Contributors: 3
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Maciej Fijalkowski |
243 |
96.81% |
1 |
33.33% |
| Andrii Nakryiko |
5 |
1.99% |
1 |
33.33% |
| Daniel Borkmann |
3 |
1.20% |
1 |
33.33% |
| Total |
251 |
|
3 |
|
// SPDX-License-Identifier: GPL-2.0
#include <linux/bpf.h>
#include <bpf/bpf_helpers.h>
#include "bpf_legacy.h"
struct {
__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
__uint(max_entries, 2);
__uint(key_size, sizeof(__u32));
__uint(value_size, sizeof(__u32));
} jmp_table SEC(".maps");
__noinline
int subprog_tail2(struct __sk_buff *skb)
{
volatile char arr[64] = {};
if (load_word(skb, 0) || load_half(skb, 0))
bpf_tail_call_static(skb, &jmp_table, 10);
else
bpf_tail_call_static(skb, &jmp_table, 1);
return skb->len;
}
static __noinline
int subprog_tail(struct __sk_buff *skb)
{
volatile char arr[64] = {};
bpf_tail_call_static(skb, &jmp_table, 0);
return skb->len * 2;
}
SEC("tc")
int classifier_0(struct __sk_buff *skb)
{
volatile char arr[128] = {};
return subprog_tail2(skb);
}
SEC("tc")
int classifier_1(struct __sk_buff *skb)
{
volatile char arr[128] = {};
return skb->len * 3;
}
SEC("tc")
int entry(struct __sk_buff *skb)
{
volatile char arr[128] = {};
return subprog_tail(skb);
}
char __license[] SEC("license") = "GPL";