| // SPDX-License-Identifier: GPL-2.0 | |
| #include <linux/bpf.h> | |
| #include <bpf/bpf_helpers.h> | |
| struct { | |
| __uint(type, BPF_MAP_TYPE_PROG_ARRAY); | |
| __uint(max_entries, 1); | |
| __uint(key_size, sizeof(__u32)); | |
| __uint(value_size, sizeof(__u32)); | |
| } jmp_table SEC(".maps"); | |
| int count = 0; | |
| SEC("freplace") | |
| int entry_freplace(struct __sk_buff *skb) | |
| { | |
| count++; | |
| bpf_tail_call_static(skb, &jmp_table, 0); | |
| return count; | |
| } | |
| char __license[] SEC("license") = "GPL"; |