1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _INET_DIAG_H_
3 #define _INET_DIAG_H_ 1
4
5 #include <net/netlink.h>
6 #include <uapi/linux/inet_diag.h>
7
8 struct inet_hashinfo;
9
10 struct inet_diag_handler {
11 void (*dump)(struct sk_buff *skb,
12 struct netlink_callback *cb,
13 const struct inet_diag_req_v2 *r);
14
15 int (*dump_one)(struct netlink_callback *cb,
16 const struct inet_diag_req_v2 *req);
17
18 void (*idiag_get_info)(struct sock *sk,
19 struct inet_diag_msg *r,
20 void *info);
21
22 int (*idiag_get_aux)(struct sock *sk,
23 bool net_admin,
24 struct sk_buff *skb);
25
26 size_t (*idiag_get_aux_size)(struct sock *sk,
27 bool net_admin);
28
29 int (*destroy)(struct sk_buff *in_skb,
30 const struct inet_diag_req_v2 *req);
31
32 __u16 idiag_type;
33 __u16 idiag_info_size;
34 };
35
36 struct bpf_sk_storage_diag;
37 struct inet_diag_dump_data {
38 struct nlattr *req_nlas[__INET_DIAG_REQ_MAX];
39 #define inet_diag_nla_bc req_nlas[INET_DIAG_REQ_BYTECODE]
40 #define inet_diag_nla_bpf_stgs req_nlas[INET_DIAG_REQ_SK_BPF_STORAGES]
41
42 struct bpf_sk_storage_diag *bpf_stg_diag;
43 };
44
45 struct inet_connection_sock;
46 int inet_sk_diag_fill(struct sock *sk, struct inet_connection_sock *icsk,
47 struct sk_buff *skb, struct netlink_callback *cb,
48 const struct inet_diag_req_v2 *req,
49 u16 nlmsg_flags, bool net_admin);
50 void inet_diag_dump_icsk(struct inet_hashinfo *h, struct sk_buff *skb,
51 struct netlink_callback *cb,
52 const struct inet_diag_req_v2 *r);
53 int inet_diag_dump_one_icsk(struct inet_hashinfo *hashinfo,
54 struct netlink_callback *cb,
55 const struct inet_diag_req_v2 *req);
56
57 struct sock *inet_diag_find_one_icsk(struct net *net,
58 struct inet_hashinfo *hashinfo,
59 const struct inet_diag_req_v2 *req);
60
61 int inet_diag_bc_sk(const struct nlattr *_bc, struct sock *sk);
62
63 void inet_diag_msg_common_fill(struct inet_diag_msg *r, struct sock *sk);
64
inet_diag_msg_attrs_size(void)65 static inline size_t inet_diag_msg_attrs_size(void)
66 {
67 return nla_total_size(1) /* INET_DIAG_SHUTDOWN */
68 + nla_total_size(1) /* INET_DIAG_TOS */
69 #if IS_ENABLED(CONFIG_IPV6)
70 + nla_total_size(1) /* INET_DIAG_TCLASS */
71 + nla_total_size(1) /* INET_DIAG_SKV6ONLY */
72 #endif
73 + nla_total_size(4) /* INET_DIAG_MARK */
74 + nla_total_size(4) /* INET_DIAG_CLASS_ID */
75 #ifdef CONFIG_SOCK_CGROUP_DATA
76 + nla_total_size_64bit(sizeof(u64)) /* INET_DIAG_CGROUP_ID */
77 #endif
78 + nla_total_size(sizeof(struct inet_diag_sockopt))
79 /* INET_DIAG_SOCKOPT */
80 ;
81 }
82 int inet_diag_msg_attrs_fill(struct sock *sk, struct sk_buff *skb,
83 struct inet_diag_msg *r, int ext,
84 struct user_namespace *user_ns, bool net_admin);
85
86 extern int inet_diag_register(const struct inet_diag_handler *handler);
87 extern void inet_diag_unregister(const struct inet_diag_handler *handler);
88 #endif /* _INET_DIAG_H_ */
89