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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 | ||
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_ */ |