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/** @file
Header file for ICMP protocol.
Copyright (c) 2005 - 2009, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef __EFI_IP4_ICMP_H__
#define __EFI_IP4_ICMP_H__
//
// ICMP type definations
//
#define ICMP_ECHO_REPLY 0
#define ICMP_DEST_UNREACHABLE 3
#define ICMP_SOURCE_QUENCH 4
#define ICMP_REDIRECT 5
#define ICMP_ECHO_REQUEST 8
#define ICMP_TIME_EXCEEDED 11
#define ICMP_PARAMETER_PROBLEM 12
#define ICMP_TIMESTAMP 13
#define ICMP_INFO_REQUEST 15
#define ICMP_INFO_REPLY 16
#define ICMP_TYPE_MAX ICMP_INFO_REPLY
#define ICMP_DEFAULT_CODE 0
//
// ICMP code definations for ICMP_DEST_UNREACHABLE
//
#define ICMP_NET_UNREACHABLE 0
#define ICMP_HOST_UNREACHABLE 1
#define ICMP_PROTO_UNREACHABLE 2 // Host may generate
#define ICMP_PORT_UNREACHABLE 3 // Host may generate
#define ICMP_FRAGMENT_FAILED 4
#define ICMP_SOURCEROUTE_FAILED 5 // Host may generate
#define ICMP_NET_UNKNOWN 6
#define ICMP_HOST_UNKNOWN 7
#define ICMP_SOURCE_ISOLATED 8
#define ICMP_NET_PROHIBITED 9
#define ICMP_HOST_PROHIBITED 10
#define ICMP_NET_UNREACHABLE_TOS 11
#define ICMP_HOST_UNREACHABLE_TOS 12
//
// ICMP code definations for ICMP_TIME_EXCEEDED
//
#define ICMP_TIMEOUT_IN_TRANSIT 0
#define ICMP_TIMEOUT_REASSEMBLE 1 // Host may generate
//
// ICMP code definations for ICMP_TIME_EXCEEDED
//
#define ICMP_NET_REDIRECT 0
#define ICMP_HOST_REDIRECT 1
#define ICMP_NET_TOS_REDIRECT 2
#define ICMP_HOST_TOS_REDIRECT 3
//
// ICMP message classes, each class of ICMP message shares
// a common message format. INVALID_MESSAGE is only a flag.
//
#define ICMP_INVALID_MESSAGE 0
#define ICMP_ERROR_MESSAGE 1
#define ICMP_QUERY_MESSAGE 2
typedef struct {
UINT8 IcmpType;
UINT8 IcmpClass;
} IP4_ICMP_CLASS;
extern IP4_ICMP_CLASS mIcmpClass[];
extern EFI_IP4_ICMP_TYPE mIp4SupportedIcmp[];
/**
Handle the ICMP packet. First validate the message format,
then according to the message types, process it as query or
error packet.
@param[in] IpSb The IP service that receivd the packet
@param[in] Head The IP head of the ICMP query packet
@param[in] Packet The content of the ICMP query with IP head
removed.
@retval EFI_INVALID_PARAMETER The packet is malformated.
@retval EFI_SUCCESS The ICMP message is successfully processed.
@retval Others Failed to handle ICMP packet.
**/
EFI_STATUS
Ip4IcmpHandle (
IN IP4_SERVICE *IpSb,
IN IP4_HEAD *Head,
IN NET_BUF *Packet
);
#endif
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