/* 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 ICMP module. * * Version:	@(#)icmp.h	1.0.4	05/13/93 * * Authors:	Ross Biro *		Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> */#ifndef _ICMP_H#define	_ICMP_H #include <linux/icmp.h> #include <net/inet_sock.h>#include <net/snmp.h>#include <net/ip.h> struct icmp_err {  int		errno;  unsigned int	fatal:1;}; extern const struct icmp_err icmp_err_convert[];#define ICMP_INC_STATS(net, field)	SNMP_INC_STATS((net)->mib.icmp_statistics, field)#define __ICMP_INC_STATS(net, field)	__SNMP_INC_STATS((net)->mib.icmp_statistics, field)#define ICMPMSGOUT_INC_STATS(net, field)	SNMP_INC_STATS_ATOMIC_LONG((net)->mib.icmpmsg_statistics, field+256)#define ICMPMSGIN_INC_STATS(net, field)		SNMP_INC_STATS_ATOMIC_LONG((net)->mib.icmpmsg_statistics, field) struct dst_entry;struct net_proto_family;struct sk_buff;struct net; void __icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info,		 const struct inet_skb_parm *parm);static inline void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info){	__icmp_send(skb_in, type, code, info, IPCB(skb_in));} #if IS_ENABLED(CONFIG_NF_NAT)void icmp_ndo_send(struct sk_buff *skb_in, int type, int code, __be32 info);#elsestatic inline void icmp_ndo_send(struct sk_buff *skb_in, int type, int code, __be32 info){	struct inet_skb_parm parm; 	memset(&parm, 0, sizeof(parm));	__icmp_send(skb_in, type, code, info, &parm);}#endif int icmp_rcv(struct sk_buff *skb);int icmp_err(struct sk_buff *skb, u32 info);int icmp_init(void);void icmp_out_count(struct net *net, unsigned char type);bool icmp_build_probe(struct sk_buff *skb, struct icmphdr *icmphdr); #endif	/* _ICMP_H */