52 lines
1.1 KiB
C
52 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include "vmlinux.h"
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#include <bpf/bpf_helpers.h>
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#include <bpf/bpf_tracing.h>
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struct {
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__uint(type, BPF_MAP_TYPE_ARRAY);
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__uint(max_entries, 8);
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__type(key, __u32);
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__type(value, __u64);
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} test_array SEC(".maps");
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unsigned int triggered;
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static __u64 test_cb(struct bpf_map *map, __u32 *key, __u64 *val, void *data)
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{
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return 1;
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}
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SEC("fexit/bpf_testmod_return_ptr")
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int BPF_PROG(handle_fexit_ret_subprogs, int arg, struct file *ret)
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{
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*(volatile long *)ret;
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*(volatile int *)&ret->f_mode;
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bpf_for_each_map_elem(&test_array, test_cb, NULL, 0);
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triggered++;
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return 0;
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}
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SEC("fexit/bpf_testmod_return_ptr")
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int BPF_PROG(handle_fexit_ret_subprogs2, int arg, struct file *ret)
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{
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*(volatile long *)ret;
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*(volatile int *)&ret->f_mode;
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bpf_for_each_map_elem(&test_array, test_cb, NULL, 0);
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triggered++;
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return 0;
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}
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SEC("fexit/bpf_testmod_return_ptr")
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int BPF_PROG(handle_fexit_ret_subprogs3, int arg, struct file *ret)
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{
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*(volatile long *)ret;
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*(volatile int *)&ret->f_mode;
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bpf_for_each_map_elem(&test_array, test_cb, NULL, 0);
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triggered++;
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return 0;
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}
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char _license[] SEC("license") = "GPL";
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