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1// SPDX-License-Identifier: GPL-2.02 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