Re: [RFC PATCH net-next 15/15] bpf: Sample bpf program to set sndcwnd clamp

[David Miller]

From: Lawrence Brakmo <bra...@fb.com>
Date: Tue, 13 Jun 2017 11:00:04 -0700

> +SEC("sockops")
> +int bpf_clamp(struct __sk_buff *skb)
> +{
> +     struct bpf_socket_ops *skops = (struct bpf_socket_ops *) skb;
> +     char fmt1[] = "BPF command: %d\n";
> +     char fmt2[] = "  Returning %d\n";
> +     int op;
> +     int rv = 0;
> +     int bufsize = 150000;
> +     int clamp = 100;
> +     int to_init = 10;
> +
> +     // For testing purposes, only execute rest of BPF program
> +     // if neither port numberis 55601
> +     if (skops->remote_port != 55601 && skops->local_port != 55601)
> +             return -1;

Local variable ordering and C++ comments.