42 static inline int ip_is_fragment(struct __sk_buff *ctx, __u64 nhoff)  in ip_is_fragment()  argument
44 	return load_half(ctx, nhoff + offsetof(struct iphdr, frag_off))  in ip_is_fragment()
109 	__u32 nhoff = skb->cb[0];  in parse_ip_proto()  local
120 					    nhoff + offsetof(struct gre_hdr, flags));  in parse_ip_proto()
122 					    nhoff + offsetof(struct gre_hdr, proto));  in parse_ip_proto()
127 		nhoff += 4;  in parse_ip_proto()
129 			nhoff += 4;  in parse_ip_proto()
131 			nhoff += 4;  in parse_ip_proto()
133 			nhoff += 4;  in parse_ip_proto()
135 		skb->cb[0] = nhoff;  in parse_ip_proto()
147 		g->flow.ports = load_word(skb, nhoff);  in parse_ip_proto()
161 	__u32 nhoff, verlen, ip_proto;  in bpf_func_ip()  local
166 	nhoff = skb->cb[0];  in bpf_func_ip()
168 	if (unlikely(ip_is_fragment(skb, nhoff)))  in bpf_func_ip()
171 	ip_proto = load_byte(skb, nhoff + offsetof(struct iphdr, protocol));  in bpf_func_ip()
174 		g->flow.src = load_word(skb, nhoff + offsetof(struct iphdr, saddr));  in bpf_func_ip()
175 		g->flow.dst = load_word(skb, nhoff + offsetof(struct iphdr, daddr));  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()
190 	__u32 nhoff, ip_proto;  in bpf_func_ipv6()  local
195 	nhoff = skb->cb[0];  in bpf_func_ipv6()
198 			     nhoff + offsetof(struct ipv6hdr, nexthdr));  in bpf_func_ipv6()
200 				     nhoff + offsetof(struct ipv6hdr, saddr));  in bpf_func_ipv6()
202 				     nhoff + offsetof(struct ipv6hdr, daddr));  in bpf_func_ipv6()
203 	nhoff += sizeof(struct ipv6hdr);  in bpf_func_ipv6()
205 	skb->cb[0] = nhoff;  in bpf_func_ipv6()
213 	__u32 nhoff, proto;  in bpf_func_vlan()  local
215 	nhoff = skb->cb[0];  in bpf_func_vlan()
217 	proto = load_half(skb, nhoff + offsetof(struct vlan_hdr,  in bpf_func_vlan()
219 	nhoff += sizeof(struct vlan_hdr);  in bpf_func_vlan()
220 	skb->cb[0] = nhoff;  in bpf_func_vlan()
230 	__u32 nhoff, label;  in bpf_func_mpls()  local
232 	nhoff = skb->cb[0];  in bpf_func_mpls()
234 	label = load_word(skb, nhoff);  in bpf_func_mpls()
235 	nhoff += sizeof(struct mpls_label);  in bpf_func_mpls()
236 	skb->cb[0] = nhoff;  in bpf_func_mpls()
239 		__u8 verlen = load_byte(skb, nhoff);  in bpf_func_mpls()
296 	__u32 nhoff = ETH_HLEN;  in main_prog()  local
299 	skb->cb[0] = nhoff;  in main_prog()