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/** @file
Header file for ICMP protocol.
Copyright (c) 2005 - 2006, Intel Corporation.<BR>
All rights reserved. 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__
typedef enum {
//
// ICMP type definations
//
ICMP_ECHO_REPLY = 0,
ICMP_DEST_UNREACHABLE = 3,
ICMP_SOURCE_QUENCH = 4,
ICMP_REDIRECT = 5,
ICMP_ECHO_REQUEST = 8,
ICMP_TIME_EXCEEDED = 11,
ICMP_PARAMETER_PROBLEM = 12,
ICMP_TIMESTAMP = 13,
ICMP_INFO_REQUEST = 15,
ICMP_INFO_REPLY = 16,
ICMP_TYPE_MAX = ICMP_INFO_REPLY,
ICMP_DEFAULT_CODE = 0,
//
// ICMP code definations for ICMP_DEST_UNREACHABLE
//
ICMP_NET_UNREACHABLE = 0,
ICMP_HOST_UNREACHABLE = 1,
ICMP_PROTO_UNREACHABLE = 2, // Host may generate
ICMP_PORT_UNREACHABLE = 3, // Host may generate
ICMP_FRAGMENT_FAILED = 4,
ICMP_SOURCEROUTE_FAILED = 5, // Host may generate
ICMP_NET_UNKNOWN = 6,
ICMP_HOST_UNKNOWN = 7,
ICMP_SOURCE_ISOLATED = 8,
ICMP_NET_PROHIBITED = 9,
ICMP_HOST_PROHIBITED = 10,
ICMP_NET_UNREACHABLE_TOS = 11,
ICMP_HOST_UNREACHABLE_TOS = 12,
//
// ICMP code definations for ICMP_TIME_EXCEEDED
//
ICMP_TIMEOUT_IN_TRANSIT = 0,
ICMp_TIMEOUT_REASSEMBLE = 1, // Host may generate
//
// ICMP code definations for ICMP_TIME_EXCEEDED
//
ICMP_NET_REDIRECT = 0,
ICMP_HOST_REDIRECT = 1,
ICMP_NET_TOS_REDIRECT = 2,
ICMP_HOST_TOS_REDIRECT = 3,
//
// ICMP message classes, each class of ICMP message shares
// a common message format. INVALID_MESSAGE is only a flag.
//
ICMP_INVALID_MESSAGE = 0,
ICMP_ERROR_MESSAGE = 1,
ICMP_QUERY_MESSAGE = 2
} ICMP_ENUM_TYPES;
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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