// 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; }