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 #include <linux/rculist.h> 7 #include <linux/list.h> 8 #include <linux/hash.h> 9 #include <linux/types.h> 10 #include <linux/spinlock.h> 11 #include <linux/bpf.h> 12 #include <net/sock.h> 13 #include <uapi/linux/sock_diag.h> 14 #include <uapi/linux/btf.h> 15 #include <linux/bpf_local_storage.h> 16 17 struct sock; 18 19 void bpf_sk_storage_free(struct sock *sk); 20 21 extern const struct bpf_func_proto bpf_sk_storage_get_proto; 22 extern const struct bpf_func_proto bpf_sk_storage_delete_proto; 23 24 struct bpf_local_storage_elem; 25 struct bpf_sk_storage_diag; 26 struct sk_buff; 27 struct nlattr; 28 struct sock; 29 30 #ifdef CONFIG_BPF_SYSCALL 31 int bpf_sk_storage_clone(const struct sock *sk, struct sock *newsk); 32 struct bpf_sk_storage_diag * 33 bpf_sk_storage_diag_alloc(const struct nlattr *nla_stgs); 34 void bpf_sk_storage_diag_free(struct bpf_sk_storage_diag *diag); 35 int bpf_sk_storage_diag_put(struct bpf_sk_storage_diag *diag, 36 struct sock *sk, struct sk_buff *skb, 37 int stg_array_type, 38 unsigned int *res_diag_size); 39 #else 40 static inline int bpf_sk_storage_clone(const struct sock *sk, 41 struct sock *newsk) 42 { 43 return 0; 44 } 45 static inline struct bpf_sk_storage_diag * 46 bpf_sk_storage_diag_alloc(const struct nlattr *nla) 47 { 48 return NULL; 49 } 50 static inline void bpf_sk_storage_diag_free(struct bpf_sk_storage_diag *diag) 51 { 52 } 53 static inline int bpf_sk_storage_diag_put(struct bpf_sk_storage_diag *diag, 54 struct sock *sk, struct sk_buff *skb, 55 int stg_array_type, 56 unsigned int *res_diag_size) 57 { 58 return 0; 59 } 60 #endif 61 62 #endif /* _BPF_SK_STORAGE_H */ 63