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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/include/net/bpf_sk_storage.h
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/* SPDX-License-Identifier: GPL-2.0 */

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/* Copyright (c) 2019 Facebook */

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#ifndef _BPF_SK_STORAGE_H

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#define _BPF_SK_STORAGE_H

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#include <linux/rculist.h>

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#include <linux/list.h>

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#include <linux/hash.h>

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#include <linux/types.h>

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#include <linux/spinlock.h>

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#include <linux/bpf.h>

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#include <net/sock.h>

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#include <uapi/linux/sock_diag.h>

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#include <uapi/linux/btf.h>

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#include <linux/bpf_local_storage.h>

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struct sock;

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void bpf_sk_storage_free(struct sock *sk);

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extern const struct bpf_func_proto bpf_sk_storage_get_proto;

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extern const struct bpf_func_proto bpf_sk_storage_delete_proto;

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extern const struct bpf_func_proto bpf_sk_storage_get_tracing_proto;

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extern const struct bpf_func_proto bpf_sk_storage_delete_tracing_proto;

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struct bpf_local_storage_elem;

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struct bpf_sk_storage_diag;

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struct sk_buff;

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struct nlattr;

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#ifdef CONFIG_BPF_SYSCALL

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int bpf_sk_storage_clone(const struct sock *sk, struct sock *newsk);

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struct bpf_sk_storage_diag *

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bpf_sk_storage_diag_alloc(const struct nlattr *nla_stgs);

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void bpf_sk_storage_diag_free(struct bpf_sk_storage_diag *diag);

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int bpf_sk_storage_diag_put(struct bpf_sk_storage_diag *diag,

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			    struct sock *sk, struct sk_buff *skb,

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			    int stg_array_type,

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			    unsigned int *res_diag_size);

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#else

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static inline int bpf_sk_storage_clone(const struct sock *sk,

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				       struct sock *newsk)

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{

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	return 0;

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}

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static inline struct bpf_sk_storage_diag *

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bpf_sk_storage_diag_alloc(const struct nlattr *nla)

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{

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	return NULL;

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}

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static inline void bpf_sk_storage_diag_free(struct bpf_sk_storage_diag *diag)

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{

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}

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static inline int bpf_sk_storage_diag_put(struct bpf_sk_storage_diag *diag,

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					  struct sock *sk, struct sk_buff *skb,

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					  int stg_array_type,

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					  unsigned int *res_diag_size)

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{

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	return 0;

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}

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#endif

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#endif /* _BPF_SK_STORAGE_H */

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