TOS_OFF 25 samples/bpf/tcbpf1_kern.c __u8 old_tos = load_byte(skb, TOS_OFF); TOS_OFF 28 samples/bpf/tcbpf1_kern.c bpf_skb_store_bytes(skb, TOS_OFF, &new_tos, sizeof(new_tos), 0);