85 lines
1.6 KiB
C
85 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
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#include <linux/bpf.h>
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#include <linux/btf.h>
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#include <linux/init.h>
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#include <linux/module.h>
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struct bpf_test_no_cfi_ops {
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void (*fn_1)(void);
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void (*fn_2)(void);
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};
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static int dummy_init(struct btf *btf)
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{
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return 0;
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}
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static int dummy_init_member(const struct btf_type *t,
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const struct btf_member *member,
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void *kdata, const void *udata)
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{
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return 0;
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}
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static int dummy_reg(void *kdata)
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{
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return 0;
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}
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static void dummy_unreg(void *kdata)
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{
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}
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static const struct bpf_verifier_ops dummy_verifier_ops;
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static void bpf_test_no_cfi_ops__fn_1(void)
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{
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}
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static void bpf_test_no_cfi_ops__fn_2(void)
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{
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}
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static struct bpf_test_no_cfi_ops __test_no_cif_ops = {
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.fn_1 = bpf_test_no_cfi_ops__fn_1,
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.fn_2 = bpf_test_no_cfi_ops__fn_2,
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};
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static struct bpf_struct_ops test_no_cif_ops = {
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.verifier_ops = &dummy_verifier_ops,
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.init = dummy_init,
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.init_member = dummy_init_member,
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.reg = dummy_reg,
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.unreg = dummy_unreg,
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.name = "bpf_test_no_cfi_ops",
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.owner = THIS_MODULE,
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};
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static int bpf_test_no_cfi_init(void)
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{
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int ret;
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ret = register_bpf_struct_ops(&test_no_cif_ops,
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bpf_test_no_cfi_ops);
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if (!ret)
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return -EINVAL;
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test_no_cif_ops.cfi_stubs = &__test_no_cif_ops;
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ret = register_bpf_struct_ops(&test_no_cif_ops,
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bpf_test_no_cfi_ops);
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return ret;
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}
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static void bpf_test_no_cfi_exit(void)
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{
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}
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module_init(bpf_test_no_cfi_init);
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module_exit(bpf_test_no_cfi_exit);
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MODULE_AUTHOR("Kuifeng Lee");
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MODULE_DESCRIPTION("BPF no cfi_stubs test module");
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MODULE_LICENSE("Dual BSD/GPL");
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