root/include/net/icmp.h

INCLUDED FROM

DEFINITIONS

1. raw_sk

/*
 * 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      fatal:1;
};

extern 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((net)->mib.icmpmsg_statistics, field+256)
#define ICMPMSGIN_INC_STATS_BH(net, field)      SNMP_INC_STATS_BH((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_ioctl(struct sock *sk, int cmd, unsigned long arg);
extern int      icmp_init(void);
extern void     icmp_out_count(struct net *net, unsigned char type);

/* Move into dst.h ? */
extern int      xrlim_allow(struct dst_entry *dst, int timeout);

struct raw_sock {
        /* inet_sock has to be the first member */
        struct inet_sock   inet;
        struct icmp_filter filter;
};

static inline struct raw_sock *raw_sk(const struct sock *sk)
{
        return (struct raw_sock *)sk;
}

#endif  /* _ICMP_H */