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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 | 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 | |
| 34 | struct bpf_sk_storage_diag; |
| 35 | struct 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 | |
| 48 | struct inet_connection_sock; |
| 49 | int 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 | |
| 54 | int inet_diag_bc_sk(const struct inet_diag_dump_data *cb_data, struct sock *sk); |
| 55 | |
| 56 | void inet_diag_msg_common_fill(struct inet_diag_msg *r, struct sock *sk); |
| 57 | |
| 58 | static 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 | } |
| 75 | int 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 | |
| 79 | extern int inet_diag_register(const struct inet_diag_handler *handler); |
| 80 | extern void inet_diag_unregister(const struct inet_diag_handler *handler); |
| 81 | #endif /* _INET_DIAG_H_ */ |
| 82 |
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