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1/*
2 * INET An implementation of the TCP/IP protocol suite for the LINUX
3 * operating system. INET is implemented using the BSD Socket
4 * interface as the means of communication with the user level.
5 *
6 * Definitions for the ICMP module.
7 *
8 * Version: @(#)icmp.h 1.0.4 05/13/93
9 *
10 * Authors: Ross Biro
11 * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
12 *
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License
15 * as published by the Free Software Foundation; either version
16 * 2 of the License, or (at your option) any later version.
17 */
18#ifndef _ICMP_H
19#define _ICMP_H
20
21#include <linux/config.h>
22#include <linux/icmp.h>
23#include <linux/skbuff.h>
24
25#include <net/sock.h>
26#include <net/protocol.h>
27#include <net/snmp.h>
28#include <linux/ip.h>
29
30struct icmp_err {
31 int errno;
32 unsigned fatal:1;
33};
34
35extern struct icmp_err icmp_err_convert[];
36DECLARE_SNMP_STAT(struct icmp_mib, icmp_statistics);
37#define ICMP_INC_STATS(field) SNMP_INC_STATS(icmp_statistics, field)
38#define ICMP_INC_STATS_BH(field) SNMP_INC_STATS_BH(icmp_statistics, field)
39#define ICMP_INC_STATS_USER(field) SNMP_INC_STATS_USER(icmp_statistics, field)
40
41extern void icmp_send(struct sk_buff *skb_in, int type, int code, u32 info);
42extern int icmp_rcv(struct sk_buff *skb);
43extern int icmp_ioctl(struct sock *sk, int cmd, unsigned long arg);
44extern void icmp_init(struct net_proto_family *ops);
45
46/* Move into dst.h ? */
47extern int xrlim_allow(struct dst_entry *dst, int timeout);
48
49struct raw_sock {
50 /* inet_sock has to be the first member */
51 struct inet_sock inet;
52 struct icmp_filter filter;
53};
54
55static inline struct raw_sock *raw_sk(const struct sock *sk)
56{
57 return (struct raw_sock *)sk;
58}
59
60#endif /* _ICMP_H */