1// SPDX-License-Identifier: GPL-2.0
2
3#include "vmlinux.h"
4#include <bpf/bpf_helpers.h>
5
6__u32 set_pid = 0;
7__u64 set_key = 0;
8__u64 set_value = 0;
9
10struct {
11	__uint(type, BPF_MAP_TYPE_HASH);
12	__uint(max_entries, 2);
13	__type(key, __u64);
14	__type(value, __u64);
15} hash_map SEC(".maps");
16
17SEC("tp/syscalls/sys_enter_getpgid")
18int bpf_lookup_and_delete_test(const void *ctx)
19{
20	if (set_pid == bpf_get_current_pid_tgid() >> 32)
21		bpf_map_update_elem(&hash_map, &set_key, &set_value, BPF_NOEXIST);
22
23	return 0;
24}
25
26char _license[] SEC("license") = "GPL";
27