// SPDX-License-Identifier: GPL-2.0-only #include "vmlinux.h" #include <bpf/bpf_helpers.h> #include <bpf/bpf_endian.h> #define TEST_COMM_LEN 16 struct { __uint(type, BPF_MAP_TYPE_CGROUP_ARRAY); __uint(max_entries, 1); __type(key, u32); __type(value, u32); } cgroup_map SEC(".maps"); char _license[] SEC("license") = "GPL"; SEC("tc") int test_skb_helpers(struct __sk_buff *skb) { struct task_struct *task; char comm[TEST_COMM_LEN]; __u32 tpid; task = (struct task_struct *)bpf_get_current_task(); bpf_probe_read_kernel(&tpid , sizeof(tpid), &task->tgid); bpf_probe_read_kernel_str(&comm, sizeof(comm), &task->comm); return 0; }