53 lines
1.0 KiB
C
53 lines
1.0 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
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#include <vmlinux.h>
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#include <string.h>
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#include <stdbool.h>
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#include <bpf/bpf_tracing.h>
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#include "bpf_misc.h"
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char _license[] SEC("license") = "GPL";
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int err;
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void *user_ptr;
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SEC("lsm/file_open")
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__failure
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__msg("Unreleased reference id=")
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int on_nanosleep_unreleased_ref(void *ctx)
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{
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struct task_struct *task = bpf_get_current_task_btf();
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struct file *file = bpf_get_task_exe_file(task);
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struct bpf_dynptr dynptr;
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if (!file)
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return 0;
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err = bpf_dynptr_from_file(file, 0, &dynptr);
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return err ? 1 : 0;
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}
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SEC("xdp")
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__failure
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__msg("Expected a dynptr of type file as arg #0")
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int xdp_wrong_dynptr_type(struct xdp_md *xdp)
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{
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struct bpf_dynptr dynptr;
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bpf_dynptr_from_xdp(xdp, 0, &dynptr);
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bpf_dynptr_file_discard(&dynptr);
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return 0;
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}
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SEC("xdp")
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__failure
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__msg("Expected an initialized dynptr as arg #0")
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int xdp_no_dynptr_type(struct xdp_md *xdp)
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{
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struct bpf_dynptr dynptr;
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bpf_dynptr_file_discard(&dynptr);
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return 0;
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}
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