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