1 // SPDX-License-Identifier: GPL-2.0
4 #include <bpf/bpf_helpers.h>
7 __uint(type, BPF_MAP_TYPE_PROG_ARRAY);
8 __uint(max_entries, 5);
9 __uint(key_size, sizeof(__u32));
10 __uint(value_size, sizeof(__u32));
11 } jmp_table SEC(".maps");
14 int classifier_0(struct __sk_buff *skb)
16 bpf_tail_call_static(skb, &jmp_table, 1);
21 int classifier_1(struct __sk_buff *skb)
23 bpf_tail_call_static(skb, &jmp_table, 2);
28 int classifier_2(struct __sk_buff *skb)
34 int classifier_3(struct __sk_buff *skb)
36 bpf_tail_call_static(skb, &jmp_table, 4);
41 int classifier_4(struct __sk_buff *skb)
43 bpf_tail_call_static(skb, &jmp_table, 3);
48 int entry(struct __sk_buff *skb)
50 bpf_tail_call_static(skb, &jmp_table, 0);
51 /* Check multi-prog update. */
52 bpf_tail_call_static(skb, &jmp_table, 2);
53 /* Check tail call limit. */
54 bpf_tail_call_static(skb, &jmp_table, 3);
58 char __license[] SEC("license") = "GPL";