icmp.h

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/*
 * 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, <[email protected]>
 *
 *      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;

extern void icmp_send(struct sk_buff *skb_in,  int type, int code, __be32 info);
extern int  icmp_rcv(struct sk_buff *skb);
extern int  icmp_init(void);
extern void icmp_out_count(struct net *net, unsigned char type);

#endif  /* _ICMP_H */