1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun /* Copyright (c) 2019 Facebook */
3*4882a593Smuzhiyun #ifndef _BPF_SK_STORAGE_H
4*4882a593Smuzhiyun #define _BPF_SK_STORAGE_H
5*4882a593Smuzhiyun
6*4882a593Smuzhiyun #include <linux/rculist.h>
7*4882a593Smuzhiyun #include <linux/list.h>
8*4882a593Smuzhiyun #include <linux/hash.h>
9*4882a593Smuzhiyun #include <linux/types.h>
10*4882a593Smuzhiyun #include <linux/spinlock.h>
11*4882a593Smuzhiyun #include <linux/bpf.h>
12*4882a593Smuzhiyun #include <net/sock.h>
13*4882a593Smuzhiyun #include <uapi/linux/sock_diag.h>
14*4882a593Smuzhiyun #include <uapi/linux/btf.h>
15*4882a593Smuzhiyun #include <linux/bpf_local_storage.h>
16*4882a593Smuzhiyun
17*4882a593Smuzhiyun struct sock;
18*4882a593Smuzhiyun
19*4882a593Smuzhiyun void bpf_sk_storage_free(struct sock *sk);
20*4882a593Smuzhiyun
21*4882a593Smuzhiyun extern const struct bpf_func_proto bpf_sk_storage_get_proto;
22*4882a593Smuzhiyun extern const struct bpf_func_proto bpf_sk_storage_delete_proto;
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun struct bpf_local_storage_elem;
25*4882a593Smuzhiyun struct bpf_sk_storage_diag;
26*4882a593Smuzhiyun struct sk_buff;
27*4882a593Smuzhiyun struct nlattr;
28*4882a593Smuzhiyun struct sock;
29*4882a593Smuzhiyun
30*4882a593Smuzhiyun #ifdef CONFIG_BPF_SYSCALL
31*4882a593Smuzhiyun int bpf_sk_storage_clone(const struct sock *sk, struct sock *newsk);
32*4882a593Smuzhiyun struct bpf_sk_storage_diag *
33*4882a593Smuzhiyun bpf_sk_storage_diag_alloc(const struct nlattr *nla_stgs);
34*4882a593Smuzhiyun void bpf_sk_storage_diag_free(struct bpf_sk_storage_diag *diag);
35*4882a593Smuzhiyun int bpf_sk_storage_diag_put(struct bpf_sk_storage_diag *diag,
36*4882a593Smuzhiyun struct sock *sk, struct sk_buff *skb,
37*4882a593Smuzhiyun int stg_array_type,
38*4882a593Smuzhiyun unsigned int *res_diag_size);
39*4882a593Smuzhiyun #else
bpf_sk_storage_clone(const struct sock * sk,struct sock * newsk)40*4882a593Smuzhiyun static inline int bpf_sk_storage_clone(const struct sock *sk,
41*4882a593Smuzhiyun struct sock *newsk)
42*4882a593Smuzhiyun {
43*4882a593Smuzhiyun return 0;
44*4882a593Smuzhiyun }
45*4882a593Smuzhiyun static inline struct bpf_sk_storage_diag *
bpf_sk_storage_diag_alloc(const struct nlattr * nla)46*4882a593Smuzhiyun bpf_sk_storage_diag_alloc(const struct nlattr *nla)
47*4882a593Smuzhiyun {
48*4882a593Smuzhiyun return NULL;
49*4882a593Smuzhiyun }
bpf_sk_storage_diag_free(struct bpf_sk_storage_diag * diag)50*4882a593Smuzhiyun static inline void bpf_sk_storage_diag_free(struct bpf_sk_storage_diag *diag)
51*4882a593Smuzhiyun {
52*4882a593Smuzhiyun }
bpf_sk_storage_diag_put(struct bpf_sk_storage_diag * diag,struct sock * sk,struct sk_buff * skb,int stg_array_type,unsigned int * res_diag_size)53*4882a593Smuzhiyun static inline int bpf_sk_storage_diag_put(struct bpf_sk_storage_diag *diag,
54*4882a593Smuzhiyun struct sock *sk, struct sk_buff *skb,
55*4882a593Smuzhiyun int stg_array_type,
56*4882a593Smuzhiyun unsigned int *res_diag_size)
57*4882a593Smuzhiyun {
58*4882a593Smuzhiyun return 0;
59*4882a593Smuzhiyun }
60*4882a593Smuzhiyun #endif
61*4882a593Smuzhiyun
62*4882a593Smuzhiyun #endif /* _BPF_SK_STORAGE_H */
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