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/icmp.h>
22
23#include <net/inet_sock.h>
24#include <net/snmp.h>
25#include <net/ip.h>
26
27struct icmp_err {
28 int errno;
29 unsigned int fatal:1;
30};
31
32extern const struct icmp_err icmp_err_convert[];
33#define ICMP_INC_STATS(net, field) SNMP_INC_STATS((net)->mib.icmp_statistics, field)
34#define __ICMP_INC_STATS(net, field) __SNMP_INC_STATS((net)->mib.icmp_statistics, field)
35#define ICMPMSGOUT_INC_STATS(net, field) SNMP_INC_STATS_ATOMIC_LONG((net)->mib.icmpmsg_statistics, field+256)
36#define ICMPMSGIN_INC_STATS(net, field) SNMP_INC_STATS_ATOMIC_LONG((net)->mib.icmpmsg_statistics, field)
37
38struct dst_entry;
39struct net_proto_family;
40struct sk_buff;
41struct net;
42
43void __icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info,
44 const struct ip_options *opt);
45static inline void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
46{
47 __icmp_send(skb_in, type, code, info, &IPCB(skb_in)->opt);
48}
49
50int icmp_rcv(struct sk_buff *skb);
51int icmp_err(struct sk_buff *skb, u32 info);
52int icmp_init(void);
53void icmp_out_count(struct net *net, unsigned char type);
54
55#endif /* _ICMP_H */
56