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// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
#include <vmlinux.h>
#include <bpf/bpf_tracing.h>
#include <bpf/bpf_helpers.h>
#include "bpf_misc.h"
#include "nested_trust_common.h"
char _license[] SEC("license") = "GPL";
struct {
__uint(type, BPF_MAP_TYPE_SK_STORAGE);
__uint(map_flags, BPF_F_NO_PREALLOC);
__type(key, int);
__type(value, u64);
} sk_storage_map SEC(".maps");
SEC("tp_btf/task_newtask")
__success
int BPF_PROG(test_read_cpumask, struct task_struct *task, u64 clone_flags)
{
bpf_cpumask_test_cpu(0, task->cpus_ptr);
return 0;
}
SEC("tp_btf/tcp_probe")
__success
int BPF_PROG(test_skb_field, struct sock *sk, struct sk_buff *skb)
{
bpf_sk_storage_get(&sk_storage_map, skb->sk, 0, 0);
return 0;
}
SEC("tp_btf/task_newtask")
__success
int BPF_PROG(test_nested_offset, struct task_struct *task, u64 clone_flags)
{
bpf_cpumask_first_zero(&task->cpus_mask);
return 0;
}
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