/*
   * 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>
   *
   *		This program is free software; you can redistribute it and/or
   *		modify it under the terms of the GNU General Public License
   *		as published by the Free Software Foundation; either version
   *		2 of the License, or (at your option) any later version.
   */
  #ifndef _ICMP_H
  #define	_ICMP_H
  
  #include <linux/icmp.h>
  
  #include <net/inet_sock.h>
  #include <net/snmp.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_BH(net, field)	SNMP_INC_STATS_BH((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_BH(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);
  int icmp_rcv(struct sk_buff *skb);
  void icmp_err(struct sk_buff *skb, u32 info);
  int icmp_init(void);
  void icmp_out_count(struct net *net, unsigned char type);
  
  #endif	/* _ICMP_H */