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