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1// SPDX-License-Identifier: GPL-2.02/* Copyright (c) 2024 Huawei Technologies Co., Ltd */3 4#include "vmlinux.h"5#include <errno.h>6#include <bpf/bpf_helpers.h>7 8char _license[] SEC("license") = "GPL";9 10struct {11 __uint(type, BPF_MAP_TYPE_PROG_ARRAY);12 __uint(max_entries, 1);13 __uint(key_size, sizeof(__u32));14 __uint(value_size, sizeof(__u32));15} jmp_table SEC(".maps");16 17SEC("lsm/file_permission")18int lsm_file_permission_prog(void *ctx)19{20 return 0;21}22 23SEC("lsm/file_alloc_security")24int lsm_file_alloc_security_prog(void *ctx)25{26 return 0;27}28 29SEC("lsm/file_alloc_security")30int lsm_file_alloc_security_entry(void *ctx)31{32 bpf_tail_call_static(ctx, &jmp_table, 0);33 return 0;34}35