1 // SPDX-License-Identifier: GPL-2.0 2 // Copyright (c) 2020 Facebook 3 #include <linux/bpf.h> 4 #include <bpf/bpf_helpers.h> 5 6 int calls = 0; 7 int alt_calls = 0; 8 9 SEC("cgroup_skb/egress") 10 int egress(struct __sk_buff *skb) 11 { 12 __sync_fetch_and_add(&calls, 1); 13 return 1; 14 } 15 16 SEC("cgroup_skb/egress") 17 int egress_alt(struct __sk_buff *skb) 18 { 19 __sync_fetch_and_add(&alt_calls, 1); 20 return 1; 21 } 22 23 char _license[] SEC("license") = "GPL"; 24 25