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