include/net/bpf_sk_storage.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /* Copyright (c) 2019 Facebook */
   3 #ifndef _BPF_SK_STORAGE_H
   4 #define _BPF_SK_STORAGE_H
   5
   6 struct sock;
   7
   8 void bpf_sk_storage_free(struct sock *sk);
   9
  10 extern const struct bpf_func_proto bpf_sk_storage_get_proto;
  11 extern const struct bpf_func_proto bpf_sk_storage_delete_proto;
  12
  13 struct bpf_sk_storage_diag;
  14 struct sk_buff;
  15 struct nlattr;
  16 struct sock;
  17
  18 #ifdef CONFIG_BPF_SYSCALL
  19 int bpf_sk_storage_clone(const struct sock *sk, struct sock *newsk);
  20 struct bpf_sk_storage_diag *
  21 bpf_sk_storage_diag_alloc(const struct nlattr *nla_stgs);
  22 void bpf_sk_storage_diag_free(struct bpf_sk_storage_diag *diag);
  23 int bpf_sk_storage_diag_put(struct bpf_sk_storage_diag *diag,
  24                             struct sock *sk, struct sk_buff *skb,
  25                             int stg_array_type,
  26                             unsigned int *res_diag_size);
  27 #else
  28 static inline int bpf_sk_storage_clone(const struct sock *sk,
  29                                        struct sock *newsk)
  30 {
  31         return 0;
  32 }
  33 static inline struct bpf_sk_storage_diag *
  34 bpf_sk_storage_diag_alloc(const struct nlattr *nla)
  35 {
  36         return NULL;
  37 }
  38 static inline void bpf_sk_storage_diag_free(struct bpf_sk_storage_diag *diag)
  39 {
  40 }
  41 static inline int bpf_sk_storage_diag_put(struct bpf_sk_storage_diag *diag,
  42                                           struct sock *sk, struct sk_buff *skb,
  43                                           int stg_array_type,
  44                                           unsigned int *res_diag_size)
  45 {
  46         return 0;
  47 }
  48 #endif
  49
  50 #endif /* _BPF_SK_STORAGE_H */