1// SPDX-License-Identifier: GPL-2.0-only
2#include "vmlinux.h"
3#include <bpf/bpf_helpers.h>
4#include <bpf/bpf_endian.h>
5
6#define TEST_COMM_LEN 16
7
8struct {
9	__uint(type, BPF_MAP_TYPE_CGROUP_ARRAY);
10	__uint(max_entries, 1);
11	__type(key, u32);
12	__type(value, u32);
13} cgroup_map SEC(".maps");
14
15char _license[] SEC("license") = "GPL";
16
17SEC("tc")
18int test_skb_helpers(struct __sk_buff *skb)
19{
20	struct task_struct *task;
21	char comm[TEST_COMM_LEN];
22	__u32 tpid;
23
24	task = (struct task_struct *)bpf_get_current_task();
25	bpf_probe_read_kernel(&tpid , sizeof(tpid), &task->tgid);
26	bpf_probe_read_kernel_str(&comm, sizeof(comm), &task->comm);
27	return 0;
28}
29