pub fn main() -> Result<(), Box<dyn std::error::Error>> {
    let cgroup_transmit_counter = cgroup_traffic::init_cgroup_skb_monitor(cgroup_traffic::SELF)?;
    loop {
        println!(
            "current bytes: {} {}",
            cgroup_transmit_counter.get_egress(),
            cgroup_transmit_counter.get_ingress()
        );
        std::thread::sleep(std::time::Duration::from_secs(1));
    }
}

Refer to cgroup_traffic::init_cgroup_skb_monitor if you want to attach to a specific cgroup path.