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 extern const struct bpf_func_proto bpf_sk_storage_get_tracing_proto; 24 extern const struct bpf_func_proto bpf_sk_storage_delete_tracing_proto; 25 26 struct bpf_local_storage_elem; 27 struct bpf_sk_storage_diag; 28 struct sk_buff; 29 struct nlattr; 30 struct sock; 31 32 #ifdef CONFIG_BPF_SYSCALL 33 int bpf_sk_storage_clone(const struct sock *sk, struct sock *newsk); 34 struct bpf_sk_storage_diag * 35 bpf_sk_storage_diag_alloc(const struct nlattr *nla_stgs); 36 void bpf_sk_storage_diag_free(struct bpf_sk_storage_diag *diag); 37 int bpf_sk_storage_diag_put(struct bpf_sk_storage_diag *diag, 38 struct sock *sk, struct sk_buff *skb, 39 int stg_array_type, 40 unsigned int *res_diag_size); 41 #else 42 static inline int bpf_sk_storage_clone(const struct sock *sk, 43 struct sock *newsk) 44 { 45 return 0; 46 } 47 static inline struct bpf_sk_storage_diag * 48 bpf_sk_storage_diag_alloc(const struct nlattr *nla) 49 { 50 return NULL; 51 } 52 static inline void bpf_sk_storage_diag_free(struct bpf_sk_storage_diag *diag) 53 { 54 } 55 static inline int bpf_sk_storage_diag_put(struct bpf_sk_storage_diag *diag, 56 struct sock *sk, struct sk_buff *skb, 57 int stg_array_type, 58 unsigned int *res_diag_size) 59 { 60 return 0; 61 } 62 #endif 63 64 #endif /* _BPF_SK_STORAGE_H */ 65