42 /* Fill 'tuple' with L3 info, and attempt to find L4. On fail, return NULL. */
91 handle_udp(struct __sk_buff *skb, struct bpf_sock_tuple *tuple, bool ipv4)  in handle_udp()  argument
100 	tuple_len = ipv4 ? sizeof(tuple->ipv4) : sizeof(tuple->ipv6);  in handle_udp()
101 	if ((void *)tuple + tuple_len > (void *)(long)skb->data_end)  in handle_udp()
104 	sk = bpf_sk_lookup_udp(skb, tuple, tuple_len, BPF_F_CURRENT_NETNS, 0);  in handle_udp()
108 	dport = ipv4 ? tuple->ipv4.dport : tuple->ipv6.dport;  in handle_udp()
123 handle_tcp(struct __sk_buff *skb, struct bpf_sock_tuple *tuple, bool ipv4)  in handle_tcp()  argument
132 	tuple_len = ipv4 ? sizeof(tuple->ipv4) : sizeof(tuple->ipv6);  in handle_tcp()
133 	if ((void *)tuple + tuple_len > (void *)(long)skb->data_end)  in handle_tcp()
136 	sk = bpf_skc_lookup_tcp(skb, tuple, tuple_len, BPF_F_CURRENT_NETNS, 0);  in handle_tcp()
143 	dport = ipv4 ? tuple->ipv4.dport : tuple->ipv6.dport;  in handle_tcp()
165 	struct bpf_sock_tuple *tuple, ln = {0};  in bpf_sk_assign_test()  local
171 	tuple = get_tuple(skb, &ipv4, &tcp);  in bpf_sk_assign_test()
172 	if (!tuple)  in bpf_sk_assign_test()
181 		ret = handle_tcp(skb, tuple, ipv4);  in bpf_sk_assign_test()
183 		ret = handle_udp(skb, tuple, ipv4);  in bpf_sk_assign_test()