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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 protocol.
*
* Version: @(#)icmp.h 1.0.3 04/28/93
*
* Author: 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 _LINUX_ICMP_H
#define _LINUX_ICMP_H
#include <linux/types.h>
#define ICMP_ECHOREPLY 0
#define ICMP_DEST_UNREACH 3
#define ICMP_SOURCE_QUENCH 4
#define ICMP_REDIRECT 5
#define ICMP_ECHO 8
#define ICMP_TIME_EXCEEDED 11
#define ICMP_PARAMETERPROB 12
#define ICMP_TIMESTAMP 13
#define ICMP_TIMESTAMPREPLY 14
#define ICMP_INFO_REQUEST 15
#define ICMP_INFO_REPLY 16
#define ICMP_ADDRESS 17
#define ICMP_ADDRESSREPLY 18
#define NR_ICMP_TYPES 18
#define ICMP_NET_UNREACH 0
#define ICMP_HOST_UNREACH 1
#define ICMP_PROT_UNREACH 2
#define ICMP_PORT_UNREACH 3
#define ICMP_FRAG_NEEDED 4
#define ICMP_SR_FAILED 5
#define ICMP_NET_UNKNOWN 6
#define ICMP_HOST_UNKNOWN 7
#define ICMP_HOST_ISOLATED 8
#define ICMP_NET_ANO 9
#define ICMP_HOST_ANO 10
#define ICMP_NET_UNR_TOS 11
#define ICMP_HOST_UNR_TOS 12
#define ICMP_PKT_FILTERED 13
#define ICMP_PREC_VIOLATION 14
#define ICMP_PREC_CUTOFF 15
#define NR_ICMP_UNREACH 15
#define ICMP_REDIR_NET 0
#define ICMP_REDIR_HOST 1
#define ICMP_REDIR_NETTOS 2
#define ICMP_REDIR_HOSTTOS 3
#define ICMP_EXC_TTL 0
#define ICMP_EXC_FRAGTIME 1
struct icmphdr {
__u8 type;
__u8 code;
__sum16 checksum;
union {
struct {
__be16 id;
__be16 sequence;
} echo;
__be32 gateway;
struct {
__be16 __unused;
__be16 mtu;
} frag;
} un;
};
#ifdef __KERNEL__
#include <linux/skbuff.h>
static inline struct icmphdr *icmp_hdr(const struct sk_buff *skb)
{
return (struct icmphdr *)skb_transport_header(skb);
}
#endif
#define ICMP_FILTER 1
struct icmp_filter {
__u32 data;
};
#endif
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