/* SPDX-License-Identifier: GPL-2.0-or-later *//* * INET		An implementation of the TCP/IP protocol suite for the LINUX *		operating system.  INET is implemented using the  BSD Socket *		interface as the means of communication with the user level. * *		Definitions for the "ping" module. */#ifndef _PING_H#define _PING_H #include <net/icmp.h>#include <net/netns/hash.h> /* PING_HTABLE_SIZE must be power of 2 */#define PING_HTABLE_SIZE 	64#define PING_HTABLE_MASK 	(PING_HTABLE_SIZE-1) #define GID_T_MAX (((gid_t)~0U) - 1) /* Compatibility glue so we can support IPv6 when it's compiled as a module */struct pingv6_ops {	int (*ipv6_recv_error)(struct sock *sk, struct msghdr *msg, int len,			       int *addr_len);	void (*ip6_datagram_recv_common_ctl)(struct sock *sk,					     struct msghdr *msg,					     struct sk_buff *skb);	void (*ip6_datagram_recv_specific_ctl)(struct sock *sk,					       struct msghdr *msg,					       struct sk_buff *skb);	int (*icmpv6_err_convert)(u8 type, u8 code, int *err);	void (*ipv6_icmp_error)(struct sock *sk, struct sk_buff *skb, int err,				__be16 port, u32 info, u8 *payload);	int (*ipv6_chk_addr)(struct net *net, const struct in6_addr *addr,			     const struct net_device *dev, int strict);}; struct ping_iter_state {	struct seq_net_private  p;	int			bucket;	sa_family_t		family;}; extern struct proto ping_prot;#if IS_ENABLED(CONFIG_IPV6)extern struct pingv6_ops pingv6_ops;#endif struct pingfakehdr {	struct icmphdr icmph;	struct msghdr *msg;	sa_family_t family;	__wsum wcheck;}; int  ping_get_port(struct sock *sk, unsigned short ident);int ping_hash(struct sock *sk);void ping_unhash(struct sock *sk); int  ping_init_sock(struct sock *sk);void ping_close(struct sock *sk, long timeout);int  ping_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len);void ping_err(struct sk_buff *skb, int offset, u32 info);int  ping_getfrag(void *from, char *to, int offset, int fraglen, int odd,		  struct sk_buff *); int  ping_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,		  int flags, int *addr_len);int  ping_common_sendmsg(int family, struct msghdr *msg, size_t len,			 void *user_icmph, size_t icmph_len);int  ping_queue_rcv_skb(struct sock *sk, struct sk_buff *skb);enum skb_drop_reason ping_rcv(struct sk_buff *skb); #ifdef CONFIG_PROC_FSvoid *ping_seq_start(struct seq_file *seq, loff_t *pos, sa_family_t family);void *ping_seq_next(struct seq_file *seq, void *v, loff_t *pos);void ping_seq_stop(struct seq_file *seq, void *v); int __init ping_proc_init(void);void ping_proc_exit(void);#endif void __init ping_init(void);int  __init pingv6_init(void);void pingv6_exit(void); #endif /* _PING_H */