1// SPDX-License-Identifier: GPL-2.0 2/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */ 3 4#include <vmlinux.h> 5#include <bpf/bpf_tracing.h> 6#include <bpf/bpf_helpers.h> 7#include "bpf_misc.h" 8 9#include "nested_trust_common.h" 10 11char _license[] SEC("license") = "GPL"; 12 13struct { 14 __uint(type, BPF_MAP_TYPE_SK_STORAGE); 15 __uint(map_flags, BPF_F_NO_PREALLOC); 16 __type(key, int); 17 __type(value, u64); 18} sk_storage_map SEC(".maps"); 19 20SEC("tp_btf/task_newtask") 21__success 22int BPF_PROG(test_read_cpumask, struct task_struct *task, u64 clone_flags) 23{ 24 bpf_cpumask_test_cpu(0, task->cpus_ptr); 25 return 0; 26} 27 28SEC("tp_btf/tcp_probe") 29__success 30int BPF_PROG(test_skb_field, struct sock *sk, struct sk_buff *skb) 31{ 32 bpf_sk_storage_get(&sk_storage_map, skb->sk, 0, 0); 33 return 0; 34} 35