1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
|
// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2025 Intel Corporation */
#include "vmlinux.h"
#include <bpf/bpf_helpers.h>
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;
}
|