43 lines
956 B
C
43 lines
956 B
C
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// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) 2021 Facebook */
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#include <linux/bpf.h>
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#include <bpf/bpf_helpers.h>
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#include "bpf_tcp_helpers.h"
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extern const int bpf_prog_active __ksym;
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extern __u64 bpf_kfunc_call_test1(struct sock *sk, __u32 a, __u64 b,
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__u32 c, __u64 d) __ksym;
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extern struct sock *bpf_kfunc_call_test3(struct sock *sk) __ksym;
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int active_res = -1;
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int sk_state_res = -1;
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int __noinline f1(struct __sk_buff *skb)
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{
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struct bpf_sock *sk = skb->sk;
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int *active;
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if (!sk)
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return -1;
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sk = bpf_sk_fullsock(sk);
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if (!sk)
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return -1;
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active = (int *)bpf_per_cpu_ptr(&bpf_prog_active,
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bpf_get_smp_processor_id());
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if (active)
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active_res = *active;
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sk_state_res = bpf_kfunc_call_test3((struct sock *)sk)->sk_state;
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return (__u32)bpf_kfunc_call_test1((struct sock *)sk, 1, 2, 3, 4);
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}
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SEC("classifier")
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int kfunc_call_test1(struct __sk_buff *skb)
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{
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return f1(skb);
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}
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char _license[] SEC("license") = "GPL";
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