SKF_NET_OFF
#define BPF_NET_OFF SKF_NET_OFF
if (k >= SKF_NET_OFF) {
ptr = skb_network_header(skb) + k - SKF_NET_OFF;
BPF_STMT(BPF_LD | BPF_B | BPF_ABS, SKF_NET_OFF),
BPF_STMT(BPF_LD | BPF_B | BPF_ABS, SKF_NET_OFF + 1),
BPF_STMT(BPF_LD | BPF_IMM, SKF_NET_OFF - 15),
if (offset >= SKF_NET_OFF)
return offset - SKF_NET_OFF + skb_network_offset(skb);
#define BPF_NET_OFF SKF_NET_OFF
BPF_STMT(BPF_LD + BPF_B + BPF_ABS, SKF_NET_OFF + offset_proto),
BPF_STMT(BPF_LD + BPF_H + BPF_ABS, SKF_NET_OFF + offset_dport),