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/* 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 ip_options *opt);
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)->opt);
}
#if IS_ENABLED(CONFIG_NF_NAT)
void icmp_ndo_send(struct sk_buff *skb_in, int type, int code, __be32 info);
#else
static inline void icmp_ndo_send(struct sk_buff *skb_in, int type, int code, __be32 info)
{
struct ip_options opts = { 0 };
__icmp_send(skb_in, type, code, info, &opts);
}
#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 */