1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */ 3 4 #include <linux/types.h> 5 #include <linux/bpf.h> 6 #include <linux/pkt_cls.h> 7 #include <bpf/bpf_helpers.h> 8 9 struct bpf_fib_lookup fib_params = {}; 10 int fib_lookup_ret = 0; 11 int lookup_flags = 0; 12 13 SEC("tc") 14 int fib_lookup(struct __sk_buff *skb) 15 { 16 fib_lookup_ret = bpf_fib_lookup(skb, &fib_params, sizeof(fib_params), 17 lookup_flags); 18 19 return TC_ACT_SHOT; 20 } 21 22 char _license[] SEC("license") = "GPL"; 23