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// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2021 Facebook */
#include <vmlinux.h>
#include <bpf/bpf_helpers.h>
extern void bpf_kfunc_call_test_mem_len_pass1(void *mem, int len) __ksym;
struct syscall_test_args {
__u8 data[16];
size_t size;
};
SEC("?syscall")
int kfunc_syscall_test_fail(struct syscall_test_args *args)
{
bpf_kfunc_call_test_mem_len_pass1(&args->data, sizeof(*args) + 1);
return 0;
}
SEC("?syscall")
int kfunc_syscall_test_null_fail(struct syscall_test_args *args)
{
/* Must be called with args as a NULL pointer
* we do not check for it to have the verifier consider that
* the pointer might not be null, and so we can load it.
*
* So the following can not be added:
*
* if (args)
* return -22;
*/
bpf_kfunc_call_test_mem_len_pass1(args, sizeof(*args));
return 0;
}
char _license[] SEC("license") = "GPL";
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