blob: c1fdecabeabfcb742e41b2f968d3b8a0d615a311 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2021 Facebook */
#include <linux/bpf.h>
#include <bpf/bpf_helpers.h>
#include "bpf_tcp_helpers.h"
extern const int bpf_prog_active __ksym;
extern __u64 bpf_kfunc_call_test1(struct sock *sk, __u32 a, __u64 b,
__u32 c, __u64 d) __ksym;
extern struct sock *bpf_kfunc_call_test3(struct sock *sk) __ksym;
int active_res = -1;
int sk_state_res = -1;
int __noinline f1(struct __sk_buff *skb)
{
struct bpf_sock *sk = skb->sk;
int *active;
if (!sk)
return -1;
sk = bpf_sk_fullsock(sk);
if (!sk)
return -1;
active = (int *)bpf_per_cpu_ptr(&bpf_prog_active,
bpf_get_smp_processor_id());
if (active)
active_res = *active;
sk_state_res = bpf_kfunc_call_test3((struct sock *)sk)->sk_state;
return (__u32)bpf_kfunc_call_test1((struct sock *)sk, 1, 2, 3, 4);
}
SEC("tc")
int kfunc_call_test1(struct __sk_buff *skb)
{
return f1(skb);
}
char _license[] SEC("license") = "GPL";
|
