1// SPDX-License-Identifier: GPL-2.0 2 3#include <linux/bpf.h> 4#include <bpf/bpf_helpers.h> 5#include <linux/if_ether.h> 6#include <linux/ip.h> 7 8/* Dummy prog to test TC-BPF API */ 9 10SEC("tc") 11int cls(struct __sk_buff *skb) 12{ 13 return 0; 14} 15 16/* Prog to verify tc-bpf without cap_sys_admin and cap_perfmon */ 17SEC("tcx/ingress") 18int pkt_ptr(struct __sk_buff *skb) 19{ 20 struct iphdr *iph = (void *)(long)skb->data + sizeof(struct ethhdr); 21 22 if ((long)(iph + 1) > (long)skb->data_end) 23 return 1; 24 return 0; 25} 26