28 lines
488 B
C
28 lines
488 B
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) 2019 Facebook */
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#include <linux/bpf.h>
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#include <bpf/bpf_helpers.h>
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#include <bpf/bpf_tracing.h>
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struct sk_buff {
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unsigned int len;
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};
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__u64 test_result = 0;
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SEC("fexit/test_pkt_md_access")
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int BPF_PROG(test_main2, struct sk_buff *skb, int ret)
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{
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int len;
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__builtin_preserve_access_index(({
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len = skb->len;
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}));
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if (len != 74 || ret != 0)
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return 0;
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test_result = 1;
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return 0;
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}
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char _license[] SEC("license") = "GPL";
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