Linux kernel mirror (for testing)
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linux
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
8struct inet_hashinfo;
9
10struct inet_diag_handler {
11 struct module *owner;
12 void (*dump)(struct sk_buff *skb,
13 struct netlink_callback *cb,
14 const struct inet_diag_req_v2 *r);
15
16 int (*dump_one)(struct netlink_callback *cb,
17 const struct inet_diag_req_v2 *req);
18
19 void (*idiag_get_info)(struct sock *sk,
20 struct inet_diag_msg *r,
21 void *info);
22
23 int (*idiag_get_aux)(struct sock *sk,
24 bool net_admin,
25 struct sk_buff *skb);
26
27 int (*destroy)(struct sk_buff *in_skb,
28 const struct inet_diag_req_v2 *req);
29
30 __u16 idiag_type;
31 __u16 idiag_info_size;
32};
33
34struct bpf_sk_storage_diag;
35struct inet_diag_dump_data {
36 struct nlattr *req_nlas[__INET_DIAG_REQ_MAX];
37#define inet_diag_nla_bc req_nlas[INET_DIAG_REQ_BYTECODE]
38#define inet_diag_nla_bpf_stgs req_nlas[INET_DIAG_REQ_SK_BPF_STORAGES]
39
40 struct bpf_sk_storage_diag *bpf_stg_diag;
41 bool mark_needed; /* INET_DIAG_BC_MARK_COND present. */
42#ifdef CONFIG_SOCK_CGROUP_DATA
43 bool cgroup_needed; /* INET_DIAG_BC_CGROUP_COND present. */
44#endif
45 bool userlocks_needed; /* INET_DIAG_BC_AUTO present. */
46};
47
48struct inet_connection_sock;
49int inet_sk_diag_fill(struct sock *sk, struct inet_connection_sock *icsk,
50 struct sk_buff *skb, struct netlink_callback *cb,
51 const struct inet_diag_req_v2 *req,
52 u16 nlmsg_flags, bool net_admin);
53
54int inet_diag_bc_sk(const struct inet_diag_dump_data *cb_data, struct sock *sk);
55
56void inet_diag_msg_common_fill(struct inet_diag_msg *r, struct sock *sk);
57
58static inline size_t inet_diag_msg_attrs_size(void)
59{
60 return nla_total_size(1) /* INET_DIAG_SHUTDOWN */
61 + nla_total_size(1) /* INET_DIAG_TOS */
62#if IS_ENABLED(CONFIG_IPV6)
63 + nla_total_size(1) /* INET_DIAG_TCLASS */
64 + nla_total_size(1) /* INET_DIAG_SKV6ONLY */
65#endif
66 + nla_total_size(4) /* INET_DIAG_MARK */
67 + nla_total_size(4) /* INET_DIAG_CLASS_ID */
68#ifdef CONFIG_SOCK_CGROUP_DATA
69 + nla_total_size_64bit(sizeof(u64)) /* INET_DIAG_CGROUP_ID */
70#endif
71 + nla_total_size(sizeof(struct inet_diag_sockopt))
72 /* INET_DIAG_SOCKOPT */
73 ;
74}
75int inet_diag_msg_attrs_fill(struct sock *sk, struct sk_buff *skb,
76 struct inet_diag_msg *r, int ext,
77 struct user_namespace *user_ns, bool net_admin);
78
79extern int inet_diag_register(const struct inet_diag_handler *handler);
80extern void inet_diag_unregister(const struct inet_diag_handler *handler);
81#endif /* _INET_DIAG_H_ */