// SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2025 Intel Corporation */ #include "vmlinux.h" #include char _license[] SEC("license") = "GPL"; struct { __uint(type, BPF_MAP_TYPE_HASH); __uint(max_entries, 128); __type(key, __u64); __type(value, __u64); } hashmap SEC(".maps"); static int cb(struct bpf_map *map, __u64 *key, __u64 *val, void *arg) { bpf_map_delete_elem(map, key); bpf_map_update_elem(map, key, val, 0); return 0; } SEC("tc") int test_pkt_access(struct __sk_buff *skb) { (void)skb; bpf_for_each_map_elem(&hashmap, cb, NULL, 0); return 0; }