53 /* Fill 'tuple' with L3 info, and attempt to find L4. On fail, return NULL. */
102 handle_udp(struct __sk_buff *skb, struct bpf_sock_tuple *tuple, bool ipv4)  in handle_udp()  argument
110 	tuple_len = ipv4 ? sizeof(tuple->ipv4) : sizeof(tuple->ipv6);  in handle_udp()
111 	if ((void *)tuple + tuple_len > (void *)(long)skb->data_end)  in handle_udp()
114 	sk = bpf_sk_lookup_udp(skb, tuple, tuple_len, BPF_F_CURRENT_NETNS, 0);  in handle_udp()
118 	dport = ipv4 ? tuple->ipv4.dport : tuple->ipv6.dport;  in handle_udp()
133 handle_tcp(struct __sk_buff *skb, struct bpf_sock_tuple *tuple, bool ipv4)  in handle_tcp()  argument
141 	tuple_len = ipv4 ? sizeof(tuple->ipv4) : sizeof(tuple->ipv6);  in handle_tcp()
142 	if ((void *)tuple + tuple_len > (void *)(long)skb->data_end)  in handle_tcp()
145 	sk = bpf_skc_lookup_tcp(skb, tuple, tuple_len, BPF_F_CURRENT_NETNS, 0);  in handle_tcp()
152 	dport = ipv4 ? tuple->ipv4.dport : tuple->ipv6.dport;  in handle_tcp()
174 	struct bpf_sock_tuple *tuple;  in bpf_sk_assign_test()  local
179 	tuple = get_tuple(skb, &ipv4, &tcp);  in bpf_sk_assign_test()
180 	if (!tuple)  in bpf_sk_assign_test()
189 		ret = handle_tcp(skb, tuple, ipv4);  in bpf_sk_assign_test()
191 		ret = handle_udp(skb, tuple, ipv4);  in bpf_sk_assign_test()