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1// SPDX-License-Identifier: GPL-2.02/* Copyright (c) 2024 Meta Platforms, Inc */3#include <vmlinux.h>4#include <bpf/bpf_helpers.h>5#include "bpf_misc.h"6#include "bpf_kfuncs.h"7#include "../bpf_testmod/bpf_testmod_kfunc.h"8 9SEC("tc")10int kfunc_dynptr_nullable_test1(struct __sk_buff *skb)11{12 struct bpf_dynptr data;13 14 bpf_dynptr_from_skb(skb, 0, &data);15 bpf_kfunc_dynptr_test(&data, NULL);16 17 return 0;18}19 20SEC("tc")21int kfunc_dynptr_nullable_test2(struct __sk_buff *skb)22{23 struct bpf_dynptr data;24 25 bpf_dynptr_from_skb(skb, 0, &data);26 bpf_kfunc_dynptr_test(&data, &data);27 28 return 0;29}30 31SEC("tc")32__failure __msg("expected pointer to stack or const struct bpf_dynptr")33int kfunc_dynptr_nullable_test3(struct __sk_buff *skb)34{35 struct bpf_dynptr data;36 37 bpf_dynptr_from_skb(skb, 0, &data);38 bpf_kfunc_dynptr_test(NULL, &data);39 40 return 0;41}42 43char _license[] SEC("license") = "GPL";44