device:01
     ˆÁÆƒ.ƒÀ¾Ä 	B    /* SPDX-License-Identifier: GPL-2.0 */
#ifndef __SOCK_DIAG_H__
#define __SOCK_DIAG_H__

#include <linux/netlink.h>
#include <linux/user_namespace.h>
#include <net/net_namespace.h>
#include <net/sock.h>
#include <uapi/linux/sock_diag.h>

struct sk_buff;
struct nlmsghdr;
struct sock;

struct sock_diag_handler {
	__u8 family;
	int (*dump)(struct sk_buff *skb, struct nlmsghdr *nlh);
	int (*get_info)(struct sk_buff *skb, struct sock *sk);
	int (*destroy)(struct sk_buff *skb, struct nlmsghdr *nlh);
};

int sock_diag_register(const struct sock_diag_handler *h);
void sock_diag_unregister(const struct sock_diag_handler *h);

void sock_diag_register_inet_compat(int (*fn)(struct sk_buff *skb, struct nlmsghdr *nlh));
void sock_diag_unregister_inet_compat(int (*fn)(struct sk_buff *skb, struct nlmsghdr *nlh));

u64 __sock_gen_cookie(struct sock *sk);

static inline u64 sock_gen_cookie(struct sock *sk)
{
	u64 cookie;

	preempt_disable();
	cookie = __sock_gen_cookie(sk);
	preempt_enable();

	return cookie;
}

int sock_diag_check_cookie(struct sock *sk, const __u32 *cookie);
void sock_diag_save_cookie(struct sock *sk, __u32 *cookie);

int sock_diag_put_meminfo(struct sock *sk, struct sk_buff *skb, int attr);
int sock_diag_put_filterinfo(bool may_report_filterinfo, struct sock *sk,
			     struct sk_buff *skb, int attrtype);

static inline
enum sknetlink_groups sock_diag_destroy_group(const struct sock *sk)
{
	switch (sk->sk_family) {
	case AF_INET:
		if (sk->sk_type == SOCK_RAW)
			return SKNLGRP_NONE;

		switch (sk->sk_protocol) {
		case IPPROTO_TCP:
			return SKNLGRP_INET_TCP_DESTROY;
		case IPPROTO_UDP:
			return SKNLGRP_INET_UDP_DESTROY;
		default:
			return SKNLGRP_NONE;
		}
	case AF_INET6:
		if (sk->sk_type == SOCK_RAW)
			return SKNLGRP_NONE;

		switch (sk->sk_protocol) {
		case IPPROTO_TCP:
			return SKNLGRP_INET6_TCP_DESTROY;
		case IPPROTO_UDP:
			return SKNLGRP_INET6_UDP_DESTROY;
		default:
			return SKNLGRP_NONE;
		}
	default:
		return SKNLGRP_NONE;
	}
}

static inline
bool sock_diag_has_destroy_listeners(const struct sock *sk)
{
	const struct net *n = sock_net(sk);
	const enum sknetlink_groups group = sock_diag_destroy_group(sk);

	return group != SKNLGRP_NONE && n->diag_nlsk &&
		netlink_has_listeners(n->diag_nlsk, group);
}
void sock_diag_broadcast_destroy(struct sock *sk);

int sock_diag_destroy(struct sock *sk, int err);
#endif
     ˆÁÆƒ|¹¾Ä #t    LIBBPF_0.0.1 {
	global:
		bpf_btf_get_fd_by_id;
		bpf_map__btf_key_type_id;
		bpf_map__btf_value_type_id;
		bpf_map__fd;
		bpf_map__name;
		bpf_map__pin;
		bpf_map__reuse_fd;
		bpf_map__set_ifindex;
		bpf_map__set_inner_map_fd;
		bpf_map__unpin;
		bpf_map_delete_elem;
		bpf_map_get_fd_by_id;
		bpf_map_get_next_id;
		bpf_map_get_next_key;
		bpf_map_lookup_and_delete_elem;
		bpf_map_lookup_elem;
		bpf_map_update_elem;
		bpf_obj_get;
		bpf_obj_get_info_by_fd;
		bpf_obj_pin;
		bpf_object__btf_fd;
		bpf_object__close;
		bpf_object__find_map_by_name;
		bpf_object__kversion;
		bpf_object__load;
		bpf_object__name;
		bpf_object__open;
		bpf_object__pin;
		bpf_object__pin_maps;
		bpf_object__pin_programs;
		bpf_object__unpin_maps;
		bpf_object__unpin_programs;
		bpf_prog_attach;
		bpf_prog_detach;
		bpf_prog_detach2;
		bpf_prog_get_fd_by_id;
		bpf_prog_get_next_id;
		bpf_prog_query;
		bpf_program__fd;
		bpf_program__pin;
		bpf_program__set_expected_attach_type;
		bpf_program__set_ifindex;
		bpf_program__set_type;
		bpf_program__unload;
		bpf_program__unpin;
		bpf_prog_linfo__free;
		bpf_prog_linfo__new;
		bpf_prog_linfo__lfind_addr_func;
		bpf_prog_linfo__lfind;
		bpf_raw_tracepoint_open;
		bpf_task_fd_query;
		btf__fd;
		btf__find_by_name;
		btf__free;
		btf__name_by_offset;
		btf__new;
		btf__resolve_size;
		btf__resolve_type;
		btf__type_by_id;
		libbpf_attach_type_by_name;
		libbpf_get_error;
		libbpf_prog_type_by_name;
		libbpf_set_print;
		libbpf_strerror;
	local:
		*;
};

LIBBPF_0.0.2 {
	global:
		bpf_map_lookup_elem_flags;
		bpf_object__btf;
		bpf_object__find_map_fd_by_name;
		btf__get_raw_data;
		btf_ext__free;
		btf_ext__get_ra