// 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"; /* Prototype for all of the program trace events below: * * TRACE_EVENT(task_newtask, * TP_PROTO(struct task_struct *p, u64 clone_flags) */ SEC("tp_btf/task_newtask") __failure __msg("R2 must be") int BPF_PROG(test_invalid_nested_user_cpus, struct task_struct *task, u64 clone_flags) { bpf_cpumask_test_cpu(0, task->user_cpus_ptr); return 0; } SEC("tp_btf/task_newtask") __failure __msg("R1 must have zero offset when passed to release func or trusted arg to kfunc") int BPF_PROG(test_invalid_nested_offset, struct task_struct *task, u64 clone_flags) { bpf_cpumask_first_zero(&task->cpus_mask); return 0; }