17 #define IP_MF		0x2000
18 #define IP_OFFSET	0x1FFF
109 	__u32 nhoff = skb->cb[0];  in parse_ip_proto()
135 		skb->cb[0] = nhoff;  in parse_ip_proto()
164 		return 0;  in bpf_func_ip()
166 	nhoff = skb->cb[0];  in bpf_func_ip()
169 		return 0;  in bpf_func_ip()
178 	verlen = load_byte(skb, nhoff + 0/*offsetof(struct iphdr, ihl)*/);  in bpf_func_ip()
179 	nhoff += (verlen & 0xF) << 2;  in bpf_func_ip()
181 	skb->cb[0] = nhoff;  in bpf_func_ip()
183 	return 0;  in bpf_func_ip()
193 		return 0;  in bpf_func_ipv6()
195 	nhoff = skb->cb[0];  in bpf_func_ipv6()
205 	skb->cb[0] = nhoff;  in bpf_func_ipv6()
207 	return 0;  in bpf_func_ipv6()
215 	nhoff = skb->cb[0];  in bpf_func_vlan()
220 	skb->cb[0] = nhoff;  in bpf_func_vlan()
224 	return 0;  in bpf_func_vlan()
232 	nhoff = skb->cb[0];  in bpf_func_mpls()
236 	skb->cb[0] = nhoff;  in bpf_func_mpls()
240 		if ((verlen & 0xF0) == 4)  in bpf_func_mpls()
248 	return 0;  in bpf_func_mpls()
299 	skb->cb[0] = nhoff;  in main_prog()
301 	return 0;  in main_prog()