linux/tools/testing/selftests/bpf/progs/nested_trust_success.c
David Vernet a6541f4d28 selftests/bpf: Add nested trust selftests suite
Now that defining trusted fields in a struct is supported, we should add
selftests to verify the behavior. This patch adds a few such testcases.

Signed-off-by: David Vernet <void@manifault.com>
Link: https://lore.kernel.org/r/20230125143816.721952-4-void@manifault.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-01-25 07:57:50 -08:00

20 lines
445 B
C

// 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";
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;
}