5c7dd7acc3
repo: https://github.com/T-head-Semi/linux commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
32 lines
600 B
C
32 lines
600 B
C
// SPDX-License-Identifier: GPL-2.0
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#include <linux/bpf.h>
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#include <bpf/bpf_helpers.h>
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struct {
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__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
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__uint(max_entries, 1);
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__uint(key_size, sizeof(__u32));
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__uint(value_size, sizeof(__u32));
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} jmp_table SEC(".maps");
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static volatile int count;
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SEC("classifier/0")
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int bpf_func_0(struct __sk_buff *skb)
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{
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count++;
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bpf_tail_call_static(skb, &jmp_table, 0);
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return 1;
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}
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SEC("classifier")
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int entry(struct __sk_buff *skb)
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{
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bpf_tail_call_static(skb, &jmp_table, 0);
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return 0;
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}
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char __license[] SEC("license") = "GPL";
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int _version SEC("version") = 1;
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