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/** @file
Header file for ICMP protocol.
Copyright (c) 2005 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef __EFI_IP4_ICMP_H__
#define __EFI_IP4_ICMP_H__
//
// ICMP type definitions
//
#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 definitions 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 definitions for ICMP_TIME_EXCEEDED
//
#define ICMP_TIMEOUT_IN_TRANSIT 0
#define ICMP_TIMEOUT_REASSEMBLE 1 // Host may generate
//
// ICMP code definitions 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 IP4 service that receivd the packet.
@param[in] Head The IP4 head of the ICMP query packet.
@param[in] Packet The content of the ICMP query with IP4 head
removed.
@retval EFI_INVALID_PARAMETER The packet is malformatted.
@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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