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